diff options
162 files changed, 8914 insertions, 8771 deletions
@@ -2813,6 +2813,8 @@ E: luca.risolia@studio.unibo.it P: 1024D/FCE635A4 88E8 F32F 7244 68BA 3958 5D40 99DA 5D2A FCE6 35A4 D: V4L driver for W996[87]CF JPEG USB Dual Mode Camera Chips D: V4L2 driver for SN9C10x PC Camera Controllers +D: V4L2 driver for ET61X151 and ET61X251 PC Camera Controllers +D: V4L2 driver for ZC0301 Image Processor and Control Chip S: Via Liberta' 41/A S: Osio Sotto, 24046, Bergamo S: Italy diff --git a/Documentation/usb/et61x251.txt b/Documentation/usb/et61x251.txt index b44dda4..2934028 100644 --- a/Documentation/usb/et61x251.txt +++ b/Documentation/usb/et61x251.txt @@ -176,6 +176,14 @@ Description: Force the application to unmap previously mapped buffer memory 1 = force memory unmapping (save memory) Default: 0 ------------------------------------------------------------------------------- +Name: frame_timeout +Type: uint array (min = 0, max = 64) +Syntax: <n[,...]> +Description: Timeout for a video frame in seconds. This parameter is + specific for each detected camera. This parameter can be + changed at runtime thanks to the /sys filesystem interface. +Default: 2 +------------------------------------------------------------------------------- Name: debug Type: ushort Syntax: <n> @@ -266,7 +274,7 @@ the V4L2 interface. 10. Notes for V4L2 application developers -======================================== +========================================= This driver follows the V4L2 API specifications. In particular, it enforces two rules: diff --git a/Documentation/usb/sn9c102.txt b/Documentation/usb/sn9c102.txt index c6b7641..b957bea 100644 --- a/Documentation/usb/sn9c102.txt +++ b/Documentation/usb/sn9c102.txt @@ -196,6 +196,14 @@ Description: Force the application to unmap previously mapped buffer memory 1 = force memory unmapping (save memory) Default: 0 ------------------------------------------------------------------------------- +Name: frame_timeout +Type: uint array (min = 0, max = 64) +Syntax: <n[,...]> +Description: Timeout for a video frame in seconds. This parameter is + specific for each detected camera. This parameter can be + changed at runtime thanks to the /sys filesystem interface. +Default: 2 +------------------------------------------------------------------------------- Name: debug Type: ushort Syntax: <n> @@ -321,6 +329,7 @@ Vendor ID Product ID --------- ---------- 0x0c45 0x6001 0x0c45 0x6005 +0x0c45 0x6007 0x0c45 0x6009 0x0c45 0x600d 0x0c45 0x6024 @@ -370,6 +379,7 @@ HV7131D Hynix Semiconductor, Inc. MI-0343 Micron Technology, Inc. OV7630 OmniVision Technologies, Inc. PAS106B PixArt Imaging, Inc. +PAS202BCA PixArt Imaging, Inc. PAS202BCB PixArt Imaging, Inc. TAS5110C1B Taiwan Advanced Sensor Corporation TAS5130D1B Taiwan Advanced Sensor Corporation @@ -493,6 +503,7 @@ Many thanks to following persons for their contribute (listed in alphabetical order): - Luca Capello for the donation of a webcam; +- Philippe Coval for having helped testing the PAS202BCA image sensor; - Joao Rodrigo Fuzaro, Joao Limirio, Claudio Filho and Caio Begotti for the donation of a webcam; - Jon Hollstrom for the donation of a webcam; diff --git a/Documentation/usb/zc0301.txt b/Documentation/usb/zc0301.txt new file mode 100644 index 0000000..f55262c --- /dev/null +++ b/Documentation/usb/zc0301.txt @@ -0,0 +1,254 @@ + + ZC0301 Image Processor and Control Chip + Driver for Linux + ======================================= + + - Documentation - + + +Index +===== +1. Copyright +2. Disclaimer +3. License +4. Overview and features +5. Module dependencies +6. Module loading +7. Module parameters +8. Supported devices +9. Notes for V4L2 application developers +10. Contact information +11. Credits + + +1. Copyright +============ +Copyright (C) 2006 by Luca Risolia <luca.risolia@studio.unibo.it> + + +2. Disclaimer +============= +This software is not developed or sponsored by Z-Star Microelectronics Corp. +Trademarks are property of their respective owner. + + +3. License +========== +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + +4. Overview and features +======================== +This driver supports the video interface of the devices mounting the ZC0301 +Image Processor and Control Chip. + +The driver relies on the Video4Linux2 and USB core modules. It has been +designed to run properly on SMP systems as well. + +The latest version of the ZC0301 driver can be found at the following URL: +http://www.linux-projects.org/ + +Some of the features of the driver are: + +- full compliance with the Video4Linux2 API (see also "Notes for V4L2 + application developers" paragraph); +- available mmap or read/poll methods for video streaming through isochronous + data transfers; +- automatic detection of image sensor; +- video format is standard JPEG; +- dynamic driver control thanks to various module parameters (see "Module + parameters" paragraph); +- up to 64 cameras can be handled at the same time; they can be connected and + disconnected from the host many times without turning off the computer, if + the system supports hotplugging; + + +5. Module dependencies +====================== +For it to work properly, the driver needs kernel support for Video4Linux and +USB. + +The following options of the kernel configuration file must be enabled and +corresponding modules must be compiled: + + # Multimedia devices + # + CONFIG_VIDEO_DEV=m + + # USB support + # + CONFIG_USB=m + +In addition, depending on the hardware being used, the modules below are +necessary: + + # USB Host Controller Drivers + # + CONFIG_USB_EHCI_HCD=m + CONFIG_USB_UHCI_HCD=m + CONFIG_USB_OHCI_HCD=m + +The ZC0301 controller also provides a built-in microphone interface. It is +supported by the USB Audio driver thanks to the ALSA API: + + # Sound + # + CONFIG_SOUND=y + + # Advanced Linux Sound Architecture + # + CONFIG_SND=m + + # USB devices + # + CONFIG_SND_USB_AUDIO=m + +And finally: + + # USB Multimedia devices + # + CONFIG_USB_ZC0301=m + + +6. Module loading +================= +To use the driver, it is necessary to load the "zc0301" module into memory +after every other module required: "videodev", "usbcore" and, depending on +the USB host controller you have, "ehci-hcd", "uhci-hcd" or "ohci-hcd". + +Loading can be done as shown below: + + [root@localhost home]# modprobe zc0301 + +At this point the devices should be recognized. You can invoke "dmesg" to +analyze kernel messages and verify that the loading process has gone well: + + [user@localhost home]$ dmesg + + +7. Module parameters +==================== +Module parameters are listed below: +------------------------------------------------------------------------------- +Name: video_nr +Type: short array (min = 0, max = 64) +Syntax: <-1|n[,...]> +Description: Specify V4L2 minor mode number: + -1 = use next available + n = use minor number n + You can specify up to 64 cameras this way. + For example: + video_nr=-1,2,-1 would assign minor number 2 to the second + registered camera and use auto for the first one and for every + other camera. +Default: -1 +------------------------------------------------------------------------------- +Name: force_munmap +Type: bool array (min = 0, max = 64) +Syntax: <0|1[,...]> +Description: Force the application to unmap previously mapped buffer memory + before calling any VIDIOC_S_CROP or VIDIOC_S_FMT ioctl's. Not + all the applications support this feature. This parameter is + specific for each detected camera. + 0 = do not force memory unmapping + 1 = force memory unmapping (save memory) +Default: 0 +------------------------------------------------------------------------------- +Name: frame_timeout +Type: uint array (min = 0, max = 64) +Syntax: <n[,...]> +Description: Timeout for a video frame in seconds. This parameter is + specific for each detected camera. This parameter can be + changed at runtime thanks to the /sys filesystem interface. +Default: 2 +------------------------------------------------------------------------------- +Name: debug +Type: ushort +Syntax: <n> +Description: Debugging information level, from 0 to 3: + 0 = none (use carefully) + 1 = critical errors + 2 = significant informations + 3 = more verbose messages + Level 3 is useful for testing only, when only one device + is used at the same time. It also shows some more informations + about the hardware being detected. This module parameter can be + changed at runtime thanks to the /sys filesystem interface. +Default: 2 +------------------------------------------------------------------------------- + + +8. Supported devices +==================== +None of the names of the companies as well as their products will be mentioned +here. They have never collaborated with the author, so no advertising. + +From the point of view of a driver, what unambiguously identify a device are +its vendor and product USB identifiers. Below is a list of known identifiers of +devices mounting the ZC0301 Image Processor and Control Chips: + +Vendor ID Product ID +--------- ---------- +0x041e 0x4017 +0x041e 0x401c +0x041e 0x401e +0x041e 0x4034 +0x041e 0x4035 +0x046d 0x08ae +0x0ac8 0x0301 +0x10fd 0x8050 + +The list above does not imply that all those devices work with this driver: up +until now only the ones that mount the following image sensors are supported; +kernel messages will always tell you whether this is the case: + +Model Manufacturer +----- ------------ +PAS202BCB PixArt Imaging, Inc. + + +9. Notes for V4L2 application developers +======================================== +This driver follows the V4L2 API specifications. In particular, it enforces two +rules: + +- exactly one I/O method, either "mmap" or "read", is associated with each +file descriptor. Once it is selected, the application must close and reopen the +device to switch to the other I/O method; + +- although it is not mandatory, previously mapped buffer memory should always +be unmapped before calling any "VIDIOC_S_CROP" or "VIDIOC_S_FMT" ioctl's. +The same number of buffers as before will be allocated again to match the size +of the new video frames, so you have to map the buffers again before any I/O +attempts on them. + + +10. Contact information +======================= +The author may be contacted by e-mail at <luca.risolia@studio.unibo.it>. + +GPG/PGP encrypted e-mail's are accepted. The GPG key ID of the author is +'FCE635A4'; the public 1024-bit key should be available at any keyserver; +the fingerprint is: '88E8 F32F 7244 68BA 3958 5D40 99DA 5D2A FCE6 35A4'. + + +11. Credits +=========== +- Informations about the chip internals needed to enable the I2C protocol have + been taken from the documentation of the ZC030x Video4Linux1 driver written + by Andrew Birkett <andy@nobugs.org>; +- The initialization values of the ZC0301 controller connected to the PAS202BCB + image sensor have been taken from the SPCA5XX driver maintained by + Michel Xhaard <mxhaard@magic.fr>. diff --git a/MAINTAINERS b/MAINTAINERS index d788e24..7a1cbda 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2896,6 +2896,14 @@ L: video4linux-list@redhat.com W: http://www.linux-projects.org S: Maintained +USB ZC0301 DRIVER +P: Luca Risolia +M: luca.risolia@studio.unibo.it +L: linux-usb-devel@lists.sourceforge.net +L: video4linux-list@redhat.com +W: http://www.linux-projects.org +S: Maintained + USB ZD1201 DRIVER P: Jeroen Vreeken M: pe1rxq@amsat.org diff --git a/arch/mips/au1000/common/cputable.c b/arch/mips/au1000/common/cputable.c index 4dbde82..d8df5fd 100644 --- a/arch/mips/au1000/common/cputable.c +++ b/arch/mips/au1000/common/cputable.c @@ -38,7 +38,7 @@ struct cpu_spec cpu_specs[] = { { 0xffffffff, 0x02030204, "Au1100 BE", 0, 1 }, { 0xffffffff, 0x03030200, "Au1550 AA", 0, 1 }, { 0xffffffff, 0x04030200, "Au1200 AB", 0, 0 }, - { 0xffffffff, 0x04030201, "Au1200 AC", 0, 1 }, + { 0xffffffff, 0x04030201, "Au1200 AC", 1, 0 }, { 0x00000000, 0x00000000, "Unknown Au1xxx", 1, 0 }, }; diff --git a/arch/mips/au1000/common/platform.c b/arch/mips/au1000/common/platform.c index d7a8f0a..32702e5 100644 --- a/arch/mips/au1000/common/platform.c +++ b/arch/mips/au1000/common/platform.c @@ -20,7 +20,7 @@ static struct resource au1xxx_usb_ohci_resources[] = { [0] = { .start = USB_OHCI_BASE, - .end = USB_OHCI_BASE + USB_OHCI_LEN, + .end = USB_OHCI_BASE + USB_OHCI_LEN - 1, .flags = IORESOURCE_MEM, }, [1] = { @@ -278,9 +278,7 @@ static struct platform_device *au1xxx_platform_devices[] __initdata = { &au1100_lcd_device, #endif #ifdef CONFIG_SOC_AU1200 -#if 0 /* fixme */ &au1xxx_usb_ehci_device, -#endif &au1xxx_usb_gdt_device, &au1xxx_usb_otg_device, &au1200_lcd_device, diff --git a/drivers/block/ub.c b/drivers/block/ub.c index f04d864..f73446f 100644 --- a/drivers/block/ub.c +++ b/drivers/block/ub.c @@ -8,7 +8,6 @@ * and is not licensed separately. See file COPYING for details. * * TODO (sorted by decreasing priority) - * -- Kill first_open (Al Viro fixed the block layer now) * -- set readonly flag for CDs, set removable flag for CF readers * -- do inquiry and verify we got a disk and not a tape (for LUN mismatch) * -- special case some senses, e.g. 3a/0 -> no media present, reduce retries @@ -181,6 +180,7 @@ struct ub_dev; #define UB_DIR_ILLEGAL2 2 #define UB_DIR_WRITE 3 +/* P3 */ #define UB_DIR_CHAR(c) (((c)==UB_DIR_WRITE)? 'w': \ (((c)==UB_DIR_READ)? 'r': 'n')) @@ -196,24 +196,11 @@ enum ub_scsi_cmd_state { UB_CMDST_DONE /* Final state */ }; -static char *ub_scsi_cmd_stname[] = { - ". ", - "Cmd", - "dat", - "c2s", - "sts", - "clr", - "crs", - "Sen", - "fin" -}; - struct ub_scsi_cmd { unsigned char cdb[UB_MAX_CDB_SIZE]; unsigned char cdb_len; unsigned char dir; /* 0 - none, 1 - read, 3 - write. */ - unsigned char trace_index; enum ub_scsi_cmd_state state; unsigned int tag; struct ub_scsi_cmd *next; @@ -250,28 +237,6 @@ struct ub_capacity { }; /* - * The SCSI command tracing structure. - */ - -#define SCMD_ST_HIST_SZ 8 -#define SCMD_TRACE_SZ 63 /* Less than 4KB of 61-byte lines */ - -struct ub_scsi_cmd_trace { - int hcur; - unsigned int tag; - unsigned int req_size, act_size; - unsigned char op; - unsigned char dir; - unsigned char key, asc, ascq; - char st_hst[SCMD_ST_HIST_SZ]; -}; - -struct ub_scsi_trace { - int cur; - struct ub_scsi_cmd_trace vec[SCMD_TRACE_SZ]; -}; - -/* * This is a direct take-off from linux/include/completion.h * The difference is that I do not wait on this thing, just poll. * When I want to wait (ub_probe), I just use the stock completion. @@ -334,7 +299,6 @@ struct ub_lun { int changed; /* Media was changed */ int removable; int readonly; - int first_open; /* Kludge. See ub_bd_open. */ struct ub_request urq; @@ -390,7 +354,6 @@ struct ub_dev { wait_queue_head_t reset_wait; int sg_stat[6]; - struct ub_scsi_trace tr; }; /* @@ -460,137 +423,6 @@ static int ub_qlock_next = 0; static DEFINE_SPINLOCK(ub_lock); /* Locks globals and ->openc */ /* - * The SCSI command tracing procedures. - */ - -static void ub_cmdtr_new(struct ub_dev *sc, struct ub_scsi_cmd *cmd) -{ - int n; - struct ub_scsi_cmd_trace *t; - - if ((n = sc->tr.cur + 1) == SCMD_TRACE_SZ) n = 0; - t = &sc->tr.vec[n]; - - memset(t, 0, sizeof(struct ub_scsi_cmd_trace)); - t->tag = cmd->tag; - t->op = cmd->cdb[0]; - t->dir = cmd->dir; - t->req_size = cmd->len; - t->st_hst[0] = cmd->state; - - sc->tr.cur = n; - cmd->trace_index = n; -} - -static void ub_cmdtr_state(struct ub_dev *sc, struct ub_scsi_cmd *cmd) -{ - int n; - struct ub_scsi_cmd_trace *t; - - t = &sc->tr.vec[cmd->trace_index]; - if (t->tag == cmd->tag) { - if ((n = t->hcur + 1) == SCMD_ST_HIST_SZ) n = 0; - t->st_hst[n] = cmd->state; - t->hcur = n; - } -} - -static void ub_cmdtr_act_len(struct ub_dev *sc, struct ub_scsi_cmd *cmd) -{ - struct ub_scsi_cmd_trace *t; - - t = &sc->tr.vec[cmd->trace_index]; - if (t->tag == cmd->tag) - t->act_size = cmd->act_len; -} - -static void ub_cmdtr_sense(struct ub_dev *sc, struct ub_scsi_cmd *cmd, - unsigned char *sense) -{ - struct ub_scsi_cmd_trace *t; - - t = &sc->tr.vec[cmd->trace_index]; - if (t->tag == cmd->tag) { - t->key = sense[2] & 0x0F; - t->asc = sense[12]; - t->ascq = sense[13]; - } -} - -static ssize_t ub_diag_show(struct device *dev, struct device_attribute *attr, - char *page) -{ - struct usb_interface *intf; - struct ub_dev *sc; - struct list_head *p; - struct ub_lun *lun; - int cnt; - unsigned long flags; - int nc, nh; - int i, j; - struct ub_scsi_cmd_trace *t; - - intf = to_usb_interface(dev); - sc = usb_get_intfdata(intf); - if (sc == NULL) - return 0; - - cnt = 0; - spin_lock_irqsave(sc->lock, flags); - - cnt += sprintf(page + cnt, - "poison %d reset %d\n", - atomic_read(&sc->poison), sc->reset); - cnt += sprintf(page + cnt, - "qlen %d qmax %d\n", - sc->cmd_queue.qlen, sc->cmd_queue.qmax); - cnt += sprintf(page + cnt, - "sg %d %d %d %d %d .. %d\n", - sc->sg_stat[0], - sc->sg_stat[1], - sc->sg_stat[2], - sc->sg_stat[3], - sc->sg_stat[4], - sc->sg_stat[5]); - - list_for_each (p, &sc->luns) { - lun = list_entry(p, struct ub_lun, link); - cnt += sprintf(page + cnt, - "lun %u changed %d removable %d readonly %d\n", - lun->num, lun->changed, lun->removable, lun->readonly); - } - - if ((nc = sc->tr.cur + 1) == SCMD_TRACE_SZ) nc = 0; - for (j = 0; j < SCMD_TRACE_SZ; j++) { - t = &sc->tr.vec[nc]; - - cnt += sprintf(page + cnt, "%08x %02x", t->tag, t->op); - if (t->op == REQUEST_SENSE) { - cnt += sprintf(page + cnt, " [sense %x %02x %02x]", - t->key, t->asc, t->ascq); - } else { - cnt += sprintf(page + cnt, " %c", UB_DIR_CHAR(t->dir)); - cnt += sprintf(page + cnt, " [%5d %5d]", - t->req_size, t->act_size); - } - if ((nh = t->hcur + 1) == SCMD_ST_HIST_SZ) nh = 0; - for (i = 0; i < SCMD_ST_HIST_SZ; i++) { - cnt += sprintf(page + cnt, " %s", - ub_scsi_cmd_stname[(int)t->st_hst[nh]]); - if (++nh == SCMD_ST_HIST_SZ) nh = 0; - } - cnt += sprintf(page + cnt, "\n"); - - if (++nc == SCMD_TRACE_SZ) nc = 0; - } - - spin_unlock_irqrestore(sc->lock, flags); - return cnt; -} - -static DEVICE_ATTR(diag, S_IRUGO, ub_diag_show, NULL); /* N.B. World readable */ - -/* * The id allocator. * * This also stores the host for indexing by minor, which is somewhat dirty. @@ -1092,7 +924,6 @@ static int ub_scsi_cmd_start(struct ub_dev *sc, struct ub_scsi_cmd *cmd) add_timer(&sc->work_timer); cmd->state = UB_CMDST_CMD; - ub_cmdtr_state(sc, cmd); return 0; } @@ -1145,12 +976,10 @@ static void ub_scsi_dispatch(struct ub_dev *sc) ub_cmdq_pop(sc); (*cmd->done)(sc, cmd); } else if (cmd->state == UB_CMDST_INIT) { - ub_cmdtr_new(sc, cmd); if ((rc = ub_scsi_cmd_start(sc, cmd)) == 0) break; cmd->error = rc; cmd->state = UB_CMDST_DONE; - ub_cmdtr_state(sc, cmd); } else { if (!ub_is_completed(&sc->work_done)) break; @@ -1247,7 +1076,6 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd) return; } cmd->state = UB_CMDST_CLEAR; - ub_cmdtr_state(sc, cmd); return; case -ESHUTDOWN: /* unplug */ case -EILSEQ: /* unplug timeout on uhci */ @@ -1279,7 +1107,6 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd) return; } cmd->state = UB_CMDST_CLR2STS; - ub_cmdtr_state(sc, cmd); return; } if (urb->status == -EOVERFLOW) { @@ -1304,7 +1131,6 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd) if (urb->status != 0 || len != cmd->sgv[cmd->current_sg].length) { cmd->act_len += len; - ub_cmdtr_act_len(sc, cmd); cmd->error = -EIO; ub_state_stat(sc, cmd); @@ -1331,7 +1157,6 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd) } cmd->act_len += urb->actual_length; - ub_cmdtr_act_len(sc, cmd); if (++cmd->current_sg < cmd->nsg) { ub_data_start(sc, cmd); @@ -1357,7 +1182,6 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd) cmd->error = -EIO; /* A cheap trick... */ cmd->state = UB_CMDST_CLRRS; - ub_cmdtr_state(sc, cmd); return; } @@ -1441,7 +1265,6 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd) return; } cmd->state = UB_CMDST_DONE; - ub_cmdtr_state(sc, cmd); ub_cmdq_pop(sc); (*cmd->done)(sc, cmd); @@ -1496,7 +1319,6 @@ static void ub_data_start(struct ub_dev *sc, struct ub_scsi_cmd *cmd) add_timer(&sc->work_timer); cmd->state = UB_CMDST_DATA; - ub_cmdtr_state(sc, cmd); } /* @@ -1508,7 +1330,6 @@ static void ub_state_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd, int rc) cmd->error = rc; cmd->state = UB_CMDST_DONE; - ub_cmdtr_state(sc, cmd); ub_cmdq_pop(sc); (*cmd->done)(sc, cmd); } @@ -1554,7 +1375,6 @@ static void ub_state_stat(struct ub_dev *sc, struct ub_scsi_cmd *cmd) cmd->stat_count = 0; cmd->state = UB_CMDST_STAT; - ub_cmdtr_state(sc, cmd); } /* @@ -1573,7 +1393,6 @@ static void ub_state_stat_counted(struct ub_dev *sc, struct ub_scsi_cmd *cmd) return; cmd->state = UB_CMDST_STAT; - ub_cmdtr_state(sc, cmd); } /* @@ -1611,7 +1430,6 @@ static void ub_state_sense(struct ub_dev *sc, struct ub_scsi_cmd *cmd) scmd->tag = sc->tagcnt++; cmd->state = UB_CMDST_SENSE; - ub_cmdtr_state(sc, cmd); ub_cmdq_insert(sc, scmd); return; @@ -1668,11 +1486,6 @@ static void ub_top_sense_done(struct ub_dev *sc, struct ub_scsi_cmd *scmd) struct ub_scsi_cmd *cmd; /* - * Ignoring scmd->act_len, because the buffer was pre-zeroed. - */ - ub_cmdtr_sense(sc, scmd, sense); - - /* * Find the command which triggered the unit attention or a check, * save the sense into it, and advance its state machine. */ @@ -1693,6 +1506,9 @@ static void ub_top_sense_done(struct ub_dev *sc, struct ub_scsi_cmd *scmd) return; } + /* + * Ignoring scmd->act_len, because the buffer was pre-zeroed. + */ cmd->key = sense[2] & 0x0F; cmd->asc = sense[12]; cmd->ascq = sense[13]; @@ -1849,26 +1665,6 @@ static int ub_bd_open(struct inode *inode, struct file *filp) sc->openc++; spin_unlock_irqrestore(&ub_lock, flags); - /* - * This is a workaround for a specific problem in our block layer. - * In 2.6.9, register_disk duplicates the code from rescan_partitions. - * However, if we do add_disk with a device which persistently reports - * a changed media, add_disk calls register_disk, which does do_open, - * which will call rescan_paritions for changed media. After that, - * register_disk attempts to do it all again and causes double kobject - * registration and a eventually an oops on module removal. - * - * The bottom line is, Al Viro says that we should not allow - * bdev->bd_invalidated to be set when doing add_disk no matter what. - */ - if (lun->first_open) { - lun->first_open = 0; - if (lun->changed) { - rc = -ENOMEDIUM; - goto err_open; - } - } - if (lun->removable || lun->readonly) check_disk_change(inode->i_bdev); @@ -2007,9 +1803,8 @@ static int ub_sync_tur(struct ub_dev *sc, struct ub_lun *lun) init_completion(&compl); rc = -ENOMEM; - if ((cmd = kmalloc(ALLOC_SIZE, GFP_KERNEL)) == NULL) + if ((cmd = kzalloc(ALLOC_SIZE, GFP_KERNEL)) == NULL) goto err_alloc; - memset(cmd, 0, ALLOC_SIZE); cmd->cdb[0] = TEST_UNIT_READY; cmd->cdb_len = 6; @@ -2062,9 +1857,8 @@ static int ub_sync_read_cap(struct ub_dev *sc, struct ub_lun *lun, init_completion(&compl); rc = -ENOMEM; - if ((cmd = kmalloc(ALLOC_SIZE, GFP_KERNEL)) == NULL) + if ((cmd = kzalloc(ALLOC_SIZE, GFP_KERNEL)) == NULL) goto err_alloc; - memset(cmd, 0, ALLOC_SIZE); p = (char *)cmd + sizeof(struct ub_scsi_cmd); cmd->cdb[0] = 0x25; @@ -2405,9 +2199,8 @@ static int ub_probe(struct usb_interface *intf, return -ENXIO; rc = -ENOMEM; - if ((sc = kmalloc(sizeof(struct ub_dev), GFP_KERNEL)) == NULL) + if ((sc = kzalloc(sizeof(struct ub_dev), GFP_KERNEL)) == NULL) goto err_core; - memset(sc, 0, sizeof(struct ub_dev)); sc->lock = ub_next_lock(); INIT_LIST_HEAD(&sc->luns); usb_init_urb(&sc->work_urb); @@ -2438,9 +2231,6 @@ static int ub_probe(struct usb_interface *intf, if (ub_get_pipes(sc, sc->dev, intf) != 0) goto err_dev_desc; - if (device_create_file(&sc->intf->dev, &dev_attr_diag) != 0) - goto err_diag; - /* * At this point, all USB initialization is done, do upper layer. * We really hate halfway initialized structures, so from the @@ -2480,19 +2270,8 @@ static int ub_probe(struct usb_interface *intf, nluns = 1; for (i = 0; i < 3; i++) { - if ((rc = ub_sync_getmaxlun(sc)) < 0) { - /* - * This segment is taken from usb-storage. They say - * that ZIP-100 needs this, but my own ZIP-100 works - * fine without this. - * Still, it does not seem to hurt anything. - */ - if (rc == -EPIPE) { - ub_probe_clear_stall(sc, sc->recv_bulk_pipe); - ub_probe_clear_stall(sc, sc->send_bulk_pipe); - } + if ((rc = ub_sync_getmaxlun(sc)) < 0) break; - } if (rc != 0) { nluns = rc; break; @@ -2505,8 +2284,6 @@ static int ub_probe(struct usb_interface *intf, } return 0; - /* device_remove_file(&sc->intf->dev, &dev_attr_diag); */ -err_diag: err_dev_desc: usb_set_intfdata(intf, NULL); // usb_put_intf(sc->intf); @@ -2524,9 +2301,8 @@ static int ub_probe_lun(struct ub_dev *sc, int lnum) int rc; rc = -ENOMEM; - if ((lun = kmalloc(sizeof(struct ub_lun), GFP_KERNEL)) == NULL) + if ((lun = kzalloc(sizeof(struct ub_lun), GFP_KERNEL)) == NULL) goto err_alloc; - memset(lun, 0, sizeof(struct ub_lun)); lun->num = lnum; rc = -ENOSR; @@ -2541,7 +2317,6 @@ static int ub_probe_lun(struct ub_dev *sc, int lnum) lun->removable = 1; /* XXX Query this from the device */ lun->changed = 1; /* ub_revalidate clears only */ - lun->first_open = 1; ub_revalidate(sc, lun); rc = -ENOMEM; @@ -2636,7 +2411,6 @@ static void ub_disconnect(struct usb_interface *intf) while ((cmd = ub_cmdq_peek(sc)) != NULL) { cmd->error = -ENOTCONN; cmd->state = UB_CMDST_DONE; - ub_cmdtr_state(sc, cmd); ub_cmdq_pop(sc); (*cmd->done)(sc, cmd); cnt++; @@ -2687,7 +2461,6 @@ static void ub_disconnect(struct usb_interface *intf) * and no URBs left in transit. */ - device_remove_file(&sc->intf->dev, &dev_attr_diag); usb_set_intfdata(intf, NULL); // usb_put_intf(sc->intf); sc->intf = NULL; diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c index 8936058..6e2ec56 100644 --- a/drivers/net/irda/irda-usb.c +++ b/drivers/net/irda/irda-usb.c @@ -740,7 +740,7 @@ static void irda_usb_receive(struct urb *urb, struct pt_regs *regs) struct sk_buff *newskb; struct sk_buff *dataskb; struct urb *next_urb; - int docopy; + unsigned int len, docopy; IRDA_DEBUG(2, "%s(), len=%d\n", __FUNCTION__, urb->actual_length); @@ -851,10 +851,11 @@ static void irda_usb_receive(struct urb *urb, struct pt_regs *regs) dataskb->dev = self->netdev; dataskb->mac.raw = dataskb->data; dataskb->protocol = htons(ETH_P_IRDA); + len = dataskb->len; netif_rx(dataskb); /* Keep stats up to date */ - self->stats.rx_bytes += dataskb->len; + self->stats.rx_bytes += len; self->stats.rx_packets++; self->netdev->last_rx = jiffies; diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index 85dacc9..b1222cd 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -10,6 +10,7 @@ menu "USB support" config USB_ARCH_HAS_HCD boolean default y if USB_ARCH_HAS_OHCI + default y if USB_ARCH_HAS_EHCI default y if ARM # SL-811 default PCI @@ -22,6 +23,7 @@ config USB_ARCH_HAS_OHCI default y if ARCH_LH7A404 default y if ARCH_S3C2410 default y if PXA27x + default y if ARCH_AT91RM9200 # PPC: default y if STB03xxx default y if PPC_MPC52xx @@ -30,6 +32,13 @@ config USB_ARCH_HAS_OHCI # more: default PCI +# some non-PCI hcds implement EHCI +config USB_ARCH_HAS_EHCI + boolean + default y if PPC_83xx + default y if SOC_AU1200 + default PCI + # ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface. config USB tristate "Support for Host-side USB" diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index 36e476d..bb36a1c 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -15,10 +15,9 @@ obj-$(CONFIG_USB_OHCI_HCD) += host/ obj-$(CONFIG_USB_UHCI_HCD) += host/ obj-$(CONFIG_USB_SL811_HCD) += host/ obj-$(CONFIG_ETRAX_USB_HOST) += host/ +obj-$(CONFIG_USB_OHCI_AT91) += host/ obj-$(CONFIG_USB_ACM) += class/ -obj-$(CONFIG_USB_AUDIO) += class/ -obj-$(CONFIG_USB_MIDI) += class/ obj-$(CONFIG_USB_PRINTER) += class/ obj-$(CONFIG_USB_STORAGE) += storage/ @@ -48,6 +47,7 @@ obj-$(CONFIG_USB_SN9C102) += media/ obj-$(CONFIG_USB_STV680) += media/ obj-$(CONFIG_USB_VICAM) += media/ obj-$(CONFIG_USB_W9968CF) += media/ +obj-$(CONFIG_USB_ZC0301) += media/ obj-$(CONFIG_USB_CATC) += net/ obj-$(CONFIG_USB_KAWETH) += net/ diff --git a/drivers/usb/class/Kconfig b/drivers/usb/class/Kconfig index ef105a9..3a9102d 100644 --- a/drivers/usb/class/Kconfig +++ b/drivers/usb/class/Kconfig @@ -4,53 +4,6 @@ comment "USB Device Class drivers" depends on USB -config OBSOLETE_OSS_USB_DRIVER - bool "Obsolete OSS USB drivers" - depends on USB && SOUND - help - This option enables support for the obsolete USB Audio and Midi - drivers that are scheduled for removal in the near future since - there are ALSA drivers for the same hardware. - - Please contact Adrian Bunk <bunk@stusta.de> if you had to - say Y here because of missing support in the ALSA drivers. - - If unsure, say N. - -config USB_AUDIO - tristate "USB Audio support" - depends on USB && SOUND && OBSOLETE_OSS_USB_DRIVER - help - Say Y here if you want to connect USB audio equipment such as - speakers to your computer's USB port. You only need this if you use - the OSS sound driver; ALSA has its own option for usb audio support. - - To compile this driver as a module, choose M here: the - module will be called audio. - -config USB_MIDI - tristate "USB MIDI support" - depends on USB && SOUND && OBSOLETE_OSS_USB_DRIVER - ---help--- - Say Y here if you want to connect a USB MIDI device to your - computer's USB port. You only need this if you use the OSS - sound system; USB MIDI devices are supported by ALSA's USB - audio driver. This driver is for devices that comply with - 'Universal Serial Bus Device Class Definition for MIDI Device'. - - The following devices are known to work: - * Steinberg USB2MIDI - * Roland MPU64 - * Roland PC-300 - * Roland SC8850 - * Roland UM-1 - * Roland UM-2 - * Roland UA-100 - * Yamaha MU1000 - - To compile this driver as a module, choose M here: the - module will be called usb-midi. - config USB_ACM tristate "USB Modem (CDC ACM) support" depends on USB diff --git a/drivers/usb/class/Makefile b/drivers/usb/class/Makefile index 2294712..cc391e6 100644 --- a/drivers/usb/class/Makefile +++ b/drivers/usb/class/Makefile @@ -4,6 +4,4 @@ # obj-$(CONFIG_USB_ACM) += cdc-acm.o -obj-$(CONFIG_USB_AUDIO) += audio.o -obj-$(CONFIG_USB_MIDI) += usb-midi.o obj-$(CONFIG_USB_PRINTER) += usblp.o diff --git a/drivers/usb/class/audio.c b/drivers/usb/class/audio.c deleted file mode 100644 index 3ad9ee8..0000000 --- a/drivers/usb/class/audio.c +++ /dev/null @@ -1,3869 +0,0 @@ -/*****************************************************************************/ - -/* - * audio.c -- USB Audio Class driver - * - * Copyright (C) 1999, 2000, 2001, 2003, 2004 - * Alan Cox (alan@lxorguk.ukuu.org.uk) - * Thomas Sailer (sailer@ife.ee.ethz.ch) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * Debugging: - * Use the 'lsusb' utility to dump the descriptors. - * - * 1999-09-07: Alan Cox - * Parsing Audio descriptor patch - * 1999-09-08: Thomas Sailer - * Added OSS compatible data io functions; both parts of the - * driver remain to be glued together - * 1999-09-10: Thomas Sailer - * Beautified the driver. Added sample format conversions. - * Still not properly glued with the parsing code. - * The parsing code seems to have its problems btw, - * Since it parses all available configs but doesn't - * store which iface/altsetting belongs to which config. - * 1999-09-20: Thomas Sailer - * Threw out Alan's parsing code and implemented my own one. - * You cannot reasonnably linearly parse audio descriptors, - * especially the AudioClass descriptors have to be considered - * pointer lists. Mixer parsing untested, due to lack of device. - * First stab at synch pipe implementation, the Dallas USB DAC - * wants to use an Asynch out pipe. usb_audio_state now basically - * only contains lists of mixer and wave devices. We can therefore - * now have multiple mixer/wave devices per USB device. - * 1999-10-28: Thomas Sailer - * Converted to URB API. Fixed a taskstate/wakeup semantics mistake - * that made the driver consume all available CPU cycles. - * Now runs stable on UHCI-Acher/Fliegl/Sailer. - * 1999-10-31: Thomas Sailer - * Audio can now be unloaded if it is not in use by any mixer - * or dsp client (formerly you had to disconnect the audio devices - * from the USB port) - * Finally, about three months after ordering, my "Maxxtro SPK222" - * speakers arrived, isn't disdata a great mail order company 8-) - * Parse class specific endpoint descriptor of the audiostreaming - * interfaces and take the endpoint attributes from there. - * Unbelievably, the Philips USB DAC has a sampling rate range - * of over a decade, yet does not support the sampling rate control! - * No wonder it sounds so bad, has very audible sampling rate - * conversion distortion. Don't try to listen to it using - * decent headphones! - * "Let's make things better" -> but please Philips start with your - * own stuff!!!! - * 1999-11-02: Thomas Sailer - * It takes the Philips boxes several seconds to acquire synchronisation - * that means they won't play short sounds. Should probably maintain - * the ISO datastream even if there's nothing to play. - * Fix counting the total_bytes counter, RealPlayer G2 depends on it. - * 1999-12-20: Thomas Sailer - * Fix bad bug in conversion to per interface probing. - * disconnect was called multiple times for the audio device, - * leading to a premature freeing of the audio structures - * 2000-05-13: Thomas Sailer - * I don't remember who changed the find_format routine, - * but the change was completely broken for the Dallas - * chip. Anyway taking sampling rate into account in find_format - * is bad and should not be done unless there are devices with - * completely broken audio descriptors. Unless someone shows - * me such a descriptor, I will not allow find_format to - * take the sampling rate into account. - * Also, the former find_format made: - * - mpg123 play mono instead of stereo - * - sox completely fail for wav's with sample rates < 44.1kHz - * for the Dallas chip. - * Also fix a rather long standing problem with applications that - * use "small" writes producing no sound at all. - * 2000-05-15: Thomas Sailer - * My fears came true, the Philips camera indeed has pretty stupid - * audio descriptors. - * 2000-05-17: Thomas Sailer - * Nemsoft spotted my stupid last minute change, thanks - * 2000-05-19: Thomas Sailer - * Fixed FEATURE_UNIT thinkos found thanks to the KC Technology - * Xtend device. Basically the driver treated FEATURE_UNIT's sourced - * by mono terminals as stereo. - * 2000-05-20: Thomas Sailer - * SELECTOR support (and thus selecting record channels from the mixer). - * Somewhat peculiar due to OSS interface limitations. Only works - * for channels where a "slider" is already in front of it (i.e. - * a MIXER unit or a FEATURE unit with volume capability). - * 2000-11-26: Thomas Sailer - * Workaround for Dallas DS4201. The DS4201 uses PCM8 as format tag for - * its 8 bit modes, but expects signed data (and should therefore have used PCM). - * 2001-03-10: Thomas Sailer - * provide abs function, prevent picking up a bogus kernel macro - * for abs. Bug report by Andrew Morton <andrewm@uow.edu.au> - * 2001-06-16: Bryce Nesbitt <bryce@obviously.com> - * Fix SNDCTL_DSP_STEREO API violation - * 2003-04-08: Oliver Neukum (oliver@neukum.name): - * Setting a configuration is done by usbcore and must not be overridden - * 2004-02-27: Workaround for broken synch descriptors - * 2004-03-07: Alan Stern <stern@rowland.harvard.edu> - * Add usb_ifnum_to_if() and usb_altnum_to_altsetting() support. - * Use the in-memory descriptors instead of reading them from the device. - * - */ - -/* - * Strategy: - * - * Alan Cox and Thomas Sailer are starting to dig at opposite ends and - * are hoping to meet in the middle, just like tunnel diggers :) - * Alan tackles the descriptor parsing, Thomas the actual data IO and the - * OSS compatible interface. - * - * Data IO implementation issues - * - * A mmap'able ring buffer per direction is implemented, because - * almost every OSS app expects it. It is however impractical to - * transmit/receive USB data directly into and out of the ring buffer, - * due to alignment and synchronisation issues. Instead, the ring buffer - * feeds a constant time delay line that handles the USB issues. - * - * Now we first try to find an alternate setting that exactly matches - * the sample format requested by the user. If we find one, we do not - * need to perform any sample rate conversions. If there is no matching - * altsetting, we choose the closest one and perform sample format - * conversions. We never do sample rate conversion; these are too - * expensive to be performed in the kernel. - * - * Current status: no known HCD-specific issues. - * - * Generally: Due to the brokenness of the Audio Class spec - * it seems generally impossible to write a generic Audio Class driver, - * so a reasonable driver should implement the features that are actually - * used. - * - * Parsing implementation issues - * - * One cannot reasonably parse the AudioClass descriptors linearly. - * Therefore the current implementation features routines to look - * for a specific descriptor in the descriptor list. - * - * How does the parsing work? First, all interfaces are searched - * for an AudioControl class interface. If found, the config descriptor - * that belongs to the current configuration is searched and - * the HEADER descriptor is found. It contains a list of - * all AudioStreaming and MIDIStreaming devices. This list is then walked, - * and all AudioStreaming interfaces are classified into input and output - * interfaces (according to the endpoint0 direction in altsetting1) (MIDIStreaming - * is currently not supported). The input & output list is then used - * to group inputs and outputs together and issued pairwise to the - * AudioStreaming class parser. Finally, all OUTPUT_TERMINAL descriptors - * are walked and issued to the mixer construction routine. - * - * The AudioStreaming parser simply enumerates all altsettings belonging - * to the specified interface. It looks for AS_GENERAL and FORMAT_TYPE - * class specific descriptors to extract the sample format/sample rate - * data. Only sample format types PCM and PCM8 are supported right now, and - * only FORMAT_TYPE_I is handled. The isochronous data endpoint needs to - * be the first endpoint of the interface, and the optional synchronisation - * isochronous endpoint the second one. - * - * Mixer construction works as follows: The various TERMINAL and UNIT - * descriptors span a tree from the root (OUTPUT_TERMINAL) through the - * intermediate nodes (UNITs) to the leaves (INPUT_TERMINAL). We walk - * that tree in a depth first manner. FEATURE_UNITs may contribute volume, - * bass and treble sliders to the mixer, MIXER_UNITs volume sliders. - * The terminal type encoded in the INPUT_TERMINALs feeds a heuristic - * to determine "meaningful" OSS slider numbers, however we will see - * how well this works in practice. Other features are not used at the - * moment, they seem less often used. Also, it seems difficult at least - * to construct recording source switches from SELECTOR_UNITs, but - * since there are not many USB ADC's available, we leave that for later. - */ - -/*****************************************************************************/ - -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/timer.h> -#include <linux/sched.h> -#include <linux/smp_lock.h> -#include <linux/module.h> -#include <linux/sound.h> -#include <linux/soundcard.h> -#include <linux/list.h> -#include <linux/vmalloc.h> -#include <linux/init.h> -#include <linux/poll.h> -#include <linux/bitops.h> -#include <asm/uaccess.h> -#include <asm/io.h> -#include <linux/usb.h> - -#include "audio.h" - -/* - * Version Information - */ -#define DRIVER_VERSION "v1.0.0" -#define DRIVER_AUTHOR "Alan Cox <alan@lxorguk.ukuu.org.uk>, Thomas Sailer (sailer@ife.ee.ethz.ch)" -#define DRIVER_DESC "USB Audio Class driver" - -#define AUDIO_DEBUG 1 - -#define SND_DEV_DSP16 5 - -#define dprintk(x) - -/* --------------------------------------------------------------------- */ - -/* - * Linked list of all audio devices... - */ -static struct list_head audiodevs = LIST_HEAD_INIT(audiodevs); -static DECLARE_MUTEX(open_sem); - -/* - * wait queue for processes wanting to open an USB audio device - */ -static DECLARE_WAIT_QUEUE_HEAD(open_wait); - - -#define MAXFORMATS MAX_ALT -#define DMABUFSHIFT 17 /* 128k worth of DMA buffer */ -#define NRSGBUF (1U<<(DMABUFSHIFT-PAGE_SHIFT)) - -/* - * This influences: - * - Latency - * - Interrupt rate - * - Synchronisation behaviour - * Don't touch this if you don't understand all of the above. - */ -#define DESCFRAMES 5 -#define SYNCFRAMES DESCFRAMES - -#define MIXFLG_STEREOIN 1 -#define MIXFLG_STEREOOUT 2 - -struct mixerchannel { - __u16 value; - __u16 osschannel; /* number of the OSS channel */ - __s16 minval, maxval; - __u16 slctunitid; - __u8 unitid; - __u8 selector; - __u8 chnum; - __u8 flags; -}; - -struct audioformat { - unsigned int format; - unsigned int sratelo; - unsigned int sratehi; - unsigned char altsetting; - unsigned char attributes; -}; - -struct dmabuf { - /* buffer data format */ - unsigned int format; - unsigned int srate; - /* physical buffer */ - unsigned char *sgbuf[NRSGBUF]; - unsigned bufsize; - unsigned numfrag; - unsigned fragshift; - unsigned wrptr, rdptr; - unsigned total_bytes; - int count; - unsigned error; /* over/underrun */ - wait_queue_head_t wait; - /* redundant, but makes calculations easier */ - unsigned fragsize; - unsigned dmasize; - /* OSS stuff */ - unsigned mapped:1; - unsigned ready:1; - unsigned ossfragshift; - int ossmaxfrags; - unsigned subdivision; -}; - -struct usb_audio_state; - -#define FLG_URB0RUNNING 1 -#define FLG_URB1RUNNING 2 -#define FLG_SYNC0RUNNING 4 -#define FLG_SYNC1RUNNING 8 -#define FLG_RUNNING 16 -#define FLG_CONNECTED 32 - -struct my_data_urb { - struct urb *urb; -}; - -struct my_sync_urb { - struct urb *urb; -}; - - -struct usb_audiodev { - struct list_head list; - struct usb_audio_state *state; - - /* soundcore stuff */ - int dev_audio; - - /* wave stuff */ - mode_t open_mode; - spinlock_t lock; /* DMA buffer access spinlock */ - - struct usbin { - int interface; /* Interface number, -1 means not used */ - unsigned int format; /* USB data format */ - unsigned int datapipe; /* the data input pipe */ - unsigned int syncpipe; /* the synchronisation pipe - 0 for anything but adaptive IN mode */ - unsigned int syncinterval; /* P for adaptive IN mode, 0 otherwise */ - unsigned int freqn; /* nominal sampling rate in USB format, i.e. fs/1000 in Q10.14 */ - unsigned int freqmax; /* maximum sampling rate, used for buffer management */ - unsigned int phase; /* phase accumulator */ - unsigned int flags; /* see FLG_ defines */ - - struct my_data_urb durb[2]; /* ISO descriptors for the data endpoint */ - struct my_sync_urb surb[2]; /* ISO sync pipe descriptor if needed */ - - struct dmabuf dma; - } usbin; - - struct usbout { - int interface; /* Interface number, -1 means not used */ - unsigned int format; /* USB data format */ - unsigned int datapipe; /* the data input pipe */ - unsigned int syncpipe; /* the synchronisation pipe - 0 for anything but asynchronous OUT mode */ - unsigned int syncinterval; /* P for asynchronous OUT mode, 0 otherwise */ - unsigned int freqn; /* nominal sampling rate in USB format, i.e. fs/1000 in Q10.14 */ - unsigned int freqm; /* momentary sampling rate in USB format, i.e. fs/1000 in Q10.14 */ - unsigned int freqmax; /* maximum sampling rate, used for buffer management */ - unsigned int phase; /* phase accumulator */ - unsigned int flags; /* see FLG_ defines */ - - struct my_data_urb durb[2]; /* ISO descriptors for the data endpoint */ - struct my_sync_urb surb[2]; /* ISO sync pipe descriptor if needed */ - - struct dmabuf dma; - } usbout; - - - unsigned int numfmtin, numfmtout; - struct audioformat fmtin[MAXFORMATS]; - struct audioformat fmtout[MAXFORMATS]; -}; - -struct usb_mixerdev { - struct list_head list; - struct usb_audio_state *state; - - /* soundcore stuff */ - int dev_mixer; - - unsigned char iface; /* interface number of the AudioControl interface */ - - /* USB format descriptions */ - unsigned int numch, modcnt; - - /* mixch is last and gets allocated dynamically */ - struct mixerchannel ch[0]; -}; - -struct usb_audio_state { - struct list_head audiodev; - - /* USB device */ - struct usb_device *usbdev; - - struct list_head audiolist; - struct list_head mixerlist; - - unsigned count; /* usage counter; NOTE: the usb stack is also considered a user */ -}; - -/* private audio format extensions */ -#define AFMT_STEREO 0x80000000 -#define AFMT_ISSTEREO(x) ((x) & AFMT_STEREO) -#define AFMT_IS16BIT(x) ((x) & (AFMT_S16_LE|AFMT_S16_BE|AFMT_U16_LE|AFMT_U16_BE)) -#define AFMT_ISUNSIGNED(x) ((x) & (AFMT_U8|AFMT_U16_LE|AFMT_U16_BE)) -#define AFMT_BYTESSHIFT(x) ((AFMT_ISSTEREO(x) ? 1 : 0) + (AFMT_IS16BIT(x) ? 1 : 0)) -#define AFMT_BYTES(x) (1<<AFMT_BYTESSHFIT(x)) - -/* --------------------------------------------------------------------- */ - -static inline unsigned ld2(unsigned int x) -{ - unsigned r = 0; - - if (x >= 0x10000) { - x >>= 16; - r += 16; - } - if (x >= 0x100) { - x >>= 8; - r += 8; - } - if (x >= 0x10) { - x >>= 4; - r += 4; - } - if (x >= 4) { - x >>= 2; - r += 2; - } - if (x >= 2) - r++; - return r; -} - -/* --------------------------------------------------------------------- */ - -/* - * OSS compatible ring buffer management. The ring buffer may be mmap'ed into - * an application address space. - * - * I first used the rvmalloc stuff copied from bttv. Alan Cox did not like it, so - * we now use an array of pointers to a single page each. This saves us the - * kernel page table manipulations, but we have to do a page table alike mechanism - * (though only one indirection) in software. - */ - -static void dmabuf_release(struct dmabuf *db) -{ - unsigned int nr; - void *p; - - for(nr = 0; nr < NRSGBUF; nr++) { - if (!(p = db->sgbuf[nr])) - continue; - ClearPageReserved(virt_to_page(p)); - free_page((unsigned long)p); - db->sgbuf[nr] = NULL; - } - db->mapped = db->ready = 0; -} - -static int dmabuf_init(struct dmabuf *db) -{ - unsigned int nr, bytepersec, bufs; - void *p; - - /* initialize some fields */ - db->rdptr = db->wrptr = db->total_bytes = db->count = db->error = 0; - /* calculate required buffer size */ - bytepersec = db->srate << AFMT_BYTESSHIFT(db->format); - bufs = 1U << DMABUFSHIFT; - if (db->ossfragshift) { - if ((1000 << db->ossfragshift) < bytepersec) - db->fragshift = ld2(bytepersec/1000); - else - db->fragshift = db->ossfragshift; - } else { - db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1)); - if (db->fragshift < 3) - db->fragshift = 3; - } - db->numfrag = bufs >> db->fragshift; - while (db->numfrag < 4 && db->fragshift > 3) { - db->fragshift--; - db->numfrag = bufs >> db->fragshift; - } - db->fragsize = 1 << db->fragshift; - if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag) - db->numfrag = db->ossmaxfrags; - db->dmasize = db->numfrag << db->fragshift; - for(nr = 0; nr < NRSGBUF; nr++) { - if (!db->sgbuf[nr]) { - p = (void *)get_zeroed_page(GFP_KERNEL); - if (!p) - return -ENOMEM; - db->sgbuf[nr] = p; - SetPageReserved(virt_to_page(p)); - } - memset(db->sgbuf[nr], AFMT_ISUNSIGNED(db->format) ? 0x80 : 0, PAGE_SIZE); - if ((nr << PAGE_SHIFT) >= db->dmasize) - break; - } - db->bufsize = nr << PAGE_SHIFT; - db->ready = 1; - dprintk((KERN_DEBUG "usbaudio: dmabuf_init bytepersec %d bufs %d ossfragshift %d ossmaxfrags %d " - "fragshift %d fragsize %d numfrag %d dmasize %d bufsize %d fmt 0x%x srate %d\n", - bytepersec, bufs, db->ossfragshift, db->ossmaxfrags, db->fragshift, db->fragsize, - db->numfrag, db->dmasize, db->bufsize, db->format, db->srate)); - return 0; -} - -static int dmabuf_mmap(struct vm_area_struct *vma, struct dmabuf *db, unsigned long start, unsigned long size, pgprot_t prot) -{ - unsigned int nr; - - if (!db->ready || db->mapped || (start | size) & (PAGE_SIZE-1) || size > db->bufsize) - return -EINVAL; - size >>= PAGE_SHIFT; - for(nr = 0; nr < size; nr++) - if (!db->sgbuf[nr]) - return -EINVAL; - db->mapped = 1; - for(nr = 0; nr < size; nr++) { - unsigned long pfn; - - pfn = virt_to_phys(db->sgbuf[nr]) >> PAGE_SHIFT; - if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, prot)) - return -EAGAIN; - start += PAGE_SIZE; - } - return 0; -} - -static void dmabuf_copyin(struct dmabuf *db, const void *buffer, unsigned int size) -{ - unsigned int pgrem, rem; - - db->total_bytes += size; - for (;;) { - if (size <= 0) - return; - pgrem = ((~db->wrptr) & (PAGE_SIZE-1)) + 1; - if (pgrem > size) - pgrem = size; - rem = db->dmasize - db->wrptr; - if (pgrem > rem) - pgrem = rem; - memcpy((db->sgbuf[db->wrptr >> PAGE_SHIFT]) + (db->wrptr & (PAGE_SIZE-1)), buffer, pgrem); - size -= pgrem; - buffer += pgrem; - db->wrptr += pgrem; - if (db->wrptr >= db->dmasize) - db->wrptr = 0; - } -} - -static void dmabuf_copyout(struct dmabuf *db, void *buffer, unsigned int size) -{ - unsigned int pgrem, rem; - - db->total_bytes += size; - for (;;) { - if (size <= 0) - return; - pgrem = ((~db->rdptr) & (PAGE_SIZE-1)) + 1; - if (pgrem > size) - pgrem = size; - rem = db->dmasize - db->rdptr; - if (pgrem > rem) - pgrem = rem; - memcpy(buffer, (db->sgbuf[db->rdptr >> PAGE_SHIFT]) + (db->rdptr & (PAGE_SIZE-1)), pgrem); - size -= pgrem; - buffer += pgrem; - db->rdptr += pgrem; - if (db->rdptr >= db->dmasize) - db->rdptr = 0; - } -} - -static int dmabuf_copyin_user(struct dmabuf *db, unsigned int ptr, const void __user *buffer, unsigned int size) -{ - unsigned int pgrem, rem; - - if (!db->ready || db->mapped) - return -EINVAL; - for (;;) { - if (size <= 0) - return 0; - pgrem = ((~ptr) & (PAGE_SIZE-1)) + 1; - if (pgrem > size) - pgrem = size; - rem = db->dmasize - ptr; - if (pgrem > rem) - pgrem = rem; - if (copy_from_user((db->sgbuf[ptr >> PAGE_SHIFT]) + (ptr & (PAGE_SIZE-1)), buffer, pgrem)) - return -EFAULT; - size -= pgrem; - buffer += pgrem; - ptr += pgrem; - if (ptr >= db->dmasize) - ptr = 0; - } -} - -static int dmabuf_copyout_user(struct dmabuf *db, unsigned int ptr, void __user *buffer, unsigned int size) -{ - unsigned int pgrem, rem; - - if (!db->ready || db->mapped) - return -EINVAL; - for (;;) { - if (size <= 0) - return 0; - pgrem = ((~ptr) & (PAGE_SIZE-1)) + 1; - if (pgrem > size) - pgrem = size; - rem = db->dmasize - ptr; - if (pgrem > rem) - pgrem = rem; - if (copy_to_user(buffer, (db->sgbuf[ptr >> PAGE_SHIFT]) + (ptr & (PAGE_SIZE-1)), pgrem)) - return -EFAULT; - size -= pgrem; - buffer += pgrem; - ptr += pgrem; - if (ptr >= db->dmasize) - ptr = 0; - } -} - -/* --------------------------------------------------------------------- */ -/* - * USB I/O code. We do sample format conversion if necessary - */ - -static void usbin_stop(struct usb_audiodev *as) -{ - struct usbin *u = &as->usbin; - unsigned long flags; - unsigned int i, notkilled = 1; - - spin_lock_irqsave(&as->lock, flags); - u->flags &= ~FLG_RUNNING; - i = u->flags; - spin_unlock_irqrestore(&as->lock, flags); - while (i & (FLG_URB0RUNNING|FLG_URB1RUNNING|FLG_SYNC0RUNNING|FLG_SYNC1RUNNING)) { - if (notkilled) - schedule_timeout_interruptible(1); - else - schedule_timeout_uninterruptible(1); - spin_lock_irqsave(&as->lock, flags); - i = u->flags; - spin_unlock_irqrestore(&as->lock, flags); - if (notkilled && signal_pending(current)) { - if (i & FLG_URB0RUNNING) - usb_kill_urb(u->durb[0].urb); - if (i & FLG_URB1RUNNING) - usb_kill_urb(u->durb[1].urb); - if (i & FLG_SYNC0RUNNING) - usb_kill_urb(u->surb[0].urb); - if (i & FLG_SYNC1RUNNING) - usb_kill_urb(u->surb[1].urb); - notkilled = 0; - } - } - set_current_state(TASK_RUNNING); - kfree(u->durb[0].urb->transfer_buffer); - kfree(u->durb[1].urb->transfer_buffer); - kfree(u->surb[0].urb->transfer_buffer); - kfree(u->surb[1].urb->transfer_buffer); - u->durb[0].urb->transfer_buffer = u->durb[1].urb->transfer_buffer = - u->surb[0].urb->transfer_buffer = u->surb[1].urb->transfer_buffer = NULL; -} - -static inline void usbin_release(struct usb_audiodev *as) -{ - usbin_stop(as); -} - -static void usbin_disc(struct usb_audiodev *as) -{ - struct usbin *u = &as->usbin; - - unsigned long flags; - - spin_lock_irqsave(&as->lock, flags); - u->flags &= ~(FLG_RUNNING | FLG_CONNECTED); - spin_unlock_irqrestore(&as->lock, flags); - usbin_stop(as); -} - -static void conversion(const void *ibuf, unsigned int ifmt, void *obuf, unsigned int ofmt, void *tmp, unsigned int scnt) -{ - unsigned int cnt, i; - __s16 *sp, *sp2, s; - unsigned char *bp; - - cnt = scnt; - if (AFMT_ISSTEREO(ifmt)) - cnt <<= 1; - sp = ((__s16 *)tmp) + cnt; - switch (ifmt & ~AFMT_STEREO) { - case AFMT_U8: - for (bp = ((unsigned char *)ibuf)+cnt, i = 0; i < cnt; i++) { - bp--; - sp--; - *sp = (*bp ^ 0x80) << 8; - } - break; - - case AFMT_S8: - for (bp = ((unsigned char *)ibuf)+cnt, i = 0; i < cnt; i++) { - bp--; - sp--; - *sp = *bp << 8; - } - break; - - case AFMT_U16_LE: - for (bp = ((unsigned char *)ibuf)+2*cnt, i = 0; i < cnt; i++) { - bp -= 2; - sp--; - *sp = (bp[0] | (bp[1] << 8)) ^ 0x8000; - } - break; - - case AFMT_U16_BE: - for (bp = ((unsigned char *)ibuf)+2*cnt, i = 0; i < cnt; i++) { - bp -= 2; - sp--; - *sp = (bp[1] | (bp[0] << 8)) ^ 0x8000; - } - break; - - case AFMT_S16_LE: - for (bp = ((unsigned char *)ibuf)+2*cnt, i = 0; i < cnt; i++) { - bp -= 2; - sp--; - *sp = bp[0] | (bp[1] << 8); - } - break; - - case AFMT_S16_BE: - for (bp = ((unsigned char *)ibuf)+2*cnt, i = 0; i < cnt; i++) { - bp -= 2; - sp--; - *sp = bp[1] | (bp[0] << 8); - } - break; - } - if (!AFMT_ISSTEREO(ifmt) && AFMT_ISSTEREO(ofmt)) { - /* expand from mono to stereo */ - for (sp = ((__s16 *)tmp)+scnt, sp2 = ((__s16 *)tmp)+2*scnt, i = 0; i < scnt; i++) { - sp--; - sp2 -= 2; - sp2[0] = sp2[1] = sp[0]; - } - } - if (AFMT_ISSTEREO(ifmt) && !AFMT_ISSTEREO(ofmt)) { - /* contract from stereo to mono */ - for (sp = sp2 = ((__s16 *)tmp), i = 0; i < scnt; i++, sp++, sp2 += 2) - sp[0] = (sp2[0] + sp2[1]) >> 1; - } - cnt = scnt; - if (AFMT_ISSTEREO(ofmt)) - cnt <<= 1; - sp = ((__s16 *)tmp); - bp = ((unsigned char *)obuf); - switch (ofmt & ~AFMT_STEREO) { - case AFMT_U8: - for (i = 0; i < cnt; i++, sp++, bp++) - *bp = (*sp >> 8) ^ 0x80; - break; - - case AFMT_S8: - for (i = 0; i < cnt; i++, sp++, bp++) - *bp = *sp >> 8; - break; - - case AFMT_U16_LE: - for (i = 0; i < cnt; i++, sp++, bp += 2) { - s = *sp; - bp[0] = s; - bp[1] = (s >> 8) ^ 0x80; - } - break; - - case AFMT_U16_BE: - for (i = 0; i < cnt; i++, sp++, bp += 2) { - s = *sp; - bp[1] = s; - bp[0] = (s >> 8) ^ 0x80; - } - break; - - case AFMT_S16_LE: - for (i = 0; i < cnt; i++, sp++, bp += 2) { - s = *sp; - bp[0] = s; - bp[1] = s >> 8; - } - break; - - case AFMT_S16_BE: - for (i = 0; i < cnt; i++, sp++, bp += 2) { - s = *sp; - bp[1] = s; - bp[0] = s >> 8; - } - break; - } - -} - -static void usbin_convert(struct usbin *u, unsigned char *buffer, unsigned int samples) -{ - union { - __s16 s[64]; - unsigned char b[0]; - } tmp; - unsigned int scnt, maxs, ufmtsh, dfmtsh; - - ufmtsh = AFMT_BYTESSHIFT(u->format); - dfmtsh = AFMT_BYTESSHIFT(u->dma.format); - maxs = (AFMT_ISSTEREO(u->dma.format | u->format)) ? 32 : 64; - while (samples > 0) { - scnt = samples; - if (scnt > maxs) - scnt = maxs; - conversion(buffer, u->format, tmp.b, u->dma.format, tmp.b, scnt); - dmabuf_copyin(&u->dma, tmp.b, scnt << dfmtsh); - buffer += scnt << ufmtsh; - samples -= scnt; - } -} - -static int usbin_prepare_desc(struct usbin *u, struct urb *urb) -{ - unsigned int i, maxsize, offs; - - maxsize = (u->freqmax + 0x3fff) >> (14 - AFMT_BYTESSHIFT(u->format)); - //printk(KERN_DEBUG "usbin_prepare_desc: maxsize %d freq 0x%x format 0x%x\n", maxsize, u->freqn, u->format); - for (i = offs = 0; i < DESCFRAMES; i++, offs += maxsize) { - urb->iso_frame_desc[i].length = maxsize; - urb->iso_frame_desc[i].offset = offs; - } - urb->interval = 1; - return 0; -} - -/* - * return value: 0 if descriptor should be restarted, -1 otherwise - * convert sample format on the fly if necessary - */ -static int usbin_retire_desc(struct usbin *u, struct urb *urb) -{ - unsigned int i, ufmtsh, dfmtsh, err = 0, cnt, scnt, dmafree; - unsigned char *cp; - - ufmtsh = AFMT_BYTESSHIFT(u->format); - dfmtsh = AFMT_BYTESSHIFT(u->dma.format); - for (i = 0; i < DESCFRAMES; i++) { - cp = ((unsigned char *)urb->transfer_buffer) + urb->iso_frame_desc[i].offset; - if (urb->iso_frame_desc[i].status) { - dprintk((KERN_DEBUG "usbin_retire_desc: frame %u status %d\n", i, urb->iso_frame_desc[i].status)); - continue; - } - scnt = urb->iso_frame_desc[i].actual_length >> ufmtsh; - if (!scnt) - continue; - cnt = scnt << dfmtsh; - if (!u->dma.mapped) { - dmafree = u->dma.dmasize - u->dma.count; - if (cnt > dmafree) { - scnt = dmafree >> dfmtsh; - cnt = scnt << dfmtsh; - err++; - } - } - u->dma.count += cnt; - if (u->format == u->dma.format) { - /* we do not need format conversion */ - dprintk((KERN_DEBUG "usbaudio: no sample format conversion\n")); - dmabuf_copyin(&u->dma, cp, cnt); - } else { - /* we need sampling format conversion */ - dprintk((KERN_DEBUG "usbaudio: sample format conversion %x != %x\n", u->format, u->dma.format)); - usbin_convert(u, cp, scnt); - } - } - if (err) - u->dma.error++; - if (u->dma.count >= (signed)u->dma.fragsize) - wake_up(&u->dma.wait); - return err ? -1 : 0; -} - -static void usbin_completed(struct urb *urb, struct pt_regs *regs) -{ - struct usb_audiodev *as = (struct usb_audiodev *)urb->context; - struct usbin *u = &as->usbin; - unsigned long flags; - unsigned int mask; - int suret = 0; - -#if 0 - printk(KERN_DEBUG "usbin_completed: status %d errcnt %d flags 0x%x\n", urb->status, urb->error_count, u->flags); -#endif - if (urb == u->durb[0].urb) - mask = FLG_URB0RUNNING; - else if (urb == u->durb[1].urb) - mask = FLG_URB1RUNNING; - else { - mask = 0; - printk(KERN_ERR "usbin_completed: panic: unknown URB\n"); - } - urb->dev = as->state->usbdev; - spin_lock_irqsave(&as->lock, flags); - if (!usbin_retire_desc(u, urb) && - u->flags & FLG_RUNNING && - !usbin_prepare_desc(u, urb) && - (suret = usb_submit_urb(urb, GFP_ATOMIC)) == 0) { - u->flags |= mask; - } else { - u->flags &= ~(mask | FLG_RUNNING); - wake_up(&u->dma.wait); - printk(KERN_DEBUG "usbin_completed: descriptor not restarted (usb_submit_urb: %d)\n", suret); - } - spin_unlock_irqrestore(&as->lock, flags); -} - -/* - * we output sync data - */ -static int usbin_sync_prepare_desc(struct usbin *u, struct urb *urb) -{ - unsigned char *cp = urb->transfer_buffer; - unsigned int i, offs; - - for (i = offs = 0; i < SYNCFRAMES; i++, offs += 3, cp += 3) { - urb->iso_frame_desc[i].length = 3; - urb->iso_frame_desc[i].offset = offs; - cp[0] = u->freqn; - cp[1] = u->freqn >> 8; - cp[2] = u->freqn >> 16; - } - urb->interval = 1; - return 0; -} - -/* - * return value: 0 if descriptor should be restarted, -1 otherwise - */ -static int usbin_sync_retire_desc(struct usbin *u, struct urb *urb) -{ - unsigned int i; - - for (i = 0; i < SYNCFRAMES; i++) - if (urb->iso_frame_desc[0].status) - dprintk((KERN_DEBUG "usbin_sync_retire_desc: frame %u status %d\n", i, urb->iso_frame_desc[i].status)); - return 0; -} - -static void usbin_sync_completed(struct urb *urb, struct pt_regs *regs) -{ - struct usb_audiodev *as = (struct usb_audiodev *)urb->context; - struct usbin *u = &as->usbin; - unsigned long flags; - unsigned int mask; - int suret = 0; - -#if 0 - printk(KERN_DEBUG "usbin_sync_completed: status %d errcnt %d flags 0x%x\n", urb->status, urb->error_count, u->flags); -#endif - if (urb == u->surb[0].urb) - mask = FLG_SYNC0RUNNING; - else if (urb == u->surb[1].urb) - mask = FLG_SYNC1RUNNING; - else { - mask = 0; - printk(KERN_ERR "usbin_sync_completed: panic: unknown URB\n"); - } - urb->dev = as->state->usbdev; - spin_lock_irqsave(&as->lock, flags); - if (!usbin_sync_retire_desc(u, urb) && - u->flags & FLG_RUNNING && - !usbin_sync_prepare_desc(u, urb) && - (suret = usb_submit_urb(urb, GFP_ATOMIC)) == 0) { - u->flags |= mask; - } else { - u->flags &= ~(mask | FLG_RUNNING); - wake_up(&u->dma.wait); - dprintk((KERN_DEBUG "usbin_sync_completed: descriptor not restarted (usb_submit_urb: %d)\n", suret)); - } - spin_unlock_irqrestore(&as->lock, flags); -} - -static int usbin_start(struct usb_audiodev *as) -{ - struct usb_device *dev = as->state->usbdev; - struct usbin *u = &as->usbin; - struct urb *urb; - unsigned long flags; - unsigned int maxsze, bufsz; - -#if 0 - printk(KERN_DEBUG "usbin_start: device %d ufmt 0x%08x dfmt 0x%08x srate %d\n", - dev->devnum, u->format, u->dma.format, u->dma.srate); -#endif - /* allocate USB storage if not already done */ - spin_lock_irqsave(&as->lock, flags); - if (!(u->flags & FLG_CONNECTED)) { - spin_unlock_irqrestore(&as->lock, flags); - return -EIO; - } - if (!(u->flags & FLG_RUNNING)) { - spin_unlock_irqrestore(&as->lock, flags); - u->freqn = ((u->dma.srate << 11) + 62) / 125; /* this will overflow at approx 2MSPS */ - u->freqmax = u->freqn + (u->freqn >> 2); - u->phase = 0; - maxsze = (u->freqmax + 0x3fff) >> (14 - AFMT_BYTESSHIFT(u->format)); - bufsz = DESCFRAMES * maxsze; - kfree(u->durb[0].urb->transfer_buffer); - u->durb[0].urb->transfer_buffer = kmalloc(bufsz, GFP_KERNEL); - u->durb[0].urb->transfer_buffer_length = bufsz; - kfree(u->durb[1].urb->transfer_buffer); - u->durb[1].urb->transfer_buffer = kmalloc(bufsz, GFP_KERNEL); - u->durb[1].urb->transfer_buffer_length = bufsz; - if (u->syncpipe) { - kfree(u->surb[0].urb->transfer_buffer); - u->surb[0].urb->transfer_buffer = kmalloc(3*SYNCFRAMES, GFP_KERNEL); - u->surb[0].urb->transfer_buffer_length = 3*SYNCFRAMES; - kfree(u->surb[1].urb->transfer_buffer); - u->surb[1].urb->transfer_buffer = kmalloc(3*SYNCFRAMES, GFP_KERNEL); - u->surb[1].urb->transfer_buffer_length = 3*SYNCFRAMES; - } - if (!u->durb[0].urb->transfer_buffer || !u->durb[1].urb->transfer_buffer || - (u->syncpipe && (!u->surb[0].urb->transfer_buffer || !u->surb[1].urb->transfer_buffer))) { - printk(KERN_ERR "usbaudio: cannot start playback device %d\n", dev->devnum); - return 0; - } - spin_lock_irqsave(&as->lock, flags); - } - if (u->dma.count >= u->dma.dmasize && !u->dma.mapped) { - spin_unlock_irqrestore(&as->lock, flags); - return 0; - } - u->flags |= FLG_RUNNING; - if (!(u->flags & FLG_URB0RUNNING)) { - urb = u->durb[0].urb; - urb->dev = dev; - urb->pipe = u->datapipe; - urb->transfer_flags = URB_ISO_ASAP; - urb->number_of_packets = DESCFRAMES; - urb->context = as; - urb->complete = usbin_completed; - if (!usbin_prepare_desc(u, urb) && !usb_submit_urb(urb, GFP_KERNEL)) - u->flags |= FLG_URB0RUNNING; - else - u->flags &= ~FLG_RUNNING; - } - if (u->flags & FLG_RUNNING && !(u->flags & FLG_URB1RUNNING)) { - urb = u->durb[1].urb; - urb->dev = dev; - urb->pipe = u->datapipe; - urb->transfer_flags = URB_ISO_ASAP; - urb->number_of_packets = DESCFRAMES; - urb->context = as; - urb->complete = usbin_completed; - if (!usbin_prepare_desc(u, urb) && !usb_submit_urb(urb, GFP_KERNEL)) - u->flags |= FLG_URB1RUNNING; - else - u->flags &= ~FLG_RUNNING; - } - if (u->syncpipe) { - if (u->flags & FLG_RUNNING && !(u->flags & FLG_SYNC0RUNNING)) { - urb = u->surb[0].urb; - urb->dev = dev; - urb->pipe = u->syncpipe; - urb->transfer_flags = URB_ISO_ASAP; - urb->number_of_packets = SYNCFRAMES; - urb->context = as; - urb->complete = usbin_sync_completed; - /* stride: u->syncinterval */ - if (!usbin_sync_prepare_desc(u, urb) && !usb_submit_urb(urb, GFP_KERNEL)) - u->flags |= FLG_SYNC0RUNNING; - else - u->flags &= ~FLG_RUNNING; - } - if (u->flags & FLG_RUNNING && !(u->flags & FLG_SYNC1RUNNING)) { - urb = u->surb[1].urb; - urb->dev = dev; - urb->pipe = u->syncpipe; - urb->transfer_flags = URB_ISO_ASAP; - urb->number_of_packets = SYNCFRAMES; - urb->context = as; - urb->complete = usbin_sync_completed; - /* stride: u->syncinterval */ - if (!usbin_sync_prepare_desc(u, urb) && !usb_submit_urb(urb, GFP_KERNEL)) - u->flags |= FLG_SYNC1RUNNING; - else - u->flags &= ~FLG_RUNNING; - } - } - spin_unlock_irqrestore(&as->lock, flags); - return 0; -} - -static void usbout_stop(struct usb_audiodev *as) -{ - struct usbout *u = &as->usbout; - unsigned long flags; - unsigned int i, notkilled = 1; - - spin_lock_irqsave(&as->lock, flags); - u->flags &= ~FLG_RUNNING; - i = u->flags; - spin_unlock_irqrestore(&as->lock, flags); - while (i & (FLG_URB0RUNNING|FLG_URB1RUNNING|FLG_SYNC0RUNNING|FLG_SYNC1RUNNING)) { - if (notkilled) - schedule_timeout_interruptible(1); - else - schedule_timeout_uninterruptible(1); - spin_lock_irqsave(&as->lock, flags); - i = u->flags; - spin_unlock_irqrestore(&as->lock, flags); - if (notkilled && signal_pending(current)) { - if (i & FLG_URB0RUNNING) - usb_kill_urb(u->durb[0].urb); - if (i & FLG_URB1RUNNING) - usb_kill_urb(u->durb[1].urb); - if (i & FLG_SYNC0RUNNING) - usb_kill_urb(u->surb[0].urb); - if (i & FLG_SYNC1RUNNING) - usb_kill_urb(u->surb[1].urb); - notkilled = 0; - } - } - set_current_state(TASK_RUNNING); - kfree(u->durb[0].urb->transfer_buffer); - kfree(u->durb[1].urb->transfer_buffer); - kfree(u->surb[0].urb->transfer_buffer); - kfree(u->surb[1].urb->transfer_buffer); - u->durb[0].urb->transfer_buffer = u->durb[1].urb->transfer_buffer = - u->surb[0].urb->transfer_buffer = u->surb[1].urb->transfer_buffer = NULL; -} - -static inline void usbout_release(struct usb_audiodev *as) -{ - usbout_stop(as); -} - -static void usbout_disc(struct usb_audiodev *as) -{ - struct usbout *u = &as->usbout; - unsigned long flags; - - spin_lock_irqsave(&as->lock, flags); - u->flags &= ~(FLG_RUNNING | FLG_CONNECTED); - spin_unlock_irqrestore(&as->lock, flags); - usbout_stop(as); -} - -static void usbout_convert(struct usbout *u, unsigned char *buffer, unsigned int samples) -{ - union { - __s16 s[64]; - unsigned char b[0]; - } tmp; - unsigned int scnt, maxs, ufmtsh, dfmtsh; - - ufmtsh = AFMT_BYTESSHIFT(u->format); - dfmtsh = AFMT_BYTESSHIFT(u->dma.format); - maxs = (AFMT_ISSTEREO(u->dma.format | u->format)) ? 32 : 64; - while (samples > 0) { - scnt = samples; - if (scnt > maxs) - scnt = maxs; - dmabuf_copyout(&u->dma, tmp.b, scnt << dfmtsh); - conversion(tmp.b, u->dma.format, buffer, u->format, tmp.b, scnt); - buffer += scnt << ufmtsh; - samples -= scnt; - } -} - -static int usbout_prepare_desc(struct usbout *u, struct urb *urb) -{ - unsigned int i, ufmtsh, dfmtsh, err = 0, cnt, scnt, offs; - unsigned char *cp = urb->transfer_buffer; - - ufmtsh = AFMT_BYTESSHIFT(u->format); - dfmtsh = AFMT_BYTESSHIFT(u->dma.format); - for (i = offs = 0; i < DESCFRAMES; i++) { - urb->iso_frame_desc[i].offset = offs; - u->phase = (u->phase & 0x3fff) + u->freqm; - scnt = u->phase >> 14; - if (!scnt) { - urb->iso_frame_desc[i].length = 0; - continue; - } - cnt = scnt << dfmtsh; - if (!u->dma.mapped) { - if (cnt > u->dma.count) { - scnt = u->dma.count >> dfmtsh; - cnt = scnt << dfmtsh; - err++; - } - u->dma.count -= cnt; - } else - u->dma.count += cnt; - if (u->format == u->dma.format) { - /* we do not need format conversion */ - dmabuf_copyout(&u->dma, cp, cnt); - } else { - /* we need sampling format conversion */ - usbout_convert(u, cp, scnt); - } - cnt = scnt << ufmtsh; - urb->iso_frame_desc[i].length = cnt; - offs += cnt; - cp += cnt; - } - urb->interval = 1; - if (err) - u->dma.error++; - if (u->dma.mapped) { - if (u->dma.count >= (signed)u->dma.fragsize) - wake_up(&u->dma.wait); - } else { - if ((signed)u->dma.dmasize >= u->dma.count + (signed)u->dma.fragsize) - wake_up(&u->dma.wait); - } - return err ? -1 : 0; -} - -/* - * return value: 0 if descriptor should be restarted, -1 otherwise - */ -static int usbout_retire_desc(struct usbout *u, struct urb *urb) -{ - unsigned int i; - - for (i = 0; i < DESCFRAMES; i++) { - if (urb->iso_frame_desc[i].status) { - dprintk((KERN_DEBUG "usbout_retire_desc: frame %u status %d\n", i, urb->iso_frame_desc[i].status)); - continue; - } - } - return 0; -} - -static void usbout_completed(struct urb *urb, struct pt_regs *regs) -{ - struct usb_audiodev *as = (struct usb_audiodev *)urb->context; - struct usbout *u = &as->usbout; - unsigned long flags; - unsigned int mask; - int suret = 0; - -#if 0 - printk(KERN_DEBUG "usbout_completed: status %d errcnt %d flags 0x%x\n", urb->status, urb->error_count, u->flags); -#endif - if (urb == u->durb[0].urb) - mask = FLG_URB0RUNNING; - else if (urb == u->durb[1].urb) - mask = FLG_URB1RUNNING; - else { - mask = 0; - printk(KERN_ERR "usbout_completed: panic: unknown URB\n"); - } - urb->dev = as->state->usbdev; - spin_lock_irqsave(&as->lock, flags); - if (!usbout_retire_desc(u, urb) && - u->flags & FLG_RUNNING && - !usbout_prepare_desc(u, urb) && - (suret = usb_submit_urb(urb, GFP_ATOMIC)) == 0) { - u->flags |= mask; - } else { - u->flags &= ~(mask | FLG_RUNNING); - wake_up(&u->dma.wait); - dprintk((KERN_DEBUG "usbout_completed: descriptor not restarted (usb_submit_urb: %d)\n", suret)); - } - spin_unlock_irqrestore(&as->lock, flags); -} - -static int usbout_sync_prepare_desc(struct usbout *u, struct urb *urb) -{ - unsigned int i, offs; - - for (i = offs = 0; i < SYNCFRAMES; i++, offs += 3) { - urb->iso_frame_desc[i].length = 3; - urb->iso_frame_desc[i].offset = offs; - } - urb->interval = 1; - return 0; -} - -/* - * return value: 0 if descriptor should be restarted, -1 otherwise - */ -static int usbout_sync_retire_desc(struct usbout *u, struct urb *urb) -{ - unsigned char *cp = urb->transfer_buffer; - unsigned int f, i; - - for (i = 0; i < SYNCFRAMES; i++, cp += 3) { - if (urb->iso_frame_desc[i].status) { - dprintk((KERN_DEBUG "usbout_sync_retire_desc: frame %u status %d\n", i, urb->iso_frame_desc[i].status)); - continue; - } - if (urb->iso_frame_desc[i].actual_length < 3) { - dprintk((KERN_DEBUG "usbout_sync_retire_desc: frame %u length %d\n", i, urb->iso_frame_desc[i].actual_length)); - continue; - } - f = cp[0] | (cp[1] << 8) | (cp[2] << 16); - if (abs(f - u->freqn) > (u->freqn >> 3) || f > u->freqmax) { - printk(KERN_WARNING "usbout_sync_retire_desc: requested frequency %u (nominal %u) out of range!\n", f, u->freqn); - continue; - } - u->freqm = f; - } - return 0; -} - -static void usbout_sync_completed(struct urb *urb, struct pt_regs *regs) -{ - struct usb_audiodev *as = (struct usb_audiodev *)urb->context; - struct usbout *u = &as->usbout; - unsigned long flags; - unsigned int mask; - int suret = 0; - -#if 0 - printk(KERN_DEBUG "usbout_sync_completed: status %d errcnt %d flags 0x%x\n", urb->status, urb->error_count, u->flags); -#endif - if (urb == u->surb[0].urb) - mask = FLG_SYNC0RUNNING; - else if (urb == u->surb[1].urb) - mask = FLG_SYNC1RUNNING; - else { - mask = 0; - printk(KERN_ERR "usbout_sync_completed: panic: unknown URB\n"); - } - urb->dev = as->state->usbdev; - spin_lock_irqsave(&as->lock, flags); - if (!usbout_sync_retire_desc(u, urb) && - u->flags & FLG_RUNNING && - !usbout_sync_prepare_desc(u, urb) && - (suret = usb_submit_urb(urb, GFP_ATOMIC)) == 0) { - u->flags |= mask; - } else { - u->flags &= ~(mask | FLG_RUNNING); - wake_up(&u->dma.wait); - dprintk((KERN_DEBUG "usbout_sync_completed: descriptor not restarted (usb_submit_urb: %d)\n", suret)); - } - spin_unlock_irqrestore(&as->lock, flags); -} - -static int usbout_start(struct usb_audiodev *as) -{ - struct usb_device *dev = as->state->usbdev; - struct usbout *u = &as->usbout; - struct urb *urb; - unsigned long flags; - unsigned int maxsze, bufsz; - -#if 0 - printk(KERN_DEBUG "usbout_start: device %d ufmt 0x%08x dfmt 0x%08x srate %d\n", - dev->devnum, u->format, u->dma.format, u->dma.srate); -#endif - /* allocate USB storage if not already done */ - spin_lock_irqsave(&as->lock, flags); - if (!(u->flags & FLG_CONNECTED)) { - spin_unlock_irqrestore(&as->lock, flags); - return -EIO; - } - if (!(u->flags & FLG_RUNNING)) { - spin_unlock_irqrestore(&as->lock, flags); - u->freqn = u->freqm = ((u->dma.srate << 11) + 62) / 125; /* this will overflow at approx 2MSPS */ - u->freqmax = u->freqn + (u->freqn >> 2); - u->phase = 0; - maxsze = (u->freqmax + 0x3fff) >> (14 - AFMT_BYTESSHIFT(u->format)); - bufsz = DESCFRAMES * maxsze; - kfree(u->durb[0].urb->transfer_buffer); - u->durb[0].urb->transfer_buffer = kmalloc(bufsz, GFP_KERNEL); - u->durb[0].urb->transfer_buffer_length = bufsz; - kfree(u->durb[1].urb->transfer_buffer); - u->durb[1].urb->transfer_buffer = kmalloc(bufsz, GFP_KERNEL); - u->durb[1].urb->transfer_buffer_length = bufsz; - if (u->syncpipe) { - kfree(u->surb[0].urb->transfer_buffer); - u->surb[0].urb->transfer_buffer = kmalloc(3*SYNCFRAMES, GFP_KERNEL); - u->surb[0].urb->transfer_buffer_length = 3*SYNCFRAMES; - kfree(u->surb[1].urb->transfer_buffer); - u->surb[1].urb->transfer_buffer = kmalloc(3*SYNCFRAMES, GFP_KERNEL); - u->surb[1].urb->transfer_buffer_length = 3*SYNCFRAMES; - } - if (!u->durb[0].urb->transfer_buffer || !u->durb[1].urb->transfer_buffer || - (u->syncpipe && (!u->surb[0].urb->transfer_buffer || !u->surb[1].urb->transfer_buffer))) { - printk(KERN_ERR "usbaudio: cannot start playback device %d\n", dev->devnum); - return 0; - } - spin_lock_irqsave(&as->lock, flags); - } - if (u->dma.count <= 0 && !u->dma.mapped) { - spin_unlock_irqrestore(&as->lock, flags); - return 0; - } - u->flags |= FLG_RUNNING; - if (!(u->flags & FLG_URB0RUNNING)) { - urb = u->durb[0].urb; - urb->dev = dev; - urb->pipe = u->datapipe; - urb->transfer_flags = URB_ISO_ASAP; - urb->number_of_packets = DESCFRAMES; - urb->context = as; - urb->complete = usbout_completed; - if (!usbout_prepare_desc(u, urb) && !usb_submit_urb(urb, GFP_ATOMIC)) - u->flags |= FLG_URB0RUNNING; - else - u->flags &= ~FLG_RUNNING; - } - if (u->flags & FLG_RUNNING && !(u->flags & FLG_URB1RUNNING)) { - urb = u->durb[1].urb; - urb->dev = dev; - urb->pipe = u->datapipe; - urb->transfer_flags = URB_ISO_ASAP; - urb->number_of_packets = DESCFRAMES; - urb->context = as; - urb->complete = usbout_completed; - if (!usbout_prepare_desc(u, urb) && !usb_submit_urb(urb, GFP_ATOMIC)) - u->flags |= FLG_URB1RUNNING; - else - u->flags &= ~FLG_RUNNING; - } - if (u->syncpipe) { - if (u->flags & FLG_RUNNING && !(u->flags & FLG_SYNC0RUNNING)) { - urb = u->surb[0].urb; - urb->dev = dev; - urb->pipe = u->syncpipe; - urb->transfer_flags = URB_ISO_ASAP; - urb->number_of_packets = SYNCFRAMES; - urb->context = as; - urb->complete = usbout_sync_completed; - /* stride: u->syncinterval */ - if (!usbout_sync_prepare_desc(u, urb) && !usb_submit_urb(urb, GFP_ATOMIC)) - u->flags |= FLG_SYNC0RUNNING; - else - u->flags &= ~FLG_RUNNING; - } - if (u->flags & FLG_RUNNING && !(u->flags & FLG_SYNC1RUNNING)) { - urb = u->surb[1].urb; - urb->dev = dev; - urb->pipe = u->syncpipe; - urb->transfer_flags = URB_ISO_ASAP; - urb->number_of_packets = SYNCFRAMES; - urb->context = as; - urb->complete = usbout_sync_completed; - /* stride: u->syncinterval */ - if (!usbout_sync_prepare_desc(u, urb) && !usb_submit_urb(urb, GFP_ATOMIC)) - u->flags |= FLG_SYNC1RUNNING; - else - u->flags &= ~FLG_RUNNING; - } - } - spin_unlock_irqrestore(&as->lock, flags); - return 0; -} - -/* --------------------------------------------------------------------- */ - -static unsigned int format_goodness(struct audioformat *afp, unsigned int fmt, unsigned int srate) -{ - unsigned int g = 0; - - if (srate < afp->sratelo) - g += afp->sratelo - srate; - if (srate > afp->sratehi) - g += srate - afp->sratehi; - if (AFMT_ISSTEREO(afp->format) && !AFMT_ISSTEREO(fmt)) - g += 0x100000; - if (!AFMT_ISSTEREO(afp->format) && AFMT_ISSTEREO(fmt)) - g += 0x400000; - if (AFMT_IS16BIT(afp->format) && !AFMT_IS16BIT(fmt)) - g += 0x100000; - if (!AFMT_IS16BIT(afp->format) && AFMT_IS16BIT(fmt)) - g += 0x400000; - return g; -} - -static int find_format(struct audioformat *afp, unsigned int nr, unsigned int fmt, unsigned int srate) -{ - unsigned int i, g, gb = ~0; - int j = -1; /* default to failure */ - - /* find "best" format (according to format_goodness) */ - for (i = 0; i < nr; i++) { - g = format_goodness(&afp[i], fmt, srate); - if (g >= gb) - continue; - j = i; - gb = g; - } - return j; -} - -static int set_format_in(struct usb_audiodev *as) -{ - struct usb_device *dev = as->state->usbdev; - struct usb_host_interface *alts; - struct usb_interface *iface; - struct usbin *u = &as->usbin; - struct dmabuf *d = &u->dma; - struct audioformat *fmt; - unsigned int ep; - unsigned char data[3]; - int fmtnr, ret; - - iface = usb_ifnum_to_if(dev, u->interface); - if (!iface) - return 0; - - fmtnr = find_format(as->fmtin, as->numfmtin, d->format, d->srate); - if (fmtnr < 0) { - printk(KERN_ERR "usbaudio: set_format_in(): failed to find desired format/speed combination.\n"); - return -1; - } - - fmt = as->fmtin + fmtnr; - alts = usb_altnum_to_altsetting(iface, fmt->altsetting); - u->format = fmt->format; - u->datapipe = usb_rcvisocpipe(dev, alts->endpoint[0].desc.bEndpointAddress & 0xf); - u->syncpipe = u->syncinterval = 0; - if ((alts->endpoint[0].desc.bmAttributes & 0x0c) == 0x08) { - if (alts->desc.bNumEndpoints < 2 || - alts->endpoint[1].desc.bmAttributes != 0x01 || - alts->endpoint[1].desc.bSynchAddress != 0 || - alts->endpoint[1].desc.bEndpointAddress != (alts->endpoint[0].desc.bSynchAddress & 0x7f)) { - printk(KERN_WARNING "usbaudio: device %d interface %d altsetting %d claims adaptive in " - "but has invalid synch pipe; treating as asynchronous in\n", - dev->devnum, u->interface, fmt->altsetting); - } else { - u->syncpipe = usb_sndisocpipe(dev, alts->endpoint[1].desc.bEndpointAddress & 0xf); - u->syncinterval = alts->endpoint[1].desc.bRefresh; - } - } - if (d->srate < fmt->sratelo) - d->srate = fmt->sratelo; - if (d->srate > fmt->sratehi) - d->srate = fmt->sratehi; - dprintk((KERN_DEBUG "usbaudio: set_format_in: usb_set_interface %u %u\n", - u->interface, fmt->altsetting)); - if (usb_set_interface(dev, alts->desc.bInterfaceNumber, fmt->altsetting) < 0) { - printk(KERN_WARNING "usbaudio: usb_set_interface failed, device %d interface %d altsetting %d\n", - dev->devnum, u->interface, fmt->altsetting); - return -1; - } - if (fmt->sratelo == fmt->sratehi) - return 0; - ep = usb_pipeendpoint(u->datapipe) | (u->datapipe & USB_DIR_IN); - /* if endpoint has pitch control, enable it */ - if (fmt->attributes & 0x02) { - data[0] = 1; - if ((ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, - PITCH_CONTROL << 8, ep, data, 1, 1000)) < 0) { - printk(KERN_ERR "usbaudio: failure (error %d) to set output pitch control device %d interface %u endpoint 0x%x to %u\n", - ret, dev->devnum, u->interface, ep, d->srate); - return -1; - } - } - /* if endpoint has sampling rate control, set it */ - if (fmt->attributes & 0x01) { - data[0] = d->srate; - data[1] = d->srate >> 8; - data[2] = d->srate >> 16; - if ((ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, - SAMPLING_FREQ_CONTROL << 8, ep, data, 3, 1000)) < 0) { - printk(KERN_ERR "usbaudio: failure (error %d) to set input sampling frequency device %d interface %u endpoint 0x%x to %u\n", - ret, dev->devnum, u->interface, ep, d->srate); - return -1; - } - if ((ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_CUR, USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_IN, - SAMPLING_FREQ_CONTROL << 8, ep, data, 3, 1000)) < 0) { - printk(KERN_ERR "usbaudio: failure (error %d) to get input sampling frequency device %d interface %u endpoint 0x%x\n", - ret, dev->devnum, u->interface, ep); - return -1; - } - dprintk((KERN_DEBUG "usbaudio: set_format_in: device %d interface %d altsetting %d srate req: %u real %u\n", - dev->devnum, u->interface, fmt->altsetting, d->srate, data[0] | (data[1] << 8) | (data[2] << 16))); - d->srate = data[0] | (data[1] << 8) | (data[2] << 16); - } - dprintk((KERN_DEBUG "usbaudio: set_format_in: USB format 0x%x, DMA format 0x%x srate %u\n", u->format, d->format, d->srate)); - return 0; -} - -static int set_format_out(struct usb_audiodev *as) -{ - struct usb_device *dev = as->state->usbdev; - struct usb_host_interface *alts; - struct usb_interface *iface; - struct usbout *u = &as->usbout; - struct dmabuf *d = &u->dma; - struct audioformat *fmt; - unsigned int ep; - unsigned char data[3]; - int fmtnr, ret; - - iface = usb_ifnum_to_if(dev, u->interface); - if (!iface) - return 0; - - fmtnr = find_format(as->fmtout, as->numfmtout, d->format, d->srate); - if (fmtnr < 0) { - printk(KERN_ERR "usbaudio: set_format_out(): failed to find desired format/speed combination.\n"); - return -1; - } - - fmt = as->fmtout + fmtnr; - u->format = fmt->format; - alts = usb_altnum_to_altsetting(iface, fmt->altsetting); - u->datapipe = usb_sndisocpipe(dev, alts->endpoint[0].desc.bEndpointAddress & 0xf); - u->syncpipe = u->syncinterval = 0; - if ((alts->endpoint[0].desc.bmAttributes & 0x0c) == 0x04) { -#if 0 - printk(KERN_DEBUG "bNumEndpoints 0x%02x endpoint[1].bmAttributes 0x%02x\n" - KERN_DEBUG "endpoint[1].bSynchAddress 0x%02x endpoint[1].bEndpointAddress 0x%02x\n" - KERN_DEBUG "endpoint[0].bSynchAddress 0x%02x\n", alts->bNumEndpoints, - alts->endpoint[1].bmAttributes, alts->endpoint[1].bSynchAddress, - alts->endpoint[1].bEndpointAddress, alts->endpoint[0].bSynchAddress); -#endif - if (alts->desc.bNumEndpoints < 2 || - alts->endpoint[1].desc.bmAttributes != 0x01 || - alts->endpoint[1].desc.bSynchAddress != 0 || - alts->endpoint[1].desc.bEndpointAddress != (alts->endpoint[0].desc.bSynchAddress | 0x80)) { - printk(KERN_WARNING "usbaudio: device %d interface %d altsetting %d claims asynch out " - "but has invalid synch pipe; treating as adaptive out\n", - dev->devnum, u->interface, fmt->altsetting); - } else { - u->syncpipe = usb_rcvisocpipe(dev, alts->endpoint[1].desc.bEndpointAddress & 0xf); - u->syncinterval = alts->endpoint[1].desc.bRefresh; - } - } - if (d->srate < fmt->sratelo) - d->srate = fmt->sratelo; - if (d->srate > fmt->sratehi) - d->srate = fmt->sratehi; - dprintk((KERN_DEBUG "usbaudio: set_format_out: usb_set_interface %u %u\n", - u->interface, fmt->altsetting)); - if (usb_set_interface(dev, u->interface, fmt->altsetting) < 0) { - printk(KERN_WARNING "usbaudio: usb_set_interface failed, device %d interface %d altsetting %d\n", - dev->devnum, u->interface, fmt->altsetting); - return -1; - } - if (fmt->sratelo == fmt->sratehi) - return 0; - ep = usb_pipeendpoint(u->datapipe) | (u->datapipe & USB_DIR_IN); - /* if endpoint has pitch control, enable it */ - if (fmt->attributes & 0x02) { - data[0] = 1; - if ((ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, - PITCH_CONTROL << 8, ep, data, 1, 1000)) < 0) { - printk(KERN_ERR "usbaudio: failure (error %d) to set output pitch control device %d interface %u endpoint 0x%x to %u\n", - ret, dev->devnum, u->interface, ep, d->srate); - return -1; - } - } - /* if endpoint has sampling rate control, set it */ - if (fmt->attributes & 0x01) { - data[0] = d->srate; - data[1] = d->srate >> 8; - data[2] = d->srate >> 16; - if ((ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, - SAMPLING_FREQ_CONTROL << 8, ep, data, 3, 1000)) < 0) { - printk(KERN_ERR "usbaudio: failure (error %d) to set output sampling frequency device %d interface %u endpoint 0x%x to %u\n", - ret, dev->devnum, u->interface, ep, d->srate); - return -1; - } - if ((ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_CUR, USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_IN, - SAMPLING_FREQ_CONTROL << 8, ep, data, 3, 1000)) < 0) { - printk(KERN_ERR "usbaudio: failure (error %d) to get output sampling frequency device %d interface %u endpoint 0x%x\n", - ret, dev->devnum, u->interface, ep); - return -1; - } - dprintk((KERN_DEBUG "usbaudio: set_format_out: device %d interface %d altsetting %d srate req: %u real %u\n", - dev->devnum, u->interface, fmt->altsetting, d->srate, data[0] | (data[1] << 8) | (data[2] << 16))); - d->srate = data[0] | (data[1] << 8) | (data[2] << 16); - } - dprintk((KERN_DEBUG "usbaudio: set_format_out: USB format 0x%x, DMA format 0x%x srate %u\n", u->format, d->format, d->srate)); - return 0; -} - -static int set_format(struct usb_audiodev *s, unsigned int fmode, unsigned int fmt, unsigned int srate) -{ - int ret1 = 0, ret2 = 0; - - if (!(fmode & (FMODE_READ|FMODE_WRITE))) - return -EINVAL; - if (fmode & FMODE_READ) { - usbin_stop(s); - s->usbin.dma.ready = 0; - if (fmt == AFMT_QUERY) - fmt = s->usbin.dma.format; - else - s->usbin.dma.format = fmt; - if (!srate) - srate = s->usbin.dma.srate; - else - s->usbin.dma.srate = srate; - } - if (fmode & FMODE_WRITE) { - usbout_stop(s); - s->usbout.dma.ready = 0; - if (fmt == AFMT_QUERY) - fmt = s->usbout.dma.format; - else - s->usbout.dma.format = fmt; - if (!srate) - srate = s->usbout.dma.srate; - else - s->usbout.dma.srate = srate; - } - if (fmode & FMODE_READ) - ret1 = set_format_in(s); - if (fmode & FMODE_WRITE) - ret2 = set_format_out(s); - return ret1 ? ret1 : ret2; -} - -/* --------------------------------------------------------------------- */ - -static int wrmixer(struct usb_mixerdev *ms, unsigned mixch, unsigned value) -{ - struct usb_device *dev = ms->state->usbdev; - unsigned char data[2]; - struct mixerchannel *ch; - int v1, v2, v3; - - if (mixch >= ms->numch) - return -1; - ch = &ms->ch[mixch]; - v3 = ch->maxval - ch->minval; - v1 = value & 0xff; - v2 = (value >> 8) & 0xff; - if (v1 > 100) - v1 = 100; - if (v2 > 100) - v2 = 100; - if (!(ch->flags & (MIXFLG_STEREOIN | MIXFLG_STEREOOUT))) - v2 = v1; - ch->value = v1 | (v2 << 8); - v1 = (v1 * v3) / 100 + ch->minval; - v2 = (v2 * v3) / 100 + ch->minval; - switch (ch->selector) { - case 0: /* mixer unit request */ - data[0] = v1; - data[1] = v1 >> 8; - if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, - (ch->chnum << 8) | 1, ms->iface | (ch->unitid << 8), data, 2, 1000) < 0) - goto err; - if (!(ch->flags & (MIXFLG_STEREOIN | MIXFLG_STEREOOUT))) - return 0; - data[0] = v2; - data[1] = v2 >> 8; - if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, - ((ch->chnum + !!(ch->flags & MIXFLG_STEREOIN)) << 8) | (1 + !!(ch->flags & MIXFLG_STEREOOUT)), - ms->iface | (ch->unitid << 8), data, 2, 1000) < 0) - goto err; - return 0; - - /* various feature unit controls */ - case VOLUME_CONTROL: - data[0] = v1; - data[1] = v1 >> 8; - if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, - (ch->selector << 8) | ch->chnum, ms->iface | (ch->unitid << 8), data, 2, 1000) < 0) - goto err; - if (!(ch->flags & (MIXFLG_STEREOIN | MIXFLG_STEREOOUT))) - return 0; - data[0] = v2; - data[1] = v2 >> 8; - if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, - (ch->selector << 8) | (ch->chnum + 1), ms->iface | (ch->unitid << 8), data, 2, 1000) < 0) - goto err; - return 0; - - case BASS_CONTROL: - case MID_CONTROL: - case TREBLE_CONTROL: - data[0] = v1 >> 8; - if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, - (ch->selector << 8) | ch->chnum, ms->iface | (ch->unitid << 8), data, 1, 1000) < 0) - goto err; - if (!(ch->flags & (MIXFLG_STEREOIN | MIXFLG_STEREOOUT))) - return 0; - data[0] = v2 >> 8; - if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, - (ch->selector << 8) | (ch->chnum + 1), ms->iface | (ch->unitid << 8), data, 1, 1000) < 0) - goto err; - return 0; - - default: - return -1; - } - return 0; - - err: - printk(KERN_ERR "usbaudio: mixer request device %u if %u unit %u ch %u selector %u failed\n", - dev->devnum, ms->iface, ch->unitid, ch->chnum, ch->selector); - return -1; -} - -static int get_rec_src(struct usb_mixerdev *ms) -{ - struct usb_device *dev = ms->state->usbdev; - unsigned int mask = 0, retmask = 0; - unsigned int i, j; - unsigned char buf; - int err = 0; - - for (i = 0; i < ms->numch; i++) { - if (!ms->ch[i].slctunitid || (mask & (1 << i))) - continue; - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - 0, ms->iface | (ms->ch[i].slctunitid << 8), &buf, 1, 1000) < 0) { - err = -EIO; - printk(KERN_ERR "usbaudio: selector read request device %u if %u unit %u failed\n", - dev->devnum, ms->iface, ms->ch[i].slctunitid & 0xff); - continue; - } - for (j = i; j < ms->numch; j++) { - if ((ms->ch[i].slctunitid ^ ms->ch[j].slctunitid) & 0xff) - continue; - mask |= 1 << j; - if (buf == (ms->ch[j].slctunitid >> 8)) - retmask |= 1 << ms->ch[j].osschannel; - } - } - if (err) - return -EIO; - return retmask; -} - -static int set_rec_src(struct usb_mixerdev *ms, int srcmask) -{ - struct usb_device *dev = ms->state->usbdev; - unsigned int mask = 0, smask, bmask; - unsigned int i, j; - unsigned char buf; - int err = 0; - - for (i = 0; i < ms->numch; i++) { - if (!ms->ch[i].slctunitid || (mask & (1 << i))) - continue; - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - 0, ms->iface | (ms->ch[i].slctunitid << 8), &buf, 1, 1000) < 0) { - err = -EIO; - printk(KERN_ERR "usbaudio: selector read request device %u if %u unit %u failed\n", - dev->devnum, ms->iface, ms->ch[i].slctunitid & 0xff); - continue; - } - /* first generate smask */ - smask = bmask = 0; - for (j = i; j < ms->numch; j++) { - if ((ms->ch[i].slctunitid ^ ms->ch[j].slctunitid) & 0xff) - continue; - smask |= 1 << ms->ch[j].osschannel; - if (buf == (ms->ch[j].slctunitid >> 8)) - bmask |= 1 << ms->ch[j].osschannel; - mask |= 1 << j; - } - /* check for multiple set sources */ - j = hweight32(srcmask & smask); - if (j == 0) - continue; - if (j > 1) - srcmask &= ~bmask; - for (j = i; j < ms->numch; j++) { - if ((ms->ch[i].slctunitid ^ ms->ch[j].slctunitid) & 0xff) - continue; - if (!