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-rw-r--r--sound/usb/usx2y/Makefile3
-rw-r--r--sound/usb/usx2y/usX2Yhwdep.c280
-rw-r--r--sound/usb/usx2y/usX2Yhwdep.h6
-rw-r--r--sound/usb/usx2y/usbus428ctldefs.h108
-rw-r--r--sound/usb/usx2y/usbusx2y.c461
-rw-r--r--sound/usb/usx2y/usbusx2y.h84
-rw-r--r--sound/usb/usx2y/usbusx2yaudio.c1026
-rw-r--r--sound/usb/usx2y/usx2y.h51
-rw-r--r--sound/usb/usx2y/usx2yhwdeppcm.c807
-rw-r--r--sound/usb/usx2y/usx2yhwdeppcm.h21
10 files changed, 2847 insertions, 0 deletions
diff --git a/sound/usb/usx2y/Makefile b/sound/usb/usx2y/Makefile
new file mode 100644
index 0000000..9ac22bc
--- /dev/null
+++ b/sound/usb/usx2y/Makefile
@@ -0,0 +1,3 @@
+snd-usb-usx2y-objs := usbusx2y.o usX2Yhwdep.o usx2yhwdeppcm.o
+
+obj-$(CONFIG_SND_USB_USX2Y) += snd-usb-usx2y.o
diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c
new file mode 100644
index 0000000..bef9b0c
--- /dev/null
+++ b/sound/usb/usx2y/usX2Yhwdep.c
@@ -0,0 +1,280 @@
+/*
+ * Driver for Tascam US-X2Y USB soundcards
+ *
+ * FPGA Loader + ALSA Startup
+ *
+ * Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de>
+ *
+ * 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 <sound/driver.h>
+#include <linux/interrupt.h>
+#include <linux/usb.h>
+#include <sound/core.h>
+#include <sound/memalloc.h>
+#include <sound/pcm.h>
+#include <sound/hwdep.h>
+#include "usx2y.h"
+#include "usbusx2y.h"
+#include "usX2Yhwdep.h"
+
+int usX2Y_hwdep_pcm_new(snd_card_t* card);
+
+
+static struct page * snd_us428ctls_vm_nopage(struct vm_area_struct *area, unsigned long address, int *type)
+{
+ unsigned long offset;
+ struct page * page;
+ void *vaddr;
+
+ snd_printdd("ENTER, start %lXh, ofs %lXh, pgoff %ld, addr %lXh\n",
+ area->vm_start,
+ address - area->vm_start,
+ (address - area->vm_start) >> PAGE_SHIFT,
+ address);
+
+ offset = area->vm_pgoff << PAGE_SHIFT;
+ offset += address - area->vm_start;
+ snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_OOM);
+ vaddr = (char*)((usX2Ydev_t*)area->vm_private_data)->us428ctls_sharedmem + offset;
+ page = virt_to_page(vaddr);
+ get_page(page);
+ snd_printdd( "vaddr=%p made us428ctls_vm_nopage() return %p; offset=%lX\n", vaddr, page, offset);
+
+ if (type)
+ *type = VM_FAULT_MINOR;
+
+ return page;
+}
+
+static struct vm_operations_struct us428ctls_vm_ops = {
+ .nopage = snd_us428ctls_vm_nopage,
+};
+
+static int snd_us428ctls_mmap(snd_hwdep_t * hw, struct file *filp, struct vm_area_struct *area)
+{
+ unsigned long size = (unsigned long)(area->vm_end - area->vm_start);
+ usX2Ydev_t *us428 = (usX2Ydev_t*)hw->private_data;
+
+ // FIXME this hwdep interface is used twice: fpga download and mmap for controlling Lights etc. Maybe better using 2 hwdep devs?
+ // so as long as the device isn't fully initialised yet we return -EBUSY here.
