diff options
135 files changed, 9085 insertions, 3167 deletions
diff --git a/Documentation/ABI/testing/sysfs-module b/Documentation/ABI/testing/sysfs-module index cfcec3b..9489ea8 100644 --- a/Documentation/ABI/testing/sysfs-module +++ b/Documentation/ABI/testing/sysfs-module @@ -10,3 +10,26 @@ KernelVersion: 2.6.35 Contact: masa-korg@dsn.okisemi.com Description: Write/read Option ROM data. + +What: /sys/module/ehci_hcd/drivers/.../uframe_periodic_max +Date: July 2011 +KernelVersion: 3.1 +Contact: Kirill Smelkov <kirr@mns.spb.ru> +Description: Maximum time allowed for periodic transfers per microframe (μs) + + [ USB 2.0 sets maximum allowed time for periodic transfers per + microframe to be 80%, that is 100 microseconds out of 125 + microseconds (full microframe). + + However there are cases, when 80% max isochronous bandwidth is + too limiting. For example two video streams could require 110 + microseconds of isochronous bandwidth per microframe to work + together. ] + + Through this setting it is possible to raise the limit so that + the host controller would allow allocating more than 100 + microseconds of periodic bandwidth per microframe. + + Beware, non-standard modes are usually not thoroughly tested by + hardware designers, and the hardware can malfunction when this + setting differ from default 100. diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index aca4f82..9becc5e 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -569,3 +569,10 @@ Why: Just opening a V4L device should not change the state of the hardware Who: Hans Verkuil <hans.verkuil@cisco.com> ---------------------------- + +What: g_file_storage driver +When: 3.8 +Why: This driver has been superseded by g_mass_storage. +Who: Alan Stern <stern@rowland.harvard.edu> + +---------------------------- diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 2d1e14c..a70e43e 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2545,6 +2545,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted. unknown_nmi_panic [X86] Cause panic on unknown NMI. + usbcore.authorized_default= + [USB] Default USB device authorization: + (default -1 = authorized except for wireless USB, + 0 = not authorized, 1 = authorized) + usbcore.autosuspend= [USB] The autosuspend time delay (in seconds) used for newly-detected USB devices (default 2). This diff --git a/Documentation/usb/ehci.txt b/Documentation/usb/ehci.txt index 9dcafa7..160bd6c 100644 --- a/Documentation/usb/ehci.txt +++ b/Documentation/usb/ehci.txt @@ -210,3 +210,5 @@ TBD: Interrupt and ISO transfer performance issues. Those periodic transfers are fully scheduled, so the main issue is likely to be how to trigger "high bandwidth" modes. +TBD: More than standard 80% periodic bandwidth allocation is possible +through sysfs uframe_periodic_max parameter. Describe that. diff --git a/Documentation/usb/gadget_hid.txt b/Documentation/usb/gadget_hid.txt index f4a51f5..12696c2 100644 --- a/Documentation/usb/gadget_hid.txt +++ b/Documentation/usb/gadget_hid.txt @@ -81,8 +81,8 @@ Send and receive HID reports to do this. hid_gadget_test is a small interactive program to test the HID - gadget driver. To use, point it at a hidg device and set the - device type (keyboard / mouse / joystick) - E.G.: + gadget driver. To use, point it at a hidg device and set the + device type (keyboard / mouse / joystick) - E.G.: # hid_gadget_test /dev/hidg0 keyboard @@ -97,7 +97,7 @@ Send and receive HID reports HID gadget. Another interesting example is the caps lock test. Type - -–caps-lock and hit return. A report is then sent by the + --caps-lock and hit return. A report is then sent by the gadget and you should receive the host answer, corresponding to the caps lock LED status. diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c index c7ed540..a65145b 100644 --- a/arch/arm/mach-omap2/usb-musb.c +++ b/arch/arm/mach-omap2/usb-musb.c @@ -33,8 +33,6 @@ #include <plat/omap_device.h> #include "mux.h" -#if defined(CONFIG_USB_MUSB_OMAP2PLUS) || defined (CONFIG_USB_MUSB_AM35X) - static struct musb_hdrc_config musb_config = { .multipoint = 1, .dyn_fifo = 1, @@ -175,11 +173,3 @@ void __init usb_musb_init(struct omap_musb_board_data *musb_board_data) if (cpu_is_omap44xx()) omap4430_phy_init(dev); } - -#else -void __init usb_musb_init(struct omap_musb_board_data *board_data) -{ - if (cpu_is_omap44xx()) - omap4430_phy_init(NULL); -} -#endif /* CONFIG_USB_MUSB_SOC */ diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c index e71521c..428f368 100644 --- a/drivers/usb/atm/ueagle-atm.c +++ b/drivers/usb/atm/ueagle-atm.c @@ -116,14 +116,14 @@ struct uea_cmvs_v1 { u32 address; u16 offset; u32 data; -} __attribute__ ((packed)); +} __packed; struct uea_cmvs_v2 { u32 group; u32 address; u32 offset; u32 data; -} __attribute__ ((packed)); +} __packed; /* information about currently processed cmv */ struct cmv_dsc_e1 { @@ -352,7 +352,7 @@ struct block_index { __le32 PageAddress; __le16 dummy1; __le16 PageNumber; -} __attribute__ ((packed)); +} __packed; #define E4_IS_BOOT_PAGE(PageSize) ((le32_to_cpu(PageSize)) & 0x80000000) #define E4_PAGE_BYTES(PageSize) ((le32_to_cpu(PageSize) & 0x7fffffff) * 4) @@ -367,7 +367,7 @@ struct l1_code { u8 page_number_to_block_index[E4_MAX_PAGE_NUMBER]; struct block_index page_header[E4_NO_SWAPPAGE_HEADERS]; u8 code[0]; -} __attribute__ ((packed)); +} __packed; /* structures describing a block within a DSP page */ struct block_info_e1 { @@ -377,7 +377,7 @@ struct block_info_e1 { __le16 wOvlOffset; __le16 wOvl; /* overlay */ __le16 wLast; -} __attribute__ ((packed)); +} __packed; #define E1_BLOCK_INFO_SIZE 12 struct block_info_e4 { @@ -387,7 +387,7 @@ struct block_info_e4 { __be32 dwSize; __be32 dwAddress; __be16 wReserved; -} __attribute__ ((packed)); +} __packed; #define E4_BLOCK_INFO_SIZE 14 #define UEA_BIHDR 0xabcd @@ -467,7 +467,7 @@ struct cmv_e1 { __le32 dwSymbolicAddress; __le16 wOffsetAddress; __le32 dwData; -} __attribute__ ((packed)); +} __packed; struct cmv_e4 { __be16 wGroup; @@ -475,17 +475,17 @@ struct cmv_e4 { __be16 wOffset; __be16 wAddress; __be32 dwData[6]; -} __attribute__ ((packed)); +} __packed; /* structures representing swap information */ struct swap_info_e1 { __u8 bSwapPageNo; __u8 bOvl; /* overlay */ -} __attribute__ ((packed)); +} __packed; struct swap_info_e4 { __u8 bSwapPageNo; -} __attribute__ ((packed)); +} __packed; /* structures representing interrupt data */ #define e1_bSwapPageNo u.e1.s1.swapinfo.bSwapPageNo @@ -499,23 +499,23 @@ union intr_data_e1 { struct { struct swap_info_e1 swapinfo; __le16 wDataSize; - } __attribute__ ((packed)) s1; + } __packed s1; struct { struct cmv_e1 cmv; __le16 wDataSize; - } __attribute__ ((packed)) s2; -} __attribute__ ((packed)); + } __packed s2; +} __packed; union intr_data_e4 { struct { struct swap_info_e4 swapinfo; __le16 wDataSize; - } __attribute__ ((packed)) s1; + } __packed s1; struct { struct cmv_e4 cmv; __le16 wDataSize; - } __attribute__ ((packed)) s2; -} __attribute__ ((packed)); + } __packed s2; +} __packed; struct intr_pkt { __u8 bType; @@ -528,15 +528,15 @@ struct intr_pkt { union intr_data_e1 e1; union intr_data_e4 e4; } u; -} __attribute__ ((packed)); +} __packed; #define E1_INTR_PKT_SIZE 28 #define E4_INTR_PKT_SIZE 64 static struct usb_driver uea_driver; static DEFINE_MUTEX(uea_mutex); -static const char *chip_name[] = {"ADI930", "Eagle I", "Eagle II", "Eagle III", - "Eagle IV"}; +static const char * const chip_name[] = { + "ADI930", "Eagle I", "Eagle II", "Eagle III", "Eagle IV"}; static int modem_index; static unsigned int debug; diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c index 989e16e..d3448ca 100644 --- a/drivers/usb/atm/usbatm.c +++ b/drivers/usb/atm/usbatm.c @@ -81,6 +81,7 @@ #include <linux/timer.h> #include <linux/wait.h> #include <linux/kthread.h> +#include <linux/ratelimit.h> #ifdef VERBOSE_DEBUG static int usbatm_print_packet(const unsigned char *data, int len); @@ -668,8 +669,7 @@ static int usbatm_atm_send(struct atm_vcc *vcc, struct sk_buff *skb) /* racy disconnection check - fine */ if (!instance || instance->disconnected) { #ifdef DEBUG - if (printk_ratelimit()) - printk(KERN_DEBUG "%s: %s!\n", __func__, instance ? "disconnected" : "NULL instance"); + printk_ratelimited(KERN_DEBUG "%s: %s!\n", __func__, instance ? "disconnected" : "NULL instance"); #endif err = -ENODEV; goto fail; diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index 9eca405..cb3a932 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c @@ -58,6 +58,7 @@ #include <linux/mutex.h> #undef DEBUG #include <linux/usb.h> +#include <linux/ratelimit.h> /* * Version Information @@ -348,8 +349,7 @@ static int usblp_check_status(struct usblp *usblp, int err) mutex_lock(&usblp->mut); if ((error = usblp_read_status(usblp, usblp->statusbuf)) < 0) { mutex_unlock(&usblp->mut); - if (printk_ratelimit()) - printk(KERN_ERR + printk_ratelimited(KERN_ERR "usblp%d: error %d reading printer status\n", usblp->minor, error); return 0; @@ -653,8 +653,7 @@ static long usblp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case LPGETSTATUS: if ((retval = usblp_read_status(usblp, usblp->statusbuf))) { - if (printk_ratelimit()) - printk(KERN_ERR "usblp%d:" + printk_ratelimited(KERN_ERR "usblp%d:" "failed reading printer status (%d)\n", usblp->minor, retval); retval = -EIO; diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index ace9f844..8669ba3 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -337,6 +337,17 @@ static const u8 ss_rh_config_descriptor[] = { 0x02, 0x00 /* __le16 ss_wBytesPerInterval; 15 bits for max 15 ports */ }; +/* authorized_default behaviour: + * -1 is authorized for all devices except wireless (old behaviour) + * 0 is unauthorized for all devices + * 1 is authorized for all devices + */ +static int authorized_default = -1; +module_param(authorized_default, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(authorized_default, + "Default USB device authorization: 0 is not authorized, 1 is " + "authorized, -1 is authorized except for wireless USB (default, " + "old behaviour"); /*-------------------------------------------------------------------------*/ /** @@ -2371,7 +2382,11 @@ int usb_add_hcd(struct usb_hcd *hcd, dev_info(hcd->self.controller, "%s\n", hcd->product_desc); - hcd->authorized_default = hcd->wireless? 0 : 1; + /* Keep old behaviour if authorized_default is not in [0, 1]. */ + if (authorized_default < 0 || authorized_default > 1) + hcd->authorized_default = hcd->wireless? 0 : 1; + else + hcd->authorized_default = authorized_default; set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); /* HC is in reset state, but accessible. Now do the one-time init, diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 029e288..44b6b40 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -96,9 +96,6 @@ config USB_GADGET_VBUS_DRAW This value will be used except for system-specific gadget drivers that have more specific information. -config USB_GADGET_SELECTED - boolean - # # USB Peripheral Controller Support # @@ -122,10 +119,9 @@ choice # Integrated controllers # -config USB_GADGET_AT91 - boolean "Atmel AT91 USB Device Port" +config USB_AT91 + tristate "Atmel AT91 USB Device Port" depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9 && !ARCH_AT91SAM9G45 - 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 @@ -135,27 +131,16 @@ config USB_GADGET_AT91 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_ATMEL_USBA - boolean "Atmel USBA" +config USB_ATMEL_USBA + tristate "Atmel USBA" select USB_GADGET_DUALSPEED depends on AVR32 || ARCH_AT91CAP9 || ARCH_AT91SAM9RL || ARCH_AT91SAM9G45 help USBA is the integrated high-speed USB Device controller on the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel. -config USB_ATMEL_USBA - tristate - depends on USB_GADGET_ATMEL_USBA - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_FSL_USB2 - boolean "Freescale Highspeed USB DR Peripheral Controller" +config USB_FSL_USB2 + tristate "Freescale Highspeed USB DR Peripheral Controller" depends on FSL_SOC || ARCH_MXC select USB_GADGET_DUALSPEED select USB_FSL_MPH_DR_OF if OF @@ -170,26 +155,15 @@ config USB_GADGET_FSL_USB2 dynamically linked module called "fsl_usb2_udc" and force all gadget drivers to also be dynamically linked. -config USB_FSL_USB2 - tristate - depends on USB_GADGET_FSL_USB2 - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_FUSB300 - boolean "Faraday FUSB300 USB Peripheral Controller" +config USB_FUSB300 + tristate "Faraday FUSB300 USB Peripheral Controller" + depends on !PHYS_ADDR_T_64BIT select USB_GADGET_DUALSPEED help Faraday usb device controller FUSB300 driver -config USB_FUSB300 - tristate - depends on USB_GADGET_FUSB300 - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_OMAP - boolean "OMAP USB Device Controller" +config USB_OMAP + tristate "OMAP USB Device Controller" depends on ARCH_OMAP select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG select USB_OTG_UTILS if ARCH_OMAP @@ -204,14 +178,8 @@ config USB_GADGET_OMAP dynamically linked module called "omap_udc" and force all gadget drivers to also be dynamically linked. -config USB_OMAP - tristate - depends on USB_GADGET_OMAP - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_PXA25X - boolean "PXA 25x or IXP 4xx" +config USB_PXA25X + tristate "PXA 25x or IXP 4xx" depends on (ARCH_PXA && PXA25x) || ARCH_IXP4XX select USB_OTG_UTILS help @@ -226,24 +194,18 @@ config USB_GADGET_PXA25X dynamically linked module called "pxa25x_udc" and force all gadget drivers to also be dynamically linked. -config USB_PXA25X - tristate - depends on USB_GADGET_PXA25X - default USB_GADGET - select USB_GADGET_SELECTED - # if there's only one gadget driver, using only two bulk endpoints, # don't waste memory for the other endpoints config USB_PXA25X_SMALL - depends on USB_GADGET_PXA25X + depends on USB_PXA25X bool default n if USB_ETH_RNDIS default y if USB_ZERO default y if USB_ETH default y if USB_G_SERIAL -config USB_GADGET_R8A66597 - boolean "Renesas R8A66597 USB Peripheral Controller" +config USB_R8A66597 + tristate "Renesas R8A66597 USB Peripheral Controller" select USB_GADGET_DUALSPEED help R8A66597 is a discrete USB host and peripheral controller chip that @@ -254,32 +216,22 @@ config USB_GADGET_R8A66597 dynamically linked module called "r8a66597_udc" and force all gadget drivers to also be dynamically linked. -config USB_R8A66597 - tristate - depends on USB_GADGET_R8A66597 - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_RENESAS_USBHS - boolean "Renesas USBHS" +config USB_RENESAS_USBHS_UDC + tristate 'Renesas USBHS controller' + depends on SUPERH || ARCH_SHMOBILE depends on USB_RENESAS_USBHS select USB_GADGET_DUALSPEED help - Renesas USBHS is a discrete USB host and peripheral controller - chip that supports both full and high speed USB 2.0 data transfers. - platform is able to configure endpoint (pipe) style + Renesas USBHS is a discrete USB host and peripheral controller chip + that supports both full and high speed USB 2.0 data transfers. + It has nine or more configurable endpoints, and endpoint zero. - Say "y" to enable the gadget specific portion of the USBHS driver. - - -config USB_RENESAS_USBHS_UDC - tristate - depends on USB_GADGET_RENESAS_USBHS - default USB_GADGET - select USB_GADGET_SELECTED + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "renesas_usbhs" and force all + gadget drivers to also be dynamically linked. -config USB_GADGET_PXA27X - boolean "PXA 27x" +config USB_PXA27X + tristate "PXA 27x" depends on ARCH_PXA && (PXA27x || PXA3xx) select USB_OTG_UTILS help @@ -293,14 +245,8 @@ config USB_GADGET_PXA27X dynamically linked module called "pxa27x_udc" and force all gadget drivers to also be dynamically linked. -config USB_PXA27X - tristate - depends on USB_GADGET_PXA27X - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_S3C_HSOTG - boolean "S3C HS/OtG USB Device controller" +config USB_S3C_HSOTG + tristate "S3C HS/OtG USB Device controller" depends on S3C_DEV_USB_HSOTG select USB_GADGET_S3C_HSOTG_PIO select USB_GADGET_DUALSPEED @@ -308,14 +254,8 @@ config USB_GADGET_S3C_HSOTG The Samsung S3C64XX USB2.0 high-speed gadget controller integrated into the S3C64XX series SoC. -config USB_S3C_HSOTG - tristate - depends on USB_GADGET_S3C_HSOTG - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_IMX - boolean "Freescale IMX USB Peripheral Controller" +config USB_IMX + tristate "Freescale IMX USB Peripheral Controller" depends on ARCH_MX1 help Freescale's IMX series include an integrated full speed @@ -329,14 +269,8 @@ config USB_GADGET_IMX dynamically linked module called "imx_udc" and force all gadget drivers to also be dynamically linked. -config USB_IMX - tristate - depends on USB_GADGET_IMX - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_S3C2410 - boolean "S3C2410 USB Device Controller" +config USB_S3C2410 + tristate "S3C2410 USB Device Controller" depends on ARCH_S3C2410 help Samsung's S3C2410 is an ARM-4 processor with an integrated @@ -346,18 +280,12 @@ config USB_GADGET_S3C2410 This driver has been tested on the S3C2410, S3C2412, and S3C2440 processors. -config USB_S3C2410 - tristate - depends on USB_GADGET_S3C2410 - default USB_GADGET - select USB_GADGET_SELECTED - config USB_S3C2410_DEBUG boolean "S3C2410 udc debug messages" - depends on USB_GADGET_S3C2410 + depends on USB_S3C2410 -config USB_GADGET_S3C_HSUDC - boolean "S3C2416, S3C2443 and S3C2450 USB Device Controller" +config USB_S3C_HSUDC + tristate "S3C2416, S3C2443 and S3C2450 USB Device Controller" depends on ARCH_S3C2410 select USB_GADGET_DUALSPEED help @@ -367,41 +295,29 @@ config USB_GADGET_S3C_HSUDC This driver has been tested on S3C2416 and S3C2450 processors. -config USB_S3C_HSUDC - tristate - depends on USB_GADGET_S3C_HSUDC - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_PXA_U2O - boolean "PXA9xx Processor USB2.0 controller" +config USB_PXA_U2O + tristate "PXA9xx Processor USB2.0 controller" + depends on ARCH_MMP select USB_GADGET_DUALSPEED help PXA9xx Processor series include a high speed USB2.0 device controller, which support high speed and full speed USB peripheral. -config USB_PXA_U2O - tristate - depends on USB_GADGET_PXA_U2O - default USB_GADGET - select USB_GADGET_SELECTED - # # Controllers available in both integrated and discrete versions # # musb builds in ../musb along with host support config USB_GADGET_MUSB_HDRC - boolean "Inventra HDRC USB Peripheral (TI, ADI, ...)" + tristate "Inventra HDRC USB Peripheral (TI, ADI, ...)" depends on USB_MUSB_HDRC && (USB_MUSB_PERIPHERAL || USB_MUSB_OTG) select USB_GADGET_DUALSPEED - select USB_GADGET_SELECTED help This OTG-capable silicon IP is used in dual designs including the TI DaVinci, OMAP 243x, OMAP 343x, TUSB 6010, and ADI Blackfin -config USB_GADGET_M66592 - boolean "Renesas M66592 USB Peripheral Controller" +config USB_M66592 + tristate "Renesas M66592 USB Peripheral Controller" select USB_GADGET_DUALSPEED help M66592 is a discrete USB peripheral controller chip that @@ -412,18 +328,12 @@ config USB_GADGET_M66592 dynamically linked module called "m66592_udc" and force all gadget drivers to also be dynamically linked. -config USB_M66592 - tristate - depends on USB_GADGET_M66592 - default USB_GADGET - select USB_GADGET_SELECTED - # # Controllers available only in discrete form (and all PCI controllers) # -config USB_GADGET_AMD5536UDC - boolean "AMD5536 UDC" +config USB_AMD5536UDC + tristate "AMD5536 UDC" depends on PCI select USB_GADGET_DUALSPEED help @@ -437,14 +347,8 @@ config USB_GADGET_AMD5536UDC dynamically linked module called "amd5536udc" and force all gadget drivers to also be dynamically linked. -config USB_AMD5536UDC - tristate - depends on USB_GADGET_AMD5536UDC - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_FSL_QE - boolean "Freescale QE/CPM USB Device Controller" +config USB_FSL_QE + tristate "Freescale QE/CPM USB Device Controller" depends on FSL_SOC && (QUICC_ENGINE || CPM) help Some of Freescale PowerPC processors have a Full Speed @@ -456,14 +360,8 @@ config USB_GADGET_FSL_QE Set CONFIG_USB_GADGET to "m" to build this driver as a dynamically linked module called "fsl_qe_udc". -config USB_FSL_QE - tristate - depends on USB_GADGET_FSL_QE - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_CI13XXX_PCI - boolean "MIPS USB CI13xxx PCI UDC" +config USB_CI13XXX_PCI + tristate "MIPS USB CI13xxx PCI UDC" depends on PCI select USB_GADGET_DUALSPEED help @@ -474,14 +372,31 @@ config USB_GADGET_CI13XXX_PCI dynamically linked module called "ci13xxx_udc" and force all gadget drivers to also be dynamically linked. -config USB_CI13XXX_PCI - tristate - depends on USB_GADGET_CI13XXX_PCI - default USB_GADGET - select USB_GADGET_SELECTED +config USB_NET2272 + tristate "PLX NET2272" + select USB_GADGET_DUALSPEED + help + PLX NET2272 is a USB peripheral controller which supports + both full and high speed USB 2.0 data transfers. + + It has three configurable endpoints, as well as endpoint zero + (for control transfer). + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "net2272" and force all + gadget drivers to also be dynamically linked. + +config USB_NET2272_DMA + boolean "Support external DMA controller" + depends on USB_NET2272 + help + The NET2272 part can optionally support an external DMA + controller, but your board has to have support in the + driver itself. -config USB_GADGET_NET2280 - boolean "NetChip 228x" + If unsure, say "N" here. The driver works fine in PIO mode. + +config USB_NET2280 + tristate "NetChip 228x" depends on PCI select USB_GADGET_DUALSPEED help @@ -496,14 +411,8 @@ config USB_GADGET_NET2280 dynamically linked module called "net2280" and force all gadget drivers to also be dynamically linked. -config USB_NET2280 - tristate - depends on USB_GADGET_NET2280 - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_GOKU - boolean "Toshiba TC86C001 'Goku-S'" +config USB_GOKU + tristate "Toshiba TC86C001 'Goku-S'" depends on PCI help The Toshiba TC86C001 is a PCI device which includes controllers @@ -516,15 +425,10 @@ config USB_GADGET_GOKU dynamically linked module called "goku_udc" and to force all gadget drivers to also be dynamically linked. -config USB_GOKU - tristate - depends on USB_GADGET_GOKU - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_LANGWELL - boolean "Intel Langwell USB Device Controller" +config USB_LANGWELL + tristate "Intel Langwell USB Device Controller" depends on PCI + depends on !PHYS_ADDR_T_64BIT select USB_GADGET_DUALSPEED help Intel Langwell USB Device Controller is a High-Speed USB @@ -537,14 +441,8 @@ config USB_GADGET_LANGWELL dynamically linked module called "langwell_udc" and force all gadget drivers to also be dynamically linked. -config USB_LANGWELL - tristate - depends on USB_GADGET_LANGWELL - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_EG20T - boolean "Intel EG20T PCH/OKI SEMICONDUCTOR ML7213 IOH UDC" +config USB_EG20T + tristate "Intel EG20T PCH/OKI SEMICONDUCTOR ML7213 IOH UDC" depends on PCI select USB_GADGET_DUALSPEED help @@ -565,14 +463,8 @@ config USB_GADGET_EG20T ML7213 is companion chip for Intel Atom E6xx series. ML7213 is completely compatible for Intel EG20T PCH. -config USB_EG20T - tristate - depends on USB_GADGET_EG20T - default USB_GADGET - select USB_GADGET_SELECTED - -config USB_GADGET_CI13XXX_MSM - boolean "MIPS USB CI13xxx for MSM" +config USB_CI13XXX_MSM + tristate "MIPS USB CI13xxx for MSM" depends on ARCH_MSM select USB_GADGET_DUALSPEED select USB_MSM_OTG @@ -588,31 +480,26 @@ config USB_GADGET_CI13XXX_MSM dynamically linked module called "ci13xxx_msm" and force all gadget drivers to also be dynamically linked. -config USB_CI13XXX_MSM - tristate - depends on USB_GADGET_CI13XXX_MSM - default USB_GADGET - select USB_GADGET_SELECTED - # # LAST -- dummy/emulated controller # -config USB_GADGET_DUMMY_HCD - boolean "Dummy HCD (DEVELOPMENT)" +config USB_DUMMY_HCD + tristate "Dummy HCD (DEVELOPMENT)" depends on USB=y || (USB=m && USB_GADGET=m) select USB_GADGET_DUALSPEED + select USB_GADGET_SUPERSPEED help This host controller driver emulates USB, looping all data transfer requests back to a USB "gadget driver" in the same host. The host side is the master; the gadget side is the slave. Gadget drivers can be high, full, or low speed; and they have access to endpoints like those from NET2280, PXA2xx, or SA1100 hardware. - + This may help in some stages of creating a driver to embed in a Linux device, since it lets you debug several parts of the gadget driver without its hardware or drivers being involved. - + Since such a gadget side driver needs to interoperate with a host side Linux-USB device driver, this may help to debug both sides of a USB protocol stack. @@ -621,12 +508,6 @@ config USB_GADGET_DUMMY_HCD dynamically linked module called "dummy_hcd" and force all gadget drivers to also be dynamically linked. -config USB_DUMMY_HCD - tristate - depends on USB_GADGET_DUMMY_HCD - default USB_GADGET - select USB_GADGET_SELECTED - # NOTE: Please keep dummy_hcd LAST so that "real hardware" appears # first and will be selected by default. @@ -637,12 +518,18 @@ config USB_GADGET_DUALSPEED bool depends on USB_GADGET +# Selected by UDC drivers that support super-speed opperation +config USB_GADGET_SUPERSPEED + bool + depends on USB_GADGET + depends on USB_GADGET_DUALSPEED + # # USB Gadget Drivers # choice tristate "USB Gadget Drivers" - depends on USB_GADGET && USB_GADGET_SELECTED + depends on USB_GADGET default USB_ETH help A Linux "Gadget Driver" talks to the USB Peripheral Controller @@ -848,7 +735,7 @@ config USB_FUNCTIONFS_GENERIC no Ethernet interface. config USB_FILE_STORAGE - tristate "File-backed Storage Gadget" + tristate "File-backed Storage Gadget (DEPRECATED)" depends on BLOCK help The File-backed Storage Gadget acts as a USB Mass Storage @@ -859,6 +746,9 @@ config USB_FILE_STORAGE Say "y" to link the driver statically, or "m" to build a dynamically linked module called "g_file_storage". + NOTE: This driver is deprecated. Its replacement is the + Mass Storage Gadget. + config USB_FILE_STORAGE_TEST bool "File-backed Storage Gadget testing version" depends on USB_FILE_STORAGE @@ -878,14 +768,11 @@ config USB_MASS_STORAGE device (in much the same way as the "loop" device driver), specified as a module parameter or sysfs option. - This is heavily based on File-backed Storage Gadget and in most - cases you will want to use FSG instead. This gadget is mostly - here to test the functionality of the Mass Storage Function - which may be used with composite framework. + This driver is an updated replacement for the deprecated + File-backed Storage Gadget (g_file_storage). Say "y" to link the driver statically, or "m" to build - a dynamically linked module called "g_mass_storage". If unsure, - consider File-backed Storage Gadget. + a dynamically linked module called "g_mass_storage". config USB_G_SERIAL tristate "Serial Gadget (with CDC ACM and CDC OBEX support)" diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 4fe92b1..9ba725a 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -3,7 +3,9 @@ # ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG +obj-$(CONFIG_USB_GADGET) += udc-core.o obj-$(CONFIG_USB_DUMMY_HCD) += dummy_hcd.o +obj-$(CONFIG_USB_NET2272) += net2272.o obj-$(CONFIG_USB_NET2280) += net2280.o obj-$(CONFIG_USB_AMD5536UDC) += amd5536udc.o obj-$(CONFIG_USB_PXA25X) += pxa25x_udc.o diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index 95e8138..70f2b37 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -1438,10 +1438,15 @@ static int udc_wakeup(struct usb_gadget *gadget) return 0; } +static int amd5536_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int amd5536_stop(struct usb_gadget_driver *driver); /* gadget operations */ static const struct usb_gadget_ops udc_ops = { .wakeup = udc_wakeup, .get_frame = udc_get_frame, + .start = amd5536_start, + .stop = amd5536_stop, }; /* Setups endpoint parameters, adds endpoints to linked list */ @@ -1955,7 +1960,7 @@ static int setup_ep0(struct udc *dev) } /* Called by gadget driver to register itself */ -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int amd5536_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct udc *dev = udc; @@ -2002,7 +2007,6 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, return 0; } -EXPORT_SYMBOL(usb_gadget_probe_driver); /* shutdown requests and disconnect from gadget */ static void @@ -2027,7 +2031,7 @@ __acquires(dev->lock) } /* Called by gadget driver to unregister itself */ -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int amd5536_stop(struct usb_gadget_driver *driver) { struct udc *dev = udc; unsigned long flags; @@ -2057,8 +2061,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); - /* Clear pending NAK bits */ static void udc_process_cnak_queue(struct udc *dev) @@ -3134,6 +3136,7 @@ static void udc_pci_remove(struct pci_dev *pdev) dev = pci_get_drvdata(pdev); + usb_del_gadget_udc(&udc->gadget); /* gadget driver must not be registered */ BUG_ON(dev->driver != NULL); @@ -3382,8 +3385,13 @@ static int udc_probe(struct udc *dev) "driver version: %s(for Geode5536 B1)\n", tmp); udc = dev; + retval = usb_add_gadget_udc(&udc->pdev->dev, &dev->gadget); + if (retval) + goto finished; + retval = device_register(&dev->gadget.dev); if (retval) { + usb_del_gadget_udc(&dev->gadget); put_device(&dev->gadget.dev); goto finished; } diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index f4690ff..98cbc06 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -985,12 +985,18 @@ static int at91_set_selfpowered(struct usb_gadget *gadget, int is_on) return 0; } +static int at91_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int at91_stop(struct usb_gadget_driver *driver); + 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, + .start = at91_start, + .stop = at91_stop, /* * VBUS-powered devices may also also want to support bigger @@ -1628,7 +1634,7 @@ static void at91_vbus_timer(unsigned long data) schedule_work(&udc->vbus_timer_work); } -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int at91_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct at91_udc *udc = &controller; @@ -1672,9 +1678,8 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, DBG("bound to %s\n", driver->driver.name); return 0; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int usb_gadget_unregister_driver (struct usb_gadget_driver *driver) +static int at91_stop(struct usb_gadget_driver *driver) { struct at91_udc *udc = &controller; unsigned long flags; @@ -1696,7 +1701,6 @@ int usb_gadget_unregister_driver (struct usb_gadget_driver *driver) DBG("unbound from %s\n", driver->driver.name); return 0; } -EXPORT_SYMBOL (usb_gadget_unregister_driver); /*-------------------------------------------------------------------------*/ @@ -1854,13 +1858,18 @@ static int __init at91udc_probe(struct platform_device *pdev) DBG("no VBUS detection, assuming always-on\n"); udc->vbus = 1; } + retval = usb_add_gadget_udc(dev, &udc->gadget); + if (retval) + goto fail4; dev_set_drvdata(dev, udc); device_init_wakeup(dev, 1); create_debug_file(udc); INFO("%s version %s\n", driver_name, DRIVER_VERSION); return 0; - +fail4: + if (udc->board.vbus_pin > 0 && !udc->board.vbus_polled) + free_irq(udc->board.vbus_pin, udc); fail3: if (udc->board.vbus_pin > 0) gpio_free(udc->board.vbus_pin); @@ -1887,6 +1896,7 @@ static int __exit at91udc_remove(struct platform_device *pdev) DBG("remove\n"); + usb_del_gadget_udc(&udc->gadget); if (udc->driver) return -EBUSY; diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c index f045c89..5b1665e 100644 --- a/drivers/usb/gadget/atmel_usba_udc.c +++ b/drivers/usb/gadget/atmel_usba_udc.c @@ -1007,10 +1007,16 @@ usba_udc_set_selfpowered(struct usb_gadget *gadget, int is_selfpowered) return 0; } +static int atmel_usba_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int atmel_usba_stop(struct usb_gadget_driver *driver); + static const struct usb_gadget_ops usba_udc_ops = { .get_frame = usba_udc_get_frame, .wakeup = usba_udc_wakeup, .set_selfpowered = usba_udc_set_selfpowered, + .start = atmel_usba_start, + .stop = atmel_usba_stop, }; static struct usb_endpoint_descriptor usba_ep0_desc = { @@ -1789,7 +1795,7 @@ out: return IRQ_HANDLED; } -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int atmel_usba_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct usba_udc *udc = &the_udc; @@ -1842,9 +1848,8 @@ err_driver_bind: udc->gadget.dev.driver = NULL; return ret; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int atmel_usba_stop(struct usb_gadget_driver *driver) { struct usba_udc *udc = &the_udc; unsigned long flags; @@ -1880,7 +1885,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); static int __init usba_udc_probe(struct platform_device *pdev) { @@ -2021,12 +2025,24 @@ static int __init usba_udc_probe(struct platform_device *pdev) } } + ret = usb_add_gadget_udc(&pdev->dev, &udc->gadget); + if (ret) + goto err_add_udc; + usba_init_debugfs(udc); for (i = 1; i < pdata->num_ep; i++) usba_ep_init_debugfs(udc, &usba_ep[i]); return 0; +err_add_udc: + if (gpio_is_valid(pdata->vbus_pin)) { + free_irq(gpio_to_irq(udc->vbus_pin), udc); + gpio_free(udc->vbus_pin); + } + + device_unregister(&udc->gadget.dev); + err_device_add: free_irq(irq, udc); err_request_irq: @@ -2053,6 +2069,8 @@ static int __exit usba_udc_remove(struct platform_device *pdev) udc = platform_get_drvdata(pdev); + usb_del_gadget_udc(&udc->gadget); + for (i = 1; i < pdata->num_ep; i++) usba_ep_cleanup_debugfs(&usba_ep[i]); usba_cleanup_debugfs(udc); diff --git a/drivers/usb/gadget/audio.c b/drivers/usb/gadget/audio.c index 93b999e..9d89ae47 100644 --- a/drivers/usb/gadget/audio.c +++ b/drivers/usb/gadget/audio.c @@ -165,6 +165,7 @@ static struct usb_composite_driver audio_driver = { .name = "g_audio", .dev = &device_desc, .strings = audio_strings, + .max_speed = USB_SPEED_HIGH, .unbind = __exit_p(audio_unbind), }; diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c index 2720ab0..b1c1afb 100644 --- a/drivers/usb/gadget/cdc2.c +++ b/drivers/usb/gadget/cdc2.c @@ -244,6 +244,7 @@ static struct usb_composite_driver cdc_driver = { .name = "g_cdc", .dev = &device_desc, .strings = dev_strings, + .max_speed = USB_SPEED_HIGH, .unbind = __exit_p(cdc_unbind), }; diff --git a/drivers/usb/gadget/ci13xxx_msm.c b/drivers/usb/gadget/ci13xxx_msm.c index 139ac94..470981a 100644 --- a/drivers/usb/gadget/ci13xxx_msm.c +++ b/drivers/usb/gadget/ci13xxx_msm.c @@ -126,6 +126,7 @@ static struct platform_driver ci13xxx_msm_driver = { .probe = ci13xxx_msm_probe, .driver = { .name = "msm_hsusb", }, }; +MODULE_ALIAS("platform:msm_hsusb"); static int __init ci13xxx_msm_init(void) { diff --git a/drivers/usb/gadget/ci13xxx_udc.c b/drivers/usb/gadget/ci13xxx_udc.c index baaf87e..1265a85 100644 --- a/drivers/usb/gadget/ci13xxx_udc.c +++ b/drivers/usb/gadget/ci13xxx_udc.c @@ -857,7 +857,7 @@ static void dbg_print(u8 addr, const char *name, int status, const char *extra) stamp = stamp * 1000000 + tval.tv_usec; scnprintf(dbg_data.buf[dbg_data.idx], DBG_DATA_MSG, - "%04X\t» %02X %-7.7s %4i «\t%s\n", + "%04X\t? %02X %-7.7s %4i ?\t%s\n", stamp, addr, name, status, extra); dbg_inc(&dbg_data.idx); @@ -865,7 +865,7 @@ static void dbg_print(u8 addr, const char *name, int status, const char *extra) write_unlock_irqrestore(&dbg_data.lck, flags); if (dbg_data.tty != 0) - pr_notice("%04X\t» %02X %-7.7s %4i «\t%s\n", + pr_notice("%04X\t? %02X %-7.7s %4i ?\t%s\n", stamp, addr, name, status, extra); } @@ -1025,15 +1025,15 @@ static ssize_t show_inters(struct device *dev, struct device_attribute *attr, n += scnprintf(buf + n, PAGE_SIZE - n, "*test = %d\n", isr_statistics.test); - n += scnprintf(buf + n, PAGE_SIZE - n, "» ui = %d\n", + n += scnprintf(buf + n, PAGE_SIZE - n, "? ui = %d\n", isr_statistics.ui); - n += scnprintf(buf + n, PAGE_SIZE - n, "» uei = %d\n", + n += scnprintf(buf + n, PAGE_SIZE - n, "? uei = %d\n", isr_statistics.uei); - n += scnprintf(buf + n, PAGE_SIZE - n, "» pci = %d\n", + n += scnprintf(buf + n, PAGE_SIZE - n, "? pci = %d\n", isr_statistics.pci); - n += scnprintf(buf + n, PAGE_SIZE - n, "» uri = %d\n", + n += scnprintf(buf + n, PAGE_SIZE - n, "? uri = %d\n", isr_statistics.uri); - n += scnprintf(buf + n, PAGE_SIZE - n, "» sli = %d\n", + n += scnprintf(buf + n, PAGE_SIZE - n, "? sli = %d\n", isr_statistics.sli); n += scnprintf(buf + n, PAGE_SIZE - n, "*none = %d\n", isr_statistics.none); @@ -1214,12 +1214,13 @@ static DEVICE_ATTR(qheads, S_IRUSR, show_qheads, NULL); * * Check "device.h" for details */ +#define DUMP_ENTRIES 512 static ssize_t show_registers(struct device *dev, struct device_attribute *attr, char *buf) { struct ci13xxx *udc = container_of(dev, struct ci13xxx, gadget.dev); unsigned long flags; - u32 dump[512]; + u32 *dump; unsigned i, k, n = 0; dbg_trace("[%s] %p\n", __func__, buf); @@ -1228,8 +1229,14 @@ static ssize_t show_registers(struct device *dev, return 0; } + dump = kmalloc(sizeof(u32) * DUMP_ENTRIES, GFP_KERNEL); + if (!dump) { + dev_err(dev, "%s: out of memory\n", __func__); + return 0; + } + spin_lock_irqsave(udc->lock, flags); - k = hw_register_read(dump, sizeof(dump)/sizeof(u32)); + k = hw_register_read(dump, DUMP_ENTRIES); spin_unlock_irqrestore(udc->lock, flags); for (i = 0; i < k; i++) { @@ -1237,6 +1244,7 @@ static ssize_t show_registers(struct device *dev, "reg[0x%04X] = 0x%08X\n", i * (unsigned)sizeof(u32), dump[i]); } + kfree(dump); return n; } @@ -2515,6 +2523,9 @@ static int ci13xxx_vbus_draw(struct usb_gadget *_gadget, unsigned mA) return -ENOTSUPP; } +static int ci13xxx_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int ci13xxx_stop(struct usb_gadget_driver *driver); /** * Device operations part of the API to the USB controller hardware, * which don't involve endpoints (or i/o) @@ -2524,17 +2535,19 @@ static const struct usb_gadget_ops usb_gadget_ops = { .vbus_session = ci13xxx_vbus_session, .wakeup = ci13xxx_wakeup, .vbus_draw = ci13xxx_vbus_draw, + .start = ci13xxx_start, + .stop = ci13xxx_stop, }; /** - * usb_gadget_probe_driver: register a gadget driver + * ci13xxx_start: register a gadget driver * @driver: the driver being registered * @bind: the driver's bind callback * - * Check usb_gadget_probe_driver() at <linux/usb/gadget.h> for details. + * Check ci13xxx_start() at <linux/usb/gadget.h> for details. * Interrupts are enabled here. */ -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int ci13xxx_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct ci13xxx *udc = _udc; @@ -2615,10 +2628,13 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, if (retval) goto done; spin_unlock_irqrestore(udc->lock, flags); - retval = usb_ep_enable(&udc->ep0out.ep, &ctrl_endpt_out_desc); + udc->ep0out.ep.desc = &ctrl_endpt_out_desc; + retval = usb_ep_enable(&udc->ep0out.ep); if (retval) return retval; - retval = usb_ep_enable(&udc->ep0in.ep, &ctrl_endpt_in_desc); + + udc->ep0in.ep.desc = &ctrl_endpt_in_desc; + retval = usb_ep_enable(&udc->ep0in.ep); if (retval) return retval; spin_lock_irqsave(udc->lock, flags); @@ -2657,14 +2673,13 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, spin_unlock_irqrestore(udc->lock, flags); return retval; } -EXPORT_SYMBOL(usb_gadget_probe_driver); /** - * usb_gadget_unregister_driver: unregister a gadget driver + * ci13xxx_stop: unregister a gadget driver * * Check usb_gadget_unregister_driver() at "usb_gadget.h" for details */ -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int ci13xxx_stop(struct usb_gadget_driver *driver) { struct ci13xxx *udc = _udc; unsigned long i, flags; @@ -2726,7 +2741,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); /****************************************************************************** * BUS block @@ -2901,12 +2915,23 @@ static int udc_probe(struct ci13xxx_udc_driver *driver, struct device *dev, if (retval) goto remove_dbg; } + + retval = usb_add_gadget_udc(dev, &udc->gadget); + if (retval) + goto remove_trans; + pm_runtime_no_callbacks(&udc->gadget.dev); pm_runtime_enable(&udc->gadget.dev); _udc = udc; return retval; +remove_trans: + if (udc->transceiver) { + otg_set_peripheral(udc->transceiver, &udc->gadget); + otg_put_transceiver(udc->transceiver); + } + err("error = %i", retval); remove_dbg: #ifdef CONFIG_USB_GADGET_DEBUG_FILES @@ -2936,6 +2961,7 @@ static void udc_remove(void) err("EINVAL"); return; } + usb_del_gadget_udc(&udc->gadget); if (udc->transceiver) { otg_set_peripheral(udc->transceiver, &udc->gadget); diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 5cbb1a4..5ef8779 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -27,7 +27,7 @@ #include <linux/utsname.h> #include <linux/usb/composite.h> - +#include <asm/unaligned.h> /* * The code in this file is utility code, used to build a gadget driver @@ -74,6 +74,130 @@ MODULE_PARM_DESC(iSerialNumber, "SerialNumber string"); static char composite_manufacturer[50]; /*-------------------------------------------------------------------------*/ +/** + * next_ep_desc() - advance to the next EP descriptor + * @t: currect pointer within descriptor array + * + * Return: next EP descriptor or NULL + * + * Iterate over @t until either EP descriptor found or + * NULL (that indicates end of list) encountered + */ +static struct usb_descriptor_header** +next_ep_desc(struct usb_descriptor_header **t) +{ + for (; *t; t++) { + if ((*t)->bDescriptorType == USB_DT_ENDPOINT) + return t; + } + return NULL; +} + +/* + * for_each_ep_desc()- iterate over endpoint descriptors in the + * descriptors list + * @start: pointer within descriptor array. + * @ep_desc: endpoint descriptor to use as the loop cursor + */ +#define for_each_ep_desc(start, ep_desc) \ + for (ep_desc = next_ep_desc(start); \ + ep_desc; ep_desc = next_ep_desc(ep_desc+1)) + +/** + * config_ep_by_speed() - configures the given endpoint + * according to gadget speed. + * @g: pointer to the gadget + * @f: usb function + * @_ep: the endpoint to configure + * + * Return: error code, 0 on success + * + * This function chooses the right descriptors for a given + * endpoint according to gadget speed and saves it in the + * endpoint desc field. If the endpoint already has a descriptor + * assigned to it - overwrites it with currently corresponding + * descriptor. The endpoint maxpacket field is updated according + * to the chosen descriptor. + * Note: the supplied function should hold all the descriptors + * for supported speeds + */ +int config_ep_by_speed(struct usb_gadget *g, + struct usb_function *f, + struct usb_ep *_ep) +{ + struct usb_endpoint_descriptor *chosen_desc = NULL; + struct usb_descriptor_header **speed_desc = NULL; + + struct usb_ss_ep_comp_descriptor *comp_desc = NULL; + int want_comp_desc = 0; + + struct usb_descriptor_header **d_spd; /* cursor for speed desc */ + + if (!g || !f || !_ep) + return -EIO; + + /* select desired speed */ + switch (g->speed) { + case USB_SPEED_SUPER: + if (gadget_is_superspeed(g)) { + speed_desc = f->ss_descriptors; + want_comp_desc = 1; + break; + } + /* else: Fall trough */ + case USB_SPEED_HIGH: + if (gadget_is_dualspeed(g)) { + speed_desc = f->hs_descriptors; + break; + } + /* else: fall through */ + default: + speed_desc = f->descriptors; + } + /* find descriptors */ + for_each_ep_desc(speed_desc, d_spd) { + chosen_desc = (struct usb_endpoint_descriptor *)*d_spd; + if (chosen_desc->bEndpointAddress == _ep->address) + goto ep_found; + } + return -EIO; + +ep_found: + /* commit results */ + _ep->maxpacket = le16_to_cpu(chosen_desc->wMaxPacketSize); + _ep->desc = chosen_desc; + _ep->comp_desc = NULL; + _ep->maxburst = 0; + _ep->mult = 0; + if (!want_comp_desc) + return 0; + + /* + * Companion descriptor should follow EP descriptor + * USB 3.0 spec, #9.6.7 + */ + comp_desc = (struct usb_ss_ep_comp_descriptor *)*(++d_spd); + if (!comp_desc || + (comp_desc->bDescriptorType != USB_DT_SS_ENDPOINT_COMP)) + return -EIO; + _ep->comp_desc = comp_desc; + if (g->speed == USB_SPEED_SUPER) { + switch (usb_endpoint_type(_ep->desc)) { + case USB_ENDPOINT_XFER_BULK: + case USB_ENDPOINT_XFER_INT: + _ep->maxburst = comp_desc->bMaxBurst; + break; + case USB_ENDPOINT_XFER_ISOC: + /* mult: bits 1:0 of bmAttributes */ + _ep->mult = comp_desc->bmAttributes & 0x3; + break; + default: + /* Do nothing for control endpoints */ + break; + } + } + return 0; +} /** * usb_add_function() - add a function to a configuration @@ -123,6 +247,8 @@ int usb_add_function(struct usb_configuration *config, config->fullspeed = true; if (!config->highspeed && function->hs_descriptors) config->highspeed = true; + if (!config->superspeed && function->ss_descriptors) + config->superspeed = true; done: if (value) @@ -266,10 +392,17 @@ static int config_buf(struct usb_configuration *config, list_for_each_entry(f, &config->functions, list) { struct usb_descriptor_header **descriptors; - if (speed == USB_SPEED_HIGH) + switch (speed) { + case USB_SPEED_SUPER: + descriptors = f->ss_descriptors; + break; + case USB_SPEED_HIGH: descriptors = f->hs_descriptors; - else + break; + default: descriptors = f->descriptors; + } + if (!descriptors) continue; status = usb_descriptor_fillbuf(next, len, @@ -292,9 +425,10 @@ static int config_desc(struct usb_composite_dev *cdev, unsigned w_value) u8 type = w_value >> 8; enum usb_device_speed speed = USB_SPEED_UNKNOWN; - if (gadget_is_dualspeed(gadget)) { - int hs = 0; - + if (gadget->speed == USB_SPEED_SUPER) + speed = gadget->speed; + else if (gadget_is_dualspeed(gadget)) { + int hs = 0; if (gadget->speed == USB_SPEED_HIGH) hs = 1; if (type == USB_DT_OTHER_SPEED_CONFIG) @@ -308,13 +442,20 @@ static int config_desc(struct usb_composite_dev *cdev, unsigned w_value) w_value &= 0xff; list_for_each_entry(c, &cdev->configs, list) { /* ignore configs that won't work at this speed */ - if (speed == USB_SPEED_HIGH) { + switch (speed) { + case USB_SPEED_SUPER: + if (!c->superspeed) + continue; + break; + case USB_SPEED_HIGH: if (!c->highspeed) continue; - } else { + break; + default: if (!c->fullspeed) continue; } + if (w_value == 0) return config_buf(c, speed, cdev->req->buf, type); w_value--; @@ -328,16 +469,22 @@ static int count_configs(struct usb_composite_dev *cdev, unsigned type) struct usb_configuration *c; unsigned count = 0; int hs = 0; + int ss = 0; if (gadget_is_dualspeed(gadget)) { if (gadget->speed == USB_SPEED_HIGH) hs = 1; + if (gadget->speed == USB_SPEED_SUPER) + ss = 1; if (type == USB_DT_DEVICE_QUALIFIER) hs = !hs; } list_for_each_entry(c, &cdev->configs, list) { /* ignore configs that won't work at this speed */ - if (hs) { + if (ss) { + if (!c->superspeed) + continue; + } else if (hs) { if (!c->highspeed) continue; } else { @@ -349,6 +496,71 @@ static int count_configs(struct usb_composite_dev *cdev, unsigned type) return count; } +/** + * bos_desc() - prepares the BOS descriptor. + * @cdev: pointer to usb_composite device to generate the bos + * descriptor for + * + * This function generates the BOS (Binary Device Object) + * descriptor and its device capabilities descriptors. The BOS + * descriptor should be supported by a SuperSpeed device. + */ +static int bos_desc(struct usb_composite_dev *cdev) +{ + struct usb_ext_cap_descriptor *usb_ext; + struct usb_ss_cap_descriptor *ss_cap; + struct usb_dcd_config_params dcd_config_params; + struct usb_bos_descriptor *bos = cdev->req->buf; + + bos->bLength = USB_DT_BOS_SIZE; + bos->bDescriptorType = USB_DT_BOS; + + bos->wTotalLength = cpu_to_le16(USB_DT_BOS_SIZE); + bos->bNumDeviceCaps = 0; + + /* + * A SuperSpeed device shall include the USB2.0 extension descriptor + * and shall support LPM when operating in USB2.0 HS mode. + */ + usb_ext = cdev->req->buf + le16_to_cpu(bos->wTotalLength); + bos->bNumDeviceCaps++; + le16_add_cpu(&bos->wTotalLength, USB_DT_USB_EXT_CAP_SIZE); + usb_ext->bLength = USB_DT_USB_EXT_CAP_SIZE; + usb_ext->bDescriptorType = USB_DT_DEVICE_CAPABILITY; + usb_ext->bDevCapabilityType = USB_CAP_TYPE_EXT; + usb_ext->bmAttributes = cpu_to_le32(USB_LPM_SUPPORT); + + /* + * The Superspeed USB Capability descriptor shall be implemented by all + * SuperSpeed devices. + */ + ss_cap = cdev->req->buf + le16_to_cpu(bos->wTotalLength); + bos->bNumDeviceCaps++; + le16_add_cpu(&bos->wTotalLength, USB_DT_USB_SS_CAP_SIZE); + ss_cap->bLength = USB_DT_USB_SS_CAP_SIZE; + ss_cap->bDescriptorType = USB_DT_DEVICE_CAPABILITY; + ss_cap->bDevCapabilityType = USB_SS_CAP_TYPE; + ss_cap->bmAttributes = 0; /* LTM is not supported yet */ + ss_cap->wSpeedSupported = cpu_to_le16(USB_LOW_SPEED_OPERATION | + USB_FULL_SPEED_OPERATION | + USB_HIGH_SPEED_OPERATION | + USB_5GBPS_OPERATION); + ss_cap->bFunctionalitySupport = USB_LOW_SPEED_OPERATION; + + /* Get Controller configuration */ + if (cdev->gadget->ops->get_config_params) + cdev->gadget->ops->get_config_params(&dcd_config_params); + else { + dcd_config_params.bU1devExitLat = USB_DEFULT_U1_DEV_EXIT_LAT; + dcd_config_params.bU2DevExitLat = + cpu_to_le16(USB_DEFULT_U2_DEV_EXIT_LAT); + } + ss_cap->bU1devExitLat = dcd_config_params.bU1devExitLat; + ss_cap->bU2DevExitLat = dcd_config_params.bU2DevExitLat; + + return le16_to_cpu(bos->wTotalLength); +} + static void device_qual(struct usb_composite_dev *cdev) { struct usb_qualifier_descriptor *qual = cdev->req->buf; @@ -361,7 +573,7 @@ static void device_qual(struct usb_composite_dev *cdev) qual->bDeviceSubClass = cdev->desc.bDeviceSubClass; qual->bDeviceProtocol = cdev->desc.bDeviceProtocol; /* ASSUME same EP0 fifo size at both speeds */ - qual->bMaxPacketSize0 = cdev->desc.bMaxPacketSize0; + qual->bMaxPacketSize0 = cdev->gadget->ep0->maxpacket; qual->bNumConfigurations = count_configs(cdev, USB_DT_DEVICE_QUALIFIER); qual->bRESERVED = 0; } @@ -392,28 +604,46 @@ static int set_config(struct usb_composite_dev *cdev, unsigned power = gadget_is_otg(gadget) ? 8 : 100; int tmp; - if (cdev->config) - reset_config(cdev); - if (number) { list_for_each_entry(c, &cdev->configs, list) { if (c->bConfigurationValue == number) { + /* + * We disable the FDs of the previous + * configuration only if the new configuration + * is a valid one + */ + if (cdev->config) + reset_config(cdev); result = 0; break; } } if (result < 0) goto done; - } else + } else { /* Zero configuration value - need to reset the config */ + if (cdev->config) + reset_config(cdev); result = 0; + } INFO(cdev, "%s speed config #%d: %s\n", ({ char *speed; switch (gadget->speed) { - case USB_SPEED_LOW: speed = "low"; break; - case USB_SPEED_FULL: speed = "full"; break; - case USB_SPEED_HIGH: speed = "high"; break; - default: speed = "?"; break; + case USB_SPEED_LOW: + speed = "low"; + break; + case USB_SPEED_FULL: + speed = "full"; + break; + case USB_SPEED_HIGH: + speed = "high"; + break; + case USB_SPEED_SUPER: + speed = "super"; + break; + default: + speed = "?"; + break; } ; speed; }), number, c ? c->label : "unconfigured"); if (!c) @@ -435,10 +665,16 @@ static int set_config(struct usb_composite_dev *cdev, * function's setup callback instead of the current * configuration's setup callback. */ - if (gadget->speed == USB_SPEED_HIGH) + switch (gadget->speed) { + case USB_SPEED_SUPER: + descriptors = f->ss_descriptors; + break; + case USB_SPEED_HIGH: descriptors = f->hs_descriptors; - else + break; + default: descriptors = f->descriptors; + } for (; *descriptors; ++descriptors) { struct usb_endpoint_descriptor *ep; @@ -531,8 +767,9 @@ int usb_add_config(struct usb_composite_dev *cdev, } else { unsigned i; - DBG(cdev, "cfg %d/%p speeds:%s%s\n", + DBG(cdev, "cfg %d/%p speeds:%s%s%s\n", config->bConfigurationValue, config, + config->superspeed ? " super" : "", config->highspeed ? " high" : "", config->fullspeed ? (gadget_is_dualspeed(cdev->gadget) @@ -811,6 +1048,7 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) struct usb_composite_dev *cdev = get_gadget_data(gadget); struct usb_request *req = cdev->req; int value = -EOPNOTSUPP; + int status = 0; u16 w_index = le16_to_cpu(ctrl->wIndex); u8 intf = w_index & 0xFF; u16 w_value = le16_to_cpu(ctrl->wValue); @@ -838,18 +1076,29 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) case USB_DT_DEVICE: cdev->desc.bNumConfigurations = count_configs(cdev, USB_DT_DEVICE); + cdev->desc.bMaxPacketSize0 = + cdev->gadget->ep0->maxpacket; + if (gadget_is_superspeed(gadget)) { + if (gadget->speed >= USB_SPEED_SUPER) + cdev->desc.bcdUSB = cpu_to_le16(0x0300); + else + cdev->desc.bcdUSB = cpu_to_le16(0x0210); + } + value = min(w_length, (u16) sizeof cdev->desc); memcpy(req->buf, &cdev->desc, value); break; case USB_DT_DEVICE_QUALIFIER: - if (!gadget_is_dualspeed(gadget)) + if (!gadget_is_dualspeed(gadget) || + gadget->speed >= USB_SPEED_SUPER) break; device_qual(cdev); value = min_t(int, w_length, sizeof(struct usb_qualifier_descriptor)); break; case USB_DT_OTHER_SPEED_CONFIG: - if (!gadget_is_dualspeed(gadget)) + if (!gadget_is_dualspeed(gadget) || + gadget->speed >= USB_SPEED_SUPER) break; /* FALLTHROUGH */ case USB_DT_CONFIG: @@ -863,6 +1112,12 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) if (value >= 0) value = min(w_length, (u16) value); break; + case USB_DT_BOS: + if (gadget_is_superspeed(gadget)) { + value = bos_desc(cdev); + value = min(w_length, (u16) value); + } + break; } break; @@ -930,6 +1185,61 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) *((u8 *)req->buf) = value; value = min(w_length, (u16) 1); break; + + /* + * USB 3.0 additions: + * Function driver should handle get_status request. If such cb + * wasn't supplied we respond with default value = 0 + * Note: function driver should supply such cb only for the first + * interface of the function + */ + case USB_REQ_GET_STATUS: + if (!gadget_is_superspeed(gadget)) + goto unknown; + if (ctrl->bRequestType != (USB_DIR_IN | USB_RECIP_INTERFACE)) + goto unknown; + value = 2; /* This is the length of the get_status reply */ + put_unaligned_le16(0, req->buf); + if (!cdev->config || intf >= MAX_CONFIG_INTERFACES) + break; + f = cdev->config->interface[intf]; + if (!f) + break; + status = f->get_status ? f->get_status(f) : 0; + if (status < 0) + break; + put_unaligned_le16(status & 0x0000ffff, req->buf); + break; + /* + * Function drivers should handle SetFeature/ClearFeature + * (FUNCTION_SUSPEND) request. function_suspend cb should be supplied + * only for the first interface of the function + */ + case USB_REQ_CLEAR_FEATURE: + case USB_REQ_SET_FEATURE: + if (!gadget_is_superspeed(gadget)) + goto unknown; + if (ctrl->bRequestType != (USB_DIR_OUT | USB_RECIP_INTERFACE)) + goto unknown; + switch (w_value) { + case USB_INTRF_FUNC_SUSPEND: + if (!cdev->config || intf >= MAX_CONFIG_INTERFACES) + break; + f = cdev->config->interface[intf]; + if (!f) + break; + value = 0; + if (f->func_suspend) + value = f->func_suspend(f, w_index >> 8); + if (value < 0) { + ERROR(cdev, + "func_suspend() returned error %d\n", + value); + value = 0; + } + break; + } + break; default: unknown: VDBG(cdev, @@ -1140,7 +1450,6 @@ static int composite_bind(struct usb_gadget *gadget) goto fail; cdev->desc = *composite->dev; - cdev->desc.bMaxPacketSize0 = gadget->ep0->maxpacket; /* standardized runtime overrides for device ID data */ if (idVendor) @@ -1247,7 +1556,11 @@ composite_resume(struct usb_gadget *gadget) /*-------------------------------------------------------------------------*/ static struct usb_gadget_driver composite_driver = { +#ifdef CONFIG_USB_GADGET_SUPERSPEED + .speed = USB_SPEED_SUPER, +#else .speed = USB_SPEED_HIGH, +#endif .unbind = composite_unbind, @@ -1293,6 +1606,8 @@ int usb_composite_probe(struct usb_composite_driver *driver, driver->iProduct = driver->name; composite_driver.function = (char *) driver->name; composite_driver.driver.name = driver->name; + composite_driver.speed = min((u8)composite_driver.speed, + (u8)driver->max_speed); composite = driver; composite_gadget_bind = bind; diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c index 09084fd..b2c0013 100644 --- a/drivers/usb/gadget/config.c +++ b/drivers/usb/gadget/config.c @@ -165,28 +165,3 @@ usb_copy_descriptors(struct usb_descriptor_header **src) return ret; } -/** - * usb_find_endpoint - find a copy of an endpoint descriptor - * @src: original vector of descriptors - * @copy: copy of @src - * @match: endpoint descriptor found in @src - * - * This returns the copy of the @match descriptor made for @copy. Its - * intended use is to help remembering the endpoint descriptor to use - * when enabling a given endpoint. - */ -struct usb_endpoint_descriptor * -usb_find_endpoint( - struct usb_descriptor_header **src, - struct usb_descriptor_header **copy, - struct usb_endpoint_descriptor *match -) -{ - while (*src) { - if (*src == (void *) match) - return (void *)*copy; - src++; - copy++; - } - return NULL; -} diff --git a/drivers/usb/gadget/dbgp.c b/drivers/usb/gadget/dbgp.c index dbe92ee..8beefdd 100644 --- a/drivers/usb/gadget/dbgp.c +++ b/drivers/usb/gadget/dbgp.c @@ -173,7 +173,9 @@ fail_1: static int __enable_ep(struct usb_ep *ep, struct usb_endpoint_descriptor *desc) { - int err = usb_ep_enable(ep, desc); + int err; + ep->desc = desc; + err = usb_ep_enable(ep); ep->driver_data = dbgp.gadget; return err; } @@ -268,8 +270,8 @@ static int __init dbgp_configure_endpoints(struct usb_gadget *gadget) dbgp.serial->in = dbgp.i_ep; dbgp.serial->out = dbgp.o_ep; - dbgp.serial->in_desc = &i_desc; - dbgp.serial->out_desc = &o_desc; + dbgp.serial->in->desc = &i_desc; + dbgp.serial->out->desc = &o_desc; if (gserial_setup(gadget, 1) < 0) { stp = 3; @@ -312,7 +314,6 @@ static int __init dbgp_bind(struct usb_gadget *gadget) dbgp.req->length = DBGP_REQ_EP0_LEN; gadget->ep0->driver_data = gadget; - device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket; #ifdef CONFIG_USB_G_DBGP_SERIAL dbgp.serial = kzalloc(sizeof(struct gserial), GFP_KERNEL); @@ -363,6 +364,7 @@ static int dbgp_setup(struct usb_gadget *gadget, dev_dbg(&dbgp.gadget->dev, "setup: desc device\n"); len = sizeof device_desc; data = &device_desc; + device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket; break; case USB_DT_DEBUG: dev_dbg(&dbgp.gadget->dev, "setup: desc debug\n"); diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index d3dcabc..e755a9d 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -70,6 +70,19 @@ MODULE_DESCRIPTION (DRIVER_DESC); MODULE_AUTHOR ("David Brownell"); MODULE_LICENSE ("GPL"); +struct dummy_hcd_module_parameters { + bool is_super_speed; + bool is_high_speed; +}; + +static struct dummy_hcd_module_parameters mod_data = { + .is_super_speed = false, + .is_high_speed = true, +}; +module_param_named(is_super_speed, mod_data.is_super_speed, bool, S_IRUGO); +MODULE_PARM_DESC(is_super_speed, "true to simulate SuperSpeed connection"); +module_param_named(is_high_speed, mod_data.is_high_speed, bool, S_IRUGO); +MODULE_PARM_DESC(is_high_speed, "true to simulate HighSpeed connection"); /*-------------------------------------------------------------------------*/ /* gadget side driver data structres */ @@ -152,6 +165,22 @@ enum dummy_rh_state { DUMMY_RH_RUNNING }; +struct dummy_hcd { + struct dummy *dum; + enum dummy_rh_state rh_state; + struct timer_list timer; + u32 port_status; + u32 old_status; + unsigned long re_timeout; + + struct usb_device *udev; + struct list_head urbp_list; + + unsigned active:1; + unsigned old_active:1; + unsigned resuming:1; +}; + struct dummy { spinlock_t lock; @@ -167,36 +196,27 @@ struct dummy { u16 devstatus; unsigned udc_suspended:1; unsigned pullup:1; - unsigned active:1; - unsigned old_active:1; /* * MASTER/HOST side support */ - enum dummy_rh_state rh_state; - struct timer_list timer; - u32 port_status; - u32 old_status; - unsigned resuming:1; - unsigned long re_timeout; - - struct usb_device *udev; - struct list_head urbp_list; + struct dummy_hcd *hs_hcd; + struct dummy_hcd *ss_hcd; }; -static inline struct dummy *hcd_to_dummy (struct usb_hcd *hcd) +static inline struct dummy_hcd *hcd_to_dummy_hcd(struct usb_hcd *hcd) { - return (struct dummy *) (hcd->hcd_priv); + return (struct dummy_hcd *) (hcd->hcd_priv); } -static inline struct usb_hcd *dummy_to_hcd (struct dummy *dum) +static inline struct usb_hcd *dummy_hcd_to_hcd(struct dummy_hcd *dum) { return container_of((void *) dum, struct usb_hcd, hcd_priv); } -static inline struct device *dummy_dev (struct dummy *dum) +static inline struct device *dummy_dev(struct dummy_hcd *dum) { - return dummy_to_hcd(dum)->self.controller; + return dummy_hcd_to_hcd(dum)->self.controller; } static inline struct device *udc_dev (struct dummy *dum) @@ -209,9 +229,13 @@ static inline struct dummy *ep_to_dummy (struct dummy_ep *ep) return container_of (ep->gadget, struct dummy, gadget); } -static inline struct dummy *gadget_to_dummy (struct usb_gadget *gadget) +static inline struct dummy_hcd *gadget_to_dummy_hcd(struct usb_gadget *gadget) { - return container_of (gadget, struct dummy, gadget); + struct dummy *dum = container_of(gadget, struct dummy, gadget); + if (dum->gadget.speed == USB_SPEED_SUPER) + return dum->ss_hcd; + else + return dum->hs_hcd; } static inline struct dummy *gadget_dev_to_dummy (struct device *dev) @@ -219,7 +243,7 @@ static inline struct dummy *gadget_dev_to_dummy (struct device *dev) return container_of (dev, struct dummy, gadget.dev); } -static struct dummy *the_controller; +static struct dummy the_controller; /*-------------------------------------------------------------------------*/ @@ -259,61 +283,122 @@ stop_activity (struct dummy *dum) /* driver now does any non-usb quiescing necessary */ } -/* caller must hold lock */ -static void -set_link_state (struct dummy *dum) -{ - dum->active = 0; - if ((dum->port_status & USB_PORT_STAT_POWER) == 0) - dum->port_status = 0; - - /* UDC suspend must cause a disconnect */ - else if (!dum->pullup || dum->udc_suspended) { - dum->port_status &= ~(USB_PORT_STAT_CONNECTION | - USB_PORT_STAT_ENABLE | - USB_PORT_STAT_LOW_SPEED | - USB_PORT_STAT_HIGH_SPEED | - USB_PORT_STAT_SUSPEND); - if ((dum->old_status & USB_PORT_STAT_CONNECTION) != 0) - dum->port_status |= (USB_PORT_STAT_C_CONNECTION << 16); +/** + * set_link_state_by_speed() - Sets the current state of the link according to + * the hcd speed + * @dum_hcd: pointer to the dummy_hcd structure to update the link state for + * + * This function updates the port_status according to the link state and the + * speed of the hcd. + */ +static void set_link_state_by_speed(struct dummy_hcd *dum_hcd) +{ + struct dummy *dum = dum_hcd->dum; + + if (dummy_hcd_to_hcd(dum_hcd)->speed == HCD_USB3) { + if ((dum_hcd->port_status & USB_SS_PORT_STAT_POWER) == 0) { + dum_hcd->port_status = 0; + } else if (!dum->pullup || dum->udc_suspended) { + /* UDC suspend must cause a disconnect */ + dum_hcd->port_status &= ~(USB_PORT_STAT_CONNECTION | + USB_PORT_STAT_ENABLE); + if ((dum_hcd->old_status & + USB_PORT_STAT_CONNECTION) != 0) + dum_hcd->port_status |= + (USB_PORT_STAT_C_CONNECTION << 16); + } else { + /* device is connected and not suspended */ + dum_hcd->port_status |= (USB_PORT_STAT_CONNECTION | + USB_PORT_STAT_SPEED_5GBPS) ; + if ((dum_hcd->old_status & + USB_PORT_STAT_CONNECTION) == 0) + dum_hcd->port_status |= + (USB_PORT_STAT_C_CONNECTION << 16); + if ((dum_hcd->port_status & + USB_PORT_STAT_ENABLE) == 1 && + (dum_hcd->port_status & + USB_SS_PORT_LS_U0) == 1 && + dum_hcd->rh_state != DUMMY_RH_SUSPENDED) + dum_hcd->active = 1; + } } else { - dum->port_status |= USB_PORT_STAT_CONNECTION; - if ((dum->old_status & USB_PORT_STAT_CONNECTION) == 0) - dum->port_status |= (USB_PORT_STAT_C_CONNECTION << 16); - if ((dum->port_status & USB_PORT_STAT_ENABLE) == 0) - dum->port_status &= ~USB_PORT_STAT_SUSPEND; - else if ((dum->port_status & USB_PORT_STAT_SUSPEND) == 0 && - dum->rh_state != DUMMY_RH_SUSPENDED) - dum->active = 1; + if ((dum_hcd->port_status & USB_PORT_STAT_POWER) == 0) { + dum_hcd->port_status = 0; + } else if (!dum->pullup || dum->udc_suspended) { + /* UDC suspend must cause a disconnect */ + dum_hcd->port_status &= ~(USB_PORT_STAT_CONNECTION | + USB_PORT_STAT_ENABLE | + USB_PORT_STAT_LOW_SPEED | + USB_PORT_STAT_HIGH_SPEED | + USB_PORT_STAT_SUSPEND); + if ((dum_hcd->old_status & + USB_PORT_STAT_CONNECTION) != 0) + dum_hcd->port_status |= + (USB_PORT_STAT_C_CONNECTION << 16); + } else { + dum_hcd->port_status |= USB_PORT_STAT_CONNECTION; + if ((dum_hcd->old_status & + USB_PORT_STAT_CONNECTION) == 0) + dum_hcd->port_status |= + (USB_PORT_STAT_C_CONNECTION << 16); + if ((dum_hcd->port_status & USB_PORT_STAT_ENABLE) == 0) + dum_hcd->port_status &= ~USB_PORT_STAT_SUSPEND; + else if ((dum_hcd->port_status & + USB_PORT_STAT_SUSPEND) == 0 && + dum_hcd->rh_state != DUMMY_RH_SUSPENDED) + dum_hcd->active = 1; + } } +} + +/* caller must hold lock */ +static void set_link_state(struct dummy_hcd *dum_hcd) +{ + struct dummy *dum = dum_hcd->dum; - if ((dum->port_status & USB_PORT_STAT_ENABLE) == 0 || dum->active) - dum->resuming = 0; + dum_hcd->active = 0; + if (dum->pullup) + if ((dummy_hcd_to_hcd(dum_hcd)->speed == HCD_USB3 && + dum->gadget.speed != USB_SPEED_SUPER) || + (dummy_hcd_to_hcd(dum_hcd)->speed != HCD_USB3 && + dum->gadget.speed == USB_SPEED_SUPER)) + return; - if ((dum->port_status & USB_PORT_STAT_CONNECTION) == 0 || - (dum->port_status & USB_PORT_STAT_RESET) != 0) { - if ((dum->old_status & USB_PORT_STAT_CONNECTION) != 0 && - (dum->old_status & USB_PORT_STAT_RESET) == 0 && - dum->driver) { - stop_activity (dum); - spin_unlock (&dum->lock); - dum->driver->disconnect (&dum->gadget); - spin_lock (&dum->lock); + set_link_state_by_speed(dum_hcd); + + if ((dum_hcd->port_status & USB_PORT_STAT_ENABLE) == 0 || + dum_hcd->active) + dum_hcd->resuming = 0; + + /* if !connected or reset */ + if ((dum_hcd->port_status & USB_PORT_STAT_CONNECTION) == 0 || + (dum_hcd->port_status & USB_PORT_STAT_RESET) != 0) { + /* + * We're connected and not reset (reset occurred now), + * and driver attached - disconnect! + */ + if ((dum_hcd->old_status & USB_PORT_STAT_CONNECTION) != 0 && + (dum_hcd->old_status & USB_PORT_STAT_RESET) == 0 && + dum->driver) { + stop_activity(dum); + spin_unlock(&dum->lock); + dum->driver->disconnect(&dum->gadget); + spin_lock(&dum->lock); } - } else if (dum->active != dum->old_active) { - if (dum->old_active && dum->driver->suspend) { - spin_unlock (&dum->lock); - dum->driver->suspend (&dum->gadget); - spin_lock (&dum->lock); - } else if (!dum->old_active && dum->driver->resume) { - spin_unlock (&dum->lock); - dum->driver->resume (&dum->gadget); - spin_lock (&dum->lock); + } else if (dum_hcd->active != dum_hcd->old_active) { + if (dum_hcd->old_active && dum->driver->suspend) { + spin_unlock(&dum->lock); + dum->driver->suspend(&dum->gadget); + spin_lock(&dum->lock); + } else if (!dum_hcd->old_active && dum->driver->resume) { + spin_unlock(&dum->lock); + dum->driver->resume(&dum->gadget); + spin_lock(&dum->lock); } } - dum->old_status = dum->port_status; - dum->old_active = dum->active; + dum_hcd->old_status = dum_hcd->port_status; + dum_hcd->old_active = dum_hcd->active; } /*-------------------------------------------------------------------------*/ @@ -332,6 +417,7 @@ static int dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) { struct dummy *dum; + struct dummy_hcd *dum_hcd; struct dummy_ep *ep; unsigned max; int retval; @@ -341,9 +427,19 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) || desc->bDescriptorType != USB_DT_ENDPOINT) return -EINVAL; dum = ep_to_dummy (ep); - if (!dum->driver || !is_enabled (dum)) + if (!dum->driver) + return -ESHUTDOWN; + + dum_hcd = gadget_to_dummy_hcd(&dum->gadget); + if (!is_enabled(dum_hcd)) return -ESHUTDOWN; - max = le16_to_cpu(desc->wMaxPacketSize) & 0x3ff; + + /* + * For HS/FS devices only bits 0..10 of the wMaxPacketSize represent the + * maximum packet size. + * For SS devices the wMaxPacketSize is limited by 1024. + */ + max = le16_to_cpu(desc->wMaxPacketSize) & 0x7ff; /* drivers must not request bad settings, since lower levels * (hardware or its drivers) may not check. some endpoints @@ -361,6 +457,10 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) goto done; } switch (dum->gadget.speed) { + case USB_SPEED_SUPER: + if (max == 1024) + break; + goto done; case USB_SPEED_HIGH: if (max == 512) break; @@ -379,6 +479,7 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) goto done; /* real hardware might not handle all packet sizes */ switch (dum->gadget.speed) { + case USB_SPEED_SUPER: case USB_SPEED_HIGH: if (max <= 1024) break; @@ -399,6 +500,7 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) goto done; /* real hardware might not handle all packet sizes */ switch (dum->gadget.speed) { + case USB_SPEED_SUPER: case USB_SPEED_HIGH: if (max <= 1024) break; @@ -425,10 +527,18 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) (desc->bEndpointAddress & USB_DIR_IN) ? "in" : "out", ({ char *val; switch (desc->bmAttributes & 0x03) { - case USB_ENDPOINT_XFER_BULK: val = "bulk"; break; - case USB_ENDPOINT_XFER_ISOC: val = "iso"; break; - case USB_ENDPOINT_XFER_INT: val = "intr"; break; - default: val = "ctrl"; break; + case USB_ENDPOINT_XFER_BULK: + val = "bulk"; + break; + case USB_ENDPOINT_XFER_ISOC: + val = "iso"; + break; + case USB_ENDPOINT_XFER_INT: + val = "intr"; + break; + default: + val = "ctrl"; + break; }; val; }), max); @@ -507,6 +617,7 @@ dummy_queue (struct usb_ep *_ep, struct usb_request *_req, struct dummy_ep *ep; struct dummy_request *req; struct dummy *dum; + struct dummy_hcd *dum_hcd; unsigned long flags; req = usb_request_to_dummy_request (_req); @@ -518,7 +629,8 @@ dummy_queue (struct usb_ep *_ep, struct usb_request *_req, return -EINVAL; dum = ep_to_dummy (ep); - if (!dum->driver || !is_enabled (dum)) + dum_hcd = gadget_to_dummy_hcd(&dum->gadget); + if (!dum->driver || !is_enabled(dum_hcd)) return -ESHUTDOWN; #if 0 @@ -662,24 +774,24 @@ static int dummy_g_get_frame (struct usb_gadget *_gadget) static int dummy_wakeup (struct usb_gadget *_gadget) { - struct dummy *dum; + struct dummy_hcd *dum_hcd; - dum = gadget_to_dummy (_gadget); - if (!