(srcmask & (1 << ms->ch[j].osschannel))) - continue; - buf = ms->ch[j].slctunitid >> 8; - if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, - 0, ms->iface | (ms->ch[j].slctunitid << 8), &buf, 1, 1000) < 0) { - err = -EIO; - printk(KERN_ERR "usbaudio: selector write request device %u if %u unit %u failed\n", - dev->devnum, ms->iface, ms->ch[j].slctunitid & 0xff); - continue; - } - } - } - return err ? -EIO : 0; -} - -/* --------------------------------------------------------------------- */ - -/* - * should be called with open_sem hold, so that no new processes - * look at the audio device to be destroyed - */ - -static void release(struct usb_audio_state *s) -{ - struct usb_audiodev *as; - struct usb_mixerdev *ms; - - s->count--; - if (s->count) { - up(&open_sem); - return; - } - up(&open_sem); - wake_up(&open_wait); - while (!list_empty(&s->audiolist)) { - as = list_entry(s->audiolist.next, struct usb_audiodev, list); - list_del(&as->list); - usbin_release(as); - usbout_release(as); - dmabuf_release(&as->usbin.dma); - dmabuf_release(&as->usbout.dma); - usb_free_urb(as->usbin.durb[0].urb); - usb_free_urb(as->usbin.durb[1].urb); - usb_free_urb(as->usbin.surb[0].urb); - usb_free_urb(as->usbin.surb[1].urb); - usb_free_urb(as->usbout.durb[0].urb); - usb_free_urb(as->usbout.durb[1].urb); - usb_free_urb(as->usbout.surb[0].urb); - usb_free_urb(as->usbout.surb[1].urb); - kfree(as); - } - while (!list_empty(&s->mixerlist)) { - ms = list_entry(s->mixerlist.next, struct usb_mixerdev, list); - list_del(&ms->list); - kfree(ms); - } - kfree(s); -} - -static inline int prog_dmabuf_in(struct usb_audiodev *as) -{ - usbin_stop(as); - return dmabuf_init(&as->usbin.dma); -} - -static inline int prog_dmabuf_out(struct usb_audiodev *as) -{ - usbout_stop(as); - return dmabuf_init(&as->usbout.dma); -} - -/* --------------------------------------------------------------------- */ - -static int usb_audio_open_mixdev(struct inode *inode, struct file *file) -{ - unsigned int minor = iminor(inode); - struct usb_mixerdev *ms; - struct usb_audio_state *s; - - down(&open_sem); - list_for_each_entry(s, &audiodevs, audiodev) { - list_for_each_entry(ms, &s->mixerlist, list) { - if (ms->dev_mixer == minor) - goto mixer_found; - } - } - up(&open_sem); - return -ENODEV; - - mixer_found: - if (!s->usbdev) { - up(&open_sem); - return -EIO; - } - file->private_data = ms; - s->count++; - - up(&open_sem); - return nonseekable_open(inode, file); -} - -static int usb_audio_release_mixdev(struct inode *inode, struct file *file) -{ - struct usb_mixerdev *ms = (struct usb_mixerdev *)file->private_data; - struct usb_audio_state *s; - - lock_kernel(); - s = ms->state; - down(&open_sem); - release(s); - unlock_kernel(); - return 0; -} - -static int usb_audio_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) -{ - struct usb_mixerdev *ms = (struct usb_mixerdev *)file->private_data; - int i, j, val; - int __user *user_arg = (int __user *)arg; - - if (!ms->state->usbdev) - return -ENODEV; - - if (cmd == SOUND_MIXER_INFO) { - mixer_info info; - - memset(&info, 0, sizeof(info)); - strncpy(info.id, "USB_AUDIO", sizeof(info.id)); - strncpy(info.name, "USB Audio Class Driver", sizeof(info.name)); - info.modify_counter = ms->modcnt; - if (copy_to_user((void __user *)arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } - if (cmd == SOUND_OLD_MIXER_INFO) { - _old_mixer_info info; - - memset(&info, 0, sizeof(info)); - strncpy(info.id, "USB_AUDIO", sizeof(info.id)); - strncpy(info.name, "USB Audio Class Driver", sizeof(info.name)); - if (copy_to_user((void __user *)arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } - if (cmd == OSS_GETVERSION) - return put_user(SOUND_VERSION, user_arg); - if (_IOC_TYPE(cmd) != 'M' || _IOC_SIZE(cmd) != sizeof(int)) - return -EINVAL; - if (_IOC_DIR(cmd) == _IOC_READ) { - switch (_IOC_NR(cmd)) { - case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */ - val = get_rec_src(ms); - if (val < 0) - return val; - return put_user(val, user_arg); - - case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */ - for (val = i = 0; i < ms->numch; i++) - val |= 1 << ms->ch[i].osschannel; - return put_user(val, user_arg); - - case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */ - for (val = i = 0; i < ms->numch; i++) - if (ms->ch[i].slctunitid) - val |= 1 << ms->ch[i].osschannel; - return put_user(val, user_arg); - - case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */ - for (val = i = 0; i < ms->numch; i++) - if (ms->ch[i].flags & (MIXFLG_STEREOIN | MIXFLG_STEREOOUT)) - val |= 1 << ms->ch[i].osschannel; - return put_user(val, user_arg); - - case SOUND_MIXER_CAPS: - return put_user(SOUND_CAP_EXCL_INPUT, user_arg); - - default: - i = _IOC_NR(cmd); - if (i >= SOUND_MIXER_NRDEVICES) - return -EINVAL; - for (j = 0; j < ms->numch; j++) { - if (ms->ch[j].osschannel == i) { - return put_user(ms->ch[j].value, user_arg); - } - } - return -EINVAL; - } - } - if (_IOC_DIR(cmd) != (_IOC_READ|_IOC_WRITE)) - return -EINVAL; - ms->modcnt++; - switch (_IOC_NR(cmd)) { - case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */ - if (get_user(val, user_arg)) - return -EFAULT; - return set_rec_src(ms, val); - - default: - i = _IOC_NR(cmd); - if (i >= SOUND_MIXER_NRDEVICES) - return -EINVAL; - for (j = 0; j < ms->numch && ms->ch[j].osschannel != i; j++); - if (j >= ms->numch) - return -EINVAL; - if (get_user(val, user_arg)) - return -EFAULT; - if (wrmixer(ms, j, val)) - return -EIO; - return put_user(ms->ch[j].value, user_arg); - } -} - -static /*const*/ struct file_operations usb_mixer_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .ioctl = usb_audio_ioctl_mixdev, - .open = usb_audio_open_mixdev, - .release = usb_audio_release_mixdev, -}; - -/* --------------------------------------------------------------------- */ - -static int drain_out(struct usb_audiodev *as, int nonblock) -{ - DECLARE_WAITQUEUE(wait, current); - unsigned long flags; - int count, tmo; - - if (as->usbout.dma.mapped || !as->usbout.dma.ready) - return 0; - usbout_start(as); - add_wait_queue(&as->usbout.dma.wait, &wait); - for (;;) { - __set_current_state(TASK_INTERRUPTIBLE); - spin_lock_irqsave(&as->lock, flags); - count = as->usbout.dma.count; - spin_unlock_irqrestore(&as->lock, flags); - if (count <= 0) - break; - if (signal_pending(current)) - break; - if (nonblock) { - remove_wait_queue(&as->usbout.dma.wait, &wait); - set_current_state(TASK_RUNNING); - return -EBUSY; - } - tmo = 3 * HZ * count / as->usbout.dma.srate; - tmo >>= AFMT_BYTESSHIFT(as->usbout.dma.format); - if (!schedule_timeout(tmo + 1)) { - printk(KERN_DEBUG "usbaudio: dma timed out??\n"); - break; - } - } - remove_wait_queue(&as->usbout.dma.wait, &wait); - set_current_state(TASK_RUNNING); - if (signal_pending(current)) - return -ERESTARTSYS; - return 0; -} - -/* --------------------------------------------------------------------- */ - -static ssize_t usb_audio_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) -{ - struct usb_audiodev *as = (struct usb_audiodev *)file->private_data; - DECLARE_WAITQUEUE(wait, current); - ssize_t ret = 0; - unsigned long flags; - unsigned int ptr; - int cnt, err; - - if (as->usbin.dma.mapped) - return -ENXIO; - if (!as->usbin.dma.ready && (ret = prog_dmabuf_in(as))) - return ret; - if (!access_ok(VERIFY_WRITE, buffer, count)) - return -EFAULT; - add_wait_queue(&as->usbin.dma.wait, &wait); - while (count > 0) { - spin_lock_irqsave(&as->lock, flags); - ptr = as->usbin.dma.rdptr; - cnt = as->usbin.dma.count; - /* set task state early to avoid wakeup races */ - if (cnt <= 0) - __set_current_state(TASK_INTERRUPTIBLE); - spin_unlock_irqrestore(&as->lock, flags); - if (cnt > count) - cnt = count; - if (cnt <= 0) { - if (usbin_start(as)) { - if (!ret) - ret = -ENODEV; - break; - } - if (file->f_flags & O_NONBLOCK) { - if (!ret) - ret = -EAGAIN; - break; - } - schedule(); - if (signal_pending(current)) { - if (!ret) - ret = -ERESTARTSYS; - break; - } - continue; - } - if ((err = dmabuf_copyout_user(&as->usbin.dma, ptr, buffer, cnt))) { - if (!ret) - ret = err; - break; - } - ptr += cnt; - if (ptr >= as->usbin.dma.dmasize) - ptr -= as->usbin.dma.dmasize; - spin_lock_irqsave(&as->lock, flags); - as->usbin.dma.rdptr = ptr; - as->usbin.dma.count -= cnt; - spin_unlock_irqrestore(&as->lock, flags); - count -= cnt; - buffer += cnt; - ret += cnt; - } - __set_current_state(TASK_RUNNING); - remove_wait_queue(&as->usbin.dma.wait, &wait); - return ret; -} - -static ssize_t usb_audio_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) -{ - struct usb_audiodev *as = (struct usb_audiodev *)file->private_data; - DECLARE_WAITQUEUE(wait, current); - ssize_t ret = 0; - unsigned long flags; - unsigned int ptr; - unsigned int start_thr; - int cnt, err; - - if (as->usbout.dma.mapped) - return -ENXIO; - if (!as->usbout.dma.ready && (ret = prog_dmabuf_out(as))) - return ret; - if (!access_ok(VERIFY_READ, buffer, count)) - return -EFAULT; - start_thr = (as->usbout.dma.srate << AFMT_BYTESSHIFT(as->usbout.dma.format)) / (1000 / (3 * DESCFRAMES)); - add_wait_queue(&as->usbout.dma.wait, &wait); - while (count > 0) { -#if 0 - printk(KERN_DEBUG "usb_audio_write: count %u dma: count %u rdptr %u wrptr %u dmasize %u fragsize %u flags 0x%02x taskst 0x%lx\n", - count, as->usbout.dma.count, as->usbout.dma.rdptr, as->usbout.dma.wrptr, as->usbout.dma.dmasize, as->usbout.dma.fragsize, - as->usbout.flags, current->state); -#endif - spin_lock_irqsave(&as->lock, flags); - if (as->usbout.dma.count < 0) { - as->usbout.dma.count = 0; - as->usbout.dma.rdptr = as->usbout.dma.wrptr; - } - ptr = as->usbout.dma.wrptr; - cnt = as->usbout.dma.dmasize - as->usbout.dma.count; - /* set task state early to avoid wakeup races */ - if (cnt <= 0) - __set_current_state(TASK_INTERRUPTIBLE); - spin_unlock_irqrestore(&as->lock, flags); - if (cnt > count) - cnt = count; - if (cnt <= 0) { - if (usbout_start(as)) { - if (!ret) - ret = -ENODEV; - break; - } - if (file->f_flags & O_NONBLOCK) { - if (!ret) - ret = -EAGAIN; - break; - } - schedule(); - if (signal_pending(current)) { - if (!ret) - ret = -ERESTARTSYS; - break; - } - continue; - } - if ((err = dmabuf_copyin_user(&as->usbout.dma, ptr, buffer, cnt))) { - if (!ret) - ret = err; - break; - } - ptr += cnt; - if (ptr >= as->usbout.dma.dmasize) - ptr -= as->usbout.dma.dmasize; - spin_lock_irqsave(&as->lock, flags); - as->usbout.dma.wrptr = ptr; - as->usbout.dma.count += cnt; - spin_unlock_irqrestore(&as->lock, flags); - count -= cnt; - buffer += cnt; - ret += cnt; - if (as->usbout.dma.count >= start_thr && usbout_start(as)) { - if (!ret) - ret = -ENODEV; - break; - } - } - __set_current_state(TASK_RUNNING); - remove_wait_queue(&as->usbout.dma.wait, &wait); - return ret; -} - -/* Called without the kernel lock - fine */ -static unsigned int usb_audio_poll(struct file *file, struct poll_table_struct *wait) -{ - struct usb_audiodev *as = (struct usb_audiodev *)file->private_data; - unsigned long flags; - unsigned int mask = 0; - - if (file->f_mode & FMODE_WRITE) { - if (!as->usbout.dma.ready) - prog_dmabuf_out(as); - poll_wait(file, &as->usbout.dma.wait, wait); - } - if (file->f_mode & FMODE_READ) { - if (!as->usbin.dma.ready) - prog_dmabuf_in(as); - poll_wait(file, &as->usbin.dma.wait, wait); - } - spin_lock_irqsave(&as->lock, flags); - if (file->f_mode & FMODE_READ) { - if (as->usbin.dma.count >= (signed)as->usbin.dma.fragsize) - mask |= POLLIN | POLLRDNORM; - } - if (file->f_mode & FMODE_WRITE) { - if (as->usbout.dma.mapped) { - if (as->usbout.dma.count >= (signed)as->usbout.dma.fragsize) - mask |= POLLOUT | POLLWRNORM; - } else { - if ((signed)as->usbout.dma.dmasize >= as->usbout.dma.count + (signed)as->usbout.dma.fragsize) - mask |= POLLOUT | POLLWRNORM; - } - } - spin_unlock_irqrestore(&as->lock, flags); - return mask; -} - -static int usb_audio_mmap(struct file *file, struct vm_area_struct *vma) -{ - struct usb_audiodev *as = (struct usb_audiodev *)file->private_data; - struct dmabuf *db; - int ret = -EINVAL; - - lock_kernel(); - if (vma->vm_flags & VM_WRITE) { - if ((ret = prog_dmabuf_out(as)) != 0) - goto out; - db = &as->usbout.dma; - } else if (vma->vm_flags & VM_READ) { - if ((ret = prog_dmabuf_in(as)) != 0) - goto out; - db = &as->usbin.dma; - } else - goto out; - - ret = -EINVAL; - if (vma->vm_pgoff != 0) - goto out; - - ret = dmabuf_mmap(vma, db, vma->vm_start, vma->vm_end - vma->vm_start, vma->vm_page_prot); -out: - unlock_kernel(); - return ret; -} - -static int usb_audio_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) -{ - struct usb_audiodev *as = (struct usb_audiodev *)file->private_data; - struct usb_audio_state *s = as->state; - int __user *user_arg = (int __user *)arg; - unsigned long flags; - audio_buf_info abinfo; - count_info cinfo; - int val = 0; - int val2, mapped, ret; - - if (!s->usbdev) - return -EIO; - mapped = ((file->f_mode & FMODE_WRITE) && as->usbout.dma.mapped) || - ((file->f_mode & FMODE_READ) && as->usbin.dma.mapped); -#if 0 - if (arg) - get_user(val, (int *)arg); - printk(KERN_DEBUG "usbaudio: usb_audio_ioctl cmd=%x arg=%lx *arg=%d\n", cmd, arg, val) -#endif - switch (cmd) { - case OSS_GETVERSION: - return put_user(SOUND_VERSION, user_arg); - - case SNDCTL_DSP_SYNC: - if (file->f_mode & FMODE_WRITE) - return drain_out(as, 0/*file->f_flags & O_NONBLOCK*/); - return 0; - - case SNDCTL_DSP_SETDUPLEX: - return 0; - - case SNDCTL_DSP_GETCAPS: - return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | - DSP_CAP_MMAP | DSP_CAP_BATCH, user_arg); - - case SNDCTL_DSP_RESET: - if (file->f_mode & FMODE_WRITE) { - usbout_stop(as); - as->usbout.dma.rdptr = as->usbout.dma.wrptr = as->usbout.dma.count = as->usbout.dma.total_bytes = 0; - } - if (file->f_mode & FMODE_READ) { - usbin_stop(as); - as->usbin.dma.rdptr = as->usbin.dma.wrptr = as->usbin.dma.count = as->usbin.dma.total_bytes = 0; - } - return 0; - - case SNDCTL_DSP_SPEED: - if (get_user(val, user_arg)) - return -EFAULT; - if (val >= 0) { - if (val < 4000) - val = 4000; - if (val > 100000) - val = 100000; - if (set_format(as, file->f_mode, AFMT_QUERY, val)) - return -EIO; - } - return put_user((file->f_mode & FMODE_READ) ? - as->usbin.dma.srate : as->usbout.dma.srate, - user_arg); - - case SNDCTL_DSP_STEREO: - if (get_user(val, user_arg)) - return -EFAULT; - val2 = (file->f_mode & FMODE_READ) ? as->usbin.dma.format : as->usbout.dma.format; - if (val) - val2 |= AFMT_STEREO; - else - val2 &= ~AFMT_STEREO; - if (set_format(as, file->f_mode, val2, 0)) - return -EIO; - return 0; - - case SNDCTL_DSP_CHANNELS: - if (get_user(val, user_arg)) - return -EFAULT; - if (val != 0) { - val2 = (file->f_mode & FMODE_READ) ? as->usbin.dma.format : as->usbout.dma.format; - if (val == 1) - val2 &= ~AFMT_STEREO; - else - val2 |= AFMT_STEREO; - if (set_format(as, file->f_mode, val2, 0)) - return -EIO; - } - val2 = (file->f_mode & FMODE_READ) ? as->usbin.dma.format : as->usbout.dma.format; - return put_user(AFMT_ISSTEREO(val2) ? 2 : 1, user_arg); - - case SNDCTL_DSP_GETFMTS: /* Returns a mask */ - return put_user(AFMT_U8 | AFMT_U16_LE | AFMT_U16_BE | - AFMT_S8 | AFMT_S16_LE | AFMT_S16_BE, user_arg); - - case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/ - if (get_user(val, user_arg)) - return -EFAULT; - if (val != AFMT_QUERY) { - if (hweight32(val) != 1) - return -EINVAL; - if (!(val & (AFMT_U8 | AFMT_U16_LE | AFMT_U16_BE | - AFMT_S8 | AFMT_S16_LE | AFMT_S16_BE))) - return -EINVAL; - val2 = (file->f_mode & FMODE_READ) ? as->usbin.dma.format : as->usbout.dma.format; - val |= val2 & AFMT_STEREO; - if (set_format(as, file->f_mode, val, 0)) - return -EIO; - } - val2 = (file->f_mode & FMODE_READ) ? as->usbin.dma.format : as->usbout.dma.format; - return put_user(val2 & ~AFMT_STEREO, user_arg); - - case SNDCTL_DSP_POST: - return 0; - - case SNDCTL_DSP_GETTRIGGER: - val = 0; - if (file->f_mode & FMODE_READ && as->usbin.flags & FLG_RUNNING) - val |= PCM_ENABLE_INPUT; - if (file->f_mode & FMODE_WRITE && as->usbout.flags & FLG_RUNNING) - val |= PCM_ENABLE_OUTPUT; - return put_user(val, user_arg); - - case SNDCTL_DSP_SETTRIGGER: - if (get_user(val, user_arg)) - return -EFAULT; - if (file->f_mode & FMODE_READ) { - if (val & PCM_ENABLE_INPUT) { - if (!as->usbin.dma.ready && (ret = prog_dmabuf_in(as))) - return ret; - if (usbin_start(as)) - return -ENODEV; - } else - usbin_stop(as); - } - if (file->f_mode & FMODE_WRITE) { - if (val & PCM_ENABLE_OUTPUT) { - if (!as->usbout.dma.ready && (ret = prog_dmabuf_out(as))) - return ret; - if (usbout_start(as)) - return -ENODEV; - } else - usbout_stop(as); - } - return 0; - - case SNDCTL_DSP_GETOSPACE: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - if (!(as->usbout.flags & FLG_RUNNING) && (val = prog_dmabuf_out(as)) != 0) - return val; - spin_lock_irqsave(&as->lock, flags); - abinfo.fragsize = as->usbout.dma.fragsize; - abinfo.bytes = as->usbout.dma.dmasize - as->usbout.dma.count; - abinfo.fragstotal = as->usbout.dma.numfrag; - abinfo.fragments = abinfo.bytes >> as->usbout.dma.fragshift; - spin_unlock_irqrestore(&as->lock, flags); - return copy_to_user((void __user *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETISPACE: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - if (!(as->usbin.flags & FLG_RUNNING) && (val = prog_dmabuf_in(as)) != 0) - return val; - spin_lock_irqsave(&as->lock, flags); - abinfo.fragsize = as->usbin.dma.fragsize; - abinfo.bytes = as->usbin.dma.count; - abinfo.fragstotal = as->usbin.dma.numfrag; - abinfo.fragments = abinfo.bytes >> as->usbin.dma.fragshift; - spin_unlock_irqrestore(&as->lock, flags); - return copy_to_user((void __user *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_NONBLOCK: - file->f_flags |= O_NONBLOCK; - return 0; - - case SNDCTL_DSP_GETODELAY: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - spin_lock_irqsave(&as->lock, flags); - val = as->usbout.dma.count; - spin_unlock_irqrestore(&as->lock, flags); - return put_user(val, user_arg); - - case SNDCTL_DSP_GETIPTR: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - spin_lock_irqsave(&as->lock, flags); - cinfo.bytes = as->usbin.dma.total_bytes; - cinfo.blocks = as->usbin.dma.count >> as->usbin.dma.fragshift; - cinfo.ptr = as->usbin.dma.wrptr; - if (as->usbin.dma.mapped) - as->usbin.dma.count &= as->usbin.dma.fragsize-1; - spin_unlock_irqrestore(&as->lock, flags); - if (copy_to_user((void __user *)arg, &cinfo, sizeof(cinfo))) - return -EFAULT; - return 0; - - case SNDCTL_DSP_GETOPTR: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - spin_lock_irqsave(&as->lock, flags); - cinfo.bytes = as->usbout.dma.total_bytes; - cinfo.blocks = as->usbout.dma.count >> as->usbout.dma.fragshift; - cinfo.ptr = as->usbout.dma.rdptr; - if (as->usbout.dma.mapped) - as->usbout.dma.count &= as->usbout.dma.fragsize-1; - spin_unlock_irqrestore(&as->lock, flags); - if (copy_to_user((void __user *)arg, &cinfo, sizeof(cinfo))) - return -EFAULT; - return 0; - - case SNDCTL_DSP_GETBLKSIZE: - if (file->f_mode & FMODE_WRITE) { - if ((val = prog_dmabuf_out(as))) - return val; - return put_user(as->usbout.dma.fragsize, user_arg); - } - if ((val = prog_dmabuf_in(as))) - return val; - return put_user(as->usbin.dma.fragsize, user_arg); - - case SNDCTL_DSP_SETFRAGMENT: - if (get_user(val, user_arg)) - return -EFAULT; - if (file->f_mode & FMODE_READ) { - as->usbin.dma.ossfragshift = val & 0xffff; - as->usbin.dma.ossmaxfrags = (val >> 16) & 0xffff; - if (as->usbin.dma.ossfragshift < 4) - as->usbin.dma.ossfragshift = 4; - if (as->usbin.dma.ossfragshift > 15) - as->usbin.dma.ossfragshift = 15; - if (as->usbin.dma.ossmaxfrags < 4) - as->usbin.dma.ossmaxfrags = 4; - } - if (file->f_mode & FMODE_WRITE) { - as->usbout.dma.ossfragshift = val & 0xffff; - as->usbout.dma.ossmaxfrags = (val >> 16) & 0xffff; - if (as->usbout.dma.ossfragshift < 4) - as->usbout.dma.ossfragshift = 4; - if (as->usbout.dma.ossfragshift > 15) - as->usbout.dma.ossfragshift = 15; - if (as->usbout.dma.ossmaxfrags < 4) - as->usbout.dma.ossmaxfrags = 4; - } - return 0; - - case SNDCTL_DSP_SUBDIVIDE: - if ((file->f_mode & FMODE_READ && as->usbin.dma.subdivision) || - (file->f_mode & FMODE_WRITE && as->usbout.dma.subdivision)) - return -EINVAL; - if (get_user(val, user_arg)) - return -EFAULT; - if (val != 1 && val != 2 && val != 4) - return -EINVAL; - if (file->f_mode & FMODE_READ) - as->usbin.dma.subdivision = val; - if (file->f_mode & FMODE_WRITE) - as->usbout.dma.subdivision = val; - return 0; - - case SOUND_PCM_READ_RATE: - return put_user((file->f_mode & FMODE_READ) ? - as->usbin.dma.srate : as->usbout.dma.srate, - user_arg); - - case SOUND_PCM_READ_CHANNELS: - val2 = (file->f_mode & FMODE_READ) ? as->usbin.dma.format : as->usbout.dma.format; - return put_user(AFMT_ISSTEREO(val2) ? 2 : 1, user_arg); - - case SOUND_PCM_READ_BITS: - val2 = (file->f_mode & FMODE_READ) ? as->usbin.dma.format : as->usbout.dma.format; - return put_user(AFMT_IS16BIT(val2) ? 16 : 8, user_arg); - - case SOUND_PCM_WRITE_FILTER: - case SNDCTL_DSP_SETSYNCRO: - case SOUND_PCM_READ_FILTER: - return -EINVAL; - } - dprintk((KERN_DEBUG "usbaudio: usb_audio_ioctl - no command found\n")); - return -ENOIOCTLCMD; -} - -static int usb_audio_open(struct inode *inode, struct file *file) -{ - unsigned int minor = iminor(inode); - DECLARE_WAITQUEUE(wait, current); - struct usb_audiodev *as; - struct usb_audio_state *s; - - for (;;) { - down(&open_sem); - list_for_each_entry(s, &audiodevs, audiodev) { - list_for_each_entry(as, &s->audiolist, list) { - if (!((as->dev_audio ^ minor) & ~0xf)) - goto device_found; - } - } - up(&open_sem); - return -ENODEV; - - device_found: - if (!s->usbdev) { - up(&open_sem); - return -EIO; - } - /* wait for device to become free */ - if (!(as->open_mode & file->f_mode)) - break; - if (file->f_flags & O_NONBLOCK) { - up(&open_sem); - return -EBUSY; - } - __set_current_state(TASK_INTERRUPTIBLE); - add_wait_queue(&open_wait, &wait); - up(&open_sem); - schedule(); - __set_current_state(TASK_RUNNING); - remove_wait_queue(&open_wait, &wait); - if (signal_pending(current)) - return -ERESTARTSYS; - } - if (file->f_mode & FMODE_READ) - as->usbin.dma.ossfragshift = as->usbin.dma.ossmaxfrags = as->usbin.dma.subdivision = 0; - if (file->f_mode & FMODE_WRITE) - as->usbout.dma.ossfragshift = as->usbout.dma.ossmaxfrags = as->usbout.dma.subdivision = 0; - if (set_format(as, file->f_mode, ((minor & 0xf) == SND_DEV_DSP16) ? AFMT_S16_LE : AFMT_U8 /* AFMT_ULAW */, 8000)) { - up(&open_sem); - return -EIO; - } - file->private_data = as; - as->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); - s->count++; - up(&open_sem); - return nonseekable_open(inode, file); -} - -static int usb_audio_release(struct inode *inode, struct file *file) -{ - struct usb_audiodev *as = (struct usb_audiodev *)file->private_data; - struct usb_audio_state *s; - struct usb_device *dev; - - lock_kernel(); - s = as->state; - dev = s->usbdev; - if (file->f_mode & FMODE_WRITE) - drain_out(as, file->f_flags & O_NONBLOCK); - down(&open_sem); - if (file->f_mode & FMODE_WRITE) { - usbout_stop(as); - if (dev && as->usbout.interface >= 0) - usb_set_interface(dev, as->usbout.interface, 0); - dmabuf_release(&as->usbout.dma); - usbout_release(as); - } - if (file->f_mode & FMODE_READ) { - usbin_stop(as); - if (dev && as->usbin.interface >= 0) - usb_set_interface(dev, as->usbin.interface, 0); - dmabuf_release(&as->usbin.dma); - usbin_release(as); - } - as->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE); - release(s); - wake_up(&open_wait); - unlock_kernel(); - return 0; -} - -static /*const*/ struct file_operations usb_audio_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .read = usb_audio_read, - .write = usb_audio_write, - .poll = usb_audio_poll, - .ioctl = usb_audio_ioctl, - .mmap = usb_audio_mmap, - .open = usb_audio_open, - .release = usb_audio_release, -}; - -/* --------------------------------------------------------------------- */ - -static int usb_audio_probe(struct usb_interface *iface, - const struct usb_device_id *id); -static void usb_audio_disconnect(struct usb_interface *iface); - -static struct usb_device_id usb_audio_ids [] = { - { .match_flags = (USB_DEVICE_ID_MATCH_INT_CLASS | USB_DEVICE_ID_MATCH_INT_SUBCLASS), - .bInterfaceClass = USB_CLASS_AUDIO, .bInterfaceSubClass = 1}, - { } /* Terminating entry */ -}; - -MODULE_DEVICE_TABLE (usb, usb_audio_ids); - -static struct usb_driver usb_audio_driver = { - .name = "audio", - .probe = usb_audio_probe, - .disconnect = usb_audio_disconnect, - .id_table = usb_audio_ids, -}; - -static void *find_descriptor(void *descstart, unsigned int desclen, void *after, - u8 dtype, int iface, int altsetting) -{ - u8 *p, *end, *next; - int ifc = -1, as = -1; - - p = descstart; - end = p + desclen; - for (; p < end;) { - if (p[0] < 2) - return NULL; - next = p + p[0]; - if (next > end) - return NULL; - if (p[1] == USB_DT_INTERFACE) { - /* minimum length of interface descriptor */ - if (p[0] < 9) - return NULL; - ifc = p[2]; - as = p[3]; - } - if (p[1] == dtype && (!after || (void *)p > after) && - (iface == -1 || iface == ifc) && (altsetting == -1 || altsetting == as)) { - return p; - } - p = next; - } - return NULL; -} - -static void *find_csinterface_descriptor(void *descstart, unsigned int desclen, void *after, u8 dsubtype, int iface, int altsetting) -{ - unsigned char *p; - - p = find_descriptor(descstart, desclen, after, USB_DT_CS_INTERFACE, iface, altsetting); - while (p) { - if (p[0] >= 3 && p[2] == dsubtype) - return p; - p = find_descriptor(descstart, desclen, p, USB_DT_CS_INTERFACE, iface, altsetting); - } - return NULL; -} - -static void *find_audiocontrol_unit(void *descstart, unsigned int desclen, void *after, u8 unit, int iface) -{ - unsigned char *p; - - p = find_descriptor(descstart, desclen, after, USB_DT_CS_INTERFACE, iface, -1); - while (p) { - if (p[0] >= 4 && p[2] >= INPUT_TERMINAL && p[2] <= EXTENSION_UNIT && p[3] == unit) - return p; - p = find_descriptor(descstart, desclen, p, USB_DT_CS_INTERFACE, iface, -1); - } - return NULL; -} - -static void usb_audio_parsestreaming(struct usb_audio_state *s, unsigned char *buffer, unsigned int buflen, int asifin, int asifout) -{ - struct usb_device *dev = s->usbdev; - struct usb_audiodev *as; - struct usb_host_interface *alts; - struct usb_interface *iface; - struct audioformat *fp; - unsigned char *fmt, *csep; - unsigned int i, j, k, format, idx; - - if (!(as = kmalloc(sizeof(struct usb_audiodev), GFP_KERNEL))) - return; - memset(as, 0, sizeof(struct usb_audiodev)); - init_waitqueue_head(&as->usbin.dma.wait); - init_waitqueue_head(&as->usbout.dma.wait); - spin_lock_init(&as->lock); - as->usbin.durb[0].urb = usb_alloc_urb (DESCFRAMES, GFP_KERNEL); - as->usbin.durb[1].urb = usb_alloc_urb (DESCFRAMES, GFP_KERNEL); - as->usbin.surb[0].urb = usb_alloc_urb (SYNCFRAMES, GFP_KERNEL); - as->usbin.surb[1].urb = usb_alloc_urb (SYNCFRAMES, GFP_KERNEL); - as->usbout.durb[0].urb = usb_alloc_urb (DESCFRAMES, GFP_KERNEL); - as->usbout.durb[1].urb = usb_alloc_urb (DESCFRAMES, GFP_KERNEL); - as->usbout.surb[0].urb = usb_alloc_urb (SYNCFRAMES, GFP_KERNEL); - as->usbout.surb[1].urb = usb_alloc_urb (SYNCFRAMES, GFP_KERNEL); - if ((!as->usbin.durb[0].urb) || - (!as->usbin.durb[1].urb) || - (!as->usbin.surb[0].urb) || - (!as->usbin.surb[1].urb) || - (!as->usbout.durb[0].urb) || - (!as->usbout.durb[1].urb) || - (!as->usbout.surb[0].urb) || - (!as->usbout.surb[1].urb)) { - usb_free_urb(as->usbin.durb[0].urb); - usb_free_urb(as->usbin.durb[1].urb); - usb_free_urb(as->usbin.surb[0].urb); - usb_free_urb(as->usbin.surb[1].urb); - usb_free_urb(as->usbout.durb[0].urb); - usb_free_urb(as->usbout.durb[1].urb); - usb_free_urb(as->usbout.surb[0].urb); - usb_free_urb(as->usbout.surb[1].urb); - kfree(as); - return; - } - as->state = s; - as->usbin.interface = asifin; - as->usbout.interface = asifout; - /* search for input formats */ - if (asifin >= 0) { - as->usbin.flags = FLG_CONNECTED; - iface = usb_ifnum_to_if(dev, asifin); - for (idx = 0; idx < iface->num_altsetting; idx++) { - alts = &iface->altsetting[idx]; - i = alts->desc.bAlternateSetting; - if (alts->desc.bInterfaceClass != USB_CLASS_AUDIO || alts->desc.bInterfaceSubClass != 2) - continue; - if (alts->desc.bNumEndpoints < 1) { - if (i != 0) { /* altsetting 0 has no endpoints (Section B.3.4.1) */ - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u does not have an endpoint\n", - dev->devnum, asifin, i); - } - continue; - } - if ((alts->endpoint[0].desc.bmAttributes & 0x03) != 0x01 || - !(alts->endpoint[0].desc.bEndpointAddress & 0x80)) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u first endpoint not isochronous in\n", - dev->devnum, asifin, i); - continue; - } - fmt = find_csinterface_descriptor(buffer, buflen, NULL, AS_GENERAL, asifin, i); - if (!fmt) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u FORMAT_TYPE descriptor not found\n", - dev->devnum, asifin, i); - continue; - } - if (fmt[0] < 7 || fmt[6] != 0 || (fmt[5] != 1 && fmt[5] != 2)) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u format not supported\n", - dev->devnum, asifin, i); - continue; - } - format = (fmt[5] == 2) ? (AFMT_U16_LE | AFMT_U8) : (AFMT_S16_LE | AFMT_S8); - fmt = find_csinterface_descriptor(buffer, buflen, NULL, FORMAT_TYPE, asifin, i); - if (!fmt) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u FORMAT_TYPE descriptor not found\n", - dev->devnum, asifin, i); - continue; - } - if (fmt[0] < 8+3*(fmt[7] ? fmt[7] : 2) || fmt[3] != 1) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u FORMAT_TYPE descriptor not supported\n", - dev->devnum, asifin, i); - continue; - } - if (fmt[4] < 1 || fmt[4] > 2 || fmt[5] < 1 || fmt[5] > 2) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u unsupported channels %u framesize %u\n", - dev->devnum, asifin, i, fmt[4], fmt[5]); - continue; - } - csep = find_descriptor(buffer, buflen, NULL, USB_DT_CS_ENDPOINT, asifin, i); - if (!csep || csep[0] < 7 || csep[2] != EP_GENERAL) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u no or invalid class specific endpoint descriptor\n", - dev->devnum, asifin, i); - continue; - } - if (as->numfmtin >= MAXFORMATS) - continue; - fp = &as->fmtin[as->numfmtin++]; - if (fmt[5] == 2) - format &= (AFMT_U16_LE | AFMT_S16_LE); - else - format &= (AFMT_U8 | AFMT_S8); - if (fmt[4] == 2) - format |= AFMT_STEREO; - fp->format = format; - fp->altsetting = i; - fp->sratelo = fp->sratehi = fmt[8] | (fmt[9] << 8) | (fmt[10] << 16); - printk(KERN_INFO "usbaudio: valid input sample rate %u\n", fp->sratelo); - for (j = fmt[7] ? (fmt[7]-1) : 1; j > 0; j--) { - k = fmt[8+3*j] | (fmt[9+3*j] << 8) | (fmt[10+3*j] << 16); - printk(KERN_INFO "usbaudio: valid input sample rate %u\n", k); - if (k > fp->sratehi) - fp->sratehi = k; - if (k < fp->sratelo) - fp->sratelo = k; - } - fp->attributes = csep[3]; - printk(KERN_INFO "usbaudio: device %u interface %u altsetting %u: format 0x%08x sratelo %u sratehi %u attributes 0x%02x\n", - dev->devnum, asifin, i, fp->format, fp->sratelo, fp->sratehi, fp->attributes); - } - } - /* search for output formats */ - if (asifout >= 0) { - as->usbout.flags = FLG_CONNECTED; - iface = usb_ifnum_to_if(dev, asifout); - for (idx = 0; idx < iface->num_altsetting; idx++) { - alts = &iface->altsetting[idx]; - i = alts->desc.bAlternateSetting; - if (alts->desc.bInterfaceClass != USB_CLASS_AUDIO || alts->desc.bInterfaceSubClass != 2) - continue; - if (alts->desc.bNumEndpoints < 1) { - /* altsetting 0 should never have iso EPs */ - if (i != 0) - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u does not have an endpoint\n", - dev->devnum, asifout, i); - continue; - } - if ((alts->endpoint[0].desc.bmAttributes & 0x03) != 0x01 || - (alts->endpoint[0].desc.bEndpointAddress & 0x80)) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u first endpoint not isochronous out\n", - dev->devnum, asifout, i); - continue; - } - /* See USB audio formats manual, section 2 */ - fmt = find_csinterface_descriptor(buffer, buflen, NULL, AS_GENERAL, asifout, i); - if (!fmt) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u FORMAT_TYPE descriptor not found\n", - dev->devnum, asifout, i); - continue; - } - if (fmt[0] < 7 || fmt[6] != 0 || (fmt[5] != 1 && fmt[5] != 2)) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u format not supported\n", - dev->devnum, asifout, i); - continue; - } - format = (fmt[5] == 2) ? (AFMT_U16_LE | AFMT_U8) : (AFMT_S16_LE | AFMT_S8); - /* Dallas DS4201 workaround */ - if (le16_to_cpu(dev->descriptor.idVendor) == 0x04fa && - le16_to_cpu(dev->descriptor.idProduct) == 0x4201) - format = (AFMT_S16_LE | AFMT_S8); - fmt = find_csinterface_descriptor(buffer, buflen, NULL, FORMAT_TYPE, asifout, i); - if (!fmt) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u FORMAT_TYPE descriptor not found\n", - dev->devnum, asifout, i); - continue; - } - if (fmt[0] < 8+3*(fmt[7] ? fmt[7] : 2) || fmt[3] != 1) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u FORMAT_TYPE descriptor not supported\n", - dev->devnum, asifout, i); - continue; - } - if (fmt[4] < 1 || fmt[4] > 2 || fmt[5] < 1 || fmt[5] > 2) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u unsupported channels %u framesize %u\n", - dev->devnum, asifout, i, fmt[4], fmt[5]); - continue; - } - csep = find_descriptor(buffer, buflen, NULL, USB_DT_CS_ENDPOINT, asifout, i); - if (!csep || csep[0] < 7 || csep[2] != EP_GENERAL) { - printk(KERN_ERR "usbaudio: device %u interface %u altsetting %u no or invalid class specific endpoint descriptor\n", - dev->devnum, asifout, i); - continue; - } - if (as->numfmtout >= MAXFORMATS) - continue; - fp = &as->fmtout[as->numfmtout++]; - if (fmt[5] == 2) - format &= (AFMT_U16_LE | AFMT_S16_LE); - else - format &= (AFMT_U8 | AFMT_S8); - if (fmt[4] == 2) - format |= AFMT_STEREO; - fp->format = format; - fp->altsetting = i; - fp->sratelo = fp->sratehi = fmt[8] | (fmt[9] << 8) | (fmt[10] << 16); - printk(KERN_INFO "usbaudio: valid output sample rate %u\n", fp->sratelo); - for (j = fmt[7] ? (fmt[7]-1) : 1; j > 0; j--) { - k = fmt[8+3*j] | (fmt[9+3*j] << 8) | (fmt[10+3*j] << 16); - printk(KERN_INFO "usbaudio: valid output sample rate %u\n", k); - if (k > fp->sratehi) - fp->sratehi = k; - if (k < fp->sratelo) - fp->sratelo = k; - } - fp->attributes = csep[3]; - printk(KERN_INFO "usbaudio: device %u interface %u altsetting %u: format 0x%08x sratelo %u sratehi %u attributes 0x%02x\n", - dev->devnum, asifout, i, fp->format, fp->sratelo, fp->sratehi, fp->attributes); - } - } - if (as->numfmtin == 0 && as->numfmtout == 0) { - usb_free_urb(as->usbin.durb[0].urb); - usb_free_urb(as->usbin.durb[1].urb); - usb_free_urb(as->usbin.surb[0].urb); - usb_free_urb(as->usbin.surb[1].urb); - usb_free_urb(as->usbout.durb[0].urb); - usb_free_urb(as->usbout.durb[1].urb); - usb_free_urb(as->usbout.surb[0].urb); - usb_free_urb(as->usbout.surb[1].urb); - kfree(as); - return; - } - if ((as->dev_audio = register_sound_dsp(&usb_audio_fops, -1)) < 0) { - printk(KERN_ERR "usbaudio: cannot register dsp\n"); - usb_free_urb(as->usbin.durb[0].urb); - usb_free_urb(as->usbin.durb[1].urb); - usb_free_urb(as->usbin.surb[0].urb); - usb_free_urb(as->usbin.surb[1].urb); - usb_free_urb(as->usbout.durb[0].urb); - usb_free_urb(as->usbout.durb[1].urb); - usb_free_urb(as->usbout.surb[0].urb); - usb_free_urb(as->usbout.surb[1].urb); - kfree(as); - return; - } - printk(KERN_INFO "usbaudio: registered dsp 14,%d\n", as->dev_audio); - /* everything successful */ - list_add_tail(&as->list, &s->audiolist); -} - -struct consmixstate { - struct usb_audio_state *s; - unsigned char *buffer; - unsigned int buflen; - unsigned int ctrlif; - struct mixerchannel mixch[SOUND_MIXER_NRDEVICES]; - unsigned int nrmixch; - unsigned int mixchmask; - unsigned long unitbitmap[32/sizeof(unsigned long)]; - /* return values */ - unsigned int nrchannels; - unsigned int termtype; - unsigned int chconfig; -}; - -static struct mixerchannel *getmixchannel(struct consmixstate *state, unsigned int nr) -{ - struct mixerchannel *c; - - if (nr >= SOUND_MIXER_NRDEVICES) { - printk(KERN_ERR "usbaudio: invalid OSS mixer channel %u\n", nr); - return NULL; - } - if (!(state->mixchmask & (1 << nr))) { - printk(KERN_WARNING "usbaudio: OSS mixer channel %u already in use\n", nr); - return NULL; - } - c = &state->mixch[state->nrmixch++]; - c->osschannel = nr; - state->mixchmask &= ~(1 << nr); - return c; -} - -static unsigned int getvolchannel(struct consmixstate *state) -{ - unsigned int u; - - if ((state->termtype & 0xff00) == 0x0000 && (state->mixchmask & SOUND_MASK_VOLUME)) - return SOUND_MIXER_VOLUME; - if ((state->termtype & 0xff00) == 0x0100) { - if (state->mixchmask & SOUND_MASK_PCM) - return SOUND_MIXER_PCM; - if (state->mixchmask & SOUND_MASK_ALTPCM) - return SOUND_MIXER_ALTPCM; - } - if ((state->termtype & 0xff00) == 0x0200 && (state->mixchmask & SOUND_MASK_MIC)) - return SOUND_MIXER_MIC; - if ((state->termtype & 0xff00) == 0x0300 && (state->mixchmask & SOUND_MASK_SPEAKER)) - return SOUND_MIXER_SPEAKER; - if ((state->termtype & 0xff00) == 0x0500) { - if (state->mixchmask & SOUND_MASK_PHONEIN) - return SOUND_MIXER_PHONEIN; - if (state->mixchmask & SOUND_MASK_PHONEOUT) - return SOUND_MIXER_PHONEOUT; - } - if (state->termtype >= 0x710 && state->termtype <= 0x711 && (state->mixchmask & SOUND_MASK_RADIO)) - return SOUND_MIXER_RADIO; - if (state->termtype >= 0x709 && state->termtype <= 0x70f && (state->mixchmask & SOUND_MASK_VIDEO)) - return SOUND_MIXER_VIDEO; - u = ffs(state->mixchmask & (SOUND_MASK_LINE | SOUND_MASK_CD | SOUND_MASK_LINE1 | SOUND_MASK_LINE2 | SOUND_MASK_LINE3 | - SOUND_MASK_DIGITAL1 | SOUND_MASK_DIGITAL2 | SOUND_MASK_DIGITAL3)); - return u-1; -} - -static void prepmixch(struct consmixstate *state) -{ - struct usb_device *dev = state->s->usbdev; - struct mixerchannel *ch; - unsigned char *buf; - __s16 v1; - unsigned int v2, v3; - - if (!state->nrmixch || state->nrmixch > SOUND_MIXER_NRDEVICES) - return; - buf = kmalloc(sizeof(*buf) * 2, GFP_KERNEL); - if (!buf) { - printk(KERN_ERR "prepmixch: out of memory\n") ; - return; - } - - ch = &state->mixch[state->nrmixch-1]; - switch (ch->selector) { - case 0: /* mixer unit request */ - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_MIN, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - (ch->chnum << 8) | 1, state->ctrlif | (ch->unitid << 8), buf, 2, 1000) < 0) - goto err; - ch->minval = buf[0] | (buf[1] << 8); - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_MAX, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - (ch->chnum << 8) | 1, state->ctrlif | (ch->unitid << 8), buf, 2, 1000) < 0) - goto err; - ch->maxval = buf[0] | (buf[1] << 8); - v2 = ch->maxval - ch->minval; - if (!v2) - v2 = 1; - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - (ch->chnum << 8) | 1, state->ctrlif | (ch->unitid << 8), buf, 2, 1000) < 0) - goto err; - v1 = buf[0] | (buf[1] << 8); - v3 = v1 - ch->minval; - v3 = 100 * v3 / v2; - if (v3 > 100) - v3 = 100; - ch->value = v3; - if (ch->flags & (MIXFLG_STEREOIN | MIXFLG_STEREOOUT)) { - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - ((ch->chnum + !!(ch->flags & MIXFLG_STEREOIN)) << 8) | (1 + !!(ch->flags & MIXFLG_STEREOOUT)), - state->ctrlif | (ch->unitid << 8), buf, 2, 1000) < 0) - goto err; - v1 = buf[0] | (buf[1] << 8); - v3 = v1 - ch->minval; - v3 = 100 * v3 / v2; - if (v3 > 100) - v3 = 100; - } - ch->value |= v3 << 8; - break; - - /* various feature unit controls */ - case VOLUME_CONTROL: - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_MIN, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - (ch->selector << 8) | ch->chnum, state->ctrlif | (ch->unitid << 8), buf, 2, 1000) < 0) - goto err; - ch->minval = buf[0] | (buf[1] << 8); - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_MAX, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - (ch->selector << 8) | ch->chnum, state->ctrlif | (ch->unitid << 8), buf, 2, 1000) < 0) - goto err; - ch->maxval = buf[0] | (buf[1] << 8); - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - (ch->selector << 8) | ch->chnum, state->ctrlif | (ch->unitid << 8), buf, 2, 1000) < 0) - goto err; - v1 = buf[0] | (buf[1] << 8); - v2 = ch->maxval - ch->minval; - v3 = v1 - ch->minval; - if (!v2) - v2 = 1; - v3 = 100 * v3 / v2; - if (v3 > 100) - v3 = 100; - ch->value = v3; - if (ch->flags & (MIXFLG_STEREOIN | MIXFLG_STEREOOUT)) { - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - (ch->selector << 8) | (ch->chnum + 1), state->ctrlif | (ch->unitid << 8), buf, 2, 1000) < 0) - goto err; - v1 = buf[0] | (buf[1] << 8); - v3 = v1 - ch->minval; - v3 = 100 * v3 / v2; - if (v3 > 100) - v3 = 100; - } - ch->value |= v3 << 8; - break; - - case BASS_CONTROL: - case MID_CONTROL: - case TREBLE_CONTROL: - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_MIN, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - (ch->selector << 8) | ch->chnum, state->ctrlif | (ch->unitid << 8), buf, 1, 1000) < 0) - goto err; - ch->minval = buf[0] << 8; - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_MAX, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - (ch->selector << 8) | ch->chnum, state->ctrlif | (ch->unitid << 8), buf, 1, 1000) < 0) - goto err; - ch->maxval = buf[0] << 8; - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - (ch->selector << 8) | ch->chnum, state->ctrlif | (ch->unitid << 8), buf, 1, 1000) < 0) - goto err; - v1 = buf[0] << 8; - v2 = ch->maxval - ch->minval; - v3 = v1 - ch->minval; - if (!v2) - v2 = 1; - v3 = 100 * v3 / v2; - if (v3 > 100) - v3 = 100; - ch->value = v3; - if (ch->flags & (MIXFLG_STEREOIN | MIXFLG_STEREOOUT)) { - if (usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, - (ch->selector << 8) | (ch->chnum + 1), state->ctrlif | (ch->unitid << 8), buf, 1, 1000) < 0) - goto err; - v1 = buf[0] << 8; - v3 = v1 - ch->minval; - v3 = 100 * v3 / v2; - if (v3 > 100) - v3 = 100; - } - ch->value |= v3 << 8; - break; - - default: - goto err; - } - - freebuf: - kfree(buf); - return; - err: - printk(KERN_ERR "usbaudio: mixer request device %u if %u unit %u ch %u selector %u failed\n", - dev->devnum, state->ctrlif, ch->unitid, ch->chnum, ch->selector); - if (state->nrmixch) - state->nrmixch--; - goto freebuf; -} - - -static void usb_audio_recurseunit(struct consmixstate *state, unsigned char unitid); - -static inline int checkmixbmap(unsigned char *bmap, unsigned char flg, unsigned int inidx, unsigned int numoch) -{ - unsigned int idx; - - idx = inidx*numoch; - if (!(bmap[-(idx >> 3)] & (0x80 >> (idx & 7)))) - return 0; - if (!(flg & (MIXFLG_STEREOIN | MIXFLG_STEREOOUT))) - return 1; - idx = (inidx+!!(flg & MIXFLG_STEREOIN))*numoch+!!(flg & MIXFLG_STEREOOUT); - if (!(bmap[-(idx >> 3)] & (0x80 >> (idx & 7)))) - return 0; - return 1; -} - -static void usb_audio_mixerunit(struct consmixstate *state, unsigned char *mixer) -{ - unsigned int nroutch = mixer[5+mixer[4]]; - unsigned int chidx[SOUND_MIXER_NRDEVICES+1]; - unsigned int termt[SOUND_MIXER_NRDEVICES]; - unsigned char flg = (nroutch >= 2) ? MIXFLG_STEREOOUT : 0; - unsigned char *bmap = &mixer[9+mixer[4]]; - unsigned int bmapsize; - struct mixerchannel *ch; - unsigned int i; - - if (!mixer[4]) { - printk(KERN_ERR "usbaudio: unit %u invalid MIXER_UNIT descriptor\n", mixer[3]); - return; - } - if (mixer[4] > SOUND_MIXER_NRDEVICES) { - printk(KERN_ERR "usbaudio: mixer unit %u: too many input pins\n", mixer[3]); - return; - } - chidx[0] = 0; - for (i = 0; i < mixer[4]; i++) { - usb_audio_recurseunit(state, mixer[5+i]); - chidx[i+1] = chidx[i] + state->nrchannels; - termt[i] = state->termtype; - } - state->termtype = 0; - state->chconfig = mixer[6+mixer[4]] | (mixer[7+mixer[4]] << 8); - bmapsize = (nroutch * chidx[mixer[4]] + 7) >> 3; - bmap += bmapsize - 1; - if (mixer[0] < 10+mixer[4]+bmapsize) { - printk(KERN_ERR "usbaudio: unit %u invalid MIXER_UNIT descriptor (bitmap too small)\n", mixer[3]); - return; - } - for (i = 0; i < mixer[4]; i++) { - state->termtype = termt[i]; - if (chidx[i+1]-chidx[i] >= 2) { - flg |= MIXFLG_STEREOIN; - if (checkmixbmap(bmap, flg, chidx[i], nroutch)) { - ch = getmixchannel(state, getvolchannel(state)); - if (ch) { - ch->unitid = mixer[3]; - ch->selector = 0; - ch->chnum = chidx[i]+1; - ch->flags = flg; - prepmixch(state); - } - continue; - } - } - flg &= ~MIXFLG_STEREOIN; - if (checkmixbmap(bmap, flg, chidx[i], nroutch)) { - ch = getmixchannel(state, getvolchannel(state)); - if (ch) { - ch->unitid = mixer[3]; - ch->selector = 0; - ch->chnum = chidx[i]+1; - ch->flags = flg; - prepmixch(state); - } - } - } - state->termtype = 0; -} - -static struct mixerchannel *slctsrc_findunit(struct consmixstate *state, __u8 unitid) -{ - unsigned int i; - - for (i = 0; i < state->nrmixch; i++) - if (state->mixch[i].unitid == unitid) - return &state->mixch[i]; - return NULL; -} - -static void usb_audio_selectorunit(struct consmixstate *state, unsigned char *selector) -{ - unsigned int chnum, i, mixch; - struct mixerchannel *mch; - - if (!selector[4]) { - printk(KERN_ERR "usbaudio: unit %u invalid SELECTOR_UNIT descriptor\n", selector[3]); - return; - } - mixch = state->nrmixch; - usb_audio_recurseunit(state, selector[5]); - if (state->nrmixch != mixch) { - mch = &state->mixch[state->nrmixch-1]; - mch->slctunitid = selector[3] | (1 << 8); - } else if ((mch = slctsrc_findunit(state, selector[5]))) { - mch->slctunitid = selector[3] | (1 << 8); - } else { - printk(KERN_INFO "usbaudio: selector unit %u: ignoring channel 1\n", selector[3]); - } - chnum = state->nrchannels; - for (i = 1; i < selector[4]; i++) { - mixch = state->nrmixch; - usb_audio_recurseunit(state, selector[5+i]); - if (chnum != state->nrchannels) { - printk(KERN_ERR "usbaudio: selector unit %u: input pins with varying channel numbers\n", selector[3]); - state->termtype = 0; - state->chconfig = 0; - state->nrchannels = 0; - return; - } - if (state->nrmixch != mixch) { - mch = &state->mixch[state->nrmixch-1]; - mch->slctunitid = selector[3] | ((i + 1) << 8); - } else if ((mch = slctsrc_findunit(state, selector[5+i]))) { - mch->slctunitid = selector[3] | ((i + 1) << 8); - } else { - printk(KERN_INFO "usbaudio: selector unit %u: ignoring channel %u\n", selector[3], i+1); - } - } - state->termtype = 0; - state->chconfig = 0; -} - -/* in the future we might try to handle 3D etc. effect units */ - -static void usb_audio_processingunit(struct consmixstate *state, unsigned char *proc) -{ - unsigned int i; - - for (i = 0; i < proc[6]; i++) - usb_audio_recurseunit(state, proc[7+i]); - state->nrchannels = proc[7+proc[6]]; - state->termtype = 0; - state->chconfig = proc[8+proc[6]] | (proc[9+proc[6]] << 8); -} - - -/* See Audio Class Spec, section 4.3.2.5 */ -static void usb_audio_featureunit(struct consmixstate *state, unsigned char *ftr) -{ - struct mixerchannel *ch; - unsigned short chftr, mchftr; -#if 0 - struct usb_device *dev = state->s->usbdev; - unsigned char data[1]; -#endif - unsigned char nr_logical_channels, i; - - usb_audio_recurseunit(state, ftr[4]); - - if (ftr[5] == 0 ) { - printk(KERN_ERR "usbaudio: wrong controls size in feature unit %u\n",ftr[3]); - return; - } - - if (state->nrchannels == 0) { - printk(KERN_ERR "usbaudio: feature unit %u source has no channels\n", ftr[3]); - return; - } - if (state->nrchannels > 2) - printk(KERN_WARNING "usbaudio: feature unit %u: OSS mixer interface does not support more than 2 channels\n", ftr[3]); - - nr_logical_channels=(ftr[0]-7)/ftr[5]-1; - - if (nr_logical_channels != state->nrchannels) { - printk(KERN_WARNING "usbaudio: warning: found %d of %d logical channels.\n", state->nrchannels,nr_logical_channels); - - if (state->nrchannels == 1 && nr_logical_channels==0) { - printk(KERN_INFO "usbaudio: assuming the channel found is the master channel (got a Philips camera?). Should be fine.\n"); - } else if (state->nrchannels == 1 && nr_logical_channels==2) { - printk(KERN_INFO "usbaudio: assuming that a stereo channel connected directly to a mixer is missing in search (got Labtec headset?). Should be fine.\n"); - state->nrchannels=nr_logical_channels; - } else { - printk(KERN_WARNING "usbaudio: no idea what's going on..., contact linux-usb-devel@lists.sourceforge.net\n"); - } - } - - /* There is always a master channel */ - mchftr = ftr[6]; - /* Binary AND over logical channels if they exist */ - if (nr_logical_channels) { - chftr = ftr[6+ftr[5]]; - for (i = 2; i <= nr_logical_channels; i++) - chftr &= ftr[6+i*ftr[5]]; - } else { - chftr = 0; - } - - /* volume control */ - if (chftr & 2) { - ch = getmixchannel(state, getvolchannel(state)); - if (ch) { - ch->unitid = ftr[3]; - ch->selector = VOLUME_CONTROL; - ch->chnum = 1; - ch->flags = (state->nrchannels > 1) ? (MIXFLG_STEREOIN | MIXFLG_STEREOOUT) : 0; - prepmixch(state); - } - } else if (mchftr & 2) { - ch = getmixchannel(state, getvolchannel(state)); - if (ch) { - ch->unitid = ftr[3]; - ch->selector = VOLUME_CONTROL; - ch->chnum = 0; - ch->flags = 0; - prepmixch(state); - } - } - /* bass control */ - if (chftr & 4) { - ch = getmixchannel(state, SOUND_MIXER_BASS); - if (ch) { - ch->unitid = ftr[3]; - ch->selector = BASS_CONTROL; - ch->chnum = 1; - ch->flags = (state->nrchannels > 1) ? (MIXFLG_STEREOIN | MIXFLG_STEREOOUT) : 0; - prepmixch(state); - } - } else if (mchftr & 4) { - ch = getmixchannel(state, SOUND_MIXER_BASS); - if (ch) { - ch->unitid = ftr[3]; - ch->selector = BASS_CONTROL; - ch->chnum = 0; - ch->flags = 0; - prepmixch(state); - } - } - /* treble control */ - if (chftr & 16) { - ch = getmixchannel(state, SOUND_MIXER_TREBLE); - if (ch) { - ch->unitid = ftr[3]; - ch->selector = TREBLE_CONTROL; - ch->chnum = 1; - ch->flags = (state->nrchannels > 1) ? (MIXFLG_STEREOIN | MIXFLG_STEREOOUT) : 0; - prepmixch(state); - } - } else if (mchftr & 16) { - ch = getmixchannel(state, SOUND_MIXER_TREBLE); - if (ch) { - ch->unitid = ftr[3]; - ch->selector = TREBLE_CONTROL; - ch->chnum = 0; - ch->flags = 0; - prepmixch(state); - } - } -#if 0 - /* if there are mute controls, unmute them */ - /* does not seem to be necessary, and the Dallas chip does not seem to support the "all" channel (255) */ - if ((chftr & 1) || (mchftr & 1)) { - printk(KERN_DEBUG "usbaudio: unmuting feature unit %u interface %u\n", ftr[3], state->ctrlif); - data[0] = 0; - if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, - (MUTE_CONTROL << 8) | 0xff, state->ctrlif | (ftr[3] << 8), data, 1, 1000) < 0) - printk(KERN_WARNING "usbaudio: failure to unmute feature unit %u interface %u\n", ftr[3], state->ctrlif); - } -#endif -} - -static void usb_audio_recurseunit(struct consmixstate *state, unsigned char unitid) -{ - unsigned char *p1; - unsigned int i, j; - - if (test_and_set_bit(unitid, state->unitbitmap)) { - printk(KERN_INFO "usbaudio: mixer path revisits unit %d\n", unitid); - return; - } - p1 = find_audiocontrol_unit(state->buffer, state->buflen, NULL, unitid, state->ctrlif); - if (!p1) { - printk(KERN_ERR "usbaudio: unit %d not found!\n", unitid); - return; - } - state->nrchannels = 0; - state->termtype = 0; - state->chconfig = 0; - switch (p1[2]) { - case INPUT_TERMINAL: - if (p1[0] < 12) { - printk(KERN_ERR "usbaudio: unit %u: invalid INPUT_TERMINAL descriptor\n", unitid); - return; - } - state->nrchannels = p1[7]; - state->termtype = p1[4] | (p1[5] << 8); - state->chconfig = p1[8] | (p1[9] << 8); - return; - - case MIXER_UNIT: - if (p1[0] < 10 || p1[0] < 10+p1[4]) { - printk(KERN_ERR "usbaudio: unit %u: invalid MIXER_UNIT descriptor\n", unitid); - return; - } - usb_audio_mixerunit(state, p1); - return; - - case SELECTOR_UNIT: - if (p1[0] < 6 || p1[0] < 6+p1[4]) { - printk(KERN_ERR "usbaudio: unit %u: invalid SELECTOR_UNIT descriptor\n", unitid); - return; - } - usb_audio_selectorunit(state, p1); - return; - - case FEATURE_UNIT: /* See USB Audio Class Spec 4.3.2.5 */ - if (p1[0] < 7 || p1[0] < 7+p1[5]) { - printk(KERN_ERR "usbaudio: unit %u: invalid FEATURE_UNIT descriptor\n", unitid); - return; - } - usb_audio_featureunit(state, p1); - return; - - case PROCESSING_UNIT: - if (p1[0] < 13 || p1[0] < 13+p1[6] || p1[0] < 13+p1[6]+p1[11+p1[6]]) { - printk(KERN_ERR "usbaudio: unit %u: invalid PROCESSING_UNIT descriptor\n", unitid); - return; - } - usb_audio_processingunit(state, p1); - return; - - case EXTENSION_UNIT: - if (p1[0] < 13 || p1[0] < 13+p1[6] || p1[0] < 13+p1[6]+p1[11+p1[6]]) { - printk(KERN_ERR "usbaudio: unit %u: invalid EXTENSION_UNIT descriptor\n", unitid); - return; - } - for (j = i = 0; i < p1[6]; i++) { - usb_audio_recurseunit(state, p1[7+i]); - if (!i) - j = state->termtype; - else if (j != state->termtype) - j = 0; - } - state->nrchannels = p1[7+p1[6]]; - state->chconfig = p1[8+p1[6]] | (p1[9+p1[6]] << 8); - state->termtype = j; - return; - - default: - printk(KERN_ERR "usbaudio: unit %u: unexpected type 0x%02x\n", unitid, p1[2]); - return; - } -} - -static void usb_audio_constructmixer(struct usb_audio_state *s, unsigned char *buffer, unsigned int buflen, unsigned int ctrlif, unsigned char *oterm) -{ - struct usb_mixerdev *ms; - struct consmixstate state; - - memset(&state, 0, sizeof(state)); - state.s = s; - state.nrmixch = 0; - state.mixchmask = ~0; - state.buffer = buffer; - state.buflen = buflen; - state.ctrlif = ctrlif; - set_bit(oterm[3], state.unitbitmap); /* mark terminal ID as visited */ - printk(KERN_DEBUG "usbaudio: constructing mixer for Terminal %u type 0x%04x\n", - oterm[3], oterm[4] | (oterm[5] << 8)); - usb_audio_recurseunit(&state, oterm[7]); - if (!state.nrmixch) { - printk(KERN_INFO "usbaudio: no mixer controls found for Terminal %u\n", oterm[3]); - return; - } - if (!(ms = kmalloc(sizeof(struct usb_mixerdev)+state.nrmixch*sizeof(struct mixerchannel), GFP_KERNEL))) - return; - memset(ms, 0, sizeof(struct usb_mixerdev)); - memcpy(&ms->ch, &state.mixch, state.nrmixch*sizeof(struct mixerchannel)); - ms->state = s; - ms->iface = ctrlif; - ms->numch = state.nrmixch; - if ((ms->dev_mixer = register_sound_mixer(&usb_mixer_fops, -1)) < 0) { - printk(KERN_ERR "usbaudio: cannot register mixer\n"); - kfree(ms); - return; - } - printk(KERN_INFO "usbaudio: registered mixer 14,%d\n", ms->dev_mixer); - list_add_tail(&ms->list, &s->mixerlist); -} - -/* arbitrary limit, we won't check more interfaces than this */ -#define USB_MAXINTERFACES 32 - -static struct usb_audio_state *usb_audio_parsecontrol(struct usb_device *dev, unsigned char *buffer, unsigned int buflen, unsigned int ctrlif) -{ - struct usb_audio_state *s; - struct usb_interface *iface; - struct usb_host_interface *alt; - unsigned char ifin[USB_MAXINTERFACES], ifout[USB_MAXINTERFACES]; - unsigned char *p1; - unsigned int i, j, k, numifin = 0, numifout = 0; - - if (!(s = kmalloc(sizeof(struct usb_audio_state), GFP_KERNEL))) - return NULL; - memset(s, 0, sizeof(struct usb_audio_state)); - INIT_LIST_HEAD(&s->audiolist); - INIT_LIST_HEAD(&s->mixerlist); - s->usbdev = dev; - s->count = 1; - - /* find audiocontrol interface */ - if (!(p1 = find_csinterface_descriptor(buffer, buflen, NULL, HEADER, ctrlif, -1))) { - printk(KERN_ERR "usbaudio: device %d audiocontrol interface %u no HEADER found\n", - dev->devnum, ctrlif); - goto ret; - } - if (p1[0] < 8 + p1[7]) { - printk(KERN_ERR "usbaudio: device %d audiocontrol interface %u HEADER error\n", - dev->devnum, ctrlif); - goto ret; - } - if (!p1[7]) - printk(KERN_INFO "usbaudio: device %d audiocontrol interface %u has no AudioStreaming and MidiStreaming interfaces\n", - dev->devnum, ctrlif); - for (i = 0; i < p1[7]; i++) { - j = p1[8+i]; - iface = usb_ifnum_to_if(dev, j); - if (!iface) { - printk(KERN_ERR "usbaudio: device %d audiocontrol interface %u interface %u does not exist\n", - dev->devnum, ctrlif, j); - continue; - } - if (iface->num_altsetting == 1) { - printk(KERN_ERR "usbaudio: device %d audiocontrol interface %u has only 1 altsetting.\n", dev->devnum, ctrlif); - continue; - } - alt = usb_altnum_to_altsetting(iface, 0); - if (!alt) { - printk(KERN_ERR "usbaudio: device %d audiocontrol interface %u interface %u has no altsetting 0\n", - dev->devnum, ctrlif, j); - continue; - } - if (alt->desc.bInterfaceClass != USB_CLASS_AUDIO) { - printk(KERN_ERR "usbaudio: device %d audiocontrol interface %u interface %u is not an AudioClass interface\n", - dev->devnum, ctrlif, j); - continue; - } - if (alt->desc.bInterfaceSubClass == 3) { - printk(KERN_INFO "usbaudio: device %d audiocontrol interface %u interface %u MIDIStreaming not supported\n", - dev->devnum, ctrlif, j); - continue; - } - if (alt->desc.bInterfaceSubClass != 2) { - printk(KERN_ERR "usbaudio: device %d audiocontrol interface %u interface %u invalid AudioClass subtype\n", - dev->devnum, ctrlif, j); - continue; - } - if (alt->desc.bNumEndpoints > 0) { - /* Check all endpoints; should they all have a bandwidth of 0 ? */ - for (k = 0; k < alt->desc.bNumEndpoints; k++) { - if (le16_to_cpu(alt->endpoint[k].desc.wMaxPacketSize) > 0) { - printk(KERN_ERR "usbaudio: device %d audiocontrol interface %u endpoint %d does not have 0 bandwidth at alt[0]\n", dev->devnum, ctrlif, k); - break; - } - } - if (k < alt->desc.bNumEndpoints) - continue; - } - - alt = usb_altnum_to_altsetting(iface, 1); - if (!alt) { - printk(KERN_ERR "usbaudio: device %d audiocontrol interface %u interface %u has no altsetting 1\n", - dev->devnum, ctrlif, j); - continue; - } - if (alt->desc.bNumEndpoints < 1) { - printk(KERN_ERR "usbaudio: device %d audiocontrol interface %u interface %u has no endpoint\n", - dev->devnum, ctrlif, j); - continue; - } - /* note: this requires the data endpoint to be ep0 and the optional sync - ep to be ep1, which seems to be the case */ - if (alt->endpoint[0].desc.bEndpointAddress & USB_DIR_IN) { - if (numifin < USB_MAXINTERFACES) { - ifin[numifin++] = j; - usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1); - } - } else { - if (numifout < USB_MAXINTERFACES) { - ifout[numifout++] = j; - usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1); - } - } - } - printk(KERN_INFO "usbaudio: device %d audiocontrol interface %u has %u input and %u output AudioStreaming interfaces\n", - dev->devnum, ctrlif, numifin, numifout); - for (i = 0; i < numifin && i < numifout; i++) - usb_audio_parsestreaming(s, buffer, buflen, ifin[i], ifout[i]); - for (j = i; j < numifin; j++) - usb_audio_parsestreaming(s, buffer, buflen, ifin[i], -1); - for (j = i; j < numifout; j++) - usb_audio_parsestreaming(s, buffer, buflen, -1, ifout[i]); - /* now walk through all OUTPUT_TERMINAL descriptors to search for mixers */ - p1 = find_csinterface_descriptor(buffer, buflen, NULL, OUTPUT_TERMINAL, ctrlif, -1); - while (p1) { - if (p1[0] >= 9) - usb_audio_constructmixer(s, buffer, buflen, ctrlif, p1); - p1 = find_csinterface_descriptor(buffer, buflen, p1, OUTPUT_TERMINAL, ctrlif, -1); - } - -ret: - if (list_empty(&s->audiolist) && list_empty(&s->mixerlist)) { - kfree(s); - return NULL; - } - /* everything successful */ - down(&open_sem); - list_add_tail(&s->audiodev, &audiodevs); - up(&open_sem); - printk(KERN_DEBUG "usb_audio_parsecontrol: usb_audio_state at %p\n", s); - return s; -} - -/* we only care for the currently active configuration */ - -static int usb_audio_probe(struct usb_interface *intf, - const struct usb_device_id *id) -{ - struct usb_device *dev = interface_to_usbdev (intf); - struct usb_audio_state *s; - unsigned char *buffer; - unsigned int buflen; - -#if 0 - printk(KERN_DEBUG "usbaudio: Probing if %i: IC %x, ISC %x\n", ifnum, - config->interface[ifnum].altsetting[0].desc.bInterfaceClass, - config->interface[ifnum].altsetting[0].desc.bInterfaceSubClass); -#endif - - /* - * audiocontrol interface found - * find which configuration number is active - */ - buffer = dev->rawdescriptors[dev->actconfig - dev->config]; - buflen = le16_to_cpu(dev->actconfig->desc.wTotalLength); - s = usb_audio_parsecontrol(dev, buffer, buflen, intf->altsetting->desc.bInterfaceNumber); - if (s) { - usb_set_intfdata (intf, s); - return 0; - } - return -ENODEV; -} - - -/* a revoke facility would make things simpler */ - -static void usb_audio_disconnect(struct usb_interface *intf) -{ - struct usb_audio_state *s = usb_get_intfdata (intf); - struct usb_audiodev *as; - struct usb_mixerdev *ms; - - if (!s) - return; - - /* we get called with -1 for every audiostreaming interface registered */ - if (s == (struct usb_audio_state *)-1) { - dprintk((KERN_DEBUG "usbaudio: note, usb_audio_disconnect called with -1\n")); - return; - } - if (!s->usbdev) { - dprintk((KERN_DEBUG "usbaudio: error, usb_audio_disconnect already called for %p!\n", s)); - return; - } - down(&open_sem); - list_del_init(&s->audiodev); - s->usbdev = NULL; - usb_set_intfdata (intf, NULL); - - /* deregister all audio and mixer devices, so no new processes can open this device */ - list_for_each_entry(as, &s->audiolist, list) { - usbin_disc(as); - usbout_disc(as); - wake_up(&as->usbin.dma.wait); - wake_up(&as->usbout.dma.wait); - if (as->dev_audio >= 0) { - unregister_sound_dsp(as->dev_audio); - printk(KERN_INFO "usbaudio: unregister dsp 14,%d\n", as->dev_audio); - } - as->dev_audio = -1; - } - list_for_each_entry(ms, &s->mixerlist, list) { - if (ms->dev_mixer >= 0) { - unregister_sound_mixer(ms->dev_mixer); - printk(KERN_INFO "usbaudio: unregister mixer 14,%d\n", ms->dev_mixer); - } - ms->dev_mixer = -1; - } - release(s); - wake_up(&open_wait); -} - -static int __init usb_audio_init(void) -{ - int result = usb_register(&usb_audio_driver); - if (result == 0) - info(DRIVER_VERSION ":" DRIVER_DESC); - return result; -} - - -static void __exit usb_audio_cleanup(void) -{ - usb_deregister(&usb_audio_driver); -} - -module_init(usb_audio_init); -module_exit(usb_audio_cleanup); - -MODULE_AUTHOR( DRIVER_AUTHOR ); -MODULE_DESCRIPTION( DRIVER_DESC ); -MODULE_LICENSE("GPL"); - diff --git a/drivers/usb/class/audio.h b/drivers/usb/class/audio.h deleted file mode 100644 index 45916eb..0000000 --- a/drivers/usb/class/audio.h +++ /dev/null @@ -1,110 +0,0 @@ -#define CS_AUDIO_UNDEFINED 0x20 -#define CS_AUDIO_DEVICE 0x21 -#define CS_AUDIO_CONFIGURATION 0x22 -#define CS_AUDIO_STRING 0x23 -#define CS_AUDIO_INTERFACE 0x24 -#define CS_AUDIO_ENDPOINT 0x25 - -#define HEADER 0x01 -#define INPUT_TERMINAL 0x02 -#define OUTPUT_TERMINAL 0x03 -#define MIXER_UNIT 0x04 -#define SELECTOR_UNIT 0x05 -#define FEATURE_UNIT 0x06 -#define PROCESSING_UNIT 0x07 -#define EXTENSION_UNIT 0x08 - -#define AS_GENERAL 0x01 -#define FORMAT_TYPE 0x02 -#define FORMAT_SPECIFIC 0x03 - -#define EP_GENERAL 0x01 - -#define MAX_CHAN 9 -#define MAX_FREQ 16 -#define MAX_IFACE 8 -#define MAX_FORMAT 8 -#define MAX_ALT 32 /* Sorry, we need quite a few for the Philips webcams */ - -struct usb_audio_terminal -{ - u8 flags; - u8 assoc; - u16 type; /* Mic etc */ - u8 channels; - u8 source; - u16 chancfg; -}; - -struct usb_audio_format -{ - u8 type; - u8 channels; - u8 num_freq; - u8 sfz; - u8 bits; - u16 freq[MAX_FREQ]; -}; - -struct usb_audio_interface -{ - u8 terminal; - u8 delay; - u16 num_formats; - u16 format_type; - u8 flags; - u8 idleconf; /* Idle config */ -#define AU_IFACE_FOUND 1 - struct usb_audio_format format[MAX_FORMAT]; -}; - -struct usb_audio_device -{ - struct list_head list; - u8 mixer; - u8 selector; - void *irq_handle; - u8 num_channels; - u8 num_dsp_iface; - u8 channel_map[MAX_CHAN]; - struct usb_audio_terminal terminal[MAX_CHAN]; - struct usb_audio_interface interface[MAX_IFACE][MAX_ALT]; -}; - - - -/* Audio Class specific Request Codes */ - -#define SET_CUR 0x01 -#define GET_CUR 0x81 -#define SET_MIN 0x02 -#define GET_MIN 0x82 -#define SET_MAX 0x03 -#define GET_MAX 0x83 -#define SET_RES 0x04 -#define GET_RES 0x84 -#define SET_MEM 0x05 -#define GET_MEM 0x85 -#define GET_STAT 0xff - -/* Terminal Control Selectors */ - -#define COPY_PROTECT_CONTROL 0x01 - -/* Feature Unit Control Selectors */ - -#define MUTE_CONTROL 0x01 -#define VOLUME_CONTROL 0x02 -#define BASS_CONTROL 0x03 -#define MID_CONTROL 0x04 -#define TREBLE_CONTROL 0x05 -#define GRAPHIC_EQUALIZER_CONTROL 0x06 -#define AUTOMATIC_GAIN_CONTROL 0x07 -#define DELAY_CONTROL 0x08 -#define BASS_BOOST_CONTROL 0x09 -#define LOUDNESS_CONTROL 0x0a - -/* Endpoint Control Selectors */ - -#define SAMPLING_FREQ_CONTROL 0x01 -#define PITCH_CONTROL 0x02 diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 97bdeb1..6dd339f 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -60,6 +60,7 @@ #include <linux/tty_flip.h> #include <linux/module.h> #include <linux/smp_lock.h> +#include <linux/mutex.h> #include <asm/uaccess.h> #include <linux/usb.h> #include <linux/usb_cdc.h> @@ -80,7 +81,7 @@ static struct usb_driver acm_driver; static struct tty_driver *acm_tty_driver; static struct acm *acm_table[ACM_TTY_MINORS]; -static DECLARE_MUTEX(open_sem); +static DEFINE_MUTEX(open_mutex); #define ACM_READY(acm) (acm && acm->dev && acm->used) @@ -431,8 +432,8 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp) int rv = -EINVAL; int i; dbg("Entering acm_tty_open.\n"); - - down(&open_sem); + + mutex_lock(&open_mutex); acm = acm_table[tty->index]; if (!acm || !acm->dev) @@ -474,14 +475,14 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp) done: err_out: - up(&open_sem); + mutex_unlock(&open_mutex); return rv; full_bailout: usb_kill_urb(acm->ctrlurb); bail_out: acm->used--; - up(&open_sem); + mutex_unlock(&open_mutex); return -EIO; } @@ -507,7 +508,7 @@ static void acm_tty_close(struct tty_struct *tty, struct file *filp) if (!acm || !acm->used) return; - down(&open_sem); + mutex_lock(&open_mutex); if (!--acm->used) { if (acm->dev) { acm_set_control(acm, acm->ctrlout = 0); @@ -518,7 +519,7 @@ static void acm_tty_close(struct tty_struct *tty, struct file *filp) } else acm_tty_unregister(acm); } - up(&open_sem); + mutex_unlock(&open_mutex); } static int acm_tty_write(struct tty_struct *tty, const unsigned char *buf, int count) @@ -1013,9 +1014,9 @@ static void acm_disconnect(struct usb_interface *intf) return; } - down(&open_sem); + mutex_lock(&open_mutex); if (!usb_get_intfdata(intf)) { - up(&open_sem); + mutex_unlock(&open_mutex); return; } acm->dev = NULL; @@ -1045,11 +1046,11 @@ static void acm_disconnect(struct usb_interface *intf) if (!acm->used) { acm_tty_unregister(acm); - up(&open_sem); + mutex_unlock(&open_mutex); return; } - up(&open_sem); + mutex_unlock(&open_mutex); if (acm->tty) tty_hangup(acm->tty); diff --git a/drivers/usb/class/usb-midi.c b/drivers/usb/class/usb-midi.c deleted file mode 100644 index f13f004..0000000 --- a/drivers/usb/class/usb-midi.c +++ /dev/null @@ -1,2153 +0,0 @@ -/* - usb-midi.c -- USB-MIDI driver - - Copyright (C) 2001 - NAGANO Daisuke <breeze.nagano@nifty.ne.jp> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - - This driver is based on: - - 'Universal Serial Bus Device Class Definition for MIDI Device' - - linux/drivers/sound/es1371.c, linux/drivers/usb/audio.c - - alsa/lowlevel/pci/cs64xx.c - - umidi.c for NetBSD - */ - -/* ------------------------------------------------------------------------- */ - - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/list.h> -#include <linux/slab.h> -#include <linux/usb.h> -#include <linux/poll.h> -#include <linux/sound.h> -#include <linux/init.h> -#include <asm/semaphore.h> - -#include "usb-midi.h" - -/* ------------------------------------------------------------------------- */ - -/* More verbose on syslog */ -#undef MIDI_DEBUG - -#define MIDI_IN_BUFSIZ 1024 - -#define HAVE_SUPPORT_USB_MIDI_CLASS - -#undef HAVE_SUPPORT_ALSA - -/* ------------------------------------------------------------------------- */ - -static int singlebyte = 0; -module_param(singlebyte, int, 0); -MODULE_PARM_DESC(singlebyte,"Enable sending MIDI messages with single message packet"); - -static int maxdevices = 4; -module_param(maxdevices, int, 0); -MODULE_PARM_DESC(maxdevices,"Max number of allocatable MIDI device"); - -static int uvendor = -1; -module_param(uvendor, int, 0); -MODULE_PARM_DESC(uvendor, "The USB Vendor ID of a semi-compliant interface"); - -static int uproduct = -1; -module_param(uproduct, int, 0); -MODULE_PARM_DESC(uproduct, "The USB Product ID of a semi-compliant interface"); - -static int uinterface = -1; -module_param(uinterface, int, 0); -MODULE_PARM_DESC(uinterface, "The Interface number of a semi-compliant interface"); - -static int ualt = -1; -module_param(ualt, int, 0); -MODULE_PARM_DESC(ualt, "The optional alternative setting of a semi-compliant interface"); - -static int umin = -1; -module_param(umin, int, 0); -MODULE_PARM_DESC(umin, "The input endpoint of a semi-compliant interface"); - -static int umout = -1; -module_param(umout, int, 0); -MODULE_PARM_DESC(umout, "The output endpoint of a semi-compliant interface"); - -static int ucable = -1; -module_param(ucable, int, 0); -MODULE_PARM_DESC(ucable, "The cable number used for a semi-compliant interface"); - -/** Note -- the usb_string() returns only Latin-1 characters. - * (unicode chars <= 255). To support Japanese, a unicode16LE-to-EUC or - * unicode16LE-to-JIS routine is needed to wrap around usb_get_string(). - **/ -static unsigned short ulangid = 0x0409; /** 0x0411 for Japanese **/ -module_param(ulangid, ushort, 0); -MODULE_PARM_DESC(ulangid, "The optional preferred USB Language ID for all devices"); - -MODULE_AUTHOR("NAGANO Daisuke <breeze.nagano@nifty.ne.jp>"); -MODULE_DESCRIPTION("USB-MIDI driver"); -MODULE_LICENSE("GPL"); - -/* ------------------------------------------------------------------------- */ - -/** MIDIStreaming Class-Specific Interface Descriptor Subtypes **/ - -#define MS_DESCRIPTOR_UNDEFINED 0 -#define MS_HEADER 1 -#define MIDI_IN_JACK 2 -#define MIDI_OUT_JACK 3 -/* Spec reads: ELEMENT */ -#define ELEMENT_DESCRIPTOR 4 - -#define MS_HEADER_LENGTH 7 - -/** MIDIStreaming Class-Specific Endpoint Descriptor Subtypes **/ - -#define DESCRIPTOR_UNDEFINED 0 -/* Spec reads: MS_GENERAL */ -#define MS_GENERAL_ENDPOINT 1 - -/** MIDIStreaming MIDI IN and OUT Jack Types **/ - -#define JACK_TYPE_UNDEFINED 0 -/* Spec reads: EMBEDDED */ -#define EMBEDDED_JACK 1 -/* Spec reads: EXTERNAL */ -#define EXTERNAL_JACK 2 - - -/* structure summary - - usb_midi_state usb_device - | | - *| *| per ep - in_ep out_ep - | | - *| *| per cable - min mout - | | (cable to device pairing magic) - | | - usb_midi_dev dev_id (major,minor) == file->private_data - -*/ - -/* usb_midi_state: corresponds to a USB-MIDI module */ -struct usb_midi_state { - struct list_head mididev; - - struct usb_device *usbdev; - - struct list_head midiDevList; - struct list_head inEndpointList; - struct list_head outEndpointList; - - spinlock_t lock; - - unsigned int count; /* usage counter */ -}; - -/* midi_out_endpoint: corresponds to an output endpoint */ -struct midi_out_endpoint { - struct list_head list; - - struct usb_device *usbdev; - int endpoint; - spinlock_t lock; - wait_queue_head_t wait; - - unsigned char *buf; - int bufWrPtr; - int bufSize; - - struct urb *urb; -}; - -/* midi_in_endpoint: corresponds to an input endpoint */ -struct midi_in_endpoint { - struct list_head list; - - struct usb_device *usbdev; - int endpoint; - spinlock_t lock; - wait_queue_head_t wait; - - struct usb_mididev *cables[16]; // cables open for read - int readers; // number of cables open for read - - struct urb *urb; - unsigned char *recvBuf; - int recvBufSize; - int urbSubmitted; //FIXME: == readers > 0 -}; - -/* usb_mididev: corresponds to a logical device */ -struct usb_mididev { - struct list_head list; - - struct usb_midi_state *midi; - int dev_midi; - mode_t open_mode; - - struct { - struct midi_in_endpoint *ep; - int cableId; - -// as we are pushing data from usb_bulk_read to usb_midi_read, -// we need a larger, cyclic buffer here. - unsigned char buf[MIDI_IN_BUFSIZ]; - int bufRdPtr; - int bufWrPtr; - int bufRemains; - } min; - - struct { - struct midi_out_endpoint *ep; - int cableId; - - unsigned char buf[3]; - int bufPtr; - int bufRemains; - - int isInExclusive; - unsigned char lastEvent; - } mout; - - int singlebyte; -}; - -/** Map the high nybble of MIDI voice messages to number of Message bytes. - * High nyble ranges from 0x8 to 0xe - */ - -static int remains_80e0[] = { - 3, /** 0x8X Note Off **/ - 3, /** 0x9X Note On **/ - 3, /** 0xAX Poly-key pressure **/ - 3, /** 0xBX Control Change **/ - 2, /** 0xCX Program Change **/ - 2, /** 0xDX Channel pressure **/ - 3 /** 0xEX PitchBend Change **/ -}; - -/** Map the messages to a number of Message bytes. - * - **/ -static int remains_f0f6[] = { - 0, /** 0xF0 **/ - 2, /** 0XF1 **/ - 3, /** 0XF2 **/ - 2, /** 0XF3 **/ - 2, /** 0XF4 (Undefined by MIDI Spec, and subject to change) **/ - 2, /** 0XF5 (Undefined by MIDI Spec, and subject to change) **/ - 1 /** 0XF6 **/ -}; - -/** Map the messages to a CIN (Code Index Number). - * - **/ -static int cin_f0ff[] = { - 4, /** 0xF0 System Exclusive Message Start (special cases may be 6 or 7) */ - 2, /** 0xF1 **/ - 3, /** 0xF2 **/ - 2, /** 0xF3 **/ - 2, /** 0xF4 **/ - 2, /** 0xF5 **/ - 5, /** 0xF6 **/ - 5, /** 0xF7 End of System Exclusive Message (May be 6 or 7) **/ - 5, /** 0xF8 **/ - 5, /** 0xF9 **/ - 5, /** 0xFA **/ - 5, /** 0xFB **/ - 5, /** 0xFC **/ - 5, /** 0xFD **/ - 5, /** 0xFE **/ - 5 /** 0xFF **/ -}; - -/** Map MIDIStreaming Event packet Code Index Number (low nybble of byte 0) - * to the number of bytes of valid MIDI data. - * - * CIN of 0 and 1 are NOT USED in MIDIStreaming 1.0. - * - **/ -static int cin_to_len[] = { - 0, 0, 2, 3, - 3, 1, 2, 3, - 3, 3, 3, 3, - 2, 2, 3, 1 -}; - - -/* ------------------------------------------------------------------------- */ - -static struct list_head mididevs = LIST_HEAD_INIT(mididevs); - -static DECLARE_MUTEX(open_sem); -static DECLARE_WAIT_QUEUE_HEAD(open_wait); - - -/* ------------------------------------------------------------------------- */ - -static void usb_write_callback(struct urb *urb, struct pt_regs *regs) -{ - struct midi_out_endpoint *ep = (struct midi_out_endpoint *)urb->context; - - if ( waitqueue_active( &ep->wait ) ) - wake_up_interruptible( &ep->wait ); -} - - -static int usb_write( struct midi_out_endpoint *ep, unsigned char *buf, int len ) -{ - struct usb_device *d; - int pipe; - int ret = 0; - int status; - int maxretry = 50; - - DECLARE_WAITQUEUE(wait,current); - init_waitqueue_head(&ep->wait); - - d = ep->usbdev; - pipe = usb_sndbulkpipe(d, ep->endpoint); - usb_fill_bulk_urb( ep->urb, d, pipe, (unsigned char*)buf, len, - usb_write_callback, ep ); - - status = usb_submit_urb(ep->urb, GFP_KERNEL); - - if (status) { - printk(KERN_ERR "usbmidi: Cannot submit urb (%d)\n",status); - ret = -EIO; - goto error; - } - - add_wait_queue( &ep->wait, &wait ); - set_current_state( TASK_INTERRUPTIBLE ); - - while( ep->urb->status == -EINPROGRESS ) { - if ( maxretry-- < 0 ) { - printk(KERN_ERR "usbmidi: usb_bulk_msg timed out\n"); - ret = -ETIME; - break; - } - interruptible_sleep_on_timeout( &ep->wait, 10 ); - } - set_current_state( TASK_RUNNING ); - remove_wait_queue( &ep->wait, &wait ); - -error: - return ret; -} - - -/** Copy data from URB to In endpoint buf. - * Discard if CIN == 0 or CIN = 1. - * - * - **/ - -static void usb_bulk_read(struct urb *urb, struct pt_regs *regs) -{ - struct midi_in_endpoint *ep = (struct midi_in_endpoint *)(urb->context); - unsigned char *data = urb->transfer_buffer; - int i, j, wake; - - if ( !ep->urbSubmitted ) { - return; - } - - if ( (urb->status == 0) && (urb->actual_length > 0) ) { - wake = 0; - spin_lock( &ep->lock ); - - for(j = 0; j < urb->actual_length; j += 4) { - int cin = (data[j]>>0)&0xf; - int cab = (data[j]>>4)&0xf; - struct usb_mididev *cable = ep->cables[cab]; - if ( cable ) { - int len = cin_to_len[cin]; /** length of MIDI data **/ - for (i = 0; i < len; i++) { - cable->min.buf[cable->min.bufWrPtr] = data[1+i+j]; - cable->min.bufWrPtr = (cable->min.bufWrPtr+1)%MIDI_IN_BUFSIZ; - if (cable->min.bufRemains < MIDI_IN_BUFSIZ) - cable->min.bufRemains += 1; - else /** need to drop data **/ - cable->min.bufRdPtr += (cable->min.bufRdPtr+1)%MIDI_IN_BUFSIZ; - wake = 1; - } - } - } - - spin_unlock ( &ep->lock ); - if ( wake ) { - wake_up( &ep->wait ); - } - } - - /* urb->dev must be reinitialized on 2.4.x kernels */ - urb->dev = ep->usbdev; - - urb->actual_length = 0; - usb_submit_urb(urb, GFP_ATOMIC); -} - - - -/* ------------------------------------------------------------------------- */ - -/* This routine must be called with spin_lock */ - -/** Wrapper around usb_write(). - * This routine must be called with spin_lock held on ep. - * Called by midiWrite(), putOneMidiEvent(), and usb_midi_write(); - **/ -static int flush_midi_buffer( struct midi_out_endpoint *ep ) -{ - int ret=0; - - if ( ep->bufWrPtr > 0 ) { - ret = usb_write( ep, ep->buf, ep->bufWrPtr ); - ep->bufWrPtr = 0; - } - - return ret; -} - - -/* ------------------------------------------------------------------------- */ - - -/** Given a MIDI Event, determine size of data to be attached to - * USB-MIDI packet. - * Returns 1, 2 or 3. - * Called by midiWrite(); - * Uses remains_80e0 and remains_f0f6; - **/ -static int get_remains(int event) -{ - int ret; - - if ( event < 0x80 ) { - ret = 1; - } else if ( event < 0xf0 ) { - ret = remains_80e0[((event-0x80)>>4)&0x0f]; - } else if ( event < 0xf7 ) { - ret = remains_f0f6[event-0xf0]; - } else { - ret = 1; - } - - return ret; -} - -/** Given the output MIDI data in the output buffer, computes a reasonable - * CIN. - * Called by putOneMidiEvent(). - **/ -static int get_CIN( struct usb_mididev *m ) -{ - int cin; - - if ( m->mout.buf[0] == 0xf7 ) { - cin = 5; - } - else if ( m->mout.buf[1] == 0xf7 ) { - cin = 6; - } - else if ( m->mout.buf[2] == 0xf7 ) { - cin = 7; - } - else { - if ( m->mout.isInExclusive == 1 ) { - cin = 4; - } else if ( m->mout.buf[0] < 0x80 ) { - /** One byte that we know nothing about. **/ - cin = 0xF; - } else if ( m->mout.buf[0] < 0xf0 ) { - /** MIDI Voice messages 0x8X to 0xEX map to cin 0x8 to 0xE. **/ - cin = (m->mout.buf[0]>>4)&0x0f; - } - else { - /** Special lookup table exists for real-time events. **/ - cin = cin_f0ff[m->mout.buf[0]-0xf0]; - } - } - - return cin; -} - - -/* ------------------------------------------------------------------------- */ - - - -/** Move data to USB endpoint buffer. - * - **/ -static int put_one_midi_event(struct usb_mididev *m) -{ - int cin; - unsigned long flags; - struct midi_out_endpoint *ep = m->mout.ep; - int ret=0; - - cin = get_CIN( m ); - if ( cin > 0x0f || cin < 0 ) { - return -EINVAL; - } - - spin_lock_irqsave( &ep->lock, flags ); - ep->buf[ep->bufWrPtr++] = (m->mout.cableId<<4) | cin; - ep->buf[ep->bufWrPtr++] = m->mout.buf[0]; - ep->buf[ep->bufWrPtr++] = m->mout.buf[1]; - ep->buf[ep->bufWrPtr++] = m->mout.buf[2]; - if ( ep->bufWrPtr >= ep->bufSize ) { - ret = flush_midi_buffer( ep ); - } - spin_unlock_irqrestore( &ep->lock, flags); - - m->mout.buf[0] = m->mout.buf[1] = m->mout.buf[2] = 0; - m->mout.bufPtr = 0; - - return ret; -} - -/** Write the MIDI message v on the midi device. - * Called by usb_midi_write(); - * Responsible for packaging a MIDI data stream into USB-MIDI packets. - **/ - -static int midi_write( struct usb_mididev *m, int v ) -{ - unsigned long flags; - struct midi_out_endpoint *ep = m->mout.ep; - int ret=0; - unsigned char c = (unsigned char)v; - unsigned char sysrt_buf[4]; - - if ( m->singlebyte != 0 ) { - /** Simple code to handle the single-byte USB-MIDI protocol. */ - spin_lock_irqsave( &ep->lock, flags ); - if ( ep->bufWrPtr+4 > ep->bufSize ) { - ret = flush_midi_buffer( ep ); - if ( !ret ) { - spin_unlock_irqrestore( &ep->lock, flags ); - return ret; - } - } - ep->buf[ep->bufWrPtr++] = (m->mout.cableId<<4) | 0x0f; /* single byte */ - ep->buf[ep->bufWrPtr++] = c; - ep->buf[ep->bufWrPtr++] = 0; - ep->buf[ep->bufWrPtr++] = 0; - if ( ep->bufWrPtr >= ep->bufSize ) { - ret = flush_midi_buffer( ep ); - } - spin_unlock_irqrestore( &ep->lock, flags ); - - return ret; - } - /** Normal USB-MIDI protocol begins here. */ - - if ( c > 0xf7 ) { /* system: Realtime messages */ - /** Realtime messages are written IMMEDIATELY. */ - sysrt_buf[0] = (m->mout.cableId<<4) | 0x0f; - sysrt_buf[1] = c; - sysrt_buf[2] = 0; - sysrt_buf[3] = 0; - spin_lock_irqsave( &ep->lock, flags ); - ret = usb_write( ep, sysrt_buf, 4 ); - spin_unlock_irqrestore( &ep->lock, flags ); - /* m->mout.lastEvent = 0; */ - - return ret; - } - - if ( c >= 0x80 ) { - if ( c < 0xf0 ) { - m->mout.lastEvent = c; - m->mout.isInExclusive = 0; - m->mout.bufRemains = get_remains(c); - } else if ( c == 0xf0 ) { - /* m->mout.lastEvent = 0; */ - m->mout.isInExclusive = 1; - m->mout.bufRemains = get_remains(c); - } else if ( c == 0xf7 && m->mout.isInExclusive == 1 ) { - /* m->mout.lastEvent = 0; */ - m->mout.isInExclusive = 0; - m->mout.bufRemains = 1; - } else if ( c > 0xf0 ) { - /* m->mout.lastEvent = 0; */ - m->mout.isInExclusive = 0; - m->mout.bufRemains = get_remains(c); - } - - } else if ( m->mout.bufRemains == 0 && m->mout.isInExclusive == 0 ) { - if ( m->mout.lastEvent == 0 ) { - return 0; /* discard, waiting for the first event */ - } - /** track status **/ - m->mout.buf[0] = m->mout.lastEvent; - m->mout.bufPtr = 1; - m->mout.bufRemains = get_remains(m->mout.lastEvent)-1; - } - - m->mout.buf[m->mout.bufPtr++] = c; - m->mout.bufRemains--; - if ( m->mout.bufRemains == 0 || m->mout.bufPtr >= 3) { - ret = put_one_midi_event(m); - } - - return ret; -} - - -/* ------------------------------------------------------------------------- */ - -/** Basic operation on /dev/midiXX as registered through struct file_operations. - * - * Basic contract: Used to change the current read/write position in a file. - * On success, the non-negative position is reported. - * On failure, the negative of an error code is reported. - * - * Because a MIDIStream is not a file, all seek operations are doomed to fail. - * - **/ -static loff_t usb_midi_llseek(struct file *file, loff_t offset, int origin) -{ - /** Tell user you cannot seek on a PIPE-like device. **/ - return -ESPIPE; -} - - -/** Basic operation on /dev/midiXX as registered through struct file_operations. - * - * Basic contract: Block until count bytes have been read or an error occurs. - * - **/ - -static ssize_t usb_midi_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) -{ - struct usb_mididev *m = (struct usb_mididev *)file->private_data; - struct midi_in_endpoint *ep = m->min.ep; - ssize_t ret; - DECLARE_WAITQUEUE(wait, current); - - if ( !access_ok(VERIFY_READ, buffer, count) ) { - return -EFAULT; - } - if ( count == 0 ) { - return 0; - } - - add_wait_queue( &ep->wait, &wait ); - ret = 0; - while( count > 0 ) { - int cnt; - int d = (int)count; - - cnt = m->min.bufRemains; - if ( cnt > d ) { - cnt = d; - } - - if ( cnt <= 0 ) { - if ( file->f_flags & O_NONBLOCK ) { - if (!ret) - ret = -EAGAIN; - break; - } - __set_current_state(TASK_INTERRUPTIBLE); - schedule(); - if (signal_pending(current)) { - if(!ret) - ret=-ERESTARTSYS; - break; - } - continue; - } - - { - int i; - unsigned long flags; /* used to synchronize access to the endpoint */ - spin_lock_irqsave( &ep->lock, flags ); - for (i = 0; i < cnt; i++) { - if ( copy_to_user( buffer+i, m->min.buf+m->min.bufRdPtr, 1 ) ) { - if ( !ret ) - ret = -EFAULT; - break; - } - m->min.bufRdPtr = (m->min.bufRdPtr+1)%MIDI_IN_BUFSIZ; - m->min.bufRemains -= 1; - } - spin_unlock_irqrestore( &ep->lock, flags ); - } - - count-=cnt; - buffer+=cnt; - ret+=cnt; - - break; - } - - remove_wait_queue( &ep->wait, &wait ); - set_current_state(TASK_RUNNING); - - return ret; -} - - -/** Basic operation on /dev/midiXX as registered through struct file_operations. - * - * Basic Contract: Take MIDI data byte-by-byte and pass it to - * writeMidi() which packages MIDI data into USB-MIDI stream. - * Then flushMidiData() is called to ensure all bytes have been written - * in a timely fashion. - * - **/ - -static ssize_t usb_midi_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) -{ - struct usb_mididev *m = (struct usb_mididev *)file->private_data; - ssize_t ret; - unsigned long int flags; - - if ( !access_ok(VERIFY_READ, buffer, count) ) { - return -EFAULT; - } - if ( count == 0 ) { - return 0; - } - - ret = 0; - while( count > 0 ) { - unsigned char c; - - if (copy_from_user((unsigned char *)&c, buffer, 1)) { - if ( ret == 0 ) - ret = -EFAULT; - break; - } - if( midi_write(m, (int)c) ) { - if ( ret == 0 ) - ret = -EFAULT; - break; - } - count--; - buffer++; - ret++; - } - - spin_lock_irqsave( &m->mout.ep->lock, flags ); - if ( flush_midi_buffer(m->mout.ep) < 0 ) { - ret = -EFAULT; - } - spin_unlock_irqrestore( &m->mout.ep->lock, flags ); - - return ret; -} - -/** Basic operation on /dev/midiXX as registered through struct file_operations. - * - * Basic contract: Wait (spin) until ready to read or write on the file. - * - **/ -static unsigned int usb_midi_poll(struct file *file, struct poll_table_struct *wait) -{ - struct usb_mididev *m = (struct usb_mididev *)file->private_data; - struct midi_in_endpoint *iep = m->min.ep; - struct midi_out_endpoint *oep = m->mout.ep; - unsigned long flags; - unsigned int mask = 0; - - if ( file->f_mode & FMODE_READ ) { - poll_wait( file, &iep->wait, wait ); - spin_lock_irqsave( &iep->lock, flags ); - if ( m->min.bufRemains > 0 ) - mask |= POLLIN | POLLRDNORM; - spin_unlock_irqrestore( &iep->lock, flags ); - } - - if ( file->f_mode & FMODE_WRITE ) { - poll_wait( file, &oep->wait, wait ); - spin_lock_irqsave( &oep->lock, flags ); - if ( oep->bufWrPtr < oep->bufSize ) - mask |= POLLOUT | POLLWRNORM; - spin_unlock_irqrestore( &oep->lock, flags ); - } - - return mask; -} - - -/** Basic operation on /dev/midiXX as registered through struct file_operations. - * - * Basic contract: This is always the first operation performed on the - * device node. If no method is defined, the open succeeds without any - * notification given to the module. - * - **/ - -static int usb_midi_open(struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - DECLARE_WAITQUEUE(wait, current); - struct usb_midi_state *s; - struct usb_mididev *m; - unsigned long flags; - int succeed = 0; - -#if 0 - printk(KERN_INFO "usb-midi: Open minor= %d.\n", minor); -#endif - - for(;;) { - down(&open_sem); - list_for_each_entry(s, &mididevs, mididev) { - list_for_each_entry(m, &s->midiDevList, list) { - if ( !((m->dev_midi ^ minor) & ~0xf) ) - goto device_found; - } - } - up(&open_sem); - return -ENODEV; - - device_found: - if ( !s->usbdev ) { - up(&open_sem); - return -EIO; - } - if ( !(m->open_mode & file->f_mode) ) { - break; - } - if ( file->f_flags & O_NONBLOCK ) { - up(&open_sem); - return -EBUSY; - } - __set_current_state(TASK_INTERRUPTIBLE); - add_wait_queue( &open_wait, &wait ); - up(&open_sem); - schedule(); - remove_wait_queue( &open_wait, &wait ); - if ( signal_pending(current) ) { - return -ERESTARTSYS; - } - } - - file->private_data = m; - spin_lock_irqsave( &s->lock, flags ); - - if ( !(m->open_mode & (FMODE_READ | FMODE_WRITE)) ) { - //FIXME: intented semantics unclear here - m->min.bufRdPtr = 0; - m->min.bufWrPtr = 0; - m->min.bufRemains = 0; - spin_lock_init(&m->min.ep->lock); - - m->mout.bufPtr = 0; - m->mout.bufRemains = 0; - m->mout.isInExclusive = 0; - m->mout.lastEvent = 0; - spin_lock_init(&m->mout.ep->lock); - } - - if ( (file->f_mode & FMODE_READ) && m->min.ep != NULL ) { - unsigned long int flagsep; - spin_lock_irqsave( &m->min.ep->lock, flagsep ); - m->min.ep->cables[m->min.cableId] = m; - m->min.ep->readers += 1; - m->min.bufRdPtr = 0; - m->min.bufWrPtr = 0; - m->min.bufRemains = 0; - spin_unlock_irqrestore( &m->min.ep->lock, flagsep ); - - if ( !(m->min.ep->urbSubmitted)) { - - /* urb->dev must be reinitialized on 2.4.x kernels */ - m->min.ep->urb->dev = m->min.ep->usbdev; - - if ( usb_submit_urb(m->min.ep->urb, GFP_ATOMIC) ) { - printk(KERN_ERR "usbmidi: Cannot submit urb for MIDI-IN\n"); - } - m->min.ep->urbSubmitted = 1; - } - m->open_mode |= FMODE_READ; - succeed = 1; - } - - if ( (file->f_mode & FMODE_WRITE) && m->mout.ep != NULL ) { - m->mout.bufPtr = 0; - m->mout.bufRemains = 0; - m->mout.isInExclusive = 0; - m->mout.lastEvent = 0; - m->open_mode |= FMODE_WRITE; - succeed = 1; - } - - spin_unlock_irqrestore( &s->lock, flags ); - - s->count++; - up(&open_sem); - - /** Changed to prevent extra increments to USE_COUNT. **/ - if (!succeed) { - return -EBUSY; - } - -#if 0 - printk(KERN_INFO "usb-midi: Open Succeeded. minor= %d.\n", minor); -#endif - - return nonseekable_open(inode, file); /** Success. **/ -} - - -/** Basic operation on /dev/midiXX as registered through struct file_operations. - * - * Basic contract: Close an opened file and deallocate anything we allocated. - * Like open(), this can be missing. If open set file->private_data, - * release() must clear it. - * - **/ - -static int usb_midi_release(struct inode *inode, struct file *file) -{ - struct usb_mididev *m = (struct usb_mididev *)file->private_data; - struct usb_midi_state *s = (struct usb_midi_state *)m->midi; - -#if 0 - printk(KERN_INFO "usb-midi: Close.