+ if (!(((usX2Ydev_t*)hw->private_data)->chip_status & USX2Y_STAT_CHIP_INIT))
+ return -EBUSY;
+
+ /* if userspace tries to mmap beyond end of our buffer, fail */
+ if (size > ((PAGE_SIZE - 1 + sizeof(us428ctls_sharedmem_t)) / PAGE_SIZE) * PAGE_SIZE) {
+ snd_printd( "%lu > %lu\n", size, (unsigned long)sizeof(us428ctls_sharedmem_t));
+ return -EINVAL;
+ }
+
+ if (!us428->us428ctls_sharedmem) {
+ init_waitqueue_head(&us428->us428ctls_wait_queue_head);
+ if(!(us428->us428ctls_sharedmem = snd_malloc_pages(sizeof(us428ctls_sharedmem_t), GFP_KERNEL)))
+ return -ENOMEM;
+ memset(us428->us428ctls_sharedmem, -1, sizeof(us428ctls_sharedmem_t));
+ us428->us428ctls_sharedmem->CtlSnapShotLast = -2;
+ }
+ area->vm_ops = &us428ctls_vm_ops;
+ area->vm_flags |= VM_RESERVED;
+ area->vm_private_data = hw->private_data;
+ return 0;
+}
+
+static unsigned int snd_us428ctls_poll(snd_hwdep_t *hw, struct file *file, poll_table *wait)
+{
+ unsigned int mask = 0;
+ usX2Ydev_t *us428 = (usX2Ydev_t*)hw->private_data;
+ us428ctls_sharedmem_t *shm = us428->us428ctls_sharedmem;
+ if (us428->chip_status & USX2Y_STAT_CHIP_HUP)
+ return POLLHUP;
+
+ poll_wait(file, &us428->us428ctls_wait_queue_head, wait);
+
+ if (shm != NULL && shm->CtlSnapShotLast != shm->CtlSnapShotRed)
+ mask |= POLLIN;
+
+ return mask;
+}
+
+
+static int snd_usX2Y_hwdep_open(snd_hwdep_t *hw, struct file *file)
+{
+ return 0;
+}
+
+static int snd_usX2Y_hwdep_release(snd_hwdep_t *hw, struct file *file)
+{
+ return 0;
+}
+
+static int snd_usX2Y_hwdep_dsp_status(snd_hwdep_t *hw, snd_hwdep_dsp_status_t *info)
+{
+ static char *type_ids[USX2Y_TYPE_NUMS] = {
+ [USX2Y_TYPE_122] = "us122",
+ [USX2Y_TYPE_224] = "us224",
+ [USX2Y_TYPE_428] = "us428",
+ };
+ int id = -1;
+
+ switch (le16_to_cpu(((usX2Ydev_t*)hw->private_data)->chip.dev->descriptor.idProduct)) {
+ case USB_ID_US122:
+ id = USX2Y_TYPE_122;
+ break;
+ case USB_ID_US224:
+ id = USX2Y_TYPE_224;
+ break;
+ case USB_ID_US428:
+ id = USX2Y_TYPE_428;
+ break;
+ }
+ if (0 > id)
+ return -ENODEV;
+ strcpy(info->id, type_ids[id]);
+ info->num_dsps = 2; // 0: Prepad Data, 1: FPGA Code
+ if (((usX2Ydev_t*)hw->private_data)->chip_status & USX2Y_STAT_CHIP_INIT)
+ info->chip_ready = 1;
+ info->version = USX2Y_DRIVER_VERSION;
+ return 0;
+}
+
+
+static int usX2Y_create_usbmidi(snd_card_t* card )
+{
+ static snd_usb_midi_endpoint_info_t quirk_data_1 = {
+ .out_ep =0x06,
+ .in_ep = 0x06,
+ .out_cables = 0x001,
+ .in_cables = 0x001
+ };
+ static snd_usb_audio_quirk_t quirk_1 = {
+ .vendor_name = "TASCAM",
+ .product_name = NAME_ALLCAPS,
+ .ifnum = 0,
+ .type = QUIRK_MIDI_FIXED_ENDPOINT,
+ .data = &quirk_data_1
+ };
+ static snd_usb_midi_endpoint_info_t quirk_data_2 = {
+ .out_ep =0x06,
+ .in_ep = 0x06,
+ .out_cables = 0x003,
+ .in_cables = 0x003
+ };