(dum->devstatus & ( (1 << USB_DEVICE_B_HNP_ENABLE) + dum_hcd = gadget_to_dummy_hcd(_gadget); + if (!(dum_hcd->dum->devstatus & ((1 << USB_DEVICE_B_HNP_ENABLE) | (1 << USB_DEVICE_REMOTE_WAKEUP)))) return -EINVAL; - if ((dum->port_status & USB_PORT_STAT_CONNECTION) == 0) + if ((dum_hcd->port_status & USB_PORT_STAT_CONNECTION) == 0) return -ENOLINK; - if ((dum->port_status & USB_PORT_STAT_SUSPEND) == 0 && - dum->rh_state != DUMMY_RH_SUSPENDED) + if ((dum_hcd->port_status & USB_PORT_STAT_SUSPEND) == 0 && + dum_hcd->rh_state != DUMMY_RH_SUSPENDED) return -EIO; /* FIXME: What if the root hub is suspended but the port isn't? */ /* hub notices our request, issues downstream resume, etc */ - dum->resuming = 1; - dum->re_timeout = jiffies + msecs_to_jiffies(20); - mod_timer (&dummy_to_hcd (dum)->rh_timer, dum->re_timeout); + dum_hcd->resuming = 1; + dum_hcd->re_timeout = jiffies + msecs_to_jiffies(20); + mod_timer(&dummy_hcd_to_hcd(dum_hcd)->rh_timer, dum_hcd->re_timeout); return 0; } @@ -687,7 +799,7 @@ static int dummy_set_selfpowered (struct usb_gadget *_gadget, int value) { struct dummy *dum; - dum = gadget_to_dummy (_gadget); + dum = (gadget_to_dummy_hcd(_gadget))->dum; if (value) dum->devstatus |= (1 << USB_DEVICE_SELF_POWERED); else @@ -695,26 +807,68 @@ static int dummy_set_selfpowered (struct usb_gadget *_gadget, int value) return 0; } +static void dummy_udc_udpate_ep0(struct dummy *dum) +{ + u32 i; + + if (dum->gadget.speed == USB_SPEED_SUPER) { + for (i = 0; i < DUMMY_ENDPOINTS; i++) + dum->ep[i].ep.max_streams = 0x10; + dum->ep[0].ep.maxpacket = 9; + } else { + for (i = 0; i < DUMMY_ENDPOINTS; i++) + dum->ep[i].ep.max_streams = 0; + dum->ep[0].ep.maxpacket = 64; + } +} + static int dummy_pullup (struct usb_gadget *_gadget, int value) { + struct dummy_hcd *dum_hcd; struct dummy *dum; unsigned long flags; - dum = gadget_to_dummy (_gadget); + dum = gadget_dev_to_dummy(&_gadget->dev); + + if (value && dum->driver) { + if (mod_data.is_super_speed) + dum->gadget.speed = dum->driver->speed; + else if (mod_data.is_high_speed) + dum->gadget.speed = min_t(u8, USB_SPEED_HIGH, + dum->driver->speed); + else + dum->gadget.speed = USB_SPEED_FULL; + dummy_udc_udpate_ep0(dum); + + if (dum->gadget.speed < dum->driver->speed) + dev_dbg(udc_dev(dum), "This device can perform faster" + " if you connect it to a %s port...\n", + (dum->driver->speed == USB_SPEED_SUPER ? + "SuperSpeed" : "HighSpeed")); + } + dum_hcd = gadget_to_dummy_hcd(_gadget); + spin_lock_irqsave (&dum->lock, flags); dum->pullup = (value != 0); - set_link_state (dum); + set_link_state(dum_hcd); spin_unlock_irqrestore (&dum->lock, flags); - usb_hcd_poll_rh_status (dummy_to_hcd (dum)); + usb_hcd_poll_rh_status(dummy_hcd_to_hcd(dum_hcd)); return 0; } +static int dummy_udc_start(struct usb_gadget *g, + struct usb_gadget_driver *driver); +static int dummy_udc_stop(struct usb_gadget *g, + struct usb_gadget_driver *driver); + static const struct usb_gadget_ops dummy_ops = { .get_frame = dummy_g_get_frame, .wakeup = dummy_wakeup, .set_selfpowered = dummy_set_selfpowered, .pullup = dummy_pullup, + .udc_start = dummy_udc_start, + .udc_stop = dummy_udc_stop, }; /*-------------------------------------------------------------------------*/ @@ -747,18 +901,13 @@ static DEVICE_ATTR (function, S_IRUGO, show_function, NULL); * for each driver that registers: just add to a big root hub. */ -int -usb_gadget_probe_driver(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) +static int dummy_udc_start(struct usb_gadget *g, + struct usb_gadget_driver *driver) { - struct dummy *dum = the_controller; - int retval, i; + struct dummy_hcd *dum_hcd = gadget_to_dummy_hcd(g); + struct dummy *dum = dum_hcd->dum; - if (!dum) - return -EINVAL; - if (dum->driver) - return -EBUSY; - if (!bind || !driver->setup || driver->speed == USB_SPEED_UNKNOWN) + if (driver->speed == USB_SPEED_UNKNOWN) return -EINVAL; /* @@ -768,121 +917,77 @@ usb_gadget_probe_driver(struct usb_gadget_driver *driver, dum->devstatus = 0; - INIT_LIST_HEAD (&dum->gadget.ep_list); - for (i = 0; i < DUMMY_ENDPOINTS; i++) { - struct dummy_ep *ep = &dum->ep [i]; - - if (!ep_name [i]) - break; - ep->ep.name = ep_name [i]; - ep->ep.ops = &dummy_ep_ops; - list_add_tail (&ep->ep.ep_list, &dum->gadget.ep_list); - ep->halted = ep->wedged = ep->already_seen = - ep->setup_stage = 0; - ep->ep.maxpacket = ~0; - ep->last_io = jiffies; - ep->gadget = &dum->gadget; - ep->desc = NULL; - INIT_LIST_HEAD (&ep->queue); - } - - dum->gadget.ep0 = &dum->ep [0].ep; - dum->ep [0].ep.maxpacket = 64; - list_del_init (&dum->ep [0].ep.ep_list); - INIT_LIST_HEAD(&dum->fifo_req.queue); - - driver->driver.bus = NULL; dum->driver = driver; - dum->gadget.dev.driver = &driver->driver; dev_dbg (udc_dev(dum), "binding gadget driver '%s'\n", driver->driver.name); - retval = bind(&dum->gadget); - if (retval) { - dum->driver = NULL; - dum->gadget.dev.driver = NULL; - return retval; - } - - /* khubd will enumerate this in a while */ - spin_lock_irq (&dum->lock); - dum->pullup = 1; - set_link_state (dum); - spin_unlock_irq (&dum->lock); - - usb_hcd_poll_rh_status (dummy_to_hcd (dum)); return 0; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int -usb_gadget_unregister_driver (struct usb_gadget_driver *driver) +static int dummy_udc_stop(struct usb_gadget *g, + struct usb_gadget_driver *driver) { - struct dummy *dum = the_controller; - unsigned long flags; - - if (!dum) - return -ENODEV; - if (!driver || driver != dum->driver || !driver->unbind) - return -EINVAL; + struct dummy_hcd *dum_hcd = gadget_to_dummy_hcd(g); + struct dummy *dum = dum_hcd->dum; dev_dbg (udc_dev(dum), "unregister gadget driver '%s'\n", driver->driver.name); - spin_lock_irqsave (&dum->lock, flags); - dum->pullup = 0; - set_link_state (dum); - spin_unlock_irqrestore (&dum->lock, flags); - - driver->unbind (&dum->gadget); - dum->gadget.dev.driver = NULL; dum->driver = NULL; - spin_lock_irqsave (&dum->lock, flags); - dum->pullup = 0; - set_link_state (dum); - spin_unlock_irqrestore (&dum->lock, flags); - - usb_hcd_poll_rh_status (dummy_to_hcd (dum)); + dummy_pullup(&dum->gadget, 0); return 0; } -EXPORT_SYMBOL (usb_gadget_unregister_driver); #undef is_enabled -/* just declare this in any driver that really need it */ -extern int net2280_set_fifo_mode (struct usb_gadget *gadget, int mode); - -int net2280_set_fifo_mode (struct usb_gadget *gadget, int mode) -{ - return -ENOSYS; -} -EXPORT_SYMBOL (net2280_set_fifo_mode); - - /* The gadget structure is stored inside the hcd structure and will be * released along with it. */ static void dummy_gadget_release (struct device *dev) { - struct dummy *dum = gadget_dev_to_dummy (dev); + return; +} + +static void init_dummy_udc_hw(struct dummy *dum) +{ + int i; + + INIT_LIST_HEAD(&dum->gadget.ep_list); + for (i = 0; i < DUMMY_ENDPOINTS; i++) { + struct dummy_ep *ep = &dum->ep[i]; + + if (!ep_name[i]) + break; + ep->ep.name = ep_name[i]; + ep->ep.ops = &dummy_ep_ops; + list_add_tail(&ep->ep.ep_list, &dum->gadget.ep_list); + ep->halted = ep->wedged = ep->already_seen = + ep->setup_stage = 0; + ep->ep.maxpacket = ~0; + ep->last_io = jiffies; + ep->gadget = &dum->gadget; + ep->desc = NULL; + INIT_LIST_HEAD(&ep->queue); + } + + dum->gadget.ep0 = &dum->ep[0].ep; + list_del_init(&dum->ep[0].ep.ep_list); + INIT_LIST_HEAD(&dum->fifo_req.queue); - usb_put_hcd (dummy_to_hcd (dum)); +#ifdef CONFIG_USB_OTG + dum->gadget.is_otg = 1; +#endif } static int dummy_udc_probe (struct platform_device *pdev) { - struct dummy *dum = the_controller; + struct dummy *dum = &the_controller; int rc; - usb_get_hcd(dummy_to_hcd(dum)); - dum->gadget.name = gadget_name; dum->gadget.ops = &dummy_ops; dum->gadget.is_dualspeed = 1; - /* maybe claim OTG support, though we won't complete HNP */ - dum->gadget.is_otg = (dummy_to_hcd(dum)->self.otg_port != 0); - dev_set_name(&dum->gadget.dev, "gadget"); dum->gadget.dev.parent = &pdev->dev; dum->gadget.dev.release = dummy_gadget_release; @@ -892,11 +997,22 @@ static int dummy_udc_probe (struct platform_device *pdev) return rc; } + init_dummy_udc_hw(dum); + + rc = usb_add_gadget_udc(&pdev->dev, &dum->gadget); + if (rc < 0) + goto err_udc; + rc = device_create_file (&dum->gadget.dev, &dev_attr_function); if (rc < 0) - device_unregister (&dum->gadget.dev); - else - platform_set_drvdata(pdev, dum); + goto err_dev; + platform_set_drvdata(pdev, dum); + return rc; + +err_dev: + usb_del_gadget_udc(&dum->gadget); +err_udc: + device_unregister(&dum->gadget.dev); return rc; } @@ -904,37 +1020,41 @@ static int dummy_udc_remove (struct platform_device *pdev) { struct dummy *dum = platform_get_drvdata (pdev); + usb_del_gadget_udc(&dum->gadget); platform_set_drvdata (pdev, NULL); device_remove_file (&dum->gadget.dev, &dev_attr_function); device_unregister (&dum->gadget.dev); return 0; } -static int dummy_udc_suspend (struct platform_device *pdev, pm_message_t state) +static void dummy_udc_pm(struct dummy *dum, struct dummy_hcd *dum_hcd, + int suspend) { - struct dummy *dum = platform_get_drvdata(pdev); + spin_lock_irq(&dum->lock); + dum->udc_suspended = suspend; + set_link_state(dum_hcd); + spin_unlock_irq(&dum->lock); +} - dev_dbg (&pdev->dev, "%s\n", __func__); - spin_lock_irq (&dum->lock); - dum->udc_suspended = 1; - set_link_state (dum); - spin_unlock_irq (&dum->lock); +static int dummy_udc_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct dummy *dum = platform_get_drvdata(pdev); + struct dummy_hcd *dum_hcd = gadget_to_dummy_hcd(&dum->gadget); - usb_hcd_poll_rh_status (dummy_to_hcd (dum)); + dev_dbg(&pdev->dev, "%s\n", __func__); + dummy_udc_pm(dum, dum_hcd, 1); + usb_hcd_poll_rh_status(dummy_hcd_to_hcd(dum_hcd)); return 0; } -static int dummy_udc_resume (struct platform_device *pdev) +static int dummy_udc_resume(struct platform_device *pdev) { - struct dummy *dum = platform_get_drvdata(pdev); + struct dummy *dum = platform_get_drvdata(pdev); + struct dummy_hcd *dum_hcd = gadget_to_dummy_hcd(&dum->gadget); - dev_dbg (&pdev->dev, "%s\n", __func__); - spin_lock_irq (&dum->lock); - dum->udc_suspended = 0; - set_link_state (dum); - spin_unlock_irq (&dum->lock); - - usb_hcd_poll_rh_status (dummy_to_hcd (dum)); + dev_dbg(&pdev->dev, "%s\n", __func__); + dummy_udc_pm(dum, dum_hcd, 0); + usb_hcd_poll_rh_status(dummy_hcd_to_hcd(dum_hcd)); return 0; } @@ -968,7 +1088,7 @@ static int dummy_urb_enqueue ( struct urb *urb, gfp_t mem_flags ) { - struct dummy *dum; + struct dummy_hcd *dum_hcd; struct urbp *urbp; unsigned long flags; int rc; @@ -981,51 +1101,51 @@ static int dummy_urb_enqueue ( return -ENOMEM; urbp->urb = urb; - dum = hcd_to_dummy (hcd); - spin_lock_irqsave (&dum->lock, flags); + dum_hcd = hcd_to_dummy_hcd(hcd); + spin_lock_irqsave(&dum_hcd->dum->lock, flags); rc = usb_hcd_link_urb_to_ep(hcd, urb); if (rc) { kfree(urbp); goto done; } - if (!dum->udev) { - dum->udev = urb->dev; - usb_get_dev (dum->udev); - } else if (unlikely (dum->udev != urb->dev)) - dev_err (dummy_dev(dum), "usb_device address has changed!\n"); + if (!dum_hcd->udev) { + dum_hcd->udev = urb->dev; + usb_get_dev(dum_hcd->udev); + } else if (unlikely(dum_hcd->udev != urb->dev)) + dev_err(dummy_dev(dum_hcd), "usb_device address has changed!\n"); - list_add_tail (&urbp->urbp_list, &dum->urbp_list); + list_add_tail(&urbp->urbp_list, &dum_hcd->urbp_list); urb->hcpriv = urbp; if (usb_pipetype (urb->pipe) == PIPE_CONTROL) urb->error_count = 1; /* mark as a new urb */ /* kick the scheduler, it'll do the rest */ - if (!timer_pending (&dum->timer)) - mod_timer (&dum->timer, jiffies + 1); + if (!timer_pending(&dum_hcd->timer)) + mod_timer(&dum_hcd->timer, jiffies + 1); done: - spin_unlock_irqrestore(&dum->lock, flags); + spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); return rc; } static int dummy_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) { - struct dummy *dum; + struct dummy_hcd *dum_hcd; unsigned long flags; int rc; /* giveback happens automatically in timer callback, * so make sure the callback happens */ - dum = hcd_to_dummy (hcd); - spin_lock_irqsave (&dum->lock, flags); + dum_hcd = hcd_to_dummy_hcd(hcd); + spin_lock_irqsave(&dum_hcd->dum->lock, flags); rc = usb_hcd_check_unlink_urb(hcd, urb, status); - if (!rc && dum->rh_state != DUMMY_RH_RUNNING && - !list_empty(&dum->urbp_list)) - mod_timer (&dum->timer, jiffies); + if (!rc && dum_hcd->rh_state != DUMMY_RH_RUNNING && + !list_empty(&dum_hcd->urbp_list)) + mod_timer(&dum_hcd->timer, jiffies); - spin_unlock_irqrestore (&dum->lock, flags); + spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); return rc; } @@ -1162,10 +1282,25 @@ static int periodic_bytes (struct dummy *dum, struct dummy_ep *ep) tmp *= 8 /* applies to entire frame */; limit += limit * tmp; } + if (dum->gadget.speed == USB_SPEED_SUPER) { + switch (ep->desc->bmAttributes & 0x03) { + case USB_ENDPOINT_XFER_ISOC: + /* Sec. 4.4.8.2 USB3.0 Spec */ + limit = 3 * 16 * 1024 * 8; + break; + case USB_ENDPOINT_XFER_INT: + /* Sec. 4.4.7.2 USB3.0 Spec */ + limit = 3 * 1024 * 8; + break; + case USB_ENDPOINT_XFER_BULK: + default: + break; + } + } return limit; } -#define is_active(dum) ((dum->port_status & \ +#define is_active(dum_hcd) ((dum_hcd->port_status & \ (USB_PORT_STAT_CONNECTION | USB_PORT_STAT_ENABLE | \ USB_PORT_STAT_SUSPEND)) \ == (USB_PORT_STAT_CONNECTION | USB_PORT_STAT_ENABLE)) @@ -1174,7 +1309,8 @@ static struct dummy_ep *find_endpoint (struct dummy *dum, u8 address) { int i; - if (!is_active (dum)) + if (!is_active((dum->gadget.speed == USB_SPEED_SUPER ? + dum->ss_hcd : dum->hs_hcd))) return NULL; if ((address & ~USB_DIR_IN) == 0) return &dum->ep [0]; @@ -1211,11 +1347,12 @@ static struct dummy_ep *find_endpoint (struct dummy *dum, u8 address) * 1 - if the request wasn't handles * error code on error */ -static int handle_control_request(struct dummy *dum, struct urb *urb, +static int handle_control_request(struct dummy_hcd *dum_hcd, struct urb *urb, struct usb_ctrlrequest *setup, int *status) { struct dummy_ep *ep2; + struct dummy *dum = dum_hcd->dum; int ret_val = 1; unsigned w_index; unsigned w_value; @@ -1247,6 +1384,27 @@ static int handle_control_request(struct dummy *dum, struct urb *urb, case USB_DEVICE_A_ALT_HNP_SUPPORT: dum->gadget.a_alt_hnp_support = 1; break; + case USB_DEVICE_U1_ENABLE: + if (dummy_hcd_to_hcd(dum_hcd)->speed == + HCD_USB3) + w_value = USB_DEV_STAT_U1_ENABLED; + else + ret_val = -EOPNOTSUPP; + break; + case USB_DEVICE_U2_ENABLE: + if (dummy_hcd_to_hcd(dum_hcd)->speed == + HCD_USB3) + w_value = USB_DEV_STAT_U2_ENABLED; + else + ret_val = -EOPNOTSUPP; + break; + case USB_DEVICE_LTM_ENABLE: + if (dummy_hcd_to_hcd(dum_hcd)->speed == + HCD_USB3) + w_value = USB_DEV_STAT_LTM_ENABLED; + else + ret_val = -EOPNOTSUPP; + break; default: ret_val = -EOPNOTSUPP; } @@ -1273,6 +1431,27 @@ static int handle_control_request(struct dummy *dum, struct urb *urb, case USB_DEVICE_REMOTE_WAKEUP: w_value = USB_DEVICE_REMOTE_WAKEUP; break; + case USB_DEVICE_U1_ENABLE: + if (dummy_hcd_to_hcd(dum_hcd)->speed == + HCD_USB3) + w_value = USB_DEV_STAT_U1_ENABLED; + else + ret_val = -EOPNOTSUPP; + break; + case USB_DEVICE_U2_ENABLE: + if (dummy_hcd_to_hcd(dum_hcd)->speed == + HCD_USB3) + w_value = USB_DEV_STAT_U2_ENABLED; + else + ret_val = -EOPNOTSUPP; + break; + case USB_DEVICE_LTM_ENABLE: + if (dummy_hcd_to_hcd(dum_hcd)->speed == + HCD_USB3) + w_value = USB_DEV_STAT_LTM_ENABLED; + else + ret_val = -EOPNOTSUPP; + break; default: ret_val = -EOPNOTSUPP; break; @@ -1334,9 +1513,10 @@ static int handle_control_request(struct dummy *dum, struct urb *urb, /* drive both sides of the transfers; looks like irq handlers to * both drivers except the callbacks aren't in_irq(). */ -static void dummy_timer (unsigned long _dum) +static void dummy_timer(unsigned long _dum_hcd) { - struct dummy *dum = (struct dummy *) _dum; + struct dummy_hcd *dum_hcd = (struct dummy_hcd *) _dum_hcd; + struct dummy *dum = dum_hcd->dum; struct urbp *urbp, *tmp; unsigned long flags; int limit, total; @@ -1353,8 +1533,12 @@ static void dummy_timer (unsigned long _dum) case USB_SPEED_HIGH: total = 512/*bytes*/ * 13/*packets*/ * 8/*uframes*/; break; + case USB_SPEED_SUPER: + /* Bus speed is 500000 bytes/ms, so use a little less */ + total = 490000; + break; default: - dev_err (dummy_dev(dum), "bogus device speed\n"); + dev_err(dummy_dev(dum_hcd), "bogus device speed\n"); return; } @@ -1363,8 +1547,8 @@ static void dummy_timer (unsigned long _dum) /* look at each urb queued by the host side driver */ spin_lock_irqsave (&dum->lock, flags); - if (!dum->udev) { - dev_err (dummy_dev(dum), + if (!dum_hcd->udev) { + dev_err(dummy_dev(dum_hcd), "timer fired with no URBs pending?\n"); spin_unlock_irqrestore (&dum->lock, flags); return; @@ -1377,7 +1561,7 @@ static void dummy_timer (unsigned long _dum) } restart: - list_for_each_entry_safe (urbp, tmp, &dum->urbp_list, urbp_list) { + list_for_each_entry_safe(urbp, tmp, &dum_hcd->urbp_list, urbp_list) { struct urb *urb; struct dummy_request *req; u8 address; @@ -1388,7 +1572,7 @@ restart: urb = urbp->urb; if (urb->unlinked) goto return_urb; - else if (dum->rh_state != DUMMY_RH_RUNNING) + else if (dum_hcd->rh_state != DUMMY_RH_RUNNING) continue; type = usb_pipetype (urb->pipe); @@ -1406,7 +1590,7 @@ restart: ep = find_endpoint(dum, address); if (!ep) { /* set_configuration() disagreement */ - dev_dbg (dummy_dev(dum), + dev_dbg(dummy_dev(dum_hcd), "no ep configured for urb %p\n", urb); status = -EPROTO; @@ -1422,7 +1606,7 @@ restart: } if (ep->halted && !ep->setup_stage) { /* NOTE: must not be iso! */ - dev_dbg (dummy_dev(dum), "ep %s halted, urb %p\n", + dev_dbg(dummy_dev(dum_hcd), "ep %s halted, urb %p\n", ep->ep.name, urb); status = -EPIPE; goto return_urb; @@ -1457,7 +1641,7 @@ restart: ep->setup_stage = 0; ep->halted = 0; - value = handle_control_request(dum, urb, &setup, + value = handle_control_request(dum_hcd, urb, &setup, &status); /* gadget driver handles all other requests. block @@ -1527,20 +1711,20 @@ return_urb: if (ep) ep->already_seen = ep->setup_stage = 0; - usb_hcd_unlink_urb_from_ep(dummy_to_hcd(dum), urb); + usb_hcd_unlink_urb_from_ep(dummy_hcd_to_hcd(dum_hcd), urb); spin_unlock (&dum->lock); - usb_hcd_giveback_urb(dummy_to_hcd(dum), urb, status); + usb_hcd_giveback_urb(dummy_hcd_to_hcd(dum_hcd), urb, status); spin_lock (&dum->lock); goto restart; } - if (list_empty (&dum->urbp_list)) { - usb_put_dev (dum->udev); - dum->udev = NULL; - } else if (dum->rh_state == DUMMY_RH_RUNNING) { + if (list_empty(&dum_hcd->urbp_list)) { + usb_put_dev(dum_hcd->udev); + dum_hcd->udev = NULL; + } else if (dum_hcd->rh_state == DUMMY_RH_RUNNING) { /* want a 1 msec delay here */ - mod_timer (&dum->timer, jiffies + msecs_to_jiffies(1)); + mod_timer(&dum_hcd->timer, jiffies + msecs_to_jiffies(1)); } spin_unlock_irqrestore (&dum->lock, flags); @@ -1557,36 +1741,48 @@ return_urb: static int dummy_hub_status (struct usb_hcd *hcd, char *buf) { - struct dummy *dum; + struct dummy_hcd *dum_hcd; unsigned long flags; int retval = 0; - dum = hcd_to_dummy (hcd); + dum_hcd = hcd_to_dummy_hcd(hcd); - spin_lock_irqsave (&dum->lock, flags); + spin_lock_irqsave(&dum_hcd->dum->lock, flags); if (!HCD_HW_ACCESSIBLE(hcd)) goto done; - if (dum->resuming && time_after_eq (jiffies, dum->re_timeout)) { - dum->port_status |= (USB_PORT_STAT_C_SUSPEND << 16); - dum->port_status &= ~USB_PORT_STAT_SUSPEND; - set_link_state (dum); + if (dum_hcd->resuming && time_after_eq(jiffies, dum_hcd->re_timeout)) { + dum_hcd->port_status |= (USB_PORT_STAT_C_SUSPEND << 16); + dum_hcd->port_status &= ~USB_PORT_STAT_SUSPEND; + set_link_state(dum_hcd); } - if ((dum->port_status & PORT_C_MASK) != 0) { + if ((dum_hcd->port_status & PORT_C_MASK) != 0) { *buf = (1 << 1); - dev_dbg (dummy_dev(dum), "port status 0x%08x has changes\n", - dum->port_status); + dev_dbg(dummy_dev(dum_hcd), "port status 0x%08x has changes\n", + dum_hcd->port_status); retval = 1; - if (dum->rh_state == DUMMY_RH_SUSPENDED) + if (dum_hcd->rh_state == DUMMY_RH_SUSPENDED) usb_hcd_resume_root_hub (hcd); } done: - spin_unlock_irqrestore (&dum->lock, flags); + spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); return retval; } static inline void +ss_hub_descriptor(struct usb_hub_descriptor *desc) +{ + memset(desc, 0, sizeof *desc); + desc->bDescriptorType = 0x2a; + desc->bDescLength = 12; + desc->wHubCharacteristics = cpu_to_le16(0x0001); + desc->bNbrPorts = 1; + desc->u.ss.bHubHdrDecLat = 0x04; /* Worst case: 0.4 micro sec*/ + desc->u.ss.DeviceRemovable = 0xffff; +} + +static inline void hub_descriptor (struct usb_hub_descriptor *desc) { memset (desc, 0, sizeof *desc); @@ -1606,39 +1802,64 @@ static int dummy_hub_control ( char *buf, u16 wLength ) { - struct dummy *dum; + struct dummy_hcd *dum_hcd; int retval = 0; unsigned long flags; if (!HCD_HW_ACCESSIBLE(hcd)) return -ETIMEDOUT; - dum = hcd_to_dummy (hcd); - spin_lock_irqsave (&dum->lock, flags); + dum_hcd = hcd_to_dummy_hcd(hcd); + + spin_lock_irqsave(&dum_hcd->dum->lock, flags); switch (typeReq) { case ClearHubFeature: break; case ClearPortFeature: switch (wValue) { case USB_PORT_FEAT_SUSPEND: - if (dum->port_status & USB_PORT_STAT_SUSPEND) { + if (hcd->speed == HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "USB_PORT_FEAT_SUSPEND req not " + "supported for USB 3.0 roothub\n"); + goto error; + } + if (dum_hcd->port_status & USB_PORT_STAT_SUSPEND) { /* 20msec resume signaling */ - dum->resuming = 1; - dum->re_timeout = jiffies + + dum_hcd->resuming = 1; + dum_hcd->re_timeout = jiffies + msecs_to_jiffies(20); } break; case USB_PORT_FEAT_POWER: - if (dum->port_status & USB_PORT_STAT_POWER) - dev_dbg (dummy_dev(dum), "power-off\n"); + if (hcd->speed == HCD_USB3) { + if (dum_hcd->port_status & USB_PORT_STAT_POWER) + dev_dbg(dummy_dev(dum_hcd), + "power-off\n"); + } else + if (dum_hcd->port_status & + USB_SS_PORT_STAT_POWER) + dev_dbg(dummy_dev(dum_hcd), + "power-off\n"); /* FALLS THROUGH */ default: - dum->port_status &= ~(1 << wValue); - set_link_state (dum); + dum_hcd->port_status &= ~(1 << wValue); + set_link_state(dum_hcd); } break; case GetHubDescriptor: - hub_descriptor ((struct usb_hub_descriptor *) buf); + if (hcd->speed == HCD_USB3 && + (wLength < USB_DT_SS_HUB_SIZE || + wValue != (USB_DT_SS_HUB << 8))) { + dev_dbg(dummy_dev(dum_hcd), + "Wrong hub descriptor type for " + "USB 3.0 roothub.\n"); + goto error; + } + if (hcd->speed == HCD_USB3) + ss_hub_descriptor((struct usb_hub_descriptor *) buf); + else + hub_descriptor((struct usb_hub_descriptor *) buf); break; case GetHubStatus: *(__le32 *) buf = cpu_to_le32 (0); @@ -1650,127 +1871,210 @@ static int dummy_hub_control ( /* whoever resets or resumes must GetPortStatus to * complete it!! */ - if (dum->resuming && - time_after_eq (jiffies, dum->re_timeout)) { - dum->port_status |= (USB_PORT_STAT_C_SUSPEND << 16); - dum->port_status &= ~USB_PORT_STAT_SUSPEND; + if (dum_hcd->resuming && + time_after_eq(jiffies, dum_hcd->re_timeout)) { + dum_hcd->port_status |= (USB_PORT_STAT_C_SUSPEND << 16); + dum_hcd->port_status &= ~USB_PORT_STAT_SUSPEND; } - if ((dum->port_status & USB_PORT_STAT_RESET) != 0 && - time_after_eq (jiffies, dum->re_timeout)) { - dum->port_status |= (USB_PORT_STAT_C_RESET << 16); - dum->port_status &= ~USB_PORT_STAT_RESET; - if (dum->pullup) { - dum->port_status |= USB_PORT_STAT_ENABLE; - /* give it the best speed we agree on */ - dum->gadget.speed = dum->driver->speed; - dum->gadget.ep0->maxpacket = 64; - switch (dum->gadget.speed) { - case USB_SPEED_HIGH: - dum->port_status |= - USB_PORT_STAT_HIGH_SPEED; - break; - case USB_SPEED_LOW: - dum->gadget.ep0->maxpacket = 8; - dum->port_status |= - USB_PORT_STAT_LOW_SPEED; - break; - default: - dum->gadget.speed = USB_SPEED_FULL; - break; + if ((dum_hcd->port_status & USB_PORT_STAT_RESET) != 0 && + time_after_eq(jiffies, dum_hcd->re_timeout)) { + dum_hcd->port_status |= (USB_PORT_STAT_C_RESET << 16); + dum_hcd->port_status &= ~USB_PORT_STAT_RESET; + if (dum_hcd->dum->pullup) { + dum_hcd->port_status |= USB_PORT_STAT_ENABLE; + + if (hcd->speed < HCD_USB3) { + switch (dum_hcd->dum->gadget.speed) { + case USB_SPEED_HIGH: + dum_hcd->port_status |= + USB_PORT_STAT_HIGH_SPEED; + break; + case USB_SPEED_LOW: + dum_hcd->dum->gadget.ep0-> + maxpacket = 8; + dum_hcd->port_status |= + USB_PORT_STAT_LOW_SPEED; + break; + default: + dum_hcd->dum->gadget.speed = + USB_SPEED_FULL; + break; + } } } } - set_link_state (dum); - ((__le16 *) buf)[0] = cpu_to_le16 (dum->port_status); - ((__le16 *) buf)[1] = cpu_to_le16 (dum->port_status >> 16); + set_link_state(dum_hcd); + ((__le16 *) buf)[0] = cpu_to_le16 (dum_hcd->port_status); + ((__le16 *) buf)[1] = cpu_to_le16 (dum_hcd->port_status >> 16); break; case SetHubFeature: retval = -EPIPE; break; case SetPortFeature: switch (wValue) { + case USB_PORT_FEAT_LINK_STATE: + if (hcd->speed != HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "USB_PORT_FEAT_LINK_STATE req not " + "supported for USB 2.0 roothub\n"); + goto error; + } + /* + * Since this is dummy we don't have an actual link so + * there is nothing to do for the SET_LINK_STATE cmd + */ + break; + case USB_PORT_FEAT_U1_TIMEOUT: + case USB_PORT_FEAT_U2_TIMEOUT: + /* TODO: add suspend/resume support! */ + if (hcd->speed != HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "USB_PORT_FEAT_U1/2_TIMEOUT req not " + "supported for USB 2.0 roothub\n"); + goto error; + } + break; case USB_PORT_FEAT_SUSPEND: - if (dum->active) { - dum->port_status |= USB_PORT_STAT_SUSPEND; + /* Applicable only for USB2.0 hub */ + if (hcd->speed == HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "USB_PORT_FEAT_SUSPEND req not " + "supported for USB 3.0 roothub\n"); + goto error; + } + if (dum_hcd->active) { + dum_hcd->port_status |= USB_PORT_STAT_SUSPEND; /* HNP would happen here; for now we * assume b_bus_req is always true. */ - set_link_state (dum); + set_link_state(dum_hcd); if (((1 << USB_DEVICE_B_HNP_ENABLE) - & dum->devstatus) != 0) - dev_dbg (dummy_dev(dum), + & dum_hcd->dum->devstatus) != 0) + dev_dbg(dummy_dev(dum_hcd), "no HNP yet!\n"); } break; case USB_PORT_FEAT_POWER: - dum->port_status |= USB_PORT_STAT_POWER; - set_link_state (dum); + if (hcd->speed == HCD_USB3) + dum_hcd->port_status |= USB_SS_PORT_STAT_POWER; + else + dum_hcd->port_status |= USB_PORT_STAT_POWER; + set_link_state(dum_hcd); break; + case USB_PORT_FEAT_BH_PORT_RESET: + /* Applicable only for USB3.0 hub */ + if (hcd->speed != HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "USB_PORT_FEAT_BH_PORT_RESET req not " + "supported for USB 2.0 roothub\n"); + goto error; + } + /* FALLS THROUGH */ case USB_PORT_FEAT_RESET: /* if it's already enabled, disable */ - dum->port_status &= ~(USB_PORT_STAT_ENABLE + if (hcd->speed == HCD_USB3) { + dum_hcd->port_status = 0; + dum_hcd->port_status = + (USB_SS_PORT_STAT_POWER | + USB_PORT_STAT_CONNECTION | + USB_PORT_STAT_RESET); + } else + dum_hcd->port_status &= ~(USB_PORT_STAT_ENABLE | USB_PORT_STAT_LOW_SPEED | USB_PORT_STAT_HIGH_SPEED); - dum->devstatus = 0; - /* 50msec reset signaling */ - dum->re_timeout = jiffies + msecs_to_jiffies(50); + /* + * We want to reset device status. All but the + * Self powered feature + */ + dum_hcd->dum->devstatus &= + (1 << USB_DEVICE_SELF_POWERED); + /* + * FIXME USB3.0: what is the correct reset signaling + * interval? Is it still 50msec as for HS? + */ + dum_hcd->re_timeout = jiffies + msecs_to_jiffies(50); /* FALLS THROUGH */ default: - if ((dum->port_status & USB_PORT_STAT_POWER) != 0) { - dum->port_status |= (1 << wValue); - set_link_state (dum); - } + if (hcd->speed == HCD_USB3) { + if ((dum_hcd->port_status & + USB_SS_PORT_STAT_POWER) != 0) { + dum_hcd->port_status |= (1 << wValue); + set_link_state(dum_hcd); + } + } else + if ((dum_hcd->port_status & + USB_PORT_STAT_POWER) != 0) { + dum_hcd->port_status |= (1 << wValue); + set_link_state(dum_hcd); + } + } + break; + case GetPortErrorCount: + if (hcd->speed != HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "GetPortErrorCount req not " + "supported for USB 2.0 roothub\n"); + goto error; + } + /* We'll always return 0 since this is a dummy hub */ + *(__le32 *) buf = cpu_to_le32(0); + break; + case SetHubDepth: + if (hcd->speed != HCD_USB3) { + dev_dbg(dummy_dev(dum_hcd), + "SetHubDepth req not supported for " + "USB 2.0 roothub\n"); + goto error; } break; - default: - dev_dbg (dummy_dev(dum), + dev_dbg(dummy_dev(dum_hcd), "hub control req%04x v%04x i%04x l%d\n", typeReq, wValue, wIndex, wLength); - +error: /* "protocol stall" on error */ retval = -EPIPE; } - spin_unlock_irqrestore (&dum->lock, flags); + spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); - if ((dum->port_status & PORT_C_MASK) != 0) + if ((dum_hcd->port_status & PORT_C_MASK) != 0) usb_hcd_poll_rh_status (hcd); return retval; } static int dummy_bus_suspend (struct usb_hcd *hcd) { - struct dummy *dum = hcd_to_dummy (hcd); + struct dummy_hcd *dum_hcd = hcd_to_dummy_hcd(hcd); dev_dbg (&hcd->self.root_hub->dev, "%s\n", __func__); - spin_lock_irq (&dum->lock); - dum->rh_state = DUMMY_RH_SUSPENDED; - set_link_state (dum); + spin_lock_irq(&dum_hcd->dum->lock); + dum_hcd->rh_state = DUMMY_RH_SUSPENDED; + set_link_state(dum_hcd); hcd->state = HC_STATE_SUSPENDED; - spin_unlock_irq (&dum->lock); + spin_unlock_irq(&dum_hcd->dum->lock); return 0; } static int dummy_bus_resume (struct usb_hcd *hcd) { - struct dummy *dum = hcd_to_dummy (hcd); + struct dummy_hcd *dum_hcd = hcd_to_dummy_hcd(hcd); int rc = 0; dev_dbg (&hcd->self.root_hub->dev, "%s\n", __func__); - spin_lock_irq (&dum->lock); + spin_lock_irq(&dum_hcd->dum->lock); if (!HCD_HW_ACCESSIBLE(hcd)) { rc = -ESHUTDOWN; } else { - dum->rh_state = DUMMY_RH_RUNNING; - set_link_state (dum); - if (!list_empty(&dum->urbp_list)) - mod_timer (&dum->timer, jiffies); + dum_hcd->rh_state = DUMMY_RH_RUNNING; + set_link_state(dum_hcd); + if (!list_empty(&dum_hcd->urbp_list)) + mod_timer(&dum_hcd->timer, jiffies); hcd->state = HC_STATE_RUNNING; } - spin_unlock_irq (&dum->lock); + spin_unlock_irq(&dum_hcd->dum->lock); return rc; } @@ -1786,18 +2090,37 @@ show_urb (char *buf, size_t size, struct urb *urb) urb, ({ char *s; switch (urb->dev->speed) { - case USB_SPEED_LOW: s = "ls"; break; - case USB_SPEED_FULL: s = "fs"; break; - case USB_SPEED_HIGH: s = "hs"; break; - default: s = "?"; break; + case USB_SPEED_LOW: + s = "ls"; + break; + case USB_SPEED_FULL: + s = "fs"; + break; + case USB_SPEED_HIGH: + s = "hs"; + break; + case USB_SPEED_SUPER: + s = "ss"; + break; + default: + s = "?"; + break; }; s; }), ep, ep ? (usb_pipein (urb->pipe) ? "in" : "out") : "", ({ char *s; \ switch (usb_pipetype (urb->pipe)) { \ - case PIPE_CONTROL: s = ""; break; \ - case PIPE_BULK: s = "-bulk"; break; \ - case PIPE_INTERRUPT: s = "-int"; break; \ - default: s = "-iso"; break; \ + case PIPE_CONTROL: \ + s = ""; \ + break; \ + case PIPE_BULK: \ + s = "-bulk"; \ + break; \ + case PIPE_INTERRUPT: \ + s = "-int"; \ + break; \ + default: \ + s = "-iso"; \ + break; \ }; s;}), urb->actual_length, urb->transfer_buffer_length); } @@ -1806,43 +2129,63 @@ static ssize_t show_urbs (struct device *dev, struct device_attribute *attr, char *buf) { struct usb_hcd *hcd = dev_get_drvdata (dev); - struct dummy *dum = hcd_to_dummy (hcd); + struct dummy_hcd *dum_hcd = hcd_to_dummy_hcd(hcd); struct urbp *urbp; size_t size = 0; unsigned long flags; - spin_lock_irqsave (&dum->lock, flags); - list_for_each_entry (urbp, &dum->urbp_list, urbp_list) { + spin_lock_irqsave(&dum_hcd->dum->lock, flags); + list_for_each_entry(urbp, &dum_hcd->urbp_list, urbp_list) { size_t temp; temp = show_urb (buf, PAGE_SIZE - size, urbp->urb); buf += temp; size += temp; } - spin_unlock_irqrestore (&dum->lock, flags); + spin_unlock_irqrestore(&dum_hcd->dum->lock, flags); return size; } static DEVICE_ATTR (urbs, S_IRUGO, show_urbs, NULL); -static int dummy_start (struct usb_hcd *hcd) +static int dummy_start_ss(struct dummy_hcd *dum_hcd) { - struct dummy *dum; + init_timer(&dum_hcd->timer); + dum_hcd->timer.function = dummy_timer; + dum_hcd->timer.data = (unsigned long)dum_hcd; + dum_hcd->rh_state = DUMMY_RH_RUNNING; + INIT_LIST_HEAD(&dum_hcd->urbp_list); + dummy_hcd_to_hcd(dum_hcd)->power_budget = POWER_BUDGET; + dummy_hcd_to_hcd(dum_hcd)->state = HC_STATE_RUNNING; + dummy_hcd_to_hcd(dum_hcd)->uses_new_polling = 1; +#ifdef CONFIG_USB_OTG + dummy_hcd_to_hcd(dum_hcd)->self.otg_port = 1; +#endif + return 0; + + /* FIXME 'urbs' should be a per-device thing, maybe in usbcore */ + return device_create_file(dummy_dev(dum_hcd), &dev_attr_urbs); +} - dum = hcd_to_dummy (hcd); +static int dummy_start(struct usb_hcd *hcd) +{ + struct dummy_hcd *dum_hcd = hcd_to_dummy_hcd(hcd); /* * MASTER side init ... we emulate a root hub that'll only ever * talk to one device (the slave side). Also appears in sysfs, * just like more familiar pci-based HCDs. */ - spin_lock_init (&dum->lock); - init_timer (&dum->timer); - dum->timer.function = dummy_timer; - dum->timer.data = (unsigned long) dum; - dum->rh_state = DUMMY_RH_RUNNING; + if (!usb_hcd_is_primary_hcd(hcd)) + return dummy_start_ss(dum_hcd); - INIT_LIST_HEAD (&dum->urbp_list); + spin_lock_init(&dum_hcd->dum->lock); + init_timer(&dum_hcd->timer); + dum_hcd->timer.function = dummy_timer; + dum_hcd->timer.data = (unsigned long)dum_hcd; + dum_hcd->rh_state = DUMMY_RH_RUNNING; + + INIT_LIST_HEAD(&dum_hcd->urbp_list); hcd->power_budget = POWER_BUDGET; hcd->state = HC_STATE_RUNNING; @@ -1853,18 +2196,17 @@ static int dummy_start (struct usb_hcd *hcd) #endif /* FIXME 'urbs' should be a per-device thing, maybe in usbcore */ - return device_create_file (dummy_dev(dum), &dev_attr_urbs); + return device_create_file(dummy_dev(dum_hcd), &dev_attr_urbs); } static void dummy_stop (struct usb_hcd *hcd) { struct dummy *dum; - dum = hcd_to_dummy (hcd); - - device_remove_file (dummy_dev(dum), &dev_attr_urbs); - usb_gadget_unregister_driver (dum->driver); - dev_info (dummy_dev(dum), "stopped\n"); + dum = (hcd_to_dummy_hcd(hcd))->dum; + device_remove_file(dummy_dev(hcd_to_dummy_hcd(hcd)), &dev_attr_urbs); + usb_gadget_unregister_driver(dum->driver); + dev_info(dummy_dev(hcd_to_dummy_hcd(hcd)), "stopped\n"); } /*-------------------------------------------------------------------------*/ @@ -1874,13 +2216,59 @@ static int dummy_h_get_frame (struct usb_hcd *hcd) return dummy_g_get_frame (NULL); } -static const struct hc_driver dummy_hcd = { +static int dummy_setup(struct usb_hcd *hcd) +{ + if (usb_hcd_is_primary_hcd(hcd)) { + the_controller.hs_hcd = hcd_to_dummy_hcd(hcd); + the_controller.hs_hcd->dum = &the_controller; + /* + * Mark the first roothub as being USB 2.0. + * The USB 3.0 roothub will be registered later by + * dummy_hcd_probe() + */ + hcd->speed = HCD_USB2; + hcd->self.root_hub->speed = USB_SPEED_HIGH; + } else { + the_controller.ss_hcd = hcd_to_dummy_hcd(hcd); + the_controller.ss_hcd->dum = &the_controller; + hcd->speed = HCD_USB3; + hcd->self.root_hub->speed = USB_SPEED_SUPER; + } + return 0; +} + +/* Change a group of bulk endpoints to support multiple stream IDs */ +int dummy_alloc_streams(struct usb_hcd *hcd, struct usb_device *udev, + struct usb_host_endpoint **eps, unsigned int num_eps, + unsigned int num_streams, gfp_t mem_flags) +{ + if (hcd->speed != HCD_USB3) + dev_dbg(dummy_dev(hcd_to_dummy_hcd(hcd)), + "%s() - ERROR! Not supported for USB2.0 roothub\n", + __func__); + return 0; +} + +/* Reverts a group of bulk endpoints back to not using stream IDs. */ +int dummy_free_streams(struct usb_hcd *hcd, struct usb_device *udev, + struct usb_host_endpoint **eps, unsigned int num_eps, + gfp_t mem_flags) +{ + if (hcd->speed != HCD_USB3) + dev_dbg(dummy_dev(hcd_to_dummy_hcd(hcd)), + "%s() - ERROR! Not supported for USB2.0 roothub\n", + __func__); + return 0; +} + +static struct hc_driver dummy_hcd = { .description = (char *) driver_name, .product_desc = "Dummy host controller", - .hcd_priv_size = sizeof(struct dummy), + .hcd_priv_size = sizeof(struct dummy_hcd), - .flags = HCD_USB2, + .flags = HCD_USB3 | HCD_SHARED, + .reset = dummy_setup, .start = dummy_start, .stop = dummy_stop, @@ -1893,51 +2281,85 @@ static const struct hc_driver dummy_hcd = { .hub_control = dummy_hub_control, .bus_suspend = dummy_bus_suspend, .bus_resume = dummy_bus_resume, + + .alloc_streams = dummy_alloc_streams, + .free_streams = dummy_free_streams, }; static int dummy_hcd_probe(struct platform_device *pdev) { - struct usb_hcd *hcd; + struct usb_hcd *hs_hcd; + struct usb_hcd *ss_hcd; int retval; dev_info(&pdev->dev, "%s, driver " DRIVER_VERSION "\n", driver_desc); - hcd = usb_create_hcd(&dummy_hcd, &pdev->dev, dev_name(&pdev->dev)); - if (!hcd) + if (!mod_data.is_super_speed) + dummy_hcd.flags = HCD_USB2; + hs_hcd = usb_create_hcd(&dummy_hcd, &pdev->dev, dev_name(&pdev->dev)); + if (!hs_hcd) return -ENOMEM; - the_controller = hcd_to_dummy (hcd); - hcd->has_tt = 1; + hs_hcd->has_tt = 1; - retval = usb_add_hcd(hcd, 0, 0); + retval = usb_add_hcd(hs_hcd, 0, 0); if (retval != 0) { - usb_put_hcd (hcd); - the_controller = NULL; + usb_put_hcd(hs_hcd); + return retval; + } + + if (mod_data.is_super_speed) { + ss_hcd = usb_create_shared_hcd(&dummy_hcd, &pdev->dev, + dev_name(&pdev->dev), hs_hcd); + if (!ss_hcd) { + retval = -ENOMEM; + goto dealloc_usb2_hcd; + } + + retval = usb_add_hcd(ss_hcd, 0, 0); + if (retval) + goto put_usb3_hcd; } + return 0; + +put_usb3_hcd: + usb_put_hcd(ss_hcd); +dealloc_usb2_hcd: + usb_put_hcd(hs_hcd); + the_controller.hs_hcd = the_controller.ss_hcd = NULL; return retval; } -static int dummy_hcd_remove (struct platform_device *pdev) +static int dummy_hcd_remove(struct platform_device *pdev) { - struct usb_hcd *hcd; + struct dummy *dum; + + dum = (hcd_to_dummy_hcd(platform_get_drvdata(pdev)))->dum; + + if (dum->ss_hcd) { + usb_remove_hcd(dummy_hcd_to_hcd(dum->ss_hcd)); + usb_put_hcd(dummy_hcd_to_hcd(dum->ss_hcd)); + } + + usb_remove_hcd(dummy_hcd_to_hcd(dum->hs_hcd)); + usb_put_hcd(dummy_hcd_to_hcd(dum->hs_hcd)); + + the_controller.hs_hcd = NULL; + the_controller.ss_hcd = NULL; - hcd = platform_get_drvdata (pdev); - usb_remove_hcd (hcd); - usb_put_hcd (hcd); - the_controller = NULL; return 0; } static int dummy_hcd_suspend (struct platform_device *pdev, pm_message_t state) { struct usb_hcd *hcd; - struct dummy *dum; + struct dummy_hcd *dum_hcd; int rc = 0; dev_dbg (&pdev->dev, "%s\n", __func__); hcd = platform_get_drvdata (pdev); - dum = hcd_to_dummy (hcd); - if (dum->rh_state == DUMMY_RH_RUNNING) { + dum_hcd = hcd_to_dummy_hcd(hcd); + if (dum_hcd->rh_state == DUMMY_RH_RUNNING) { dev_warn(&pdev->dev, "Root hub isn't suspended!\n"); rc = -EBUSY; } else @@ -1980,6 +2402,9 @@ static int __init init (void) if (usb_disabled ()) return -ENODEV; + if (!mod_data.is_high_speed && mod_data.is_super_speed) + return -EINVAL; + the_hcd_pdev = platform_device_alloc(driver_name, -1); if (!the_hcd_pdev) return retval; @@ -1997,7 +2422,8 @@ static int __init init (void) retval = platform_device_add(the_hcd_pdev); if (retval < 0) goto err_add_hcd; - if (!the_controller) { + if (!the_controller.hs_hcd || + (!the_controller.ss_hcd && mod_data.is_super_speed)) { /* * The hcd was added successfully but its probe function failed * for some reason. diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c index 9b7360f..7a7e6b7 100644 --- a/drivers/usb/gadget/epautoconf.c +++ b/drivers/usb/gadget/epautoconf.c @@ -63,13 +63,16 @@ static int ep_matches ( struct usb_gadget *gadget, struct usb_ep *ep, - struct usb_endpoint_descriptor *desc + struct usb_endpoint_descriptor *desc, + struct usb_ss_ep_comp_descriptor *ep_comp ) { u8 type; const char *tmp; u16 max; + int num_req_streams = 0; + /* endpoint already claimed? */ if (NULL != ep->driver_data) return 0; @@ -129,6 +132,22 @@ ep_matches ( } /* + * Get the number of required streams from the EP companion + * descriptor and see if the EP matches it + */ + if (usb_endpoint_xfer_bulk(desc)) { + if (ep_comp) { + num_req_streams = ep_comp->bmAttributes & 0x1f; + if (num_req_streams > ep->max_streams) + return 0; + /* Update the ep_comp descriptor if needed */ + if (num_req_streams != ep->max_streams) + ep_comp->bmAttributes = ep->max_streams; + } + + } + + /* * If the protocol driver hasn't yet decided on wMaxPacketSize * and wants to know the maximum possible, provide the info. */ @@ -142,13 +161,13 @@ ep_matches ( max = 0x7ff & le16_to_cpu(desc->wMaxPacketSize); switch (type) { case USB_ENDPOINT_XFER_INT: - /* INT: limit 64 bytes full speed, 1024 high speed */ + /* INT: limit 64 bytes full speed, 1024 high/super speed */ if (!gadget->is_dualspeed && max > 64) return 0; /* FALLTHROUGH */ case USB_ENDPOINT_XFER_ISOC: - /* ISO: limit 1023 bytes full speed, 1024 high speed */ + /* ISO: limit 1023 bytes full speed, 1024 high/super speed */ if (ep->maxpacket < max) return 0; if (!gadget->is_dualspeed && max > 1023) @@ -183,7 +202,7 @@ ep_matches ( } /* report (variable) full speed bulk maxpacket */ - if (USB_ENDPOINT_XFER_BULK == type) { + if ((USB_ENDPOINT_XFER_BULK == type) && !ep_comp) { int size = ep->maxpacket; /* min() doesn't work on bitfields with gcc-3.5 */ @@ -191,6 +210,7 @@ ep_matches ( size = 64; desc->wMaxPacketSize = cpu_to_le16(size); } + ep->address = desc->bEndpointAddress; return 1; } @@ -207,38 +227,53 @@ find_ep (struct usb_gadget *gadget, const char *name) } /** - * usb_ep_autoconfig - choose an endpoint matching the descriptor + * usb_ep_autoconfig_ss() - choose an endpoint matching the ep + * descriptor and ep companion descriptor * @gadget: The device to which the endpoint must belong. * @desc: Endpoint descriptor, with endpoint direction and transfer mode - * initialized. For periodic transfers, the maximum packet - * size must also be initialized. This is modified on success. + * initialized. For periodic transfers, the maximum packet + * size must also be initialized. This is modified on + * success. + * @ep_comp: Endpoint companion descriptor, with the required + * number of streams. Will be modified when the chosen EP + * supports a different number of streams. * - * By choosing an endpoint to use with the specified descriptor, this - * routine simplifies writing gadget drivers that work with multiple - * USB device controllers. The endpoint would be passed later to - * usb_ep_enable(), along with some descriptor. + * This routine replaces the usb_ep_autoconfig when needed + * superspeed enhancments. If such enhancemnets are required, + * the FD should call usb_ep_autoconfig_ss directly and provide + * the additional ep_comp parameter. + * + * By choosing an endpoint to use with the specified descriptor, + * this routine simplifies writing gadget drivers that work with + * multiple USB device controllers. The endpoint would be + * passed later to usb_ep_enable(), along with some descriptor. * * That second descriptor won't always be the same as the first one. * For example, isochronous endpoints can be autoconfigured for high * bandwidth, and then used in several lower bandwidth altsettings. * Also, high and full speed descriptors will be different. * - * Be sure to examine and test the results of autoconfiguration on your - * hardware. This code may not make the best choices about how to use the - * USB controller, and it can't know all the restrictions that may apply. - * Some combinations of driver and hardware won't be able to autoconfigure. + * Be sure to examine and test the results of autoconfiguration + * on your hardware. This code may not make the best choices + * about how to use the USB controller, and it can't know all + * the restrictions that may apply. Some combinations of driver + * and hardware won't be able to autoconfigure. * * On success, this returns an un-claimed usb_ep, and modifies the endpoint * descriptor bEndpointAddress. For bulk endpoints, the wMaxPacket value - * is initialized as if the endpoint were used at full speed. To prevent - * the endpoint from being returned by a later autoconfig call, claim it - * by assigning ep->driver_data to some non-null value. + * is initialized as if the endpoint were used at full speed and + * the bmAttribute field in the ep companion descriptor is + * updated with the assigned number of streams if it is + * different from the original value. To prevent the endpoint + * from being returned by a later autoconfig call, claim it by + * assigning ep->driver_data to some non-null value. * * On failure, this returns a null endpoint descriptor. */ -struct usb_ep *usb_ep_autoconfig ( +struct usb_ep *usb_ep_autoconfig_ss( struct usb_gadget *gadget, - struct usb_endpoint_descriptor *desc + struct usb_endpoint_descriptor *desc, + struct usb_ss_ep_comp_descriptor *ep_comp ) { struct usb_ep *ep; @@ -252,23 +287,24 @@ struct usb_ep *usb_ep_autoconfig ( if (gadget_is_net2280 (gadget) && type == USB_ENDPOINT_XFER_INT) { /* ep-e, ep-f are PIO with only 64 byte fifos */ ep = find_ep (gadget, "ep-e"); - if (ep && ep_matches (gadget, ep, desc)) + if (ep && ep_matches(gadget, ep, desc, ep_comp)) return ep; ep = find_ep (gadget, "ep-f"); - if (ep && ep_matches (gadget, ep, desc)) + if (ep && ep_matches(gadget, ep, desc, ep_comp)) return ep; } else if (gadget_is_goku (gadget)) { if (USB_ENDPOINT_XFER_INT == type) { /* single buffering is enough */ - ep = find_ep (gadget, "ep3-bulk"); - if (ep && ep_matches (gadget, ep, desc)) + ep = find_ep(gadget, "ep3-bulk"); + if (ep && ep_matches(gadget, ep, desc, ep_comp)) return ep; } else if (USB_ENDPOINT_XFER_BULK == type && (USB_DIR_IN & desc->bEndpointAddress)) { /* DMA may be available */ - ep = find_ep (gadget, "ep2-bulk"); - if (ep && ep_matches (gadget, ep, desc)) + ep = find_ep(gadget, "ep2-bulk"); + if (ep && ep_matches(gadget, ep, desc, + ep_comp)) return ep; } @@ -287,14 +323,14 @@ struct usb_ep *usb_ep_autoconfig ( ep = find_ep(gadget, "ep2out"); } else ep = NULL; - if (ep && ep_matches (gadget, ep, desc)) + if (ep && ep_matches(gadget, ep, desc, ep_comp)) return ep; #endif } /* Second, look at endpoints until an unclaimed one looks usable */ list_for_each_entry (ep, &gadget->ep_list, ep_list) { - if (ep_matches (gadget, ep, desc)) + if (ep_matches(gadget, ep, desc, ep_comp)) return ep; } @@ -303,6 +339,46 @@ struct usb_ep *usb_ep_autoconfig ( } /** + * usb_ep_autoconfig() - choose an endpoint matching the + * descriptor + * @gadget: The device to which the endpoint must belong. + * @desc: Endpoint descriptor, with endpoint direction and transfer mode + * initialized. For periodic transfers, the maximum packet + * size must also be initialized. This is modified on success. + * + * By choosing an endpoint to use with the specified descriptor, this + * routine simplifies writing gadget drivers that work with multiple + * USB device controllers. The endpoint would be passed later to + * usb_ep_enable(), along with some descriptor. + * + * That second descriptor won't always be the same as the first one. + * For example, isochronous endpoints can be autoconfigured for high + * bandwidth, and then used in several lower bandwidth altsettings. + * Also, high and full speed descriptors will be different. + * + * Be sure to examine and test the results of autoconfiguration on your + * hardware. This code may not make the best choices about how to use the + * USB controller, and it can't know all the restrictions that may apply. + * Some combinations of driver and hardware won't be able to autoconfigure. + * + * On success, this returns an un-claimed usb_ep, and modifies the endpoint + * descriptor bEndpointAddress. For bulk endpoints, the wMaxPacket value + * is initialized as if the endpoint were used at full speed. To prevent + * the endpoint from being returned by a later autoconfig call, claim it + * by assigning ep->driver_data to some non-null value. + * + * On failure, this returns a null endpoint descriptor. + */ +struct usb_ep *usb_ep_autoconfig( + struct usb_gadget *gadget, + struct usb_endpoint_descriptor *desc +) +{ + return usb_ep_autoconfig_ss(gadget, desc, NULL); +} + + +/** * usb_ep_autoconfig_reset - reset endpoint autoconfig state * @gadget: device for which autoconfig state will be reset * diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index 1690c9d..aafc84f 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -401,6 +401,7 @@ static struct usb_composite_driver eth_driver = { .name = "g_ether", .dev = &device_desc, .strings = dev_strings, + .max_speed = USB_SPEED_SUPER, .unbind = __exit_p(eth_unbind), }; diff --git a/drivers/usb/gadget/f_acm.c b/drivers/usb/gadget/f_acm.c index bd6226c..3f88493 100644 --- a/drivers/usb/gadget/f_acm.c +++ b/drivers/usb/gadget/f_acm.c @@ -39,12 +39,6 @@ * descriptors (roughly equivalent to CDC Unions) may sometimes help. */ -struct acm_ep_descs { - struct usb_endpoint_descriptor *in; - struct usb_endpoint_descriptor *out; - struct usb_endpoint_descriptor *notify; -}; - struct f_acm { struct gserial port; u8 ctrl_id, data_id; @@ -58,11 +52,7 @@ struct f_acm { */ spinlock_t lock; - struct acm_ep_descs fs; - struct acm_ep_descs hs; - struct usb_ep *notify; - struct usb_endpoint_descriptor *notify_desc; struct usb_request *notify_req; struct usb_cdc_line_coding port_line_coding; /* 8-N-1 etc */ @@ -405,23 +395,27 @@ static int acm_set_alt(struct usb_function *f, unsigned intf, unsigned alt) usb_ep_disable(acm->notify); } else { VDBG(cdev, "init acm ctrl interface %d\n", intf); - acm->notify_desc = ep_choose(cdev->gadget, - acm->hs.notify, - acm->fs.notify); + if (config_ep_by_speed(cdev->gadget, f, acm->notify)) + return -EINVAL; } - usb_ep_enable(acm->notify, acm->notify_desc); + usb_ep_enable(acm->notify); acm->notify->driver_data = acm; } else if (intf == acm->data_id) { if (acm->port.in->driver_data) { DBG(cdev, "reset acm ttyGS%d\n", acm->port_num); gserial_disconnect(&acm->port); - } else { + } + if (!acm->port.in->desc || !acm->port.out->desc) { DBG(cdev, "activate acm ttyGS%d\n", acm->port_num); - acm->port.in_desc = ep_choose(cdev->gadget, - acm->hs.in, acm->fs.in); - acm->port.out_desc = ep_choose(cdev->gadget, - acm->hs.out, acm->fs.out); + if (config_ep_by_speed(cdev->gadget, f, + acm->port.in) || + config_ep_by_speed(cdev->gadget, f, + acm->port.out)) { + acm->port.in->desc = NULL; + acm->port.out->desc = NULL; + return -EINVAL; + } } gserial_connect(&acm->port, acm->port_num); @@ -629,18 +623,11 @@ acm_bind(struct usb_configuration *c, struct usb_function *f) acm->notify_req->complete = acm_cdc_notify_complete; acm->notify_req->context = acm; - /* copy descriptors, and track endpoint copies */ + /* copy descriptors */ f->descriptors = usb_copy_descriptors(acm_fs_function); if (!f->descriptors) goto fail; - acm->fs.in = usb_find_endpoint(acm_fs_function, - f->descriptors, &acm_fs_in_desc); - acm->fs.out = usb_find_endpoint(acm_fs_function, - f->descriptors, &acm_fs_out_desc); - acm->fs.notify = usb_find_endpoint(acm_fs_function, - f->descriptors, &acm_fs_notify_desc); - /* support all relevant hardware speeds... we expect that when * hardware is dual speed, all bulk-capable endpoints work at * both speeds @@ -653,15 +640,8 @@ acm_bind(struct usb_configuration *c, struct usb_function *f) acm_hs_notify_desc.bEndpointAddress = acm_fs_notify_desc.bEndpointAddress; - /* copy descriptors, and track endpoint copies */ + /* copy descriptors */ f->hs_descriptors = usb_copy_descriptors(acm_hs_function); - - acm->hs.in = usb_find_endpoint(acm_hs_function, - f->hs_descriptors, &acm_hs_in_desc); - acm->hs.out = usb_find_endpoint(acm_hs_function, - f->hs_descriptors, &acm_hs_out_desc); - acm->hs.notify = usb_find_endpoint(acm_hs_function, - f->hs_descriptors, &acm_hs_notify_desc); } DBG(cdev, "acm ttyGS%d: %s speed IN/%s OUT/%s NOTIFY/%s\n", diff --git a/drivers/usb/gadget/f_audio.c b/drivers/usb/gadget/f_audio.c index 8ee330a..02a0270 100644 --- a/drivers/usb/gadget/f_audio.c +++ b/drivers/usb/gadget/f_audio.c @@ -279,7 +279,6 @@ struct f_audio { /* endpoints handle full and/or high speeds */ struct usb_ep *out_ep; - struct usb_endpoint_descriptor *out_desc; spinlock_t lock; struct f_audio_buf *copy_buf; @@ -575,7 +574,7 @@ static int f_audio_set_alt(struct usb_function *f, unsigned intf, unsigned alt) if (intf == 1) { if (alt == 1) { - usb_ep_enable(out_ep, audio->out_desc); + usb_ep_enable(out_ep); out_ep->driver_data = audio; audio->copy_buf = f_audio_buffer_alloc(audio_buf_size); if (IS_ERR(audio->copy_buf)) @@ -677,6 +676,7 @@ f_audio_bind(struct usb_configuration *c, struct usb_function *f) if (!ep) goto fail; audio->out_ep = ep; + audio->out_ep->desc = &as_out_ep_desc; ep->driver_data = cdev; /* claim */ status = -ENOMEM; @@ -776,7 +776,6 @@ int __init audio_bind_config(struct usb_configuration *c) audio->card.func.set_alt = f_audio_set_alt; audio->card.func.setup = f_audio_setup; audio->card.func.disable = f_audio_disable; - audio->out_desc = &as_out_ep_desc; control_selector_init(audio); diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c index 544257a8..3691a0c 100644 --- a/drivers/usb/gadget/f_ecm.c +++ b/drivers/usb/gadget/f_ecm.c @@ -46,11 +46,6 @@ * and also means that a get_alt() method is required. */ -struct ecm_ep_descs { - struct usb_endpoint_descriptor *in; - struct usb_endpoint_descriptor *out; - struct usb_endpoint_descriptor *notify; -}; enum ecm_notify_state { ECM_NOTIFY_NONE, /* don't notify */ @@ -64,11 +59,7 @@ struct f_ecm { char ethaddr[14]; - struct ecm_ep_descs fs; - struct ecm_ep_descs hs; - struct usb_ep *notify; - struct usb_endpoint_descriptor *notify_desc; struct usb_request *notify_req; u8 notify_state; bool is_open; @@ -86,10 +77,12 @@ static inline struct f_ecm *func_to_ecm(struct usb_function *f) /* peak (theoretical) bulk transfer rate in bits-per-second */ static inline unsigned ecm_bitrate(struct usb_gadget *g) { - if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH) + if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER) + return 13 * 1024 * 8 * 1000 * 8; + else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH) return 13 * 512 * 8 * 1000 * 8; else - return 19 * 64 * 1 * 1000 * 8; + return 19 * 64 * 1 * 1000 * 8; } /*-------------------------------------------------------------------------*/ @@ -219,8 +212,10 @@ static struct usb_descriptor_header *ecm_fs_function[] = { (struct usb_descriptor_header *) &ecm_header_desc, (struct usb_descriptor_header *) &ecm_union_desc, (struct usb_descriptor_header *) &ecm_desc, + /* NOTE: status endpoint might need to be removed */ (struct usb_descriptor_header *) &fs_ecm_notify_desc, + /* data interface, altsettings 0 and 1 */ (struct usb_descriptor_header *) &ecm_data_nop_intf, (struct usb_descriptor_header *) &ecm_data_intf, @@ -240,6 +235,7 @@ static struct usb_endpoint_descriptor hs_ecm_notify_desc = { .wMaxPacketSize = cpu_to_le16(ECM_STATUS_BYTECOUNT), .bInterval = LOG2_STATUS_INTERVAL_MSEC + 4, }; + static struct usb_endpoint_descriptor hs_ecm_in_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -264,8 +260,10 @@ static struct usb_descriptor_header *ecm_hs_function[] = { (struct usb_descriptor_header *) &ecm_header_desc, (struct usb_descriptor_header *) &ecm_union_desc, (struct usb_descriptor_header *) &ecm_desc, + /* NOTE: status endpoint might need to be removed */ (struct usb_descriptor_header *) &hs_ecm_notify_desc, + /* data interface, altsettings 0 and 1 */ (struct usb_descriptor_header *) &ecm_data_nop_intf, (struct usb_descriptor_header *) &ecm_data_intf, @@ -274,6 +272,76 @@ static struct usb_descriptor_header *ecm_hs_function[] = { NULL, }; +/* super speed support: */ + +static struct usb_endpoint_descriptor ss_ecm_notify_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_INT, + .wMaxPacketSize = cpu_to_le16(ECM_STATUS_BYTECOUNT), + .bInterval = LOG2_STATUS_INTERVAL_MSEC + 4, +}; + +static struct usb_ss_ep_comp_descriptor ss_ecm_intr_comp_desc = { + .bLength = sizeof ss_ecm_intr_comp_desc, + .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + + /* the following 3 values can be tweaked if necessary */ + /* .bMaxBurst = 0, */ + /* .bmAttributes = 0, */ + .wBytesPerInterval = cpu_to_le16(ECM_STATUS_BYTECOUNT), +}; + +static struct usb_endpoint_descriptor ss_ecm_in_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = cpu_to_le16(1024), +}; + +static struct usb_endpoint_descriptor ss_ecm_out_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_OUT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = cpu_to_le16(1024), +}; + +static struct usb_ss_ep_comp_descriptor ss_ecm_bulk_comp_desc = { + .bLength = sizeof ss_ecm_bulk_comp_desc, + .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + + /* the following 2 values can be tweaked if necessary */ + /* .bMaxBurst = 0, */ + /* .bmAttributes = 0, */ +}; + +static struct usb_descriptor_header *ecm_ss_function[] = { + /* CDC ECM control descriptors */ + (struct usb_descriptor_header *) &ecm_control_intf, + (struct usb_descriptor_header *) &ecm_header_desc, + (struct usb_descriptor_header *) &ecm_union_desc, + (struct usb_descriptor_header *) &ecm_desc, + + /* NOTE: status endpoint might need to be removed */ + (struct usb_descriptor_header *) &ss_ecm_notify_desc, + (struct usb_descriptor_header *) &ss_ecm_intr_comp_desc, + + /* data interface, altsettings 0 and 1 */ + (struct usb_descriptor_header *) &ecm_data_nop_intf, + (struct usb_descriptor_header *) &ecm_data_intf, + (struct usb_descriptor_header *) &ss_ecm_in_desc, + (struct usb_descriptor_header *) &ss_ecm_bulk_comp_desc, + (struct usb_descriptor_header *) &ss_ecm_out_desc, + (struct usb_descriptor_header *) &ss_ecm_bulk_comp_desc, + NULL, +}; + /* string descriptors: */ static struct usb_string ecm_string_defs[] = { @@ -464,13 +532,13 @@ static int ecm_set_alt(struct usb_function *f, unsigned intf, unsigned alt) if (ecm->notify->driver_data) { VDBG(cdev, "reset ecm control %d\n", intf); usb_ep_disable(ecm->notify); - } else { + } + if (!(ecm->notify->desc)) { VDBG(cdev, "init ecm ctrl %d\n", intf); - ecm->notify_desc = ep_choose(cdev->gadget, - ecm->hs.notify, - ecm->fs.notify); + if (config_ep_by_speed(cdev->gadget, f, ecm->notify)) + goto fail; } - usb_ep_enable(ecm->notify, ecm->notify_desc); + usb_ep_enable(ecm->notify); ecm->notify->driver_data = ecm; /* Data interface has two altsettings, 0 and 1 */ @@ -483,12 +551,17 @@ static int ecm_set_alt(struct usb_function *f, unsigned intf, unsigned alt) gether_disconnect(&ecm->port); } - if (!ecm->port.in) { + if (!ecm->port.in_ep->desc || + !ecm->port.out_ep->desc) { DBG(cdev, "init ecm\n"); - ecm->port.in = ep_choose(cdev->gadget, - ecm->hs.in, ecm->fs.in); - ecm->port.out = ep_choose(cdev->gadget, - ecm->hs.out, ecm->fs.out); + if (config_ep_by_speed(cdev->gadget, f, + ecm->port.in_ep) || + config_ep_by_speed(cdev->gadget, f, + ecm->port.out_ep)) { + ecm->port.in_ep->desc = NULL; + ecm->port.out_ep->desc = NULL; + goto fail; + } } /* CDC Ethernet only sends data in non-default altsettings. @@ -549,7 +622,7 @@ static void ecm_disable(struct usb_function *f) if (ecm->notify->driver_data) { usb_ep_disable(ecm->notify); ecm->notify->driver_data = NULL; - ecm->notify_desc = NULL; + ecm->notify->desc = NULL; } } @@ -665,13 +738,6 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f) if (!f->descriptors) goto fail; - ecm->fs.in = usb_find_endpoint(ecm_fs_function, - f->descriptors, &fs_ecm_in_desc); - ecm->fs.out = usb_find_endpoint(ecm_fs_function, - f->descriptors, &fs_ecm_out_desc); - ecm->fs.notify = usb_find_endpoint(ecm_fs_function, - f->descriptors, &fs_ecm_notify_desc); - /* support all relevant hardware speeds... we expect that when * hardware is dual speed, all bulk-capable endpoints work at * both speeds @@ -688,13 +754,20 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f) f->hs_descriptors = usb_copy_descriptors(ecm_hs_function); if (!f->hs_descriptors) goto fail; + } - ecm->hs.in = usb_find_endpoint(ecm_hs_function, - f->hs_descriptors, &hs_ecm_in_desc); - ecm->hs.out = usb_find_endpoint(ecm_hs_function, - f->hs_descriptors, &hs_ecm_out_desc); - ecm->hs.notify = usb_find_endpoint(ecm_hs_function, - f->hs_descriptors, &hs_ecm_notify_desc); + if (gadget_is_superspeed(c->cdev->gadget)) { + ss_ecm_in_desc.bEndpointAddress = + fs_ecm_in_desc.bEndpointAddress; + ss_ecm_out_desc.bEndpointAddress = + fs_ecm_out_desc.bEndpointAddress; + ss_ecm_notify_desc.bEndpointAddress = + fs_ecm_notify_desc.bEndpointAddress; + + /* copy descriptors, and track endpoint copies */ + f->ss_descriptors = usb_copy_descriptors(ecm_ss_function); + if (!f->ss_descriptors) + goto fail; } /* NOTE: all that is done without knowing or caring about @@ -706,6 +779,7 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f) ecm->port.close = ecm_close; DBG(cdev, "CDC Ethernet: %s speed IN/%s OUT/%s NOTIFY/%s\n", + gadget_is_superspeed(c->cdev->gadget) ? "super" : gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", ecm->port.in_ep->name, ecm->port.out_ep->name, ecm->notify->name); @@ -714,6 +788,8 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f) fail: if (f->descriptors) usb_free_descriptors(f->descriptors); + if (f->hs_descriptors) + usb_free_descriptors(f->hs_descriptors); if (ecm->notify_req) { kfree(ecm->notify_req->buf); @@ -723,9 +799,9 @@ fail: /* we might as well release our claims on endpoints */ if (ecm->notify) ecm->notify->driver_data = NULL; - if (ecm->port.out) + if (ecm->port.out_ep->desc) ecm->port.out_ep->driver_data = NULL; - if (ecm->port.in) + if (ecm->port.in_ep->desc) ecm->port.in_ep->driver_data = NULL; ERROR(cdev, "%s: can't bind, err %d\n", f->name, status); @@ -740,6 +816,8 @@ ecm_unbind(struct usb_configuration *c, struct usb_function *f) DBG(c->cdev, "ecm unbind\n"); + if (gadget_is_superspeed(c->cdev->gadget)) + usb_free_descriptors(f->ss_descriptors); if (gadget_is_dualspeed(c->cdev->gadget)) usb_free_descriptors(f->hs_descriptors); usb_free_descriptors(f->descriptors); diff --git a/drivers/usb/gadget/f_eem.c b/drivers/usb/gadget/f_eem.c index b3c3042..046c6d0 100644 --- a/drivers/usb/gadget/f_eem.c +++ b/drivers/usb/gadget/f_eem.c @@ -35,17 +35,9 @@ * Ethernet link. */ -struct eem_ep_descs { - struct usb_endpoint_descriptor *in; - struct usb_endpoint_descriptor *out; -}; - struct f_eem { struct gether port; u8 ctrl_id; - - struct eem_ep_descs fs; - struct eem_ep_descs hs; }; static inline struct f_eem *func_to_eem(struct usb_function *f) @@ -123,6 +115,45 @@ static struct usb_descriptor_header *eem_hs_function[] __initdata = { NULL, }; +/* super speed support: */ + +static struct usb_endpoint_descriptor eem_ss_in_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = cpu_to_le16(1024), +}; + +static struct usb_endpoint_descriptor eem_ss_out_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_OUT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = cpu_to_le16(1024), +}; + +static struct usb_ss_ep_comp_descriptor eem_ss_bulk_comp_desc __initdata = { + .bLength = sizeof eem_ss_bulk_comp_desc, + .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + + /* the following 2 values can be tweaked if necessary */ + /* .bMaxBurst = 0, */ + /* .bmAttributes = 0, */ +}; + +static struct usb_descriptor_header *eem_ss_function[] __initdata = { + /* CDC EEM control descriptors */ + (struct usb_descriptor_header *) &eem_intf, + (struct usb_descriptor_header *) &eem_ss_in_desc, + (struct usb_descriptor_header *) &eem_ss_bulk_comp_desc, + (struct usb_descriptor_header *) &eem_ss_out_desc, + (struct usb_descriptor_header *) &eem_ss_bulk_comp_desc, + NULL, +}; + /* string descriptors: */ static struct usb_string eem_string_defs[] = { @@ -176,12 +207,16 @@ static int eem_set_alt(struct usb_function *f, unsigned intf, unsigned alt) gether_disconnect(&eem->port); } - if (!eem->port.in) { + if (!eem->port.in_ep->desc || !eem->port.out_ep->desc) { DBG(cdev, "init eem\n"); - eem->port.in = ep_choose(cdev->gadget, - eem->hs.in, eem->fs.in); - eem->port.out = ep_choose(cdev->gadget, - eem->hs.out, eem->fs.out); + if (config_ep_by_speed(cdev->gadget, f, + eem->port.in_ep) || + config_ep_by_speed(cdev->gadget, f, + eem->port.out_ep)) { + eem->port.in_ep->desc = NULL; + eem->port.out_ep->desc = NULL; + goto fail; + } } /* zlps should not occur because zero-length EEM packets @@ -253,11 +288,6 @@ eem_bind(struct usb_configuration *c, struct usb_function *f) if (!f->descriptors) goto fail; - eem->fs.in = usb_find_endpoint(eem_fs_function, - f->descriptors, &eem_fs_in_desc); - eem->fs.out = usb_find_endpoint(eem_fs_function, - f->descriptors, &eem_fs_out_desc); - /* support all relevant hardware speeds... we expect that when * hardware is dual speed, all bulk-capable endpoints work at * both speeds @@ -272,14 +302,22 @@ eem_bind(struct usb_configuration *c, struct usb_function *f) f->hs_descriptors = usb_copy_descriptors(eem_hs_function); if (!f->hs_descriptors) goto fail; + } + + if (gadget_is_superspeed(c->cdev->gadget)) { + eem_ss_in_desc.bEndpointAddress = + eem_fs_in_desc.bEndpointAddress; + eem_ss_out_desc.bEndpointAddress = + eem_fs_out_desc.bEndpointAddress; - eem->hs.in = usb_find_endpoint(eem_hs_function, - f->hs_descriptors, &eem_hs_in_desc); - eem->hs.out = usb_find_endpoint(eem_hs_function, - f->hs_descriptors, &eem_hs_out_desc); + /* copy descriptors, and track endpoint copies */ + f->ss_descriptors = usb_copy_descriptors(eem_ss_function); + if (!f->ss_descriptors) + goto fail; } DBG(cdev, "CDC Ethernet (EEM): %s speed IN/%s OUT/%s\n", + gadget_is_superspeed(c->cdev->gadget) ? "super" : gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", eem->port.in_ep->name, eem->port.out_ep->name); return 0; @@ -287,11 +325,13 @@ eem_bind(struct usb_configuration *c, struct usb_function *f) fail: if (f->descriptors) usb_free_descriptors(f->descriptors); + if (f->hs_descriptors) + usb_free_descriptors(f->hs_descriptors); /* we might as well release our claims on endpoints */ - if (eem->port.out) + if (eem->port.out_ep->desc) eem->port.out_ep->driver_data = NULL; - if (eem->port.in) + if (eem->port.in_ep->desc) eem->port.in_ep->driver_data = NULL; ERROR(cdev, "%s: can't bind, err %d\n", f->name, status); @@ -306,6 +346,8 @@ eem_unbind(struct usb_configuration *c, struct usb_function *f) DBG(c->cdev, "eem unbind\n"); + if (gadget_is_superspeed(c->cdev->gadget)) + usb_free_descriptors(f->ss_descriptors); if (gadget_is_dualspeed(c->cdev->gadget)) usb_free_descriptors(f->hs_descriptors); usb_free_descriptors(f->descriptors); diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 19fffcc..c161a9a 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -1544,7 +1544,8 @@ static int ffs_func_eps_enable(struct ffs_function *func) ds = ep->descs[ep->descs[1] ? 