\n"); -#endif - - down(&open_sem); - - if ( m->open_mode & FMODE_WRITE ) { - m->open_mode &= ~FMODE_WRITE; - usb_kill_urb( m->mout.ep->urb ); - } - - if ( m->open_mode & FMODE_READ ) { - unsigned long int flagsep; - spin_lock_irqsave( &m->min.ep->lock, flagsep ); - m->min.ep->cables[m->min.cableId] = NULL; // discard cable - m->min.ep->readers -= 1; - m->open_mode &= ~FMODE_READ; - if ( m->min.ep->readers == 0 && - m->min.ep->urbSubmitted ) { - m->min.ep->urbSubmitted = 0; - usb_kill_urb(m->min.ep->urb); - } - spin_unlock_irqrestore( &m->min.ep->lock, flagsep ); - } - - s->count--; - - up(&open_sem); - wake_up(&open_wait); - - file->private_data = NULL; - return 0; -} - -static struct file_operations usb_midi_fops = { - .owner = THIS_MODULE, - .llseek = usb_midi_llseek, - .read = usb_midi_read, - .write = usb_midi_write, - .poll = usb_midi_poll, - .open = usb_midi_open, - .release = usb_midi_release, -}; - -/* ------------------------------------------------------------------------- */ - -/** Returns filled midi_in_endpoint structure or null on failure. - * - * Parameters: - * d - a usb_device - * endPoint - An usb endpoint in the range 0 to 15. - * Called by allocUsbMidiDev(); - * - **/ - -static struct midi_in_endpoint *alloc_midi_in_endpoint( struct usb_device *d, int endPoint ) -{ - struct midi_in_endpoint *ep; - int bufSize; - int pipe; - - endPoint &= 0x0f; /* Silently force endPoint to lie in range 0 to 15. */ - - pipe = usb_rcvbulkpipe( d, endPoint ); - bufSize = usb_maxpacket( d, pipe, 0 ); - /* usb_pipein() = ! usb_pipeout() = true for an in Endpoint */ - - ep = (struct midi_in_endpoint *)kmalloc(sizeof(struct midi_in_endpoint), GFP_KERNEL); - if ( !ep ) { - printk(KERN_ERR "usbmidi: no memory for midi in-endpoint\n"); - return NULL; - } - memset( ep, 0, sizeof(struct midi_in_endpoint) ); -// this sets cables[] and readers to 0, too. -// for (i=0; i<16; i++) ep->cables[i] = 0; // discard cable -// ep->readers = 0; - - ep->endpoint = endPoint; - - ep->recvBuf = (unsigned char *)kmalloc(sizeof(unsigned char)*(bufSize), GFP_KERNEL); - if ( !ep->recvBuf ) { - printk(KERN_ERR "usbmidi: no memory for midi in-endpoint buffer\n"); - kfree(ep); - return NULL; - } - - ep->urb = usb_alloc_urb(0, GFP_KERNEL); /* no ISO */ - if ( !ep->urb ) { - printk(KERN_ERR "usbmidi: no memory for midi in-endpoint urb\n"); - kfree(ep->recvBuf); - kfree(ep); - return NULL; - } - usb_fill_bulk_urb( ep->urb, d, - usb_rcvbulkpipe(d, endPoint), - (unsigned char *)ep->recvBuf, bufSize, - usb_bulk_read, ep ); - - /* ep->bufRdPtr = 0; */ - /* ep->bufWrPtr = 0; */ - /* ep->bufRemains = 0; */ - /* ep->urbSubmitted = 0; */ - ep->recvBufSize = bufSize; - - init_waitqueue_head(&ep->wait); - - return ep; -} - -static int remove_midi_in_endpoint( struct midi_in_endpoint *min ) -{ - usb_kill_urb( min->urb ); - usb_free_urb( min->urb ); - kfree( min->recvBuf ); - kfree( min ); - - return 0; -} - -/** Returns filled midi_out_endpoint structure or null on failure. - * - * Parameters: - * d - a usb_device - * endPoint - An usb endpoint in the range 0 to 15. - * Called by allocUsbMidiDev(); - * - **/ -static struct midi_out_endpoint *alloc_midi_out_endpoint( struct usb_device *d, int endPoint ) -{ - struct midi_out_endpoint *ep = NULL; - int pipe; - int bufSize; - - endPoint &= 0x0f; - pipe = usb_sndbulkpipe( d, endPoint ); - bufSize = usb_maxpacket( d, pipe, 1 ); - - ep = (struct midi_out_endpoint *)kmalloc(sizeof(struct midi_out_endpoint), GFP_KERNEL); - if ( !ep ) { - printk(KERN_ERR "usbmidi: no memory for midi out-endpoint\n"); - return NULL; - } - memset( ep, 0, sizeof(struct midi_out_endpoint) ); - - ep->endpoint = endPoint; - ep->buf = (unsigned char *)kmalloc(sizeof(unsigned char)*bufSize, GFP_KERNEL); - if ( !ep->buf ) { - printk(KERN_ERR "usbmidi: no memory for midi out-endpoint buffer\n"); - kfree(ep); - return NULL; - } - - ep->urb = usb_alloc_urb(0, GFP_KERNEL); /* no ISO */ - if ( !ep->urb ) { - printk(KERN_ERR "usbmidi: no memory for midi out-endpoint urb\n"); - kfree(ep->buf); - kfree(ep); - return NULL; - } - - ep->bufSize = bufSize; - /* ep->bufWrPtr = 0; */ - - init_waitqueue_head(&ep->wait); - - return ep; -} - - -static int remove_midi_out_endpoint( struct midi_out_endpoint *mout ) -{ - usb_kill_urb( mout->urb ); - usb_free_urb( mout->urb ); - kfree( mout->buf ); - kfree( mout ); - - return 0; -} - - -/** Returns a filled usb_mididev structure, registered as a Linux MIDI device. - * - * Returns null if memory is not available or the device cannot be registered. - * Called by allocUsbMidiDev(); - * - **/ -static struct usb_mididev *allocMidiDev( - struct usb_midi_state *s, - struct midi_in_endpoint *min, - struct midi_out_endpoint *mout, - int inCableId, - int outCableId ) -{ - struct usb_mididev *m; - - m = (struct usb_mididev *)kmalloc(sizeof(struct usb_mididev), GFP_KERNEL); - if (!m) { - printk(KERN_ERR "usbmidi: no memory for midi device\n"); - return NULL; - } - - memset(m, 0, sizeof(struct usb_mididev)); - - if ((m->dev_midi = register_sound_midi(&usb_midi_fops, -1)) < 0) { - printk(KERN_ERR "usbmidi: cannot register midi device\n"); - kfree(m); - return NULL; - } - - m->midi = s; - /* m->open_mode = 0; */ - - if ( min ) { - m->min.ep = min; - m->min.ep->usbdev = s->usbdev; - m->min.cableId = inCableId; - } - /* m->min.bufPtr = 0; */ - /* m->min.bufRemains = 0; */ - - if ( mout ) { - m->mout.ep = mout; - m->mout.ep->usbdev = s->usbdev; - m->mout.cableId = outCableId; - } - /* m->mout.bufPtr = 0; */ - /* m->mout.bufRemains = 0; */ - /* m->mout.isInExclusive = 0; */ - /* m->mout.lastEvent = 0; */ - - m->singlebyte = singlebyte; - - return m; -} - - -static void release_midi_device( struct usb_midi_state *s ) -{ - struct usb_mididev *m; - struct midi_in_endpoint *min; - struct midi_out_endpoint *mout; - - if ( s->count > 0 ) { - up(&open_sem); - return; - } - up( &open_sem ); - wake_up( &open_wait ); - - while(!list_empty(&s->inEndpointList)) { - min = list_entry(s->inEndpointList.next, struct midi_in_endpoint, list); - list_del(&min->list); - remove_midi_in_endpoint(min); - } - - while(!list_empty(&s->outEndpointList)) { - mout = list_entry(s->outEndpointList.next, struct midi_out_endpoint, list); - list_del(&mout->list); - remove_midi_out_endpoint(mout); - } - - while(!list_empty(&s->midiDevList)) { - m = list_entry(s->midiDevList.next, struct usb_mididev, list); - list_del(&m->list); - kfree(m); - } - - kfree(s); - - return; -} - - -/* ------------------------------------------------------------------------- */ - -/** Utility routine to find a descriptor in a dump of many descriptors. - * Returns start of descriptor or NULL if not found. - * descStart pointer to list of interfaces. - * descLength length (in bytes) of dump - * after (ignored if NULL) this routine returns only descriptors after "after" - * dtype (mandatory) The descriptor type. - * iface (ignored if -1) returns descriptor at/following given interface - * altSetting (ignored if -1) returns descriptor at/following given altSetting - * - * - * Called by parseDescriptor(), find_csinterface_descriptor(); - * - */ -static void *find_descriptor( void *descStart, unsigned int descLength, void *after, unsigned char dtype, int iface, int altSetting ) -{ - unsigned char *p, *end, *next; - int interfaceNumber = -1, altSet = -1; - - p = descStart; - end = p + descLength; - for( ; p < end; ) { - if ( p[0] < 2 ) - return NULL; - next = p + p[0]; - if ( next > end ) - return NULL; - if ( p[1] == USB_DT_INTERFACE ) { - if ( p[0] < USB_DT_INTERFACE_SIZE ) - return NULL; - interfaceNumber = p[2]; - altSet = p[3]; - } - if ( p[1] == dtype && - ( !after || ( p > (unsigned char *)after) ) && - ( ( iface == -1) || (iface == interfaceNumber) ) && - ( (altSetting == -1) || (altSetting == altSet) )) { - return p; - } - p = next; - } - return NULL; -} - -/** Utility to find a class-specific interface descriptor. - * dsubtype is a descriptor subtype - * Called by parseDescriptor(); - **/ -static void *find_csinterface_descriptor(void *descStart, unsigned int descLength, void *after, u8 dsubtype, int iface, int altSetting) -{ - unsigned char *p; - - p = find_descriptor( descStart, descLength, after, USB_DT_CS_INTERFACE, iface, altSetting ); - while ( p ) { - if ( p[0] >= 3 && p[2] == dsubtype ) - return p; - p = find_descriptor( descStart, descLength, p, USB_DT_CS_INTERFACE, - iface, altSetting ); - } - return NULL; -} - - -/** The magic of making a new usb_midi_device from config happens here. - * - * The caller is responsible for free-ing this return value (if not NULL). - * - **/ -static struct usb_midi_device *parse_descriptor( struct usb_device *d, unsigned char *buffer, int bufSize, unsigned int ifnum , unsigned int altSetting, int quirks) -{ - struct usb_midi_device *u; - unsigned char *p1; - unsigned char *p2; - unsigned char *next; - int iep, oep; - int length; - unsigned long longBits; - int pins, nbytes, offset, shift, jack; -#ifdef HAVE_JACK_STRINGS - /** Jacks can have associated names. **/ - unsigned char jack2string[256]; -#endif - - u = NULL; - /* find audiocontrol interface */ - p1 = find_csinterface_descriptor( buffer, bufSize, NULL, - MS_HEADER, ifnum, altSetting); - - if ( !p1 ) { - goto error_end; - } - - if ( p1[0] < MS_HEADER_LENGTH ) { - goto error_end; - } - - /* Assume success. Since the device corresponds to USB-MIDI spec, we assume - that the rest of the USB 2.0 spec is obeyed. */ - - u = (struct usb_midi_device *)kmalloc( sizeof(struct usb_midi_device), GFP_KERNEL ); - if ( !u ) { - return NULL; - } - u->deviceName = NULL; - u->idVendor = le16_to_cpu(d->descriptor.idVendor); - u->idProduct = le16_to_cpu(d->descriptor.idProduct); - u->interface = ifnum; - u->altSetting = altSetting; - u->in[0].endpoint = -1; - u->in[0].cableId = -1; - u->out[0].endpoint = -1; - u->out[0].cableId = -1; - - - printk(KERN_INFO "usb-midi: Found MIDIStreaming device corresponding to Release %d.%02d of spec.\n", - (p1[4] >> 4) * 10 + (p1[4] & 0x0f ), - (p1[3] >> 4) * 10 + (p1[3] & 0x0f ) - ); - - length = p1[5] | (p1[6] << 8); - -#ifdef HAVE_JACK_STRINGS - memset(jack2string, 0, sizeof(unsigned char) * 256); -#endif - - length -= p1[0]; - for (p2 = p1 + p1[0]; length > 0; p2 = next) { - next = p2 + p2[0]; - length -= p2[0]; - - if (p2[0] < 2 ) - break; - if (p2[1] != USB_DT_CS_INTERFACE) - break; - if (p2[2] == MIDI_IN_JACK && p2[0] >= 6 ) { - jack = p2[4]; -#ifdef HAVE_JACK_STRINGS - jack2string[jack] = p2[5]; -#endif - printk(KERN_INFO "usb-midi: Found IN Jack 0x%02x %s\n", - jack, (p2[3] == EMBEDDED_JACK)?"EMBEDDED":"EXTERNAL" ); - } else if ( p2[2] == MIDI_OUT_JACK && p2[0] >= 6) { - pins = p2[5]; - if ( p2[0] < (6 + 2 * pins) ) - continue; - jack = p2[4]; -#ifdef HAVE_JACK_STRINGS - jack2string[jack] = p2[5 + 2 * pins]; -#endif - printk(KERN_INFO "usb-midi: Found OUT Jack 0x%02x %s, %d pins\n", - jack, (p2[3] == EMBEDDED_JACK)?"EMBEDDED":"EXTERNAL", pins ); - } else if ( p2[2] == ELEMENT_DESCRIPTOR && p2[0] >= 10) { - pins = p2[4]; - if ( p2[0] < (9 + 2 * pins ) ) - continue; - nbytes = p2[8 + 2 * pins ]; - if ( p2[0] < (10 + 2 * pins + nbytes) ) - continue; - longBits = 0L; - for ( offset = 0, shift = 0; offset < nbytes && offset < 8; offset ++, shift += 8) { - longBits |= ((long)(p2[9 + 2 * pins + offset])) << shift; - } - jack = p2[3]; -#ifdef HAVE_JACK_STRINGS - jack2string[jack] = p2[9 + 2 * pins + nbytes]; -#endif - printk(KERN_INFO "usb-midi: Found ELEMENT 0x%02x, %d/%d pins in/out, bits: 0x%016lx\n", - jack, pins, (int)(p2[5 + 2 * pins]), (long)longBits ); - } else { - } - } - - iep=0; - oep=0; - - if (quirks==0) { - /* MIDISTREAM */ - p2 = NULL; - for (p1 = find_descriptor(buffer, bufSize, NULL, USB_DT_ENDPOINT, - ifnum, altSetting ); p1; p1 = next ) { - next = find_descriptor(buffer, bufSize, p1, USB_DT_ENDPOINT, - ifnum, altSetting ); - p2 = find_descriptor(buffer, bufSize, p1, USB_DT_CS_ENDPOINT, - ifnum, altSetting ); - - if ( p2 && next && ( p2 > next ) ) - p2 = NULL; - - if ( p1[0] < 9 || !p2 || p2[0] < 4 ) - continue; - - if ( (p1[2] & 0x80) == 0x80 ) { - if ( iep < 15 ) { - pins = p2[3]; /* not pins -- actually "cables" */ - if ( pins > 16 ) - pins = 16; - u->in[iep].endpoint = p1[2]; - u->in[iep].cableId = ( 1 << pins ) - 1; - if ( u->in[iep].cableId ) - iep ++; - if ( iep < 15 ) { - u->in[iep].endpoint = -1; - u->in[iep].cableId = -1; - } - } - } else { - if ( oep < 15 ) { - pins = p2[3]; /* not pins -- actually "cables" */ - if ( pins > 16 ) - pins = 16; - u->out[oep].endpoint = p1[2]; - u->out[oep].cableId = ( 1 << pins ) - 1; - if ( u->out[oep].cableId ) - oep ++; - if ( oep < 15 ) { - u->out[oep].endpoint = -1; - u->out[oep].cableId = -1; - } - } - } - - } - } else if (quirks==1) { - /* YAMAHA quirks */ - for (p1 = find_descriptor(buffer, bufSize, NULL, USB_DT_ENDPOINT, - ifnum, altSetting ); p1; p1 = next ) { - next = find_descriptor(buffer, bufSize, p1, USB_DT_ENDPOINT, - ifnum, altSetting ); - - if ( p1[0] < 7 ) - continue; - - if ( (p1[2] & 0x80) == 0x80 ) { - if ( iep < 15 ) { - pins = iep+1; - if ( pins > 16 ) - pins = 16; - u->in[iep].endpoint = p1[2]; - u->in[iep].cableId = ( 1 << pins ) - 1; - if ( u->in[iep].cableId ) - iep ++; - if ( iep < 15 ) { - u->in[iep].endpoint = -1; - u->in[iep].cableId = -1; - } - } - } else { - if ( oep < 15 ) { - pins = oep+1; - u->out[oep].endpoint = p1[2]; - u->out[oep].cableId = ( 1 << pins ) - 1; - if ( u->out[oep].cableId ) - oep ++; - if ( oep < 15 ) { - u->out[oep].endpoint = -1; - u->out[oep].cableId = -1; - } - } - } - - } - } - - if ( !iep && ! oep ) { - goto error_end; - } - - return u; - -error_end: - kfree(u); - return NULL; -} - -/* ------------------------------------------------------------------------- */ - -/** Returns number between 0 and 16. - * - **/ -static int on_bits( unsigned short v ) -{ - int i; - int ret=0; - - for ( i=0 ; i<16 ; i++ ) { - if ( v & (1<<i) ) - ret++; - } - - return ret; -} - - -/** USB-device will be interrogated for altSetting. - * - * Returns negative on error. - * Called by allocUsbMidiDev(); - * - **/ - -static int get_alt_setting( struct usb_device *d, int ifnum ) -{ - int alts, alt=0; - struct usb_interface *iface; - struct usb_host_interface *interface; - struct usb_endpoint_descriptor *ep; - int epin, epout; - int i; - - iface = usb_ifnum_to_if( d, ifnum ); - alts = iface->num_altsetting; - - for ( alt=0 ; alt<alts ; alt++ ) { - interface = &iface->altsetting[alt]; - epin = -1; - epout = -1; - - for ( i=0 ; i<interface->desc.bNumEndpoints ; i++ ) { - ep = &interface->endpoint[i].desc; - if ( (ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK ) { - continue; - } - if ( (ep->bEndpointAddress & USB_DIR_IN) && epin < 0 ) { - epin = i; - } else if ( epout < 0 ) { - epout = i; - } - if ( epin >= 0 && epout >= 0 ) { - return interface->desc.bAlternateSetting; - } - } - } - - return -ENODEV; -} - - -/* ------------------------------------------------------------------------- */ - - -/** Returns 0 if successful in allocating and registering internal structures. - * Returns negative on failure. - * Calls allocMidiDev which additionally registers /dev/midiXX devices. - * Writes messages on success to indicate which /dev/midiXX is which physical - * endpoint. - * - **/ -static int alloc_usb_midi_device( struct usb_device *d, struct usb_midi_state *s, struct usb_midi_device *u ) -{ - struct usb_mididev **mdevs=NULL; - struct midi_in_endpoint *mins[15], *min; - struct midi_out_endpoint *mouts[15], *mout; - int inDevs=0, outDevs=0; - int inEndpoints=0, outEndpoints=0; - int inEndpoint, outEndpoint; - int inCableId, outCableId; - int i; - int devices = 0; - int alt = 0; - - /* Obtain altSetting or die.. */ - alt = u->altSetting; - if ( alt < 0 ) { - alt = get_alt_setting( d, u->interface ); - } - if ( alt < 0 ) - return -ENXIO; - - /* Configure interface */ - if ( usb_set_interface( d, u->interface, alt ) < 0 ) { - return -ENXIO; - } - - for ( i = 0 ; i < 15 ; i++ ) { - mins[i] = NULL; - mouts[i] = NULL; - } - - /* Begin Allocation */ - while( inEndpoints < 15 - && inDevs < maxdevices - && u->in[inEndpoints].cableId >= 0 ) { - inDevs += on_bits((unsigned short)u->in[inEndpoints].cableId); - mins[inEndpoints] = alloc_midi_in_endpoint( d, u->in[inEndpoints].endpoint ); - if ( mins[inEndpoints] == NULL ) - goto error_end; - inEndpoints++; - } - - while( outEndpoints < 15 - && outDevs < maxdevices - && u->out[outEndpoints].cableId >= 0 ) { - outDevs += on_bits((unsigned short)u->out[outEndpoints].cableId); - mouts[outEndpoints] = alloc_midi_out_endpoint( d, u->out[outEndpoints].endpoint ); - if ( mouts[outEndpoints] == NULL ) - goto error_end; - outEndpoints++; - } - - devices = inDevs > outDevs ? inDevs : outDevs; - devices = maxdevices > devices ? devices : maxdevices; - - /* obtain space for device name (iProduct) if not known. */ - if ( ! u->deviceName ) { - mdevs = (struct usb_mididev **) - kmalloc(sizeof(struct usb_mididevs *)*devices - + sizeof(char) * 256, GFP_KERNEL); - } else { - mdevs = (struct usb_mididev **) - kmalloc(sizeof(struct usb_mididevs *)*devices, GFP_KERNEL); - } - - if ( !mdevs ) { - /* devices = 0; */ - /* mdevs = NULL; */ - goto error_end; - } - for ( i=0 ; i<devices ; i++ ) { - mdevs[i] = NULL; - } - - /* obtain device name (iProduct) if not known. */ - if ( ! u->deviceName ) { - u->deviceName = (char *) (mdevs + devices); - if ( ! d->have_langid && d->descriptor.iProduct) { - alt = usb_get_string(d, 0, 0, u->deviceName, 250); - if (alt < 0) { - printk(KERN_INFO "error getting string descriptor 0 (error=%d)\n", alt); - } else if (u->deviceName[0] < 4) { - printk(KERN_INFO "string descriptor 0 too short (length = %d)\n", alt); - } else { - printk(KERN_INFO "string descriptor 0 found (length = %d)\n", alt); - for(; alt >= 4; alt -= 2) { - i = u->deviceName[alt-2] | (u->deviceName[alt-1]<< 8); - printk(KERN_INFO "usb-midi: langid(%d) 0x%04x\n", - (alt-4) >> 1, i); - if ( ( ( i ^ ulangid ) & 0xff ) == 0 ) { - d->have_langid = 1; - d->string_langid = i; - printk(KERN_INFO "usb-midi: langid(match) 0x%04x\n", i); - if ( i == ulangid ) - break; - } - } - } - } - u->deviceName[0] = (char) 0; - if (d->descriptor.iProduct) { - printk(KERN_INFO "usb-midi: fetchString(%d)\n", d->descriptor.iProduct); - alt = usb_string(d, d->descriptor.iProduct, u->deviceName, 255); - if( alt < 0 ) { - u->deviceName[0] = (char) 0; - } - printk(KERN_INFO "usb-midi: fetchString = %d\n", alt); - } - /* Failsafe */ - if ( !u->deviceName[0] ) { - if (le16_to_cpu(d->descriptor.idVendor) == USB_VENDOR_ID_ROLAND ) { - strcpy(u->deviceName, "Unknown Roland"); - } else if (le16_to_cpu(d->descriptor.idVendor) == USB_VENDOR_ID_STEINBERG ) { - strcpy(u->deviceName, "Unknown Steinberg"); - } else if (le16_to_cpu(d->descriptor.idVendor) == USB_VENDOR_ID_YAMAHA ) { - strcpy(u->deviceName, "Unknown Yamaha"); - } else { - strcpy(u->deviceName, "Unknown"); - } - } - } - - inEndpoint = 0; inCableId = -1; - outEndpoint = 0; outCableId = -1; - - for ( i=0 ; i<devices ; i++ ) { - for ( inCableId ++ ; - inEndpoint <15 - && mins[inEndpoint] - && !(u->in[inEndpoint].cableId & (1<<inCableId)) ; - inCableId++ ) { - if ( inCableId >= 16 ) { - inEndpoint ++; - inCableId = 0; - } - } - min = mins[inEndpoint]; - for ( outCableId ++ ; - outEndpoint <15 - && mouts[outEndpoint] - && !(u->out[outEndpoint].cableId & (1<<outCableId)) ; - outCableId++ ) { - if ( outCableId >= 16 ) { - outEndpoint ++; - outCableId = 0; - } - } - mout = mouts[outEndpoint]; - - mdevs[i] = allocMidiDev( s, min, mout, inCableId, outCableId ); - if ( mdevs[i] == NULL ) - goto error_end; - - } - - /* Success! */ - for ( i=0 ; i<devices ; i++ ) { - list_add_tail( &mdevs[i]->list, &s->midiDevList ); - } - for ( i=0 ; i<inEndpoints ; i++ ) { - list_add_tail( &mins[i]->list, &s->inEndpointList ); - } - for ( i=0 ; i<outEndpoints ; i++ ) { - list_add_tail( &mouts[i]->list, &s->outEndpointList ); - } - - printk(KERN_INFO "usbmidi: found [ %s ] (0x%04x:0x%04x), attached:\n", u->deviceName, u->idVendor, u->idProduct ); - for ( i=0 ; i<devices ; i++ ) { - int dm = (mdevs[i]->dev_midi-2)>>4; - if ( mdevs[i]->mout.ep != NULL && mdevs[i]->min.ep != NULL ) { - printk(KERN_INFO "usbmidi: /dev/midi%02d: in (ep:%02x cid:%2d bufsiz:%2d) out (ep:%02x cid:%2d bufsiz:%2d)\n", - dm, - mdevs[i]->min.ep->endpoint|USB_DIR_IN, mdevs[i]->min.cableId, mdevs[i]->min.ep->recvBufSize, - mdevs[i]->mout.ep->endpoint, mdevs[i]->mout.cableId, mdevs[i]->mout.ep->bufSize); - } else if ( mdevs[i]->min.ep != NULL ) { - printk(KERN_INFO "usbmidi: /dev/midi%02d: in (ep:%02x cid:%2d bufsiz:%02d)\n", - dm, - mdevs[i]->min.ep->endpoint|USB_DIR_IN, mdevs[i]->min.cableId, mdevs[i]->min.ep->recvBufSize); - } else if ( mdevs[i]->mout.ep != NULL ) { - printk(KERN_INFO "usbmidi: /dev/midi%02d: out (ep:%02x cid:%2d bufsiz:%02d)\n", - dm, - mdevs[i]->mout.ep->endpoint, mdevs[i]->mout.cableId, mdevs[i]->mout.ep->bufSize); - } - } - - kfree(mdevs); - return 0; - - error_end: - if ( mdevs != NULL ) { - for ( i=0 ; i<devices ; i++ ) { - if ( mdevs[i] != NULL ) { - unregister_sound_midi( mdevs[i]->dev_midi ); - kfree(mdevs[i]); - } - } - kfree(mdevs); - } - - for ( i=0 ; i<15 ; i++ ) { - if ( mins[i] != NULL ) { - remove_midi_in_endpoint( mins[i] ); - } - if ( mouts[i] != NULL ) { - remove_midi_out_endpoint( mouts[i] ); - } - } - - return -ENOMEM; -} - -/* ------------------------------------------------------------------------- */ - -/** Attempt to scan YAMAHA's device descriptor and detect correct values of - * them. - * Return 0 on succes, negative on failure. - * Called by usb_midi_probe(); - **/ - -static int detect_yamaha_device( struct usb_device *d, - struct usb_interface *iface, unsigned int ifnum, - struct usb_midi_state *s) -{ - struct usb_host_interface *interface; - struct usb_midi_device *u; - unsigned char *buffer; - int bufSize; - int i; - int alts=-1; - int ret; - - if (le16_to_cpu(d->descriptor.idVendor) != USB_VENDOR_ID_YAMAHA) { - return -EINVAL; - } - - for ( i=0 ; i < iface->num_altsetting; i++ ) { - interface = iface->altsetting + i; - - if ( interface->desc.bInterfaceClass != 255 || - interface->desc.bInterfaceSubClass != 0 ) - continue; - alts = interface->desc.bAlternateSetting; - } - if ( alts == -1 ) { - return -EINVAL; - } - - printk(KERN_INFO "usb-midi: Found YAMAHA USB-MIDI device on dev %04x:%04x, iface %d\n", - le16_to_cpu(d->descriptor.idVendor), - le16_to_cpu(d->descriptor.idProduct), ifnum); - - i = d->actconfig - d->config; - buffer = d->rawdescriptors[i]; - bufSize = le16_to_cpu(d->actconfig->desc.wTotalLength); - - u = parse_descriptor( d, buffer, bufSize, ifnum, alts, 1); - if ( u == NULL ) { - return -EINVAL; - } - - ret = alloc_usb_midi_device( d, s, u ); - - kfree(u); - - return ret; -} - - -/** Scan table of known devices which are only partially compliant with - * the MIDIStreaming specification. - * Called by usb_midi_probe(); - * - **/ - -static int detect_vendor_specific_device( struct usb_device *d, unsigned int ifnum, struct usb_midi_state *s ) -{ - struct usb_midi_device *u; - int i; - int ret = -ENXIO; - - for ( i=0; i<VENDOR_SPECIFIC_USB_MIDI_DEVICES ; i++ ) { - u=&(usb_midi_devices[i]); - - if ( le16_to_cpu(d->descriptor.idVendor) != u->idVendor || - le16_to_cpu(d->descriptor.idProduct) != u->idProduct || - ifnum != u->interface ) - continue; - - ret = alloc_usb_midi_device( d, s, u ); - break; - } - - return ret; -} - - -/** Attempt to match any config of an interface to a MIDISTREAMING interface. - * Returns 0 on success, negative on failure. - * Called by usb_midi_probe(); - **/ -static int detect_midi_subclass(struct usb_device *d, - struct usb_interface *iface, unsigned int ifnum, - struct usb_midi_state *s) -{ - struct usb_host_interface *interface; - struct usb_midi_device *u; - unsigned char *buffer; - int bufSize; - int i; - int alts=-1; - int ret; - - for ( i=0 ; i < iface->num_altsetting; i++ ) { - interface = iface->altsetting + i; - - if ( interface->desc.bInterfaceClass != USB_CLASS_AUDIO || - interface->desc.bInterfaceSubClass != USB_SUBCLASS_MIDISTREAMING ) - continue; - alts = interface->desc.bAlternateSetting; - } - if ( alts == -1 ) { - return -EINVAL; - } - - printk(KERN_INFO "usb-midi: Found MIDISTREAMING on dev %04x:%04x, iface %d\n", - le16_to_cpu(d->descriptor.idVendor), - le16_to_cpu(d->descriptor.idProduct), ifnum); - - - /* From USB Spec v2.0, Section 9.5. - If the class or vendor specific descriptors use the same format - as standard descriptors (e.g., start with a length byte and - followed by a type byte), they must be returned interleaved with - standard descriptors in the configuration information returned by - a GetDescriptor(Configuration) request. In this case, the class - or vendor-specific descriptors must follow a related standard - descriptor they modify or extend. - */ - - i = d->actconfig - d->config; - buffer = d->rawdescriptors[i]; - bufSize = le16_to_cpu(d->actconfig->desc.wTotalLength); - - u = parse_descriptor( d, buffer, bufSize, ifnum, alts, 0); - if ( u == NULL ) { - return -EINVAL; - } - - ret = alloc_usb_midi_device( d, s, u ); - - kfree(u); - - return ret; -} - - -/** When user has requested a specific device, match it exactly. - * - * Uses uvendor, uproduct, uinterface, ualt, umin, umout and ucable. - * Called by usb_midi_probe(); - * - **/ -static int detect_by_hand(struct usb_device *d, unsigned int ifnum, struct usb_midi_state *s) -{ - struct usb_midi_device u; - - if ( le16_to_cpu(d->descriptor.idVendor) != uvendor || - le16_to_cpu(d->descriptor.idProduct) != uproduct || - ifnum != uinterface ) { - return -EINVAL; - } - - if ( ualt < 0 ) - ualt = -1; - - if ( umin < 0 || umin > 15 ) - umin = 0x01 | USB_DIR_IN; - if ( umout < 0 || umout > 15 ) - umout = 0x01; - if ( ucable < 0 || ucable > 15 ) - ucable = 0; - - u.deviceName = NULL; /* A flag for alloc_usb_midi_device to get device - name from device. */ - u.idVendor = uvendor; - u.idProduct = uproduct; - u.interface = uinterface; - u.altSetting = ualt; - - u.in[0].endpoint = umin; - u.in[0].cableId = (1<<ucable); - - u.out[0].endpoint = umout; - u.out[0].cableId = (1<<ucable); - - return alloc_usb_midi_device( d, s, &u ); -} - - - -/* ------------------------------------------------------------------------- */ - -static int usb_midi_probe(struct usb_interface *intf, - const struct usb_device_id *id) -{ - struct usb_midi_state *s; - struct usb_device *dev = interface_to_usbdev(intf); - int ifnum = intf->cur_altsetting->desc.bInterfaceNumber; - - s = (struct usb_midi_state *)kmalloc(sizeof(struct usb_midi_state), GFP_KERNEL); - if ( !s ) - return -ENOMEM; - - memset( s, 0, sizeof(struct usb_midi_state) ); - INIT_LIST_HEAD(&s->midiDevList); - INIT_LIST_HEAD(&s->inEndpointList); - INIT_LIST_HEAD(&s->outEndpointList); - s->usbdev = dev; - s->count = 0; - spin_lock_init(&s->lock); - - if ( - detect_by_hand( dev, ifnum, s ) && - detect_midi_subclass( dev, intf, ifnum, s ) && - detect_vendor_specific_device( dev, ifnum, s ) && - detect_yamaha_device( dev, intf, ifnum, s) ) { - kfree(s); - return -EIO; - } - - down(&open_sem); - list_add_tail(&s->mididev, &mididevs); - up(&open_sem); - - usb_set_intfdata (intf, s); - return 0; -} - - -static void usb_midi_disconnect(struct usb_interface *intf) -{ - struct usb_midi_state *s = usb_get_intfdata (intf); - struct usb_mididev *m; - - if ( !s ) - return; - - if ( s == (struct usb_midi_state *)-1 ) { - return; - } - if ( !s->usbdev ) { - return; - } - down(&open_sem); - list_del(&s->mididev); - INIT_LIST_HEAD(&s->mididev); - s->usbdev = NULL; - usb_set_intfdata (intf, NULL); - - list_for_each_entry(m, &s->midiDevList, list) { - wake_up(&(m->min.ep->wait)); - wake_up(&(m->mout.ep->wait)); - if ( m->dev_midi >= 0 ) { - unregister_sound_midi(m->dev_midi); - } - m->dev_midi = -1; - } - release_midi_device(s); - wake_up(&open_wait); -} - -/* we want to look at all devices by hand */ -static struct usb_device_id id_table[] = { - {.driver_info = 42}, - {} -}; - -static struct usb_driver usb_midi_driver = { - .name = "midi", - .probe = usb_midi_probe, - .disconnect = usb_midi_disconnect, - .id_table = id_table, -}; - -/* ------------------------------------------------------------------------- */ - -static int __init usb_midi_init(void) -{ - return usb_register(&usb_midi_driver); -} - -static void __exit usb_midi_exit(void) -{ - usb_deregister(&usb_midi_driver); -} - -module_init(usb_midi_init) ; -module_exit(usb_midi_exit) ; - -#ifdef HAVE_ALSA_SUPPORT -#define SNDRV_MAIN_OBJECT_FILE -#include "../../include/driver.h" -#include "../../include/control.h" -#include "../../include/info.h" -#include "../../include/cs46xx.h" - -/* ------------------------------------------------------------------------- */ - -static int snd_usbmidi_input_close(snd_rawmidi_substream_t * substream) -{ - return 0; -} - -static int snd_usbmidi_input_open(snd_rawmidi_substream_t * substream ) -{ - return 0; -} - -static void snd_usbmidi_input_trigger(snd_rawmidi_substream_t * substream, int up) -{ - return 0; -} - - -/* ------------------------------------------------------------------------- */ - -static int snd_usbmidi_output_close(snd_rawmidi_substream_t * substream) -{ - return 0; -} - -static int snd_usbmidi_output_open(snd_rawmidi_substream_t * substream) -{ - return 0; -} - -static void snd_usb_midi_output_trigger(snd_rawmidi_substream_t * substream, - int up) -{ - return 0; -} - -/* ------------------------------------------------------------------------- */ - -static snd_rawmidi_ops_t snd_usbmidi_output = -{ - .open = snd_usbmidi_output_open, - .close = snd_usbmidi_output_close, - .trigger = snd_usbmidi_output_trigger, -}; -static snd_rawmidi_ops_t snd_usbmidi_input = -{ - .open = snd_usbmidi_input_open, - .close = snd_usbmidi_input_close, - .trigger = snd_usbmidi_input_trigger, -}; - -int snd_usbmidi_midi(cs46xx_t *chip, int device, snd_rawmidi_t **rrawmidi) -{ - snd_rawmidi_t *rmidi; - int err; - - if (rrawmidi) - *rrawmidi = NULL; - if ((err = snd_rawmidi_new(chip->card, "USB-MIDI", device, 1, 1, &rmidi)) < 0) - return err; - strcpy(rmidi->name, "USB-MIDI"); - - snd_rawmidi_set_ops( rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_usbmidi_output ); - snd_rawmidi_set_ops( rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_usbmidi_input ); - - rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX; - - rmidi->private_data = chip; - chip->rmidi = rmidi; - if (rrawmidi) - *rrawmidi = NULL; - - return 0; -} - -int snd_usbmidi_create( snd_card_t * card, - struct pci_dev * pci, - usbmidi_t ** rchip ) -{ - usbmidi_t *chip; - int err, idx; - snd_region_t *region; - static snd_device_opt_t ops = { - .dev_free = snd_usbmidi_dev_free, - }; - - *rchip = NULL; - chip = snd_magic_kcalloc( usbmidi_t, 0, GFP_KERNEL ); - if ( chip == NULL ) - return -ENOMEM; -} - -EXPORT_SYMBOL(snd_usbmidi_create); -EXPORT_SYMBOL(snd_usbmidi_midi); -#endif /* HAVE_ALSA_SUPPORT */ - diff --git a/drivers/usb/class/usb-midi.h b/drivers/usb/class/usb-midi.h deleted file mode 100644 index 358cdef..0000000 --- a/drivers/usb/class/usb-midi.h +++ /dev/null @@ -1,164 +0,0 @@ -/* - usb-midi.h -- USB-MIDI driver - - Copyright (C) 2001 - NAGANO Daisuke <breeze.nagano@nifty.ne.jp> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -/* ------------------------------------------------------------------------- */ - -#ifndef _USB_MIDI_H_ -#define _USB_MIDI_H_ - -#ifndef USB_SUBCLASS_MIDISTREAMING -#define USB_SUBCLASS_MIDISTREAMING 3 -#endif - -/* ------------------------------------------------------------------------- */ -/* Roland MIDI Devices */ - -#define USB_VENDOR_ID_ROLAND 0x0582 -#define USBMIDI_ROLAND_UA100G 0x0000 -#define USBMIDI_ROLAND_MPU64 0x0002 -#define USBMIDI_ROLAND_SC8850 0x0003 -#define USBMIDI_ROLAND_SC8820 0x0007 -#define USBMIDI_ROLAND_UM2 0x0005 -#define USBMIDI_ROLAND_UM1 0x0009 -#define USBMIDI_ROLAND_PC300 0x0008 - -/* YAMAHA MIDI Devices */ -#define USB_VENDOR_ID_YAMAHA 0x0499 -#define USBMIDI_YAMAHA_MU1000 0x1001 - -/* Steinberg MIDI Devices */ -#define USB_VENDOR_ID_STEINBERG 0x0763 -#define USBMIDI_STEINBERG_USB2MIDI 0x1001 - -/* Mark of the Unicorn MIDI Devices */ -#define USB_VENDOR_ID_MOTU 0x07fd -#define USBMIDI_MOTU_FASTLANE 0x0001 - -/* ------------------------------------------------------------------------- */ -/* Supported devices */ - -struct usb_midi_endpoint { - int endpoint; - int cableId; /* if bit-n == 1 then cableId-n is enabled (n: 0 - 15) */ -}; - -struct usb_midi_device { - char *deviceName; - - u16 idVendor; - u16 idProduct; - int interface; - int altSetting; /* -1: auto detect */ - - struct usb_midi_endpoint in[15]; - struct usb_midi_endpoint out[15]; -}; - -static struct usb_midi_device usb_midi_devices[] = { - { /* Roland UM-1 */ - "Roland UM-1", - USB_VENDOR_ID_ROLAND, USBMIDI_ROLAND_UM1, 2, -1, - { { 0x81, 1 }, {-1, -1} }, - { { 0x01, 1,}, {-1, -1} }, - }, - - { /* Roland UM-2 */ - "Roland UM-2" , - USB_VENDOR_ID_ROLAND, USBMIDI_ROLAND_UM2, 2, -1, - { { 0x81, 3 }, {-1, -1} }, - { { 0x01, 3,}, {-1, -1} }, - }, - -/** Next entry courtesy research by Michael Minn <michael@michaelminn.com> **/ - { /* Roland UA-100 */ - "Roland UA-100", - USB_VENDOR_ID_ROLAND, USBMIDI_ROLAND_UA100G, 2, -1, - { { 0x82, 7 }, {-1, -1} }, /** cables 0,1 and 2 for SYSEX **/ - { { 0x02, 7 }, {-1, -1} }, - }, - -/** Next entry courtesy research by Michael Minn <michael@michaelminn.com> **/ - { /* Roland SC8850 */ - "Roland SC8850", - USB_VENDOR_ID_ROLAND, USBMIDI_ROLAND_SC8850, 2, -1, - { { 0x81, 0x3f }, {-1, -1} }, - { { 0x01, 0x3f }, {-1, -1} }, - }, - - { /* Roland SC8820 */ - "Roland SC8820", - USB_VENDOR_ID_ROLAND, USBMIDI_ROLAND_SC8820, 2, -1, - { { 0x81, 0x13 }, {-1, -1} }, - { { 0x01, 0x13 }, {-1, -1} }, - }, - - { /* Roland SC8820 */ - "Roland SC8820", - USB_VENDOR_ID_ROLAND, USBMIDI_ROLAND_SC8820, 2, -1, - { { 0x81, 17 }, {-1, -1} }, - { { 0x01, 17 }, {-1, -1} }, - }, - - { /* YAMAHA MU1000 */ - "YAMAHA MU1000", - USB_VENDOR_ID_YAMAHA, USBMIDI_YAMAHA_MU1000, 0, -1, - { { 0x81, 1 }, {-1, -1} }, - { { 0x01, 15 }, {-1, -1} }, - }, - { /* Roland PC-300 */ - "Roland PC-300", - USB_VENDOR_ID_ROLAND, USBMIDI_ROLAND_PC300, 2, -1, - { { 0x81, 1 }, {-1, -1} }, - { { 0x01, 1 }, {-1, -1} }, - }, - { /* MOTU Fastlane USB */ - "MOTU Fastlane USB", - USB_VENDOR_ID_MOTU, USBMIDI_MOTU_FASTLANE, 1, 0, - { { 0x82, 3 }, {-1, -1} }, - { { 0x02, 3 }, {-1, -1} }, - } -}; - -#define VENDOR_SPECIFIC_USB_MIDI_DEVICES (sizeof(usb_midi_devices)/sizeof(struct usb_midi_device)) - -/* for Hot-Plugging */ - -static struct usb_device_id usb_midi_ids [] = { - { .match_flags = (USB_DEVICE_ID_MATCH_INT_CLASS | USB_DEVICE_ID_MATCH_INT_SUBCLASS), - .bInterfaceClass = USB_CLASS_AUDIO, .bInterfaceSubClass = USB_SUBCLASS_MIDISTREAMING}, - { USB_DEVICE( USB_VENDOR_ID_ROLAND, USBMIDI_ROLAND_UM1 ) }, - { USB_DEVICE( USB_VENDOR_ID_ROLAND, USBMIDI_ROLAND_UM2 ) }, - { USB_DEVICE( USB_VENDOR_ID_ROLAND, USBMIDI_ROLAND_UA100G ) }, - { USB_DEVICE( USB_VENDOR_ID_ROLAND, USBMIDI_ROLAND_PC300 ) }, - { USB_DEVICE( USB_VENDOR_ID_ROLAND, USBMIDI_ROLAND_SC8850 ) }, - { USB_DEVICE( USB_VENDOR_ID_ROLAND, USBMIDI_ROLAND_SC8820 ) }, - { USB_DEVICE( USB_VENDOR_ID_YAMAHA, USBMIDI_YAMAHA_MU1000 ) }, - { USB_DEVICE( USB_VENDOR_ID_MOTU, USBMIDI_MOTU_FASTLANE ) }, -/* { USB_DEVICE( USB_VENDOR_ID_STEINBERG, USBMIDI_STEINBERG_USB2MIDI ) },*/ - { } /* Terminating entry */ -}; - -MODULE_DEVICE_TABLE (usb, usb_midi_ids); - -/* ------------------------------------------------------------------------- */ -#endif /* _USB_MIDI_H_ */ - - diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index d34848a..48dee4b8 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c @@ -55,6 +55,7 @@ #include <linux/init.h> #include <linux/slab.h> #include <linux/lp.h> +#include <linux/mutex.h> #undef DEBUG #include <linux/usb.h> @@ -223,7 +224,7 @@ static int usblp_cache_device_id_string(struct usblp *usblp); /* forward reference to make our lives easier */ static struct usb_driver usblp_driver; -static DECLARE_MUTEX(usblp_sem); /* locks the existence of usblp's */ +static DEFINE_MUTEX(usblp_mutex); /* locks the existence of usblp's */ /* * Functions for usblp control messages. @@ -351,7 +352,7 @@ static int usblp_open(struct inode *inode, struct file *file) if (minor < 0) return -ENODEV; - down (&usblp_sem); + mutex_lock (&usblp_mutex); retval = -ENODEV; intf = usb_find_interface(&usblp_driver, minor); @@ -399,7 +400,7 @@ static int usblp_open(struct inode *inode, struct file *file) } } out: - up (&usblp_sem); + mutex_unlock (&usblp_mutex); return retval; } @@ -425,13 +426,13 @@ static int usblp_release(struct inode *inode, struct file *file) { struct usblp *usblp = file->private_data; - down (&usblp_sem); + mutex_lock (&usblp_mutex); usblp->used = 0; if (usblp->present) { usblp_unlink_urbs(usblp); } else /* finish cleanup from disconnect */ usblp_cleanup (usblp); - up (&usblp_sem); + mutex_unlock (&usblp_mutex); return 0; } @@ -1152,7 +1153,7 @@ static void usblp_disconnect(struct usb_interface *intf) device_remove_file(&intf->dev, &dev_attr_ieee1284_id); - down (&usblp_sem); + mutex_lock (&usblp_mutex); down (&usblp->sem); usblp->present = 0; usb_set_intfdata (intf, NULL); @@ -1166,7 +1167,7 @@ static void usblp_disconnect(struct usb_interface *intf) if (!usblp->used) usblp_cleanup (usblp); - up (&usblp_sem); + mutex_unlock (&usblp_mutex); } static struct usb_device_id usblp_ids [] = { diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c index 2684e15..c0f3734 100644 --- a/drivers/usb/core/devices.c +++ b/drivers/usb/core/devices.c @@ -57,6 +57,7 @@ #include <linux/usb.h> #include <linux/smp_lock.h> #include <linux/usbdevice_fs.h> +#include <linux/mutex.h> #include <asm/uaccess.h> #include "usb.h" @@ -570,7 +571,7 @@ static ssize_t usb_device_read(struct file *file, char __user *buf, size_t nbyte if (!access_ok(VERIFY_WRITE, buf, nbytes)) return -EFAULT; - down (&usb_bus_list_lock); + mutex_lock(&usb_bus_list_lock); /* print devices for all busses */ list_for_each_entry(bus, &usb_bus_list, bus_list) { /* recurse through all children of the root hub */ @@ -580,12 +581,12 @@ static ssize_t usb_device_read(struct file *file, char __user *buf, size_t nbyte ret = usb_device_dump(&buf, &nbytes, &skip_bytes, ppos, bus->root_hub, bus, 0, 0, 0); usb_unlock_device(bus->root_hub); if (ret < 0) { - up(&usb_bus_list_lock); + mutex_unlock(&usb_bus_list_lock); return ret; } total_written += ret; } - up (&usb_bus_list_lock); + mutex_unlock(&usb_bus_list_lock); return total_written; } diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 2b68998..545da37 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -134,26 +134,21 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes, l } if (pos < sizeof(struct usb_device_descriptor)) { - struct usb_device_descriptor *desc = kmalloc(sizeof(*desc), GFP_KERNEL); - if (!desc) { - ret = -ENOMEM; - goto err; - } - memcpy(desc, &dev->descriptor, sizeof(dev->descriptor)); - le16_to_cpus(&desc->bcdUSB); - le16_to_cpus(&desc->idVendor); - le16_to_cpus(&desc->idProduct); - le16_to_cpus(&desc->bcdDevice); + struct usb_device_descriptor temp_desc ; /* 18 bytes - fits on the stack */ + + memcpy(&temp_desc, &dev->descriptor, sizeof(dev->descriptor)); + le16_to_cpus(&temp_desc.bcdUSB); + le16_to_cpus(&temp_desc.idVendor); + le16_to_cpus(&temp_desc.idProduct); + le16_to_cpus(&temp_desc.bcdDevice); len = sizeof(struct usb_device_descriptor) - pos; if (len > nbytes) len = nbytes; - if (copy_to_user(buf, ((char *)desc) + pos, len)) { - kfree(desc); + if (copy_to_user(buf, ((char *)&temp_desc) + pos, len)) { ret = -EFAULT; goto err; } - kfree(desc); *ppos += len; buf += len; @@ -498,7 +493,8 @@ static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype, unsig { int ret = 0; - if (ps->dev->state != USB_STATE_CONFIGURED) + if (ps->dev->state != USB_STATE_ADDRESS + && ps->dev->state != USB_STATE_CONFIGURED) return -EHOSTUNREACH; if (USB_TYPE_VENDOR == (USB_TYPE_MASK & requesttype)) return 0; diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index 29b5b2a..e0afb5a 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -264,14 +264,19 @@ int usb_hcd_pci_suspend (struct pci_dev *dev, pm_message_t message) */ retval = pci_set_power_state (dev, PCI_D3hot); if (retval == 0) { - dev_dbg (hcd->self.controller, "--> PCI D3\n"); + int wake = device_can_wakeup(&hcd->self.root_hub->dev); + + wake = wake && device_may_wakeup(hcd->self.controller); + + dev_dbg (hcd->self.controller, "--> PCI D3%s\n", + wake ? "/wakeup" : ""); /* Ignore these return values. We rely on pci code to * reject requests the hardware can't implement, rather * than coding the same thing. */ - (void) pci_enable_wake (dev, PCI_D3hot, hcd->remote_wakeup); - (void) pci_enable_wake (dev, PCI_D3cold, hcd->remote_wakeup); + (void) pci_enable_wake (dev, PCI_D3hot, wake); + (void) pci_enable_wake (dev, PCI_D3cold, wake); } else { dev_dbg (&dev->dev, "PCI D3 suspend fail, %d\n", retval); diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 0018bbc..fbd938d 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -34,6 +34,7 @@ #include <asm/scatterlist.h> #include <linux/device.h> #include <linux/dma-mapping.h> +#include <linux/mutex.h> #include <asm/irq.h> #include <asm/byteorder.h> @@ -93,7 +94,7 @@ struct usb_busmap { static struct usb_busmap busmap; /* used when updating list of hcds */ -DECLARE_MUTEX (usb_bus_list_lock); /* exported only for usbfs */ +DEFINE_MUTEX(usb_bus_list_lock); /* exported only for usbfs */ EXPORT_SYMBOL_GPL (usb_bus_list_lock); /* used for controlling access to virtual root hubs */ @@ -366,21 +367,39 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) /* DEVICE REQUESTS */ + /* The root hub's remote wakeup enable bit is implemented using + * driver model wakeup flags. If this system supports wakeup + * through USB, userspace may change the default "allow wakeup" + * policy through sysfs or these calls. + * + * Most root hubs support wakeup from downstream devices, for + * runtime power management (disabling USB clocks and reducing + * VBUS power usage). However, not all of them do so; silicon, + * board, and BIOS bugs here are not uncommon, so these can't + * be treated quite like external hubs. + * + * Likewise, not all root hubs will pass wakeup events upstream, + * to wake up the whole system. So don't assume root hub and + * controller capabilities are identical. + */ + case DeviceRequest | USB_REQ_GET_STATUS: - tbuf [0] = (hcd->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP) + tbuf [0] = (device_may_wakeup(&hcd->self.root_hub->dev) + << USB_DEVICE_REMOTE_WAKEUP) | (1 << USB_DEVICE_SELF_POWERED); tbuf [1] = 0; len = 2; break; case DeviceOutRequest | USB_REQ_CLEAR_FEATURE: if (wValue == USB_DEVICE_REMOTE_WAKEUP) - hcd->remote_wakeup = 0; + device_set_wakeup_enable(&hcd->self.root_hub->dev, 0); else goto error; break; case DeviceOutRequest | USB_REQ_SET_FEATURE: - if (hcd->can_wakeup && wValue == USB_DEVICE_REMOTE_WAKEUP) - hcd->remote_wakeup = 1; + if (device_can_wakeup(&hcd->self.root_hub->dev) + && wValue == USB_DEVICE_REMOTE_WAKEUP) + device_set_wakeup_enable(&hcd->self.root_hub->dev, 1); else goto error; break; @@ -409,7 +428,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) bufp = fs_rh_config_descriptor; len = sizeof fs_rh_config_descriptor; } - if (hcd->can_wakeup) + if (device_can_wakeup(&hcd->self.root_hub->dev)) patch_wakeup = 1; break; case USB_DT_STRING << 8: @@ -761,14 +780,14 @@ static int usb_register_bus(struct usb_bus *bus) { int busnum; - down (&usb_bus_list_lock); + mutex_lock(&usb_bus_list_lock); busnum = find_next_zero_bit (busmap.busmap, USB_MAXBUS, 1); if (busnum < USB_MAXBUS) { set_bit (busnum, busmap.busmap); bus->busnum = busnum; } else { printk (KERN_ERR "%s: too many buses\n", usbcore_name); - up(&usb_bus_list_lock); + mutex_unlock(&usb_bus_list_lock); return -E2BIG; } @@ -776,7 +795,7 @@ static int usb_register_bus(struct usb_bus *bus) bus->controller, "usb_host%d", busnum); if (IS_ERR(bus->class_dev)) { clear_bit(busnum, busmap.busmap); - up(&usb_bus_list_lock); + mutex_unlock(&usb_bus_list_lock); return PTR_ERR(bus->class_dev); } @@ -784,7 +803,7 @@ static int usb_register_bus(struct usb_bus *bus) /* Add it to the local list of buses */ list_add (&bus->bus_list, &usb_bus_list); - up (&usb_bus_list_lock); + mutex_unlock(&usb_bus_list_lock); usb_notify_add_bus(bus); @@ -809,9 +828,9 @@ static void usb_deregister_bus (struct usb_bus *bus) * controller code, as well as having it call this when cleaning * itself up */ - down (&usb_bus_list_lock); + mutex_lock(&usb_bus_list_lock); list_del (&bus->bus_list); - up (&usb_bus_list_lock); + mutex_unlock(&usb_bus_list_lock); usb_notify_remove_bus(bus); @@ -822,18 +841,17 @@ static void usb_deregister_bus (struct usb_bus *bus) /** * register_root_hub - called by usb_add_hcd() to register a root hub - * @usb_dev: the usb root hub device to be registered. * @hcd: host controller for this root hub * * This function registers the root hub with the USB subsystem. It sets up - * the device properly in the device tree and stores the root_hub pointer - * in the bus structure, then calls usb_new_device() to register the usb - * device. It also assigns the root hub's USB address (always 1). + * the device properly in the device tree and then calls usb_new_device() + * to register the usb device. It also assigns the root hub's USB address + * (always 1). */ -static int register_root_hub (struct usb_device *usb_dev, - struct usb_hcd *hcd) +static int register_root_hub(struct usb_hcd *hcd) { struct device *parent_dev = hcd->self.controller; + struct usb_device *usb_dev = hcd->self.root_hub; const int devnum = 1; int retval; @@ -844,14 +862,12 @@ static int register_root_hub (struct usb_device *usb_dev, set_bit (devnum, usb_dev->bus->devmap.devicemap); usb_set_device_state(usb_dev, USB_STATE_ADDRESS); - down (&usb_bus_list_lock); - usb_dev->bus->root_hub = usb_dev; + mutex_lock(&usb_bus_list_lock); usb_dev->ep0.desc.wMaxPacketSize = __constant_cpu_to_le16(64); retval = usb_get_device_descriptor(usb_dev, USB_DT_DEVICE_SIZE); if (retval != sizeof usb_dev->descriptor) { - usb_dev->bus->root_hub = NULL; - up (&usb_bus_list_lock); + mutex_unlock(&usb_bus_list_lock); dev_dbg (parent_dev, "can't read %s device descriptor %d\n", usb_dev->dev.bus_id, retval); return (retval < 0) ? retval : -EMSGSIZE; @@ -859,11 +875,10 @@ static int register_root_hub (struct usb_device *usb_dev, retval = usb_new_device (usb_dev); if (retval) { - usb_dev->bus->root_hub = NULL; dev_err (parent_dev, "can't register root hub for %s, %d\n", usb_dev->dev.bus_id, retval); } - up (&usb_bus_list_lock); + mutex_unlock(&usb_bus_list_lock); if (retval == 0) { spin_lock_irq (&hcd_root_hub_lock); @@ -1090,7 +1105,6 @@ static void urb_unlink (struct urb *urb) spin_lock_irqsave (&hcd_data_lock, flags); list_del_init (&urb->urb_list); spin_unlock_irqrestore (&hcd_data_lock, flags); - usb_put_dev (urb->dev); } @@ -1130,7 +1144,6 @@ static int hcd_submit_urb (struct urb *urb, gfp_t mem_flags) case HC_STATE_RUNNING: case HC_STATE_RESUMING: doit: - usb_get_dev (urb->dev); list_add_tail (&urb->urb_list, &ep->urb_list); status = 0; break; @@ -1771,12 +1784,10 @@ int usb_add_hcd(struct usb_hcd *hcd, set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); - /* till now HC has been in an indeterminate state ... */ - if (hcd->driver->reset && (retval = hcd->driver->reset(hcd)) < 0) { - dev_err(hcd->self.controller, "can't reset\n"); - return retval; - } - + /* HC is in reset state, but accessible. Now do the one-time init, + * bottom up so that hcds can customize the root hubs before khubd + * starts talking to them. (Note, bus id is assigned early too.) + */ if ((retval = hcd_buffer_create(hcd)) != 0) { dev_dbg(hcd->self.controller, "pool alloc failed\n"); return retval; @@ -1785,6 +1796,36 @@ int usb_add_hcd(struct usb_hcd *hcd, if ((retval = usb_register_bus(&hcd->self)) < 0) goto err_register_bus; + if ((rhdev = usb_alloc_dev(NULL, &hcd->self, 0)) == NULL) { + dev_err(hcd->self.controller, "unable to allocate root hub\n"); + retval = -ENOMEM; + goto err_allocate_root_hub; + } + rhdev->speed = (hcd->driver->flags & HCD_USB2) ? USB_SPEED_HIGH : + USB_SPEED_FULL; + hcd->self.root_hub = rhdev; + + /* "reset" is misnamed; its role is now one-time init. the controller + * should already have been reset (and boot firmware kicked off etc). + */ + if (hcd->driver->reset && (retval = hcd->driver->reset(hcd)) < 0) { + dev_err(hcd->self.controller, "can't setup\n"); + goto err_hcd_driver_setup; + } + + /* wakeup flag init is in transition; for now we can't rely on PCI to + * initialize these bits properly, so we let reset() override it. + * This init should _precede_ the reset() once PCI behaves. + */ + device_init_wakeup(&rhdev->dev, + device_can_wakeup(hcd->self.controller)); + + /* NOTE: root hub and controller capabilities may not be the same */ + if (device_can_wakeup(hcd->self.controller) + && device_can_wakeup(&hcd->self.root_hub->dev)) + dev_dbg(hcd->self.controller, "supports USB remote wakeup\n"); + + /* enable irqs just before we start the controller */ if (hcd->driver->irq) { char buf[8], *bufp = buf; @@ -1816,56 +1857,32 @@ int usb_add_hcd(struct usb_hcd *hcd, (unsigned long long)hcd->rsrc_start); } - /* Allocate the root hub before calling hcd->driver->start(), - * but don't register it until afterward so that the hardware - * is running. - */ - if ((rhdev = usb_alloc_dev(NULL, &hcd->self, 0)) == NULL) { - dev_err(hcd->self.controller, "unable to allocate root hub\n"); - retval = -ENOMEM; - goto err_allocate_root_hub; - } - - /* Although in principle hcd->driver->start() might need to use rhdev, - * none of the current drivers do. - */ if ((retval = hcd->driver->start(hcd)) < 0) { dev_err(hcd->self.controller, "startup error %d\n", retval); goto err_hcd_driver_start; } - /* hcd->driver->start() reported can_wakeup, probably with - * assistance from board's boot firmware. - * NOTE: normal devices won't enable wakeup by default. - */ - if (hcd->can_wakeup) - dev_dbg(hcd->self.controller, "supports USB remote wakeup\n"); - hcd->remote_wakeup = hcd->can_wakeup; - - rhdev->speed = (hcd->driver->flags & HCD_USB2) ? USB_SPEED_HIGH : - USB_SPEED_FULL; + /* starting here, usbcore will pay attention to this root hub */ rhdev->bus_mA = min(500u, hcd->power_budget); - if ((retval = register_root_hub(rhdev, hcd)) != 0) + if ((retval = register_root_hub(hcd)) != 0) goto err_register_root_hub; if (hcd->uses_new_polling && hcd->poll_rh) usb_hcd_poll_rh_status(hcd); return retval; - err_register_root_hub: +err_register_root_hub: hcd->driver->stop(hcd); - - err_hcd_driver_start: - usb_put_dev(rhdev); - - err_allocate_root_hub: +err_hcd_driver_start: if (hcd->irq >= 0) free_irq(irqnum, hcd); - - err_request_irq: +err_request_irq: +err_hcd_driver_setup: + hcd->self.root_hub = NULL; + usb_put_dev(rhdev); +err_allocate_root_hub: usb_deregister_bus(&hcd->self); - - err_register_bus: +err_register_bus: hcd_buffer_destroy(hcd); return retval; } @@ -1891,9 +1908,9 @@ void usb_remove_hcd(struct usb_hcd *hcd) hcd->rh_registered = 0; spin_unlock_irq (&hcd_root_hub_lock); - down(&usb_bus_list_lock); + mutex_lock(&usb_bus_list_lock); usb_disconnect(&hcd->self.root_hub); - up(&usb_bus_list_lock); + mutex_unlock(&usb_bus_list_lock); hcd->poll_rh = 0; del_timer_sync(&hcd->rh_timer); diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index 591b5aa..7022aaf 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -78,8 +78,6 @@ struct usb_hcd { /* usb_bus.hcpriv points to this */ #define HCD_FLAG_HW_ACCESSIBLE 0x00000001 #define HCD_FLAG_SAW_IRQ 0x00000002 - unsigned can_wakeup:1; /* hw supports wakeup? */ - unsigned remote_wakeup:1;/* sw should use wakeup? */ unsigned rh_registered:1;/* is root hub registered? */ /* The next flag is a stopgap, to be removed when all the HCDs @@ -364,7 +362,7 @@ extern void usb_set_device_state(struct usb_device *udev, /* exported only within usbcore */ extern struct list_head usb_bus_list; -extern struct semaphore usb_bus_list_lock; +extern struct mutex usb_bus_list_lock; extern wait_queue_head_t usb_kill_urb_queue; extern struct usb_bus *usb_bus_get (struct usb_bus *bus); diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 650d5ee..8e65f7a 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -22,6 +22,7 @@ #include <linux/usb.h> #include <linux/usbdevice_fs.h> #include <linux/kthread.h> +#include <linux/mutex.h> #include <asm/semaphore.h> #include <asm/uaccess.h> @@ -1005,12 +1006,18 @@ void usb_set_device_state(struct usb_device *udev, ; /* do nothing */ else if (new_state != USB_STATE_NOTATTACHED) { udev->state = new_state; - if (new_state == USB_STATE_CONFIGURED) - device_init_wakeup(&udev->dev, - (udev->actconfig->desc.bmAttributes - & USB_CONFIG_ATT_WAKEUP)); - else if (new_state != USB_STATE_SUSPENDED) - device_init_wakeup(&udev->dev, 0); + + /* root hub wakeup capabilities are managed out-of-band + * and may involve silicon errata ... ignore them here. + */ + if (udev->parent) { + if (new_state == USB_STATE_CONFIGURED) + device_init_wakeup(&udev->dev, + (udev->actconfig->desc.bmAttributes + & USB_CONFIG_ATT_WAKEUP)); + else if (new_state != USB_STATE_SUSPENDED) + device_init_wakeup(&udev->dev, 0); + } } else recursively_mark_NOTATTACHED(udev); spin_unlock_irqrestore(&device_state_lock, flags); @@ -1172,8 +1179,11 @@ static int choose_configuration(struct usb_device *udev) c = udev->config; num_configs = udev->descriptor.bNumConfigurations; for (i = 0; i < num_configs; (i++, c++)) { - struct usb_interface_descriptor *desc = - &c->intf_cache[0]->altsetting->desc; + struct usb_interface_descriptor *desc = NULL; + + /* It's possible that a config has no interfaces! */ + if (c->desc.bNumInterfaces > 0) + desc = &c->intf_cache[0]->altsetting->desc; /* * HP's USB bus-powered keyboard has only one configuration @@ -1208,7 +1218,8 @@ static int choose_configuration(struct usb_device *udev) /* If the first config's first interface is COMM/2/0xff * (MSFT RNDIS), rule it out unless Linux has host-side * RNDIS support. */ - if (i == 0 && desc->bInterfaceClass == USB_CLASS_COMM + if (i == 0 && desc + && desc->bInterfaceClass == USB_CLASS_COMM && desc->bInterfaceSubClass == 2 && desc->bInterfaceProtocol == 0xff) { #ifndef CONFIG_USB_NET_RNDIS @@ -1224,8 +1235,8 @@ static int choose_configuration(struct usb_device *udev) * than a vendor-specific driver. */ else if (udev->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC && - desc->bInterfaceClass != - USB_CLASS_VENDOR_SPEC) { + (!desc || desc->bInterfaceClass != + USB_CLASS_VENDOR_SPEC)) { best = c; break; } @@ -1876,18 +1887,18 @@ int usb_resume_device(struct usb_device *udev) if (udev->state == USB_STATE_NOTATTACHED) return -ENODEV; -#ifdef CONFIG_USB_SUSPEND /* selective resume of one downstream hub-to-device port */ if (udev->parent) { +#ifdef CONFIG_USB_SUSPEND if (udev->state == USB_STATE_SUSPENDED) { // NOTE swsusp may bork us, device state being wrong... // NOTE this fails if parent is also suspended... status = hub_port_resume(hdev_to_hub(udev->parent), udev->portnum, udev); } else +#endif status = 0; } else -#endif status = finish_device_resume(udev); if (status < 0) dev_dbg(&udev->dev, "can't resume, status %d\n", @@ -2162,7 +2173,7 @@ static int hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, int retry_counter) { - static DECLARE_MUTEX(usb_address0_sem); + static DEFINE_MUTEX(usb_address0_mutex); struct usb_device *hdev = hub->hdev; int i, j, retval; @@ -2183,7 +2194,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, if (oldspeed == USB_SPEED_LOW) delay = HUB_LONG_RESET_TIME; - down(&usb_address0_sem); + mutex_lock(&usb_address0_mutex); /* Reset the device; full speed may morph to high speed */ retval = hub_port_reset(hub, port1, udev, delay); @@ -2381,7 +2392,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, fail: if (retval) hub_port_disable(hub, port1, 0); - up(&usb_address0_sem); + mutex_unlock(&usb_address0_mutex); return retval; } @@ -3017,7 +3028,7 @@ int usb_reset_device(struct usb_device *udev) parent_hub = hdev_to_hub(parent_hdev); /* If we're resetting an active hub, take some special actions */ - if (udev->actconfig && + if (udev->actconfig && udev->actconfig->desc.bNumInterfaces > 0 && udev->actconfig->interface[0]->dev.driver == &hub_driver.driver && (hub = hdev_to_hub(udev)) != NULL) { diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 7135e54..08fb20f 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -631,8 +631,8 @@ int usb_get_descriptor(struct usb_device *dev, unsigned char type, unsigned char * Returns the number of bytes received on success, or else the status code * returned by the underlying usb_control_msg() call. */ -int usb_get_string(struct usb_device *dev, unsigned short langid, - unsigned char index, void *buf, int size) +static int usb_get_string(struct usb_device *dev, unsigned short langid, + unsigned char index, void *buf, int size) { int i; int result; @@ -1388,11 +1388,13 @@ free_interfaces: if (dev->state != USB_STATE_ADDRESS) usb_disable_device (dev, 1); // Skip ep0 - i = dev->bus_mA - cp->desc.bMaxPower * 2; - if (i < 0) - dev_warn(&dev->dev, "new config #%d exceeds power " - "limit by %dmA\n", - configuration, -i); + if (cp) { + i = dev->bus_mA - cp->desc.bMaxPower * 2; + if (i < 0) + dev_warn(&dev->dev, "new config #%d exceeds power " + "limit by %dmA\n", + configuration, -i); + } if ((ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION, 0, configuration, 0, @@ -1488,7 +1490,6 @@ EXPORT_SYMBOL(usb_sg_wait); // synchronous control message convenience routines EXPORT_SYMBOL(usb_get_descriptor); EXPORT_SYMBOL(usb_get_status); -EXPORT_SYMBOL(usb_get_string); EXPORT_SYMBOL(usb_string); // synchronous calls that also maintain usbcore state diff --git a/drivers/usb/core/notify.c b/drivers/usb/core/notify.c index fbbebab..4b55285 100644 --- a/drivers/usb/core/notify.c +++ b/drivers/usb/core/notify.c @@ -13,16 +13,17 @@ #include <linux/kernel.h> #include <linux/notifier.h> #include <linux/usb.h> +#include <linux/mutex.h> #include "usb.h" static struct notifier_block *usb_notifier_list; -static DECLARE_MUTEX(usb_notifier_lock); +static DEFINE_MUTEX(usb_notifier_lock); static void usb_notifier_chain_register(struct notifier_block **list, struct notifier_block *n) { - down(&usb_notifier_lock); + mutex_lock(&usb_notifier_lock); while (*list) { if (n->priority > (*list)->priority) break; @@ -30,13 +31,13 @@ static void usb_notifier_chain_register(struct notifier_block **list, } n->next = *list; *list = n; - up(&usb_notifier_lock); + mutex_unlock(&usb_notifier_lock); } static void usb_notifier_chain_unregister(struct notifier_block **nl, struct notifier_block *n) { - down(&usb_notifier_lock); + mutex_lock(&usb_notifier_lock); while ((*nl)!=NULL) { if ((*nl)==n) { *nl = n->next; @@ -45,7 +46,7 @@ static void usb_notifier_chain_unregister(struct notifier_block **nl, nl=&((*nl)->next); } exit: - up(&usb_notifier_lock); + mutex_unlock(&usb_notifier_lock); } static int usb_notifier_call_chain(struct notifier_block **n, @@ -54,7 +55,7 @@ static int usb_notifier_call_chain(struct notifier_block **n, int ret=NOTIFY_DONE; struct notifier_block *nb = *n; - down(&usb_notifier_lock); + mutex_lock(&usb_notifier_lock); while (nb) { ret = nb->notifier_call(nb,val,v); if (ret&NOTIFY_STOP_MASK) { @@ -63,7 +64,7 @@ static int usb_notifier_call_chain(struct notifier_block **n, nb = nb->next; } exit: - up(&usb_notifier_lock); + mutex_unlock(&usb_notifier_lock); return ret; } diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 13d1d36..d7352aa 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -33,6 +33,7 @@ #include <linux/errno.h> #include <linux/smp_lock.h> #include <linux/usb.h> +#include <linux/mutex.h> #include <asm/io.h> #include <asm/scatterlist.h> @@ -639,7 +640,7 @@ struct usb_device *usb_find_device(u16 vendor_id, u16 product_id) struct usb_bus *bus; struct usb_device *dev = NULL; - down(&usb_bus_list_lock); + mutex_lock(&usb_bus_list_lock); for (buslist = usb_bus_list.next; buslist != &usb_bus_list; buslist = buslist->next) { @@ -653,7 +654,7 @@ struct usb_device *usb_find_device(u16 vendor_id, u16 product_id) goto exit; } exit: - up(&usb_bus_list_lock); + mutex_unlock(&usb_bus_list_lock); return dev; } diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index ff075a5..d80f718 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -187,6 +187,23 @@ config USB_OTG Select this only if your OMAP board has a Mini-AB connector. +config USB_GADGET_AT91 + boolean "AT91 USB Device Port" + depends on ARCH_AT91RM9200 + select USB_GADGET_SELECTED + help + Many Atmel AT91 processors (such as the AT91RM2000) have a + full speed USB Device Port with support for five configurable + endpoints (plus endpoint zero). + + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "at91_udc" and force all + gadget drivers to also be dynamically linked. + +config USB_AT91 + tristate + depends on USB_GADGET_AT91 + default USB_GADGET config USB_GADGET_DUMMY_HCD boolean "Dummy HCD (DEVELOPMENT)" diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index d5fd04d..5a28e613 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_USB_PXA2XX) += pxa2xx_udc.o obj-$(CONFIG_USB_GOKU) += goku_udc.o obj-$(CONFIG_USB_OMAP) += omap_udc.o obj-$(CONFIG_USB_LH7A40X) += lh7a40x_udc.o +obj-$(CONFIG_USB_AT91) += at91_udc.o # # USB gadget drivers diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c new file mode 100644 index 0000000..865858c --- /dev/null +++ b/drivers/usb/gadget/at91_udc.c @@ -0,0 +1,1773 @@ +/* + * at91_udc -- driver for at91-series USB peripheral controller + * + * Copyright (C) 2004 by Thomas Rathbone + * Copyright (C) 2005 by HP Labs + * Copyright (C) 2005 by David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#undef DEBUG +#undef VERBOSE +#undef PACKET_TRACE + +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/delay.h> +#include <linux/ioport.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/smp_lock.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/interrupt.h> +#include <linux/proc_fs.h> +#include <linux/clk.h> +#include <linux/usb_ch9.h> +#include <linux/usb_gadget.h> + +#include <asm/byteorder.h> +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/system.h> +#include <asm/mach-types.h> + +#include <asm/arch/hardware.h> +#include <asm/arch/gpio.h> +#include <asm/arch/board.h> + +#include "at91_udc.h" + + +/* + * This controller is simple and PIO-only. It's used in many AT91-series + * ARMv4T controllers, including the at91rm9200 (arm920T, with MMU), + * at91sam9261 (arm926ejs, with MMU), and several no-mmu versions. + * + * This driver expects the board has been wired with two GPIOs suppporting + * a VBUS sensing IRQ, and a D+ pullup. (They may be omitted, but the + * testing hasn't covered such cases.) The pullup is most important; it + * provides software control over whether the host enumerates the device. + * The VBUS sensing helps during enumeration, and allows both USB clocks + * (and the transceiver) to stay gated off until they're necessary, saving + * power. During USB suspend, the 48 MHz clock is gated off. + */ + +#define DRIVER_VERSION "8 March 2005" + +static const char driver_name [] = "at91_udc"; +static const char ep0name[] = "ep0"; + +/*-------------------------------------------------------------------------*/ + +/* + * Read from a UDP register. + */ +static inline unsigned long at91_udp_read(unsigned int reg) +{ + void __iomem *udp_base = (void __iomem *)AT91_VA_BASE_UDP; + + return __raw_readl(udp_base + reg); +} + +/* + * Write to a UDP register. + */ +static inline void at91_udp_write(unsigned int reg, unsigned long value) +{ + void __iomem *udp_base = (void __iomem *)AT91_VA_BASE_UDP; + + __raw_writel(value, udp_base + reg); +} + +/*-------------------------------------------------------------------------*/ + +#ifdef CONFIG_USB_GADGET_DEBUG_FILES + +#include <linux/seq_file.h> + +static const char debug_filename[] = "driver/udc"; + +#define FOURBITS "%s%s%s%s" +#define EIGHTBITS FOURBITS FOURBITS + +static void proc_ep_show(struct seq_file *s, struct at91_ep *ep) +{ + static char *types[] = { + "control", "out-iso", "out-bulk", "out-int", + "BOGUS", "in-iso", "in-bulk", "in-int"}; + + u32 csr; + struct at91_request *req; + unsigned long flags; + + local_irq_save(flags); + + csr = __raw_readl(ep->creg); + + /* NOTE: not collecting per-endpoint irq statistics... */ + + seq_printf(s, "\n"); + seq_printf(s, "%s, maxpacket %d %s%s %s%s\n", + ep->ep.name, ep->ep.maxpacket, + ep->is_in ? "in" : "out", + ep->is_iso ? " iso" : "", + ep->is_pingpong + ? (ep->fifo_bank ? "pong" : "ping") + : "", + ep->stopped ? " stopped" : ""); + seq_printf(s, "csr %08x rxbytes=%d %s %s %s" EIGHTBITS "\n", + csr, + (csr & 0x07ff0000) >> 16, + (csr & (1 << 15)) ? "enabled" : "disabled", + (csr & (1 << 11)) ? "DATA1" : "DATA0", + types[(csr & 0x700) >> 8], + + /* iff type is control then print current direction */ + (!(csr & 0x700)) + ? ((csr & (1 << 7)) ? " IN" : " OUT") + : "", + (csr & (1 << 6)) ? " rxdatabk1" : "", + (csr & (1 << 5)) ? " forcestall" : "", + (csr & (1 << 4)) ? " txpktrdy" : "", + + (csr & (1 << 3)) ? " stallsent" : "", + (csr & (1 << 2)) ? " rxsetup" : "", + (csr & (1 << 1)) ? " rxdatabk0" : "", + (csr & (1 << 0)) ? " txcomp" : ""); + if (list_empty (&ep->queue)) + seq_printf(s, "\t(queue empty)\n"); + + else list_for_each_entry (req, &ep->queue, queue) { + unsigned length = req->req.actual; + + seq_printf(s, "\treq %p len %d/%d buf %p\n", + &req->req, length, + req->req.length, req->req.buf); + } + local_irq_restore(flags); +} + +static void proc_irq_show(struct seq_file *s, const char *label, u32 mask) +{ + int i; + + seq_printf(s, "%s %04x:%s%s" FOURBITS, label, mask, + (mask & (1 << 13)) ? " wakeup" : "", + (mask & (1 << 12)) ? " endbusres" : "", + + (mask & (1 << 11)) ? " sofint" : "", + (mask & (1 << 10)) ? " extrsm" : "", + (mask & (1 << 9)) ? " rxrsm" : "", + (mask & (1 << 8)) ? " rxsusp" : ""); + for (i = 0; i < 8; i++) { + if (mask & (1 << i)) + seq_printf(s, " ep%d", i); + } + seq_printf(s, "\n"); +} + +static int proc_udc_show(struct seq_file *s, void *unused) +{ + struct at91_udc *udc = s->private; + struct at91_ep *ep; + u32 tmp; + + seq_printf(s, "%s: version %s\n", driver_name, DRIVER_VERSION); + + seq_printf(s, "vbus %s, pullup %s, %s powered%s, gadget %s\n\n", + udc->vbus ? "present" : "off", + udc->enabled + ? (udc->vbus ? "active" : "enabled") + : "disabled", + udc->selfpowered ? "self" : "VBUS", + udc->suspended ? ", suspended" : "", + udc->driver ? udc->driver->driver.name : "(none)"); + + /* don't access registers when interface isn't clocked */ + if (!udc->clocked) { + seq_printf(s, "(not clocked)\n"); + return 0; + } + + tmp = at91_udp_read(AT91_UDP_FRM_NUM); + seq_printf(s, "frame %05x:%s%s frame=%d\n", tmp, + (tmp & AT91_UDP_FRM_OK) ? " ok" : "", + (tmp & AT91_UDP_FRM_ERR) ? " err" : "", + (tmp & AT91_UDP_NUM)); + + tmp = at91_udp_read(AT91_UDP_GLB_STAT); + seq_printf(s, "glbstate %02x:%s" FOURBITS "\n", tmp, + (tmp & AT91_UDP_RMWUPE) ? " rmwupe" : "", + (tmp & AT91_UDP_RSMINPR) ? " rsminpr" : "", + (tmp & AT91_UDP_ESR) ? " esr" : "", + (tmp & AT91_UDP_CONFG) ? " confg" : "", + (tmp & AT91_UDP_FADDEN) ? " fadden" : ""); + + tmp = at91_udp_read(AT91_UDP_FADDR); + seq_printf(s, "faddr %03x:%s fadd=%d\n", tmp, + (tmp & AT91_UDP_FEN) ? " fen" : "", + (tmp & AT91_UDP_FADD)); + + proc_irq_show(s, "imr ", at91_udp_read(AT91_UDP_IMR)); + proc_irq_show(s, "isr ", at91_udp_read(AT91_UDP_ISR)); + + if (udc->enabled && udc->vbus) { + proc_ep_show(s, &udc->ep[0]); + list_for_each_entry (ep, &udc->gadget.ep_list, ep.ep_list) { + if (ep->desc) + proc_ep_show(s, ep); + } + } + return 0; +} + +static int proc_udc_open(struct inode *inode, struct file *file) +{ + return single_open(file, proc_udc_show, PDE(inode)->data); +} + +static struct file_operations proc_ops = { + .open = proc_udc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static void create_debug_file(struct at91_udc *udc) +{ + struct proc_dir_entry *pde; + + pde = create_proc_entry (debug_filename, 0, NULL); + udc->pde = pde; + if (pde == NULL) + return; + + pde->proc_fops = &proc_ops; + pde->data = udc; +} + +static void remove_debug_file(struct at91_udc *udc) +{ + if (udc->pde) + remove_proc_entry(debug_filename, NULL); +} + +#else + +static inline void create_debug_file(struct at91_udc *udc) {} +static inline void remove_debug_file(struct at91_udc *udc) {} + +#endif + + +/*-------------------------------------------------------------------------*/ + +static void done(struct at91_ep *ep, struct at91_request *req, int status) +{ + unsigned stopped = ep->stopped; + + list_del_init(&req->queue); + if (req->req.status == -EINPROGRESS) + req->req.status = status; + else + status = req->req.status; + if (status && status != -ESHUTDOWN) + VDBG("%s done %p, status %d\n", ep->ep.name, req, status); + + ep->stopped = 1; + req->req.complete(&ep->ep, &req->req); + ep->stopped = stopped; + + /* ep0 is always ready; other endpoints need a non-empty queue */ + if (list_empty(&ep->queue) && ep->int_mask != (1 << 0)) + at91_udp_write(AT91_UDP_IDR, ep->int_mask); +} + +/*-------------------------------------------------------------------------*/ + +/* bits indicating OUT fifo has data ready */ +#define RX_DATA_READY (AT91_UDP_RX_DATA_BK0 | AT91_UDP_RX_DATA_BK1) + +/* + * Endpoint FIFO CSR bits have a mix of bits, making it unsafe to just write + * back most of the value you just read (because of side effects, including + * bits that may change after reading and before writing). + * + * Except when changing a specific bit, always write values which: + * - clear SET_FX bits (setting them could change something) + * - set CLR_FX bits (clearing them could change something) + * + * There are also state bits like FORCESTALL, EPEDS, DIR, and EPTYPE + * that shouldn't normally be changed. + */ +#define SET_FX (AT91_UDP_TXPKTRDY) +#define CLR_FX (RX_DATA_READY | AT91_UDP_RXSETUP | AT91_UDP_STALLSENT | AT91_UDP_TXCOMP) + +/* pull OUT packet data from the endpoint's fifo */ +static int read_fifo (struct at91_ep *ep, struct at91_request *req) +{ + u32 __iomem *creg = ep->creg; + u8 __iomem *dreg = ep->creg + (AT91_UDP_FDR(0) - AT91_UDP_CSR(0)); + u32 csr; + u8 *buf; + unsigned int count, bufferspace, is_done; + + buf = req->req.buf + req->req.actual; + bufferspace = req->req.length - req->req.actual; + + /* + * there might be nothing to read if ep_queue() calls us, + * or if we already emptied both pingpong buffers + */ +rescan: + csr = __raw_readl(creg); + if ((csr & RX_DATA_READY) == 0) + return 0; + + count = (csr & AT91_UDP_RXBYTECNT) >> 16; + if (count > ep->ep.maxpacket) + count = ep->ep.maxpacket; + if (count > bufferspace) { + DBG("%s buffer overflow\n", ep->ep.name); + req->req.status = -EOVERFLOW; + count = bufferspace; + } + __raw_readsb(dreg, buf, count); + + /* release and swap pingpong mem bank */ + csr |= CLR_FX; + if (ep->is_pingpong) { + if (ep->fifo_bank == 0) { + csr &= ~(SET_FX | AT91_UDP_RX_DATA_BK0); + ep->fifo_bank = 1; + } else { + csr &= ~(SET_FX | AT91_UDP_RX_DATA_BK1); + ep->fifo_bank = 0; + } + } else + csr &= ~(SET_FX | AT91_UDP_RX_DATA_BK0); + __raw_writel(csr, creg); + + req->req.actual += count; + is_done = (count < ep->ep.maxpacket); + if (count == bufferspace) + is_done = 1; + + PACKET("%s %p out/%d%s\n", ep->ep.name, &req->req, count, + is_done ? " (done)" : ""); + + /* + * avoid extra trips through IRQ logic for packets already in + * the fifo ... maybe preventing an extra (expensive) OUT-NAK + */ + if (is_done) + done(ep, req, 0); + else if (ep->is_pingpong) { + bufferspace -= count; + buf += count; + goto rescan; + } + + return is_done; +} + +/* load fifo for an IN packet */ +static int write_fifo(struct at91_ep *ep, struct at91_request *req) +{ + u32 __iomem *creg = ep->creg; + u32 csr = __raw_readl(creg); + u8 __iomem *dreg = ep->creg + (AT91_UDP_FDR(0) - AT91_UDP_CSR(0)); + unsigned total, count, is_last; + + /* + * TODO: allow for writing two packets to the fifo ... that'll + * reduce the amount of IN-NAKing, but probably won't affect + * throughput much. (Unlike preventing OUT-NAKing!) + */ + + /* + * If ep_queue() calls us, the queue is empty and possibly in + * odd states like TXCOMP not yet cleared (we do it, saving at + * least one IRQ) or the fifo not yet being free. Those aren't + * issues normally (IRQ handler fast path). + */ + if (unlikely(csr & (AT91_UDP_TXCOMP | AT91_UDP_TXPKTRDY))) { + if (csr & AT91_UDP_TXCOMP) { + csr |= CLR_FX; + csr &= ~(SET_FX | AT91_UDP_TXCOMP); + __raw_writel(csr, creg); + csr = __raw_readl(creg); + } + if (csr & AT91_UDP_TXPKTRDY) + return 0; + } + + total = req->req.length - req->req.actual; + if (ep->ep.maxpacket < total) { + count = ep->ep.maxpacket; + is_last = 0; + } else { + count = total; + is_last = (count < ep->ep.maxpacket) || !req->req.zero; + } + + /* + * Write the packet, maybe it's a ZLP. + * + * NOTE: incrementing req->actual before we receive the ACK means + * gadget driver IN bytecounts can be wrong in fault cases. That's + * fixable with PIO drivers like this one (save "count" here, and + * do the increment later on TX irq), but not for most DMA hardware. + * + * So all gadget drivers must accept that potential error. Some + * hardware supports precise fifo status reporting, letting them + * recover when the actual bytecount matters (e.g. for USB Test + * and Measurement Class devices). + */ + __raw_writesb(dreg, req->req.buf + req->req.actual, count); + csr &= ~SET_FX; + csr |= CLR_FX | AT91_UDP_TXPKTRDY; + __raw_writel(csr, creg); + req->req.actual += count; + + PACKET("%s %p in/%d%s\n", ep->ep.name, &req->req, count, + is_last ? " (done)" : ""); + if (is_last) + done(ep, req, 0); + return is_last; +} + +static void nuke(struct at91_ep *ep, int status) +{ + struct at91_request *req; + + // terminer chaque requete dans la queue + ep->stopped = 1; + if (list_empty(&ep->queue)) + return; + + VDBG("%s %s\n", __FUNCTION__, ep->ep.name); + while (!list_empty(&ep->queue)) { + req = list_entry(ep->queue.next, struct at91_request, queue); + done(ep, req, status); + } +} + +/*-------------------------------------------------------------------------*/ + +static int at91_ep_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) +{ + struct at91_ep *ep = container_of(_ep, struct at91_ep, ep); + struct at91_udc *dev = ep->udc; + u16 maxpacket; + u32 tmp; + unsigned long flags; + + if (!_ep || !ep + || !desc || ep->desc + || _ep->name == ep0name + || desc->bDescriptorType != USB_DT_ENDPOINT + || (maxpacket = le16_to_cpu(desc->wMaxPacketSize)) == 0 + || maxpacket > ep->maxpacket) { + DBG("bad ep or descriptor\n"); + return -EINVAL; + } + + if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN) { + DBG("bogus device state\n"); + return -ESHUTDOWN; + } + + tmp = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; + switch (tmp) { + case USB_ENDPOINT_XFER_CONTROL: + DBG("only one control endpoint\n"); + return -EINVAL; + case USB_ENDPOINT_XFER_INT: + if (maxpacket > 64) + goto bogus_max; + break; + case USB_ENDPOINT_XFER_BULK: + switch (maxpacket) { + case 8: + case 16: + case 32: + case 64: + goto ok; + } +bogus_max: + DBG("bogus maxpacket %d\n", maxpacket); + return -EINVAL; + case USB_ENDPOINT_XFER_ISOC: + if (!ep->is_pingpong) { + DBG("iso requires double buffering\n"); + return -EINVAL; + } + break; + } + +ok: + local_irq_save(flags); + + /* initialize endpoint to match this descriptor */ + ep->is_in = (desc->bEndpointAddress & USB_DIR_IN) != 0; + ep->is_iso = (tmp == USB_ENDPOINT_XFER_ISOC); + ep->stopped = 0; + if (ep->is_in) + tmp |= 0x04; + tmp <<= 8; + tmp |= AT91_UDP_EPEDS; + __raw_writel(tmp, ep->creg); + + ep->desc = desc; + ep->ep.maxpacket = maxpacket; + + /* + * reset/init endpoint fifo. NOTE: leaves fifo_bank alone, + * since endpoint resets don't reset hw pingpong state. + */ + at91_udp_write(AT91_UDP_RST_EP, ep->int_mask); + at91_udp_write(AT91_UDP_RST_EP, 0); + + local_irq_restore(flags); + return 0; +} + +static int at91_ep_disable (struct usb_ep * _ep) +{ + struct at91_ep *ep = container_of(_ep, struct at91_ep, ep); + unsigned long flags; + + if (ep == &ep->udc->ep[0]) + return -EINVAL; + + local_irq_save(flags); + + nuke(ep, -ESHUTDOWN); + + /* restore the endpoint's pristine config */ + ep->desc = NULL; + ep->ep.maxpacket = ep->maxpacket; + + /* reset fifos and endpoint */ + if (ep->udc->clocked) { + at91_udp_write(AT91_UDP_RST_EP, ep->int_mask); + at91_udp_write(AT91_UDP_RST_EP, 0); + __raw_writel(0, ep->creg); + } + + local_irq_restore(flags); + return 0; +} + +/* + * this is a PIO-only driver, so there's nothing + * interesting for request or buffer allocation. + */ + +static struct usb_request *at91_ep_alloc_request (struct usb_ep *_ep, unsigned int gfp_flags) +{ + struct at91_request *req; + + req = kcalloc(1, sizeof (struct at91_request), SLAB_KERNEL); + if (!req) + return NULL; + + INIT_LIST_HEAD(&req->queue); + return &req->req; +} + +static void at91_ep_free_request(struct usb_ep *_ep, struct usb_request *_req) +{ + struct at91_request *req; + + req = container_of(_req, struct at91_request, req); + BUG_ON(!list_empty(&req->queue)); + kfree(req); +} + +static void *at91_ep_alloc_buffer( + struct usb_ep *_ep, + unsigned bytes, + dma_addr_t *dma, + gfp_t gfp_flags) +{ + *dma = ~0; + return kmalloc(bytes, gfp_flags); +} + +static void at91_ep_free_buffer( + struct usb_ep *ep, + void *buf, + dma_addr_t dma, + unsigned bytes) +{ + kfree(buf); +} + +static int at91_ep_queue(struct usb_ep *_ep, + struct usb_request *_req, gfp_t gfp_flags) +{ + struct at91_request *req; + struct at91_ep *ep; + struct at91_udc *dev; + int status; + unsigned long flags; + + req = container_of(_req, struct at91_request, req); + ep = container_of(_ep, struct at91_ep, ep); + + if (!_req || !_req->complete + || !_req->buf || !list_empty(&req->queue)) { + DBG("invalid request\n"); + return -EINVAL; + } + + if (!_ep || (!ep->desc && ep->ep.name != ep0name)) { + DBG("invalid ep\n"); + return -EINVAL; + } + + dev = ep->udc; + + if (!dev || !dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN) { + DBG("invalid device\n"); + return -EINVAL; + } + + _req->status = -EINPROGRESS; + _req->actual = 0; + + local_irq_save(flags); + + /* try to kickstart any empty and idle queue */ + if (list_empty(&ep->queue) && !ep->stopped) { + int is_ep0; + + /* + * If this control request has a non-empty DATA stage, this + * will start that stage. It works just like a non-control + * request (until the status stage starts, maybe early). + * + * If the data stage is empty, then this starts a successful + * IN/STATUS stage. (Unsuccessful ones use set_halt.) + */ + is_ep0 = (ep->ep.name == ep0name); + if (is_ep0) { + u32 tmp; + + if (!dev->req_pending) { + status = -EINVAL; + goto done; + } + + /* + * defer changing CONFG until after the gadget driver + * reconfigures the endpoints. + */ + if (dev->wait_for_config_ack) { + tmp = at91_udp_read(AT91_UDP_GLB_STAT); + tmp ^= AT91_UDP_CONFG; + VDBG("toggle config\n"); + at91_udp_write(AT91_UDP_GLB_STAT, tmp); + } + if (req->req.length == 0) { +ep0_in_status: + PACKET("ep0 in/status\n"); + status = 0; + tmp = __raw_readl(ep->creg); + tmp &= ~SET_FX; + tmp |= CLR_FX | AT91_UDP_TXPKTRDY; + __raw_writel(tmp, ep->creg); + dev->req_pending = 0; + goto done; + } + } + + if (ep->is_in) + status = write_fifo(ep, req); + else { + status = read_fifo(ep, req); + + /* IN/STATUS stage is otherwise triggered by irq */ + if (status && is_ep0) + goto ep0_in_status; + } + } else + status = 0; + + if (req && !status) { + list_add_tail (&req->queue, &ep->queue); + at91_udp_write(AT91_UDP_IER, ep->int_mask); + } +done: + local_irq_restore(flags); + return (status < 0) ? status : 0; +} + +static int at91_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req) +{ + struct at91_ep *ep; + struct at91_request *req; + + ep = container_of(_ep, struct at91_ep, ep); + if (!_ep || ep->ep.name == ep0name) + return -EINVAL; + + /* make sure it's actually queued on this endpoint */ + list_for_each_entry (req, &ep->queue, queue) { + if (&req->req == _req) + break; + } + if (&req->req != _req) + return -EINVAL; + + done(ep, req, -ECONNRESET); + return 0; +} + +static int at91_ep_set_halt(struct usb_ep *_ep, int value) +{ + struct at91_ep *ep = container_of(_ep, struct at91_ep, ep); + u32 __iomem *creg; + u32 csr; + unsigned long flags; + int status = 0; + + if (!_ep || ep->is_iso || !ep->udc->clocked) + return -EINVAL; + + creg = ep->creg; + local_irq_save(flags); + + csr = __raw_readl(creg); + + /* + * fail with still-busy IN endpoints, ensuring correct sequencing + * of data tx then stall. note that the fifo rx bytecount isn't + * completely accurate as a tx bytecount. + */ + if (ep->is_in && (!list_empty(&ep->queue) || (csr >> 16) != 0)) + status = -EAGAIN; + else { + csr |= CLR_FX; + csr &= ~SET_FX; + if (value) { + csr |= AT91_UDP_FORCESTALL; + VDBG("halt %s\n", ep->ep.name); + } else { + at91_udp_write(AT91_UDP_RST_EP, ep->int_mask); + at91_udp_write(AT91_UDP_RST_EP, 0); + csr &= ~AT91_UDP_FORCESTALL; + } + __raw_writel(csr, creg); + } + + local_irq_restore(flags); + return status; +} + +static struct usb_ep_ops at91_ep_ops = { + .enable = at91_ep_enable, + .disable = at91_ep_disable, + .alloc_request = at91_ep_alloc_request, + .free_request = at91_ep_free_request, + .alloc_buffer = at91_ep_alloc_buffer, + .free_buffer = at91_ep_free_buffer, + .queue = at91_ep_queue, + .dequeue = at91_ep_dequeue, + .set_halt = at91_ep_set_halt, + // there's only imprecise fifo status reporting +}; + +/*-------------------------------------------------------------------------*/ + +static int at91_get_frame(struct usb_gadget *gadget) +{ + if (!to_udc(gadget)->clocked) + return -EINVAL; + return at91_udp_read(AT91_UDP_FRM_NUM) & AT91_UDP_NUM; +} + +static int at91_wakeup(struct usb_gadget *gadget) +{ + struct at91_udc *udc = to_udc(gadget); + u32 glbstate; + int status = -EINVAL; + unsigned long flags; + + DBG("%s\n", __FUNCTION__ ); + local_irq_save(flags); + + if (!udc->clocked || !udc->suspended) + goto done; + + /* NOTE: some "early versions" handle ESR differently ... */ + + glbstate = at91_udp_read(AT91_UDP_GLB_STAT); + if (!(glbstate & AT91_UDP_ESR)) + goto done; + glbstate |= AT91_UDP_ESR; + at91_udp_write(AT91_UDP_GLB_STAT, glbstate); + +done: + local_irq_restore(flags); + return status; +} + +/* reinit == restore inital software state */ +static void udc_reinit(struct at91_udc *udc) +{ + u32 i; + + INIT_LIST_HEAD(&udc->gadget.ep_list); + INIT_LIST_HEAD(&udc->gadget.ep0->ep_list); + + for (i = 0; i < NUM_ENDPOINTS; i++) { + struct at91_ep *ep = &udc->ep[i]; + + if (i != 0) + list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list); + ep->desc = NULL; + ep->stopped = 0; + ep->fifo_bank = 0; + ep->ep.maxpacket = ep->maxpacket; + // initialiser une queue par endpoint + INIT_LIST_HEAD(&ep->queue); + } +} + +static void stop_activity(struct at91_udc *udc) +{ + struct usb_gadget_driver *driver = udc->driver; + int i; + + if (udc->gadget.speed == USB_SPEED_UNKNOWN) + driver = NULL; + udc->gadget.speed = USB_SPEED_UNKNOWN; + + for (i = 0; i < NUM_ENDPOINTS; i++) { + struct at91_ep *ep = &udc->ep[i]; + ep->stopped = 1; + nuke(ep, -ESHUTDOWN); + } + if (driver) + driver->disconnect(&udc->gadget); + + udc_reinit(udc); +} + +static void clk_on(struct at91_udc *udc) +{ + if (udc->clocked) + return; + udc->clocked = 1; + clk_enable(udc->iclk); + clk_enable(udc->fclk); +} + +static void clk_off(struct at91_udc *udc) +{ + if (!udc->clocked) + return; + udc->clocked = 0; + udc->gadget.speed = USB_SPEED_UNKNOWN; + clk_disable(udc->iclk); + clk_disable(udc->fclk); +} + +/* + * activate/deactivate link with host; minimize power usage for + * inactive links by cutting clocks and transceiver power. + */ +static void pullup(struct at91_udc *udc, int is_on) +{ + if (!udc->enabled || !udc->vbus) + is_on = 0; + DBG("%sactive\n", is_on ? "" : "in"); + if (is_on) { + clk_on(udc); + at91_udp_write(AT91_UDP_TXVC, 0); + at91_set_gpio_value(udc->board.pullup_pin, 1); + } else { + stop_activity(udc); + at91_udp_write(AT91_UDP_TXVC, AT91_UDP_TXVC_TXVDIS); + at91_set_gpio_value(udc->board.pullup_pin, 0); + clk_off(udc); + + // REVISIT: with transceiver disabled, will D- float + // so that a host would falsely detect a device? + } +} + +/* vbus is here! turn everything on that's ready */ +static int at91_vbus_session(struct usb_gadget *gadget, int is_active) +{ + struct at91_udc *udc = to_udc(gadget); + unsigned long flags; + + // VDBG("vbus %s\n", is_active ? "on" : "off"); + local_irq_save(flags); + udc->vbus = (is_active != 0); + pullup(udc, is_active); + local_irq_restore(flags); + return 0; +} + +static int at91_pullup(struct usb_gadget *gadget, int is_on) +{ + struct at91_udc *udc = to_udc(gadget); + unsigned long flags; + + local_irq_save(flags); + udc->enabled = is_on = !!is_on; + pullup(udc, is_on); + local_irq_restore(flags); + return 0; +} + +static int at91_set_selfpowered(struct usb_gadget *gadget, int is_on) +{ + struct at91_udc *udc = to_udc(gadget); + unsigned long flags; + + local_irq_save(flags); + udc->selfpowered = (is_on != 0); + local_irq_restore(flags); + return 0; +} + +static const struct usb_gadget_ops at91_udc_ops = { + .get_frame = at91_get_frame, + .wakeup = at91_wakeup, + .set_selfpowered = at91_set_selfpowered, + .vbus_session = at91_vbus_session, + .pullup = at91_pullup, + + /* + * VBUS-powered devices may also also want to support bigger + * power budgets after an appropriate SET_CONFIGURATION. + */ + // .vbus_power = at91_vbus_power, +}; + +/*-------------------------------------------------------------------------*/ + +static int handle_ep(struct at91_ep *ep) +{ + struct at91_request *req; + u32 __iomem *creg = ep->creg; + u32 csr = __raw_readl(creg); + + if (!list_empty(&ep->queue)) + req = list_entry(ep->queue.next, + struct at91_request, queue); + else + req = NULL; + + if (ep->is_in) { + if (csr & (AT91_UDP_STALLSENT | AT91_UDP_TXCOMP)) { + csr |= CLR_FX; + csr &= ~(SET_FX | AT91_UDP_STALLSENT | AT91_UDP_TXCOMP); + __raw_writel(csr, creg); + } + if (req) + return write_fifo(ep, req); + + } else { + if (csr & AT91_UDP_STALLSENT) { + /* STALLSENT bit == ISOERR */ + if (ep->is_iso && req) + req->req.status = -EILSEQ; + csr |= CLR_FX; + csr &= ~(SET_FX | AT91_UDP_STALLSENT); + __raw_writel(csr, creg); + csr = __raw_readl(creg); + } + if (req && (csr & RX_DATA_READY)) + return read_fifo(ep, req); + } + return 0; +} + +union setup { + u8 raw[8]; + struct usb_ctrlrequest r; +}; + +static void handle_setup(struct at91_udc *udc, struct at91_ep *ep, u32 csr) +{ + u32 __iomem *creg = ep->creg; + u8 __iomem *dreg = ep->creg + (AT91_UDP_FDR(0) - AT91_UDP_CSR(0)); + unsigned rxcount, i = 0; + u32 tmp; + union setup pkt; + int status = 0; + + /* read and ack SETUP; hard-fail for bogus packets */ + rxcount = (csr & AT91_UDP_RXBYTECNT) >> 16; + if (likely(rxcount == 8)) { + while (rxcount--) + pkt.raw[i++] = __raw_readb(dreg); + if (pkt.r.bRequestType & USB_DIR_IN) { + csr |= AT91_UDP_DIR; + ep->is_in = 1; + } else { + csr &= ~AT91_UDP_DIR; + ep->is_in = 0; + } + } else { + // REVISIT this happens sometimes under load; why?? + ERR("SETUP len %d, csr %08x\n", rxcount, csr); + status = -EINVAL; + } + csr |= CLR_FX; + csr &= ~(SET_FX | AT91_UDP_RXSETUP); + __raw_writel(csr, creg); + udc->wait_for_addr_ack = 0; + udc->wait_for_config_ack = 0; + ep->stopped = 0; + if (unlikely(status != 0)) + goto stall; + +#define w_index le16_to_cpu(pkt.r.wIndex) +#define w_value le16_to_cpu(pkt.r.wValue) +#define w_length le16_to_cpu(pkt.r.wLength) + + VDBG("SETUP %02x.%02x v%04x i%04x l%04x\n", + pkt.r.bRequestType, pkt.r.bRequest, + w_value, w_index, w_length); + + /* + * A few standard requests get handled here, ones that touch + * hardware ... notably for device and endpoint features. + */ + udc->req_pending = 1; + csr = __raw_readl(creg); + csr |= CLR_FX; + csr &= ~SET_FX; + switch ((pkt.r.bRequestType << 8) | pkt.r.bRequest) { + + case ((USB_TYPE_STANDARD|USB_RECIP_DEVICE) << 8) + | USB_REQ_SET_ADDRESS: + __raw_writel(csr | AT91_UDP_TXPKTRDY, creg); + udc->addr = w_value; + udc->wait_for_addr_ack = 1; + udc->req_pending = 0; + /* FADDR is set later, when we ack host STATUS */ + return; + + case ((USB_TYPE_STANDARD|USB_RECIP_DEVICE) << 8) + | USB_REQ_SET_CONFIGURATION: + tmp = at91_udp_read(AT91_UDP_GLB_STAT) & AT91_UDP_CONFG; + if (pkt.r.wValue) + udc->wait_for_config_ack = (tmp == 0); + else + udc->wait_for_config_ack = (tmp != 0); + if (udc->wait_for_config_ack) + VDBG("wait for config\n"); + /* CONFG is toggled later, if gadget driver succeeds */ + break; + + /* + * Hosts may set or clear remote wakeup status, and + * devices may report they're VBUS powered. + */ + case ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE) << 8) + | USB_REQ_GET_STATUS: + tmp = (udc->selfpowered << USB_DEVICE_SELF_POWERED); + if (at91_udp_read(AT91_UDP_GLB_STAT) & AT91_UDP_ESR) + tmp |= (1 << USB_DEVICE_REMOTE_WAKEUP); + PACKET("get device status\n"); + __raw_writeb(tmp, dreg); + __raw_writeb(0, dreg); + goto write_in; + /* then STATUS starts later, automatically */ + case ((USB_TYPE_STANDARD|USB_RECIP_DEVICE) << 8) + | USB_REQ_SET_FEATURE: + if (w_value != USB_DEVICE_REMOTE_WAKEUP) + goto stall; + tmp = at91_udp_read(AT91_UDP_GLB_STAT); + tmp |= AT91_UDP_ESR; + at91_udp_write(AT91_UDP_GLB_STAT, tmp); + goto succeed; + case ((USB_TYPE_STANDARD|USB_RECIP_DEVICE) << 8) + | USB_REQ_CLEAR_FEATURE: + if (w_value != USB_DEVICE_REMOTE_WAKEUP) + goto stall; + tmp = at91_udp_read(AT91_UDP_GLB_STAT); + tmp &= ~AT91_UDP_ESR; + at91_udp_write(AT91_UDP_GLB_STAT, tmp); + goto succeed; + + /* + * Interfaces have no feature settings; this is pretty useless. + * we won't even insist the interface exists... + */ + case ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE) << 8) + | USB_REQ_GET_STATUS: + PACKET("get interface status\n"); + __raw_writeb(0, dreg); + __raw_writeb(0, dreg); + goto write_in; + /* then STATUS starts later, automatically */ + case ((USB_TYPE_STANDARD|USB_RECIP_INTERFACE) << 8) + | USB_REQ_SET_FEATURE: + case ((USB_TYPE_STANDARD|USB_RECIP_INTERFACE) << 8) + | USB_REQ_CLEAR_FEATURE: + goto stall; + + /* + * Hosts may clear bulk/intr endpoint halt after the gadget + * driver sets it (not widely used); or set it (for testing) + */ + case ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT) << 8) + | USB_REQ_GET_STATUS: + tmp = w_index & USB_ENDPOINT_NUMBER_MASK; + ep = &udc->ep[tmp]; + if (tmp > NUM_ENDPOINTS || (tmp && !ep->desc)) + goto stall; + + if (tmp) { + if ((w_index & USB_DIR_IN)) { + if (!ep->is_in) + goto stall; + } else if (ep->is_in) + goto stall; + } + PACKET("get %s status\n", ep->ep.name); + if (__raw_readl(ep->creg) & AT91_UDP_FORCESTALL) + tmp = (1 << USB_ENDPOINT_HALT); + else + tmp = 0; + __raw_writeb(tmp, dreg); + __raw_writeb(0, dreg); + goto write_in; + /* then STATUS starts later, automatically */ + case ((USB_TYPE_STANDARD|USB_RECIP_ENDPOINT) << 8) + | USB_REQ_SET_FEATURE: + tmp = w_index & USB_ENDPOINT_NUMBER_MASK; + ep = &udc->ep[tmp]; + if (w_value != USB_ENDPOINT_HALT || tmp > NUM_ENDPOINTS) + goto stall; + if (!ep->desc || ep->is_iso) + goto stall; + if ((w_index & USB_DIR_IN)) { + if (!ep->is_in) + goto stall; + } else if (ep->is_in) + goto stall; + + tmp = __raw_readl(ep->creg); + tmp &= ~SET_FX; + tmp |= CLR_FX | AT91_UDP_FORCESTALL; + __raw_writel(tmp, ep->creg); + goto succeed; + case ((USB_TYPE_STANDARD|USB_RECIP_ENDPOINT) << 8) + | USB_REQ_CLEAR_FEATURE: + tmp = w_index & USB_ENDPOINT_NUMBER_MASK; + ep = &udc->ep[tmp]; + if (w_value != USB_ENDPOINT_HALT || tmp > NUM_ENDPOINTS) + goto stall; + if (tmp == 0) + goto succeed; + if (!ep->desc || ep->is_iso) + goto stall; + if ((w_index & USB_DIR_IN)) { + if (!ep->is_in) + goto stall; + } else if (ep->is_in) + goto stall; + + at91_udp_write(AT91_UDP_RST_EP, ep->int_mask); + at91_udp_write(AT91_UDP_RST_EP, 0); + tmp = __raw_readl(ep->creg); + tmp |= CLR_FX; + tmp &= ~(SET_FX | AT91_UDP_FORCESTALL); + __raw_writel(tmp, ep->creg); + if (!list_empty(&ep->queue)) + handle_ep(ep); + goto succeed; + } + +#undef w_value +#undef w_index +#undef w_length + + /* pass request up to the gadget driver */ + status = udc->driver->setup(&udc->gadget, &pkt.r); + if (status < 0) { +stall: + VDBG("req %02x.%02x protocol STALL; stat %d\n", + pkt.r.bRequestType, pkt.r.bRequest, status); + csr |= AT91_UDP_FORCESTALL; + __raw_writel(csr, creg); + udc->req_pending = 0; + } + return; + +succeed: + /* immediate successful (IN) STATUS after zero length DATA */ + PACKET("ep0 in/status\n"); +write_in: + csr |= AT91_UDP_TXPKTRDY; + __raw_writel(csr, creg); + udc->req_pending = 0; + return; +} + +static void handle_ep0(struct at91_udc *udc) +{ + struct at91_ep *ep0 = &udc->ep[0]; + u32 __iomem *creg = ep0->creg; + u32 csr = __raw_readl(creg); + struct at91_request *req; + + if (unlikely(csr & AT91_UDP_STALLSENT)) { + nuke(ep0, -EPROTO); + udc->req_pending = 0; + csr |= CLR_FX; + csr &= ~(SET_FX | AT91_UDP_STALLSENT | AT91_UDP_FORCESTALL); + __raw_writel(csr, creg); + VDBG("ep0 stalled\n"); + csr = __raw_readl(creg); + } + if (csr & AT91_UDP_RXSETUP) { + nuke(ep0, 0); + udc->req_pending = 0; + handle_setup(udc, ep0, csr); + return; + } + + if (list_empty(&ep0->queue)) + req = NULL; + else + req = list_entry(ep0->queue.next, struct at91_request, queue); + + /* host ACKed an IN packet that we sent */ + if (csr & AT91_UDP_TXCOMP) { + csr |= CLR_FX; + csr &= ~(SET_FX | AT91_UDP_TXCOMP); + + /* write more IN DATA? */ + if (req && ep0->is_in) { + if (handle_ep(ep0)) + udc->req_pending = 0; + + /* + * Ack after: + * - last IN DATA packet (including GET_STATUS) + * - IN/STATUS for OUT DATA + * - IN/STATUS for any zero-length DATA stage + * except for the IN DATA case, the host should send + * an OUT status later, which we'll ack. + */ + } else { + udc->req_pending = 0; + __raw_writel(csr, creg); + + /* + * SET_ADDRESS takes effect only after the STATUS + * (to the original address) gets acked. + */ + if (udc->wait_for_addr_ack) { + u32 tmp; + + at91_udp_write(AT91_UDP_FADDR, AT91_UDP_FEN | udc->addr); + tmp = at91_udp_read(AT91_UDP_GLB_STAT); + tmp &= ~AT91_UDP_FADDEN; + if (udc->addr) + tmp |= AT91_UDP_FADDEN; + at91_udp_write(AT91_UDP_GLB_STAT, tmp); + + udc->wait_for_addr_ack = 0; + VDBG("address %d\n", udc->addr); + } + } + } + + /* OUT packet arrived ... */ + else if (csr & AT91_UDP_RX_DATA_BK0) { + csr |= CLR_FX; + csr &= ~(SET_FX | AT91_UDP_RX_DATA_BK0); + + /* OUT DATA stage */ + if (!ep0->is_in) { + if (req) { + if (handle_ep(ep0)) { + /* send IN/STATUS */ + PACKET("ep0 in/status\n"); + csr = __raw_readl(creg); + csr &= ~SET_FX; + csr |= CLR_FX | AT91_UDP_TXPKTRDY; + __raw_writel(csr, creg); + udc->req_pending = 0; + } + } else if (udc->req_pending) { + /* + * AT91 hardware has a hard time with this + * "deferred response" mode for control-OUT + * transfers. (For control-IN it's fine.) + * + * The normal solution leaves OUT data in the + * fifo until the gadget driver is ready. + * We couldn't do that here without disabling + * the IRQ that tells about SETUP packets, + * e.g. when the host gets impatient... + * + * Working around it by copying into a buffer + * would almost be a non-deferred response, + * except that it wouldn't permit reliable + * stalling of the request. Instead, demand + * that gadget drivers not use this mode. + */ + DBG("no control-OUT deferred responses!\n"); + __raw_writel(csr | AT91_UDP_FORCESTALL, creg); + udc->req_pending = 0; + } + + /* STATUS stage for control-IN; ack. */ + } else { + PACKET("ep0 out/status ACK\n"); + __raw_writel(csr, creg); + + /* "early" status stage */ + if (req) + done(ep0, req, 0); + } + } +} + +static irqreturn_t at91_udc_irq (int irq, void *_udc, struct pt_regs *r) +{ + struct at91_udc *udc = _udc; + u32 rescans = 5; + + while (rescans--) { + u32 status = at91_udp_read(AT91_UDP_ISR); + + status &= at91_udp_read(AT91_UDP_IMR); + if (!status) + break; + + /* USB reset irq: not maskable */ + if (status & AT91_UDP_ENDBUSRES) { + at91_udp_write(AT91_UDP_IDR, ~MINIMUS_INTERRUPTUS); + at91_udp_write(AT91_UDP_IER, MINIMUS_INTERRUPTUS); + /* Atmel code clears this irq twice */ + at91_udp_write(AT91_UDP_ICR, AT91_UDP_ENDBUSRES); + at91_udp_write(AT91_UDP_ICR, AT91_UDP_ENDBUSRES); + VDBG("end bus reset\n"); + udc->addr = 0; + stop_activity(udc); + + /* enable ep0 */ + at91_udp_write(AT91_UDP_CSR(0), AT91_UDP_EPEDS | AT91_UDP_EPTYPE_CTRL); + udc->gadget.speed = USB_SPEED_FULL; + udc->suspended = 0; + at91_udp_write(AT91_UDP_IER, AT91_UDP_EP(0)); + + /* + * NOTE: this driver keeps clocks off unless the + * USB host is present. That saves power, and also + * eliminates IRQs (reset, resume, suspend) that can + * otherwise flood from the controller. If your + * board doesn't support VBUS detection, suspend and + * resume irq logic may need more attention... + */ + + /* host initiated suspend (3+ms bus idle) */ + } else if (status & AT91_UDP_RXSUSP) { + at91_udp_write(AT91_UDP_IDR, AT91_UDP_RXSUSP); + at91_udp_write(AT91_UDP_IER, AT91_UDP_RXRSM); + at91_udp_write(AT91_UDP_ICR, AT91_UDP_RXSUSP); + // VDBG("bus suspend\n"); + if (udc->suspended) + continue; + udc->suspended = 1; + + /* + * NOTE: when suspending a VBUS-powered device, the + * gadget driver should switch into slow clock mode + * and then into standby to avoid drawing more than + * 500uA power (2500uA for some high-power configs). + */ + if (udc->driver && udc->driver->suspend) + udc->driver->suspend(&udc->gadget); + + /* host initiated resume */ + } else if (status & AT91_UDP_RXRSM) { + at91_udp_write(AT91_UDP_IDR, AT91_UDP_RXRSM); + at91_udp_write(AT91_UDP_IER, AT91_UDP_RXSUSP); + at91_udp_write(AT91_UDP_ICR, AT91_UDP_RXRSM); + // VDBG("bus resume\n"); + if (!udc->suspended) + continue; + udc->suspended = 0; + + /* + * NOTE: for a VBUS-powered device, the gadget driver + * would normally want to switch out of slow clock + * mode into normal mode. + */ + if (udc->driver && udc->driver->resume) + udc->driver->resume(&udc->gadget); + + /* endpoint IRQs are cleared by handling them */ + } else { + int i; + unsigned mask = 1; + struct at91_ep *ep = &udc->ep[1]; + + if (status & mask) + handle_ep0(udc); + for (i = 1; i < NUM_ENDPOINTS; i++) { + mask <<= 1; + if (status & mask) + handle_ep(ep); + ep++; + } + } + } + + return IRQ_HANDLED; +} + +/*-------------------------------------------------------------------------*/ + +static struct at91_udc controller = { + .gadget = { + .ops = &at91_udc_ops, + .ep0 = &controller.ep[0].ep, + .name = driver_name, + .dev = { + .bus_id = "gadget" + } + }, + .ep[0] = { + .ep = { + .name = ep0name, + .ops = &at91_ep_ops, + }, + .udc = &controller, + .maxpacket = 8, + .creg = (void __iomem *)(AT91_VA_BASE_UDP + AT91_UDP_CSR(0)), + .int_mask = 1 << 0, + }, + .ep[1] = { + .ep = { + .name = "ep1", + .ops = &at91_ep_ops, + }, + .udc = &controller, + .is_pingpong = 1, + .maxpacket = 64, + .creg = (void __iomem *)(AT91_VA_BASE_UDP + AT91_UDP_CSR(1)), + .int_mask = 1 << 1, + }, + .ep[2] = { + .ep = { + .name = "ep2", + .ops = &at91_ep_ops, + }, + .udc = &controller, + .is_pingpong = 1, + .maxpacket = 64, + .creg = (void __iomem *)(AT91_VA_BASE_UDP + AT91_UDP_CSR(2)), + .int_mask = 1 << 2, + }, + .ep[3] = { + .ep = { + /* could actually do bulk too */ + .name = "ep3-int", + .ops = &at91_ep_ops, + }, + .udc = &controller, + .maxpacket = 8, + .creg = (void __iomem *)(AT91_VA_BASE_UDP + AT91_UDP_CSR(3)), + .int_mask = 1 << 3, + }, + .ep[4] = { + .ep = { + .name = "ep4", + .ops = &at91_ep_ops, + }, + .udc = &controller, + .is_pingpong = 1, + .maxpacket = 256, + .creg = (void __iomem *)(AT91_VA_BASE_UDP + AT91_UDP_CSR(4)), + .int_mask = 1 << 4, + }, + .ep[5] = { + .ep = { + .name = "ep5", + .ops = &at91_ep_ops, + }, + .udc = &controller, + .is_pingpong = 1, + .maxpacket = 256, + .creg = (void __iomem *)(AT91_VA_BASE_UDP + AT91_UDP_CSR(5)), + .int_mask = 1 << 5, + }, + /* ep6 and ep7 are also reserved */ +}; + +static irqreturn_t at91_vbus_irq(int irq, void *_udc, struct pt_regs *r) +{ + struct at91_udc *udc = _udc; + unsigned value; + + /* vbus needs at least brief debouncing */ + udelay(10); + value = at91_get_gpio_value(udc->board.vbus_pin); + if (value != udc->vbus) + at91_vbus_session(&udc->gadget, value); + + return IRQ_HANDLED; +} + +int usb_gadget_register_driver (struct usb_gadget_driver *driver) +{ + struct at91_udc *udc = &controller; + int retval; + + if (!driver + || driver->speed != USB_SPEED_FULL + || !driver->bind + || !driver->unbind + || !driver->setup) { + DBG("bad parameter.\n"); + return -EINVAL; + } + + if (udc->driver) { + DBG("UDC already has a gadget driver\n"); + return -EBUSY; + } + + udc->driver = driver; + udc->gadget.dev.driver = &driver->driver; + udc->gadget.dev.driver_data = &driver->driver; + udc->enabled = 1; + udc->selfpowered = 1; + + retval = driver->bind(&udc->gadget); + if (retval) { + DBG("driver->bind() returned %d\n", retval); + udc->driver = NULL; + return retval; + } + + local_irq_disable(); + pullup(udc, 1); + local_irq_enable(); + + DBG("bound to %s\n", driver->driver.name); + return 0; +} +EXPORT_SYMBOL (usb_gadget_register_driver); + +int usb_gadget_unregister_driver (struct usb_gadget_driver *driver) +{ + struct at91_udc *udc = &controller; + + if (!driver || driver != udc->driver) + return -EINVAL; + + local_irq_disable(); + udc->enabled = 0; + pullup(udc, 0); + local_irq_enable(); + + driver->unbind(&udc->gadget); + udc->driver = NULL; + + DBG("unbound from %s\n", driver->driver.name); + return 0; +} +EXPORT_SYMBOL (usb_gadget_unregister_driver); + +/*-------------------------------------------------------------------------*/ + +static void at91udc_shutdown(struct platform_device *dev) +{ + /* force disconnect on reboot */ + pullup(platform_get_drvdata(dev), 0); +} + +static int __devinit at91udc_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct at91_udc *udc; + int retval; + + if (!dev->platform_data) { + /* small (so we copy it) but critical! */ + DBG("missing platform_data\n"); + return -ENODEV; + } + + if (!request_mem_region(AT91_BASE_UDP, SZ_16K, driver_name)) { + DBG("someone's using UDC memory\n"); + return -EBUSY; + } + + /* init software state */ + udc = &controller; + udc->gadget.dev.parent = dev; + udc->board = *(struct at91_udc_data *) dev->platform_data; + udc->pdev = pdev; + udc_reinit(udc); + udc->enabled = 0; + + /* get interface and function clocks */ + udc->iclk = clk_get(dev, "udc_clk"); + udc->fclk = clk_get(dev, "udpck"); + if (IS_ERR(udc->iclk) || IS_ERR(udc->fclk)) { + DBG("clocks missing\n"); + return -ENODEV; + } + + retval = device_register(&udc->gadget.dev); + if (retval < 0) + goto fail0; + + /* disable everything until there's a gadget driver and vbus */ + pullup(udc, 0); + + /* request UDC and maybe VBUS irqs */ + if (request_irq(AT91_ID_UDP, at91_udc_irq, SA_INTERRUPT, driver_name, udc)) { + DBG("request irq %d failed\n", AT91_ID_UDP); + retval = -EBUSY; + goto fail1; + } + if (udc->board.vbus_pin > 0) { + if (request_irq(udc->board.vbus_pin, at91_vbus_irq, SA_INTERRUPT, driver_name, udc)) { + DBG("request vbus irq %d failed\n", udc->board.vbus_pin); + free_irq(AT91_ID_UDP, udc); + retval = -EBUSY; + goto fail1; + } + } else { + DBG("no VBUS detection, assuming always-on\n"); + udc->vbus = 1; + } + dev_set_drvdata(dev, udc); + create_debug_file(udc); + + INFO("%s version %s\n", driver_name, DRIVER_VERSION); + return 0; + +fail1: + device_unregister(&udc->gadget.dev); +fail0: + release_mem_region(AT91_VA_BASE_UDP, SZ_16K); + DBG("%s probe failed, %d\n", driver_name, retval); + return retval; +} + +static int __devexit at91udc_remove(struct platform_device *dev) +{ + struct at91_udc *udc = platform_get_drvdata(dev); + + DBG("remove\n"); + + pullup(udc, 0); + + if (udc->driver != 0) + usb_gadget_unregister_driver(udc->driver); + + remove_debug_file(udc); + if (udc->board.vbus_pin > 0) + free_irq(udc->board.vbus_pin, udc); + free_irq(AT91_ID_UDP, udc); + device_unregister(&udc->gadget.dev); + release_mem_region(AT91_BASE_UDP, SZ_16K); + + clk_put(udc->iclk); + clk_put(udc->fclk); + + return 0; +} + +#ifdef CONFIG_PM +static int at91udc_suspend(struct platform_device *dev, u32 state, u32 level) +{ + struct at91_udc *udc = platform_get_drvdata(dev); + + /* + * The "safe" suspend transitions are opportunistic ... e.g. when + * the USB link is suspended (48MHz clock autogated off), or when + * it's disconnected (programmatically gated off, elsewhere). + * Then we can suspend, and the chip can enter slow clock mode. + * + * The problem case is some component (user mode?) suspending this + * device while it's active, with the 48 MHz clock in use. There + * are two basic approaches: (a) veto suspend levels involving slow + * clock mode, (b) disconnect, so 48 MHz will no longer be in use + * and we can enter slow clock mode. This uses (b) for now, since + * it's simplest until AT91 PM exists and supports the other option. + */ + if (udc->vbus && !udc->suspended) + pullup(udc, 0); + return 0; +} + +static int at91udc_resume(struct platform_device *dev, u32 level) +{ + struct at91_udc *udc = platform_get_drvdata(dev); + + /* maybe reconnect to host; if so, clocks on */ + pullup(udc, 1); + return 0; +} +#else +#define at91udc_suspend NULL +#define at91udc_resume NULL +#endif + +static struct platform_driver at91_udc = { + .probe = at91udc_probe, + .remove = __devexit_p(at91udc_remove), + .shutdown = at91udc_shutdown, + .suspend = at91udc_suspend, + .resume = at91udc_resume, + .driver = { + .name = (char *) driver_name, + .owner = THIS_MODULE, + }, +}; + +static int __devinit udc_init_module(void) +{ + return platform_driver_register(&at91_udc); +} +module_init(udc_init_module); + +static void __devexit udc_exit_module(void) +{ + platform_driver_unregister(&at91_udc); +} +module_exit(udc_exit_module); + +MODULE_DESCRIPTION("AT91RM9200 udc driver"); +MODULE_AUTHOR("Thomas Rathbone, David Brownell"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/at91_udc.h b/drivers/usb/gadget/at91_udc.h new file mode 100644 index 0000000..5a4799c --- /dev/null +++ b/drivers/usb/gadget/at91_udc.h @@ -0,0 +1,181 @@ +/* + * Copyright (C) 2004 by Thomas Rathbone, HP Labs + * Copyright (C) 2005 by Ivan Kokshaysky + * Copyright (C) 2006 by SAN People + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the + * Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef AT91_UDC_H +#define AT91_UDC_H + +/* + * USB Device Port (UDP) registers. + * Based on AT91RM9200 datasheet revision E. + */ + +#define AT91_UDP_FRM_NUM 0x00 /* Frame Number Register */ +#define AT91_UDP_NUM (0x7ff << 0) /* Frame Number */ +#define AT91_UDP_FRM_ERR (1 << 16) /* Frame Error */ +#define AT91_UDP_FRM_OK (1 << 17) /* Frame OK */ + +#define AT91_UDP_GLB_STAT 0x04 /* Global State Register */ +#define AT91_UDP_FADDEN (1 << 0) /* Function Address Enable */ +#define AT91_UDP_CONFG (1 << 1) /* Configured */ +#define AT91_UDP_ESR (1 << 2) /* Enable Send Resume */ +#define AT91_UDP_RSMINPR (1 << 3) /* Resume has been sent */ +#define AT91_UDP_RMWUPE (1 << 4) /* Remote Wake Up Enable */ + +#define AT91_UDP_FADDR 0x08 /* Function Address Register */ +#define AT91_UDP_FADD (0x7f << 0) /* Function Address Value */ +#define AT91_UDP_FEN (1 << 8) /* Function Enable */ + +#define AT91_UDP_IER 0x10 /* Interrupt Enable Register */ +#define AT91_UDP_IDR 0x14 /* Interrupt Disable Register */ +#define AT91_UDP_IMR 0x18 /* Interrupt Mask Register */ + +#define AT91_UDP_ISR 0x1c /* Interrupt Status Register */ +#define AT91_UDP_EP(n) (1 << (n)) /* Endpoint Interrupt Status */ +#define AT91_UDP_RXSUSP (1 << 8) /* USB Suspend Interrupt Status */ +#define AT91_UDP_RXRSM (1 << 9) /* USB Resume Interrupt Status */ +#define AT91_UDP_EXTRSM (1 << 10) /* External Resume Interrupt Status */ +#define AT91_UDP_SOFINT (1 << 11) /* Start of Frame Interrupt Status */ +#define AT91_UDP_ENDBUSRES (1 << 12) /* End of Bus Reset Interrpt Status */ +#define AT91_UDP_WAKEUP (1 << 13) /* USB Wakeup Interrupt Status */ + +#define AT91_UDP_ICR 0x20 /* Interrupt Clear Register */ +#define AT91_UDP_RST_EP 0x28 /* Reset Endpoint Register */ + +#define AT91_UDP_CSR(n) (0x30+((n)*4)) /* Endpoint Control/Status Registers 0-7 */ +#define AT91_UDP_TXCOMP (1 << 0) /* Generates IN packet with data previously written in DPR */ +#define AT91_UDP_RX_DATA_BK0 (1 << 1) /* Receive Data Bank 0 */ +#define AT91_UDP_RXSETUP (1 << 2) /* Send STALL to the host */ +#define AT91_UDP_STALLSENT (1 << 3) /* Stall Sent / Isochronous error (Isochronous endpoints) */ +#define AT91_UDP_TXPKTRDY (1 << 4) /* Transmit Packet Ready */ +#define AT91_UDP_FORCESTALL (1 << 5) /* Force Stall */ +#define AT91_UDP_RX_DATA_BK1 (1 << 6) /* Receive Data Bank 1 */ +#define AT91_UDP_DIR (1 << 7) /* Transfer Direction */ +#define AT91_UDP_EPTYPE (7 << 8) /* Endpoint Type */ +#define AT91_UDP_EPTYPE_CTRL (0 << 8) +#define AT91_UDP_EPTYPE_ISO_OUT (1 << 8) +#define AT91_UDP_EPTYPE_BULK_OUT (2 << 8) +#define AT91_UDP_EPTYPE_INT_OUT (3 << 8) +#define AT91_UDP_EPTYPE_ISO_IN (5 << 8) +#define AT91_UDP_EPTYPE_BULK_IN (6 << 8) +#define AT91_UDP_EPTYPE_INT_IN (7 << 8) +#define AT91_UDP_DTGLE (1 << 11) /* Data Toggle */ +#define AT91_UDP_EPEDS (1 << 15) /* Endpoint Enable/Disable */ +#define AT91_UDP_RXBYTECNT (0x7ff << 16) /* Number of bytes in FIFO */ + +#define AT91_UDP_FDR(n) (0x50+((n)*4)) /* Endpoint FIFO Data Registers 0-7 */ + +#define AT91_UDP_TXVC 0x74 /* Transceiver Control Register */ +#define AT91_UDP_TXVC_TXVDIS (1 << 8) /* Transceiver Disable */ + + +/*-------------------------------------------------------------------------*/ + +/* + * controller driver data structures + */ + +#define NUM_ENDPOINTS 6 + +/* + * hardware won't disable bus reset, or resume while the controller + * is suspended ... watching suspend helps keep the logic symmetric. + */ +#define MINIMUS_INTERRUPTUS \ + (AT91_UDP_ENDBUSRES | AT91_UDP_RXRSM | AT91_UDP_RXSUSP) + +struct at91_ep { + struct usb_ep ep; + struct list_head queue; + struct at91_udc *udc; + void __iomem *creg; + + unsigned maxpacket:16; + u8 int_mask; + unsigned is_pingpong:1; + + unsigned stopped:1; + unsigned is_in:1; + unsigned is_iso:1; + unsigned fifo_bank:1; + + const struct usb_endpoint_descriptor + *desc; +}; + +/* + * driver is non-SMP, and just blocks IRQs whenever it needs + * access protection for chip registers or driver state + */ +struct at91_udc { + struct usb_gadget gadget; + struct at91_ep ep[NUM_ENDPOINTS]; + struct usb_gadget_driver *driver; + unsigned vbus:1; + unsigned enabled:1; + unsigned clocked:1; + unsigned suspended:1; + unsigned req_pending:1; + unsigned wait_for_addr_ack:1; + unsigned wait_for_config_ack:1; + unsigned selfpowered:1; + u8 addr; + struct at91_udc_data board; + struct clk *iclk, *fclk; + struct platform_device *pdev; + struct proc_dir_entry *pde; +}; + +static inline struct at91_udc *to_udc(struct usb_gadget *g) +{ + return container_of(g, struct at91_udc, gadget); +} + +struct at91_request { + struct usb_request req; + struct list_head queue; +}; + +/*-------------------------------------------------------------------------*/ + +#ifdef DEBUG +#define DBG(stuff...) printk(KERN_DEBUG "udc: " stuff) +#else +#define DBG(stuff...) do{}while(0) +#endif + +#ifdef VERBOSE +# define VDBG DBG +#else +# define VDBG(stuff...) do{}while(0) +#endif + +#ifdef PACKET_TRACE +# define PACKET VDBG +#else +# define PACKET(stuff...) do{}while(0) +#endif + +#define ERR(stuff...) printk(KERN_ERR "udc: " stuff) +#define WARN(stuff...) printk(KERN_WARNING "udc: " stuff) +#define INFO(stuff...) printk(KERN_INFO "udc: " stuff) + +#endif + diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 9734cb7..42ce41d 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -478,10 +478,9 @@ dummy_alloc_request (struct usb_ep *_ep, gfp_t mem_flags) return NULL; ep = usb_ep_to_dummy_ep (_ep); - req = kmalloc (sizeof *req, mem_flags); + req = kzalloc(sizeof(*req), mem_flags); if (!req) return NULL; - memset (req, 0, sizeof *req); INIT_LIST_HEAD (&req->queue); return &req->req; } diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index afc84cf..c3d8e5c 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -182,33 +182,37 @@ struct eth_dev { * parameters are in UTF-8 (superset of ASCII's 7 bit characters). */ -static ushort __initdata idVendor; +static ushort idVendor; module_param(idVendor, ushort, S_IRUGO); MODULE_PARM_DESC(idVendor, "USB Vendor ID"); -static ushort __initdata idProduct; +static ushort idProduct; module_param(idProduct, ushort, S_IRUGO); MODULE_PARM_DESC(idProduct, "USB Product ID"); -static ushort __initdata bcdDevice; +static ushort bcdDevice; module_param(bcdDevice, ushort, S_IRUGO); MODULE_PARM_DESC(bcdDevice, "USB Device version (BCD)"); -static char *__initdata iManufacturer; +static char *iManufacturer; module_param(iManufacturer, charp, S_IRUGO); MODULE_PARM_DESC(iManufacturer, "USB Manufacturer string"); -static char *__initdata iProduct; +static char *iProduct; module_param(iProduct, charp, S_IRUGO); MODULE_PARM_DESC(iProduct, "USB Product string"); +static char *iSerialNumber; +module_param(iSerialNumber, charp, S_IRUGO); +MODULE_PARM_DESC(iSerialNumber, "SerialNumber"); + /* initial value, changed by "ifconfig usb0 hw ether xx:xx:xx:xx:xx:xx" */ -static char *__initdata dev_addr; +static char *dev_addr; module_param(dev_addr, charp, S_IRUGO); MODULE_PARM_DESC(dev_addr, "Device Ethernet Address"); /* this address is invisible to ifconfig */ -static char *__initdata host_addr; +static char *host_addr; module_param(host_addr, charp, S_IRUGO); MODULE_PARM_DESC(host_addr, "Host Ethernet Address"); @@ -253,6 +257,14 @@ MODULE_PARM_DESC(host_addr, "Host Ethernet Address"); #define DEV_CONFIG_CDC #endif +#ifdef CONFIG_USB_GADGET_MUSBHSFC +#define DEV_CONFIG_CDC +#endif + +#ifdef CONFIG_USB_GADGET_MUSBHDRC +#define DEV_CONFIG_CDC +#endif + /* For CDC-incapable hardware, choose the simple cdc subset. * Anything that talks bulk (without notable bugs) can do this. @@ -395,6 +407,7 @@ static inline int BITRATE(struct usb_gadget *g) #define STRING_CDC 7 #define STRING_SUBSET 8 #define STRING_RNDIS 9 +#define STRING_SERIALNUMBER 10 /* holds our biggest descriptor (or RNDIS response) */ #define USB_BUFSIZ 256 @@ -862,6 +875,7 @@ static inline void __init hs_subset_descriptors(void) static char manufacturer [50]; static char product_desc [40] = DRIVER_DESC; +static char serial_number [20]; #ifdef DEV_CONFIG_CDC /* address that the host will use ... usually assigned at random */ @@ -872,6 +886,7 @@ static char ethaddr [2 * ETH_ALEN + 1]; static struct usb_string strings [] = { { STRING_MANUFACTURER, manufacturer, }, { STRING_PRODUCT, product_desc, }, + { STRING_SERIALNUMBER, serial_number, }, { STRING_DATA, "Ethernet Data", }, #ifdef DEV_CONFIG_CDC { STRING_CDC, "CDC Ethernet", }, @@ -1549,7 +1564,8 @@ static int eth_change_mtu (struct net_device *net, int new_mtu) { struct eth_dev *dev = netdev_priv(net); - // FIXME if rndis, don't change while link's live + if (dev->rndis) + return -EBUSY; if (new_mtu <= ETH_HLEN || new_mtu > ETH_FRAME_LEN) return -ERANGE; @@ -2116,7 +2132,7 @@ eth_req_free (struct usb_ep *ep, struct usb_request *req) } -static void +static void __exit eth_unbind (struct usb_gadget *gadget) { struct eth_dev *dev = get_gadget_data (gadget); @@ -2153,7 +2169,7 @@ static u8 __init nibble (unsigned char c) return 0; } -static void __init get_ether_addr (const char *str, u8 *dev_addr) +static int __init get_ether_addr(const char *str, u8 *dev_addr) { if (str) { unsigned i; @@ -2168,9 +2184,10 @@ static void __init get_ether_addr (const char *str, u8 *dev_addr) dev_addr [i] = num; } if (is_valid_ether_addr (dev_addr)) - return; + return 0; } random_ether_addr(dev_addr); + return 1; } static int __init @@ -2268,6 +2285,10 @@ eth_bind (struct usb_gadget *gadget) strlcpy (manufacturer, iManufacturer, sizeof manufacturer); if (iProduct) strlcpy (product_desc, iProduct, sizeof product_desc); + if (iSerialNumber) { + device_desc.iSerialNumber = STRING_SERIALNUMBER, + strlcpy(serial_number, iSerialNumber, sizeof serial_number); + } /* all we really need is bulk IN/OUT */ usb_ep_autoconfig_reset (gadget); @@ -2377,9 +2398,13 @@ autoconf_fail: * The host side address is used with CDC and RNDIS, and commonly * ends up in a persistent config database. */ - get_ether_addr(dev_addr, net->dev_addr); + if (get_ether_addr(dev_addr, net->dev_addr)) + dev_warn(&gadget->dev, + "using random %s ethernet address\n", "self"); if (cdc || rndis) { - get_ether_addr(host_addr, dev->host_mac); + if (get_ether_addr(host_addr, dev->host_mac)) + dev_warn(&gadget->dev, + "using random %s ethernet address\n", "host"); #ifdef DEV_CONFIG_CDC snprintf (ethaddr, sizeof ethaddr, "%02X%02X%02X%02X%02X%02X", dev->host_mac [0], dev->host_mac [1], @@ -2523,7 +2548,7 @@ static struct usb_gadget_driver eth_driver = { .function = (char *) driver_desc, .bind = eth_bind, - .unbind = eth_unbind, + .unbind = __exit_p(eth_unbind), .setup = eth_setup, .disconnect = eth_disconnect, diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index de59c58..cf3be29 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -3678,7 +3678,7 @@ static void lun_release(struct device *dev) kref_put(&fsg->ref, fsg_release); } -static void fsg_unbind(struct usb_gadget *gadget) +static void __exit fsg_unbind(struct usb_gadget *gadget) { struct fsg_dev *fsg = get_gadget_data(gadget); int i; @@ -4064,7 +4064,7 @@ static struct usb_gadget_driver fsg_driver = { #endif .function = (char *) longname, .bind = fsg_bind, - .unbind = fsg_unbind, + .unbind = __exit_p(fsg_unbind), .disconnect = fsg_disconnect, .setup = fsg_setup, .suspend = fsg_suspend, diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h index 8cbae21..c408140 100644 --- a/drivers/usb/gadget/gadget_chips.h +++ b/drivers/usb/gadget/gadget_chips.h @@ -3,9 +3,9 @@ * gadget drivers or other code that needs to deal with them, and which * autoconfigures instead of using early binding to the hardware. * - * This could eventually work like the ARM mach_is_*() stuff, driven by + * This SHOULD eventually work like the ARM mach_is_*() stuff, driven by * some config file that gets updated as new hardware is supported. - * (And avoiding the runtime comparisons in typical one-choice cases.) + * (And avoiding all runtime comparisons in typical one-choice configs!) * * NOTE: some of these controller drivers may not be available yet. */ @@ -93,6 +93,26 @@ #define gadget_is_imx(g) 0 #endif +/* Mentor high speed function controller */ +#ifdef CONFIG_USB_GADGET_MUSBHSFC +#define gadget_is_musbhsfc(g) !strcmp("musbhsfc_udc", (g)->name) +#else +#define gadget_is_musbhsfc(g) 0 +#endif + +/* Mentor high speed "dual role" controller, peripheral mode */ +#ifdef CONFIG_USB_GADGET_MUSBHDRC +#define gadget_is_musbhdrc(g) !strcmp("musbhdrc_udc", (g)->name) +#else +#define gadget_is_musbhdrc(g) 0 +#endif + +#ifdef CONFIG_USB_GADGET_MPC8272 +#define gadget_is_mpc8272(g) !strcmp("mpc8272_udc", (g)->name) +#else +#define gadget_is_mpc8272(g) 0 +#endif + // CONFIG_USB_GADGET_SX2 // CONFIG_USB_GADGET_AU1X00 // ... @@ -143,5 +163,11 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget) return 0x13; else if (gadget_is_imx(gadget)) return 0x14; + else if (gadget_is_musbhsfc(gadget)) + return 0x15; + else if (gadget_is_musbhdrc(gadget)) + return 0x16; + else if (gadget_is_mpc8272(gadget)) + return 0x17; return -ENOENT; } diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index b0f3cd6..66b81bb 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -275,11 +275,10 @@ goku_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags) if (!_ep) return NULL; - req = kmalloc(sizeof *req, gfp_flags); + req = kzalloc(sizeof *req, gfp_flags); if (!req) return NULL; - memset(req, 0, sizeof *req); req->req.dma = DMA_ADDR_INVALID; INIT_LIST_HEAD(&req->queue); return &req->req; diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index 0aab7d2..b44cfda 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -170,10 +170,9 @@ static struct dev_data *dev_new (void) { struct dev_data *dev; - dev = kmalloc (sizeof *dev, GFP_KERNEL); + dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (!dev) return NULL; - memset (dev, 0, sizeof *dev); dev->state = STATE_DEV_DISABLED; atomic_set (&dev->count, 1); spin_lock_init (&dev->lock); @@ -1592,10 +1591,9 @@ static int activate_ep_files (struct dev_data *dev) gadget_for_each_ep (ep, dev->gadget) { struct ep_data *data; - data = kmalloc (sizeof *data, GFP_KERNEL); + data = kzalloc(sizeof(*data), GFP_KERNEL); if (!data) goto enomem; - memset (data, 0, sizeof data); data->state = STATE_EP_DISABLED; init_MUTEX (&data->lock); init_waitqueue_head (&data->wait); diff --git a/drivers/usb/gadget/lh7a40x_udc.c b/drivers/usb/gadget/lh7a40x_udc.c index 1a362c5e..0d3424e 100644 --- a/drivers/usb/gadget/lh7a40x_udc.c +++ b/drivers/usb/gadget/lh7a40x_udc.c @@ -1114,11 +1114,10 @@ static struct usb_request *lh7a40x_alloc_request(struct usb_ep *ep, DEBUG("%s, %p\n", __FUNCTION__, ep); - req = kmalloc(sizeof *req, gfp_flags); + req = kzalloc(sizeof(*req), gfp_flags); if (!req) return 0; - memset(req, 0, sizeof *req); INIT_LIST_HEAD(&req->queue); return &req->req; diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index 67b13ab..fb73dc1 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -386,11 +386,10 @@ net2280_alloc_request (struct usb_ep *_ep, gfp_t gfp_flags) return NULL; ep = container_of (_ep, struct net2280_ep, ep); - req = kmalloc (sizeof *req, gfp_flags); + req = kzalloc(sizeof(*req), gfp_flags); if (!req) return NULL; - memset (req, 0, sizeof *req); req->req.dma = DMA_ADDR_INVALID; INIT_LIST_HEAD (&req->queue); diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index a8972d7..fbea514 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -273,9 +273,8 @@ omap_alloc_request(struct usb_ep *ep, gfp_t gfp_flags) { struct omap_req *req; - req = kmalloc(sizeof *req, gfp_flags); + req = kzalloc(sizeof(*req), gfp_flags); if (req) { - memset (req, 0, sizeof *req); req->req.dma = DMA_ADDR_INVALID; INIT_LIST_HEAD (&req->queue); } @@ -2586,11 +2585,10 @@ omap_udc_setup(struct platform_device *odev, struct otg_transceiver *xceiv) /* UDC_PULLUP_EN gates the chip clock */ // OTG_SYSCON_1_REG |= DEV_IDLE_EN; - udc = kmalloc (sizeof *udc, SLAB_KERNEL); + udc = kzalloc(sizeof(*udc), SLAB_KERNEL); if (!udc) return -ENOMEM; - memset(udc, 0, sizeof *udc); spin_lock_init (&udc->lock); udc->gadget.ops = &omap_gadget_ops; diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c index bb028c5..680f7fc 100644 --- a/drivers/usb/gadget/pxa2xx_udc.c +++ b/drivers/usb/gadget/pxa2xx_udc.c @@ -335,11 +335,10 @@ pxa2xx_ep_alloc_request (struct usb_ep *_ep, gfp_t gfp_flags) { struct pxa2xx_request *req; - req = kmalloc (sizeof *req, gfp_flags); + req = kzalloc(sizeof(*req), gfp_flags); if (!req) return NULL; - memset (req, 0, sizeof *req); INIT_LIST_HEAD (&req->queue); return &req->req; } diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index ba9acd5..b992546 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -369,7 +369,7 @@ static struct usb_gadget_driver gs_gadget_driver = { #endif /* CONFIG_USB_GADGET_DUALSPEED */ .function = GS_LONG_NAME, .bind = gs_bind, - .unbind = gs_unbind, + .unbind = __exit_p(gs_unbind), .setup = gs_setup, .disconnect = gs_disconnect, .driver = { @@ -1413,7 +1413,7 @@ requeue: * Called on module load. Allocates and initializes the device * structure and a control request. */ -static int gs_bind(struct usb_gadget *gadget) +static int __init gs_bind(struct usb_gadget *gadget) { int ret; struct usb_ep *ep; @@ -1538,7 +1538,7 @@ autoconf_fail: * Called on module unload. Frees the control request and device * structure. */ -static void gs_unbind(struct usb_gadget *gadget) +static void __exit gs_unbind(struct usb_gadget *gadget) { struct gs_dev *dev = get_gadget_data(gadget); @@ -2178,10 +2178,9 @@ static int gs_alloc_ports(struct gs_dev *dev, gfp_t kmalloc_flags) return -EIO; for (i=0; i<GS_NUM_PORTS; i++) { - if ((port=(struct gs_port *)kmalloc(sizeof(struct gs_port), kmalloc_flags)) == NULL) + if ((port=kzalloc(sizeof(struct gs_port), kmalloc_flags)) == NULL) return -ENOMEM; - memset(port, 0, sizeof(struct gs_port)); port->port_dev = dev; port->port_num = i; port->port_line_coding.dwDTERate = cpu_to_le32(GS_DEFAULT_DTE_RATE); diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c index ae7a1c0..51424f6 100644 --- a/drivers/usb/gadget/zero.c +++ b/drivers/usb/gadget/zero.c @@ -1119,7 +1119,7 @@ zero_autoresume (unsigned long _dev) /*-------------------------------------------------------------------------*/ -static void +static void __exit zero_unbind (struct usb_gadget *gadget) { struct zero_dev *dev = get_gadget_data (gadget); @@ -1136,7 +1136,7 @@ zero_unbind (struct usb_gadget *gadget) set_gadget_data (gadget, NULL); } -static int +static int __init zero_bind (struct usb_gadget *gadget) { struct zero_dev *dev; @@ -1188,10 +1188,9 @@ autoconf_fail: /* ok, we made sense of the hardware ... */ - dev = kmalloc (sizeof *dev, SLAB_KERNEL); + dev = kzalloc(sizeof(*dev), SLAB_KERNEL); if (!dev) return -ENOMEM; - memset (dev, 0, sizeof *dev); spin_lock_init (&dev->lock); dev->gadget = gadget; set_gadget_data (gadget, dev); @@ -1224,12 +1223,6 @@ autoconf_fail: loopback_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - if (gadget->is_otg) { - otg_descriptor.bmAttributes |= USB_OTG_HNP, - source_sink_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP; - loopback_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP; - } - usb_gadget_set_selfpowered (gadget); init_timer (&dev->resume); @@ -1294,7 +1287,7 @@ static struct usb_gadget_driver zero_driver = { #endif .function = (char *) longname, .bind = zero_bind, - .unbind = zero_unbind, + .unbind = __exit_p(zero_unbind), .setup = zero_setup, .disconnect = zero_disconnect, diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index be3fd9b..e27b79a3 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -6,7 +6,7 @@ comment "USB Host Controller Drivers" config USB_EHCI_HCD tristate "EHCI HCD (USB 2.0) support" - depends on USB && PCI + depends on USB && USB_ARCH_HAS_EHCI ---help--- The Enhanced Host Controller Interface (EHCI) is standard for USB 2.0 "high speed" (480 Mbit/sec, 60 Mbyte/sec) host controller hardware. diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c new file mode 100644 index 0000000..63eadee --- /dev/null +++ b/drivers/usb/host/ehci-au1xxx.c @@ -0,0 +1,297 @@ +/* + * EHCI HCD (Host Controller Driver) for USB. + * + * (C) Copyright 2000-2004 David Brownell <dbrownell@users.sourceforge.net> + * + * Bus Glue for AMD Alchemy Au1xxx + * + * Based on "ohci-au1xxx.c" by Matt Porter <mporter@kernel.crashing.org> + * + * Modified for AMD Alchemy Au1200 EHC + * by K.Boge <karsten.boge@amd.com> + * + * This file is licenced under the GPL. + */ + +#include <linux/platform_device.h> +#include <asm/mach-au1x00/au1000.h> + +#ifndef CONFIG_SOC_AU1200 +#error "this Alchemy chip doesn't have EHCI" +#else /* Au1200 */ + +#define USB_HOST_CONFIG (USB_MSR_BASE + USB_MSR_MCFG) +#define USB_MCFG_PFEN (1<<31) +#define USB_MCFG_RDCOMB (1<<30) +#define USB_MCFG_SSDEN (1<<23) +#define USB_MCFG_PHYPLLEN (1<<19) +#define USB_MCFG_EHCCLKEN (1<<17) +#define USB_MCFG_UCAM (1<<7) +#define USB_MCFG_EBMEN (1<<3) +#define USB_MCFG_EMEMEN (1<<2) + +#define USBH_ENABLE_CE (USB_MCFG_PHYPLLEN | USB_MCFG_EHCCLKEN) + +#ifdef CONFIG_DMA_COHERENT +#define USBH_ENABLE_INIT (USBH_ENABLE_CE \ + | USB_MCFG_PFEN | USB_MCFG_RDCOMB \ + | USB_MCFG_SSDEN | USB_MCFG_UCAM \ + | USB_MCFG_EBMEN | USB_MCFG_EMEMEN) +#else +#define USBH_ENABLE_INIT (USBH_ENABLE_CE \ + | USB_MCFG_PFEN | USB_MCFG_RDCOMB \ + | USB_MCFG_SSDEN \ + | USB_MCFG_EBMEN | USB_MCFG_EMEMEN) +#endif +#define USBH_DISABLE (USB_MCFG_EBMEN | USB_MCFG_EMEMEN) + +#endif /* Au1200 */ + +extern int usb_disabled(void); + +/*-------------------------------------------------------------------------*/ + +static void au1xxx_start_ehc(struct platform_device *dev) +{ + pr_debug(__FILE__ ": starting Au1xxx EHCI USB Controller\n"); + + /* write HW defaults again in case Yamon cleared them */ + if (au_readl(USB_HOST_CONFIG) == 0) { + au_writel(0x00d02000, USB_HOST_CONFIG); + au_readl(USB_HOST_CONFIG); + udelay(1000); + } + /* enable host controller */ + au_writel(USBH_ENABLE_CE | au_readl(USB_HOST_CONFIG), USB_HOST_CONFIG); + au_readl(USB_HOST_CONFIG); + udelay(1000); + au_writel(USBH_ENABLE_INIT | au_readl(USB_HOST_CONFIG), + USB_HOST_CONFIG); + au_readl(USB_HOST_CONFIG); + udelay(1000); + + pr_debug(__FILE__ ": Clock to USB host has been enabled\n"); +} + +static void au1xxx_stop_ehc(struct platform_device *dev) +{ + pr_debug(__FILE__ ": stopping Au1xxx EHCI USB Controller\n"); + + /* Disable mem */ + au_writel(~USBH_DISABLE & au_readl(USB_HOST_CONFIG), USB_HOST_CONFIG); + udelay(1000); + /* Disable clock */ + au_writel(~USB_MCFG_EHCCLKEN & au_readl(USB_HOST_CONFIG), + USB_HOST_CONFIG); + au_readl(USB_HOST_CONFIG); +} + +/*-------------------------------------------------------------------------*/ + +/* configure so an HC device and id are always provided */ +/* always called with process context; sleeping is OK */ + +/** + * usb_ehci_au1xxx_probe - initialize Au1xxx-based HCDs + * Context: !in_interrupt() + * + * Allocates basic resources for this USB host controller, and + * then invokes the start() method for the HCD associated with it + * through the hotplug entry's driver_data. + * + */ +int usb_ehci_au1xxx_probe(const struct hc_driver *driver, + struct usb_hcd **hcd_out, struct platform_device *dev) +{ + int retval; + struct usb_hcd *hcd; + struct ehci_hcd *ehci; + +#if defined(CONFIG_SOC_AU1200) && defined(CONFIG_DMA_COHERENT) + + /* Au1200 AB USB does not support coherent memory */ + if (!(read_c0_prid() & 0xff)) { + pr_info("%s: this is chip revision AB!\n", dev->dev.name); + pr_info("%s: update your board or re-configure the kernel\n", + dev->dev.name); + return -ENODEV; + } +#endif + + au1xxx_start_ehc(dev); + + if (dev->resource[1].flags != IORESOURCE_IRQ) { + pr_debug("resource[1] is not IORESOURCE_IRQ"); + retval = -ENOMEM; + } + hcd = usb_create_hcd(driver, &dev->dev, "Au1xxx"); + if (!hcd) + return -ENOMEM; + hcd->rsrc_start = dev->resource[0].start; + hcd->rsrc_len = dev->resource[0].end - dev->resource[0].start + 1; + + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { + pr_debug("request_mem_region failed"); + retval = -EBUSY; + goto err1; + } + + hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); + if (!hcd->regs) { + pr_debug("ioremap failed"); + retval = -ENOMEM; + goto err2; + } + + ehci = hcd_to_ehci(hcd); + ehci->caps = hcd->regs; + ehci->regs = hcd->regs + HC_LENGTH(readl(&ehci->caps->hc_capbase)); + /* cache this readonly data; minimize chip reads */ + ehci->hcs_params = readl(&ehci->caps->hcs_params); + + /* ehci_hcd_init(hcd_to_ehci(hcd)); */ + + retval = + usb_add_hcd(hcd, dev->resource[1].start, SA_INTERRUPT | SA_SHIRQ); + if (retval == 0) + return retval; + + au1xxx_stop_ehc(dev); + iounmap(hcd->regs); +err2: + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); +err1: + usb_put_hcd(hcd); + return retval; +} + +/* may be called without controller electrically present */ +/* may be called with controller, bus, and devices active */ + +/** + * usb_ehci_hcd_au1xxx_remove - shutdown processing for Au1xxx-based HCDs + * @dev: USB Host Controller being removed + * Context: !in_interrupt() + * + * Reverses the effect of usb_ehci_hcd_au1xxx_probe(), first invoking + * the HCD's stop() method. It is always called from a thread + * context, normally "rmmod", "apmd", or something similar. + * + */ +void usb_ehci_au1xxx_remove(struct usb_hcd *hcd, struct platform_device *dev) +{ + usb_remove_hcd(hcd); + iounmap(hcd->regs); + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + usb_put_hcd(hcd); + au1xxx_stop_ehc(dev); +} + +/*-------------------------------------------------------------------------*/ + +static const struct hc_driver ehci_au1xxx_hc_driver = { + .description = hcd_name, + .product_desc = "Au1xxx EHCI", + .hcd_priv_size = sizeof(struct ehci_hcd), + + /* + * generic hardware linkage + */ + .irq = ehci_irq, + .flags = HCD_MEMORY | HCD_USB2, + + /* + * basic lifecycle operations + */ + .reset = ehci_init, + .start = ehci_run, + .stop = ehci_stop, + + /* + * managing i/o requests and associated device resources + */ + .urb_enqueue = ehci_urb_enqueue, + .urb_dequeue = ehci_urb_dequeue, + .endpoint_disable = ehci_endpoint_disable, + + /* + * scheduling support + */ + .get_frame_number = ehci_get_frame, + + /* + * root hub support + */ + .hub_status_data = ehci_hub_status_data, + .hub_control = ehci_hub_control, +#ifdef CONFIG_PM + .hub_suspend = ehci_hub_suspend, + .hub_resume = ehci_hub_resume, +#endif +}; + +/*-------------------------------------------------------------------------*/ + +static int ehci_hcd_au1xxx_drv_probe(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct usb_hcd *hcd = NULL; + int ret; + + pr_debug("In ehci_hcd_au1xxx_drv_probe\n"); + + if (usb_disabled()) + return -ENODEV; + + ret = usb_ehci_au1xxx_probe(&ehci_au1xxx_hc_driver, &hcd, pdev); + return ret; +} + +static int ehci_hcd_au1xxx_drv_remove(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct usb_hcd *hcd = dev_get_drvdata(dev); + + usb_ehci_au1xxx_remove(hcd, pdev); + return 0; +} + + /*TBD*/ +/*static int ehci_hcd_au1xxx_drv_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct usb_hcd *hcd = dev_get_drvdata(dev); + + return 0; +} +static int ehci_hcd_au1xxx_drv_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct usb_hcd *hcd = dev_get_drvdata(dev); + + return 0; +} +*/ +static struct device_driver ehci_hcd_au1xxx_driver = { + .name = "au1xxx-ehci", + .bus = &platform_bus_type, + .probe = ehci_hcd_au1xxx_drv_probe, + .remove = ehci_hcd_au1xxx_drv_remove, + /*.suspend = ehci_hcd_au1xxx_drv_suspend, */ + /*.resume = ehci_hcd_au1xxx_drv_resume, */ +}; + +static int __init ehci_hcd_au1xxx_init(void) +{ + pr_debug(DRIVER_INFO " (Au1xxx)\n"); + + return driver_register(&ehci_hcd_au1xxx_driver); +} + +static void __exit ehci_hcd_au1xxx_cleanup(void) +{ + driver_unregister(&ehci_hcd_au1xxx_driver); +} + +module_init(ehci_hcd_au1xxx_init); +module_exit(ehci_hcd_au1xxx_cleanup); diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c new file mode 100644 index 0000000..f985f121 --- /dev/null +++ b/drivers/usb/host/ehci-fsl.c @@ -0,0 +1,366 @@ +/* + * (C) Copyright David Brownell 2000-2002 + * Copyright (c) 2005 MontaVista Software + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Ported to 834x by Randy Vinson <rvinson@mvista.com> using code provided + * by Hunter Wu. + */ + +#include <linux/platform_device.h> +#include <linux/fsl_devices.h> + +#include "ehci-fsl.h" + +/* FIXME: Power Managment is un-ported so temporarily disable it */ +#undef CONFIG_PM + +/* PCI-based HCs are common, but plenty of non-PCI HCs are used too */ + +/* configure so an HC device and id are always provided */ +/* always called with process context; sleeping is OK */ + +/** + * usb_hcd_fsl_probe - initialize FSL-based HCDs + * @drvier: Driver to be used for this HCD + * @pdev: USB Host Controller being probed + * Context: !in_interrupt() + * + * Allocates basic resources for this USB host controller. + * + */ +int usb_hcd_fsl_probe(const struct hc_driver *driver, + struct platform_device *pdev) +{ + struct fsl_usb2_platform_data *pdata; + struct usb_hcd *hcd; + struct resource *res; + int irq; + int retval; + unsigned int temp; + + pr_debug("initializing FSL-SOC USB Controller\n"); + + /* Need platform data for setup */ + pdata = (struct fsl_usb2_platform_data *)pdev->dev.platform_data; + if (!pdata) { + dev_err(&pdev->dev, + "No platform data for %s.\n", pdev->dev.bus_id); + return -ENODEV; + } + + /* + * This is a host mode driver, verify that we're supposed to be + * in host mode. + */ + if (!((pdata->operating_mode == FSL_USB2_DR_HOST) || + (pdata->operating_mode == FSL_USB2_MPH_HOST))) { + dev_err(&pdev->dev, + "Non Host Mode configured for %s. Wrong driver linked.\n", + pdev->dev.bus_id); + return -ENODEV; + } + + res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!res) { + dev_err(&pdev->dev, + "Found HC with no IRQ. Check %s setup!\n", + pdev->dev.bus_id); + return -ENODEV; + } + irq = res->start; + + hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id); + if (!hcd) { + retval = -ENOMEM; + goto err1; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, + "Found HC with no register addr. Check %s setup!\n", + pdev->dev.bus_id); + retval = -ENODEV; + goto err2; + } + hcd->rsrc_start = res->start; + hcd->rsrc_len = res->end - res->start + 1; + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, + driver->description)) { + dev_dbg(&pdev->dev, "controller already in use\n"); + retval = -EBUSY; + goto err2; + } + hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); + + if (hcd->regs == NULL) { + dev_dbg(&pdev->dev, "error mapping memory\n"); + retval = -EFAULT; + goto err3; + } + + /* Enable USB controller */ + temp = in_be32(hcd->regs + 0x500); + out_be32(hcd->regs + 0x500, temp | 0x4); + + /* Set to Host mode */ + temp = in_le32(hcd->regs + 0x1a8); + out_le32(hcd->regs + 0x1a8, temp | 0x3); + + retval = usb_add_hcd(hcd, irq, SA_SHIRQ); + if (retval != 0) + goto err4; + return retval; + + err4: + iounmap(hcd->regs); + err3: + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + err2: + usb_put_hcd(hcd); + err1: + dev_err(&pdev->dev, "init %s fail, %d\n", pdev->dev.bus_id, retval); + return retval; +} + +/* may be called without controller electrically present */ +/* may be called with controller, bus, and devices active */ + +/** + * usb_hcd_fsl_remove - shutdown processing for FSL-based HCDs + * @dev: USB Host Controller being removed + * Context: !in_interrupt() + * + * Reverses the effect of usb_hcd_fsl_probe(). + * + */ +void usb_hcd_fsl_remove(struct usb_hcd *hcd, struct platform_device *pdev) +{ + usb_remove_hcd(hcd); + iounmap(hcd->regs); + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + usb_put_hcd(hcd); +} + +static void mpc83xx_setup_phy(struct ehci_hcd *ehci, + enum fsl_usb2_phy_modes phy_mode, + unsigned int port_offset) +{ + u32 portsc = 0; + switch (phy_mode) { + case FSL_USB2_PHY_ULPI: + portsc |= PORT_PTS_ULPI; + break; + case FSL_USB2_PHY_SERIAL: + portsc |= PORT_PTS_SERIAL; + break; + case FSL_USB2_PHY_UTMI_WIDE: + portsc |= PORT_PTS_PTW; + /* fall through */ + case FSL_USB2_PHY_UTMI: + portsc |= PORT_PTS_UTMI; + break; + case FSL_USB2_PHY_NONE: + break; + } + writel(portsc, &ehci->regs->port_status[port_offset]); +} + +static void mpc83xx_usb_setup(struct usb_hcd *hcd) +{ + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + struct fsl_usb2_platform_data *pdata; + void __iomem *non_ehci = hcd->regs; + + pdata = + (struct fsl_usb2_platform_data *)hcd->self.controller-> + platform_data; + /* Enable PHY interface in the control reg. */ + out_be32(non_ehci + FSL_SOC_USB_CTRL, 0x00000004); + out_be32(non_ehci + FSL_SOC_USB_SNOOP1, 0x0000001b); + + if (pdata->operating_mode == FSL_USB2_DR_HOST) + mpc83xx_setup_phy(ehci, pdata->phy_mode, 0); + + if (pdata->operating_mode == FSL_USB2_MPH_HOST) { + unsigned int chip, rev, svr; + + svr = mfspr(SPRN_SVR); + chip = svr >> 16; + rev = (svr >> 4) & 0xf; + + /* Deal with USB Erratum #14 on MPC834x Rev 1.0 & 1.1 chips */ + if ((rev == 1) && (chip >= 0x8050) && (chip <= 0x8055)) + ehci->has_fsl_port_bug = 1; + + if (pdata->port_enables & FSL_USB2_PORT0_ENABLED) + mpc83xx_setup_phy(ehci, pdata->phy_mode, 0); + if (pdata->port_enables & FSL_USB2_PORT1_ENABLED) + mpc83xx_setup_phy(ehci, pdata->phy_mode, 1); + } + + /* put controller in host mode. */ + writel(0x00000003, non_ehci + FSL_SOC_USB_USBMODE); + out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x0000000c); + out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000040); + out_be32(non_ehci + FSL_SOC_USB_SICTRL, 0x00000001); +} + +/* called after powerup, by probe or system-pm "wakeup" */ +static int ehci_fsl_reinit(struct ehci_hcd *ehci) +{ + mpc83xx_usb_setup(ehci_to_hcd(ehci)); + ehci_port_power(ehci, 0); + + return 0; +} + +/* called during probe() after chip reset completes */ +static int ehci_fsl_setup(struct usb_hcd *hcd) +{ + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + int retval; + + /* EHCI registers start at offset 0x100 */ + ehci->caps = hcd->regs + 0x100; + ehci->regs = hcd->regs + 0x100 + + HC_LENGTH(readl(&ehci->caps->hc_capbase)); + dbg_hcs_params(ehci, "reset"); + dbg_hcc_params(ehci, "reset"); + + /* cache this readonly data; minimize chip reads */ + ehci->hcs_params = readl(&ehci->caps->hcs_params); + + retval = ehci_halt(ehci); + if (retval) + return retval; + + /* data structure init */ + retval = ehci_init(hcd); + if (retval) + return retval; + + ehci->is_tdi_rh_tt = 1; + + ehci->sbrn = 0x20; + + ehci_reset(ehci); + + retval = ehci_fsl_reinit(ehci); + return retval; +} + +static const struct hc_driver ehci_fsl_hc_driver = { + .description = hcd_name, + .product_desc = "Freescale On-Chip EHCI Host Controller", + .hcd_priv_size = sizeof(struct ehci_hcd), + + /* + * generic hardware linkage + */ + .irq = ehci_irq, + .flags = HCD_USB2, + + /* + * basic lifecycle operations + */ + .reset = ehci_fsl_setup, + .start = ehci_run, +#ifdef CONFIG_PM + .suspend = ehci_bus_suspend, + .resume = ehci_bus_resume, +#endif + .stop = ehci_stop, + + /* + * managing i/o requests and associated device resources + */ + .urb_enqueue = ehci_urb_enqueue, + .urb_dequeue = ehci_urb_dequeue, + .endpoint_disable = ehci_endpoint_disable, + + /* + * scheduling support + */ + .get_frame_number = ehci_get_frame, + + /* + * root hub support + */ + .hub_status_data = ehci_hub_status_data, + .hub_control = ehci_hub_control, + .bus_suspend = ehci_bus_suspend, + .bus_resume = ehci_bus_resume, +}; + +static int ehci_fsl_drv_probe(struct platform_device *pdev) +{ + if (usb_disabled()) + return -ENODEV; + + return usb_hcd_fsl_probe(&ehci_fsl_hc_driver, pdev); +} + +static int ehci_fsl_drv_remove(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + + usb_hcd_fsl_remove(hcd, pdev); + + return 0; +} + +static struct platform_driver ehci_fsl_dr_driver = { + .probe = ehci_fsl_drv_probe, + .remove = ehci_fsl_drv_remove, + .driver = { + .name = "fsl-usb2-dr", + }, +}; + +static struct platform_driver ehci_fsl_mph_driver = { + .probe = ehci_fsl_drv_probe, + .remove = ehci_fsl_drv_remove, + .driver = { + .name = "fsl-usb2-mph", + }, +}; + +static int __init ehci_fsl_init(void) +{ + int retval; + + pr_debug("%s: block sizes: qh %Zd qtd %Zd itd %Zd sitd %Zd\n", + hcd_name, + sizeof(struct ehci_qh), sizeof(struct ehci_qtd), + sizeof(struct ehci_itd), sizeof(struct ehci_sitd)); + + retval = platform_driver_register(&ehci_fsl_dr_driver); + if (retval) + return retval; + + return platform_driver_register(&ehci_fsl_mph_driver); +} + +static void __exit ehci_fsl_cleanup(void) +{ + platform_driver_unregister(&ehci_fsl_mph_driver); + platform_driver_unregister(&ehci_fsl_dr_driver); +} + +module_init(ehci_fsl_init); +module_exit(ehci_fsl_cleanup); diff --git a/drivers/usb/host/ehci-fsl.h b/drivers/usb/host/ehci-fsl.h new file mode 100644 index 0000000..caac0d1 --- /dev/null +++ b/drivers/usb/host/ehci-fsl.h @@ -0,0 +1,37 @@ +/* Copyright (c) 2005 freescale semiconductor + * Copyright (c) 2005 MontaVista Software + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#ifndef _EHCI_FSL_H +#define _EHCI_FSL_H + +/* offsets for the non-ehci registers in the FSL SOC USB controller */ +#define FSL_SOC_USB_ULPIVP 0x170 +#define FSL_SOC_USB_PORTSC1 0x184 +#define PORT_PTS_MSK (3<<30) +#define PORT_PTS_UTMI (0<<30) +#define PORT_PTS_ULPI (2<<30) +#define PORT_PTS_SERIAL (3<<30) +#define PORT_PTS_PTW (1<<28) +#define FSL_SOC_USB_PORTSC2 0x188 +#define FSL_SOC_USB_USBMODE 0x1a8 +#define FSL_SOC_USB_SNOOP1 0x400 /* NOTE: big-endian */ +#define FSL_SOC_USB_SNOOP2 0x404 /* NOTE: big-endian */ +#define FSL_SOC_USB_AGECNTTHRSH 0x408 /* NOTE: big-endian */ +#define FSL_SOC_USB_SICTRL 0x40c /* NOTE: big-endian */ +#define FSL_SOC_USB_PRICTRL 0x410 /* NOTE: big-endian */ +#define FSL_SOC_USB_CTRL 0x500 /* NOTE: big-endian */ +#endif /* _EHCI_FSL_H */ diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 9dd3d14..79f2d8b 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -889,8 +889,19 @@ MODULE_LICENSE ("GPL"); #ifdef CONFIG_PCI #include "ehci-pci.c" +#define EHCI_BUS_GLUED #endif -#if !defined(CONFIG_PCI) +#ifdef CONFIG_PPC_83xx +#include "ehci-fsl.c" +#define EHCI_BUS_GLUED +#endif + +#ifdef CONFIG_SOC_AU1X00 +#include "ehci-au1xxx.c" +#define EHCI_BUS_GLUED +#endif + +#ifndef EHCI_BUS_GLUED #error "missing bus glue for ehci-hcd" #endif diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 69b0b9b..d03e3ca 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -359,6 +359,8 @@ static int ehci_hub_control ( case USB_PORT_FEAT_SUSPEND: if (temp & PORT_RESET) goto error; + if (ehci->no_selective_suspend) + break; if (temp & PORT_SUSPEND) { if ((temp & PORT_PE) == 0) goto error; @@ -514,6 +516,8 @@ static int ehci_hub_control ( temp &= ~PORT_RWC_BITS; switch (wValue) { case USB_PORT_FEAT_SUSPEND: + if (ehci->no_selective_suspend) + break; if ((temp & PORT_PE) == 0 || (temp & PORT_RESET) != 0) goto error; diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c index 91c2ab4..766061e 100644 --- a/drivers/usb/host/ehci-mem.c +++ b/drivers/usb/host/ehci-mem.c @@ -75,7 +75,6 @@ static void qh_destroy (struct kref *kref) } if (qh->dummy) ehci_qtd_free (ehci, qh->dummy); - usb_put_dev (qh->dev); dma_pool_free (ehci->qh_pool, qh, qh->qh_dma); } @@ -221,13 +220,9 @@ static int ehci_mem_init (struct ehci_hcd *ehci, gfp_t flags) ehci->periodic [i] = EHCI_LIST_END; /* software shadow of hardware table */ - ehci->pshadow = kmalloc (ehci->periodic_size * sizeof (void *), flags); - if (ehci->pshadow == NULL) { - goto fail; - } - memset (ehci->pshadow, 0, ehci->periodic_size * sizeof (void *)); - - return 0; + ehci->pshadow = kcalloc(ehci->periodic_size, sizeof(void *), flags); + if (ehci->pshadow != NULL) + return 0; fail: ehci_dbg (ehci, "couldn't init memory\n"); diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 3a6687d..1e03f1a 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -106,11 +106,11 @@ static int ehci_pci_setup(struct usb_hcd *hcd) } break; case PCI_VENDOR_ID_NVIDIA: + switch (pdev->device) { /* NVidia reports that certain chips don't handle * QH, ITD, or SITD addresses above 2GB. (But TD, * data buffer, and periodic schedule are normal.) */ - switch (pdev->device) { case 0x003c: /* MCP04 */ case 0x005b: /* CK804 */ case 0x00d8: /* CK8 */ @@ -120,6 +120,14 @@ static int ehci_pci_setup(struct usb_hcd *hcd) ehci_warn(ehci, "can't enable NVidia " "workaround for >2GB RAM\n"); break; + /* Some NForce2 chips have problems with selective suspend; + * fixed in newer silicon. + */ + case 0x0068: + pci_read_config_dword(pdev, PCI_REVISION_ID, &temp); + if ((temp & 0xff) < 0xa4) + ehci->no_selective_suspend = 1; + break; } break; } @@ -163,6 +171,21 @@ static int ehci_pci_setup(struct usb_hcd *hcd) device_init_wakeup(&pdev->dev, 1); } +#ifdef CONFIG_USB_SUSPEND + /* REVISIT: the controller works fine for wakeup iff the root hub + * itself is "globally" suspended, but usbcore currently doesn't + * understand such things. + * + * System suspend currently expects to be able to suspend the entire + * device tree, device-at-a-time. If we failed selective suspend + * reports, system suspend would fail; so the root hub code must claim + * success. That's lying to usbcore, and it matters for for runtime + * PM scenarios with selective suspend and remote wakeup... + */ + if (ehci->no_selective_suspend && device_can_wakeup(&pdev->dev)) + ehci_warn(ehci, "selective suspend/wakeup unavailable\n"); +#endif + retval = ehci_pci_reinit(ehci, pdev); done: return retval; diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 9b13bf2..e469221 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -702,7 +702,7 @@ qh_make ( } /* support for tt scheduling, and access to toggles */ - qh->dev = usb_get_dev (urb->dev); + qh->dev = urb->dev; /* using TT? */ switch (urb->dev->speed) { @@ -721,7 +721,14 @@ qh_make ( info1 |= maxp << 16; info2 |= (EHCI_TUNE_MULT_TT << 30); - info2 |= urb->dev->ttport << 23; + + /* Some Freescale processors have an erratum in which the + * port number in the queue head was 0..N-1 instead of 1..N. + */ + if (ehci_has_fsl_portno_bug(ehci)) + info2 |= (urb->dev->ttport-1) << 23; + else + info2 |= urb->dev->ttport << 23; /* set the address of the TT; for TDI's integrated * root hub tt, leave it zeroed. @@ -1015,12 +1022,14 @@ static void start_unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh) /* stop async schedule right now? */ if (unlikely (qh == ehci->async)) { /* can't get here without STS_ASS set */ - if (ehci_to_hcd(ehci)->state != HC_STATE_HALT) { + if (ehci_to_hcd(ehci)->state != HC_STATE_HALT + && !ehci->reclaim) { + /* ... and CMD_IAAD clear */ writel (cmd & ~CMD_ASE, &ehci->regs->command); wmb (); // handshake later, if we need to + timer_action_done (ehci, TIMER_ASYNC_OFF); } - timer_action_done (ehci, TIMER_ASYNC_OFF); return; } diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index ebcca97..5871944 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -707,6 +707,7 @@ iso_stream_init ( } else { u32 addr; int think_time; + int hs_transfers; addr = dev->ttport << 24; if (!ehci_is_TDI(ehci) @@ -719,6 +720,7 @@ iso_stream_init ( think_time = dev->tt ? dev->tt->think_time : 0; stream->tt_usecs = NS_TO_US (think_time + usb_calc_bus_time ( dev->speed, is_input, 1, maxp)); + hs_transfers = max (1u, (maxp + 187) / 188); if (is_input) { u32 tmp; @@ -727,12 +729,11 @@ iso_stream_init ( stream->usecs = HS_USECS_ISO (1); stream->raw_mask = 1; - /* pessimistic c-mask */ - tmp = usb_calc_bus_time (USB_SPEED_FULL, 1, 0, maxp) - / (125 * 1000); - stream->raw_mask |= 3 << (tmp + 9); + /* c-mask as specified in USB 2.0 11.18.4 3.c */ + tmp = (1 << (hs_transfers + 2)) - 1; + stream->raw_mask |= tmp << (8 + 2); } else - stream->raw_mask = smask_out [maxp / 188]; + stream->raw_mask = smask_out [hs_transfers - 1]; bandwidth = stream->usecs + stream->c_usecs; bandwidth /= 1 << (interval + 2); @@ -863,9 +864,8 @@ iso_sched_alloc (unsigned packets, gfp_t mem_flags) int size = sizeof *iso_sched; size += packets * sizeof (struct ehci_iso_packet); - iso_sched = kmalloc (size, mem_flags); + iso_sched = kzalloc(size, mem_flags); if (likely (iso_sched != NULL)) { - memset(iso_sched, 0, size); INIT_LIST_HEAD (&iso_sched->td_list); } return iso_sched; @@ -1398,7 +1398,7 @@ itd_complete ( */ /* give urb back to the driver ... can be out-of-order */ - dev = usb_get_dev (urb->dev); + dev = urb->dev; ehci_urb_done (ehci, urb, regs); urb = NULL; @@ -1417,7 +1417,6 @@ itd_complete ( (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out"); } iso_stream_put (ehci, stream); - usb_put_dev (dev); return 1; } @@ -1764,7 +1763,7 @@ sitd_complete ( */ /* give urb back to the driver */ - dev = usb_get_dev (urb->dev); + dev = urb->dev; ehci_urb_done (ehci, urb, regs); urb = NULL; @@ -1783,7 +1782,6 @@ sitd_complete ( (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out"); } iso_stream_put (ehci, stream); - usb_put_dev (dev); return 1; } diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 18e257c..679c1cd 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -88,7 +88,12 @@ struct ehci_hcd { /* one per controller */ unsigned long next_statechange; u32 command; + /* SILICON QUIRKS */ unsigned is_tdi_rh_tt:1; /* TDI roothub with TT */ + unsigned no_selective_suspend:1; + unsigned has_fsl_port_bug:1; /* FreeScale */ + + u8 sbrn; /* packed release number */ /* irq statistics */ #ifdef EHCI_STATS @@ -97,7 +102,6 @@ struct ehci_hcd { /* one per controller */ #else # define COUNT(x) do {} while (0) #endif - u8 sbrn; /* packed release number */ }; /* convert between an HCD pointer and the corresponding EHCI_HCD */ @@ -638,6 +642,18 @@ ehci_port_speed(struct ehci_hcd *ehci, unsigned int portsc) /*-------------------------------------------------------------------------*/ +#ifdef CONFIG_PPC_83xx +/* Some Freescale processors have an erratum in which the TT + * port number in the queue head was 0..N-1 instead of 1..N. + */ +#define ehci_has_fsl_portno_bug(e) ((e)->has_fsl_port_bug) +#else +#define ehci_has_fsl_portno_bug(e) (0) +#endif + + +/*-------------------------------------------------------------------------*/ + #ifndef DEBUG #define STUB_DEBUG_FILES #endif /* DEBUG */ diff --git a/drivers/usb/host/hc_crisv10.c b/drivers/usb/host/hc_crisv10.c index 641268d..2fe7fd1 100644 --- a/drivers/usb/host/hc_crisv10.c +++ b/drivers/usb/host/hc_crisv10.c @@ -2137,10 +2137,9 @@ static int etrax_usb_submit_bulk_urb(struct urb *urb) urb->status = -EINPROGRESS; /* Setup the hcpriv data. */ - urb_priv = kmalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG); + urb_priv = kzalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG); assert(urb_priv != NULL); /* This sets rx_offset to 0. */ - memset(urb_priv, 0, sizeof(etrax_urb_priv_t)); urb_priv->urb_state = NOT_STARTED; urb->hcpriv = urb_priv; @@ -2475,10 +2474,9 @@ static int etrax_usb_submit_ctrl_urb(struct urb *urb) urb->status = -EINPROGRESS; /* Setup the hcpriv data. */ - urb_priv = kmalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG); + urb_priv = kzalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG); assert(urb_priv != NULL); /* This sets rx_offset to 0. */ - memset(urb_priv, 0, sizeof(etrax_urb_priv_t)); urb_priv->urb_state = NOT_STARTED; urb->hcpriv = urb_priv; @@ -2767,9 +2765,8 @@ static void etrax_usb_add_to_intr_sb_list(struct urb *urb, int epid) maxlen = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)); interval = urb->interval; - urb_priv = kmalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG); + urb_priv = kzalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG); assert(urb_priv != NULL); - memset(urb_priv, 0, sizeof(etrax_urb_priv_t)); urb->hcpriv = urb_priv; first_ep = &TxIntrEPList[0]; @@ -2997,9 +2994,8 @@ static void etrax_usb_add_to_isoc_sb_list(struct urb *urb, int epid) prev_sb_desc = next_sb_desc = temp_sb_desc = NULL; - urb_priv = kmalloc(sizeof(etrax_urb_priv_t), GFP_ATOMIC); + urb_priv = kzalloc(sizeof(etrax_urb_priv_t), GFP_ATOMIC); assert(urb_priv != NULL); - memset(urb_priv, 0, sizeof(etrax_urb_priv_t)); urb->hcpriv = urb_priv; urb_priv->epid = epid; diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 972ce04..e99210b 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -724,7 +724,7 @@ static int isp116x_urb_enqueue(struct usb_hcd *hcd, ep = hep->hcpriv; else { INIT_LIST_HEAD(&ep->schedule); - ep->udev = usb_get_dev(udev); + ep->udev = udev; ep->epnum = epnum; ep->maxpacket = usb_maxpacket(udev, urb->pipe, is_out); usb_settoggle(udev, epnum, is_out, 0); @@ -891,7 +891,6 @@ static void isp116x_endpoint_disable(struct usb_hcd *hcd, if (!list_empty(&hep->urb_list)) WARN("ep %p not empty?\n", ep); - usb_put_dev(ep->udev); kfree(ep); hep->hcpriv = NULL; } @@ -1553,7 +1552,7 @@ static struct hc_driver isp116x_hc_driver = { /*----------------------------------------------------------------*/ -static int __init_or_module isp116x_remove(struct platform_device *pdev) +static int isp116x_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); struct isp116x *isp116x; diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c new file mode 100644 index 0000000..980030d6 --- /dev/null +++ b/drivers/usb/host/ohci-at91.c @@ -0,0 +1,306 @@ +/* + * OHCI HCD (Host Controller Driver) for USB. + * + * Copyright (C) 2004 SAN People (Pty) Ltd. + * Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org> + * + * AT91RM9200 Bus Glue + * + * Based on fragments of 2.4 driver by Rick Bronson. + * Based on ohci-omap.c + * + * This file is licenced under the GPL. + */ + +#include <linux/clk.h> +#include <linux/platform_device.h> + +#include <asm/mach-types.h> +#include <asm/hardware.h> +#include <asm/arch/board.h> + +#ifndef CONFIG_ARCH_AT91RM9200 +#error "This file is AT91RM9200 bus glue. CONFIG_ARCH_AT91RM9200 must be defined." +#endif + +/* interface and function clocks */ +static struct clk *iclk, *fclk; + +extern int usb_disabled(void); + +/*-------------------------------------------------------------------------*/ + +static void at91_start_hc(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct ohci_regs __iomem *regs = hcd->regs; + + dev_dbg(&pdev->dev, "starting AT91RM9200 OHCI USB Controller\n"); + + /* + * Start the USB clocks. + */ + clk_enable(iclk); + clk_enable(fclk); + + /* + * The USB host controller must remain in reset. + */ + writel(0, ®s->control); +} + +static void at91_stop_hc(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct ohci_regs __iomem *regs = hcd->regs; + + dev_dbg(&pdev->dev, "stopping AT91RM9200 OHCI USB Controller\n"); + + /* + * Put the USB host controller into reset. + */ + writel(0, ®s->control); + + /* + * Stop the USB clocks. + */ + clk_disable(fclk); + clk_disable(iclk); +} + + +/*-------------------------------------------------------------------------*/ + +static int usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); + +/* configure so an HC device and id are always provided */ +/* always called with process context; sleeping is OK */ + + +/** + * usb_hcd_at91_probe - initialize AT91RM9200-based HCDs + * Context: !in_interrupt() + * + * Allocates basic resources for this USB host controller, and + * then invokes the start() method for the HCD associated with it + * through the hotplug entry's driver_data. + * + * Store this function in the HCD's struct pci_driver as probe(). + */ +int usb_hcd_at91_probe (const struct hc_driver *driver, struct platform_device *pdev) +{ + int retval; + struct usb_hcd *hcd = NULL; + + if (pdev->num_resources != 2) { + pr_debug("hcd probe: invalid num_resources"); + return -ENODEV; + } + + if ((pdev->resource[0].flags != IORESOURCE_MEM) || (pdev->resource[1].flags != IORESOURCE_IRQ)) { + pr_debug("hcd probe: invalid resource type\n"); + return -ENODEV; + } + + hcd = usb_create_hcd(driver, &pdev->dev, "at91rm9200"); + if (!hcd) + return -ENOMEM; + hcd->rsrc_start = pdev->resource[0].start; + hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1; + + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { + pr_debug("request_mem_region failed\n"); + retval = -EBUSY; + goto err1; + } + + hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); + if (!hcd->regs) { + pr_debug("ioremap failed\n"); + retval = -EIO; + goto err2; + } + + iclk = clk_get(&pdev->dev, "ohci_clk"); + fclk = clk_get(&pdev->dev, "uhpck"); + + at91_start_hc(pdev); + ohci_hcd_init(hcd_to_ohci(hcd)); + + retval = usb_add_hcd(hcd, pdev->resource[1].start, SA_INTERRUPT); + if (retval == 0) + return retval; + + /* Error handling */ + at91_stop_hc(pdev); + + clk_put(fclk); + clk_put(iclk); + + iounmap(hcd->regs); + + err2: + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + + err1: + usb_put_hcd(hcd); + return retval; +} + + +/* may be called without controller electrically present */ +/* may be called with controller, bus, and devices active */ + +/** + * usb_hcd_at91_remove - shutdown processing for AT91RM9200-based HCDs + * @dev: USB Host Controller being removed + * Context: !in_interrupt() + * + * Reverses the effect of usb_hcd_at91_probe(), first invoking + * the HCD's stop() method. It is always called from a thread + * context, normally "rmmod", "apmd", or something similar. + * + */ +static int usb_hcd_at91_remove (struct usb_hcd *hcd, struct platform_device *pdev) +{ + usb_remove_hcd(hcd); + at91_stop_hc(pdev); + iounmap(hcd->regs); + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + + clk_put(fclk); + clk_put(iclk); + fclk = iclk = NULL; + + dev_set_drvdata(&pdev->dev, NULL); + return 0; +} + +/*-------------------------------------------------------------------------*/ + +static int __devinit +ohci_at91_start (struct usb_hcd *hcd) +{ +// struct at91_ohci_data *board = hcd->self.controller->platform_data; + struct ohci_hcd *ohci = hcd_to_ohci (hcd); + int ret; + + if ((ret = ohci_init(ohci)) < 0) + return ret; + + if ((ret = ohci_run(ohci)) < 0) { + err("can't start %s", hcd->self.bus_name); + ohci_stop(hcd); + return ret; + } +// hcd->self.root_hub->maxchild = board->ports; + return 0; +} + +/*-------------------------------------------------------------------------*/ + +static const struct hc_driver ohci_at91_hc_driver = { + .description = hcd_name, + .product_desc = "AT91RM9200 OHCI", + .hcd_priv_size = sizeof(struct ohci_hcd), + + /* + * generic hardware linkage + */ + .irq = ohci_irq, + .flags = HCD_USB11 | HCD_MEMORY, + + /* + * basic lifecycle operations + */ + .start = ohci_at91_start, + .stop = ohci_stop, + + /* + * managing i/o requests and associated device resources + */ + .urb_enqueue = ohci_urb_enqueue, + .urb_dequeue = ohci_urb_dequeue, + .endpoint_disable = ohci_endpoint_disable, + + /* + * scheduling support + */ + .get_frame_number = ohci_get_frame, + + /* + * root hub support + */ + .hub_status_data = ohci_hub_status_data, + .hub_control = ohci_hub_control, + +#ifdef CONFIG_PM + .hub_suspend = ohci_hub_suspend, + .hub_resume = ohci_hub_resume, +#endif + .start_port_reset = ohci_start_port_reset, +}; + +/*-------------------------------------------------------------------------*/ + +static int ohci_hcd_at91_drv_probe(struct platform_device *dev) +{ + return usb_hcd_at91_probe(&ohci_at91_hc_driver, dev); +} + +static int ohci_hcd_at91_drv_remove(struct platform_device *dev) +{ + return usb_hcd_at91_remove(platform_get_drvdata(dev), dev); +} + +#ifdef CONFIG_PM +static int ohci_hcd_at91_drv_suspend(struct platform_device *dev, u32 state, u32 level) +{ + printk("%s(%s:%d): not implemented yet\n", + __func__, __FILE__, __LINE__); + + clk_disable(fclk); + + return 0; +} + +static int ohci_hcd_at91_drv_resume(struct platform_device *dev, u32 state) +{ + printk("%s(%s:%d): not implemented yet\n", + __func__, __FILE__, __LINE__); + + clk_enable(fclk); + + return 0; +} +#else +#define ohci_hcd_at91_drv_suspend NULL +#define ohci_hcd_at91_drv_resume NULL +#endif + +static struct platform_driver ohci_hcd_at91_driver = { + .probe = ohci_hcd_at91_drv_probe, + .remove = ohci_hcd_at91_drv_remove, + .suspend = ohci_hcd_at91_drv_suspend, + .resume = ohci_hcd_at91_drv_resume, + .driver = { + .name = "at91rm9200-ohci", + .owner = THIS_MODULE, + }, +}; + +static int __init ohci_hcd_at91_init (void) +{ + if (usb_disabled()) + return -ENODEV; + + return platform_driver_register(&ohci_hcd_at91_driver); +} + +static void __exit ohci_hcd_at91_cleanup (void) +{ + platform_driver_unregister(&ohci_hcd_at91_driver); +} + +module_init (ohci_hcd_at91_init); +module_exit (ohci_hcd_at91_cleanup); diff --git a/drivers/usb/host/ohci-au1xxx.c b/drivers/usb/host/ohci-au1xxx.c index db280ca..a1c8b3b 100644 --- a/drivers/usb/host/ohci-au1xxx.c +++ b/drivers/usb/host/ohci-au1xxx.c @@ -23,6 +23,8 @@ #include <asm/mach-au1x00/au1000.h> +#ifndef CONFIG_SOC_AU1200 + #define USBH_ENABLE_BE (1<<0) #define USBH_ENABLE_C (1<<1) #define USBH_ENABLE_E (1<<2) @@ -37,21 +39,68 @@ #error not byte order defined #endif +#else /* Au1200 */ + +#define USB_HOST_CONFIG (USB_MSR_BASE + USB_MSR_MCFG) +#define USB_MCFG_PFEN (1<<31) +#define USB_MCFG_RDCOMB (1<<30) +#define USB_MCFG_SSDEN (1<<23) +#define USB_MCFG_OHCCLKEN (1<<16) +#define USB_MCFG_UCAM (1<<7) +#define USB_MCFG_OBMEN (1<<1) +#define USB_MCFG_OMEMEN (1<<0) + +#define USBH_ENABLE_CE USB_MCFG_OHCCLKEN +#ifdef CONFIG_DMA_COHERENT +#define USBH_ENABLE_INIT (USB_MCFG_OHCCLKEN \ + | USB_MCFG_PFEN | USB_MCFG_RDCOMB \ + | USB_MCFG_SSDEN | USB_MCFG_UCAM \ + | USB_MCFG_OBMEN | USB_MCFG_OMEMEN) +#else +#define USBH_ENABLE_INIT (USB_MCFG_OHCCLKEN \ + | USB_MCFG_PFEN | USB_MCFG_RDCOMB \ + | USB_MCFG_SSDEN \ + | USB_MCFG_OBMEN | USB_MCFG_OMEMEN) +#endif +#define USBH_DISABLE (USB_MCFG_OBMEN | USB_MCFG_OMEMEN) + +#endif /* Au1200 */ + extern int usb_disabled(void); /*-------------------------------------------------------------------------*/ -static void au1xxx_start_hc(struct platform_device *dev) +static void au1xxx_start_ohc(struct platform_device *dev) { printk(KERN_DEBUG __FILE__ ": starting Au1xxx OHCI USB Controller\n"); /* enable host controller */ + +#ifndef CONFIG_SOC_AU1200 + au_writel(USBH_ENABLE_CE, USB_HOST_CONFIG); udelay(1000); au_writel(USBH_ENABLE_INIT, USB_HOST_CONFIG); udelay(1000); +#else /* Au1200 */ + + /* write HW defaults again in case Yamon cleared them */ + if (au_readl(USB_HOST_CONFIG) == 0) { + au_writel(0x00d02000, USB_HOST_CONFIG); + au_readl(USB_HOST_CONFIG); + udelay(1000); + } + au_writel(USBH_ENABLE_CE | au_readl(USB_HOST_CONFIG), USB_HOST_CONFIG); + au_readl(USB_HOST_CONFIG); + udelay(1000); + au_writel(USBH_ENABLE_INIT | au_readl(USB_HOST_CONFIG), USB_HOST_CONFIG); + au_readl(USB_HOST_CONFIG); + udelay(1000); + +#endif /* Au1200 */ + /* wait for reset complete (read register twice; see au1500 errata) */ while (au_readl(USB_HOST_CONFIG), !(au_readl(USB_HOST_CONFIG) & USBH_ENABLE_RD)) @@ -61,13 +110,25 @@ static void au1xxx_start_hc(struct platform_device *dev) ": Clock to USB host has been enabled \n"); } -static void au1xxx_stop_hc(struct platform_device *dev) +static void au1xxx_stop_ohc(struct platform_device *dev) { printk(KERN_DEBUG __FILE__ ": stopping Au1xxx OHCI USB Controller\n"); +#ifndef CONFIG_SOC_AU1200 + /* Disable clock */ au_writel(au_readl(USB_HOST_CONFIG) & ~USBH_ENABLE_CE, USB_HOST_CONFIG); + +#else /* Au1200 */ + + /* Disable mem */ + au_writel(~USBH_DISABLE & au_readl(USB_HOST_CONFIG), USB_HOST_CONFIG); + udelay(1000); + /* Disable clock */ + au_writel(~USBH_ENABLE_CE & au_readl(USB_HOST_CONFIG), USB_HOST_CONFIG); + au_readl(USB_HOST_CONFIG); +#endif /* Au1200 */ } @@ -78,7 +139,7 @@ static void au1xxx_stop_hc(struct platform_device *dev) /** - * usb_hcd_au1xxx_probe - initialize Au1xxx-based HCDs + * usb_ohci_au1xxx_probe - initialize Au1xxx-based HCDs * Context: !in_interrupt() * * Allocates basic resources for this USB host controller, and @@ -86,14 +147,25 @@ static void au1xxx_stop_hc(struct platform_device *dev) * through the hotplug entry's driver_data. * */ -int usb_hcd_au1xxx_probe (const struct hc_driver *driver, +static int usb_ohci_au1xxx_probe(const struct hc_driver *driver, struct platform_device *dev) { int retval; struct usb_hcd *hcd; - if(dev->resource[1].flags != IORESOURCE_IRQ) { - pr_debug ("resource[1] is not IORESOURCE_IRQ"); +#if defined(CONFIG_SOC_AU1200) && defined(CONFIG_DMA_COHERENT) + /* Au1200 AB USB does not support coherent memory */ + if (!(read_c0_prid() & 0xff)) { + pr_info("%s: this is chip revision AB !!\n", + dev->dev.name); + pr_info("%s: update your board or re-configure the kernel\n", + dev->dev.name); + return -ENODEV; + } +#endif + + if (dev->resource[1].flags != IORESOURCE_IRQ) { + pr_debug("resource[1] is not IORESOURCE_IRQ\n"); return -ENOMEM; } @@ -104,26 +176,26 @@ int usb_hcd_au1xxx_probe (const struct hc_driver *driver, hcd->rsrc_len = dev->resource[0].end - dev->resource[0].start + 1; if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - pr_debug("request_mem_region failed"); + pr_debug("request_mem_region failed\n"); retval = -EBUSY; goto err1; } hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); if (!hcd->regs) { - pr_debug("ioremap failed"); + pr_debug("ioremap failed\n"); retval = -ENOMEM; goto err2; } - au1xxx_start_hc(dev); + au1xxx_start_ohc(dev); ohci_hcd_init(hcd_to_ohci(hcd)); - retval = usb_add_hcd(hcd, dev->resource[1].start, SA_INTERRUPT); + retval = usb_add_hcd(hcd, dev->resource[1].start, SA_INTERRUPT | SA_SHIRQ); if (retval == 0) return retval; - au1xxx_stop_hc(dev); + au1xxx_stop_ohc(dev); iounmap(hcd->regs); err2: release_mem_region(hcd->rsrc_start, hcd->rsrc_len); @@ -146,10 +218,10 @@ int usb_hcd_au1xxx_probe (const struct hc_driver *driver, * context, normally "rmmod", "apmd", or something similar. * */ -void usb_hcd_au1xxx_remove (struct usb_hcd *hcd, struct platform_device *dev) +static void usb_ohci_au1xxx_remove(struct usb_hcd *hcd, struct platform_device *dev) { usb_remove_hcd(hcd); - au1xxx_stop_hc(dev); + au1xxx_stop_ohc(dev); iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); @@ -235,7 +307,7 @@ static int ohci_hcd_au1xxx_drv_probe(struct platform_device *pdev) if (usb_disabled()) return -ENODEV; - ret = usb_hcd_au1xxx_probe(&ohci_au1xxx_hc_driver, pdev); + ret = usb_ohci_au1xxx_probe(&ohci_au1xxx_hc_driver, pdev); return ret; } @@ -243,7 +315,7 @@ static int ohci_hcd_au1xxx_drv_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - usb_hcd_au1xxx_remove(hcd, pdev); + usb_ohci_au1xxx_remove(hcd, pdev); return 0; } /*TBD*/ diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index a4b1240..544f758 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -443,11 +443,16 @@ ohci_reboot (struct notifier_block *block, unsigned long code, void *null) static int ohci_init (struct ohci_hcd *ohci) { int ret; + struct usb_hcd *hcd = ohci_to_hcd(ohci); disable (ohci); - ohci->regs = ohci_to_hcd(ohci)->regs; + ohci->regs = hcd->regs; ohci->next_statechange = jiffies; + /* REVISIT this BIOS handshake is now moved into PCI "quirks", and + * was never needed for most non-PCI systems ... remove the code? + */ + #ifndef IR_DISABLE /* SMM owns the HC? not for long! */ if (!no_handshake && ohci_readl (ohci, @@ -478,8 +483,10 @@ static int ohci_init (struct ohci_hcd *ohci) /* Disable HC interrupts */ ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable); - // flush the writes - (void) ohci_readl (ohci, &ohci->regs->control); + + /* flush the writes, and save key bits like RWC */ + if (ohci_readl (ohci, &ohci->regs->control) & OHCI_CTRL_RWC) + ohci->hc_control |= OHCI_CTRL_RWC; /* Read the number of ports unless overridden */ if (ohci->num_ports == 0) @@ -488,16 +495,19 @@ static int ohci_init (struct ohci_hcd *ohci) if (ohci->hcca) return 0; - ohci->hcca = dma_alloc_coherent (ohci_to_hcd(ohci)->self.controller, + ohci->hcca = dma_alloc_coherent (hcd->self.controller, sizeof *ohci->hcca, &ohci->hcca_dma, 0); if (!ohci->hcca) return -ENOMEM; if ((ret = ohci_mem_init (ohci)) < 0) - ohci_stop (ohci_to_hcd(ohci)); + ohci_stop (hcd); + else { + register_reboot_notifier (&ohci->reboot_notifier); + create_debug_files (ohci); + } return ret; - } /*-------------------------------------------------------------------------*/ @@ -510,6 +520,7 @@ static int ohci_run (struct ohci_hcd *ohci) { u32 mask, temp; int first = ohci->fminterval == 0; + struct usb_hcd *hcd = ohci_to_hcd(ohci); disable (ohci); @@ -525,18 +536,17 @@ static int ohci_run (struct ohci_hcd *ohci) /* also: power/overcurrent flags in roothub.a */ } - /* Reset USB nearly "by the book". RemoteWakeupConnected - * saved if boot firmware (BIOS/SMM/...) told us it's connected - * (for OHCI integrated on mainboard, it normally is) + /* Reset USB nearly "by the book". RemoteWakeupConnected was + * saved if boot firmware (BIOS/SMM/...) told us it's connected, + * or if bus glue did the same (e.g. for PCI add-in cards with + * PCI PM support). */ - ohci->hc_control = ohci_readl (ohci, &ohci->regs->control); ohci_dbg (ohci, "resetting from state '%s', control = 0x%x\n", hcfs2string (ohci->hc_control & OHCI_CTRL_HCFS), - ohci->hc_control); - - if (ohci->hc_control & OHCI_CTRL_RWC - && !(ohci->flags & OHCI_QUIRK_AMD756)) - ohci_to_hcd(ohci)->can_wakeup = 1; + ohci_readl (ohci, &ohci->regs->control)); + if ((ohci->hc_control & OHCI_CTRL_RWC) != 0 + && !device_may_wakeup(hcd->self.controller)) + device_init_wakeup(hcd->self.controller, 1); switch (ohci->hc_control & OHCI_CTRL_HCFS) { case OHCI_USB_OPER: @@ -632,7 +642,7 @@ retry: ohci->hc_control &= OHCI_CTRL_RWC; ohci->hc_control |= OHCI_CONTROL_INIT | OHCI_USB_OPER; ohci_writel (ohci, ohci->hc_control, &ohci->regs->control); - ohci_to_hcd(ohci)->state = HC_STATE_RUNNING; + hcd->state = HC_STATE_RUNNING; /* wake on ConnectStatusChange, matching external hubs */ ohci_writel (ohci, RH_HS_DRWE, &ohci->regs->roothub.status); @@ -667,15 +677,10 @@ retry: // POTPGT delay is bits 24-31, in 2 ms units. mdelay ((temp >> 23) & 0x1fe); - ohci_to_hcd(ohci)->state = HC_STATE_RUNNING; + hcd->state = HC_STATE_RUNNING; ohci_dump (ohci, 1); - if (ohci_to_hcd(ohci)->self.root_hub == NULL) { - register_reboot_notifier (&ohci->reboot_notifier); - create_debug_files (ohci); - } - return 0; } @@ -905,6 +910,10 @@ MODULE_LICENSE ("GPL"); #include "ohci-ppc-soc.c" #endif +#ifdef CONFIG_ARCH_AT91RM9200 +#include "ohci-at91.c" +#endif + #if !(defined(CONFIG_PCI) \ || defined(CONFIG_SA1111) \ || defined(CONFIG_ARCH_S3C2410) \ @@ -913,6 +922,7 @@ MODULE_LICENSE ("GPL"); || defined (CONFIG_PXA27x) \ || defined (CONFIG_SOC_AU1X00) \ || defined (CONFIG_USB_OHCI_HCD_PPC_SOC) \ + || defined (CONFIG_ARCH_AT91RM9200) \ ) #error "missing bus glue for ohci-hcd" #endif diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index 4b2226d..0bb972b58 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -107,7 +107,7 @@ static int ohci_bus_suspend (struct usb_hcd *hcd) &ohci->regs->intrstatus); /* maybe resume can wake root hub */ - if (hcd->remote_wakeup) + if (device_may_wakeup(&ohci_to_hcd(ohci)->self.root_hub->dev)) ohci->hc_control |= OHCI_CTRL_RWE; else ohci->hc_control &= ~OHCI_CTRL_RWE; @@ -246,9 +246,9 @@ static int ohci_bus_resume (struct usb_hcd *hcd) (void) ohci_readl (ohci, &ohci->regs->control); msleep (3); - temp = OHCI_CONTROL_INIT | OHCI_USB_OPER; - if (hcd->can_wakeup) - temp |= OHCI_CTRL_RWC; + temp = ohci->hc_control; + temp &= OHCI_CTRL_RWC; + temp |= OHCI_CONTROL_INIT | OHCI_USB_OPER; ohci->hc_control = temp; ohci_writel (ohci, temp, &ohci->regs->control); (void) ohci_readl (ohci, &ohci->regs->control); @@ -302,7 +302,7 @@ ohci_hub_status_data (struct usb_hcd *hcd, char *buf) { struct ohci_hcd *ohci = hcd_to_ohci (hcd); int i, changed = 0, length = 1; - int can_suspend = hcd->can_wakeup; + int can_suspend = device_may_wakeup(&hcd->self.root_hub->dev); unsigned long flags; spin_lock_irqsave (&ohci->lock, flags); @@ -354,7 +354,7 @@ ohci_hub_status_data (struct usb_hcd *hcd, char *buf) */ if (!(status & RH_PS_CCS)) continue; - if ((status & RH_PS_PSS) && hcd->remote_wakeup) + if ((status & RH_PS_PSS) && can_suspend) continue; can_suspend = 0; } diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index 1b09dde..1bfe96f 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -35,7 +35,10 @@ ohci_pci_start (struct usb_hcd *hcd) struct ohci_hcd *ohci = hcd_to_ohci (hcd); int ret; - if(hcd->self.controller && hcd->self.controller->bus == &pci_bus_type) { + /* REVISIT this whole block should move to reset(), which handles + * all the other one-time init. + */ + if (hcd->self.controller) { struct pci_dev *pdev = to_pci_dev(hcd->self.controller); /* AMD 756, for most chips (early revs), corrupts register @@ -45,7 +48,8 @@ ohci_pci_start (struct usb_hcd *hcd) && pdev->device == 0x740c) { ohci->flags = OHCI_QUIRK_AMD756; ohci_dbg (ohci, "AMD756 erratum 4 workaround\n"); - // also somewhat erratum 10 (suspend/resume issues) + /* also erratum 10 (suspend/resume issues) */ + device_init_wakeup(&hcd->self.root_hub->dev, 0); } /* FIXME for some of the early AMD 760 southbridges, OHCI @@ -88,6 +92,13 @@ ohci_pci_start (struct usb_hcd *hcd) ohci_dbg (ohci, "enabled Compaq ZFMicro chipset quirk\n"); } + + /* RWC may not be set for add-in PCI cards, since boot + * firmware probably ignored them. This transfers PCI + * PM wakeup capabilities (once the PCI layer is fixed). + */ + if (device_may_wakeup(&pdev->dev)) + ohci->hc_control |= OHCI_CTRL_RWC; } /* NOTE: there may have already been a first reset, to diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 517360b..a923430 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -853,7 +853,7 @@ static int sl811h_urb_enqueue( } else { INIT_LIST_HEAD(&ep->schedule); - ep->udev = usb_get_dev(udev); + ep->udev = udev; ep->epnum = epnum; ep->maxpacket = usb_maxpacket(udev, urb->pipe, is_out); ep->defctrl = SL11H_HCTLMASK_ARM | SL11H_HCTLMASK_ENABLE; @@ -1052,7 +1052,6 @@ sl811h_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep) if (!list_empty(&hep->urb_list)) WARN("ep %p not empty?\n", ep); - usb_put_dev(ep->udev); kfree(ep); hep->hcpriv = NULL; } diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c index 5832953..e123931 100644 --- a/drivers/usb/host/uhci-debug.c +++ b/drivers/usb/host/uhci-debug.c @@ -17,10 +17,13 @@ #include "uhci-hcd.h" -static struct dentry *uhci_debugfs_root = NULL; +#define uhci_debug_operations (* (struct file_operations *) NULL) +static struct dentry *uhci_debugfs_root; + +#ifdef DEBUG /* Handle REALLY large printks so we don't overflow buffers */ -static inline void lprintk(char *buf) +static void lprintk(char *buf) { char *p; @@ -90,13 +93,59 @@ static int uhci_show_td(struct uhci_td *td, char *buf, int len, int space) return out - buf; } -static int uhci_show_qh(struct uhci_qh *qh, char *buf, int len, int space) +static int uhci_show_urbp(struct urb_priv *urbp, char *buf, int len, int space) { char *out = buf; - struct urb_priv *urbp; - struct list_head *head, *tmp; struct uhci_td *td; - int i = 0, checked = 0, prevactive = 0; + int i, nactive, ninactive; + + if (len < 200) + return 0; + + out += sprintf(out, "urb_priv [%p] ", urbp); + out += sprintf(out, "urb [%p] ", urbp->urb); + out += sprintf(out, "qh [%p] ", urbp->qh); + out += sprintf(out, "Dev=%d ", usb_pipedevice(urbp->urb->pipe)); + out += sprintf(out, "EP=%x(%s) ", usb_pipeendpoint(urbp->urb->pipe), + (usb_pipein(urbp->urb->pipe) ? "IN" : "OUT")); + + switch (usb_pipetype(urbp->urb->pipe)) { + case PIPE_ISOCHRONOUS: out += sprintf(out, "ISO"); break; + case PIPE_INTERRUPT: out += sprintf(out, "INT"); break; + case PIPE_BULK: out += sprintf(out, "BLK"); break; + case PIPE_CONTROL: out += sprintf(out, "CTL"); break; + } + + out += sprintf(out, "%s", (urbp->fsbr ? " FSBR" : "")); + + if (urbp->urb->status != -EINPROGRESS) + out += sprintf(out, " Status=%d", urbp->urb->status); + out += sprintf(out, "\n"); + + i = nactive = ninactive = 0; + list_for_each_entry(td, &urbp->td_list, list) { + if (++i <= 10 || debug > 2) { + out += sprintf(out, "%*s%d: ", space + 2, "", i); + out += uhci_show_td(td, out, len - (out - buf), 0); + } else { + if (td_status(td) & TD_CTRL_ACTIVE) + ++nactive; + else + ++ninactive; + } + } + if (nactive + ninactive > 0) + out += sprintf(out, "%*s[skipped %d inactive and %d active " + "TDs]\n", + space, "", ninactive, nactive); + + return out - buf; +} + +static int uhci_show_qh(struct uhci_qh *qh, char *buf, int len, int space) +{ + char *out = buf; + int i, nurbs; __le32 element = qh_element(qh); /* Try to make sure there's enough memory */ @@ -118,86 +167,40 @@ static int uhci_show_qh(struct uhci_qh *qh, char *buf, int len, int space) if (!