1 : 0]; ep->ep->driver_data = ep; - ret = usb_ep_enable(ep->ep, ds); + ep->ep->desc = ds; + ret = usb_ep_enable(ep->ep); if (likely(!ret)) { epfile->ep = ep; epfile->in = usb_endpoint_dir_in(ds); diff --git a/drivers/usb/gadget/f_hid.c b/drivers/usb/gadget/f_hid.c index 598e7e2..403a48b 100644 --- a/drivers/usb/gadget/f_hid.c +++ b/drivers/usb/gadget/f_hid.c @@ -59,8 +59,6 @@ struct f_hidg { struct cdev cdev; struct usb_function func; struct usb_ep *in_ep; - struct usb_endpoint_descriptor *fs_in_ep_desc; - struct usb_endpoint_descriptor *hs_in_ep_desc; }; static inline struct f_hidg *func_to_hidg(struct usb_function *f) @@ -416,7 +414,6 @@ static int hidg_set_alt(struct usb_function *f, unsigned intf, unsigned alt) { struct usb_composite_dev *cdev = f->config->cdev; struct f_hidg *hidg = func_to_hidg(f); - const struct usb_endpoint_descriptor *ep_desc; int status = 0; VDBG(cdev, "hidg_set_alt intf:%d alt:%d\n", intf, alt); @@ -426,9 +423,13 @@ static int hidg_set_alt(struct usb_function *f, unsigned intf, unsigned alt) if (hidg->in_ep->driver_data != NULL) usb_ep_disable(hidg->in_ep); - ep_desc = ep_choose(f->config->cdev->gadget, - hidg->hs_in_ep_desc, hidg->fs_in_ep_desc); - status = usb_ep_enable(hidg->in_ep, ep_desc); + status = config_ep_by_speed(f->config->cdev->gadget, f, + hidg->in_ep); + if (status) { + ERROR(cdev, "config_ep_by_speed FAILED!\n"); + goto fail; + } + status = usb_ep_enable(hidg->in_ep); if (status < 0) { ERROR(cdev, "Enable endpoint FAILED!\n"); goto fail; @@ -498,21 +499,12 @@ static int __init hidg_bind(struct usb_configuration *c, struct usb_function *f) if (!f->descriptors) goto fail; - hidg->fs_in_ep_desc = usb_find_endpoint(hidg_fs_descriptors, - f->descriptors, - &hidg_fs_in_ep_desc); - if (gadget_is_dualspeed(c->cdev->gadget)) { hidg_hs_in_ep_desc.bEndpointAddress = hidg_fs_in_ep_desc.bEndpointAddress; f->hs_descriptors = usb_copy_descriptors(hidg_hs_descriptors); if (!f->hs_descriptors) goto fail; - hidg->hs_in_ep_desc = usb_find_endpoint(hidg_hs_descriptors, - f->hs_descriptors, - &hidg_hs_in_ep_desc); - } else { - hidg->hs_in_ep_desc = NULL; } mutex_init(&hidg->lock); diff --git a/drivers/usb/gadget/f_loopback.c b/drivers/usb/gadget/f_loopback.c index b37960f..ca660d4 100644 --- a/drivers/usb/gadget/f_loopback.c +++ b/drivers/usb/gadget/f_loopback.c @@ -118,6 +118,49 @@ static struct usb_descriptor_header *hs_loopback_descs[] = { NULL, }; +/* super speed support: */ + +static struct usb_endpoint_descriptor ss_loop_source_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = cpu_to_le16(1024), +}; + +struct usb_ss_ep_comp_descriptor ss_loop_source_comp_desc = { + .bLength = USB_DT_SS_EP_COMP_SIZE, + .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + .bMaxBurst = 0, + .bmAttributes = 0, + .wBytesPerInterval = 0, +}; + +static struct usb_endpoint_descriptor ss_loop_sink_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = cpu_to_le16(1024), +}; + +struct usb_ss_ep_comp_descriptor ss_loop_sink_comp_desc = { + .bLength = USB_DT_SS_EP_COMP_SIZE, + .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + .bMaxBurst = 0, + .bmAttributes = 0, + .wBytesPerInterval = 0, +}; + +static struct usb_descriptor_header *ss_loopback_descs[] = { + (struct usb_descriptor_header *) &loopback_intf, + (struct usb_descriptor_header *) &ss_loop_source_desc, + (struct usb_descriptor_header *) &ss_loop_source_comp_desc, + (struct usb_descriptor_header *) &ss_loop_sink_desc, + (struct usb_descriptor_header *) &ss_loop_sink_comp_desc, + NULL, +}; + /* function-specific strings: */ static struct usb_string strings_loopback[] = { @@ -175,8 +218,18 @@ autoconf_fail: f->hs_descriptors = hs_loopback_descs; } + /* support super speed hardware */ + if (gadget_is_superspeed(c->cdev->gadget)) { + ss_loop_source_desc.bEndpointAddress = + fs_loop_source_desc.bEndpointAddress; + ss_loop_sink_desc.bEndpointAddress = + fs_loop_sink_desc.bEndpointAddress; + f->ss_descriptors = ss_loopback_descs; + } + DBG(cdev, "%s speed %s: IN/%s, OUT/%s\n", - gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", + (gadget_is_superspeed(c->cdev->gadget) ? "super" : + (gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full")), f->name, loop->in_ep->name, loop->out_ep->name); return 0; } @@ -250,26 +303,27 @@ static int enable_loopback(struct usb_composite_dev *cdev, struct f_loopback *loop) { int result = 0; - const struct usb_endpoint_descriptor *src, *sink; struct usb_ep *ep; struct usb_request *req; unsigned i; - src = ep_choose(cdev->gadget, - &hs_loop_source_desc, &fs_loop_source_desc); - sink = ep_choose(cdev->gadget, - &hs_loop_sink_desc, &fs_loop_sink_desc); - /* one endpoint writes data back IN to the host */ ep = loop->in_ep; - result = usb_ep_enable(ep, src); + result = config_ep_by_speed(cdev->gadget, &(loop->function), ep); + if (result) + return result; + result = usb_ep_enable(ep); if (result < 0) return result; ep->driver_data = loop; /* one endpoint just reads OUT packets */ ep = loop->out_ep; - result = usb_ep_enable(ep, sink); + result = config_ep_by_speed(cdev->gadget, &(loop->function), ep); + if (result) + goto fail0; + + result = usb_ep_enable(ep); if (result < 0) { fail0: ep = loop->in_ep; diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index efb58f9..5b93395 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -2324,18 +2324,6 @@ static int get_next_command(struct fsg_common *common) /*-------------------------------------------------------------------------*/ -static int enable_endpoint(struct fsg_common *common, struct usb_ep *ep, - const struct usb_endpoint_descriptor *d) -{ - int rc; - - ep->driver_data = common; - rc = usb_ep_enable(ep, d); - if (rc) - ERROR(common, "can't enable %s, result %d\n", ep->name, rc); - return rc; -} - static int alloc_request(struct fsg_common *common, struct usb_ep *ep, struct usb_request **preq) { @@ -2349,7 +2337,6 @@ static int alloc_request(struct fsg_common *common, struct usb_ep *ep, /* Reset interface setting and re-init endpoint state (toggle etc). */ static int do_set_interface(struct fsg_common *common, struct fsg_dev *new_fsg) { - const struct usb_endpoint_descriptor *d; struct fsg_dev *fsg; int i, rc = 0; @@ -2396,20 +2383,26 @@ reset: fsg = common->fsg; /* Enable the endpoints */ - d = fsg_ep_desc(common->gadget, - &fsg_fs_bulk_in_desc, &fsg_hs_bulk_in_desc); - rc = enable_endpoint(common, fsg->bulk_in, d); + rc = config_ep_by_speed(common->gadget, &(fsg->function), fsg->bulk_in); + if (rc) + goto reset; + rc = usb_ep_enable(fsg->bulk_in); if (rc) goto reset; + fsg->bulk_in->driver_data = common; fsg->bulk_in_enabled = 1; - d = fsg_ep_desc(common->gadget, - &fsg_fs_bulk_out_desc, &fsg_hs_bulk_out_desc); - rc = enable_endpoint(common, fsg->bulk_out, d); + rc = config_ep_by_speed(common->gadget, &(fsg->function), + fsg->bulk_out); + if (rc) + goto reset; + rc = usb_ep_enable(fsg->bulk_out); if (rc) goto reset; + fsg->bulk_out->driver_data = common; fsg->bulk_out_enabled = 1; - common->bulk_out_maxpacket = le16_to_cpu(d->wMaxPacketSize); + common->bulk_out_maxpacket = + le16_to_cpu(fsg->bulk_out->desc->wMaxPacketSize); clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags); /* Allocate the requests */ diff --git a/drivers/usb/gadget/f_ncm.c b/drivers/usb/gadget/f_ncm.c index 86902a6..ae69ed7 100644 --- a/drivers/usb/gadget/f_ncm.c +++ b/drivers/usb/gadget/f_ncm.c @@ -48,12 +48,6 @@ #define NCM_NDP_HDR_CRC 0x01000000 #define NCM_NDP_HDR_NOCRC 0x00000000 -struct ncm_ep_descs { - struct usb_endpoint_descriptor *in; - struct usb_endpoint_descriptor *out; - struct usb_endpoint_descriptor *notify; -}; - enum ncm_notify_state { NCM_NOTIFY_NONE, /* don't notify */ NCM_NOTIFY_CONNECT, /* issue CONNECT next */ @@ -66,11 +60,7 @@ struct f_ncm { char ethaddr[14]; - struct ncm_ep_descs fs; - struct ncm_ep_descs hs; - struct usb_ep *notify; - struct usb_endpoint_descriptor *notify_desc; struct usb_request *notify_req; u8 notify_state; bool is_open; @@ -802,13 +792,14 @@ static int ncm_set_alt(struct usb_function *f, unsigned intf, unsigned alt) if (ncm->notify->driver_data) { DBG(cdev, "reset ncm control %d\n", intf); usb_ep_disable(ncm->notify); - } else { + } + + if (!(ncm->notify->desc)) { DBG(cdev, "init ncm ctrl %d\n", intf); - ncm->notify_desc = ep_choose(cdev->gadget, - ncm->hs.notify, - ncm->fs.notify); + if (config_ep_by_speed(cdev->gadget, f, ncm->notify)) + goto fail; } - usb_ep_enable(ncm->notify, ncm->notify_desc); + usb_ep_enable(ncm->notify); ncm->notify->driver_data = ncm; /* Data interface has two altsettings, 0 and 1 */ @@ -829,14 +820,17 @@ static int ncm_set_alt(struct usb_function *f, unsigned intf, unsigned alt) if (alt == 1) { struct net_device *net; - if (!ncm->port.in) { + if (!ncm->port.in_ep->desc || + !ncm->port.out_ep->desc) { DBG(cdev, "init ncm\n"); - ncm->port.in = ep_choose(cdev->gadget, - ncm->hs.in, - ncm->fs.in); - ncm->port.out = ep_choose(cdev->gadget, - ncm->hs.out, - ncm->fs.out); + if (config_ep_by_speed(cdev->gadget, f, + ncm->port.in_ep) || + config_ep_by_speed(cdev->gadget, f, + ncm->port.out_ep)) { + ncm->port.in_ep->desc = NULL; + ncm->port.out_ep->desc = NULL; + goto fail; + } } /* TODO */ @@ -1111,7 +1105,7 @@ static void ncm_disable(struct usb_function *f) if (ncm->notify->driver_data) { usb_ep_disable(ncm->notify); ncm->notify->driver_data = NULL; - ncm->notify_desc = NULL; + ncm->notify->desc = NULL; } } @@ -1228,13 +1222,6 @@ ncm_bind(struct usb_configuration *c, struct usb_function *f) if (!f->descriptors) goto fail; - ncm->fs.in = usb_find_endpoint(ncm_fs_function, - f->descriptors, &fs_ncm_in_desc); - ncm->fs.out = usb_find_endpoint(ncm_fs_function, - f->descriptors, &fs_ncm_out_desc); - ncm->fs.notify = usb_find_endpoint(ncm_fs_function, - f->descriptors, &fs_ncm_notify_desc); - /* * support all relevant hardware speeds... we expect that when * hardware is dual speed, all bulk-capable endpoints work at @@ -1252,13 +1239,6 @@ ncm_bind(struct usb_configuration *c, struct usb_function *f) f->hs_descriptors = usb_copy_descriptors(ncm_hs_function); if (!f->hs_descriptors) goto fail; - - ncm->hs.in = usb_find_endpoint(ncm_hs_function, - f->hs_descriptors, &hs_ncm_in_desc); - ncm->hs.out = usb_find_endpoint(ncm_hs_function, - f->hs_descriptors, &hs_ncm_out_desc); - ncm->hs.notify = usb_find_endpoint(ncm_hs_function, - f->hs_descriptors, &hs_ncm_notify_desc); } /* @@ -1288,9 +1268,9 @@ fail: /* we might as well release our claims on endpoints */ if (ncm->notify) ncm->notify->driver_data = NULL; - if (ncm->port.out) + if (ncm->port.out_ep->desc) ncm->port.out_ep->driver_data = NULL; - if (ncm->port.in) + if (ncm->port.in_ep->desc) ncm->port.in_ep->driver_data = NULL; ERROR(cdev, "%s: can't bind, err %d\n", f->name, status); diff --git a/drivers/usb/gadget/f_obex.c b/drivers/usb/gadget/f_obex.c index 8f8c643..394502a 100644 --- a/drivers/usb/gadget/f_obex.c +++ b/drivers/usb/gadget/f_obex.c @@ -39,20 +39,12 @@ * ready to handle the commands. */ -struct obex_ep_descs { - struct usb_endpoint_descriptor *obex_in; - struct usb_endpoint_descriptor *obex_out; -}; - struct f_obex { struct gserial port; u8 ctrl_id; u8 data_id; u8 port_num; u8 can_activate; - - struct obex_ep_descs fs; - struct obex_ep_descs hs; }; static inline struct f_obex *func_to_obex(struct usb_function *f) @@ -227,12 +219,16 @@ static int obex_set_alt(struct usb_function *f, unsigned intf, unsigned alt) gserial_disconnect(&obex->port); } - if (!obex->port.in_desc) { + if (!obex->port.in->desc || !obex->port.out->desc) { DBG(cdev, "init obex ttyGS%d\n", obex->port_num); - obex->port.in_desc = ep_choose(cdev->gadget, - obex->hs.obex_in, obex->fs.obex_in); - obex->port.out_desc = ep_choose(cdev->gadget, - obex->hs.obex_out, obex->fs.obex_out); + if (config_ep_by_speed(cdev->gadget, f, + obex->port.in) || + config_ep_by_speed(cdev->gadget, f, + obex->port.out)) { + obex->port.out->desc = NULL; + obex->port.in->desc = NULL; + goto fail; + } } if (alt == 1) { @@ -346,11 +342,6 @@ obex_bind(struct usb_configuration *c, struct usb_function *f) /* copy descriptors, and track endpoint copies */ f->descriptors = usb_copy_descriptors(fs_function); - obex->fs.obex_in = usb_find_endpoint(fs_function, - f->descriptors, &obex_fs_ep_in_desc); - obex->fs.obex_out = usb_find_endpoint(fs_function, - f->descriptors, &obex_fs_ep_out_desc); - /* support all relevant hardware speeds... we expect that when * hardware is dual speed, all bulk-capable endpoints work at * both speeds @@ -364,11 +355,6 @@ obex_bind(struct usb_configuration *c, struct usb_function *f) /* copy descriptors, and track endpoint copies */ f->hs_descriptors = usb_copy_descriptors(hs_function); - - obex->hs.obex_in = usb_find_endpoint(hs_function, - f->hs_descriptors, &obex_hs_ep_in_desc); - obex->hs.obex_out = usb_find_endpoint(hs_function, - f->hs_descriptors, &obex_hs_ep_out_desc); } /* Avoid letting this gadget enumerate until the userspace diff --git a/drivers/usb/gadget/f_phonet.c b/drivers/usb/gadget/f_phonet.c index f22fc68..8f8d3f6 100644 --- a/drivers/usb/gadget/f_phonet.c +++ b/drivers/usb/gadget/f_phonet.c @@ -428,17 +428,16 @@ static int pn_set_alt(struct usb_function *f, unsigned intf, unsigned alt) spin_lock(&port->lock); __pn_reset(f); if (alt == 1) { - struct usb_endpoint_descriptor *out, *in; int i; - out = ep_choose(gadget, - &pn_hs_sink_desc, - &pn_fs_sink_desc); - in = ep_choose(gadget, - &pn_hs_source_desc, - &pn_fs_source_desc); - usb_ep_enable(fp->out_ep, out); - usb_ep_enable(fp->in_ep, in); + if (config_ep_by_speed(gadget, f, fp->in_ep) || + config_ep_by_speed(gadget, f, fp->out_ep)) { + fp->in_ep->desc = NULL; + fp->out_ep->desc = NULL; + return -EINVAL; + } + usb_ep_enable(fp->out_ep); + usb_ep_enable(fp->in_ep); port->usb = fp; fp->out_ep->driver_data = fp; diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index fa12ec8..8f3eae9 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -76,23 +76,13 @@ * - MS-Windows drivers sometimes emit undocumented requests. */ -struct rndis_ep_descs { - struct usb_endpoint_descriptor *in; - struct usb_endpoint_descriptor *out; - struct usb_endpoint_descriptor *notify; -}; - struct f_rndis { struct gether port; u8 ctrl_id, data_id; u8 ethaddr[ETH_ALEN]; int config; - struct rndis_ep_descs fs; - struct rndis_ep_descs hs; - struct usb_ep *notify; - struct usb_endpoint_descriptor *notify_desc; struct usb_request *notify_req; atomic_t notify_count; }; @@ -105,10 +95,12 @@ static inline struct f_rndis *func_to_rndis(struct usb_function *f) /* peak (theoretical) bulk transfer rate in bits-per-second */ static unsigned int bitrate(struct usb_gadget *g) { - if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH) + if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER) + return 13 * 1024 * 8 * 1000 * 8; + else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH) return 13 * 512 * 8 * 1000 * 8; else - return 19 * 64 * 1 * 1000 * 8; + return 19 * 64 * 1 * 1000 * 8; } /*-------------------------------------------------------------------------*/ @@ -226,6 +218,7 @@ static struct usb_endpoint_descriptor fs_out_desc = { static struct usb_descriptor_header *eth_fs_function[] = { (struct usb_descriptor_header *) &rndis_iad_descriptor, + /* control interface matches ACM, not Ethernet */ (struct usb_descriptor_header *) &rndis_control_intf, (struct usb_descriptor_header *) &header_desc, @@ -233,6 +226,7 @@ static struct usb_descriptor_header *eth_fs_function[] = { (struct usb_descriptor_header *) &rndis_acm_descriptor, (struct usb_descriptor_header *) &rndis_union_desc, (struct usb_descriptor_header *) &fs_notify_desc, + /* data interface has no altsetting */ (struct usb_descriptor_header *) &rndis_data_intf, (struct usb_descriptor_header *) &fs_in_desc, @@ -251,6 +245,7 @@ static struct usb_endpoint_descriptor hs_notify_desc = { .wMaxPacketSize = cpu_to_le16(STATUS_BYTECOUNT), .bInterval = LOG2_STATUS_INTERVAL_MSEC + 4, }; + static struct usb_endpoint_descriptor hs_in_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -271,6 +266,7 @@ static struct usb_endpoint_descriptor hs_out_desc = { static struct usb_descriptor_header *eth_hs_function[] = { (struct usb_descriptor_header *) &rndis_iad_descriptor, + /* control interface matches ACM, not Ethernet */ (struct usb_descriptor_header *) &rndis_control_intf, (struct usb_descriptor_header *) &header_desc, @@ -278,6 +274,7 @@ static struct usb_descriptor_header *eth_hs_function[] = { (struct usb_descriptor_header *) &rndis_acm_descriptor, (struct usb_descriptor_header *) &rndis_union_desc, (struct usb_descriptor_header *) &hs_notify_desc, + /* data interface has no altsetting */ (struct usb_descriptor_header *) &rndis_data_intf, (struct usb_descriptor_header *) &hs_in_desc, @@ -285,6 +282,76 @@ static struct usb_descriptor_header *eth_hs_function[] = { NULL, }; +/* super speed support: */ + +static struct usb_endpoint_descriptor ss_notify_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_INT, + .wMaxPacketSize = cpu_to_le16(STATUS_BYTECOUNT), + .bInterval = LOG2_STATUS_INTERVAL_MSEC + 4, +}; + +static struct usb_ss_ep_comp_descriptor ss_intr_comp_desc = { + .bLength = sizeof ss_intr_comp_desc, + .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + + /* the following 3 values can be tweaked if necessary */ + /* .bMaxBurst = 0, */ + /* .bmAttributes = 0, */ + .wBytesPerInterval = cpu_to_le16(STATUS_BYTECOUNT), +}; + +static struct usb_endpoint_descriptor ss_in_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = cpu_to_le16(1024), +}; + +static struct usb_endpoint_descriptor ss_out_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_OUT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = cpu_to_le16(1024), +}; + +static struct usb_ss_ep_comp_descriptor ss_bulk_comp_desc = { + .bLength = sizeof ss_bulk_comp_desc, + .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + + /* the following 2 values can be tweaked if necessary */ + /* .bMaxBurst = 0, */ + /* .bmAttributes = 0, */ +}; + +static struct usb_descriptor_header *eth_ss_function[] = { + (struct usb_descriptor_header *) &rndis_iad_descriptor, + + /* control interface matches ACM, not Ethernet */ + (struct usb_descriptor_header *) &rndis_control_intf, + (struct usb_descriptor_header *) &header_desc, + (struct usb_descriptor_header *) &call_mgmt_descriptor, + (struct usb_descriptor_header *) &rndis_acm_descriptor, + (struct usb_descriptor_header *) &rndis_union_desc, + (struct usb_descriptor_header *) &ss_notify_desc, + (struct usb_descriptor_header *) &ss_intr_comp_desc, + + /* data interface has no altsetting */ + (struct usb_descriptor_header *) &rndis_data_intf, + (struct usb_descriptor_header *) &ss_in_desc, + (struct usb_descriptor_header *) &ss_bulk_comp_desc, + (struct usb_descriptor_header *) &ss_out_desc, + (struct usb_descriptor_header *) &ss_bulk_comp_desc, + NULL, +}; + /* string descriptors: */ static struct usb_string rndis_string_defs[] = { @@ -484,13 +551,13 @@ static int rndis_set_alt(struct usb_function *f, unsigned intf, unsigned alt) if (rndis->notify->driver_data) { VDBG(cdev, "reset rndis control %d\n", intf); usb_ep_disable(rndis->notify); - } else { + } + if (!rndis->notify->desc) { VDBG(cdev, "init rndis ctrl %d\n", intf); - rndis->notify_desc = ep_choose(cdev->gadget, - rndis->hs.notify, - rndis->fs.notify); + if (config_ep_by_speed(cdev->gadget, f, rndis->notify)) + goto fail; } - usb_ep_enable(rndis->notify, rndis->notify_desc); + usb_ep_enable(rndis->notify); rndis->notify->driver_data = rndis; } else if (intf == rndis->data_id) { @@ -501,12 +568,16 @@ static int rndis_set_alt(struct usb_function *f, unsigned intf, unsigned alt) gether_disconnect(&rndis->port); } - if (!rndis->port.in) { + if (!rndis->port.in_ep->desc || !rndis->port.out_ep->desc) { DBG(cdev, "init rndis\n"); - rndis->port.in = ep_choose(cdev->gadget, - rndis->hs.in, rndis->fs.in); - rndis->port.out = ep_choose(cdev->gadget, - rndis->hs.out, rndis->fs.out); + if (config_ep_by_speed(cdev->gadget, f, + rndis->port.in_ep) || + config_ep_by_speed(cdev->gadget, f, + rndis->port.out_ep)) { + rndis->port.in_ep->desc = NULL; + rndis->port.out_ep->desc = NULL; + goto fail; + } } /* Avoid ZLPs; they can be troublesome. */ @@ -662,13 +733,6 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f) if (!f->descriptors) goto fail; - rndis->fs.in = usb_find_endpoint(eth_fs_function, - f->descriptors, &fs_in_desc); - rndis->fs.out = usb_find_endpoint(eth_fs_function, - f->descriptors, &fs_out_desc); - rndis->fs.notify = usb_find_endpoint(eth_fs_function, - f->descriptors, &fs_notify_desc); - /* support all relevant hardware speeds... we expect that when * hardware is dual speed, all bulk-capable endpoints work at * both speeds @@ -683,16 +747,22 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f) /* copy descriptors, and track endpoint copies */ f->hs_descriptors = usb_copy_descriptors(eth_hs_function); - if (!f->hs_descriptors) goto fail; + } - rndis->hs.in = usb_find_endpoint(eth_hs_function, - f->hs_descriptors, &hs_in_desc); - rndis->hs.out = usb_find_endpoint(eth_hs_function, - f->hs_descriptors, &hs_out_desc); - rndis->hs.notify = usb_find_endpoint(eth_hs_function, - f->hs_descriptors, &hs_notify_desc); + if (gadget_is_superspeed(c->cdev->gadget)) { + ss_in_desc.bEndpointAddress = + fs_in_desc.bEndpointAddress; + ss_out_desc.bEndpointAddress = + fs_out_desc.bEndpointAddress; + ss_notify_desc.bEndpointAddress = + fs_notify_desc.bEndpointAddress; + + /* copy descriptors, and track endpoint copies */ + f->ss_descriptors = usb_copy_descriptors(eth_ss_function); + if (!f->ss_descriptors) + goto fail; } rndis->port.open = rndis_open; @@ -719,12 +789,15 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f) */ DBG(cdev, "RNDIS: %s speed IN/%s OUT/%s NOTIFY/%s\n", + gadget_is_superspeed(c->cdev->gadget) ? "super" : gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", rndis->port.in_ep->name, rndis->port.out_ep->name, rndis->notify->name); return 0; fail: + if (gadget_is_superspeed(c->cdev->gadget) && f->ss_descriptors) + usb_free_descriptors(f->ss_descriptors); if (gadget_is_dualspeed(c->cdev->gadget) && f->hs_descriptors) usb_free_descriptors(f->hs_descriptors); if (f->descriptors) @@ -738,9 +811,9 @@ fail: /* we might as well release our claims on endpoints */ if (rndis->notify) rndis->notify->driver_data = NULL; - if (rndis->port.out) + if (rndis->port.out_ep->desc) rndis->port.out_ep->driver_data = NULL; - if (rndis->port.in) + if (rndis->port.in_ep->desc) rndis->port.in_ep->driver_data = NULL; ERROR(cdev, "%s: can't bind, err %d\n", f->name, status); @@ -756,6 +829,8 @@ rndis_unbind(struct usb_configuration *c, struct usb_function *f) rndis_deregister(rndis->config); rndis_exit(); + if (gadget_is_superspeed(c->cdev->gadget)) + usb_free_descriptors(f->ss_descriptors); if (gadget_is_dualspeed(c->cdev->gadget)) usb_free_descriptors(f->hs_descriptors); usb_free_descriptors(f->descriptors); diff --git a/drivers/usb/gadget/f_serial.c b/drivers/usb/gadget/f_serial.c index 490b00b..91fdf79 100644 --- a/drivers/usb/gadget/f_serial.c +++ b/drivers/usb/gadget/f_serial.c @@ -27,18 +27,10 @@ * if you can arrange appropriate host side drivers. */ -struct gser_descs { - struct usb_endpoint_descriptor *in; - struct usb_endpoint_descriptor *out; -}; - struct f_gser { struct gserial port; u8 data_id; u8 port_num; - - struct gser_descs fs; - struct gser_descs hs; }; static inline struct f_gser *func_to_gser(struct usb_function *f) @@ -136,12 +128,15 @@ static int gser_set_alt(struct usb_function *f, unsigned intf, unsigned alt) if (gser->port.in->driver_data) { DBG(cdev, "reset generic ttyGS%d\n", gser->port_num); gserial_disconnect(&gser->port); - } else { + } + if (!gser->port.in->desc || !gser->port.out->desc) { DBG(cdev, "activate generic ttyGS%d\n", gser->port_num); - gser->port.in_desc = ep_choose(cdev->gadget, - gser->hs.in, gser->fs.in); - gser->port.out_desc = ep_choose(cdev->gadget, - gser->hs.out, gser->fs.out); + if (!config_ep_by_speed(cdev->gadget, f, gser->port.in) || + !config_ep_by_speed(cdev->gadget, f, gser->port.out)) { + gser->port.in->desc = NULL; + gser->port.out->desc = NULL; + return -EINVAL; + } } gserial_connect(&gser->port, gser->port_num); return 0; @@ -193,12 +188,6 @@ gser_bind(struct usb_configuration *c, struct usb_function *f) /* copy descriptors, and track endpoint copies */ f->descriptors = usb_copy_descriptors(gser_fs_function); - gser->fs.in = usb_find_endpoint(gser_fs_function, - f->descriptors, &gser_fs_in_desc); - gser->fs.out = usb_find_endpoint(gser_fs_function, - f->descriptors, &gser_fs_out_desc); - - /* support all relevant hardware speeds... we expect that when * hardware is dual speed, all bulk-capable endpoints work at * both speeds @@ -211,11 +200,6 @@ gser_bind(struct usb_configuration *c, struct usb_function *f) /* copy descriptors, and track endpoint copies */ f->hs_descriptors = usb_copy_descriptors(gser_hs_function); - - gser->hs.in = usb_find_endpoint(gser_hs_function, - f->hs_descriptors, &gser_hs_in_desc); - gser->hs.out = usb_find_endpoint(gser_hs_function, - f->hs_descriptors, &gser_hs_out_desc); } DBG(cdev, "generic ttyGS%d: %s speed IN/%s OUT/%s\n", diff --git a/drivers/usb/gadget/f_sourcesink.c b/drivers/usb/gadget/f_sourcesink.c index e403a53..e18b4f5 100644 --- a/drivers/usb/gadget/f_sourcesink.c +++ b/drivers/usb/gadget/f_sourcesink.c @@ -131,6 +131,49 @@ static struct usb_descriptor_header *hs_source_sink_descs[] = { NULL, }; +/* super speed support: */ + +static struct usb_endpoint_descriptor ss_source_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = cpu_to_le16(1024), +}; + +struct usb_ss_ep_comp_descriptor ss_source_comp_desc = { + .bLength = USB_DT_SS_EP_COMP_SIZE, + .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + .bMaxBurst = 0, + .bmAttributes = 0, + .wBytesPerInterval = 0, +}; + +static struct usb_endpoint_descriptor ss_sink_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = cpu_to_le16(1024), +}; + +struct usb_ss_ep_comp_descriptor ss_sink_comp_desc = { + .bLength = USB_DT_SS_EP_COMP_SIZE, + .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + .bMaxBurst = 0, + .bmAttributes = 0, + .wBytesPerInterval = 0, +}; + +static struct usb_descriptor_header *ss_source_sink_descs[] = { + (struct usb_descriptor_header *) &source_sink_intf, + (struct usb_descriptor_header *) &ss_source_desc, + (struct usb_descriptor_header *) &ss_source_comp_desc, + (struct usb_descriptor_header *) &ss_sink_desc, + (struct usb_descriptor_header *) &ss_sink_comp_desc, + NULL, +}; + /* function-specific strings: */ static struct usb_string strings_sourcesink[] = { @@ -187,8 +230,18 @@ autoconf_fail: f->hs_descriptors = hs_source_sink_descs; } + /* support super speed hardware */ + if (gadget_is_superspeed(c->cdev->gadget)) { + ss_source_desc.bEndpointAddress = + fs_source_desc.bEndpointAddress; + ss_sink_desc.bEndpointAddress = + fs_sink_desc.bEndpointAddress; + f->ss_descriptors = ss_source_sink_descs; + } + DBG(cdev, "%s speed %s: IN/%s, OUT/%s\n", - gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", + (gadget_is_superspeed(c->cdev->gadget) ? "super" : + (gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full")), f->name, ss->in_ep->name, ss->out_ep->name); return 0; } @@ -343,15 +396,14 @@ static int enable_source_sink(struct usb_composite_dev *cdev, struct f_sourcesink *ss) { int result = 0; - const struct usb_endpoint_descriptor *src, *sink; struct usb_ep *ep; - src = ep_choose(cdev->gadget, &hs_source_desc, &fs_source_desc); - sink = ep_choose(cdev->gadget, &hs_sink_desc, &fs_sink_desc); - /* one endpoint writes (sources) zeroes IN (to the host) */ ep = ss->in_ep; - result = usb_ep_enable(ep, src); + result = config_ep_by_speed(cdev->gadget, &(ss->function), ep); + if (result) + return result; + result = usb_ep_enable(ep); if (result < 0) return result; ep->driver_data = ss; @@ -367,7 +419,10 @@ fail: /* one endpoint reads (sinks) anything OUT (from the host) */ ep = ss->out_ep; - result = usb_ep_enable(ep, sink); + result = config_ep_by_speed(cdev->gadget, &(ss->function), ep); + if (result) + goto fail; + result = usb_ep_enable(ep); if (result < 0) goto fail; ep->driver_data = ss; @@ -435,6 +490,8 @@ static int sourcesink_setup(struct usb_configuration *c, u16 w_value = le16_to_cpu(ctrl->wValue); u16 w_length = le16_to_cpu(ctrl->wLength); + req->length = USB_BUFSIZ; + /* composite driver infrastructure handles everything except * the two control test requests. */ diff --git a/drivers/usb/gadget/f_subset.c b/drivers/usb/gadget/f_subset.c index 8675ca4..3dc5375 100644 --- a/drivers/usb/gadget/f_subset.c +++ b/drivers/usb/gadget/f_subset.c @@ -57,18 +57,10 @@ * caring about specific product and vendor IDs. */ -struct geth_descs { - struct usb_endpoint_descriptor *in; - struct usb_endpoint_descriptor *out; -}; - struct f_gether { struct gether port; char ethaddr[14]; - - struct geth_descs fs; - struct geth_descs hs; }; static inline struct f_gether *func_to_geth(struct usb_function *f) @@ -209,6 +201,46 @@ static struct usb_descriptor_header *hs_eth_function[] __initdata = { NULL, }; +/* super speed support: */ + +static struct usb_endpoint_descriptor ss_subset_in_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = cpu_to_le16(1024), +}; + +static struct usb_endpoint_descriptor ss_subset_out_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = cpu_to_le16(1024), +}; + +static struct usb_ss_ep_comp_descriptor ss_subset_bulk_comp_desc __initdata = { + .bLength = sizeof ss_subset_bulk_comp_desc, + .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + + /* the following 2 values can be tweaked if necessary */ + /* .bMaxBurst = 0, */ + /* .bmAttributes = 0, */ +}; + +static struct usb_descriptor_header *ss_eth_function[] __initdata = { + (struct usb_descriptor_header *) &subset_data_intf, + (struct usb_descriptor_header *) &mdlm_header_desc, + (struct usb_descriptor_header *) &mdlm_desc, + (struct usb_descriptor_header *) &mdlm_detail_desc, + (struct usb_descriptor_header *) ðer_desc, + (struct usb_descriptor_header *) &ss_subset_in_desc, + (struct usb_descriptor_header *) &ss_subset_bulk_comp_desc, + (struct usb_descriptor_header *) &ss_subset_out_desc, + (struct usb_descriptor_header *) &ss_subset_bulk_comp_desc, + NULL, +}; + /* string descriptors: */ static struct usb_string geth_string_defs[] = { @@ -243,10 +275,12 @@ static int geth_set_alt(struct usb_function *f, unsigned intf, unsigned alt) } DBG(cdev, "init + activate cdc subset\n"); - geth->port.in = ep_choose(cdev->gadget, - geth->hs.in, geth->fs.in); - geth->port.out = ep_choose(cdev->gadget, - geth->hs.out, geth->fs.out); + if (config_ep_by_speed(cdev->gadget, f, geth->port.in_ep) || + config_ep_by_speed(cdev->gadget, f, geth->port.out_ep)) { + geth->port.in_ep->desc = NULL; + geth->port.out_ep->desc = NULL; + return -EINVAL; + } net = gether_connect(&geth->port); return IS_ERR(net) ? PTR_ERR(net) : 0; @@ -296,12 +330,8 @@ geth_bind(struct usb_configuration *c, struct usb_function *f) /* copy descriptors, and track endpoint copies */ f->descriptors = usb_copy_descriptors(fs_eth_function); - - geth->fs.in = usb_find_endpoint(fs_eth_function, - f->descriptors, &fs_subset_in_desc); - geth->fs.out = usb_find_endpoint(fs_eth_function, - f->descriptors, &fs_subset_out_desc); - + if (!f->descriptors) + goto fail; /* support all relevant hardware speeds... we expect that when * hardware is dual speed, all bulk-capable endpoints work at @@ -315,11 +345,20 @@ geth_bind(struct usb_configuration *c, struct usb_function *f) /* copy descriptors, and track endpoint copies */ f->hs_descriptors = usb_copy_descriptors(hs_eth_function); + if (!f->hs_descriptors) + goto fail; + } - geth->hs.in = usb_find_endpoint(hs_eth_function, - f->hs_descriptors, &hs_subset_in_desc); - geth->hs.out = usb_find_endpoint(hs_eth_function, - f->hs_descriptors, &hs_subset_out_desc); + if (gadget_is_superspeed(c->cdev->gadget)) { + ss_subset_in_desc.bEndpointAddress = + fs_subset_in_desc.bEndpointAddress; + ss_subset_out_desc.bEndpointAddress = + fs_subset_out_desc.bEndpointAddress; + + /* copy descriptors, and track endpoint copies */ + f->ss_descriptors = usb_copy_descriptors(ss_eth_function); + if (!f->ss_descriptors) + goto fail; } /* NOTE: all that is done without knowing or caring about @@ -328,15 +367,21 @@ geth_bind(struct usb_configuration *c, struct usb_function *f) */ DBG(cdev, "CDC Subset: %s speed IN/%s OUT/%s\n", + gadget_is_superspeed(c->cdev->gadget) ? "super" : gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", geth->port.in_ep->name, geth->port.out_ep->name); return 0; fail: + if (f->descriptors) + usb_free_descriptors(f->descriptors); + if (f->hs_descriptors) + usb_free_descriptors(f->hs_descriptors); + /* we might as well release our claims on endpoints */ - if (geth->port.out) + if (geth->port.out_ep->desc) geth->port.out_ep->driver_data = NULL; - if (geth->port.in) + if (geth->port.in_ep->desc) geth->port.in_ep->driver_data = NULL; ERROR(cdev, "%s: can't bind, err %d\n", f->name, status); @@ -347,6 +392,8 @@ fail: static void geth_unbind(struct usb_configuration *c, struct usb_function *f) { + if (gadget_is_superspeed(c->cdev->gadget)) + usb_free_descriptors(f->ss_descriptors); if (gadget_is_dualspeed(c->cdev->gadget)) usb_free_descriptors(f->hs_descriptors); usb_free_descriptors(f->descriptors); diff --git a/drivers/usb/gadget/f_uvc.c b/drivers/usb/gadget/f_uvc.c index be446b7..7a8b9aa 100644 --- a/drivers/usb/gadget/f_uvc.c +++ b/drivers/usb/gadget/f_uvc.c @@ -262,8 +262,10 @@ uvc_function_set_alt(struct usb_function *f, unsigned interface, unsigned alt) if (uvc->state != UVC_STATE_CONNECTED) return 0; - if (uvc->video.ep) - usb_ep_enable(uvc->video.ep, &uvc_streaming_ep); + if (uvc->video.ep) { + uvc->video.ep->desc = &uvc_streaming_ep; + usb_ep_enable(uvc->video.ep); + } memset(&v4l2_event, 0, sizeof(v4l2_event)); v4l2_event.type = UVC_EVENT_STREAMON; @@ -649,7 +651,7 @@ uvc_bind_config(struct usb_configuration *c, if (ret) kfree(uvc); - return 0; + return ret; error: kfree(uvc); diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index 0360f56..639e14a 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -929,6 +929,7 @@ static int standard_setup_req(struct fsg_dev *fsg, case USB_DT_DEVICE: VDBG(fsg, "get device descriptor\n"); + device_desc.bMaxPacketSize0 = fsg->ep0->maxpacket; value = sizeof device_desc; memcpy(req->buf, &device_desc, value); break; @@ -936,6 +937,11 @@ static int standard_setup_req(struct fsg_dev *fsg, VDBG(fsg, "get device qualifier\n"); if (!gadget_is_dualspeed(fsg->gadget)) break; + /* + * Assume ep0 uses the same maxpacket value for both + * speeds + */ + dev_qualifier.bMaxPacketSize0 = fsg->ep0->maxpacket; value = sizeof dev_qualifier; memcpy(req->buf, &dev_qualifier, value); break; @@ -2713,7 +2719,8 @@ static int enable_endpoint(struct fsg_dev *fsg, struct usb_ep *ep, int rc; ep->driver_data = fsg; - rc = usb_ep_enable(ep, d); + ep->desc = d; + rc = usb_ep_enable(ep); if (rc) ERROR(fsg, "can't enable %s, result %d\n", ep->name, rc); return rc; @@ -3416,7 +3423,6 @@ static int __init fsg_bind(struct usb_gadget *gadget) } /* Fix up the descriptors */ - device_desc.bMaxPacketSize0 = fsg->ep0->maxpacket; device_desc.idVendor = cpu_to_le16(mod_data.vendor); device_desc.idProduct = cpu_to_le16(mod_data.product); device_desc.bcdDevice = cpu_to_le16(mod_data.release); @@ -3430,9 +3436,6 @@ static int __init fsg_bind(struct usb_gadget *gadget) if (gadget_is_dualspeed(gadget)) { fsg_hs_function[i + FSG_HS_FUNCTION_PRE_EP_ENTRIES] = NULL; - /* Assume ep0 uses the same maxpacket value for both speeds */ - dev_qualifier.bMaxPacketSize0 = fsg->ep0->maxpacket; - /* Assume endpoint addresses are the same for both speeds */ fsg_hs_bulk_in_desc.bEndpointAddress = fsg_fs_bulk_in_desc.bEndpointAddress; @@ -3486,6 +3489,8 @@ static int __init fsg_bind(struct usb_gadget *gadget) } INFO(fsg, DRIVER_DESC ", version: " DRIVER_VERSION "\n"); + INFO(fsg, "NOTE: This driver is deprecated. " + "Consider using g_mass_storage instead.\n"); INFO(fsg, "Number of LUNs=%d\n", fsg->nluns); pathbuf = kmalloc(PATH_MAX, GFP_KERNEL); diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c index 3a68e09..3bf872e 100644 --- a/drivers/usb/gadget/fsl_qe_udc.c +++ b/drivers/usb/gadget/fsl_qe_udc.c @@ -1927,6 +1927,10 @@ static int qe_pullup(struct usb_gadget *gadget, int is_on) return -ENOTSUPP; } +static int fsl_qe_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int fsl_qe_stop(struct usb_gadget_driver *driver); + /* defined in usb_gadget.h */ static struct usb_gadget_ops qe_gadget_ops = { .get_frame = qe_get_frame, @@ -1935,6 +1939,8 @@ static struct usb_gadget_ops qe_gadget_ops = { .vbus_session = qe_vbus_session, .vbus_draw = qe_vbus_draw, .pullup = qe_pullup, + .start = fsl_qe_start, + .stop = fsl_qe_stop, }; /*------------------------------------------------------------------------- @@ -2320,7 +2326,7 @@ static irqreturn_t qe_udc_irq(int irq, void *_udc) /*------------------------------------------------------------------------- Gadget driver probe and unregister. --------------------------------------------------------------------------*/ -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int fsl_qe_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { int retval; @@ -2369,9 +2375,8 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, udc_controller->gadget.name, driver->driver.name); return 0; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int fsl_qe_stop(struct usb_gadget_driver *driver) { struct qe_ep *loop_ep; unsigned long flags; @@ -2411,7 +2416,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) driver->driver.name); return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); /* udc structure's alloc and setup, include ep-param alloc */ static struct qe_udc __devinit *qe_udc_config(struct platform_device *ofdev) @@ -2662,11 +2666,17 @@ static int __devinit qe_udc_probe(struct platform_device *ofdev) if (ret) goto err6; + ret = usb_add_gadget_udc(&ofdev->dev, &udc_controller->gadget); + if (ret) + goto err7; + dev_info(udc_controller->dev, "%s USB controller initialized as device\n", (udc_controller->soc_type == PORT_QE) ? "QE" : "CPM"); return 0; +err7: + device_unregister(&udc_controller->gadget.dev); err6: free_irq(udc_controller->usb_irq, udc_controller); err5: @@ -2721,6 +2731,8 @@ static int __devexit qe_udc_remove(struct platform_device *ofdev) if (!udc_controller) return -ENODEV; + usb_del_gadget_udc(&udc_controller->gadget); + udc_controller->done = &done; tasklet_disable(&udc_controller->rx_tasklet); diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index 3e59035..de24a42 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -1244,6 +1244,9 @@ static int fsl_pullup(struct usb_gadget *gadget, int is_on) return 0; } +static int fsl_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int fsl_stop(struct usb_gadget_driver *driver); /* defined in gadget.h */ static struct usb_gadget_ops fsl_gadget_ops = { .get_frame = fsl_get_frame, @@ -1252,6 +1255,8 @@ static struct usb_gadget_ops fsl_gadget_ops = { .vbus_session = fsl_vbus_session, .vbus_draw = fsl_vbus_draw, .pullup = fsl_pullup, + .start = fsl_start, + .stop = fsl_stop, }; /* Set protocol stall on ep0, protocol stall will automatically be cleared @@ -1927,7 +1932,7 @@ static irqreturn_t fsl_udc_irq(int irq, void *_udc) * Hook to gadget drivers * Called by initialization code of gadget drivers *----------------------------------------------------------------*/ -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int fsl_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { int retval = -ENODEV; @@ -1995,10 +2000,9 @@ out: retval); return retval; } -EXPORT_SYMBOL(usb_gadget_probe_driver); /* Disconnect from gadget driver */ -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int fsl_stop(struct usb_gadget_driver *driver) { struct fsl_ep *loop_ep; unsigned long flags; @@ -2041,7 +2045,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) driver->driver.name); return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); /*------------------------------------------------------------------------- PROC File System Support @@ -2590,9 +2593,16 @@ static int __init fsl_udc_probe(struct platform_device *pdev) ret = -ENOMEM; goto err_unregister; } + + ret = usb_add_gadget_udc(&pdev->dev, &udc_controller->gadget); + if (ret) + goto err_del_udc; + create_proc_file(); return 0; +err_del_udc: + dma_pool_destroy(udc_controller->td_pool); err_unregister: device_unregister(&udc_controller->gadget.dev); err_free_irq: @@ -2624,6 +2634,8 @@ static int __exit fsl_udc_remove(struct platform_device *pdev) if (!udc_controller) return -ENODEV; + + usb_del_gadget_udc(&udc_controller->gadget); udc_controller->done = &done; fsl_udc_clk_release(); diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c index 763d462..24a9243 100644 --- a/drivers/usb/gadget/fusb300_udc.c +++ b/drivers/usb/gadget/fusb300_udc.c @@ -767,56 +767,6 @@ static void fusb300_rdfifo(struct fusb300_ep *ep, } while (!reg); } -/* write data to fifo */ -static void fusb300_wrfifo(struct fusb300_ep *ep, - struct fusb300_request *req) -{ - int i = 0; - u8 *tmp; - u32 data, reg; - struct fusb300 *fusb300 = ep->fusb300; - - tmp = req->req.buf; - req->req.actual = req->req.length; - - for (i = (req->req.length >> 2); i > 0; i--) { - data = *tmp | *(tmp + 1) << 8 | - *(tmp + 2) << 16 | *(tmp + 3) << 24; - - iowrite32(data, fusb300->reg + - FUSB300_OFFSET_EPPORT(ep->epnum)); - tmp += 4; - } - - switch (req->req.length % 4) { - case 1: - data = *tmp; - iowrite32(data, fusb300->reg + - FUSB300_OFFSET_EPPORT(ep->epnum)); - break; - case 2: - data = *tmp | *(tmp + 1) << 8; - iowrite32(data, fusb300->reg + - FUSB300_OFFSET_EPPORT(ep->epnum)); - break; - case 3: - data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16; - iowrite32(data, fusb300->reg + - FUSB300_OFFSET_EPPORT(ep->epnum)); - break; - default: - break; - } - - do { - reg = ioread32(fusb300->reg + FUSB300_OFFSET_IGR1); - reg &= FUSB300_IGR1_SYNF0_EMPTY_INT; - if (i) - printk(KERN_INFO"sync fifo is not empty!\n"); - i++; - } while (!reg); -} - static u8 fusb300_get_epnstall(struct fusb300 *fusb300, u8 ep) { u8 value; @@ -980,11 +930,6 @@ static void set_address(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl) } \ } while (0) -static void fusb300_ep0_complete(struct usb_ep *ep, - struct usb_request *req) -{ -} - static int setup_packet(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl) { u8 *p = (u8 *)ctrl; @@ -1029,17 +974,6 @@ static int setup_packet(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl) return ret; } -static void fusb300_set_ep_bycnt(struct fusb300_ep *ep, u32 bycnt) -{ - struct fusb300 *fusb300 = ep->fusb300; - u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPFFR(ep->epnum)); - - reg &= ~FUSB300_FFR_BYCNT; - reg |= bycnt & FUSB300_FFR_BYCNT; - - iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPFFR(ep->epnum)); -} - static void done(struct fusb300_ep *ep, struct fusb300_request *req, int status) { @@ -1063,8 +997,8 @@ static void done(struct fusb300_ep *ep, struct fusb300_request *req, fusb300_set_cxdone(ep->fusb300); } -void fusb300_fill_idma_prdtbl(struct fusb300_ep *ep, - struct fusb300_request *req) +static void fusb300_fill_idma_prdtbl(struct fusb300_ep *ep, dma_addr_t d, + u32 len) { u32 value; u32 reg; @@ -1076,10 +1010,9 @@ void fusb300_fill_idma_prdtbl(struct fusb300_ep *ep, reg &= FUSB300_EPPRD0_H; } while (reg); - iowrite32((u32) req->req.buf, ep->fusb300->reg + - FUSB300_OFFSET_EPPRD_W1(ep->epnum)); + iowrite32(d, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W1(ep->epnum)); - value = FUSB300_EPPRD0_BTC(req->req.length) | FUSB300_EPPRD0_H | + value = FUSB300_EPPRD0_BTC(len) | FUSB300_EPPRD0_H | FUSB300_EPPRD0_F | FUSB300_EPPRD0_L | FUSB300_EPPRD0_I; iowrite32(value, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W0(ep->epnum)); @@ -1116,13 +1049,12 @@ static void fusb300_set_idma(struct fusb300_ep *ep, struct fusb300_request *req) { dma_addr_t d; - u8 *tmp = NULL; d = dma_map_single(NULL, req->req.buf, req->req.length, DMA_TO_DEVICE); if (dma_mapping_error(NULL, d)) { - kfree(req->req.buf); printk(KERN_DEBUG "dma_mapping_error\n"); + return; } dma_sync_single_for_device(NULL, d, req->req.length, DMA_TO_DEVICE); @@ -1130,17 +1062,11 @@ static void fusb300_set_idma(struct fusb300_ep *ep, fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_IGER0, FUSB300_IGER0_EEPn_PRD_INT(ep->epnum)); - tmp = req->req.buf; - req->req.buf = (u8 *)d; - - fusb300_fill_idma_prdtbl(ep, req); + fusb300_fill_idma_prdtbl(ep, d, req->req.length); /* check idma is done */ fusb300_wait_idma_finished(ep); - req->req.buf = tmp; - - if (d) - dma_unmap_single(NULL, d, req->req.length, DMA_TO_DEVICE); + dma_unmap_single(NULL, d, req->req.length, DMA_TO_DEVICE); } static void in_ep_fifo_handler(struct fusb300_ep *ep) @@ -1148,14 +1074,8 @@ static void in_ep_fifo_handler(struct fusb300_ep *ep) struct fusb300_request *req = list_entry(ep->queue.next, struct fusb300_request, queue); - if (req->req.length) { -#if 0 - fusb300_set_ep_bycnt(ep, req->req.length); - fusb300_wrfifo(ep, req); -#else + if (req->req.length) fusb300_set_idma(ep, req); -#endif - } done(ep, req, 0); } @@ -1500,7 +1420,7 @@ static void init_controller(struct fusb300 *fusb300) /*------------------------------------------------------------------------*/ static struct fusb300 *the_controller; -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int fusb300_udc_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct fusb300 *fusb300 = the_controller; @@ -1544,9 +1464,8 @@ error: return retval; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int fusb300_udc_stop(struct usb_gadget_driver *driver) { struct fusb300 *fusb300 = the_controller; @@ -1562,7 +1481,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); /*--------------------------------------------------------------------------*/ static int fusb300_udc_pullup(struct usb_gadget *_gadget, int is_active) @@ -1572,12 +1490,15 @@ static int fusb300_udc_pullup(struct usb_gadget *_gadget, int is_active) static struct usb_gadget_ops fusb300_gadget_ops = { .pullup = fusb300_udc_pullup, + .start = fusb300_udc_start, + .stop = fusb300_udc_stop, }; static int __exit fusb300_remove(struct platform_device *pdev) { struct fusb300 *fusb300 = dev_get_drvdata(&pdev->dev); + usb_del_gadget_udc(&fusb300->gadget); iounmap(fusb300->reg); free_irq(platform_get_irq(pdev, 0), fusb300); @@ -1702,9 +1623,15 @@ static int __init fusb300_probe(struct platform_device *pdev) goto clean_up3; init_controller(fusb300); + ret = usb_add_gadget_udc(&pdev->dev, &fusb300->gadget); + if (ret) + goto err_add_udc; + dev_info(&pdev->dev, "version %s\n", DRIVER_VERSION); return 0; +err_add_udc: + fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req); clean_up3: free_irq(ires->start, fusb300); diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index ebf6970..704c280 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -162,6 +162,7 @@ static struct usb_composite_driver gfs_driver = { .name = DRIVER_NAME, .dev = &gfs_dev_desc, .strings = gfs_dev_strings, + .max_speed = USB_SPEED_HIGH, .unbind = gfs_unbind, .iProduct = DRIVER_DESC, }; diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h index bcdac7c..f3a83cd 100644 --- a/drivers/usb/gadget/gadget_chips.h +++ b/drivers/usb/gadget/gadget_chips.h @@ -15,150 +15,40 @@ #ifndef __GADGET_CHIPS_H #define __GADGET_CHIPS_H -#ifdef CONFIG_USB_GADGET_NET2280 -#define gadget_is_net2280(g) !strcmp("net2280", (g)->name) -#else -#define gadget_is_net2280(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_AMD5536UDC -#define gadget_is_amd5536udc(g) !strcmp("amd5536udc", (g)->name) -#else -#define gadget_is_amd5536udc(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_DUMMY_HCD -#define gadget_is_dummy(g) !strcmp("dummy_udc", (g)->name) -#else -#define gadget_is_dummy(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_PXA25X -#define gadget_is_pxa(g) !strcmp("pxa25x_udc", (g)->name) -#else -#define gadget_is_pxa(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_GOKU -#define gadget_is_goku(g) !strcmp("goku_udc", (g)->name) -#else -#define gadget_is_goku(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_OMAP -#define gadget_is_omap(g) !strcmp("omap_udc", (g)->name) -#else -#define gadget_is_omap(g) 0 -#endif - -/* various unstable versions available */ -#ifdef CONFIG_USB_GADGET_PXA27X -#define gadget_is_pxa27x(g) !strcmp("pxa27x_udc", (g)->name) -#else -#define gadget_is_pxa27x(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_ATMEL_USBA -#define gadget_is_atmel_usba(g) !strcmp("atmel_usba_udc", (g)->name) -#else -#define gadget_is_atmel_usba(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_S3C2410 -#define gadget_is_s3c2410(g) !strcmp("s3c2410_udc", (g)->name) -#else -#define gadget_is_s3c2410(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_AT91 -#define gadget_is_at91(g) !strcmp("at91_udc", (g)->name) -#else -#define gadget_is_at91(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_IMX -#define gadget_is_imx(g) !strcmp("imx_udc", (g)->name) -#else -#define gadget_is_imx(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_FSL_USB2 -#define gadget_is_fsl_usb2(g) !strcmp("fsl-usb2-udc", (g)->name) -#else -#define gadget_is_fsl_usb2(g) 0 -#endif - -/* Mentor high speed "dual role" controller, in peripheral role */ -#ifdef CONFIG_USB_GADGET_MUSB_HDRC -#define gadget_is_musbhdrc(g) !strcmp("musb-hdrc", (g)->name) -#else -#define gadget_is_musbhdrc(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_LANGWELL -#define gadget_is_langwell(g) (!strcmp("langwell_udc", (g)->name)) -#else -#define gadget_is_langwell(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_M66592 -#define gadget_is_m66592(g) !strcmp("m66592_udc", (g)->name) -#else -#define gadget_is_m66592(g) 0 -#endif - -/* Freescale CPM/QE UDC SUPPORT */ -#ifdef CONFIG_USB_GADGET_FSL_QE -#define gadget_is_fsl_qe(g) !strcmp("fsl_qe_udc", (g)->name) -#else -#define gadget_is_fsl_qe(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_CI13XXX_PCI -#define gadget_is_ci13xxx_pci(g) (!strcmp("ci13xxx_pci", (g)->name)) -#else -#define gadget_is_ci13xxx_pci(g) 0 -#endif - -// CONFIG_USB_GADGET_SX2 -// CONFIG_USB_GADGET_AU1X00 -// ... - -#ifdef CONFIG_USB_GADGET_R8A66597 -#define gadget_is_r8a66597(g) !strcmp("r8a66597_udc", (g)->name) -#else -#define gadget_is_r8a66597(g) 0 -#endif - -#ifdef CONFIG_USB_S3C_HSOTG -#define gadget_is_s3c_hsotg(g) (!strcmp("s3c-hsotg", (g)->name)) -#else -#define gadget_is_s3c_hsotg(g) 0 -#endif - -#ifdef CONFIG_USB_S3C_HSUDC -#define gadget_is_s3c_hsudc(g) (!strcmp("s3c-hsudc", (g)->name)) -#else -#define gadget_is_s3c_hsudc(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_EG20T -#define gadget_is_pch(g) (!strcmp("pch_udc", (g)->name)) -#else -#define gadget_is_pch(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_CI13XXX_MSM +/* + * NOTICE: the entries below are alphabetical and should be kept + * that way. + * + * Always be sure to add new entries to the correct position or + * accept the bashing later. + * + * If you have forgotten the alphabetical order let VIM/EMACS + * do that for you. + */ +#define gadget_is_amd5536udc(g) (!strcmp("amd5536udc", (g)->name)) +#define gadget_is_at91(g) (!strcmp("at91_udc", (g)->name)) +#define gadget_is_atmel_usba(g) (!strcmp("atmel_usba_udc", (g)->name)) #define gadget_is_ci13xxx_msm(g) (!strcmp("ci13xxx_msm", (g)->name)) -#else -#define gadget_is_ci13xxx_msm(g) 0 -#endif - -#ifdef CONFIG_USB_GADGET_RENESAS_USBHS -#define gadget_is_renesas_usbhs(g) (!strcmp("renesas_usbhs_udc", (g)->name)) -#else -#define gadget_is_renesas_usbhs(g) 0 -#endif +#define gadget_is_ci13xxx_pci(g) (!strcmp("ci13xxx_pci", (g)->name)) +#define gadget_is_dummy(g) (!strcmp("dummy_udc", (g)->name)) +#define gadget_is_fsl_qe(g) (!strcmp("fsl_qe_udc", (g)->name)) +#define gadget_is_fsl_usb2(g) (!strcmp("fsl-usb2-udc", (g)->name)) +#define gadget_is_goku(g) (!strcmp("goku_udc", (g)->name)) +#define gadget_is_imx(g) (!strcmp("imx_udc", (g)->name)) +#define gadget_is_langwell(g) (!strcmp("langwell_udc", (g)->name)) +#define gadget_is_m66592(g) (!strcmp("m66592_udc", (g)->name)) +#define gadget_is_musbhdrc(g) (!strcmp("musb-hdrc", (g)->name)) +#define gadget_is_net2272(g) (!strcmp("net2272", (g)->name)) +#define gadget_is_net2280(g) (!strcmp("net2280", (g)->name)) +#define gadget_is_omap(g) (!strcmp("omap_udc", (g)->name)) +#define gadget_is_pch(g) (!strcmp("pch_udc", (g)->name)) +#define gadget_is_pxa(g) (!strcmp("pxa25x_udc", (g)->name)) +#define gadget_is_pxa27x(g) (!strcmp("pxa27x_udc", (g)->name)) +#define gadget_is_r8a66597(g) (!strcmp("r8a66597_udc", (g)->name)) +#define gadget_is_renesas_usbhs(g) (!strcmp("renesas_usbhs_udc", (g)->name)) +#define gadget_is_s3c2410(g) (!strcmp("s3c2410_udc", (g)->name)) +#define gadget_is_s3c_hsotg(g) (!strcmp("s3c-hsotg", (g)->name)) +#define gadget_is_s3c_hsudc(g) (!strcmp("s3c-hsudc", (g)->name)) /** * usb_gadget_controller_number - support bcdDevice id convention @@ -223,6 +113,8 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget) return 0x29; else if (gadget_is_s3c_hsudc(gadget)) return 0x30; + else if (gadget_is_net2272(gadget)) + return 0x31; return -ENOENT; } diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c index 47b86b9..8b9220e 100644 --- a/drivers/usb/gadget/gmidi.c +++ b/drivers/usb/gadget/gmidi.c @@ -537,14 +537,16 @@ static int set_gmidi_config(struct gmidi_device *dev, gfp_t gfp_flags) struct usb_ep *ep; unsigned i; - err = usb_ep_enable(dev->in_ep, &bulk_in_desc); + dev->in_ep->desc = &bulk_in_desc; + err = usb_ep_enable(dev->in_ep); if (err) { ERROR(dev, "can't start %s: %d\n", dev->in_ep->name, err); goto fail; } dev->in_ep->driver_data = dev; - err = usb_ep_enable(dev->out_ep, &bulk_out_desc); + dev->out_ep->desc = &bulk_out_desc; + err = usb_ep_enable(dev->out_ep); if (err) { ERROR(dev, "can't start %s: %d\n", dev->out_ep->name, err); goto fail; @@ -693,6 +695,7 @@ static int gmidi_setup(struct usb_gadget *gadget, switch (w_value >> 8) { case USB_DT_DEVICE: + device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket; value = min(w_length, (u16) sizeof(device_desc)); memcpy(req->buf, &device_desc, value); break; @@ -1247,8 +1250,6 @@ autoconf_fail: dev->req->complete = gmidi_setup_complete; - device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket; - gadget->ep0->driver_data = dev; INFO(dev, "%s, version: " DRIVER_VERSION "\n", longname); diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index bf6e11c..7f87805 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -996,8 +996,14 @@ static int goku_get_frame(struct usb_gadget *_gadget) return -EOPNOTSUPP; } +static int goku_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int goku_stop(struct usb_gadget_driver *driver); + static const struct usb_gadget_ops goku_ops = { .get_frame = goku_get_frame, + .start = goku_start, + .stop = goku_stop, // no remote wakeup // not selfpowered }; @@ -1344,7 +1350,7 @@ static struct goku_udc *the_controller; * disconnect is reported. then a host may connect again, or * the driver might get unbound. */ -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int goku_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct goku_udc *dev = the_controller; @@ -1382,7 +1388,6 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, DBG(dev, "registered gadget driver '%s'\n", driver->driver.name); return 0; } -EXPORT_SYMBOL(usb_gadget_probe_driver); static void stop_activity(struct goku_udc *dev, struct usb_gadget_driver *driver) @@ -1408,7 +1413,7 @@ stop_activity(struct goku_udc *dev, struct usb_gadget_driver *driver) udc_enable(dev); } -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int goku_stop(struct usb_gadget_driver *driver) { struct goku_udc *dev = the_controller; unsigned long flags; @@ -1429,8 +1434,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) DBG(dev, "unregistered driver '%s'\n", driver->driver.name); return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); - /*-------------------------------------------------------------------------*/ @@ -1730,6 +1733,8 @@ static void goku_remove(struct pci_dev *pdev) DBG(dev, "%s\n", __func__); + usb_del_gadget_udc(&dev->gadget); + BUG_ON(dev->driver); #ifdef CONFIG_USB_GADGET_DEBUG_FILES @@ -1854,6 +1859,10 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto err; } dev->registered = 1; + retval = usb_add_gadget_udc(&pdev->dev, &dev->gadget); + if (retval) + goto err; + return 0; err: diff --git a/drivers/usb/gadget/hid.c b/drivers/usb/gadget/hid.c index 2523e54..9fb5750 100644 --- a/drivers/usb/gadget/hid.c +++ b/drivers/usb/gadget/hid.c @@ -255,6 +255,7 @@ static struct usb_composite_driver hidg_driver = { .name = "g_hid", .dev = &device_desc, .strings = dev_strings, + .max_speed = USB_SPEED_HIGH, .unbind = __exit_p(hid_unbind), }; diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c index ade4006..692fd9b 100644 --- a/drivers/usb/gadget/imx_udc.c +++ b/drivers/usb/gadget/imx_udc.c @@ -1237,9 +1237,14 @@ irq_handler_t intr_handler(int i) ******************************************************************************* */ +static int imx_udc_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int imx_udc_stop(struct usb_gadget_driver *driver); static const struct usb_gadget_ops imx_udc_ops = { .get_frame = imx_udc_get_frame, .wakeup = imx_udc_wakeup, + .start = imx_udc_start, + .stop = imx_udc_stop, }; static struct imx_udc_struct controller = { @@ -1324,7 +1329,7 @@ static struct imx_udc_struct controller = { * USB gadget driver functions ******************************************************************************* */ -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int imx_udc_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct imx_udc_struct *imx_usb = &controller; @@ -1368,9 +1373,8 @@ fail: imx_usb->gadget.dev.driver = NULL; return retval; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int imx_udc_stop(struct usb_gadget_driver *driver) { struct imx_udc_struct *imx_usb = &controller; @@ -1394,7 +1398,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); /******************************************************************************* * Module functions @@ -1504,8 +1507,14 @@ static int __init imx_udc_probe(struct platform_device *pdev) imx_usb->timer.function = handle_config; imx_usb->timer.data = (unsigned long)imx_usb; - return 0; + ret = usb_add_gadget_udc(&pdev->dev, &imx_usb->gadget); + if (ret) + goto fail4; + return 0; +fail4: + for (i = 0; i < IMX_USB_NB_EP + 1; i++) + free_irq(imx_usb->usbd_int[i], imx_usb); fail3: clk_put(clk); clk_disable(clk); @@ -1525,6 +1534,7 @@ static int __exit imx_udc_remove(struct platform_device *pdev) struct imxusb_platform_data *pdata = pdev->dev.platform_data; int i; + usb_del_gadget_udc(&imx_usb->gadget); imx_udc_disable(imx_usb); del_timer(&imx_usb->timer); diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index a56876a..1b24099 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -832,14 +832,16 @@ ep_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) switch (data->dev->gadget->speed) { case USB_SPEED_LOW: case USB_SPEED_FULL: - value = usb_ep_enable (ep, &data->desc); + ep->desc = &data->desc; + value = usb_ep_enable(ep); if (value == 0) data->state = STATE_EP_ENABLED; break; #ifdef CONFIG_USB_GADGET_DUALSPEED case USB_SPEED_HIGH: /* fails if caller didn't provide that descriptor... */ - value = usb_ep_enable (ep, &data->hs_desc); + ep->desc = &data->hs_desc; + value = usb_ep_enable(ep); if (value == 0) data->state = STATE_EP_ENABLED; break; @@ -1345,7 +1347,7 @@ static void make_qualifier (struct dev_data *dev) qual.bDeviceProtocol = desc->bDeviceProtocol; /* assumes ep0 uses the same value for both speeds ... */ - qual.bMaxPacketSize0 = desc->bMaxPacketSize0; + qual.bMaxPacketSize0 = dev->gadget->ep0->maxpacket; qual.bNumConfigurations = 1; qual.bRESERVED = 0; @@ -1402,7 +1404,6 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) } dev->state = STATE_DEV_CONNECTED; - dev->dev->bMaxPacketSize0 = gadget->ep0->maxpacket; INFO (dev, "connected\n"); event = next_event (dev, GADGETFS_CONNECT); @@ -1430,6 +1431,7 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) case USB_DT_DEVICE: value = min (w_length, (u16) sizeof *dev->dev); + dev->dev->bMaxPacketSize0 = dev->gadget->ep0->maxpacket; req->buf = dev->dev; break; #ifdef CONFIG_USB_GADGET_DUALSPEED @@ -1710,7 +1712,6 @@ gadgetfs_bind (struct usb_gadget *gadget) set_gadget_data (gadget, dev); dev->gadget = gadget; gadget->ep0->driver_data = dev; - dev->dev->bMaxPacketSize0 = gadget->ep0->maxpacket; /* preallocate control response and buffer */ dev->req = usb_ep_alloc_request (gadget->ep0, GFP_KERNEL); diff --git a/drivers/usb/gadget/langwell_udc.c b/drivers/usb/gadget/langwell_udc.c index 9cee88a..a06e2c2 100644 --- a/drivers/usb/gadget/langwell_udc.c +++ b/drivers/usb/gadget/langwell_udc.c @@ -593,8 +593,8 @@ static int queue_dtd(struct langwell_ep *ep, struct langwell_request *req) /* ep0 */ dev_vdbg(&dev->pdev->dev, "%s-%s\n", ep->name, DIR_STRING(ep)); - dev_vdbg(&dev->pdev->dev, "ep_dqh[%d] addr: 0x%08x\n", - i, (u32)&(dev->ep_dqh[i])); + dev_vdbg(&dev->pdev->dev, "ep_dqh[%d] addr: 0x%p\n", + i, &(dev->ep_dqh[i])); bit_mask = is_in(ep) ? (1 << (ep->ep_num + 16)) : (1 << (ep->ep_num)); @@ -1321,7 +1321,9 @@ static int langwell_pullup(struct usb_gadget *_gadget, int is_on) return 0; } - +static int langwell_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int langwell_stop(struct usb_gadget_driver *driver); /* device controller usb_gadget_ops structure */ static const struct usb_gadget_ops langwell_ops = { @@ -1342,6 +1344,9 @@ static const struct usb_gadget_ops langwell_ops = { /* D+ pullup, software-controlled connect/disconnect to USB host */ .pullup = langwell_pullup, + + .start = langwell_start, + .stop = langwell_stop, }; @@ -1852,7 +1857,7 @@ static DEVICE_ATTR(remote_wakeup, S_IWUSR, NULL, store_remote_wakeup); * the driver might get unbound. */ -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int langwell_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct langwell_udc *dev = the_controller; @@ -1914,11 +1919,9 @@ err_unbind: dev_dbg(&dev->pdev->dev, "<--- %s()\n", __func__); return retval; } -EXPORT_SYMBOL(usb_gadget_probe_driver); - /* unregister gadget driver */ -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int langwell_stop(struct usb_gadget_driver *driver) { struct langwell_udc *dev = the_controller; unsigned long flags; @@ -1965,8 +1968,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) dev_dbg(&dev->pdev->dev, "<--- %s()\n", __func__); return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); - /*-------------------------------------------------------------------------*/ @@ -3270,7 +3271,7 @@ static int langwell_udc_probe(struct pci_dev *pdev, /* allocate device dQH memory */ size = dev->ep_max * sizeof(struct langwell_dqh); - dev_vdbg(&dev->pdev->dev, "orig size = %d\n", size); + dev_vdbg(&dev->pdev->dev, "orig size = %zd\n", size); if (size < DQH_ALIGNMENT) size = DQH_ALIGNMENT; else if ((size % DQH_ALIGNMENT) != 0) { @@ -3285,7 +3286,7 @@ static int langwell_udc_probe(struct pci_dev *pdev, goto error; } dev->ep_dqh_size = size; - dev_vdbg(&dev->pdev->dev, "ep_dqh_size = %d\n", dev->ep_dqh_size); + dev_vdbg(&dev->pdev->dev, "ep_dqh_size = %zd\n", dev->ep_dqh_size); /* initialize ep0 status request structure */ dev->status_req = kzalloc(sizeof(struct langwell_request), GFP_KERNEL); @@ -3373,6 +3374,10 @@ static int langwell_udc_probe(struct pci_dev *pdev, if (retval) goto error; + retval = usb_add_gadget_udc(&pdev->dev, &dev->gadget); + if (retval) + goto error; + retval = device_create_file(&pdev->dev, &dev_attr_langwell_udc); if (retval) goto error; @@ -3403,6 +3408,7 @@ static int langwell_udc_suspend(struct pci_dev *pdev, pm_message_t state) dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__); + usb_del_gadget_udc(&dev->gadget); /* disable interrupt and set controller to stop state */ langwell_udc_stop(dev); @@ -3464,7 +3470,7 @@ static int langwell_udc_resume(struct pci_dev *pdev) /* allocate device dQH memory */ size = dev->ep_max * sizeof(struct langwell_dqh); - dev_vdbg(&dev->pdev->dev, "orig size = %d\n", size); + dev_vdbg(&dev->pdev->dev, "orig size = %zd\n", size); if (size < DQH_ALIGNMENT) size = DQH_ALIGNMENT; else if ((size % DQH_ALIGNMENT) != 0) { @@ -3478,7 +3484,7 @@ static int langwell_udc_resume(struct pci_dev *pdev) return -ENOMEM; } dev->ep_dqh_size = size; - dev_vdbg(&dev->pdev->dev, "ep_dqh_size = %d\n", dev->ep_dqh_size); + dev_vdbg(&dev->pdev->dev, "ep_dqh_size = %zd\n", dev->ep_dqh_size); /* create dTD dma_pool resource */ dev->dtd_pool = dma_pool_create("langwell_dtd", diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c index 084aa08..491f825 100644 --- a/drivers/usb/gadget/m66592-udc.c +++ b/drivers/usb/gadget/m66592-udc.c @@ -3,7 +3,7 @@ * * Copyright (C) 2006-2007 Renesas Solutions Corp. * - * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> + * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> * * 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 @@ -691,6 +691,7 @@ static void init_controller(struct m66592 *m66592) static void disable_controller(struct m66592 *m66592) { + m66592_bclr(m66592, M66592_UTST, M66592_TESTMODE); if (!m66592->pdata->on_chip) { m66592_bclr(m66592, M66592_SCKE, M66592_SYSCFG); udelay(1); @@ -780,7 +781,7 @@ static void irq_ep0_write(struct m66592_ep *ep, struct m66592_request *req) /* write fifo */ if (req->req.buf) { if (size > 0) - m66592_write_fifo(m66592, ep->fifoaddr, buf, size); + m66592_write_fifo(m66592, ep, buf, size); if ((size == 0) || ((size % ep->ep.maxpacket) != 0)) m66592_bset(m66592, M66592_BVAL, ep->fifoctr); } @@ -826,7 +827,7 @@ static void irq_packet_write(struct m66592_ep *ep, struct m66592_request *req) /* write fifo */ if (req->req.buf) { - m66592_write_fifo(m66592, ep->fifoaddr, buf, size); + m66592_write_fifo(m66592, ep, buf, size); if ((size == 0) || ((size % ep->ep.maxpacket) != 0) || ((bufsize != ep->ep.maxpacket) @@ -1048,10 +1049,30 @@ static void clear_feature(struct m66592 *m66592, struct usb_ctrlrequest *ctrl) static void set_feature(struct m66592 *m66592, struct usb_ctrlrequest *ctrl) { + u16 tmp; + int timeout = 3000; switch (ctrl->bRequestType & USB_RECIP_MASK) { case USB_RECIP_DEVICE: - control_end(m66592, 1); + switch (le16_to_cpu(ctrl->wValue)) { + case USB_DEVICE_TEST_MODE: + control_end(m66592, 1); + /* Wait for the completion of status stage */ + do { + tmp = m66592_read(m66592, M66592_INTSTS0) & + M66592_CTSQ; + udelay(1); + } while (tmp != M66592_CS_IDST || timeout-- > 0); + + if (tmp == M66592_CS_IDST) + m66592_bset(m66592, + le16_to_cpu(ctrl->wIndex >> 8), + M66592_TESTMODE); + break; + default: + pipe_stall(m66592, 0); + break; + } break; case USB_RECIP_INTERFACE: control_end(m66592, 1); @@ -1454,7 +1475,7 @@ static struct usb_ep_ops m66592_ep_ops = { /*-------------------------------------------------------------------------*/ static struct m66592 *the_controller; -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int m66592_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct m66592 *m66592 = the_controller; @@ -1506,9 +1527,8 @@ error: return retval; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int m66592_stop(struct usb_gadget_driver *driver) { struct m66592 *m66592 = the_controller; unsigned long flags; @@ -1533,7 +1553,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) m66592->driver = NULL; return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); /*-------------------------------------------------------------------------*/ static int m66592_get_frame(struct usb_gadget *_gadget) @@ -1542,14 +1561,34 @@ static int m66592_get_frame(struct usb_gadget *_gadget) return m66592_read(m66592, M66592_FRMNUM) & 0x03FF; } +static int m66592_pullup(struct usb_gadget *gadget, int is_on) +{ + struct m66592 *m66592 = gadget_to_m66592(gadget); + unsigned long flags; + + spin_lock_irqsave(&m66592->lock, flags); + if (is_on) + m66592_bset(m66592, M66592_DPRPU, M66592_SYSCFG); + else + m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG); + spin_unlock_irqrestore(&m66592->lock, flags); + + return 0; +} + static struct usb_gadget_ops m66592_gadget_ops = { .get_frame = m66592_get_frame, + .start = m66592_start, + .stop = m66592_stop, + .pullup = m66592_pullup, }; static int __exit m66592_remove(struct platform_device *pdev) { struct m66592 *m66592 = dev_get_drvdata(&pdev->dev); + usb_del_gadget_udc(&m66592->gadget); + del_timer_sync(&m66592->timer); iounmap(m66592->reg); free_irq(platform_get_irq(pdev, 0), m66592); @@ -1691,9 +1730,16 @@ static int __init m66592_probe(struct platform_device *pdev) init_controller(m66592); + ret = usb_add_gadget_udc(&pdev->dev, &m66592->gadget); + if (ret) + goto err_add_udc; + dev_info(&pdev->dev, "version %s\n", DRIVER_VERSION); return 0; +err_add_udc: + m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req); + clean_up3: #ifdef CONFIG_HAVE_CLK if (m66592->pdata->on_chip) { diff --git a/drivers/usb/gadget/m66592-udc.h b/drivers/usb/gadget/m66592-udc.h index c3caf1a..7b93d57 100644 --- a/drivers/usb/gadget/m66592-udc.h +++ b/drivers/usb/gadget/m66592-udc.h @@ -3,7 +3,7 @@ * * Copyright (C) 2006-2007 Renesas Solutions Corp. * - * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> + * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> * * 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 @@ -561,11 +561,26 @@ static inline void m66592_write(struct m66592 *m66592, u16 val, iowrite16(val, m66592->reg + offset); } +static inline void m66592_mdfy(struct m66592 *m66592, u16 val, u16 pat, + unsigned long offset) +{ + u16 tmp; + tmp = m66592_read(m66592, offset); + tmp = tmp & (~pat); + tmp = tmp | val; + m66592_write(m66592, tmp, offset); +} + +#define m66592_bclr(m66592, val, offset) \ + m66592_mdfy(m66592, 0, val, offset) +#define m66592_bset(m66592, val, offset) \ + m66592_mdfy(m66592, val, 0, offset) + static inline void m66592_write_fifo(struct m66592 *m66592, - unsigned long offset, + struct m66592_ep *ep, void *buf, unsigned long len) { - void __iomem *fifoaddr = m66592->reg + offset; + void __iomem *fifoaddr = m66592->reg + ep->fifoaddr; if (m66592->pdata->on_chip) { unsigned long count; @@ -591,26 +606,15 @@ static inline void m66592_write_fifo(struct m66592 *m66592, iowrite16_rep(fifoaddr, buf, len); if (odd) { unsigned char *p = buf + len*2; + if (m66592->pdata->wr0_shorted_to_wr1) + m66592_bclr(m66592, M66592_MBW_16, ep->fifosel); iowrite8(*p, fifoaddr); + if (m66592->pdata->wr0_shorted_to_wr1) + m66592_bset(m66592, M66592_MBW_16, ep->fifosel); } } } -static inline void m66592_mdfy(struct m66592 *m66592, u16 val, u16 pat, - unsigned long offset) -{ - u16 tmp; - tmp = m66592_read(m66592, offset); - tmp = tmp & (~pat); - tmp = tmp | val; - m66592_write(m66592, tmp, offset); -} - -#define m66592_bclr(m66592, val, offset) \ - m66592_mdfy(m66592, 0, val, offset) -#define m66592_bset(m66592, val, offset) \ - m66592_mdfy(m66592, val, 0, offset) - #endif /* ifndef __M66592_UDC_H__ */ diff --git a/drivers/usb/gadget/mass_storage.c b/drivers/usb/gadget/mass_storage.c index 0182242..d3eb274 100644 --- a/drivers/usb/gadget/mass_storage.c +++ b/drivers/usb/gadget/mass_storage.c @@ -169,6 +169,7 @@ static struct usb_composite_driver msg_driver = { .name = "g_mass_storage", .dev = &msg_device_desc, .iProduct = DRIVER_DESC, + .max_speed = USB_SPEED_HIGH, .needs_serial = 1, }; diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c index d9feced..8c7b747 100644 --- a/drivers/usb/gadget/multi.c +++ b/drivers/usb/gadget/multi.c @@ -351,6 +351,7 @@ static struct usb_composite_driver multi_driver = { .name = "g_multi", .dev = &device_desc, .strings = dev_strings, + .max_speed = USB_SPEED_HIGH, .unbind = __exit_p(multi_unbind), .iProduct = DRIVER_DESC, .needs_serial = 1, diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c index b1a8146..ce1ac2b 100644 --- a/drivers/usb/gadget/mv_udc_core.c +++ b/drivers/usb/gadget/mv_udc_core.c @@ -1128,6 +1128,9 @@ static int mv_udc_pullup(struct usb_gadget *gadget, int is_on) return 0; } +static int mv_udc_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int mv_udc_stop(struct usb_gadget_driver *driver); /* device controller usb_gadget_ops structure */ static const struct usb_gadget_ops mv_ops = { @@ -1139,6 +1142,8 @@ static const struct usb_gadget_ops mv_ops = { /* D+ pullup, software-controlled connect/disconnect to USB host */ .pullup = mv_udc_pullup, + .start = mv_udc_start, + .stop = mv_udc_stop, }; static void mv_udc_testmode(struct mv_udc *udc, u16 index, bool enter) @@ -1230,7 +1235,7 @@ static void stop_activity(struct mv_udc *udc, struct usb_gadget_driver *driver) } } -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int mv_udc_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct mv_udc *udc = the_controller; @@ -1270,9 +1275,8 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, return 0; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int mv_udc_stop(struct usb_gadget_driver *driver) { struct mv_udc *udc = the_controller; unsigned long flags; @@ -1296,7 +1300,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); static int udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty) @@ -1880,9 +1883,10 @@ static void gadget_release(struct device *_dev) static int mv_udc_remove(struct platform_device *dev) { struct mv_udc *udc = the_controller; - DECLARE_COMPLETION(done); + usb_del_gadget_udc(&udc->gadget); + udc->done = &done; /* free memory allocated in probe */ @@ -2074,11 +2078,12 @@ int mv_udc_probe(struct platform_device *dev) the_controller = udc; - goto out; + retval = usb_add_gadget_udc(&dev->dev, &udc->gadget); + if (!retval) + return retval; error: if (udc) mv_udc_remove(udc->dev); -out: return retval; } @@ -2126,7 +2131,7 @@ static struct platform_driver udc_driver = { #endif }, }; - +MODULE_ALIAS("platform:pxa-u2o"); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_AUTHOR("Chao Xie <chao.xie@marvell.com>"); diff --git a/drivers/usb/gadget/ncm.c b/drivers/usb/gadget/ncm.c index 99c179a..62ee508 100644 --- a/drivers/usb/gadget/ncm.c +++ b/drivers/usb/gadget/ncm.c @@ -228,6 +228,7 @@ static struct usb_composite_driver ncm_driver = { .name = "g_ncm", .dev = &device_desc, .strings = dev_strings, + .max_speed = USB_SPEED_HIGH, .unbind = __exit_p(gncm_unbind), }; diff --git a/drivers/usb/gadget/net2272.c b/drivers/usb/gadget/net2272.c new file mode 100644 index 0000000..7c7b0e1 --- /dev/null +++ b/drivers/usb/gadget/net2272.c @@ -0,0 +1,2752 @@ +/* + * Driver for PLX NET2272 USB device controller + * + * Copyright (C) 2005-2006 PLX Technology, Inc. + * Copyright (C) 2006-2011 Analog Devices, Inc. + * + * 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 + */ + +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/errno.h> +#include <linux/gpio.