(element & ~(UHCI_PTR_QH | UHCI_PTR_DEPTH))) out += sprintf(out, "%*s Element is NULL (bug?)\n", space, ""); - if (!qh->urbp) { - out += sprintf(out, "%*s urbp == NULL\n", space, ""); - goto out; - } - - urbp = qh->urbp; - - head = &urbp->td_list; - tmp = head->next; - - td = list_entry(tmp, struct uhci_td, list); - - if (cpu_to_le32(td->dma_handle) != (element & ~UHCI_PTR_BITS)) - out += sprintf(out, "%*s Element != First TD\n", space, ""); - - while (tmp != head) { - struct uhci_td *td = list_entry(tmp, struct uhci_td, list); - - tmp = tmp->next; - - out += sprintf(out, "%*s%d: ", space + 2, "", i++); - out += uhci_show_td(td, out, len - (out - buf), 0); - - if (i > 10 && !checked && prevactive && tmp != head && - debug <= 2) { - struct list_head *ntmp = tmp; - struct uhci_td *ntd = td; - int active = 1, ni = i; - - checked = 1; - - while (ntmp != head && ntmp->next != head && active) { - ntd = list_entry(ntmp, struct uhci_td, list); - - ntmp = ntmp->next; - - active = td_status(ntd) & TD_CTRL_ACTIVE; - - ni++; - } - - if (active && ni > i) { - out += sprintf(out, "%*s[skipped %d active TDs]\n", space, "", ni - i); - tmp = ntmp; - td = ntd; - i = ni; - } + if (list_empty(&qh->queue)) { + out += sprintf(out, "%*s queue is empty\n", space, ""); + } else { + struct urb_priv *urbp = list_entry(qh->queue.next, + struct urb_priv, node); + struct uhci_td *td = list_entry(urbp->td_list.next, + struct uhci_td, list); + + if (cpu_to_le32(td->dma_handle) != (element & ~UHCI_PTR_BITS)) + out += sprintf(out, "%*s Element != First TD\n", + space, ""); + i = nurbs = 0; + list_for_each_entry(urbp, &qh->queue, node) { + if (++i <= 10) + out += uhci_show_urbp(urbp, out, + len - (out - buf), space + 2); + else + ++nurbs; } - - prevactive = td_status(td) & TD_CTRL_ACTIVE; + if (nurbs > 0) + out += sprintf(out, "%*s Skipped %d URBs\n", + space, "", nurbs); } - if (list_empty(&urbp->queue_list) || urbp->queued) - goto out; - - out += sprintf(out, "%*sQueued QHs:\n", -space, "--"); - - head = &urbp->queue_list; - tmp = head->next; - - while (tmp != head) { - struct urb_priv *nurbp = list_entry(tmp, struct urb_priv, - queue_list); - tmp = tmp->next; - - out += uhci_show_qh(nurbp->qh, out, len - (out - buf), space); + if (qh->udev) { + out += sprintf(out, "%*s Dummy TD\n", space, ""); + out += uhci_show_td(qh->dummy_td, out, len - (out - buf), 0); } -out: return out - buf; } -#define show_frame_num() \ - if (!shown) { \ - shown = 1; \ - out += sprintf(out, "- Frame %d\n", i); \ - } - -#ifdef CONFIG_PROC_FS static const char * const qh_names[] = { + "skel_unlink_qh", "skel_iso_qh", "skel_int128_qh", "skel_int64_qh", "skel_int32_qh", "skel_int16_qh", "skel_int8_qh", "skel_int4_qh", @@ -206,12 +209,6 @@ static const char * const qh_names[] = { "skel_bulk_qh", "skel_term_qh" }; -#define show_qh_name() \ - if (!shown) { \ - shown = 1; \ - out += sprintf(out, "- %s\n", qh_names[i]); \ - } - static int uhci_show_sc(int port, unsigned short status, char *buf, int len) { char *out = buf; @@ -321,139 +318,29 @@ static int uhci_show_status(struct uhci_hcd *uhci, char *buf, int len) return out - buf; } -static int uhci_show_urbp(struct uhci_hcd *uhci, struct urb_priv *urbp, char *buf, int len) -{ - struct list_head *tmp; - char *out = buf; - int count = 0; - - if (len < 200) - return 0; - - out += sprintf(out, "urb_priv [%p] ", urbp); - out += sprintf(out, "urb [%p] ", urbp->urb); - out += sprintf(out, "qh [%p] ", urbp->qh); - out += sprintf(out, "Dev=%d ", usb_pipedevice(urbp->urb->pipe)); - out += sprintf(out, "EP=%x(%s) ", usb_pipeendpoint(urbp->urb->pipe), (usb_pipein(urbp->urb->pipe) ? "IN" : "OUT")); - - switch (usb_pipetype(urbp->urb->pipe)) { - case PIPE_ISOCHRONOUS: out += sprintf(out, "ISO "); break; - case PIPE_INTERRUPT: out += sprintf(out, "INT "); break; - case PIPE_BULK: out += sprintf(out, "BLK "); break; - case PIPE_CONTROL: out += sprintf(out, "CTL "); break; - } - - out += sprintf(out, "%s", (urbp->fsbr ? "FSBR " : "")); - out += sprintf(out, "%s", (urbp->fsbr_timeout ? "FSBR_TO " : "")); - - if (urbp->urb->status != -EINPROGRESS) - out += sprintf(out, "Status=%d ", urbp->urb->status); - //out += sprintf(out, "FSBRtime=%lx ",urbp->fsbrtime); - - count = 0; - list_for_each(tmp, &urbp->td_list) - count++; - out += sprintf(out, "TDs=%d ",count); - - if (urbp->queued) - out += sprintf(out, "queued\n"); - else { - count = 0; - list_for_each(tmp, &urbp->queue_list) - count++; - out += sprintf(out, "queued URBs=%d\n", count); - } - - return out - buf; -} - -static int uhci_show_lists(struct uhci_hcd *uhci, char *buf, int len) -{ - char *out = buf; - struct list_head *head, *tmp; - int count; - - out += sprintf(out, "Main list URBs:"); - if (list_empty(&uhci->urb_list)) - out += sprintf(out, " Empty\n"); - else { - out += sprintf(out, "\n"); - count = 0; - head = &uhci->urb_list; - tmp = head->next; - while (tmp != head) { - struct urb_priv *urbp = list_entry(tmp, struct urb_priv, urb_list); - - out += sprintf(out, " %d: ", ++count); - out += uhci_show_urbp(uhci, urbp, out, len - (out - buf)); - tmp = tmp->next; - } - } - - out += sprintf(out, "Remove list URBs:"); - if (list_empty(&uhci->urb_remove_list)) - out += sprintf(out, " Empty\n"); - else { - out += sprintf(out, "\n"); - count = 0; - head = &uhci->urb_remove_list; - tmp = head->next; - while (tmp != head) { - struct urb_priv *urbp = list_entry(tmp, struct urb_priv, urb_list); - - out += sprintf(out, " %d: ", ++count); - out += uhci_show_urbp(uhci, urbp, out, len - (out - buf)); - tmp = tmp->next; - } - } - - out += sprintf(out, "Complete list URBs:"); - if (list_empty(&uhci->complete_list)) - out += sprintf(out, " Empty\n"); - else { - out += sprintf(out, "\n"); - count = 0; - head = &uhci->complete_list; - tmp = head->next; - while (tmp != head) { - struct urb_priv *urbp = list_entry(tmp, struct urb_priv, urb_list); - - out += sprintf(out, " %d: ", ++count); - out += uhci_show_urbp(uhci, urbp, out, len - (out - buf)); - tmp = tmp->next; - } - } - - return out - buf; -} - static int uhci_sprint_schedule(struct uhci_hcd *uhci, char *buf, int len) { - unsigned long flags; char *out = buf; int i, j; struct uhci_qh *qh; struct uhci_td *td; struct list_head *tmp, *head; - spin_lock_irqsave(&uhci->lock, flags); - out += uhci_show_root_hub_state(uhci, out, len - (out - buf)); out += sprintf(out, "HC status\n"); out += uhci_show_status(uhci, out, len - (out - buf)); + if (debug <= 1) + return out - buf; out += sprintf(out, "Frame List\n"); for (i = 0; i < UHCI_NUMFRAMES; ++i) { - int shown = 0; td = uhci->frame_cpu[i]; if (!td) continue; - if (td->dma_handle != (dma_addr_t)uhci->frame[i]) { - show_frame_num(); + out += sprintf(out, "- Frame %d\n", i); \ + if (td->dma_handle != (dma_addr_t)uhci->frame[i]) out += sprintf(out, " frame list does not match td->dma_handle!\n"); - } - show_frame_num(); head = &td->fl_list; tmp = head; @@ -467,14 +354,11 @@ static int uhci_sprint_schedule(struct uhci_hcd *uhci, char *buf, int len) out += sprintf(out, "Skeleton QHs\n"); for (i = 0; i < UHCI_NUM_SKELQH; ++i) { - int shown = 0; + int cnt = 0; qh = uhci->skelqh[i]; - - if (debug > 1) { - show_qh_name(); - out += uhci_show_qh(qh, out, len - (out - buf), 4); - } + out += sprintf(out, "- %s\n", qh_names[i]); \ + out += uhci_show_qh(qh, out, len - (out - buf), 4); /* Last QH is the Terminating QH, it's different */ if (i == UHCI_NUM_SKELQH - 1) { @@ -487,53 +371,37 @@ static int uhci_sprint_schedule(struct uhci_hcd *uhci, char *buf, int len) continue; } - j = (i < 7) ? 7 : i+1; /* Next skeleton */ - if (list_empty(&qh->list)) { - if (i < UHCI_NUM_SKELQH - 1) { - if (qh->link != - (cpu_to_le32(uhci->skelqh[j]->dma_handle) | UHCI_PTR_QH)) { - show_qh_name(); - out += sprintf(out, " skeleton QH not linked to next skeleton QH!\n"); - } - } - - continue; - } - - show_qh_name(); - - head = &qh->list; + j = (i < 9) ? 9 : i+1; /* Next skeleton */ + head = &qh->node; tmp = head->next; while (tmp != head) { - qh = list_entry(tmp, struct uhci_qh, list); - + qh = list_entry(tmp, struct uhci_qh, node); tmp = tmp->next; - - out += uhci_show_qh(qh, out, len - (out - buf), 4); + if (++cnt <= 10) + out += uhci_show_qh(qh, out, + len - (out - buf), 4); } + if ((cnt -= 10) > 0) + out += sprintf(out, " Skipped %d QHs\n", cnt); - if (i < UHCI_NUM_SKELQH - 1) { + if (i > 1 && i < UHCI_NUM_SKELQH - 1) { if (qh->link != (cpu_to_le32(uhci->skelqh[j]->dma_handle) | UHCI_PTR_QH)) out += sprintf(out, " last QH not linked to next skeleton!\n"); } } - if (debug > 2) - out += uhci_show_lists(uhci, out, len - (out - buf)); - - spin_unlock_irqrestore(&uhci->lock, flags); - return out - buf; } +#ifdef CONFIG_DEBUG_FS + #define MAX_OUTPUT (64 * 1024) struct uhci_debug { int size; char *data; - struct uhci_hcd *uhci; }; static int uhci_debug_open(struct inode *inode, struct file *file) @@ -541,6 +409,7 @@ static int uhci_debug_open(struct inode *inode, struct file *file) struct uhci_hcd *uhci = inode->u.generic_ip; struct uhci_debug *up; int ret = -ENOMEM; + unsigned long flags; lock_kernel(); up = kmalloc(sizeof(*up), GFP_KERNEL); @@ -553,7 +422,11 @@ static int uhci_debug_open(struct inode *inode, struct file *file) goto out; } - up->size = uhci_sprint_schedule(uhci, up->data, MAX_OUTPUT); + up->size = 0; + spin_lock_irqsave(&uhci->lock, flags); + if (uhci->is_initialized) + up->size = uhci_sprint_schedule(uhci, up->data, MAX_OUTPUT); + spin_unlock_irqrestore(&uhci->lock, flags); file->private_data = up; @@ -604,15 +477,32 @@ static int uhci_debug_release(struct inode *inode, struct file *file) return 0; } +#undef uhci_debug_operations static struct file_operations uhci_debug_operations = { + .owner = THIS_MODULE, .open = uhci_debug_open, .llseek = uhci_debug_lseek, .read = uhci_debug_read, .release = uhci_debug_release, }; -#else /* CONFIG_DEBUG_FS */ +#endif /* CONFIG_DEBUG_FS */ -#define uhci_debug_operations (* (struct file_operations *) NULL) +#else /* DEBUG */ + +static inline void lprintk(char *buf) +{} + +static inline int uhci_show_qh(struct uhci_qh *qh, char *buf, + int len, int space) +{ + return 0; +} + +static inline int uhci_sprint_schedule(struct uhci_hcd *uhci, + char *buf, int len) +{ + return 0; +} #endif diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index dfe121d..4edb833 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -54,7 +54,7 @@ /* * Version Information */ -#define DRIVER_VERSION "v2.3" +#define DRIVER_VERSION "v3.0" #define DRIVER_AUTHOR "Linus 'Frodo Rabbit' Torvalds, Johannes Erdfelt, \ Randy Dunlap, Georg Acher, Deti Fliegl, Thomas Sailer, Roman Weissgaerber, \ Alan Stern" @@ -68,12 +68,16 @@ Alan Stern" * debug = 3, show all TDs in URBs when dumping */ #ifdef DEBUG +#define DEBUG_CONFIGURED 1 static int debug = 1; -#else -static int debug = 0; -#endif module_param(debug, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Debug level"); + +#else +#define DEBUG_CONFIGURED 0 +#define debug 0 +#endif + static char *errbuf; #define ERRBUF_LEN (32 * 1024) @@ -338,6 +342,12 @@ static irqreturn_t uhci_irq(struct usb_hcd *hcd, struct pt_regs *regs) dev_err(uhci_dev(uhci), "host controller halted, " "very bad!\n"); + if (debug > 1 && errbuf) { + /* Print the schedule for debugging */ + uhci_sprint_schedule(uhci, + errbuf, ERRBUF_LEN); + lprintk(errbuf); + } hc_died(uhci); /* Force a callback in case there are @@ -376,6 +386,14 @@ static void release_uhci(struct uhci_hcd *uhci) { int i; + if (DEBUG_CONFIGURED) { + spin_lock_irq(&uhci->lock); + uhci->is_initialized = 0; + spin_unlock_irq(&uhci->lock); + + debugfs_remove(uhci->dentry); + } + for (i = 0; i < UHCI_NUM_SKELQH; i++) uhci_free_qh(uhci, uhci->skelqh[i]); @@ -390,8 +408,6 @@ static void release_uhci(struct uhci_hcd *uhci) dma_free_coherent(uhci_dev(uhci), UHCI_NUMFRAMES * sizeof(*uhci->frame), uhci->frame, uhci->frame_dma_handle); - - debugfs_remove(uhci->dentry); } static int uhci_reset(struct usb_hcd *hcd) @@ -474,33 +490,29 @@ static int uhci_start(struct usb_hcd *hcd) hcd->uses_new_polling = 1; - dentry = debugfs_create_file(hcd->self.bus_name, - S_IFREG|S_IRUGO|S_IWUSR, uhci_debugfs_root, uhci, - &uhci_debug_operations); - if (!dentry) { - dev_err(uhci_dev(uhci), - "couldn't create uhci debugfs entry\n"); - retval = -ENOMEM; - goto err_create_debug_entry; - } - uhci->dentry = dentry; - uhci->fsbr = 0; uhci->fsbrtimeout = 0; spin_lock_init(&uhci->lock); - INIT_LIST_HEAD(&uhci->qh_remove_list); INIT_LIST_HEAD(&uhci->td_remove_list); - - INIT_LIST_HEAD(&uhci->urb_remove_list); - - INIT_LIST_HEAD(&uhci->urb_list); - - INIT_LIST_HEAD(&uhci->complete_list); + INIT_LIST_HEAD(&uhci->idle_qh_list); init_waitqueue_head(&uhci->waitqh); + if (DEBUG_CONFIGURED) { + dentry = debugfs_create_file(hcd->self.bus_name, + S_IFREG|S_IRUGO|S_IWUSR, uhci_debugfs_root, + uhci, &uhci_debug_operations); + if (!dentry) { + dev_err(uhci_dev(uhci), "couldn't create uhci " + "debugfs entry\n"); + retval = -ENOMEM; + goto err_create_debug_entry; + } + uhci->dentry = dentry; + } + uhci->frame = dma_alloc_coherent(uhci_dev(uhci), UHCI_NUMFRAMES * sizeof(*uhci->frame), &uhci->frame_dma_handle, 0); @@ -540,7 +552,7 @@ static int uhci_start(struct usb_hcd *hcd) } for (i = 0; i < UHCI_NUM_SKELQH; i++) { - uhci->skelqh[i] = uhci_alloc_qh(uhci); + uhci->skelqh[i] = uhci_alloc_qh(uhci, NULL, NULL); if (!uhci->skelqh[i]) { dev_err(uhci_dev(uhci), "unable to allocate QH\n"); goto err_alloc_skelqh; @@ -557,13 +569,17 @@ static int uhci_start(struct usb_hcd *hcd) uhci->skel_int16_qh->link = uhci->skel_int8_qh->link = uhci->skel_int4_qh->link = - uhci->skel_int2_qh->link = - cpu_to_le32(uhci->skel_int1_qh->dma_handle) | UHCI_PTR_QH; - uhci->skel_int1_qh->link = cpu_to_le32(uhci->skel_ls_control_qh->dma_handle) | UHCI_PTR_QH; - - uhci->skel_ls_control_qh->link = cpu_to_le32(uhci->skel_fs_control_qh->dma_handle) | UHCI_PTR_QH; - uhci->skel_fs_control_qh->link = cpu_to_le32(uhci->skel_bulk_qh->dma_handle) | UHCI_PTR_QH; - uhci->skel_bulk_qh->link = cpu_to_le32(uhci->skel_term_qh->dma_handle) | UHCI_PTR_QH; + uhci->skel_int2_qh->link = UHCI_PTR_QH | + cpu_to_le32(uhci->skel_int1_qh->dma_handle); + + uhci->skel_int1_qh->link = UHCI_PTR_QH | + cpu_to_le32(uhci->skel_ls_control_qh->dma_handle); + uhci->skel_ls_control_qh->link = UHCI_PTR_QH | + cpu_to_le32(uhci->skel_fs_control_qh->dma_handle); + uhci->skel_fs_control_qh->link = UHCI_PTR_QH | + cpu_to_le32(uhci->skel_bulk_qh->dma_handle); + uhci->skel_bulk_qh->link = UHCI_PTR_QH | + cpu_to_le32(uhci->skel_term_qh->dma_handle); /* This dummy TD is to work around a bug in Intel PIIX controllers */ uhci_fill_td(uhci->term_td, 0, uhci_explen(0) | @@ -589,15 +605,15 @@ static int uhci_start(struct usb_hcd *hcd) /* * ffs (Find First bit Set) does exactly what we need: - * 1,3,5,... => ffs = 0 => use skel_int2_qh = skelqh[6], - * 2,6,10,... => ffs = 1 => use skel_int4_qh = skelqh[5], etc. - * ffs > 6 => not on any high-period queue, so use - * skel_int1_qh = skelqh[7]. + * 1,3,5,... => ffs = 0 => use skel_int2_qh = skelqh[8], + * 2,6,10,... => ffs = 1 => use skel_int4_qh = skelqh[7], etc. + * ffs >= 7 => not on any high-period queue, so use + * skel_int1_qh = skelqh[9]. * Add UHCI_NUMFRAMES to insure at least one bit is set. */ - irq = 6 - (int) __ffs(i + UHCI_NUMFRAMES); - if (irq < 0) - irq = 7; + irq = 8 - (int) __ffs(i + UHCI_NUMFRAMES); + if (irq <= 1) + irq = 9; /* Only place we don't use the frame list routines */ uhci->frame[i] = UHCI_PTR_QH | @@ -611,6 +627,7 @@ static int uhci_start(struct usb_hcd *hcd) mb(); configure_hc(uhci); + uhci->is_initialized = 1; start_rh(uhci); return 0; @@ -767,13 +784,30 @@ static int uhci_resume(struct usb_hcd *hcd) } #endif -/* Wait until all the URBs for a particular device/endpoint are gone */ +/* Wait until a particular device/endpoint's QH is idle, and free it */ static void uhci_hcd_endpoint_disable(struct usb_hcd *hcd, - struct usb_host_endpoint *ep) + struct usb_host_endpoint *hep) { struct uhci_hcd *uhci = hcd_to_uhci(hcd); + struct uhci_qh *qh; + + spin_lock_irq(&uhci->lock); + qh = (struct uhci_qh *) hep->hcpriv; + if (qh == NULL) + goto done; + + while (qh->state != QH_STATE_IDLE) { + ++uhci->num_waiting; + spin_unlock_irq(&uhci->lock); + wait_event_interruptible(uhci->waitqh, + qh->state == QH_STATE_IDLE); + spin_lock_irq(&uhci->lock); + --uhci->num_waiting; + } - wait_event_interruptible(uhci->waitqh, list_empty(&ep->urb_list)); + uhci_free_qh(uhci, qh); +done: + spin_unlock_irq(&uhci->lock); } static int uhci_hcd_get_frame_number(struct usb_hcd *hcd) @@ -857,16 +891,15 @@ static int __init uhci_hcd_init(void) if (usb_disabled()) return -ENODEV; - if (debug) { + if (DEBUG_CONFIGURED) { errbuf = kmalloc(ERRBUF_LEN, GFP_KERNEL); if (!errbuf) goto errbuf_failed; + uhci_debugfs_root = debugfs_create_dir("uhci", NULL); + if (!uhci_debugfs_root) + goto debug_failed; } - uhci_debugfs_root = debugfs_create_dir("uhci", NULL); - if (!uhci_debugfs_root) - goto debug_failed; - uhci_up_cachep = kmem_cache_create("uhci_urb_priv", sizeof(struct urb_priv), 0, 0, NULL, NULL); if (!uhci_up_cachep) diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h index 8b4b887..4a69c7e 100644 --- a/drivers/usb/host/uhci-hcd.h +++ b/drivers/usb/host/uhci-hcd.h @@ -28,8 +28,9 @@ #define USBSTS_USBINT 0x0001 /* Interrupt due to IOC */ #define USBSTS_ERROR 0x0002 /* Interrupt due to error */ #define USBSTS_RD 0x0004 /* Resume Detect */ -#define USBSTS_HSE 0x0008 /* Host System Error - basically PCI problems */ -#define USBSTS_HCPE 0x0010 /* Host Controller Process Error - the scripts were buggy */ +#define USBSTS_HSE 0x0008 /* Host System Error: PCI problems */ +#define USBSTS_HCPE 0x0010 /* Host Controller Process Error: + * the schedule is buggy */ #define USBSTS_HCH 0x0020 /* HC Halted */ /* Interrupt enable register */ @@ -47,7 +48,8 @@ /* USB port status and control registers */ #define USBPORTSC1 16 #define USBPORTSC2 18 -#define USBPORTSC_CCS 0x0001 /* Current Connect Status ("device present") */ +#define USBPORTSC_CCS 0x0001 /* Current Connect Status + * ("device present") */ #define USBPORTSC_CSC 0x0002 /* Connect Status Change */ #define USBPORTSC_PE 0x0004 /* Port Enable */ #define USBPORTSC_PEC 0x0008 /* Port Enable Change */ @@ -71,15 +73,16 @@ #define USBLEGSUP_RWC 0x8f00 /* the R/WC bits */ #define USBLEGSUP_RO 0x5040 /* R/O and reserved bits */ -#define UHCI_PTR_BITS cpu_to_le32(0x000F) -#define UHCI_PTR_TERM cpu_to_le32(0x0001) -#define UHCI_PTR_QH cpu_to_le32(0x0002) -#define UHCI_PTR_DEPTH cpu_to_le32(0x0004) -#define UHCI_PTR_BREADTH cpu_to_le32(0x0000) +#define UHCI_PTR_BITS __constant_cpu_to_le32(0x000F) +#define UHCI_PTR_TERM __constant_cpu_to_le32(0x0001) +#define UHCI_PTR_QH __constant_cpu_to_le32(0x0002) +#define UHCI_PTR_DEPTH __constant_cpu_to_le32(0x0004) +#define UHCI_PTR_BREADTH __constant_cpu_to_le32(0x0000) #define UHCI_NUMFRAMES 1024 /* in the frame list [array] */ #define UHCI_MAX_SOF_NUMBER 2047 /* in an SOF packet */ -#define CAN_SCHEDULE_FRAMES 1000 /* how far future frames can be scheduled */ +#define CAN_SCHEDULE_FRAMES 1000 /* how far in the future frames + * can be scheduled */ /* @@ -87,38 +90,59 @@ */ /* - * One role of a QH is to hold a queue of TDs for some endpoint. Each QH is - * used with one URB, and qh->element (updated by the HC) is either: - * - the next unprocessed TD for the URB, or - * - UHCI_PTR_TERM (when there's no more traffic for this endpoint), or - * - the QH for the next URB queued to the same endpoint. + * One role of a QH is to hold a queue of TDs for some endpoint. One QH goes + * with each endpoint, and qh->element (updated by the HC) is either: + * - the next unprocessed TD in the endpoint's queue, or + * - UHCI_PTR_TERM (when there's no more traffic for this endpoint). * * The other role of a QH is to serve as a "skeleton" framelist entry, so we * can easily splice a QH for some endpoint into the schedule at the right * place. Then qh->element is UHCI_PTR_TERM. * - * In the frame list, qh->link maintains a list of QHs seen by the HC: + * In the schedule, qh->link maintains a list of QHs seen by the HC: * skel1 --> ep1-qh --> ep2-qh --> ... --> skel2 --> ... + * + * qh->node is the software equivalent of qh->link. The differences + * are that the software list is doubly-linked and QHs in the UNLINKING + * state are on the software list but not the hardware schedule. + * + * For bookkeeping purposes we maintain QHs even for Isochronous endpoints, + * but they never get added to the hardware schedule. */ +#define QH_STATE_IDLE 1 /* QH is not being used */ +#define QH_STATE_UNLINKING 2 /* QH has been removed from the + * schedule but the hardware may + * still be using it */ +#define QH_STATE_ACTIVE 3 /* QH is on the schedule */ + struct uhci_qh { /* Hardware fields */ - __le32 link; /* Next queue */ - __le32 element; /* Queue element pointer */ + __le32 link; /* Next QH in the schedule */ + __le32 element; /* Queue element (TD) pointer */ /* Software fields */ dma_addr_t dma_handle; - struct urb_priv *urbp; + struct list_head node; /* Node in the list of QHs */ + struct usb_host_endpoint *hep; /* Endpoint information */ + struct usb_device *udev; + struct list_head queue; /* Queue of urbps for this QH */ + struct uhci_qh *skel; /* Skeleton for this QH */ + struct uhci_td *dummy_td; /* Dummy TD to end the queue */ - struct list_head list; - struct list_head remove_list; + unsigned int unlink_frame; /* When the QH was unlinked */ + int state; /* QH_STATE_xxx; see above */ + + unsigned int initial_toggle:1; /* Endpoint's current toggle value */ + unsigned int needs_fixup:1; /* Must fix the TD toggle values */ + unsigned int is_stopped:1; /* Queue was stopped by an error */ } __attribute__((aligned(16))); /* * We need a special accessor for the element pointer because it is * subject to asynchronous updates by the controller. */ -static __le32 inline qh_element(struct uhci_qh *qh) { +static inline __le32 qh_element(struct uhci_qh *qh) { __le32 element = qh->element; barrier(); @@ -149,11 +173,13 @@ static __le32 inline qh_element(struct uhci_qh *qh) { #define TD_CTRL_ACTLEN_MASK 0x7FF /* actual length, encoded as n - 1 */ #define TD_CTRL_ANY_ERROR (TD_CTRL_STALLED | TD_CTRL_DBUFERR | \ - TD_CTRL_BABBLE | TD_CTRL_CRCTIME | TD_CTRL_BITSTUFF) + TD_CTRL_BABBLE | TD_CTRL_CRCTIME | \ + TD_CTRL_BITSTUFF) #define uhci_maxerr(err) ((err) << TD_CTRL_C_ERR_SHIFT) #define uhci_status_bits(ctrl_sts) ((ctrl_sts) & 0xF60000) -#define uhci_actual_length(ctrl_sts) (((ctrl_sts) + 1) & TD_CTRL_ACTLEN_MASK) /* 1-based */ +#define uhci_actual_length(ctrl_sts) (((ctrl_sts) + 1) & \ + TD_CTRL_ACTLEN_MASK) /* 1-based */ /* * for TD <info>: (a.k.a. Token) @@ -163,7 +189,7 @@ static __le32 inline qh_element(struct uhci_qh *qh) { #define TD_TOKEN_TOGGLE_SHIFT 19 #define TD_TOKEN_TOGGLE (1 << 19) #define TD_TOKEN_EXPLEN_SHIFT 21 -#define TD_TOKEN_EXPLEN_MASK 0x7FF /* expected length, encoded as n - 1 */ +#define TD_TOKEN_EXPLEN_MASK 0x7FF /* expected length, encoded as n-1 */ #define TD_TOKEN_PID_MASK 0xFF #define uhci_explen(len) ((((len) - 1) & TD_TOKEN_EXPLEN_MASK) << \ @@ -187,7 +213,7 @@ static __le32 inline qh_element(struct uhci_qh *qh) { * sw space after the TD entry. * * td->link points to either another TD (not necessarily for the same urb or - * even the same endpoint), or nothing (PTR_TERM), or a QH (for queued urbs). + * even the same endpoint), or nothing (PTR_TERM), or a QH. */ struct uhci_td { /* Hardware fields */ @@ -210,7 +236,7 @@ struct uhci_td { * We need a special accessor for the control/status word because it is * subject to asynchronous updates by the controller. */ -static u32 inline td_status(struct uhci_td *td) { +static inline u32 td_status(struct uhci_td *td) { __le32 status = td->status; barrier(); @@ -223,17 +249,14 @@ static u32 inline td_status(struct uhci_td *td) { */ /* - * The UHCI driver places Interrupt, Control and Bulk into QHs both - * to group together TDs for one transfer, and also to facilitate queuing - * of URBs. To make it easy to insert entries into the schedule, we have - * a skeleton of QHs for each predefined Interrupt latency, low-speed - * control, full-speed control and terminating QH (see explanation for - * the terminating QH below). + * The UHCI driver uses QHs with Interrupt, Control and Bulk URBs for + * automatic queuing. To make it easy to insert entries into the schedule, + * we have a skeleton of QHs for each predefined Interrupt latency, + * low-speed control, full-speed control, bulk, and terminating QH + * (see explanation for the terminating QH below). * * When we want to add a new QH, we add it to the end of the list for the - * skeleton QH. - * - * For instance, the queue can look like this: + * skeleton QH. For instance, the schedule list can look like this: * * skel int128 QH * dev 1 interrupt QH @@ -256,26 +279,31 @@ static u32 inline td_status(struct uhci_td *td) { * - To loop back to the full-speed control queue for full-speed bandwidth * reclamation. * - * Isochronous transfers are stored before the start of the skeleton - * schedule and don't use QHs. While the UHCI spec doesn't forbid the - * use of QHs for Isochronous, it doesn't use them either. And the spec - * says that queues never advance on an error completion status, which - * makes them totally unsuitable for Isochronous transfers. + * There's a special skeleton QH for Isochronous QHs. It never appears + * on the schedule, and Isochronous TDs go on the schedule before the + * the skeleton QHs. The hardware accesses them directly rather than + * through their QH, which is used only for bookkeeping purposes. + * While the UHCI spec doesn't forbid the use of QHs for Isochronous, + * it doesn't use them either. And the spec says that queues never + * advance on an error completion status, which makes them totally + * unsuitable for Isochronous transfers. */ -#define UHCI_NUM_SKELQH 12 -#define skel_int128_qh skelqh[0] -#define skel_int64_qh skelqh[1] -#define skel_int32_qh skelqh[2] -#define skel_int16_qh skelqh[3] -#define skel_int8_qh skelqh[4] -#define skel_int4_qh skelqh[5] -#define skel_int2_qh skelqh[6] -#define skel_int1_qh skelqh[7] -#define skel_ls_control_qh skelqh[8] -#define skel_fs_control_qh skelqh[9] -#define skel_bulk_qh skelqh[10] -#define skel_term_qh skelqh[11] +#define UHCI_NUM_SKELQH 14 +#define skel_unlink_qh skelqh[0] +#define skel_iso_qh skelqh[1] +#define skel_int128_qh skelqh[2] +#define skel_int64_qh skelqh[3] +#define skel_int32_qh skelqh[4] +#define skel_int16_qh skelqh[5] +#define skel_int8_qh skelqh[6] +#define skel_int4_qh skelqh[7] +#define skel_int2_qh skelqh[8] +#define skel_int1_qh skelqh[9] +#define skel_ls_control_qh skelqh[10] +#define skel_fs_control_qh skelqh[11] +#define skel_bulk_qh skelqh[12] +#define skel_term_qh skelqh[13] /* * Search tree for determining where <interval> fits in the skelqh[] @@ -293,21 +321,21 @@ static inline int __interval_to_skel(int interval) if (interval < 16) { if (interval < 4) { if (interval < 2) - return 7; /* int1 for 0-1 ms */ - return 6; /* int2 for 2-3 ms */ + return 9; /* int1 for 0-1 ms */ + return 8; /* int2 for 2-3 ms */ } if (interval < 8) - return 5; /* int4 for 4-7 ms */ - return 4; /* int8 for 8-15 ms */ + return 7; /* int4 for 4-7 ms */ + return 6; /* int8 for 8-15 ms */ } if (interval < 64) { if (interval < 32) - return 3; /* int16 for 16-31 ms */ - return 2; /* int32 for 32-63 ms */ + return 5; /* int16 for 16-31 ms */ + return 4; /* int32 for 32-63 ms */ } if (interval < 128) - return 1; /* int64 for 64-127 ms */ - return 0; /* int128 for 128-255 ms (Max.) */ + return 3; /* int64 for 64-127 ms */ + return 2; /* int128 for 128-255 ms (Max.) */ } @@ -360,15 +388,16 @@ struct uhci_hcd { struct uhci_td *term_td; /* Terminating TD, see UHCI bug */ struct uhci_qh *skelqh[UHCI_NUM_SKELQH]; /* Skeleton QHs */ + struct uhci_qh *next_qh; /* Next QH to scan */ spinlock_t lock; - dma_addr_t frame_dma_handle; /* Hardware frame list */ + dma_addr_t frame_dma_handle; /* Hardware frame list */ __le32 *frame; - void **frame_cpu; /* CPU's frame list */ + void **frame_cpu; /* CPU's frame list */ - int fsbr; /* Full-speed bandwidth reclamation */ - unsigned long fsbrtimeout; /* FSBR delay */ + int fsbr; /* Full-speed bandwidth reclamation */ + unsigned long fsbrtimeout; /* FSBR delay */ enum uhci_rh_state rh_state; unsigned long auto_stop_time; /* When to AUTO_STOP */ @@ -382,6 +411,7 @@ struct uhci_hcd { unsigned int hc_inaccessible:1; /* HC is suspended or dead */ unsigned int working_RD:1; /* Suspended root hub doesn't need to be polled */ + unsigned int is_initialized:1; /* Data structure is usable */ /* Support for port suspend/resume/reset */ unsigned long port_c_suspend; /* Bit-arrays of ports */ @@ -389,27 +419,16 @@ struct uhci_hcd { unsigned long resuming_ports; unsigned long ports_timeout; /* Time to stop signalling */ - /* Main list of URBs currently controlled by this HC */ - struct list_head urb_list; - - /* List of QHs that are done, but waiting to be unlinked (race) */ - struct list_head qh_remove_list; - unsigned int qh_remove_age; /* Age in frames */ - /* List of TDs that are done, but waiting to be freed (race) */ struct list_head td_remove_list; unsigned int td_remove_age; /* Age in frames */ - /* List of asynchronously unlinked URBs */ - struct list_head urb_remove_list; - unsigned int urb_remove_age; /* Age in frames */ - - /* List of URBs awaiting completion callback */ - struct list_head complete_list; + struct list_head idle_qh_list; /* Where the idle QHs live */ int rh_numports; /* Number of root-hub ports */ wait_queue_head_t waitqh; /* endpoint_disable waiters */ + int num_waiting; /* Number of waiters */ }; /* Convert between a usb_hcd pointer and the corresponding uhci_hcd */ @@ -429,7 +448,7 @@ static inline struct usb_hcd *uhci_to_hcd(struct uhci_hcd *uhci) * Private per-URB data */ struct urb_priv { - struct list_head urb_list; + struct list_head node; /* Node in the QH's urbp list */ struct urb *urb; @@ -437,15 +456,8 @@ struct urb_priv { struct list_head td_list; unsigned fsbr : 1; /* URB turned on FSBR */ - unsigned fsbr_timeout : 1; /* URB timed out on FSBR */ - unsigned queued : 1; /* QH was queued (not linked in) */ - unsigned short_control_packet : 1; /* If we get a short packet during */ - /* a control transfer, retrigger */ - /* the status phase */ - - unsigned long fsbrtime; /* In jiffies */ - - struct list_head queue_list; + unsigned short_transfer : 1; /* URB got a short transfer, no + * need to rescan */ }; diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c index a71e48a..152971d 100644 --- a/drivers/usb/host/uhci-hub.c +++ b/drivers/usb/host/uhci-hub.c @@ -99,6 +99,21 @@ static void uhci_finish_suspend(struct uhci_hcd *uhci, int port, } } +/* Wait for the UHCI controller in HP's iLO2 server management chip. + * It can take up to 250 us to finish a reset and set the CSC bit. + */ +static void wait_for_HP(unsigned long port_addr) +{ + int i; + + for (i = 10; i < 250; i += 10) { + if (inw(port_addr) & USBPORTSC_CSC) + return; + udelay(10); + } + /* Log a warning? */ +} + static void uhci_check_ports(struct uhci_hcd *uhci) { unsigned int port; @@ -113,6 +128,12 @@ static void uhci_check_ports(struct uhci_hcd *uhci) CLR_RH_PORTSTAT(USBPORTSC_PR); udelay(10); + /* HP's server management chip requires + * a longer delay. */ + if (to_pci_dev(uhci_dev(uhci))->vendor == + PCI_VENDOR_ID_HP) + wait_for_HP(port_addr); + /* If the port was enabled before, turning * reset on caused a port enable change. * Turning reset off causes a port connect diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c index 7823980..a06d84c 100644 --- a/drivers/usb/host/uhci-q.c +++ b/drivers/usb/host/uhci-q.c @@ -13,13 +13,9 @@ * (C) Copyright 2000 Yggdrasil Computing, Inc. (port of new PCI interface * support from usb-ohci.c by Adam Richter, adam@yggdrasil.com). * (C) Copyright 1999 Gregory P. Smith (from usb-ohci.c) - * (C) Copyright 2004 Alan Stern, stern@rowland.harvard.edu + * (C) Copyright 2004-2005 Alan Stern, stern@rowland.harvard.edu */ -static int uhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb); -static void uhci_unlink_generic(struct uhci_hcd *uhci, struct urb *urb); -static void uhci_remove_pending_urbps(struct uhci_hcd *uhci); -static void uhci_free_pending_qhs(struct uhci_hcd *uhci); static void uhci_free_pending_tds(struct uhci_hcd *uhci); /* @@ -30,7 +26,7 @@ static void uhci_free_pending_tds(struct uhci_hcd *uhci); * games with the FSBR code to make sure we get the correct order in all * the cases. I don't think it's worth the effort */ -static inline void uhci_set_next_interrupt(struct uhci_hcd *uhci) +static void uhci_set_next_interrupt(struct uhci_hcd *uhci) { if (uhci->is_stopped) mod_timer(&uhci_to_hcd(uhci)->rh_timer, jiffies); @@ -42,12 +38,6 @@ static inline void uhci_clear_next_interrupt(struct uhci_hcd *uhci) uhci->term_td->status &= ~cpu_to_le32(TD_CTRL_IOC); } -static inline void uhci_moveto_complete(struct uhci_hcd *uhci, - struct urb_priv *urbp) -{ - list_move_tail(&urbp->urb_list, &uhci->complete_list); -} - static struct uhci_td *uhci_alloc_td(struct uhci_hcd *uhci) { dma_addr_t dma_handle; @@ -58,10 +48,6 @@ static struct uhci_td *uhci_alloc_td(struct uhci_hcd *uhci) return NULL; td->dma_handle = dma_handle; - - td->link = UHCI_PTR_TERM; - td->buffer = 0; - td->frame = -1; INIT_LIST_HEAD(&td->list); @@ -71,6 +57,18 @@ static struct uhci_td *uhci_alloc_td(struct uhci_hcd *uhci) return td; } +static void uhci_free_td(struct uhci_hcd *uhci, struct uhci_td *td) +{ + if (!list_empty(&td->list)) + dev_warn(uhci_dev(uhci), "td %p still in list!\n", td); + if (!list_empty(&td->remove_list)) + dev_warn(uhci_dev(uhci), "td %p still in remove_list!\n", td); + if (!list_empty(&td->fl_list)) + dev_warn(uhci_dev(uhci), "td %p still in fl_list!\n", td); + + dma_pool_free(uhci->td_pool, td, td->dma_handle); +} + static inline void uhci_fill_td(struct uhci_td *td, u32 status, u32 token, u32 buffer) { @@ -82,7 +80,8 @@ static inline void uhci_fill_td(struct uhci_td *td, u32 status, /* * We insert Isochronous URBs directly into the frame list at the beginning */ -static void uhci_insert_td_frame_list(struct uhci_hcd *uhci, struct uhci_td *td, unsigned framenum) +static inline void uhci_insert_td_in_frame_list(struct uhci_hcd *uhci, + struct uhci_td *td, unsigned framenum) { framenum &= (UHCI_NUMFRAMES - 1); @@ -108,7 +107,7 @@ static void uhci_insert_td_frame_list(struct uhci_hcd *uhci, struct uhci_td *td, } } -static inline void uhci_remove_td_frame_list(struct uhci_hcd *uhci, +static inline void uhci_remove_td_from_frame_list(struct uhci_hcd *uhci, struct uhci_td *td) { /* If it's not inserted, don't remove it */ @@ -139,48 +138,21 @@ static inline void uhci_remove_td_frame_list(struct uhci_hcd *uhci, td->frame = -1; } -static void unlink_isochronous_tds(struct uhci_hcd *uhci, struct urb *urb) +/* + * Remove all the TDs for an Isochronous URB from the frame list + */ +static void uhci_unlink_isochronous_tds(struct uhci_hcd *uhci, struct urb *urb) { struct urb_priv *urbp = (struct urb_priv *) urb->hcpriv; struct uhci_td *td; list_for_each_entry(td, &urbp->td_list, list) - uhci_remove_td_frame_list(uhci, td); + uhci_remove_td_from_frame_list(uhci, td); wmb(); } -/* - * Inserts a td list into qh. - */ -static void uhci_insert_tds_in_qh(struct uhci_qh *qh, struct urb *urb, __le32 breadth) -{ - struct urb_priv *urbp = (struct urb_priv *)urb->hcpriv; - struct uhci_td *td; - __le32 *plink; - - /* Ordering isn't important here yet since the QH hasn't been */ - /* inserted into the schedule yet */ - plink = &qh->element; - list_for_each_entry(td, &urbp->td_list, list) { - *plink = cpu_to_le32(td->dma_handle) | breadth; - plink = &td->link; - } - *plink = UHCI_PTR_TERM; -} - -static void uhci_free_td(struct uhci_hcd *uhci, struct uhci_td *td) -{ - if (!list_empty(&td->list)) - dev_warn(uhci_dev(uhci), "td %p still in list!\n", td); - if (!list_empty(&td->remove_list)) - dev_warn(uhci_dev(uhci), "td %p still in remove_list!\n", td); - if (!list_empty(&td->fl_list)) - dev_warn(uhci_dev(uhci), "td %p still in fl_list!\n", td); - - dma_pool_free(uhci->td_pool, td, td->dma_handle); -} - -static struct uhci_qh *uhci_alloc_qh(struct uhci_hcd *uhci) +static struct uhci_qh *uhci_alloc_qh(struct uhci_hcd *uhci, + struct usb_device *udev, struct usb_host_endpoint *hep) { dma_addr_t dma_handle; struct uhci_qh *qh; @@ -194,256 +166,217 @@ static struct uhci_qh *uhci_alloc_qh(struct uhci_hcd *uhci) qh->element = UHCI_PTR_TERM; qh->link = UHCI_PTR_TERM; - qh->urbp = NULL; - - INIT_LIST_HEAD(&qh->list); - INIT_LIST_HEAD(&qh->remove_list); + INIT_LIST_HEAD(&qh->queue); + INIT_LIST_HEAD(&qh->node); + if (udev) { /* Normal QH */ + qh->dummy_td = uhci_alloc_td(uhci); + if (!qh->dummy_td) { + dma_pool_free(uhci->qh_pool, qh, dma_handle); + return NULL; + } + qh->state = QH_STATE_IDLE; + qh->hep = hep; + qh->udev = udev; + hep->hcpriv = qh; + + } else { /* Skeleton QH */ + qh->state = QH_STATE_ACTIVE; + qh->udev = NULL; + } return qh; } static void uhci_free_qh(struct uhci_hcd *uhci, struct uhci_qh *qh) { - if (!list_empty(&qh->list)) + WARN_ON(qh->state != QH_STATE_IDLE && qh->udev); + if (!list_empty(&qh->queue)) dev_warn(uhci_dev(uhci), "qh %p list not empty!\n", qh); - if (!list_empty(&qh->remove_list)) - dev_warn(uhci_dev(uhci), "qh %p still in remove_list!\n", qh); + list_del(&qh->node); + if (qh->udev) { + qh->hep->hcpriv = NULL; + uhci_free_td(uhci, qh->dummy_td); + } dma_pool_free(uhci->qh_pool, qh, qh->dma_handle); } /* - * Append this urb's qh after the last qh in skelqh->list - * - * Note that urb_priv.queue_list doesn't have a separate queue head; - * it's a ring with every element "live". + * When the currently executing URB is dequeued, save its current toggle value */ -static void uhci_insert_qh(struct uhci_hcd *uhci, struct uhci_qh *skelqh, struct urb *urb) +static void uhci_save_toggle(struct uhci_qh *qh, struct urb *urb) { - struct urb_priv *urbp = (struct urb_priv *)urb->hcpriv; - struct urb_priv *turbp; - struct uhci_qh *lqh; + struct urb_priv *urbp = (struct urb_priv *) urb->hcpriv; + struct uhci_td *td; - /* Grab the last QH */ - lqh = list_entry(skelqh->list.prev, struct uhci_qh, list); + /* If the QH element pointer is UHCI_PTR_TERM then then currently + * executing URB has already been unlinked, so this one isn't it. */ + if (qh_element(qh) == UHCI_PTR_TERM || + qh->queue.next != &urbp->node) + return; + qh->element = UHCI_PTR_TERM; - /* Point to the next skelqh */ - urbp->qh->link = lqh->link; - wmb(); /* Ordering is important */ + /* Only bulk and interrupt pipes have to worry about toggles */ + if (!(usb_pipetype(urb->pipe) == PIPE_BULK || + usb_pipetype(urb->pipe) == PIPE_INTERRUPT)) + return; - /* - * Patch QHs for previous endpoint's queued URBs? HC goes - * here next, not to the next skelqh it now points to. - * - * lqh --> td ... --> qh ... --> td --> qh ... --> td - * | | | - * v v v - * +<----------------+-----------------+ - * v - * newqh --> td ... --> td - * | - * v - * ... - * - * The HC could see (and use!) any of these as we write them. - */ - lqh->link = cpu_to_le32(urbp->qh->dma_handle) | UHCI_PTR_QH; - if (lqh->urbp) { - list_for_each_entry(turbp, &lqh->urbp->queue_list, queue_list) - turbp->qh->link = lqh->link; + /* Find the first active TD; that's the device's toggle state */ + list_for_each_entry(td, &urbp->td_list, list) { + if (td_status(td) & TD_CTRL_ACTIVE) { + qh->needs_fixup = 1; + qh->initial_toggle = uhci_toggle(td_token(td)); + return; + } } - list_add_tail(&urbp->qh->list, &skelqh->list); + WARN_ON(1); } /* - * Start removal of QH from schedule; it finishes next frame. - * TDs should be unlinked before this is called. + * Fix up the data toggles for URBs in a queue, when one of them + * terminates early (short transfer, error, or dequeued). */ -static void uhci_remove_qh(struct uhci_hcd *uhci, struct uhci_qh *qh) +static void uhci_fixup_toggles(struct uhci_qh *qh, int skip_first) { - struct uhci_qh *pqh; - __le32 newlink; - - if (!qh) - return; - - /* - * Only go through the hoops if it's actually linked in - */ - if (!list_empty(&qh->list)) { - - /* If our queue is nonempty, make the next URB the head */ - if (!list_empty(&qh->urbp->queue_list)) { - struct urb_priv *nurbp; - - nurbp = list_entry(qh->urbp->queue_list.next, - struct urb_priv, queue_list); - nurbp->queued = 0; - list_add(&nurbp->qh->list, &qh->list); - newlink = cpu_to_le32(nurbp->qh->dma_handle) | UHCI_PTR_QH; - } else - newlink = qh->link; - - /* Fix up the previous QH's queue to link to either - * the new head of this queue or the start of the - * next endpoint's queue. */ - pqh = list_entry(qh->list.prev, struct uhci_qh, list); - pqh->link = newlink; - if (pqh->urbp) { - struct urb_priv *turbp; - - list_for_each_entry(turbp, &pqh->urbp->queue_list, - queue_list) - turbp->qh->link = newlink; + struct urb_priv *urbp = NULL; + struct uhci_td *td; + unsigned int toggle = qh->initial_toggle; + unsigned int pipe; + + /* Fixups for a short transfer start with the second URB in the + * queue (the short URB is the first). */ + if (skip_first) + urbp = list_entry(qh->queue.next, struct urb_priv, node); + + /* When starting with the first URB, if the QH element pointer is + * still valid then we know the URB's toggles are okay. */ + else if (qh_element(qh) != UHCI_PTR_TERM) + toggle = 2; + + /* Fix up the toggle for the URBs in the queue. Normally this + * loop won't run more than once: When an error or short transfer + * occurs, the queue usually gets emptied. */ + urbp = list_prepare_entry(urbp, &qh->queue, node); + list_for_each_entry_continue(urbp, &qh->queue, node) { + + /* If the first TD has the right toggle value, we don't + * need to change any toggles in this URB */ + td = list_entry(urbp->td_list.next, struct uhci_td, list); + if (toggle > 1 || uhci_toggle(td_token(td)) == toggle) { + td = list_entry(urbp->td_list.next, struct uhci_td, + list); + toggle = uhci_toggle(td_token(td)) ^ 1; + + /* Otherwise all the toggles in the URB have to be switched */ + } else { + list_for_each_entry(td, &urbp->td_list, list) { + td->token ^= __constant_cpu_to_le32( + TD_TOKEN_TOGGLE); + toggle ^= 1; + } } - wmb(); - - /* Leave qh->link in case the HC is on the QH now, it will */ - /* continue the rest of the schedule */ - qh->element = UHCI_PTR_TERM; - - list_del_init(&qh->list); - } - - list_del_init(&qh->urbp->queue_list); - qh->urbp = NULL; - - uhci_get_current_frame_number(uhci); - if (uhci->frame_number + uhci->is_stopped != uhci->qh_remove_age) { - uhci_free_pending_qhs(uhci); - uhci->qh_remove_age = uhci->frame_number; } - /* Check to see if the remove list is empty. Set the IOC bit */ - /* to force an interrupt so we can remove the QH */ - if (list_empty(&uhci->qh_remove_list)) - uhci_set_next_interrupt(uhci); - - list_add(&qh->remove_list, &uhci->qh_remove_list); + wmb(); + pipe = list_entry(qh->queue.next, struct urb_priv, node)->urb->pipe; + usb_settoggle(qh->udev, usb_pipeendpoint(pipe), + usb_pipeout(pipe), toggle); + qh->needs_fixup = 0; } -static int uhci_fixup_toggle(struct urb *urb, unsigned int toggle) +/* + * Put a QH on the schedule in both hardware and software + */ +static void uhci_activate_qh(struct uhci_hcd *uhci, struct uhci_qh *qh) { - struct urb_priv *urbp = (struct urb_priv *)urb->hcpriv; - struct uhci_td *td; - - list_for_each_entry(td, &urbp->td_list, list) { - if (toggle) - td->token |= cpu_to_le32(TD_TOKEN_TOGGLE); - else - td->token &= ~cpu_to_le32(TD_TOKEN_TOGGLE); - - toggle ^= 1; - } - - return toggle; -} + struct uhci_qh *pqh; -/* This function will append one URB's QH to another URB's QH. This is for */ -/* queuing interrupt, control or bulk transfers */ -static void uhci_append_queued_urb(struct uhci_hcd *uhci, struct urb *eurb, struct urb *urb) -{ - struct urb_priv *eurbp, *urbp, *furbp, *lurbp; - struct uhci_td *lltd; + WARN_ON(list_empty(&qh->queue)); - eurbp = eurb->hcpriv; - urbp = urb->hcpriv; + /* Set the element pointer if it isn't set already. + * This isn't needed for Isochronous queues, but it doesn't hurt. */ + if (qh_element(qh) == UHCI_PTR_TERM) { + struct urb_priv *urbp = list_entry(qh->queue.next, + struct urb_priv, node); + struct uhci_td *td = list_entry(urbp->td_list.next, + struct uhci_td, list); - /* Find the first URB in the queue */ - furbp = eurbp; - if (eurbp->queued) { - list_for_each_entry(furbp, &eurbp->queue_list, queue_list) - if (!furbp->queued) - break; + qh->element = cpu_to_le32(td->dma_handle); } - lurbp = list_entry(furbp->queue_list.prev, struct urb_priv, queue_list); - - lltd = list_entry(lurbp->td_list.prev, struct uhci_td, list); - - /* Control transfers always start with toggle 0 */ - if (!usb_pipecontrol(urb->pipe)) - usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), - usb_pipeout(urb->pipe), - uhci_fixup_toggle(urb, - uhci_toggle(td_token(lltd)) ^ 1)); - - /* All qhs in the queue need to link to the next queue */ - urbp->qh->link = eurbp->qh->link; - - wmb(); /* Make sure we flush everything */ - - lltd->link = cpu_to_le32(urbp->qh->dma_handle) | UHCI_PTR_QH; - - list_add_tail(&urbp->queue_list, &furbp->queue_list); - - urbp->queued = 1; + if (qh->state == QH_STATE_ACTIVE) + return; + qh->state = QH_STATE_ACTIVE; + + /* Move the QH from its old list to the end of the appropriate + * skeleton's list */ + if (qh == uhci->next_qh) + uhci->next_qh = list_entry(qh->node.next, struct uhci_qh, + node); + list_move_tail(&qh->node, &qh->skel->node); + + /* Link it into the schedule */ + pqh = list_entry(qh->node.prev, struct uhci_qh, node); + qh->link = pqh->link; + wmb(); + pqh->link = UHCI_PTR_QH | cpu_to_le32(qh->dma_handle); } -static void uhci_delete_queued_urb(struct uhci_hcd *uhci, struct urb *urb) +/* + * Take a QH off the hardware schedule + */ +static void uhci_unlink_qh(struct uhci_hcd *uhci, struct uhci_qh *qh) { - struct urb_priv *urbp, *nurbp, *purbp, *turbp; - struct uhci_td *pltd; - unsigned int toggle; - - urbp = urb->hcpriv; + struct uhci_qh *pqh; - if (list_empty(&urbp->queue_list)) + if (qh->state == QH_STATE_UNLINKING) return; + WARN_ON(qh->state != QH_STATE_ACTIVE || !qh->udev); + qh->state = QH_STATE_UNLINKING; - nurbp = list_entry(urbp->queue_list.next, struct urb_priv, queue_list); + /* Unlink the QH from the schedule and record when we did it */ + pqh = list_entry(qh->node.prev, struct uhci_qh, node); + pqh->link = qh->link; + mb(); - /* - * Fix up the toggle for the following URBs in the queue. - * Only needed for bulk and interrupt: control and isochronous - * endpoints don't propagate toggles between messages. - */ - if (usb_pipebulk(urb->pipe) || usb_pipeint(urb->pipe)) { - if (!urbp->queued) - /* We just set the toggle in uhci_unlink_generic */ - toggle = usb_gettoggle(urb->dev, - usb_pipeendpoint(urb->pipe), - usb_pipeout(urb->pipe)); - else { - /* If we're in the middle of the queue, grab the */ - /* toggle from the TD previous to us */ - purbp = list_entry(urbp->queue_list.prev, - struct urb_priv, queue_list); - pltd = list_entry(purbp->td_list.prev, - struct uhci_td, list); - toggle = uhci_toggle(td_token(pltd)) ^ 1; - } + uhci_get_current_frame_number(uhci); + qh->unlink_frame = uhci->frame_number; - list_for_each_entry(turbp, &urbp->queue_list, queue_list) { - if (!turbp->queued) - break; - toggle = uhci_fixup_toggle(turbp->urb, toggle); - } + /* Force an interrupt so we know when the QH is fully unlinked */ + if (list_empty(&uhci->skel_unlink_qh->node)) + uhci_set_next_interrupt(uhci); - usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), - usb_pipeout(urb->pipe), toggle); - } + /* Move the QH from its old list to the end of the unlinking list */ + if (qh == uhci->next_qh) + uhci->next_qh = list_entry(qh->node.next, struct uhci_qh, + node); + list_move_tail(&qh->node, &uhci->skel_unlink_qh->node); +} - if (urbp->queued) { - /* We're somewhere in the middle (or end). The case where - * we're at the head is handled in uhci_remove_qh(). */ - purbp = list_entry(urbp->queue_list.prev, struct urb_priv, - queue_list); +/* + * When we and the controller are through with a QH, it becomes IDLE. + * This happens when a QH has been off the schedule (on the unlinking + * list) for more than one frame, or when an error occurs while adding + * the first URB onto a new QH. + */ +static void uhci_make_qh_idle(struct uhci_hcd *uhci, struct uhci_qh *qh) +{ + WARN_ON(qh->state == QH_STATE_ACTIVE); - pltd = list_entry(purbp->td_list.prev, struct uhci_td, list); - if (nurbp->queued) - pltd->link = cpu_to_le32(nurbp->qh->dma_handle) | UHCI_PTR_QH; - else - /* The next URB happens to be the beginning, so */ - /* we're the last, end the chain */ - pltd->link = UHCI_PTR_TERM; - } + if (qh == uhci->next_qh) + uhci->next_qh = list_entry(qh->node.next, struct uhci_qh, + node); + list_move(&qh->node, &uhci->idle_qh_list); + qh->state = QH_STATE_IDLE; - /* urbp->queue_list is handled in uhci_remove_qh() */ + /* If anyone is waiting for a QH to become idle, wake them up */ + if (uhci->num_waiting) + wake_up_all(&uhci->waitqh); } -static struct urb_priv *uhci_alloc_urb_priv(struct uhci_hcd *uhci, struct urb *urb) +static inline struct urb_priv *uhci_alloc_urb_priv(struct uhci_hcd *uhci, + struct urb *urb) { struct urb_priv *urbp; @@ -453,16 +386,11 @@ static struct urb_priv *uhci_alloc_urb_priv(struct uhci_hcd *uhci, struct urb *u memset((void *)urbp, 0, sizeof(*urbp)); - urbp->fsbrtime = jiffies; urbp->urb = urb; + urb->hcpriv = urbp; + INIT_LIST_HEAD(&urbp->node); INIT_LIST_HEAD(&urbp->td_list); - INIT_LIST_HEAD(&urbp->queue_list); - INIT_LIST_HEAD(&urbp->urb_list); - - list_add_tail(&urbp->urb_list, &uhci->urb_list); - - urb->hcpriv = urbp; return urbp; } @@ -482,18 +410,14 @@ static void uhci_remove_td_from_urb(struct uhci_td *td) list_del_init(&td->list); } -static void uhci_destroy_urb_priv(struct uhci_hcd *uhci, struct urb *urb) +static void uhci_free_urb_priv(struct uhci_hcd *uhci, + struct urb_priv *urbp) { struct uhci_td *td, *tmp; - struct urb_priv *urbp; - - urbp = (struct urb_priv *)urb->hcpriv; - if (!urbp) - return; - if (!list_empty(&urbp->urb_list)) - dev_warn(uhci_dev(uhci), "urb %p still on uhci->urb_list " - "or uhci->remove_list!\n", urb); + if (!list_empty(&urbp->node)) + dev_warn(uhci_dev(uhci), "urb %p still on QH's list!\n", + urbp->urb); uhci_get_current_frame_number(uhci); if (uhci->frame_number + uhci->is_stopped != uhci->td_remove_age) { @@ -502,7 +426,7 @@ static void uhci_destroy_urb_priv(struct uhci_hcd *uhci, struct urb *urb) } /* Check to see if the remove list is empty. Set the IOC bit */ - /* to force an interrupt so we can remove the TDs*/ + /* to force an interrupt so we can remove the TDs. */ if (list_empty(&uhci->td_remove_list)) uhci_set_next_interrupt(uhci); @@ -511,7 +435,7 @@ static void uhci_destroy_urb_priv(struct uhci_hcd *uhci, struct urb *urb) list_add(&td->remove_list, &uhci->td_remove_list); } - urb->hcpriv = NULL; + urbp->urb->hcpriv = NULL; kmem_cache_free(uhci_up_cachep, urbp); } @@ -570,34 +494,33 @@ static int uhci_map_status(int status, int dir_out) /* * Control transfers */ -static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb, struct urb *eurb) +static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb, + struct uhci_qh *qh) { - struct urb_priv *urbp = (struct urb_priv *)urb->hcpriv; struct uhci_td *td; - struct uhci_qh *qh, *skelqh; unsigned long destination, status; - int maxsze = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)); + int maxsze = le16_to_cpu(qh->hep->desc.wMaxPacketSize); int len = urb->transfer_buffer_length; dma_addr_t data = urb->transfer_dma; + __le32 *plink; /* The "pipe" thing contains the destination in bits 8--18 */ destination = (urb->pipe & PIPE_DEVEP_MASK) | USB_PID_SETUP; - /* 3 errors */ - status = TD_CTRL_ACTIVE | uhci_maxerr(3); + /* 3 errors, dummy TD remains inactive */ + status = uhci_maxerr(3); if (urb->dev->speed == USB_SPEED_LOW) status |= TD_CTRL_LS; /* * Build the TD for the control request setup packet */ - td = uhci_alloc_td(uhci); - if (!td) - return -ENOMEM; - + td = qh->dummy_td; uhci_add_td_to_urb(urb, td); uhci_fill_td(td, status, destination | uhci_explen(8), - urb->setup_dma); + urb->setup_dma); + plink = &td->link; + status |= TD_CTRL_ACTIVE; /* * If direction is "send", change the packet ID from SETUP (0x2D) @@ -615,21 +538,20 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb, struct ur * Build the DATA TDs */ while (len > 0) { - int pktsze = len; - - if (pktsze > maxsze) - pktsze = maxsze; + int pktsze = min(len, maxsze); td = uhci_alloc_td(uhci); if (!td) - return -ENOMEM; + goto nomem; + *plink = cpu_to_le32(td->dma_handle); /* Alternate Data0/1 (start with Data1) */ destination ^= TD_TOKEN_TOGGLE; uhci_add_td_to_urb(urb, td); uhci_fill_td(td, status, destination | uhci_explen(pktsze), - data); + data); + plink = &td->link; data += pktsze; len -= pktsze; @@ -640,7 +562,8 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb, struct ur */ td = uhci_alloc_td(uhci); if (!td) - return -ENOMEM; + goto nomem; + *plink = cpu_to_le32(td->dma_handle); /* * It's IN if the pipe is an output pipe or we're not expecting @@ -658,16 +581,21 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb, struct ur uhci_add_td_to_urb(urb, td); uhci_fill_td(td, status | TD_CTRL_IOC, - destination | uhci_explen(0), 0); - - qh = uhci_alloc_qh(uhci); - if (!qh) - return -ENOMEM; + destination | uhci_explen(0), 0); + plink = &td->link; - urbp->qh = qh; - qh->urbp = urbp; + /* + * Build the new dummy TD and activate the old one + */ + td = uhci_alloc_td(uhci); + if (!td) + goto nomem; + *plink = cpu_to_le32(td->dma_handle); - uhci_insert_tds_in_qh(qh, urb, UHCI_PTR_BREADTH); + uhci_fill_td(td, 0, USB_PID_OUT | uhci_explen(0), 0); + wmb(); + qh->dummy_td->status |= __constant_cpu_to_le32(TD_CTRL_ACTIVE); + qh->dummy_td = td; /* Low-speed transfers get a different queue, and won't hog the bus. * Also, some devices enumerate better without FSBR; the easiest way @@ -675,18 +603,17 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb, struct ur * isn't in the CONFIGURED state. */ if (urb->dev->speed == USB_SPEED_LOW || urb->dev->state != USB_STATE_CONFIGURED) - skelqh = uhci->skel_ls_control_qh; + qh->skel = uhci->skel_ls_control_qh; else { - skelqh = uhci->skel_fs_control_qh; + qh->skel = uhci->skel_fs_control_qh; uhci_inc_fsbr(uhci, urb); } + return 0; - if (eurb) - uhci_append_queued_urb(uhci, eurb, urb); - else - uhci_insert_qh(uhci, skelqh, urb); - - return -EINPROGRESS; +nomem: + /* Remove the dummy TD from the td_list so it doesn't get freed */ + uhci_remove_td_from_urb(qh->dummy_td); + return -ENOMEM; } /* @@ -703,7 +630,7 @@ static int usb_control_retrigger_status(struct uhci_hcd *uhci, struct urb *urb) struct urb_priv *urbp = (struct urb_priv *)urb->hcpriv; struct uhci_td *td; - urbp->short_control_packet = 1; + urbp->short_transfer = 1; td = list_entry(urbp->td_list.prev, struct uhci_td, list); urbp->qh->element = cpu_to_le32(td->dma_handle); @@ -720,16 +647,14 @@ static int uhci_result_control(struct uhci_hcd *uhci, struct urb *urb) unsigned int status; int ret = 0; - if (list_empty(&urbp->td_list)) - return -EINVAL; - head = &urbp->td_list; - - if (urbp->short_control_packet) { + if (urbp->short_transfer) { tmp = head->prev; goto status_stage; } + urb->actual_length = 0; + tmp = head->next; td = list_entry(tmp, struct uhci_td, list); @@ -742,8 +667,6 @@ static int uhci_result_control(struct uhci_hcd *uhci, struct urb *urb) if (status) goto td_error; - urb->actual_length = 0; - /* The rest of the TDs (but the last) are data */ tmp = tmp->next; while (tmp != head && tmp->next != head) { @@ -770,10 +693,7 @@ static int uhci_result_control(struct uhci_hcd *uhci, struct urb *urb) goto err; } - if (uhci_packetid(td_token(td)) == USB_PID_IN) - return usb_control_retrigger_status(uhci, urb); - else - return 0; + return usb_control_retrigger_status(uhci, urb); } } @@ -814,34 +734,40 @@ err: if (errbuf) { /* Print the chain for debugging purposes */ uhci_show_qh(urbp->qh, errbuf, ERRBUF_LEN, 0); - lprintk(errbuf); } } + /* Note that the queue has stopped */ + urbp->qh->element = UHCI_PTR_TERM; + urbp->qh->is_stopped = 1; return ret; } /* * Common submit for bulk and interrupt */ -static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb, struct urb *eurb, struct uhci_qh *skelqh) +static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb, + struct uhci_qh *qh) { struct uhci_td *td; - struct uhci_qh *qh; unsigned long destination, status; - int maxsze = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)); + int maxsze = le16_to_cpu(qh->hep->desc.wMaxPacketSize); int len = urb->transfer_buffer_length; - struct urb_priv *urbp = (struct urb_priv *)urb->hcpriv; dma_addr_t data = urb->transfer_dma; + __le32 *plink; + unsigned int toggle; if (len < 0) return -EINVAL; /* The "pipe" thing contains the destination in bits 8--18 */ destination = (urb->pipe & PIPE_DEVEP_MASK) | usb_packetid(urb->pipe); + toggle = usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), + usb_pipeout(urb->pipe)); - status = uhci_maxerr(3) | TD_CTRL_ACTIVE; + /* 3 errors, dummy TD remains inactive */ + status = uhci_maxerr(3); if (urb->dev->speed == USB_SPEED_LOW) status |= TD_CTRL_LS; if (usb_pipein(urb->pipe)) @@ -850,30 +776,34 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb, struct urb /* * Build the DATA TDs */ + plink = NULL; + td = qh->dummy_td; do { /* Allow zero length packets */ int pktsze = maxsze; - if (pktsze >= len) { + if (len <= pktsze) { /* The last packet */ pktsze = len; if (!(urb->transfer_flags & URB_SHORT_NOT_OK)) status &= ~TD_CTRL_SPD; } - td = uhci_alloc_td(uhci); - if (!td) - return -ENOMEM; - + if (plink) { + td = uhci_alloc_td(uhci); + if (!td) + goto nomem; + *plink = cpu_to_le32(td->dma_handle); + } uhci_add_td_to_urb(urb, td); - uhci_fill_td(td, status, destination | uhci_explen(pktsze) | - (usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), - usb_pipeout(urb->pipe)) << TD_TOKEN_TOGGLE_SHIFT), - data); + uhci_fill_td(td, status, + destination | uhci_explen(pktsze) | + (toggle << TD_TOKEN_TOGGLE_SHIFT), + data); + plink = &td->link; + status |= TD_CTRL_ACTIVE; data += pktsze; len -= maxsze; - - usb_dotoggle(urb->dev, usb_pipeendpoint(urb->pipe), - usb_pipeout(urb->pipe)); + toggle ^= 1; } while (len > 0); /* @@ -883,20 +813,22 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb, struct urb * however, if transfer_length == 0, the zero packet was already * prepared above. */ - if (usb_pipeout(urb->pipe) && (urb->transfer_flags & URB_ZERO_PACKET) && - !len && urb->transfer_buffer_length) { + if ((urb->transfer_flags & URB_ZERO_PACKET) && + usb_pipeout(urb->pipe) && len == 0 && + urb->transfer_buffer_length > 0) { td = uhci_alloc_td(uhci); if (!td) - return -ENOMEM; + goto nomem; + *plink = cpu_to_le32(td->dma_handle); uhci_add_td_to_urb(urb, td); - uhci_fill_td(td, status, destination | uhci_explen(0) | - (usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), - usb_pipeout(urb->pipe)) << TD_TOKEN_TOGGLE_SHIFT), - data); + uhci_fill_td(td, status, + destination | uhci_explen(0) | + (toggle << TD_TOKEN_TOGGLE_SHIFT), + data); + plink = &td->link; - usb_dotoggle(urb->dev, usb_pipeendpoint(urb->pipe), - usb_pipeout(urb->pipe)); + toggle ^= 1; } /* Set the interrupt-on-completion flag on the last packet. @@ -905,24 +837,29 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb, struct urb * fast side but not enough to justify delaying an interrupt * more than 2 or 3 URBs, so we will ignore the URB_NO_INTERRUPT * flag setting. */ - td->status |= cpu_to_le32(TD_CTRL_IOC); + td->status |= __constant_cpu_to_le32(TD_CTRL_IOC); - qh = uhci_alloc_qh(uhci); - if (!qh) - return -ENOMEM; - - urbp->qh = qh; - qh->urbp = urbp; + /* + * Build the new dummy TD and activate the old one + */ + td = uhci_alloc_td(uhci); + if (!td) + goto nomem; + *plink = cpu_to_le32(td->dma_handle); - /* Always breadth first */ - uhci_insert_tds_in_qh(qh, urb, UHCI_PTR_BREADTH); + uhci_fill_td(td, 0, USB_PID_OUT | uhci_explen(0), 0); + wmb(); + qh->dummy_td->status |= __constant_cpu_to_le32(TD_CTRL_ACTIVE); + qh->dummy_td = td; - if (eurb) - uhci_append_queued_urb(uhci, eurb, urb); - else - uhci_insert_qh(uhci, skelqh, urb); + usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), + usb_pipeout(urb->pipe), toggle); + return 0; - return -EINPROGRESS; +nomem: + /* Remove the dummy TD from the td_list so it doesn't get freed */ + uhci_remove_td_from_urb(qh->dummy_td); + return -ENOMEM; } /* @@ -954,8 +891,27 @@ static int uhci_result_common(struct uhci_hcd *uhci, struct urb *urb) if (urb->transfer_flags & URB_SHORT_NOT_OK) { ret = -EREMOTEIO; goto err; - } else - return 0; + } + + /* + * This URB stopped short of its end. We have to + * fix up the toggles of the following URBs on the + * queue and restart the queue. + * + * Do this only the first time we encounter the + * short URB. + */ + if (!urbp->short_transfer) { + urbp->short_transfer = 1; + urbp->qh->initial_toggle = + uhci_toggle(td_token(td)) ^ 1; + uhci_fixup_toggles(urbp->qh, 1); + + td = list_entry(urbp->td_list.prev, + struct uhci_td, list); + urbp->qh->element = td->link; + } + break; } } @@ -964,31 +920,30 @@ static int uhci_result_common(struct uhci_hcd *uhci, struct urb *urb) td_error: ret = uhci_map_status(status, uhci_packetout(td_token(td))); -err: - /* - * Enable this chunk of code if you want to see some more debugging. - * But be careful, it has the tendancy to starve out khubd and prevent - * disconnects from happening successfully if you have a slow debug - * log interface (like a serial console. - */ -#if 0 if ((debug == 1 && ret != -EPIPE) || debug > 1) { /* Some debugging code */ dev_dbg(uhci_dev(uhci), "%s: failed with status %x\n", __FUNCTION__, status); - if (errbuf) { + if (debug > 1 && errbuf) { /* Print the chain for debugging purposes */ uhci_show_qh(urbp->qh, errbuf, ERRBUF_LEN, 0); - lprintk(errbuf); } } -#endif +err: + + /* Note that the queue has stopped and save the next toggle value */ + urbp->qh->element = UHCI_PTR_TERM; + urbp->qh->is_stopped = 1; + urbp->qh->needs_fixup = 1; + urbp->qh->initial_toggle = uhci_toggle(td_token(td)) ^ + (ret == -EREMOTEIO); return ret; } -static inline int uhci_submit_bulk(struct uhci_hcd *uhci, struct urb *urb, struct urb *eurb) +static inline int uhci_submit_bulk(struct uhci_hcd *uhci, struct urb *urb, + struct uhci_qh *qh) { int ret; @@ -996,95 +951,60 @@ static inline int uhci_submit_bulk(struct uhci_hcd *uhci, struct urb *urb, struc if (urb->dev->speed == USB_SPEED_LOW) return -EINVAL; - ret = uhci_submit_common(uhci, urb, eurb, uhci->skel_bulk_qh); - if (ret == -EINPROGRESS) + qh->skel = uhci->skel_bulk_qh; + ret = uhci_submit_common(uhci, urb, qh); + if (ret == 0) uhci_inc_fsbr(uhci, urb); - return ret; } -static inline int uhci_submit_interrupt(struct uhci_hcd *uhci, struct urb *urb, struct urb *eurb) +static inline int uhci_submit_interrupt(struct uhci_hcd *uhci, struct urb *urb, + struct uhci_qh *qh) { - /* USB 1.1 interrupt transfers only involve one packet per interval; - * that's the uhci_submit_common() "breadth first" policy. Drivers - * can submit urbs of any length, but longer ones might need many - * intervals to complete. + /* USB 1.1 interrupt transfers only involve one packet per interval. + * Drivers can submit URBs of any length, but longer ones will need + * multiple intervals to complete. */ - return uhci_submit_common(uhci, urb, eurb, uhci->skelqh[__interval_to_skel(urb->interval)]); + qh->skel = uhci->skelqh[__interval_to_skel(urb->interval)]; + return uhci_submit_common(uhci, urb, qh); } /* * Isochronous transfers */ -static int isochronous_find_limits(struct uhci_hcd *uhci, struct urb *urb, unsigned int *start, unsigned int *end) -{ - struct urb *last_urb = NULL; - struct urb_priv *up; - int ret = 0; - - list_for_each_entry(up, &uhci->urb_list, urb_list) { - struct urb *u = up->urb; - - /* look for pending URBs with identical pipe handle */ - if ((urb->pipe == u->pipe) && (urb->dev == u->dev) && - (u->status == -EINPROGRESS) && (u != urb)) { - if (!last_urb) - *start = u->start_frame; - last_urb = u; - } - } - - if (last_urb) { - *end = (last_urb->start_frame + last_urb->number_of_packets * - last_urb->interval) & (UHCI_NUMFRAMES-1); - ret = 0; - } else - ret = -1; /* no previous urb found */ - - return ret; -} - -static int isochronous_find_start(struct uhci_hcd *uhci, struct urb *urb) +static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb, + struct uhci_qh *qh) { - int limits; - unsigned int start = 0, end = 0; + struct uhci_td *td = NULL; /* Since urb->number_of_packets > 0 */ + int i, frame; + unsigned long destination, status; + struct urb_priv *urbp = (struct urb_priv *) urb->hcpriv; if (urb->number_of_packets > 900) /* 900? Why? */ return -EFBIG; - limits = isochronous_find_limits(uhci, urb, &start, &end); + status = TD_CTRL_ACTIVE | TD_CTRL_IOS; + destination = (urb->pipe & PIPE_DEVEP_MASK) | usb_packetid(urb->pipe); + /* Figure out the starting frame number */ if (urb->transfer_flags & URB_ISO_ASAP) { - if (limits) { + if (list_empty(&qh->queue)) { uhci_get_current_frame_number(uhci); - urb->start_frame = (uhci->frame_number + 10) - & (UHCI_NUMFRAMES - 1); - } else - urb->start_frame = end; + urb->start_frame = (uhci->frame_number + 10); + + } else { /* Go right after the last one */ + struct urb *last_urb; + + last_urb = list_entry(qh->queue.prev, + struct urb_priv, node)->urb; + urb->start_frame = (last_urb->start_frame + + last_urb->number_of_packets * + last_urb->interval); + } } else { - urb->start_frame &= (UHCI_NUMFRAMES - 1); /* FIXME: Sanity check */ } - - return 0; -} - -/* - * Isochronous transfers - */ -static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb) -{ - struct uhci_td *td; - int i, ret, frame; - int status, destination; - struct urb_priv *urbp = (struct urb_priv *) urb->hcpriv; - - status = TD_CTRL_ACTIVE | TD_CTRL_IOS; - destination = (urb->pipe & PIPE_DEVEP_MASK) | usb_packetid(urb->pipe); - - ret = isochronous_find_start(uhci, urb); - if (ret) - return ret; + urb->start_frame &= (UHCI_NUMFRAMES - 1); for (i = 0; i < urb->number_of_packets; i++) { td = uhci_alloc_td(uhci); @@ -1092,20 +1012,25 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb) return -ENOMEM; uhci_add_td_to_urb(urb, td); - uhci_fill_td(td, status, destination | uhci_explen(urb->iso_frame_desc[i].length), - urb->transfer_dma + urb->iso_frame_desc[i].offset); - - if (i + 1 >= urb->number_of_packets) - td->status |= cpu_to_le32(TD_CTRL_IOC); + uhci_fill_td(td, status, destination | + uhci_explen(urb->iso_frame_desc[i].length), + urb->transfer_dma + + urb->iso_frame_desc[i].offset); } + /* Set the interrupt-on-completion flag on the last packet. */ + td->status |= __constant_cpu_to_le32(TD_CTRL_IOC); + + qh->skel = uhci->skel_iso_qh; + + /* Add the TDs to the frame list */ frame = urb->start_frame; list_for_each_entry(td, &urbp->td_list, list) { - uhci_insert_td_frame_list(uhci, td, frame); + uhci_insert_td_in_frame_list(uhci, td, frame); frame += urb->interval; } - return -EINPROGRESS; + return 0; } static int uhci_result_isochronous(struct uhci_hcd *uhci, struct urb *urb) @@ -1139,80 +1064,67 @@ static int uhci_result_isochronous(struct uhci_hcd *uhci, struct urb *urb) i++; } - unlink_isochronous_tds(uhci, urb); return ret; } -static struct urb *uhci_find_urb_ep(struct uhci_hcd *uhci, struct urb *urb) -{ - struct urb_priv *up; - - /* We don't match Isoc transfers since they are special */ - if (usb_pipeisoc(urb->pipe)) - return NULL; - - list_for_each_entry(up, &uhci->urb_list, urb_list) { - struct urb *u = up->urb; - - if (u->dev == urb->dev && u->status == -EINPROGRESS) { - /* For control, ignore the direction */ - if (usb_pipecontrol(urb->pipe) && - (u->pipe & ~USB_DIR_IN) == (urb->pipe & ~USB_DIR_IN)) - return u; - else if (u->pipe == urb->pipe) - return u; - } - } - - return NULL; -} - static int uhci_urb_enqueue(struct usb_hcd *hcd, - struct usb_host_endpoint *ep, + struct usb_host_endpoint *hep, struct urb *urb, gfp_t mem_flags) { int ret; struct uhci_hcd *uhci = hcd_to_uhci(hcd); unsigned long flags; - struct urb *eurb; + struct urb_priv *urbp; + struct uhci_qh *qh; int bustime; spin_lock_irqsave(&uhci->lock, flags); ret = urb->status; if (ret != -EINPROGRESS) /* URB already unlinked! */ - goto out; + goto done; - eurb = uhci_find_urb_ep(uhci, urb); + ret = -ENOMEM; + urbp = uhci_alloc_urb_priv(uhci, urb); + if (!urbp) + goto done; - if (!uhci_alloc_urb_priv(uhci, urb)) { - ret = -ENOMEM; - goto out; + if (hep->hcpriv) + qh = (struct uhci_qh *) hep->hcpriv; + else { + qh = uhci_alloc_qh(uhci, urb->dev, hep); + if (!qh) + goto err_no_qh; } + urbp->qh = qh; switch (usb_pipetype(urb->pipe)) { case PIPE_CONTROL: - ret = uhci_submit_control(uhci, urb, eurb); + ret = uhci_submit_control(uhci, urb, qh); + break; + case PIPE_BULK: + ret = uhci_submit_bulk(uhci, urb, qh); break; case PIPE_INTERRUPT: - if (!eurb) { + if (list_empty(&qh->queue)) { bustime = usb_check_bandwidth(urb->dev, urb); if (bustime < 0) ret = bustime; else { - ret = uhci_submit_interrupt(uhci, urb, eurb); - if (ret == -EINPROGRESS) + ret = uhci_submit_interrupt(uhci, urb, qh); + if (ret == 0) usb_claim_bandwidth(urb->dev, urb, bustime, 0); } } else { /* inherit from parent */ - urb->bandwidth = eurb->bandwidth; - ret = uhci_submit_interrupt(uhci, urb, eurb); + struct urb_priv *eurbp; + + eurbp = list_entry(qh->queue.prev, struct urb_priv, + node); + urb->bandwidth = eurbp->urb->bandwidth; + ret = uhci_submit_interrupt(uhci, urb, qh); } break; - case PIPE_BULK: - ret = uhci_submit_bulk(uhci, urb, eurb); - break; case PIPE_ISOCHRONOUS: bustime = usb_check_bandwidth(urb->dev, urb); if (bustime < 0) { @@ -1220,221 +1132,208 @@ static int uhci_urb_enqueue(struct usb_hcd *hcd, break; } - ret = uhci_submit_isochronous(uhci, urb); - if (ret == -EINPROGRESS) + ret = uhci_submit_isochronous(uhci, urb, qh); + if (ret == 0) usb_claim_bandwidth(urb->dev, urb, bustime, 1); break; } + if (ret != 0) + goto err_submit_failed; + + /* Add this URB to the QH */ + urbp->qh = qh; + list_add_tail(&urbp->node, &qh->queue); - if (ret != -EINPROGRESS) { - /* Submit failed, so delete it from the urb_list */ - struct urb_priv *urbp = urb->hcpriv; + /* If the new URB is the first and only one on this QH then either + * the QH is new and idle or else it's unlinked and waiting to + * become idle, so we can activate it right away. */ + if (qh->queue.next == &urbp->node) + uhci_activate_qh(uhci, qh); + goto done; - list_del_init(&urbp->urb_list); - uhci_destroy_urb_priv(uhci, urb); - } else - ret = 0; +err_submit_failed: + if (qh->state == QH_STATE_IDLE) + uhci_make_qh_idle(uhci, qh); /* Reclaim unused QH */ -out: +err_no_qh: + uhci_free_urb_priv(uhci, urbp); + +done: spin_unlock_irqrestore(&uhci->lock, flags); return ret; } -/* - * Return the result of a transfer - */ -static void uhci_transfer_result(struct uhci_hcd *uhci, struct urb *urb) +static int uhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) { - int ret = -EINPROGRESS; + struct uhci_hcd *uhci = hcd_to_uhci(hcd); + unsigned long flags; struct urb_priv *urbp; - spin_lock(&urb->lock); + spin_lock_irqsave(&uhci->lock, flags); + urbp = urb->hcpriv; + if (!urbp) /* URB was never linked! */ + goto done; + + /* Remove Isochronous TDs from the frame list ASAP */ + if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) + uhci_unlink_isochronous_tds(uhci, urb); + uhci_unlink_qh(uhci, urbp->qh); + +done: + spin_unlock_irqrestore(&uhci->lock, flags); + return 0; +} - urbp = (struct urb_priv *)urb->hcpriv; +/* + * Finish unlinking an URB and give it back + */ +static void uhci_giveback_urb(struct uhci_hcd *uhci, struct uhci_qh *qh, + struct urb *urb, struct pt_regs *regs) +__releases(uhci->lock) +__acquires(uhci->lock) +{ + struct urb_priv *urbp = (struct urb_priv *) urb->hcpriv; - if (urb->status != -EINPROGRESS) /* URB already dequeued */ - goto out; + /* Isochronous TDs get unlinked directly from the frame list */ + if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) + uhci_unlink_isochronous_tds(uhci, urb); + + /* If the URB isn't first on its queue, adjust the link pointer + * of the last TD in the previous URB. */ + else if (qh->queue.next != &urbp->node) { + struct urb_priv *purbp; + struct uhci_td *ptd, *ltd; + + purbp = list_entry(urbp->node.prev, struct urb_priv, node); + ptd = list_entry(purbp->td_list.prev, struct uhci_td, + list); + ltd = list_entry(urbp->td_list.prev, struct uhci_td, + list); + ptd->link = ltd->link; + } - switch (usb_pipetype(urb->pipe)) { - case PIPE_CONTROL: - ret = uhci_result_control(uhci, urb); - break; - case PIPE_BULK: - case PIPE_INTERRUPT: - ret = uhci_result_common(uhci, urb); - break; - case PIPE_ISOCHRONOUS: - ret = uhci_result_isochronous(uhci, urb); - break; + /* Take the URB off the QH's queue. If the queue is now empty, + * this is a perfect time for a toggle fixup. */ + list_del_init(&urbp->node); + if (list_empty(&qh->queue) && qh->needs_fixup) { + usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), + usb_pipeout(urb->pipe), qh->initial_toggle); + qh->needs_fixup = 0; } - if (ret == -EINPROGRESS) - goto out; - urb->status = ret; + uhci_dec_fsbr(uhci, urb); /* Safe since it checks */ + uhci_free_urb_priv(uhci, urbp); switch (usb_pipetype(urb->pipe)) { - case PIPE_CONTROL: - case PIPE_BULK: case PIPE_ISOCHRONOUS: /* Release bandwidth for Interrupt or Isoc. transfers */ if (urb->bandwidth) usb_release_bandwidth(urb->dev, urb, 1); - uhci_unlink_generic(uhci, urb); break; case PIPE_INTERRUPT: /* Release bandwidth for Interrupt or Isoc. transfers */ /* Make sure we don't release if we have a queued URB */ - if (list_empty(&urbp->queue_list) && urb->bandwidth) + if (list_empty(&qh->queue) && urb->bandwidth) usb_release_bandwidth(urb->dev, urb, 0); else /* bandwidth was passed on to queued URB, */ /* so don't let usb_unlink_urb() release it */ urb->bandwidth = 0; - uhci_unlink_generic(uhci, urb); break; - default: - dev_info(uhci_dev(uhci), "%s: unknown pipe type %d " - "for urb %p\n", - __FUNCTION__, usb_pipetype(urb->pipe), urb); } - /* Move it from uhci->urb_list to uhci->complete_list */ - uhci_moveto_complete(uhci, urbp); - -out: - spin_unlock(&urb->lock); -} - -static void uhci_unlink_generic(struct uhci_hcd *uhci, struct urb *urb) -{ - struct list_head *head; - struct uhci_td *td; - struct urb_priv *urbp = (struct urb_priv *)urb->hcpriv; - int prevactive = 0; - - uhci_dec_fsbr(uhci, urb); /* Safe since it checks */ + spin_unlock(&uhci->lock); + usb_hcd_giveback_urb(uhci_to_hcd(uhci), urb, regs); + spin_lock(&uhci->lock); - /* - * Now we need to find out what the last successful toggle was - * so we can update the local data toggle for the next transfer - * - * There are 2 ways the last successful completed TD is found: - * - * 1) The TD is NOT active and the actual length < expected length - * 2) The TD is NOT active and it's the last TD in the chain - * - * and a third way the first uncompleted TD is found: - * - * 3) The TD is active and the previous TD is NOT active - * - * Control and Isochronous ignore the toggle, so this is safe - * for all types - * - * FIXME: The toggle fixups won't be 100% reliable until we - * change over to using a single queue for each endpoint and - * stop the queue before unlinking. - */ - head = &urbp->td_list; - list_for_each_entry(td, head, list) { - unsigned int ctrlstat = td_status(td); + /* If the queue is now empty, we can unlink the QH and give up its + * reserved bandwidth. */ + if (list_empty(&qh->queue)) { + uhci_unlink_qh(uhci, qh); - if (!(ctrlstat & TD_CTRL_ACTIVE) && - (uhci_actual_length(ctrlstat) < - uhci_expected_length(td_token(td)) || - td->list.next == head)) - usb_settoggle(urb->dev, uhci_endpoint(td_token(td)), - uhci_packetout(td_token(td)), - uhci_toggle(td_token(td)) ^ 1); - else if ((ctrlstat & TD_CTRL_ACTIVE) && !prevactive) - usb_settoggle(urb->dev, uhci_endpoint(td_token(td)), - uhci_packetout(td_token(td)), - uhci_toggle(td_token(td))); - - prevactive = ctrlstat & TD_CTRL_ACTIVE; + /* Bandwidth stuff not yet implemented */ } - - uhci_delete_queued_urb(uhci, urb); - - /* The interrupt loop will reclaim the QHs */ - uhci_remove_qh(uhci, urbp->qh); - urbp->qh = NULL; } -static int uhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) +/* + * Scan the URBs in a QH's queue + */ +#define QH_FINISHED_UNLINKING(qh) \ + (qh->state == QH_STATE_UNLINKING && \ + uhci->frame_number + uhci->is_stopped != qh->unlink_frame) + +static void uhci_scan_qh(struct uhci_hcd *uhci, struct uhci_qh *qh, + struct pt_regs *regs) { - struct uhci_hcd *uhci = hcd_to_uhci(hcd); - unsigned long flags; struct urb_priv *urbp; + struct urb *urb; + int status; - spin_lock_irqsave(&uhci->lock, flags); - urbp = urb->hcpriv; - if (!urbp) /* URB was never linked! */ - goto done; - list_del_init(&urbp->urb_list); - - if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) - unlink_isochronous_tds(uhci, urb); - uhci_unlink_generic(uhci, urb); - - uhci_get_current_frame_number(uhci); - if (uhci->frame_number + uhci->is_stopped != uhci->urb_remove_age) { - uhci_remove_pending_urbps(uhci); - uhci->urb_remove_age = uhci->frame_number; - } - - /* If we're the first, set the next interrupt bit */ - if (list_empty(&uhci->urb_remove_list)) - uhci_set_next_interrupt(uhci); - list_add_tail(&urbp->urb_list, &uhci->urb_remove_list); - -done: - spin_unlock_irqrestore(&uhci->lock, flags); - return 0; -} + while (!list_empty(&qh->queue)) { + urbp = list_entry(qh->queue.next, struct urb_priv, node); + urb = urbp->urb; -static int uhci_fsbr_timeout(struct uhci_hcd *uhci, struct urb *urb) -{ - struct urb_priv *urbp = (struct urb_priv *)urb->hcpriv; - struct list_head *head; - struct uhci_td *td; - int count = 0; - - uhci_dec_fsbr(uhci, urb); + switch (usb_pipetype(urb->pipe)) { + case PIPE_CONTROL: + status = uhci_result_control(uhci, urb); + break; + case PIPE_ISOCHRONOUS: + status = uhci_result_isochronous(uhci, urb); + break; + default: /* PIPE_BULK or PIPE_INTERRUPT */ + status = uhci_result_common(uhci, urb); + break; + } + if (status == -EINPROGRESS) + break; - urbp->fsbr_timeout = 1; + spin_lock(&urb->lock); + if (urb->status == -EINPROGRESS) /* Not dequeued */ + urb->status = status; + else + status = -ECONNRESET; + spin_unlock(&urb->lock); - /* - * Ideally we would want to fix qh->element as well, but it's - * read/write by the HC, so that can introduce a race. It's not - * really worth the hassle - */ + /* Dequeued but completed URBs can't be given back unless + * the QH is stopped or has finished unlinking. */ + if (status == -ECONNRESET && + !(qh->is_stopped || QH_FINISHED_UNLINKING(qh))) + return; - head = &urbp->td_list; - list_for_each_entry(td, head, list) { - /* - * Make sure we don't do the last one (since it'll have the - * TERM bit set) as well as we skip every so many TDs to - * make sure it doesn't hog the bandwidth - */ - if (td->list.next != head && (count % DEPTH_INTERVAL) == - (DEPTH_INTERVAL - 1)) - td->link |= UHCI_PTR_DEPTH; - - count++; + uhci_giveback_urb(uhci, qh, urb, regs); + if (qh->is_stopped) + break; } - return 0; -} - -static void uhci_free_pending_qhs(struct uhci_hcd *uhci) -{ - struct uhci_qh *qh, *tmp; - - list_for_each_entry_safe(qh, tmp, &uhci->qh_remove_list, remove_list) { - list_del_init(&qh->remove_list); + /* If the QH is neither stopped nor finished unlinking (normal case), + * our work here is done. */ + restart: + if (!(qh->is_stopped || QH_FINISHED_UNLINKING(qh))) + return; - uhci_free_qh(uhci, qh); + /* Otherwise give back each of the dequeued URBs */ + list_for_each_entry(urbp, &qh->queue, node) { + urb = urbp->urb; + if (urb->status != -EINPROGRESS) { + uhci_save_toggle(qh, urb); + uhci_giveback_urb(uhci, qh, urb, regs); + goto restart; + } + } + qh->is_stopped = 0; + + /* There are no more dequeued URBs. If there are still URBs on the + * queue, the QH can now be re-activated. */ + if (!list_empty(&qh->queue)) { + if (qh->needs_fixup) + uhci_fixup_toggles(qh, 0); + uhci_activate_qh(uhci, qh); } + + /* The queue is empty. The QH can become idle if it is fully + * unlinked. */ + else if (QH_FINISHED_UNLINKING(qh)) + uhci_make_qh_idle(uhci, qh); } static void uhci_free_pending_tds(struct uhci_hcd *uhci) @@ -1448,43 +1347,13 @@ static void uhci_free_pending_tds(struct uhci_hcd *uhci) } } -static void -uhci_finish_urb(struct usb_hcd *hcd, struct urb *urb, struct pt_regs *regs) -__releases(uhci->lock) -__acquires(uhci->lock) -{ - struct uhci_hcd *uhci = hcd_to_uhci(hcd); - - uhci_destroy_urb_priv(uhci, urb); - - spin_unlock(&uhci->lock); - usb_hcd_giveback_urb(hcd, urb, regs); - spin_lock(&uhci->lock); -} - -static void uhci_finish_completion(struct uhci_hcd *uhci, struct pt_regs *regs) -{ - struct urb_priv *urbp, *tmp; - - list_for_each_entry_safe(urbp, tmp, &uhci->complete_list, urb_list) { - struct urb *urb = urbp->urb; - - list_del_init(&urbp->urb_list); - uhci_finish_urb(uhci_to_hcd(uhci), urb, regs); - } -} - -static void uhci_remove_pending_urbps(struct uhci_hcd *uhci) -{ - - /* Splice the urb_remove_list onto the end of the complete_list */ - list_splice_init(&uhci->urb_remove_list, uhci->complete_list.prev); -} - -/* Process events in the schedule, but only in one thread at a time */ +/* + * Process events in the schedule, but only in one thread at a time + */ static void uhci_scan_schedule(struct uhci_hcd *uhci, struct pt_regs *regs) { - struct urb_priv *urbp, *tmp; + int i; + struct uhci_qh *qh; /* Don't allow re-entrant calls */ if (uhci->scan_in_progress) { @@ -1498,60 +1367,39 @@ static void uhci_scan_schedule(struct uhci_hcd *uhci, struct pt_regs *regs) uhci_clear_next_interrupt(uhci); uhci_get_current_frame_number(uhci); - if (uhci->frame_number + uhci->is_stopped != uhci->qh_remove_age) - uhci_free_pending_qhs(uhci); if (uhci->frame_number + uhci->is_stopped != uhci->td_remove_age) uhci_free_pending_tds(uhci); - if (uhci->frame_number + uhci->is_stopped != uhci->urb_remove_age) - uhci_remove_pending_urbps(uhci); - - /* Walk the list of pending URBs to see which ones completed - * (must be _safe because uhci_transfer_result() dequeues URBs) */ - list_for_each_entry_safe(urbp, tmp, &uhci->urb_list, urb_list) { - struct urb *urb = urbp->urb; - /* Checks the status and does all of the magic necessary */ - uhci_transfer_result(uhci, urb); - } - uhci_finish_completion(uhci, regs); - - /* If the controller is stopped, we can finish these off right now */ - if (uhci->is_stopped) { - uhci_free_pending_qhs(uhci); - uhci_free_pending_tds(uhci); - uhci_remove_pending_urbps(uhci); + /* Go through all the QH queues and process the URBs in each one */ + for (i = 0; i < UHCI_NUM_SKELQH - 1; ++i) { + uhci->next_qh = list_entry(uhci->skelqh[i]->node.next, + struct uhci_qh, node); + while ((qh = uhci->next_qh) != uhci->skelqh[i]) { + uhci->next_qh = list_entry(qh->node.next, + struct uhci_qh, node); + uhci_scan_qh(uhci, qh, regs); + } } if (uhci->need_rescan) goto rescan; uhci->scan_in_progress = 0; - if (list_empty(&uhci->urb_remove_list) && - list_empty(&uhci->td_remove_list) && - list_empty(&uhci->qh_remove_list)) + /* If the controller is stopped, we can finish these off right now */ + if (uhci->is_stopped) + uhci_free_pending_tds(uhci); + + if (list_empty(&uhci->td_remove_list) && + list_empty(&uhci->skel_unlink_qh->node)) uhci_clear_next_interrupt(uhci); else uhci_set_next_interrupt(uhci); - - /* Wake up anyone waiting for an URB to complete */ - wake_up_all(&uhci->waitqh); } static void check_fsbr(struct uhci_hcd *uhci) { - struct urb_priv *up; - - list_for_each_entry(up, &uhci->urb_list, urb_list) { - struct urb *u = up->urb; - - spin_lock(&u->lock); - - /* Check if the FSBR timed out */ - if (up->fsbr && !up->fsbr_timeout && time_after_eq(jiffies, up->fsbrtime + IDLE_TIMEOUT)) - uhci_fsbr_timeout(uhci, u); - - spin_unlock(&u->lock); - } + /* For now, don't scan URBs for FSBR timeouts. + * Add it back in later... */ /* Really disable FSBR */ if (!uhci->fsbr && uhci->fsbrtimeout && time_after_eq(jiffies, uhci->fsbrtimeout)) { diff --git a/drivers/usb/image/mdc800.c b/drivers/usb/image/mdc800.c index 0498711..08daf40 100644 --- a/drivers/usb/image/mdc800.c +++ b/drivers/usb/image/mdc800.c @@ -96,6 +96,7 @@ #include <linux/module.h> #include <linux/smp_lock.h> #include <linux/wait.h> +#include <linux/mutex.h> #include <linux/usb.h> #include <linux/fs.h> @@ -169,7 +170,7 @@ struct mdc800_data int out_count; // Bytes in the buffer int open; // Camera device open ? - struct semaphore io_lock; // IO -lock + struct mutex io_lock; // IO -lock char in [8]; // Command Input Buffer int in_count; @@ -497,7 +498,7 @@ static int mdc800_usb_probe (struct usb_interface *intf, info ("Found Mustek MDC800 on USB."); - down (&mdc800->io_lock); + mutex_lock(&mdc800->io_lock); retval = usb_register_dev(intf, &mdc800_class); if (retval) { @@ -542,7 +543,7 @@ static int mdc800_usb_probe (struct usb_interface *intf, mdc800->state=READY; - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); usb_set_intfdata(intf, mdc800); return 0; @@ -620,7 +621,7 @@ static int mdc800_device_open (struct inode* inode, struct file *file) int retval=0; int errn=0; - down (&mdc800->io_lock); + mutex_lock(&mdc800->io_lock); if (mdc800->state == NOT_CONNECTED) { @@ -656,7 +657,7 @@ static int mdc800_device_open (struct inode* inode, struct file *file) dbg ("Mustek MDC800 device opened."); error_out: - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return errn; } @@ -669,7 +670,7 @@ static int mdc800_device_release (struct inode* inode, struct file *file) int retval=0; dbg ("Mustek MDC800 device closed."); - down (&mdc800->io_lock); + mutex_lock(&mdc800->io_lock); if (mdc800->open && (mdc800->state != NOT_CONNECTED)) { usb_kill_urb(mdc800->irq_urb); @@ -682,7 +683,7 @@ static int mdc800_device_release (struct inode* inode, struct file *file) retval=-EIO; } - up(&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return retval; } @@ -695,21 +696,21 @@ static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t l size_t left=len, sts=len; /* single transfer size */ char __user *ptr = buf; - down (&mdc800->io_lock); + mutex_lock(&mdc800->io_lock); if (mdc800->state == NOT_CONNECTED) { - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EBUSY; } if (mdc800->state == WORKING) { warn ("Illegal State \"working\" reached during read ?!"); - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EBUSY; } if (!mdc800->open) { - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EBUSY; } @@ -717,7 +718,7 @@ static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t l { if (signal_pending (current)) { - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EINTR; } @@ -736,7 +737,7 @@ static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t l if (usb_submit_urb (mdc800->download_urb, GFP_KERNEL)) { err ("Can't submit download urb (status=%i)",mdc800->download_urb->status); - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return len-left; } wait_event_timeout(mdc800->download_wait, mdc800->downloaded, @@ -745,14 +746,14 @@ static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t l if (mdc800->download_urb->status != 0) { err ("request download-bytes fails (status=%i)",mdc800->download_urb->status); - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return len-left; } } else { /* No more bytes -> that's an error*/ - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EIO; } } @@ -761,7 +762,7 @@ static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t l /* Copy Bytes */ if (copy_to_user(ptr, &mdc800->out [mdc800->out_ptr], sts)) { - up(&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EFAULT; } ptr+=sts; @@ -770,7 +771,7 @@ static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t l } } - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return len-left; } @@ -785,15 +786,15 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s { size_t i=0; - down (&mdc800->io_lock); + mutex_lock(&mdc800->io_lock); if (mdc800->state != READY) { - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EBUSY; } if (!mdc800->open ) { - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EBUSY; } @@ -802,13 +803,13 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s unsigned char c; if (signal_pending (current)) { - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EINTR; } if(get_user(c, buf+i)) { - up(&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EFAULT; } @@ -829,7 +830,7 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s } else { - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EIO; } @@ -841,7 +842,7 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s if (mdc800_usb_waitForIRQ (0,TO_GET_READY)) { err ("Camera didn't get ready.\n"); - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EIO; } @@ -853,7 +854,7 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s if (usb_submit_urb (mdc800->write_urb, GFP_KERNEL)) { err ("submitting write urb fails (status=%i)", mdc800->write_urb->status); - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EIO; } wait_event_timeout(mdc800->write_wait, mdc800->written, TO_WRITE_GET_READY*HZ/1000); @@ -861,7 +862,7 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s if (mdc800->state == WORKING) { usb_kill_urb(mdc800->write_urb); - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EIO; } @@ -873,7 +874,7 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s { err ("call 0x07 before 0x05,0x3e"); mdc800->state=READY; - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EIO; } mdc800->pic_len=-1; @@ -892,7 +893,7 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s if (mdc800_usb_waitForIRQ (1,TO_READ_FROM_IRQ)) { err ("requesting answer from irq fails"); - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EIO; } @@ -920,7 +921,7 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s if (mdc800_usb_waitForIRQ (0,TO_DEFAULT_COMMAND)) { err ("Command Timeout."); - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return -EIO; } } @@ -930,7 +931,7 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s } i++; } - up (&mdc800->io_lock); + mutex_unlock(&mdc800->io_lock); return i; } @@ -978,15 +979,13 @@ static int __init usb_mdc800_init (void) { int retval = -ENODEV; /* Allocate Memory */ - mdc800=kmalloc (sizeof (struct mdc800_data), GFP_KERNEL); + mdc800=kzalloc (sizeof (struct mdc800_data), GFP_KERNEL); if (!mdc800) goto cleanup_on_fail; - memset(mdc800, 0, sizeof(struct mdc800_data)); mdc800->dev = NULL; - mdc800->open=0; mdc800->state=NOT_CONNECTED; - init_MUTEX (&mdc800->io_lock); + mutex_init (&mdc800->io_lock); init_waitqueue_head (&mdc800->irq_wait); init_waitqueue_head (&mdc800->write_wait); diff --git a/drivers/usb/input/ati_remote.c b/drivers/usb/input/ati_remote.c index f7bdc50..99f986c 100644 --- a/drivers/usb/input/ati_remote.c +++ b/drivers/usb/input/ati_remote.c @@ -159,8 +159,6 @@ static const char accel[] = { 1, 2, 4, 6, 9, 13, 20 }; */ #define FILTER_TIME (HZ / 20) -static DECLARE_MUTEX(disconnect_sem); - struct ati_remote { struct input_dev *idev; struct usb_device *udev; diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c index 07a012f..58b59f6 100644 --- a/drivers/usb/input/hid-core.c +++ b/drivers/usb/input/hid-core.c @@ -66,9 +66,8 @@ static struct hid_report *hid_register_report(struct hid_device *device, unsigne if (report_enum->report_id_hash[id]) return report_enum->report_id_hash[id]; - if (!(report = kmalloc(sizeof(struct hid_report), GFP_KERNEL))) + if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL))) return NULL; - memset(report, 0, sizeof(struct hid_report)); if (id != 0) report_enum->numbered = 1; @@ -97,12 +96,9 @@ static struct hid_field *hid_register_field(struct hid_report *report, unsigned return NULL; } - if (!(field = kmalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage) + if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage) + values * sizeof(unsigned), GFP_KERNEL))) return NULL; - memset(field, 0, sizeof(struct hid_field) + usages * sizeof(struct hid_usage) - + values * sizeof(unsigned)); - field->index = report->maxfield++; report->field[field->index] = field; field->usage = (struct hid_usage *)(field + 1); @@ -651,17 +647,14 @@ static struct hid_device *hid_parse_report(__u8 *start, unsigned size) hid_parser_reserved }; - if (!(device = kmalloc(sizeof(struct hid_device), GFP_KERNEL))) + if (!(device = kzalloc(sizeof(struct hid_device), GFP_KERNEL))) return NULL; - memset(device, 0, sizeof(struct hid_device)); - if (!(device->collection = kmalloc(sizeof(struct hid_collection) * + if (!(device->collection = kzalloc(sizeof(struct hid_collection) * HID_DEFAULT_NUM_COLLECTIONS, GFP_KERNEL))) { kfree(device); return NULL; } - memset(device->collection, 0, sizeof(struct hid_collection) * - HID_DEFAULT_NUM_COLLECTIONS); device->collection_size = HID_DEFAULT_NUM_COLLECTIONS; for (i = 0; i < HID_REPORT_TYPES; i++) @@ -675,13 +668,12 @@ static struct hid_device *hid_parse_report(__u8 *start, unsigned size) memcpy(device->rdesc, start, size); device->rsize = size; - if (!(parser = kmalloc(sizeof(struct hid_parser), GFP_KERNEL))) { + if (!(parser = kzalloc(sizeof(struct hid_parser), GFP_KERNEL))) { kfree(device->rdesc); kfree(device->collection); kfree(device); return NULL; } - memset(parser, 0, sizeof(struct hid_parser)); parser->device = device; end = start + size; @@ -911,6 +903,99 @@ static int hid_input_report(int type, struct urb *urb, int interrupt, struct pt_ } /* + * Input submission and I/O error handler. + */ + +static void hid_io_error(struct hid_device *hid); + +/* Start up the input URB */ +static int hid_start_in(struct hid_device *hid) +{ + unsigned long flags; + int rc = 0; + + spin_lock_irqsave(&hid->inlock, flags); + if (hid->open > 0 && !test_bit(HID_SUSPENDED, &hid->iofl) && + !test_and_set_bit(HID_IN_RUNNING, &hid->iofl)) { + rc = usb_submit_urb(hid->urbin, GFP_ATOMIC); + if (rc != 0) + clear_bit(HID_IN_RUNNING, &hid->iofl); + } + spin_unlock_irqrestore(&hid->inlock, flags); + return rc; +} + +/* I/O retry timer routine */ +static void hid_retry_timeout(unsigned long _hid) +{ + struct hid_device *hid = (struct hid_device *) _hid; + + dev_dbg(&hid->intf->dev, "retrying intr urb\n"); + if (hid_start_in(hid)) + hid_io_error(hid); +} + +/* Workqueue routine to reset the device */ +static void hid_reset(void *_hid) +{ + struct hid_device *hid = (struct hid_device *) _hid; + int rc_lock, rc; + + dev_dbg(&hid->intf->dev, "resetting device\n"); + rc = rc_lock = usb_lock_device_for_reset(hid->dev, hid->intf); + if (rc_lock >= 0) { + rc = usb_reset_device(hid->dev); + if (rc_lock) + usb_unlock_device(hid->dev); + } + clear_bit(HID_RESET_PENDING, &hid->iofl); + + if (rc == 0) { + hid->retry_delay = 0; + if (hid_start_in(hid)) + hid_io_error(hid); + } else if (!(rc == -ENODEV || rc == -EHOSTUNREACH || rc == -EINTR)) + err("can't reset device, %s-%s/input%d, status %d", + hid->dev->bus->bus_name, + hid->dev->devpath, + hid->ifnum, rc); +} + +/* Main I/O error handler */ +static void hid_io_error(struct hid_device *hid) +{ + unsigned long flags; + + spin_lock_irqsave(&hid->inlock, flags); + + /* Stop when disconnected */ + if (usb_get_intfdata(hid->intf) == NULL) + goto done; + + /* When an error occurs, retry at increasing intervals */ + if (hid->retry_delay == 0) { + hid->retry_delay = 13; /* Then 26, 52, 104, 104, ... */ + hid->stop_retry = jiffies + msecs_to_jiffies(1000); + } else if (hid->retry_delay < 100) + hid->retry_delay *= 2; + + if (time_after(jiffies, hid->stop_retry)) { + + /* Retries failed, so do a port reset */ + if (!test_and_set_bit(HID_RESET_PENDING, &hid->iofl)) { + if (schedule_work(&hid->reset_work)) + goto done; + clear_bit(HID_RESET_PENDING, &hid->iofl); + } + } + + mod_timer(&hid->io_retry, + jiffies + msecs_to_jiffies(hid->retry_delay)); +done: + spin_unlock_irqrestore(&hid->inlock, flags); +} + +/* * Input interrupt completion handler. */ @@ -921,25 +1006,35 @@ static void hid_irq_in(struct urb *urb, struct pt_regs *regs) switch (urb->status) { case 0: /* success */ + hid->retry_delay = 0; hid_input_report(HID_INPUT_REPORT, urb, 1, regs); break; case -ECONNRESET: /* unlink */ case -ENOENT: - case -EPERM: case -ESHUTDOWN: /* unplug */ - case -EILSEQ: /* unplug timeout on uhci */ + clear_bit(HID_IN_RUNNING, &hid->iofl); return; + case -EILSEQ: /* protocol error or unplug */ + case -EPROTO: /* protocol error or unplug */ case -ETIMEDOUT: /* NAK */ - break; + clear_bit(HID_IN_RUNNING, &hid->iofl); + hid_io_error(hid); + return; default: /* error */ warn("input irq status %d received", urb->status); } status = usb_submit_urb(urb, SLAB_ATOMIC); - if (status) - err("can't resubmit intr, %s-%s/input%d, status %d", - hid->dev->bus->bus_name, hid->dev->devpath, - hid->ifnum, status); + if (status) { + clear_bit(HID_IN_RUNNING, &hid->iofl); + if (status != -EPERM) { + err("can't resubmit intr, %s-%s/input%d, status %d", + hid->dev->bus->bus_name, + hid->dev->devpath, + hid->ifnum, status); + hid_io_error(hid); + } + } } /* @@ -1101,8 +1196,9 @@ static void hid_irq_out(struct urb *urb, struct pt_regs *regs) case 0: /* success */ break; case -ESHUTDOWN: /* unplug */ - case -EILSEQ: /* unplug timeout on uhci */ unplug = 1; + case -EILSEQ: /* protocol error or unplug */ + case -EPROTO: /* protocol error or unplug */ case -ECONNRESET: /* unlink */ case -ENOENT: break; @@ -1149,8 +1245,9 @@ static void hid_ctrl(struct urb *urb, struct pt_regs *regs) hid_input_report(hid->ctrl[hid->ctrltail].report->type, urb, 0, regs); break; case -ESHUTDOWN: /* unplug */ - case -EILSEQ: /* unplug timectrl on uhci */ unplug = 1; + case -EILSEQ: /* protocol error or unplug */ + case -EPROTO: /* protocol error or unplug */ case -ECONNRESET: /* unlink */ case -ENOENT: case -EPIPE: /* report not available */ @@ -1263,14 +1360,9 @@ static int hid_get_class_descriptor(struct usb_device *dev, int ifnum, int hid_open(struct hid_device *hid) { - if (hid->open++) - return 0; - - hid->urbin->dev = hid->dev; - - if (usb_submit_urb(hid->urbin, GFP_KERNEL)) - return -EIO; - + ++hid->open; + if (hid_start_in(hid)) + hid_io_error(hid); return 0; } @@ -1460,6 +1552,9 @@ void hid_init_reports(struct hid_device *hid) #define USB_VENDOR_ID_HP 0x03f0 #define USB_DEVICE_ID_HP_USBHUB_KB 0x020c +#define USB_VENDOR_ID_CREATIVELABS 0x062a +#define USB_DEVICE_ID_CREATIVELABS_SILVERCREST 0x0201 + /* * Alphabetically sorted blacklist by quirk type. */ @@ -1576,6 +1671,7 @@ static const struct hid_blacklist { { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET }, { USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_KEYBOARD, HID_QUIRK_NOGET}, { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_USBHUB_KB, HID_QUIRK_NOGET}, + { USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_CREATIVELABS_SILVERCREST, HID_QUIRK_NOGET }, { USB_VENDOR_ID_HP, USB_DEVICE_ID_HP_USBHUB_KB, HID_QUIRK_NOGET }, { USB_VENDOR_ID_TANGTOP, USB_DEVICE_ID_TANGTOP_USBPS2, HID_QUIRK_NOGET }, { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT }, @@ -1795,6 +1891,10 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf) init_waitqueue_head(&hid->wait); + INIT_WORK(&hid->reset_work, hid_reset, hid); + setup_timer(&hid->io_retry, hid_retry_timeout, (unsigned long) hid); + + spin_lock_init(&hid->inlock); spin_lock_init(&hid->outlock); spin_lock_init(&hid->ctrllock); @@ -1863,11 +1963,16 @@ static void hid_disconnect(struct usb_interface *intf) if (!hid) return; + spin_lock_irq(&hid->inlock); /* Sync with error handler */ usb_set_intfdata(intf, NULL); + spin_unlock_irq(&hid->inlock); usb_kill_urb(hid->urbin); usb_kill_urb(hid->urbout); usb_kill_urb(hid->urbctrl); + del_timer_sync(&hid->io_retry); + flush_scheduled_work(); + if (hid->claimed & HID_CLAIMED_INPUT) hidinput_disconnect(hid); if (hid->claimed & HID_CLAIMED_HIDDEV) @@ -1942,6 +2047,10 @@ static int hid_suspend(struct usb_interface *intf, pm_message_t message) { struct hid_device *hid = usb_get_intfdata (intf); + spin_lock_irq(&hid->inlock); /* Sync with error handler */ + set_bit(HID_SUSPENDED, &hid->iofl); + spin_unlock_irq(&hid->inlock); + del_timer(&hid->io_retry); usb_kill_urb(hid->urbin); dev_dbg(&intf->dev, "suspend\n"); return 0; @@ -1952,10 +2061,8 @@ static int hid_resume(struct usb_interface *intf) struct hid_device *hid = usb_get_intfdata (intf); int status; - if (hid->open) - status = usb_submit_urb(hid->urbin, GFP_NOIO); - else - status = 0; + clear_bit(HID_SUSPENDED, &hid->iofl); + status = hid_start_in(hid); dev_dbg(&intf->dev, "resume status %d\n", status); return status; } diff --git a/drivers/usb/input/hid-lgff.c b/drivers/usb/input/hid-lgff.c index f82c9c9..f07d443 100644 --- a/drivers/usb/input/hid-lgff.c +++ b/drivers/usb/input/hid-lgff.c @@ -154,10 +154,9 @@ int hid_lgff_init(struct hid_device* hid) return -1; } - private = kmalloc(sizeof(struct lgff_device), GFP_KERNEL); + private = kzalloc(sizeof(struct lgff_device), GFP_KERNEL); if (!private) return -1; - memset(private, 0, sizeof(struct lgff_device)); hid->ff_private = private; /* Input init */ @@ -228,13 +227,12 @@ static struct hid_report* hid_lgff_duplicate_report(struct hid_report* report) } *ret->field[0] = *report->field[0]; - ret->field[0]->value = kmalloc(sizeof(s32[8]), GFP_KERNEL); + ret->field[0]->value = kzalloc(sizeof(s32[8]), GFP_KERNEL); if (!ret->field[0]->value) { kfree(ret->field[0]); kfree(ret); return NULL; } - memset(ret->field[0]->value, 0, sizeof(s32[8])); return ret; } diff --git a/drivers/usb/input/hid-tmff.c b/drivers/usb/input/hid-tmff.c index 023fd5a..534425c 100644 --- a/drivers/usb/input/hid-tmff.c +++ b/drivers/usb/input/hid-tmff.c @@ -113,11 +113,10 @@ int hid_tmff_init(struct hid_device *hid) struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); struct input_dev *input_dev = hidinput->input; - private = kmalloc(sizeof(struct tmff_device), GFP_KERNEL); + private = kzalloc(sizeof(struct tmff_device), GFP_KERNEL); if (!private) return -ENOMEM; - memset(private, 0, sizeof(struct tmff_device)); hid->ff_private = private; /* Find the report to use */ diff --git a/drivers/usb/input/hid.h b/drivers/usb/input/hid.h index 8b0d434..4e1b784 100644 --- a/drivers/usb/input/hid.h +++ b/drivers/usb/input/hid.h @@ -31,6 +31,8 @@ #include <linux/types.h> #include <linux/slab.h> #include <linux/list.h> +#include <linux/timer.h> +#include <linux/workqueue.h> /* * USB HID (Human Interface Device) interface class code @@ -370,6 +372,9 @@ struct hid_control_fifo { #define HID_CTRL_RUNNING 1 #define HID_OUT_RUNNING 2 +#define HID_IN_RUNNING 3 +#define HID_RESET_PENDING 4 +#define HID_SUSPENDED 5 struct hid_input { struct list_head list; @@ -393,12 +398,17 @@ struct hid_device { /* device report descriptor */ int ifnum; /* USB interface number */ unsigned long iofl; /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */ + struct timer_list io_retry; /* Retry timer */ + unsigned long stop_retry; /* Time to give up, in jiffies */ + unsigned int retry_delay; /* Delay length in ms */ + struct work_struct reset_work; /* Task context for resets */ unsigned int bufsize; /* URB buffer size */ struct urb *urbin; /* Input URB */ char *inbuf; /* Input buffer */ dma_addr_t inbuf_dma; /* Input buffer dma */ + spinlock_t inlock; /* Input fifo spinlock */ struct urb *urbctrl; /* Control URB */ struct usb_ctrlrequest *cr; /* Control request struct */ diff --git a/drivers/usb/input/hiddev.c b/drivers/usb/input/hiddev.c index 925f5ab..6dd6666 100644 --- a/drivers/usb/input/hiddev.c +++ b/drivers/usb/input/hiddev.c @@ -257,9 +257,8 @@ static int hiddev_open(struct inode * inode, struct file * file) { if (i >= HIDDEV_MINORS || !hiddev_table[i]) return -ENODEV; - if (!(list = kmalloc(sizeof(struct hiddev_list), GFP_KERNEL))) + if (!(list = kzalloc(sizeof(struct hiddev_list), GFP_KERNEL))) return -ENOMEM; - memset(list, 0, sizeof(struct hiddev_list)); list->hiddev = hiddev_table[i]; list->next = hiddev_table[i]->list; @@ -754,9 +753,8 @@ int hiddev_connect(struct hid_device *hid) if (i == hid->maxcollection && (hid->quirks & HID_QUIRK_HIDDEV) == 0) return -1; - if (!(hiddev = kmalloc(sizeof(struct hiddev), GFP_KERNEL))) + if (!(hiddev = kzalloc(sizeof(struct hiddev), GFP_KERNEL))) return -1; - memset(hiddev, 0, sizeof(struct hiddev)); retval = usb_register_dev(hid->intf, &hiddev_class); if (retval) { diff --git a/drivers/usb/media/Kconfig b/drivers/usb/media/Kconfig index 0d3d2cc..189d40f 100644 --- a/drivers/usb/media/Kconfig +++ b/drivers/usb/media/Kconfig @@ -191,6 +191,21 @@ config USB_W9968CF To compile this driver as a module, choose M here: the module will be called w9968cf. +config USB_ZC0301 + tristate "USB ZC0301 Image Processor and Control Chip support" + depends on USB && VIDEO_DEV + ---help--- + Say Y here if you want support for cameras based on the ZC0301 + Image Processor and Control Chip. + + See <file:Documentation/usb/zc0301.txt> for more informations. + + This driver uses the Video For Linux API. You must say Y or M to + "Video For Linux" to use this driver. + + To compile this driver as a module, choose M here: the + module will be called zc0301. + config USB_PWC tristate "USB Philips Cameras" depends on USB && VIDEO_DEV diff --git a/drivers/usb/media/Makefile b/drivers/usb/media/Makefile index 3957aa1..50e89a3 100644 --- a/drivers/usb/media/Makefile +++ b/drivers/usb/media/Makefile @@ -2,8 +2,12 @@ # Makefile for USB Media drivers # -sn9c102-objs := sn9c102_core.o sn9c102_hv7131d.o sn9c102_mi0343.o sn9c102_ov7630.o sn9c102_pas106b.o sn9c102_pas202bcb.o sn9c102_tas5110c1b.o sn9c102_tas5130d1b.o +sn9c102-objs := sn9c102_core.o sn9c102_hv7131d.o sn9c102_mi0343.o \ + sn9c102_ov7630.o sn9c102_pas106b.o sn9c102_pas202bca.o \ + sn9c102_pas202bcb.o sn9c102_tas5110c1b.o \ + sn9c102_tas5130d1b.o et61x251-objs := et61x251_core.o et61x251_tas5130d1b.o +zc0301-objs := zc0301_core.o zc0301_pas202bcb.o obj-$(CONFIG_USB_DABUSB) += dabusb.o obj-$(CONFIG_USB_DSBR) += dsbr100.o @@ -16,4 +20,5 @@ obj-$(CONFIG_USB_SN9C102) += sn9c102.o obj-$(CONFIG_USB_STV680) += stv680.o obj-$(CONFIG_USB_VICAM) += vicam.o usbvideo.o obj-$(CONFIG_USB_W9968CF) += w9968cf.o +obj-$(CONFIG_USB_ZC0301) += zc0301.o obj-$(CONFIG_USB_PWC) += pwc/ diff --git a/drivers/usb/media/dabusb.c b/drivers/usb/media/dabusb.c index 18d8eaf..1774ab7 100644 --- a/drivers/usb/media/dabusb.c +++ b/drivers/usb/media/dabusb.c @@ -38,6 +38,7 @@ #include <linux/delay.h> #include <linux/usb.h> #include <linux/smp_lock.h> +#include <linux/mutex.h> #include "dabusb.h" #include "dabfirmware.h" @@ -217,12 +218,11 @@ static int dabusb_alloc_buffers (pdabusb_t s) pipesize, packets, transfer_buffer_length); while (buffers < (s->total_buffer_size << 10)) { - b = (pbuff_t) kmalloc (sizeof (buff_t), GFP_KERNEL); + b = (pbuff_t) kzalloc (sizeof (buff_t), GFP_KERNEL); if (!b) { - err("kmalloc(sizeof(buff_t))==NULL"); + err("kzalloc(sizeof(buff_t))==NULL"); goto err; } - memset (b, 0, sizeof (buff_t)); b->s = s; b->purb = usb_alloc_urb(packets, GFP_KERNEL); if (!b->purb) { @@ -571,7 +571,7 @@ static ssize_t dabusb_read (struct file *file, char __user *buf, size_t count, l s->readptr = 0; } } - err: //up(&s->mutex); + err: //mutex_unlock(&s->mutex); return ret; } @@ -586,10 +586,10 @@ static int dabusb_open (struct inode *inode, struct file *file) s = &dabusb[devnum - DABUSB_MINOR]; dbg("dabusb_open"); - down (&s->mutex); + mutex_lock(&s->mutex); while (!s->usbdev || s->opened) { - up (&s->mutex); + mutex_unlock(&s->mutex); if (file->f_flags & O_NONBLOCK) { return -EBUSY; @@ -599,15 +599,15 @@ static int dabusb_open (struct inode *inode, struct file *file) if (signal_pending (current)) { return -EAGAIN; } - down (&s->mutex); + mutex_lock(&s->mutex); } if (usb_set_interface (s->usbdev, _DABUSB_IF, 1) < 0) { - up(&s->mutex); + mutex_unlock(&s->mutex); err("set_interface failed"); return -EINVAL; } s->opened = 1; - up (&s->mutex); + mutex_unlock(&s->mutex); file->f_pos = 0; file->private_data = s; @@ -621,10 +621,10 @@ static int dabusb_release (struct inode *inode, struct file *file) dbg("dabusb_release"); - down (&s->mutex); + mutex_lock(&s->mutex); dabusb_stop (s); dabusb_free_buffers (s); - up (&s->mutex); + mutex_unlock(&s->mutex); if (!s->remove_pending) { if (usb_set_interface (s->usbdev, _DABUSB_IF, 0) < 0) @@ -649,10 +649,10 @@ static int dabusb_ioctl (struct inode *inode, struct file *file, unsigned int cm if (s->remove_pending) return -EIO; - down (&s->mutex); + mutex_lock(&s->mutex); if (!s->usbdev) { - up (&s->mutex); + mutex_unlock(&s->mutex); return -EIO; } @@ -692,7 +692,7 @@ static int dabusb_ioctl (struct inode *inode, struct file *file, unsigned int cm ret = -ENOIOCTLCMD; break; } - up (&s->mutex); + mutex_unlock(&s->mutex); return ret; } @@ -738,7 +738,7 @@ static int dabusb_probe (struct usb_interface *intf, s = &dabusb[intf->minor]; - down (&s->mutex); + mutex_lock(&s->mutex); s->remove_pending = 0; s->usbdev = usbdev; s->devnum = intf->minor; @@ -761,7 +761,7 @@ static int dabusb_probe (struct usb_interface *intf, } dbg("bound to interface: %d", intf->altsetting->desc.bInterfaceNumber); usb_set_intfdata (intf, s); - up (&s->mutex); + mutex_unlock(&s->mutex); retval = usb_register_dev(intf, &dabusb_class); if (retval) { @@ -772,7 +772,7 @@ static int dabusb_probe (struct usb_interface *intf, return 0; reject: - up (&s->mutex); + mutex_unlock(&s->mutex); s->usbdev = NULL; return -ENODEV; } @@ -829,7 +829,7 @@ static int __init dabusb_init (void) for (u = 0; u < NRDABUSB; u++) { pdabusb_t s = &dabusb[u]; memset (s, 0, sizeof (dabusb_t)); - init_MUTEX (&s->mutex); + mutex_init (&s->mutex); s->usbdev = NULL; s->total_buffer_size = buffers; init_waitqueue_head (&s->wait); diff --git a/drivers/usb/media/dabusb.h b/drivers/usb/media/dabusb.h index 10b666e..96b03e4 100644 --- a/drivers/usb/media/dabusb.h +++ b/drivers/usb/media/dabusb.h @@ -18,7 +18,7 @@ typedef enum { _stopped=0, _started } driver_state_t; typedef struct { - struct semaphore mutex; + struct mutex mutex; struct usb_device *usbdev; wait_queue_head_t wait; wait_queue_head_t remove_ok; diff --git a/drivers/usb/media/et61x251.h b/drivers/usb/media/et61x251.h index 652238f..eee8afc 100644 --- a/drivers/usb/media/et61x251.h +++ b/drivers/usb/media/et61x251.h @@ -33,7 +33,9 @@ #include <linux/types.h> #include <linux/param.h> #include <linux/rwsem.h> -#include <asm/semaphore.h> +#include <linux/mutex.h> +#include <linux/stddef.h> +#include <linux/string.h> #include "et61x251_sensor.h" @@ -51,6 +53,7 @@ #define ET61X251_ALTERNATE_SETTING 13 #define ET61X251_URB_TIMEOUT msecs_to_jiffies(2 * ET61X251_ISO_PACKETS) #define ET61X251_CTRL_TIMEOUT 100 +#define ET61X251_FRAME_TIMEOUT 2 /*****************************************************************************/ @@ -127,15 +130,16 @@ struct et61x251_sysfs_attr { struct et61x251_module_param { u8 force_munmap; + u16 frame_timeout; }; -static DECLARE_MUTEX(et61x251_sysfs_lock); +static DEFINE_MUTEX(et61x251_sysfs_lock); static DECLARE_RWSEM(et61x251_disconnect); struct et61x251_device { struct video_device* v4ldev; - struct et61x251_sensor* sensor; + struct et61x251_sensor sensor; struct usb_device* usbdev; struct urb* urb[ET61X251_URBS]; @@ -157,19 +161,28 @@ struct et61x251_device { enum et61x251_dev_state state; u8 users; - struct semaphore dev_sem, fileop_sem; + struct mutex dev_mutex, fileop_mutex; spinlock_t queue_lock; wait_queue_head_t open, wait_frame, wait_stream; }; /*****************************************************************************/ +struct et61x251_device* +et61x251_match_id(struct et61x251_device* cam, const struct usb_device_id *id) +{ + if (usb_match_id(usb_ifnum_to_if(cam->usbdev, 0), id)) + return cam; + + return NULL; +} + + void et61x251_attach_sensor(struct et61x251_device* cam, struct et61x251_sensor* sensor) { - cam->sensor = sensor; - cam->sensor->usbdev = cam->usbdev; + memcpy(&cam->sensor, sensor, sizeof(struct et61x251_sensor)); } /*****************************************************************************/ @@ -212,7 +225,8 @@ do { \ #undef PDBG #define PDBG(fmt, args...) \ -dev_info(&cam->dev, "[%s:%d] " fmt "\n", __FUNCTION__, __LINE__ , ## args) +dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \ + __FUNCTION__, __LINE__ , ## args) #undef PDBGG #define PDBGG(fmt, args...) do {;} while(0) /* placeholder */ diff --git a/drivers/usb/media/et61x251_core.c b/drivers/usb/media/et61x251_core.c index 2c0171a..7cc01b8 100644 --- a/drivers/usb/media/et61x251_core.c +++ b/drivers/usb/media/et61x251_core.c @@ -25,11 +25,9 @@ #include <linux/moduleparam.h> #include <linux/errno.h> #include <linux/slab.h> -#include <linux/string.h> #include <linux/device.h> #include <linux/fs.h> #include <linux/delay.h> -#include <linux/stddef.h> #include <linux/compiler.h> #include <linux/ioctl.h> #include <linux/poll.h> @@ -50,8 +48,8 @@ #define ET61X251_MODULE_AUTHOR "(C) 2006 Luca Risolia" #define ET61X251_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>" #define ET61X251_MODULE_LICENSE "GPL" -#define ET61X251_MODULE_VERSION "1:1.01" -#define ET61X251_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 1) +#define ET61X251_MODULE_VERSION "1:1.02" +#define ET61X251_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 2) /*****************************************************************************/ @@ -90,6 +88,16 @@ MODULE_PARM_DESC(force_munmap, "\nDefault value is "__MODULE_STRING(SN9C102_FORCE_MUNMAP)"." "\n"); +static unsigned int frame_timeout[] = {[0 ... ET61X251_MAX_DEVICES-1] = + ET61X251_FRAME_TIMEOUT}; +module_param_array(frame_timeout, uint, NULL, 0644); +MODULE_PARM_DESC(frame_timeout, + "\n<n[,...]> Timeout for a video frame in seconds." + "\nThis parameter is specific for each detected camera." + "\nDefault value is " + __MODULE_STRING(ET61X251_FRAME_TIMEOUT)"." + "\n"); + #ifdef ET61X251_DEBUG static unsigned short debug = ET61X251_DEBUG_LEVEL; module_param(debug, ushort, 0644); @@ -111,8 +119,8 @@ static u32 et61x251_request_buffers(struct et61x251_device* cam, u32 count, enum et61x251_io_method io) { - struct v4l2_pix_format* p = &(cam->sensor->pix_format); - struct v4l2_rect* r = &(cam->sensor->cropcap.bounds); + struct v4l2_pix_format* p = &(cam->sensor.pix_format); + struct v4l2_rect* r = &(cam->sensor.cropcap.bounds); const size_t imagesize = cam->module_param.force_munmap || io == IO_READ ? (p->width * p->height * p->priv) / 8 : @@ -268,8 +276,8 @@ et61x251_i2c_try_read(struct et61x251_device* cam, int err = 0, res; data[0] = address; - data[1] = cam->sensor->i2c_slave_id; - data[2] = cam->sensor->rsta | 0x10; + data[1] = cam->sensor.i2c_slave_id; + data[2] = cam->sensor.rsta | 0x10; data[3] = !(et61x251_read_reg(cam, 0x8b) & 0x02); res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, 0x41, 0, 0x88, data, 4, ET61X251_CTRL_TIMEOUT); @@ -301,8 +309,8 @@ et61x251_i2c_try_write(struct et61x251_device* cam, int err = 0, res; data[0] = address; - data[1] = cam->sensor->i2c_slave_id; - data[2] = cam->sensor->rsta | 0x12; + data[1] = cam->sensor.i2c_slave_id; + data[2] = cam->sensor.rsta | 0x12; res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, 0x41, 0, 0x88, data, 3, ET61X251_CTRL_TIMEOUT); if (res < 0) @@ -334,9 +342,6 @@ et61x251_i2c_raw_write(struct et61x251_device* cam, u8 n, u8 data1, u8 data2, u8* data = cam->control_buffer; int err = 0, res; - if (!cam->sensor) - return -1; - data[0] = data2; data[1] = data3; data[2] = data4; @@ -350,8 +355,8 @@ et61x251_i2c_raw_write(struct et61x251_device* cam, u8 n, u8 data1, u8 data2, err += res; data[0] = address; - data[1] = cam->sensor->i2c_slave_id; - data[2] = cam->sensor->rsta | 0x02 | (n << 4); + data[1] = cam->sensor.i2c_slave_id; + data[2] = cam->sensor.rsta | 0x02 | (n << 4); res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, 0x41, 0, 0x88, data, 3, ET61X251_CTRL_TIMEOUT); if (res < 0) @@ -364,11 +369,11 @@ et61x251_i2c_raw_write(struct et61x251_device* cam, u8 n, u8 data1, u8 data2, if (res < 0) err += res; - err += et61x251_i2c_wait(cam, cam->sensor); + err += et61x251_i2c_wait(cam, &cam->sensor); if (err) DBG(3, "I2C raw write failed for %s image sensor", - cam->sensor->name); + cam->sensor.name); PDBGG("I2C raw write: %u bytes, address = 0x%02X, data1 = 0x%02X, " "data2 = 0x%02X, data3 = 0x%02X, data4 = 0x%02X, data5 = 0x%02X," @@ -382,19 +387,13 @@ et61x251_i2c_raw_write(struct et61x251_device* cam, u8 n, u8 data1, u8 data2, int et61x251_i2c_read(struct et61x251_device* cam, u8 address) { - if (!cam->sensor) - return -1; - - return et61x251_i2c_try_read(cam, cam->sensor, address); + return et61x251_i2c_try_read(cam, &cam->sensor, address); } int et61x251_i2c_write(struct et61x251_device* cam, u8 address, u8 value) { - if (!cam->sensor) - return -1; - - return et61x251_i2c_try_write(cam, cam->sensor, address, value); + return et61x251_i2c_try_write(cam, &cam->sensor, address, value); } /*****************************************************************************/ @@ -417,7 +416,7 @@ static void et61x251_urb_complete(struct urb *urb, struct pt_regs* regs) if ((*f)) (*f)->state = F_QUEUED; DBG(3, "Stream interrupted"); - wake_up_interruptible(&cam->wait_stream); + wake_up(&cam->wait_stream); } if (cam->state & DEV_DISCONNECTED) @@ -435,9 +434,9 @@ static void et61x251_urb_complete(struct urb *urb, struct pt_regs* regs) (*f) = list_entry(cam->inqueue.next, struct et61x251_frame_t, frame); - imagesize = (cam->sensor->pix_format.width * - cam->sensor->pix_format.height * - cam->sensor->pix_format.priv) / 8; + imagesize = (cam->sensor.pix_format.width * + cam->sensor.pix_format.height * + cam->sensor.pix_format.priv) / 8; for (i = 0; i < urb->number_of_packets; i++) { unsigned int len, status; @@ -476,7 +475,7 @@ start_of_frame: if ((*f)->state == F_GRABBING) { if (sof && (*f)->buf.bytesused) { - if (cam->sensor->pix_format.pixelformat == + if (cam->sensor.pix_format.pixelformat == V4L2_PIX_FMT_ET61X251) goto end_of_frame; else { @@ -521,7 +520,7 @@ end_of_frame: goto resubmit_urb; if (sof && - cam->sensor->pix_format.pixelformat == + cam->sensor.pix_format.pixelformat == V4L2_PIX_FMT_ET61X251) goto start_of_frame; } @@ -650,21 +649,21 @@ static int et61x251_stop_transfer(struct et61x251_device* cam) static int et61x251_stream_interrupt(struct et61x251_device* cam) { - int err = 0; + long timeout; cam->stream = STREAM_INTERRUPT; - err = wait_event_timeout(cam->wait_stream, - (cam->stream == STREAM_OFF) || - (cam->state & DEV_DISCONNECTED), - ET61X251_URB_TIMEOUT); + timeout = wait_event_timeout(cam->wait_stream, + (cam->stream == STREAM_OFF) || + (cam->state & DEV_DISCONNECTED), + ET61X251_URB_TIMEOUT); if (cam->state & DEV_DISCONNECTED) return -ENODEV; - else if (err) { + else if (cam->stream != STREAM_OFF) { cam->state |= DEV_MISCONFIGURED; DBG(1, "URB timeout reached. The camera is misconfigured. To " "use it, close and open /dev/video%d again.", cam->v4ldev->minor); - return err; + return -EIO; } return 0; @@ -709,18 +708,18 @@ static ssize_t et61x251_show_reg(struct class_device* cd, char* buf) struct et61x251_device* cam; ssize_t count; - if (down_interruptible(&et61x251_sysfs_lock)) + if (mutex_lock_interruptible(&et61x251_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -ENODEV; } count = sprintf(buf, "%u\n", cam->sysfs.reg); - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return count; } @@ -733,18 +732,18 @@ et61x251_store_reg(struct class_device* cd, const char* buf, size_t len) u8 index; ssize_t count; - if (down_interruptible(&et61x251_sysfs_lock)) + if (mutex_lock_interruptible(&et61x251_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -ENODEV; } index = et61x251_strtou8(buf, len, &count); if (index > 0x8e || !count) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -EINVAL; } @@ -753,7 +752,7 @@ et61x251_store_reg(struct class_device* cd, const char* buf, size_t len) DBG(2, "Moved ET61X[12]51 register index to 0x%02X", cam->sysfs.reg); DBG(3, "Written bytes: %zd", count); - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return count; } @@ -765,17 +764,17 @@ static ssize_t et61x251_show_val(struct class_device* cd, char* buf) ssize_t count; int val; - if (down_interruptible(&et61x251_sysfs_lock)) + if (mutex_lock_interruptible(&et61x251_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -ENODEV; } if ((val = et61x251_read_reg(cam, cam->sysfs.reg)) < 0) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -EIO; } @@ -783,7 +782,7 @@ static ssize_t et61x251_show_val(struct class_device* cd, char* buf) DBG(3, "Read bytes: %zd", count); - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return count; } @@ -797,24 +796,24 @@ et61x251_store_val(struct class_device* cd, const char* buf, size_t len) ssize_t count; int err; - if (down_interruptible(&et61x251_sysfs_lock)) + if (mutex_lock_interruptible(&et61x251_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -ENODEV; } value = et61x251_strtou8(buf, len, &count); if (!count) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -EINVAL; } err = et61x251_write_reg(cam, value, cam->sysfs.reg); if (err) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -EIO; } @@ -822,7 +821,7 @@ et61x251_store_val(struct class_device* cd, const char* buf, size_t len) cam->sysfs.reg, value); DBG(3, "Written bytes: %zd", count); - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return count; } @@ -833,12 +832,12 @@ static ssize_t et61x251_show_i2c_reg(struct class_device* cd, char* buf) struct et61x251_device* cam; ssize_t count; - if (down_interruptible(&et61x251_sysfs_lock)) + if (mutex_lock_interruptible(&et61x251_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -ENODEV; } @@ -846,7 +845,7 @@ static ssize_t et61x251_show_i2c_reg(struct class_device* cd, char* buf) DBG(3, "Read bytes: %zd", count); - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return count; } @@ -859,18 +858,18 @@ et61x251_store_i2c_reg(struct class_device* cd, const char* buf, size_t len) u8 index; ssize_t count; - if (down_interruptible(&et61x251_sysfs_lock)) + if (mutex_lock_interruptible(&et61x251_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -ENODEV; } index = et61x251_strtou8(buf, len, &count); if (!count) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -EINVAL; } @@ -879,7 +878,7 @@ et61x251_store_i2c_reg(struct class_device* cd, const char* buf, size_t len) DBG(2, "Moved sensor register index to 0x%02X", cam->sysfs.i2c_reg); DBG(3, "Written bytes: %zd", count); - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return count; } @@ -891,22 +890,22 @@ static ssize_t et61x251_show_i2c_val(struct class_device* cd, char* buf) ssize_t count; int val; - if (down_interruptible(&et61x251_sysfs_lock)) + if (mutex_lock_interruptible(&et61x251_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -ENODEV; } - if (!(cam->sensor->sysfs_ops & ET61X251_I2C_READ)) { - up(&et61x251_sysfs_lock); + if (!(cam->sensor.sysfs_ops & ET61X251_I2C_READ)) { + mutex_unlock(&et61x251_sysfs_lock); return -ENOSYS; } if ((val = et61x251_i2c_read(cam, cam->sysfs.i2c_reg)) < 0) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -EIO; } @@ -914,7 +913,7 @@ static ssize_t et61x251_show_i2c_val(struct class_device* cd, char* buf) DBG(3, "Read bytes: %zd", count); - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return count; } @@ -928,29 +927,29 @@ et61x251_store_i2c_val(struct class_device* cd, const char* buf, size_t len) ssize_t count; int err; - if (down_interruptible(&et61x251_sysfs_lock)) + if (mutex_lock_interruptible(&et61x251_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -ENODEV; } - if (!(cam->sensor->sysfs_ops & ET61X251_I2C_READ)) { - up(&et61x251_sysfs_lock); + if (!(cam->sensor.sysfs_ops & ET61X251_I2C_READ)) { + mutex_unlock(&et61x251_sysfs_lock); return -ENOSYS; } value = et61x251_strtou8(buf, len, &count); if (!count) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -EINVAL; } err = et61x251_i2c_write(cam, cam->sysfs.i2c_reg, value); if (err) { - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return -EIO; } @@ -958,7 +957,7 @@ et61x251_store_i2c_val(struct class_device* cd, const char* buf, size_t len) cam->sysfs.i2c_reg, value); DBG(3, "Written bytes: %zd", count); - up(&et61x251_sysfs_lock); + mutex_unlock(&et61x251_sysfs_lock); return count; } @@ -980,7 +979,7 @@ static void et61x251_create_sysfs(struct et61x251_device* cam) video_device_create_file(v4ldev, &class_device_attr_reg); video_device_create_file(v4ldev, &class_device_attr_val); - if (cam->sensor && cam->sensor->sysfs_ops) { + if (cam->sensor.sysfs_ops) { video_device_create_file(v4ldev, &class_device_attr_i2c_reg); video_device_create_file(v4ldev, &class_device_attr_i2c_val); } @@ -1048,7 +1047,7 @@ static int et61x251_set_scale(struct et61x251_device* cam, u8 scale) static int et61x251_set_crop(struct et61x251_device* cam, struct v4l2_rect* rect) { - struct et61x251_sensor* s = cam->sensor; + struct et61x251_sensor* s = &cam->sensor; u16 fmw_sx = (u16)(rect->left - s->cropcap.bounds.left + s->active_pixel.left), fmw_sy = (u16)(rect->top - s->cropcap.bounds.top + @@ -1076,7 +1075,7 @@ et61x251_set_crop(struct et61x251_device* cam, struct v4l2_rect* rect) static int et61x251_init(struct et61x251_device* cam) { - struct et61x251_sensor* s = cam->sensor; + struct et61x251_sensor* s = &cam->sensor; struct v4l2_control ctrl; struct v4l2_queryctrl *qctrl; struct v4l2_rect* rect; @@ -1143,7 +1142,7 @@ static int et61x251_init(struct et61x251_device* cam) } if (!(cam->state & DEV_INITIALIZED)) { - init_MUTEX(&cam->fileop_sem); + mutex_init(&cam->fileop_mutex); spin_lock_init(&cam->queue_lock); init_waitqueue_head(&cam->wait_frame); init_waitqueue_head(&cam->wait_stream); @@ -1161,13 +1160,15 @@ static int et61x251_init(struct et61x251_device* cam) static void et61x251_release_resources(struct et61x251_device* cam) { - down(&et61x251_sysfs_lock); + mutex_lock(&et61x251_sysfs_lock); DBG(2, "V4L2 device /dev/video%d deregistered", cam->v4ldev->minor); video_set_drvdata(cam->v4ldev, NULL); video_unregister_device(cam->v4ldev); - up(&et61x251_sysfs_lock); + usb_put_dev(cam->usbdev); + + mutex_unlock(&et61x251_sysfs_lock); kfree(cam->control_buffer); } @@ -1188,7 +1189,7 @@ static int et61x251_open(struct inode* inode, struct file* filp) cam = video_get_drvdata(video_devdata(filp)); - if (down_interruptible(&cam->dev_sem)) { + if (mutex_lock_interruptible(&cam->dev_mutex)) { up_read(&et61x251_disconnect); return -ERESTARTSYS; } @@ -1200,7 +1201,7 @@ static int et61x251_open(struct inode* inode, struct file* filp) err = -EWOULDBLOCK; goto out; } - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); err = wait_event_interruptible_exclusive(cam->open, cam->state & DEV_DISCONNECTED || !cam->users); @@ -1212,7 +1213,7 @@ static int et61x251_open(struct inode* inode, struct file* filp) up_read(&et61x251_disconnect); return -ENODEV; } - down(&cam->dev_sem); + mutex_lock(&cam->dev_mutex); } @@ -1240,7 +1241,7 @@ static int et61x251_open(struct inode* inode, struct file* filp) DBG(3, "Video device /dev/video%d is open", cam->v4ldev->minor); out: - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); up_read(&et61x251_disconnect); return err; } @@ -1250,7 +1251,7 @@ static int et61x251_release(struct inode* inode, struct file* filp) { struct et61x251_device* cam = video_get_drvdata(video_devdata(filp)); - down(&cam->dev_sem); /* prevent disconnect() to be called */ + mutex_lock(&cam->dev_mutex); /* prevent disconnect() to be called */ et61x251_stop_transfer(cam); @@ -1258,7 +1259,7 @@ static int et61x251_release(struct inode* inode, struct file* filp) if (cam->state & DEV_DISCONNECTED) { et61x251_release_resources(cam); - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); kfree(cam); return 0; } @@ -1268,7 +1269,7 @@ static int et61x251_release(struct inode* inode, struct file* filp) DBG(3, "Video device /dev/video%d closed", cam->v4ldev->minor); - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); return 0; } @@ -1281,28 +1282,29 @@ et61x251_read(struct file* filp, char __user * buf, struct et61x251_device* cam = video_get_drvdata(video_devdata(filp)); struct et61x251_frame_t* f, * i; unsigned long lock_flags; + long timeout; int err = 0; - if (down_interruptible(&cam->fileop_sem)) + if (mutex_lock_interruptible(&cam->fileop_mutex)) return -ERESTARTSYS; if (cam->state & DEV_DISCONNECTED) { DBG(1, "Device not present"); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -ENODEV; } if (cam->state & DEV_MISCONFIGURED) { DBG(1, "The camera is misconfigured. Close and open it " "again."); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EIO; } if (cam->io == IO_MMAP) { DBG(3, "Close and open the device again to choose the read " "method"); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EINVAL; } @@ -1310,7 +1312,7 @@ et61x251_read(struct file* filp, char __user * buf, if (!et61x251_request_buffers(cam, cam->nreadbuffers, IO_READ)) { DBG(1, "read() failed, not enough memory"); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -ENOMEM; } cam->io = IO_READ; @@ -1324,30 +1326,32 @@ et61x251_read(struct file* filp, char __user * buf, } if (!count) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return 0; } if (list_empty(&cam->outqueue)) { if (filp->f_flags & O_NONBLOCK) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EAGAIN; } - err = wait_event_interruptible - ( cam->wait_frame, - (!list_empty(&cam->outqueue)) || - (cam->state & DEV_DISCONNECTED) || - (cam->state & DEV_MISCONFIGURED) ); - if (err) { - up(&cam->fileop_sem); - return err; + timeout = wait_event_interruptible_timeout + ( cam->wait_frame, + (!list_empty(&cam->outqueue)) || + (cam->state & DEV_DISCONNECTED) || + (cam->state & DEV_MISCONFIGURED), + cam->module_param.frame_timeout * + 1000 * msecs_to_jiffies(1) ); + if (timeout < 0) { + mutex_unlock(&cam->fileop_mutex); + return timeout; } if (cam->state & DEV_DISCONNECTED) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -ENODEV; } - if (cam->state & DEV_MISCONFIGURED) { - up(&cam->fileop_sem); + if (!timeout || (cam->state & DEV_MISCONFIGURED)) { + mutex_unlock(&cam->fileop_mutex); return -EIO; } } @@ -1375,7 +1379,7 @@ exit: PDBGG("Frame #%lu, bytes read: %zu", (unsigned long)f->buf.index, count); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return err ? err : count; } @@ -1388,7 +1392,7 @@ static unsigned int et61x251_poll(struct file *filp, poll_table *wait) unsigned long lock_flags; unsigned int mask = 0; - if (down_interruptible(&cam->fileop_sem)) + if (mutex_lock_interruptible(&cam->fileop_mutex)) return POLLERR; if (cam->state & DEV_DISCONNECTED) { @@ -1426,12 +1430,12 @@ static unsigned int et61x251_poll(struct file *filp, poll_table *wait) if (!list_empty(&cam->outqueue)) mask |= POLLIN | POLLRDNORM; - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return mask; error: - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return POLLERR; } @@ -1465,25 +1469,25 @@ static int et61x251_mmap(struct file* filp, struct vm_area_struct *vma) void *pos; u32 i; - if (down_interruptible(&cam->fileop_sem)) + if (mutex_lock_interruptible(&cam->fileop_mutex)) return -ERESTARTSYS; if (cam->state & DEV_DISCONNECTED) { DBG(1, "Device not present"); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -ENODEV; } if (cam->state & DEV_MISCONFIGURED) { DBG(1, "The camera is misconfigured. Close and open it " "again."); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EIO; } if (cam->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) || size != PAGE_ALIGN(cam->frame[0].buf.length)) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EINVAL; } @@ -1492,7 +1496,7 @@ static int et61x251_mmap(struct file* filp, struct vm_area_struct *vma) break; } if (i == cam->nbuffers) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EINVAL; } @@ -1502,7 +1506,7 @@ static int et61x251_mmap(struct file* filp, struct vm_area_struct *vma) pos = cam->frame[i].bufmem; while (size > 0) { /* size is page-aligned */ if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EAGAIN; } start += PAGE_SIZE; @@ -1515,7 +1519,7 @@ static int et61x251_mmap(struct file* filp, struct vm_area_struct *vma) et61x251_vm_open(vma); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return 0; } @@ -1557,6 +1561,7 @@ et61x251_vidioc_enuminput(struct et61x251_device* cam, void __user * arg) memset(&i, 0, sizeof(i)); strcpy(i.name, "Camera"); + i.type = V4L2_INPUT_TYPE_CAMERA; if (copy_to_user(arg, &i, sizeof(i))) return -EFAULT; @@ -1566,7 +1571,19 @@ et61x251_vidioc_enuminput(struct et61x251_device* cam, void __user * arg) static int -et61x251_vidioc_gs_input(struct et61x251_device* cam, void __user * arg) +et61x251_vidioc_g_input(struct et61x251_device* cam, void __user * arg) +{ + int index = 0; + + if (copy_to_user(arg, &index, sizeof(index))) + return -EFAULT; + + return 0; +} + + +static int +et61x251_vidioc_s_input(struct et61x251_device* cam, void __user * arg) { int index; @@ -1583,7 +1600,7 @@ et61x251_vidioc_gs_input(struct et61x251_device* cam, void __user * arg) static int et61x251_vidioc_query_ctrl(struct et61x251_device* cam, void __user * arg) { - struct et61x251_sensor* s = cam->sensor; + struct et61x251_sensor* s = &cam->sensor; struct v4l2_queryctrl qc; u8 i; @@ -1605,7 +1622,7 @@ et61x251_vidioc_query_ctrl(struct et61x251_device* cam, void __user * arg) static int et61x251_vidioc_g_ctrl(struct et61x251_device* cam, void __user * arg) { - struct et61x251_sensor* s = cam->sensor; + struct et61x251_sensor* s = &cam->sensor; struct v4l2_control ctrl; int err = 0; u8 i; @@ -1637,7 +1654,7 @@ exit: static int et61x251_vidioc_s_ctrl(struct et61x251_device* cam, void __user * arg) { - struct et61x251_sensor* s = cam->sensor; + struct et61x251_sensor* s = &cam->sensor; struct v4l2_control ctrl; u8 i; int err = 0; @@ -1650,6 +1667,8 @@ et61x251_vidioc_s_ctrl(struct et61x251_device* cam, void __user * arg) for (i = 0; i < ARRAY_SIZE(s->qctrl); i++) if (ctrl.id == s->qctrl[i].id) { + if (s->qctrl[i].flags & V4L2_CTRL_FLAG_DISABLED) + return -EINVAL; if (ctrl.value < s->qctrl[i].minimum || ctrl.value > s->qctrl[i].maximum) return -ERANGE; @@ -1669,7 +1688,7 @@ et61x251_vidioc_s_ctrl(struct et61x251_device* cam, void __user * arg) static int et61x251_vidioc_cropcap(struct et61x251_device* cam, void __user * arg) { - struct v4l2_cropcap* cc = &(cam->sensor->cropcap); + struct v4l2_cropcap* cc = &(cam->sensor.cropcap); cc->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; cc->pixelaspect.numerator = 1; @@ -1685,7 +1704,7 @@ et61x251_vidioc_cropcap(struct et61x251_device* cam, void __user * arg) static int et61x251_vidioc_g_crop(struct et61x251_device* cam, void __user * arg) { - struct et61x251_sensor* s = cam->sensor; + struct et61x251_sensor* s = &cam->sensor; struct v4l2_crop crop = { .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, }; @@ -1702,7 +1721,7 @@ et61x251_vidioc_g_crop(struct et61x251_device* cam, void __user * arg) static int et61x251_vidioc_s_crop(struct et61x251_device* cam, void __user * arg) { - struct et61x251_sensor* s = cam->sensor; + struct et61x251_sensor* s = &cam->sensor; struct v4l2_crop crop; struct v4l2_rect* rect; struct v4l2_rect* bounds = &(s->cropcap.bounds); @@ -1843,7 +1862,7 @@ static int et61x251_vidioc_g_fmt(struct et61x251_device* cam, void __user * arg) { struct v4l2_format format; - struct v4l2_pix_format* pfmt = &(cam->sensor->pix_format); + struct v4l2_pix_format* pfmt = &(cam->sensor.pix_format); if (copy_from_user(&format, arg, sizeof(format))) return -EFAULT; @@ -1868,7 +1887,7 @@ static int et61x251_vidioc_try_s_fmt(struct et61x251_device* cam, unsigned int cmd, void __user * arg) { - struct et61x251_sensor* s = cam->sensor; + struct et61x251_sensor* s = &cam->sensor; struct v4l2_format format; struct v4l2_pix_format* pix; struct v4l2_pix_format* pfmt = &(s->pix_format); @@ -2155,7 +2174,7 @@ et61x251_vidioc_dqbuf(struct et61x251_device* cam, struct file* filp, struct v4l2_buffer b; struct et61x251_frame_t *f; unsigned long lock_flags; - int err = 0; + long timeout; if (copy_from_user(&b, arg, sizeof(b))) return -EFAULT; @@ -2168,16 +2187,18 @@ et61x251_vidioc_dqbuf(struct et61x251_device* cam, struct file* filp, return -EINVAL; if (filp->f_flags & O_NONBLOCK) return -EAGAIN; - err = wait_event_interruptible - ( cam->wait_frame, - (!list_empty(&cam->outqueue)) || - (cam->state & DEV_DISCONNECTED) || - (cam->state & DEV_MISCONFIGURED) ); - if (err) - return err; + timeout = wait_event_interruptible_timeout + ( cam->wait_frame, + (!list_empty(&cam->outqueue)) || + (cam->state & DEV_DISCONNECTED) || + (cam->state & DEV_MISCONFIGURED), + cam->module_param.frame_timeout * + 1000 * msecs_to_jiffies(1) ); + if (timeout < 0) + return timeout; if (cam->state & DEV_DISCONNECTED) return -ENODEV; - if (cam->state & DEV_MISCONFIGURED) + if (!timeout || (cam->state & DEV_MISCONFIGURED)) return -EIO; } @@ -2309,8 +2330,10 @@ static int et61x251_ioctl_v4l2(struct inode* inode, struct file* filp, return et61x251_vidioc_enuminput(cam, arg); case VIDIOC_G_INPUT: + return et61x251_vidioc_g_input(cam, arg); + case VIDIOC_S_INPUT: - return et61x251_vidioc_gs_input(cam, arg); + return et61x251_vidioc_s_input(cam, arg); case VIDIOC_QUERYCTRL: return et61x251_vidioc_query_ctrl(cam, arg); @@ -2393,19 +2416,19 @@ static int et61x251_ioctl(struct inode* inode, struct file* filp, struct et61x251_device* cam = video_get_drvdata(video_devdata(filp)); int err = 0; - if (down_interruptible(&cam->fileop_sem)) + if (mutex_lock_interruptible(&cam->fileop_mutex)) return -ERESTARTSYS; if (cam->state & DEV_DISCONNECTED) { DBG(1, "Device not present"); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -ENODEV; } if (cam->state & DEV_MISCONFIGURED) { DBG(1, "The camera is misconfigured. Close and open it " "again."); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EIO; } @@ -2413,7 +2436,7 @@ static int et61x251_ioctl(struct inode* inode, struct file* filp, err = et61x251_ioctl_v4l2(inode, filp, cmd, (void __user *)arg); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return err; } @@ -2459,7 +2482,7 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) goto fail; } - init_MUTEX(&cam->dev_sem); + mutex_init(&cam->dev_mutex); DBG(2, "ET61X[12]51 PC Camera Controller detected " "(vid/pid 0x%04X/0x%04X)",id->idVendor, id->idProduct); @@ -2470,8 +2493,8 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) break; } - if (!err && cam->sensor) - DBG(2, "%s image sensor detected", cam->sensor->name); + if (!err) + DBG(2, "%s image sensor detected", cam->sensor.name); else { DBG(1, "No supported image sensor detected"); err = -ENODEV; @@ -2492,7 +2515,7 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) cam->v4ldev->release = video_device_release; video_set_drvdata(cam->v4ldev, cam); - down(&cam->dev_sem); + mutex_lock(&cam->dev_mutex); err = video_register_device(cam->v4ldev, VFL_TYPE_GRABBER, video_nr[dev_nr]); @@ -2502,13 +2525,14 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) DBG(1, "Free /dev/videoX node not found"); video_nr[dev_nr] = -1; dev_nr = (dev_nr < ET61X251_MAX_DEVICES-1) ? dev_nr+1 : 0; - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); goto fail; } DBG(2, "V4L2 device registered as /dev/video%d", cam->v4ldev->minor); cam->module_param.force_munmap = force_munmap[dev_nr]; + cam->module_param.frame_timeout = frame_timeout[dev_nr]; dev_nr = (dev_nr < ET61X251_MAX_DEVICES-1) ? dev_nr+1 : 0; @@ -2519,7 +2543,7 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) usb_set_intfdata(intf, cam); - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); return 0; @@ -2543,7 +2567,7 @@ static void et61x251_usb_disconnect(struct usb_interface* intf) down_write(&et61x251_disconnect); - down(&cam->dev_sem); + mutex_lock(&cam->dev_mutex); DBG(2, "Disconnecting %s...", cam->v4ldev->name); @@ -2557,13 +2581,14 @@ static void et61x251_usb_disconnect(struct usb_interface* intf) et61x251_stop_transfer(cam); cam->state |= DEV_DISCONNECTED; wake_up_interruptible(&cam->wait_frame); - wake_up_interruptible(&cam->wait_stream); + wake_up(&cam->wait_stream); + usb_get_dev(cam->usbdev); } else { cam->state |= DEV_DISCONNECTED; et61x251_release_resources(cam); } - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); if (!cam->users) kfree(cam); diff --git a/drivers/usb/media/et61x251_sensor.h b/drivers/usb/media/et61x251_sensor.h index b9df910..56841ae 100644 --- a/drivers/usb/media/et61x251_sensor.h +++ b/drivers/usb/media/et61x251_sensor.h @@ -42,6 +42,9 @@ static int (*et61x251_sensor_table[])(struct et61x251_device*) = { \ NULL, \ }; +extern struct et61x251_device* +et61x251_match_id(struct et61x251_device* cam, const struct usb_device_id *id); + extern void et61x251_attach_sensor(struct et61x251_device* cam, struct et61x251_sensor* sensor); @@ -105,8 +108,6 @@ struct et61x251_sensor { int (*set_pix_format)(struct et61x251_device* cam, const struct v4l2_pix_format* pix); - const struct usb_device* usbdev; - /* Private */ struct v4l2_queryctrl _qctrl[ET61X251_MAX_CTRLS]; struct v4l2_rect _rect; diff --git a/drivers/usb/media/et61x251_tas5130d1b.c b/drivers/usb/media/et61x251_tas5130d1b.c index 65f1ae9..3998d76 100644 --- a/drivers/usb/media/et61x251_tas5130d1b.c +++ b/drivers/usb/media/et61x251_tas5130d1b.c @@ -126,12 +126,16 @@ static struct et61x251_sensor tas5130d1b = { int et61x251_probe_tas5130d1b(struct et61x251_device* cam) { - /* This sensor has no identifiers, so let's attach it anyway */ - et61x251_attach_sensor(cam, &tas5130d1b); + const struct usb_device_id tas5130d1b_id_table[] = { + { USB_DEVICE(0x102c, 0x6251), }, + { } + }; /* Sensor detection is based on USB pid/vid */ - if (le16_to_cpu(tas5130d1b.usbdev->descriptor.idProduct) != 0x6251) + if (!et61x251_match_id(cam, tas5130d1b_id_table)) return -ENODEV; + et61x251_attach_sensor(cam, &tas5130d1b); + return 0; } diff --git a/drivers/usb/media/ov511.c b/drivers/usb/media/ov511.c index 51e9cc0..da44579 100644 --- a/drivers/usb/media/ov511.c +++ b/drivers/usb/media/ov511.c @@ -365,14 +365,14 @@ reg_w(struct usb_ov511 *ov, unsigned char reg, unsigned char value) PDEBUG(5, "0x%02X:0x%02X", reg, value); - down(&ov->cbuf_lock); + mutex_lock(&ov->cbuf_lock); ov->cbuf[0] = value; rc = usb_control_msg(ov->dev, usb_sndctrlpipe(ov->dev, 0), (ov->bclass == BCL_OV518)?1:2 /* REG_IO */, USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0, (__u16)reg, &ov->cbuf[0], 1, 1000); - up(&ov->cbuf_lock); + mutex_unlock(&ov->cbuf_lock); if (rc < 0) err("reg write: error %d: %s", rc, symbolic(urb_errlist, rc)); @@ -387,7 +387,7 @@ reg_r(struct usb_ov511 *ov, unsigned char reg) { int rc; - down(&ov->cbuf_lock); + mutex_lock(&ov->cbuf_lock); rc = usb_control_msg(ov->dev, usb_rcvctrlpipe(ov->dev, 0), (ov->bclass == BCL_OV518)?1:3 /* REG_IO */, @@ -401,7 +401,7 @@ reg_r(struct usb_ov511 *ov, unsigned char reg) PDEBUG(5, "0x%02X:0x%02X", reg, ov->cbuf[0]); } - up(&ov->cbuf_lock); + mutex_unlock(&ov->cbuf_lock); return rc; } @@ -444,7 +444,7 @@ ov518_reg_w32(struct usb_ov511 *ov, unsigned char reg, u32 val, int n) PDEBUG(5, "0x%02X:%7d, n=%d", reg, val, n); - down(&ov->cbuf_lock); + mutex_lock(&ov->cbuf_lock); *((__le32 *)ov->cbuf) = __cpu_to_le32(val); @@ -453,7 +453,7 @@ ov518_reg_w32(struct usb_ov511 *ov, unsigned char reg, u32 val, int n) 1 /* REG_IO */, USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0, (__u16)reg, ov->cbuf, n, 1000); - up(&ov->cbuf_lock); + mutex_unlock(&ov->cbuf_lock); if (rc < 0) err("reg write multiple: error %d: %s", rc, @@ -768,14 +768,14 @@ i2c_r(struct usb_ov511 *ov, unsigned char reg) { int rc; - down(&ov->i2c_lock); + mutex_lock(&ov->i2c_lock); if (ov->bclass == BCL_OV518) rc = ov518_i2c_read_internal(ov, reg); else rc = ov511_i2c_read_internal(ov, reg); - up(&ov->i2c_lock); + mutex_unlock(&ov->i2c_lock); return rc; } @@ -785,14 +785,14 @@ i2c_w(struct usb_ov511 *ov, unsigned char reg, unsigned char value) { int rc; - down(&ov->i2c_lock); + mutex_lock(&ov->i2c_lock); if (ov->bclass == BCL_OV518) rc = ov518_i2c_write_internal(ov, reg, value); else rc = ov511_i2c_write_internal(ov, reg, value); - up(&ov->i2c_lock); + mutex_unlock(&ov->i2c_lock); return rc; } @@ -842,9 +842,9 @@ i2c_w_mask(struct usb_ov511 *ov, { int rc; - down(&ov->i2c_lock); + mutex_lock(&ov->i2c_lock); rc = ov51x_i2c_write_mask_internal(ov, reg, value, mask); - up(&ov->i2c_lock); + mutex_unlock(&ov->i2c_lock); return rc; } @@ -880,7 +880,7 @@ i2c_w_slave(struct usb_ov511 *ov, { int rc = 0; - down(&ov->i2c_lock); + mutex_lock(&ov->i2c_lock); /* Set new slave IDs */ rc = i2c_set_slave_internal(ov, slave); @@ -894,7 +894,7 @@ out: if (i2c_set_slave_internal(ov, ov->primary_i2c_slave) < 0) err("Couldn't restore primary I2C slave"); - up(&ov->i2c_lock); + mutex_unlock(&ov->i2c_lock); return rc; } @@ -906,7 +906,7 @@ i2c_r_slave(struct usb_ov511 *ov, { int rc; - down(&ov->i2c_lock); + mutex_lock(&ov->i2c_lock); /* Set new slave IDs */ rc = i2c_set_slave_internal(ov, slave); @@ -923,7 +923,7 @@ out: if (i2c_set_slave_internal(ov, ov->primary_i2c_slave) < 0) err("Couldn't restore primary I2C slave"); - up(&ov->i2c_lock); + mutex_unlock(&ov->i2c_lock); return rc; } @@ -933,7 +933,7 @@ ov51x_set_slave_ids(struct usb_ov511 *ov, unsigned char sid) { int rc; - down(&ov->i2c_lock); + mutex_lock(&ov->i2c_lock); rc = i2c_set_slave_internal(ov, sid); if (rc < 0) @@ -942,7 +942,7 @@ ov51x_set_slave_ids(struct usb_ov511 *ov, unsigned char sid) // FIXME: Is this actually necessary? rc = ov51x_reset(ov, OV511_RESET_NOREGS); out: - up(&ov->i2c_lock); + mutex_unlock(&ov->i2c_lock); return rc; } @@ -3832,7 +3832,7 @@ ov51x_alloc(struct usb_ov511 *ov) const int raw_bufsize = OV511_NUMFRAMES * MAX_RAW_DATA_SIZE(w, h); PDEBUG(4, "entered"); - down(&ov->buf_lock); + mutex_lock(&ov->buf_lock); if (ov->buf_state == BUF_ALLOCATED) goto out; @@ -3879,12 +3879,12 @@ ov51x_alloc(struct usb_ov511 *ov) ov->buf_state = BUF_ALLOCATED; out: - up(&ov->buf_lock); + mutex_unlock(&ov->buf_lock); PDEBUG(4, "leaving"); return 0; error: ov51x_do_dealloc(ov); - up(&ov->buf_lock); + mutex_unlock(&ov->buf_lock); PDEBUG(4, "errored"); return -ENOMEM; } @@ -3893,9 +3893,9 @@ static void ov51x_dealloc(struct usb_ov511 *ov) { PDEBUG(4, "entered"); - down(&ov->buf_lock); + mutex_lock(&ov->buf_lock); ov51x_do_dealloc(ov); - up(&ov->buf_lock); + mutex_unlock(&ov->buf_lock); PDEBUG(4, "leaving"); } @@ -3914,7 +3914,7 @@ ov51x_v4l1_open(struct inode *inode, struct file *file) PDEBUG(4, "opening"); - down(&ov->lock); + mutex_lock(&ov->lock); err = -EBUSY; if (ov->user) @@ -3958,7 +3958,7 @@ ov51x_v4l1_open(struct inode *inode, struct file *file) ov51x_led_control(ov, 1); out: - up(&ov->lock); + mutex_unlock(&ov->lock); return err; } @@ -3970,7 +3970,7 @@ ov51x_v4l1_close(struct inode *inode, struct file *file) PDEBUG(4, "ov511_close"); - down(&ov->lock); + mutex_lock(&ov->lock); ov->user--; ov51x_stop_isoc(ov); @@ -3981,15 +3981,15 @@ ov51x_v4l1_close(struct inode *inode, struct file *file) if (ov->dev) ov51x_dealloc(ov); - up(&ov->lock); + mutex_unlock(&ov->lock); /* Device unplugged while open. Only a minimum of unregistration is done * here; the disconnect callback already did the rest. */ if (!ov->dev) { - down(&ov->cbuf_lock); + mutex_lock(&ov->cbuf_lock); kfree(ov->cbuf); ov->cbuf = NULL; - up(&ov->cbuf_lock); + mutex_unlock(&ov->cbuf_lock); ov51x_dealloc(ov); kfree(ov); @@ -4449,12 +4449,12 @@ ov51x_v4l1_ioctl(struct inode *inode, struct file *file, struct usb_ov511 *ov = video_get_drvdata(vdev); int rc; - if (down_interruptible(&ov->lock)) + if (mutex_lock_interruptible(&ov->lock)) return -EINTR; rc = video_usercopy(inode, file, cmd, arg, ov51x_v4l1_ioctl_internal); - up(&ov->lock); + mutex_unlock(&ov->lock); return rc; } @@ -4468,7 +4468,7 @@ ov51x_v4l1_read(struct file *file, char __user *buf, size_t cnt, loff_t *ppos) int i, rc = 0, frmx = -1; struct ov511_frame *frame; - if (down_interruptible(&ov->lock)) + if (mutex_lock_interruptible(&ov->lock)) return -EINTR; PDEBUG(4, "%ld bytes, noblock=%d", count, noblock); @@ -4604,11 +4604,11 @@ restart: PDEBUG(4, "read finished, returning %ld (sweet)", count); - up(&ov->lock); + mutex_unlock(&ov->lock); return count; error: - up(&ov->lock); + mutex_unlock(&ov->lock); return rc; } @@ -4631,14 +4631,14 @@ ov51x_v4l1_mmap(struct file *file, struct vm_area_struct *vma) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1)))) return -EINVAL; - if (down_interruptible(&ov->lock)) + if (mutex_lock_interruptible(&ov->lock)) return -EINTR; pos = (unsigned long)ov->fbuf; while (size > 0) { page = vmalloc_to_pfn((void *)pos); if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) { - up(&ov->lock); + mutex_unlock(&ov->lock); return -EAGAIN; } start += PAGE_SIZE; @@ -4649,7 +4649,7 @@ ov51x_v4l1_mmap(struct file *file, struct vm_area_struct *vma) size = 0; } - up(&ov->lock); + mutex_unlock(&ov->lock); return 0; } @@ -5639,7 +5639,7 @@ static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); static ssize_t show_exposure(struct class_device *cd, char *buf) { struct usb_ov511 *ov = cd_to_ov(cd); - unsigned char exp; + unsigned char exp = 0; if (!ov->dev) return -ENODEV; @@ -5686,13 +5686,11 @@ ov51x_probe(struct usb_interface *intf, const struct usb_device_id *id) if (idesc->bInterfaceSubClass != 0x00) return -ENODEV; - if ((ov = kmalloc(sizeof(*ov), GFP_KERNEL)) == NULL) { + if ((ov = kzalloc(sizeof(*ov), GFP_KERNEL)) == NULL) { err("couldn't kmalloc ov struct"); goto error_out; } - memset(ov, 0, sizeof(*ov)); - ov->dev = dev; ov->iface = idesc->bInterfaceNumber; ov->led_policy = led; @@ -5738,11 +5736,10 @@ ov51x_probe(struct usb_interface *intf, const struct usb_device_id *id) init_waitqueue_head(&ov->wq); - init_MUTEX(&ov->lock); /* to 1 == available */ - init_MUTEX(&ov->buf_lock); - init_MUTEX(&ov->param_lock); - init_MUTEX(&ov->i2c_lock); - init_MUTEX(&ov->cbuf_lock); + mutex_init(&ov->lock); /* to 1 == available */ + mutex_init(&ov->buf_lock); + mutex_init(&ov->i2c_lock); + mutex_init(&ov->cbuf_lock); ov->buf_state = BUF_NOT_ALLOCATED; @@ -5833,10 +5830,10 @@ error: } if (ov->cbuf) { - down(&ov->cbuf_lock); + mutex_lock(&ov->cbuf_lock); kfree(ov->cbuf); ov->cbuf = NULL; - up(&ov->cbuf_lock); + mutex_unlock(&ov->cbuf_lock); } kfree(ov); @@ -5881,10 +5878,10 @@ ov51x_disconnect(struct usb_interface *intf) /* Free the memory */ if (ov && !ov->user) { - down(&ov->cbuf_lock); + mutex_lock(&ov->cbuf_lock); kfree(ov->cbuf); ov->cbuf = NULL; - up(&ov->cbuf_lock); + mutex_unlock(&ov->cbuf_lock); ov51x_dealloc(ov); kfree(ov); diff --git a/drivers/usb/media/ov511.h b/drivers/usb/media/ov511.h index 086509a..bce9b36 100644 --- a/drivers/usb/media/ov511.h +++ b/drivers/usb/media/ov511.h @@ -5,6 +5,7 @@ #include <linux/videodev.h> #include <linux/smp_lock.h> #include <linux/usb.h> +#include <linux/mutex.h> #define OV511_DEBUG /* Turn on debug messages */ @@ -435,7 +436,7 @@ struct usb_ov511 { int led_policy; /* LED: off|on|auto; OV511+ only */ - struct semaphore lock; /* Serializes user-accessible operations */ + struct mutex lock; /* Serializes user-accessible operations */ int user; /* user count for exclusive use */ int streaming; /* Are we streaming Isochronous? */ @@ -473,11 +474,9 @@ struct usb_ov511 { int packet_size; /* Frame size per isoc desc */ int packet_numbering; /* Is ISO frame numbering enabled? */ - struct semaphore param_lock; /* params lock for this camera */ - /* Framebuffer/sbuf management */ int buf_state; - struct semaphore buf_lock; + struct mutex buf_lock; struct ov51x_decomp_ops *decomp_ops; @@ -494,12 +493,12 @@ struct usb_ov511 { int pal; /* Device is designed for PAL resolution */ /* I2C interface */ - struct semaphore i2c_lock; /* Protect I2C controller regs */ + struct mutex i2c_lock; /* Protect I2C controller regs */ unsigned char primary_i2c_slave; /* I2C write id of sensor */ /* Control transaction stuff */ unsigned char *cbuf; /* Buffer for payload */ - struct semaphore cbuf_lock; + struct mutex cbuf_lock; }; /* Used to represent a list of values and their respective symbolic names */ diff --git a/drivers/usb/media/pwc/pwc-ctrl.c b/drivers/usb/media/pwc/pwc-ctrl.c index 3ebb6e9..0398b81 100644 --- a/drivers/usb/media/pwc/pwc-ctrl.c +++ b/drivers/usb/media/pwc/pwc-ctrl.c @@ -41,7 +41,6 @@ #include <asm/uaccess.h> #endif #include <asm/errno.h> -#include <linux/version.h> #include "pwc.h" #include "pwc-ioctl.h" diff --git a/drivers/usb/media/pwc/pwc-if.c b/drivers/usb/media/pwc/pwc-if.c index 4f9b0dc..90eb260 100644 --- a/drivers/usb/media/pwc/pwc-if.c +++ b/drivers/usb/media/pwc/pwc-if.c @@ -62,7 +62,6 @@ #include <linux/poll.h> #include <linux/slab.h> #include <linux/vmalloc.h> -#include <linux/version.h> #include <asm/io.h> #include "pwc.h" @@ -827,13 +826,10 @@ static int pwc_isoc_init(struct pwc_device *pdev) /* Get the current alternate interface, adjust packet size */ if (!udev->actconfig) return -EFAULT; -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,5) - idesc = &udev->actconfig->interface[0]->altsetting[pdev->valternate]; -#else + intf = usb_ifnum_to_if(udev, 0); if (intf) idesc = usb_altnum_to_altsetting(intf, pdev->valternate); -#endif if (!idesc) return -EFAULT; @@ -1871,12 +1867,11 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id Info("Warning: more than 1 configuration available.\n"); /* Allocate structure, initialize pointers, mutexes, etc. and link it to the usb_device */ - pdev = kmalloc(sizeof(struct pwc_device), GFP_KERNEL); + pdev = kzalloc(sizeof(struct pwc_device), GFP_KERNEL); if (pdev == NULL) { Err("Oops, could not allocate memory for pwc_device.\n"); return -ENOMEM; } - memset(pdev, 0, sizeof(struct pwc_device)); pdev->type = type_id; pdev->vsize = default_size; pdev->vframes = default_fps; diff --git a/drivers/usb/media/se401.c b/drivers/usb/media/se401.c index 2ba56228..f03ea7f 100644 --- a/drivers/usb/media/se401.c +++ b/drivers/usb/media/se401.c @@ -1157,21 +1157,21 @@ static int se401_mmap(struct file *file, struct vm_area_struct *vma) unsigned long size = vma->vm_end-vma->vm_start; unsigned long page, pos; - down(&se401->lock); + mutex_lock(&se401->lock); if (se401->dev == NULL) { - up(&se401->lock); + mutex_unlock(&se401->lock); return -EIO; } if (size > (((SE401_NUMFRAMES * se401->maxframesize) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))) { - up(&se401->lock); + mutex_unlock(&se401->lock); return -EINVAL; } pos = (unsigned long)se401->fbuf; while (size > 0) { page = vmalloc_to_pfn((void *)pos); if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) { - up(&se401->lock); + mutex_unlock(&se401->lock); return -EAGAIN; } start += PAGE_SIZE; @@ -1181,7 +1181,7 @@ static int se401_mmap(struct file *file, struct vm_area_struct *vma) else size = 0; } - up(&se401->lock); + mutex_unlock(&se401->lock); return 0; } @@ -1345,13 +1345,11 @@ static int se401_probe(struct usb_interface *intf, /* We found one */ info("SE401 camera found: %s", camera_name); - if ((se401 = kmalloc(sizeof(*se401), GFP_KERNEL)) == NULL) { + if ((se401 = kzalloc(sizeof(*se401), GFP_KERNEL)) == NULL) { err("couldn't kmalloc se401 struct"); return -ENOMEM; } - memset(se401, 0, sizeof(*se401)); - se401->dev = dev; se401->iface = interface->bInterfaceNumber; se401->camera_name = camera_name; @@ -1366,7 +1364,7 @@ static int se401_probe(struct usb_interface *intf, memcpy(&se401->vdev, &se401_template, sizeof(se401_template)); memcpy(se401->vdev.name, se401->camera_name, strlen(se401->camera_name)); init_waitqueue_head(&se401->wq); - init_MUTEX(&se401->lock); + mutex_init(&se401->lock); wmb(); if (video_register_device(&se401->vdev, VFL_TYPE_GRABBER, video_nr) == -1) { diff --git a/drivers/usb/media/se401.h b/drivers/usb/media/se401.h index 2e5846f..e88a40d 100644 --- a/drivers/usb/media/se401.h +++ b/drivers/usb/media/se401.h @@ -5,6 +5,7 @@ #include <asm/uaccess.h> #include <linux/videodev.h> #include <linux/smp_lock.h> +#include <linux/mutex.h> #define se401_DEBUG /* Turn on debug messages */ @@ -189,7 +190,7 @@ struct usb_se401 { int maxframesize; int cframesize; /* current framesize */ - struct semaphore lock; + struct mutex lock; int user; /* user count for exclusive use */ int removed; /* device disconnected */ diff --git a/drivers/usb/media/sn9c102.h b/drivers/usb/media/sn9c102.h index 17d60c1..1d70a62 100644 --- a/drivers/usb/media/sn9c102.h +++ b/drivers/usb/media/sn9c102.h @@ -33,7 +33,9 @@ #include <linux/types.h> #include <linux/param.h> #include <linux/rwsem.h> -#include <asm/semaphore.h> +#include <linux/mutex.h> +#include <linux/string.h> +#include <linux/stddef.h> #include "sn9c102_sensor.h" @@ -50,6 +52,7 @@ #define SN9C102_ALTERNATE_SETTING 8 #define SN9C102_URB_TIMEOUT msecs_to_jiffies(2 * SN9C102_ISO_PACKETS) #define SN9C102_CTRL_TIMEOUT 300 +#define SN9C102_FRAME_TIMEOUT 2 /*****************************************************************************/ @@ -107,16 +110,17 @@ struct sn9c102_sysfs_attr { struct sn9c102_module_param { u8 force_munmap; + u16 frame_timeout; }; -static DECLARE_MUTEX(sn9c102_sysfs_lock); +static DEFINE_MUTEX(sn9c102_sysfs_lock); static DECLARE_RWSEM(sn9c102_disconnect); struct sn9c102_device { struct video_device* v4ldev; enum sn9c102_bridge bridge; - struct sn9c102_sensor* sensor; + struct sn9c102_sensor sensor; struct usb_device* usbdev; struct urb* urb[SN9C102_URBS]; @@ -141,19 +145,28 @@ struct sn9c102_device { enum sn9c102_dev_state state; u8 users; - struct semaphore dev_sem, fileop_sem; + struct mutex dev_mutex, fileop_mutex; spinlock_t queue_lock; wait_queue_head_t open, wait_frame, wait_stream; }; /*****************************************************************************/ +struct sn9c102_device* +sn9c102_match_id(struct sn9c102_device* cam, const struct usb_device_id *id) +{ + if (usb_match_id(usb_ifnum_to_if(cam->usbdev, 0), id)) + return cam; + + return NULL; +} + + void sn9c102_attach_sensor(struct sn9c102_device* cam, struct sn9c102_sensor* sensor) { - cam->sensor = sensor; - cam->sensor->usbdev = cam->usbdev; + memcpy(&cam->sensor, sensor, sizeof(struct sn9c102_sensor)); } /*****************************************************************************/ @@ -196,7 +209,8 @@ do { \ #undef PDBG #define PDBG(fmt, args...) \ -dev_info(&cam->dev, "[%s:%d] " fmt "\n", __FUNCTION__, __LINE__ , ## args) +dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \ + __FUNCTION__, __LINE__ , ## args) #undef PDBGG #define PDBGG(fmt, args...) do {;} while(0) /* placeholder */ diff --git a/drivers/usb/media/sn9c102_core.c b/drivers/usb/media/sn9c102_core.c index c81397e..4c6cc63 100644 --- a/drivers/usb/media/sn9c102_core.c +++ b/drivers/usb/media/sn9c102_core.c @@ -25,11 +25,9 @@ #include <linux/moduleparam.h> #include <linux/errno.h> #include <linux/slab.h> -#include <linux/string.h> #include <linux/device.h> #include <linux/fs.h> #include <linux/delay.h> -#include <linux/stddef.h> #include <linux/compiler.h> #include <linux/ioctl.h> #include <linux/poll.h> @@ -49,8 +47,8 @@ #define SN9C102_MODULE_AUTHOR "(C) 2004-2006 Luca Risolia" #define SN9C102_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>" #define SN9C102_MODULE_LICENSE "GPL" -#define SN9C102_MODULE_VERSION "1:1.26" -#define SN9C102_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 26) +#define SN9C102_MODULE_VERSION "1:1.27" +#define SN9C102_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 27) /*****************************************************************************/ @@ -89,6 +87,15 @@ MODULE_PARM_DESC(force_munmap, "\nDefault value is "__MODULE_STRING(SN9C102_FORCE_MUNMAP)"." "\n"); +static unsigned int frame_timeout[] = {[0 ... SN9C102_MAX_DEVICES-1] = + SN9C102_FRAME_TIMEOUT}; +module_param_array(frame_timeout, uint, NULL, 0644); +MODULE_PARM_DESC(frame_timeout, + "\n<n[,...]> Timeout for a video frame in seconds." + "\nThis parameter is specific for each detected camera." + "\nDefault value is "__MODULE_STRING(SN9C102_FRAME_TIMEOUT)"." + "\n"); + #ifdef SN9C102_DEBUG static unsigned short debug = SN9C102_DEBUG_LEVEL; module_param(debug, ushort, 0644); @@ -128,8 +135,8 @@ static u32 sn9c102_request_buffers(struct sn9c102_device* cam, u32 count, enum sn9c102_io_method io) { - struct v4l2_pix_format* p = &(cam->sensor->pix_format); - struct v4l2_rect* r = &(cam->sensor->cropcap.bounds); + struct v4l2_pix_format* p = &(cam->sensor.pix_format); + struct v4l2_rect* r = &(cam->sensor.cropcap.bounds); const size_t imagesize = cam->module_param.force_munmap || io == IO_READ ? (p->width * p->height * p->priv) / 8 : @@ -449,19 +456,13 @@ sn9c102_i2c_try_write(struct sn9c102_device* cam, int sn9c102_i2c_read(struct sn9c102_device* cam, u8 address) { - if (!cam->sensor) - return -1; - - return sn9c102_i2c_try_read(cam, cam->sensor, address); + return sn9c102_i2c_try_read(cam, &cam->sensor, address); } int sn9c102_i2c_write(struct sn9c102_device* cam, u8 address, u8 value) { - if (!cam->sensor) - return -1; - - return sn9c102_i2c_try_write(cam, cam->sensor, address, value); + return sn9c102_i2c_try_write(cam, &cam->sensor, address, value); } /*****************************************************************************/ @@ -505,7 +506,7 @@ sn9c102_find_eof_header(struct sn9c102_device* cam, void* mem, size_t len) size_t eoflen = sizeof(sn9c102_eof_header_t), i; unsigned j, n = sizeof(sn9c102_eof_header) / eoflen; - if (cam->sensor->pix_format.pixelformat == V4L2_PIX_FMT_SN9C10X) + if (cam->sensor.pix_format.pixelformat == V4L2_PIX_FMT_SN9C10X) return NULL; /* EOF header does not exist in compressed data */ for (i = 0; (len >= eoflen) && (i <= len - eoflen); i++) @@ -535,7 +536,7 @@ static void sn9c102_urb_complete(struct urb *urb, struct pt_regs* regs) if ((*f)) (*f)->state = F_QUEUED; DBG(3, "Stream interrupted"); - wake_up_interruptible(&cam->wait_stream); + wake_up(&cam->wait_stream); } if (cam->state & DEV_DISCONNECTED) @@ -553,9 +554,9 @@ static void sn9c102_urb_complete(struct urb *urb, struct pt_regs* regs) (*f) = list_entry(cam->inqueue.next, struct sn9c102_frame_t, frame); - imagesize = (cam->sensor->pix_format.width * - cam->sensor->pix_format.height * - cam->sensor->pix_format.priv) / 8; + imagesize = (cam->sensor.pix_format.width * + cam->sensor.pix_format.height * + cam->sensor.pix_format.priv) / 8; soflen = (cam->bridge) == BRIDGE_SN9C103 ? sizeof(sn9c103_sof_header_t) : @@ -579,7 +580,7 @@ static void sn9c102_urb_complete(struct urb *urb, struct pt_regs* regs) redo: sof = sn9c102_find_sof_header(cam, pos, len); - if (!sof) { + if (likely(!sof)) { eof = sn9c102_find_eof_header(cam, pos, len); if ((*f)->state == F_GRABBING) { end_of_frame: @@ -589,8 +590,9 @@ end_of_frame: img = (eof > pos) ? eof - pos - 1 : 0; if ((*f)->buf.bytesused+img > imagesize) { - u32 b = (*f)->buf.bytesused + img - - imagesize; + u32 b; + b = (*f)->buf.bytesused + img - + imagesize; img = imagesize - (*f)->buf.bytesused; DBG(3, "Expected EOF not found: " "video frame cut"); @@ -608,9 +610,10 @@ end_of_frame: (*f)->buf.bytesused += img; if ((*f)->buf.bytesused == imagesize || - (cam->sensor->pix_format.pixelformat == + (cam->sensor.pix_format.pixelformat == V4L2_PIX_FMT_SN9C10X && eof)) { - u32 b = (*f)->buf.bytesused; + u32 b; + b = (*f)->buf.bytesused; (*f)->state = F_DONE; (*f)->buf.sequence= ++cam->frame_count; spin_lock(&cam->queue_lock); @@ -667,7 +670,7 @@ start_of_frame: if (eof && eof < sof) goto end_of_frame; /* (1) */ else { - if (cam->sensor->pix_format.pixelformat == + if (cam->sensor.pix_format.pixelformat == V4L2_PIX_FMT_SN9C10X) { eof = sof - soflen; goto end_of_frame; @@ -808,20 +811,21 @@ static int sn9c102_stop_transfer(struct sn9c102_device* cam) static int sn9c102_stream_interrupt(struct sn9c102_device* cam) { - int err = 0; + long timeout; cam->stream = STREAM_INTERRUPT; - err = wait_event_timeout(cam->wait_stream, - (cam->stream == STREAM_OFF) || - (cam->state & DEV_DISCONNECTED), - SN9C102_URB_TIMEOUT); + timeout = wait_event_timeout(cam->wait_stream, + (cam->stream == STREAM_OFF) || + (cam->state & DEV_DISCONNECTED), + SN9C102_URB_TIMEOUT); if (cam->state & DEV_DISCONNECTED) return -ENODEV; - else if (err) { + else if (cam->stream != STREAM_OFF) { cam->state |= DEV_MISCONFIGURED; - DBG(1, "The camera is misconfigured. To use it, close and " - "open /dev/video%d again.", cam->v4ldev->minor); - return err; + DBG(1, "URB timeout reached. The camera is misconfigured. " + "To use it, close and open /dev/video%d again.", + cam->v4ldev->minor); + return -EIO; } return 0; @@ -866,18 +870,18 @@ static ssize_t sn9c102_show_reg(struct class_device* cd, char* buf) struct sn9c102_device* cam; ssize_t count; - if (down_interruptible(&sn9c102_sysfs_lock)) + if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; } count = sprintf(buf, "%u\n", cam->sysfs.reg); - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return count; } @@ -890,18 +894,18 @@ sn9c102_store_reg(struct class_device* cd, const char* buf, size_t len) u8 index; ssize_t count; - if (down_interruptible(&sn9c102_sysfs_lock)) + if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; } index = sn9c102_strtou8(buf, len, &count); if (index > 0x1f || !count) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -EINVAL; } @@ -910,7 +914,7 @@ sn9c102_store_reg(struct class_device* cd, const char* buf, size_t len) DBG(2, "Moved SN9C10X register index to 0x%02X", cam->sysfs.reg); DBG(3, "Written bytes: %zd", count); - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return count; } @@ -922,17 +926,17 @@ static ssize_t sn9c102_show_val(struct class_device* cd, char* buf) ssize_t count; int val; - if (down_interruptible(&sn9c102_sysfs_lock)) + if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; } if ((val = sn9c102_read_reg(cam, cam->sysfs.reg)) < 0) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -EIO; } @@ -940,7 +944,7 @@ static ssize_t sn9c102_show_val(struct class_device* cd, char* buf) DBG(3, "Read bytes: %zd", count); - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return count; } @@ -954,24 +958,24 @@ sn9c102_store_val(struct class_device* cd, const char* buf, size_t len) ssize_t count; int err; - if (down_interruptible(&sn9c102_sysfs_lock)) + if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; } value = sn9c102_strtou8(buf, len, &count); if (!count) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -EINVAL; } err = sn9c102_write_reg(cam, value, cam->sysfs.reg); if (err) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -EIO; } @@ -979,7 +983,7 @@ sn9c102_store_val(struct class_device* cd, const char* buf, size_t len) cam->sysfs.reg, value); DBG(3, "Written bytes: %zd", count); - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return count; } @@ -990,12 +994,12 @@ static ssize_t sn9c102_show_i2c_reg(struct class_device* cd, char* buf) struct sn9c102_device* cam; ssize_t count; - if (down_interruptible(&sn9c102_sysfs_lock)) + if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; } @@ -1003,7 +1007,7 @@ static ssize_t sn9c102_show_i2c_reg(struct class_device* cd, char* buf) DBG(3, "Read bytes: %zd", count); - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return count; } @@ -1016,18 +1020,18 @@ sn9c102_store_i2c_reg(struct class_device* cd, const char* buf, size_t len) u8 index; ssize_t count; - if (down_interruptible(&sn9c102_sysfs_lock)) + if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; } index = sn9c102_strtou8(buf, len, &count); if (!count) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -EINVAL; } @@ -1036,7 +1040,7 @@ sn9c102_store_i2c_reg(struct class_device* cd, const char* buf, size_t len) DBG(2, "Moved sensor register index to 0x%02X", cam->sysfs.i2c_reg); DBG(3, "Written bytes: %zd", count); - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return count; } @@ -1048,22 +1052,22 @@ static ssize_t sn9c102_show_i2c_val(struct class_device* cd, char* buf) ssize_t count; int val; - if (down_interruptible(&sn9c102_sysfs_lock)) + if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; } - if (!(cam->sensor->sysfs_ops & SN9C102_I2C_READ)) { - up(&sn9c102_sysfs_lock); + if (!(cam->sensor.sysfs_ops & SN9C102_I2C_READ)) { + mutex_unlock(&sn9c102_sysfs_lock); return -ENOSYS; } if ((val = sn9c102_i2c_read(cam, cam->sysfs.i2c_reg)) < 0) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -EIO; } @@ -1071,7 +1075,7 @@ static ssize_t sn9c102_show_i2c_val(struct class_device* cd, char* buf) DBG(3, "Read bytes: %zd", count); - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return count; } @@ -1085,29 +1089,29 @@ sn9c102_store_i2c_val(struct class_device* cd, const char* buf, size_t len) ssize_t count; int err; - if (down_interruptible(&sn9c102_sysfs_lock)) + if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; } - if (!(cam->sensor->sysfs_ops & SN9C102_I2C_WRITE)) { - up(&sn9c102_sysfs_lock); + if (!(cam->sensor.sysfs_ops & SN9C102_I2C_WRITE)) { + mutex_unlock(&sn9c102_sysfs_lock); return -ENOSYS; } value = sn9c102_strtou8(buf, len, &count); if (!count) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -EINVAL; } err = sn9c102_i2c_write(cam, cam->sysfs.i2c_reg, value); if (err) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -EIO; } @@ -1115,7 +1119,7 @@ sn9c102_store_i2c_val(struct class_device* cd, const char* buf, size_t len) cam->sysfs.i2c_reg, value); DBG(3, "Written bytes: %zd", count); - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return count; } @@ -1130,18 +1134,18 @@ sn9c102_store_green(struct class_device* cd, const char* buf, size_t len) u8 value; ssize_t count; - if (down_interruptible(&sn9c102_sysfs_lock)) + if (mutex_lock_interruptible(&sn9c102_sysfs_lock)) return -ERESTARTSYS; cam = video_get_drvdata(to_video_device(cd)); if (!cam) { - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); return -ENODEV; } bridge = cam->bridge; - up(&sn9c102_sysfs_lock); + mutex_unlock(&sn9c102_sysfs_lock); value = sn9c102_strtou8(buf, len, &count); if (!count) @@ -1249,7 +1253,7 @@ static void sn9c102_create_sysfs(struct sn9c102_device* cam) video_device_create_file(v4ldev, &class_device_attr_blue); video_device_create_file(v4ldev, &class_device_attr_red); } - if (cam->sensor && cam->sensor->sysfs_ops) { + if (cam->sensor.sysfs_ops) { video_device_create_file(v4ldev, &class_device_attr_i2c_reg); video_device_create_file(v4ldev, &class_device_attr_i2c_val); } @@ -1312,7 +1316,7 @@ static int sn9c102_set_scale(struct sn9c102_device* cam, u8 scale) static int sn9c102_set_crop(struct sn9c102_device* cam, struct v4l2_rect* rect) { - struct sn9c102_sensor* s = cam->sensor; + struct sn9c102_sensor* s = &cam->sensor; u8 h_start = (u8)(rect->left - s->cropcap.bounds.left), v_start = (u8)(rect->top - s->cropcap.bounds.top), h_size = (u8)(rect->width / 16), @@ -1335,7 +1339,7 @@ static int sn9c102_set_crop(struct sn9c102_device* cam, struct v4l2_rect* rect) static int sn9c102_init(struct sn9c102_device* cam) { - struct sn9c102_sensor* s = cam->sensor; + struct sn9c102_sensor* s = &cam->sensor; struct v4l2_control ctrl; struct v4l2_queryctrl *qctrl; struct v4l2_rect* rect; @@ -1404,7 +1408,7 @@ static int sn9c102_init(struct sn9c102_device* cam) } if (!(cam->state & DEV_INITIALIZED)) { - init_MUTEX(&cam->fileop_sem); + mutex_init(&cam->fileop_mutex); spin_lock_init(&cam->queue_lock); init_waitqueue_head(&cam->wait_frame); init_waitqueue_head(&cam->wait_stream); @@ -1422,13 +1426,15 @@ static int sn9c102_init(struct sn9c102_device* cam) static void sn9c102_release_resources(struct sn9c102_device* cam) { - down(&sn9c102_sysfs_lock); + mutex_lock(&sn9c102_sysfs_lock); DBG(2, "V4L2 device /dev/video%d deregistered", cam->v4ldev->minor); video_set_drvdata(cam->v4ldev, NULL); video_unregister_device(cam->v4ldev); - up(&sn9c102_sysfs_lock); + usb_put_dev(cam->usbdev); + + mutex_unlock(&sn9c102_sysfs_lock); kfree(cam->control_buffer); } @@ -1449,7 +1455,7 @@ static int sn9c102_open(struct inode* inode, struct file* filp) cam = video_get_drvdata(video_devdata(filp)); - if (down_interruptible(&cam->dev_sem)) { + if (mutex_lock_interruptible(&cam->dev_mutex)) { up_read(&sn9c102_disconnect); return -ERESTARTSYS; } @@ -1461,7 +1467,7 @@ static int sn9c102_open(struct inode* inode, struct file* filp) err = -EWOULDBLOCK; goto out; } - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); err = wait_event_interruptible_exclusive(cam->open, cam->state & DEV_DISCONNECTED || !cam->users); @@ -1473,7 +1479,7 @@ static int sn9c102_open(struct inode* inode, struct file* filp) up_read(&sn9c102_disconnect); return -ENODEV; } - down(&cam->dev_sem); + mutex_lock(&cam->dev_mutex); } @@ -1501,7 +1507,7 @@ static int sn9c102_open(struct inode* inode, struct file* filp) DBG(3, "Video device /dev/video%d is open", cam->v4ldev->minor); out: - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); up_read(&sn9c102_disconnect); return err; } @@ -1511,7 +1517,7 @@ static int sn9c102_release(struct inode* inode, struct file* filp) { struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp)); - down(&cam->dev_sem); /* prevent disconnect() to be called */ + mutex_lock(&cam->dev_mutex); /* prevent disconnect() to be called */ sn9c102_stop_transfer(cam); @@ -1519,7 +1525,7 @@ static int sn9c102_release(struct inode* inode, struct file* filp) if (cam->state & DEV_DISCONNECTED) { sn9c102_release_resources(cam); - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); kfree(cam); return 0; } @@ -1529,7 +1535,7 @@ static int sn9c102_release(struct inode* inode, struct file* filp) DBG(3, "Video device /dev/video%d closed", cam->v4ldev->minor); - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); return 0; } @@ -1541,35 +1547,36 @@ sn9c102_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos) struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp)); struct sn9c102_frame_t* f, * i; unsigned long lock_flags; + long timeout; int err = 0; - if (down_interruptible(&cam->fileop_sem)) + if (mutex_lock_interruptible(&cam->fileop_mutex)) return -ERESTARTSYS; if (cam->state & DEV_DISCONNECTED) { DBG(1, "Device not present"); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -ENODEV; } if (cam->state & DEV_MISCONFIGURED) { DBG(1, "The camera is misconfigured. Close and open it " "again."); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EIO; } if (cam->io == IO_MMAP) { DBG(3, "Close and open the device again to choose " "the read method"); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EINVAL; } if (cam->io == IO_NONE) { if (!sn9c102_request_buffers(cam,cam->nreadbuffers, IO_READ)) { DBG(1, "read() failed, not enough memory"); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -ENOMEM; } cam->io = IO_READ; @@ -1583,30 +1590,32 @@ sn9c102_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos) } if (!count) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return 0; } if (list_empty(&cam->outqueue)) { if (filp->f_flags & O_NONBLOCK) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EAGAIN; } - err = wait_event_interruptible - ( cam->wait_frame, - (!list_empty(&cam->outqueue)) || - (cam->state & DEV_DISCONNECTED) || - (cam->state & DEV_MISCONFIGURED) ); - if (err) { - up(&cam->fileop_sem); - return err; + timeout = wait_event_interruptible_timeout + ( cam->wait_frame, + (!list_empty(&cam->outqueue)) || + (cam->state & DEV_DISCONNECTED) || + (cam->state & DEV_MISCONFIGURED), + cam->module_param.frame_timeout * + 1000 * msecs_to_jiffies(1) ); + if (timeout < 0) { + mutex_unlock(&cam->fileop_mutex); + return timeout; } if (cam->state & DEV_DISCONNECTED) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -ENODEV; } - if (cam->state & DEV_MISCONFIGURED) { - up(&cam->fileop_sem); + if (!timeout || (cam->state & DEV_MISCONFIGURED)) { + mutex_unlock(&cam->fileop_mutex); return -EIO; } } @@ -1634,7 +1643,7 @@ exit: PDBGG("Frame #%lu, bytes read: %zu", (unsigned long)f->buf.index, count); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return count; } @@ -1647,7 +1656,7 @@ static unsigned int sn9c102_poll(struct file *filp, poll_table *wait) unsigned long lock_flags; unsigned int mask = 0; - if (down_interruptible(&cam->fileop_sem)) + if (mutex_lock_interruptible(&cam->fileop_mutex)) return POLLERR; if (cam->state & DEV_DISCONNECTED) { @@ -1685,12 +1694,12 @@ static unsigned int sn9c102_poll(struct file *filp, poll_table *wait) if (!list_empty(&cam->outqueue)) mask |= POLLIN | POLLRDNORM; - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return mask; error: - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return POLLERR; } @@ -1724,25 +1733,25 @@ static int sn9c102_mmap(struct file* filp, struct vm_area_struct *vma) void *pos; u32 i; - if (down_interruptible(&cam->fileop_sem)) + if (mutex_lock_interruptible(&cam->fileop_mutex)) return -ERESTARTSYS; if (cam->state & DEV_DISCONNECTED) { DBG(1, "Device not present"); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -ENODEV; } if (cam->state & DEV_MISCONFIGURED) { DBG(1, "The camera is misconfigured. Close and open it " "again."); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EIO; } if (cam->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) || size != PAGE_ALIGN(cam->frame[0].buf.length)) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EINVAL; } @@ -1751,7 +1760,7 @@ static int sn9c102_mmap(struct file* filp, struct vm_area_struct *vma) break; } if (i == cam->nbuffers) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EINVAL; } @@ -1761,7 +1770,7 @@ static int sn9c102_mmap(struct file* filp, struct vm_area_struct *vma) pos = cam->frame[i].bufmem; while (size > 0) { /* size is page-aligned */ if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EAGAIN; } start += PAGE_SIZE; @@ -1774,7 +1783,7 @@ static int sn9c102_mmap(struct file* filp, struct vm_area_struct *vma) sn9c102_vm_open(vma); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return 0; } @@ -1816,6 +1825,7 @@ sn9c102_vidioc_enuminput(struct sn9c102_device* cam, void __user * arg) memset(&i, 0, sizeof(i)); strcpy(i.name, "Camera"); + i.type = V4L2_INPUT_TYPE_CAMERA; if (copy_to_user(arg, &i, sizeof(i))) return -EFAULT; @@ -1825,7 +1835,19 @@ sn9c102_vidioc_enuminput(struct sn9c102_device* cam, void __user * arg) static int -sn9c102_vidioc_gs_input(struct sn9c102_device* cam, void __user * arg) +sn9c102_vidioc_g_input(struct sn9c102_device* cam, void __user * arg) +{ + int index = 0; + + if (copy_to_user(arg, &index, sizeof(index))) + return -EFAULT; + + return 0; +} + + +static int +sn9c102_vidioc_s_input(struct sn9c102_device* cam, void __user * arg) { int index; @@ -1842,7 +1864,7 @@ sn9c102_vidioc_gs_input(struct sn9c102_device* cam, void __user * arg) static int sn9c102_vidioc_query_ctrl(struct sn9c102_device* cam, void __user * arg) { - struct sn9c102_sensor* s = cam->sensor; + struct sn9c102_sensor* s = &cam->sensor; struct v4l2_queryctrl qc; u8 i; @@ -1864,7 +1886,7 @@ sn9c102_vidioc_query_ctrl(struct sn9c102_device* cam, void __user * arg) static int sn9c102_vidioc_g_ctrl(struct sn9c102_device* cam, void __user * arg) { - struct sn9c102_sensor* s = cam->sensor; + struct sn9c102_sensor* s = &cam->sensor; struct v4l2_control ctrl; int err = 0; u8 i; @@ -1896,7 +1918,7 @@ exit: static int sn9c102_vidioc_s_ctrl(struct sn9c102_device* cam, void __user * arg) { - struct sn9c102_sensor* s = cam->sensor; + struct sn9c102_sensor* s = &cam->sensor; struct v4l2_control ctrl; u8 i; int err = 0; @@ -1909,6 +1931,8 @@ sn9c102_vidioc_s_ctrl(struct sn9c102_device* cam, void __user * arg) for (i = 0; i < ARRAY_SIZE(s->qctrl); i++) if (ctrl.id == s->qctrl[i].id) { + if (s->qctrl[i].flags & V4L2_CTRL_FLAG_DISABLED) + return -EINVAL; if (ctrl.value < s->qctrl[i].minimum || ctrl.value > s->qctrl[i].maximum) return -ERANGE; @@ -1931,7 +1955,7 @@ sn9c102_vidioc_s_ctrl(struct sn9c102_device* cam, void __user * arg) static int sn9c102_vidioc_cropcap(struct sn9c102_device* cam, void __user * arg) { - struct v4l2_cropcap* cc = &(cam->sensor->cropcap); + struct v4l2_cropcap* cc = &(cam->sensor.cropcap); cc->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; cc->pixelaspect.numerator = 1; @@ -1947,7 +1971,7 @@ sn9c102_vidioc_cropcap(struct sn9c102_device* cam, void __user * arg) static int sn9c102_vidioc_g_crop(struct sn9c102_device* cam, void __user * arg) { - struct sn9c102_sensor* s = cam->sensor; + struct sn9c102_sensor* s = &cam->sensor; struct v4l2_crop crop = { .