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/irq.h> +#include <linux/kernel.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/pci.h> +#include <linux/platform_device.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/timer.h> +#include <linux/usb.h> +#include <linux/usb/ch9.h> +#include <linux/usb/gadget.h> + +#include <asm/byteorder.h> +#include <asm/system.h> +#include <asm/unaligned.h> + +#include "net2272.h" + +#define DRIVER_DESC "PLX NET2272 USB Peripheral Controller" + +static const char driver_name[] = "net2272"; +static const char driver_vers[] = "2006 October 17/mainline"; +static const char driver_desc[] = DRIVER_DESC; + +static const char ep0name[] = "ep0"; +static const char * const ep_name[] = { + ep0name, + "ep-a", "ep-b", "ep-c", +}; + +#define DMA_ADDR_INVALID (~(dma_addr_t)0) +#ifdef CONFIG_USB_GADGET_NET2272_DMA +/* + * use_dma: the NET2272 can use an external DMA controller. + * Note that since there is no generic DMA api, some functions, + * notably request_dma, start_dma, and cancel_dma will need to be + * modified for your platform's particular dma controller. + * + * If use_dma is disabled, pio will be used instead. + */ +static int use_dma = 0; +module_param(use_dma, bool, 0644); + +/* + * dma_ep: selects the endpoint for use with dma (1=ep-a, 2=ep-b) + * The NET2272 can only use dma for a single endpoint at a time. + * At some point this could be modified to allow either endpoint + * to take control of dma as it becomes available. + * + * Note that DMA should not be used on OUT endpoints unless it can + * be guaranteed that no short packets will arrive on an IN endpoint + * while the DMA operation is pending. Otherwise the OUT DMA will + * terminate prematurely (See NET2272 Errata 630-0213-0101) + */ +static ushort dma_ep = 1; +module_param(dma_ep, ushort, 0644); + +/* + * dma_mode: net2272 dma mode setting (see LOCCTL1 definiton): + * mode 0 == Slow DREQ mode + * mode 1 == Fast DREQ mode + * mode 2 == Burst mode + */ +static ushort dma_mode = 2; +module_param(dma_mode, ushort, 0644); +#else +#define use_dma 0 +#define dma_ep 1 +#define dma_mode 2 +#endif + +/* + * fifo_mode: net2272 buffer configuration: + * mode 0 == ep-{a,b,c} 512db each + * mode 1 == ep-a 1k, ep-{b,c} 512db + * mode 2 == ep-a 1k, ep-b 1k, ep-c 512db + * mode 3 == ep-a 1k, ep-b disabled, ep-c 512db + */ +static ushort fifo_mode = 0; +module_param(fifo_mode, ushort, 0644); + +/* + * enable_suspend: When enabled, the driver will respond to + * USB suspend requests by powering down the NET2272. Otherwise, + * USB suspend requests will be ignored. This is acceptible for + * self-powered devices. For bus powered devices set this to 1. + */ +static ushort enable_suspend = 0; +module_param(enable_suspend, ushort, 0644); + +static void assert_out_naking(struct net2272_ep *ep, const char *where) +{ + u8 tmp; + +#ifndef DEBUG + return; +#endif + + tmp = net2272_ep_read(ep, EP_STAT0); + if ((tmp & (1 << NAK_OUT_PACKETS)) == 0) { + dev_dbg(ep->dev->dev, "%s %s %02x !NAK\n", + ep->ep.name, where, tmp); + net2272_ep_write(ep, EP_RSPSET, 1 << ALT_NAK_OUT_PACKETS); + } +} +#define ASSERT_OUT_NAKING(ep) assert_out_naking(ep, __func__) + +static void stop_out_naking(struct net2272_ep *ep) +{ + u8 tmp = net2272_ep_read(ep, EP_STAT0); + + if ((tmp & (1 << NAK_OUT_PACKETS)) != 0) + net2272_ep_write(ep, EP_RSPCLR, 1 << ALT_NAK_OUT_PACKETS); +} + +#define PIPEDIR(bAddress) (usb_pipein(bAddress) ? "in" : "out") + +static char *type_string(u8 bmAttributes) +{ + switch ((bmAttributes) & USB_ENDPOINT_XFERTYPE_MASK) { + case USB_ENDPOINT_XFER_BULK: return "bulk"; + case USB_ENDPOINT_XFER_ISOC: return "iso"; + case USB_ENDPOINT_XFER_INT: return "intr"; + default: return "control"; + } +} + +static char *buf_state_string(unsigned state) +{ + switch (state) { + case BUFF_FREE: return "free"; + case BUFF_VALID: return "valid"; + case BUFF_LCL: return "local"; + case BUFF_USB: return "usb"; + default: return "unknown"; + } +} + +static char *dma_mode_string(void) +{ + if (!use_dma) + return "PIO"; + switch (dma_mode) { + case 0: return "SLOW DREQ"; + case 1: return "FAST DREQ"; + case 2: return "BURST"; + default: return "invalid"; + } +} + +static void net2272_dequeue_all(struct net2272_ep *); +static int net2272_kick_dma(struct net2272_ep *, struct net2272_request *); +static int net2272_fifo_status(struct usb_ep *); + +static struct usb_ep_ops net2272_ep_ops; + +/*---------------------------------------------------------------------------*/ + +static int +net2272_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) +{ + struct net2272 *dev; + struct net2272_ep *ep; + u32 max; + u8 tmp; + unsigned long flags; + + ep = container_of(_ep, struct net2272_ep, ep); + if (!_ep || !desc || ep->desc || _ep->name == ep0name + || desc->bDescriptorType != USB_DT_ENDPOINT) + return -EINVAL; + dev = ep->dev; + if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN) + return -ESHUTDOWN; + + max = le16_to_cpu(desc->wMaxPacketSize) & 0x1fff; + + spin_lock_irqsave(&dev->lock, flags); + _ep->maxpacket = max & 0x7fff; + ep->desc = desc; + + /* net2272_ep_reset() has already been called */ + ep->stopped = 0; + ep->wedged = 0; + + /* set speed-dependent max packet */ + net2272_ep_write(ep, EP_MAXPKT0, max & 0xff); + net2272_ep_write(ep, EP_MAXPKT1, (max & 0xff00) >> 8); + + /* set type, direction, address; reset fifo counters */ + net2272_ep_write(ep, EP_STAT1, 1 << BUFFER_FLUSH); + tmp = usb_endpoint_type(desc); + if (usb_endpoint_xfer_bulk(desc)) { + /* catch some particularly blatant driver bugs */ + if ((dev->gadget.speed == USB_SPEED_HIGH && max != 512) || + (dev->gadget.speed == USB_SPEED_FULL && max > 64)) { + spin_unlock_irqrestore(&dev->lock, flags); + return -ERANGE; + } + } + ep->is_iso = usb_endpoint_xfer_isoc(desc) ? 1 : 0; + tmp <<= ENDPOINT_TYPE; + tmp |= ((desc->bEndpointAddress & 0x0f) << ENDPOINT_NUMBER); + tmp |= usb_endpoint_dir_in(desc) << ENDPOINT_DIRECTION; + tmp |= (1 << ENDPOINT_ENABLE); + + /* for OUT transfers, block the rx fifo until a read is posted */ + ep->is_in = usb_endpoint_dir_in(desc); + if (!ep->is_in) + net2272_ep_write(ep, EP_RSPSET, 1 << ALT_NAK_OUT_PACKETS); + + net2272_ep_write(ep, EP_CFG, tmp); + + /* enable irqs */ + tmp = (1 << ep->num) | net2272_read(dev, IRQENB0); + net2272_write(dev, IRQENB0, tmp); + + tmp = (1 << DATA_PACKET_RECEIVED_INTERRUPT_ENABLE) + | (1 << DATA_PACKET_TRANSMITTED_INTERRUPT_ENABLE) + | net2272_ep_read(ep, EP_IRQENB); + net2272_ep_write(ep, EP_IRQENB, tmp); + + tmp = desc->bEndpointAddress; + dev_dbg(dev->dev, "enabled %s (ep%d%s-%s) max %04x cfg %02x\n", + _ep->name, tmp & 0x0f, PIPEDIR(tmp), + type_string(desc->bmAttributes), max, + net2272_ep_read(ep, EP_CFG)); + + spin_unlock_irqrestore(&dev->lock, flags); + return 0; +} + +static void net2272_ep_reset(struct net2272_ep *ep) +{ + u8 tmp; + + ep->desc = NULL; + INIT_LIST_HEAD(&ep->queue); + + ep->ep.maxpacket = ~0; + ep->ep.ops = &net2272_ep_ops; + + /* disable irqs, endpoint */ + net2272_ep_write(ep, EP_IRQENB, 0); + + /* init to our chosen defaults, notably so that we NAK OUT + * packets until the driver queues a read. + */ + tmp = (1 << NAK_OUT_PACKETS_MODE) | (1 << ALT_NAK_OUT_PACKETS); + net2272_ep_write(ep, EP_RSPSET, tmp); + + tmp = (1 << INTERRUPT_MODE) | (1 << HIDE_STATUS_PHASE); + if (ep->num != 0) + tmp |= (1 << ENDPOINT_TOGGLE) | (1 << ENDPOINT_HALT); + + net2272_ep_write(ep, EP_RSPCLR, tmp); + + /* scrub most status bits, and flush any fifo state */ + net2272_ep_write(ep, EP_STAT0, + (1 << DATA_IN_TOKEN_INTERRUPT) + | (1 << DATA_OUT_TOKEN_INTERRUPT) + | (1 << DATA_PACKET_TRANSMITTED_INTERRUPT) + | (1 << DATA_PACKET_RECEIVED_INTERRUPT) + | (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT)); + + net2272_ep_write(ep, EP_STAT1, + (1 << TIMEOUT) + | (1 << USB_OUT_ACK_SENT) + | (1 << USB_OUT_NAK_SENT) + | (1 << USB_IN_ACK_RCVD) + | (1 << USB_IN_NAK_SENT) + | (1 << USB_STALL_SENT) + | (1 << LOCAL_OUT_ZLP) + | (1 << BUFFER_FLUSH)); + + /* fifo size is handled seperately */ +} + +static int net2272_disable(struct usb_ep *_ep) +{ + struct net2272_ep *ep; + unsigned long flags; + + ep = container_of(_ep, struct net2272_ep, ep); + if (!_ep || !ep->desc || _ep->name == ep0name) + return -EINVAL; + + spin_lock_irqsave(&ep->dev->lock, flags); + net2272_dequeue_all(ep); + net2272_ep_reset(ep); + + dev_vdbg(ep->dev->dev, "disabled %s\n", _ep->name); + + spin_unlock_irqrestore(&ep->dev->lock, flags); + return 0; +} + +/*---------------------------------------------------------------------------*/ + +static struct usb_request * +net2272_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags) +{ + struct net2272_ep *ep; + struct net2272_request *req; + + if (!_ep) + return NULL; + ep = container_of(_ep, struct net2272_ep, ep); + + req = kzalloc(sizeof(*req), gfp_flags); + if (!req) + return NULL; + + req->req.dma = DMA_ADDR_INVALID; + INIT_LIST_HEAD(&req->queue); + + return &req->req; +} + +static void +net2272_free_request(struct usb_ep *_ep, struct usb_request *_req) +{ + struct net2272_ep *ep; + struct net2272_request *req; + + ep = container_of(_ep, struct net2272_ep, ep); + if (!_ep || !_req) + return; + + req = container_of(_req, struct net2272_request, req); + WARN_ON(!list_empty(&req->queue)); + kfree(req); +} + +static void +net2272_done(struct net2272_ep *ep, struct net2272_request *req, int status) +{ + struct net2272 *dev; + unsigned stopped = ep->stopped; + + if (ep->num == 0) { + if (ep->dev->protocol_stall) { + ep->stopped = 1; + set_halt(ep); + } + allow_status(ep); + } + + list_del_init(&req->queue); + + if (req->req.status == -EINPROGRESS) + req->req.status = status; + else + status = req->req.status; + + dev = ep->dev; + if (use_dma && req->mapped) { + dma_unmap_single(dev->dev, req->req.dma, req->req.length, + ep->is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE); + req->req.dma = DMA_ADDR_INVALID; + req->mapped = 0; + } + + if (status && status != -ESHUTDOWN) + dev_vdbg(dev->dev, "complete %s req %p stat %d len %u/%u buf %p\n", + ep->ep.name, &req->req, status, + req->req.actual, req->req.length, req->req.buf); + + /* don't modify queue heads during completion callback */ + ep->stopped = 1; + spin_unlock(&dev->lock); + req->req.complete(&ep->ep, &req->req); + spin_lock(&dev->lock); + ep->stopped = stopped; +} + +static int +net2272_write_packet(struct net2272_ep *ep, u8 *buf, + struct net2272_request *req, unsigned max) +{ + u16 __iomem *ep_data = net2272_reg_addr(ep->dev, EP_DATA); + u16 *bufp; + unsigned length, count; + u8 tmp; + + length = min(req->req.length - req->req.actual, max); + req->req.actual += length; + + dev_vdbg(ep->dev->dev, "write packet %s req %p max %u len %u avail %u\n", + ep->ep.name, req, max, length, + (net2272_ep_read(ep, EP_AVAIL1) << 8) | net2272_ep_read(ep, EP_AVAIL0)); + + count = length; + bufp = (u16 *)buf; + + while (likely(count >= 2)) { + /* no byte-swap required; chip endian set during init */ + writew(*bufp++, ep_data); + count -= 2; + } + buf = (u8 *)bufp; + + /* write final byte by placing the NET2272 into 8-bit mode */ + if (unlikely(count)) { + tmp = net2272_read(ep->dev, LOCCTL); + net2272_write(ep->dev, LOCCTL, tmp & ~(1 << DATA_WIDTH)); + writeb(*buf, ep_data); + net2272_write(ep->dev, LOCCTL, tmp); + } + return length; +} + +/* returns: 0: still running, 1: completed, negative: errno */ +static int +net2272_write_fifo(struct net2272_ep *ep, struct net2272_request *req) +{ + u8 *buf; + unsigned count, max; + int status; + + dev_vdbg(ep->dev->dev, "write_fifo %s actual %d len %d\n", + ep->ep.name, req->req.actual, req->req.length); + + /* + * Keep loading the endpoint until the final packet is loaded, + * or the endpoint buffer is full. + */ + top: + /* + * Clear interrupt status + * - Packet Transmitted interrupt will become set again when the + * host successfully takes another packet + */ + net2272_ep_write(ep, EP_STAT0, (1 << DATA_PACKET_TRANSMITTED_INTERRUPT)); + while (!(net2272_ep_read(ep, EP_STAT0) & (1 << BUFFER_FULL))) { + buf = req->req.buf + req->req.actual; + prefetch(buf); + + /* force pagesel */ + net2272_ep_read(ep, EP_STAT0); + + max = (net2272_ep_read(ep, EP_AVAIL1) << 8) | + (net2272_ep_read(ep, EP_AVAIL0)); + + if (max < ep->ep.maxpacket) + max = (net2272_ep_read(ep, EP_AVAIL1) << 8) + | (net2272_ep_read(ep, EP_AVAIL0)); + + count = net2272_write_packet(ep, buf, req, max); + /* see if we are done */ + if (req->req.length == req->req.actual) { + /* validate short or zlp packet */ + if (count < ep->ep.maxpacket) + set_fifo_bytecount(ep, 0); + net2272_done(ep, req, 0); + + if (!list_empty(&ep->queue)) { + req = list_entry(ep->queue.next, + struct net2272_request, + queue); + status = net2272_kick_dma(ep, req); + + if (status < 0) + if ((net2272_ep_read(ep, EP_STAT0) + & (1 << BUFFER_EMPTY))) + goto top; + } + return 1; + } + net2272_ep_write(ep, EP_STAT0, (1 << DATA_PACKET_TRANSMITTED_INTERRUPT)); + } + return 0; +} + +static void +net2272_out_flush(struct net2272_ep *ep) +{ + ASSERT_OUT_NAKING(ep); + + net2272_ep_write(ep, EP_STAT0, (1 << DATA_OUT_TOKEN_INTERRUPT) + | (1 << DATA_PACKET_RECEIVED_INTERRUPT)); + net2272_ep_write(ep, EP_STAT1, 1 << BUFFER_FLUSH); +} + +static int +net2272_read_packet(struct net2272_ep *ep, u8 *buf, + struct net2272_request *req, unsigned avail) +{ + u16 __iomem *ep_data = net2272_reg_addr(ep->dev, EP_DATA); + unsigned is_short; + u16 *bufp; + + req->req.actual += avail; + + dev_vdbg(ep->dev->dev, "read packet %s req %p len %u avail %u\n", + ep->ep.name, req, avail, + (net2272_ep_read(ep, EP_AVAIL1) << 8) | net2272_ep_read(ep, EP_AVAIL0)); + + is_short = (avail < ep->ep.maxpacket); + + if (unlikely(avail == 0)) { + /* remove any zlp from the buffer */ + (void)readw(ep_data); + return is_short; + } + + /* Ensure we get the final byte */ + if (unlikely(avail % 2)) + avail++; + bufp = (u16 *)buf; + + do { + *bufp++ = readw(ep_data); + avail -= 2; + } while (avail); + + /* + * To avoid false endpoint available race condition must read + * ep stat0 twice in the case of a short transfer + */ + if (net2272_ep_read(ep, EP_STAT0) & (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT)) + net2272_ep_read(ep, EP_STAT0); + + return is_short; +} + +static int +net2272_read_fifo(struct net2272_ep *ep, struct net2272_request *req) +{ + u8 *buf; + unsigned is_short; + int count; + int tmp; + int cleanup = 0; + int status = -1; + + dev_vdbg(ep->dev->dev, "read_fifo %s actual %d len %d\n", + ep->ep.name, req->req.actual, req->req.length); + + top: + do { + buf = req->req.buf + req->req.actual; + prefetchw(buf); + + count = (net2272_ep_read(ep, EP_AVAIL1) << 8) + | net2272_ep_read(ep, EP_AVAIL0); + + net2272_ep_write(ep, EP_STAT0, + (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT) | + (1 << DATA_PACKET_RECEIVED_INTERRUPT)); + + tmp = req->req.length - req->req.actual; + + if (count > tmp) { + if ((tmp % ep->ep.maxpacket) != 0) { + dev_err(ep->dev->dev, + "%s out fifo %d bytes, expected %d\n", + ep->ep.name, count, tmp); + cleanup = 1; + } + count = (tmp > 0) ? tmp : 0; + } + + is_short = net2272_read_packet(ep, buf, req, count); + + /* completion */ + if (unlikely(cleanup || is_short || + ((req->req.actual == req->req.length) + && !req->req.zero))) { + + if (cleanup) { + net2272_out_flush(ep); + net2272_done(ep, req, -EOVERFLOW); + } else + net2272_done(ep, req, 0); + + /* re-initialize endpoint transfer registers + * otherwise they may result in erroneous pre-validation + * for subsequent control reads + */ + if (unlikely(ep->num == 0)) { + net2272_ep_write(ep, EP_TRANSFER2, 0); + net2272_ep_write(ep, EP_TRANSFER1, 0); + net2272_ep_write(ep, EP_TRANSFER0, 0); + } + + if (!list_empty(&ep->queue)) { + req = list_entry(ep->queue.next, + struct net2272_request, queue); + status = net2272_kick_dma(ep, req); + if ((status < 0) && + !(net2272_ep_read(ep, EP_STAT0) & (1 << BUFFER_EMPTY))) + goto top; + } + return 1; + } + } while (!(net2272_ep_read(ep, EP_STAT0) & (1 << BUFFER_EMPTY))); + + return 0; +} + +static void +net2272_pio_advance(struct net2272_ep *ep) +{ + struct net2272_request *req; + + if (unlikely(list_empty(&ep->queue))) + return; + + req = list_entry(ep->queue.next, struct net2272_request, queue); + (ep->is_in ? net2272_write_fifo : net2272_read_fifo)(ep, req); +} + +/* returns 0 on success, else negative errno */ +static int +net2272_request_dma(struct net2272 *dev, unsigned ep, u32 buf, + unsigned len, unsigned dir) +{ + dev_vdbg(dev->dev, "request_dma ep %d buf %08x len %d dir %d\n", + ep, buf, len, dir); + + /* The NET2272 only supports a single dma channel */ + if (dev->dma_busy) + return -EBUSY; + /* + * EP_TRANSFER (used to determine the number of bytes received + * in an OUT transfer) is 24 bits wide; don't ask for more than that. + */ + if ((dir == 1) && (len > 0x1000000)) + return -EINVAL; + + dev->dma_busy = 1; + + /* initialize platform's dma */ +#ifdef CONFIG_PCI + /* NET2272 addr, buffer addr, length, etc. */ + switch (dev->dev_id) { + case PCI_DEVICE_ID_RDK1: + /* Setup PLX 9054 DMA mode */ + writel((1 << LOCAL_BUS_WIDTH) | + (1 << TA_READY_INPUT_ENABLE) | + (0 << LOCAL_BURST_ENABLE) | + (1 << DONE_INTERRUPT_ENABLE) | + (1 << LOCAL_ADDRESSING_MODE) | + (1 << DEMAND_MODE) | + (1 << DMA_EOT_ENABLE) | + (1 << FAST_SLOW_TERMINATE_MODE_SELECT) | + (1 << DMA_CHANNEL_INTERRUPT_SELECT), + dev->rdk1.plx9054_base_addr + DMAMODE0); + + writel(0x100000, dev->rdk1.plx9054_base_addr + DMALADR0); + writel(buf, dev->rdk1.plx9054_base_addr + DMAPADR0); + writel(len, dev->rdk1.plx9054_base_addr + DMASIZ0); + writel((dir << DIRECTION_OF_TRANSFER) | + (1 << INTERRUPT_AFTER_TERMINAL_COUNT), + dev->rdk1.plx9054_base_addr + DMADPR0); + writel((1 << LOCAL_DMA_CHANNEL_0_INTERRUPT_ENABLE) | + readl(dev->rdk1.plx9054_base_addr + INTCSR), + dev->rdk1.plx9054_base_addr + INTCSR); + + break; + } +#endif + + net2272_write(dev, DMAREQ, + (0 << DMA_BUFFER_VALID) | + (1 << DMA_REQUEST_ENABLE) | + (1 << DMA_CONTROL_DACK) | + (dev->dma_eot_polarity << EOT_POLARITY) | + (dev->dma_dack_polarity << DACK_POLARITY) | + (dev->dma_dreq_polarity << DREQ_POLARITY) | + ((ep >> 1) << DMA_ENDPOINT_SELECT)); + + (void) net2272_read(dev, SCRATCH); + + return 0; +} + +static void +net2272_start_dma(struct net2272 *dev) +{ + /* start platform's dma controller */ +#ifdef CONFIG_PCI + switch (dev->dev_id) { + case PCI_DEVICE_ID_RDK1: + writeb((1 << CHANNEL_ENABLE) | (1 << CHANNEL_START), + dev->rdk1.plx9054_base_addr + DMACSR0); + break; + } +#endif +} + +/* returns 0 on success, else negative errno */ +static int +net2272_kick_dma(struct net2272_ep *ep, struct net2272_request *req) +{ + unsigned size; + u8 tmp; + + if (!use_dma || (ep->num < 1) || (ep->num > 2) || !ep->dma) + return -EINVAL; + + /* don't use dma for odd-length transfers + * otherwise, we'd need to deal with the last byte with pio + */ + if (req->req.length & 1) + return -EINVAL; + + dev_vdbg(ep->dev->dev, "kick_dma %s req %p dma %08llx\n", + ep->ep.name, req, (unsigned long long) req->req.dma); + + net2272_ep_write(ep, EP_RSPSET, 1 << ALT_NAK_OUT_PACKETS); + + /* The NET2272 can only use DMA on one endpoint at a time */ + if (ep->dev->dma_busy) + return -EBUSY; + + /* Make sure we only DMA an even number of bytes (we'll use + * pio to complete the transfer) + */ + size = req->req.length; + size &= ~1; + + /* device-to-host transfer */ + if (ep->is_in) { + /* initialize platform's dma controller */ + if (net2272_request_dma(ep->dev, ep->num, req->req.dma, size, 0)) + /* unable to obtain DMA channel; return error and use pio mode */ + return -EBUSY; + req->req.actual += size; + + /* host-to-device transfer */ + } else { + tmp = net2272_ep_read(ep, EP_STAT0); + + /* initialize platform's dma controller */ + if (net2272_request_dma(ep->dev, ep->num, req->req.dma, size, 1)) + /* unable to obtain DMA channel; return error and use pio mode */ + return -EBUSY; + + if (!(tmp & (1 << BUFFER_EMPTY))) + ep->not_empty = 1; + else + ep->not_empty = 0; + + + /* allow the endpoint's buffer to fill */ + net2272_ep_write(ep, EP_RSPCLR, 1 << ALT_NAK_OUT_PACKETS); + + /* this transfer completed and data's already in the fifo + * return error so pio gets used. + */ + if (tmp & (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT)) { + + /* deassert dreq */ + net2272_write(ep->dev, DMAREQ, + (0 << DMA_BUFFER_VALID) | + (0 << DMA_REQUEST_ENABLE) | + (1 << DMA_CONTROL_DACK) | + (ep->dev->dma_eot_polarity << EOT_POLARITY) | + (ep->dev->dma_dack_polarity << DACK_POLARITY) | + (ep->dev->dma_dreq_polarity << DREQ_POLARITY) | + ((ep->num >> 1) << DMA_ENDPOINT_SELECT)); + + return -EBUSY; + } + } + + /* Don't use per-packet interrupts: use dma interrupts only */ + net2272_ep_write(ep, EP_IRQENB, 0); + + net2272_start_dma(ep->dev); + + return 0; +} + +static void net2272_cancel_dma(struct net2272 *dev) +{ +#ifdef CONFIG_PCI + switch (dev->dev_id) { + case PCI_DEVICE_ID_RDK1: + writeb(0, dev->rdk1.plx9054_base_addr + DMACSR0); + writeb(1 << CHANNEL_ABORT, dev->rdk1.plx9054_base_addr + DMACSR0); + while (!(readb(dev->rdk1.plx9054_base_addr + DMACSR0) & + (1 << CHANNEL_DONE))) + continue; /* wait for dma to stabalize */ + + /* dma abort generates an interrupt */ + writeb(1 << CHANNEL_CLEAR_INTERRUPT, + dev->rdk1.plx9054_base_addr + DMACSR0); + break; + } +#endif + + dev->dma_busy = 0; +} + +/*---------------------------------------------------------------------------*/ + +static int +net2272_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) +{ + struct net2272_request *req; + struct net2272_ep *ep; + struct net2272 *dev; + unsigned long flags; + int status = -1; + u8 s; + + req = container_of(_req, struct net2272_request, req); + if (!_req || !_req->complete || !_req->buf + || !list_empty(&req->queue)) + return -EINVAL; + ep = container_of(_ep, struct net2272_ep, ep); + if (!_ep || (!ep->desc && ep->num != 0)) + return -EINVAL; + dev = ep->dev; + if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN) + return -ESHUTDOWN; + + /* set up dma mapping in case the caller didn't */ + if (use_dma && ep->dma && _req->dma == DMA_ADDR_INVALID) { + _req->dma = dma_map_single(dev->dev, _req->buf, _req->length, + ep->is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE); + req->mapped = 1; + } + + dev_vdbg(dev->dev, "%s queue req %p, len %d buf %p dma %08llx %s\n", + _ep->name, _req, _req->length, _req->buf, + (unsigned long long) _req->dma, _req->zero ? "zero" : "!zero"); + + spin_lock_irqsave(&dev->lock, flags); + + _req->status = -EINPROGRESS; + _req->actual = 0; + + /* kickstart this i/o queue? */ + if (list_empty(&ep->queue) && !ep->stopped) { + /* maybe there's no control data, just status ack */ + if (ep->num == 0 && _req->length == 0) { + net2272_done(ep, req, 0); + dev_vdbg(dev->dev, "%s status ack\n", ep->ep.name); + goto done; + } + + /* Return zlp, don't let it block subsequent packets */ + s = net2272_ep_read(ep, EP_STAT0); + if (s & (1 << BUFFER_EMPTY)) { + /* Buffer is empty check for a blocking zlp, handle it */ + if ((s & (1 << NAK_OUT_PACKETS)) && + net2272_ep_read(ep, EP_STAT1) & (1 << LOCAL_OUT_ZLP)) { + dev_dbg(dev->dev, "WARNING: returning ZLP short packet termination!\n"); + /* + * Request is going to terminate with a short packet ... + * hope the client is ready for it! + */ + status = net2272_read_fifo(ep, req); + /* clear short packet naking */ + net2272_ep_write(ep, EP_STAT0, (1 << NAK_OUT_PACKETS)); + goto done; + } + } + + /* try dma first */ + status = net2272_kick_dma(ep, req); + + if (status < 0) { + /* dma failed (most likely in use by another endpoint) + * fallback to pio + */ + status = 0; + + if (ep->is_in) + status = net2272_write_fifo(ep, req); + else { + s = net2272_ep_read(ep, EP_STAT0); + if ((s & (1 << BUFFER_EMPTY)) == 0) + status = net2272_read_fifo(ep, req); + } + + if (unlikely(status != 0)) { + if (status > 0) + status = 0; + req = NULL; + } + } + } + if (likely(req != 0)) + list_add_tail(&req->queue, &ep->queue); + + if (likely(!list_empty(&ep->queue))) + net2272_ep_write(ep, EP_RSPCLR, 1 << ALT_NAK_OUT_PACKETS); + done: + spin_unlock_irqrestore(&dev->lock, flags); + + return 0; +} + +/* dequeue ALL requests */ +static void +net2272_dequeue_all(struct net2272_ep *ep) +{ + struct net2272_request *req; + + /* called with spinlock held */ + ep->stopped = 1; + + while (!list_empty(&ep->queue)) { + req = list_entry(ep->queue.next, + struct net2272_request, + queue); + net2272_done(ep, req, -ESHUTDOWN); + } +} + +/* dequeue JUST ONE request */ +static int +net2272_dequeue(struct usb_ep *_ep, struct usb_request *_req) +{ + struct net2272_ep *ep; + struct net2272_request *req; + unsigned long flags; + int stopped; + + ep = container_of(_ep, struct net2272_ep, ep); + if (!_ep || (!ep->desc && ep->num != 0) || !_req) + return -EINVAL; + + spin_lock_irqsave(&ep->dev->lock, flags); + stopped = ep->stopped; + ep->stopped = 1; + + /* make sure it's still queued on this endpoint */ + list_for_each_entry(req, &ep->queue, queue) { + if (&req->req == _req) + break; + } + if (&req->req != _req) { + spin_unlock_irqrestore(&ep->dev->lock, flags); + return -EINVAL; + } + + /* queue head may be partially complete */ + if (ep->queue.next == &req->queue) { + dev_dbg(ep->dev->dev, "unlink (%s) pio\n", _ep->name); + net2272_done(ep, req, -ECONNRESET); + } + req = NULL; + ep->stopped = stopped; + + spin_unlock_irqrestore(&ep->dev->lock, flags); + return 0; +} + +/*---------------------------------------------------------------------------*/ + +static int +net2272_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged) +{ + struct net2272_ep *ep; + unsigned long flags; + int ret = 0; + + ep = container_of(_ep, struct net2272_ep, ep); + if (!_ep || (!ep->desc && ep->num != 0)) + return -EINVAL; + if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN) + return -ESHUTDOWN; + if (ep->desc /* not ep0 */ && usb_endpoint_xfer_isoc(ep->desc)) + return -EINVAL; + + spin_lock_irqsave(&ep->dev->lock, flags); + if (!list_empty(&ep->queue)) + ret = -EAGAIN; + else if (ep->is_in && value && net2272_fifo_status(_ep) != 0) + ret = -EAGAIN; + else { + dev_vdbg(ep->dev->dev, "%s %s %s\n", _ep->name, + value ? "set" : "clear", + wedged ? "wedge" : "halt"); + /* set/clear */ + if (value) { + if (ep->num == 0) + ep->dev->protocol_stall = 1; + else + set_halt(ep); + if (wedged) + ep->wedged = 1; + } else { + clear_halt(ep); + ep->wedged = 0; + } + } + spin_unlock_irqrestore(&ep->dev->lock, flags); + + return ret; +} + +static int +net2272_set_halt(struct usb_ep *_ep, int value) +{ + return net2272_set_halt_and_wedge(_ep, value, 0); +} + +static int +net2272_set_wedge(struct usb_ep *_ep) +{ + if (!_ep || _ep->name == ep0name) + return -EINVAL; + return net2272_set_halt_and_wedge(_ep, 1, 1); +} + +static int +net2272_fifo_status(struct usb_ep *_ep) +{ + struct net2272_ep *ep; + u16 avail; + + ep = container_of(_ep, struct net2272_ep, ep); + if (!_ep || (!ep->desc && ep->num != 0)) + return -ENODEV; + if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN) + return -ESHUTDOWN; + + avail = net2272_ep_read(ep, EP_AVAIL1) << 8; + avail |= net2272_ep_read(ep, EP_AVAIL0); + if (avail > ep->fifo_size) + return -EOVERFLOW; + if (ep->is_in) + avail = ep->fifo_size - avail; + return avail; +} + +static void +net2272_fifo_flush(struct usb_ep *_ep) +{ + struct net2272_ep *ep; + + ep = container_of(_ep, struct net2272_ep, ep); + if (!_ep || (!ep->desc && ep->num != 0)) + return; + if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN) + return; + + net2272_ep_write(ep, EP_STAT1, 1 << BUFFER_FLUSH); +} + +static struct usb_ep_ops net2272_ep_ops = { + .enable = net2272_enable, + .disable = net2272_disable, + + .alloc_request = net2272_alloc_request, + .free_request = net2272_free_request, + + .queue = net2272_queue, + .dequeue = net2272_dequeue, + + .set_halt = net2272_set_halt, + .set_wedge = net2272_set_wedge, + .fifo_status = net2272_fifo_status, + .fifo_flush = net2272_fifo_flush, +}; + +/*---------------------------------------------------------------------------*/ + +static int +net2272_get_frame(struct usb_gadget *_gadget) +{ + struct net2272 *dev; + unsigned long flags; + u16 ret; + + if (!_gadget) + return -ENODEV; + dev = container_of(_gadget, struct net2272, gadget); + spin_lock_irqsave(&dev->lock, flags); + + ret = net2272_read(dev, FRAME1) << 8; + ret |= net2272_read(dev, FRAME0); + + spin_unlock_irqrestore(&dev->lock, flags); + return ret; +} + +static int +net2272_wakeup(struct usb_gadget *_gadget) +{ + struct net2272 *dev; + u8 tmp; + unsigned long flags; + + if (!_gadget) + return 0; + dev = container_of(_gadget, struct net2272, gadget); + + spin_lock_irqsave(&dev->lock, flags); + tmp = net2272_read(dev, USBCTL0); + if (tmp & (1 << IO_WAKEUP_ENABLE)) + net2272_write(dev, USBCTL1, (1 << GENERATE_RESUME)); + + spin_unlock_irqrestore(&dev->lock, flags); + + return 0; +} + +static int +net2272_set_selfpowered(struct usb_gadget *_gadget, int value) +{ + struct net2272 *dev; + + if (!_gadget) + return -ENODEV; + dev = container_of(_gadget, struct net2272, gadget); + + dev->is_selfpowered = value; + + return 0; +} + +static int +net2272_pullup(struct usb_gadget *_gadget, int is_on) +{ + struct net2272 *dev; + u8 tmp; + unsigned long flags; + + if (!_gadget) + return -ENODEV; + dev = container_of(_gadget, struct net2272, gadget); + + spin_lock_irqsave(&dev->lock, flags); + tmp = net2272_read(dev, USBCTL0); + dev->softconnect = (is_on != 0); + if (is_on) + tmp |= (1 << USB_DETECT_ENABLE); + else + tmp &= ~(1 << USB_DETECT_ENABLE); + net2272_write(dev, USBCTL0, tmp); + spin_unlock_irqrestore(&dev->lock, flags); + + return 0; +} + +static int net2272_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int net2272_stop(struct usb_gadget_driver *driver); + +static const struct usb_gadget_ops net2272_ops = { + .get_frame = net2272_get_frame, + .wakeup = net2272_wakeup, + .set_selfpowered = net2272_set_selfpowered, + .pullup = net2272_pullup, + .start = net2272_start, + .stop = net2272_stop, +}; + +/*---------------------------------------------------------------------------*/ + +static ssize_t +net2272_show_registers(struct device *_dev, struct device_attribute *attr, char *buf) +{ + struct net2272 *dev; + char *next; + unsigned size, t; + unsigned long flags; + u8 t1, t2; + int i; + const char *s; + + dev = dev_get_drvdata(_dev); + next = buf; + size = PAGE_SIZE; + spin_lock_irqsave(&dev->lock, flags); + + if (dev->driver) + s = dev->driver->driver.name; + else + s = "(none)"; + + /* Main Control Registers */ + t = scnprintf(next, size, "%s version %s," + "chiprev %02x, locctl %02x\n" + "irqenb0 %02x irqenb1 %02x " + "irqstat0 %02x irqstat1 %02x\n", + driver_name, driver_vers, dev->chiprev, + net2272_read(dev, LOCCTL), + net2272_read(dev, IRQENB0), + net2272_read(dev, IRQENB1), + net2272_read(dev, IRQSTAT0), + net2272_read(dev, IRQSTAT1)); + size -= t; + next += t; + + /* DMA */ + t1 = net2272_read(dev, DMAREQ); + t = scnprintf(next, size, "\ndmareq %02x: %s %s%s%s%s\n", + t1, ep_name[(t1 & 0x01) + 1], + t1 & (1 << DMA_CONTROL_DACK) ? "dack " : "", + t1 & (1 << DMA_REQUEST_ENABLE) ? "reqenb " : "", + t1 & (1 << DMA_REQUEST) ? "req " : "", + t1 & (1 << DMA_BUFFER_VALID) ? "valid " : ""); + size -= t; + next += t; + + /* USB Control Registers */ + t1 = net2272_read(dev, USBCTL1); + if (t1 & (1 << VBUS_PIN)) { + if (t1 & (1 << USB_HIGH_SPEED)) + s = "high speed"; + else if (dev->gadget.speed == USB_SPEED_UNKNOWN) + s = "powered"; + else + s = "full speed"; + } else + s = "not attached"; + t = scnprintf(next, size, + "usbctl0 %02x usbctl1 %02x addr 0x%02x (%s)\n", + net2272_read(dev, USBCTL0), t1, + net2272_read(dev, OURADDR), s); + size -= t; + next += t; + + /* Endpoint Registers */ + for (i = 0; i < 4; ++i) { + struct net2272_ep *ep; + + ep = &dev->ep[i]; + if (i && !ep->desc) + continue; + + t1 = net2272_ep_read(ep, EP_CFG); + t2 = net2272_ep_read(ep, EP_RSPSET); + t = scnprintf(next, size, + "\n%s\tcfg %02x rsp (%02x) %s%s%s%s%s%s%s%s" + "irqenb %02x\n", + ep->ep.name, t1, t2, + (t2 & (1 << ALT_NAK_OUT_PACKETS)) ? "NAK " : "", + (t2 & (1 << HIDE_STATUS_PHASE)) ? "hide " : "", + (t2 & (1 << AUTOVALIDATE)) ? "auto " : "", + (t2 & (1 << INTERRUPT_MODE)) ? "interrupt " : "", + (t2 & (1 << CONTROL_STATUS_PHASE_HANDSHAKE)) ? "status " : "", + (t2 & (1 << NAK_OUT_PACKETS_MODE)) ? "NAKmode " : "", + (t2 & (1 << ENDPOINT_TOGGLE)) ? "DATA1 " : "DATA0 ", + (t2 & (1 << ENDPOINT_HALT)) ? "HALT " : "", + net2272_ep_read(ep, EP_IRQENB)); + size -= t; + next += t; + + t = scnprintf(next, size, + "\tstat0 %02x stat1 %02x avail %04x " + "(ep%d%s-%s)%s\n", + net2272_ep_read(ep, EP_STAT0), + net2272_ep_read(ep, EP_STAT1), + (net2272_ep_read(ep, EP_AVAIL1) << 8) | net2272_ep_read(ep, EP_AVAIL0), + t1 & 0x0f, + ep->is_in ? "in" : "out", + type_string(t1 >> 5), + ep->stopped ? "*" : ""); + size -= t; + next += t; + + t = scnprintf(next, size, + "\tep_transfer %06x\n", + ((net2272_ep_read(ep, EP_TRANSFER2) & 0xff) << 16) | + ((net2272_ep_read(ep, EP_TRANSFER1) & 0xff) << 8) | + ((net2272_ep_read(ep, EP_TRANSFER0) & 0xff))); + size -= t; + next += t; + + t1 = net2272_ep_read(ep, EP_BUFF_STATES) & 0x03; + t2 = (net2272_ep_read(ep, EP_BUFF_STATES) >> 2) & 0x03; + t = scnprintf(next, size, + "\tbuf-a %s buf-b %s\n", + buf_state_string(t1), + buf_state_string(t2)); + size -= t; + next += t; + } + + spin_unlock_irqrestore(&dev->lock, flags); + + return PAGE_SIZE - size; +} +static DEVICE_ATTR(registers, S_IRUGO, net2272_show_registers, NULL); + +/*---------------------------------------------------------------------------*/ + +static void +net2272_set_fifo_mode(struct net2272 *dev, int mode) +{ + u8 tmp; + + tmp = net2272_read(dev, LOCCTL) & 0x3f; + tmp |= (mode << 6); + net2272_write(dev, LOCCTL, tmp); + + INIT_LIST_HEAD(&dev->gadget.ep_list); + + /* always ep-a, ep-c ... maybe not ep-b */ + list_add_tail(&dev->ep[1].ep.ep_list, &dev->gadget.ep_list); + + switch (mode) { + case 0: + list_add_tail(&dev->ep[2].ep.ep_list, &dev->gadget.ep_list); + dev->ep[1].fifo_size = dev->ep[2].fifo_size = 512; + break; + case 1: + list_add_tail(&dev->ep[2].ep.ep_list, &dev->gadget.ep_list); + dev->ep[1].fifo_size = 1024; + dev->ep[2].fifo_size = 512; + break; + case 2: + list_add_tail(&dev->ep[2].ep.ep_list, &dev->gadget.ep_list); + dev->ep[1].fifo_size = dev->ep[2].fifo_size = 1024; + break; + case 3: + dev->ep[1].fifo_size = 1024; + break; + } + + /* ep-c is always 2 512 byte buffers */ + list_add_tail(&dev->ep[3].ep.ep_list, &dev->gadget.ep_list); + dev->ep[3].fifo_size = 512; +} + +/*---------------------------------------------------------------------------*/ + +static struct net2272 *the_controller; + +static void +net2272_usb_reset(struct net2272 *dev) +{ + dev->gadget.speed = USB_SPEED_UNKNOWN; + + net2272_cancel_dma(dev); + + net2272_write(dev, IRQENB0, 0); + net2272_write(dev, IRQENB1, 0); + + /* clear irq state */ + net2272_write(dev, IRQSTAT0, 0xff); + net2272_write(dev, IRQSTAT1, ~(1 << SUSPEND_REQUEST_INTERRUPT)); + + net2272_write(dev, DMAREQ, + (0 << DMA_BUFFER_VALID) | + (0 << DMA_REQUEST_ENABLE) | + (1 << DMA_CONTROL_DACK) | + (dev->dma_eot_polarity << EOT_POLARITY) | + (dev->dma_dack_polarity << DACK_POLARITY) | + (dev->dma_dreq_polarity << DREQ_POLARITY) | + ((dma_ep >> 1) << DMA_ENDPOINT_SELECT)); + + net2272_cancel_dma(dev); + net2272_set_fifo_mode(dev, (fifo_mode <= 3) ? fifo_mode : 0); + + /* Set the NET2272 ep fifo data width to 16-bit mode and for correct byte swapping + * note that the higher level gadget drivers are expected to convert data to little endian. + * Enable byte swap for your local bus/cpu if needed by setting BYTE_SWAP in LOCCTL here + */ + net2272_write(dev, LOCCTL, net2272_read(dev, LOCCTL) | (1 << DATA_WIDTH)); + net2272_write(dev, LOCCTL1, (dma_mode << DMA_MODE)); +} + +static void +net2272_usb_reinit(struct net2272 *dev) +{ + int i; + + /* basic endpoint init */ + for (i = 0; i < 4; ++i) { + struct net2272_ep *ep = &dev->ep[i]; + + ep->ep.name = ep_name[i]; + ep->dev = dev; + ep->num = i; + ep->not_empty = 0; + + if (use_dma && ep->num == dma_ep) + ep->dma = 1; + + if (i > 0 && i <= 3) + ep->fifo_size = 512; + else + ep->fifo_size = 64; + net2272_ep_reset(ep); + } + dev->ep[0].ep.maxpacket = 64; + + dev->gadget.ep0 = &dev->ep[0].ep; + dev->ep[0].stopped = 0; + INIT_LIST_HEAD(&dev->gadget.ep0->ep_list); +} + +static void +net2272_ep0_start(struct net2272 *dev) +{ + struct net2272_ep *ep0 = &dev->ep[0]; + + net2272_ep_write(ep0, EP_RSPSET, + (1 << NAK_OUT_PACKETS_MODE) | + (1 << ALT_NAK_OUT_PACKETS)); + net2272_ep_write(ep0, EP_RSPCLR, + (1 << HIDE_STATUS_PHASE) | + (1 << CONTROL_STATUS_PHASE_HANDSHAKE)); + net2272_write(dev, USBCTL0, + (dev->softconnect << USB_DETECT_ENABLE) | + (1 << USB_ROOT_PORT_WAKEUP_ENABLE) | + (1 << IO_WAKEUP_ENABLE)); + net2272_write(dev, IRQENB0, + (1 << SETUP_PACKET_INTERRUPT_ENABLE) | + (1 << ENDPOINT_0_INTERRUPT_ENABLE) | + (1 << DMA_DONE_INTERRUPT_ENABLE)); + net2272_write(dev, IRQENB1, + (1 << VBUS_INTERRUPT_ENABLE) | + (1 << ROOT_PORT_RESET_INTERRUPT_ENABLE) | + (1 << SUSPEND_REQUEST_CHANGE_INTERRUPT_ENABLE)); +} + +/* when a driver is successfully registered, it will receive + * control requests including set_configuration(), which enables + * non-control requests. then usb traffic follows until a + * disconnect is reported. then a host may connect again, or + * the driver might get unbound. + */ +static int net2272_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)) +{ + struct net2272 *dev = the_controller; + int ret; + unsigned i; + + if (!driver || !bind || !driver->unbind || !driver->setup || + driver->speed != USB_SPEED_HIGH) + return -EINVAL; + if (!dev) + return -ENODEV; + if (dev->driver) + return -EBUSY; + + for (i = 0; i < 4; ++i) + dev->ep[i].irqs = 0; + /* hook up the driver ... */ + dev->softconnect = 1; + driver->driver.bus = NULL; + dev->driver = driver; + dev->gadget.dev.driver = &driver->driver; + ret = bind(&dev->gadget); + if (ret) { + dev_dbg(dev->dev, "bind to driver %s --> %d\n", + driver->driver.name, ret); + dev->driver = NULL; + dev->gadget.dev.driver = NULL; + return ret; + } + + /* ... then enable host detection and ep0; and we're ready + * for set_configuration as well as eventual disconnect. + */ + net2272_ep0_start(dev); + + dev_dbg(dev->dev, "%s ready\n", driver->driver.name); + + return 0; +} + +static void +stop_activity(struct net2272 *dev, struct usb_gadget_driver *driver) +{ + int i; + + /* don't disconnect if it's not connected */ + if (dev->gadget.speed == USB_SPEED_UNKNOWN) + driver = NULL; + + /* stop hardware; prevent new request submissions; + * and kill any outstanding requests. + */ + net2272_usb_reset(dev); + for (i = 0; i < 4; ++i) + net2272_dequeue_all(&dev->ep[i]); + + /* report disconnect; the driver is already quiesced */ + if (driver) { + spin_unlock(&dev->lock); + driver->disconnect(&dev->gadget); + spin_lock(&dev->lock); + + } + net2272_usb_reinit(dev); +} + +static int net2272_stop(struct usb_gadget_driver *driver) +{ + struct net2272 *dev = the_controller; + unsigned long flags; + + if (!dev) + return -ENODEV; + if (!driver || driver != dev->driver) + return -EINVAL; + + spin_lock_irqsave(&dev->lock, flags); + stop_activity(dev, driver); + spin_unlock_irqrestore(&dev->lock, flags); + + net2272_pullup(&dev->gadget, 0); + + driver->unbind(&dev->gadget); + dev->gadget.dev.driver = NULL; + dev->driver = NULL; + + dev_dbg(dev->dev, "unregistered driver '%s'\n", driver->driver.name); + return 0; +} + +/*---------------------------------------------------------------------------*/ +/* handle ep-a/ep-b dma completions */ +static void +net2272_handle_dma(struct net2272_ep *ep) +{ + struct net2272_request *req; + unsigned len; + int status; + + if (!list_empty(&ep->queue)) + req = list_entry(ep->queue.next, + struct net2272_request, queue); + else + req = NULL; + + dev_vdbg(ep->dev->dev, "handle_dma %s req %p\n", ep->ep.name, req); + + /* Ensure DREQ is de-asserted */ + net2272_write(ep->dev, DMAREQ, + (0 << DMA_BUFFER_VALID) + | (0 << DMA_REQUEST_ENABLE) + | (1 << DMA_CONTROL_DACK) + | (ep->dev->dma_eot_polarity << EOT_POLARITY) + | (ep->dev->dma_dack_polarity << DACK_POLARITY) + | (ep->dev->dma_dreq_polarity << DREQ_POLARITY) + | ((ep->dma >> 1) << DMA_ENDPOINT_SELECT)); + + ep->dev->dma_busy = 0; + + net2272_ep_write(ep, EP_IRQENB, + (1 << DATA_PACKET_RECEIVED_INTERRUPT_ENABLE) + | (1 << DATA_PACKET_TRANSMITTED_INTERRUPT_ENABLE) + | net2272_ep_read(ep, EP_IRQENB)); + + /* device-to-host transfer completed */ + if (ep->is_in) { + /* validate a short packet or zlp if necessary */ + if ((req->req.length % ep->ep.maxpacket != 0) || + req->req.zero) + set_fifo_bytecount(ep, 0); + + net2272_done(ep, req, 0); + if (!list_empty(&ep->queue)) { + req = list_entry(ep->queue.next, + struct net2272_request, queue); + status = net2272_kick_dma(ep, req); + if (status < 0) + net2272_pio_advance(ep); + } + + /* host-to-device transfer completed */ + } else { + /* terminated with a short packet? */ + if (net2272_read(ep->dev, IRQSTAT0) & + (1 << DMA_DONE_INTERRUPT)) { + /* abort system dma */ + net2272_cancel_dma(ep->dev); + } + + /* EP_TRANSFER will contain the number of bytes + * actually received. + * NOTE: There is no overflow detection on EP_TRANSFER: + * We can't deal with transfers larger than 2^24 bytes! + */ + len = (net2272_ep_read(ep, EP_TRANSFER2) << 16) + | (net2272_ep_read(ep, EP_TRANSFER1) << 8) + | (net2272_ep_read(ep, EP_TRANSFER0)); + + if (ep->not_empty) + len += 4; + + req->req.actual += len; + + /* get any remaining data */ + net2272_pio_advance(ep); + } +} + +/*---------------------------------------------------------------------------*/ + +static void +net2272_handle_ep(struct net2272_ep *ep) +{ + struct net2272_request *req; + u8 stat0, stat1; + + if (!list_empty(&ep->queue)) + req = list_entry(ep->queue.next, + struct net2272_request, queue); + else + req = NULL; + + /* ack all, and handle what we care about */ + stat0 = net2272_ep_read(ep, EP_STAT0); + stat1 = net2272_ep_read(ep, EP_STAT1); + ep->irqs++; + + dev_vdbg(ep->dev->dev, "%s ack ep_stat0 %02x, ep_stat1 %02x, req %p\n", + ep->ep.name, stat0, stat1, req ? &req->req : 0); + + net2272_ep_write(ep, EP_STAT0, stat0 & + ~((1 << NAK_OUT_PACKETS) + | (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT))); + net2272_ep_write(ep, EP_STAT1, stat1); + + /* data packet(s) received (in the fifo, OUT) + * direction must be validated, otherwise control read status phase + * could be interpreted as a valid packet + */ + if (!ep->is_in && (stat0 & (1 << DATA_PACKET_RECEIVED_INTERRUPT))) + net2272_pio_advance(ep); + /* data packet(s) transmitted (IN) */ + else if (stat0 & (1 << DATA_PACKET_TRANSMITTED_INTERRUPT)) + net2272_pio_advance(ep); +} + +static struct net2272_ep * +net2272_get_ep_by_addr(struct net2272 *dev, u16 wIndex) +{ + struct net2272_ep *ep; + + if ((wIndex & USB_ENDPOINT_NUMBER_MASK) == 0) + return &dev->ep[0]; + + list_for_each_entry(ep, &dev->gadget.ep_list, ep.ep_list) { + u8 bEndpointAddress; + + if (!ep->desc) + continue; + bEndpointAddress = ep->desc->bEndpointAddress; + if ((wIndex ^ bEndpointAddress) & USB_DIR_IN) + continue; + if ((wIndex & 0x0f) == (bEndpointAddress & 0x0f)) + return ep; + } + return NULL; +} + +/* + * USB Test Packet: + * JKJKJKJK * 9 + * JJKKJJKK * 8 + * JJJJKKKK * 8 + * JJJJJJJKKKKKKK * 8 + * JJJJJJJK * 8 + * {JKKKKKKK * 10}, JK + */ +static const u8 net2272_test_packet[] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, + 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, + 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0x7F, 0xBF, 0xDF, 0xEF, 0xF7, 0xFB, 0xFD, + 0xFC, 0x7E, 0xBF, 0xDF, 0xEF, 0xF7, 0xFD, 0x7E +}; + +static void +net2272_set_test_mode(struct net2272 *dev, int mode) +{ + int i; + + /* Disable all net2272 interrupts: + * Nothing but a power cycle should stop the test. + */ + net2272_write(dev, IRQENB0, 0x00); + net2272_write(dev, IRQENB1, 0x00); + + /* Force tranceiver to high-speed */ + net2272_write(dev, XCVRDIAG, 1 << FORCE_HIGH_SPEED); + + net2272_write(dev, PAGESEL, 0); + net2272_write(dev, EP_STAT0, 1 << DATA_PACKET_TRANSMITTED_INTERRUPT); + net2272_write(dev, EP_RSPCLR, + (1 << CONTROL_STATUS_PHASE_HANDSHAKE) + | (1 << HIDE_STATUS_PHASE)); + net2272_write(dev, EP_CFG, 1 << ENDPOINT_DIRECTION); + net2272_write(dev, EP_STAT1, 1 << BUFFER_FLUSH); + + /* wait for status phase to complete */ + while (!(net2272_read(dev, EP_STAT0) & + (1 << DATA_PACKET_TRANSMITTED_INTERRUPT))) + ; + + /* Enable test mode */ + net2272_write(dev, USBTEST, mode); + + /* load test packet */ + if (mode == TEST_PACKET) { + /* switch to 8 bit mode */ + net2272_write(dev, LOCCTL, net2272_read(dev, LOCCTL) & + ~(1 << DATA_WIDTH)); + + for (i = 0; i < sizeof(net2272_test_packet); ++i) + net2272_write(dev, EP_DATA, net2272_test_packet[i]); + + /* Validate test packet */ + net2272_write(dev, EP_TRANSFER0, 0); + } +} + +static void +net2272_handle_stat0_irqs(struct net2272 *dev, u8 stat) +{ + struct net2272_ep *ep; + u8 num, scratch; + + /* starting a control request? */ + if (unlikely(stat & (1 << SETUP_PACKET_INTERRUPT))) { + union { + u8 raw[8]; + struct usb_ctrlrequest r; + } u; + int tmp = 0; + struct net2272_request *req; + + if (dev->gadget.speed == USB_SPEED_UNKNOWN) { + if (net2272_read(dev, USBCTL1) & (1 << USB_HIGH_SPEED)) + dev->gadget.speed = USB_SPEED_HIGH; + else + dev->gadget.speed = USB_SPEED_FULL; + dev_dbg(dev->dev, "%s speed\n", + (dev->gadget.speed == USB_SPEED_HIGH) ? "high" : "full"); + } + + ep = &dev->ep[0]; + ep->irqs++; + + /* make sure any leftover interrupt state is cleared */ + stat &= ~(1 << ENDPOINT_0_INTERRUPT); + while (!list_empty(&ep->queue)) { + req = list_entry(ep->queue.next, + struct net2272_request, queue); + net2272_done(ep, req, + (req->req.actual == req->req.length) ? 0 : -EPROTO); + } + ep->stopped = 0; + dev->protocol_stall = 0; + net2272_ep_write(ep, EP_STAT0, + (1 << DATA_IN_TOKEN_INTERRUPT) + | (1 << DATA_OUT_TOKEN_INTERRUPT) + | (1 << DATA_PACKET_TRANSMITTED_INTERRUPT) + | (1 << DATA_PACKET_RECEIVED_INTERRUPT) + | (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT)); + net2272_ep_write(ep, EP_STAT1, + (1 << TIMEOUT) + | (1 << USB_OUT_ACK_SENT) + | (1 << USB_OUT_NAK_SENT) + | (1 << USB_IN_ACK_RCVD) + | (1 << USB_IN_NAK_SENT) + | (1 << USB_STALL_SENT) + | (1 << LOCAL_OUT_ZLP)); + + /* + * Ensure Control Read pre-validation setting is beyond maximum size + * - Control Writes can leave non-zero values in EP_TRANSFER. If + * an EP0 transfer following the Control Write is a Control Read, + * the NET2272 sees the non-zero EP_TRANSFER as an unexpected + * pre-validation count. + * - Setting EP_TRANSFER beyond the maximum EP0 transfer size ensures + * the pre-validation count cannot cause an unexpected validatation + */ + net2272_write(dev, PAGESEL, 0); + net2272_write(dev, EP_TRANSFER2, 0xff); + net2272_write(dev, EP_TRANSFER1, 0xff); + net2272_write(dev, EP_TRANSFER0, 0xff); + + u.raw[0] = net2272_read(dev, SETUP0); + u.raw[1] = net2272_read(dev, SETUP1); + u.raw[2] = net2272_read(dev, SETUP2); + u.raw[3] = net2272_read(dev, SETUP3); + u.raw[4] = net2272_read(dev, SETUP4); + u.raw[5] = net2272_read(dev, SETUP5); + u.raw[6] = net2272_read(dev, SETUP6); + u.raw[7] = net2272_read(dev, SETUP7); + /* + * If you have a big endian cpu make sure le16_to_cpus + * performs the proper byte swapping here... + */ + le16_to_cpus(&u.r.wValue); + le16_to_cpus(&u.r.wIndex); + le16_to_cpus(&u.r.wLength); + + /* ack the irq */ + net2272_write(dev, IRQSTAT0, 1 << SETUP_PACKET_INTERRUPT); + stat ^= (1 << SETUP_PACKET_INTERRUPT); + + /* watch control traffic at the token level, and force + * synchronization before letting the status phase happen. + */ + ep->is_in = (u.r.bRequestType & USB_DIR_IN) != 0; + if (ep->is_in) { + scratch = (1 << DATA_PACKET_TRANSMITTED_INTERRUPT_ENABLE) + | (1 << DATA_OUT_TOKEN_INTERRUPT_ENABLE) + | (1 << DATA_IN_TOKEN_INTERRUPT_ENABLE); + stop_out_naking(ep); + } else + scratch = (1 << DATA_PACKET_RECEIVED_INTERRUPT_ENABLE) + | (1 << DATA_OUT_TOKEN_INTERRUPT_ENABLE) + | (1 << DATA_IN_TOKEN_INTERRUPT_ENABLE); + net2272_ep_write(ep, EP_IRQENB, scratch); + + if ((u.r.bRequestType & USB_TYPE_MASK) != USB_TYPE_STANDARD) + goto delegate; + switch (u.r.bRequest) { + case USB_REQ_GET_STATUS: { + struct net2272_ep *e; + u16 status = 0; + + switch (u.r.bRequestType & USB_RECIP_MASK) { + case USB_RECIP_ENDPOINT: + e = net2272_get_ep_by_addr(dev, u.r.wIndex); + if (!e || u.r.wLength > 2) + goto do_stall; + if (net2272_ep_read(e, EP_RSPSET) & (1 << ENDPOINT_HALT)) + status = __constant_cpu_to_le16(1); + else + status = __constant_cpu_to_le16(0); + + /* don't bother with a request object! */ + net2272_ep_write(&dev->ep[0], EP_IRQENB, 0); + writew(status, net2272_reg_addr(dev, EP_DATA)); + set_fifo_bytecount(&dev->ep[0], 0); + allow_status(ep); + dev_vdbg(dev->dev, "%s stat %02x\n", + ep->ep.name, status); + goto next_endpoints; + case USB_RECIP_DEVICE: + if (u.r.wLength > 2) + goto do_stall; + if (dev->is_selfpowered) + status = (1 << USB_DEVICE_SELF_POWERED); + + /* don't bother with a request object! */ + net2272_ep_write(&dev->ep[0], EP_IRQENB, 0); + writew(status, net2272_reg_addr(dev, EP_DATA)); + set_fifo_bytecount(&dev->ep[0], 0); + allow_status(ep); + dev_vdbg(dev->dev, "device stat %02x\n", status); + goto next_endpoints; + case USB_RECIP_INTERFACE: + if (u.r.wLength > 2) + goto do_stall; + + /* don't bother with a request object! */ + net2272_ep_write(&dev->ep[0], EP_IRQENB, 0); + writew(status, net2272_reg_addr(dev, EP_DATA)); + set_fifo_bytecount(&dev->ep[0], 0); + allow_status(ep); + dev_vdbg(dev->dev, "interface status %02x\n", status); + goto next_endpoints; + } + + break; + } + case USB_REQ_CLEAR_FEATURE: { + struct net2272_ep *e; + + if (u.r.bRequestType != USB_RECIP_ENDPOINT) + goto delegate; + if (u.r.wValue != USB_ENDPOINT_HALT || + u.r.wLength != 0) + goto do_stall; + e = net2272_get_ep_by_addr(dev, u.r.wIndex); + if (!e) + goto do_stall; + if (e->wedged) { + dev_vdbg(dev->dev, "%s wedged, halt not cleared\n", + ep->ep.name); + } else { + dev_vdbg(dev->dev, "%s clear halt\n", ep->ep.name); + clear_halt(e); + } + allow_status(ep); + goto next_endpoints; + } + case USB_REQ_SET_FEATURE: { + struct net2272_ep *e; + + if (u.r.bRequestType == USB_RECIP_DEVICE) { + if (u.r.wIndex != NORMAL_OPERATION) + net2272_set_test_mode(dev, (u.r.wIndex >> 8)); + allow_status(ep); + dev_vdbg(dev->dev, "test mode: %d\n", u.r.wIndex); + goto next_endpoints; + } else if (u.r.bRequestType != USB_RECIP_ENDPOINT) + goto delegate; + if (u.r.wValue != USB_ENDPOINT_HALT || + u.r.wLength != 0) + goto do_stall; + e = net2272_get_ep_by_addr(dev, u.r.wIndex); + if (!e) + goto do_stall; + set_halt(e); + allow_status(ep); + dev_vdbg(dev->dev, "%s set halt\n", ep->ep.name); + goto next_endpoints; + } + case USB_REQ_SET_ADDRESS: { + net2272_write(dev, OURADDR, u.r.wValue & 0xff); + allow_status(ep); + break; + } + default: + delegate: + dev_vdbg(dev->dev, "setup %02x.%02x v%04x i%04x " + "ep_cfg %08x\n", + u.r.bRequestType, u.r.bRequest, + u.r.wValue, u.r.wIndex, + net2272_ep_read(ep, EP_CFG)); + spin_unlock(&dev->lock); + tmp = dev->driver->setup(&dev->gadget, &u.r); + spin_lock(&dev->lock); + } + + /* stall ep0 on error */ + if (tmp < 0) { + do_stall: + dev_vdbg(dev->dev, "req %02x.%02x protocol STALL; stat %d\n", + u.r.bRequestType, u.r.bRequest, tmp); + dev->protocol_stall = 1; + } + /* endpoint dma irq? */ + } else if (stat & (1 << DMA_DONE_INTERRUPT)) { + net2272_cancel_dma(dev); + net2272_write(dev, IRQSTAT0, 1 << DMA_DONE_INTERRUPT); + stat &= ~(1 << DMA_DONE_INTERRUPT); + num = (net2272_read(dev, DMAREQ) & (1 << DMA_ENDPOINT_SELECT)) + ? 2 : 1; + + ep = &dev->ep[num]; + net2272_handle_dma(ep); + } + + next_endpoints: + /* endpoint data irq? */ + scratch = stat & 0x0f; + stat &= ~0x0f; + for (num = 0; scratch; num++) { + u8 t; + + /* does this endpoint's FIFO and queue need tending? */ + t = 1 << num; + if ((scratch & t) == 0) + continue; + scratch ^= t; + + ep = &dev->ep[num]; + net2272_handle_ep(ep); + } + + /* some interrupts we can just ignore */ + stat &= ~(1 << SOF_INTERRUPT); + + if (stat) + dev_dbg(dev->dev, "unhandled irqstat0 %02x\n", stat); +} + +static void +net2272_handle_stat1_irqs(struct net2272 *dev, u8 stat) +{ + u8 tmp, mask; + + /* after disconnect there's nothing else to do! */ + tmp = (1 << VBUS_INTERRUPT) | (1 << ROOT_PORT_RESET_INTERRUPT); + mask = (1 << USB_HIGH_SPEED) | (1 << USB_FULL_SPEED); + + if (stat & tmp) { + net2272_write(dev, IRQSTAT1, tmp); + if ((((stat & (1 << ROOT_PORT_RESET_INTERRUPT)) && + ((net2272_read(dev, USBCTL1) & mask) == 0)) + || ((net2272_read(dev, USBCTL1) & (1 << VBUS_PIN)) + == 0)) + && (dev->gadget.speed != USB_SPEED_UNKNOWN)) { + dev_dbg(dev->dev, "disconnect %s\n", + dev->driver->driver.name); + stop_activity(dev, dev->driver); + net2272_ep0_start(dev); + return; + } + stat &= ~tmp; + + if (!stat) + return; + } + + tmp = (1 << SUSPEND_REQUEST_CHANGE_INTERRUPT); + if (stat & tmp) { + net2272_write(dev, IRQSTAT1, tmp); + if (stat & (1 << SUSPEND_REQUEST_INTERRUPT)) { + if (dev->driver->suspend) + dev->driver->suspend(&dev->gadget); + if (!enable_suspend) { + stat &= ~(1 << SUSPEND_REQUEST_INTERRUPT); + dev_dbg(dev->dev, "Suspend disabled, ignoring\n"); + } + } else { + if (dev->driver->resume) + dev->driver->resume(&dev->gadget); + } + stat &= ~tmp; + } + + /* clear any other status/irqs */ + if (stat) + net2272_write(dev, IRQSTAT1, stat); + + /* some status we can just ignore */ + stat &= ~((1 << CONTROL_STATUS_INTERRUPT) + | (1 << SUSPEND_REQUEST_INTERRUPT) + | (1 << RESUME_INTERRUPT)); + if (!stat) + return; + else + dev_dbg(dev->dev, "unhandled irqstat1 %02x\n", stat); +} + +static irqreturn_t net2272_irq(int irq, void *_dev) +{ + struct net2272 *dev = _dev; +#if defined(PLX_PCI_RDK) || defined(PLX_PCI_RDK2) + u32 intcsr; +#endif +#if defined(PLX_PCI_RDK) + u8 dmareq; +#endif + spin_lock(&dev->lock); +#if defined(PLX_PCI_RDK) + intcsr = readl(dev->rdk1.plx9054_base_addr + INTCSR); + + if ((intcsr & LOCAL_INTERRUPT_TEST) == LOCAL_INTERRUPT_TEST) { + writel(intcsr & ~(1 << PCI_INTERRUPT_ENABLE), + dev->rdk1.plx9054_base_addr + INTCSR); + net2272_handle_stat1_irqs(dev, net2272_read(dev, IRQSTAT1)); + net2272_handle_stat0_irqs(dev, net2272_read(dev, IRQSTAT0)); + intcsr = readl(dev->rdk1.plx9054_base_addr + INTCSR); + writel(intcsr | (1 << PCI_INTERRUPT_ENABLE), + dev->rdk1.plx9054_base_addr + INTCSR); + } + if ((intcsr & DMA_CHANNEL_0_TEST) == DMA_CHANNEL_0_TEST) { + writeb((1 << CHANNEL_CLEAR_INTERRUPT | (0 << CHANNEL_ENABLE)), + dev->rdk1.plx9054_base_addr + DMACSR0); + + dmareq = net2272_read(dev, DMAREQ); + if (dmareq & 0x01) + net2272_handle_dma(&dev->ep[2]); + else + net2272_handle_dma(&dev->ep[1]); + } +#endif +#if defined(PLX_PCI_RDK2) + /* see if PCI int for us by checking irqstat */ + intcsr = readl(dev->rdk2.fpga_base_addr + RDK2_IRQSTAT); + if (!intcsr & (1 << NET2272_PCI_IRQ)) + return IRQ_NONE; + /* check dma interrupts */ +#endif + /* Platform/devcice interrupt handler */ +#if !defined(PLX_PCI_RDK) + net2272_handle_stat1_irqs(dev, net2272_read(dev, IRQSTAT1)); + net2272_handle_stat0_irqs(dev, net2272_read(dev, IRQSTAT0)); +#endif + spin_unlock(&dev->lock); + + return IRQ_HANDLED; +} + +static int net2272_present(struct net2272 *dev) +{ + /* + * Quick test to see if CPU can communicate properly with the NET2272. + * Verifies connection using writes and reads to write/read and + * read-only registers. + * + * This routine is strongly recommended especially during early bring-up + * of new hardware, however for designs that do not apply Power On System + * Tests (POST) it may discarded (or perhaps minimized). + */ + unsigned int ii; + u8 val, refval; + + /* Verify NET2272 write/read SCRATCH register can write and read */ + refval = net2272_read(dev, SCRATCH); + for (ii = 0; ii < 0x100; ii += 7) { + net2272_write(dev, SCRATCH, ii); + val = net2272_read(dev, SCRATCH); + if (val != ii) { + dev_dbg(dev->dev, + "%s: write/read SCRATCH register test failed: " + "wrote:0x%2.2x, read:0x%2.2x\n", + __func__, ii, val); + return -EINVAL; + } + } + /* To be nice, we write the original SCRATCH value back: */ + net2272_write(dev, SCRATCH, refval); + + /* Verify NET2272 CHIPREV register is read-only: */ + refval = net2272_read(dev, CHIPREV_2272); + for (ii = 0; ii < 0x100; ii += 7) { + net2272_write(dev, CHIPREV_2272, ii); + val = net2272_read(dev, CHIPREV_2272); + if (val != refval) { + dev_dbg(dev->dev, + "%s: write/read CHIPREV register test failed: " + "wrote 0x%2.2x, read:0x%2.2x expected:0x%2.2x\n", + __func__, ii, val, refval); + return -EINVAL; + } + } + + /* + * Verify NET2272's "NET2270 legacy revision" register + * - NET2272 has two revision registers. The NET2270 legacy revision + * register should read the same value, regardless of the NET2272 + * silicon revision. The legacy register applies to NET2270 + * firmware being applied to the NET2272. + */ + val = net2272_read(dev, CHIPREV_LEGACY); + if (val != NET2270_LEGACY_REV) { + /* + * Unexpected legacy revision value + * - Perhaps the chip is a NET2270? + */ + dev_dbg(dev->dev, + "%s: WARNING: UNEXPECTED NET2272 LEGACY REGISTER VALUE:\n" + " - CHIPREV_LEGACY: expected 0x%2.2x, got:0x%2.2x. (Not NET2272?)\n", + __func__, NET2270_LEGACY_REV, val); + return -EINVAL; + } + + /* + * Verify NET2272 silicon revision + * - This revision register is appropriate for the silicon version + * of the NET2272 + */ + val = net2272_read(dev, CHIPREV_2272); + switch (val) { + case CHIPREV_NET2272_R1: + /* + * NET2272 Rev 1 has DMA related errata: + * - Newer silicon (Rev 1A or better) required + */ + dev_dbg(dev->dev, + "%s: Rev 1 detected: newer silicon recommended for DMA support\n", + __func__); + break; + case CHIPREV_NET2272_R1A: + break; + default: + /* NET2272 silicon version *may* not work with this firmware */ + dev_dbg(dev->dev, + "%s: unexpected silicon revision register value: " + " CHIPREV_2272: 0x%2.2x\n", + __func__, val); + /* + * Return Success, even though the chip rev is not an expected value + * - Older, pre-built firmware can attempt to operate on newer silicon + * - Often, new silicon is perfectly compatible + */ + } + + /* Success: NET2272 checks out OK */ + return 0; +} + +static void +net2272_gadget_release(struct device *_dev) +{ + struct net2272 *dev = dev_get_drvdata(_dev); + kfree(dev); +} + +/*---------------------------------------------------------------------------*/ + +static void __devexit +net2272_remove(struct net2272 *dev) +{ + usb_del_gadget_udc(&dev->gadget); + + /* start with the driver above us */ + if (dev->driver) { + /* should have been done already by driver model core */ + dev_warn(dev->dev, "pci remove, driver '%s' is still registered\n", + dev->driver->driver.name); + usb_gadget_unregister_driver(dev->driver); + } + + free_irq(dev->irq, dev); + iounmap(dev->base_addr); + + device_unregister(&dev->gadget.dev); + device_remove_file(dev->dev, &dev_attr_registers); + + dev_info(dev->dev, "unbind\n"); + the_controller = NULL; +} + +static struct net2272 * __devinit +net2272_probe_init(struct device *dev, unsigned int irq) +{ + struct net2272 *ret; + + if (the_controller) { + dev_warn(dev, "ignoring\n"); + return ERR_PTR(-EBUSY); + } + + if (!irq) { + dev_dbg(dev, "No IRQ!\n"); + return ERR_PTR(-ENODEV); + } + + /* alloc, and start init */ + ret = kzalloc(sizeof(*ret), GFP_KERNEL); + if (!ret) + return ERR_PTR(-ENOMEM); + + spin_lock_init(&ret->lock); + ret->irq = irq; + ret->dev = dev; + ret->gadget.ops = &net2272_ops; + ret->gadget.is_dualspeed = 1; + + /* the "gadget" abstracts/virtualizes the controller */ + dev_set_name(&ret->gadget.dev, "gadget"); + ret->gadget.dev.parent = dev; + ret->gadget.dev.dma_mask = dev->dma_mask; + ret->gadget.dev.release = net2272_gadget_release; + ret->gadget.name = driver_name; + + return ret; +} + +static int __devinit +net2272_probe_fin(struct net2272 *dev, unsigned int irqflags) +{ + int ret; + + /* See if there... */ + if (net2272_present(dev)) { + dev_warn(dev->dev, "2272 not found!