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, }; @@ -1964,7 +1988,7 @@ sn9c102_vidioc_g_crop(struct sn9c102_device* cam, void __user * arg) static int sn9c102_vidioc_s_crop(struct sn9c102_device* cam, void __user * arg) { - struct sn9c102_sensor* s = cam->sensor; + struct sn9c102_sensor* s = &cam->sensor; struct v4l2_crop crop; struct v4l2_rect* rect; struct v4l2_rect* bounds = &(s->cropcap.bounds); @@ -2105,7 +2129,7 @@ static int sn9c102_vidioc_g_fmt(struct sn9c102_device* cam, void __user * arg) { struct v4l2_format format; - struct v4l2_pix_format* pfmt = &(cam->sensor->pix_format); + struct v4l2_pix_format* pfmt = &(cam->sensor.pix_format); if (copy_from_user(&format, arg, sizeof(format))) return -EFAULT; @@ -2130,7 +2154,7 @@ static int sn9c102_vidioc_try_s_fmt(struct sn9c102_device* cam, unsigned int cmd, void __user * arg) { - struct sn9c102_sensor* s = cam->sensor; + struct sn9c102_sensor* s = &cam->sensor; struct v4l2_format format; struct v4l2_pix_format* pix; struct v4l2_pix_format* pfmt = &(s->pix_format); @@ -2417,7 +2441,7 @@ sn9c102_vidioc_dqbuf(struct sn9c102_device* cam, struct file* filp, struct v4l2_buffer b; struct sn9c102_frame_t *f; unsigned long lock_flags; - int err = 0; + long timeout; if (copy_from_user(&b, arg, sizeof(b))) return -EFAULT; @@ -2430,16 +2454,18 @@ sn9c102_vidioc_dqbuf(struct sn9c102_device* cam, struct file* filp, return -EINVAL; if (filp->f_flags & O_NONBLOCK) return -EAGAIN; - err = wait_event_interruptible - ( cam->wait_frame, - (!list_empty(&cam->outqueue)) || - (cam->state & DEV_DISCONNECTED) || - (cam->state & DEV_MISCONFIGURED) ); - if (err) - return err; + timeout = wait_event_interruptible_timeout + ( cam->wait_frame, + (!list_empty(&cam->outqueue)) || + (cam->state & DEV_DISCONNECTED) || + (cam->state & DEV_MISCONFIGURED), + cam->module_param.frame_timeout * + 1000 * msecs_to_jiffies(1) ); + if (timeout < 0) + return timeout; if (cam->state & DEV_DISCONNECTED) return -ENODEV; - if (cam->state & DEV_MISCONFIGURED) + if (!timeout || (cam->state & DEV_MISCONFIGURED)) return -EIO; } @@ -2571,8 +2597,10 @@ static int sn9c102_ioctl_v4l2(struct inode* inode, struct file* filp, return sn9c102_vidioc_enuminput(cam, arg); case VIDIOC_G_INPUT: + return sn9c102_vidioc_g_input(cam, arg); + case VIDIOC_S_INPUT: - return sn9c102_vidioc_gs_input(cam, arg); + return sn9c102_vidioc_s_input(cam, arg); case VIDIOC_QUERYCTRL: return sn9c102_vidioc_query_ctrl(cam, arg); @@ -2655,19 +2683,19 @@ static int sn9c102_ioctl(struct inode* inode, struct file* filp, struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp)); int err = 0; - if (down_interruptible(&cam->fileop_sem)) + if (mutex_lock_interruptible(&cam->fileop_mutex)) return -ERESTARTSYS; if (cam->state & DEV_DISCONNECTED) { DBG(1, "Device not present"); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -ENODEV; } if (cam->state & DEV_MISCONFIGURED) { DBG(1, "The camera is misconfigured. Close and open it " "again."); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EIO; } @@ -2675,7 +2703,7 @@ static int sn9c102_ioctl(struct inode* inode, struct file* filp, err = sn9c102_ioctl_v4l2(inode, filp, cmd, (void __user *)arg); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return err; } @@ -2722,7 +2750,7 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) goto fail; } - init_MUTEX(&cam->dev_sem); + mutex_init(&cam->dev_mutex); r = sn9c102_read_reg(cam, 0x00); if (r < 0 || r != 0x10) { @@ -2752,10 +2780,10 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) break; } - if (!err && cam->sensor) { - DBG(2, "%s image sensor detected", cam->sensor->name); + if (!err) { + DBG(2, "%s image sensor detected", cam->sensor.name); DBG(3, "Support for %s maintained by %s", - cam->sensor->name, cam->sensor->maintainer); + cam->sensor.name, cam->sensor.maintainer); } else { DBG(1, "No supported image sensor detected"); err = -ENODEV; @@ -2776,7 +2804,7 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) cam->v4ldev->release = video_device_release; video_set_drvdata(cam->v4ldev, cam); - down(&cam->dev_sem); + mutex_lock(&cam->dev_mutex); err = video_register_device(cam->v4ldev, VFL_TYPE_GRABBER, video_nr[dev_nr]); @@ -2786,13 +2814,14 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) DBG(1, "Free /dev/videoX node not found"); video_nr[dev_nr] = -1; dev_nr = (dev_nr < SN9C102_MAX_DEVICES-1) ? dev_nr+1 : 0; - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); goto fail; } DBG(2, "V4L2 device registered as /dev/video%d", cam->v4ldev->minor); cam->module_param.force_munmap = force_munmap[dev_nr]; + cam->module_param.frame_timeout = frame_timeout[dev_nr]; dev_nr = (dev_nr < SN9C102_MAX_DEVICES-1) ? dev_nr+1 : 0; @@ -2803,7 +2832,7 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) usb_set_intfdata(intf, cam); - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); return 0; @@ -2827,7 +2856,7 @@ static void sn9c102_usb_disconnect(struct usb_interface* intf) down_write(&sn9c102_disconnect); - down(&cam->dev_sem); + mutex_lock(&cam->dev_mutex); DBG(2, "Disconnecting %s...", cam->v4ldev->name); @@ -2841,13 +2870,14 @@ static void sn9c102_usb_disconnect(struct usb_interface* intf) sn9c102_stop_transfer(cam); cam->state |= DEV_DISCONNECTED; wake_up_interruptible(&cam->wait_frame); - wake_up_interruptible(&cam->wait_stream); + wake_up(&cam->wait_stream); + usb_get_dev(cam->usbdev); } else { cam->state |= DEV_DISCONNECTED; sn9c102_release_resources(cam); } - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); if (!cam->users) kfree(cam); diff --git a/drivers/usb/media/sn9c102_ov7630.c b/drivers/usb/media/sn9c102_ov7630.c index 4a36519..42852b7 100644 --- a/drivers/usb/media/sn9c102_ov7630.c +++ b/drivers/usb/media/sn9c102_ov7630.c @@ -34,8 +34,8 @@ static int ov7630_init(struct sn9c102_device* cam) err += sn9c102_write_reg(cam, 0x0f, 0x18); err += sn9c102_write_reg(cam, 0x50, 0x19); - err += sn9c102_i2c_write(cam, 0x12, 0x8d); - err += sn9c102_i2c_write(cam, 0x11, 0x00); + err += sn9c102_i2c_write(cam, 0x12, 0x80); + err += sn9c102_i2c_write(cam, 0x11, 0x01); err += sn9c102_i2c_write(cam, 0x15, 0x34); err += sn9c102_i2c_write(cam, 0x16, 0x03); err += sn9c102_i2c_write(cam, 0x17, 0x1c); @@ -43,12 +43,14 @@ static int ov7630_init(struct sn9c102_device* cam) err += sn9c102_i2c_write(cam, 0x19, 0x06); err += sn9c102_i2c_write(cam, 0x1a, 0xf6); err += sn9c102_i2c_write(cam, 0x1b, 0x04); - err += sn9c102_i2c_write(cam, 0x20, 0x44); + err += sn9c102_i2c_write(cam, 0x20, 0xf6); err += sn9c102_i2c_write(cam, 0x23, 0xee); err += sn9c102_i2c_write(cam, 0x26, 0xa0); err += sn9c102_i2c_write(cam, 0x27, 0x9a); - err += sn9c102_i2c_write(cam, 0x28, 0x20); + err += sn9c102_i2c_write(cam, 0x28, 0xa0); err += sn9c102_i2c_write(cam, 0x29, 0x30); + err += sn9c102_i2c_write(cam, 0x2a, 0xa0); + err += sn9c102_i2c_write(cam, 0x2b, 0x1f); err += sn9c102_i2c_write(cam, 0x2f, 0x3d); err += sn9c102_i2c_write(cam, 0x30, 0x24); err += sn9c102_i2c_write(cam, 0x32, 0x86); @@ -80,7 +82,7 @@ static int ov7630_set_ctrl(struct sn9c102_device* cam, err += sn9c102_i2c_write(cam, 0x02, ctrl->value); break; case V4L2_CID_BLUE_BALANCE: - err += sn9c102_i2c_write(cam, 0x03, ctrl->value); + err += sn9c102_i2c_write(cam, 0x01, ctrl->value); break; case V4L2_CID_GAIN: err += sn9c102_i2c_write(cam, 0x00, ctrl->value); @@ -108,7 +110,7 @@ static int ov7630_set_ctrl(struct sn9c102_device* cam, err += sn9c102_i2c_write(cam, 0x0d, ctrl->value); break; case V4L2_CID_AUTO_WHITE_BALANCE: - err += sn9c102_i2c_write(cam, 0x12, (ctrl->value << 2) | 0x09); + err += sn9c102_i2c_write(cam, 0x12, (ctrl->value << 2) | 0x78); break; case V4L2_CID_AUTOGAIN: err += sn9c102_i2c_write(cam, 0x13, ctrl->value); @@ -371,26 +373,29 @@ static struct sn9c102_sensor ov7630 = { int sn9c102_probe_ov7630(struct sn9c102_device* cam) { + const struct usb_device_id ov7630_id_table[] = { + { USB_DEVICE(0x0c45, 0x602c), }, + { USB_DEVICE(0x0c45, 0x602d), }, + { USB_DEVICE(0x0c45, 0x608f), }, + { USB_DEVICE(0x0c45, 0x60b0), }, + { } + }; int err = 0; - sn9c102_attach_sensor(cam, &ov7630); - - if (le16_to_cpu(ov7630.usbdev->descriptor.idProduct) != 0x602c && - le16_to_cpu(ov7630.usbdev->descriptor.idProduct) != 0x602d && - le16_to_cpu(ov7630.usbdev->descriptor.idProduct) != 0x608f && - le16_to_cpu(ov7630.usbdev->descriptor.idProduct) != 0x60b0) + if (!sn9c102_match_id(cam, ov7630_id_table)) return -ENODEV; err += sn9c102_write_reg(cam, 0x01, 0x01); err += sn9c102_write_reg(cam, 0x00, 0x01); err += sn9c102_write_reg(cam, 0x28, 0x17); - if (err) return -EIO; - err += sn9c102_i2c_write(cam, 0x0b, 0); + err += sn9c102_i2c_try_write(cam, &ov7630, 0x0b, 0); if (err) return -ENODEV; + sn9c102_attach_sensor(cam, &ov7630); + return 0; } diff --git a/drivers/usb/media/sn9c102_pas202bca.c b/drivers/usb/media/sn9c102_pas202bca.c new file mode 100644 index 0000000..3453237 --- /dev/null +++ b/drivers/usb/media/sn9c102_pas202bca.c @@ -0,0 +1,238 @@ +/*************************************************************************** + * Plug-in for PAS202BCA image sensor connected to the SN9C10x PC Camera * + * Controllers * + * * + * Copyright (C) 2006 by Luca Risolia <luca.risolia@studio.unibo.it> * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the Free Software * + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * + ***************************************************************************/ + +#include <linux/delay.h> +#include "sn9c102_sensor.h" + + +static struct sn9c102_sensor pas202bca; + + +static int pas202bca_init(struct sn9c102_device* cam) +{ + int err = 0; + + err += sn9c102_write_reg(cam, 0x00, 0x10); + err += sn9c102_write_reg(cam, 0x00, 0x11); + err += sn9c102_write_reg(cam, 0x00, 0x14); + err += sn9c102_write_reg(cam, 0x20, 0x17); + err += sn9c102_write_reg(cam, 0x30, 0x19); + err += sn9c102_write_reg(cam, 0x09, 0x18); + + err += sn9c102_i2c_write(cam, 0x02, 0x14); + err += sn9c102_i2c_write(cam, 0x03, 0x40); + err += sn9c102_i2c_write(cam, 0x0d, 0x2c); + err += sn9c102_i2c_write(cam, 0x0e, 0x01); + err += sn9c102_i2c_write(cam, 0x0f, 0xa9); + err += sn9c102_i2c_write(cam, 0x10, 0x08); + err += sn9c102_i2c_write(cam, 0x13, 0x63); + err += sn9c102_i2c_write(cam, 0x15, 0x70); + err += sn9c102_i2c_write(cam, 0x11, 0x01); + + msleep(400); + + return err; +} + + +static int pas202bca_set_pix_format(struct sn9c102_device* cam, + const struct v4l2_pix_format* pix) +{ + int err = 0; + + if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X) + err += sn9c102_write_reg(cam, 0x24, 0x17); + else + err += sn9c102_write_reg(cam, 0x20, 0x17); + + return err; +} + + +static int pas202bca_set_ctrl(struct sn9c102_device* cam, + const struct v4l2_control* ctrl) +{ + int err = 0; + + switch (ctrl->id) { + case V4L2_CID_EXPOSURE: + err += sn9c102_i2c_write(cam, 0x04, ctrl->value >> 6); + err += sn9c102_i2c_write(cam, 0x05, ctrl->value & 0x3f); + break; + case V4L2_CID_RED_BALANCE: + err += sn9c102_i2c_write(cam, 0x09, ctrl->value); + break; + case V4L2_CID_BLUE_BALANCE: + err += sn9c102_i2c_write(cam, 0x07, ctrl->value); + break; + case V4L2_CID_GAIN: + err += sn9c102_i2c_write(cam, 0x10, ctrl->value); + break; + case SN9C102_V4L2_CID_GREEN_BALANCE: + err += sn9c102_i2c_write(cam, 0x08, ctrl->value); + break; + case SN9C102_V4L2_CID_DAC_MAGNITUDE: + err += sn9c102_i2c_write(cam, 0x0c, ctrl->value); + break; + default: + return -EINVAL; + } + err += sn9c102_i2c_write(cam, 0x11, 0x01); + + return err ? -EIO : 0; +} + + +static int pas202bca_set_crop(struct sn9c102_device* cam, + const struct v4l2_rect* rect) +{ + struct sn9c102_sensor* s = &pas202bca; + int err = 0; + u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 3, + v_start = (u8)(rect->top - s->cropcap.bounds.top) + 3; + + err += sn9c102_write_reg(cam, h_start, 0x12); + err += sn9c102_write_reg(cam, v_start, 0x13); + + return err; +} + + +static struct sn9c102_sensor pas202bca = { + .name = "PAS202BCA", + .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>", + .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE, + .frequency = SN9C102_I2C_400KHZ | SN9C102_I2C_100KHZ, + .interface = SN9C102_I2C_2WIRES, + .i2c_slave_id = 0x40, + .init = &pas202bca_init, + .qctrl = { + { + .id = V4L2_CID_EXPOSURE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "exposure", + .minimum = 0x01e5, + .maximum = 0x3fff, + .step = 0x0001, + .default_value = 0x01e5, + .flags = 0, + }, + { + .id = V4L2_CID_GAIN, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "global gain", + .minimum = 0x00, + .maximum = 0x1f, + .step = 0x01, + .default_value = 0x0c, + .flags = 0, + }, + { + .id = V4L2_CID_RED_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "red balance", + .minimum = 0x00, + .maximum = 0x0f, + .step = 0x01, + .default_value = 0x01, + .flags = 0, + }, + { + .id = V4L2_CID_BLUE_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "blue balance", + .minimum = 0x00, + .maximum = 0x0f, + .step = 0x01, + .default_value = 0x05, + .flags = 0, + }, + { + .id = SN9C102_V4L2_CID_GREEN_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "green balance", + .minimum = 0x00, + .maximum = 0x0f, + .step = 0x01, + .default_value = 0x00, + .flags = 0, + }, + { + .id = SN9C102_V4L2_CID_DAC_MAGNITUDE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "DAC magnitude", + .minimum = 0x00, + .maximum = 0xff, + .step = 0x01, + .default_value = 0x04, + .flags = 0, + }, + }, + .set_ctrl = &pas202bca_set_ctrl, + .cropcap = { + .bounds = { + .left = 0, + .top = 0, + .width = 640, + .height = 480, + }, + .defrect = { + .left = 0, + .top = 0, + .width = 640, + .height = 480, + }, + }, + .set_crop = &pas202bca_set_crop, + .pix_format = { + .width = 640, + .height = 480, + .pixelformat = V4L2_PIX_FMT_SBGGR8, + .priv = 8, + }, + .set_pix_format = &pas202bca_set_pix_format +}; + + +int sn9c102_probe_pas202bca(struct sn9c102_device* cam) +{ + const struct usb_device_id pas202bca_id_table[] = { + { USB_DEVICE(0x0c45, 0x60af), }, + { } + }; + int err = 0; + + if (!sn9c102_match_id(cam,pas202bca_id_table)) + return -ENODEV; + + err += sn9c102_write_reg(cam, 0x01, 0x01); + err += sn9c102_write_reg(cam, 0x40, 0x01); + err += sn9c102_write_reg(cam, 0x28, 0x17); + if (err) + return -EIO; + + if (sn9c102_i2c_try_write(cam, &pas202bca, 0x10, 0)) /* try to write */ + return -ENODEV; + + sn9c102_attach_sensor(cam, &pas202bca); + + return 0; +} diff --git a/drivers/usb/media/sn9c102_pas202bcb.c b/drivers/usb/media/sn9c102_pas202bcb.c index 5ca54c7..d068616 100644 --- a/drivers/usb/media/sn9c102_pas202bcb.c +++ b/drivers/usb/media/sn9c102_pas202bcb.c @@ -263,7 +263,7 @@ static struct sn9c102_sensor pas202bcb = { int sn9c102_probe_pas202bcb(struct sn9c102_device* cam) -{ +{ int r0 = 0, r1 = 0, err = 0; unsigned int pid = 0; diff --git a/drivers/usb/media/sn9c102_sensor.h b/drivers/usb/media/sn9c102_sensor.h index 7d953b2..2afd9e9 100644 --- a/drivers/usb/media/sn9c102_sensor.h +++ b/drivers/usb/media/sn9c102_sensor.h @@ -66,6 +66,7 @@ extern int sn9c102_probe_hv7131d(struct sn9c102_device* cam); extern int sn9c102_probe_mi0343(struct sn9c102_device* cam); extern int sn9c102_probe_ov7630(struct sn9c102_device* cam); extern int sn9c102_probe_pas106b(struct sn9c102_device* cam); +extern int sn9c102_probe_pas202bca(struct sn9c102_device* cam); extern int sn9c102_probe_pas202bcb(struct sn9c102_device* cam); extern int sn9c102_probe_tas5110c1b(struct sn9c102_device* cam); extern int sn9c102_probe_tas5130d1b(struct sn9c102_device* cam); @@ -81,12 +82,17 @@ static int (*sn9c102_sensor_table[])(struct sn9c102_device*) = { \ &sn9c102_probe_pas106b, /* strong detection based on SENSOR ids */ \ &sn9c102_probe_pas202bcb, /* strong detection based on SENSOR ids */ \ &sn9c102_probe_hv7131d, /* strong detection based on SENSOR ids */ \ + &sn9c102_probe_pas202bca, /* detection mostly based on USB pid/vid */ \ &sn9c102_probe_ov7630, /* detection mostly based on USB pid/vid */ \ &sn9c102_probe_tas5110c1b, /* detection based on USB pid/vid */ \ &sn9c102_probe_tas5130d1b, /* detection based on USB pid/vid */ \ NULL, \ }; +/* Device identification */ +extern struct sn9c102_device* +sn9c102_match_id(struct sn9c102_device* cam, const struct usb_device_id *id); + /* Attach a probed sensor to the camera. */ extern void sn9c102_attach_sensor(struct sn9c102_device* cam, @@ -108,6 +114,7 @@ sn9c102_attach_sensor(struct sn9c102_device* cam, static const struct usb_device_id sn9c102_id_table[] = { \ { USB_DEVICE(0x0c45, 0x6001), }, /* TAS5110C1B */ \ { USB_DEVICE(0x0c45, 0x6005), }, /* TAS5110C1B */ \ + { USB_DEVICE(0x0c45, 0x6007), }, \ { USB_DEVICE(0x0c45, 0x6009), }, /* PAS106B */ \ { USB_DEVICE(0x0c45, 0x600d), }, /* PAS106B */ \ { USB_DEVICE(0x0c45, 0x6024), }, \ @@ -126,7 +133,7 @@ static const struct usb_device_id sn9c102_id_table[] = { \ { SN9C102_USB_DEVICE(0x0c45, 0x6088, 0xff), }, \ { SN9C102_USB_DEVICE(0x0c45, 0x608a, 0xff), }, \ { SN9C102_USB_DEVICE(0x0c45, 0x608b, 0xff), }, \ - { SN9C102_USB_DEVICE(0x0c45, 0x608c, 0xff), }, /* HV7131x */ \ + { SN9C102_USB_DEVICE(0x0c45, 0x608c, 0xff), }, /* HV7131/R */ \ { SN9C102_USB_DEVICE(0x0c45, 0x608e, 0xff), }, /* CIS-VF10 */ \ { SN9C102_USB_DEVICE(0x0c45, 0x608f, 0xff), }, /* OV7630 */ \ { SN9C102_USB_DEVICE(0x0c45, 0x60a0, 0xff), }, \ @@ -359,12 +366,6 @@ struct sn9c102_sensor { error code without rolling back. */ - const struct usb_device* usbdev; - /* - Points to the usb_device struct after the sensor is attached. - Do not touch unless you know what you are doing. - */ - /* Do NOT write to the data below, it's READ ONLY. It is used by the core module to store successfully updated values of the above diff --git a/drivers/usb/media/sn9c102_tas5110c1b.c b/drivers/usb/media/sn9c102_tas5110c1b.c index 32ddf23..2e08c55 100644 --- a/drivers/usb/media/sn9c102_tas5110c1b.c +++ b/drivers/usb/media/sn9c102_tas5110c1b.c @@ -142,14 +142,18 @@ static struct sn9c102_sensor tas5110c1b = { int sn9c102_probe_tas5110c1b(struct sn9c102_device* cam) { - /* This sensor has no identifiers, so let's attach it anyway */ - sn9c102_attach_sensor(cam, &tas5110c1b); + const struct usb_device_id tas5110c1b_id_table[] = { + { USB_DEVICE(0x0c45, 0x6001), }, + { USB_DEVICE(0x0c45, 0x6005), }, + { USB_DEVICE(0x0c45, 0x60ab), }, + { } + }; /* Sensor detection is based on USB pid/vid */ - if (le16_to_cpu(tas5110c1b.usbdev->descriptor.idProduct) != 0x6001 && - le16_to_cpu(tas5110c1b.usbdev->descriptor.idProduct) != 0x6005 && - le16_to_cpu(tas5110c1b.usbdev->descriptor.idProduct) != 0x60ab) + if (!sn9c102_match_id(cam, tas5110c1b_id_table)) return -ENODEV; + sn9c102_attach_sensor(cam, &tas5110c1b); + return 0; } diff --git a/drivers/usb/media/sn9c102_tas5130d1b.c b/drivers/usb/media/sn9c102_tas5130d1b.c index a0728f0..c7b3397 100644 --- a/drivers/usb/media/sn9c102_tas5130d1b.c +++ b/drivers/usb/media/sn9c102_tas5130d1b.c @@ -153,13 +153,17 @@ static struct sn9c102_sensor tas5130d1b = { int sn9c102_probe_tas5130d1b(struct sn9c102_device* cam) { - /* This sensor has no identifiers, so let's attach it anyway */ - sn9c102_attach_sensor(cam, &tas5130d1b); + const struct usb_device_id tas5130d1b_id_table[] = { + { USB_DEVICE(0x0c45, 0x6025), }, + { USB_DEVICE(0x0c45, 0x60aa), }, + { } + }; /* Sensor detection is based on USB pid/vid */ - if (le16_to_cpu(tas5130d1b.usbdev->descriptor.idProduct) != 0x6025 && - le16_to_cpu(tas5130d1b.usbdev->descriptor.idProduct) != 0x60aa) + if (!sn9c102_match_id(cam, tas5130d1b_id_table)) return -ENODEV; + sn9c102_attach_sensor(cam, &tas5130d1b); + return 0; } diff --git a/drivers/usb/media/stv680.c b/drivers/usb/media/stv680.c index b497a6a..9636da2 100644 --- a/drivers/usb/media/stv680.c +++ b/drivers/usb/media/stv680.c @@ -67,6 +67,7 @@ #include <linux/errno.h> #include <linux/videodev.h> #include <linux/usb.h> +#include <linux/mutex.h> #include "stv680.h" @@ -317,12 +318,11 @@ static int stv_init (struct usb_stv *stv680) unsigned char *buffer; unsigned long int bufsize; - buffer = kmalloc (40, GFP_KERNEL); + buffer = kzalloc (40, GFP_KERNEL); if (buffer == NULL) { PDEBUG (0, "STV(e): Out of (small buf) memory"); return -1; } - memset (buffer, 0, 40); udelay (100); /* set config 1, interface 0, alternate 0 */ @@ -1258,22 +1258,22 @@ static int stv680_mmap (struct file *file, struct vm_area_struct *vma) unsigned long size = vma->vm_end-vma->vm_start; unsigned long page, pos; - down (&stv680->lock); + mutex_lock(&stv680->lock); if (stv680->udev == NULL) { - up (&stv680->lock); + mutex_unlock(&stv680->lock); return -EIO; } if (size > (((STV680_NUMFRAMES * stv680->maxframesize) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))) { - up (&stv680->lock); + mutex_unlock(&stv680->lock); return -EINVAL; } pos = (unsigned long) stv680->fbuf; while (size > 0) { page = vmalloc_to_pfn((void *)pos); if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) { - up (&stv680->lock); + mutex_unlock(&stv680->lock); return -EAGAIN; } start += PAGE_SIZE; @@ -1283,7 +1283,7 @@ static int stv680_mmap (struct file *file, struct vm_area_struct *vma) else size = 0; } - up (&stv680->lock); + mutex_unlock(&stv680->lock); return 0; } @@ -1387,14 +1387,12 @@ static int stv680_probe (struct usb_interface *intf, const struct usb_device_id goto error; } /* We found one */ - if ((stv680 = kmalloc (sizeof (*stv680), GFP_KERNEL)) == NULL) { + if ((stv680 = kzalloc (sizeof (*stv680), GFP_KERNEL)) == NULL) { PDEBUG (0, "STV(e): couldn't kmalloc stv680 struct."); retval = -ENOMEM; goto error; } - memset (stv680, 0, sizeof (*stv680)); - stv680->udev = dev; stv680->camera_name = camera_name; @@ -1409,7 +1407,7 @@ static int stv680_probe (struct usb_interface *intf, const struct usb_device_id memcpy (stv680->vdev->name, stv680->camera_name, strlen (stv680->camera_name)); init_waitqueue_head (&stv680->wq); - init_MUTEX (&stv680->lock); + mutex_init (&stv680->lock); wmb (); if (video_register_device (stv680->vdev, VFL_TYPE_GRABBER, video_nr) == -1) { diff --git a/drivers/usb/media/stv680.h b/drivers/usb/media/stv680.h index b0551cd..ea46e00 100644 --- a/drivers/usb/media/stv680.h +++ b/drivers/usb/media/stv680.h @@ -118,7 +118,7 @@ struct usb_stv { int origGain; int origMode; /* original camera mode */ - struct semaphore lock; /* to lock the structure */ + struct mutex lock; /* to lock the structure */ int user; /* user count for exclusive use */ int removed; /* device disconnected */ int streaming; /* Are we streaming video? */ diff --git a/drivers/usb/media/usbvideo.c b/drivers/usb/media/usbvideo.c index 63a72e5..0b51fae 100644 --- a/drivers/usb/media/usbvideo.c +++ b/drivers/usb/media/usbvideo.c @@ -690,14 +690,13 @@ int usbvideo_register( } base_size = num_cams * sizeof(struct uvd) + sizeof(struct usbvideo); - cams = (struct usbvideo *) kmalloc(base_size, GFP_KERNEL); + cams = (struct usbvideo *) kzalloc(base_size, GFP_KERNEL); if (cams == NULL) { err("Failed to allocate %d. bytes for usbvideo struct", base_size); return -ENOMEM; } dbg("%s: Allocated $%p (%d. bytes) for %d. cameras", __FUNCTION__, cams, base_size, num_cams); - memset(cams, 0, base_size); /* Copy callbacks, apply defaults for those that are not set */ memmove(&cams->cb, cbTbl, sizeof(cams->cb)); @@ -715,7 +714,7 @@ int usbvideo_register( cams->md_module = md; if (cams->md_module == NULL) warn("%s: module == NULL!", __FUNCTION__); - init_MUTEX(&cams->lock); /* to 1 == available */ + mutex_init(&cams->lock); /* to 1 == available */ for (i = 0; i < num_cams; i++) { struct uvd *up = &cams->cam[i]; @@ -863,7 +862,7 @@ static void usbvideo_Disconnect(struct usb_interface *intf) if (uvd->debug > 0) info("%s(%p.)", __FUNCTION__, intf); - down(&uvd->lock); + mutex_lock(&uvd->lock); uvd->remove_pending = 1; /* Now all ISO data will be ignored */ /* At this time we ask to cancel outstanding URBs */ @@ -883,7 +882,7 @@ static void usbvideo_Disconnect(struct usb_interface *intf) info("%s: In use, disconnect pending.", __FUNCTION__); else usbvideo_CameraRelease(uvd); - up(&uvd->lock); + mutex_unlock(&uvd->lock); info("USB camera disconnected."); usbvideo_ClientDecModCount(uvd); @@ -930,19 +929,19 @@ static int usbvideo_find_struct(struct usbvideo *cams) err("No usbvideo handle?"); return -1; } - down(&cams->lock); + mutex_lock(&cams->lock); for (u = 0; u < cams->num_cameras; u++) { struct uvd *uvd = &cams->cam[u]; if (!uvd->uvd_used) /* This one is free */ { uvd->uvd_used = 1; /* In use now */ - init_MUTEX(&uvd->lock); /* to 1 == available */ + mutex_init(&uvd->lock); /* to 1 == available */ uvd->dev = NULL; rv = u; break; } } - up(&cams->lock); + mutex_unlock(&cams->lock); return rv; } @@ -984,7 +983,7 @@ struct uvd *usbvideo_AllocateDevice(struct usbvideo *cams) /* Not relying upon caller we increase module counter ourselves */ usbvideo_ClientIncModCount(uvd); - down(&uvd->lock); + mutex_lock(&uvd->lock); for (i=0; i < USBVIDEO_NUMSBUF; i++) { uvd->sbuf[i].urb = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL); if (uvd->sbuf[i].urb == NULL) { @@ -1007,7 +1006,7 @@ struct uvd *usbvideo_AllocateDevice(struct usbvideo *cams) * return control to the client's probe function right now. */ allocate_done: - up (&uvd->lock); + mutex_unlock(&uvd->lock); usbvideo_ClientDecModCount(uvd); return uvd; } @@ -1121,7 +1120,7 @@ static int usbvideo_v4l_open(struct inode *inode, struct file *file) info("%s($%p)", __FUNCTION__, dev); usbvideo_ClientIncModCount(uvd); - down(&uvd->lock); + mutex_lock(&uvd->lock); if (uvd->user) { err("%s: Someone tried to open an already opened device!", __FUNCTION__); @@ -1202,7 +1201,7 @@ static int usbvideo_v4l_open(struct inode *inode, struct file *file) } } } - up(&uvd->lock); + mutex_unlock(&uvd->lock); if (errCode != 0) usbvideo_ClientDecModCount(uvd); if (uvd->debug > 0) @@ -1231,7 +1230,7 @@ static int usbvideo_v4l_close(struct inode *inode, struct file *file) if (uvd->debug > 1) info("%s($%p)", __FUNCTION__, dev); - down(&uvd->lock); + mutex_lock(&uvd->lock); GET_CALLBACK(uvd, stopDataPump)(uvd); usbvideo_rvfree(uvd->fbuf, uvd->fbuf_size); uvd->fbuf = NULL; @@ -1252,7 +1251,7 @@ static int usbvideo_v4l_close(struct inode *inode, struct file *file) info("usbvideo_v4l_close: Final disconnect."); usbvideo_CameraRelease(uvd); } - up(&uvd->lock); + mutex_unlock(&uvd->lock); usbvideo_ClientDecModCount(uvd); if (uvd->debug > 1) @@ -1512,7 +1511,7 @@ static ssize_t usbvideo_v4l_read(struct file *file, char __user *buf, if (uvd->debug >= 1) info("%s: %Zd. bytes, noblock=%d.", __FUNCTION__, count, noblock); - down(&uvd->lock); + mutex_lock(&uvd->lock); /* See if a frame is completed, then use it. */ for(i = 0; i < USBVIDEO_NUMFRAMES; i++) { @@ -1644,7 +1643,7 @@ static ssize_t usbvideo_v4l_read(struct file *file, char __user *buf, } } read_done: - up(&uvd->lock); + mutex_unlock(&uvd->lock); return count; } diff --git a/drivers/usb/media/usbvideo.h b/drivers/usb/media/usbvideo.h index 6c390a1f..135433c 100644 --- a/drivers/usb/media/usbvideo.h +++ b/drivers/usb/media/usbvideo.h @@ -19,6 +19,7 @@ #include <linux/config.h> #include <linux/videodev.h> #include <linux/usb.h> +#include <linux/mutex.h> /* Most helpful debugging aid */ #define assert(expr) ((void) ((expr) ? 0 : (err("assert failed at line %d",__LINE__)))) @@ -213,7 +214,7 @@ struct uvd { unsigned long flags; /* FLAGS_USBVIDEO_xxx */ unsigned long paletteBits; /* Which palettes we accept? */ unsigned short defaultPalette; /* What palette to use for read() */ - struct semaphore lock; + struct mutex lock; int user; /* user count for exclusive use */ videosize_t videosize; /* Current setting */ @@ -272,7 +273,7 @@ struct usbvideo { int num_cameras; /* As allocated */ struct usb_driver usbdrv; /* Interface to the USB stack */ char drvName[80]; /* Driver name */ - struct semaphore lock; /* Mutex protecting camera structures */ + struct mutex lock; /* Mutex protecting camera structures */ struct usbvideo_cb cb; /* Table of callbacks (virtual methods) */ struct video_device vdt; /* Video device template */ struct uvd *cam; /* Array of camera structures */ diff --git a/drivers/usb/media/vicam.c b/drivers/usb/media/vicam.c index 5df1440..1d06e53 100644 --- a/drivers/usb/media/vicam.c +++ b/drivers/usb/media/vicam.c @@ -42,6 +42,7 @@ #include <linux/vmalloc.h> #include <linux/slab.h> #include <linux/proc_fs.h> +#include <linux/mutex.h> #include "usbvideo.h" // #define VICAM_DEBUG @@ -407,7 +408,7 @@ struct vicam_camera { struct usb_device *udev; // usb device /* guard against simultaneous accesses to the camera */ - struct semaphore cam_lock; + struct mutex cam_lock; int is_initialized; u8 open_count; @@ -461,12 +462,12 @@ static int send_control_msg(struct vicam_camera *cam, u16 size) { int status = -ENODEV; - down(&cam->cam_lock); + mutex_lock(&cam->cam_lock); if (cam->udev) { status = __send_control_msg(cam, request, value, index, cp, size); } - up(&cam->cam_lock); + mutex_unlock(&cam->cam_lock); return status; } static int @@ -763,6 +764,7 @@ vicam_open(struct inode *inode, struct file *file) if (!cam) { printk(KERN_ERR "vicam video_device improperly initialized"); + return -EINVAL; } /* the videodev_lock held above us protects us from @@ -831,13 +833,13 @@ vicam_close(struct inode *inode, struct file *file) rvfree(cam->framebuf, VICAM_MAX_FRAME_SIZE * VICAM_FRAMES); kfree(cam->cntrlbuf); - down(&cam->cam_lock); + mutex_lock(&cam->cam_lock); cam->open_count--; open_count = cam->open_count; udev = cam->udev; - up(&cam->cam_lock); + mutex_unlock(&cam->cam_lock); if (!open_count && !udev) { kfree(cam); @@ -960,7 +962,7 @@ read_frame(struct vicam_camera *cam, int framenum) request[8] = 0; // bytes 9-15 do not seem to affect exposure or image quality - down(&cam->cam_lock); + mutex_lock(&cam->cam_lock); if (!cam->udev) { goto done; @@ -985,7 +987,7 @@ read_frame(struct vicam_camera *cam, int framenum) } done: - up(&cam->cam_lock); + mutex_unlock(&cam->cam_lock); } static ssize_t @@ -1309,7 +1311,7 @@ vicam_probe( struct usb_interface *intf, const struct usb_device_id *id) cam->shutter_speed = 15; - init_MUTEX(&cam->cam_lock); + mutex_init(&cam->cam_lock); memcpy(&cam->vdev, &vicam_template, sizeof (vicam_template)); @@ -1351,7 +1353,7 @@ vicam_disconnect(struct usb_interface *intf) /* stop the camera from being used */ - down(&cam->cam_lock); + mutex_lock(&cam->cam_lock); /* mark the camera as gone */ @@ -1368,7 +1370,7 @@ vicam_disconnect(struct usb_interface *intf) open_count = cam->open_count; - up(&cam->cam_lock); + mutex_unlock(&cam->cam_lock); if (!open_count) { kfree(cam); diff --git a/drivers/usb/media/w9968cf.c b/drivers/usb/media/w9968cf.c index 9937fc6..b57dec3 100644 --- a/drivers/usb/media/w9968cf.c +++ b/drivers/usb/media/w9968cf.c @@ -47,6 +47,13 @@ #include "w9968cf.h" #include "w9968cf_decoder.h" +static struct w9968cf_vpp_t* w9968cf_vpp; +static DECLARE_WAIT_QUEUE_HEAD(w9968cf_vppmod_wait); + +static LIST_HEAD(w9968cf_dev_list); /* head of V4L registered cameras list */ +static DEFINE_MUTEX(w9968cf_devlist_mutex); /* semaphore for list traversal */ + +static DECLARE_RWSEM(w9968cf_disconnect); /* prevent races with open() */ /**************************************************************************** @@ -695,13 +702,12 @@ static int w9968cf_allocate_memory(struct w9968cf_device* cam) /* Allocate memory for the isochronous transfer buffers */ for (i = 0; i < W9968CF_URBS; i++) { if (!(cam->transfer_buffer[i] = - kmalloc(W9968CF_ISO_PACKETS*p_size, GFP_KERNEL))) { + kzalloc(W9968CF_ISO_PACKETS*p_size, GFP_KERNEL))) { DBG(1, "Couldn't allocate memory for the isochronous " "transfer buffers (%u bytes)", p_size * W9968CF_ISO_PACKETS) return -ENOMEM; } - memset(cam->transfer_buffer[i], 0, W9968CF_ISO_PACKETS*p_size); } /* Allocate memory for the temporary frame buffer */ @@ -2419,7 +2425,7 @@ w9968cf_configure_camera(struct w9968cf_device* cam, enum w9968cf_model_id mod_id, const unsigned short dev_nr) { - init_MUTEX(&cam->fileop_sem); + mutex_init(&cam->fileop_mutex); init_waitqueue_head(&cam->open); spin_lock_init(&cam->urb_lock); spin_lock_init(&cam->flist_lock); @@ -2647,7 +2653,7 @@ static void w9968cf_adjust_configuration(struct w9968cf_device* cam) --------------------------------------------------------------------------*/ static void w9968cf_release_resources(struct w9968cf_device* cam) { - down(&w9968cf_devlist_sem); + mutex_lock(&w9968cf_devlist_mutex); DBG(2, "V4L device deregistered: /dev/video%d", cam->v4ldev->minor) @@ -2658,7 +2664,7 @@ static void w9968cf_release_resources(struct w9968cf_device* cam) kfree(cam->control_buffer); kfree(cam->data_buffer); - up(&w9968cf_devlist_sem); + mutex_unlock(&w9968cf_devlist_mutex); } @@ -2678,14 +2684,14 @@ static int w9968cf_open(struct inode* inode, struct file* filp) cam = (struct w9968cf_device*)video_get_drvdata(video_devdata(filp)); - down(&cam->dev_sem); + mutex_lock(&cam->dev_mutex); if (cam->sensor == CC_UNKNOWN) { DBG(2, "No supported image sensor has been detected by the " "'ovcamchip' module for the %s (/dev/video%d). Make " "sure it is loaded *before* (re)connecting the camera.", symbolic(camlist, cam->id), cam->v4ldev->minor) - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); up_read(&w9968cf_disconnect); return -ENODEV; } @@ -2694,11 +2700,11 @@ static int w9968cf_open(struct inode* inode, struct file* filp) DBG(2, "%s (/dev/video%d) has been already occupied by '%s'", symbolic(camlist, cam->id),cam->v4ldev->minor,cam->command) if ((filp->f_flags & O_NONBLOCK)||(filp->f_flags & O_NDELAY)) { - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); up_read(&w9968cf_disconnect); return -EWOULDBLOCK; } - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); err = wait_event_interruptible_exclusive(cam->open, cam->disconnected || !cam->users); @@ -2710,7 +2716,7 @@ static int w9968cf_open(struct inode* inode, struct file* filp) up_read(&w9968cf_disconnect); return -ENODEV; } - down(&cam->dev_sem); + mutex_lock(&cam->dev_mutex); } DBG(5, "Opening '%s', /dev/video%d ...", @@ -2739,7 +2745,7 @@ static int w9968cf_open(struct inode* inode, struct file* filp) DBG(5, "Video device is open") - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); up_read(&w9968cf_disconnect); return 0; @@ -2747,7 +2753,7 @@ static int w9968cf_open(struct inode* inode, struct file* filp) deallocate_memory: w9968cf_deallocate_memory(cam); DBG(2, "Failed to open the video device") - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); up_read(&w9968cf_disconnect); return err; } @@ -2759,13 +2765,13 @@ static int w9968cf_release(struct inode* inode, struct file* filp) cam = (struct w9968cf_device*)video_get_drvdata(video_devdata(filp)); - down(&cam->dev_sem); /* prevent disconnect() to be called */ + mutex_lock(&cam->dev_mutex); /* prevent disconnect() to be called */ w9968cf_stop_transfer(cam); if (cam->disconnected) { w9968cf_release_resources(cam); - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); kfree(cam); return 0; } @@ -2775,7 +2781,7 @@ static int w9968cf_release(struct inode* inode, struct file* filp) wake_up_interruptible_nr(&cam->open, 1); DBG(5, "Video device closed") - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); return 0; } @@ -2792,18 +2798,18 @@ w9968cf_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos) if (filp->f_flags & O_NONBLOCK) return -EWOULDBLOCK; - if (down_interruptible(&cam->fileop_sem)) + if (mutex_lock_interruptible(&cam->fileop_mutex)) return -ERESTARTSYS; if (cam->disconnected) { DBG(2, "Device not present") - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -ENODEV; } if (cam->misconfigured) { DBG(2, "The camera is misconfigured. Close and open it again.") - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EIO; } @@ -2818,11 +2824,11 @@ w9968cf_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos) cam->frame[1].status == F_READY || cam->disconnected); if (err) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return err; } if (cam->disconnected) { - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -ENODEV; } @@ -2836,7 +2842,7 @@ w9968cf_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos) if (copy_to_user(buf, fr->buffer, count)) { fr->status = F_UNUSED; - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EFAULT; } *f_pos += count; @@ -2845,7 +2851,7 @@ w9968cf_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos) DBG(5, "%zu bytes read", count) - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return count; } @@ -2899,24 +2905,24 @@ w9968cf_ioctl(struct inode* inode, struct file* filp, cam = (struct w9968cf_device*)video_get_drvdata(video_devdata(filp)); - if (down_interruptible(&cam->fileop_sem)) + if (mutex_lock_interruptible(&cam->fileop_mutex)) return -ERESTARTSYS; if (cam->disconnected) { DBG(2, "Device not present") - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -ENODEV; } if (cam->misconfigured) { DBG(2, "The camera is misconfigured. Close and open it again.") - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return -EIO; } err = w9968cf_v4l_ioctl(inode, filp, cmd, (void __user *)arg); - up(&cam->fileop_sem); + mutex_unlock(&cam->fileop_mutex); return err; } @@ -3499,14 +3505,12 @@ w9968cf_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) return -ENODEV; cam = (struct w9968cf_device*) - kmalloc(sizeof(struct w9968cf_device), GFP_KERNEL); + kzalloc(sizeof(struct w9968cf_device), GFP_KERNEL); if (!cam) return -ENOMEM; - memset(cam, 0, sizeof(*cam)); - - init_MUTEX(&cam->dev_sem); - down(&cam->dev_sem); + mutex_init(&cam->dev_mutex); + mutex_lock(&cam->dev_mutex); cam->usbdev = udev; /* NOTE: a local copy is used to avoid possible race conditions */ @@ -3518,10 +3522,10 @@ w9968cf_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) simcams = W9968CF_SIMCAMS; /* How many cameras are connected ? */ - down(&w9968cf_devlist_sem); + mutex_lock(&w9968cf_devlist_mutex); list_for_each(ptr, &w9968cf_dev_list) sc++; - up(&w9968cf_devlist_sem); + mutex_unlock(&w9968cf_devlist_mutex); if (sc >= simcams) { DBG(2, "Device rejected: too many connected cameras " @@ -3532,21 +3536,19 @@ w9968cf_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) /* Allocate 2 bytes of memory for camera control USB transfers */ - if (!(cam->control_buffer = kmalloc(2, GFP_KERNEL))) { + if (!(cam->control_buffer = kzalloc(2, GFP_KERNEL))) { DBG(1,"Couldn't allocate memory for camera control transfers") err = -ENOMEM; goto fail; } - memset(cam->control_buffer, 0, 2); /* Allocate 8 bytes of memory for USB data transfers to the FSB */ - if (!(cam->data_buffer = kmalloc(8, GFP_KERNEL))) { + if (!(cam->data_buffer = kzalloc(8, GFP_KERNEL))) { DBG(1, "Couldn't allocate memory for data " "transfers to the FSB") err = -ENOMEM; goto fail; } - memset(cam->data_buffer, 0, 8); /* Register the V4L device */ cam->v4ldev = video_device_alloc(); @@ -3583,9 +3585,9 @@ w9968cf_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) w9968cf_configure_camera(cam, udev, mod_id, dev_nr); /* Add a new entry into the list of V4L registered devices */ - down(&w9968cf_devlist_sem); + mutex_lock(&w9968cf_devlist_mutex); list_add(&cam->v4llist, &w9968cf_dev_list); - up(&w9968cf_devlist_sem); + mutex_unlock(&w9968cf_devlist_mutex); dev_nr = (dev_nr < W9968CF_MAX_DEVICES-1) ? dev_nr+1 : 0; w9968cf_turn_on_led(cam); @@ -3593,7 +3595,7 @@ w9968cf_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) w9968cf_i2c_init(cam); usb_set_intfdata(intf, cam); - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); return 0; fail: /* Free unused memory */ @@ -3601,7 +3603,7 @@ fail: /* Free unused memory */ kfree(cam->data_buffer); if (cam->v4ldev) video_device_release(cam->v4ldev); - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); kfree(cam); return err; } @@ -3616,7 +3618,7 @@ static void w9968cf_usb_disconnect(struct usb_interface* intf) if (cam) { /* Prevent concurrent accesses to data */ - down(&cam->dev_sem); + mutex_lock(&cam->dev_mutex); cam->disconnected = 1; @@ -3635,7 +3637,7 @@ static void w9968cf_usb_disconnect(struct usb_interface* intf) } else w9968cf_release_resources(cam); - up(&cam->dev_sem); + mutex_unlock(&cam->dev_mutex); if (!cam->users) kfree(cam); diff --git a/drivers/usb/media/w9968cf.h b/drivers/usb/media/w9968cf.h index 47a6ff7..a87be71 100644 --- a/drivers/usb/media/w9968cf.h +++ b/drivers/usb/media/w9968cf.h @@ -32,7 +32,7 @@ #include <linux/param.h> #include <linux/types.h> #include <linux/rwsem.h> -#include <asm/semaphore.h> +#include <linux/mutex.h> #include <media/ovcamchip.h> @@ -194,14 +194,6 @@ enum w9968cf_vpp_flag { VPP_UYVY_TO_RGBX = 0x08, }; -static struct w9968cf_vpp_t* w9968cf_vpp; -static DECLARE_WAIT_QUEUE_HEAD(w9968cf_vppmod_wait); - -static LIST_HEAD(w9968cf_dev_list); /* head of V4L registered cameras list */ -static DECLARE_MUTEX(w9968cf_devlist_sem); /* semaphore for list traversal */ - -static DECLARE_RWSEM(w9968cf_disconnect); /* prevent races with open() */ - /* Main device driver structure */ struct w9968cf_device { struct device dev; /* device structure */ @@ -277,8 +269,8 @@ struct w9968cf_device { struct i2c_client* sensor_client; /* Locks */ - struct semaphore dev_sem, /* for probe, disconnect,open and close */ - fileop_sem; /* for read and ioctl */ + struct mutex dev_mutex, /* for probe, disconnect,open and close */ + fileop_mutex; /* for read and ioctl */ spinlock_t urb_lock, /* for submit_urb() and unlink_urb() */ flist_lock; /* for requested frame list accesses */ wait_queue_head_t open, wait_queue; diff --git a/drivers/usb/media/zc0301.h b/drivers/usb/media/zc0301.h new file mode 100644 index 0000000..8e06551 --- /dev/null +++ b/drivers/usb/media/zc0301.h @@ -0,0 +1,192 @@ +/*************************************************************************** + * V4L2 driver for ZC0301 Image Processor and Control Chip * + * * + * Copyright (C) 2006 by Luca Risolia <luca.risolia@studio.unibo.it> * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the Free Software * + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * + ***************************************************************************/ + +#ifndef _ZC0301_H_ +#define _ZC0301_H_ + +#include <linux/version.h> +#include <linux/usb.h> +#include <linux/videodev2.h> +#include <media/v4l2-common.h> +#include <linux/device.h> +#include <linux/list.h> +#include <linux/spinlock.h> +#include <linux/time.h> +#include <linux/wait.h> +#include <linux/types.h> +#include <linux/param.h> +#include <linux/mutex.h> +#include <linux/rwsem.h> +#include <linux/stddef.h> +#include <linux/string.h> + +#include "zc0301_sensor.h" + +/*****************************************************************************/ + +#define ZC0301_DEBUG +#define ZC0301_DEBUG_LEVEL 2 +#define ZC0301_MAX_DEVICES 64 +#define ZC0301_FORCE_MUNMAP 0 +#define ZC0301_MAX_FRAMES 32 +#define ZC0301_COMPRESSION_QUALITY 0 +#define ZC0301_URBS 2 +#define ZC0301_ISO_PACKETS 7 +#define ZC0301_ALTERNATE_SETTING 7 +#define ZC0301_URB_TIMEOUT msecs_to_jiffies(2 * ZC0301_ISO_PACKETS) +#define ZC0301_CTRL_TIMEOUT 100 +#define ZC0301_FRAME_TIMEOUT 2 + +/*****************************************************************************/ + +ZC0301_ID_TABLE +ZC0301_SENSOR_TABLE + +enum zc0301_frame_state { + F_UNUSED, + F_QUEUED, + F_GRABBING, + F_DONE, + F_ERROR, +}; + +struct zc0301_frame_t { + void* bufmem; + struct v4l2_buffer buf; + enum zc0301_frame_state state; + struct list_head frame; + unsigned long vma_use_count; +}; + +enum zc0301_dev_state { + DEV_INITIALIZED = 0x01, + DEV_DISCONNECTED = 0x02, + DEV_MISCONFIGURED = 0x04, +}; + +enum zc0301_io_method { + IO_NONE, + IO_READ, + IO_MMAP, +}; + +enum zc0301_stream_state { + STREAM_OFF, + STREAM_INTERRUPT, + STREAM_ON, +}; + +struct zc0301_module_param { + u8 force_munmap; + u16 frame_timeout; +}; + +static DECLARE_RWSEM(zc0301_disconnect); + +struct zc0301_device { + struct video_device* v4ldev; + + struct zc0301_sensor sensor; + + struct usb_device* usbdev; + struct urb* urb[ZC0301_URBS]; + void* transfer_buffer[ZC0301_URBS]; + u8* control_buffer; + + struct zc0301_frame_t *frame_current, frame[ZC0301_MAX_FRAMES]; + struct list_head inqueue, outqueue; + u32 frame_count, nbuffers, nreadbuffers; + + enum zc0301_io_method io; + enum zc0301_stream_state stream; + + struct v4l2_jpegcompression compression; + + struct zc0301_module_param module_param; + + enum zc0301_dev_state state; + u8 users; + + struct mutex dev_mutex, fileop_mutex; + spinlock_t queue_lock; + wait_queue_head_t open, wait_frame, wait_stream; +}; + +/*****************************************************************************/ + +struct zc0301_device* +zc0301_match_id(struct zc0301_device* cam, const struct usb_device_id *id) +{ + return usb_match_id(usb_ifnum_to_if(cam->usbdev, 0), id) ? cam : NULL; +} + +void +zc0301_attach_sensor(struct zc0301_device* cam, struct zc0301_sensor* sensor) +{ + memcpy(&cam->sensor, sensor, sizeof(struct zc0301_sensor)); +} + +/*****************************************************************************/ + +#undef DBG +#undef KDBG +#ifdef ZC0301_DEBUG +# define DBG(level, fmt, args...) \ +do { \ + if (debug >= (level)) { \ + if ((level) == 1) \ + dev_err(&cam->usbdev->dev, fmt "\n", ## args); \ + else if ((level) == 2) \ + dev_info(&cam->usbdev->dev, fmt "\n", ## args); \ + else if ((level) >= 3) \ + dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \ + __FUNCTION__, __LINE__ , ## args); \ + } \ +} while (0) +# define KDBG(level, fmt, args...) \ +do { \ + if (debug >= (level)) { \ + if ((level) == 1 || (level) == 2) \ + pr_info("zc0301: " fmt "\n", ## args); \ + else if ((level) == 3) \ + pr_debug("zc0301: [%s:%d] " fmt "\n", __FUNCTION__, \ + __LINE__ , ## args); \ + } \ +} while (0) +# define V4LDBG(level, name, cmd) \ +do { \ + if (debug >= (level)) \ + v4l_print_ioctl(name, cmd); \ +} while (0) +#else +# define DBG(level, fmt, args...) do {;} while(0) +# define KDBG(level, fmt, args...) do {;} while(0) +# define V4LDBG(level, name, cmd) do {;} while(0) +#endif + +#undef PDBG +#define PDBG(fmt, args...) \ +dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \ + __FUNCTION__, __LINE__ , ## args) + +#undef PDBGG +#define PDBGG(fmt, args...) do {;} while(0) /* placeholder */ + +#endif /* _ZC0301_H_ */ diff --git a/drivers/usb/media/zc0301_core.c b/drivers/usb/media/zc0301_core.c new file mode 100644 index 0000000..4036c626 --- /dev/null +++ b/drivers/usb/media/zc0301_core.c @@ -0,0 +1,2055 @@ +/*************************************************************************** + * Video4Linux2 driver for ZC0301 Image Processor and Control Chip * + * * + * Copyright (C) 2006 by Luca Risolia <luca.risolia@studio.unibo.it> * + * * + * Informations about the chip internals needed to enable the I2C protocol * + * have been taken from the documentation of the ZC030x Video4Linux1 * + * driver written by Andrew Birkett <andy@nobugs.org> * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the Free Software * + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * + ***************************************************************************/ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/moduleparam.h> +#include <linux/errno.h> +#include <linux/slab.h> +#include <linux/device.h> +#include <linux/fs.h> +#include <linux/delay.h> +#include <linux/compiler.h> +#include <linux/ioctl.h> +#include <linux/poll.h> +#include <linux/stat.h> +#include <linux/mm.h> +#include <linux/vmalloc.h> +#include <linux/page-flags.h> +#include <linux/byteorder/generic.h> +#include <asm/page.h> +#include <asm/uaccess.h> + +#include "zc0301.h" + +/*****************************************************************************/ + +#define ZC0301_MODULE_NAME "V4L2 driver for ZC0301 " \ + "Image Processor and Control Chip" +#define ZC0301_MODULE_AUTHOR "(C) 2006 Luca Risolia" +#define ZC0301_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>" +#define ZC0301_MODULE_LICENSE "GPL" +#define ZC0301_MODULE_VERSION "1:1.03" +#define ZC0301_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 3) + +/*****************************************************************************/ + +MODULE_DEVICE_TABLE(usb, zc0301_id_table); + +MODULE_AUTHOR(ZC0301_MODULE_AUTHOR " " ZC0301_AUTHOR_EMAIL); +MODULE_DESCRIPTION(ZC0301_MODULE_NAME); +MODULE_VERSION(ZC0301_MODULE_VERSION); +MODULE_LICENSE(ZC0301_MODULE_LICENSE); + +static short video_nr[] = {[0 ... ZC0301_MAX_DEVICES-1] = -1}; +module_param_array(video_nr, short, NULL, 0444); +MODULE_PARM_DESC(video_nr, + "\n<-1|n[,...]> Specify V4L2 minor mode number." + "\n -1 = use next available (default)" + "\n n = use minor number n (integer >= 0)" + "\nYou can specify up to " + __MODULE_STRING(ZC0301_MAX_DEVICES) " cameras this way." + "\nFor example:" + "\nvideo_nr=-1,2,-1 would assign minor number 2 to" + "\nthe second registered camera and use auto for the first" + "\none and for every other camera." + "\n"); + +static short force_munmap[] = {[0 ... ZC0301_MAX_DEVICES-1] = + ZC0301_FORCE_MUNMAP}; +module_param_array(force_munmap, bool, NULL, 0444); +MODULE_PARM_DESC(force_munmap, + "\n<0|1[,...]> Force the application to unmap previously" + "\nmapped buffer memory before calling any VIDIOC_S_CROP or" + "\nVIDIOC_S_FMT ioctl's. Not all the applications support" + "\nthis feature. This parameter is specific for each" + "\ndetected camera." + "\n 0 = do not force memory unmapping" + "\n 1 = force memory unmapping (save memory)" + "\nDefault value is "__MODULE_STRING(SN9C102_FORCE_MUNMAP)"." + "\n"); + +static unsigned int frame_timeout[] = {[0 ... ZC0301_MAX_DEVICES-1] = + ZC0301_FRAME_TIMEOUT}; +module_param_array(frame_timeout, uint, NULL, 0644); +MODULE_PARM_DESC(frame_timeout, + "\n<n[,...]> Timeout for a video frame in seconds." + "\nThis parameter is specific for each detected camera." + "\nDefault value is "__MODULE_STRING(ZC0301_FRAME_TIMEOUT)"." + "\n"); + +#ifdef ZC0301_DEBUG +static unsigned short debug = ZC0301_DEBUG_LEVEL; +module_param(debug, ushort, 0644); +MODULE_PARM_DESC(debug, + "\n<n> Debugging information level, from 0 to 3:" + "\n0 = none (use carefully)" + "\n1 = critical errors" + "\n2 = significant informations" + "\n3 = more verbose messages" + "\nLevel 3 is useful for testing only, when only " + "one device is used." + "\nDefault value is "__MODULE_STRING(ZC0301_DEBUG_LEVEL)"." + "\n"); +#endif + +/*****************************************************************************/ + +static u32 +zc0301_request_buffers(struct zc0301_device* cam, u32 count, + enum zc0301_io_method io) +{ + struct v4l2_pix_format* p = &(cam->sensor.pix_format); + struct v4l2_rect* r = &(cam->sensor.cropcap.bounds); + const size_t imagesize = cam->module_param.force_munmap || + io == IO_READ ? + (p->width * p->height * p->priv) / 8 : + (r->width * r->height * p->priv) / 8; + void* buff = NULL; + u32 i; + + if (count > ZC0301_MAX_FRAMES) + count = ZC0301_MAX_FRAMES; + + cam->nbuffers = count; + while (cam->nbuffers > 0) { + if ((buff = vmalloc_32(cam->nbuffers * PAGE_ALIGN(imagesize)))) + break; + cam->nbuffers--; + } + + for (i = 0; i < cam->nbuffers; i++) { + cam->frame[i].bufmem = buff + i*PAGE_ALIGN(imagesize); + cam->frame[i].buf.index = i; + cam->frame[i].buf.m.offset = i*PAGE_ALIGN(imagesize); + cam->frame[i].buf.length = imagesize; + cam->frame[i].buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + cam->frame[i].buf.sequence = 0; + cam->frame[i].buf.field = V4L2_FIELD_NONE; + cam->frame[i].buf.memory = V4L2_MEMORY_MMAP; + cam->frame[i].buf.flags = 0; + } + + return cam->nbuffers; +} + + +static void zc0301_release_buffers(struct zc0301_device* cam) +{ + if (cam->nbuffers) { + vfree(cam->frame[0].bufmem); + cam->nbuffers = 0; + } + cam->frame_current = NULL; +} + + +static void zc0301_empty_framequeues(struct zc0301_device* cam) +{ + u32 i; + + INIT_LIST_HEAD(&cam->inqueue); + INIT_LIST_HEAD(&cam->outqueue); + + for (i = 0; i < ZC0301_MAX_FRAMES; i++) { + cam->frame[i].state = F_UNUSED; + cam->frame[i].buf.bytesused = 0; + } +} + + +static void zc0301_requeue_outqueue(struct zc0301_device* cam) +{ + struct zc0301_frame_t *i; + + list_for_each_entry(i, &cam->outqueue, frame) { + i->state = F_QUEUED; + list_add(&i->frame, &cam->inqueue); + } + + INIT_LIST_HEAD(&cam->outqueue); +} + + +static void zc0301_queue_unusedframes(struct zc0301_device* cam) +{ + unsigned long lock_flags; + u32 i; + + for (i = 0; i < cam->nbuffers; i++) + if (cam->frame[i].state == F_UNUSED) { + cam->frame[i].state = F_QUEUED; + spin_lock_irqsave(&cam->queue_lock, lock_flags); + list_add_tail(&cam->frame[i].frame, &cam->inqueue); + spin_unlock_irqrestore(&cam->queue_lock, lock_flags); + } +} + +/*****************************************************************************/ + +int zc0301_write_reg(struct zc0301_device* cam, u16 index, u16 value) +{ + struct usb_device* udev = cam->usbdev; + int res; + + res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0xa0, 0x40, + value, index, NULL, 0, ZC0301_CTRL_TIMEOUT); + if (res < 0) { + DBG(3, "Failed to write a register (index 0x%04X, " + "value 0x%02X, error %d)",index, value, res); + return -1; + } + + return 0; +} + + +int zc0301_read_reg(struct zc0301_device* cam, u16 index) +{ + struct usb_device* udev = cam->usbdev; + u8* buff = cam->control_buffer; + int res; + + res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0xa1, 0xc0, + 0x0001, index, buff, 1, ZC0301_CTRL_TIMEOUT); + if (res < 0) + DBG(3, "Failed to read a register (index 0x%04X, error %d)", + index, res); + + PDBGG("Read: index 0x%04X, value: 0x%04X", index, (int)(*buff)); + + return (res >= 0) ? (int)(*buff) : -1; +} + + +int zc0301_i2c_read(struct zc0301_device* cam, u16 address, u8 length) +{ + int err = 0, res, r0, r1; + + err += zc0301_write_reg(cam, 0x0092, address); + err += zc0301_write_reg(cam, 0x0090, 0x02); + + msleep(1); + + res = zc0301_read_reg(cam, 0x0091); + if (res < 0) + err += res; + r0 = zc0301_read_reg(cam, 0x0095); + if (r0 < 0) + err += r0; + r1 = zc0301_read_reg(cam, 0x0096); + if (r1 < 0) + err += r1; + + res = (length <= 1) ? r0 : r0 | (r1 << 8); + + if (err) + DBG(3, "I2C read failed at address 0x%04X, value: 0x%04X", + address, res); + + + PDBGG("I2C read: address 0x%04X, value: 0x%04X", address, res); + + return err ? -1 : res; +} + + +int zc0301_i2c_write(struct zc0301_device* cam, u16 address, u16 value) +{ + int err = 0, res; + + err += zc0301_write_reg(cam, 0x0092, address); + err += zc0301_write_reg(cam, 0x0093, value & 0xff); + err += zc0301_write_reg(cam, 0x0094, value >> 8); + err += zc0301_write_reg(cam, 0x0090, 0x01); + + msleep(1); + + res = zc0301_read_reg(cam, 0x0091); + if (res < 0) + err += res; + + if (err) + DBG(3, "I2C write failed at address 0x%04X, value: 0x%04X", + address, value); + + PDBGG("I2C write: address 0x%04X, value: 0x%04X", address, value); + + return err ? -1 : 0; +} + +/*****************************************************************************/ + +static void zc0301_urb_complete(struct urb *urb, struct pt_regs* regs) +{ + struct zc0301_device* cam = urb->context; + struct zc0301_frame_t** f; + size_t imagesize; + u8 i; + int err = 0; + + if (urb->status == -ENOENT) + return; + + f = &cam->frame_current; + + if (cam->stream == STREAM_INTERRUPT) { + cam->stream = STREAM_OFF; + if ((*f)) + (*f)->state = F_QUEUED; + DBG(3, "Stream interrupted"); + wake_up(&cam->wait_stream); + } + + if (cam->state & DEV_DISCONNECTED) + return; + + if (cam->state & DEV_MISCONFIGURED) { + wake_up_interruptible(&cam->wait_frame); + return; + } + + if (cam->stream == STREAM_OFF || list_empty(&cam->inqueue)) + goto resubmit_urb; + + if (!(*f)) + (*f) = list_entry(cam->inqueue.next, struct zc0301_frame_t, + frame); + + imagesize = (cam->sensor.pix_format.width * + cam->sensor.pix_format.height * + cam->sensor.pix_format.priv) / 8; + + for (i = 0; i < urb->number_of_packets; i++) { + unsigned int len, status; + void *pos; + u16* soi; + u8 sof; + + len = urb->iso_frame_desc[i].actual_length; + status = urb->iso_frame_desc[i].status; + pos = urb->iso_frame_desc[i].offset + urb->transfer_buffer; + + if (status) { + DBG(3, "Error in isochronous frame"); + (*f)->state = F_ERROR; + continue; + } + + sof = (*(soi = pos) == 0xd8ff); + + PDBGG("Isochrnous frame: length %u, #%u i,", len, i); + + if ((*f)->state == F_QUEUED || (*f)->state == F_ERROR) +start_of_frame: + if (sof) { + (*f)->state = F_GRABBING; + (*f)->buf.bytesused = 0; + do_gettimeofday(&(*f)->buf.timestamp); + DBG(3, "SOF detected: new video frame"); + } + + if ((*f)->state == F_GRABBING) { + if (sof && (*f)->buf.bytesused) + goto end_of_frame; + + if ((*f)->buf.bytesused + len > imagesize) { + DBG(3, "Video frame size exceeded"); + (*f)->state = F_ERROR; + continue; + } + + memcpy((*f)->bufmem+(*f)->buf.bytesused, pos, len); + (*f)->buf.bytesused += len; + + if ((*f)->buf.bytesused == imagesize) { + u32 b; +end_of_frame: + b = (*f)->buf.bytesused; + (*f)->state = F_DONE; + (*f)->buf.sequence= ++cam->frame_count; + spin_lock(&cam->queue_lock); + list_move_tail(&(*f)->frame, &cam->outqueue); + if (!list_empty(&cam->inqueue)) + (*f) = list_entry(cam->inqueue.next, + struct zc0301_frame_t, + frame); + else + (*f) = NULL; + spin_unlock(&cam->queue_lock); + DBG(3, "Video frame captured: : %lu bytes", + (unsigned long)(b)); + + if (!(*f)) + goto resubmit_urb; + + if (sof) + goto start_of_frame; + } + } + } + +resubmit_urb: + urb->dev = cam->usbdev; + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err < 0 && err != -EPERM) { + cam->state |= DEV_MISCONFIGURED; + DBG(1, "usb_submit_urb() failed"); + } + + wake_up_interruptible(&cam->wait_frame); +} + + +static int zc0301_start_transfer(struct zc0301_device* cam) +{ + struct usb_device *udev = cam->usbdev; + struct urb* urb; + const unsigned int wMaxPacketSize[] = {0, 128, 192, 256, 384, + 512, 768, 1023}; + const unsigned int psz = wMaxPacketSize[ZC0301_ALTERNATE_SETTING]; + s8 i, j; + int err = 0; + + for (i = 0; i < ZC0301_URBS; i++) { + cam->transfer_buffer[i] = kzalloc(ZC0301_ISO_PACKETS * psz, + GFP_KERNEL); + if (!cam->transfer_buffer[i]) { + err = -ENOMEM; + DBG(1, "Not enough memory"); + goto free_buffers; + } + } + + for (i = 0; i < ZC0301_URBS; i++) { + urb = usb_alloc_urb(ZC0301_ISO_PACKETS, GFP_KERNEL); + cam->urb[i] = urb; + if (!urb) { + err = -ENOMEM; + DBG(1, "usb_alloc_urb() failed"); + goto free_urbs; + } + urb->dev = udev; + urb->context = cam; + urb->pipe = usb_rcvisocpipe(udev, 1); + urb->transfer_flags = URB_ISO_ASAP; + urb->number_of_packets = ZC0301_ISO_PACKETS; + urb->complete = zc0301_urb_complete; + urb->transfer_buffer = cam->transfer_buffer[i]; + urb->transfer_buffer_length = psz * ZC0301_ISO_PACKETS; + urb->interval = 1; + for (j = 0; j < ZC0301_ISO_PACKETS; j++) { + urb->iso_frame_desc[j].offset = psz * j; + urb->iso_frame_desc[j].length = psz; + } + } + + err = usb_set_interface(udev, 0, ZC0301_ALTERNATE_SETTING); + if (err) { + DBG(1, "usb_set_interface() failed"); + goto free_urbs; + } + + cam->frame_current = NULL; + + for (i = 0; i < ZC0301_URBS; i++) { + err = usb_submit_urb(cam->urb[i], GFP_KERNEL); + if (err) { + for (j = i-1; j >= 0; j--) + usb_kill_urb(cam->urb[j]); + DBG(1, "usb_submit_urb() failed, error %d", err); + goto free_urbs; + } + } + + return 0; + +free_urbs: + for (i = 0; (i < ZC0301_URBS) && cam->urb[i]; i++) + usb_free_urb(cam->urb[i]); + +free_buffers: + for (i = 0; (i < ZC0301_URBS) && cam->transfer_buffer[i]; i++) + kfree(cam->transfer_buffer[i]); + + return err; +} + + +static int zc0301_stop_transfer(struct zc0301_device* cam) +{ + struct usb_device *udev = cam->usbdev; + s8 i; + int err = 0; + + if (cam->state & DEV_DISCONNECTED) + return 0; + + for (i = ZC0301_URBS-1; i >= 0; i--) { + usb_kill_urb(cam->urb[i]); + usb_free_urb(cam->urb[i]); + kfree(cam->transfer_buffer[i]); + } + + err = usb_set_interface(udev, 0, 0); /* 0 Mb/s */ + if (err) + DBG(3, "usb_set_interface() failed"); + + return err; +} + + +static int zc0301_stream_interrupt(struct zc0301_device* cam) +{ + long timeout; + + cam->stream = STREAM_INTERRUPT; + timeout = wait_event_timeout(cam->wait_stream, + (cam->stream == STREAM_OFF) || + (cam->state & DEV_DISCONNECTED), + ZC0301_URB_TIMEOUT); + if (cam->state & DEV_DISCONNECTED) + return -ENODEV; + else if (cam->stream != STREAM_OFF) { + cam->state |= DEV_MISCONFIGURED; + DBG(1, "URB timeout reached. The camera is misconfigured. To " + "use it, close and open /dev/video%d again.", + cam->v4ldev->minor); + return -EIO; + } + + return 0; +} + +/*****************************************************************************/ + +static int +zc0301_set_compression(struct zc0301_device* cam, + struct v4l2_jpegcompression* compression) +{ + int r, err = 0; + + if ((r = zc0301_read_reg(cam, 0x0008)) < 0) + err += r; + err += zc0301_write_reg(cam, 0x0008, r | 0x11 | compression->quality); + + return err ? -EIO : 0; +} + + +static int zc0301_init(struct zc0301_device* cam) +{ + struct zc0301_sensor* s = &cam->sensor; + struct v4l2_control ctrl; + struct v4l2_queryctrl *qctrl; + struct v4l2_rect* rect; + u8 i = 0; + int err = 0; + + if (!(cam->state & DEV_INITIALIZED)) { + init_waitqueue_head(&cam->open); + qctrl = s->qctrl; + rect = &(s->cropcap.defrect); + cam->compression.quality = ZC0301_COMPRESSION_QUALITY; + } else { /* use current values */ + qctrl = s->_qctrl; + rect = &(s->_rect); + } + + if (s->init) { + err = s->init(cam); + if (err) { + DBG(3, "Sensor initialization failed"); + return err; + } + } + + if ((err = zc0301_set_compression(cam, &cam->compression))) { + DBG(3, "set_compression() failed"); + return err; + } + + if (s->set_crop) + if ((err = s->set_crop(cam, rect))) { + DBG(3, "set_crop() failed"); + return err; + } + + if (s->set_ctrl) { + for (i = 0; i < ARRAY_SIZE(s->qctrl); i++) + if (s->qctrl[i].id != 0 && + !(s->qctrl[i].flags & V4L2_CTRL_FLAG_DISABLED)) { + ctrl.id = s->qctrl[i].id; + ctrl.value = qctrl[i].default_value; + err = s->set_ctrl(cam, &ctrl); + if (err) { + DBG(3, "Set %s control failed", + s->qctrl[i].name); + return err; + } + DBG(3, "Image sensor supports '%s' control", + s->qctrl[i].name); + } + } + + if (!(cam->state & DEV_INITIALIZED)) { + mutex_init(&cam->fileop_mutex); + spin_lock_init(&cam->queue_lock); + init_waitqueue_head(&cam->wait_frame); + init_waitqueue_head(&cam->wait_stream); + cam->nreadbuffers = 2; + memcpy(s->_qctrl, s->qctrl, sizeof(s->qctrl)); + memcpy(&(s->_rect), &(s->cropcap.defrect), + sizeof(struct v4l2_rect)); + cam->state |= DEV_INITIALIZED; + } + + DBG(2, "Initialization succeeded"); + return 0; +} + + +static void zc0301_release_resources(struct zc0301_device* cam) +{ + DBG(2, "V4L2 device /dev/video%d deregistered", cam->v4ldev->minor); + video_set_drvdata(cam->v4ldev, NULL); + video_unregister_device(cam->v4ldev); + kfree(cam->control_buffer); +} + +/*****************************************************************************/ + +static int zc0301_open(struct inode* inode, struct file* filp) +{ + struct zc0301_device* cam; + int err = 0; + + /* + This is the only safe way to prevent race conditions with + disconnect + */ + if (!down_read_trylock(&zc0301_disconnect)) + return -ERESTARTSYS; + + cam = video_get_drvdata(video_devdata(filp)); + + if (mutex_lock_interruptible(&cam->dev_mutex)) { + up_read(&zc0301_disconnect); + return -ERESTARTSYS; + } + + if (cam->users) { + DBG(2, "Device /dev/video%d is busy...", cam->v4ldev->minor); + if ((filp->f_flags & O_NONBLOCK) || + (filp->f_flags & O_NDELAY)) { + err = -EWOULDBLOCK; + goto out; + } + mutex_unlock(&cam->dev_mutex); + err = wait_event_interruptible_exclusive(cam->open, + cam->state & DEV_DISCONNECTED + || !cam->users); + if (err) { + up_read(&zc0301_disconnect); + return err; + } + if (cam->state & DEV_DISCONNECTED) { + up_read(&zc0301_disconnect); + return -ENODEV; + } + mutex_lock(&cam->dev_mutex); + } + + + if (cam->state & DEV_MISCONFIGURED) { + err = zc0301_init(cam); + if (err) { + DBG(1, "Initialization failed again. " + "I will retry on next open()."); + goto out; + } + cam->state &= ~DEV_MISCONFIGURED; + } + + if ((err = zc0301_start_transfer(cam))) + goto out; + + filp->private_data = cam; + cam->users++; + cam->io = IO_NONE; + cam->stream = STREAM_OFF; + cam->nbuffers = 0; + cam->frame_count = 0; + zc0301_empty_framequeues(cam); + + DBG(3, "Video device /dev/video%d is open", cam->v4ldev->minor); + +out: + mutex_unlock(&cam->dev_mutex); + up_read(&zc0301_disconnect); + return err; +} + + +static int zc0301_release(struct inode* inode, struct file* filp) +{ + struct zc0301_device* cam = video_get_drvdata(video_devdata(filp)); + + mutex_lock(&cam->dev_mutex); /* prevent disconnect() to be called */ + + zc0301_stop_transfer(cam); + + zc0301_release_buffers(cam); + + if (cam->state & DEV_DISCONNECTED) { + zc0301_release_resources(cam); + usb_put_dev(cam->usbdev); + mutex_unlock(&cam->dev_mutex); + kfree(cam); + return 0; + } + + cam->users--; + wake_up_interruptible_nr(&cam->open, 1); + + DBG(3, "Video device /dev/video%d closed", cam->v4ldev->minor); + + mutex_unlock(&cam->dev_mutex); + + return 0; +} + + +static ssize_t +zc0301_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos) +{ + struct zc0301_device* cam = video_get_drvdata(video_devdata(filp)); + struct zc0301_frame_t* f, * i; + unsigned long lock_flags; + long timeout; + int err = 0; + + if (mutex_lock_interruptible(&cam->fileop_mutex)) + return -ERESTARTSYS; + + if (cam->state & DEV_DISCONNECTED) { + DBG(1, "Device not present"); + mutex_unlock(&cam->fileop_mutex); + return -ENODEV; + } + + if (cam->state & DEV_MISCONFIGURED) { + DBG(1, "The camera is misconfigured. Close and open it " + "again."); + mutex_unlock(&cam->fileop_mutex); + return -EIO; + } + + if (cam->io == IO_MMAP) { + DBG(3, "Close and open the device again to choose the read " + "method"); + mutex_unlock(&cam->fileop_mutex); + return -EINVAL; + } + + if (cam->io == IO_NONE) { + if (!zc0301_request_buffers(cam, cam->nreadbuffers, IO_READ)) { + DBG(1, "read() failed, not enough memory"); + mutex_unlock(&cam->fileop_mutex); + return -ENOMEM; + } + cam->io = IO_READ; + cam->stream = STREAM_ON; + } + + if (list_empty(&cam->inqueue)) { + if (!list_empty(&cam->outqueue)) + zc0301_empty_framequeues(cam); + zc0301_queue_unusedframes(cam); + } + + if (!count) { + mutex_unlock(&cam->fileop_mutex); + return 0; + } + + if (list_empty(&cam->outqueue)) { + if (filp->f_flags & O_NONBLOCK) { + mutex_unlock(&cam->fileop_mutex); + return -EAGAIN; + } + timeout = wait_event_interruptible_timeout + ( cam->wait_frame, + (!list_empty(&cam->outqueue)) || + (cam->state & DEV_DISCONNECTED) || + (cam->state & DEV_MISCONFIGURED), + cam->module_param.frame_timeout * + 1000 * msecs_to_jiffies(1) ); + if (timeout < 0) { + mutex_unlock(&cam->fileop_mutex); + return timeout; + } + if (cam->state & DEV_DISCONNECTED) { + mutex_unlock(&cam->fileop_mutex); + return -ENODEV; + } + if (!timeout || (cam->state & DEV_MISCONFIGURED)) { + mutex_unlock(&cam->fileop_mutex); + return -EIO; + } + } + + f = list_entry(cam->outqueue.prev, struct zc0301_frame_t, frame); + + if (count > f->buf.bytesused) + count = f->buf.bytesused; + + if (copy_to_user(buf, f->bufmem, count)) { + err = -EFAULT; + goto exit; + } + *f_pos += count; + +exit: + spin_lock_irqsave(&cam->queue_lock, lock_flags); + list_for_each_entry(i, &cam->outqueue, frame) + i->state = F_UNUSED; + INIT_LIST_HEAD(&cam->outqueue); + spin_unlock_irqrestore(&cam->queue_lock, lock_flags); + + zc0301_queue_unusedframes(cam); + + PDBGG("Frame #%lu, bytes read: %zu", + (unsigned long)f->buf.index, count); + + mutex_unlock(&cam->fileop_mutex); + + return err ? err : count; +} + + +static unsigned int zc0301_poll(struct file *filp, poll_table *wait) +{ + struct zc0301_device* cam = video_get_drvdata(video_devdata(filp)); + struct zc0301_frame_t* f; + unsigned long lock_flags; + unsigned int mask = 0; + + if (mutex_lock_interruptible(&cam->fileop_mutex)) + return POLLERR; + + if (cam->state & DEV_DISCONNECTED) { + DBG(1, "Device not present"); + goto error; + } + + if (cam->state & DEV_MISCONFIGURED) { + DBG(1, "The camera is misconfigured. Close and open it " + "again."); + goto error; + } + + if (cam->io == IO_NONE) { + if (!zc0301_request_buffers(cam, cam->nreadbuffers, IO_READ)) { + DBG(1, "poll() failed, not enough memory"); + goto error; + } + cam->io = IO_READ; + cam->stream = STREAM_ON; + } + + if (cam->io == IO_READ) { + spin_lock_irqsave(&cam->queue_lock, lock_flags); + list_for_each_entry(f, &cam->outqueue, frame) + f->state = F_UNUSED; + INIT_LIST_HEAD(&cam->outqueue); + spin_unlock_irqrestore(&cam->queue_lock, lock_flags); + zc0301_queue_unusedframes(cam); + } + + poll_wait(filp, &cam->wait_frame, wait); + + if (!list_empty(&cam->outqueue)) + mask |= POLLIN | POLLRDNORM; + + mutex_unlock(&cam->fileop_mutex); + + return mask; + +error: + mutex_unlock(&cam->fileop_mutex); + return POLLERR; +} + + +static void zc0301_vm_open(struct vm_area_struct* vma) +{ + struct zc0301_frame_t* f = vma->vm_private_data; + f->vma_use_count++; +} + + +static void zc0301_vm_close(struct vm_area_struct* vma) +{ + /* NOTE: buffers are not freed here */ + struct zc0301_frame_t* f = vma->vm_private_data; + f->vma_use_count--; +} + + +static struct vm_operations_struct zc0301_vm_ops = { + .open = zc0301_vm_open, + .close = zc0301_vm_close, +}; + + +static int zc0301_mmap(struct file* filp, struct vm_area_struct *vma) +{ + struct zc0301_device* cam = video_get_drvdata(video_devdata(filp)); + unsigned long size = vma->vm_end - vma->vm_start, + start = vma->vm_start; + void *pos; + u32 i; + + if (mutex_lock_interruptible(&cam->fileop_mutex)) + return -ERESTARTSYS; + + if (cam->state & DEV_DISCONNECTED) { + DBG(1, "Device not present"); + mutex_unlock(&cam->fileop_mutex); + return -ENODEV; + } + + if (cam->state & DEV_MISCONFIGURED) { + DBG(1, "The camera is misconfigured. Close and open it " + "again."); + mutex_unlock(&cam->fileop_mutex); + return -EIO; + } + + if (cam->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) || + size != PAGE_ALIGN(cam->frame[0].buf.length)) { + mutex_unlock(&cam->fileop_mutex); + return -EINVAL; + } + + for (i = 0; i < cam->nbuffers; i++) { + if ((cam->frame[i].buf.m.offset>>PAGE_SHIFT) == vma->vm_pgoff) + break; + } + if (i == cam->nbuffers) { + mutex_unlock(&cam->fileop_mutex); + return -EINVAL; + } + + vma->vm_flags |= VM_IO; + vma->vm_flags |= VM_RESERVED; + + pos = cam->frame[i].bufmem; + while (size > 0) { /* size is page-aligned */ + if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { + mutex_unlock(&cam->fileop_mutex); + return -EAGAIN; + } + start += PAGE_SIZE; + pos += PAGE_SIZE; + size -= PAGE_SIZE; + } + + vma->vm_ops = &zc0301_vm_ops; + vma->vm_private_data = &cam->frame[i]; + + zc0301_vm_open(vma); + + mutex_unlock(&cam->fileop_mutex); + + return 0; +} + +/*****************************************************************************/ + +static int +zc0301_vidioc_querycap(struct zc0301_device* cam, void __user * arg) +{ + struct v4l2_capability cap = { + .driver = "zc0301", + .version = ZC0301_MODULE_VERSION_CODE, + .capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | + V4L2_CAP_STREAMING, + }; + + strlcpy(cap.card, cam->v4ldev->name, sizeof(cap.card)); + if (usb_make_path(cam->usbdev, cap.bus_info, sizeof(cap.bus_info)) < 0) + strlcpy(cap.bus_info, cam->usbdev->dev.bus_id, + sizeof(cap.bus_info)); + + if (copy_to_user(arg, &cap, sizeof(cap))) + return -EFAULT; + + return 0; +} + + +static int +zc0301_vidioc_enuminput(struct zc0301_device* cam, void __user * arg) +{ + struct v4l2_input i; + + if (copy_from_user(&i, arg, sizeof(i))) + return -EFAULT; + + if (i.index) + return -EINVAL; + + memset(&i, 0, sizeof(i)); + strcpy(i.name, "Camera"); + i.type = V4L2_INPUT_TYPE_CAMERA; + + if (copy_to_user(arg, &i, sizeof(i))) + return -EFAULT; + + return 0; +} + + +static int +zc0301_vidioc_g_input(struct zc0301_device* cam, void __user * arg) +{ + int index = 0; + + if (copy_to_user(arg, &index, sizeof(index))) + return -EFAULT; + + return 0; +} + + +static int +zc0301_vidioc_s_input(struct zc0301_device* cam, void __user * arg) +{ + int index; + + if (copy_from_user(&index, arg, sizeof(index))) + return -EFAULT; + + if (index != 0) + return -EINVAL; + + return 0; +} + + +static int +zc0301_vidioc_query_ctrl(struct zc0301_device* cam, void __user * arg) +{ + struct zc0301_sensor* s = &cam->sensor; + struct v4l2_queryctrl qc; + u8 i; + + if (copy_from_user(&qc, arg, sizeof(qc))) + return -EFAULT; + + for (i = 0; i < ARRAY_SIZE(s->qctrl); i++) + if (qc.id && qc.id == s->qctrl[i].id) { + memcpy(&qc, &(s->qctrl[i]), sizeof(qc)); + if (copy_to_user(arg, &qc, sizeof(qc))) + return -EFAULT; + return 0; + } + + return -EINVAL; +} + + +static int +zc0301_vidioc_g_ctrl(struct zc0301_device* cam, void __user * arg) +{ + struct zc0301_sensor* s = &cam->sensor; + struct v4l2_control ctrl; + int err = 0; + u8 i; + + if (!s->get_ctrl && !s->set_ctrl) + return -EINVAL; + + if (copy_from_user(&ctrl, arg, sizeof(ctrl))) + return -EFAULT; + + if (!s->get_ctrl) { + for (i = 0; i < ARRAY_SIZE(s->qctrl); i++) + if (ctrl.id == s->qctrl[i].id) { + ctrl.value = s->_qctrl[i].default_value; + goto exit; + } + return -EINVAL; + } else + err = s->get_ctrl(cam, &ctrl); + +exit: + if (copy_to_user(arg, &ctrl, sizeof(ctrl))) + return -EFAULT; + + return err; +} + + +static int +zc0301_vidioc_s_ctrl(struct zc0301_device* cam, void __user * arg) +{ + struct zc0301_sensor* s = &cam->sensor; + struct v4l2_control ctrl; + u8 i; + int err = 0; + + if (!s->set_ctrl) + return -EINVAL; + + if (copy_from_user(&ctrl, arg, sizeof(ctrl))) + return -EFAULT; + + for (i = 0; i < ARRAY_SIZE(s->qctrl); i++) + if (ctrl.id == s->qctrl[i].id) { + if (s->qctrl[i].flags & V4L2_CTRL_FLAG_DISABLED) + return -EINVAL; + if (ctrl.value < s->qctrl[i].minimum || + ctrl.value > s->qctrl[i].maximum) + return -ERANGE; + ctrl.value -= ctrl.value % s->qctrl[i].step; + break; + } + + if ((err = s->set_ctrl(cam, &ctrl))) + return err; + + s->_qctrl[i].default_value = ctrl.value; + + return 0; +} + + +static int +zc0301_vidioc_cropcap(struct zc0301_device* cam, void __user * arg) +{ + struct v4l2_cropcap* cc = &(cam->sensor.cropcap); + + cc->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + cc->pixelaspect.numerator = 1; + cc->pixelaspect.denominator = 1; + + if (copy_to_user(arg, cc, sizeof(*cc))) + return -EFAULT; + + return 0; +} + + +static int +zc0301_vidioc_g_crop(struct zc0301_device* cam, void __user * arg) +{ + struct zc0301_sensor* s = &cam->sensor; + struct v4l2_crop crop = { + .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, + }; + + memcpy(&(crop.c), &(s->_rect), sizeof(struct v4l2_rect)); + + if (copy_to_user(arg, &crop, sizeof(crop))) + return -EFAULT; + + return 0; +} + + +static int +zc0301_vidioc_s_crop(struct zc0301_device* cam, void __user * arg) +{ + struct zc0301_sensor* s = &cam->sensor; + struct v4l2_crop crop; + struct v4l2_rect* rect; + struct v4l2_rect* bounds = &(s->cropcap.bounds); + const enum zc0301_stream_state stream = cam->stream; + const u32 nbuffers = cam->nbuffers; + u32 i; + int err = 0; + + if (copy_from_user(&crop, arg, sizeof(crop))) + return -EFAULT; + + rect = &(crop.c); + + if (crop.type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + if (cam->module_param.force_munmap) + for (i = 0; i < cam->nbuffers; i++) + if (cam->frame[i].vma_use_count) { + DBG(3, "VIDIOC_S_CROP failed. " + "Unmap the buffers first."); + return -EINVAL; + } + + if (!s->set_crop) { + memcpy(rect, &(s->_rect), sizeof(*rect)); + if (copy_to_user(arg, &crop, sizeof(crop))) + return -EFAULT; + return 0; + } + + rect->left &= ~7L; + rect->top &= ~7L; + if (rect->width < 8) + rect->width = 8; + if (rect->height < 8) + rect->height = 8; + if (rect->width > bounds->width) + rect->width = bounds->width; + if (rect->height > bounds->height) + rect->height = bounds->height; + if (rect->left < bounds->left) + rect->left = bounds->left; + if (rect->top < bounds->top) + rect->top = bounds->top; + if (rect->left + rect->width > bounds->left + bounds->width) + rect->left = bounds->left+bounds->width - rect->width; + if (rect->top + rect->height > bounds->top + bounds->height) + rect->top = bounds->top+bounds->height - rect->height; + rect->width &= ~7L; + rect->height &= ~7L; + + if (cam->stream == STREAM_ON) + if ((err = zc0301_stream_interrupt(cam))) + return err; + + if (copy_to_user(arg, &crop, sizeof(crop))) { + cam->stream = stream; + return -EFAULT; + } + + if (cam->module_param.force_munmap || cam->io == IO_READ) + zc0301_release_buffers(cam); + + if (s->set_crop) + err += s->set_crop(cam, rect); + + if (err) { /* atomic, no rollback in ioctl() */ + cam->state |= DEV_MISCONFIGURED; + DBG(1, "VIDIOC_S_CROP failed because of hardware problems. To " + "use the camera, close and open /dev/video%d again.", + cam->v4ldev->minor); + return -EIO; + } + + s->pix_format.width = rect->width; + s->pix_format.height = rect->height; + memcpy(&(s->_rect), rect, sizeof(*rect)); + + if ((cam->module_param.force_munmap || cam->io == IO_READ) && + nbuffers != zc0301_request_buffers(cam, nbuffers, cam->io)) { + cam->state |= DEV_MISCONFIGURED; + DBG(1, "VIDIOC_S_CROP failed because of not enough memory. To " + "use the camera, close and open /dev/video%d again.", + cam->v4ldev->minor); + return -ENOMEM; + } + + if (cam->io == IO_READ) + zc0301_empty_framequeues(cam); + else if (cam->module_param.force_munmap) + zc0301_requeue_outqueue(cam); + + cam->stream = stream; + + return 0; +} + + +static int +zc0301_vidioc_enum_fmt(struct zc0301_device* cam, void __user * arg) +{ + struct v4l2_fmtdesc fmtd; + + if (copy_from_user(&fmtd, arg, sizeof(fmtd))) + return -EFAULT; + + if (fmtd.index == 0) { + strcpy(fmtd.description, "JPEG"); + fmtd.pixelformat = V4L2_PIX_FMT_JPEG; + fmtd.flags = V4L2_FMT_FLAG_COMPRESSED; + } else + return -EINVAL; + + fmtd.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + memset(&fmtd.reserved, 0, sizeof(fmtd.reserved)); + + if (copy_to_user(arg, &fmtd, sizeof(fmtd))) + return -EFAULT; + + return 0; +} + + +static int +zc0301_vidioc_g_fmt(struct zc0301_device* cam, void __user * arg) +{ + struct v4l2_format format; + struct v4l2_pix_format* pfmt = &(cam->sensor.pix_format); + + if (copy_from_user(&format, arg, sizeof(format))) + return -EFAULT; + + if (format.type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + pfmt->bytesperline = 0; + pfmt->sizeimage = pfmt->height * ((pfmt->width*pfmt->priv)/8); + pfmt->field = V4L2_FIELD_NONE; + memcpy(&(format.fmt.pix), pfmt, sizeof(*pfmt)); + + if (copy_to_user(arg, &format, sizeof(format))) + return -EFAULT; + + return 0; +} + + +static int +zc0301_vidioc_try_s_fmt(struct zc0301_device* cam, unsigned int cmd, + void __user * arg) +{ + struct zc0301_sensor* s = &cam->sensor; + struct v4l2_format format; + struct v4l2_pix_format* pix; + struct v4l2_pix_format* pfmt = &(s->pix_format); + struct v4l2_rect* bounds = &(s->cropcap.bounds); + struct v4l2_rect rect; + const enum zc0301_stream_state stream = cam->stream; + const u32 nbuffers = cam->nbuffers; + u32 i; + int err = 0; + + if (copy_from_user(&format, arg, sizeof(format))) + return -EFAULT; + + pix = &(format.fmt.pix); + + if (format.type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + memcpy(&rect, &(s->_rect), sizeof(rect)); + + if (!s->set_crop) { + pix->width = rect.width; + pix->height = rect.height; + } else { + rect.width = pix->width; + rect.height = pix->height; + } + + if (rect.width < 8) + rect.width = 8; + if (rect.height < 8) + rect.height = 8; + if (rect.width > bounds->left + bounds->width - rect.left) + rect.width = bounds->left + bounds->width - rect.left; + if (rect.height > bounds->top + bounds->height - rect.top) + rect.height = bounds->top + bounds->height - rect.top; + rect.width &= ~7L; + rect.height &= ~7L; + + pix->width = rect.width; + pix->height = rect.height; + pix->pixelformat = pfmt->pixelformat; + pix->priv = pfmt->priv; + pix->colorspace = pfmt->colorspace; + pix->bytesperline = 0; + pix->sizeimage = pix->height * ((pix->width * pix->priv) / 8); + pix->field = V4L2_FIELD_NONE; + + if (cmd == VIDIOC_TRY_FMT) { + if (copy_to_user(arg, &format, sizeof(format))) + return -EFAULT; + return 0; + } + + if (cam->module_param.force_munmap) + for (i = 0; i < cam->nbuffers; i++) + if (cam->frame[i].vma_use_count) { + DBG(3, "VIDIOC_S_FMT failed. " + "Unmap the buffers first."); + return -EINVAL; + } + + if (cam->stream == STREAM_ON) + if ((err = zc0301_stream_interrupt(cam))) + return err; + + if (copy_to_user(arg, &format, sizeof(format))) { + cam->stream = stream; + return -EFAULT; + } + + if (cam->module_param.force_munmap || cam->io == IO_READ) + zc0301_release_buffers(cam); + + if (s->set_crop) + err += s->set_crop(cam, &rect); + + if (err) { /* atomic, no rollback in ioctl() */ + cam->state |= DEV_MISCONFIGURED; + DBG(1, "VIDIOC_S_FMT failed because of hardware problems. To " + "use the camera, close and open /dev/video%d again.", + cam->v4ldev->minor); + return -EIO; + } + + memcpy(pfmt, pix, sizeof(*pix)); + memcpy(&(s->_rect), &rect, sizeof(rect)); + + if ((cam->module_param.force_munmap || cam->io == IO_READ) && + nbuffers != zc0301_request_buffers(cam, nbuffers, cam->io)) { + cam->state |= DEV_MISCONFIGURED; + DBG(1, "VIDIOC_S_FMT failed because of not enough memory. To " + "use the camera, close and open /dev/video%d again.", + cam->v4ldev->minor); + return -ENOMEM; + } + + if (cam->io == IO_READ) + zc0301_empty_framequeues(cam); + else if (cam->module_param.force_munmap) + zc0301_requeue_outqueue(cam); + + cam->stream = stream; + + return 0; +} + + +static int +zc0301_vidioc_g_jpegcomp(struct zc0301_device* cam, void __user * arg) +{ + if (copy_to_user(arg, &cam->compression, sizeof(cam->compression))) + return -EFAULT; + + return 0; +} + + +static int +zc0301_vidioc_s_jpegcomp(struct zc0301_device* cam, void __user * arg) +{ + struct v4l2_jpegcompression jc; + const enum zc0301_stream_state stream = cam->stream; + int err = 0; + + if (copy_from_user(&jc, arg, sizeof(jc))) + return -EFAULT; + + if (jc.quality != 0) + return -EINVAL; + + if (cam->stream == STREAM_ON) + if ((err = zc0301_stream_interrupt(cam))) + return err; + + err += zc0301_set_compression(cam, &jc); + if (err) { /* atomic, no rollback in ioctl() */ + cam->state |= DEV_MISCONFIGURED; + DBG(1, "VIDIOC_S_JPEGCOMP failed because of hardware " + "problems. To use the camera, close and open " + "/dev/video%d again.", cam->v4ldev->minor); + return -EIO; + } + + cam->compression.quality = jc.quality; + + cam->stream = stream; + + return 0; +} + + +static int +zc0301_vidioc_reqbufs(struct zc0301_device* cam, void __user * arg) +{ + struct v4l2_requestbuffers rb; + u32 i; + int err; + + if (copy_from_user(&rb, arg, sizeof(rb))) + return -EFAULT; + + if (rb.type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + rb.memory != V4L2_MEMORY_MMAP) + return -EINVAL; + + if (cam->io == IO_READ) { + DBG(3, "Close and open the device again to choose the mmap " + "I/O method"); + return -EINVAL; + } + + for (i = 0; i < cam->nbuffers; i++) + if (cam->frame[i].vma_use_count) { + DBG(3, "VIDIOC_REQBUFS failed. " + "Previous buffers are still mapped."); + return -EINVAL; + } + + if (cam->stream == STREAM_ON) + if ((err = zc0301_stream_interrupt(cam))) + return err; + + zc0301_empty_framequeues(cam); + + zc0301_release_buffers(cam); + if (rb.count) + rb.count = zc0301_request_buffers(cam, rb.count, IO_MMAP); + + if (copy_to_user(arg, &rb, sizeof(rb))) { + zc0301_release_buffers(cam); + cam->io = IO_NONE; + return -EFAULT; + } + + cam->io = rb.count ? IO_MMAP : IO_NONE; + + return 0; +} + + +static int +zc0301_vidioc_querybuf(struct zc0301_device* cam, void __user * arg) +{ + struct v4l2_buffer b; + + if (copy_from_user(&b, arg, sizeof(b))) + return -EFAULT; + + if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + b.index >= cam->nbuffers || cam->io != IO_MMAP) + return -EINVAL; + + memcpy(&b, &cam->frame[b.index].buf, sizeof(b)); + + if (cam->frame[b.index].vma_use_count) + b.flags |= V4L2_BUF_FLAG_MAPPED; + + if (cam->frame[b.index].state == F_DONE) + b.flags |= V4L2_BUF_FLAG_DONE; + else if (cam->frame[b.index].state != F_UNUSED) + b.flags |= V4L2_BUF_FLAG_QUEUED; + + if (copy_to_user(arg, &b, sizeof(b))) + return -EFAULT; + + return 0; +} + + +static int +zc0301_vidioc_qbuf(struct zc0301_device* cam, void __user * arg) +{ + struct v4l2_buffer b; + unsigned long lock_flags; + + if (copy_from_user(&b, arg, sizeof(b))) + return -EFAULT; + + if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + b.index >= cam->nbuffers || cam->io != IO_MMAP) + return -EINVAL; + + if (cam->frame[b.index].state != F_UNUSED) + return -EINVAL; + + cam->frame[b.index].state = F_QUEUED; + + spin_lock_irqsave(&cam->queue_lock, lock_flags); + list_add_tail(&cam->frame[b.index].frame, &cam->inqueue); + spin_unlock_irqrestore(&cam->queue_lock, lock_flags); + + PDBGG("Frame #%lu queued", (unsigned long)b.index); + + return 0; +} + + +static int +zc0301_vidioc_dqbuf(struct zc0301_device* cam, struct file* filp, + void __user * arg) +{ + struct v4l2_buffer b; + struct zc0301_frame_t *f; + unsigned long lock_flags; + long timeout; + + if (copy_from_user(&b, arg, sizeof(b))) + return -EFAULT; + + if (b.type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io!