\n"); + ret = -ENODEV; + goto err; + } + + net2272_usb_reset(dev); + net2272_usb_reinit(dev); + + ret = request_irq(dev->irq, net2272_irq, irqflags, driver_name, dev); + if (ret) { + dev_err(dev->dev, "request interrupt %i failed\n", dev->irq); + goto err; + } + + dev->chiprev = net2272_read(dev, CHIPREV_2272); + + /* done */ + dev_info(dev->dev, "%s\n", driver_desc); + dev_info(dev->dev, "irq %i, mem %p, chip rev %04x, dma %s\n", + dev->irq, dev->base_addr, dev->chiprev, + dma_mode_string()); + dev_info(dev->dev, "version: %s\n", driver_vers); + + the_controller = dev; + + ret = device_register(&dev->gadget.dev); + if (ret) + goto err_irq; + ret = device_create_file(dev->dev, &dev_attr_registers); + if (ret) + goto err_dev_reg; + + ret = usb_add_gadget_udc(dev->dev, &dev->gadget); + if (ret) + goto err_add_udc; + + return 0; + +err_add_udc: + device_remove_file(dev->dev, &dev_attr_registers); + err_dev_reg: + device_unregister(&dev->gadget.dev); + err_irq: + free_irq(dev->irq, dev); + err: + return ret; +} + +#ifdef CONFIG_PCI + +/* + * wrap this driver around the specified device, but + * don't respond over USB until a gadget driver binds to us + */ + +static int __devinit +net2272_rdk1_probe(struct pci_dev *pdev, struct net2272 *dev) +{ + unsigned long resource, len, tmp; + void __iomem *mem_mapped_addr[4]; + int ret, i; + + /* + * BAR 0 holds PLX 9054 config registers + * BAR 1 is i/o memory; unused here + * BAR 2 holds EPLD config registers + * BAR 3 holds NET2272 registers + */ + + /* Find and map all address spaces */ + for (i = 0; i < 4; ++i) { + if (i == 1) + continue; /* BAR1 unused */ + + resource = pci_resource_start(pdev, i); + len = pci_resource_len(pdev, i); + + if (!request_mem_region(resource, len, driver_name)) { + dev_dbg(dev->dev, "controller already in use\n"); + ret = -EBUSY; + goto err; + } + + mem_mapped_addr[i] = ioremap_nocache(resource, len); + if (mem_mapped_addr[i] == NULL) { + release_mem_region(resource, len); + dev_dbg(dev->dev, "can't map memory\n"); + ret = -EFAULT; + goto err; + } + } + + dev->rdk1.plx9054_base_addr = mem_mapped_addr[0]; + dev->rdk1.epld_base_addr = mem_mapped_addr[2]; + dev->base_addr = mem_mapped_addr[3]; + + /* Set PLX 9054 bus width (16 bits) */ + tmp = readl(dev->rdk1.plx9054_base_addr + LBRD1); + writel((tmp & ~(3 << MEMORY_SPACE_LOCAL_BUS_WIDTH)) | W16_BIT, + dev->rdk1.plx9054_base_addr + LBRD1); + + /* Enable PLX 9054 Interrupts */ + writel(readl(dev->rdk1.plx9054_base_addr + INTCSR) | + (1 << PCI_INTERRUPT_ENABLE) | + (1 << LOCAL_INTERRUPT_INPUT_ENABLE), + dev->rdk1.plx9054_base_addr + INTCSR); + + writeb((1 << CHANNEL_CLEAR_INTERRUPT | (0 << CHANNEL_ENABLE)), + dev->rdk1.plx9054_base_addr + DMACSR0); + + /* reset */ + writeb((1 << EPLD_DMA_ENABLE) | + (1 << DMA_CTL_DACK) | + (1 << DMA_TIMEOUT_ENABLE) | + (1 << USER) | + (0 << MPX_MODE) | + (1 << BUSWIDTH) | + (1 << NET2272_RESET), + dev->base_addr + EPLD_IO_CONTROL_REGISTER); + + mb(); + writeb(readb(dev->base_addr + EPLD_IO_CONTROL_REGISTER) & + ~(1 << NET2272_RESET), + dev->base_addr + EPLD_IO_CONTROL_REGISTER); + udelay(200); + + return 0; + + err: + while (--i >= 0) { + iounmap(mem_mapped_addr[i]); + release_mem_region(pci_resource_start(pdev, i), + pci_resource_len(pdev, i)); + } + + return ret; +} + +static int __devinit +net2272_rdk2_probe(struct pci_dev *pdev, struct net2272 *dev) +{ + unsigned long resource, len; + void __iomem *mem_mapped_addr[2]; + int ret, i; + + /* + * BAR 0 holds FGPA config registers + * BAR 1 holds NET2272 registers + */ + + /* Find and map all address spaces, bar2-3 unused in rdk 2 */ + for (i = 0; i < 2; ++i) { + resource = pci_resource_start(pdev, i); + len = pci_resource_len(pdev, i); + + if (!request_mem_region(resource, len, driver_name)) { + dev_dbg(dev->dev, "controller already in use\n"); + ret = -EBUSY; + goto err; + } + + mem_mapped_addr[i] = ioremap_nocache(resource, len); + if (mem_mapped_addr[i] == NULL) { + release_mem_region(resource, len); + dev_dbg(dev->dev, "can't map memory\n"); + ret = -EFAULT; + goto err; + } + } + + dev->rdk2.fpga_base_addr = mem_mapped_addr[0]; + dev->base_addr = mem_mapped_addr[1]; + + mb(); + /* Set 2272 bus width (16 bits) and reset */ + writel((1 << CHIP_RESET), dev->rdk2.fpga_base_addr + RDK2_LOCCTLRDK); + udelay(200); + writel((1 << BUS_WIDTH), dev->rdk2.fpga_base_addr + RDK2_LOCCTLRDK); + /* Print fpga version number */ + dev_info(dev->dev, "RDK2 FPGA version %08x\n", + readl(dev->rdk2.fpga_base_addr + RDK2_FPGAREV)); + /* Enable FPGA Interrupts */ + writel((1 << NET2272_PCI_IRQ), dev->rdk2.fpga_base_addr + RDK2_IRQENB); + + return 0; + + err: + while (--i >= 0) { + iounmap(mem_mapped_addr[i]); + release_mem_region(pci_resource_start(pdev, i), + pci_resource_len(pdev, i)); + } + + return ret; +} + +static int __devinit +net2272_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + struct net2272 *dev; + int ret; + + dev = net2272_probe_init(&pdev->dev, pdev->irq); + if (IS_ERR(dev)) + return PTR_ERR(dev); + dev->dev_id = pdev->device; + + if (pci_enable_device(pdev) < 0) { + ret = -ENODEV; + goto err_free; + } + + pci_set_master(pdev); + + switch (pdev->device) { + case PCI_DEVICE_ID_RDK1: ret = net2272_rdk1_probe(pdev, dev); break; + case PCI_DEVICE_ID_RDK2: ret = net2272_rdk2_probe(pdev, dev); break; + default: BUG(); + } + if (ret) + goto err_pci; + + ret = net2272_probe_fin(dev, 0); + if (ret) + goto err_pci; + + pci_set_drvdata(pdev, dev); + + return 0; + + err_pci: + pci_disable_device(pdev); + err_free: + kfree(dev); + + return ret; +} + +static void __devexit +net2272_rdk1_remove(struct pci_dev *pdev, struct net2272 *dev) +{ + int i; + + /* disable PLX 9054 interrupts */ + writel(readl(dev->rdk1.plx9054_base_addr + INTCSR) & + ~(1 << PCI_INTERRUPT_ENABLE), + dev->rdk1.plx9054_base_addr + INTCSR); + + /* clean up resources allocated during probe() */ + iounmap(dev->rdk1.plx9054_base_addr); + iounmap(dev->rdk1.epld_base_addr); + + for (i = 0; i < 4; ++i) { + if (i == 1) + continue; /* BAR1 unused */ + release_mem_region(pci_resource_start(pdev, i), + pci_resource_len(pdev, i)); + } +} + +static void __devexit +net2272_rdk2_remove(struct pci_dev *pdev, struct net2272 *dev) +{ + int i; + + /* disable fpga interrupts + writel(readl(dev->rdk1.plx9054_base_addr + INTCSR) & + ~(1 << PCI_INTERRUPT_ENABLE), + dev->rdk1.plx9054_base_addr + INTCSR); + */ + + /* clean up resources allocated during probe() */ + iounmap(dev->rdk2.fpga_base_addr); + + for (i = 0; i < 2; ++i) + release_mem_region(pci_resource_start(pdev, i), + pci_resource_len(pdev, i)); +} + +static void __devexit +net2272_pci_remove(struct pci_dev *pdev) +{ + struct net2272 *dev = pci_get_drvdata(pdev); + + net2272_remove(dev); + + switch (pdev->device) { + case PCI_DEVICE_ID_RDK1: net2272_rdk1_remove(pdev, dev); break; + case PCI_DEVICE_ID_RDK2: net2272_rdk2_remove(pdev, dev); break; + default: BUG(); + } + + pci_disable_device(pdev); + + kfree(dev); +} + +/* Table of matching PCI IDs */ +static struct pci_device_id __devinitdata pci_ids[] = { + { /* RDK 1 card */ + .class = ((PCI_CLASS_BRIDGE_OTHER << 8) | 0xfe), + .class_mask = 0, + .vendor = PCI_VENDOR_ID_PLX, + .device = PCI_DEVICE_ID_RDK1, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + }, + { /* RDK 2 card */ + .class = ((PCI_CLASS_BRIDGE_OTHER << 8) | 0xfe), + .class_mask = 0, + .vendor = PCI_VENDOR_ID_PLX, + .device = PCI_DEVICE_ID_RDK2, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + }, + { } +}; +MODULE_DEVICE_TABLE(pci, pci_ids); + +static struct pci_driver net2272_pci_driver = { + .name = driver_name, + .id_table = pci_ids, + + .probe = net2272_pci_probe, + .remove = __devexit_p(net2272_pci_remove), +}; + +static int net2272_pci_register(void) +{ + return pci_register_driver(&net2272_pci_driver); +} + +static void net2272_pci_unregister(void) +{ + pci_unregister_driver(&net2272_pci_driver); +} + +#else +static inline int net2272_pci_register(void) { return 0; } +static inline void net2272_pci_unregister(void) { } +#endif + +/*---------------------------------------------------------------------------*/ + +static int __devinit +net2272_plat_probe(struct platform_device *pdev) +{ + struct net2272 *dev; + int ret; + unsigned int irqflags; + resource_size_t base, len; + struct resource *iomem, *iomem_bus, *irq_res; + + irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + iomem_bus = platform_get_resource(pdev, IORESOURCE_BUS, 0); + if (!irq_res || !iomem) { + dev_err(&pdev->dev, "must provide irq/base addr"); + return -EINVAL; + } + + dev = net2272_probe_init(&pdev->dev, irq_res->start); + if (IS_ERR(dev)) + return PTR_ERR(dev); + + irqflags = 0; + if (irq_res->flags & IORESOURCE_IRQ_HIGHEDGE) + irqflags |= IRQF_TRIGGER_RISING; + if (irq_res->flags & IORESOURCE_IRQ_LOWEDGE) + irqflags |= IRQF_TRIGGER_FALLING; + if (irq_res->flags & IORESOURCE_IRQ_HIGHLEVEL) + irqflags |= IRQF_TRIGGER_HIGH; + if (irq_res->flags & IORESOURCE_IRQ_LOWLEVEL) + irqflags |= IRQF_TRIGGER_LOW; + + base = iomem->start; + len = resource_size(iomem); + if (iomem_bus) + dev->base_shift = iomem_bus->start; + + if (!request_mem_region(base, len, driver_name)) { + dev_dbg(dev->dev, "get request memory region!\n"); + ret = -EBUSY; + goto err; + } + dev->base_addr = ioremap_nocache(base, len); + if (!dev->base_addr) { + dev_dbg(dev->dev, "can't map memory\n"); + ret = -EFAULT; + goto err_req; + } + + ret = net2272_probe_fin(dev, IRQF_TRIGGER_LOW); + if (ret) + goto err_io; + + platform_set_drvdata(pdev, dev); + dev_info(&pdev->dev, "running in 16-bit, %sbyte swap local bus mode\n", + (net2272_read(dev, LOCCTL) & (1 << BYTE_SWAP)) ? "" : "no "); + + the_controller = dev; + + return 0; + + err_io: + iounmap(dev->base_addr); + err_req: + release_mem_region(base, len); + err: + return ret; +} + +static int __devexit +net2272_plat_remove(struct platform_device *pdev) +{ + struct net2272 *dev = platform_get_drvdata(pdev); + + net2272_remove(dev); + + release_mem_region(pdev->resource[0].start, + resource_size(&pdev->resource[0])); + + kfree(dev); + + return 0; +} + +static struct platform_driver net2272_plat_driver = { + .probe = net2272_plat_probe, + .remove = __devexit_p(net2272_plat_remove), + .driver = { + .name = driver_name, + .owner = THIS_MODULE, + }, + /* FIXME .suspend, .resume */ +}; +MODULE_ALIAS("platform:net2272"); + +static int __init net2272_init(void) +{ + int ret; + + ret = net2272_pci_register(); + if (ret) + return ret; + ret = platform_driver_register(&net2272_plat_driver); + if (ret) + goto err_pci; + return ret; + +err_pci: + net2272_pci_unregister(); + return ret; +} +module_init(net2272_init); + +static void __exit net2272_cleanup(void) +{ + net2272_pci_unregister(); + platform_driver_unregister(&net2272_plat_driver); +} +module_exit(net2272_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("PLX Technology, Inc."); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/net2272.h b/drivers/usb/gadget/net2272.h new file mode 100644 index 0000000..e595057 --- /dev/null +++ b/drivers/usb/gadget/net2272.h @@ -0,0 +1,601 @@ +/* + * PLX NET2272 high/full speed USB device controller + * + * Copyright (C) 2005-2006 PLX Technology, Inc. + * Copyright (C) 2006-2011 Analog Devices, Inc. + * + * 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 __NET2272_H__ +#define __NET2272_H__ + +/* Main Registers */ +#define REGADDRPTR 0x00 +#define REGDATA 0x01 +#define IRQSTAT0 0x02 +#define ENDPOINT_0_INTERRUPT 0 +#define ENDPOINT_A_INTERRUPT 1 +#define ENDPOINT_B_INTERRUPT 2 +#define ENDPOINT_C_INTERRUPT 3 +#define VIRTUALIZED_ENDPOINT_INTERRUPT 4 +#define SETUP_PACKET_INTERRUPT 5 +#define DMA_DONE_INTERRUPT 6 +#define SOF_INTERRUPT 7 +#define IRQSTAT1 0x03 +#define CONTROL_STATUS_INTERRUPT 1 +#define VBUS_INTERRUPT 2 +#define SUSPEND_REQUEST_INTERRUPT 3 +#define SUSPEND_REQUEST_CHANGE_INTERRUPT 4 +#define RESUME_INTERRUPT 5 +#define ROOT_PORT_RESET_INTERRUPT 6 +#define RESET_STATUS 7 +#define PAGESEL 0x04 +#define DMAREQ 0x1c +#define DMA_ENDPOINT_SELECT 0 +#define DREQ_POLARITY 1 +#define DACK_POLARITY 2 +#define EOT_POLARITY 3 +#define DMA_CONTROL_DACK 4 +#define DMA_REQUEST_ENABLE 5 +#define DMA_REQUEST 6 +#define DMA_BUFFER_VALID 7 +#define SCRATCH 0x1d +#define IRQENB0 0x20 +#define ENDPOINT_0_INTERRUPT_ENABLE 0 +#define ENDPOINT_A_INTERRUPT_ENABLE 1 +#define ENDPOINT_B_INTERRUPT_ENABLE 2 +#define ENDPOINT_C_INTERRUPT_ENABLE 3 +#define VIRTUALIZED_ENDPOINT_INTERRUPT_ENABLE 4 +#define SETUP_PACKET_INTERRUPT_ENABLE 5 +#define DMA_DONE_INTERRUPT_ENABLE 6 +#define SOF_INTERRUPT_ENABLE 7 +#define IRQENB1 0x21 +#define VBUS_INTERRUPT_ENABLE 2 +#define SUSPEND_REQUEST_INTERRUPT_ENABLE 3 +#define SUSPEND_REQUEST_CHANGE_INTERRUPT_ENABLE 4 +#define RESUME_INTERRUPT_ENABLE 5 +#define ROOT_PORT_RESET_INTERRUPT_ENABLE 6 +#define LOCCTL 0x22 +#define DATA_WIDTH 0 +#define LOCAL_CLOCK_OUTPUT 1 +#define LOCAL_CLOCK_OUTPUT_OFF 0 +#define LOCAL_CLOCK_OUTPUT_3_75MHZ 1 +#define LOCAL_CLOCK_OUTPUT_7_5MHZ 2 +#define LOCAL_CLOCK_OUTPUT_15MHZ 3 +#define LOCAL_CLOCK_OUTPUT_30MHZ 4 +#define LOCAL_CLOCK_OUTPUT_60MHZ 5 +#define DMA_SPLIT_BUS_MODE 4 +#define BYTE_SWAP 5 +#define BUFFER_CONFIGURATION 6 +#define BUFFER_CONFIGURATION_EPA512_EPB512 0 +#define BUFFER_CONFIGURATION_EPA1024_EPB512 1 +#define BUFFER_CONFIGURATION_EPA1024_EPB1024 2 +#define BUFFER_CONFIGURATION_EPA1024DB 3 +#define CHIPREV_LEGACY 0x23 +#define NET2270_LEGACY_REV 0x40 +#define LOCCTL1 0x24 +#define DMA_MODE 0 +#define SLOW_DREQ 0 +#define FAST_DREQ 1 +#define BURST_MODE 2 +#define DMA_DACK_ENABLE 2 +#define CHIPREV_2272 0x25 +#define CHIPREV_NET2272_R1 0x10 +#define CHIPREV_NET2272_R1A 0x11 +/* USB Registers */ +#define USBCTL0 0x18 +#define IO_WAKEUP_ENABLE 1 +#define USB_DETECT_ENABLE 3 +#define USB_ROOT_PORT_WAKEUP_ENABLE 5 +#define USBCTL1 0x19 +#define VBUS_PIN 0 +#define USB_FULL_SPEED 1 +#define USB_HIGH_SPEED 2 +#define GENERATE_RESUME 3 +#define VIRTUAL_ENDPOINT_ENABLE 4 +#define FRAME0 0x1a +#define FRAME1 0x1b +#define OURADDR 0x30 +#define FORCE_IMMEDIATE 7 +#define USBDIAG 0x31 +#define FORCE_TRANSMIT_CRC_ERROR 0 +#define PREVENT_TRANSMIT_BIT_STUFF 1 +#define FORCE_RECEIVE_ERROR 2 +#define FAST_TIMES 4 +#define USBTEST 0x32 +#define TEST_MODE_SELECT 0 +#define NORMAL_OPERATION 0 +#define TEST_J 1 +#define TEST_K 2 +#define TEST_SE0_NAK 3 +#define TEST_PACKET 4 +#define TEST_FORCE_ENABLE 5 +#define XCVRDIAG 0x33 +#define FORCE_FULL_SPEED 2 +#define FORCE_HIGH_SPEED 3 +#define OPMODE 4 +#define NORMAL_OPERATION 0 +#define NON_DRIVING 1 +#define DISABLE_BITSTUFF_AND_NRZI_ENCODE 2 +#define LINESTATE 6 +#define SE0_STATE 0 +#define J_STATE 1 +#define K_STATE 2 +#define SE1_STATE 3 +#define VIRTOUT0 0x34 +#define VIRTOUT1 0x35 +#define VIRTIN0 0x36 +#define VIRTIN1 0x37 +#define SETUP0 0x40 +#define SETUP1 0x41 +#define SETUP2 0x42 +#define SETUP3 0x43 +#define SETUP4 0x44 +#define SETUP5 0x45 +#define SETUP6 0x46 +#define SETUP7 0x47 +/* Endpoint Registers (Paged via PAGESEL) */ +#define EP_DATA 0x05 +#define EP_STAT0 0x06 +#define DATA_IN_TOKEN_INTERRUPT 0 +#define DATA_OUT_TOKEN_INTERRUPT 1 +#define DATA_PACKET_TRANSMITTED_INTERRUPT 2 +#define DATA_PACKET_RECEIVED_INTERRUPT 3 +#define SHORT_PACKET_TRANSFERRED_INTERRUPT 4 +#define NAK_OUT_PACKETS 5 +#define BUFFER_EMPTY 6 +#define BUFFER_FULL 7 +#define EP_STAT1 0x07 +#define TIMEOUT 0 +#define USB_OUT_ACK_SENT 1 +#define USB_OUT_NAK_SENT 2 +#define USB_IN_ACK_RCVD 3 +#define USB_IN_NAK_SENT 4 +#define USB_STALL_SENT 5 +#define LOCAL_OUT_ZLP 6 +#define BUFFER_FLUSH 7 +#define EP_TRANSFER0 0x08 +#define EP_TRANSFER1 0x09 +#define EP_TRANSFER2 0x0a +#define EP_IRQENB 0x0b +#define DATA_IN_TOKEN_INTERRUPT_ENABLE 0 +#define DATA_OUT_TOKEN_INTERRUPT_ENABLE 1 +#define DATA_PACKET_TRANSMITTED_INTERRUPT_ENABLE 2 +#define DATA_PACKET_RECEIVED_INTERRUPT_ENABLE 3 +#define SHORT_PACKET_TRANSFERRED_INTERRUPT_ENABLE 4 +#define EP_AVAIL0 0x0c +#define EP_AVAIL1 0x0d +#define EP_RSPCLR 0x0e +#define EP_RSPSET 0x0f +#define ENDPOINT_HALT 0 +#define ENDPOINT_TOGGLE 1 +#define NAK_OUT_PACKETS_MODE 2 +#define CONTROL_STATUS_PHASE_HANDSHAKE 3 +#define INTERRUPT_MODE 4 +#define AUTOVALIDATE 5 +#define HIDE_STATUS_PHASE 6 +#define ALT_NAK_OUT_PACKETS 7 +#define EP_MAXPKT0 0x28 +#define EP_MAXPKT1 0x29 +#define ADDITIONAL_TRANSACTION_OPPORTUNITIES 3 +#define NONE_ADDITIONAL_TRANSACTION 0 +#define ONE_ADDITIONAL_TRANSACTION 1 +#define TWO_ADDITIONAL_TRANSACTION 2 +#define EP_CFG 0x2a +#define ENDPOINT_NUMBER 0 +#define ENDPOINT_DIRECTION 4 +#define ENDPOINT_TYPE 5 +#define ENDPOINT_ENABLE 7 +#define EP_HBW 0x2b +#define HIGH_BANDWIDTH_OUT_TRANSACTION_PID 0 +#define DATA0_PID 0 +#define DATA1_PID 1 +#define DATA2_PID 2 +#define MDATA_PID 3 +#define EP_BUFF_STATES 0x2c +#define BUFFER_A_STATE 0 +#define BUFFER_B_STATE 2 +#define BUFF_FREE 0 +#define BUFF_VALID 1 +#define BUFF_LCL 2 +#define BUFF_USB 3 + +/*---------------------------------------------------------------------------*/ + +#define PCI_DEVICE_ID_RDK1 0x9054 + +/* PCI-RDK EPLD Registers */ +#define RDK_EPLD_IO_REGISTER1 0x00000000 +#define RDK_EPLD_USB_RESET 0 +#define RDK_EPLD_USB_POWERDOWN 1 +#define RDK_EPLD_USB_WAKEUP 2 +#define RDK_EPLD_USB_EOT 3 +#define RDK_EPLD_DPPULL 4 +#define RDK_EPLD_IO_REGISTER2 0x00000004 +#define RDK_EPLD_BUSWIDTH 0 +#define RDK_EPLD_USER 2 +#define RDK_EPLD_RESET_INTERRUPT_ENABLE 3 +#define RDK_EPLD_DMA_TIMEOUT_ENABLE 4 +#define RDK_EPLD_STATUS_REGISTER 0x00000008 +#define RDK_EPLD_USB_LRESET 0 +#define RDK_EPLD_REVISION_REGISTER 0x0000000c + +/* PCI-RDK PLX 9054 Registers */ +#define INTCSR 0x68 +#define PCI_INTERRUPT_ENABLE 8 +#define LOCAL_INTERRUPT_INPUT_ENABLE 11 +#define LOCAL_INPUT_INTERRUPT_ACTIVE 15 +#define LOCAL_DMA_CHANNEL_0_INTERRUPT_ENABLE 18 +#define LOCAL_DMA_CHANNEL_1_INTERRUPT_ENABLE 19 +#define DMA_CHANNEL_0_INTERRUPT_ACTIVE 21 +#define DMA_CHANNEL_1_INTERRUPT_ACTIVE 22 +#define CNTRL 0x6C +#define RELOAD_CONFIGURATION_REGISTERS 29 +#define PCI_ADAPTER_SOFTWARE_RESET 30 +#define DMAMODE0 0x80 +#define LOCAL_BUS_WIDTH 0 +#define INTERNAL_WAIT_STATES 2 +#define TA_READY_INPUT_ENABLE 6 +#define LOCAL_BURST_ENABLE 8 +#define SCATTER_GATHER_MODE 9 +#define DONE_INTERRUPT_ENABLE 10 +#define LOCAL_ADDRESSING_MODE 11 +#define DEMAND_MODE 12 +#define DMA_EOT_ENABLE 14 +#define FAST_SLOW_TERMINATE_MODE_SELECT 15 +#define DMA_CHANNEL_INTERRUPT_SELECT 17 +#define DMAPADR0 0x84 +#define DMALADR0 0x88 +#define DMASIZ0 0x8c +#define DMADPR0 0x90 +#define DESCRIPTOR_LOCATION 0 +#define END_OF_CHAIN 1 +#define INTERRUPT_AFTER_TERMINAL_COUNT 2 +#define DIRECTION_OF_TRANSFER 3 +#define DMACSR0 0xa8 +#define CHANNEL_ENABLE 0 +#define CHANNEL_START 1 +#define CHANNEL_ABORT 2 +#define CHANNEL_CLEAR_INTERRUPT 3 +#define CHANNEL_DONE 4 +#define DMATHR 0xb0 +#define LBRD1 0xf8 +#define MEMORY_SPACE_LOCAL_BUS_WIDTH 0 +#define W8_BIT 0 +#define W16_BIT 1 + +/* Special OR'ing of INTCSR bits */ +#define LOCAL_INTERRUPT_TEST \ + ((1 << LOCAL_INPUT_INTERRUPT_ACTIVE) | \ + (1 << LOCAL_INTERRUPT_INPUT_ENABLE)) + +#define DMA_CHANNEL_0_TEST \ + ((1 << DMA_CHANNEL_0_INTERRUPT_ACTIVE) | \ + (1 << LOCAL_DMA_CHANNEL_0_INTERRUPT_ENABLE)) + +#define DMA_CHANNEL_1_TEST \ + ((1 << DMA_CHANNEL_1_INTERRUPT_ACTIVE) | \ + (1 << LOCAL_DMA_CHANNEL_1_INTERRUPT_ENABLE)) + +/* EPLD Registers */ +#define RDK_EPLD_IO_REGISTER1 0x00000000 +#define RDK_EPLD_USB_RESET 0 +#define RDK_EPLD_USB_POWERDOWN 1 +#define RDK_EPLD_USB_WAKEUP 2 +#define RDK_EPLD_USB_EOT 3 +#define RDK_EPLD_DPPULL 4 +#define RDK_EPLD_IO_REGISTER2 0x00000004 +#define RDK_EPLD_BUSWIDTH 0 +#define RDK_EPLD_USER 2 +#define RDK_EPLD_RESET_INTERRUPT_ENABLE 3 +#define RDK_EPLD_DMA_TIMEOUT_ENABLE 4 +#define RDK_EPLD_STATUS_REGISTER 0x00000008 +#define RDK_EPLD_USB_LRESET 0 +#define RDK_EPLD_REVISION_REGISTER 0x0000000c + +#define EPLD_IO_CONTROL_REGISTER 0x400 +#define NET2272_RESET 0 +#define BUSWIDTH 1 +#define MPX_MODE 3 +#define USER 4 +#define DMA_TIMEOUT_ENABLE 5 +#define DMA_CTL_DACK 6 +#define EPLD_DMA_ENABLE 7 +#define EPLD_DMA_CONTROL_REGISTER 0x800 +#define SPLIT_DMA_MODE 0 +#define SPLIT_DMA_DIRECTION 1 +#define SPLIT_DMA_ENABLE 2 +#define SPLIT_DMA_INTERRUPT_ENABLE 3 +#define SPLIT_DMA_INTERRUPT 4 +#define EPLD_DMA_MODE 5 +#define EPLD_DMA_CONTROLLER_ENABLE 7 +#define SPLIT_DMA_ADDRESS_LOW 0xc00 +#define SPLIT_DMA_ADDRESS_HIGH 0x1000 +#define SPLIT_DMA_BYTE_COUNT_LOW 0x1400 +#define SPLIT_DMA_BYTE_COUNT_HIGH 0x1800 +#define EPLD_REVISION_REGISTER 0x1c00 +#define SPLIT_DMA_RAM 0x4000 +#define DMA_RAM_SIZE 0x1000 + +/*---------------------------------------------------------------------------*/ + +#define PCI_DEVICE_ID_RDK2 0x3272 + +/* PCI-RDK version 2 registers */ + +/* Main Control Registers */ + +#define RDK2_IRQENB 0x00 +#define RDK2_IRQSTAT 0x04 +#define PB7 23 +#define PB6 22 +#define PB5 21 +#define PB4 20 +#define PB3 19 +#define PB2 18 +#define PB1 17 +#define PB0 16 +#define GP3 23 +#define GP2 23 +#define GP1 23 +#define GP0 23 +#define DMA_RETRY_ABORT 6 +#define DMA_PAUSE_DONE 5 +#define DMA_ABORT_DONE 4 +#define DMA_OUT_FIFO_TRANSFER_DONE 3 +#define DMA_LOCAL_DONE 2 +#define DMA_PCI_DONE 1 +#define NET2272_PCI_IRQ 0 + +#define RDK2_LOCCTLRDK 0x08 +#define CHIP_RESET 3 +#define SPLIT_DMA 2 +#define MULTIPLEX_MODE 1 +#define BUS_WIDTH 0 + +#define RDK2_GPIOCTL 0x10 +#define GP3_OUT_ENABLE 7 +#define GP2_OUT_ENABLE 6 +#define GP1_OUT_ENABLE 5 +#define GP0_OUT_ENABLE 4 +#define GP3_DATA 3 +#define GP2_DATA 2 +#define GP1_DATA 1 +#define GP0_DATA 0 + +#define RDK2_LEDSW 0x14 +#define LED3 27 +#define LED2 26 +#define LED1 25 +#define LED0 24 +#define PBUTTON 16 +#define DIPSW 0 + +#define RDK2_DIAG 0x18 +#define RDK2_FAST_TIMES 2 +#define FORCE_PCI_SERR 1 +#define FORCE_PCI_INT 0 +#define RDK2_FPGAREV 0x1C + +/* Dma Control registers */ +#define RDK2_DMACTL 0x80 +#define ADDR_HOLD 24 +#define RETRY_COUNT 16 /* 23:16 */ +#define FIFO_THRESHOLD 11 /* 15:11 */ +#define MEM_WRITE_INVALIDATE 10 +#define READ_MULTIPLE 9 +#define READ_LINE 8 +#define RDK2_DMA_MODE 6 /* 7:6 */ +#define CONTROL_DACK 5 +#define EOT_ENABLE 4 +#define EOT_POLARITY 3 +#define DACK_POLARITY 2 +#define DREQ_POLARITY 1 +#define DMA_ENABLE 0 + +#define RDK2_DMASTAT 0x84 +#define GATHER_COUNT 12 /* 14:12 */ +#define FIFO_COUNT 6 /* 11:6 */ +#define FIFO_FLUSH 5 +#define FIFO_TRANSFER 4 +#define PAUSE_DONE 3 +#define ABORT_DONE 2 +#define DMA_ABORT 1 +#define DMA_START 0 + +#define RDK2_DMAPCICOUNT 0x88 +#define DMA_DIRECTION 31 +#define DMA_PCI_BYTE_COUNT 0 /* 0:23 */ + +#define RDK2_DMALOCCOUNT 0x8C /* 0:23 dma local byte count */ + +#define RDK2_DMAADDR 0x90 /* 2:31 PCI bus starting address */ + +/*---------------------------------------------------------------------------*/ + +#define REG_INDEXED_THRESHOLD (1 << 5) + +/* DRIVER DATA STRUCTURES and UTILITIES */ +struct net2272_ep { + struct usb_ep ep; + struct net2272 *dev; + unsigned long irqs; + + /* analogous to a host-side qh */ + struct list_head queue; + const struct usb_endpoint_descriptor *desc; + unsigned num:8, + fifo_size:12, + stopped:1, + wedged:1, + is_in:1, + is_iso:1, + dma:1, + not_empty:1; +}; + +struct net2272 { + /* each device provides one gadget, several endpoints */ + struct usb_gadget gadget; + struct device *dev; + unsigned short dev_id; + + spinlock_t lock; + struct net2272_ep ep[4]; + struct usb_gadget_driver *driver; + unsigned protocol_stall:1, + softconnect:1, + is_selfpowered:1, + wakeup:1, + dma_eot_polarity:1, + dma_dack_polarity:1, + dma_dreq_polarity:1, + dma_busy:1; + u16 chiprev; + u8 pagesel; + + unsigned int irq; + unsigned short fifo_mode; + + unsigned int base_shift; + u16 __iomem *base_addr; + union { +#ifdef CONFIG_PCI + struct { + void __iomem *plx9054_base_addr; + void __iomem *epld_base_addr; + } rdk1; + struct { + /* Bar0, Bar1 is base_addr both mem-mapped */ + void __iomem *fpga_base_addr; + } rdk2; +#endif + }; +}; + +static void __iomem * +net2272_reg_addr(struct net2272 *dev, unsigned int reg) +{ + return dev->base_addr + (reg << dev->base_shift); +} + +static void +net2272_write(struct net2272 *dev, unsigned int reg, u8 value) +{ + if (reg >= REG_INDEXED_THRESHOLD) { + /* + * Indexed register; use REGADDRPTR/REGDATA + * - Save and restore REGADDRPTR. This prevents REGADDRPTR from + * changes between other code sections, but it is time consuming. + * - Performance tips: either do not save and restore REGADDRPTR (if it + * is safe) or do save/restore operations only in critical sections. + u8 tmp = readb(dev->base_addr + REGADDRPTR); + */ + writeb((u8)reg, net2272_reg_addr(dev, REGADDRPTR)); + writeb(value, net2272_reg_addr(dev, REGDATA)); + /* writeb(tmp, net2272_reg_addr(dev, REGADDRPTR)); */ + } else + writeb(value, net2272_reg_addr(dev, reg)); +} + +static u8 +net2272_read(struct net2272 *dev, unsigned int reg) +{ + u8 ret; + + if (reg >= REG_INDEXED_THRESHOLD) { + /* + * Indexed register; use REGADDRPTR/REGDATA + * - Save and restore REGADDRPTR. This prevents REGADDRPTR from + * changes between other code sections, but it is time consuming. + * - Performance tips: either do not save and restore REGADDRPTR (if it + * is safe) or do save/restore operations only in critical sections. + u8 tmp = readb(dev->base_addr + REGADDRPTR); + */ + writeb((u8)reg, net2272_reg_addr(dev, REGADDRPTR)); + ret = readb(net2272_reg_addr(dev, REGDATA)); + /* writeb(tmp, net2272_reg_addr(dev, REGADDRPTR)); */ + } else + ret = readb(net2272_reg_addr(dev, reg)); + + return ret; +} + +static void +net2272_ep_write(struct net2272_ep *ep, unsigned int reg, u8 value) +{ + struct net2272 *dev = ep->dev; + + if (dev->pagesel != ep->num) { + net2272_write(dev, PAGESEL, ep->num); + dev->pagesel = ep->num; + } + net2272_write(dev, reg, value); +} + +static u8 +net2272_ep_read(struct net2272_ep *ep, unsigned int reg) +{ + struct net2272 *dev = ep->dev; + + if (dev->pagesel != ep->num) { + net2272_write(dev, PAGESEL, ep->num); + dev->pagesel = ep->num; + } + return net2272_read(dev, reg); +} + +static void allow_status(struct net2272_ep *ep) +{ + /* ep0 only */ + net2272_ep_write(ep, EP_RSPCLR, + (1 << CONTROL_STATUS_PHASE_HANDSHAKE) | + (1 << ALT_NAK_OUT_PACKETS) | + (1 << NAK_OUT_PACKETS_MODE)); + ep->stopped = 1; +} + +static void set_halt(struct net2272_ep *ep) +{ + /* ep0 and bulk/intr endpoints */ + net2272_ep_write(ep, EP_RSPCLR, 1 << CONTROL_STATUS_PHASE_HANDSHAKE); + net2272_ep_write(ep, EP_RSPSET, 1 << ENDPOINT_HALT); +} + +static void clear_halt(struct net2272_ep *ep) +{ + /* ep0 and bulk/intr endpoints */ + net2272_ep_write(ep, EP_RSPCLR, + (1 << ENDPOINT_HALT) | (1 << ENDPOINT_TOGGLE)); +} + +/* count (<= 4) bytes in the next fifo write will be valid */ +static void set_fifo_bytecount(struct net2272_ep *ep, unsigned count) +{ + /* net2272_ep_write will truncate to u8 for us */ + net2272_ep_write(ep, EP_TRANSFER2, count >> 16); + net2272_ep_write(ep, EP_TRANSFER1, count >> 8); + net2272_ep_write(ep, EP_TRANSFER0, count); +} + +struct net2272_request { + struct usb_request req; + struct list_head queue; + unsigned mapped:1, + valid:1; +}; + +#endif diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index 476d88e..3dd40b4 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -1410,11 +1410,17 @@ static int net2280_pullup(struct usb_gadget *_gadget, int is_on) return 0; } +static int net2280_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int net2280_stop(struct usb_gadget_driver *driver); + static const struct usb_gadget_ops net2280_ops = { .get_frame = net2280_get_frame, .wakeup = net2280_wakeup, .set_selfpowered = net2280_set_selfpowered, .pullup = net2280_pullup, + .start = net2280_start, + .stop = net2280_stop, }; /*-------------------------------------------------------------------------*/ @@ -1738,62 +1744,6 @@ static void set_fifo_mode (struct net2280 *dev, int mode) list_add_tail (&dev->ep [6].ep.ep_list, &dev->gadget.ep_list); } -/* just declare this in any driver that really need it */ -extern int net2280_set_fifo_mode (struct usb_gadget *gadget, int mode); - -/** - * net2280_set_fifo_mode - change allocation of fifo buffers - * @gadget: access to the net2280 device that will be updated - * @mode: 0 for default, four 1kB buffers (ep-a through ep-d); - * 1 for two 2kB buffers (ep-a and ep-b only); - * 2 for one 2kB buffer (ep-a) and two 1kB ones (ep-b, ep-c). - * - * returns zero on success, else negative errno. when this succeeds, - * the contents of gadget->ep_list may have changed. - * - * you may only call this function when endpoints a-d are all disabled. - * use it whenever extra hardware buffering can help performance, such - * as before enabling "high bandwidth" interrupt endpoints that use - * maxpacket bigger than 512 (when double buffering would otherwise - * be unavailable). - */ -int net2280_set_fifo_mode (struct usb_gadget *gadget, int mode) -{ - int i; - struct net2280 *dev; - int status = 0; - unsigned long flags; - - if (!gadget) - return -ENODEV; - dev = container_of (gadget, struct net2280, gadget); - - spin_lock_irqsave (&dev->lock, flags); - - for (i = 1; i <= 4; i++) - if (dev->ep [i].desc) { - status = -EINVAL; - break; - } - if (mode < 0 || mode > 2) - status = -EINVAL; - if (status == 0) - set_fifo_mode (dev, mode); - spin_unlock_irqrestore (&dev->lock, flags); - - if (status == 0) { - if (mode == 1) - DEBUG (dev, "fifo: ep-a 2K, ep-b 2K\n"); - else if (mode == 2) - DEBUG (dev, "fifo: ep-a 2K, ep-b 1K, ep-c 1K\n"); - /* else all are 1K */ - } - return status; -} -EXPORT_SYMBOL (net2280_set_fifo_mode); - -/*-------------------------------------------------------------------------*/ - /* keeping it simple: * - one bus driver, initted first; * - one function driver, initted second @@ -1930,7 +1880,7 @@ static void ep0_start (struct net2280 *dev) * disconnect is reported. then a host may connect again, or * the driver might get unbound. */ -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int net2280_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct net2280 *dev = the_controller; @@ -1994,7 +1944,6 @@ err_unbind: dev->driver = NULL; return retval; } -EXPORT_SYMBOL(usb_gadget_probe_driver); static void stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver) @@ -2022,7 +1971,7 @@ stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver) usb_reinit (dev); } -int usb_gadget_unregister_driver (struct usb_gadget_driver *driver) +static int net2280_stop(struct usb_gadget_driver *driver) { struct net2280 *dev = the_controller; unsigned long flags; @@ -2049,8 +1998,6 @@ int usb_gadget_unregister_driver (struct usb_gadget_driver *driver) DEBUG (dev, "unregistered driver '%s'\n", driver->driver.name); return 0; } -EXPORT_SYMBOL (usb_gadget_unregister_driver); - /*-------------------------------------------------------------------------*/ @@ -2732,6 +2679,8 @@ static void net2280_remove (struct pci_dev *pdev) { struct net2280 *dev = pci_get_drvdata (pdev); + usb_del_gadget_udc(&dev->gadget); + BUG_ON(dev->driver); /* then clean up the resources we allocated during probe() */ @@ -2916,6 +2865,9 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) retval = device_create_file (&pdev->dev, &dev_attr_registers); if (retval) goto done; + retval = usb_add_gadget_udc(&pdev->dev, &dev->gadget); + if (retval) + goto done; return 0; done: diff --git a/drivers/usb/gadget/nokia.c b/drivers/usb/gadget/nokia.c index 55ca63ad3..c7fb772 100644 --- a/drivers/usb/gadget/nokia.c +++ b/drivers/usb/gadget/nokia.c @@ -241,6 +241,7 @@ static struct usb_composite_driver nokia_driver = { .name = "g_nokia", .dev = &device_desc, .strings = dev_strings, + .max_speed = USB_SPEED_HIGH, .unbind = __exit_p(nokia_unbind), }; diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index 82fd249..740c7da 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -1375,6 +1375,10 @@ static int omap_pullup(struct usb_gadget *gadget, int is_on) return 0; } +static int omap_udc_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int omap_udc_stop(struct usb_gadget_driver *driver); + static struct usb_gadget_ops omap_gadget_ops = { .get_frame = omap_get_frame, .wakeup = omap_wakeup, @@ -1382,6 +1386,8 @@ static struct usb_gadget_ops omap_gadget_ops = { .vbus_session = omap_vbus_session, .vbus_draw = omap_vbus_draw, .pullup = omap_pullup, + .start = omap_udc_start, + .stop = omap_udc_stop, }; /*-------------------------------------------------------------------------*/ @@ -2102,7 +2108,7 @@ static inline int machine_without_vbus_sense(void) ); } -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int omap_udc_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { int status = -ENODEV; @@ -2186,9 +2192,8 @@ done: omap_udc_enable_clock(0); return status; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int usb_gadget_unregister_driver (struct usb_gadget_driver *driver) +static int omap_udc_stop(struct usb_gadget_driver *driver) { unsigned long flags; int status = -ENODEV; @@ -2222,8 +2227,6 @@ int usb_gadget_unregister_driver (struct usb_gadget_driver *driver) DBG("unregistered driver '%s'\n", driver->driver.name); return status; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); - /*-------------------------------------------------------------------------*/ @@ -2991,9 +2994,16 @@ known: create_proc_file(); status = device_add(&udc->gadget.dev); + if (status) + goto cleanup4; + + status = usb_add_gadget_udc(&pdev->dev, &udc->gadget); if (!status) return status; /* If fail, fall through */ +cleanup4: + remove_proc_file(); + #ifdef USE_ISO cleanup3: free_irq(pdev->resource[2].start, udc); @@ -3029,6 +3039,8 @@ static int __exit omap_udc_remove(struct platform_device *pdev) if (!udc) return -ENODEV; + + usb_del_gadget_udc(&udc->gadget); if (udc->driver) return -EBUSY; diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c index 68dbcc3..f96615a 100644 --- a/drivers/usb/gadget/pch_udc.c +++ b/drivers/usb/gadget/pch_udc.c @@ -1176,6 +1176,9 @@ static int pch_udc_pcd_vbus_draw(struct usb_gadget *gadget, unsigned int mA) return -EOPNOTSUPP; } +static int pch_udc_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int pch_udc_stop(struct usb_gadget_driver *driver); static const struct usb_gadget_ops pch_udc_ops = { .get_frame = pch_udc_pcd_get_frame, .wakeup = pch_udc_pcd_wakeup, @@ -1183,6 +1186,8 @@ static const struct usb_gadget_ops pch_udc_ops = { .pullup = pch_udc_pcd_pullup, .vbus_session = pch_udc_pcd_vbus_session, .vbus_draw = pch_udc_pcd_vbus_draw, + .start = pch_udc_start, + .stop = pch_udc_stop, }; /** @@ -2690,7 +2695,7 @@ static int init_dma_pools(struct pch_udc_dev *dev) return 0; } -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int pch_udc_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct pch_udc_dev *dev = pch_udc; @@ -2733,9 +2738,8 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, dev->connected = 1; return 0; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int pch_udc_stop(struct usb_gadget_driver *driver) { struct pch_udc_dev *dev = pch_udc; @@ -2761,7 +2765,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) pch_udc_set_disconnect(dev); return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); static void pch_udc_shutdown(struct pci_dev *pdev) { @@ -2778,6 +2781,8 @@ static void pch_udc_remove(struct pci_dev *pdev) { struct pch_udc_dev *dev = pci_get_drvdata(pdev); + usb_del_gadget_udc(&dev->gadget); + /* gadget driver must not be registered */ if (dev->driver) dev_err(&pdev->dev, @@ -2953,6 +2958,9 @@ static int pch_udc_probe(struct pci_dev *pdev, /* Put the device in disconnected state till a driver is bound */ pch_udc_set_disconnect(dev); + retval = usb_add_gadget_udc(&pdev->dev, &dev->gadget); + if (retval) + goto finished; return 0; finished: diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c index 978e6a1..a341dde 100644 --- a/drivers/usb/gadget/printer.c +++ b/drivers/usb/gadget/printer.c @@ -89,8 +89,7 @@ struct printer_dev { u8 config; s8 interface; struct usb_ep *in_ep, *out_ep; - const struct usb_endpoint_descriptor - *in, *out; + struct list_head rx_reqs; /* List of free RX structs */ struct list_head rx_reqs_active; /* List of Active RX xfers */ struct list_head rx_buffers; /* List of completed xfers */ @@ -898,19 +897,20 @@ set_printer_interface(struct printer_dev *dev) { int result = 0; - dev->in = ep_desc(dev->gadget, &hs_ep_in_desc, &fs_ep_in_desc); + dev->in_ep->desc = ep_desc(dev->gadget, &hs_ep_in_desc, &fs_ep_in_desc); dev->in_ep->driver_data = dev; - dev->out = ep_desc(dev->gadget, &hs_ep_out_desc, &fs_ep_out_desc); + dev->out_ep->desc = ep_desc(dev->gadget, &hs_ep_out_desc, + &fs_ep_out_desc); dev->out_ep->driver_data = dev; - result = usb_ep_enable(dev->in_ep, dev->in); + result = usb_ep_enable(dev->in_ep); if (result != 0) { DBG(dev, "enable %s --> %d\n", dev->in_ep->name, result); goto done; } - result = usb_ep_enable(dev->out_ep, dev->out); + result = usb_ep_enable(dev->out_ep); if (result != 0) { DBG(dev, "enable %s --> %d\n", dev->in_ep->name, result); goto done; @@ -921,8 +921,8 @@ done: if (result != 0) { (void) usb_ep_disable(dev->in_ep); (void) usb_ep_disable(dev->out_ep); - dev->in = NULL; - dev->out = NULL; + dev->in_ep->desc = NULL; + dev->out_ep->desc = NULL; } /* caller is responsible for cleanup on error */ @@ -936,12 +936,14 @@ static void printer_reset_interface(struct printer_dev *dev) DBG(dev, "%s\n", __func__); - if (dev->in) + if (dev->in_ep->desc) usb_ep_disable(dev->in_ep); - if (dev->out) + if (dev->out_ep->desc) usb_ep_disable(dev->out_ep); + dev->in_ep->desc = NULL; + dev->out_ep->desc = NULL; dev->interface = -1; } @@ -1107,9 +1109,9 @@ static void printer_soft_reset(struct printer_dev *dev) list_add(&req->list, &dev->tx_reqs); } - if (usb_ep_enable(dev->in_ep, dev->in)) + if (usb_ep_enable(dev->in_ep)) DBG(dev, "Failed to enable USB in_ep\n"); - if (usb_ep_enable(dev->out_ep, dev->out)) + if (usb_ep_enable(dev->out_ep)) DBG(dev, "Failed to enable USB out_ep\n"); wake_up_interruptible(&dev->rx_wait); @@ -1149,6 +1151,8 @@ printer_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) switch (wValue >> 8) { case USB_DT_DEVICE: + device_desc.bMaxPacketSize0 = + gadget->ep0->maxpacket; value = min(wLength, (u16) sizeof device_desc); memcpy(req->buf, &device_desc, value); break; @@ -1156,6 +1160,12 @@ printer_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) case USB_DT_DEVICE_QUALIFIER: if (!gadget->is_dualspeed) break; + /* + * assumes ep0 uses the same value for both + * speeds + */ + dev_qualifier.bMaxPacketSize0 = + gadget->ep0->maxpacket; value = min(wLength, (u16) sizeof dev_qualifier); memcpy(req->buf, &dev_qualifier, value); @@ -1451,15 +1461,11 @@ autoconf_fail: out_ep->driver_data = out_ep; /* claim */ #ifdef CONFIG_USB_GADGET_DUALSPEED - /* assumes ep0 uses the same value for both speeds ... */ - dev_qualifier.bMaxPacketSize0 = device_desc.bMaxPacketSize0; - - /* and that all endpoints are dual-speed */ + /* assumes that all endpoints are dual-speed */ hs_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress; hs_ep_out_desc.bEndpointAddress = fs_ep_out_desc.bEndpointAddress; #endif /* DUALSPEED */ - device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket; usb_gadget_set_selfpowered(gadget); if (gadget->is_otg) { diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c index 7745454..e4e59b4 100644 --- a/drivers/usb/gadget/pxa25x_udc.c +++ b/drivers/usb/gadget/pxa25x_udc.c @@ -1011,12 +1011,18 @@ static int pxa25x_udc_vbus_draw(struct usb_gadget *_gadget, unsigned mA) return -EOPNOTSUPP; } +static int pxa25x_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int pxa25x_stop(struct usb_gadget_driver *driver); + static const struct usb_gadget_ops pxa25x_udc_ops = { .get_frame = pxa25x_udc_get_frame, .wakeup = pxa25x_udc_wakeup, .vbus_session = pxa25x_udc_vbus_session, .pullup = pxa25x_udc_pullup, .vbus_draw = pxa25x_udc_vbus_draw, + .start = pxa25x_start, + .stop = pxa25x_stop, }; /*-------------------------------------------------------------------------*/ @@ -1263,7 +1269,7 @@ static void udc_enable (struct pxa25x_udc *dev) * disconnect is reported. then a host may connect again, or * the driver might get unbound. */ -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int pxa25x_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct pxa25x_udc *dev = the_controller; @@ -1322,7 +1328,6 @@ fail: bind_fail: return retval; } -EXPORT_SYMBOL(usb_gadget_probe_driver); static void stop_activity(struct pxa25x_udc *dev, struct usb_gadget_driver *driver) @@ -1351,7 +1356,7 @@ stop_activity(struct pxa25x_udc *dev, struct usb_gadget_driver *driver) udc_reinit(dev); } -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int pxa25x_stop(struct usb_gadget_driver *driver) { struct pxa25x_udc *dev = the_controller; @@ -1379,8 +1384,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) dump_state(dev); return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); - /*-------------------------------------------------------------------------*/ @@ -2231,8 +2234,11 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev) #endif create_debug_files(dev); - return 0; + retval = usb_add_gadget_udc(&pdev->dev, &dev->gadget); + if (!retval) + return retval; + remove_debug_files(dev); #ifdef CONFIG_ARCH_LUBBOCK lubbock_fail0: free_irq(LUBBOCK_USB_DISC_IRQ, dev); @@ -2261,6 +2267,7 @@ static int __exit pxa25x_udc_remove(struct platform_device *pdev) { struct pxa25x_udc *dev = platform_get_drvdata(pdev); + usb_del_gadget_udc(&dev->gadget); if (dev->driver) return -EBUSY; diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c index 5760769..85b68c7 100644 --- a/drivers/usb/gadget/pxa27x_udc.c +++ b/drivers/usb/gadget/pxa27x_udc.c @@ -1680,12 +1680,18 @@ static int pxa_udc_vbus_draw(struct usb_gadget *_gadget, unsigned mA) return -EOPNOTSUPP; } +static int pxa27x_udc_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int pxa27x_udc_stop(struct usb_gadget_driver *driver); + static const struct usb_gadget_ops pxa_udc_ops = { .get_frame = pxa_udc_get_frame, .wakeup = pxa_udc_wakeup, .pullup = pxa_udc_pullup, .vbus_session = pxa_udc_vbus_session, .vbus_draw = pxa_udc_vbus_draw, + .start = pxa27x_udc_start, + .stop = pxa27x_udc_stop, }; /** @@ -1791,7 +1797,7 @@ static void udc_enable(struct pxa_udc *udc) } /** - * usb_gadget_probe_driver - Register gadget driver + * pxa27x_start - Register gadget driver * @driver: gadget driver * @bind: bind function * @@ -1805,7 +1811,7 @@ static void udc_enable(struct pxa_udc *udc) * * Returns 0 if no error, -EINVAL, -ENODEV, -EBUSY otherwise */ -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int pxa27x_udc_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct pxa_udc *udc = the_controller; @@ -1860,8 +1866,6 @@ add_fail: udc->gadget.dev.driver = NULL; return retval; } -EXPORT_SYMBOL(usb_gadget_probe_driver); - /** * stop_activity - Stops udc endpoints @@ -1888,12 +1892,12 @@ static void stop_activity(struct pxa_udc *udc, struct usb_gadget_driver *driver) } /** - * usb_gadget_unregister_driver - Unregister the gadget driver + * pxa27x_udc_stop - Unregister the gadget driver * @driver: gadget driver * * Returns 0 if no error, -ENODEV, -EINVAL otherwise */ -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int pxa27x_udc_stop(struct usb_gadget_driver *driver) { struct pxa_udc *udc = the_controller; @@ -1917,7 +1921,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return otg_set_peripheral(udc->transceiver, NULL); return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); /** * handle_ep0_ctrl_req - handle control endpoint control request @@ -2516,9 +2519,14 @@ static int __init pxa_udc_probe(struct platform_device *pdev) driver_name, IRQ_USB, retval); goto err_irq; } + retval = usb_add_gadget_udc(&pdev->dev, &udc->gadget); + if (retval) + goto err_add_udc; pxa_init_debugfs(udc); return 0; +err_add_udc: + free_irq(udc->irq, udc); err_irq: iounmap(udc->regs); err_map: @@ -2537,6 +2545,7 @@ static int __exit pxa_udc_remove(struct platform_device *_dev) struct pxa_udc *udc = platform_get_drvdata(_dev); int gpio = udc->mach->gpio_pullup; + usb_del_gadget_udc(&udc->gadget); usb_gadget_unregister_driver(udc->driver); free_irq(udc->irq, udc); pxa_cleanup_debugfs(udc); diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c index 6dcc1f6..50991e5 100644 --- a/drivers/usb/gadget/r8a66597-udc.c +++ b/drivers/usb/gadget/r8a66597-udc.c @@ -3,7 +3,7 @@ * * Copyright (C) 2006-2009 Renesas Solutions Corp. * - * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> + * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> * * 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 @@ -576,7 +576,11 @@ static void init_controller(struct r8a66597 *r8a66597) u16 endian = r8a66597->pdata->endian ? BIGEND : 0; if (r8a66597->pdata->on_chip) { - r8a66597_bset(r8a66597, 0x04, SYSCFG1); + if (r8a66597->pdata->buswait) + r8a66597_write(r8a66597, r8a66597->pdata->buswait, + SYSCFG1); + else + r8a66597_write(r8a66597, 0x0f, SYSCFG1); r8a66597_bset(r8a66597, HSE, SYSCFG0); r8a66597_bclr(r8a66597, USBE, SYSCFG0); @@ -618,6 +622,7 @@ static void disable_controller(struct r8a66597 *r8a66597) { if (r8a66597->pdata->on_chip) { r8a66597_bset(r8a66597, SCKE, SYSCFG0); + r8a66597_bclr(r8a66597, UTST, TESTMODE); /* disable interrupts */ r8a66597_write(r8a66597, 0, INTENB0); @@ -635,6 +640,7 @@ static void disable_controller(struct r8a66597 *r8a66597) r8a66597_bclr(r8a66597, SCKE, SYSCFG0); } else { + r8a66597_bclr(r8a66597, UTST, TESTMODE); r8a66597_bclr(r8a66597, SCKE, SYSCFG0); udelay(1); r8a66597_bclr(r8a66597, PLLC, SYSCFG0); @@ -999,10 +1005,29 @@ static void clear_feature(struct r8a66597 *r8a66597, static void set_feature(struct r8a66597 *r8a66597, struct usb_ctrlrequest *ctrl) { + u16 tmp; + int timeout = 3000; switch (ctrl->bRequestType & USB_RECIP_MASK) { case USB_RECIP_DEVICE: - control_end(r8a66597, 1); + switch (le16_to_cpu(ctrl->wValue)) { + case USB_DEVICE_TEST_MODE: + control_end(r8a66597, 1); + /* Wait for the completion of status stage */ + do { + tmp = r8a66597_read(r8a66597, INTSTS0) & CTSQ; + udelay(1); + } while (tmp != CS_IDST || timeout-- > 0); + + if (tmp == CS_IDST) + r8a66597_bset(r8a66597, + le16_to_cpu(ctrl->wIndex >> 8), + TESTMODE); + break; + default: + pipe_stall(r8a66597, 0); + break; + } break; case USB_RECIP_INTERFACE: control_end(r8a66597, 1); @@ -1410,7 +1435,7 @@ static struct usb_ep_ops r8a66597_ep_ops = { /*-------------------------------------------------------------------------*/ static struct r8a66597 *the_controller; -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int r8a66597_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct r8a66597 *r8a66597 = the_controller; @@ -1444,6 +1469,7 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, goto error; } + init_controller(r8a66597); r8a66597_bset(r8a66597, VBSE, INTENB0); if (r8a66597_read(r8a66597, INTSTS0) & VBSTS) { r8a66597_start_xclock(r8a66597); @@ -1462,9 +1488,8 @@ error: return retval; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int r8a66597_stop(struct usb_gadget_driver *driver) { struct r8a66597 *r8a66597 = the_controller; unsigned long flags; @@ -1475,20 +1500,16 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) spin_lock_irqsave(&r8a66597->lock, flags); if (r8a66597->gadget.speed != USB_SPEED_UNKNOWN) r8a66597_usb_disconnect(r8a66597); - spin_unlock_irqrestore(&r8a66597->lock, flags); - r8a66597_bclr(r8a66597, VBSE, INTENB0); + disable_controller(r8a66597); + spin_unlock_irqrestore(&r8a66597->lock, flags); driver->unbind(&r8a66597->gadget); - init_controller(r8a66597); - disable_controller(r8a66597); - device_del(&r8a66597->gadget.dev); r8a66597->driver = NULL; return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); /*-------------------------------------------------------------------------*/ static int r8a66597_get_frame(struct usb_gadget *_gadget) @@ -1497,14 +1518,33 @@ static int r8a66597_get_frame(struct usb_gadget *_gadget) return r8a66597_read(r8a66597, FRMNUM) & 0x03FF; } +static int r8a66597_pullup(struct usb_gadget *gadget, int is_on) +{ + struct r8a66597 *r8a66597 = gadget_to_r8a66597(gadget); + unsigned long flags; + + spin_lock_irqsave(&r8a66597->lock, flags); + if (is_on) + r8a66597_bset(r8a66597, DPRPU, SYSCFG0); + else + r8a66597_bclr(r8a66597, DPRPU, SYSCFG0); + spin_unlock_irqrestore(&r8a66597->lock, flags); + + return 0; +} + static struct usb_gadget_ops r8a66597_gadget_ops = { .get_frame = r8a66597_get_frame, + .start = r8a66597_start, + .stop = r8a66597_stop, + .pullup = r8a66597_pullup, }; static int __exit r8a66597_remove(struct platform_device *pdev) { struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev); + usb_del_gadget_udc(&r8a66597->gadget); del_timer_sync(&r8a66597->timer); iounmap(r8a66597->reg); free_irq(platform_get_irq(pdev, 0), r8a66597); @@ -1645,11 +1685,15 @@ static int __init r8a66597_probe(struct platform_device *pdev) goto clean_up3; r8a66597->ep0_req->complete = nop_completion; - init_controller(r8a66597); + ret = usb_add_gadget_udc(&pdev->dev, &r8a66597->gadget); + if (ret) + goto err_add_udc; dev_info(&pdev->dev, "version %s\n", DRIVER_VERSION); return 0; +err_add_udc: + r8a66597_free_request(&r8a66597->ep[0].ep, r8a66597->ep0_req); clean_up3: free_irq(irq, r8a66597); clean_up2: @@ -1679,6 +1723,7 @@ static struct platform_driver r8a66597_driver = { .name = (char *) udc_name, }, }; +MODULE_ALIAS("platform:r8a66597_udc"); static int __init r8a66597_udc_init(void) { diff --git a/drivers/usb/gadget/r8a66597-udc.h b/drivers/usb/gadget/r8a66597-udc.h index 5fc22e0..503f766 100644 --- a/drivers/usb/gadget/r8a66597-udc.h +++ b/drivers/usb/gadget/r8a66597-udc.h @@ -3,7 +3,7 @@ * * Copyright (C) 2007-2009 Renesas Solutions Corp. * - * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> + * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> * * 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 diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 0dfee28..8bdee67 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -2574,7 +2574,7 @@ static int s3c_hsotg_corereset(struct s3c_hsotg *hsotg) return 0; } -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int s3c_hsotg_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct s3c_hsotg *hsotg = our_hsotg; @@ -2745,9 +2745,8 @@ err: hsotg->gadget.dev.driver = NULL; return ret; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int s3c_hsotg_stop(struct usb_gadget_driver *driver) { struct s3c_hsotg *hsotg = our_hsotg; int ep; @@ -2775,7 +2774,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); static int s3c_hsotg_gadget_getframe(struct usb_gadget *gadget) { @@ -2784,6 +2782,8 @@ static int s3c_hsotg_gadget_getframe(struct usb_gadget *gadget) static struct usb_gadget_ops s3c_hsotg_gadget_ops = { .get_frame = s3c_hsotg_gadget_getframe, + .start = s3c_hsotg_start, + .stop = s3c_hsotg_stop, }; /** @@ -3403,6 +3403,10 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev) for (epnum = 0; epnum < S3C_HSOTG_EPS; epnum++) s3c_hsotg_initep(hsotg, &hsotg->eps[epnum], epnum); + ret = usb_add_gadget_udc(&pdev->dev, &hsotg->gadget); + if (ret) + goto err_add_udc; + s3c_hsotg_create_debug(hsotg); s3c_hsotg_dump(hsotg); @@ -3410,6 +3414,11 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev) our_hsotg = hsotg; return 0; +err_add_udc: + s3c_hsotg_gate(pdev, false); + clk_disable(hsotg->clk); + clk_put(hsotg->clk); + err_regs: iounmap(hsotg->regs); @@ -3427,6 +3436,8 @@ static int __devexit s3c_hsotg_remove(struct platform_device *pdev) { struct s3c_hsotg *hsotg = platform_get_drvdata(pdev); + usb_del_gadget_udc(&hsotg->gadget); + s3c_hsotg_delete_debug(hsotg); usb_gadget_unregister_driver(hsotg->driver); diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c index d5e3e1e..3fa717c 100644 --- a/drivers/usb/gadget/s3c-hsudc.c +++ b/drivers/usb/gadget/s3c-hsudc.c @@ -1133,7 +1133,7 @@ static irqreturn_t s3c_hsudc_irq(int irq, void *_dev) return IRQ_HANDLED; } -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int s3c_hsudc_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct s3c_hsudc *hsudc = the_controller; @@ -1181,9 +1181,8 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, return 0; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int s3c_hsudc_stop(struct usb_gadget_driver *driver) { struct s3c_hsudc *hsudc = the_controller; unsigned long flags; @@ -1210,7 +1209,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) driver->driver.name); return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); static inline u32 s3c_hsudc_read_frameno(struct s3c_hsudc *hsudc) { @@ -1224,6 +1222,8 @@ static int s3c_hsudc_gadget_getframe(struct usb_gadget *gadget) static struct usb_gadget_ops s3c_hsudc_gadget_ops = { .get_frame = s3c_hsudc_gadget_getframe, + .start = s3c_hsudc_start, + .stop = s3c_hsudc_stop, }; static int s3c_hsudc_probe(struct platform_device *pdev) @@ -1311,7 +1311,15 @@ static int s3c_hsudc_probe(struct platform_device *pdev) disable_irq(hsudc->irq); local_irq_enable(); + + ret = usb_add_gadget_udc(&pdev->dev, &hsudc->gadget); + if (ret) + goto err_add_udc; + return 0; +err_add_udc: + clk_disable(hsudc->uclk); + clk_put(hsudc->uclk); err_clk: free_irq(hsudc->irq, hsudc); err_irq: @@ -1333,6 +1341,7 @@ static struct platform_driver s3c_hsudc_driver = { }, .probe = s3c_hsudc_probe, }; +MODULE_ALIAS("platform:s3c-hsudc"); static int __init s3c_hsudc_modinit(void) { diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c index 100f263..85c1b0d 100644 --- a/drivers/usb/gadget/s3c2410_udc.c +++ b/drivers/usb/gadget/s3c2410_udc.c @@ -1552,6 +1552,10 @@ static int s3c2410_vbus_draw(struct usb_gadget *_gadget, unsigned ma) return -ENOTSUPP; } +static int s3c2410_udc_start(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)); +static int s3c2410_udc_stop(struct usb_gadget_driver *driver); + static const struct usb_gadget_ops s3c2410_ops = { .get_frame = s3c2410_udc_get_frame, .wakeup = s3c2410_udc_wakeup, @@ -1559,6 +1563,8 @@ static const struct usb_gadget_ops s3c2410_ops = { .pullup = s3c2410_udc_pullup, .vbus_session = s3c2410_udc_vbus_session, .vbus_draw = s3c2410_vbus_draw, + .start = s3c2410_udc_start, + .stop = s3c2410_udc_stop, }; static void s3c2410_udc_command(enum s3c2410_udc_cmd_e cmd) @@ -1567,7 +1573,7 @@ static void s3c2410_udc_command(enum s3c2410_udc_cmd_e cmd) return; if (udc_info->udc_command) { - udc_info->udc_command(S3C2410_UDC_P_DISABLE); + udc_info->udc_command(cmd); } else if (gpio_is_valid(udc_info->pullup_pin)) { int value; @@ -1672,10 +1678,7 @@ static void s3c2410_udc_enable(struct s3c2410_udc *dev) s3c2410_udc_command(S3C2410_UDC_P_ENABLE); } -/* - * usb_gadget_probe_driver - */ -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int s3c2410_udc_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { struct s3c2410_udc *udc = the_controller; @@ -1730,12 +1733,8 @@ register_error: udc->gadget.dev.driver = NULL; return retval; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -/* - * usb_gadget_unregister_driver - */ -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int s3c2410_udc_stop(struct usb_gadget_driver *driver) { struct s3c2410_udc *udc = the_controller; @@ -1955,6 +1954,10 @@ static int s3c2410_udc_probe(struct platform_device *pdev) goto err_vbus_irq; } + retval = usb_add_gadget_udc(&pdev->dev, &udc->gadget); + if (retval) + goto err_add_udc; + if (s3c2410_udc_debugfs_root) { udc->regs_info = debugfs_create_file("registers", S_IRUGO, s3c2410_udc_debugfs_root, @@ -1967,6 +1970,10 @@ static int s3c2410_udc_probe(struct platform_device *pdev) return 0; +err_add_udc: + if (udc_info && !udc_info->udc_command && + gpio_is_valid(udc_info->pullup_pin)) + gpio_free(udc_info->pullup_pin); err_vbus_irq: if (udc_info && udc_info->vbus_pin > 0) free_irq(gpio_to_irq(udc_info->vbus_pin), udc); @@ -1992,6 +1999,8 @@ static int s3c2410_udc_remove(struct platform_device *pdev) unsigned int irq; dev_dbg(&pdev->dev, "%s()\n", __func__); + + usb_del_gadget_udc(&udc->gadget); if (udc->driver) return -EBUSY; @@ -2048,26 +2057,22 @@ static int s3c2410_udc_resume(struct platform_device *pdev) #define s3c2410_udc_resume NULL #endif -static struct platform_driver udc_driver_2410 = { - .driver = { - .name = "s3c2410-usbgadget", - .owner = THIS_MODULE, - }, - .probe = s3c2410_udc_probe, - .remove = s3c2410_udc_remove, - .suspend = s3c2410_udc_suspend, - .resume = s3c2410_udc_resume, +static const struct platform_device_id s3c_udc_ids[] = { + { "s3c2410-usbgadget", }, + { "s3c2440-usbgadget", }, }; +MODULE_DEVICE_TABLE(platform, s3c_udc_ids); -static struct platform_driver udc_driver_2440 = { +static struct platform_driver udc_driver_24x0 = { .driver = { - .name = "s3c2440-usbgadget", + .name = "s3c24x0-usbgadget", .owner = THIS_MODULE, }, .probe = s3c2410_udc_probe, .remove = s3c2410_udc_remove, .suspend = s3c2410_udc_suspend, .resume = s3c2410_udc_resume, + .id_table = s3c_udc_ids, }; static int __init udc_init(void) @@ -2083,11 +2088,7 @@ static int __init udc_init(void) s3c2410_udc_debugfs_root = NULL; } - retval = platform_driver_register(&udc_driver_2410); - if (retval) - goto err; - - retval = platform_driver_register(&udc_driver_2440); + retval = platform_driver_register(&udc_driver_24x0); if (retval) goto err; @@ -2100,13 +2101,10 @@ err: static void __exit udc_exit(void) { - platform_driver_unregister(&udc_driver_2410); - platform_driver_unregister(&udc_driver_2440); + platform_driver_unregister(&udc_driver_24x0); debugfs_remove(s3c2410_udc_debugfs_root); } -EXPORT_SYMBOL(usb_gadget_unregister_driver); - module_init(udc_init); module_exit(udc_exit); @@ -2114,5 +2112,3 @@ MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_VERSION(DRIVER_VERSION); MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:s3c2410-usbgadget"); -MODULE_ALIAS("platform:s3c2440-usbgadget"); diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index 1ac57a9..ed1b816 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -242,6 +242,7 @@ static struct usb_composite_driver gserial_driver = { .name = "g_serial", .dev = &device_desc, .strings = dev_strings, + .max_speed = USB_SPEED_HIGH, }; static int __init init(void) diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c index 1fa4f70..d3dd227 100644 --- a/drivers/usb/gadget/storage_common.c +++ b/drivers/usb/gadget/storage_common.c @@ -494,7 +494,7 @@ static struct usb_descriptor_header *fsg_hs_function[] = { }; /* Maxpacket and other transfer characteristics vary by speed. */ -static struct usb_endpoint_descriptor * +static __maybe_unused struct usb_endpoint_descriptor * fsg_ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *fs, struct usb_endpoint_descriptor *hs) { diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c index 2ac1d214..dfed4c1 100644 --- a/drivers/usb/gadget/u_ether.c +++ b/drivers/usb/gadget/u_ether.c @@ -97,16 +97,17 @@ struct eth_dev { static unsigned qmult = 5; module_param(qmult, uint, S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(qmult, "queue length multiplier at high speed"); +MODULE_PARM_DESC(qmult, "queue length multiplier at high/super speed"); #else /* full speed (low speed doesn't do bulk) */ #define qmult 1 #endif -/* for dual-speed hardware, use deeper queues at highspeed */ +/* for dual-speed hardware, use deeper queues at high/super speed */ static inline int qlen(struct usb_gadget *gadget) { - if (gadget_is_dualspeed(gadget) && gadget->speed == USB_SPEED_HIGH) + if (gadget_is_dualspeed(gadget) && (gadget->speed == USB_SPEED_HIGH || + gadget->speed == USB_SPEED_SUPER)) return qmult * DEFAULT_QLEN; else return DEFAULT_QLEN; @@ -598,9 +599,10 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb, req->length = length; - /* throttle highspeed IRQ rate back slightly */ + /* throttle high/super speed IRQ rate back slightly */ if (gadget_is_dualspeed(dev->gadget)) - req->no_interrupt = (dev->gadget->speed == USB_SPEED_HIGH) + req->no_interrupt = (dev->gadget->speed == USB_SPEED_HIGH || + dev->gadget->speed == USB_SPEED_SUPER) ? ((atomic_read(&dev->tx_qlen) % qmult) != 0) : 0; @@ -693,8 +695,8 @@ static int eth_stop(struct net_device *net) usb_ep_disable(link->out_ep); if (netif_carrier_ok(net)) { DBG(dev, "host still using in/out endpoints\n"); - usb_ep_enable(link->in_ep, link->in); - usb_ep_enable(link->out_ep, link->out); + usb_ep_enable(link->in_ep); + usb_ep_enable(link->out_ep); } } spin_unlock_irqrestore(&dev->lock, flags); @@ -871,7 +873,7 @@ struct net_device *gether_connect(struct gether *link) return ERR_PTR(-EINVAL); link->in_ep->driver_data = dev; - result = usb_ep_enable(link->in_ep, link->in); + result = usb_ep_enable(link->in_ep); if (result != 0) { DBG(dev, "enable %s --> %d\n", link->in_ep->name, result); @@ -879,7 +881,7 @@ struct net_device *gether_connect(struct gether *link) } link->out_ep->driver_data = dev; - result = usb_ep_enable(link->out_ep, link->out); + result = usb_ep_enable(link->out_ep); if (result != 0) { DBG(dev, "enable %s --> %d\n", link->out_ep->name, result); @@ -969,7 +971,7 @@ void gether_disconnect(struct gether *link) } spin_unlock(&dev->req_lock); link->in_ep->driver_data = NULL; - link->in = NULL; + link->in_ep->desc = NULL; usb_ep_disable(link->out_ep); spin_lock(&dev->req_lock); @@ -984,7 +986,7 @@ void gether_disconnect(struct gether *link) } spin_unlock(&dev->req_lock); link->out_ep->driver_data = NULL; - link->out = NULL; + link->out_ep->desc = NULL; /* finish forgetting about this USB link episode */ dev->header_len = 0; diff --git a/drivers/usb/gadget/u_ether.h b/drivers/usb/gadget/u_ether.h index b56e1e7..c966440 100644 --- a/drivers/usb/gadget/u_ether.h +++ b/drivers/usb/gadget/u_ether.h @@ -52,10 +52,6 @@ struct gether { struct usb_ep *in_ep; struct usb_ep *out_ep; - /* descriptors match device speed at gether_connect() time */ - struct usb_endpoint_descriptor *in; - struct usb_endpoint_descriptor *out; - bool is_zlp_ok; u16 cdc_filter; diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c index 40f7716..a8aa469 100644 --- a/drivers/usb/gadget/u_serial.c +++ b/drivers/usb/gadget/u_serial.c @@ -1247,12 +1247,12 @@ int gserial_connect(struct gserial *gser, u8 port_num) port = ports[port_num].port; /* activate the endpoints */ - status = usb_ep_enable(gser->in, gser->in_desc); + status = usb_ep_enable(gser->in); if (status < 0) return status; gser->in->driver_data = port; - status = usb_ep_enable(gser->out, gser->out_desc); + status = usb_ep_enable(gser->out); if (status < 0) goto fail_out; gser->out->driver_data = port; diff --git a/drivers/usb/gadget/u_serial.h b/drivers/usb/gadget/u_serial.h index 300f0ed..9b0fe64 100644 --- a/drivers/usb/gadget/u_serial.h +++ b/drivers/usb/gadget/u_serial.h @@ -35,8 +35,6 @@ struct gserial { struct usb_ep *in; struct usb_ep *out; - struct usb_endpoint_descriptor *in_desc; - struct usb_endpoint_descriptor *out_desc; /* REVISIT avoid this CDC-ACM support harder ... */ struct usb_cdc_line_coding port_line_coding; /* 9600-8-N-1 etc */ diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c new file mode 100644 index 0000000..05ba472 --- /dev/null +++ b/drivers/usb/gadget/udc-core.c @@ -0,0 +1,484 @@ +/** + * udc.c - Core UDC Framework + * + * Copyright (C) 2010 Texas Instruments + * Author: Felipe Balbi <balbi@ti.com> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. + * + * 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, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/list.h> +#include <linux/err.h> + +#include <linux/usb/ch9.h> +#include <linux/usb/gadget.h> + +/** + * struct usb_udc - describes one usb device controller + * @driver - the gadget driver pointer. For use by the class code + * @dev - the child device to the actual controller + * @gadget - the gadget. For use by the class code + * @list - for use by the udc class driver + * + * This represents the internal data structure which is used by the UDC-class + * to hold information about udc driver and gadget together. + */ +struct usb_udc { + struct usb_gadget_driver *driver; + struct usb_gadget *gadget; + struct device dev; + struct list_head list; +}; + +static struct class *udc_class; +static LIST_HEAD(udc_list); +static DEFINE_MUTEX(udc_lock); + +/* ------------------------------------------------------------------------- */ + +/** + * usb_gadget_start - tells usb device controller to start up + * @gadget: The gadget we want to get started + * @driver: The driver we want to bind to @gadget + * @bind: The bind function for @driver + * + * This call is issued by the UDC Class driver when it's about + * to register a gadget driver to the device controller, before + * calling gadget driver's bind() method. + * + * It allows the controller to be powered off until strictly + * necessary to have it powered on. + * + * Returns zero on success, else negative errno. + */ +static inline int usb_gadget_start(struct usb_gadget *gadget, + struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)) +{ + return gadget->ops->start(driver, bind); +} + +/** + * usb_gadget_udc_start - tells usb device controller to start up + * @gadget: The gadget we want to get started + * @driver: The driver we want to bind to @gadget + * + * This call is issued by the UDC Class driver when it's about + * to register a gadget driver to the device controller, before + * calling gadget driver's bind() method. + * + * It allows the controller to be powered off until strictly + * necessary to have it powered on. + * + * Returns zero on success, else negative errno. + */ +static inline int usb_gadget_udc_start(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) +{ + return gadget->ops->udc_start(gadget, driver); +} + +/** + * usb_gadget_stop - tells usb device controller we don't need it anymore + * @gadget: The device we want to stop activity + * @driver: The driver to unbind from @gadget + * + * This call is issued by the UDC Class driver after calling + * gadget driver's unbind() method. + * + * The details are implementation specific, but it can go as + * far as powering off UDC completely and disable its data + * line pullups. + */ +static inline void usb_gadget_stop(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) +{ + gadget->ops->stop(driver); +} + +/** + * usb_gadget_udc_stop - tells usb device controller we don't need it anymore + * @gadget: The device we want to stop activity + * @driver: The driver to unbind from @gadget + * + * This call is issued by the UDC Class driver after calling + * gadget driver's unbind() method. + * + * The details are implementation specific, but it can go as + * far as powering off UDC completely and disable its data + * line pullups. + */ +static inline void usb_gadget_udc_stop(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) +{ + gadget->ops->udc_stop(gadget, driver); +} + +/** + * usb_udc_release - release the usb_udc struct + * @dev: the dev member within usb_udc + * + * This is called by driver's core in order to free memory once the last + * reference is released. + */ +static void usb_udc_release(struct device *dev) +{ + struct usb_udc *udc; + + udc = container_of(dev, struct usb_udc, dev); + dev_dbg(dev, "releasing '%s'\n", dev_name(dev)); + kfree(udc); +} + +static const struct attribute_group *usb_udc_attr_groups[]; +/** + * usb_add_gadget_udc - adds a new gadget to the udc class driver list + * @parent: the parent device to this udc. Usually the controller + * driver's device. + * @gadget: the gadget to be added to the list + * + * Returns zero on success, negative errno otherwise. + */ +int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget) +{ + struct usb_udc *udc; + int ret = -ENOMEM; + + udc = kzalloc(sizeof(*udc), GFP_KERNEL); + if (!udc) + goto err1; + + device_initialize(&udc->dev); + udc->dev.release = usb_udc_release; + udc->dev.class = udc_class; + udc->dev.groups = usb_udc_attr_groups; + udc->dev.parent = parent; + ret = dev_set_name(&udc->dev, "%s", kobject_name(&parent->kobj)); + if (ret) + goto err2; + + udc->gadget = gadget; + + mutex_lock(&udc_lock); + list_add_tail(&udc->list, &udc_list); + + ret = device_add(&udc->dev); + if (ret) + goto err3; + + mutex_unlock(&udc_lock); + + return 0; +err3: + list_del(&udc->list); + mutex_unlock(&udc_lock); + +err2: + put_device(&udc->dev); + +err1: + return ret; +} +EXPORT_SYMBOL_GPL(usb_add_gadget_udc); + +static int udc_is_newstyle(struct usb_udc *udc) +{ + if (udc->gadget->ops->udc_start && udc->gadget->ops->udc_stop) + return 1; + return 0; +} + + +static void usb_gadget_remove_driver(struct usb_udc *udc) +{ + dev_dbg(&udc->dev, "unregistering UDC driver [%s]\n", + udc->gadget->name); + + kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE); + + if (udc_is_newstyle(udc)) { + usb_gadget_disconnect(udc->gadget); + udc->driver->unbind(udc->gadget); + usb_gadget_udc_stop(udc->gadget, udc->driver); + + } else { + usb_gadget_stop(udc->gadget, udc->driver); + } + + udc->driver = NULL; + udc->dev.driver = NULL; +} + +/** + * usb_del_gadget_udc - deletes @udc from udc_list + * @gadget: the gadget to be removed. + * + * This, will call usb_gadget_unregister_driver() if + * the @udc is still busy. + */ +void usb_del_gadget_udc(struct usb_gadget *gadget) +{ + struct usb_udc *udc = NULL; + + mutex_lock(&udc_lock); + list_for_each_entry(udc, &udc_list, list) + if (udc->gadget == gadget) + goto found; + + dev_err(gadget->dev.parent, "gadget not registered.