= IO_MMAP) + return -EINVAL; + + if (list_empty(&cam->outqueue)) { + if (cam->stream == STREAM_OFF) + return -EINVAL; + if (filp->f_flags & O_NONBLOCK) + return -EAGAIN; + timeout = wait_event_interruptible_timeout + ( cam->wait_frame, + (!list_empty(&cam->outqueue)) || + (cam->state & DEV_DISCONNECTED) || + (cam->state & DEV_MISCONFIGURED), + cam->module_param.frame_timeout * + 1000 * msecs_to_jiffies(1) ); + if (timeout < 0) + return timeout; + if (cam->state & DEV_DISCONNECTED) + return -ENODEV; + if (!timeout || (cam->state & DEV_MISCONFIGURED)) + return -EIO; + } + + spin_lock_irqsave(&cam->queue_lock, lock_flags); + f = list_entry(cam->outqueue.next, struct zc0301_frame_t, frame); + list_del(cam->outqueue.next); + spin_unlock_irqrestore(&cam->queue_lock, lock_flags); + + f->state = F_UNUSED; + + memcpy(&b, &f->buf, sizeof(b)); + if (f->vma_use_count) + b.flags |= V4L2_BUF_FLAG_MAPPED; + + if (copy_to_user(arg, &b, sizeof(b))) + return -EFAULT; + + PDBGG("Frame #%lu dequeued", (unsigned long)f->buf.index); + + return 0; +} + + +static int +zc0301_vidioc_streamon(struct zc0301_device* cam, void __user * arg) +{ + int type; + + if (copy_from_user(&type, arg, sizeof(type))) + return -EFAULT; + + if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP) + return -EINVAL; + + if (list_empty(&cam->inqueue)) + return -EINVAL; + + cam->stream = STREAM_ON; + + DBG(3, "Stream on"); + + return 0; +} + + +static int +zc0301_vidioc_streamoff(struct zc0301_device* cam, void __user * arg) +{ + int type, err; + + if (copy_from_user(&type, arg, sizeof(type))) + return -EFAULT; + + if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP) + return -EINVAL; + + if (cam->stream == STREAM_ON) + if ((err = zc0301_stream_interrupt(cam))) + return err; + + zc0301_empty_framequeues(cam); + + DBG(3, "Stream off"); + + return 0; +} + + +static int +zc0301_vidioc_g_parm(struct zc0301_device* cam, void __user * arg) +{ + struct v4l2_streamparm sp; + + if (copy_from_user(&sp, arg, sizeof(sp))) + return -EFAULT; + + if (sp.type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + sp.parm.capture.extendedmode = 0; + sp.parm.capture.readbuffers = cam->nreadbuffers; + + if (copy_to_user(arg, &sp, sizeof(sp))) + return -EFAULT; + + return 0; +} + + +static int +zc0301_vidioc_s_parm(struct zc0301_device* cam, void __user * arg) +{ + struct v4l2_streamparm sp; + + if (copy_from_user(&sp, arg, sizeof(sp))) + return -EFAULT; + + if (sp.type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + sp.parm.capture.extendedmode = 0; + + if (sp.parm.capture.readbuffers == 0) + sp.parm.capture.readbuffers = cam->nreadbuffers; + + if (sp.parm.capture.readbuffers > ZC0301_MAX_FRAMES) + sp.parm.capture.readbuffers = ZC0301_MAX_FRAMES; + + if (copy_to_user(arg, &sp, sizeof(sp))) + return -EFAULT; + + cam->nreadbuffers = sp.parm.capture.readbuffers; + + return 0; +} + + +static int zc0301_ioctl_v4l2(struct inode* inode, struct file* filp, + unsigned int cmd, void __user * arg) +{ + struct zc0301_device* cam = video_get_drvdata(video_devdata(filp)); + + switch (cmd) { + + case VIDIOC_QUERYCAP: + return zc0301_vidioc_querycap(cam, arg); + + case VIDIOC_ENUMINPUT: + return zc0301_vidioc_enuminput(cam, arg); + + case VIDIOC_G_INPUT: + return zc0301_vidioc_g_input(cam, arg); + + case VIDIOC_S_INPUT: + return zc0301_vidioc_s_input(cam, arg); + + case VIDIOC_QUERYCTRL: + return zc0301_vidioc_query_ctrl(cam, arg); + + case VIDIOC_G_CTRL: + return zc0301_vidioc_g_ctrl(cam, arg); + + case VIDIOC_S_CTRL_OLD: + case VIDIOC_S_CTRL: + return zc0301_vidioc_s_ctrl(cam, arg); + + case VIDIOC_CROPCAP_OLD: + case VIDIOC_CROPCAP: + return zc0301_vidioc_cropcap(cam, arg); + + case VIDIOC_G_CROP: + return zc0301_vidioc_g_crop(cam, arg); + + case VIDIOC_S_CROP: + return zc0301_vidioc_s_crop(cam, arg); + + case VIDIOC_ENUM_FMT: + return zc0301_vidioc_enum_fmt(cam, arg); + + case VIDIOC_G_FMT: + return zc0301_vidioc_g_fmt(cam, arg); + + case VIDIOC_TRY_FMT: + case VIDIOC_S_FMT: + return zc0301_vidioc_try_s_fmt(cam, cmd, arg); + + case VIDIOC_G_JPEGCOMP: + return zc0301_vidioc_g_jpegcomp(cam, arg); + + case VIDIOC_S_JPEGCOMP: + return zc0301_vidioc_s_jpegcomp(cam, arg); + + case VIDIOC_REQBUFS: + return zc0301_vidioc_reqbufs(cam, arg); + + case VIDIOC_QUERYBUF: + return zc0301_vidioc_querybuf(cam, arg); + + case VIDIOC_QBUF: + return zc0301_vidioc_qbuf(cam, arg); + + case VIDIOC_DQBUF: + return zc0301_vidioc_dqbuf(cam, filp, arg); + + case VIDIOC_STREAMON: + return zc0301_vidioc_streamon(cam, arg); + + case VIDIOC_STREAMOFF: + return zc0301_vidioc_streamoff(cam, arg); + + case VIDIOC_G_PARM: + return zc0301_vidioc_g_parm(cam, arg); + + case VIDIOC_S_PARM_OLD: + case VIDIOC_S_PARM: + return zc0301_vidioc_s_parm(cam, arg); + + case VIDIOC_G_STD: + case VIDIOC_S_STD: + case VIDIOC_QUERYSTD: + case VIDIOC_ENUMSTD: + case VIDIOC_QUERYMENU: + return -EINVAL; + + default: + return -EINVAL; + + } +} + + +static int zc0301_ioctl(struct inode* inode, struct file* filp, + unsigned int cmd, unsigned long arg) +{ + struct zc0301_device* cam = video_get_drvdata(video_devdata(filp)); + int err = 0; + + if (mutex_lock_interruptible(&cam->fileop_mutex)) + return -ERESTARTSYS; + + if (cam->state & DEV_DISCONNECTED) { + DBG(1, "Device not present"); + mutex_unlock(&cam->fileop_mutex); + return -ENODEV; + } + + if (cam->state & DEV_MISCONFIGURED) { + DBG(1, "The camera is misconfigured. Close and open it " + "again."); + mutex_unlock(&cam->fileop_mutex); + return -EIO; + } + + V4LDBG(3, "zc0301", cmd); + + err = zc0301_ioctl_v4l2(inode, filp, cmd, (void __user *)arg); + + mutex_unlock(&cam->fileop_mutex); + + return err; +} + + +static struct file_operations zc0301_fops = { + .owner = THIS_MODULE, + .open = zc0301_open, + .release = zc0301_release, + .ioctl = zc0301_ioctl, + .read = zc0301_read, + .poll = zc0301_poll, + .mmap = zc0301_mmap, + .llseek = no_llseek, +}; + +/*****************************************************************************/ + +static int +zc0301_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) +{ + struct usb_device *udev = interface_to_usbdev(intf); + struct zc0301_device* cam; + static unsigned int dev_nr = 0; + unsigned int i; + int err = 0; + + if (!(cam = kzalloc(sizeof(struct zc0301_device), GFP_KERNEL))) + return -ENOMEM; + + cam->usbdev = udev; + + if (!(cam->control_buffer = kzalloc(4, GFP_KERNEL))) { + DBG(1, "kmalloc() failed"); + err = -ENOMEM; + goto fail; + } + + if (!(cam->v4ldev = video_device_alloc())) { + DBG(1, "video_device_alloc() failed"); + err = -ENOMEM; + goto fail; + } + + mutex_init(&cam->dev_mutex); + + DBG(2, "ZC0301 Image Processor and Control Chip detected " + "(vid/pid 0x%04X/0x%04X)",id->idVendor, id->idProduct); + + for (i = 0; zc0301_sensor_table[i]; i++) { + err = zc0301_sensor_table[i](cam); + if (!err) + break; + } + + if (!err) + DBG(2, "%s image sensor detected", cam->sensor.name); + else { + DBG(1, "No supported image sensor detected"); + err = -ENODEV; + goto fail; + } + + if (zc0301_init(cam)) { + DBG(1, "Initialization failed. I will retry on open()."); + cam->state |= DEV_MISCONFIGURED; + } + + strcpy(cam->v4ldev->name, "ZC0301 PC Camera"); + cam->v4ldev->owner = THIS_MODULE; + cam->v4ldev->type = VID_TYPE_CAPTURE | VID_TYPE_SCALES; + cam->v4ldev->hardware = 0; + cam->v4ldev->fops = &zc0301_fops; + cam->v4ldev->minor = video_nr[dev_nr]; + cam->v4ldev->release = video_device_release; + video_set_drvdata(cam->v4ldev, cam); + + mutex_lock(&cam->dev_mutex); + + err = video_register_device(cam->v4ldev, VFL_TYPE_GRABBER, + video_nr[dev_nr]); + if (err) { + DBG(1, "V4L2 device registration failed"); + if (err == -ENFILE && video_nr[dev_nr] == -1) + DBG(1, "Free /dev/videoX node not found"); + video_nr[dev_nr] = -1; + dev_nr = (dev_nr < ZC0301_MAX_DEVICES-1) ? dev_nr+1 : 0; + mutex_unlock(&cam->dev_mutex); + goto fail; + } + + DBG(2, "V4L2 device registered as /dev/video%d", cam->v4ldev->minor); + + cam->module_param.force_munmap = force_munmap[dev_nr]; + cam->module_param.frame_timeout = frame_timeout[dev_nr]; + + dev_nr = (dev_nr < ZC0301_MAX_DEVICES-1) ? dev_nr+1 : 0; + + usb_set_intfdata(intf, cam); + + mutex_unlock(&cam->dev_mutex); + + return 0; + +fail: + if (cam) { + kfree(cam->control_buffer); + if (cam->v4ldev) + video_device_release(cam->v4ldev); + kfree(cam); + } + return err; +} + + +static void zc0301_usb_disconnect(struct usb_interface* intf) +{ + struct zc0301_device* cam = usb_get_intfdata(intf); + + if (!cam) + return; + + down_write(&zc0301_disconnect); + + mutex_lock(&cam->dev_mutex); + + DBG(2, "Disconnecting %s...", cam->v4ldev->name); + + wake_up_interruptible_all(&cam->open); + + if (cam->users) { + DBG(2, "Device /dev/video%d is open! Deregistration and " + "memory deallocation are deferred on close.", + cam->v4ldev->minor); + cam->state |= DEV_MISCONFIGURED; + zc0301_stop_transfer(cam); + cam->state |= DEV_DISCONNECTED; + wake_up_interruptible(&cam->wait_frame); + wake_up(&cam->wait_stream); + usb_get_dev(cam->usbdev); + } else { + cam->state |= DEV_DISCONNECTED; + zc0301_release_resources(cam); + } + + mutex_unlock(&cam->dev_mutex); + + if (!cam->users) + kfree(cam); + + up_write(&zc0301_disconnect); +} + + +static struct usb_driver zc0301_usb_driver = { + .name = "zc0301", + .id_table = zc0301_id_table, + .probe = zc0301_usb_probe, + .disconnect = zc0301_usb_disconnect, +}; + +/*****************************************************************************/ + +static int __init zc0301_module_init(void) +{ + int err = 0; + + KDBG(2, ZC0301_MODULE_NAME " v" ZC0301_MODULE_VERSION); + KDBG(3, ZC0301_MODULE_AUTHOR); + + if ((err = usb_register(&zc0301_usb_driver))) + KDBG(1, "usb_register() failed"); + + return err; +} + + +static void __exit zc0301_module_exit(void) +{ + usb_deregister(&zc0301_usb_driver); +} + + +module_init(zc0301_module_init); +module_exit(zc0301_module_exit); diff --git a/drivers/usb/media/zc0301_pas202bcb.c b/drivers/usb/media/zc0301_pas202bcb.c new file mode 100644 index 0000000..9d282a2 --- /dev/null +++ b/drivers/usb/media/zc0301_pas202bcb.c @@ -0,0 +1,361 @@ +/*************************************************************************** + * Plug-in for PAS202BCB image sensor connected to the ZC030! Image * + * Processor and Control Chip * + * * + * Copyright (C) 2006 by Luca Risolia <luca.risolia@studio.unibo.it> * + * * + * Initialization values of the ZC0301 have been taken from the SPCA5XX * + * driver maintained by Michel Xhaard <mxhaard@magic.fr> * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the Free Software * + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * + ***************************************************************************/ + +/* + NOTE: Sensor controls are disabled for now, becouse changing them while + streaming sometimes results in out-of-sync video frames. We'll use + the default initialization, until we know how to stop and start video + in the chip. However, the image quality still looks good under various + light conditions. +*/ + +#include <linux/delay.h> +#include "zc0301_sensor.h" + + +static struct zc0301_sensor pas202bcb; + + +static int pas202bcb_init(struct zc0301_device* cam) +{ + int err = 0; + + err += zc0301_write_reg(cam, 0x0002, 0x00); + err += zc0301_write_reg(cam, 0x0003, 0x02); + err += zc0301_write_reg(cam, 0x0004, 0x80); + err += zc0301_write_reg(cam, 0x0005, 0x01); + err += zc0301_write_reg(cam, 0x0006, 0xE0); + err += zc0301_write_reg(cam, 0x0098, 0x00); + err += zc0301_write_reg(cam, 0x009A, 0x03); + err += zc0301_write_reg(cam, 0x011A, 0x00); + err += zc0301_write_reg(cam, 0x011C, 0x03); + err += zc0301_write_reg(cam, 0x009B, 0x01); + err += zc0301_write_reg(cam, 0x009C, 0xE6); + err += zc0301_write_reg(cam, 0x009D, 0x02); + err += zc0301_write_reg(cam, 0x009E, 0x86); + + err += zc0301_i2c_write(cam, 0x02, 0x02); + err += zc0301_i2c_write(cam, 0x0A, 0x01); + err += zc0301_i2c_write(cam, 0x0B, 0x01); + err += zc0301_i2c_write(cam, 0x0D, 0x00); + err += zc0301_i2c_write(cam, 0x12, 0x05); + err += zc0301_i2c_write(cam, 0x13, 0x63); + err += zc0301_i2c_write(cam, 0x15, 0x70); + + err += zc0301_write_reg(cam, 0x0101, 0xB7); + err += zc0301_write_reg(cam, 0x0100, 0x0D); + err += zc0301_write_reg(cam, 0x0189, 0x06); + err += zc0301_write_reg(cam, 0x01AD, 0x00); + err += zc0301_write_reg(cam, 0x01C5, 0x03); + err += zc0301_write_reg(cam, 0x01CB, 0x13); + err += zc0301_write_reg(cam, 0x0250, 0x08); + err += zc0301_write_reg(cam, 0x0301, 0x08); + err += zc0301_write_reg(cam, 0x018D, 0x70); + err += zc0301_write_reg(cam, 0x0008, 0x03); + err += zc0301_write_reg(cam, 0x01C6, 0x04); + err += zc0301_write_reg(cam, 0x01CB, 0x07); + err += zc0301_write_reg(cam, 0x0120, 0x11); + err += zc0301_write_reg(cam, 0x0121, 0x37); + err += zc0301_write_reg(cam, 0x0122, 0x58); + err += zc0301_write_reg(cam, 0x0123, 0x79); + err += zc0301_write_reg(cam, 0x0124, 0x91); + err += zc0301_write_reg(cam, 0x0125, 0xA6); + err += zc0301_write_reg(cam, 0x0126, 0xB8); + err += zc0301_write_reg(cam, 0x0127, 0xC7); + err += zc0301_write_reg(cam, 0x0128, 0xD3); + err += zc0301_write_reg(cam, 0x0129, 0xDE); + err += zc0301_write_reg(cam, 0x012A, 0xE6); + err += zc0301_write_reg(cam, 0x012B, 0xED); + err += zc0301_write_reg(cam, 0x012C, 0xF3); + err += zc0301_write_reg(cam, 0x012D, 0xF8); + err += zc0301_write_reg(cam, 0x012E, 0xFB); + err += zc0301_write_reg(cam, 0x012F, 0xFF); + err += zc0301_write_reg(cam, 0x0130, 0x26); + err += zc0301_write_reg(cam, 0x0131, 0x23); + err += zc0301_write_reg(cam, 0x0132, 0x20); + err += zc0301_write_reg(cam, 0x0133, 0x1C); + err += zc0301_write_reg(cam, 0x0134, 0x16); + err += zc0301_write_reg(cam, 0x0135, 0x13); + err += zc0301_write_reg(cam, 0x0136, 0x10); + err += zc0301_write_reg(cam, 0x0137, 0x0D); + err += zc0301_write_reg(cam, 0x0138, 0x0B); + err += zc0301_write_reg(cam, 0x0139, 0x09); + err += zc0301_write_reg(cam, 0x013A, 0x07); + err += zc0301_write_reg(cam, 0x013B, 0x06); + err += zc0301_write_reg(cam, 0x013C, 0x05); + err += zc0301_write_reg(cam, 0x013D, 0x04); + err += zc0301_write_reg(cam, 0x013E, 0x03); + err += zc0301_write_reg(cam, 0x013F, 0x02); + err += zc0301_write_reg(cam, 0x010A, 0x4C); + err += zc0301_write_reg(cam, 0x010B, 0xF5); + err += zc0301_write_reg(cam, 0x010C, 0xFF); + err += zc0301_write_reg(cam, 0x010D, 0xF9); + err += zc0301_write_reg(cam, 0x010E, 0x51); + err += zc0301_write_reg(cam, 0x010F, 0xF5); + err += zc0301_write_reg(cam, 0x0110, 0xFB); + err += zc0301_write_reg(cam, 0x0111, 0xED); + err += zc0301_write_reg(cam, 0x0112, 0x5F); + err += zc0301_write_reg(cam, 0x0180, 0x00); + err += zc0301_write_reg(cam, 0x0019, 0x00); + err += zc0301_write_reg(cam, 0x0087, 0x20); + err += zc0301_write_reg(cam, 0x0088, 0x21); + + err += zc0301_i2c_write(cam, 0x20, 0x02); + err += zc0301_i2c_write(cam, 0x21, 0x1B); + err += zc0301_i2c_write(cam, 0x03, 0x44); + err += zc0301_i2c_write(cam, 0x0E, 0x01); + err += zc0301_i2c_write(cam, 0x0F, 0x00); + + err += zc0301_write_reg(cam, 0x01A9, 0x14); + err += zc0301_write_reg(cam, 0x01AA, 0x24); + err += zc0301_write_reg(cam, 0x0190, 0x00); + err += zc0301_write_reg(cam, 0x0191, 0x02); + err += zc0301_write_reg(cam, 0x0192, 0x1B); + err += zc0301_write_reg(cam, 0x0195, 0x00); + err += zc0301_write_reg(cam, 0x0196, 0x00); + err += zc0301_write_reg(cam, 0x0197, 0x4D); + err += zc0301_write_reg(cam, 0x018C, 0x10); + err += zc0301_write_reg(cam, 0x018F, 0x20); + err += zc0301_write_reg(cam, 0x001D, 0x44); + err += zc0301_write_reg(cam, 0x001E, 0x6F); + err += zc0301_write_reg(cam, 0x001F, 0xAD); + err += zc0301_write_reg(cam, 0x0020, 0xEB); + err += zc0301_write_reg(cam, 0x0087, 0x0F); + err += zc0301_write_reg(cam, 0x0088, 0x0E); + err += zc0301_write_reg(cam, 0x0180, 0x40); + err += zc0301_write_reg(cam, 0x0192, 0x1B); + err += zc0301_write_reg(cam, 0x0191, 0x02); + err += zc0301_write_reg(cam, 0x0190, 0x00); + err += zc0301_write_reg(cam, 0x0116, 0x1D); + err += zc0301_write_reg(cam, 0x0117, 0x40); + err += zc0301_write_reg(cam, 0x0118, 0x99); + err += zc0301_write_reg(cam, 0x0180, 0x42); + err += zc0301_write_reg(cam, 0x0116, 0x1D); + err += zc0301_write_reg(cam, 0x0117, 0x40); + err += zc0301_write_reg(cam, 0x0118, 0x99); + err += zc0301_write_reg(cam, 0x0007, 0x00); + + err += zc0301_i2c_write(cam, 0x11, 0x01); + + msleep(100); + + return err; +} + + +static int pas202bcb_get_ctrl(struct zc0301_device* cam, + struct v4l2_control* ctrl) +{ + switch (ctrl->id) { + case V4L2_CID_EXPOSURE: + { + int r1 = zc0301_i2c_read(cam, 0x04, 1), + r2 = zc0301_i2c_read(cam, 0x05, 1); + if (r1 < 0 || r2 < 0) + return -EIO; + ctrl->value = (r1 << 6) | (r2 & 0x3f); + } + return 0; + case V4L2_CID_RED_BALANCE: + if ((ctrl->value = zc0301_i2c_read(cam, 0x09, 1)) < 0) + return -EIO; + ctrl->value &= 0x0f; + return 0; + case V4L2_CID_BLUE_BALANCE: + if ((ctrl->value = zc0301_i2c_read(cam, 0x07, 1)) < 0) + return -EIO; + ctrl->value &= 0x0f; + return 0; + case V4L2_CID_GAIN: + if ((ctrl->value = zc0301_i2c_read(cam, 0x10, 1)) < 0) + return -EIO; + ctrl->value &= 0x1f; + return 0; + case ZC0301_V4L2_CID_GREEN_BALANCE: + if ((ctrl->value = zc0301_i2c_read(cam, 0x08, 1)) < 0) + return -EIO; + ctrl->value &= 0x0f; + return 0; + case ZC0301_V4L2_CID_DAC_MAGNITUDE: + if ((ctrl->value = zc0301_i2c_read(cam, 0x0c, 1)) < 0) + return -EIO; + return 0; + default: + return -EINVAL; + } +} + + +static int pas202bcb_set_ctrl(struct zc0301_device* cam, + const struct v4l2_control* ctrl) +{ + int err = 0; + + switch (ctrl->id) { + case V4L2_CID_EXPOSURE: + err += zc0301_i2c_write(cam, 0x04, ctrl->value >> 6); + err += zc0301_i2c_write(cam, 0x05, ctrl->value & 0x3f); + break; + case V4L2_CID_RED_BALANCE: + err += zc0301_i2c_write(cam, 0x09, ctrl->value); + break; + case V4L2_CID_BLUE_BALANCE: + err += zc0301_i2c_write(cam, 0x07, ctrl->value); + break; + case V4L2_CID_GAIN: + err += zc0301_i2c_write(cam, 0x10, ctrl->value); + break; + case ZC0301_V4L2_CID_GREEN_BALANCE: + err += zc0301_i2c_write(cam, 0x08, ctrl->value); + break; + case ZC0301_V4L2_CID_DAC_MAGNITUDE: + err += zc0301_i2c_write(cam, 0x0c, ctrl->value); + break; + default: + return -EINVAL; + } + err += zc0301_i2c_write(cam, 0x11, 0x01); + + return err ? -EIO : 0; +} + + +static struct zc0301_sensor pas202bcb = { + .name = "PAS202BCB", + .init = &pas202bcb_init, + .qctrl = { + { + .id = V4L2_CID_EXPOSURE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "exposure", + .minimum = 0x01e5, + .maximum = 0x3fff, + .step = 0x0001, + .default_value = 0x01e5, + .flags = V4L2_CTRL_FLAG_DISABLED, + }, + { + .id = V4L2_CID_GAIN, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "global gain", + .minimum = 0x00, + .maximum = 0x1f, + .step = 0x01, + .default_value = 0x0c, + .flags = V4L2_CTRL_FLAG_DISABLED, + }, + { + .id = ZC0301_V4L2_CID_DAC_MAGNITUDE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "DAC magnitude", + .minimum = 0x00, + .maximum = 0xff, + .step = 0x01, + .default_value = 0x00, + .flags = V4L2_CTRL_FLAG_DISABLED, + }, + { + .id = V4L2_CID_RED_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "red balance", + .minimum = 0x00, + .maximum = 0x0f, + .step = 0x01, + .default_value = 0x01, + .flags = V4L2_CTRL_FLAG_DISABLED, + }, + { + .id = V4L2_CID_BLUE_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "blue balance", + .minimum = 0x00, + .maximum = 0x0f, + .step = 0x01, + .default_value = 0x05, + .flags = V4L2_CTRL_FLAG_DISABLED, + }, + { + .id = ZC0301_V4L2_CID_GREEN_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "green balance", + .minimum = 0x00, + .maximum = 0x0f, + .step = 0x01, + .default_value = 0x00, + .flags = V4L2_CTRL_FLAG_DISABLED, + }, + }, + .get_ctrl = &pas202bcb_get_ctrl, + .set_ctrl = &pas202bcb_set_ctrl, + .cropcap = { + .bounds = { + .left = 0, + .top = 0, + .width = 640, + .height = 480, + }, + .defrect = { + .left = 0, + .top = 0, + .width = 640, + .height = 480, + }, + }, + .pix_format = { + .width = 640, + .height = 480, + .pixelformat = V4L2_PIX_FMT_JPEG, + .priv = 8, + }, +}; + + +int zc0301_probe_pas202bcb(struct zc0301_device* cam) +{ + int r0 = 0, r1 = 0, err = 0; + unsigned int pid = 0; + + err += zc0301_write_reg(cam, 0x0000, 0x01); + err += zc0301_write_reg(cam, 0x0010, 0x0e); + err += zc0301_write_reg(cam, 0x0001, 0x01); + err += zc0301_write_reg(cam, 0x0012, 0x03); + err += zc0301_write_reg(cam, 0x0012, 0x01); + err += zc0301_write_reg(cam, 0x008d, 0x08); + + msleep(10); + + r0 = zc0301_i2c_read(cam, 0x00, 1); + r1 = zc0301_i2c_read(cam, 0x01, 1); + + if (r0 < 0 || r1 < 0 || err) + return -EIO; + + pid = (r0 << 4) | ((r1 & 0xf0) >> 4); + if (pid != 0x017) + return -ENODEV; + + zc0301_attach_sensor(cam, &pas202bcb); + + return 0; +} diff --git a/drivers/usb/media/zc0301_sensor.h b/drivers/usb/media/zc0301_sensor.h new file mode 100644 index 0000000..cf0965a --- /dev/null +++ b/drivers/usb/media/zc0301_sensor.h @@ -0,0 +1,103 @@ +/*************************************************************************** + * API for image sensors connected to the ZC030! Image Processor and * + * Control Chip * + * * + * Copyright (C) 2006 by Luca Risolia <luca.risolia@studio.unibo.it> * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the Free Software * + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * + ***************************************************************************/ + +#ifndef _ZC0301_SENSOR_H_ +#define _ZC0301_SENSOR_H_ + +#include <linux/usb.h> +#include <linux/videodev.h> +#include <linux/device.h> +#include <linux/stddef.h> +#include <linux/errno.h> +#include <asm/types.h> + +struct zc0301_device; +struct zc0301_sensor; + +/*****************************************************************************/ + +extern int zc0301_probe_pas202bcb(struct zc0301_device* cam); + +#define ZC0301_SENSOR_TABLE \ +/* Weak detections must go at the end of the list */ \ +static int (*zc0301_sensor_table[])(struct zc0301_device*) = { \ + &zc0301_probe_pas202bcb, \ + NULL, \ +}; + +extern struct zc0301_device* +zc0301_match_id(struct zc0301_device* cam, const struct usb_device_id *id); + +extern void +zc0301_attach_sensor(struct zc0301_device* cam, struct zc0301_sensor* sensor); + +#define ZC0301_USB_DEVICE(vend, prod, intclass) \ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \ + USB_DEVICE_ID_MATCH_INT_CLASS, \ + .idVendor = (vend), \ + .idProduct = (prod), \ + .bInterfaceClass = (intclass) + +#define ZC0301_ID_TABLE \ +static const struct usb_device_id zc0301_id_table[] = { \ + { ZC0301_USB_DEVICE(0x041e, 0x4017, 0xff), }, \ + { ZC0301_USB_DEVICE(0x041e, 0x401c, 0xff), }, /* PAS106 */ \ + { ZC0301_USB_DEVICE(0x041e, 0x401e, 0xff), }, /* HV7131B */ \ + { ZC0301_USB_DEVICE(0x041e, 0x4034, 0xff), }, /* PAS106 */ \ + { ZC0301_USB_DEVICE(0x041e, 0x4035, 0xff), }, /* PAS106 */ \ + { ZC0301_USB_DEVICE(0x046d, 0x08ae, 0xff), }, /* PAS202BCB */ \ + { ZC0301_USB_DEVICE(0x0ac8, 0x0301, 0xff), }, \ + { ZC0301_USB_DEVICE(0x10fd, 0x8050, 0xff), }, /* TAS5130D */ \ + { } \ +}; + +/*****************************************************************************/ + +extern int zc0301_write_reg(struct zc0301_device*, u16 index, u16 value); +extern int zc0301_read_reg(struct zc0301_device*, u16 index); +extern int zc0301_i2c_write(struct zc0301_device*, u16 address, u16 value); +extern int zc0301_i2c_read(struct zc0301_device*, u16 address, u8 length); + +/*****************************************************************************/ + +#define ZC0301_MAX_CTRLS V4L2_CID_LASTP1-V4L2_CID_BASE+10 +#define ZC0301_V4L2_CID_DAC_MAGNITUDE V4L2_CID_PRIVATE_BASE +#define ZC0301_V4L2_CID_GREEN_BALANCE V4L2_CID_PRIVATE_BASE + 1 + +struct zc0301_sensor { + char name[32]; + + struct v4l2_queryctrl qctrl[ZC0301_MAX_CTRLS]; + struct v4l2_cropcap cropcap; + struct v4l2_pix_format pix_format; + + int (*init)(struct zc0301_device*); + int (*get_ctrl)(struct zc0301_device*, struct v4l2_control* ctrl); + int (*set_ctrl)(struct zc0301_device*, + const struct v4l2_control* ctrl); + int (*set_crop)(struct zc0301_device*, const struct v4l2_rect* rect); + + /* Private */ + struct v4l2_queryctrl _qctrl[ZC0301_MAX_CTRLS]; + struct v4l2_rect _rect; +}; + +#endif /* _ZC0301_SENSOR_H_ */ diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c index ad2f4cc..1fef36e 100644 --- a/drivers/usb/misc/auerswald.c +++ b/drivers/usb/misc/auerswald.c @@ -570,10 +570,9 @@ static int auerchain_setup (pauerchain_t acp, unsigned int numElements) /* fill the list of free elements */ for (;numElements; numElements--) { - acep = (pauerchainelement_t) kmalloc (sizeof (auerchainelement_t), GFP_KERNEL); + acep = kzalloc(sizeof(auerchainelement_t), GFP_KERNEL); if (!acep) goto ac_fail; - memset (acep, 0, sizeof (auerchainelement_t)); INIT_LIST_HEAD (&acep->list); list_add_tail (&acep->list, &acp->free_list); } @@ -761,10 +760,9 @@ static int auerbuf_setup (pauerbufctl_t bcp, unsigned int numElements, unsigned /* fill the list of free elements */ for (;numElements; numElements--) { - bep = (pauerbuf_t) kmalloc (sizeof (auerbuf_t), GFP_KERNEL); + bep = kzalloc(sizeof(auerbuf_t), GFP_KERNEL); if (!bep) goto bl_fail; - memset (bep, 0, sizeof (auerbuf_t)); bep->list = bcp; INIT_LIST_HEAD (&bep->buff_list); bep->bufp = kmalloc (bufsize, GFP_KERNEL); diff --git a/drivers/usb/misc/cytherm.c b/drivers/usb/misc/cytherm.c index 6671317..a042042 100644 --- a/drivers/usb/misc/cytherm.c +++ b/drivers/usb/misc/cytherm.c @@ -351,12 +351,11 @@ static int cytherm_probe(struct usb_interface *interface, struct usb_cytherm *dev = NULL; int retval = -ENOMEM; - dev = kmalloc (sizeof(struct usb_cytherm), GFP_KERNEL); + dev = kzalloc (sizeof(struct usb_cytherm), GFP_KERNEL); if (dev == NULL) { dev_err (&interface->dev, "Out of memory\n"); goto error; } - memset (dev, 0x00, sizeof (*dev)); dev->udev = usb_get_dev(udev); diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c index d8cde10..d0b1672 100644 --- a/drivers/usb/misc/idmouse.c +++ b/drivers/usb/misc/idmouse.c @@ -25,6 +25,7 @@ #include <linux/module.h> #include <linux/smp_lock.h> #include <linux/completion.h> +#include <linux/mutex.h> #include <asm/uaccess.h> #include <linux/usb.h> @@ -121,7 +122,7 @@ static struct usb_driver idmouse_driver = { }; /* prevent races between open() and disconnect() */ -static DECLARE_MUTEX(disconnect_sem); +static DEFINE_MUTEX(disconnect_mutex); static int idmouse_create_image(struct usb_idmouse *dev) { @@ -213,18 +214,18 @@ static int idmouse_open(struct inode *inode, struct file *file) int result = 0; /* prevent disconnects */ - down(&disconnect_sem); + mutex_lock(&disconnect_mutex); /* get the interface from minor number and driver information */ interface = usb_find_interface (&idmouse_driver, iminor (inode)); if (!interface) { - up(&disconnect_sem); + mutex_unlock(&disconnect_mutex); return -ENODEV; } /* get the device information block from the interface */ dev = usb_get_intfdata(interface); if (!dev) { - up(&disconnect_sem); + mutex_unlock(&disconnect_mutex); return -ENODEV; } @@ -258,7 +259,7 @@ error: up(&dev->sem); /* unlock the disconnect semaphore */ - up(&disconnect_sem); + mutex_unlock(&disconnect_mutex); return result; } @@ -267,12 +268,12 @@ static int idmouse_release(struct inode *inode, struct file *file) struct usb_idmouse *dev; /* prevent a race condition with open() */ - down(&disconnect_sem); + mutex_lock(&disconnect_mutex); dev = (struct usb_idmouse *) file->private_data; if (dev == NULL) { - up(&disconnect_sem); + mutex_unlock(&disconnect_mutex); return -ENODEV; } @@ -282,7 +283,7 @@ static int idmouse_release(struct inode *inode, struct file *file) /* are we really open? */ if (dev->open <= 0) { up(&dev->sem); - up(&disconnect_sem); + mutex_unlock(&disconnect_mutex); return -ENODEV; } @@ -292,12 +293,12 @@ static int idmouse_release(struct inode *inode, struct file *file) /* the device was unplugged before the file was released */ up(&dev->sem); idmouse_delete(dev); - up(&disconnect_sem); + mutex_unlock(&disconnect_mutex); return 0; } up(&dev->sem); - up(&disconnect_sem); + mutex_unlock(&disconnect_mutex); return 0; } @@ -340,10 +341,9 @@ static int idmouse_probe(struct usb_interface *interface, return -ENODEV; /* allocate memory for our device state and initialize it */ - dev = kmalloc(sizeof(*dev), GFP_KERNEL); + dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (dev == NULL) return -ENOMEM; - memset(dev, 0x00, sizeof(*dev)); init_MUTEX(&dev->sem); dev->udev = udev; @@ -400,7 +400,7 @@ static void idmouse_disconnect(struct usb_interface *interface) struct usb_idmouse *dev; /* prevent races with open() */ - down(&disconnect_sem); + mutex_lock(&disconnect_mutex); /* get device structure */ dev = usb_get_intfdata(interface); @@ -422,7 +422,7 @@ static void idmouse_disconnect(struct usb_interface *interface) if (!dev->open) idmouse_delete(dev); - up(&disconnect_sem); + mutex_unlock(&disconnect_mutex); info("%s disconnected", DRIVER_DESC); } diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c index e2d1198..966acb4 100644 --- a/drivers/usb/misc/ldusb.c +++ b/drivers/usb/misc/ldusb.c @@ -33,6 +33,7 @@ #include <linux/init.h> #include <linux/slab.h> #include <linux/module.h> +#include <linux/mutex.h> #include <asm/uaccess.h> #include <linux/input.h> @@ -172,7 +173,7 @@ struct ld_usb { }; /* prevent races between open() and disconnect() */ -static DECLARE_MUTEX(disconnect_sem); +static DEFINE_MUTEX(disconnect_mutex); static struct usb_driver ld_usb_driver; @@ -293,7 +294,7 @@ static int ld_usb_open(struct inode *inode, struct file *file) nonseekable_open(inode, file); subminor = iminor(inode); - down(&disconnect_sem); + mutex_lock(&disconnect_mutex); interface = usb_find_interface(&ld_usb_driver, subminor); @@ -355,7 +356,7 @@ unlock_exit: up(&dev->sem); unlock_disconnect_exit: - up(&disconnect_sem); + mutex_unlock(&disconnect_mutex); return retval; } @@ -626,12 +627,11 @@ static int ld_usb_probe(struct usb_interface *intf, const struct usb_device_id * /* allocate memory for our device state and intialize it */ - dev = kmalloc(sizeof(*dev), GFP_KERNEL); + dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (dev == NULL) { dev_err(&intf->dev, "Out of memory\n"); goto exit; } - memset(dev, 0x00, sizeof(*dev)); init_MUTEX(&dev->sem); dev->intf = intf; init_waitqueue_head(&dev->read_wait); @@ -741,7 +741,7 @@ static void ld_usb_disconnect(struct usb_interface *intf) struct ld_usb *dev; int minor; - down(&disconnect_sem); + mutex_lock(&disconnect_mutex); dev = usb_get_intfdata(intf); usb_set_intfdata(intf, NULL); @@ -762,7 +762,7 @@ static void ld_usb_disconnect(struct usb_interface *intf) up(&dev->sem); } - up(&disconnect_sem); + mutex_unlock(&disconnect_mutex); dev_info(&intf->dev, "LD USB Device #%d now disconnected\n", (minor - USB_LD_MINOR_BASE)); diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c index 1336745..779bcf0 100644 --- a/drivers/usb/misc/legousbtower.c +++ b/drivers/usb/misc/legousbtower.c @@ -83,6 +83,7 @@ #include <linux/module.h> #include <linux/smp_lock.h> #include <linux/completion.h> +#include <linux/mutex.h> #include <asm/uaccess.h> #include <linux/usb.h> #include <linux/poll.h> @@ -256,7 +257,7 @@ static void tower_disconnect (struct usb_interface *interface); /* prevent races between open() and disconnect */ -static DECLARE_MUTEX (disconnect_sem); +static DEFINE_MUTEX (disconnect_mutex); /* file operations needed when we register this driver */ static struct file_operations tower_fops = { @@ -349,7 +350,7 @@ static int tower_open (struct inode *inode, struct file *file) nonseekable_open(inode, file); subminor = iminor(inode); - down (&disconnect_sem); + mutex_lock (&disconnect_mutex); interface = usb_find_interface (&tower_driver, subminor); @@ -427,7 +428,7 @@ unlock_exit: up (&dev->sem); unlock_disconnect_exit: - up (&disconnect_sem); + mutex_unlock (&disconnect_mutex); dbg(2, "%s: leave, return value %d ", __FUNCTION__, retval); @@ -1005,7 +1006,7 @@ static void tower_disconnect (struct usb_interface *interface) dbg(2, "%s: enter", __FUNCTION__); - down (&disconnect_sem); + mutex_lock (&disconnect_mutex); dev = usb_get_intfdata (interface); usb_set_intfdata (interface, NULL); @@ -1027,7 +1028,7 @@ static void tower_disconnect (struct usb_interface *interface) up (&dev->sem); } - up (&disconnect_sem); + mutex_unlock (&disconnect_mutex); info("LEGO USB Tower #%d now disconnected", (minor - LEGO_USB_TOWER_MINOR_BASE)); diff --git a/drivers/usb/misc/phidgetkit.c b/drivers/usb/misc/phidgetkit.c index 605a3c8..997db5d 100644 --- a/drivers/usb/misc/phidgetkit.c +++ b/drivers/usb/misc/phidgetkit.c @@ -88,7 +88,7 @@ static int change_outputs(struct phidget_interfacekit *kit, int output_num, int int retval; int n; - buffer = kmalloc(4, GFP_KERNEL); + buffer = kzalloc(4, GFP_KERNEL); if (!buffer) { dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__); @@ -96,7 +96,6 @@ static int change_outputs(struct phidget_interfacekit *kit, int output_num, int } kit->outputs[output_num] = enable; - memset(buffer, 0, 4); for (n=0; n<8; n++) { if (kit->outputs[n]) { buffer[0] |= 1 << n; @@ -192,7 +191,7 @@ static ssize_t set_backlight(struct device *dev, struct device_attribute *attr, unsigned char *buffer; int retval = -ENOMEM; - buffer = kmalloc(8, GFP_KERNEL); + buffer = kzalloc(8, GFP_KERNEL); if (!buffer) { dev_err(&kit->udev->dev, "%s - out of memory\n", __FUNCTION__); goto exit; @@ -202,7 +201,6 @@ static ssize_t set_backlight(struct device *dev, struct device_attribute *attr, retval = -EINVAL; goto exit; } - memset(buffer, 0x00, 8); if (enabled) buffer[0] = 0x01; buffer[7] = 0x11; @@ -406,12 +404,11 @@ static int interfacekit_probe(struct usb_interface *intf, const struct usb_devic pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); - kit = kmalloc(sizeof(*kit), GFP_KERNEL); + kit = kzalloc(sizeof(*kit), GFP_KERNEL); if (kit == NULL) { dev_err(&intf->dev, "%s - out of memory\n", __FUNCTION__); return -ENOMEM; } - memset(kit, 0, sizeof(*kit)); kit->ifkit = ifkit; kit->data = usb_buffer_alloc(dev, 8, SLAB_ATOMIC, &kit->data_dma); diff --git a/drivers/usb/misc/phidgetservo.c b/drivers/usb/misc/phidgetservo.c index b3418d2..5a040c2 100644 --- a/drivers/usb/misc/phidgetservo.c +++ b/drivers/usb/misc/phidgetservo.c @@ -252,12 +252,11 @@ servo_probe(struct usb_interface *interface, const struct usb_device_id *id) struct usb_device *udev = interface_to_usbdev(interface); struct phidget_servo *dev; - dev = kmalloc(sizeof (struct phidget_servo), GFP_KERNEL); + dev = kzalloc(sizeof (struct phidget_servo), GFP_KERNEL); if (dev == NULL) { dev_err(&interface->dev, "%s - out of memory\n", __FUNCTION__); return -ENOMEM; } - memset(dev, 0x00, sizeof (*dev)); dev->udev = usb_get_dev(udev); dev->type = id->driver_info; diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index 3260d59..196c879 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -3188,7 +3188,7 @@ sisusb_ioctl(struct inode *inode, struct file *file, unsigned int cmd, break; default: - retval = -EINVAL; + retval = -ENOTTY; break; } @@ -3251,12 +3251,11 @@ static int sisusb_probe(struct usb_interface *intf, dev->devnum); /* Allocate memory for our private */ - if (!(sisusb = kmalloc(sizeof(*sisusb), GFP_KERNEL))) { + if (!(sisusb = kzalloc(sizeof(*sisusb), GFP_KERNEL))) { printk(KERN_ERR "sisusb: Failed to allocate memory for private data\n"); return -ENOMEM; } - memset(sisusb, 0, sizeof(*sisusb)); kref_init(&sisusb->kref); init_MUTEX(&(sisusb->lock)); diff --git a/drivers/usb/misc/sisusbvga/sisusb.h b/drivers/usb/misc/sisusbvga/sisusb.h index 1d7a77c..a716825 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.h +++ b/drivers/usb/misc/sisusbvga/sisusb.h @@ -37,24 +37,16 @@ #ifndef _SISUSB_H_ #define _SISUSB_H_ -#include <linux/version.h> #ifdef CONFIG_COMPAT -#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,10) -#include <linux/ioctl32.h> -#define SISUSB_OLD_CONFIG_COMPAT -#else #define SISUSB_NEW_CONFIG_COMPAT #endif -#endif /* For older kernels, support for text consoles is by default * off. To ensable text console support, change the following: */ #if 0 -#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,13) #define CONFIG_USB_SISUSBVGA_CON #endif -#endif /* Version Information */ diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c index cc3dae3..c82c402 100644 --- a/drivers/usb/misc/usblcd.c +++ b/drivers/usb/misc/usblcd.c @@ -270,12 +270,11 @@ static int lcd_probe(struct usb_interface *interface, const struct usb_device_id int retval = -ENOMEM; /* allocate memory for our device state and initialize it */ - dev = kmalloc(sizeof(*dev), GFP_KERNEL); + dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (dev == NULL) { err("Out of memory"); goto error; } - memset(dev, 0x00, sizeof(*dev)); kref_init(&dev->kref); dev->udev = usb_get_dev(interface_to_usbdev(interface)); diff --git a/drivers/usb/misc/usbled.c b/drivers/usb/misc/usbled.c index 877b081..f441964 100644 --- a/drivers/usb/misc/usbled.c +++ b/drivers/usb/misc/usbled.c @@ -106,12 +106,11 @@ static int led_probe(struct usb_interface *interface, const struct usb_device_id struct usb_led *dev = NULL; int retval = -ENOMEM; - dev = kmalloc(sizeof(struct usb_led), GFP_KERNEL); + dev = kzalloc(sizeof(struct usb_led), GFP_KERNEL); if (dev == NULL) { dev_err(&interface->dev, "Out of memory\n"); goto error; } - memset (dev, 0x00, sizeof (*dev)); dev->udev = usb_get_dev(udev); diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 84fa172..9d59b90 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -382,12 +382,11 @@ alloc_sglist (int nents, int max, int vary) for (i = 0; i < nents; i++) { char *buf; - buf = kmalloc (size, SLAB_KERNEL); + buf = kzalloc (size, SLAB_KERNEL); if (!buf) { free_sglist (sg, i); return NULL; } - memset (buf, 0, size); /* kmalloc pages are always physically contiguous! */ sg_init_one(&sg[i], buf, size); @@ -842,10 +841,9 @@ test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param) * as with bulk/intr sglists, sglen is the queue depth; it also * controls which subtests run (more tests than sglen) or rerun. */ - urb = kmalloc (param->sglen * sizeof (struct urb *), SLAB_KERNEL); + urb = kcalloc(param->sglen, sizeof(struct urb *), SLAB_KERNEL); if (!urb) return -ENOMEM; - memset (urb, 0, param->sglen * sizeof (struct urb *)); for (i = 0; i < param->sglen; i++) { int pipe = usb_rcvctrlpipe (udev, 0); unsigned len; @@ -1865,10 +1863,9 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id) } #endif - dev = kmalloc (sizeof *dev, SLAB_KERNEL); + dev = kzalloc(sizeof(*dev), SLAB_KERNEL); if (!dev) return -ENOMEM; - memset (dev, 0, sizeof *dev); info = (struct usbtest_info *) id->driver_info; dev->info = info; init_MUTEX (&dev->sem); diff --git a/drivers/usb/mon/mon_main.c b/drivers/usb/mon/mon_main.c index c34944c..6ecc273 100644 --- a/drivers/usb/mon/mon_main.c +++ b/drivers/usb/mon/mon_main.c @@ -12,6 +12,7 @@ #include <linux/debugfs.h> #include <linux/smp_lock.h> #include <linux/notifier.h> +#include <linux/mutex.h> #include "usb_mon.h" #include "../core/hcd.h" @@ -23,7 +24,7 @@ static void mon_dissolve(struct mon_bus *mbus, struct usb_bus *ubus); static void mon_bus_drop(struct kref *r); static void mon_bus_init(struct dentry *mondir, struct usb_bus *ubus); -DECLARE_MUTEX(mon_lock); +DEFINE_MUTEX(mon_lock); static struct dentry *mon_dir; /* /dbg/usbmon */ static LIST_HEAD(mon_buses); /* All buses we know: struct mon_bus */ @@ -196,14 +197,14 @@ static void mon_bus_remove(struct usb_bus *ubus) { struct mon_bus *mbus = ubus->mon_bus; - down(&mon_lock); + mutex_lock(&mon_lock); list_del(&mbus->bus_link); debugfs_remove(mbus->dent_t); debugfs_remove(mbus->dent_s); mon_dissolve(mbus, ubus); kref_put(&mbus->ref, mon_bus_drop); - up(&mon_lock); + mutex_unlock(&mon_lock); } static int mon_notify(struct notifier_block *self, unsigned long action, @@ -276,9 +277,8 @@ static void mon_bus_init(struct dentry *mondir, struct usb_bus *ubus) char name[NAMESZ]; int rc; - if ((mbus = kmalloc(sizeof(struct mon_bus), GFP_KERNEL)) == NULL) + if ((mbus = kzalloc(sizeof(struct mon_bus), GFP_KERNEL)) == NULL) goto err_alloc; - memset(mbus, 0, sizeof(struct mon_bus)); kref_init(&mbus->ref); spin_lock_init(&mbus->lock); INIT_LIST_HEAD(&mbus->r_list); @@ -307,9 +307,9 @@ static void mon_bus_init(struct dentry *mondir, struct usb_bus *ubus) goto err_create_s; mbus->dent_s = d; - down(&mon_lock); + mutex_lock(&mon_lock); list_add_tail(&mbus->bus_link, &mon_buses); - up(&mon_lock); + mutex_unlock(&mon_lock); return; err_create_s: @@ -347,11 +347,11 @@ static int __init mon_init(void) usb_register_notify(&mon_nb); - down(&usb_bus_list_lock); + mutex_lock(&usb_bus_list_lock); list_for_each_entry (ubus, &usb_bus_list, bus_list) { mon_bus_init(mondir, ubus); } - up(&usb_bus_list_lock); + mutex_unlock(&usb_bus_list_lock); return 0; } @@ -363,7 +363,7 @@ static void __exit mon_exit(void) usb_unregister_notify(&mon_nb); usb_mon_deregister(); - down(&mon_lock); + mutex_lock(&mon_lock); while (!list_empty(&mon_buses)) { p = mon_buses.next; mbus = list_entry(p, struct mon_bus, bus_link); @@ -387,7 +387,7 @@ static void __exit mon_exit(void) mon_dissolve(mbus, mbus->u_bus); kref_put(&mbus->ref, mon_bus_drop); } - up(&mon_lock); + mutex_unlock(&mon_lock); debugfs_remove(mon_dir); } diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c index 6116121..ac043ec 100644 --- a/drivers/usb/mon/mon_text.c +++ b/drivers/usb/mon/mon_text.c @@ -8,6 +8,7 @@ #include <linux/list.h> #include <linux/usb.h> #include <linux/time.h> +#include <linux/mutex.h> #include <asm/uaccess.h> #include "usb_mon.h" @@ -54,7 +55,7 @@ struct mon_reader_text { wait_queue_head_t wait; int printf_size; char *printf_buf; - struct semaphore printf_lock; + struct mutex printf_lock; char slab_name[SLAB_NAME_SZ]; }; @@ -208,19 +209,18 @@ static int mon_text_open(struct inode *inode, struct file *file) struct mon_reader_text *rp; int rc; - down(&mon_lock); + mutex_lock(&mon_lock); mbus = inode->u.generic_ip; ubus = mbus->u_bus; - rp = kmalloc(sizeof(struct mon_reader_text), GFP_KERNEL); + rp = kzalloc(sizeof(struct mon_reader_text), GFP_KERNEL); if (rp == NULL) { rc = -ENOMEM; goto err_alloc; } - memset(rp, 0, sizeof(struct mon_reader_text)); INIT_LIST_HEAD(&rp->e_list); init_waitqueue_head(&rp->wait); - init_MUTEX(&rp->printf_lock); + mutex_init(&rp->printf_lock); rp->printf_size = PRINTF_DFL; rp->printf_buf = kmalloc(rp->printf_size, GFP_KERNEL); @@ -247,7 +247,7 @@ static int mon_text_open(struct inode *inode, struct file *file) mon_reader_add(mbus, &rp->r); file->private_data = rp; - up(&mon_lock); + mutex_unlock(&mon_lock); return 0; // err_busy: @@ -257,7 +257,7 @@ err_slab: err_alloc_pr: kfree(rp); err_alloc: - up(&mon_lock); + mutex_unlock(&mon_lock); return rc; } @@ -301,7 +301,7 @@ static ssize_t mon_text_read(struct file *file, char __user *buf, set_current_state(TASK_RUNNING); remove_wait_queue(&rp->wait, &waita); - down(&rp->printf_lock); + mutex_lock(&rp->printf_lock); cnt = 0; pbuf = rp->printf_buf; limit = rp->printf_size; @@ -358,7 +358,7 @@ static ssize_t mon_text_read(struct file *file, char __user *buf, if (copy_to_user(buf, rp->printf_buf, cnt)) cnt = -EFAULT; - up(&rp->printf_lock); + mutex_unlock(&rp->printf_lock); kmem_cache_free(rp->e_slab, ep); return cnt; } @@ -371,12 +371,12 @@ static int mon_text_release(struct inode *inode, struct file *file) struct list_head *p; struct mon_event_text *ep; - down(&mon_lock); + mutex_lock(&mon_lock); mbus = inode->u.generic_ip; if (mbus->nreaders <= 0) { printk(KERN_ERR TAG ": consistency error on close\n"); - up(&mon_lock); + mutex_unlock(&mon_lock); return 0; } mon_reader_del(mbus, &rp->r); @@ -402,7 +402,7 @@ static int mon_text_release(struct inode *inode, struct file *file) kfree(rp->printf_buf); kfree(rp); - up(&mon_lock); + mutex_unlock(&mon_lock); return 0; } diff --git a/drivers/usb/mon/usb_mon.h b/drivers/usb/mon/usb_mon.h index 4be0f93..8e0613c 100644 --- a/drivers/usb/mon/usb_mon.h +++ b/drivers/usb/mon/usb_mon.h @@ -49,7 +49,7 @@ void mon_reader_del(struct mon_bus *mbus, struct mon_reader *r); */ extern char mon_dmapeek(unsigned char *dst, dma_addr_t dma_addr, int len); -extern struct semaphore mon_lock; +extern struct mutex mon_lock; extern struct file_operations mon_fops_text; extern struct file_operations mon_fops_stat; diff --git a/drivers/usb/net/pegasus.c b/drivers/usb/net/pegasus.c index 156a2f1..5b66756 100644 --- a/drivers/usb/net/pegasus.c +++ b/drivers/usb/net/pegasus.c @@ -524,6 +524,7 @@ static int enable_net_traffic(struct net_device *dev, struct usb_device *usb) ret = set_registers(pegasus, EthCtrl0, 3, data); if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || + usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 || usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { u16 auxmode; read_mii_word(pegasus, 0, 0x1b, &auxmode); diff --git a/drivers/usb/net/pegasus.h b/drivers/usb/net/pegasus.h index 9fbd59b..a54752c 100644 --- a/drivers/usb/net/pegasus.h +++ b/drivers/usb/net/pegasus.h @@ -25,7 +25,6 @@ #define PHY_READ 0x40 #define PHY_WRITE 0x20 #define DEFAULT_GPIO_RESET 0x24 -#define LINKSYS_GPIO_RESET 0x24 #define DEFAULT_GPIO_SET 0x26 #define PEGASUS_PRESENT 0x00000001 @@ -140,6 +139,7 @@ struct usb_eth_dev { #define VENDOR_KINGSTON 0x0951 #define VENDOR_LANEED 0x056e #define VENDOR_LINKSYS 0x066b +#define VENDOR_LINKSYS2 0x077b #define VENDOR_MELCO 0x0411 #define VENDOR_MICROSOFT 0x045e #define VENDOR_MOBILITY 0x1342 @@ -218,15 +218,15 @@ PEGASUS_DEV( "Corega FEter USB-TX", VENDOR_COREGA, 0x0004, PEGASUS_DEV( "Corega FEter USB-TXS", VENDOR_COREGA, 0x000d, DEFAULT_GPIO_RESET | PEGASUS_II ) PEGASUS_DEV( "D-Link DSB-650TX", VENDOR_DLINK, 0x4001, - LINKSYS_GPIO_RESET ) + DEFAULT_GPIO_RESET ) PEGASUS_DEV( "D-Link DSB-650TX", VENDOR_DLINK, 0x4002, - LINKSYS_GPIO_RESET ) + DEFAULT_GPIO_RESET ) PEGASUS_DEV( "D-Link DSB-650TX", VENDOR_DLINK, 0x4102, - LINKSYS_GPIO_RESET | PEGASUS_II ) + DEFAULT_GPIO_RESET | PEGASUS_II ) PEGASUS_DEV( "D-Link DSB-650TX", VENDOR_DLINK, 0x400b, - LINKSYS_GPIO_RESET | PEGASUS_II ) + DEFAULT_GPIO_RESET | PEGASUS_II ) PEGASUS_DEV( "D-Link DSB-650TX", VENDOR_DLINK, 0x200c, - LINKSYS_GPIO_RESET | PEGASUS_II ) + DEFAULT_GPIO_RESET | PEGASUS_II ) PEGASUS_DEV( "D-Link DSB-650TX(PNA)", VENDOR_DLINK, 0x4003, DEFAULT_GPIO_RESET | HAS_HOME_PNA ) PEGASUS_DEV( "D-Link DSB-650", VENDOR_DLINK, 0xabc1, @@ -260,17 +260,19 @@ PEGASUS_DEV( "LANEED USB Ethernet LD-USB/T", VENDOR_LANEED, 0xabc1, PEGASUS_DEV( "LANEED USB Ethernet LD-USB/TX", VENDOR_LANEED, 0x200c, DEFAULT_GPIO_RESET | PEGASUS_II ) PEGASUS_DEV( "Linksys USB10TX", VENDOR_LINKSYS, 0x2202, - LINKSYS_GPIO_RESET ) + DEFAULT_GPIO_RESET ) PEGASUS_DEV( "Linksys USB100TX", VENDOR_LINKSYS, 0x2203, - LINKSYS_GPIO_RESET ) + DEFAULT_GPIO_RESET ) PEGASUS_DEV( "Linksys USB100TX", VENDOR_LINKSYS, 0x2204, - LINKSYS_GPIO_RESET | HAS_HOME_PNA ) + DEFAULT_GPIO_RESET | HAS_HOME_PNA ) PEGASUS_DEV( "Linksys USB10T Ethernet Adapter", VENDOR_LINKSYS, 0x2206, - LINKSYS_GPIO_RESET | PEGASUS_II) + DEFAULT_GPIO_RESET | PEGASUS_II) +PEGASUS_DEV( "Linksys USBVPN1", VENDOR_LINKSYS2, 0x08b4, + DEFAULT_GPIO_RESET ) PEGASUS_DEV( "Linksys USB USB100TX", VENDOR_LINKSYS, 0x400b, - LINKSYS_GPIO_RESET | PEGASUS_II ) + DEFAULT_GPIO_RESET | PEGASUS_II ) PEGASUS_DEV( "Linksys USB10TX", VENDOR_LINKSYS, 0x200c, - LINKSYS_GPIO_RESET | PEGASUS_II ) + DEFAULT_GPIO_RESET | PEGASUS_II ) PEGASUS_DEV( "MELCO/BUFFALO LUA-TX", VENDOR_MELCO, 0x0001, DEFAULT_GPIO_RESET ) PEGASUS_DEV( "MELCO/BUFFALO LUA-TX", VENDOR_MELCO, 0x0005, diff --git a/drivers/usb/net/rtl8150.c b/drivers/usb/net/rtl8150.c index 8ca52be..1bbbae2 100644 --- a/drivers/usb/net/rtl8150.c +++ b/drivers/usb/net/rtl8150.c @@ -880,7 +880,6 @@ static int rtl8150_probe(struct usb_interface *intf, } fill_skb_pool(dev); set_ethernet_addr(dev); - info("%s: rtl8150 is detected", netdev->name); usb_set_intfdata(intf, dev); SET_NETDEV_DEV(netdev, &intf->dev); @@ -888,6 +887,9 @@ static int rtl8150_probe(struct usb_interface *intf, err("couldn't register the device"); goto out2; } + + info("%s: rtl8150 is detected", netdev->name); + return 0; out2: diff --git a/drivers/usb/net/zd1201.c b/drivers/usb/net/zd1201.c index f3a8e28..fe9b60c 100644 --- a/drivers/usb/net/zd1201.c +++ b/drivers/usb/net/zd1201.c @@ -621,10 +621,9 @@ static int zd1201_drvr_start(struct zd1201 *zd) __le16 zdmax; unsigned char *buffer; - buffer = kmalloc(ZD1201_RXSIZE, GFP_KERNEL); + buffer = kzalloc(ZD1201_RXSIZE, GFP_KERNEL); if (!buffer) return -ENOMEM; - memset(buffer, 0, ZD1201_RXSIZE); usb_fill_bulk_urb(zd->rx_urb, zd->usb, usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE, @@ -1750,11 +1749,9 @@ static int zd1201_probe(struct usb_interface *interface, usb = interface_to_usbdev(interface); - zd = kmalloc(sizeof(struct zd1201), GFP_KERNEL); - if (!zd) { + zd = kzalloc(sizeof(struct zd1201), GFP_KERNEL); + if (!zd) return -ENOMEM; - } - memset(zd, 0, sizeof(struct zd1201)); zd->ap = ap; zd->usb = usb; zd->removed = 0; diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig index be5dc80..5a8a2c9 100644 --- a/drivers/usb/serial/Kconfig +++ b/drivers/usb/serial/Kconfig @@ -403,6 +403,13 @@ config USB_SERIAL_MCT_U232 To compile this driver as a module, choose M here: the module will be called mct_u232. +config USB_SERIAL_NAVMAN + tristate "USB Navman GPS device" + depends on USB_SERIAL + help + To compile this driver as a module, choose M here: the + module will be called navman. + config USB_SERIAL_PL2303 tristate "USB Prolific 2303 Single Port Serial Driver" depends on USB_SERIAL diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile index f0b0442..f7fe417 100644 --- a/drivers/usb/serial/Makefile +++ b/drivers/usb/serial/Makefile @@ -32,6 +32,7 @@ obj-$(CONFIG_USB_SERIAL_KEYSPAN_PDA) += keyspan_pda.o obj-$(CONFIG_USB_SERIAL_KLSI) += kl5kusb105.o obj-$(CONFIG_USB_SERIAL_KOBIL_SCT) += kobil_sct.o obj-$(CONFIG_USB_SERIAL_MCT_U232) += mct_u232.o +obj-$(CONFIG_USB_SERIAL_NAVMAN) += navman.o obj-$(CONFIG_USB_SERIAL_OMNINET) += omninet.o obj-$(CONFIG_USB_SERIAL_OPTION) += option.o obj-$(CONFIG_USB_SERIAL_PL2303) += pl2303.o diff --git a/drivers/usb/serial/cp2101.c b/drivers/usb/serial/cp2101.c index dc7a069..e0c2acd 100644 --- a/drivers/usb/serial/cp2101.c +++ b/drivers/usb/serial/cp2101.c @@ -32,7 +32,7 @@ /* * Version Information */ -#define DRIVER_VERSION "v0.06" +#define DRIVER_VERSION "v0.07" #define DRIVER_DESC "Silicon Labs CP2101/CP2102 RS232 serial adaptor driver" /* @@ -58,6 +58,7 @@ static struct usb_device_id id_table [] = { { USB_DEVICE(0x10A6, 0xAA26) }, /* Knock-off DCU-11 cable */ { USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */ { USB_DEVICE(0x10B5, 0xAC70) }, /* Nokia CA-42 USB */ + { USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */ { USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */ { USB_DEVICE(0x10C4, 0x80CA) }, /* Degree Controls Inc */ { USB_DEVICE(0x10C4, 0x80F6) }, /* Suunto sports instrument */ @@ -169,9 +170,7 @@ static int cp2101_get_config(struct usb_serial_port* port, u8 request, /* Number of integers required to contain the array */ length = (((size - 1) | 3) + 1)/4; - buf = kmalloc (length * sizeof(u32), GFP_KERNEL); - memset(buf, 0, length * sizeof(u32)); - + buf = kcalloc(length, sizeof(u32), GFP_KERNEL); if (!buf) { dev_err(&port->dev, "%s - out of memory.\n", __FUNCTION__); return -ENOMEM; diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 68067fe..7212fbe 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -98,10 +98,16 @@ static struct usb_device_id id_table_cyphidcomrs232 [] = { { } /* Terminating entry */ }; +static struct usb_device_id id_table_nokiaca42v2 [] = { + { USB_DEVICE(VENDOR_ID_DAZZLE, PRODUCT_ID_CA42) }, + { } /* Terminating entry */ +}; + static struct usb_device_id id_table_combined [] = { { USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB) }, { USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB_LT20) }, { USB_DEVICE(VENDOR_ID_CYPRESS, PRODUCT_ID_CYPHIDCOM) }, + { USB_DEVICE(VENDOR_ID_DAZZLE, PRODUCT_ID_CA42) }, { } /* Terminating entry */ }; @@ -149,6 +155,7 @@ struct cypress_buf { /* function prototypes for the Cypress USB to serial device */ static int cypress_earthmate_startup (struct usb_serial *serial); static int cypress_hidcom_startup (struct usb_serial *serial); +static int cypress_ca42v2_startup (struct usb_serial *serial); static void cypress_shutdown (struct usb_serial *serial); static int cypress_open (struct usb_serial_port *port, struct file *filp); static void cypress_close (struct usb_serial_port *port, struct file *filp); @@ -235,6 +242,34 @@ static struct usb_serial_driver cypress_hidcom_device = { .write_int_callback = cypress_write_int_callback, }; +static struct usb_serial_driver cypress_ca42v2_device = { + .driver = { + .owner = THIS_MODULE, + .name = "nokiaca42v2", + }, + .description = "Nokia CA-42 V2 Adapter", + .id_table = id_table_nokiaca42v2, + .num_interrupt_in = 1, + .num_interrupt_out = 1, + .num_bulk_in = NUM_DONT_CARE, + .num_bulk_out = NUM_DONT_CARE, + .num_ports = 1, + .attach = cypress_ca42v2_startup, + .shutdown = cypress_shutdown, + .open = cypress_open, + .close = cypress_close, + .write = cypress_write, + .write_room = cypress_write_room, + .ioctl = cypress_ioctl, + .set_termios = cypress_set_termios, + .tiocmget = cypress_tiocmget, + .tiocmset = cypress_tiocmset, + .chars_in_buffer = cypress_chars_in_buffer, + .throttle = cypress_throttle, + .unthrottle = cypress_unthrottle, + .read_int_callback = cypress_read_int_callback, + .write_int_callback = cypress_write_int_callback, +}; /***************************************************************************** * Cypress serial helper functions @@ -286,6 +321,12 @@ static int cypress_serial_control (struct usb_serial_port *port, unsigned baud_m __FUNCTION__); new_baudrate = priv->baud_rate; } + } else if (priv->chiptype == CT_CA42V2) { + if ( (new_baudrate = mask_to_rate(baud_mask)) == -1) { + err("%s - failed setting baud rate, unsupported speed", + __FUNCTION__); + new_baudrate = priv->baud_rate; + } } else if (priv->chiptype == CT_GENERIC) { if ( (new_baudrate = mask_to_rate(baud_mask)) == -1) { err("%s - failed setting baud rate, unsupported speed", @@ -435,11 +476,10 @@ static int generic_startup (struct usb_serial *serial) dbg("%s - port %d", __FUNCTION__, serial->port[0]->number); - priv = kmalloc(sizeof (struct cypress_private), GFP_KERNEL); + priv = kzalloc(sizeof (struct cypress_private), GFP_KERNEL); if (!priv) return -ENOMEM; - memset(priv, 0x00, sizeof (struct cypress_private)); spin_lock_init(&priv->lock); priv->buf = cypress_buf_alloc(CYPRESS_BUF_SIZE); if (priv->buf == NULL) { @@ -500,6 +540,25 @@ static int cypress_hidcom_startup (struct usb_serial *serial) } /* cypress_hidcom_startup */ +static int cypress_ca42v2_startup (struct usb_serial *serial) +{ + struct cypress_private *priv; + + dbg("%s", __FUNCTION__); + + if (generic_startup(serial)) { + dbg("%s - Failed setting up port %d", __FUNCTION__, + serial->port[0]->number); + return 1; + } + + priv = usb_get_serial_port_data(serial->port[0]); + priv->chiptype = CT_CA42V2; + + return 0; +} /* cypress_ca42v2_startup */ + + static void cypress_shutdown (struct usb_serial *serial) { struct cypress_private *priv; @@ -944,6 +1003,10 @@ static void cypress_set_termios (struct usb_serial_port *port, *(tty->termios) = tty_std_termios; tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; + } else if (priv->chiptype == CT_CA42V2) { + *(tty->termios) = tty_std_termios; + tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL | + CLOCAL; } priv->termios_initialized = 1; } @@ -1542,6 +1605,9 @@ static int __init cypress_init(void) retval = usb_serial_register(&cypress_hidcom_device); if (retval) goto failed_hidcom_register; + retval = usb_serial_register(&cypress_ca42v2_device); + if (retval) + goto failed_ca42v2_register; retval = usb_register(&cypress_driver); if (retval) goto failed_usb_register; @@ -1550,6 +1616,8 @@ static int __init cypress_init(void) return 0; failed_usb_register: usb_deregister(&cypress_driver); +failed_ca42v2_register: + usb_serial_deregister(&cypress_ca42v2_device); failed_hidcom_register: usb_serial_deregister(&cypress_hidcom_device); failed_em_register: @@ -1566,6 +1634,7 @@ static void __exit cypress_exit (void) usb_deregister (&cypress_driver); usb_serial_deregister (&cypress_earthmate_device); usb_serial_deregister (&cypress_hidcom_device); + usb_serial_deregister (&cypress_ca42v2_device); } diff --git a/drivers/usb/serial/cypress_m8.h b/drivers/usb/serial/cypress_m8.h index 1fa119e..e1c7c27 100644 --- a/drivers/usb/serial/cypress_m8.h +++ b/drivers/usb/serial/cypress_m8.h @@ -18,6 +18,10 @@ /* Cypress HID->COM RS232 Adapter */ #define VENDOR_ID_CYPRESS 0x04b4 #define PRODUCT_ID_CYPHIDCOM 0x5500 + +/* Nokia CA-42 USB to serial cable */ +#define VENDOR_ID_DAZZLE 0x07d0 +#define PRODUCT_ID_CA42 0x4101 /* End of device listing */ /* Used for setting / requesting serial line settings */ @@ -34,6 +38,7 @@ #define CT_EARTHMATE 0x01 #define CT_CYPHIDCOM 0x02 +#define CT_CA42V2 0x03 #define CT_GENERIC 0x0F /* End of chiptype definitions */ diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index c145e1e..f3af81b 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -492,6 +492,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) }, { USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) }, { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) }, + { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) }, { }, /* Optional parameter entry */ { } /* Terminating entry */ }; @@ -1141,12 +1142,11 @@ static int ftdi_sio_attach (struct usb_serial *serial) dbg("%s",__FUNCTION__); - priv = kmalloc(sizeof(struct ftdi_private), GFP_KERNEL); + priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); if (!priv){ err("%s- kmalloc(%Zd) failed.", __FUNCTION__, sizeof(struct ftdi_private)); return -ENOMEM; } - memset(priv, 0, sizeof(*priv)); spin_lock_init(&priv->rx_lock); init_waitqueue_head(&priv->delta_msr_wait); diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h index bdef3b8..8da773c 100644 --- a/drivers/usb/serial/ftdi_sio.h +++ b/drivers/usb/serial/ftdi_sio.h @@ -146,6 +146,13 @@ #define KOBIL_CONV_KAAN_PID 0x2021 /* KOBIL_Konverter for KAAN */ /* + * Icom ID-1 digital transceiver + */ + +#define ICOM_ID1_VID 0x0C26 +#define ICOM_ID1_PID 0x0004 + +/* * DSS-20 Sync Station for Sony Ericsson P800 */ diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index d6f55e9..5ec9bf5 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -1422,12 +1422,11 @@ static int garmin_attach (struct usb_serial *serial) dbg("%s", __FUNCTION__); - garmin_data_p = kmalloc (sizeof(struct garmin_data), GFP_KERNEL); + garmin_data_p = kzalloc(sizeof(struct garmin_data), GFP_KERNEL); if (garmin_data_p == NULL) { dev_err(&port->dev, "%s - Out of memory\n", __FUNCTION__); return -ENOMEM; } - memset (garmin_data_p, 0, sizeof(struct garmin_data)); init_timer(&garmin_data_p->timer); spin_lock_init(&garmin_data_p->lock); INIT_LIST_HEAD(&garmin_data_p->pktlist); diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index 3f29e6b0..b606c59 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -2725,12 +2725,11 @@ static int edge_startup (struct usb_serial *serial) dev = serial->dev; /* create our private serial structure */ - edge_serial = kmalloc (sizeof(struct edgeport_serial), GFP_KERNEL); + edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); if (edge_serial == NULL) { dev_err(&serial->dev->dev, "%s - Out of memory\n", __FUNCTION__); return -ENOMEM; } - memset (edge_serial, 0, sizeof(struct edgeport_serial)); spin_lock_init(&edge_serial->es_lock); edge_serial->serial = serial; usb_set_serial_data(serial, edge_serial); diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index afc0f34..8e1e225 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -2727,12 +2727,11 @@ static int edge_startup (struct usb_serial *serial) dev = serial->dev; /* create our private serial structure */ - edge_serial = kmalloc (sizeof(struct edgeport_serial), GFP_KERNEL); + edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); if (edge_serial == NULL) { dev_err(&serial->dev->dev, "%s - Out of memory\n", __FUNCTION__); return -ENOMEM; } - memset (edge_serial, 0, sizeof(struct edgeport_serial)); sema_init(&edge_serial->es_sem, 1); edge_serial->serial = serial; usb_set_serial_data(serial, edge_serial); @@ -2745,12 +2744,11 @@ static int edge_startup (struct usb_serial *serial) /* set up our port private structures */ for (i = 0; i < serial->num_ports; ++i) { - edge_port = kmalloc (sizeof(struct edgeport_port), GFP_KERNEL); + edge_port = kzalloc(sizeof(struct edgeport_port), GFP_KERNEL); if (edge_port == NULL) { dev_err(&serial->dev->dev, "%s - Out of memory\n", __FUNCTION__); goto cleanup; } - memset (edge_port, 0, sizeof(struct edgeport_port)); spin_lock_init(&edge_port->ep_lock); edge_port->ep_out_buf = edge_buf_alloc(EDGE_OUT_BUF_SIZE); if (edge_port->ep_out_buf == NULL) { diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index a590104..426182d 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -184,10 +184,9 @@ static struct irda_class_desc *irda_usb_find_class_desc(struct usb_device *dev, struct irda_class_desc *desc; int ret; - desc = kmalloc(sizeof (struct irda_class_desc), GFP_KERNEL); + desc = kzalloc(sizeof (struct irda_class_desc), GFP_KERNEL); if (desc == NULL) return NULL; - memset(desc, 0, sizeof(struct irda_class_desc)); ret = usb_control_msg(dev, usb_rcvctrlpipe(dev,0), IU_REQ_GET_CLASS_DESC, diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 3b958e6..052b735 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -2250,12 +2250,11 @@ static int keyspan_startup (struct usb_serial *serial) } /* Setup private data for serial driver */ - s_priv = kmalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL); + s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL); if (!s_priv) { dbg("%s - kmalloc for keyspan_serial_private failed.", __FUNCTION__); return -ENOMEM; } - memset(s_priv, 0, sizeof(struct keyspan_serial_private)); s_priv->device_details = d_details; usb_set_serial_data(serial, s_priv); @@ -2263,12 +2262,11 @@ static int keyspan_startup (struct usb_serial *serial) /* Now setup per port private data */ for (i = 0; i < serial->num_ports; i++) { port = serial->port[i]; - p_priv = kmalloc(sizeof(struct keyspan_port_private), GFP_KERNEL); + p_priv = kzalloc(sizeof(struct keyspan_port_private), GFP_KERNEL); if (!p_priv) { dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __FUNCTION__, i); return (1); } - memset(p_priv, 0, sizeof(struct keyspan_port_private)); p_priv->device_details = d_details; usb_set_serial_port_data(port, p_priv); } diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c index b8b2131..87dfcd8 100644 --- a/drivers/usb/serial/kobil_sct.c +++ b/drivers/usb/serial/kobil_sct.c @@ -255,11 +255,9 @@ static int kobil_open (struct usb_serial_port *port, struct file *filp) } // allocate memory for transfer buffer - transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL); + transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); if (! transfer_buffer) { return -ENOMEM; - } else { - memset(transfer_buffer, 0, transfer_buffer_length); } // allocate write_urb @@ -383,11 +381,10 @@ static void kobil_read_int_callback( struct urb *purb, struct pt_regs *regs) // BEGIN DEBUG /* - dbg_data = (unsigned char *) kmalloc((3 * purb->actual_length + 10) * sizeof(char), GFP_KERNEL); + dbg_data = kzalloc((3 * purb->actual_length + 10) * sizeof(char), GFP_KERNEL); if (! dbg_data) { return; } - memset(dbg_data, 0, (3 * purb->actual_length + 10)); for (i = 0; i < purb->actual_length; i++) { sprintf(dbg_data +3*i, "%02X ", data[i]); } @@ -518,11 +515,10 @@ static int kobil_tiocmget(struct usb_serial_port *port, struct file *file) } // allocate memory for transfer buffer - transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL); + transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); if (!transfer_buffer) { return -ENOMEM; } - memset(transfer_buffer, 0, transfer_buffer_length); result = usb_control_msg( port->serial->dev, usb_rcvctrlpipe(port->serial->dev, 0 ), @@ -564,11 +560,10 @@ static int kobil_tiocmset(struct usb_serial_port *port, struct file *file, } // allocate memory for transfer buffer - transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length, GFP_KERNEL); + transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); if (! transfer_buffer) { return -ENOMEM; } - memset(transfer_buffer, 0, transfer_buffer_length); if (set & TIOCM_RTS) rts = 1; @@ -655,11 +650,10 @@ static int kobil_ioctl(struct usb_serial_port *port, struct file *file, (struct termios __user *)arg)) return -EFAULT; - settings = (unsigned char *) kmalloc(50, GFP_KERNEL); + settings = kzalloc(50, GFP_KERNEL); if (! settings) { return -ENOBUFS; } - memset(settings, 0, 50); switch (priv->internal_termios.c_cflag & CBAUD) { case B1200: diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index b6d6cab..35bd29b 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -348,10 +348,9 @@ static int mct_u232_startup (struct usb_serial *serial) struct mct_u232_private *priv; struct usb_serial_port *port, *rport; - priv = kmalloc(sizeof(struct mct_u232_private), GFP_KERNEL); + priv = kzalloc(sizeof(struct mct_u232_private), GFP_KERNEL); if (!priv) return -ENOMEM; - memset(priv, 0, sizeof(struct mct_u232_private)); spin_lock_init(&priv->lock); usb_set_serial_port_data(serial->port[0], priv); diff --git a/drivers/usb/serial/navman.c b/drivers/usb/serial/navman.c new file mode 100644 index 0000000..7f54408 --- /dev/null +++ b/drivers/usb/serial/navman.c @@ -0,0 +1,157 @@ +/* + * Navman Serial USB driver + * + * Copyright (C) 2006 Greg Kroah-Hartman <gregkh@suse.de> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/tty.h> +#include <linux/tty_flip.h> +#include <linux/module.h> +#include <linux/usb.h> +#include "usb-serial.h" + +static int debug; + +static struct usb_device_id id_table [] = { + { USB_DEVICE(0x0a99, 0x0001) }, /* Talon Technology device */ + { }, +}; +MODULE_DEVICE_TABLE(usb, id_table); + +static struct usb_driver navman_driver = { + .name = "navman", + .probe = usb_serial_probe, + .disconnect = usb_serial_disconnect, + .id_table = id_table, + .no_dynamic_id = 1, +}; + +static void navman_read_int_callback(struct urb *urb, struct pt_regs *regs) +{ + struct usb_serial_port *port = urb->context; + unsigned char *data = urb->transfer_buffer; + struct tty_struct *tty; + int result; + + switch (urb->status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* this urb is terminated, clean up */ + dbg("%s - urb shutting down with status: %d", + __FUNCTION__, urb->status); + return; + default: + dbg("%s - nonzero urb status received: %d", + __FUNCTION__, urb->status); + goto exit; + } + + usb_serial_debug_data(debug, &port->dev, __FUNCTION__, + urb->actual_length, data); + + tty = port->tty; + if (tty && urb->actual_length) { + tty_buffer_request_room(tty, urb->actual_length); + tty_insert_flip_string(tty, data, urb->actual_length); + tty_flip_buffer_push(tty); + } + +exit: + result = usb_submit_urb(urb, GFP_ATOMIC); + if (result) + dev_err(&urb->dev->dev, + "%s - Error %d submitting interrupt urb\n", + __FUNCTION__, result); +} + +static int navman_open(struct usb_serial_port *port, struct file *filp) +{ + int result = 0; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (port->interrupt_in_urb) { + dbg("%s - adding interrupt input for treo", __FUNCTION__); + result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); + if (result) + dev_err(&port->dev, + "%s - failed submitting interrupt urb, error %d\n", + __FUNCTION__, result); + } + return result; +} + +static void navman_close(struct usb_serial_port *port, struct file *filp) +{ + dbg("%s - port %d", __FUNCTION__, port->number); + + if (port->interrupt_in_urb) + usb_kill_urb(port->interrupt_in_urb); +} + +static int navman_write(struct usb_serial_port *port, + const unsigned char *buf, int count) +{ + dbg("%s - port %d", __FUNCTION__, port->number); + + /* + * This device can't write any data, only read from the device + * so we just silently eat all data sent to us and say it was + * successfully sent. + * Evil, I know, but do you have a better idea? + */ + + return count; +} + +static struct usb_serial_driver navman_device = { + .driver = { + .owner = THIS_MODULE, + .name = "navman", + }, + .id_table = id_table, + .num_interrupt_in = NUM_DONT_CARE, + .num_bulk_in = NUM_DONT_CARE, + .num_bulk_out = NUM_DONT_CARE, + .num_ports = 1, + .open = navman_open, + .close = navman_close, + .write = navman_write, + .read_int_callback = navman_read_int_callback, +}; + +static int __init navman_init(void) +{ + int retval; + + retval = usb_serial_register(&navman_device); + if (retval) + return retval; + retval = usb_register(&navman_driver); + if (retval) + usb_serial_deregister(&navman_device); + return retval; +} + +static void __exit navman_exit(void) +{ + usb_deregister(&navman_driver); + usb_serial_deregister(&navman_device); +} + +module_init(navman_init); +module_exit(navman_exit); +MODULE_LICENSE("GPL"); + +module_param(debug, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "Debug enabled or not"); diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index 762d8ff..4d40704 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -204,7 +204,7 @@ static void omninet_read_bulk_callback (struct urb *urb, struct pt_regs *regs) int i; int result; -// dbg("omninet_read_bulk_callback"); + dbg("%s - port %d", __FUNCTION__, port->number); if (urb->status) { dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); @@ -250,7 +250,7 @@ static int omninet_write (struct usb_serial_port *port, const unsigned char *buf int result; -// dbg("omninet_write port %d", port->number); + dbg("%s - port %d", __FUNCTION__, port->number); if (count == 0) { dbg("%s - write request of 0 bytes", __FUNCTION__); @@ -302,7 +302,7 @@ static int omninet_write_room (struct usb_serial_port *port) if (wport->write_urb_busy) room = wport->bulk_out_size - OMNINET_HEADERLEN; -// dbg("omninet_write_room returns %d", room); + dbg("%s - returns %d", __FUNCTION__, room); return (room); } @@ -312,7 +312,7 @@ static void omninet_write_bulk_callback (struct urb *urb, struct pt_regs *regs) /* struct omninet_header *header = (struct omninet_header *) urb->transfer_buffer; */ struct usb_serial_port *port = (struct usb_serial_port *) urb->context; -// dbg("omninet_write_bulk_callback, port %0x\n", port); + dbg("%s - port %0x\n", __FUNCTION__, port->number); port->write_urb_busy = 0; if (urb->status) { @@ -321,8 +321,6 @@ static void omninet_write_bulk_callback (struct urb *urb, struct pt_regs *regs) } schedule_work(&port->work); - -// dbg("omninet_write_bulk_callback, tty %0x\n", tty); } diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 52bdf6f..a8455c9 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -631,13 +631,12 @@ static int option_startup(struct usb_serial *serial) /* Now setup per port private data */ for (i = 0; i < serial->num_ports; i++) { port = serial->port[i]; - portdata = kmalloc(sizeof(*portdata), GFP_KERNEL); + portdata = kzalloc(sizeof(*portdata), GFP_KERNEL); if (!portdata) { dbg("%s: kmalloc for option_port_private (%d) failed!.", __FUNCTION__, i); return (1); } - memset(portdata, 0, sizeof(struct option_port_private)); usb_set_serial_port_data(port, portdata); diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 37c81c0..b3014fd 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -77,6 +77,7 @@ static struct usb_device_id id_table [] = { { USB_DEVICE(CA_42_CA42_VENDOR_ID, CA_42_CA42_PRODUCT_ID) }, { USB_DEVICE(SAGEM_VENDOR_ID, SAGEM_PRODUCT_ID) }, { USB_DEVICE(LEADTEK_VENDOR_ID, LEADTEK_9531_PRODUCT_ID) }, + { USB_DEVICE(SPEEDDRAGON_VENDOR_ID, SPEEDDRAGON_PRODUCT_ID) }, { } /* Terminating entry */ }; @@ -218,10 +219,9 @@ static int pl2303_startup (struct usb_serial *serial) dbg("device type: %d", type); for (i = 0; i < serial->num_ports; ++i) { - priv = kmalloc (sizeof (struct pl2303_private), GFP_KERNEL); + priv = kzalloc(sizeof(struct pl2303_private), GFP_KERNEL); if (!priv) goto cleanup; - memset (priv, 0x00, sizeof (struct pl2303_private)); spin_lock_init(&priv->lock); priv->buf = pl2303_buf_alloc(PL2303_BUF_SIZE); if (priv->buf == NULL) { @@ -383,12 +383,11 @@ static void pl2303_set_termios (struct usb_serial_port *port, struct termios *ol } } - buf = kmalloc (7, GFP_KERNEL); + buf = kzalloc (7, GFP_KERNEL); if (!buf) { dev_err(&port->dev, "%s - out of memory.\n", __FUNCTION__); return; } - memset (buf, 0x00, 0x07); i = usb_control_msg (serial->dev, usb_rcvctrlpipe (serial->dev, 0), GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, @@ -828,6 +827,7 @@ static void pl2303_update_line_status(struct usb_serial_port *port, spin_lock_irqsave(&priv->lock, flags); priv->line_status = data[status_idx]; spin_unlock_irqrestore(&priv->lock, flags); + wake_up_interruptible (&priv->delta_msr_wait); exit: return; diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h index 9bc4755..77901d1 100644 --- a/drivers/usb/serial/pl2303.h +++ b/drivers/usb/serial/pl2303.h @@ -75,3 +75,7 @@ /* Leadtek GPS 9531 (ID 0413:2101) */ #define LEADTEK_VENDOR_ID 0x0413 #define LEADTEK_9531_PRODUCT_ID 0x2101 + +/* USB GSM cable from Speed Dragon Multimedia, Ltd */ +#define SPEEDDRAGON_VENDOR_ID 0x0e55 +#define SPEEDDRAGON_PRODUCT_ID 0x110b diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index c18db32..c3a2071 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -416,12 +416,11 @@ static int ti_startup(struct usb_serial *serial) dev->actconfig->desc.bConfigurationValue); /* create device structure */ - tdev = kmalloc(sizeof(struct ti_device), GFP_KERNEL); + tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL); if (tdev == NULL) { dev_err(&dev->dev, "%s - out of memory\n", __FUNCTION__); return -ENOMEM; } - memset(tdev, 0, sizeof(struct ti_device)); sema_init(&tdev->td_open_close_sem, 1); tdev->td_serial = serial; usb_set_serial_data(serial, tdev); diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index b5c96e7..097f4e8 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -564,12 +564,11 @@ static struct usb_serial * create_serial (struct usb_device *dev, { struct usb_serial *serial; - serial = kmalloc (sizeof (*serial), GFP_KERNEL); + serial = kzalloc(sizeof(*serial), GFP_KERNEL); if (!serial) { dev_err(&dev->dev, "%s - out of memory\n", __FUNCTION__); return NULL; } - memset (serial, 0, sizeof(*serial)); serial->dev = usb_get_dev(dev); serial->type = driver; serial->interface = interface; @@ -778,10 +777,9 @@ int usb_serial_probe(struct usb_interface *interface, serial->num_port_pointers = max_endpoints; dbg("%s - setting up %d port structures for this device", __FUNCTION__, max_endpoints); for (i = 0; i < max_endpoints; ++i) { - port = kmalloc(sizeof(struct usb_serial_port), GFP_KERNEL); + port = kzalloc(sizeof(struct usb_serial_port), GFP_KERNEL); if (!port) goto probe_error; - memset(port, 0x00, sizeof(struct usb_serial_port)); port->number = i + serial->minor; port->serial = serial; spin_lock_init(&port->lock); diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index 11a48d8..f5c3841 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -763,10 +763,9 @@ static int generic_startup(struct usb_serial *serial) int i; for (i = 0; i < serial->num_ports; ++i) { - priv = kmalloc (sizeof(*priv), GFP_KERNEL); + priv = kzalloc (sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; - memset (priv, 0x00, sizeof(*priv)); spin_lock_init(&priv->lock); usb_set_serial_port_data(serial->port[i], priv); } diff --git a/drivers/usb/storage/datafab.c b/drivers/usb/storage/datafab.c index 54e3e6c7ec..01d8971 100644 --- a/drivers/usb/storage/datafab.c +++ b/drivers/usb/storage/datafab.c @@ -512,13 +512,12 @@ int datafab_transport(struct scsi_cmnd * srb, struct us_data *us) }; if (!us->extra) { - us->extra = kmalloc(sizeof(struct datafab_info), GFP_NOIO); + us->extra = kzalloc(sizeof(struct datafab_info), GFP_NOIO); if (!us->extra) { US_DEBUGP("datafab_transport: Gah! " "Can't allocate storage for Datafab info struct!\n"); return USB_STOR_TRANSPORT_ERROR; } - memset(us->extra, 0, sizeof(struct datafab_info)); us->extra_destructor = datafab_info_destructor; ((struct datafab_info *)us->extra)->lun = -1; } diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c index ecb328a..6831dca 100644 --- a/drivers/usb/storage/isd200.c +++ b/drivers/usb/storage/isd200.c @@ -1361,21 +1361,19 @@ static int isd200_init_info(struct us_data *us) struct isd200_info *info; info = (struct isd200_info *) - kmalloc(sizeof(struct isd200_info), GFP_KERNEL); + kzalloc(sizeof(struct isd200_info), GFP_KERNEL); if (!info) retStatus = ISD200_ERROR; else { - memset(info, 0, sizeof(struct isd200_info)); info->id = (struct hd_driveid *) - kmalloc(sizeof(struct hd_driveid), GFP_KERNEL); + kzalloc(sizeof(struct hd_driveid), GFP_KERNEL); info->RegsBuf = (unsigned char *) kmalloc(sizeof(info->ATARegs), GFP_KERNEL); if (!info->id || !info->RegsBuf) { isd200_free_info_ptrs(info); kfree(info); retStatus = ISD200_ERROR; - } else - memset(info->id, 0, sizeof(struct hd_driveid)); + } } if (retStatus == ISD200_GOOD) { @@ -1384,7 +1382,7 @@ static int isd200_init_info(struct us_data *us) } else US_DEBUGP("ERROR - kmalloc failure\n"); - return(retStatus); + return retStatus; } /************************************************************************** diff --git a/drivers/usb/storage/jumpshot.c b/drivers/usb/storage/jumpshot.c index aff9d51..5031aa9 100644 --- a/drivers/usb/storage/jumpshot.c +++ b/drivers/usb/storage/jumpshot.c @@ -441,12 +441,11 @@ int jumpshot_transport(struct scsi_cmnd * srb, struct us_data *us) }; if (!us->extra) { - us->extra = kmalloc(sizeof(struct jumpshot_info), GFP_NOIO); + us->extra = kzalloc(sizeof(struct jumpshot_info), GFP_NOIO); if (!us->extra) { US_DEBUGP("jumpshot_transport: Gah! Can't allocate storage for jumpshot info struct!\n"); return USB_STOR_TRANSPORT_ERROR; } - memset(us->extra, 0, sizeof(struct jumpshot_info)); us->extra_destructor = jumpshot_info_destructor; } diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index 4ef5527..5f11e19 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -47,6 +47,7 @@ #include <linux/slab.h> #include <linux/module.h> +#include <linux/mutex.h> #include <scsi/scsi.h> #include <scsi/scsi_cmnd.h> @@ -271,9 +272,9 @@ static int device_reset(struct scsi_cmnd *srb) US_DEBUGP("%s called\n", __FUNCTION__); /* lock the device pointers and do the reset */ - down(&(us->dev_semaphore)); + mutex_lock(&(us->dev_mutex)); result = us->transport_reset(us); - up(&(us->dev_semaphore)); + mutex_unlock(&us->dev_mutex); return result < 0 ? FAILED : SUCCESS; } @@ -286,9 +287,9 @@ static int bus_reset(struct scsi_cmnd *srb) US_DEBUGP("%s called\n", __FUNCTION__); - down(&(us->dev_semaphore)); + mutex_lock(&(us->dev_mutex)); result = usb_stor_port_reset(us); - up(&(us->dev_semaphore)); + mutex_unlock(&us->dev_mutex); return result < 0 ? FAILED : SUCCESS; } diff --git a/drivers/usb/storage/sddr55.c b/drivers/usb/storage/sddr55.c index 8451779..0b1b5b5 100644 --- a/drivers/usb/storage/sddr55.c +++ b/drivers/usb/storage/sddr55.c @@ -751,11 +751,10 @@ int sddr55_transport(struct scsi_cmnd *srb, struct us_data *us) struct sddr55_card_info *info; if (!us->extra) { - us->extra = kmalloc( + us->extra = kzalloc( sizeof(struct sddr55_card_info), GFP_NOIO); if (!us->extra) return USB_STOR_TRANSPORT_ERROR; - memset(us->extra, 0, sizeof(struct sddr55_card_info)); us->extra_destructor = sddr55_card_info_destructor; } diff --git a/drivers/usb/storage/shuttle_usbat.c b/drivers/usb/storage/shuttle_usbat.c index fea176d..f2bc5c9 100644 --- a/drivers/usb/storage/shuttle_usbat.c +++ b/drivers/usb/storage/shuttle_usbat.c @@ -1318,12 +1318,11 @@ int init_usbat(struct us_data *us) unsigned char subcountL = USBAT_ATA_LBA_ME; unsigned char *status = us->iobuf; - us->extra = kmalloc(sizeof(struct usbat_info), GFP_NOIO); + us->extra = kzalloc(sizeof(struct usbat_info), GFP_NOIO); if (!us->extra) { US_DEBUGP("init_usbat: Gah! Can't allocate storage for usbat info struct!\n"); return 1; } - memset(us->extra, 0, sizeof(struct usbat_info)); info = (struct usbat_info *) (us->extra); /* Enable peripheral control signals */ diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 31ca920..c4a9dcf 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -62,6 +62,13 @@ UNUSUAL_DEV( 0x03ee, 0x6901, 0x0000, 0x0100, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_SINGLE_LUN ), +/* Reported by Rodolfo Quesada <rquesada@roqz.net> */ +UNUSUAL_DEV( 0x03ee, 0x6906, 0x0003, 0x0003, + "VIA Technologies Inc.", + "Mitsumi multi cardreader", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_IGNORE_RESIDUE ), + UNUSUAL_DEV( 0x03f0, 0x0107, 0x0200, 0x0200, "HP", "CD-Writer+", @@ -120,6 +127,12 @@ UNUSUAL_DEV( 0x0419, 0xaaf6, 0x0100, 0x0100, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE ), +/* Reported by Pete Zaitcev <zaitcev@redhat.com>, bz#176584 */ +UNUSUAL_DEV( 0x0420, 0x0001, 0x0100, 0x0100, + "GENERIC", "MP3 PLAYER", /* MyMusix PD-205 on the outside. */ + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_IGNORE_RESIDUE ), + /* Reported by Olaf Hering <olh@suse.de> from novell bug #105878 */ UNUSUAL_DEV( 0x0424, 0x0fdc, 0x0210, 0x0210, "SMSC", @@ -760,12 +773,19 @@ UNUSUAL_DEV( 0x069b, 0x3004, 0x0001, 0x0001, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_FIX_CAPACITY ), -UNUSUAL_DEV( 0x0781, 0x0001, 0x0200, 0x0200, +/* Submitted by Roman Hodek <roman@hodek.net> */ +UNUSUAL_DEV( 0x0781, 0x0001, 0x0200, 0x0200, "Sandisk", "ImageMate SDDR-05a", US_SC_SCSI, US_PR_CB, NULL, US_FL_SINGLE_LUN ), +UNUSUAL_DEV( 0x0781, 0x0002, 0x0009, 0x0009, + "SanDisk Corporation", + "ImageMate CompactFlash USB", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_FIX_CAPACITY ), + #ifdef CONFIG_USB_STORAGE_USBAT UNUSUAL_DEV( 0x0781, 0x0005, 0x0005, 0x0005, "Sandisk", @@ -1073,6 +1093,16 @@ UNUSUAL_DEV( 0x0c0b, 0xa109, 0x0000, 0xffff, 0), #endif +/* + * Pete Zaitcev <zaitcev@yahoo.com>, bz#164688. + * The device blatantly ignores LUN and returns 1 in GetMaxLUN. + */ +UNUSUAL_DEV( 0x0c45, 0x1060, 0x0100, 0x0100, + "Unknown", + "Unknown", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_SINGLE_LUN ), + /* Submitted by Joris Struyve <joris@struyve.be> */ UNUSUAL_DEV( 0x0d96, 0x410a, 0x0001, 0xffff, "Medion", diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index dbcf239..dd108634 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -55,6 +55,7 @@ #include <linux/init.h> #include <linux/slab.h> #include <linux/kthread.h> +#include <linux/mutex.h> #include <scsi/scsi.h> #include <scsi/scsi_cmnd.h> @@ -188,7 +189,7 @@ static int storage_suspend(struct usb_interface *iface, pm_message_t message) struct us_data *us = usb_get_intfdata(iface); /* Wait until no command is running */ - down(&us->dev_semaphore); + mutex_lock(&us->dev_mutex); US_DEBUGP("%s\n", __FUNCTION__); if (us->suspend_resume_hook) @@ -198,7 +199,7 @@ static int storage_suspend(struct usb_interface *iface, pm_message_t message) /* When runtime PM is working, we'll set a flag to indicate * whether we should autoresume when a SCSI request arrives. */ - up(&us->dev_semaphore); + mutex_unlock(&us->dev_mutex); return 0; } @@ -206,14 +207,14 @@ static int storage_resume(struct usb_interface *iface) { struct us_data *us = usb_get_intfdata(iface); - down(&us->dev_semaphore); + mutex_lock(&us->dev_mutex); US_DEBUGP("%s\n", __FUNCTION__); if (us->suspend_resume_hook) (us->suspend_resume_hook)(us, US_RESUME); iface->dev.power.power_state.event = PM_EVENT_ON; - up(&us->dev_semaphore); + mutex_unlock(&us->dev_mutex); return 0; } @@ -276,12 +277,12 @@ static int usb_stor_control_thread(void * __us) US_DEBUGP("*** thread awakened.\n"); /* lock the device pointers */ - down(&(us->dev_semaphore)); + mutex_lock(&(us->dev_mutex)); /* if the device has disconnected, we are free to exit */ if (test_bit(US_FLIDX_DISCONNECTING, &us->flags)) { US_DEBUGP("-- exiting\n"); - up(&(us->dev_semaphore)); + mutex_unlock(&us->dev_mutex); break; } @@ -370,7 +371,7 @@ SkipForAbort: scsi_unlock(host); /* unlock the device pointers */ - up(&(us->dev_semaphore)); + mutex_unlock(&us->dev_mutex); } /* for (;;) */ scsi_host_put(host); @@ -815,8 +816,8 @@ static void quiesce_and_remove_host(struct us_data *us) * The thread will exit when it sees the DISCONNECTING flag. */ /* Wait for the current command to finish, then remove the host */ - down(&us->dev_semaphore); - up(&us->dev_semaphore); + mutex_lock(&us->dev_mutex); + mutex_unlock(&us->dev_mutex); /* queuecommand won't accept any new commands and the control * thread won't execute a previously-queued command. If there @@ -870,9 +871,9 @@ retry: /* For bulk-only devices, determine the max LUN value */ if (us->protocol == US_PR_BULK && !(us->flags & US_FL_SINGLE_LUN)) { - down(&us->dev_semaphore); + mutex_lock(&us->dev_mutex); us->max_lun = usb_stor_Bulk_max_lun(us); - up(&us->dev_semaphore); + mutex_unlock(&us->dev_mutex); } scsi_scan_host(us_to_host(us)); printk(KERN_DEBUG "usb-storage: device scan complete\n"); @@ -912,7 +913,7 @@ static int storage_probe(struct usb_interface *intf, us = host_to_us(host); memset(us, 0, sizeof(struct us_data)); - init_MUTEX(&(us->dev_semaphore)); + mutex_init(&(us->dev_mutex)); init_MUTEX_LOCKED(&(us->sema)); init_completion(&(us->notify)); init_waitqueue_head(&us->delay_wait); diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h index 7259fd1..009fb095 100644 --- a/drivers/usb/storage/usb.h +++ b/drivers/usb/storage/usb.h @@ -49,6 +49,7 @@ #include <linux/blkdev.h> #include <linux/smp_lock.h> #include <linux/completion.h> +#include <linux/mutex.h> #include <scsi/scsi_host.h> struct us_data; @@ -103,9 +104,9 @@ typedef void (*pm_hook)(struct us_data *, int); /* power management hook */ struct us_data { /* The device we're working with * It's important to note: - * (o) you must hold dev_semaphore to change pusb_dev + * (o) you must hold dev_mutex to change pusb_dev */ - struct semaphore dev_semaphore; /* protect pusb_dev */ + struct mutex dev_mutex; /* protect pusb_dev */ struct usb_device *pusb_dev; /* this usb_device */ struct usb_interface *pusb_intf; /* this interface */ struct us_unusual_dev *unusual_dev; /* device-filter entry */ diff --git a/include/asm-mips/mach-mips/cpu-feature-overrides.h b/include/asm-mips/mach-mips/cpu-feature-overrides.h index 9f92aed..e06af6c 100644 --- a/include/asm-mips/mach-mips/cpu-feature-overrides.h +++ b/include/asm-mips/mach-mips/cpu-feature-overrides.h @@ -29,7 +29,11 @@ /* #define cpu_has_prefetch ? */ #define cpu_has_mcheck 1 /* #define cpu_has_ejtag ? */ +#ifdef CONFIG_CPU_HAS_LLSC #define cpu_has_llsc 1 +#else +#define cpu_has_llsc 0 +#endif /* #define cpu_has_vtag_icache ? */ /* #define cpu_has_dc_aliases ? */ /* #define cpu_has_ic_fills_f_dc ? */ diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h index a9f1cfd..a3a0e07 100644 --- a/include/linux/fsl_devices.h +++ b/include/linux/fsl_devices.h @@ -83,5 +83,32 @@ struct fsl_i2c_platform_data { #define FSL_I2C_DEV_SEPARATE_DFSRR 0x00000001 #define FSL_I2C_DEV_CLOCK_5200 0x00000002 + +enum fsl_usb2_operating_modes { + FSL_USB2_MPH_HOST, + FSL_USB2_DR_HOST, + FSL_USB2_DR_DEVICE, + FSL_USB2_DR_OTG, +}; + +enum fsl_usb2_phy_modes { + FSL_USB2_PHY_NONE, + FSL_USB2_PHY_ULPI, + FSL_USB2_PHY_UTMI, + FSL_USB2_PHY_UTMI_WIDE, + FSL_USB2_PHY_SERIAL, +}; + +struct fsl_usb2_platform_data { + /* board specific information */ + enum fsl_usb2_operating_modes operating_mode; + enum fsl_usb2_phy_modes phy_mode; + unsigned int port_enables; +}; + +/* Flags in fsl_usb2_mph_platform_data */ +#define FSL_USB2_PORT0_ENABLED 0x00000001 +#define FSL_USB2_PORT1_ENABLED 0x00000002 + #endif /* _FSL_DEVICE_H_ */ #endif /* __KERNEL__ */ diff --git a/include/linux/usb.h b/include/linux/usb.h index 827cc6d..130d125 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1018,8 +1018,6 @@ extern int usb_get_descriptor(struct usb_device *dev, unsigned char desctype, unsigned char descindex, void *buf, int size); extern int usb_get_status(struct usb_device *dev, int type, int target, void *data); -extern int usb_get_string(struct usb_device *dev, - unsigned short langid, unsigned char index, void *buf, int size); extern int usb_string(struct usb_device *dev, int index, char *buf, size_t size); diff --git a/include/linux/usb_gadget.h b/include/linux/usb_gadget.h index ff81117..1d78870 100644 --- a/include/linux/usb_gadget.h +++ b/include/linux/usb_gadget.h @@ -801,7 +801,9 @@ struct usb_gadget_driver { * Call this in your gadget driver's module initialization function, * to tell the underlying usb controller driver about your driver. * The driver's bind() function will be called to bind it to a - * gadget. This function must be called in a context that can sleep. + * gadget before this registration call returns. It's expected that + * the bind() functions will be in init sections. + * This function must be called in a context that can sleep. */ int usb_gadget_register_driver (struct usb_gadget_driver *driver); @@ -814,7 +816,8 @@ int usb_gadget_register_driver (struct usb_gadget_driver *driver); * going away. If the controller is connected to a USB host, * it will first disconnect(). The driver is also requested * to unbind() and clean up any device state, before this procedure - * finally returns. + * finally returns. It's expected that the unbind() functions + * will in in exit sections, so may not be linked in some kernels. * This function must be called in a context that can sleep. */ int usb_gadget_unregister_driver (struct usb_gadget_driver *driver); |