\n"); + mutex_unlock(&udc_lock); + + return; + +found: + dev_vdbg(gadget->dev.parent, "unregistering gadget\n"); + + list_del(&udc->list); + mutex_unlock(&udc_lock); + + if (udc->driver) + usb_gadget_remove_driver(udc); + + kobject_uevent(&udc->dev.kobj, KOBJ_REMOVE); + device_unregister(&udc->dev); +} +EXPORT_SYMBOL_GPL(usb_del_gadget_udc); + +/* ------------------------------------------------------------------------- */ + +int usb_gadget_probe_driver(struct usb_gadget_driver *driver, + int (*bind)(struct usb_gadget *)) +{ + struct usb_udc *udc = NULL; + int ret; + + if (!driver || !bind || !driver->setup) + return -EINVAL; + + mutex_lock(&udc_lock); + list_for_each_entry(udc, &udc_list, list) { + /* For now we take the first one */ + if (!udc->driver) + goto found; + } + + pr_debug("couldn't find an available UDC\n"); + mutex_unlock(&udc_lock); + return -ENODEV; + +found: + dev_dbg(&udc->dev, "registering UDC driver [%s]\n", + driver->function); + + udc->driver = driver; + udc->dev.driver = &driver->driver; + + if (udc_is_newstyle(udc)) { + ret = bind(udc->gadget); + if (ret) + goto err1; + ret = usb_gadget_udc_start(udc->gadget, driver); + if (ret) { + driver->unbind(udc->gadget); + goto err1; + } + usb_gadget_connect(udc->gadget); + } else { + + ret = usb_gadget_start(udc->gadget, driver, bind); + if (ret) + goto err1; + + } + + kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE); + mutex_unlock(&udc_lock); + return 0; + +err1: + dev_err(&udc->dev, "failed to start %s: %d\n", + udc->driver->function, ret); + udc->driver = NULL; + udc->dev.driver = NULL; + mutex_unlock(&udc_lock); + return ret; +} +EXPORT_SYMBOL_GPL(usb_gadget_probe_driver); + +int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +{ + struct usb_udc *udc = NULL; + int ret = -ENODEV; + + if (!driver || !driver->unbind) + return -EINVAL; + + mutex_lock(&udc_lock); + list_for_each_entry(udc, &udc_list, list) + if (udc->driver == driver) { + usb_gadget_remove_driver(udc); + ret = 0; + break; + } + + mutex_unlock(&udc_lock); + return ret; +} +EXPORT_SYMBOL_GPL(usb_gadget_unregister_driver); + +/* ------------------------------------------------------------------------- */ + +static ssize_t usb_udc_srp_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t n) +{ + struct usb_udc *udc = dev_get_drvdata(dev); + + if (sysfs_streq(buf, "1")) + usb_gadget_wakeup(udc->gadget); + + return n; +} +static DEVICE_ATTR(srp, S_IWUSR, NULL, usb_udc_srp_store); + +static ssize_t usb_udc_softconn_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t n) +{ + struct usb_udc *udc = dev_get_drvdata(dev); + + if (sysfs_streq(buf, "connect")) { + usb_gadget_connect(udc->gadget); + } else if (sysfs_streq(buf, "disconnect")) { + usb_gadget_disconnect(udc->gadget); + } else { + dev_err(dev, "unsupported command '%s'\n", buf); + return -EINVAL; + } + + return n; +} +static DEVICE_ATTR(soft_connect, S_IWUSR, NULL, usb_udc_softconn_store); + +static ssize_t usb_udc_speed_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_udc *udc = container_of(dev, struct usb_udc, dev); + struct usb_gadget *gadget = udc->gadget; + + switch (gadget->speed) { + case USB_SPEED_LOW: + return snprintf(buf, PAGE_SIZE, "low-speed\n"); + case USB_SPEED_FULL: + return snprintf(buf, PAGE_SIZE, "full-speed\n"); + case USB_SPEED_HIGH: + return snprintf(buf, PAGE_SIZE, "high-speed\n"); + case USB_SPEED_WIRELESS: + return snprintf(buf, PAGE_SIZE, "wireless\n"); + case USB_SPEED_SUPER: + return snprintf(buf, PAGE_SIZE, "super-speed\n"); + case USB_SPEED_UNKNOWN: /* FALLTHROUGH */ + default: + return snprintf(buf, PAGE_SIZE, "UNKNOWN\n"); + } +} +static DEVICE_ATTR(speed, S_IRUSR, usb_udc_speed_show, NULL); + +#define USB_UDC_ATTR(name) \ +ssize_t usb_udc_##name##_show(struct device *dev, \ + struct device_attribute *attr, char *buf) \ +{ \ + struct usb_udc *udc = container_of(dev, struct usb_udc, dev); \ + struct usb_gadget *gadget = udc->gadget; \ + \ + return snprintf(buf, PAGE_SIZE, "%d\n", gadget->name); \ +} \ +static DEVICE_ATTR(name, S_IRUSR, usb_udc_##name##_show, NULL) + +static USB_UDC_ATTR(is_dualspeed); +static USB_UDC_ATTR(is_otg); +static USB_UDC_ATTR(is_a_peripheral); +static USB_UDC_ATTR(b_hnp_enable); +static USB_UDC_ATTR(a_hnp_support); +static USB_UDC_ATTR(a_alt_hnp_support); + +static struct attribute *usb_udc_attrs[] = { + &dev_attr_srp.attr, + &dev_attr_soft_connect.attr, + &dev_attr_speed.attr, + + &dev_attr_is_dualspeed.attr, + &dev_attr_is_otg.attr, + &dev_attr_is_a_peripheral.attr, + &dev_attr_b_hnp_enable.attr, + &dev_attr_a_hnp_support.attr, + &dev_attr_a_alt_hnp_support.attr, + NULL, +}; + +static const struct attribute_group usb_udc_attr_group = { + .attrs = usb_udc_attrs, +}; + +static const struct attribute_group *usb_udc_attr_groups[] = { + &usb_udc_attr_group, + NULL, +}; + +static int usb_udc_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + struct usb_udc *udc = container_of(dev, struct usb_udc, dev); + int ret; + + ret = add_uevent_var(env, "USB_UDC_NAME=%s", udc->gadget->name); + if (ret) { + dev_err(dev, "failed to add uevent USB_UDC_NAME\n"); + return ret; + } + + if (udc->driver) { + ret = add_uevent_var(env, "USB_UDC_DRIVER=%s", + udc->driver->function); + if (ret) { + dev_err(dev, "failed to add uevent USB_UDC_DRIVER\n"); + return ret; + } + } + + return 0; +} + +static int __init usb_udc_init(void) +{ + udc_class = class_create(THIS_MODULE, "udc"); + if (IS_ERR(udc_class)) { + pr_err("failed to create udc class --> %ld\n", + PTR_ERR(udc_class)); + return PTR_ERR(udc_class); + } + + udc_class->dev_uevent = usb_udc_uevent; + return 0; +} +subsys_initcall(usb_udc_init); + +static void __exit usb_udc_exit(void) +{ + class_destroy(udc_class); +} +module_exit(usb_udc_exit); + +MODULE_DESCRIPTION("UDC Framework"); +MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/gadget/webcam.c b/drivers/usb/gadget/webcam.c index a5a0fdb..df6882d 100644 --- a/drivers/usb/gadget/webcam.c +++ b/drivers/usb/gadget/webcam.c @@ -373,6 +373,7 @@ static struct usb_composite_driver webcam_driver = { .name = "g_webcam", .dev = &webcam_device_descriptor, .strings = webcam_device_strings, + .max_speed = USB_SPEED_HIGH, .unbind = webcam_unbind, }; diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c index 6d16db9..00e2fd2 100644 --- a/drivers/usb/gadget/zero.c +++ b/drivers/usb/gadget/zero.c @@ -340,6 +340,7 @@ static struct usb_composite_driver zero_driver = { .name = "zero", .dev = &device_desc, .strings = dev_strings, + .max_speed = USB_SPEED_SUPER, .unbind = zero_unbind, .suspend = zero_suspend, .resume = zero_resume, diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index f8030ee..f72ae0b 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -94,7 +94,8 @@ static const char hcd_name [] = "ehci_hcd"; #define EHCI_IAA_MSECS 10 /* arbitrary */ #define EHCI_IO_JIFFIES (HZ/10) /* io watchdog > irq_thresh */ #define EHCI_ASYNC_JIFFIES (HZ/20) /* async idle timeout */ -#define EHCI_SHRINK_FRAMES 5 /* async qh unlink delay */ +#define EHCI_SHRINK_JIFFIES (DIV_ROUND_UP(HZ, 200) + 1) + /* 200-ms async qh unlink delay */ /* Initial IRQ latency: faster than hw default */ static int log2_irq_thresh = 0; // 0 to 6 @@ -114,7 +115,7 @@ MODULE_PARM_DESC (ignore_oc, "ignore bogus hardware overcurrent indications"); /* for link power management(LPM) feature */ static unsigned int hird; module_param(hird, int, S_IRUGO); -MODULE_PARM_DESC(hird, "host initiated resume duration, +1 for each 75us\n"); +MODULE_PARM_DESC(hird, "host initiated resume duration, +1 for each 75us"); #define INTR_MASK (STS_IAA | STS_FATAL | STS_PCD | STS_ERR | STS_INT) @@ -152,10 +153,7 @@ timer_action(struct ehci_hcd *ehci, enum ehci_timer_action action) break; /* case TIMER_ASYNC_SHRINK: */ default: - /* add a jiffie since we synch against the - * 8 KHz uframe counter. - */ - t = DIV_ROUND_UP(EHCI_SHRINK_FRAMES * HZ, 1000) + 1; + t = EHCI_SHRINK_JIFFIES; break; } mod_timer(&ehci->watchdog, t + jiffies); @@ -340,6 +338,7 @@ static void ehci_work(struct ehci_hcd *ehci); #include "ehci-mem.c" #include "ehci-q.c" #include "ehci-sched.c" +#include "ehci-sysfs.c" /*-------------------------------------------------------------------------*/ @@ -524,7 +523,7 @@ static void ehci_stop (struct usb_hcd *hcd) ehci_reset (ehci); spin_unlock_irq(&ehci->lock); - remove_companion_file(ehci); + remove_sysfs_files(ehci); remove_debug_files (ehci); /* root hub is shut down separately (first, when possible) */ @@ -575,6 +574,12 @@ static int ehci_init(struct usb_hcd *hcd) hcc_params = ehci_readl(ehci, &ehci->caps->hcc_params); /* + * by default set standard 80% (== 100 usec/uframe) max periodic + * bandwidth as required by USB 2.0 + */ + ehci->uframe_periodic_max = 100; + + /* * hw default: 1K periodic list heads, one per frame. * periodic_size can shrink by USBCMD update if hcc_params allows. */ @@ -758,7 +763,7 @@ static int ehci_run (struct usb_hcd *hcd) * since the class device isn't created that early. */ create_debug_files(ehci); - create_companion_file(ehci); + create_sysfs_files(ehci); return 0; } diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index ea6184b..bf2c8f6 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -471,29 +471,6 @@ static int ehci_bus_resume (struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ -/* Display the ports dedicated to the companion controller */ -static ssize_t show_companion(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct ehci_hcd *ehci; - int nports, index, n; - int count = PAGE_SIZE; - char *ptr = buf; - - ehci = hcd_to_ehci(bus_to_hcd(dev_get_drvdata(dev))); - nports = HCS_N_PORTS(ehci->hcs_params); - - for (index = 0; index < nports; ++index) { - if (test_bit(index, &ehci->companion_ports)) { - n = scnprintf(ptr, count, "%d\n", index + 1); - ptr += n; - count -= n; - } - } - return ptr - buf; -} - /* * Sets the owner of a port */ @@ -528,58 +505,6 @@ static void set_owner(struct ehci_hcd *ehci, int portnum, int new_owner) } } -/* - * Dedicate or undedicate a port to the companion controller. - * Syntax is "[-]portnum", where a leading '-' sign means - * return control of the port to the EHCI controller. - */ -static ssize_t store_companion(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct ehci_hcd *ehci; - int portnum, new_owner; - - ehci = hcd_to_ehci(bus_to_hcd(dev_get_drvdata(dev))); - new_owner = PORT_OWNER; /* Owned by companion */ - if (sscanf(buf, "%d", &portnum) != 1) - return -EINVAL; - if (portnum < 0) { - portnum = - portnum; - new_owner = 0; /* Owned by EHCI */ - } - if (portnum <= 0 || portnum > HCS_N_PORTS(ehci->hcs_params)) - return -ENOENT; - portnum--; - if (new_owner) - set_bit(portnum, &ehci->companion_ports); - else - clear_bit(portnum, &ehci->companion_ports); - set_owner(ehci, portnum, new_owner); - return count; -} -static DEVICE_ATTR(companion, 0644, show_companion, store_companion); - -static inline int create_companion_file(struct ehci_hcd *ehci) -{ - int i = 0; - - /* with integrated TT there is no companion! */ - if (!ehci_is_TDI(ehci)) - i = device_create_file(ehci_to_hcd(ehci)->self.controller, - &dev_attr_companion); - return i; -} - -static inline void remove_companion_file(struct ehci_hcd *ehci) -{ - /* with integrated TT there is no companion! */ - if (!ehci_is_TDI(ehci)) - device_remove_file(ehci_to_hcd(ehci)->self.controller, - &dev_attr_companion); -} - - /*-------------------------------------------------------------------------*/ static int check_reset_complete ( @@ -891,10 +816,11 @@ static int ehci_hub_control ( * power switching; they're allowed to just limit the * current. khubd will turn the power back on. */ - if (HCS_PPC (ehci->hcs_params)){ + if ((temp & PORT_OC) && HCS_PPC(ehci->hcs_params)) { ehci_writel(ehci, temp & ~(PORT_RWC_BITS | PORT_POWER), status_reg); + temp = ehci_readl(ehci, status_reg); } } diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c index b5a0bf6..592d5f7 100644 --- a/drivers/usb/host/ehci-msm.c +++ b/drivers/usb/host/ehci-msm.c @@ -40,27 +40,9 @@ static int ehci_msm_reset(struct usb_hcd *hcd) int retval; ehci->caps = USB_CAPLENGTH; - ehci->regs = USB_CAPLENGTH + - HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase)); - dbg_hcs_params(ehci, "reset"); - dbg_hcc_params(ehci, "reset"); - - /* cache the data to minimize the chip reads*/ - ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); - hcd->has_tt = 1; - ehci->sbrn = HCD_USB2; - - retval = ehci_halt(ehci); - if (retval) - return retval; - - /* data structure init */ - retval = ehci_init(hcd); - if (retval) - return retval; - retval = ehci_reset(ehci); + retval = ehci_setup(hcd); if (retval) return retval; diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 5d6bc62..0917e3a 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -103,7 +103,7 @@ qh_update (struct ehci_hcd *ehci, struct ehci_qh *qh, struct ehci_qtd *qtd) if (!(hw->hw_info1 & cpu_to_hc32(ehci, 1 << 14))) { unsigned is_out, epnum; - is_out = !(qtd->hw_token & cpu_to_hc32(ehci, 1 << 8)); + is_out = qh->is_out; epnum = (hc32_to_cpup(ehci, &hw->hw_info1) >> 8) & 0x0f; if (unlikely (!usb_gettoggle (qh->dev, epnum, is_out))) { hw->hw_token &= ~cpu_to_hc32(ehci, QTD_TOGGLE); @@ -946,6 +946,7 @@ done: hw = qh->hw; hw->hw_info1 = cpu_to_hc32(ehci, info1); hw->hw_info2 = cpu_to_hc32(ehci, info2); + qh->is_out = !is_input; usb_settoggle (urb->dev, usb_pipeendpoint (urb->pipe), !is_input, 1); qh_refresh (ehci, qh); return qh; @@ -1231,6 +1232,8 @@ static void start_unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh) prev->hw->hw_next = qh->hw->hw_next; prev->qh_next = qh->qh_next; + if (ehci->qh_scan_next == qh) + ehci->qh_scan_next = qh->qh_next.qh; wmb (); /* If the controller isn't running, we don't have to wait for it */ @@ -1256,53 +1259,49 @@ static void scan_async (struct ehci_hcd *ehci) struct ehci_qh *qh; enum ehci_timer_action action = TIMER_IO_WATCHDOG; - ehci->stamp = ehci_readl(ehci, &ehci->regs->frame_index); timer_action_done (ehci, TIMER_ASYNC_SHRINK); -rescan: stopped = !HC_IS_RUNNING(ehci_to_hcd(ehci)->state); - qh = ehci->async->qh_next.qh; - if (likely (qh != NULL)) { - do { - /* clean any finished work for this qh */ - if (!list_empty(&qh->qtd_list) && (stopped || - qh->stamp != ehci->stamp)) { - int temp; - - /* unlinks could happen here; completion - * reporting drops the lock. rescan using - * the latest schedule, but don't rescan - * qhs we already finished (no looping) - * unless the controller is stopped. - */ - qh = qh_get (qh); - qh->stamp = ehci->stamp; - temp = qh_completions (ehci, qh); - if (qh->needs_rescan) - unlink_async(ehci, qh); - qh_put (qh); - if (temp != 0) { - goto rescan; - } - } - /* unlink idle entries, reducing DMA usage as well - * as HCD schedule-scanning costs. delay for any qh - * we just scanned, there's a not-unusual case that it - * doesn't stay idle for long. - * (plus, avoids some kind of re-activation race.) + ehci->qh_scan_next = ehci->async->qh_next.qh; + while (ehci->qh_scan_next) { + qh = ehci->qh_scan_next; + ehci->qh_scan_next = qh->qh_next.qh; + rescan: + /* clean any finished work for this qh */ + if (!list_empty(&qh->qtd_list)) { + int temp; + + /* + * Unlinks could happen here; completion reporting + * drops the lock. That's why ehci->qh_scan_next + * always holds the next qh to scan; if the next qh + * gets unlinked then ehci->qh_scan_next is adjusted + * in start_unlink_async(). */ - if (list_empty(&qh->qtd_list) - && qh->qh_state == QH_STATE_LINKED) { - if (!ehci->reclaim && (stopped || - ((ehci->stamp - qh->stamp) & 0x1fff) - >= EHCI_SHRINK_FRAMES * 8)) - start_unlink_async(ehci, qh); - else - action = TIMER_ASYNC_SHRINK; - } + qh = qh_get(qh); + temp = qh_completions(ehci, qh); + if (qh->needs_rescan) + unlink_async(ehci, qh); + qh->unlink_time = jiffies + EHCI_SHRINK_JIFFIES; + qh_put(qh); + if (temp != 0) + goto rescan; + } - qh = qh->qh_next.qh; - } while (qh); + /* unlink idle entries, reducing DMA usage as well + * as HCD schedule-scanning costs. delay for any qh + * we just scanned, there's a not-unusual case that it + * doesn't stay idle for long. + * (plus, avoids some kind of re-activation race.) + */ + if (list_empty(&qh->qtd_list) + && qh->qh_state == QH_STATE_LINKED) { + if (!ehci->reclaim && (stopped || + time_after_eq(jiffies, qh->unlink_time))) + start_unlink_async(ehci, qh); + else + action = TIMER_ASYNC_SHRINK; + } } if (action == TIMER_ASYNC_SHRINK) timer_action (ehci, TIMER_ASYNC_SHRINK); diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c index e3374c8..b3958b3 100644 --- a/drivers/usb/host/ehci-s5p.c +++ b/drivers/usb/host/ehci-s5p.c @@ -189,6 +189,100 @@ static void s5p_ehci_shutdown(struct platform_device *pdev) hcd->driver->shutdown(hcd); } +#ifdef CONFIG_PM +static int s5p_ehci_suspend(struct device *dev) +{ + struct s5p_ehci_hcd *s5p_ehci = dev_get_drvdata(dev); + struct usb_hcd *hcd = s5p_ehci->hcd; + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + struct platform_device *pdev = to_platform_device(dev); + struct s5p_ehci_platdata *pdata = pdev->dev.platform_data; + unsigned long flags; + int rc = 0; + + if (time_before(jiffies, ehci->next_statechange)) + msleep(20); + + /* + * Root hub was already suspended. Disable irq emission and + * mark HW unaccessible. The PM and USB cores make sure that + * the root hub is either suspended or stopped. + */ + ehci_prepare_ports_for_controller_suspend(ehci, device_may_wakeup(dev)); + spin_lock_irqsave(&ehci->lock, flags); + ehci_writel(ehci, 0, &ehci->regs->intr_enable); + (void)ehci_readl(ehci, &ehci->regs->intr_enable); + + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + spin_unlock_irqrestore(&ehci->lock, flags); + + if (pdata && pdata->phy_exit) + pdata->phy_exit(pdev, S5P_USB_PHY_HOST); + + return rc; +} + +static int s5p_ehci_resume(struct device *dev) +{ + struct s5p_ehci_hcd *s5p_ehci = dev_get_drvdata(dev); + struct usb_hcd *hcd = s5p_ehci->hcd; + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + struct platform_device *pdev = to_platform_device(dev); + struct s5p_ehci_platdata *pdata = pdev->dev.platform_data; + + if (pdata && pdata->phy_init) + pdata->phy_init(pdev, S5P_USB_PHY_HOST); + + if (time_before(jiffies, ehci->next_statechange)) + msleep(100); + + /* Mark hardware accessible again as we are out of D3 state by now */ + set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + + if (ehci_readl(ehci, &ehci->regs->configured_flag) == FLAG_CF) { + int mask = INTR_MASK; + + ehci_prepare_ports_for_controller_resume(ehci); + if (!hcd->self.root_hub->do_remote_wakeup) + mask &= ~STS_PCD; + ehci_writel(ehci, mask, &ehci->regs->intr_enable); + ehci_readl(ehci, &ehci->regs->intr_enable); + return 0; + } + + usb_root_hub_lost_power(hcd->self.root_hub); + + (void) ehci_halt(ehci); + (void) ehci_reset(ehci); + + /* emptying the schedule aborts any urbs */ + spin_lock_irq(&ehci->lock); + if (ehci->reclaim) + end_unlink_async(ehci); + ehci_work(ehci); + spin_unlock_irq(&ehci->lock); + + ehci_writel(ehci, ehci->command, &ehci->regs->command); + ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag); + ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */ + + /* here we "know" root ports should always stay powered */ + ehci_port_power(ehci, 1); + + hcd->state = HC_STATE_SUSPENDED; + + return 0; +} +#else +#define s5p_ehci_suspend NULL +#define s5p_ehci_resume NULL +#endif + +static const struct dev_pm_ops s5p_ehci_pm_ops = { + .suspend = s5p_ehci_suspend, + .resume = s5p_ehci_resume, +}; + static struct platform_driver s5p_ehci_driver = { .probe = s5p_ehci_probe, .remove = __devexit_p(s5p_ehci_remove), @@ -196,6 +290,7 @@ static struct platform_driver s5p_ehci_driver = { .driver = { .name = "s5p-ehci", .owner = THIS_MODULE, + .pm = &s5p_ehci_pm_ops, } }; diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index 6c9fbe3..2abf854 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -172,7 +172,7 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe) } } #ifdef DEBUG - if (usecs > 100) + if (usecs > ehci->uframe_periodic_max) ehci_err (ehci, "uframe %d sched overrun: %d usecs\n", frame * 8 + uframe, usecs); #endif @@ -709,11 +709,8 @@ static int check_period ( if (uframe >= 8) return 0; - /* - * 80% periodic == 100 usec/uframe available - * convert "usecs we need" to "max already claimed" - */ - usecs = 100 - usecs; + /* convert "usecs we need" to "max already claimed" */ + usecs = ehci->uframe_periodic_max - usecs; /* we "know" 2 and 4 uframe intervals were rejected; so * for period 0, check _every_ microframe in the schedule. @@ -1286,9 +1283,9 @@ itd_slot_ok ( { uframe %= period; do { - /* can't commit more than 80% periodic == 100 usec */ + /* can't commit more than uframe_periodic_max usec */ if (periodic_usecs (ehci, uframe >> 3, uframe & 0x7) - > (100 - usecs)) + > (ehci->uframe_periodic_max - usecs)) return 0; /* we know urb->interval is 2^N uframes */ @@ -1345,7 +1342,7 @@ sitd_slot_ok ( #endif /* check starts (OUT uses more than one) */ - max_used = 100 - stream->usecs; + max_used = ehci->uframe_periodic_max - stream->usecs; for (tmp = stream->raw_mask & 0xff; tmp; tmp >>= 1, uf++) { if (periodic_usecs (ehci, frame, uf) > max_used) return 0; @@ -1354,7 +1351,7 @@ sitd_slot_ok ( /* for IN, check CSPLIT */ if (stream->c_usecs) { uf = uframe & 7; - max_used = 100 - stream->c_usecs; + max_used = ehci->uframe_periodic_max - stream->c_usecs; do { tmp = 1 << uf; tmp <<= 8; diff --git a/drivers/usb/host/ehci-sysfs.c b/drivers/usb/host/ehci-sysfs.c new file mode 100644 index 0000000..14ced00 --- /dev/null +++ b/drivers/usb/host/ehci-sysfs.c @@ -0,0 +1,190 @@ +/* + * Copyright (C) 2007 by Alan Stern + * + * 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. + */ + +/* this file is part of ehci-hcd.c */ + + +/* Display the ports dedicated to the companion controller */ +static ssize_t show_companion(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct ehci_hcd *ehci; + int nports, index, n; + int count = PAGE_SIZE; + char *ptr = buf; + + ehci = hcd_to_ehci(bus_to_hcd(dev_get_drvdata(dev))); + nports = HCS_N_PORTS(ehci->hcs_params); + + for (index = 0; index < nports; ++index) { + if (test_bit(index, &ehci->companion_ports)) { + n = scnprintf(ptr, count, "%d\n", index + 1); + ptr += n; + count -= n; + } + } + return ptr - buf; +} + +/* + * Dedicate or undedicate a port to the companion controller. + * Syntax is "[-]portnum", where a leading '-' sign means + * return control of the port to the EHCI controller. + */ +static ssize_t store_companion(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ehci_hcd *ehci; + int portnum, new_owner; + + ehci = hcd_to_ehci(bus_to_hcd(dev_get_drvdata(dev))); + new_owner = PORT_OWNER; /* Owned by companion */ + if (sscanf(buf, "%d", &portnum) != 1) + return -EINVAL; + if (portnum < 0) { + portnum = - portnum; + new_owner = 0; /* Owned by EHCI */ + } + if (portnum <= 0 || portnum > HCS_N_PORTS(ehci->hcs_params)) + return -ENOENT; + portnum--; + if (new_owner) + set_bit(portnum, &ehci->companion_ports); + else + clear_bit(portnum, &ehci->companion_ports); + set_owner(ehci, portnum, new_owner); + return count; +} +static DEVICE_ATTR(companion, 0644, show_companion, store_companion); + + +/* + * Display / Set uframe_periodic_max + */ +static ssize_t show_uframe_periodic_max(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct ehci_hcd *ehci; + int n; + + ehci = hcd_to_ehci(bus_to_hcd(dev_get_drvdata(dev))); + n = scnprintf(buf, PAGE_SIZE, "%d\n", ehci->uframe_periodic_max); + return n; +} + + +static ssize_t store_uframe_periodic_max(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ehci_hcd *ehci; + unsigned uframe_periodic_max; + unsigned frame, uframe; + unsigned short allocated_max; + unsigned long flags; + ssize_t ret; + + ehci = hcd_to_ehci(bus_to_hcd(dev_get_drvdata(dev))); + if (kstrtouint(buf, 0, &uframe_periodic_max) < 0) + return -EINVAL; + + if (uframe_periodic_max < 100 || uframe_periodic_max >= 125) { + ehci_info(ehci, "rejecting invalid request for " + "uframe_periodic_max=%u\n", uframe_periodic_max); + return -EINVAL; + } + + ret = -EINVAL; + + /* + * lock, so that our checking does not race with possible periodic + * bandwidth allocation through submitting new urbs. + */ + spin_lock_irqsave (&ehci->lock, flags); + + /* + * for request to decrease max periodic bandwidth, we have to check + * every microframe in the schedule to see whether the decrease is + * possible. + */ + if (uframe_periodic_max < ehci->uframe_periodic_max) { + allocated_max = 0; + + for (frame = 0; frame < ehci->periodic_size; ++frame) + for (uframe = 0; uframe < 7; ++uframe) + allocated_max = max(allocated_max, + periodic_usecs (ehci, frame, uframe)); + + if (allocated_max > uframe_periodic_max) { + ehci_info(ehci, + "cannot decrease uframe_periodic_max becase " + "periodic bandwidth is already allocated " + "(%u > %u)\n", + allocated_max, uframe_periodic_max); + goto out_unlock; + } + } + + /* increasing is always ok */ + + ehci_info(ehci, "setting max periodic bandwidth to %u%% " + "(== %u usec/uframe)\n", + 100*uframe_periodic_max/125, uframe_periodic_max); + + if (uframe_periodic_max != 100) + ehci_warn(ehci, "max periodic bandwidth set is non-standard\n"); + + ehci->uframe_periodic_max = uframe_periodic_max; + ret = count; + +out_unlock: + spin_unlock_irqrestore (&ehci->lock, flags); + return ret; +} +static DEVICE_ATTR(uframe_periodic_max, 0644, show_uframe_periodic_max, store_uframe_periodic_max); + + +static inline int create_sysfs_files(struct ehci_hcd *ehci) +{ + struct device *controller = ehci_to_hcd(ehci)->self.controller; + int i = 0; + + /* with integrated TT there is no companion! */ + if (!ehci_is_TDI(ehci)) + i = device_create_file(controller, &dev_attr_companion); + if (i) + goto out; + + i = device_create_file(controller, &dev_attr_uframe_periodic_max); +out: + return i; +} + +static inline void remove_sysfs_files(struct ehci_hcd *ehci) +{ + struct device *controller = ehci_to_hcd(ehci)->self.controller; + + /* with integrated TT there is no companion! */ + if (!ehci_is_TDI(ehci)) + device_remove_file(controller, &dev_attr_companion); + + device_remove_file(controller, &dev_attr_uframe_periodic_max); +} diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index bd6ff48..cc7d337 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -75,6 +75,7 @@ struct ehci_hcd { /* one per controller */ struct ehci_qh *async; struct ehci_qh *dummy; /* For AMD quirk use */ struct ehci_qh *reclaim; + struct ehci_qh *qh_scan_next; unsigned scanning : 1; /* periodic schedule support */ @@ -87,6 +88,8 @@ struct ehci_hcd { /* one per controller */ union ehci_shadow *pshadow; /* mirror hw periodic table */ int next_uframe; /* scan periodic, start here */ unsigned periodic_sched; /* periodic activity count */ + unsigned uframe_periodic_max; /* max periodic time per uframe */ + /* list of itds & sitds completed while clock_frame was still active */ struct list_head cached_itd_list; @@ -117,7 +120,6 @@ struct ehci_hcd { /* one per controller */ struct timer_list iaa_watchdog; struct timer_list watchdog; unsigned long actions; - unsigned stamp; unsigned periodic_stamp; unsigned random_frame; unsigned long next_statechange; @@ -343,6 +345,7 @@ struct ehci_qh { struct ehci_qh *reclaim; /* next to reclaim */ struct ehci_hcd *ehci; + unsigned long unlink_time; /* * Do NOT use atomic operations for QH refcounting. On some CPUs @@ -374,6 +377,7 @@ struct ehci_qh { #define NO_FRAME ((unsigned short)~0) /* pick new start */ struct usb_device *dev; /* access to TT */ + unsigned is_out:1; /* bulk or intr OUT */ unsigned clearing_tt:1; /* Clear-TT-Buf in progress */ }; diff --git a/drivers/usb/host/ohci-sh.c b/drivers/usb/host/ohci-sh.c index f47867f..14cecb5 100644 --- a/drivers/usb/host/ohci-sh.c +++ b/drivers/usb/host/ohci-sh.c @@ -3,7 +3,7 @@ * * Copyright (C) 2008 Renesas Solutions Corp. * - * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> + * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> * * 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 diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index fd93061..a9d3159 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -35,6 +35,8 @@ #define OHCI_INTRSTATUS 0x0c #define OHCI_INTRENABLE 0x10 #define OHCI_INTRDISABLE 0x14 +#define OHCI_FMINTERVAL 0x34 +#define OHCI_HCR (1 << 0) /* host controller reset */ #define OHCI_OCR (1 << 3) /* ownership change request */ #define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */ #define OHCI_CTRL_IR (1 << 8) /* interrupt routing */ @@ -497,6 +499,32 @@ static void __devinit quirk_usb_handoff_ohci(struct pci_dev *pdev) /* reset controller, preserving RWC (and possibly IR) */ writel(control & OHCI_CTRL_MASK, base + OHCI_CONTROL); + readl(base + OHCI_CONTROL); + + /* Some NVIDIA controllers stop working if kept in RESET for too long */ + if (pdev->vendor == PCI_VENDOR_ID_NVIDIA) { + u32 fminterval; + int cnt; + + /* drive reset for at least 50 ms (7.1.7.5) */ + msleep(50); + + /* software reset of the controller, preserving HcFmInterval */ + fminterval = readl(base + OHCI_FMINTERVAL); + writel(OHCI_HCR, base + OHCI_CMDSTATUS); + + /* reset requires max 10 us delay */ + for (cnt = 30; cnt > 0; --cnt) { /* ... allow extra time */ + if ((readl(base + OHCI_CMDSTATUS) & OHCI_HCR) == 0) + break; + udelay(1); + } + writel(fminterval, base + OHCI_FMINTERVAL); + + /* Now we're in the SUSPEND state with all devices reset + * and wakeups and interrupts disabled + */ + } /* * disable interrupts @@ -507,20 +535,34 @@ static void __devinit quirk_usb_handoff_ohci(struct pci_dev *pdev) iounmap(base); } +static const struct dmi_system_id __initconst ehci_dmi_nohandoff_table[] = { + { + /* Pegatron Lucid (ExoPC) */ + .matches = { + DMI_MATCH(DMI_BOARD_NAME, "EXOPG06411"), + DMI_MATCH(DMI_BIOS_VERSION, "Lucid-CE-133"), + }, + }, + { + /* Pegatron Lucid (Ordissimo AIRIS) */ + .matches = { + DMI_MATCH(DMI_BOARD_NAME, "M11JB"), + DMI_MATCH(DMI_BIOS_VERSION, "Lucid-GE-133"), + }, + }, + { } +}; + static void __devinit ehci_bios_handoff(struct pci_dev *pdev, void __iomem *op_reg_base, u32 cap, u8 offset) { int try_handoff = 1, tried_handoff = 0; - /* The Pegatron Lucid (ExoPC) tablet sporadically waits for 90 - * seconds trying the handoff on its unused controller. Skip - * it. */ + /* The Pegatron Lucid tablet sporadically waits for 98 seconds trying + * the handoff on its unused controller. Skip it. */ if (pdev->vendor == 0x8086 && pdev->device == 0x283a) { - const char *dmi_bn = dmi_get_system_info(DMI_BOARD_NAME); - const char *dmi_bv = dmi_get_system_info(DMI_BIOS_VERSION); - if (dmi_bn && !strcmp(dmi_bn, "EXOPG06411") && - dmi_bv && !strcmp(dmi_bv, "Lucid-CE-133")) + if (dmi_check_system(ehci_dmi_nohandoff_table)) try_handoff = 0; } diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 4586369..40a0d8b 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -6,7 +6,7 @@ * Portions Copyright (C) 2004-2005 David Brownell * Portions Copyright (C) 1999 Roman Weissgaerber * - * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> + * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> * * 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 @@ -1438,7 +1438,7 @@ static void packet_write(struct r8a66597 *r8a66597, u16 pipenum) if (pipenum > 0) r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS); if (urb->transfer_buffer) { - r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size); + r8a66597_write_fifo(r8a66597, td->pipe, buf, size); if (!usb_pipebulk(urb->pipe) || td->maxpacket != size) r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr); } @@ -2306,7 +2306,7 @@ static int r8a66597_bus_resume(struct usb_hcd *hcd) dbg("resume port = %d", port); rh->port &= ~USB_PORT_STAT_SUSPEND; - rh->port |= USB_PORT_STAT_C_SUSPEND < 16; + rh->port |= USB_PORT_STAT_C_SUSPEND << 16; r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg); msleep(50); r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg); diff --git a/drivers/usb/host/r8a66597.h b/drivers/usb/host/r8a66597.h index 25563e9..f28782d 100644 --- a/drivers/usb/host/r8a66597.h +++ b/drivers/usb/host/r8a66597.h @@ -201,11 +201,26 @@ static inline void r8a66597_write(struct r8a66597 *r8a66597, u16 val, iowrite16(val, r8a66597->reg + offset); } +static inline void r8a66597_mdfy(struct r8a66597 *r8a66597, + u16 val, u16 pat, unsigned long offset) +{ + u16 tmp; + tmp = r8a66597_read(r8a66597, offset); + tmp = tmp & (~pat); + tmp = tmp | val; + r8a66597_write(r8a66597, tmp, offset); +} + +#define r8a66597_bclr(r8a66597, val, offset) \ + r8a66597_mdfy(r8a66597, 0, val, offset) +#define r8a66597_bset(r8a66597, val, offset) \ + r8a66597_mdfy(r8a66597, val, 0, offset) + static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597, - unsigned long offset, u16 *buf, + struct r8a66597_pipe *pipe, u16 *buf, int len) { - void __iomem *fifoaddr = r8a66597->reg + offset; + void __iomem *fifoaddr = r8a66597->reg + pipe->fifoaddr; unsigned long count; unsigned char *pb; int i; @@ -230,26 +245,15 @@ static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597, iowrite16_rep(fifoaddr, buf, len); if (unlikely(odd)) { buf = &buf[len]; + if (r8a66597->pdata->wr0_shorted_to_wr1) + r8a66597_bclr(r8a66597, MBW_16, pipe->fifosel); iowrite8((unsigned char)*buf, fifoaddr); + if (r8a66597->pdata->wr0_shorted_to_wr1) + r8a66597_bset(r8a66597, MBW_16, pipe->fifosel); } } } -static inline void r8a66597_mdfy(struct r8a66597 *r8a66597, - u16 val, u16 pat, unsigned long offset) -{ - u16 tmp; - tmp = r8a66597_read(r8a66597, offset); - tmp = tmp & (~pat); - tmp = tmp | val; - r8a66597_write(r8a66597, tmp, offset); -} - -#define r8a66597_bclr(r8a66597, val, offset) \ - r8a66597_mdfy(r8a66597, 0, val, offset) -#define r8a66597_bset(r8a66597, val, offset) \ - r8a66597_mdfy(r8a66597, val, 0, offset) - static inline unsigned long get_syscfg_reg(int port) { return port == 0 ? SYSCFG0 : SYSCFG1; diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c index 1f50b44..e9b0f04 100644 --- a/drivers/usb/host/xhci-dbg.c +++ b/drivers/usb/host/xhci-dbg.c @@ -266,11 +266,11 @@ void xhci_debug_trb(struct xhci_hcd *xhci, union xhci_trb *trb) xhci_dbg(xhci, "Interrupter target = 0x%x\n", GET_INTR_TARGET(le32_to_cpu(trb->link.intr_target))); xhci_dbg(xhci, "Cycle bit = %u\n", - (unsigned int) (le32_to_cpu(trb->link.control) & TRB_CYCLE)); + le32_to_cpu(trb->link.control) & TRB_CYCLE); xhci_dbg(xhci, "Toggle cycle bit = %u\n", - (unsigned int) (le32_to_cpu(trb->link.control) & LINK_TOGGLE)); + le32_to_cpu(trb->link.control) & LINK_TOGGLE); xhci_dbg(xhci, "No Snoop bit = %u\n", - (unsigned int) (le32_to_cpu(trb->link.control) & TRB_NO_SNOOP)); + le32_to_cpu(trb->link.control) & TRB_NO_SNOOP); break; case TRB_TYPE(TRB_TRANSFER): address = le64_to_cpu(trb->trans_event.buffer); @@ -284,9 +284,9 @@ void xhci_debug_trb(struct xhci_hcd *xhci, union xhci_trb *trb) address = le64_to_cpu(trb->event_cmd.cmd_trb); xhci_dbg(xhci, "Command TRB pointer = %llu\n", address); xhci_dbg(xhci, "Completion status = %u\n", - (unsigned int) GET_COMP_CODE(le32_to_cpu(trb->event_cmd.status))); + GET_COMP_CODE(le32_to_cpu(trb->event_cmd.status))); xhci_dbg(xhci, "Flags = 0x%x\n", - (unsigned int) le32_to_cpu(trb->event_cmd.flags)); + le32_to_cpu(trb->event_cmd.flags)); break; default: xhci_dbg(xhci, "Unknown TRB with TRB type ID %u\n", @@ -318,10 +318,10 @@ void xhci_debug_segment(struct xhci_hcd *xhci, struct xhci_segment *seg) for (i = 0; i < TRBS_PER_SEGMENT; ++i) { trb = &seg->trbs[i]; xhci_dbg(xhci, "@%016llx %08x %08x %08x %08x\n", addr, - (u32)lower_32_bits(le64_to_cpu(trb->link.segment_ptr)), - (u32)upper_32_bits(le64_to_cpu(trb->link.segment_ptr)), - (unsigned int) le32_to_cpu(trb->link.intr_target), - (unsigned int) le32_to_cpu(trb->link.control)); + lower_32_bits(le64_to_cpu(trb->link.segment_ptr)), + upper_32_bits(le64_to_cpu(trb->link.segment_ptr)), + le32_to_cpu(trb->link.intr_target), + le32_to_cpu(trb->link.control)); addr += sizeof(*trb); } } @@ -402,8 +402,8 @@ void xhci_dbg_erst(struct xhci_hcd *xhci, struct xhci_erst *erst) addr, lower_32_bits(le64_to_cpu(entry->seg_addr)), upper_32_bits(le64_to_cpu(entry->seg_addr)), - (unsigned int) le32_to_cpu(entry->seg_size), - (unsigned int) le32_to_cpu(entry->rsvd)); + le32_to_cpu(entry->seg_size), + le32_to_cpu(entry->rsvd)); addr += sizeof(*entry); } } diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index fcb7f7e..d446886 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -89,8 +89,8 @@ static void xhci_link_segments(struct xhci_hcd *xhci, struct xhci_segment *prev, return; prev->next = next; if (link_trbs) { - prev->trbs[TRBS_PER_SEGMENT-1].link. - segment_ptr = cpu_to_le64(next->dma); + prev->trbs[TRBS_PER_SEGMENT-1].link.segment_ptr = + cpu_to_le64(next->dma); /* Set the last TRB in the segment to have a TRB type ID of Link TRB */ val = le32_to_cpu(prev->trbs[TRBS_PER_SEGMENT-1].link.control); @@ -187,8 +187,8 @@ static struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, if (link_trbs) { /* See section 4.9.2.1 and 6.4.4.1 */ - prev->trbs[TRBS_PER_SEGMENT-1].link. - control |= cpu_to_le32(LINK_TOGGLE); + prev->trbs[TRBS_PER_SEGMENT-1].link.control |= + cpu_to_le32(LINK_TOGGLE); xhci_dbg(xhci, "Wrote link toggle flag to" " segment %p (virtual), 0x%llx (DMA)\n", prev, (unsigned long long)prev->dma); @@ -549,8 +549,8 @@ struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci, addr = cur_ring->first_seg->dma | SCT_FOR_CTX(SCT_PRI_TR) | cur_ring->cycle_state; - stream_info->stream_ctx_array[cur_stream]. - stream_ring = cpu_to_le64(addr); + stream_info->stream_ctx_array[cur_stream].stream_ring = + cpu_to_le64(addr); xhci_dbg(xhci, "Setting stream %d ring ptr to 0x%08llx\n", cur_stream, (unsigned long long) addr); @@ -786,7 +786,7 @@ int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id, xhci_dbg(xhci, "Set slot id %d dcbaa entry %p to 0x%llx\n", slot_id, &xhci->dcbaa->dev_context_ptrs[slot_id], - (unsigned long long) le64_to_cpu(xhci->dcbaa->dev_context_ptrs[slot_id])); + le64_to_cpu(xhci->dcbaa->dev_context_ptrs[slot_id])); return 1; fail: @@ -890,19 +890,19 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *ud ctrl_ctx->add_flags = cpu_to_le32(SLOT_FLAG | EP0_FLAG); /* 3) Only the control endpoint is valid - one endpoint context */ - slot_ctx->dev_info |= cpu_to_le32(LAST_CTX(1) | (u32) udev->route); + slot_ctx->dev_info |= cpu_to_le32(LAST_CTX(1) | udev->route); switch (udev->speed) { case USB_SPEED_SUPER: - slot_ctx->dev_info |= cpu_to_le32((u32) SLOT_SPEED_SS); + slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_SS); break; case USB_SPEED_HIGH: - slot_ctx->dev_info |= cpu_to_le32((u32) SLOT_SPEED_HS); + slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_HS); break; case USB_SPEED_FULL: - slot_ctx->dev_info |= cpu_to_le32((u32) SLOT_SPEED_FS); + slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_FS); break; case USB_SPEED_LOW: - slot_ctx->dev_info |= cpu_to_le32((u32) SLOT_SPEED_LS); + slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_LS); break; case USB_SPEED_WIRELESS: xhci_dbg(xhci, "FIXME xHCI doesn't support wireless speeds\n"); @@ -916,7 +916,7 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *ud port_num = xhci_find_real_port_number(xhci, udev); if (!port_num) return -EINVAL; - slot_ctx->dev_info2 |= cpu_to_le32((u32) ROOT_HUB_PORT(port_num)); + slot_ctx->dev_info2 |= cpu_to_le32(ROOT_HUB_PORT(port_num)); /* Set the port number in the virtual_device to the faked port number */ for (top_dev = udev; top_dev->parent && top_dev->parent->parent; top_dev = top_dev->parent) diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 70cacbb..7113d16 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -113,15 +113,13 @@ static int last_trb(struct xhci_hcd *xhci, struct xhci_ring *ring, if (ring == xhci->event_ring) return trb == &seg->trbs[TRBS_PER_SEGMENT]; else - return (le32_to_cpu(trb->link.control) & TRB_TYPE_BITMASK) - == TRB_TYPE(TRB_LINK); + return TRB_TYPE_LINK_LE32(trb->link.control); } static int enqueue_is_link_trb(struct xhci_ring *ring) { struct xhci_link_trb *link = &ring->enqueue->link; - return ((le32_to_cpu(link->control) & TRB_TYPE_BITMASK) == - TRB_TYPE(TRB_LINK)); + return TRB_TYPE_LINK_LE32(link->control); } /* Updates trb to point to the next TRB in the ring, and updates seg if the next @@ -372,7 +370,7 @@ static struct xhci_segment *find_trb_seg( while (cur_seg->trbs > trb || &cur_seg->trbs[TRBS_PER_SEGMENT - 1] < trb) { generic_trb = &cur_seg->trbs[TRBS_PER_SEGMENT - 1].generic; - if (le32_to_cpu(generic_trb->field[3]) & LINK_TOGGLE) + if (generic_trb->field[3] & cpu_to_le32(LINK_TOGGLE)) *cycle_state ^= 0x1; cur_seg = cur_seg->next; if (cur_seg == start_seg) @@ -489,8 +487,8 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci, } trb = &state->new_deq_ptr->generic; - if ((le32_to_cpu(trb->field[3]) & TRB_TYPE_BITMASK) == - TRB_TYPE(TRB_LINK) && (le32_to_cpu(trb->field[3]) & LINK_TOGGLE)) + if (TRB_TYPE_LINK_LE32(trb->field[3]) && + (trb->field[3] & cpu_to_le32(LINK_TOGGLE))) state->new_cycle_state ^= 0x1; next_trb(xhci, ep_ring, &state->new_deq_seg, &state->new_deq_ptr); @@ -525,8 +523,7 @@ static void td_to_noop(struct xhci_hcd *xhci, struct xhci_ring *ep_ring, for (cur_seg = cur_td->start_seg, cur_trb = cur_td->first_trb; true; next_trb(xhci, ep_ring, &cur_seg, &cur_trb)) { - if ((le32_to_cpu(cur_trb->generic.field[3]) & TRB_TYPE_BITMASK) - == TRB_TYPE(TRB_LINK)) { + if (TRB_TYPE_LINK_LE32(cur_trb->generic.field[3])) { /* Unchain any chained Link TRBs, but * leave the pointers intact. */ @@ -1000,7 +997,7 @@ static void handle_reset_ep_completion(struct xhci_hcd *xhci, * but we don't care. */ xhci_dbg(xhci, "Ignoring reset ep completion code of %u\n", - (unsigned int) GET_COMP_CODE(le32_to_cpu(event->status))); + GET_COMP_CODE(le32_to_cpu(event->status))); /* HW with the reset endpoint quirk needs to have a configure endpoint * command complete before the endpoint can be used. Queue that here @@ -1458,7 +1455,8 @@ static int xhci_requires_manual_halt_cleanup(struct xhci_hcd *xhci, * endpoint anyway. Check if a babble halted the * endpoint. */ - if ((le32_to_cpu(ep_ctx->ep_info) & EP_STATE_MASK) == EP_STATE_HALTED) + if ((ep_ctx->ep_info & cpu_to_le32(EP_STATE_MASK)) == + cpu_to_le32(EP_STATE_HALTED)) return 1; return 0; @@ -1753,10 +1751,8 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td, for (cur_trb = ep_ring->dequeue, cur_seg = ep_ring->deq_seg; cur_trb != event_trb; next_trb(xhci, ep_ring, &cur_seg, &cur_trb)) { - if ((le32_to_cpu(cur_trb->generic.field[3]) & - TRB_TYPE_BITMASK) != TRB_TYPE(TRB_TR_NOOP) && - (le32_to_cpu(cur_trb->generic.field[3]) & - TRB_TYPE_BITMASK) != TRB_TYPE(TRB_LINK)) + if (!TRB_TYPE_NOOP_LE32(cur_trb->generic.field[3]) && + !TRB_TYPE_LINK_LE32(cur_trb->generic.field[3])) len += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])); } len += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])) - @@ -1885,10 +1881,8 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td, for (cur_trb = ep_ring->dequeue, cur_seg = ep_ring->deq_seg; cur_trb != event_trb; next_trb(xhci, ep_ring, &cur_seg, &cur_trb)) { - if ((le32_to_cpu(cur_trb->generic.field[3]) & - TRB_TYPE_BITMASK) != TRB_TYPE(TRB_TR_NOOP) && - (le32_to_cpu(cur_trb->generic.field[3]) & - TRB_TYPE_BITMASK) != TRB_TYPE(TRB_LINK)) + if (!TRB_TYPE_NOOP_LE32(cur_trb->generic.field[3]) && + !TRB_TYPE_LINK_LE32(cur_trb->generic.field[3])) td->urb->actual_length += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])); } @@ -2047,8 +2041,8 @@ static int handle_tx_event(struct xhci_hcd *xhci, TRB_TO_SLOT_ID(le32_to_cpu(event->flags)), ep_index); xhci_dbg(xhci, "Event TRB with TRB type ID %u\n", - (unsigned int) (le32_to_cpu(event->flags) - & TRB_TYPE_BITMASK)>>10); + (le32_to_cpu(event->flags) & + TRB_TYPE_BITMASK)>>10); xhci_print_trb_offsets(xhci, (union xhci_trb *) event); if (ep->skip) { ep->skip = false; @@ -2119,9 +2113,7 @@ static int handle_tx_event(struct xhci_hcd *xhci, * corresponding TD has been cancelled. Just ignore * the TD. */ - if ((le32_to_cpu(event_trb->generic.field[3]) - & TRB_TYPE_BITMASK) - == TRB_TYPE(TRB_TR_NOOP)) { + if (TRB_TYPE_NOOP_LE32(event_trb->generic.field[3])) { xhci_dbg(xhci, "event_trb is a no-op TRB. Skip it\n"); goto cleanup; @@ -2452,7 +2444,7 @@ static int prepare_ring(struct xhci_hcd *xhci, struct xhci_ring *ep_ring, next->link.control |= cpu_to_le32(TRB_CHAIN); wmb(); - next->link.control ^= cpu_to_le32((u32) TRB_CYCLE); + next->link.control ^= cpu_to_le32(TRB_CYCLE); /* Toggle the cycle bit after the last ring segment. */ if (last_trb_on_last_seg(xhci, ring, ring->enq_seg, next)) { diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index f5fe1ac..763f484 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1342,8 +1342,8 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev, /* If the HC already knows the endpoint is disabled, * or the HCD has noted it is disabled, ignore this request */ - if ((le32_to_cpu(ep_ctx->ep_info) & EP_STATE_MASK) == - EP_STATE_DISABLED || + if (((ep_ctx->ep_info & cpu_to_le32(EP_STATE_MASK)) == + cpu_to_le32(EP_STATE_DISABLED)) || le32_to_cpu(ctrl_ctx->drop_flags) & xhci_get_endpoint_flag(&ep->desc)) { xhci_warn(xhci, "xHCI %s called with disabled ep %p\n", @@ -1758,8 +1758,7 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci, /* Enqueue pointer can be left pointing to the link TRB, * we must handle that */ - if ((le32_to_cpu(command->command_trb->link.control) - & TRB_TYPE_BITMASK) == TRB_TYPE(TRB_LINK)) + if (TRB_TYPE_LINK_LE32(command->command_trb->link.control)) command->command_trb = xhci->cmd_ring->enq_seg->next->trbs; @@ -2559,8 +2558,7 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev) /* Enqueue pointer can be left pointing to the link TRB, * we must handle that */ - if ((le32_to_cpu(reset_device_cmd->command_trb->link.control) - & TRB_TYPE_BITMASK) == TRB_TYPE(TRB_LINK)) + if (TRB_TYPE_LINK_LE32(reset_device_cmd->command_trb->link.control)) reset_device_cmd->command_trb = xhci->cmd_ring->enq_seg->next->trbs; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index d8bbf5c..cae8e23 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1072,6 +1072,13 @@ union xhci_trb { /* Get NEC firmware revision. */ #define TRB_NEC_GET_FW 49 +#define TRB_TYPE_LINK(x) (((x) & TRB_TYPE_BITMASK) == TRB_TYPE(TRB_LINK)) +/* Above, but for __le32 types -- can avoid work by swapping constants: */ +#define TRB_TYPE_LINK_LE32(x) (((x) & cpu_to_le32(TRB_TYPE_BITMASK)) == \ + cpu_to_le32(TRB_TYPE(TRB_LINK))) +#define TRB_TYPE_NOOP_LE32(x) (((x) & cpu_to_le32(TRB_TYPE_BITMASK)) == \ + cpu_to_le32(TRB_TYPE(TRB_TR_NOOP))) + #define NEC_FW_MINOR(p) (((p) >> 0) & 0xff) #define NEC_FW_MAJOR(p) (((p) >> 8) & 0xff) diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c index c302e19..1c3afcc 100644 --- a/drivers/usb/mon/mon_text.c +++ b/drivers/usb/mon/mon_text.c @@ -670,6 +670,9 @@ int mon_text_add(struct mon_bus *mbus, const struct usb_bus *ubus) int busnum = ubus? ubus->busnum: 0; int rc; + if (mon_dir == NULL) + return 0; + if (ubus != NULL) { rc = snprintf(name, NAMESZ, "%dt", busnum); if (rc <= 0 || rc >= NAMESZ) @@ -740,12 +743,12 @@ int __init mon_text_init(void) mondir = debugfs_create_dir("usbmon", usb_debug_root); if (IS_ERR(mondir)) { - printk(KERN_NOTICE TAG ": debugfs is not available\n"); - return -ENODEV; + /* debugfs not available, but we can use usbmon without it */ + return 0; } if (mondir == NULL) { printk(KERN_NOTICE TAG ": unable to create usbmon directory\n"); - return -ENODEV; + return -ENOMEM; } mon_dir = mondir; return 0; diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig index 1309348..6192b45 100644 --- a/drivers/usb/musb/Kconfig +++ b/drivers/usb/musb/Kconfig @@ -8,7 +8,7 @@ comment "Enable Host or Gadget support to see Inventra options" # (M)HDRC = (Multipoint) Highspeed Dual-Role Controller config USB_MUSB_HDRC - depends on (USB || USB_GADGET) + depends on USB && USB_GADGET depends on (ARM || (BF54x && !BF544) || (BF52x && !BF522 && !BF523)) select NOP_USB_XCEIV if (ARCH_DAVINCI || MACH_OMAP3EVM || BLACKFIN) select TWL4030_USB if MACH_OMAP_3430SDP @@ -67,79 +67,6 @@ config USB_MUSB_UX500 endchoice -choice - prompt "Driver Mode" - depends on USB_MUSB_HDRC - help - Dual-Role devices can support both host and peripheral roles, - as well as a the special "OTG Device" role which can switch - between both roles as needed. - -# use USB_MUSB_HDRC_HCD not USB_MUSB_HOST to #ifdef host side support; -# OTG needs both roles, not just USB_MUSB_HOST. -config USB_MUSB_HOST - depends on USB - bool "USB Host" - help - Say Y here if your system supports the USB host role. - If it has a USB "A" (rectangular), "Mini-A" (uncommon), - or "Mini-AB" connector, it supports the host role. - (With a "Mini-AB" connector, you should enable USB OTG.) - -# use USB_GADGET_MUSB_HDRC not USB_MUSB_PERIPHERAL to #ifdef peripheral -# side support ... OTG needs both roles -config USB_MUSB_PERIPHERAL - depends on USB_GADGET - bool "USB Peripheral (gadget stack)" - select USB_GADGET_MUSB_HDRC - help - Say Y here if your system supports the USB peripheral role. - If it has a USB "B" (squarish), "Mini-B", or "Mini-AB" - connector, it supports the peripheral role. - (With a "Mini-AB" connector, you should enable USB OTG.) - -config USB_MUSB_OTG - depends on USB && USB_GADGET && PM && EXPERIMENTAL - bool "Both host and peripheral: USB OTG (On The Go) Device" - select USB_GADGET_MUSB_HDRC - select USB_OTG - help - The most notable feature of USB OTG is support for a - "Dual-Role" device, which can act as either a device - or a host. The initial role choice can be changed - later, when two dual-role devices talk to each other. - - At this writing, the OTG support in this driver is incomplete, - omitting the mandatory HNP or SRP protocols. However, some - of the cable based role switching works. (That is, grounding - the ID pin switches the controller to host mode, while leaving - it floating leaves it in peripheral mode.) - - Select this if your system has a Mini-AB connector, or - to simplify certain kinds of configuration. - - To implement your OTG Targeted Peripherals List (TPL), enable - USB_OTG_WHITELIST and update "drivers/usb/core/otg_whitelist.h" - to match your requirements. - -endchoice - -# enable peripheral support (including with OTG) -config USB_GADGET_MUSB_HDRC - bool - depends on USB_MUSB_HDRC && (USB_MUSB_PERIPHERAL || USB_MUSB_OTG) -# default y -# select USB_GADGET_DUALSPEED -# select USB_GADGET_SELECTED - -# enables host support (including with OTG) -config USB_MUSB_HDRC_HCD - bool - depends on USB_MUSB_HDRC && (USB_MUSB_HOST || USB_MUSB_OTG) - select USB_OTG if USB_GADGET_MUSB_HDRC - default y - - config MUSB_PIO_ONLY bool 'Disable DMA (always use PIO)' depends on USB_MUSB_HDRC diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile index c4d228b..d8fd9d0 100644 --- a/drivers/usb/musb/Makefile +++ b/drivers/usb/musb/Makefile @@ -6,8 +6,8 @@ obj-$(CONFIG_USB_MUSB_HDRC) += musb_hdrc.o musb_hdrc-y := musb_core.o -musb_hdrc-$(CONFIG_USB_GADGET_MUSB_HDRC) += musb_gadget_ep0.o musb_gadget.o -musb_hdrc-$(CONFIG_USB_MUSB_HDRC_HCD) += musb_virthub.o musb_host.o +musb_hdrc-y += musb_gadget_ep0.o musb_gadget.o +musb_hdrc-y += musb_virthub.o musb_host.o musb_hdrc-$(CONFIG_DEBUG_FS) += musb_debugfs.o # Hardware Glue Layer diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c index 23ac28f..08f1d0b6 100644 --- a/drivers/usb/musb/am35x.c +++ b/drivers/usb/musb/am35x.c @@ -124,11 +124,7 @@ static void am35x_musb_disable(struct musb *musb) musb_writel(reg_base, USB_END_OF_INTR_REG, 0); } -#ifdef CONFIG_USB_MUSB_HDRC_HCD #define portstate(stmt) stmt -#else -#define portstate(stmt) -#endif static void am35x_musb_set_vbus(struct musb *musb, int is_on) { diff --git a/drivers/usb/musb/blackfin.h b/drivers/usb/musb/blackfin.h index bd9352a..c84dae5 100644 --- a/drivers/usb/musb/blackfin.h +++ b/drivers/usb/musb/blackfin.h @@ -47,7 +47,7 @@ * So, need to either use silicon v0.2+ or disable DMA mode in MUSB. */ #if ANOMALY_05000380 && defined(CONFIG_BF52x) && \ - defined(CONFIG_USB_MUSB_HDRC) && !defined(CONFIG_MUSB_PIO_ONLY) + !defined(CONFIG_MUSB_PIO_ONLY) # error "Please use PIO mode in MUSB driver on bf52x chip v0.0 and v0.1" #endif diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c index 662ed34..4da7492 100644 --- a/drivers/usb/musb/da8xx.c +++ b/drivers/usb/musb/da8xx.c @@ -172,11 +172,7 @@ static void da8xx_musb_disable(struct musb *musb) musb_writel(reg_base, DA8XX_USB_END_OF_INTR_REG, 0); } -#ifdef CONFIG_USB_MUSB_HDRC_HCD -#define portstate(stmt) stmt -#else -#define portstate(stmt) -#endif +#define portstate(stmt) stmt static void da8xx_musb_set_vbus(struct musb *musb, int is_on) { @@ -397,21 +393,15 @@ static int da8xx_musb_set_mode(struct musb *musb, u8 musb_mode) cfgchip2 &= ~CFGCHIP2_OTGMODE; switch (musb_mode) { -#ifdef CONFIG_USB_MUSB_HDRC_HCD case MUSB_HOST: /* Force VBUS valid, ID = 0 */ cfgchip2 |= CFGCHIP2_FORCE_HOST; break; -#endif -#ifdef CONFIG_USB_GADGET_MUSB_HDRC case MUSB_PERIPHERAL: /* Force VBUS valid, ID = 1 */ cfgchip2 |= CFGCHIP2_FORCE_DEVICE; break; -#endif -#ifdef CONFIG_USB_MUSB_OTG case MUSB_OTG: /* Don't override the VBUS/ID comparators */ cfgchip2 |= CFGCHIP2_NO_OVERRIDE; break; -#endif default: dev_dbg(musb->controller, "Trying to set unsupported mode %u\n", musb_mode); } diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c index 2a2adf6..8bdf25a 100644 --- a/drivers/usb/musb/davinci.c +++ b/drivers/usb/musb/davinci.c @@ -143,12 +143,7 @@ static void davinci_musb_disable(struct musb *musb) } -#ifdef CONFIG_USB_MUSB_HDRC_HCD #define portstate(stmt) stmt -#else -#define portstate(stmt) -#endif - /* * VBUS SWITCHING IS BOARD-SPECIFIC ... at least for the DM6446 EVM, diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index bcbd1ab..20a2873 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -328,8 +328,6 @@ void musb_load_testpacket(struct musb *musb) /*-------------------------------------------------------------------------*/ -#ifdef CONFIG_USB_MUSB_OTG - /* * Handles OTG hnp timeouts, such as b_ase0_brst */ @@ -401,8 +399,6 @@ void musb_hnp_stop(struct musb *musb) musb->port1_status &= ~(USB_PORT_STAT_C_CONNECTION << 16); } -#endif - /* * Interrupt Service Routine to record USB "global" interrupts. * Since these do not happen often and signify things of @@ -432,7 +428,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, dev_dbg(musb->controller, "RESUME (%s)\n", otg_state_string(musb->xceiv->state)); if (devctl & MUSB_DEVCTL_HM) { -#ifdef CONFIG_USB_MUSB_HDRC_HCD void __iomem *mbase = musb->mregs; switch (musb->xceiv->state) { @@ -472,17 +467,13 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, "host", otg_state_string(musb->xceiv->state)); } -#endif } else { switch (musb->xceiv->state) { -#ifdef CONFIG_USB_MUSB_HDRC_HCD case OTG_STATE_A_SUSPEND: /* possibly DISCONNECT is upcoming */ musb->xceiv->state = OTG_STATE_A_HOST; usb_hcd_resume_root_hub(musb_to_hcd(musb)); break; -#endif -#ifdef CONFIG_USB_GADGET_MUSB_HDRC case OTG_STATE_B_WAIT_ACON: case OTG_STATE_B_PERIPHERAL: /* disconnect while suspended? we may @@ -500,7 +491,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, case OTG_STATE_B_IDLE: musb->int_usb &= ~MUSB_INTR_SUSPEND; break; -#endif default: WARNING("bogus %s RESUME (%s)\n", "peripheral", @@ -509,7 +499,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, } } -#ifdef CONFIG_USB_MUSB_HDRC_HCD /* see manual for the order of the tests */ if (int_usb & MUSB_INTR_SESSREQ) { void __iomem *mbase = musb->mregs; @@ -609,14 +598,12 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, handled = IRQ_HANDLED; } -#endif if (int_usb & MUSB_INTR_SUSPEND) { dev_dbg(musb->controller, "SUSPEND (%s) devctl %02x power %02x\n", otg_state_string(musb->xceiv->state), devctl, power); handled = IRQ_HANDLED; switch (musb->xceiv->state) { -#ifdef CONFIG_USB_MUSB_OTG case OTG_STATE_A_PERIPHERAL: /* We also come here if the cable is removed, since * this silicon doesn't report ID-no-longer-grounded. @@ -633,7 +620,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, ? : OTG_TIME_A_WAIT_BCON)); break; -#endif case OTG_STATE_B_IDLE: if (!musb->is_active) break; @@ -642,13 +628,11 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, musb->is_active = is_otg_enabled(musb) && musb->xceiv->gadget->b_hnp_enable; if (musb->is_active) { -#ifdef CONFIG_USB_MUSB_OTG musb->xceiv->state = OTG_STATE_B_WAIT_ACON; dev_dbg(musb->controller, "HNP: Setting timer for b_ase0_brst\n"); mod_timer(&musb->otg_timer, jiffies + msecs_to_jiffies( OTG_TIME_B_ASE0_BRST)); -#endif } break; case OTG_STATE_A_WAIT_BCON: @@ -672,7 +656,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, } } -#ifdef CONFIG_USB_MUSB_HDRC_HCD if (int_usb & MUSB_INTR_CONNECT) { struct usb_hcd *hcd = musb_to_hcd(musb); @@ -682,7 +665,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, musb->ep0_stage = MUSB_EP0_START; -#ifdef CONFIG_USB_MUSB_OTG /* flush endpoints when transitioning from Device Mode */ if (is_peripheral_active(musb)) { /* REVISIT HNP; just force disconnect */ @@ -690,7 +672,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, musb_writew(musb->mregs, MUSB_INTRTXE, musb->epmask); musb_writew(musb->mregs, MUSB_INTRRXE, musb->epmask & 0xfffe); musb_writeb(musb->mregs, MUSB_INTRUSBE, 0xf7); -#endif musb->port1_status &= ~(USB_PORT_STAT_LOW_SPEED |USB_PORT_STAT_HIGH_SPEED |USB_PORT_STAT_ENABLE @@ -739,7 +720,6 @@ b_host: dev_dbg(musb->controller, "CONNECT (%s) devctl %02x\n", otg_state_string(musb->xceiv->state), devctl); } -#endif /* CONFIG_USB_MUSB_HDRC_HCD */ if ((int_usb & MUSB_INTR_DISCONNECT) && !musb->ignore_disconnect) { dev_dbg(musb->controller, "DISCONNECT (%s) as %s, devctl %02x\n", @@ -748,7 +728,6 @@ b_host: handled = IRQ_HANDLED; switch (musb->xceiv->state) { -#ifdef CONFIG_USB_MUSB_HDRC_HCD case OTG_STATE_A_HOST: case OTG_STATE_A_SUSPEND: usb_hcd_resume_root_hub(musb_to_hcd(musb)); @@ -757,8 +736,6 @@ b_host: musb_platform_try_idle(musb, jiffies + msecs_to_jiffies(musb->a_wait_bcon)); break; -#endif /* HOST */ -#ifdef CONFIG_USB_MUSB_OTG case OTG_STATE_B_HOST: /* REVISIT this behaves for "real disconnect" * cases; make sure the other transitions from @@ -777,13 +754,10 @@ b_host: /* FALLTHROUGH */ case OTG_STATE_B_WAIT_ACON: /* FALLTHROUGH */ -#endif /* OTG */ -#ifdef CONFIG_USB_GADGET_MUSB_HDRC case OTG_STATE_B_PERIPHERAL: case OTG_STATE_B_IDLE: musb_g_disconnect(musb); break; -#endif /* GADGET */ default: WARNING("unhandled DISCONNECT transition (%s)\n", otg_state_string(musb->xceiv->state)); @@ -814,7 +788,6 @@ b_host: dev_dbg(musb->controller, "BUS RESET as %s\n", otg_state_string(musb->xceiv->state)); switch (musb->xceiv->state) { -#ifdef CONFIG_USB_OTG case OTG_STATE_A_SUSPEND: /* We need to ignore disconnect on suspend * otherwise tusb 2.0 won't reconnect after a @@ -842,7 +815,6 @@ b_host: musb->xceiv->state = OTG_STATE_B_PERIPHERAL; musb_g_reset(musb); break; -#endif case OTG_STATE_B_IDLE: musb->xceiv->state = OTG_STATE_B_PERIPHERAL; /* FALLTHROUGH */ @@ -927,7 +899,6 @@ void musb_start(struct musb *musb) /* put into basic highspeed mode and start session */ musb_writeb(regs, MUSB_POWER, MUSB_POWER_ISOUPDATE - | MUSB_POWER_SOFTCONN | MUSB_POWER_HSENAB /* ENSUSPEND wedges tusb */ /* | MUSB_POWER_ENSUSPEND */ @@ -1038,10 +1009,15 @@ static void musb_shutdown(struct platform_device *pdev) * We don't currently use dynamic fifo setup capability to do anything * more than selecting one of a bunch of predefined configurations. */ -#if defined(CONFIG_USB_MUSB_TUSB6010) || defined(CONFIG_USB_MUSB_OMAP2PLUS) \ - || defined(CONFIG_USB_MUSB_AM35X) +#if defined(CONFIG_USB_MUSB_TUSB6010) \ + || defined(CONFIG_USB_MUSB_TUSB6010_MODULE) \ + || defined(CONFIG_USB_MUSB_OMAP2PLUS) \ + || defined(CONFIG_USB_MUSB_OMAP2PLUS_MODULE) \ + || defined(CONFIG_USB_MUSB_AM35X) \ + || defined(CONFIG_USB_MUSB_AM35X_MODULE) static ushort __initdata fifo_mode = 4; -#elif defined(CONFIG_USB_MUSB_UX500) +#elif defined(CONFIG_USB_MUSB_UX500) \ + || defined(CONFIG_USB_MUSB_UX500_MODULE) static ushort __initdata fifo_mode = 5; #else static ushort __initdata fifo_mode = 2; @@ -1191,14 +1167,12 @@ fifo_setup(struct musb *musb, struct musb_hw_ep *hw_ep, /* configure the FIFO */ musb_writeb(mbase, MUSB_INDEX, hw_ep->epnum); -#ifdef CONFIG_USB_MUSB_HDRC_HCD /* EP0 reserved endpoint for control, bidirectional; * EP1 reserved for bulk, two unidirection halves. */ if (hw_ep->epnum == 1) musb->bulk_ep = hw_ep; /* REVISIT error check: be sure ep0 can both rx and tx ... */ -#endif switch (cfg->style) { case FIFO_TX: musb_write_txfifosz(mbase, c_size); @@ -1317,12 +1291,10 @@ done: n + 1, musb->config->num_eps * 2 - 1, offset, (1 << (musb->config->ram_bits + 2))); -#ifdef CONFIG_USB_MUSB_HDRC_HCD if (!musb->bulk_ep) { pr_debug("%s: missing bulk\n", musb_driver_name); return -EINVAL; } -#endif return 0; } @@ -1353,7 +1325,6 @@ static int __init ep_config_from_hw(struct musb *musb) /* FIXME set up hw_ep->{rx,tx}_double_buffered */ -#ifdef CONFIG_USB_MUSB_HDRC_HCD /* pick an RX/TX endpoint for bulk */ if (hw_ep->max_packet_sz_tx < 512 || hw_ep->max_packet_sz_rx < 512) @@ -1365,15 +1336,12 @@ static int __init ep_config_from_hw(struct musb *musb) if (musb->bulk_ep) continue; musb->bulk_ep = hw_ep; -#endif } -#ifdef CONFIG_USB_MUSB_HDRC_HCD if (!musb->bulk_ep) { pr_debug("%s: missing bulk\n", musb_driver_name); return -EINVAL; } -#endif return 0; } @@ -1429,13 +1397,11 @@ static int __init musb_core_init(u16 musb_type, struct musb *musb) } else { musb->is_multipoint = 0; type = ""; -#ifdef CONFIG_USB_MUSB_HDRC_HCD #ifndef CONFIG_USB_OTG_BLACKLIST_HUB printk(KERN_ERR "%s: kernel must blacklist external hubs\n", musb_driver_name); #endif -#endif } /* log release info */ @@ -1479,11 +1445,9 @@ static int __init musb_core_init(u16 musb_type, struct musb *musb) #endif hw_ep->regs = MUSB_EP_OFFSET(i, 0) + mbase; -#ifdef CONFIG_USB_MUSB_HDRC_HCD hw_ep->target_regs = musb_read_target_reg_base(i, mbase); hw_ep->rx_reinit = 1; hw_ep->tx_reinit = 1; -#endif if (hw_ep->max_packet_sz_tx) { dev_dbg(musb->controller, @@ -1561,14 +1525,6 @@ irqreturn_t musb_interrupt(struct musb *musb) (devctl & MUSB_DEVCTL_HM) ? "host" : "peripheral", musb->int_usb, musb->int_tx, musb->int_rx); -#ifdef CONFIG_USB_GADGET_MUSB_HDRC - if (is_otg_enabled(musb) || is_peripheral_enabled(musb)) - if (!musb->gadget_driver) { - dev_dbg(musb->controller, "No gadget driver loaded\n"); - return IRQ_HANDLED; - } -#endif - /* the core can interrupt us for multiple reasons; docs have * a generic interrupt flowchart to follow */ @@ -1767,8 +1723,6 @@ musb_vbus_show(struct device *dev, struct device_attribute *attr, char *buf) } static DEVICE_ATTR(vbus, 0644, musb_vbus_show, musb_vbus_store); -#ifdef CONFIG_USB_GADGET_MUSB_HDRC - /* Gadget drivers can't know that a host is connected so they might want * to start SRP, but users can. This allows userspace to trigger SRP. */ @@ -1792,14 +1746,10 @@ musb_srp_store(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR(srp, 0644, NULL, musb_srp_store); -#endif /* CONFIG_USB_GADGET_MUSB_HDRC */ - static struct attribute *musb_attributes[] = { &dev_attr_mode.attr, &dev_attr_vbus.attr, -#ifdef CONFIG_USB_GADGET_MUSB_HDRC &dev_attr_srp.attr, -#endif NULL }; @@ -1832,7 +1782,6 @@ allocate_instance(struct device *dev, struct musb *musb; struct musb_hw_ep *ep; int epnum; -#ifdef CONFIG_USB_MUSB_HDRC_HCD struct usb_hcd *hcd; hcd = usb_create_hcd(&musb_hc_driver, dev, dev_name(dev)); @@ -1850,12 +1799,6 @@ allocate_instance(struct device *dev, musb->vbuserr_retry = VBUSERR_RETRY_COUNT; musb->a_wait_bcon = OTG_TIME_A_WAIT_BCON; -#else - musb = kzalloc(sizeof *musb, GFP_KERNEL); - if (!musb) - return NULL; - -#endif dev_set_drvdata(dev, musb); musb->mregs = mbase; musb->ctrl_base = mbase; @@ -1885,9 +1828,7 @@ static void musb_free(struct musb *musb) sysfs_remove_group(&musb->controller->kobj, &musb_attr_group); #endif -#ifdef CONFIG_USB_GADGET_MUSB_HDRC musb_gadget_cleanup(musb); -#endif if (musb->nIrq >= 0) { if (musb->irq_wake) @@ -1901,11 +1842,7 @@ static void musb_free(struct musb *musb) dma_controller_destroy(c); } -#ifdef CONFIG_USB_MUSB_HDRC_HCD - usb_put_hcd(musb_to_hcd(musb)); -#else kfree(musb); -#endif } /* @@ -2000,9 +1937,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) if (status < 0) goto fail3; -#ifdef CONFIG_USB_MUSB_OTG setup_timer(&musb->otg_timer, musb_otg_timer_func, (unsigned long) musb); -#endif /* Init IRQ workqueue before request_irq */ INIT_WORK(&musb->irq_work, musb_irq_work); @@ -2214,7 +2149,16 @@ static void musb_save_context(struct musb *musb) musb->context.devctl = musb_readb(musb_base, MUSB_DEVCTL); for (i = 0; i < musb->config->num_eps; ++i) { - epio = musb->endpoints[i].regs; + struct musb_hw_ep *hw_ep; + + hw_ep = &musb->endpoints[i]; + if (!hw_ep) + continue; + + epio = hw_ep->regs; + if (!epio) + continue; + musb->context.index_regs[i].txmaxp = musb_readw(epio, MUSB_TXMAXP); musb->context.index_regs[i].txcsr = @@ -2280,7 +2224,16 @@ static void musb_restore_context(struct musb *musb) musb_writeb(musb_base, MUSB_DEVCTL, musb->context.devctl); for (i = 0; i < musb->config->num_eps; ++i) { - epio = musb->endpoints[i].regs; + struct musb_hw_ep *hw_ep; + + hw_ep = &musb->endpoints[i]; + if (!hw_ep) + continue; + + epio = hw_ep->regs; + if (!epio) + continue; + musb_writew(epio, MUSB_TXMAXP, musb->context.index_regs[i].txmaxp); musb_writew(epio, MUSB_TXCSR, @@ -2329,13 +2282,13 @@ static void musb_restore_context(struct musb *musb) musb->context.index_regs[i].rxhubport); } } + musb_writeb(musb_base, MUSB_INDEX, musb->context.index); } static int musb_suspend(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); + struct musb *musb = dev_to_musb(dev); unsigned long flags; - struct musb *musb = dev_to_musb(&pdev->dev); spin_lock_irqsave(&musb->lock, flags); @@ -2357,8 +2310,7 @@ static int musb_suspend(struct device *dev) static int musb_resume_noirq(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - struct musb *musb = dev_to_musb(&pdev->dev); + struct musb *musb = dev_to_musb(dev); musb_restore_context(musb); @@ -2426,34 +2378,13 @@ static struct platform_driver musb_driver = { static int __init musb_init(void) { -#ifdef CONFIG_USB_MUSB_HDRC_HCD if (usb_disabled()) return 0; -#endif pr_info("%s: version " MUSB_VERSION ", " -#ifdef CONFIG_MUSB_PIO_ONLY - "pio" -#elif defined(CONFIG_USB_TI_CPPI_DMA) - "cppi-dma" -#elif defined(CONFIG_USB_INVENTRA_DMA) - "musb-dma" -#elif defined(CONFIG_USB_TUSB_OMAP_DMA) - "tusb-omap-dma" -#elif defined(CONFIG_USB_UX500_DMA) - "ux500-dma" -#else "?dma?" -#endif ", " -#ifdef CONFIG_USB_MUSB_OTG - "otg (peripheral+host)" -#elif defined(CONFIG_USB_GADGET_MUSB_HDRC) - "peripheral" -#elif defined(CONFIG_USB_MUSB_HDRC_HCD) - "host" -#endif - , + "otg (peripheral+host)", musb_driver_name); return platform_driver_probe(&musb_driver, musb_probe); } diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 0e053b5..668eeef 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -72,10 +72,6 @@ struct musb_ep; #include <linux/usb/hcd.h> #include "musb_host.h" - - -#ifdef CONFIG_USB_MUSB_OTG - #define is_peripheral_enabled(musb) ((musb)->board_mode != MUSB_HOST) #define is_host_enabled(musb) ((musb)->board_mode != MUSB_PERIPHERAL) #define is_otg_enabled(musb) ((musb)->board_mode == MUSB_OTG) @@ -86,24 +82,6 @@ struct musb_ep; #define is_peripheral_active(m) (!(m)->is_host) #define is_host_active(m) ((m)->is_host) -#else -#define is_peripheral_enabled(musb) is_peripheral_capable() -#define is_host_enabled(musb) is_host_capable() -#define is_otg_enabled(musb) 0 - -#define is_peripheral_active(musb) is_peripheral_capable() -#define is_host_active(musb) is_host_capable() -#endif - -#if defined(CONFIG_USB_MUSB_OTG) || defined(CONFIG_USB_MUSB_PERIPHERAL) -/* for some reason, the "select USB_GADGET_MUSB_HDRC" doesn't always - * override that choice selection (often USB_GADGET_DUMMY_HCD). - */ -#ifndef CONFIG_USB_GADGET_MUSB_HDRC -#error bogus Kconfig output ... select CONFIG_USB_GADGET_MUSB_HDRC -#endif -#endif /* need MUSB gadget selection */ - #ifndef CONFIG_HAVE_CLK /* Dummy stub for clk framework */ #define clk_get(dev, id) NULL @@ -119,8 +97,6 @@ struct musb_ep; /****************************** PERIPHERAL ROLE *****************************/ -#ifdef CONFIG_USB_GADGET_MUSB_HDRC - #define is_peripheral_capable() (1) extern irqreturn_t musb_g_ep0_irq(struct musb *); @@ -132,40 +108,14 @@ extern void musb_g_resume(struct musb *); extern void musb_g_wakeup(struct musb *); extern void musb_g_disconnect(struct musb *); -#else - -#define is_peripheral_capable() (0) - -static inline irqreturn_t musb_g_ep0_irq(struct musb *m) { return IRQ_NONE; } -static inline void musb_g_reset(struct musb *m) {} -static inline void musb_g_suspend(struct musb *m) {} -static inline void musb_g_resume(struct musb *m) {} -static inline void musb_g_wakeup(struct musb *m) {} -static inline void musb_g_disconnect(struct musb *m) {} - -#endif - /****************************** HOST ROLE ***********************************/ -#ifdef CONFIG_USB_MUSB_HDRC_HCD - #define is_host_capable() (1) extern irqreturn_t musb_h_ep0_irq(struct musb *); extern void musb_host_tx(struct musb *, u8); extern void musb_host_rx(struct musb *, u8); -#else - -#define is_host_capable() (0) - -static inline irqreturn_t musb_h_ep0_irq(struct musb *m) { return IRQ_NONE; } -static inline void musb_host_tx(struct musb *m, u8 e) {} -static inline void musb_host_rx(struct musb *m, u8 e) {} - -#endif - - /****************************** CONSTANTS ********************************/ #ifndef MUSB_C_NUM_EPS @@ -261,7 +211,7 @@ enum musb_g_ep0_state { * @try_ilde: tries to idle the IP * @vbus_status: returns vbus status if possible * @set_vbus: forces vbus status - * @channel_program: pre check for standard dma channel_program func + * @adjust_channel_params: pre check for standard dma channel_program func */ struct musb_platform_ops { int (*init)(struct musb *musb); @@ -315,7 +265,6 @@ struct musb_hw_ep { void __iomem *fifo_sync_va; #endif -#ifdef CONFIG_USB_MUSB_HDRC_HCD void __iomem *target_regs; /* currently scheduled peripheral endpoint */ @@ -324,31 +273,20 @@ struct musb_hw_ep { u8 rx_reinit; u8 tx_reinit; -#endif -#ifdef CONFIG_USB_GADGET_MUSB_HDRC /* peripheral side */ struct musb_ep ep_in; /* TX */ struct musb_ep ep_out; /* RX */ -#endif }; static inline struct musb_request *next_in_request(struct musb_hw_ep *hw_ep) { -#ifdef CONFIG_USB_GADGET_MUSB_HDRC return next_request(&hw_ep->ep_in); -#else - return NULL; -#endif } static inline struct musb_request *next_out_request(struct musb_hw_ep *hw_ep) { -#ifdef CONFIG_USB_GADGET_MUSB_HDRC return next_request(&hw_ep->ep_out); -#else - return NULL; -#endif } struct musb_csr_regs { @@ -393,7 +331,6 @@ struct musb { u32 port1_status; -#ifdef CONFIG_USB_MUSB_HDRC_HCD unsigned long rh_timer; enum musb_h_ep0_state ep0_stage; @@ -411,7 +348,6 @@ struct musb { struct list_head out_bulk; /* of musb_qh */ struct timer_list otg_timer; -#endif struct notifier_block nb; struct dma_controller *dma_controller; @@ -472,7 +408,6 @@ struct musb { #define can_bulk_combine(musb,type) \ (((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_combine) -#ifdef CONFIG_USB_GADGET_MUSB_HDRC /* is_suspended means USB B_PERIPHERAL suspend */ unsigned is_suspended:1; @@ -496,7 +431,6 @@ struct musb { enum musb_g_ep0_state ep0_state; struct usb_gadget g; /* the gadget */ struct usb_gadget_driver *gadget_driver; /* its driver */ -#endif /* * FIXME: Remove this flag. @@ -518,12 +452,10 @@ struct musb { #endif }; -#ifdef CONFIG_USB_GADGET_MUSB_HDRC static inline struct musb *gadget_to_musb(struct usb_gadget *g) { return container_of(g, struct musb, g); } -#endif #ifdef CONFIG_BLACKFIN static inline int musb_read_fifosize(struct musb *musb, diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 6aeb363..b67a062 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -1663,8 +1663,8 @@ static void musb_pullup(struct musb *musb, int is_on) /* FIXME if on, HdrcStart; if off, HdrcStop */ - dev_dbg(musb->controller, "gadget %s D+ pullup %s\n", - musb->gadget_driver->function, is_on ? "on" : "off"); + dev_dbg(musb->controller, "gadget D+ pullup %s\n", + is_on ? "on" : "off"); musb_writeb(musb->mregs, MUSB_POWER, power); } @@ -1710,6 +1710,11 @@ static int musb_gadget_pullup(struct usb_gadget *gadget, int is_on) return 0; } +static int musb_gadget_start(struct usb_gadget *g, + struct usb_gadget_driver *driver); +static int musb_gadget_stop(struct usb_gadget *g, + struct usb_gadget_driver *driver); + static const struct usb_gadget_ops musb_gadget_operations = { .get_frame = musb_gadget_get_frame, .wakeup = musb_gadget_wakeup, @@ -1717,6 +1722,8 @@ static const struct usb_gadget_ops musb_gadget_operations = { /* .vbus_session = musb_gadget_vbus_session, */ .vbus_draw = musb_gadget_vbus_draw, .pullup = musb_gadget_pullup, + .udc_start = musb_gadget_start, + .udc_stop = musb_gadget_stop, }; /* ----------------------------------------------------------------------- */ @@ -1727,7 +1734,6 @@ static const struct usb_gadget_ops musb_gadget_operations = { * about there being only one external upstream port. It assumes * all peripheral ports are external... */ -static struct musb *the_gadget; static void musb_gadget_release(struct device *dev) { @@ -1814,9 +1820,6 @@ int __init musb_gadget_setup(struct musb *musb) * musb peripherals at the same time, only the bus lock * is probably held. */ - if (the_gadget) - return -EBUSY; - the_gadget = musb; musb->g.ops = &musb_gadget_operations; musb->g.is_dualspeed = 1; @@ -1840,18 +1843,22 @@ int __init musb_gadget_setup(struct musb *musb) status = device_register(&musb->g.dev); if (status != 0) { put_device(&musb->g.dev); - the_gadget = NULL; + return status; } + status = usb_add_gadget_udc(musb->controller, &musb->g); + if (status) + goto err; + + return 0; +err: + device_unregister(&musb->g.dev); return status; } void musb_gadget_cleanup(struct musb *musb) { - if (musb != the_gadget) - return; - + usb_del_gadget_udc(&musb->g); device_unregister(&musb->g.dev); - the_gadget = NULL; } /* @@ -1863,59 +1870,30 @@ void musb_gadget_cleanup(struct musb *musb) * -ENOMEM no memory to perform the operation * * @param driver the gadget driver - * @param bind the driver's bind function * @return <0 if error, 0 if everything is fine */ -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, - int (*bind)(struct usb_gadget *)) +static int musb_gadget_start(struct usb_gadget *g, + struct usb_gadget_driver *driver) { - struct musb *musb = the_gadget; + struct musb *musb = gadget_to_musb(g); unsigned long flags; int retval = -EINVAL; - if (!driver - || driver->speed != USB_SPEED_HIGH - || !bind || !driver->setup) - goto err0; - - /* driver must be initialized to support peripheral mode */ - if (!musb) { - dev_dbg(musb->controller, "no dev??\n"); - retval = -ENODEV; + if (driver->speed != USB_SPEED_HIGH) goto err0; - } pm_runtime_get_sync(musb->controller); dev_dbg(musb->controller, "registering driver %s\n", driver->function); - if (musb->gadget_driver) { - dev_dbg(musb->controller, "%s is already bound to %s\n", - musb_driver_name, - musb->gadget_driver->driver.name); - retval = -EBUSY; - goto err0; - } - - spin_lock_irqsave(&musb->lock, flags); + musb->softconnect = 0; musb->gadget_driver = driver; - musb->g.dev.driver = &driver->driver; - driver->driver.bus = NULL; - musb->softconnect = 1; - spin_unlock_irqrestore(&musb->lock, flags); - - retval = bind(&musb->g); - if (retval) { - dev_dbg(musb->controller, "bind to driver %s failed --> %d\n", - driver->driver.name, retval); - goto err1; - } spin_lock_irqsave(&musb->lock, flags); + musb->is_active = 1; otg_set_peripheral(musb->xceiv, &musb->g); musb->xceiv->state = OTG_STATE_B_IDLE; - musb->is_active = 1; /* * FIXME this ignores the softconnect flag. Drivers are @@ -1927,8 +1905,6 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, if (!is_otg_enabled(musb)) musb_start(musb); - otg_set_peripheral(musb->xceiv, &musb->g); - spin_unlock_irqrestore(&musb->lock, flags); if (is_otg_enabled(musb)) { @@ -1960,15 +1936,9 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, err2: if (!is_otg_enabled(musb)) musb_stop(musb); - -err1: - musb->gadget_driver = NULL; - musb->g.dev.driver = NULL; - err0: return retval; } -EXPORT_SYMBOL(usb_gadget_probe_driver); static void stop_activity(struct musb *musb, struct usb_gadget_driver *driver) { @@ -2018,17 +1988,12 @@ static void stop_activity(struct musb *musb, struct usb_gadget_driver *driver) * * @param driver the gadget driver to unregister */ -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int musb_gadget_stop(struct usb_gadget *g, + struct usb_gadget_driver *driver) { - struct musb *musb = the_gadget; + struct musb *musb = gadget_to_musb(g); unsigned long flags; - if (!driver || !driver->unbind || !musb) - return -EINVAL; - - if (!musb->gadget_driver) - return -EINVAL; - if (musb->xceiv->last_event == USB_EVENT_NONE) pm_runtime_get_sync(musb->controller); @@ -2039,9 +2004,7 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) spin_lock_irqsave(&musb->lock, flags); -#ifdef CONFIG_USB_MUSB_OTG musb_hnp_stop(musb); -#endif (void) musb_gadget_vbus_draw(&musb->g, 0); @@ -2051,13 +2014,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) dev_dbg(musb->controller, "unregistering driver %s\n", driver->function); - spin_unlock_irqrestore(&musb->lock, flags); - driver->unbind(&musb->g); - spin_lock_irqsave(&musb->lock, flags); - - musb->gadget_driver = NULL; - musb->g.dev.driver = NULL; - musb->is_active = 0; musb_platform_try_idle(musb, 0); spin_unlock_irqrestore(&musb->lock, flags); @@ -2077,8 +2033,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); - /* ----------------------------------------------------------------------- */ @@ -2164,7 +2118,6 @@ void musb_g_disconnect(struct musb *musb) switch (musb->xceiv->state) { default: -#ifdef CONFIG_USB_MUSB_OTG dev_dbg(musb->controller, "Unhandled disconnect %s, setting a_idle\n", otg_state_string(musb->xceiv->state)); musb->xceiv->state = OTG_STATE_A_IDLE; @@ -2176,7 +2129,6 @@ void musb_g_disconnect(struct musb *musb) break; case OTG_STATE_B_WAIT_ACON: case OTG_STATE_B_HOST: -#endif case OTG_STATE_B_PERIPHERAL: case OTG_STATE_B_IDLE: musb->xceiv->state = OTG_STATE_B_IDLE; diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c index b2faff2..9378b35 100644 --- a/drivers/usb/musb/musb_gadget_ep0.c +++ b/drivers/usb/musb/musb_gadget_ep0.c @@ -88,7 +88,6 @@ static int service_tx_status_request( case USB_RECIP_DEVICE: result[0] = musb->is_self_powered << USB_DEVICE_SELF_POWERED; result[0] |= musb->may_wakeup << USB_DEVICE_REMOTE_WAKEUP; -#ifdef CONFIG_USB_MUSB_OTG if (musb->g.is_otg) { result[0] |= musb->g.b_hnp_enable << USB_DEVICE_B_HNP_ENABLE; @@ -97,7 +96,6 @@ static int service_tx_status_request( result[0] |= musb->g.a_hnp_support << USB_DEVICE_A_HNP_SUPPORT; } -#endif break; case USB_RECIP_INTERFACE: @@ -392,7 +390,6 @@ __acquires(musb->lock) if (handled > 0) musb->test_mode = true; break; -#ifdef CONFIG_USB_MUSB_OTG case USB_DEVICE_B_HNP_ENABLE: if (!musb->g.is_otg) goto stall; @@ -409,7 +406,6 @@ __acquires(musb->lock) goto stall; musb->g.a_alt_hnp_support = 1; break; -#endif case USB_DEVICE_DEBUG_MODE: handled = 0; break; diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h index 14b0077..622d09f 100644 --- a/drivers/usb/musb/musb_host.h +++ b/drivers/usb/musb/musb_host.h @@ -95,7 +95,6 @@ extern const struct hc_driver musb_hc_driver; static inline struct urb *next_urb(struct musb_qh *qh) { -#ifdef CONFIG_USB_MUSB_HDRC_HCD struct list_head *queue; if (!qh) @@ -104,9 +103,6 @@ static inline struct urb *next_urb(struct musb_qh *qh) if (list_empty(queue)) return NULL; return list_entry(queue->next, struct urb, urb_list); -#else - return NULL; -#endif } #endif /* _MUSB_HOST_H */ diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c index 2d80a57..e9f80adc 100644 --- a/drivers/usb/musb/musb_virthub.c +++ b/drivers/usb/musb/musb_virthub.c @@ -88,14 +88,12 @@ static void musb_port_suspend(struct musb *musb, bool do_suspend) OTG_TIME_A_AIDL_BDIS)); musb_platform_try_idle(musb, 0); break; -#ifdef CONFIG_USB_MUSB_OTG case OTG_STATE_B_HOST: musb->xceiv->state = OTG_STATE_B_WAIT_ACON; musb->is_active = is_otg_enabled(musb) && musb->xceiv->host->b_hnp_enable; musb_platform_try_idle(musb, 0); break; -#endif default: dev_dbg(musb->controller, "bogus rh suspend? %s\n", otg_state_string(musb->xceiv->state)); @@ -118,13 +116,11 @@ static void musb_port_reset(struct musb *musb, bool do_reset) u8 power; void __iomem *mbase = musb->mregs; -#ifdef CONFIG_USB_MUSB_OTG if (musb->xceiv->state == OTG_STATE_B_IDLE) { dev_dbg(musb->controller, "HNP: Returning from HNP; no hub reset from b_idle\n"); musb->port1_status &= ~USB_PORT_STAT_RESET; return; } -#endif if (!is_host_active(musb)) return; @@ -191,14 +187,12 @@ void musb_root_disconnect(struct musb *musb) switch (musb->xceiv->state) { case OTG_STATE_A_SUSPEND: -#ifdef CONFIG_USB_MUSB_OTG if (is_otg_enabled(musb) && musb->xceiv->host->b_hnp_enable) { musb->xceiv->state = OTG_STATE_A_PERIPHERAL; musb->g.is_a_peripheral = 1; break; } -#endif /* FALLTHROUGH */ case OTG_STATE_A_HOST: musb->xceiv->state = OTG_STATE_A_WAIT_BCON; diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index c5d4c44..ba85f27 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -51,9 +51,7 @@ static void musb_do_idle(unsigned long _musb) { struct musb *musb = (void *)_musb; unsigned long flags; -#ifdef CONFIG_USB_MUSB_HDRC_HCD u8 power; -#endif u8 devctl; spin_lock_irqsave(&musb->lock, flags); @@ -70,7 +68,6 @@ static void musb_do_idle(unsigned long _musb) MUSB_HST_MODE(musb); } break; -#ifdef CONFIG_USB_MUSB_HDRC_HCD case OTG_STATE_A_SUSPEND: /* finish RESUME signaling? */ if (musb->port1_status & MUSB_PORT_STAT_RESUME) { @@ -87,15 +84,12 @@ static void musb_do_idle(unsigned long _musb) musb->xceiv->state = OTG_STATE_A_HOST; } break; -#endif -#ifdef CONFIG_USB_MUSB_HDRC_HCD case OTG_STATE_A_HOST: devctl = musb_readb(musb->mregs, MUSB_DEVCTL); if (devctl & MUSB_DEVCTL_BDEVICE) musb->xceiv->state = OTG_STATE_B_IDLE; else musb->xceiv->state = OTG_STATE_A_WAIT_BCON; -#endif default: break; } @@ -243,13 +237,11 @@ static int musb_otg_notifications(struct notifier_block *nb, dev_dbg(musb->controller, "ID GND\n"); if (is_otg_enabled(musb)) { -#ifdef CONFIG_USB_GADGET_MUSB_HDRC if (musb->gadget_driver) { pm_runtime_get_sync(musb->controller); otg_init(musb->xceiv); omap2430_musb_set_vbus(musb, 1); } -#endif } else { pm_runtime_get_sync(musb->controller); otg_init(musb->xceiv); @@ -260,21 +252,16 @@ static int musb_otg_notifications(struct notifier_block *nb, case USB_EVENT_VBUS: dev_dbg(musb->controller, "VBUS Connect\n"); -#ifdef CONFIG_USB_GADGET_MUSB_HDRC if (musb->gadget_driver) pm_runtime_get_sync(musb->controller); -#endif otg_init(musb->xceiv); break; case USB_EVENT_NONE: dev_dbg(musb->controller, "VBUS Disconnect\n"); -#ifdef CONFIG_USB_GADGET_MUSB_HDRC if (is_otg_enabled(musb) || is_peripheral_enabled(musb)) - if (musb->gadget_driver) -#endif - { + if (musb->gadget_driver) { pm_runtime_mark_last_busy(musb->controller); pm_runtime_put_autosuspend(musb->controller); } diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index b410357..9eec41f 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -269,8 +269,6 @@ void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *buf) static struct musb *the_musb; -#ifdef CONFIG_USB_GADGET_MUSB_HDRC - /* This is used by gadget drivers, and OTG transceiver logic, allowing * at most mA current to be drawn from VBUS during a Default-B session * (that is, while VBUS exceeds 4.4V). In Default-A (including pure host @@ -310,10 +308,6 @@ static int tusb_draw_power(struct otg_transceiver *x, unsigned mA) return 0; } -#else -#define tusb_draw_power NULL -#endif - /* workaround for issue 13: change clock during chip idle * (to be fixed in rev3 silicon) ... symptoms include disconnect * or looping suspend/resume cycles @@ -440,19 +434,15 @@ static void musb_do_idle(unsigned long _musb) if (is_host_active(musb) && (musb->port1_status >> 16)) goto done; -#ifdef CONFIG_USB_GADGET_MUSB_HDRC - if (is_peripheral_enabled(musb) && !musb->gadget_driver) + if (is_peripheral_enabled(musb) && !musb->gadget_driver) { wakeups = 0; - else { + } else { wakeups = TUSB_PRCM_WHOSTDISCON - | TUSB_PRCM_WBUS + | TUSB_PRCM_WBUS | TUSB_PRCM_WVBUS; if (is_otg_enabled(musb)) wakeups |= TUSB_PRCM_WID; } -#else - wakeups = TUSB_PRCM_WHOSTDISCON | TUSB_PRCM_WBUS; -#endif tusb_allow_idle(musb, wakeups); } done: @@ -610,30 +600,22 @@ static int tusb_musb_set_mode(struct musb *musb, u8 musb_mode) switch (musb_mode) { -#ifdef CONFIG_USB_MUSB_HDRC_HCD case MUSB_HOST: /* Disable PHY ID detect, ground ID */ phy_otg_ctrl &= ~TUSB_PHY_OTG_CTRL_OTG_ID_PULLUP; phy_otg_ena |= TUSB_PHY_OTG_CTRL_OTG_ID_PULLUP; dev_conf |= TUSB_DEV_CONF_ID_SEL; dev_conf &= ~TUSB_DEV_CONF_SOFT_ID; break; -#endif - -#ifdef CONFIG_USB_GADGET_MUSB_HDRC case MUSB_PERIPHERAL: /* Disable PHY ID detect, keep ID pull-up on */ phy_otg_ctrl |= TUSB_PHY_OTG_CTRL_OTG_ID_PULLUP; phy_otg_ena |= TUSB_PHY_OTG_CTRL_OTG_ID_PULLUP; dev_conf |= (TUSB_DEV_CONF_ID_SEL | TUSB_DEV_CONF_SOFT_ID); break; -#endif - -#ifdef CONFIG_USB_MUSB_OTG case MUSB_OTG: /* Use PHY ID detection */ phy_otg_ctrl |= TUSB_PHY_OTG_CTRL_OTG_ID_PULLUP; phy_otg_ena |= TUSB_PHY_OTG_CTRL_OTG_ID_PULLUP; dev_conf &= ~(TUSB_DEV_CONF_ID_SEL | TUSB_DEV_CONF_SOFT_ID); break; -#endif default: dev_dbg(musb->controller, "Trying to set mode %i\n", musb_mode); @@ -684,7 +666,6 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase) /* B-dev state machine: no vbus ~= disconnect */ if ((is_otg_enabled(musb) && !musb->xceiv->default_a) || !is_host_enabled(musb)) { -#ifdef CONFIG_USB_MUSB_HDRC_HCD /* ? musb_root_disconnect(musb); */ musb->port1_status &= ~(USB_PORT_STAT_CONNECTION @@ -693,7 +674,6 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase) | USB_PORT_STAT_HIGH_SPEED | USB_PORT_STAT_TEST ); -#endif if (otg_stat & TUSB_DEV_OTG_STAT_SESS_END) { dev_dbg(musb->controller, "Forcing disconnect (no interrupt)\n"); diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c index cfb5aa7..b4d2c09 100644 --- a/drivers/usb/otg/twl6030-usb.c +++ b/drivers/usb/otg/twl6030-usb.c @@ -95,11 +95,15 @@ struct twl6030_usb { struct regulator *usb3v3; + /* used to set vbus, in atomic path */ + struct work_struct set_vbus_work; + int irq1; int irq2; u8 linkstat; u8 asleep; bool irq_enabled; + bool vbus_enable; unsigned long features; }; @@ -370,20 +374,31 @@ static int twl6030_enable_irq(struct otg_transceiver *x) return 0; } -static int twl6030_set_vbus(struct otg_transceiver *x, bool enabled) +static void otg_set_vbus_work(struct work_struct *data) { - struct twl6030_usb *twl = xceiv_to_twl(x); + struct twl6030_usb *twl = container_of(data, struct twl6030_usb, + set_vbus_work); /* * Start driving VBUS. Set OPA_MODE bit in CHARGERUSB_CTRL1 * register. This enables boost mode. */ - if (enabled) + + if (twl->vbus_enable) twl6030_writeb(twl, TWL_MODULE_MAIN_CHARGE , 0x40, - CHARGERUSB_CTRL1); - else + CHARGERUSB_CTRL1); + else twl6030_writeb(twl, TWL_MODULE_MAIN_CHARGE , 0x00, - CHARGERUSB_CTRL1); + CHARGERUSB_CTRL1); +} + +static int twl6030_set_vbus(struct otg_transceiver *x, bool enabled) +{ + struct twl6030_usb *twl = xceiv_to_twl(x); + + twl->vbus_enable = enabled; + schedule_work(&twl->set_vbus_work); + return 0; } @@ -444,6 +459,8 @@ static int __devinit twl6030_usb_probe(struct platform_device *pdev) ATOMIC_INIT_NOTIFIER_HEAD(&twl->otg.notifier); + INIT_WORK(&twl->set_vbus_work, otg_set_vbus_work); + twl->irq_enabled = true; status = request_threaded_irq(twl->irq1, NULL, twl6030_usbotg_irq, IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, @@ -494,6 +511,7 @@ static int __exit twl6030_usb_remove(struct platform_device *pdev) regulator_put(twl->usb3v3); pdata->phy_exit(twl->dev); device_remove_file(twl->dev, &dev_attr_vbus); + cancel_work_sync(&twl->set_vbus_work); kfree(twl); return 0; diff --git a/drivers/usb/renesas_usbhs/Kconfig b/drivers/usb/renesas_usbhs/Kconfig index b2e6491..286cbf1 100644 --- a/drivers/usb/renesas_usbhs/Kconfig +++ b/drivers/usb/renesas_usbhs/Kconfig @@ -1,5 +1,5 @@ # -# Renesas USB Controller Drivers +# Renesas USBHS Controller Drivers # config USB_RENESAS_USBHS @@ -7,10 +7,9 @@ config USB_RENESAS_USBHS depends on SUPERH || ARCH_SHMOBILE default n help - Renesas USBHS is a discrete USB host and peripheral controller chip - that supports both full and high speed USB 2.0 data transfers. - It has nine or more configurable endpoints, and endpoint zero. + Renesas USBHS is a discrete USB host and peripheral controller chip + that supports both full and high speed USB 2.0 data transfers. + It has nine or more configurable endpoints, and endpoint zero. - Say "y" to link the driver statically, or "m" to build a - dynamically linked module called "renesas_usbhs" and force all - gadget drivers to also be dynamically linked. + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "renesas_usbhs" diff --git a/drivers/usb/renesas_usbhs/Makefile b/drivers/usb/renesas_usbhs/Makefile index b8798ad..ce08345 100644 --- a/drivers/usb/renesas_usbhs/Makefile +++ b/drivers/usb/renesas_usbhs/Makefile @@ -4,6 +4,6 @@ obj-$(CONFIG_USB_RENESAS_USBHS) += renesas_usbhs.o -renesas_usbhs-y := common.o mod.o pipe.o +renesas_usbhs-y := common.o mod.o pipe.o fifo.o renesas_usbhs-$(CONFIG_USB_RENESAS_USBHS_UDC) += mod_gadget.o diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index f3664d6..d8239e5 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -21,6 +21,29 @@ #include <linux/sysfs.h> #include "./common.h" +/* + * image of renesas_usbhs + * + * ex) gadget case + + * mod.c + * mod_gadget.c + * mod_host.c pipe.c fifo.c + * + * +-------+ +-----------+ + * | pipe0 |------>| fifo pio | + * +------------+ +-------+ +-----------+ + * | mod_gadget |=====> | pipe1 |--+ + * +------------+ +-------+ | +-----------+ + * | pipe2 | | +-| fifo dma0 | + * +------------+ +-------+ | | +-----------+ + * | mod_host | | pipe3 |<-|--+ + * +------------+ +-------+ | +-----------+ + * | .... | +--->| fifo dma1 | + * | .... | +-----------+ + */ + + #define USBHSF_RUNTIME_PWCTRL (1 << 0) /* status */ @@ -304,6 +327,8 @@ static int __devinit usbhs_probe(struct platform_device *pdev) priv->dparam->pipe_type = usbhsc_default_pipe_type; priv->dparam->pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type); } + if (!priv->dparam->pio_dma_border) + priv->dparam->pio_dma_border = 64; /* 64byte */ /* FIXME */ /* runtime power control ? */ @@ -323,10 +348,14 @@ static int __devinit usbhs_probe(struct platform_device *pdev) if (ret < 0) goto probe_end_iounmap; - ret = usbhs_mod_probe(priv); + ret = usbhs_fifo_probe(priv); if (ret < 0) goto probe_end_pipe_exit; + ret = usbhs_mod_probe(priv); + if (ret < 0) + goto probe_end_fifo_exit; + /* dev_set_drvdata should be called after usbhs_mod_init */ dev_set_drvdata(&pdev->dev, priv); @@ -374,6 +403,8 @@ probe_end_call_remove: usbhs_platform_call(priv, hardware_exit, pdev); probe_end_mod_exit: usbhs_mod_remove(priv); +probe_end_fifo_exit: + usbhs_fifo_remove(priv); probe_end_pipe_exit: usbhs_pipe_remove(priv); probe_end_iounmap: @@ -404,6 +435,7 @@ static int __devexit usbhs_remove(struct platform_device *pdev) usbhs_platform_call(priv, hardware_exit, pdev); usbhs_mod_remove(priv); + usbhs_fifo_remove(priv); usbhs_pipe_remove(priv); iounmap(priv->base); kfree(priv); diff --git a/drivers/usb/renesas_usbhs/common.h b/drivers/usb/renesas_usbhs/common.h index 0aadcb4..b410463 100644 --- a/drivers/usb/renesas_usbhs/common.h +++ b/drivers/usb/renesas_usbhs/common.h @@ -36,6 +36,12 @@ struct usbhs_priv; #define CFIFO 0x0014 #define CFIFOSEL 0x0020 #define CFIFOCTR 0x0022 +#define D0FIFO 0x0100 +#define D0FIFOSEL 0x0028 +#define D0FIFOCTR 0x002A +#define D1FIFO 0x0120 +#define D1FIFOSEL 0x002C +#define D1FIFOCTR 0x002E #define INTENB0 0x0030 #define INTENB1 0x0032 #define BRDYENB 0x0036 @@ -60,6 +66,30 @@ struct usbhs_priv; #define PIPEMAXP 0x006C #define PIPEPERI 0x006E #define PIPEnCTR 0x0070 +#define PIPE1TRE 0x0090 +#define PIPE1TRN 0x0092 +#define PIPE2TRE 0x0094 +#define PIPE2TRN 0x0096 +#define PIPE3TRE 0x0098 +#define PIPE3TRN 0x009A +#define PIPE4TRE 0x009C +#define PIPE4TRN 0x009E +#define PIPE5TRE 0x00A0 +#define PIPE5TRN 0x00A2 +#define PIPEBTRE 0x00A4 +#define PIPEBTRN 0x00A6 +#define PIPECTRE 0x00A8 +#define PIPECTRN 0x00AA +#define PIPEDTRE 0x00AC +#define PIPEDTRN 0x00AE +#define PIPEETRE 0x00B0 +#define PIPEETRN 0x00B2 +#define PIPEFTRE 0x00B4 +#define PIPEFTRN 0x00B6 +#define PIPE9TRE 0x00B8 +#define PIPE9TRN 0x00BA +#define PIPEATRE 0x00BC +#define PIPEATRN 0x00BE /* SYSCFG */ #define SCKE (1 << 10) /* USB Module Clock Enable */ @@ -78,6 +108,7 @@ struct usbhs_priv; #define RHST_HIGH_SPEED 3 /* High-speed connection */ /* CFIFOSEL */ +#define DREQE (1 << 12) /* DMA Transfer Request Enable */ #define MBW_32 (0x2 << 10) /* CFIFO Port Access Bit Width */ /* CFIFOCTR */ @@ -164,6 +195,10 @@ struct usbhs_priv; #define CCPL (1 << 2) /* Control Transfer End Enable */ +/* PIPEnTRE */ +#define TRENB (1 << 9) /* Transaction Counter Enable */ +#define TRCLR (1 << 8) /* Transaction Counter Clear */ + /* FRMNUM */ #define FRNM_MASK (0x7FF) @@ -194,6 +229,11 @@ struct usbhs_priv { * pipe control */ struct usbhs_pipe_info pipe_info; + + /* + * fifo control + */ + struct usbhs_fifo_info fifo_info; }; /* @@ -204,6 +244,10 @@ void usbhs_write(struct usbhs_priv *priv, u32 reg, u16 data); void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, u16 data); int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev); + +#define usbhs_lock(p, f) spin_lock_irqsave(usbhs_priv_to_lock(p), f) +#define usbhs_unlock(p, f) spin_unlock_irqrestore(usbhs_priv_to_lock(p), f) + /* * sysconfig */ diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c new file mode 100644 index 0000000..406893e --- /dev/null +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -0,0 +1,1015 @@ +/* + * Renesas USB driver + * + * Copyright (C) 2011 Renesas Solutions Corp. + * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ +#include <linux/delay.h> +#include <linux/io.h> +#include "./common.h" +#include "./pipe.h" + +#define usbhsf_get_cfifo(p) (&((p)->fifo_info.cfifo)) +#define usbhsf_get_d0fifo(p) (&((p)->fifo_info.d0fifo)) +#define usbhsf_get_d1fifo(p) (&((p)->fifo_info.d1fifo)) + +#define usbhsf_fifo_is_busy(f) ((f)->pipe) /* see usbhs_pipe_select_fifo */ + +/* + * packet initialize + */ +void usbhs_pkt_init(struct usbhs_pkt *pkt) +{ + pkt->dma = DMA_ADDR_INVALID; + INIT_LIST_HEAD(&pkt->node); +} + +/* + * packet control function + */ +static int usbhsf_null_handle(struct usbhs_pkt *pkt, int *is_done) +{ + struct usbhs_priv *priv = usbhs_pipe_to_priv(pkt->pipe); + struct device *dev = usbhs_priv_to_dev(priv); + + dev_err(dev, "null handler\n"); + + return -EINVAL; +} + +static struct usbhs_pkt_handle usbhsf_null_handler = { + .prepare = usbhsf_null_handle, + .try_run = usbhsf_null_handle, +}; + +void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt, + struct usbhs_pkt_handle *handler, + void *buf, int len, int zero) +{ + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + struct device *dev = usbhs_priv_to_dev(priv); + unsigned long flags; + + /******************** spin lock ********************/ + usbhs_lock(priv, flags); + + if (!handler) { + dev_err(dev, "no handler function\n"); + handler = &usbhsf_null_handler; + } + + list_del_init(&pkt->node); + list_add_tail(&pkt->node, &pipe->list); + + pkt->pipe = pipe; + pkt->buf = buf; + pkt->handler = handler; + pkt->length = len; + pkt->zero = zero; + pkt->actual = 0; + + usbhs_unlock(priv, flags); + /******************** spin unlock ******************/ + + usbhs_pkt_start(pipe); +} + +static void __usbhsf_pkt_del(struct usbhs_pkt *pkt) +{ + list_del_init(&pkt->node); +} + +static struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe) +{ + if (list_empty(&pipe->list)) + return NULL; + + return list_entry(pipe->list.next, struct usbhs_pkt, node); +} + +struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt) +{ + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + unsigned long flags; + + /******************** spin lock ********************/ + usbhs_lock(priv, flags); + + if (!pkt) + pkt = __usbhsf_pkt_get(pipe); + + if (pkt) + __usbhsf_pkt_del(pkt); + + usbhs_unlock(priv, flags); + /******************** spin unlock ******************/ + + return pkt; +} + +int __usbhs_pkt_handler(struct usbhs_pipe *pipe, int type) +{ + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv); + struct usbhs_pkt *pkt; + struct device *dev = usbhs_priv_to_dev(priv); + int (*func)(struct usbhs_pkt *pkt, int *is_done); + unsigned long flags; + int ret = 0; + int is_done = 0; + + /******************** spin lock ********************/ + usbhs_lock(priv, flags); + + pkt = __usbhsf_pkt_get(pipe); + if (!pkt) + goto __usbhs_pkt_handler_end; + + switch (type) { + case USBHSF_PKT_PREPARE: + func = pkt->handler->prepare; + break; + case USBHSF_PKT_TRY_RUN: + func = pkt->handler->try_run; + break; + case USBHSF_PKT_DMA_DONE: + func = pkt->handler->dma_done; + break; + default: + dev_err(dev, "unknown pkt hander\n"); + goto __usbhs_pkt_handler_end; + } + + ret = func(pkt, &is_done); + + if (is_done) + __usbhsf_pkt_del(pkt); + +__usbhs_pkt_handler_end: + usbhs_unlock(priv, flags); + /******************** spin unlock ******************/ + + if (is_done) { + info->done(pkt); + usbhs_pkt_start(pipe); + } + + return ret; +} + +/* + * irq enable/disable function + */ +#define usbhsf_irq_empty_ctrl(p, e) usbhsf_irq_callback_ctrl(p, bempsts, e) +#define usbhsf_irq_ready_ctrl(p, e) usbhsf_irq_callback_ctrl(p, brdysts, e) +#define usbhsf_irq_callback_ctrl(pipe, status, enable) \ + ({ \ + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); \ + struct usbhs_mod *mod = usbhs_mod_get_current(priv); \ + u16 status = (1 << usbhs_pipe_number(pipe)); \ + if (!mod) \ + return; \ + if (enable) \ + mod->irq_##status |= status; \ + else \ + mod->irq_##status &= ~status; \ + usbhs_irq_callback_update(priv, mod); \ + }) + +static void usbhsf_tx_irq_ctrl(struct usbhs_pipe *pipe, int enable) +{ + /* + * And DCP pipe can NOT use "ready interrupt" for "send" + * it should use "empty" interrupt. + * see + * "Operation" - "Interrupt Function" - "BRDY Interrupt" + * + * on the other hand, normal pipe can use "ready interrupt" for "send" + * even though it is single/double buffer + */ + if (usbhs_pipe_is_dcp(pipe)) + usbhsf_irq_empty_ctrl(pipe, enable); + else + usbhsf_irq_ready_ctrl(pipe, enable); +} + +static void usbhsf_rx_irq_ctrl(struct usbhs_pipe *pipe, int enable) +{ + usbhsf_irq_ready_ctrl(pipe, enable); +} + +/* + * FIFO ctrl + */ +static void usbhsf_send_terminator(struct usbhs_pipe *pipe, + struct usbhs_fifo *fifo) +{ + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + + usbhs_bset(priv, fifo->ctr, BVAL, BVAL); +} + +static int usbhsf_fifo_barrier(struct usbhs_priv *priv, + struct usbhs_fifo *fifo) +{ + int timeout = 1024; + + do { + /* The FIFO port is accessible */ + if (usbhs_read(priv, fifo->ctr) & FRDY) + return 0; + + udelay(10); + } while (timeout--); + + return -EBUSY; +} + +static void usbhsf_fifo_clear(struct usbhs_pipe *pipe, + struct usbhs_fifo *fifo) +{ + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + + if (!usbhs_pipe_is_dcp(pipe)) + usbhsf_fifo_barrier(priv, fifo); + + usbhs_write(priv, fifo->ctr, BCLR); +} + +static int usbhsf_fifo_rcv_len(struct usbhs_priv *priv, + struct usbhs_fifo *fifo) +{ + return usbhs_read(priv, fifo->ctr) & DTLN_MASK; +} + +static void usbhsf_fifo_unselect(struct usbhs_pipe *pipe, + struct usbhs_fifo *fifo) +{ + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + + usbhs_pipe_select_fifo(pipe, NULL); + usbhs_write(priv, fifo->sel, 0); +} + +static int usbhsf_fifo_select(struct usbhs_pipe *pipe, + struct usbhs_fifo *fifo, + int write) +{ + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + struct device *dev = usbhs_priv_to_dev(priv); + int timeout = 1024; + u16 mask = ((1 << 5) | 0xF); /* mask of ISEL | CURPIPE */ + u16 base = usbhs_pipe_number(pipe); /* CURPIPE */ + + if (usbhs_pipe_is_busy(pipe) || + usbhsf_fifo_is_busy(fifo)) + return -EBUSY; + + if (usbhs_pipe_is_dcp(pipe)) + base |= (1 == write) << 5; /* ISEL */ + + /* "base" will be used below */ + usbhs_write(priv, fifo->sel, base | MBW_32); + + /* check ISEL and CURPIPE value */ + while (timeout--) { + if (base == (mask & usbhs_read(priv, fifo->sel))) { + usbhs_pipe_select_fifo(pipe, fifo); + return 0; + } + udelay(10); + } + + dev_err(dev, "fifo select error\n"); + + return -EIO; +} + +/* + * PIO push handler + */ +static int usbhsf_pio_try_push(struct usbhs_pkt *pkt, int *is_done) +{ + struct usbhs_pipe *pipe = pkt->pipe; + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + struct device *dev = usbhs_priv_to_dev(priv); + struct usbhs_fifo *fifo = usbhsf_get_cfifo(priv); /* CFIFO */ + void __iomem *addr = priv->base + fifo->port; + u8 *buf; + int maxp = usbhs_pipe_get_maxpacket(pipe); + int total_len; + int i, ret, len; + int is_short; + + ret = usbhsf_fifo_select(pipe, fifo, 1); + if (ret < 0) + return 0; + + ret = usbhs_pipe_is_accessible(pipe); + if (ret < 0) { + /* inaccessible pipe is not an error */ + ret = 0; + goto usbhs_fifo_write_busy; + } + + ret = usbhsf_fifo_barrier(priv, fifo); + if (ret < 0) + goto usbhs_fifo_write_busy; + + buf = pkt->buf + pkt->actual; + len = pkt->length - pkt->actual; + len = min(len, maxp); + total_len = len; + is_short = total_len < maxp; + + /* + * FIXME + * + * 32-bit access only + */ + if (len >= 4 && !((unsigned long)buf & 0x03)) { + iowrite32_rep(addr, buf, len / 4); + len %= 4; + buf += total_len - len; + } + + /* the rest operation */ + for (i = 0; i < len; i++) + iowrite8(buf[i], addr + (0x03 - (i & 0x03))); + + /* + * variable update + */ + pkt->actual += total_len; + + if (pkt->actual < pkt->length) + *is_done = 0; /* there are remainder data */ + else if (is_short) + *is_done = 1; /* short packet */ + else + *is_done = !pkt->zero; /* send zero packet ? */ + + /* + * pipe/irq handling + */ + if (is_short) + usbhsf_send_terminator(pipe, fifo); + + usbhsf_tx_irq_ctrl(pipe, !*is_done); + usbhs_pipe_enable(pipe); + + dev_dbg(dev, " send %d (%d/ %d/ %d/ %d)\n", + usbhs_pipe_number(pipe), + pkt->length, pkt->actual, *is_done, pkt->zero); + + /* + * Transmission end + */ + if (*is_done) { + if (usbhs_pipe_is_dcp(pipe)) + usbhs_dcp_control_transfer_done(pipe); + } + + usbhsf_fifo_unselect(pipe, fifo); + + return 0; + +usbhs_fifo_write_busy: + usbhsf_fifo_unselect(pipe, fifo); + + /* + * pipe is busy. + * retry in interrupt + */ + usbhsf_tx_irq_ctrl(pipe, 1); + + return ret; +} + +struct usbhs_pkt_handle usbhs_fifo_pio_push_handler = { + .prepare = usbhsf_pio_try_push, + .try_run = usbhsf_pio_try_push, +}; + +/* + * PIO pop handler + */ +static int usbhsf_prepare_pop(struct usbhs_pkt *pkt, int *is_done) +{ + struct usbhs_pipe *pipe = pkt->pipe; + + if (usbhs_pipe_is_busy(pipe)) + return 0; + + /* + * pipe enable to prepare packet receive + */ + + usbhs_pipe_enable(pipe); + usbhsf_rx_irq_ctrl(pipe, 1); + + return 0; +} + +static int usbhsf_pio_try_pop(struct usbhs_pkt *pkt, int *is_done) +{ + struct usbhs_pipe *pipe = pkt->pipe; + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + struct device *dev = usbhs_priv_to_dev(priv); + struct usbhs_fifo *fifo = usbhsf_get_cfifo(priv); /* CFIFO */ + void __iomem *addr = priv->base + fifo->port; + u8 *buf; + u32 data = 0; + int maxp = usbhs_pipe_get_maxpacket(pipe); + int rcv_len, len; + int i, ret; + int total_len = 0; + + ret = usbhsf_fifo_select(pipe, fifo, 0); + if (ret < 0) + return 0; + + ret = usbhsf_fifo_barrier(priv, fifo); + if (ret < 0) + goto usbhs_fifo_read_busy; + + rcv_len = usbhsf_fifo_rcv_len(priv, fifo); + + buf = pkt->buf + pkt->actual; + len = pkt->length - pkt->actual; + len = min(len, rcv_len); + total_len = len; + + /* + * Buffer clear if Zero-Length packet + * + * see + * "Operation" - "FIFO Buffer Memory" - "FIFO Port Function" + */ + if (0 == rcv_len) { + usbhsf_fifo_clear(pipe, fifo); + goto usbhs_fifo_read_end; + } + + /* + * FIXME + * + * 32-bit access only + */ + if (len >= 4 && !((unsigned long)buf & 0x03)) { + ioread32_rep(addr, buf, len / 4); + len %= 4; + buf += total_len - len; + } + + /* the rest operation */ + for (i = 0; i < len; i++) { + if (!(i & 0x03)) + data = ioread32(addr); + + buf[i] = (data >> ((i & 0x03) * 8)) & 0xff; + } + + pkt->actual += total_len; + +usbhs_fifo_read_end: + if ((pkt->actual == pkt->length) || /* receive all data */ + (total_len < maxp)) { /* short packet */ + *is_done = 1; + usbhsf_rx_irq_ctrl(pipe, 0); + usbhs_pipe_disable(pipe); + } + + dev_dbg(dev, " recv %d (%d/ %d/ %d/ %d)\n", + usbhs_pipe_number(pipe), + pkt->length, pkt->actual, *is_done, pkt->zero); + +usbhs_fifo_read_busy: + usbhsf_fifo_unselect(pipe, fifo); + + return ret; +} + +struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler = { + .prepare = usbhsf_prepare_pop, + .try_run = usbhsf_pio_try_pop, +}; + +/* + * DCP ctrol statge handler + */ +static int usbhsf_ctrl_stage_end(struct usbhs_pkt *pkt, int *is_done) +{ + usbhs_dcp_control_transfer_done(pkt->pipe); + + *is_done = 1; + + return 0; +} + +struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler = { + .prepare = usbhsf_ctrl_stage_end, + .try_run = usbhsf_ctrl_stage_end, +}; + +/* + * DMA fifo functions + */ +static struct dma_chan *usbhsf_dma_chan_get(struct usbhs_fifo *fifo, + struct usbhs_pkt *pkt) +{ + if (&usbhs_fifo_dma_push_handler == pkt->handler) + return fifo->tx_chan; + + if (&usbhs_fifo_dma_pop_handler == pkt->handler) + return fifo->rx_chan; + + return NULL; +} + +static struct usbhs_fifo *usbhsf_get_dma_fifo(struct usbhs_priv *priv, + struct usbhs_pkt *pkt) +{ + struct usbhs_fifo *fifo; + + /* DMA :: D0FIFO */ + fifo = usbhsf_get_d0fifo(priv); + if (usbhsf_dma_chan_get(fifo, pkt) && + !usbhsf_fifo_is_busy(fifo)) + return fifo; + + /* DMA :: D1FIFO */ + fifo = usbhsf_get_d1fifo(priv); + if (usbhsf_dma_chan_get(fifo, pkt) && + !usbhsf_fifo_is_busy(fifo)) + return fifo; + + return NULL; +} + +#define usbhsf_dma_start(p, f) __usbhsf_dma_ctrl(p, f, DREQE) +#define usbhsf_dma_stop(p, f) __usbhsf_dma_ctrl(p, f, 0) +static void __usbhsf_dma_ctrl(struct usbhs_pipe *pipe, + struct usbhs_fifo *fifo, + u16 dreqe) +{ + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + + usbhs_bset(priv, fifo->sel, DREQE, dreqe); +} + +#define usbhsf_dma_map(p) __usbhsf_dma_map_ctrl(p, 1) +#define usbhsf_dma_unmap(p) __usbhsf_dma_map_ctrl(p, 0) +static int __usbhsf_dma_map_ctrl(struct usbhs_pkt *pkt, int map) +{ + struct usbhs_pipe *pipe = pkt->pipe; + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv); + + return info->dma_map_ctrl(pkt, map); +} + +static void usbhsf_dma_complete(void *arg); +static void usbhsf_dma_prepare_tasklet(unsigned long data) +{ + struct usbhs_pkt *pkt = (struct usbhs_pkt *)data; + struct usbhs_pipe *pipe = pkt->pipe; + struct usbhs_fifo *fifo = usbhs_pipe_to_fifo(pipe); + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + struct scatterlist sg; + struct dma_async_tx_descriptor *desc; + struct dma_chan *chan = usbhsf_dma_chan_get(fifo, pkt); + struct device *dev = usbhs_priv_to_dev(priv); + enum dma_data_direction dir; + dma_cookie_t cookie; + + dir = usbhs_pipe_is_dir_in(pipe) ? DMA_FROM_DEVICE : DMA_TO_DEVICE; + + sg_init_table(&sg, 1); + sg_set_page(&sg, virt_to_page(pkt->dma), + pkt->length, offset_in_page(pkt->dma)); + sg_dma_address(&sg) = pkt->dma + pkt->actual; + sg_dma_len(&sg) = pkt->trans; + + desc = chan->device->device_prep_slave_sg(chan, &sg, 1, dir, + DMA_PREP_INTERRUPT | + DMA_CTRL_ACK); + if (!desc) + return; + + desc->callback = usbhsf_dma_complete; + desc->callback_param = pipe; + + cookie = desc->tx_submit(desc); + if (cookie < 0) { + dev_err(dev, "Failed to submit dma descriptor\n"); + return; + } + + dev_dbg(dev, " %s %d (%d/ %d)\n", + fifo->name, usbhs_pipe_number(pipe), pkt->length, pkt->zero); + + usbhsf_dma_start(pipe, fifo); + dma_async_issue_pending(chan); +} + +/* + * DMA push handler + */ +static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done) +{ + struct usbhs_pipe *pipe = pkt->pipe; + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + struct usbhs_fifo *fifo; + int len = pkt->length - pkt->actual; + int ret; + + if (usbhs_pipe_is_busy(pipe)) + return 0; + + /* use PIO if packet is less than pio_dma_border or pipe is DCP */ + if ((len < usbhs_get_dparam(priv, pio_dma_border)) || + usbhs_pipe_is_dcp(pipe)) + goto usbhsf_pio_prepare_push; + + if (len % 4) /* 32bit alignment */ + goto usbhsf_pio_prepare_push; + + if (((u32)pkt->buf + pkt->actual) & 0x7) /* 8byte alignment */ + goto usbhsf_pio_prepare_push; + + /* get enable DMA fifo */ + fifo = usbhsf_get_dma_fifo(priv, pkt); + if (!fifo) + goto usbhsf_pio_prepare_push; + + if (usbhsf_dma_map(pkt) < 0) + goto usbhsf_pio_prepare_push; + + ret = usbhsf_fifo_select(pipe, fifo, 0); + if (ret < 0) + goto usbhsf_pio_prepare_push_unmap; + + pkt->trans = len; + + tasklet_init(&fifo->tasklet, + usbhsf_dma_prepare_tasklet, + (unsigned long)pkt); + + tasklet_schedule(&fifo->tasklet); + + return 0; + +usbhsf_pio_prepare_push_unmap: + usbhsf_dma_unmap(pkt); +usbhsf_pio_prepare_push: + /* + * change handler to PIO + */ + pkt->handler = &usbhs_fifo_pio_push_handler; + + return pkt->handler->prepare(pkt, is_done); +} + +static int usbhsf_dma_push_done(struct usbhs_pkt *pkt, int *is_done) +{ + struct usbhs_pipe *pipe = pkt->pipe; + + pkt->actual = pkt->trans; + + *is_done = !pkt->zero; /* send zero packet ? */ + + usbhsf_dma_stop(pipe, pipe->fifo); + usbhsf_dma_unmap(pkt); + usbhsf_fifo_unselect(pipe, pipe->fifo); + + return 0; +} + +struct usbhs_pkt_handle usbhs_fifo_dma_push_handler = { + .prepare = usbhsf_dma_prepare_push, + .dma_done = usbhsf_dma_push_done, +}; + +/* + * DMA pop handler + */ +static int usbhsf_dma_try_pop(struct usbhs_pkt *pkt, int *is_done) +{ + struct usbhs_pipe *pipe = pkt->pipe; + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + struct usbhs_fifo *fifo; + int len, ret; + + if (usbhs_pipe_is_busy(pipe)) + return 0; + + if (usbhs_pipe_is_dcp(pipe)) + goto usbhsf_pio_prepare_pop; + + /* get enable DMA fifo */ + fifo = usbhsf_get_dma_fifo(priv, pkt); + if (!fifo) + goto usbhsf_pio_prepare_pop; + + if (((u32)pkt->buf + pkt->actual) & 0x7) /* 8byte alignment */ + goto usbhsf_pio_prepare_pop; + + ret = usbhsf_fifo_select(pipe, fifo, 0); + if (ret < 0) + goto usbhsf_pio_prepare_pop; + + /* use PIO if packet is less than pio_dma_border */ + len = usbhsf_fifo_rcv_len(priv, fifo); + len = min(pkt->length - pkt->actual, len); + if (len % 4) /* 32bit alignment */ + goto usbhsf_pio_prepare_pop_unselect; + + if (len < usbhs_get_dparam(priv, pio_dma_border)) + goto usbhsf_pio_prepare_pop_unselect; + + ret = usbhsf_fifo_barrier(priv, fifo); + if (ret < 0) + goto usbhsf_pio_prepare_pop_unselect; + + if (usbhsf_dma_map(pkt) < 0) + goto usbhsf_pio_prepare_pop_unselect; + + /* DMA */ + + /* + * usbhs_fifo_dma_pop_handler :: prepare + * enabled irq to come here. + * but it is no longer needed for DMA. disable it. + */ + usbhsf_rx_irq_ctrl(pipe, 0); + + pkt->trans = len; + + tasklet_init(&fifo->tasklet, + usbhsf_dma_prepare_tasklet, + (unsigned long)pkt); + + tasklet_schedule(&fifo->tasklet); + + return 0; + +usbhsf_pio_prepare_pop_unselect: + usbhsf_fifo_unselect(pipe, fifo); +usbhsf_pio_prepare_pop: + + /* + * change handler to PIO + */ + pkt->handler = &usbhs_fifo_pio_pop_handler; + + return pkt->handler->try_run(pkt, is_done); +} + +static int usbhsf_dma_pop_done(struct usbhs_pkt *pkt, int *is_done) +{ + struct usbhs_pipe *pipe = pkt->pipe; + int maxp = usbhs_pipe_get_maxpacket(pipe); + + usbhsf_dma_stop(pipe, pipe->fifo); + usbhsf_dma_unmap(pkt); + usbhsf_fifo_unselect(pipe, pipe->fifo); + + pkt->actual += pkt->trans; + + if ((pkt->actual == pkt->length) || /* receive all data */ + (pkt->trans < maxp)) { /* short packet */ + *is_done = 1; + } else { + /* re-enable */ + usbhsf_prepare_pop(pkt, is_done); + } + + return 0; +} + +struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler = { + .prepare = usbhsf_prepare_pop, + .try_run = usbhsf_dma_try_pop, + .dma_done = usbhsf_dma_pop_done +}; + +/* + * DMA setting + */ +static bool usbhsf_dma_filter(struct dma_chan *chan, void *param) +{ + struct sh_dmae_slave *slave = param; + + /* + * FIXME + * + * usbhs doesn't recognize id = 0 as valid DMA + */ + if (0 == slave->slave_id) + return false; + + chan->private = slave; + + return true; +} + +static void usbhsf_dma_quit(struct usbhs_priv *priv, struct usbhs_fifo *fifo) +{ + if (fifo->tx_chan) + dma_release_channel(fifo->tx_chan); + if (fifo->rx_chan) + dma_release_channel(fifo->rx_chan); + + fifo->tx_chan = NULL; + fifo->rx_chan = NULL; +} + +static void usbhsf_dma_init(struct usbhs_priv *priv, + struct usbhs_fifo *fifo) +{ + struct device *dev = usbhs_priv_to_dev(priv); + dma_cap_mask_t mask; + + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); + fifo->tx_chan = dma_request_channel(mask, usbhsf_dma_filter, + &fifo->tx_slave); + + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); + fifo->rx_chan = dma_request_channel(mask, usbhsf_dma_filter, + &fifo->rx_slave); + + if (fifo->tx_chan || fifo->rx_chan) + dev_dbg(dev, "enable DMAEngine (%s%s%s)\n", + fifo->name, + fifo->tx_chan ? "[TX]" : " ", + fifo->rx_chan ? "[RX]" : " "); +} + +/* + * irq functions + */ +static int usbhsf_irq_empty(struct usbhs_priv *priv, + struct usbhs_irq_state *irq_state) +{ + struct usbhs_pipe *pipe; + struct device *dev = usbhs_priv_to_dev(priv); + int i, ret; + + if (!irq_state->bempsts) { + dev_err(dev, "debug %s !!\n", __func__); + return -EIO; + } + + dev_dbg(dev, "irq empty [0x%04x]\n", irq_state->bempsts); + + /* + * search interrupted "pipe" + * not "uep". + */ + usbhs_for_each_pipe_with_dcp(pipe, priv, i) { + if (!(irq_state->bempsts & (1 << i))) + continue; + + ret = usbhs_pkt_run(pipe); + if (ret < 0) + dev_err(dev, "irq_empty run_error %d : %d\n", i, ret); + } + + return 0; +} + +static int usbhsf_irq_ready(struct usbhs_priv *priv, + struct usbhs_irq_state *irq_state) +{ + struct usbhs_pipe *pipe; + struct device *dev = usbhs_priv_to_dev(priv); + int i, ret; + + if (!irq_state->brdysts) { + dev_err(dev, "debug %s !!\n", __func__); + return -EIO; + } + + dev_dbg(dev, "irq ready [0x%04x]\n", irq_state->brdysts); + + /* + * search interrupted "pipe" + * not "uep". + */ + usbhs_for_each_pipe_with_dcp(pipe, priv, i) { + if (!(irq_state->brdysts & (1 << i))) + continue; + + ret = usbhs_pkt_run(pipe); + if (ret < 0) + dev_err(dev, "irq_ready run_error %d : %d\n", i, ret); + } + + return 0; +} + +static void usbhsf_dma_complete(void *arg) +{ + struct usbhs_pipe *pipe = arg; + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + struct device *dev = usbhs_priv_to_dev(priv); + int ret; + + ret = usbhs_pkt_dmadone(pipe); + if (ret < 0) + dev_err(dev, "dma_complete run_error %d : %d\n", + usbhs_pipe_number(pipe), ret); +} + +/* + * fifo init + */ +void usbhs_fifo_init(struct usbhs_priv *priv) +{ + struct usbhs_mod *mod = usbhs_mod_get_current(priv); + struct usbhs_fifo *cfifo = usbhsf_get_cfifo(priv); + struct usbhs_fifo *d0fifo = usbhsf_get_d0fifo(priv); + struct usbhs_fifo *d1fifo = usbhsf_get_d1fifo(priv); + + mod->irq_empty = usbhsf_irq_empty; + mod->irq_ready = usbhsf_irq_ready; + mod->irq_bempsts = 0; + mod->irq_brdysts = 0; + + cfifo->pipe = NULL; + cfifo->tx_chan = NULL; + cfifo->rx_chan = NULL; + + d0fifo->pipe = NULL; + d0fifo->tx_chan = NULL; + d0fifo->rx_chan = NULL; + + d1fifo->pipe = NULL; + d1fifo->tx_chan = NULL; + d1fifo->rx_chan = NULL; + + usbhsf_dma_init(priv, usbhsf_get_d0fifo(priv)); + usbhsf_dma_init(priv, usbhsf_get_d1fifo(priv)); +} + +void usbhs_fifo_quit(struct usbhs_priv *priv) +{ + struct usbhs_mod *mod = usbhs_mod_get_current(priv); + + mod->irq_empty = NULL; + mod->irq_ready = NULL; + mod->irq_bempsts = 0; + mod->irq_brdysts = 0; + + usbhsf_dma_quit(priv, usbhsf_get_d0fifo(priv)); + usbhsf_dma_quit(priv, usbhsf_get_d1fifo(priv)); +} + +int usbhs_fifo_probe(struct usbhs_priv *priv) +{ + struct usbhs_fifo *fifo; + + /* CFIFO */ + fifo = usbhsf_get_cfifo(priv); + fifo->name = "CFIFO"; + fifo->port = CFIFO; + fifo->sel = CFIFOSEL; + fifo->ctr = CFIFOCTR; + + /* D0FIFO */ + fifo = usbhsf_get_d0fifo(priv); + fifo->name = "D0FIFO"; + fifo->port = D0FIFO; + fifo->sel = D0FIFOSEL; + fifo->ctr = D0FIFOCTR; + fifo->tx_slave.slave_id = usbhs_get_dparam(priv, d0_tx_id); + fifo->rx_slave.slave_id = usbhs_get_dparam(priv, d0_rx_id); + + /* D1FIFO */ + fifo = usbhsf_get_d1fifo(priv); + fifo->name = "D1FIFO"; + fifo->port = D1FIFO; + fifo->sel = D1FIFOSEL; + fifo->ctr = D1FIFOCTR; + fifo->tx_slave.slave_id = usbhs_get_dparam(priv, d1_tx_id); + fifo->rx_slave.slave_id = usbhs_get_dparam(priv, d1_rx_id); + + return 0; +} + +void usbhs_fifo_remove(struct usbhs_priv *priv) +{ +} diff --git a/drivers/usb/renesas_usbhs/fifo.h b/drivers/usb/renesas_usbhs/fifo.h new file mode 100644 index 0000000..ed6d8e5 --- /dev/null +++ b/drivers/usb/renesas_usbhs/fifo.h @@ -0,0 +1,104 @@ +/* + * Renesas USB driver + * + * Copyright (C) 2011 Renesas Solutions Corp. + * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ +#ifndef RENESAS_USB_FIFO_H +#define RENESAS_USB_FIFO_H + +#include <linux/interrupt.h> +#include <linux/sh_dma.h> +#include <asm/dma.h> +#include "pipe.h" + +#define DMA_ADDR_INVALID (~(dma_addr_t)0) + +struct usbhs_fifo { + char *name; + u32 port; /* xFIFO */ + u32 sel; /* xFIFOSEL */ + u32 ctr; /* xFIFOCTR */ + + struct usbhs_pipe *pipe; + struct tasklet_struct tasklet; + + struct dma_chan *tx_chan; + struct dma_chan *rx_chan; + + struct sh_dmae_slave tx_slave; + struct sh_dmae_slave rx_slave; +}; + +struct usbhs_fifo_info { + struct usbhs_fifo cfifo; + struct usbhs_fifo d0fifo; + struct usbhs_fifo d1fifo; +}; + +struct usbhs_pkt_handle; +struct usbhs_pkt { + struct list_head node; + struct usbhs_pipe *pipe; + struct usbhs_pkt_handle *handler; + dma_addr_t dma; + void *buf; + int length; + int trans; + int actual; + int zero; +}; + +struct usbhs_pkt_handle { + int (*prepare)(struct usbhs_pkt *pkt, int *is_done); + int (*try_run)(struct usbhs_pkt *pkt, int *is_done); + int (*dma_done)(struct usbhs_pkt *pkt, int *is_done); +}; + +/* + * fifo + */ +int usbhs_fifo_probe(struct usbhs_priv *priv); +void usbhs_fifo_remove(struct usbhs_priv *priv); +void usbhs_fifo_init(struct usbhs_priv *priv); +void usbhs_fifo_quit(struct usbhs_priv *priv); + +/* + * packet info + */ +enum { + USBHSF_PKT_PREPARE, + USBHSF_PKT_TRY_RUN, + USBHSF_PKT_DMA_DONE, +}; + +extern struct usbhs_pkt_handle usbhs_fifo_pio_push_handler; +extern struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler; +extern struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler; + +extern struct usbhs_pkt_handle usbhs_fifo_dma_push_handler; +extern struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler; + + +void usbhs_pkt_init(struct usbhs_pkt *pkt); +void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt, + struct usbhs_pkt_handle *handler, + void *buf, int len, int zero); +struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt); +int __usbhs_pkt_handler(struct usbhs_pipe *pipe, int type); + +#define usbhs_pkt_start(p) __usbhs_pkt_handler(p, USBHSF_PKT_PREPARE) +#define usbhs_pkt_run(p) __usbhs_pkt_handler(p, USBHSF_PKT_TRY_RUN) +#define usbhs_pkt_dmadone(p) __usbhs_pkt_handler(p, USBHSF_PKT_DMA_DONE) + +#endif /* RENESAS_USB_FIFO_H */ diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index 547486c..ba79dbf 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -26,26 +26,25 @@ */ struct usbhsg_request { struct usb_request req; - struct list_head node; + struct usbhs_pkt pkt; }; #define EP_NAME_SIZE 8 struct usbhsg_gpriv; -struct usbhsg_pipe_handle; struct usbhsg_uep { struct usb_ep ep; struct usbhs_pipe *pipe; - struct list_head list; char ep_name[EP_NAME_SIZE]; struct usbhsg_gpriv *gpriv; - struct usbhsg_pipe_handle *handler; + struct usbhs_pkt_handle *handler; }; struct usbhsg_gpriv { struct usb_gadget gadget; struct usbhs_mod mod; + struct list_head link; struct usbhsg_uep *uep; int uep_size; @@ -58,12 +57,6 @@ struct usbhsg_gpriv { #define USBHSG_STATUS_WEDGE (1 << 2) }; -struct usbhsg_pipe_handle { - int (*prepare)(struct usbhsg_uep *uep, struct usbhsg_request *ureq); - int (*try_run)(struct usbhsg_uep *uep, struct usbhsg_request *ureq); - void (*irq_mask)(struct usbhsg_uep *uep, int enable); -}; - struct usbhsg_recip_handle { char *name; int (*device)(struct usbhs_priv *priv, struct usbhsg_uep *uep, @@ -100,7 +93,6 @@ struct usbhsg_recip_handle { container_of(r, struct usbhsg_request, req) #define usbhsg_ep_to_uep(e) container_of(e, struct usbhsg_uep, ep) -#define usbhsg_gpriv_to_lock(gp) usbhs_priv_to_lock((gp)->mod.priv) #define usbhsg_gpriv_to_dev(gp) usbhs_priv_to_dev((gp)->mod.priv) #define usbhsg_gpriv_to_priv(gp) ((gp)->mod.priv) #define usbhsg_gpriv_to_dcp(gp) ((gp)->uep) @@ -110,6 +102,10 @@ struct usbhsg_recip_handle { #define usbhsg_pipe_to_uep(p) ((p)->mod_private) #define usbhsg_is_dcp(u) ((u) == usbhsg_gpriv_to_dcp((u)->gpriv)) +#define usbhsg_ureq_to_pkt(u) (&(u)->pkt) +#define usbhsg_pkt_to_ureq(i) \ + container_of(i, struct usbhsg_request, pkt) + #define usbhsg_is_not_connected(gp) ((gp)->gadget.speed == USB_SPEED_UNKNOWN) /* status */ @@ -118,37 +114,18 @@ struct usbhsg_recip_handle { #define usbhsg_status_clr(gp, b) (gp->status &= ~b) #define usbhsg_status_has(gp, b) (gp->status & b) -/* - * usbhsg_trylock - * - * This driver don't use spin_try_lock - * to avoid warning of CONFIG_DEBUG_SPINLOCK - */ -static spinlock_t *usbhsg_trylock(struct usbhsg_gpriv *gpriv, - unsigned long *flags) -{ - spinlock_t *lock = usbhsg_gpriv_to_lock(gpriv); - - /* check spin lock status - * to avoid deadlock/nest */ - if (spin_is_locked(lock)) - return NULL; +/* controller */ +LIST_HEAD(the_controller_link); - spin_lock_irqsave(lock, *flags); - - return lock; -} - -static void usbhsg_unlock(spinlock_t *lock, unsigned long *flags) -{ - if (!lock) - return; - - spin_unlock_irqrestore(lock, *flags); -} +#define usbhsg_for_each_controller(gpriv)\ + list_for_each_entry(gpriv, &the_controller_link, link) +#define usbhsg_controller_register(gpriv)\ + list_add_tail(&(gpriv)->link, &the_controller_link) +#define usbhsg_controller_unregister(gpriv)\ + list_del_init(&(gpriv)->link) /* - * list push/pop + * queue push/pop */ static void usbhsg_queue_push(struct usbhsg_uep *uep, struct usbhsg_request *ureq) @@ -156,79 +133,17 @@ static void usbhsg_queue_push(struct usbhsg_uep *uep, struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); struct device *dev = usbhsg_gpriv_to_dev(gpriv); struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); + struct usbhs_pkt *pkt = usbhsg_ureq_to_pkt(ureq); + struct usb_request *req = &ureq->req; - /* - ********* assume under spin lock ********* - */ - list_del_init(&ureq->node); - list_add_tail(&ureq->node, &uep->list); - ureq->req.actual = 0; - ureq->req.status = -EINPROGRESS; + req->actual = 0; + req->status = -EINPROGRESS; + usbhs_pkt_push(pipe, pkt, uep->handler, + req->buf, req->length, req->zero); dev_dbg(dev, "pipe %d : queue push (%d)\n", usbhs_pipe_number(pipe), - ureq->req.length); -} - -static struct usbhsg_request *usbhsg_queue_get(struct usbhsg_uep *uep) -{ - /* - ********* assume under spin lock ********* - */ - if (list_empty(&uep->list)) - return NULL; - - return list_entry(uep->list.next, struct usbhsg_request, node); -} - -#define usbhsg_queue_prepare(uep) __usbhsg_queue_handler(uep, 1); -#define usbhsg_queue_handle(uep) __usbhsg_queue_handler(uep, 0); -static int __usbhsg_queue_handler(struct usbhsg_uep *uep, int prepare) -{ - struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); - struct device *dev = usbhsg_gpriv_to_dev(gpriv); - struct usbhsg_request *ureq; - spinlock_t *lock; - unsigned long flags; - int ret = 0; - - if (!uep->handler) { - dev_err(dev, "no handler function\n"); - return -EIO; - } - - /* - * CAUTION [*queue handler*] - * - * This function will be called for start/restart queue operation. - * OTOH the most much worry for USB driver is spinlock nest. - * Specially it are - * - usb_ep_ops :: queue - * - usb_request :: complete - * - * But the caller of this function need not care about spinlock. - * This function is using usbhsg_trylock for it. - * if "is_locked" is 1, this mean this function lock it. - * but if it is 0, this mean it is already under spin lock. - * see also - * CAUTION [*endpoint queue*] - * CAUTION [*request complete*] - */ - - /****************** spin try lock *******************/ - lock = usbhsg_trylock(gpriv, &flags); - - ureq = usbhsg_queue_get(uep); - if (ureq) { - if (prepare) - ret = uep->handler->prepare(uep, ureq); - else - ret = uep->handler->try_run(uep, ureq); - } - usbhsg_unlock(lock, &flags); - /******************** spin unlock ******************/ - - return ret; + req->length); } static void usbhsg_queue_pop(struct usbhsg_uep *uep, @@ -239,289 +154,91 @@ static void usbhsg_queue_pop(struct usbhsg_uep *uep, struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); struct device *dev = usbhsg_gpriv_to_dev(gpriv); - /* - ********* assume under spin lock ********* - */ - - /* - * CAUTION [*request complete*] - * - * There is a possibility not to be called in correct order - * if "complete" is called without spinlock. - * - * So, this function assume it is under spinlock, - * and call usb_request :: complete. - * - * But this "complete" will push next usb_request. - * It mean "usb_ep_ops :: queue" which is using spinlock is called - * under spinlock. - * - * To avoid dead-lock, this driver is using usbhsg_trylock. - * CAUTION [*endpoint queue*] - * CAUTION [*queue handler*] - */ - dev_dbg(dev, "pipe %d : queue pop\n", usbhs_pipe_number(pipe)); - list_del_init(&ureq->node); - ureq->req.status = status; ureq->req.complete(&uep->ep, &ureq->req); - - /* more request ? */ - if (0 == status) - usbhsg_queue_prepare(uep); } -/* - * irq enable/disable function - */ -#define usbhsg_irq_callback_ctrl(uep, status, enable) \ - ({ \ - struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); \ - struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); \ - struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); \ - struct usbhs_mod *mod = usbhs_mod_get_current(priv); \ - if (!mod) \ - return; \ - if (enable) \ - mod->irq_##status |= (1 << usbhs_pipe_number(pipe)); \ - else \ - mod->irq_##status &= ~(1 << usbhs_pipe_number(pipe)); \ - usbhs_irq_callback_update(priv, mod); \ - }) - -static void usbhsg_irq_empty_ctrl(struct usbhsg_uep *uep, int enable) +static void usbhsg_queue_done(struct usbhs_pkt *pkt) { - usbhsg_irq_callback_ctrl(uep, bempsts, enable); -} + struct usbhs_pipe *pipe = pkt->pipe; + struct usbhsg_uep *uep = usbhsg_pipe_to_uep(pipe); + struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt); -static void usbhsg_irq_ready_ctrl(struct usbhsg_uep *uep, int enable) -{ - usbhsg_irq_callback_ctrl(uep, brdysts, enable); -} - -/* - * handler function - */ -static int usbhsg_try_run_ctrl_stage_end(struct usbhsg_uep *uep, - struct usbhsg_request *ureq) -{ - struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); - - /* - ********* assume under spin lock ********* - */ + ureq->req.actual = pkt->actual; - usbhs_dcp_control_transfer_done(pipe); usbhsg_queue_pop(uep, ureq, 0); - - return 0; } -static int usbhsg_try_run_send_packet(struct usbhsg_uep *uep, - struct usbhsg_request *ureq) +/* + * dma map/unmap + */ +static int usbhsg_dma_map(struct device *dev, + struct usbhs_pkt *pkt, + enum dma_data_direction dir) { - struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); + struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt); struct usb_request *req = &ureq->req; - struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); - struct device *dev = usbhsg_gpriv_to_dev(gpriv); - void *buf; - int remainder, send; - int is_done = 0; - int enable; - int maxp; - /* - ********* assume under spin lock ********* - */ - - maxp = usbhs_pipe_get_maxpacket(pipe); - buf = req->buf + req->actual; - remainder = req->length - req->actual; - - send = usbhs_fifo_write(pipe, buf, remainder); - - /* - * send < 0 : pipe busy - * send = 0 : send zero packet - * send > 0 : send data - * - * send <= max_packet - */ - if (send > 0) - req->actual += send; - - /* send all packet ? */ - if (send < remainder) - is_done = 0; /* there are remainder data */ - else if (send < maxp) - is_done = 1; /* short packet */ - else - is_done = !req->zero; /* send zero packet ? */ - - dev_dbg(dev, " send %d (%d/ %d/ %d/ %d)\n", - usbhs_pipe_number(pipe), - remainder, send, is_done, req->zero); - - /* - * enable interrupt and send again in irq handler - * if it still have remainder data which should be sent. - */ - enable = !is_done; - uep->handler->irq_mask(uep, enable); - - /* - * usbhs_fifo_enable execute - * - after callback_update, - * - before queue_pop / stage_end - */ - usbhs_fifo_enable(pipe); - - /* - * all data were sent ? - */ - if (is_done) { - /* it care below call in - "function mode" */ - if (usbhsg_is_dcp(uep)) - usbhs_dcp_control_transfer_done(pipe); - - usbhsg_queue_pop(uep, ureq, 0); + if (pkt->dma != DMA_ADDR_INVALID) { + dev_err(dev, "dma is already mapped\n"); + return -EIO; } - return 0; -} - -static int usbhsg_prepare_send_packet(struct usbhsg_uep *uep, - struct usbhsg_request *ureq) -{ - struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); - - /* - ********* assume under spin lock ********* - */ + if (req->dma == DMA_ADDR_INVALID) { + pkt->dma = dma_map_single(dev, pkt->buf, pkt->length, dir); + } else { + dma_sync_single_for_device(dev, req->dma, req->length, dir); + pkt->dma = req->dma; + } - usbhs_fifo_prepare_write(pipe); - usbhsg_try_run_send_packet(uep, ureq); + if (dma_mapping_error(dev, pkt->dma)) { + dev_err(dev, "dma mapping error %x\n", pkt->dma); + return -EIO; + } return 0; } -static int usbhsg_try_run_receive_packet(struct usbhsg_uep *uep, - struct usbhsg_request *ureq) +static int usbhsg_dma_unmap(struct device *dev, + struct usbhs_pkt *pkt, + enum dma_data_direction dir) { - struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); + struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt); struct usb_request *req = &ureq->req; - struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); - struct device *dev = usbhsg_gpriv_to_dev(gpriv); - void *buf; - int maxp; - int remainder, recv; - int is_done = 0; - - /* - ********* assume under spin lock ********* - */ - - maxp = usbhs_pipe_get_maxpacket(pipe); - buf = req->buf + req->actual; - remainder = req->length - req->actual; - - recv = usbhs_fifo_read(pipe, buf, remainder); - /* - * recv < 0 : pipe busy - * recv >= 0 : receive data - * - * recv <= max_packet - */ - if (recv < 0) - return -EBUSY; - - /* update parameters */ - req->actual += recv; - - if ((recv == remainder) || /* receive all data */ - (recv < maxp)) /* short packet */ - is_done = 1; - dev_dbg(dev, " recv %d (%d/ %d/ %d/ %d)\n", - usbhs_pipe_number(pipe), - remainder, recv, is_done, req->zero); + if (pkt->dma == DMA_ADDR_INVALID) { + dev_err(dev, "dma is not mapped\n"); + return -EIO; + } - /* read all data ? */ - if (is_done) { - int disable = 0; + if (req->dma == DMA_ADDR_INVALID) + dma_unmap_single(dev, pkt->dma, pkt->length, dir); + else + dma_sync_single_for_cpu(dev, req->dma, req->length, dir); - uep->handler->irq_mask(uep, disable); - usbhs_fifo_disable(pipe); - usbhsg_queue_pop(uep, ureq, 0); - } + pkt->dma = DMA_ADDR_INVALID; return 0; } -static int usbhsg_prepare_receive_packet(struct usbhsg_uep *uep, - struct usbhsg_request *ureq) +static int usbhsg_dma_map_ctrl(struct usbhs_pkt *pkt, int map) { - struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); - int enable = 1; - int ret; - - /* - ********* assume under spin lock ********* - */ - - ret = usbhs_fifo_prepare_read(pipe); - if (ret < 0) - return ret; + struct usbhs_pipe *pipe = pkt->pipe; + struct usbhsg_uep *uep = usbhsg_pipe_to_uep(pipe); + struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); + struct device *dev = usbhsg_gpriv_to_dev(gpriv); + enum dma_data_direction dir; - /* - * data will be read in interrupt handler - */ - uep->handler->irq_mask(uep, enable); + dir = usbhs_pipe_is_dir_in(pipe) ? DMA_FROM_DEVICE : DMA_TO_DEVICE; - return ret; + if (map) + return usbhsg_dma_map(dev, pkt, dir); + else + return usbhsg_dma_unmap(dev, pkt, dir); } -static struct usbhsg_pipe_handle usbhsg_handler_send_by_empty = { - .prepare = usbhsg_prepare_send_packet, - .try_run = usbhsg_try_run_send_packet, - .irq_mask = usbhsg_irq_empty_ctrl, -}; - -static struct usbhsg_pipe_handle usbhsg_handler_send_by_ready = { - .prepare = usbhsg_prepare_send_packet, - .try_run = usbhsg_try_run_send_packet, - .irq_mask = usbhsg_irq_ready_ctrl, -}; - -static struct usbhsg_pipe_handle usbhsg_handler_recv_by_ready = { - .prepare = usbhsg_prepare_receive_packet, - .try_run = usbhsg_try_run_receive_packet, - .irq_mask = usbhsg_irq_ready_ctrl, -}; - -static struct usbhsg_pipe_handle usbhsg_handler_ctrl_stage_end = { - .prepare = usbhsg_try_run_ctrl_stage_end, - .try_run = usbhsg_try_run_ctrl_stage_end, -}; - -/* - * DCP pipe can NOT use "ready interrupt" for "send" - * it should use "empty" interrupt. - * see - * "Operation" - "Interrupt Function" - "BRDY Interrupt" - * - * on the other hand, normal pipe can use "ready interrupt" for "send" - * even though it is single/double buffer - */ -#define usbhsg_handler_send_ctrl usbhsg_handler_send_by_empty -#define usbhsg_handler_recv_ctrl usbhsg_handler_recv_by_ready - -#define usbhsg_handler_send_packet usbhsg_handler_send_by_ready -#define usbhsg_handler_recv_packet usbhsg_handler_recv_by_ready - /* * USB_TYPE_STANDARD / clear feature functions */ @@ -546,15 +263,13 @@ static int usbhsg_recip_handler_std_clear_endpoint(struct usbhs_priv *priv, struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); if (!usbhsg_status_has(gpriv, USBHSG_STATUS_WEDGE)) { - usbhs_fifo_disable(pipe); + usbhs_pipe_disable(pipe); usbhs_pipe_clear_sequence(pipe); - usbhs_fifo_enable(pipe); + usbhs_pipe_enable(pipe); } usbhsg_recip_handler_std_control_done(priv, uep, ctrl); - usbhsg_queue_prepare(uep); - return 0; } @@ -575,6 +290,7 @@ static int usbhsg_recip_run_handle(struct usbhs_priv *priv, struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); struct device *dev = usbhsg_gpriv_to_dev(gpriv); struct usbhsg_uep *uep; + struct usbhs_pipe *pipe; int recip = ctrl->bRequestType & USB_RECIP_MASK; int nth = le16_to_cpu(ctrl->wIndex) & USB_ENDPOINT_NUMBER_MASK; int ret; @@ -583,9 +299,11 @@ static int usbhsg_recip_run_handle(struct usbhs_priv *priv, char *msg; uep = usbhsg_gpriv_to_nth_uep(gpriv, nth); - if (!usbhsg_uep_to_pipe(uep)) { + pipe = usbhsg_uep_to_pipe(uep); + if (!pipe) { dev_err(dev, "wrong recip request\n"); - return -EINVAL; + ret = -EINVAL; + goto usbhsg_recip_run_handle_end; } switch (recip) { @@ -608,10 +326,20 @@ static int usbhsg_recip_run_handle(struct usbhs_priv *priv, } if (func) { + unsigned long flags; + dev_dbg(dev, "%s (pipe %d :%s)\n", handler->name, nth, msg); + + /******************** spin lock ********************/ + usbhs_lock(priv, flags); ret = func(priv, uep, ctrl); + usbhs_unlock(priv, flags); + /******************** spin unlock ******************/ } +usbhsg_recip_run_handle_end: + usbhs_pkt_start(pipe); + return ret; } @@ -660,13 +388,13 @@ static int usbhsg_irq_ctrl_stage(struct usbhs_priv *priv, switch (stage) { case READ_DATA_STAGE: - dcp->handler = &usbhsg_handler_send_ctrl; + dcp->handler = &usbhs_fifo_pio_push_handler; break; case WRITE_DATA_STAGE: - dcp->handler = &usbhsg_handler_recv_ctrl; + dcp->handler = &usbhs_fifo_pio_pop_handler; break; case NODATA_STATUS_STAGE: - dcp->handler = &usbhsg_handler_ctrl_stage_end; + dcp->handler = &usbhs_ctrl_stage_end_handler; break; default: return ret; @@ -695,128 +423,27 @@ static int usbhsg_irq_ctrl_stage(struct usbhs_priv *priv, ret = gpriv->driver->setup(&gpriv->gadget, &ctrl); if (ret < 0) - usbhs_fifo_stall(pipe); + usbhs_pipe_stall(pipe); return ret; } -static int usbhsg_irq_empty(struct usbhs_priv *priv, - struct usbhs_irq_state *irq_state) -{ - struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); - struct usbhsg_uep *uep; - struct usbhs_pipe *pipe; - struct device *dev = usbhsg_gpriv_to_dev(gpriv); - int i, ret; - - if (!irq_state->bempsts) { - dev_err(dev, "debug %s !!\n", __func__); - return -EIO; - } - - dev_dbg(dev, "irq empty [0x%04x]\n", irq_state->bempsts); - - /* - * search interrupted "pipe" - * not "uep". - */ - usbhs_for_each_pipe_with_dcp(pipe, priv, i) { - if (!(irq_state->bempsts & (1 << i))) - continue; - - uep = usbhsg_pipe_to_uep(pipe); - ret = usbhsg_queue_handle(uep); - if (ret < 0) - dev_err(dev, "send error %d : %d\n", i, ret); - } - - return 0; -} - -static int usbhsg_irq_ready(struct usbhs_priv *priv, - struct usbhs_irq_state *irq_state) -{ - struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); - struct usbhsg_uep *uep; - struct usbhs_pipe *pipe; - struct device *dev = usbhsg_gpriv_to_dev(gpriv); - int i, ret; - - if (!irq_state->brdysts) { - dev_err(dev, "debug %s !!\n", __func__); - return -EIO; - } - - dev_dbg(dev, "irq ready [0x%04x]\n", irq_state->brdysts); - - /* - * search interrupted "pipe" - * not "uep". - */ - usbhs_for_each_pipe_with_dcp(pipe, priv, i) { - if (!(irq_state->brdysts & (1 << i))) - continue; - - uep = usbhsg_pipe_to_uep(pipe); - ret = usbhsg_queue_handle(uep); - if (ret < 0) - dev_err(dev, "receive error %d : %d\n", i, ret); - } - - return 0; -} - /* * * usb_dcp_ops * */ -static int usbhsg_dcp_enable(struct usbhsg_uep *uep) -{ - struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); - struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); - struct usbhs_pipe *pipe; - - /* - ********* assume under spin lock ********* - */ - - pipe = usbhs_dcp_malloc(priv); - if (!pipe) - return -EIO; - - uep->pipe = pipe; - uep->pipe->mod_private = uep; - INIT_LIST_HEAD(&uep->list); - - return 0; -} - -#define usbhsg_dcp_disable usbhsg_pipe_disable static int usbhsg_pipe_disable(struct usbhsg_uep *uep) { struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); - struct usbhsg_request *ureq; - int disable = 0; - - /* - ********* assume under spin lock ********* - */ + struct usbhs_pkt *pkt; - usbhs_fifo_disable(pipe); - - /* - * disable pipe irq - */ - usbhsg_irq_empty_ctrl(uep, disable); - usbhsg_irq_ready_ctrl(uep, disable); + usbhs_pipe_disable(pipe); while (1) { - ureq = usbhsg_queue_get(uep); - if (!ureq) + pkt = usbhs_pkt_pop(pipe, NULL); + if (!pkt) break; - - usbhsg_queue_pop(uep, ureq, -ECONNRESET); } return 0; @@ -843,57 +470,44 @@ static int usbhsg_ep_enable(struct usb_ep *ep, struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); struct usbhs_pipe *pipe; - spinlock_t *lock; - unsigned long flags; int ret = -EIO; /* * if it already have pipe, * nothing to do */ - if (uep->pipe) + if (uep->pipe) { + usbhs_pipe_clear(uep->pipe); + usbhs_pipe_clear_sequence(uep->pipe); return 0; - - /******************** spin lock ********************/ - lock = usbhsg_trylock(gpriv, &flags); + } pipe = usbhs_pipe_malloc(priv, desc); if (pipe) { uep->pipe = pipe; pipe->mod_private = uep; - INIT_LIST_HEAD(&uep->list); + /* + * usbhs_fifo_dma_push/pop_handler try to + * use dmaengine if possible. + * It will use pio handler if impossible. + */ if (usb_endpoint_dir_in(desc)) - uep->handler = &usbhsg_handler_send_packet; + uep->handler = &usbhs_fifo_dma_push_handler; else - uep->handler = &usbhsg_handler_recv_packet; + uep->handler = &usbhs_fifo_dma_pop_handler; ret = 0; } - usbhsg_unlock(lock, &flags); - /******************** spin unlock ******************/ - return ret; } static int usbhsg_ep_disable(struct usb_ep *ep) { struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); - struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); - spinlock_t *lock; - unsigned long flags; - int ret; - - /******************** spin lock ********************/ - lock = usbhsg_trylock(gpriv, &flags); - ret = usbhsg_pipe_disable(uep); - - usbhsg_unlock(lock, &flags); - /******************** spin unlock ******************/ - - return ret; + return usbhsg_pipe_disable(uep); } static struct usb_request *usbhsg_ep_alloc_request(struct usb_ep *ep, @@ -905,7 +519,10 @@ static struct usb_request *usbhsg_ep_alloc_request(struct usb_ep *ep, if (!ureq) return NULL; - INIT_LIST_HEAD(&ureq->node); + usbhs_pkt_init(usbhsg_ureq_to_pkt(ureq)); + + ureq->req.dma = DMA_ADDR_INVALID; + return &ureq->req; } @@ -914,7 +531,7 @@ static void usbhsg_ep_free_request(struct usb_ep *ep, { struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); - WARN_ON(!list_empty(&ureq->node)); + WARN_ON(!list_empty(&ureq->pkt.node)); kfree(ureq); } @@ -925,69 +542,27 @@ static int usbhsg_ep_queue(struct usb_ep *ep, struct usb_request *req, struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); - spinlock_t *lock; - unsigned long flags; - int ret = 0; - - /* - * CAUTION [*endpoint queue*] - * - * This function will be called from usb_request :: complete - * or usb driver timing. - * If this function is called from usb_request :: complete, - * it is already under spinlock on this driver. - * but it is called frm usb driver, this function should call spinlock. - * - * This function is using usbshg_trylock to solve this issue. - * if "is_locked" is 1, this mean this function lock it. - * but if it is 0, this mean it is already under spin lock. - * see also - * CAUTION [*queue handler*] - * CAUTION [*request complete*] - */ - - /******************** spin lock ********************/ - lock = usbhsg_trylock(gpriv, &flags); /* param check */ if (usbhsg_is_not_connected(gpriv) || unlikely(!gpriv->driver) || unlikely(!pipe)) - ret = -ESHUTDOWN; - else - usbhsg_queue_push(uep, ureq); - - usbhsg_unlock(lock, &flags); - /******************** spin unlock ******************/ + return -ESHUTDOWN; - usbhsg_queue_prepare(uep); + usbhsg_queue_push(uep, ureq); - return ret; + return 0; } static int usbhsg_ep_dequeue(struct usb_ep *ep, struct usb_request *req) { struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); struct usbhsg_request *ureq = usbhsg_req_to_ureq(req); - struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); - spinlock_t *lock; - unsigned long flags; - - /* - * see - * CAUTION [*queue handler*] - * CAUTION [*endpoint queue*] - * CAUTION [*request complete*] - */ - - /******************** spin lock ********************/ - lock = usbhsg_trylock(gpriv, &flags); + struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); + usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq)); usbhsg_queue_pop(uep, ureq, -ECONNRESET); - usbhsg_unlock(lock, &flags); - /******************** spin unlock ******************/ - return 0; } @@ -996,42 +571,32 @@ static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, int halt, int wedge) struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep); struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep); + struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); struct device *dev = usbhsg_gpriv_to_dev(gpriv); - spinlock_t *lock; unsigned long flags; - int ret = -EAGAIN; - /* - * see - * CAUTION [*queue handler*] - * CAUTION [*endpoint queue*] - * CAUTION [*request complete*] - */ + usbhsg_pipe_disable(uep); - /******************** spin lock ********************/ - lock = usbhsg_trylock(gpriv, &flags); - if (!usbhsg_queue_get(uep)) { + dev_dbg(dev, "set halt %d (pipe %d)\n", + halt, usbhs_pipe_number(pipe)); - dev_dbg(dev, "set halt %d (pipe %d)\n", - halt, usbhs_pipe_number(pipe)); - - if (halt) - usbhs_fifo_stall(pipe); - else - usbhs_fifo_disable(pipe); + /******************** spin lock ********************/ + usbhs_lock(priv, flags); - if (halt && wedge) - usbhsg_status_set(gpriv, USBHSG_STATUS_WEDGE); - else - usbhsg_status_clr(gpriv, USBHSG_STATUS_WEDGE); + if (halt) + usbhs_pipe_stall(pipe); + else + usbhs_pipe_disable(pipe); - ret = 0; - } + if (halt && wedge) + usbhsg_status_set(gpriv, USBHSG_STATUS_WEDGE); + else + usbhsg_status_clr(gpriv, USBHSG_STATUS_WEDGE); - usbhsg_unlock(lock, &flags); + usbhs_unlock(priv, flags); /******************** spin unlock ******************/ - return ret; + return 0; } static int usbhsg_ep_set_halt(struct usb_ep *ep, int value) @@ -1067,28 +632,40 @@ static int usbhsg_try_start(struct usbhs_priv *priv, u32 status) struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); struct usbhs_mod *mod = usbhs_mod_get_current(priv); struct device *dev = usbhs_priv_to_dev(priv); - spinlock_t *lock; unsigned long flags; + int ret = 0; /******************** spin lock ********************/ - lock = usbhsg_trylock(gpriv, &flags); + usbhs_lock(priv, flags); - /* - * enable interrupt and systems if ready - */ usbhsg_status_set(gpriv, status); if (!(usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) && usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD))) - goto usbhsg_try_start_unlock; + ret = -1; /* not ready */ + + usbhs_unlock(priv, flags); + /******************** spin unlock ********************/ + + if (ret < 0) + return 0; /* not ready is not error */ + /* + * enable interrupt and systems if ready + */ dev_dbg(dev, "start gadget\n"); /* * pipe initialize and enable DCP */ - usbhs_pipe_init(priv); + usbhs_pipe_init(priv, + usbhsg_queue_done, + usbhsg_dma_map_ctrl); + usbhs_fifo_init(priv); usbhsg_uep_init(gpriv); - usbhsg_dcp_enable(dcp); + + /* dcp init */ + dcp->pipe = usbhs_dcp_malloc(priv); + dcp->pipe->mod_private = dcp; /* * system config enble @@ -1105,16 +682,8 @@ static int usbhsg_try_start(struct usbhs_priv *priv, u32 status) */ mod->irq_dev_state = usbhsg_irq_dev_state; mod->irq_ctrl_stage = usbhsg_irq_ctrl_stage; - mod->irq_empty = usbhsg_irq_empty; - mod->irq_ready = usbhsg_irq_ready; - mod->irq_bempsts = 0; - mod->irq_brdysts = 0; usbhs_irq_callback_update(priv, mod); -usbhsg_try_start_unlock: - usbhsg_unlock(lock, &flags); - /******************** spin unlock ********************/ - return 0; } @@ -1124,31 +693,33 @@ static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status) struct usbhs_mod *mod = usbhs_mod_get_current(priv); struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv); struct device *dev = usbhs_priv_to_dev(priv); - spinlock_t *lock; unsigned long flags; + int ret = 0; /******************** spin lock ********************/ - lock = usbhsg_trylock(gpriv, &flags); + usbhs_lock(priv, flags); - /* - * disable interrupt and systems if 1st try - */ usbhsg_status_clr(gpriv, status); if (!usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) && !usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD)) - goto usbhsg_try_stop_unlock; + ret = -1; /* already done */ + + usbhs_unlock(priv, flags); + /******************** spin unlock ********************/ + + if (ret < 0) + return 0; /* already done is not error */ + + /* + * disable interrupt and systems if 1st try + */ + usbhs_fifo_quit(priv); /* disable all irq */ mod->irq_dev_state = NULL; mod->irq_ctrl_stage = NULL; - mod->irq_empty = NULL; - mod->irq_ready = NULL; - mod->irq_bempsts = 0; - mod->irq_brdysts = 0; usbhs_irq_callback_update(priv, mod); - usbhsg_dcp_disable(dcp); - gpriv->gadget.speed = USB_SPEED_UNKNOWN; /* disable sys */ @@ -1156,8 +727,7 @@ static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status) usbhs_sys_function_ctrl(priv, 0); usbhs_sys_usb_ctrl(priv, 0); - usbhsg_unlock(lock, &flags); - /******************** spin unlock ********************/ + usbhsg_pipe_disable(dcp); if (gpriv->driver && gpriv->driver->disconnect) @@ -1166,11 +736,6 @@ static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status) dev_dbg(dev, "stop gadget\n"); return 0; - -usbhsg_try_stop_unlock: - usbhsg_unlock(lock, &flags); - - return 0; } /* @@ -1178,11 +743,10 @@ usbhsg_try_stop_unlock: * linux usb function * */ -struct usbhsg_gpriv *the_controller; -int usb_gadget_probe_driver(struct usb_gadget_driver *driver, +static int usbhsg_gadget_start(struct usb_gadget_driver *driver, int (*bind)(struct usb_gadget *)) { - struct usbhsg_gpriv *gpriv = the_controller; + struct usbhsg_gpriv *gpriv; struct usbhs_priv *priv; struct device *dev; int ret; @@ -1192,10 +756,17 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, !driver->setup || driver->speed != USB_SPEED_HIGH) return -EINVAL; - if (!gpriv) - return -ENODEV; - if (gpriv->driver) - return -EBUSY; + + /* + * find unused controller + */ + usbhsg_for_each_controller(gpriv) { + if (!gpriv->driver) + goto find_unused_controller; + } + return -ENODEV; + +find_unused_controller: dev = usbhsg_gpriv_to_dev(gpriv); priv = usbhsg_gpriv_to_priv(gpriv); @@ -1229,22 +800,28 @@ add_fail: return ret; } -EXPORT_SYMBOL(usb_gadget_probe_driver); -int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) +static int usbhsg_gadget_stop(struct usb_gadget_driver *driver) { - struct usbhsg_gpriv *gpriv = the_controller; + struct usbhsg_gpriv *gpriv; struct usbhs_priv *priv; - struct device *dev = usbhsg_gpriv_to_dev(gpriv); - - if (!gpriv) - return -ENODEV; + struct device *dev; if (!driver || - !driver->unbind || - driver != gpriv->driver) + !driver->unbind) return -EINVAL; + /* + * find controller + */ + usbhsg_for_each_controller(gpriv) { + if (gpriv->driver == driver) + goto find_matching_controller; + } + return -ENODEV; + +find_matching_controller: + dev = usbhsg_gpriv_to_dev(gpriv); priv = usbhsg_gpriv_to_priv(gpriv); @@ -1260,7 +837,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) return 0; } -EXPORT_SYMBOL(usb_gadget_unregister_driver); /* * usb gadget ops @@ -1275,6 +851,8 @@ static int usbhsg_get_frame(struct usb_gadget *gadget) static struct usb_gadget_ops usbhsg_gadget_ops = { .get_frame = usbhsg_get_frame, + .start = usbhsg_gadget_start, + .stop = usbhsg_gadget_stop, }; static int usbhsg_start(struct usbhs_priv *priv) @@ -1294,6 +872,7 @@ int __devinit usbhs_mod_gadget_probe(struct usbhs_priv *priv) struct device *dev = usbhs_priv_to_dev(priv); int pipe_size = usbhs_get_dparam(priv, pipe_size); int i; + int ret; gpriv = kzalloc(sizeof(struct usbhsg_gpriv), GFP_KERNEL); if (!gpriv) { @@ -1304,6 +883,7 @@ int __devinit usbhs_mod_gadget_probe(struct usbhs_priv *priv) uep = kzalloc(sizeof(struct usbhsg_uep) * pipe_size, GFP_KERNEL); if (!uep) { dev_err(dev, "Could not allocate ep\n"); + ret = -ENOMEM; goto usbhs_mod_gadget_probe_err_gpriv; } @@ -1350,7 +930,6 @@ int __devinit usbhs_mod_gadget_probe(struct usbhs_priv *priv) uep->ep.name = uep->ep_name; uep->ep.ops = &usbhsg_ep_ops; INIT_LIST_HEAD(&uep->ep.ep_list); - INIT_LIST_HEAD(&uep->list); /* init DCP */ if (usbhsg_is_dcp(uep)) { @@ -1364,22 +943,33 @@ int __devinit usbhs_mod_gadget_probe(struct usbhs_priv *priv) } } - the_controller = gpriv; + usbhsg_controller_register(gpriv); + + ret = usb_add_gadget_udc(dev, &gpriv->gadget); + if (ret) + goto err_add_udc; + dev_info(dev, "gadget probed\n"); return 0; +err_add_udc: + kfree(gpriv->uep); usbhs_mod_gadget_probe_err_gpriv: kfree(gpriv); - return -ENOMEM; + return ret; } void __devexit usbhs_mod_gadget_remove(struct usbhs_priv *priv) { struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); + usb_del_gadget_udc(&gpriv->gadget); + + usbhsg_controller_unregister(gpriv); + kfree(gpriv->uep); kfree(gpriv); } diff --git a/drivers/usb/renesas_usbhs/pipe.c b/drivers/usb/renesas_usbhs/pipe.c index bc4521c..1b14cae 100644 --- a/drivers/usb/renesas_usbhs/pipe.c +++ b/drivers/usb/renesas_usbhs/pipe.c @@ -15,7 +15,6 @@ * */ #include <linux/delay.h> -#include <linux/io.h> #include <linux/slab.h> #include "./common.h" #include "./pipe.h" @@ -23,13 +22,8 @@ /* * macros */ -#define usbhsp_priv_to_pipeinfo(pr) (&(pr)->pipe_info) -#define usbhsp_pipe_to_priv(p) ((p)->priv) - #define usbhsp_addr_offset(p) ((usbhs_pipe_number(p) - 1) * 2) -#define usbhsp_is_dcp(p) ((p)->priv->pipe_info.pipe == (p)) - #define usbhsp_flags_set(p, f) ((p)->flags |= USBHS_PIPE_FLAGS_##f) #define usbhsp_flags_clr(p, f) ((p)->flags &= ~USBHS_PIPE_FLAGS_##f) #define usbhsp_flags_has(p, f) ((p)->flags & USBHS_PIPE_FLAGS_##f) @@ -77,10 +71,10 @@ void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req) */ static void usbhsp_pipectrl_set(struct usbhs_pipe *pipe, u16 mask, u16 val) { - struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe); + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); int offset = usbhsp_addr_offset(pipe); - if (usbhsp_is_dcp(pipe)) + if (usbhs_pipe_is_dcp(pipe)) usbhs_bset(priv, DCPCTR, mask, val); else usbhs_bset(priv, PIPEnCTR + offset, mask, val); @@ -88,10 +82,10 @@ static void usbhsp_pipectrl_set(struct usbhs_pipe *pipe, u16 mask, u16 val) static u16 usbhsp_pipectrl_get(struct usbhs_pipe *pipe) { - struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe); + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); int offset = usbhsp_addr_offset(pipe); - if (usbhsp_is_dcp(pipe)) + if (usbhs_pipe_is_dcp(pipe)) return usbhs_read(priv, DCPCTR); else return usbhs_read(priv, PIPEnCTR + offset); @@ -104,9 +98,9 @@ static void __usbhsp_pipe_xxx_set(struct usbhs_pipe *pipe, u16 dcp_reg, u16 pipe_reg, u16 mask, u16 val) { - struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe); + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); - if (usbhsp_is_dcp(pipe)) + if (usbhs_pipe_is_dcp(pipe)) usbhs_bset(priv, dcp_reg, mask, val); else usbhs_bset(priv, pipe_reg, mask, val); @@ -115,9 +109,9 @@ static void __usbhsp_pipe_xxx_set(struct usbhs_pipe *pipe, static u16 __usbhsp_pipe_xxx_get(struct usbhs_pipe *pipe, u16 dcp_reg, u16 pipe_reg) { - struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe); + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); - if (usbhsp_is_dcp(pipe)) + if (usbhs_pipe_is_dcp(pipe)) return usbhs_read(priv, dcp_reg); else return usbhs_read(priv, pipe_reg); @@ -136,7 +130,7 @@ static void usbhsp_pipe_cfg_set(struct usbhs_pipe *pipe, u16 mask, u16 val) */ static void usbhsp_pipe_buf_set(struct usbhs_pipe *pipe, u16 mask, u16 val) { - if (usbhsp_is_dcp(pipe)) + if (usbhs_pipe_is_dcp(pipe)) return; __usbhsp_pipe_xxx_set(pipe, 0, PIPEBUF, mask, val); @@ -160,7 +154,7 @@ static u16 usbhsp_pipe_maxp_get(struct usbhs_pipe *pipe) */ static void usbhsp_pipe_select(struct usbhs_pipe *pipe) { - struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe); + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); /* * On pipe, this is necessary before @@ -182,7 +176,7 @@ static void usbhsp_pipe_select(struct usbhs_pipe *pipe) static int usbhsp_pipe_barrier(struct usbhs_pipe *pipe) { - struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe); + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); int timeout = 1024; u16 val; @@ -205,7 +199,7 @@ static int usbhsp_pipe_barrier(struct usbhs_pipe *pipe) * - "Pipe Control Registers Switching Procedure" */ usbhs_write(priv, CFIFOSEL, 0); - usbhs_fifo_disable(pipe); + usbhs_pipe_disable(pipe); do { val = usbhsp_pipectrl_get(pipe); @@ -220,7 +214,7 @@ static int usbhsp_pipe_barrier(struct usbhs_pipe *pipe) return -EBUSY; } -static int usbhsp_pipe_is_accessible(struct usbhs_pipe *pipe) +int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe) { u16 val; @@ -253,7 +247,7 @@ static void __usbhsp_pid_try_nak_if_stall(struct usbhs_pipe *pipe) } } -void usbhs_fifo_disable(struct usbhs_pipe *pipe) +void usbhs_pipe_disable(struct usbhs_pipe *pipe) { int timeout = 1024; u16 val; @@ -273,7 +267,7 @@ void usbhs_fifo_disable(struct usbhs_pipe *pipe) } while (timeout--); } -void usbhs_fifo_enable(struct usbhs_pipe *pipe) +void usbhs_pipe_enable(struct usbhs_pipe *pipe) { /* see "Pipe n Control Register" - "PID" */ __usbhsp_pid_try_nak_if_stall(pipe); @@ -281,7 +275,7 @@ void usbhs_fifo_enable(struct usbhs_pipe *pipe) usbhsp_pipectrl_set(pipe, PID_MASK, PID_BUF); } -void usbhs_fifo_stall(struct usbhs_pipe *pipe) +void usbhs_pipe_stall(struct usbhs_pipe *pipe) { u16 pid = usbhsp_pipectrl_get(pipe); @@ -302,191 +296,6 @@ void usbhs_fifo_stall(struct usbhs_pipe *pipe) } /* - * CFIFO ctrl - */ -void usbhs_fifo_send_terminator(struct usbhs_pipe *pipe) -{ - struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe); - - usbhs_bset(priv, CFIFOCTR, BVAL, BVAL); -} - -static void usbhsp_fifo_clear(struct usbhs_pipe *pipe) -{ - struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe); - - usbhs_write(priv, CFIFOCTR, BCLR); -} - -static int usbhsp_fifo_barrier(struct usbhs_priv *priv) -{ - int timeout = 1024; - - do { - /* The FIFO port is accessible */ - if (usbhs_read(priv, CFIFOCTR) & FRDY) - return 0; - - udelay(10); - } while (timeout--); - - return -EBUSY; -} - -static int usbhsp_fifo_rcv_len(struct usbhs_priv *priv) -{ - return usbhs_read(priv, CFIFOCTR) & DTLN_MASK; -} - -static int usbhsp_fifo_select(struct usbhs_pipe *pipe, int write) -{ - struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe); - struct device *dev = usbhs_priv_to_dev(priv); - int timeout = 1024; - u16 mask = ((1 << 5) | 0xF); /* mask of ISEL | CURPIPE */ - u16 base = usbhs_pipe_number(pipe); /* CURPIPE */ - - if (usbhsp_is_dcp(pipe)) - base |= (1 == write) << 5; /* ISEL */ - - /* "base" will be used below */ - usbhs_write(priv, CFIFOSEL, base | MBW_32); - - /* check ISEL and CURPIPE value */ - while (timeout--) { - if (base == (mask & usbhs_read(priv, CFIFOSEL))) - return 0; - udelay(10); - } - - dev_err(dev, "fifo select error\n"); - - return -EIO; -} - -int usbhs_fifo_prepare_write(struct usbhs_pipe *pipe) -{ - return usbhsp_fifo_select(pipe, 1); -} - -int usbhs_fifo_write(struct usbhs_pipe *pipe, u8 *buf, int len) -{ - struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe); - void __iomem *addr = priv->base + CFIFO; - int maxp = usbhs_pipe_get_maxpacket(pipe); - int total_len; - int i, ret; - - ret = usbhsp_pipe_is_accessible(pipe); - if (ret < 0) - return ret; - - ret = usbhsp_fifo_select(pipe, 1); - if (ret < 0) - return ret; - - ret = usbhsp_fifo_barrier(priv); - if (ret < 0) - return ret; - - len = min(len, maxp); - total_len = len; - - /* - * FIXME - * - * 32-bit access only - */ - if (len >= 4 && - !((unsigned long)buf & 0x03)) { - iowrite32_rep(addr, buf, len / 4); - len %= 4; - buf += total_len - len; - } - - /* the rest operation */ - for (i = 0; i < len; i++) - iowrite8(buf[i], addr + (0x03 - (i & 0x03))); - - if (total_len < maxp) - usbhs_fifo_send_terminator(pipe); - - return total_len; -} - -int usbhs_fifo_prepare_read(struct usbhs_pipe *pipe) -{ - int ret; - - /* - * select pipe and enable it to prepare packet receive - */ - ret = usbhsp_fifo_select(pipe, 0); - if (ret < 0) - return ret; - - usbhs_fifo_enable(pipe); - - return ret; -} - -int usbhs_fifo_read(struct usbhs_pipe *pipe, u8 *buf, int len) -{ - struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe); - void __iomem *addr = priv->base + CFIFO; - int rcv_len; - int i, ret; - int total_len; - u32 data = 0; - - ret = usbhsp_fifo_select(pipe, 0); - if (ret < 0) - return ret; - - ret = usbhsp_fifo_barrier(priv); - if (ret < 0) - return ret; - - rcv_len = usbhsp_fifo_rcv_len(priv); - - /* - * Buffer clear if Zero-Length packet - * - * see - * "Operation" - "FIFO Buffer Memory" - "FIFO Port Function" - */ - if (0 == rcv_len) { - usbhsp_fifo_clear(pipe); - return 0; - } - - len = min(rcv_len, len); - total_len = len; - - /* - * FIXME - * - * 32-bit access only - */ - if (len >= 4 && - !((unsigned long)buf & 0x03)) { - ioread32_rep(addr, buf, len / 4); - len %= 4; - buf += rcv_len - len; - } - - /* the rest operation */ - for (i = 0; i < len; i++) { - if (!(i & 0x03)) - data = ioread32(addr); - - buf[i] = (data >> ((i & 0x03) * 8)) & 0xff; - } - - return total_len; -} - -/* * pipe setup */ static int usbhsp_possible_double_buffer(struct usbhs_pipe *pipe) @@ -519,7 +328,7 @@ static u16 usbhsp_setup_pipecfg(struct usbhs_pipe *pipe, }; int is_double = usbhsp_possible_double_buffer(pipe); - if (usbhsp_is_dcp(pipe)) + if (usbhs_pipe_is_dcp(pipe)) return -EINVAL; /* @@ -550,12 +359,15 @@ static u16 usbhsp_setup_pipecfg(struct usbhs_pipe *pipe, /* DIR */ if (usb_endpoint_dir_in(desc)) - usbhsp_flags_set(pipe, IS_DIR_IN); + usbhsp_flags_set(pipe, IS_DIR_HOST); if ((is_host && usb_endpoint_dir_out(desc)) || (!is_host && usb_endpoint_dir_in(desc))) dir |= DIR_OUT; + if (!dir) + usbhsp_flags_set(pipe, IS_DIR_IN); + /* SHTNAK */ if (usbhsp_type_is(pipe, USB_ENDPOINT_XFER_BULK) && !dir) @@ -587,8 +399,8 @@ static u16 usbhsp_setup_pipebuff(struct usbhs_pipe *pipe, const struct usb_endpoint_descriptor *desc, int is_host) { - struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe); - struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv); + struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv); struct device *dev = usbhs_priv_to_dev(priv); int pipe_num = usbhs_pipe_number(pipe); int is_double = usbhsp_possible_double_buffer(pipe); @@ -666,7 +478,7 @@ static u16 usbhsp_setup_pipebuff(struct usbhs_pipe *pipe, */ int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe) { - u16 mask = usbhsp_is_dcp(pipe) ? DCP_MAXP_MASK : PIPE_MAXP_MASK; + u16 mask = usbhs_pipe_is_dcp(pipe) ? DCP_MAXP_MASK : PIPE_MAXP_MASK; usbhsp_pipe_select(pipe); @@ -678,11 +490,22 @@ int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe) return usbhsp_flags_has(pipe, IS_DIR_IN); } +int usbhs_pipe_is_dir_host(struct usbhs_pipe *pipe) +{ + return usbhsp_flags_has(pipe, IS_DIR_HOST); +} + void usbhs_pipe_clear_sequence(struct usbhs_pipe *pipe) { usbhsp_pipectrl_set(pipe, SQCLR, SQCLR); } +void usbhs_pipe_clear(struct usbhs_pipe *pipe) +{ + usbhsp_pipectrl_set(pipe, ACLRM, ACLRM); + usbhsp_pipectrl_set(pipe, ACLRM, 0); +} + static struct usbhs_pipe *usbhsp_get_pipe(struct usbhs_priv *priv, u32 type) { struct usbhs_pipe *pos, *pipe; @@ -714,12 +537,20 @@ static struct usbhs_pipe *usbhsp_get_pipe(struct usbhs_priv *priv, u32 type) return pipe; } -void usbhs_pipe_init(struct usbhs_priv *priv) +void usbhs_pipe_init(struct usbhs_priv *priv, + void (*done)(struct usbhs_pkt *pkt), + int (*dma_map_ctrl)(struct usbhs_pkt *pkt, int map)) { - struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv); + struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv); + struct device *dev = usbhs_priv_to_dev(priv); struct usbhs_pipe *pipe; int i; + if (!done) { + dev_err(dev, "no done function\n"); + return; + } + /* * FIXME * @@ -738,10 +569,16 @@ void usbhs_pipe_init(struct usbhs_priv *priv) info->bufnmb_last++; usbhsp_flags_init(pipe); + pipe->fifo = NULL; pipe->mod_private = NULL; + INIT_LIST_HEAD(&pipe->list); - usbhsp_fifo_clear(pipe); + /* pipe force init */ + usbhs_pipe_clear(pipe); } + + info->done = done; + info->dma_map_ctrl = dma_map_ctrl; } struct usbhs_pipe *usbhs_pipe_malloc(struct usbhs_priv *priv, @@ -761,7 +598,9 @@ struct usbhs_pipe *usbhs_pipe_malloc(struct usbhs_priv *priv, return NULL; } - usbhs_fifo_disable(pipe); + INIT_LIST_HEAD(&pipe->list); + + usbhs_pipe_disable(pipe); /* make sure pipe is not busy */ ret = usbhsp_pipe_barrier(pipe); @@ -774,11 +613,6 @@ struct usbhs_pipe *usbhs_pipe_malloc(struct usbhs_priv *priv, pipebuf = usbhsp_setup_pipebuff(pipe, desc, is_host); pipemaxp = usbhsp_setup_pipemaxp(pipe, desc, is_host); - /* buffer clear - * see PIPECFG :: BFRE */ - usbhsp_pipectrl_set(pipe, ACLRM, ACLRM); - usbhsp_pipectrl_set(pipe, ACLRM, 0); - usbhsp_pipe_select(pipe); usbhsp_pipe_cfg_set(pipe, 0xFFFF, pipecfg); usbhsp_pipe_buf_set(pipe, 0xFFFF, pipebuf); @@ -794,6 +628,18 @@ struct usbhs_pipe *usbhs_pipe_malloc(struct usbhs_priv *priv, return pipe; } +void usbhs_pipe_select_fifo(struct usbhs_pipe *pipe, struct usbhs_fifo *fifo) +{ + if (pipe->fifo) + pipe->fifo->pipe = NULL; + + pipe->fifo = fifo; + + if (fifo) + fifo->pipe = pipe; +} + + /* * dcp control */ @@ -813,25 +659,25 @@ struct usbhs_pipe *usbhs_dcp_malloc(struct usbhs_priv *priv) usbhsp_pipe_select(pipe); usbhs_pipe_clear_sequence(pipe); + INIT_LIST_HEAD(&pipe->list); return pipe; } void usbhs_dcp_control_transfer_done(struct usbhs_pipe *pipe) { - WARN_ON(!usbhsp_is_dcp(pipe)); + WARN_ON(!usbhs_pipe_is_dcp(pipe)); - usbhs_fifo_enable(pipe); + usbhs_pipe_enable(pipe); usbhsp_pipectrl_set(pipe, CCPL, CCPL); } - /* * pipe module function */ int usbhs_pipe_probe(struct usbhs_priv *priv) { - struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv); + struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv); struct usbhs_pipe *pipe; struct device *dev = usbhs_priv_to_dev(priv); u32 *pipe_type = usbhs_get_dparam(priv, pipe_type); @@ -868,7 +714,7 @@ int usbhs_pipe_probe(struct usbhs_priv *priv) void usbhs_pipe_remove(struct usbhs_priv *priv) { - struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv); + struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv); kfree(info->pipe); } diff --git a/drivers/usb/renesas_usbhs/pipe.h b/drivers/usb/renesas_usbhs/pipe.h index 1cca9b7..41534cb 100644 --- a/drivers/usb/renesas_usbhs/pipe.h +++ b/drivers/usb/renesas_usbhs/pipe.h @@ -18,6 +18,7 @@ #define RENESAS_USB_PIPE_H #include "./common.h" +#include "./fifo.h" /* * struct @@ -26,10 +27,13 @@ struct usbhs_pipe { u32 pipe_type; /* USB_ENDPOINT_XFER_xxx */ struct usbhs_priv *priv; + struct usbhs_fifo *fifo; + struct list_head list; u32 flags; #define USBHS_PIPE_FLAGS_IS_USED (1 << 0) #define USBHS_PIPE_FLAGS_IS_DIR_IN (1 << 1) +#define USBHS_PIPE_FLAGS_IS_DIR_HOST (1 << 2) void *mod_private; }; @@ -38,6 +42,9 @@ struct usbhs_pipe_info { struct usbhs_pipe *pipe; int size; /* array size of "pipe" */ int bufnmb_last; /* FIXME : driver needs good allocator */ + + void (*done)(struct usbhs_pkt *pkt); + int (*dma_map_ctrl)(struct usbhs_pkt *pkt, int map); }; /* @@ -55,25 +62,9 @@ struct usbhs_pipe_info { __usbhs_for_each_pipe(0, pos, &((priv)->pipe_info), i) /* - * pipe module probe / remove + * data */ -int usbhs_pipe_probe(struct usbhs_priv *priv); -void usbhs_pipe_remove(struct usbhs_priv *priv); - -/* - * cfifo - */ -int usbhs_fifo_write(struct usbhs_pipe *pipe, u8 *buf, int len); -int usbhs_fifo_read(struct usbhs_pipe *pipe, u8 *buf, int len); -int usbhs_fifo_prepare_write(struct usbhs_pipe *pipe); -int usbhs_fifo_prepare_read(struct usbhs_pipe *pipe); - -void usbhs_fifo_enable(struct usbhs_pipe *pipe); -void usbhs_fifo_disable(struct usbhs_pipe *pipe); -void usbhs_fifo_stall(struct usbhs_pipe *pipe); - -void usbhs_fifo_send_terminator(struct usbhs_pipe *pipe); - +#define usbhs_priv_to_pipeinfo(pr) (&(pr)->pipe_info) /* * usb request @@ -87,13 +78,27 @@ void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req); struct usbhs_pipe *usbhs_pipe_malloc(struct usbhs_priv *priv, const struct usb_endpoint_descriptor *desc); - +int usbhs_pipe_probe(struct usbhs_priv *priv); +void usbhs_pipe_remove(struct usbhs_priv *priv); int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe); -void usbhs_pipe_init(struct usbhs_priv *priv); +int usbhs_pipe_is_dir_host(struct usbhs_pipe *pipe); +void usbhs_pipe_init(struct usbhs_priv *priv, + void (*done)(struct usbhs_pkt *pkt), + int (*dma_map_ctrl)(struct usbhs_pkt *pkt, int map)); int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe); void usbhs_pipe_clear_sequence(struct usbhs_pipe *pipe); - +void usbhs_pipe_clear(struct usbhs_pipe *pipe); +int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe); +void usbhs_pipe_enable(struct usbhs_pipe *pipe); +void usbhs_pipe_disable(struct usbhs_pipe *pipe); +void usbhs_pipe_stall(struct usbhs_pipe *pipe); +void usbhs_pipe_select_fifo(struct usbhs_pipe *pipe, struct usbhs_fifo *fifo); + +#define usbhs_pipe_to_priv(p) ((p)->priv) #define usbhs_pipe_number(p) (int)((p) - (p)->priv->pipe_info.pipe) +#define usbhs_pipe_is_dcp(p) ((p)->priv->pipe_info.pipe == (p)) +#define usbhs_pipe_to_fifo(p) ((p)->fifo) +#define usbhs_pipe_is_busy(p) usbhs_pipe_to_fifo(p) /* * dcp control diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 30461fc..1d33260 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -91,6 +91,7 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(SONY_VENDOR_ID, SONY_QN3USB_PRODUCT_ID) }, { USB_DEVICE(SANWA_VENDOR_ID, SANWA_PRODUCT_ID) }, { USB_DEVICE(ADLINK_VENDOR_ID, ADLINK_ND6530_PRODUCT_ID) }, + { USB_DEVICE(WINCHIPHEAD_VENDOR_ID, WINCHIPHEAD_USBSER_PRODUCT_ID) }, { } /* Terminating entry */ }; @@ -342,10 +343,28 @@ static void pl2303_set_termios(struct tty_struct *tty, baud = 6000000; } dbg("%s - baud set = %d", __func__, baud); - buf[0] = baud & 0xff; - buf[1] = (baud >> 8) & 0xff; - buf[2] = (baud >> 16) & 0xff; - buf[3] = (baud >> 24) & 0xff; + if (baud <= 115200) { + buf[0] = baud & 0xff; + buf[1] = (baud >> 8) & 0xff; + buf[2] = (baud >> 16) & 0xff; + buf[3] = (baud >> 24) & 0xff; + } else { + /* apparently the formula for higher speeds is: + * baudrate = 12M * 32 / (2^buf[1]) / buf[0] + */ + unsigned tmp = 12*1000*1000*32 / baud; + buf[3] = 0x80; + buf[2] = 0; + buf[1] = (tmp >= 256); + while (tmp >= 256) { + tmp >>= 2; + buf[1] <<= 1; + } + if (tmp > 256) { + tmp %= 256; + } + buf[0] = tmp; + } } /* For reference buf[4]=0 is 1 stop bits */ diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h index 1b025f7..ca0d237 100644 --- a/drivers/usb/serial/pl2303.h +++ b/drivers/usb/serial/pl2303.h @@ -144,3 +144,7 @@ /* ADLINK ND-6530 RS232,RS485 and RS422 adapter */ #define ADLINK_VENDOR_ID 0x0b63 #define ADLINK_ND6530_PRODUCT_ID 0x6530 + +/* WinChipHead USB->RS 232 adapter */ +#define WINCHIPHEAD_VENDOR_ID 0x4348 +#define WINCHIPHEAD_USBSER_PRODUCT_ID 0x5523 diff --git a/drivers/usb/storage/Kconfig b/drivers/usb/storage/Kconfig index 9798725..58aabe6 100644 --- a/drivers/usb/storage/Kconfig +++ b/drivers/usb/storage/Kconfig @@ -40,6 +40,10 @@ config USB_STORAGE_REALTEK If this driver is compiled as a module, it will be named ums-realtek. +config REALTEK_AUTOPM + bool "Realtek Card Reader autosuspend support" + depends on USB_STORAGE_REALTEK && CONFIG_PM_RUNTIME + default y config USB_STORAGE_DATAFAB tristate "Datafab Compact Flash Reader support" diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c index d509a4a..34adc4b 100644 --- a/drivers/usb/storage/realtek_cr.c +++ b/drivers/usb/storage/realtek_cr.c @@ -24,7 +24,6 @@ #include <linux/blkdev.h> #include <linux/kthread.h> #include <linux/sched.h> -#include <linux/workqueue.h> #include <linux/kernel.h> #include <linux/version.h> @@ -51,6 +50,35 @@ static int auto_delink_en = 1; module_param(auto_delink_en, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(auto_delink_en, "enable auto delink"); +#ifdef CONFIG_REALTEK_AUTOPM +static int ss_en = 1; +module_param(ss_en, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(ss_en, "enable selective suspend"); + +static int ss_delay = 50; +module_param(ss_delay, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(ss_delay, + "seconds to delay before entering selective suspend"); + +enum RTS51X_STAT { + RTS51X_STAT_INIT, + RTS51X_STAT_IDLE, + RTS51X_STAT_RUN, + RTS51X_STAT_SS +}; + +#define POLLING_INTERVAL 50 + +#define rts51x_set_stat(chip, stat) \ + ((chip)->state = (enum RTS51X_STAT)(stat)) +#define rts51x_get_stat(chip) ((chip)->state) + +#define SET_LUN_READY(chip, lun) ((chip)->lun_ready |= ((u8)1 << (lun))) +#define CLR_LUN_READY(chip, lun) ((chip)->lun_ready &= ~((u8)1 << (lun))) +#define TST_LUN_READY(chip, lun) ((chip)->lun_ready & ((u8)1 << (lun))) + +#endif + struct rts51x_status { u16 vid; u16 pid; @@ -70,14 +98,25 @@ struct rts51x_status { }; struct rts51x_chip { - u16 vendor_id; - u16 product_id; - char max_lun; + u16 vendor_id; + u16 product_id; + char max_lun; - struct rts51x_status *status; - int status_len; + struct rts51x_status *status; + int status_len; - u32 flag; + u32 flag; +#ifdef CONFIG_REALTEK_AUTOPM + struct us_data *us; + struct timer_list rts51x_suspend_timer; + unsigned long timer_expires; + int pwr_state; + u8 lun_ready; + enum RTS51X_STAT state; + int support_auto_delink; +#endif + /* used to back up the protocal choosen in probe1 phase */ + proto_cmnd proto_handler_backup; }; /* flag definition */ @@ -97,9 +136,14 @@ struct rts51x_chip { #define RTS51X_GET_VID(chip) ((chip)->vendor_id) #define RTS51X_GET_PID(chip) ((chip)->product_id) +#define VENDOR_ID(chip) ((chip)->status[0].vid) +#define PRODUCT_ID(chip) ((chip)->status[0].pid) #define FW_VERSION(chip) ((chip)->status[0].fw_ver) #define STATUS_LEN(chip) ((chip)->status_len) +#define STATUS_SUCCESS 0 +#define STATUS_FAIL 1 + /* Check card reader function */ #define SUPPORT_DETAILED_TYPE1(chip) \ CHK_BIT((chip)->status[0].function[0], 1) @@ -119,15 +163,6 @@ struct rts51x_chip { #define CHECK_ID(chip, pid, fw_ver) \ (CHECK_PID((chip), (pid)) && CHECK_FW_VER((chip), (fw_ver))) -#define wait_timeout_x(task_state, msecs) \ -do { \ - set_current_state((task_state)); \ - schedule_timeout((msecs) * HZ / 1000); \ -} while (0) - -#define wait_timeout(msecs) \ - wait_timeout_x(TASK_INTERRUPTIBLE, (msecs)) - static int init_realtek_cr(struct us_data *us); /* @@ -143,8 +178,9 @@ static int init_realtek_cr(struct us_data *us); static const struct usb_device_id realtek_cr_ids[] = { # include "unusual_realtek.h" - { } /* Terminating entry */ + {} /* Terminating entry */ }; + MODULE_DEVICE_TABLE(usb, realtek_cr_ids); #undef UNUSUAL_DEV @@ -165,7 +201,7 @@ MODULE_DEVICE_TABLE(usb, realtek_cr_ids); static struct us_unusual_dev realtek_cr_unusual_dev_list[] = { # include "unusual_realtek.h" - { } /* Terminating entry */ + {} /* Terminating entry */ }; #undef UNUSUAL_DEV @@ -174,8 +210,8 @@ static int rts51x_bulk_transport(struct us_data *us, u8 lun, u8 *cmd, int cmd_len, u8 *buf, int buf_len, enum dma_data_direction dir, int *act_len) { - struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf; - struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *) us->iobuf; + struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *)us->iobuf; + struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *)us->iobuf; int result; unsigned int residue; unsigned int cswlen; @@ -195,7 +231,7 @@ static int rts51x_bulk_transport(struct us_data *us, u8 lun, /* send it to out endpoint */ result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, - bcb, cbwlen, NULL); + bcb, cbwlen, NULL); if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; @@ -204,24 +240,23 @@ static int rts51x_bulk_transport(struct us_data *us, u8 lun, if (buf && buf_len) { unsigned int pipe = (dir == DMA_FROM_DEVICE) ? - us->recv_bulk_pipe : us->send_bulk_pipe; + us->recv_bulk_pipe : us->send_bulk_pipe; result = usb_stor_bulk_transfer_buf(us, pipe, - buf, buf_len, NULL); + buf, buf_len, NULL); if (result == USB_STOR_XFER_ERROR) return USB_STOR_TRANSPORT_ERROR; } /* get CSW for device status */ result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, - bcs, US_BULK_CS_WRAP_LEN, &cswlen); + bcs, US_BULK_CS_WRAP_LEN, &cswlen); if (result != USB_STOR_XFER_GOOD) return USB_STOR_TRANSPORT_ERROR; /* check bulk status */ if (bcs->Signature != cpu_to_le32(US_BULK_CS_SIGN)) { US_DEBUGP("Signature mismatch: got %08X, expecting %08X\n", - le32_to_cpu(bcs->Signature), - US_BULK_CS_SIGN); + le32_to_cpu(bcs->Signature), US_BULK_CS_SIGN); return USB_STOR_TRANSPORT_ERROR; } @@ -249,8 +284,8 @@ static int rts51x_bulk_transport(struct us_data *us, u8 lun, case US_BULK_STAT_PHASE: /* phase error -- note that a transport reset will be - * invoked by the invoke_transport() function - */ + * invoked by the invoke_transport() function + */ return USB_STOR_TRANSPORT_ERROR; } @@ -266,10 +301,10 @@ static int rts51x_get_max_lun(struct us_data *us) /* issue the command */ us->iobuf[0] = 0; result = usb_stor_control_msg(us, us->recv_ctrl_pipe, - US_BULK_GET_MAX_LUN, - USB_DIR_IN | USB_TYPE_CLASS | - USB_RECIP_INTERFACE, - 0, us->ifnum, us->iobuf, 1, 10*HZ); + US_BULK_GET_MAX_LUN, + USB_DIR_IN | USB_TYPE_CLASS | + USB_RECIP_INTERFACE, + 0, us->ifnum, us->iobuf, 1, 10 * HZ); US_DEBUGP("GetMaxLUN command result is %d, data is %d\n", result, us->iobuf[0]); @@ -284,16 +319,16 @@ static int rts51x_get_max_lun(struct us_data *us) static int rts51x_read_mem(struct us_data *us, u16 addr, u8 *data, u16 len) { int retval; - u8 cmnd[12] = {0}; + u8 cmnd[12] = { 0 }; US_DEBUGP("%s, addr = 0x%x, len = %d\n", __func__, addr, len); cmnd[0] = 0xF0; cmnd[1] = 0x0D; - cmnd[2] = (u8)(addr >> 8); - cmnd[3] = (u8)addr; - cmnd[4] = (u8)(len >> 8); - cmnd[5] = (u8)len; + cmnd[2] = (u8) (addr >> 8); + cmnd[3] = (u8) addr; + cmnd[4] = (u8) (len >> 8); + cmnd[5] = (u8) len; retval = rts51x_bulk_transport(us, 0, cmnd, 12, data, len, DMA_FROM_DEVICE, NULL); @@ -306,16 +341,16 @@ static int rts51x_read_mem(struct us_data *us, u16 addr, u8 *data, u16 len) static int rts51x_write_mem(struct us_data *us, u16 addr, u8 *data, u16 len) { int retval; - u8 cmnd[12] = {0}; + u8 cmnd[12] = { 0 }; US_DEBUGP("%s, addr = 0x%x, len = %d\n", __func__, addr, len); cmnd[0] = 0xF0; cmnd[1] = 0x0E; - cmnd[2] = (u8)(addr >> 8); - cmnd[3] = (u8)addr; - cmnd[4] = (u8)(len >> 8); - cmnd[5] = (u8)len; + cmnd[2] = (u8) (addr >> 8); + cmnd[3] = (u8) addr; + cmnd[4] = (u8) (len >> 8); + cmnd[5] = (u8) len; retval = rts51x_bulk_transport(us, 0, cmnd, 12, data, len, DMA_TO_DEVICE, NULL); @@ -329,7 +364,7 @@ static int rts51x_read_status(struct us_data *us, u8 lun, u8 *status, int len, int *actlen) { int retval; - u8 cmnd[12] = {0}; + u8 cmnd[12] = { 0 }; US_DEBUGP("%s, lun = %d\n", __func__, lun); @@ -356,12 +391,12 @@ static int rts51x_check_status(struct us_data *us, u8 lun) US_DEBUGP("chip->status_len = %d\n", chip->status_len); - chip->status[lun].vid = ((u16)buf[0] << 8) | buf[1]; - chip->status[lun].pid = ((u16)buf[2] << 8) | buf[3]; + chip->status[lun].vid = ((u16) buf[0] << 8) | buf[1]; + chip->status[lun].pid = ((u16) buf[2] << 8) | buf[3]; chip->status[lun].cur_lun = buf[4]; chip->status[lun].card_type = buf[5]; chip->status[lun].total_lun = buf[6]; - chip->status[lun].fw_ver = ((u16)buf[7] << 8) | buf[8]; + chip->status[lun].fw_ver = ((u16) buf[7] << 8) | buf[8]; chip->status[lun].phy_exist = buf[9]; chip->status[lun].multi_flag = buf[10]; chip->status[lun].multi_card = buf[11]; @@ -432,6 +467,8 @@ static int config_autodelink_after_power_on(struct us_data *us) int retval; u8 value; + US_DEBUGP("%s: <---\n", __func__); + if (!CHK_AUTO_DELINK(chip)) return 0; @@ -465,7 +502,7 @@ static int config_autodelink_after_power_on(struct us_data *us) CLR_BIT(value, 2); if (CHECK_ID(chip, 0x0159, 0x5889) || - CHECK_ID(chip, 0x0138, 0x3880)) { + CHECK_ID(chip, 0x0138, 0x3880)) { CLR_BIT(value, 0); CLR_BIT(value, 7); } @@ -487,6 +524,8 @@ static int config_autodelink_after_power_on(struct us_data *us) } } + US_DEBUGP("%s: --->\n", __func__); + return 0; } @@ -496,6 +535,8 @@ static int config_autodelink_before_power_down(struct us_data *us) int retval; u8 value; + US_DEBUGP("%s: <---\n", __func__); + if (!CHK_AUTO_DELINK(chip)) return 0; @@ -528,14 +569,14 @@ static int config_autodelink_before_power_down(struct us_data *us) return -EIO; } else { if (CHECK_ID(chip, 0x0159, 0x5889) || - CHECK_ID(chip, 0x0138, 0x3880) || - CHECK_ID(chip, 0x0138, 0x3882)) { + CHECK_ID(chip, 0x0138, 0x3880) || + CHECK_ID(chip, 0x0138, 0x3882)) { retval = rts51x_read_mem(us, 0xFE47, &value, 1); if (retval < 0) return -EIO; if (CHECK_ID(chip, 0x0159, 0x5889) || - CHECK_ID(chip, 0x0138, 0x3880)) { + CHECK_ID(chip, 0x0138, 0x3880)) { SET_BIT(value, 0); SET_BIT(value, 7); } @@ -556,25 +597,323 @@ static int config_autodelink_before_power_down(struct us_data *us) } } + US_DEBUGP("%s: --->\n", __func__); + + return 0; +} + +static void fw5895_init(struct us_data *us) +{ + struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra); + int retval; + u8 val; + + US_DEBUGP("%s: <---\n", __func__); + + if ((PRODUCT_ID(chip) != 0x0158) || (FW_VERSION(chip) != 0x5895)) { + US_DEBUGP("Not the specified device, return immediately!\n"); + } else { + retval = rts51x_read_mem(us, 0xFD6F, &val, 1); + if (retval == STATUS_SUCCESS && (val & 0x1F) == 0) { + val = 0x1F; + retval = rts51x_write_mem(us, 0xFD70, &val, 1); + if (retval != STATUS_SUCCESS) + US_DEBUGP("Write memory fail\n"); + } else { + US_DEBUGP("Read memory fail, OR (val & 0x1F) != 0\n"); + } + } + + US_DEBUGP("%s: --->\n", __func__); +} + +#ifdef CONFIG_REALTEK_AUTOPM +static void fw5895_set_mmc_wp(struct us_data *us) +{ + struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra); + int retval; + u8 buf[13]; + + US_DEBUGP("%s: <---\n", __func__); + + if ((PRODUCT_ID(chip) != 0x0158) || (FW_VERSION(chip) != 0x5895)) { + US_DEBUGP("Not the specified device, return immediately!\n"); + } else { + retval = rts51x_read_mem(us, 0xFD6F, buf, 1); + if (retval == STATUS_SUCCESS && (buf[0] & 0x24) == 0x24) { + /* SD Exist and SD WP */ + retval = rts51x_read_mem(us, 0xD04E, buf, 1); + if (retval == STATUS_SUCCESS) { + buf[0] |= 0x04; + retval = rts51x_write_mem(us, 0xFD70, buf, 1); + if (retval != STATUS_SUCCESS) + US_DEBUGP("Write memory fail\n"); + } else { + US_DEBUGP("Read memory fail\n"); + } + } else { + US_DEBUGP("Read memory fail, OR (buf[0]&0x24)!=0x24\n"); + } + } + + US_DEBUGP("%s: --->\n", __func__); +} + +static void rts51x_modi_suspend_timer(struct rts51x_chip *chip) +{ + US_DEBUGP("%s: <---, state:%d\n", __func__, rts51x_get_stat(chip)); + + chip->timer_expires = jiffies + msecs_to_jiffies(1000*ss_delay); + mod_timer(&chip->rts51x_suspend_timer, chip->timer_expires); + + US_DEBUGP("%s: --->\n", __func__); +} + +static void rts51x_suspend_timer_fn(unsigned long data) +{ + struct rts51x_chip *chip = (struct rts51x_chip *)data; + struct us_data *us = chip->us; + + US_DEBUGP("%s: <---\n", __func__); + + switch (rts51x_get_stat(chip)) { + case RTS51X_STAT_INIT: + case RTS51X_STAT_RUN: + rts51x_modi_suspend_timer(chip); + break; + case RTS51X_STAT_IDLE: + case RTS51X_STAT_SS: + US_DEBUGP("%s: RTS51X_STAT_SS, intf->pm_usage_cnt:%d," + "power.usage:%d\n", __func__, + atomic_read(&us->pusb_intf->pm_usage_cnt), + atomic_read(&us->pusb_intf->dev.power.usage_count)); + + if (atomic_read(&us->pusb_intf->pm_usage_cnt) > 0) { + US_DEBUGP("%s: Ready to enter SS state.\n", + __func__); + rts51x_set_stat(chip, RTS51X_STAT_SS); + /* ignore mass storage interface's children */ + pm_suspend_ignore_children(&us->pusb_intf->dev, true); + usb_autopm_put_interface(us->pusb_intf); + US_DEBUGP("%s: RTS51X_STAT_SS 01," + "intf->pm_usage_cnt:%d, power.usage:%d\n", + __func__, + atomic_read(&us->pusb_intf->pm_usage_cnt), + atomic_read( + &us->pusb_intf->dev.power.usage_count)); + } + break; + default: + US_DEBUGP("%s: Unknonwn state !!!\n", __func__); + break; + } + + US_DEBUGP("%s: --->\n", __func__); +} + +static inline int working_scsi(struct scsi_cmnd *srb) +{ + if ((srb->cmnd[0] == TEST_UNIT_READY) || + (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL)) { + return 0; + } + + return 1; +} + +void rts51x_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) +{ + struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra); + static int card_first_show = 1; + static u8 media_not_present[] = { 0x70, 0, 0x02, 0, 0, 0, 0, + 10, 0, 0, 0, 0, 0x3A, 0, 0, 0, 0, 0 + }; + static u8 invalid_cmd_field[] = { 0x70, 0, 0x05, 0, 0, 0, 0, + 10, 0, 0, 0, 0, 0x24, 0, 0, 0, 0, 0 + }; + int ret; + + US_DEBUGP("%s: <---\n", __func__); + + if (working_scsi(srb)) { + US_DEBUGP("%s: working scsi, intf->pm_usage_cnt:%d," + "power.usage:%d\n", __func__, + atomic_read(&us->pusb_intf->pm_usage_cnt), + atomic_read(&us->pusb_intf->dev.power.usage_count)); + + if (atomic_read(&us->pusb_intf->pm_usage_cnt) <= 0) { + ret = usb_autopm_get_interface(us->pusb_intf); + US_DEBUGP("%s: working scsi, ret=%d\n", __func__, ret); + } + if (rts51x_get_stat(chip) != RTS51X_STAT_RUN) + rts51x_set_stat(chip, RTS51X_STAT_RUN); + chip->proto_handler_backup(srb, us); + } else { + if (rts51x_get_stat(chip) == RTS51X_STAT_SS) { + US_DEBUGP("%s: NOT working scsi\n", __func__); + if ((srb->cmnd[0] == TEST_UNIT_READY) && + (chip->pwr_state == US_SUSPEND)) { + if (TST_LUN_READY(chip, srb->device->lun)) { + srb->result = SAM_STAT_GOOD; + } else { + srb->result = SAM_STAT_CHECK_CONDITION; + memcpy(srb->sense_buffer, + media_not_present, + US_SENSE_SIZE); + } + US_DEBUGP("%s: TEST_UNIT_READY--->\n", + __func__); + goto out; + } + if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) { + int prevent = srb->cmnd[4] & 0x1; + if (prevent) { + srb->result = SAM_STAT_CHECK_CONDITION; + memcpy(srb->sense_buffer, + invalid_cmd_field, + US_SENSE_SIZE); + } else { + srb->result = SAM_STAT_GOOD; + } + US_DEBUGP("%s: ALLOW_MEDIUM_REMOVAL--->\n", + __func__); + goto out; + } + } else { + US_DEBUGP("%s: NOT working scsi, not SS\n", __func__); + chip->proto_handler_backup(srb, us); + /* Check wether card is plugged in */ + if (srb->cmnd[0] == TEST_UNIT_READY) { + if (srb->result == SAM_STAT_GOOD) { + SET_LUN_READY(chip, srb->device->lun); + if (card_first_show) { + card_first_show = 0; + fw5895_set_mmc_wp(us); + } + } else { + CLR_LUN_READY(chip, srb->device->lun); + card_first_show = 1; + } + } + if (rts51x_get_stat(chip) != RTS51X_STAT_IDLE) + rts51x_set_stat(chip, RTS51X_STAT_IDLE); + } + } +out: + US_DEBUGP("%s: state:%d\n", __func__, rts51x_get_stat(chip)); + if (rts51x_get_stat(chip) == RTS51X_STAT_RUN) + rts51x_modi_suspend_timer(chip); + + US_DEBUGP("%s: --->\n", __func__); +} + +static int realtek_cr_autosuspend_setup(struct us_data *us) +{ + struct rts51x_chip *chip; + struct rts51x_status *status = NULL; + u8 buf[16]; + int retval; + + chip = (struct rts51x_chip *)us->extra; + chip->support_auto_delink = 0; + chip->pwr_state = US_RESUME; + chip->lun_ready = 0; + rts51x_set_stat(chip, RTS51X_STAT_INIT); + + retval = rts51x_read_status(us, 0, buf, 16, &(chip->status_len)); + if (retval != STATUS_SUCCESS) { + US_DEBUGP("Read status fail\n"); + return -EIO; + } + status = chip->status; + status->vid = ((u16) buf[0] << 8) | buf[1]; + status->pid = ((u16) buf[2] << 8) | buf[3]; + status->cur_lun = buf[4]; + status->card_type = buf[5]; + status->total_lun = buf[6]; + status->fw_ver = ((u16) buf[7] << 8) | buf[8]; + status->phy_exist = buf[9]; + status->multi_flag = buf[10]; + status->multi_card = buf[11]; + status->log_exist = buf[12]; + if (chip->status_len == 16) { + status->detailed_type.detailed_type1 = buf[13]; + status->function[0] = buf[14]; + status->function[1] = buf[15]; + } + + /* back up the proto_handler in us->extra */ + chip = (struct rts51x_chip *)(us->extra); + chip->proto_handler_backup = us->proto_handler; + /* Set the autosuspend_delay to 0 */ + pm_runtime_set_autosuspend_delay(&us->pusb_dev->dev, 0); + /* override us->proto_handler setted in get_protocol() */ + us->proto_handler = rts51x_invoke_transport; + + chip->timer_expires = 0; + setup_timer(&chip->rts51x_suspend_timer, rts51x_suspend_timer_fn, + (unsigned long)chip); + fw5895_init(us); + + /* enable autosuspend funciton of the usb device */ + usb_enable_autosuspend(us->pusb_dev); + return 0; } +#endif static void realtek_cr_destructor(void *extra) { struct rts51x_chip *chip = (struct rts51x_chip *)extra; + US_DEBUGP("%s: <---\n", __func__); + if (!chip) return; - +#ifdef CONFIG_REALTEK_AUTOPM + if (ss_en) { + del_timer(&chip->rts51x_suspend_timer); + chip->timer_expires = 0; + } +#endif kfree(chip->status); } #ifdef CONFIG_PM -static void realtek_pm_hook(struct us_data *us, int pm_state) +int realtek_cr_suspend(struct usb_interface *iface, pm_message_t message) +{ + struct us_data *us = usb_get_intfdata(iface); + + US_DEBUGP("%s: <---\n", __func__); + + /* wait until no command is running */ + mutex_lock(&us->dev_mutex); + + config_autodelink_before_power_down(us); + + mutex_unlock(&us->dev_mutex); + + US_DEBUGP("%s: --->\n", __func__); + + return 0; +} + +static int realtek_cr_resume(struct usb_interface *iface) { - if (pm_state == US_SUSPEND) - (void)config_autodelink_before_power_down(us); + struct us_data *us = usb_get_intfdata(iface); + + US_DEBUGP("%s: <---\n", __func__); + + fw5895_init(us); + config_autodelink_after_power_on(us); + + US_DEBUGP("%s: --->\n", __func__); + + return 0; } +#else +#define realtek_cr_suspend NULL +#define realtek_cr_resume NULL #endif static int init_realtek_cr(struct us_data *us) @@ -588,10 +927,6 @@ static int init_realtek_cr(struct us_data *us) us->extra = chip; us->extra_destructor = realtek_cr_destructor; -#ifdef CONFIG_PM - us->suspend_resume_hook = realtek_pm_hook; -#endif - us->max_lun = chip->max_lun = rts51x_get_max_lun(us); US_DEBUGP("chip->max_lun = %d\n", chip->max_lun); @@ -602,18 +937,24 @@ static int init_realtek_cr(struct us_data *us) goto INIT_FAIL; for (i = 0; i <= (int)(chip->max_lun); i++) { - retval = rts51x_check_status(us, (u8)i); + retval = rts51x_check_status(us, (u8) i); if (retval < 0) goto INIT_FAIL; } if (CHECK_FW_VER(chip, 0x5888) || CHECK_FW_VER(chip, 0x5889) || - CHECK_FW_VER(chip, 0x5901)) + CHECK_FW_VER(chip, 0x5901)) SET_AUTO_DELINK(chip); if (STATUS_LEN(chip) == 16) { if (SUPPORT_AUTO_DELINK(chip)) SET_AUTO_DELINK(chip); } +#ifdef CONFIG_REALTEK_AUTOPM + if (ss_en) { + chip->us = us; + realtek_cr_autosuspend_setup(us); + } +#endif US_DEBUGP("chip->flag = 0x%x\n", chip->flag); @@ -632,7 +973,7 @@ INIT_FAIL: } static int realtek_cr_probe(struct usb_interface *intf, - const struct usb_device_id *id) + const struct usb_device_id *id) { struct us_data *us; int result; @@ -640,25 +981,30 @@ static int realtek_cr_probe(struct usb_interface *intf, US_DEBUGP("Probe Realtek Card Reader!\n"); result = usb_stor_probe1(&us, intf, id, - (id - realtek_cr_ids) + realtek_cr_unusual_dev_list); + (id - realtek_cr_ids) + + realtek_cr_unusual_dev_list); if (result) return result; result = usb_stor_probe2(us); + return result; } static struct usb_driver realtek_cr_driver = { - .name = "ums-realtek", - .probe = realtek_cr_probe, - .disconnect = usb_stor_disconnect, - .suspend = usb_stor_suspend, - .resume = usb_stor_resume, - .reset_resume = usb_stor_reset_resume, - .pre_reset = usb_stor_pre_reset, - .post_reset = usb_stor_post_reset, - .id_table = realtek_cr_ids, - .soft_unbind = 1, + .name = "ums-realtek", + .probe = realtek_cr_probe, + .disconnect = usb_stor_disconnect, + /* .suspend = usb_stor_suspend, */ + /* .resume = usb_stor_resume, */ + .reset_resume = usb_stor_reset_resume, + .suspend = realtek_cr_suspend, + .resume = realtek_cr_resume, + .pre_reset = usb_stor_pre_reset, + .post_reset = usb_stor_post_reset, + .id_table = realtek_cr_ids, + .soft_unbind = 1, + .supports_autosuspend = 1, }; static int __init realtek_cr_init(void) diff --git a/drivers/usb/wusbcore/cbaf.c b/drivers/usb/wusbcore/cbaf.c index c0c5665..200fd7c 100644 --- a/drivers/usb/wusbcore/cbaf.c +++ b/drivers/usb/wusbcore/cbaf.c @@ -298,7 +298,7 @@ static int cbaf_cdid_get(struct cbaf *cbaf) if (result < needed) { dev_err(dev, "Not enough data in DEVICE_INFO reply (%zu vs " "%zu bytes needed)\n", (size_t)result, needed); - return result; + return -ENOENT; } strlcpy(cbaf->device_name, di->DeviceFriendlyName, CBA_NAME_LEN); @@ -350,7 +350,7 @@ static ssize_t cbaf_wusb_chid_store(struct device *dev, return result; result = cbaf_cdid_get(cbaf); if (result < 0) - return -result; + return result; return size; } static DEVICE_ATTR(wusb_chid, 0600, cbaf_wusb_chid_show, cbaf_wusb_chid_store); diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 6ccd93a..4193345 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -83,6 +83,7 @@ #include <linux/spinlock.h> #include <linux/slab.h> #include <linux/hash.h> +#include <linux/ratelimit.h> #include "wa-hc.h" #include "wusbhc.h" @@ -1217,16 +1218,14 @@ static int wa_xfer_status_to_errno(u8 status) if (status == 0) return 0; if (status >= ARRAY_SIZE(xlat)) { - if (printk_ratelimit()) - printk(KERN_ERR "%s(): BUG? " + printk_ratelimited(KERN_ERR "%s(): BUG? " "Unknown WA transfer status 0x%02x\n", __func__, real_status); return -EINVAL; } errno = xlat[status]; if (unlikely(errno > 0)) { - if (printk_ratelimit()) - printk(KERN_ERR "%s(): BUG? " + printk_ratelimited(KERN_ERR "%s(): BUG? " "Inconsistent WA status: 0x%02x\n", __func__, real_status); errno = -errno; diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index b78cba4..a316fba 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -59,6 +59,10 @@ struct usb_configuration; * @hs_descriptors: Table of high speed descriptors, using interface and * string identifiers assigned during @bind(). If this pointer is null, * the function will not be available at high speed. + * @ss_descriptors: Table of super speed descriptors, using interface and + * string identifiers assigned during @bind(). If this + * pointer is null after initiation, the function will not + * be available at super speed. * @config: assigned when @usb_add_function() is called; this is the * configuration with which this function is associated. * @bind: Before the gadget can register, all of its functions bind() to the @@ -77,6 +81,10 @@ struct usb_configuration; * @setup: Used for interface-specific control requests. * @suspend: Notifies functions when the host stops sending USB traffic. * @resume: Notifies functions when the host restarts USB traffic. + * @get_status: Returns function status as a reply to + * GetStatus() request when the recepient is Interface. + * @func_suspend: callback to be called when + * SetFeature(FUNCTION_SUSPEND) is reseived * * A single USB function uses one or more interfaces, and should in most * cases support operation at both full and high speeds. Each function is @@ -106,6 +114,7 @@ struct usb_function { struct usb_gadget_strings **strings; struct usb_descriptor_header **descriptors; struct usb_descriptor_header **hs_descriptors; + struct usb_descriptor_header **ss_descriptors; struct usb_configuration *config; @@ -132,6 +141,10 @@ struct usb_function { void (*suspend)(struct usb_function *); void (*resume)(struct usb_function *); + /* USB 3.0 additions */ + int (*get_status)(struct usb_function *); + int (*func_suspend)(struct usb_function *, + u8 suspend_opt); /* private: */ /* internals */ struct list_head list; @@ -145,20 +158,8 @@ int usb_function_activate(struct usb_function *); int usb_interface_id(struct usb_configuration *, struct usb_function *); -/** - * ep_choose - select descriptor endpoint at current device speed - * @g: gadget, connected and running at some speed - * @hs: descriptor to use for high speed operation - * @fs: descriptor to use for full or low speed operation - */ -static inline struct usb_endpoint_descriptor * -ep_choose(struct usb_gadget *g, struct usb_endpoint_descriptor *hs, - struct usb_endpoint_descriptor *fs) -{ - if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH) - return hs; - return fs; -} +int config_ep_by_speed(struct usb_gadget *g, struct usb_function *f, + struct usb_ep *_ep); #define MAX_CONFIG_INTERFACES 16 /* arbitrary; max 255 */ @@ -231,6 +232,7 @@ struct usb_configuration { struct list_head list; struct list_head functions; u8 next_interface_id; + unsigned superspeed:1; unsigned highspeed:1; unsigned fullspeed:1; struct usb_function *interface[MAX_CONFIG_INTERFACES]; @@ -252,6 +254,7 @@ int usb_add_config(struct usb_composite_dev *, * identifiers. * @strings: tables of strings, keyed by identifiers assigned during bind() * and language IDs provided in control requests + * @max_speed: Highest speed the driver supports. * @needs_serial: set to 1 if the gadget needs userspace to provide * a serial number. If one is not provided, warning will be printed. * @unbind: Reverses bind; called as a side effect of unregistering @@ -279,6 +282,7 @@ struct usb_composite_driver { const char *iManufacturer; const struct usb_device_descriptor *dev; struct usb_gadget_strings **strings; + enum usb_device_speed max_speed; unsigned needs_serial:1; int (*unbind)(struct usb_composite_dev *); diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index dd1571d..087f4b9 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -15,7 +15,13 @@ #ifndef __LINUX_USB_GADGET_H #define __LINUX_USB_GADGET_H +#include <linux/device.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/list.h> #include <linux/slab.h> +#include <linux/types.h> +#include <linux/usb/ch9.h> struct usb_ep; @@ -27,6 +33,7 @@ struct usb_ep; * field, and the usb controller needs one, it is responsible * for mapping and unmapping the buffer. * @length: Length of that data + * @stream_id: The stream id, when USB3.0 bulk streams are being used * @no_interrupt: If true, hints that no completion irq is needed. * Helpful sometimes with deep request queues that are handled * directly by DMA controllers. @@ -81,6 +88,7 @@ struct usb_request { unsigned length; dma_addr_t dma; + unsigned stream_id:16; unsigned no_interrupt:1; unsigned zero:1; unsigned short_not_ok:1; @@ -131,8 +139,17 @@ struct usb_ep_ops { * @maxpacket:The maximum packet size used on this endpoint. The initial * value can sometimes be reduced (hardware allowing), according to * the endpoint descriptor used to configure the endpoint. - * @driver_data:for use by the gadget driver. all other fields are - * read-only to gadget drivers. + * @max_streams: The maximum number of streams supported + * by this EP (0 - 16, actual number is 2^n) + * @mult: multiplier, 'mult' value for SS Isoc EPs + * @maxburst: the maximum number of bursts supported by this EP (for usb3) + * @driver_data:for use by the gadget driver. + * @address: used to identify the endpoint when finding descriptor that + * matches connection speed + * @desc: endpoint descriptor. This pointer is set before the endpoint is + * enabled and remains valid until the endpoint is disabled. + * @comp_desc: In case of SuperSpeed support, this is the endpoint companion + * descriptor that is used to configure the endpoint * * the bus controller driver lists all the general purpose endpoints in * gadget->ep_list. the control endpoint (gadget->ep0) is not in that list, @@ -145,6 +162,12 @@ struct usb_ep { const struct usb_ep_ops *ops; struct list_head ep_list; unsigned maxpacket:16; + unsigned max_streams:16; + unsigned mult:2; + unsigned maxburst:4; + u8 address; + const struct usb_endpoint_descriptor *desc; + const struct usb_ss_ep_comp_descriptor *comp_desc; }; /*-------------------------------------------------------------------------*/ @@ -153,11 +176,8 @@ struct usb_ep { * usb_ep_enable - configure endpoint, making it usable * @ep:the endpoint being configured. may not be the endpoint named "ep0". * drivers discover endpoints through the ep_list of a usb_gadget. - * @desc:descriptor for desired behavior. caller guarantees this pointer - * remains valid until the endpoint is disabled; the data byte order - * is little-endian (usb-standard). * - * when configurations are set, or when interface settings change, the driver + * When configurations are set, or when interface settings change, the driver * will enable or disable the relevant endpoints. while it is enabled, an * endpoint may be used for i/o until the driver receives a disconnect() from * the host or until the endpoint is disabled. @@ -172,10 +192,9 @@ struct usb_ep { * * returns zero, or a negative error code. */ -static inline int usb_ep_enable(struct usb_ep *ep, - const struct usb_endpoint_descriptor *desc) +static inline int usb_ep_enable(struct usb_ep *ep) { - return ep->ops->enable(ep, desc); + return ep->ops->enable(ep, ep->desc); } /** @@ -416,7 +435,16 @@ static inline void usb_ep_fifo_flush(struct usb_ep *ep) /*-------------------------------------------------------------------------*/ +struct usb_dcd_config_params { + __u8 bU1devExitLat; /* U1 Device exit Latency */ +#define USB_DEFULT_U1_DEV_EXIT_LAT 0x01 /* Less then 1 microsec */ + __le16 bU2DevExitLat; /* U2 Device exit Latency */ +#define USB_DEFULT_U2_DEV_EXIT_LAT 0x1F4 /* Less then 500 microsec */ +}; + + struct usb_gadget; +struct usb_gadget_driver; /* the rest of the api to the controller hardware: device operations, * which don't involve endpoints (or i/o). @@ -430,6 +458,16 @@ struct usb_gadget_ops { int (*pullup) (struct usb_gadget *, int is_on); int (*ioctl)(struct usb_gadget *, unsigned code, unsigned long param); + void (*get_config_params)(struct usb_dcd_config_params *); + int (*udc_start)(struct usb_gadget *, + struct usb_gadget_driver *); + int (*udc_stop)(struct usb_gadget *, + struct usb_gadget_driver *); + + /* Those two are deprecated */ + int (*start)(struct usb_gadget_driver *, + int (*bind)(struct usb_gadget *)); + int (*stop)(struct usb_gadget_driver *); }; /** @@ -521,6 +559,24 @@ static inline int gadget_is_dualspeed(struct usb_gadget *g) } /** + * gadget_is_superspeed() - return true if the hardware handles + * supperspeed + * @g: controller that might support supper speed + */ +static inline int gadget_is_superspeed(struct usb_gadget *g) +{ +#ifdef CONFIG_USB_GADGET_SUPERSPEED + /* + * runtime test would check "g->is_superspeed" ... that might be + * useful to work around hardware bugs, but is mostly pointless + */ + return 1; +#else + return 0; +#endif +} + +/** * gadget_is_otg - return true iff the hardware is OTG-ready * @g: controller that might have a Mini-AB connector * @@ -821,6 +877,9 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, */ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver); +extern int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget); +extern void usb_del_gadget_udc(struct usb_gadget *gadget); + /*-------------------------------------------------------------------------*/ /* utility to simplify dealing with string descriptors */ @@ -870,12 +929,6 @@ int usb_gadget_config_buf(const struct usb_config_descriptor *config, struct usb_descriptor_header **usb_copy_descriptors( struct usb_descriptor_header **); -/* return copy of endpoint descriptor given original descriptor set */ -struct usb_endpoint_descriptor *usb_find_endpoint( - struct usb_descriptor_header **src, - struct usb_descriptor_header **copy, - struct usb_endpoint_descriptor *match); - /** * usb_free_descriptors - free descriptors returned by usb_copy_descriptors() * @v: vector of descriptors @@ -892,6 +945,11 @@ static inline void usb_free_descriptors(struct usb_descriptor_header **v) extern struct usb_ep *usb_ep_autoconfig(struct usb_gadget *, struct usb_endpoint_descriptor *); + +extern struct usb_ep *usb_ep_autoconfig_ss(struct usb_gadget *, + struct usb_endpoint_descriptor *, + struct usb_ss_ep_comp_descriptor *); + extern void usb_ep_autoconfig_reset(struct usb_gadget *); #endif /* __LINUX_USB_GADGET_H */ diff --git a/include/linux/usb/m66592.h b/include/linux/usb/m66592.h index cda9625..a4ba31a 100644 --- a/include/linux/usb/m66592.h +++ b/include/linux/usb/m66592.h @@ -38,6 +38,8 @@ struct m66592_platdata { /* (external controller only) one = 3.3V, zero = 1.5V */ unsigned vif:1; + /* (external controller only) set one = WR0_N shorted to WR1_N */ + unsigned wr0_shorted_to_wr1:1; }; #endif /* __LINUX_USB_M66592_H */ diff --git a/include/linux/usb/r8a66597.h b/include/linux/usb/r8a66597.h index 26d2167..b6b8660 100644 --- a/include/linux/usb/r8a66597.h +++ b/include/linux/usb/r8a66597.h @@ -3,7 +3,7 @@ * * Copyright (C) 2009 Renesas Solutions Corp. * - * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> + * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> * * 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 @@ -31,6 +31,9 @@ struct r8a66597_platdata { /* This callback can control port power instead of DVSTCTR register. */ void (*port_power)(int port, int power); + /* This parameter is for BUSWAIT */ + u16 buswait; + /* set one = on chip controller, set zero = external controller */ unsigned on_chip:1; @@ -42,6 +45,9 @@ struct r8a66597_platdata { /* set one = big endian, set zero = little endian */ unsigned endian:1; + + /* (external controller only) set one = WR0_N shorted to WR1_N */ + unsigned wr0_shorted_to_wr1:1; }; /* Register definitions */ diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h index 3a7f1d9..8977431 100644 --- a/include/linux/usb/renesas_usbhs.h +++ b/include/linux/usb/renesas_usbhs.h @@ -110,6 +110,23 @@ struct renesas_usbhs_driver_param { * delay time from notify_hotplug callback */ int detection_delay; + + /* + * option: + * + * dma id for dmaengine + */ + int d0_tx_id; + int d0_rx_id; + int d1_tx_id; + int d1_rx_id; + + /* + * option: + * + * pio <--> dma border. + */ + int pio_dma_border; /* default is 64byte */ }; /* |