+ static snd_usb_audio_quirk_t quirk_2 = {
+ .vendor_name = "TASCAM",
+ .product_name = "US428",
+ .ifnum = 0,
+ .type = QUIRK_MIDI_FIXED_ENDPOINT,
+ .data = &quirk_data_2
+ };
+ struct usb_device *dev = usX2Y(card)->chip.dev;
+ struct usb_interface *iface = usb_ifnum_to_if(dev, 0);
+ snd_usb_audio_quirk_t *quirk = le16_to_cpu(dev->descriptor.idProduct) == USB_ID_US428 ? &quirk_2 : &quirk_1;
+
+ snd_printdd("usX2Y_create_usbmidi \n");
+ return snd_usb_create_midi_interface(&usX2Y(card)->chip, iface, quirk);
+}
+
+static int usX2Y_create_alsa_devices(snd_card_t* card)
+{
+ int err;
+
+ do {
+ if ((err = usX2Y_create_usbmidi(card)) < 0) {
+ snd_printk("usX2Y_create_alsa_devices: usX2Y_create_usbmidi error %i \n", err);
+ break;
+ }
+ if ((err = usX2Y_audio_create(card)) < 0)
+ break;
+ if ((err = usX2Y_hwdep_pcm_new(card)) < 0)
+ break;
+ if ((err = snd_card_register(card)) < 0)
+ break;
+ } while (0);
+
+ return err;
+}
+
+static int snd_usX2Y_hwdep_dsp_load(snd_hwdep_t *hw, snd_hwdep_dsp_image_t *dsp)
+{
+ usX2Ydev_t *priv = hw->private_data;
+ int lret, err = -EINVAL;
+ snd_printdd( "dsp_load %s\n", dsp->name);
+
+ if (access_ok(VERIFY_READ, dsp->image, dsp->length)) {
+ struct usb_device* dev = priv->chip.dev;
+ char *buf = kmalloc(dsp->length, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+ if (copy_from_user(buf, dsp->image, dsp->length)) {
+ kfree(buf);
+ return -EFAULT;
+ }
+ err = usb_set_interface(dev, 0, 1);
+ if (err)
+ snd_printk("usb_set_interface error \n");
+ else
+ err = usb_bulk_msg(dev, usb_sndbulkpipe(dev, 2), buf, dsp->length, &lret, 6000);
+ kfree(buf);
+ }
+ if (err)
+ return err;
+ if (dsp->index == 1) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(HZ/4); // give the device some time
+ err = usX2Y_AsyncSeq04_init(priv);
+ if (err) {
+ snd_printk("usX2Y_AsyncSeq04_init error \n");
+ return err;
+ }
+ err = usX2Y_In04_init(priv);
+ if (err) {
+ snd_printk("usX2Y_In04_init error \n");
+ return err;
+ }
+ err = usX2Y_create_alsa_devices(hw->card);
+ if (err) {
+ snd_printk("usX2Y_create_alsa_devices error %i \n", err);
+ snd_card_free(hw->card);
+ return err;
+ }
+ priv->chip_status |= USX2Y_STAT_CHIP_INIT;
+ snd_printdd("%s: alsa all started\n", hw->name);
+ }
+ return err;
+}
+
+
+int usX2Y_hwdep_new(snd_card_t* card, struct usb_device* device)
+{
+ int err;
+ snd_hwdep_t *hw;
+
+ if ((err = snd_hwdep_new(card, SND_USX2Y_LOADER_ID, 0, &hw)) < 0)
+ return err;
+
+ hw->iface = SNDRV_HWDEP_IFACE_USX2Y;
+ hw->private_data = usX2Y(card);
+ hw->ops.open = snd_usX2Y_hwdep_open;
+ hw->ops.release = snd_usX2Y_hwdep_release;
+ hw->ops.dsp_status = snd_usX2Y_hwdep_dsp_status;
+ hw->ops.dsp_load = snd_usX2Y_hwdep_dsp_load;
+ hw->ops.mmap = snd_us428ctls_mmap;
+ hw->ops.poll = snd_us428ctls_poll;
+ hw->exclusive = 1;
+ sprintf(hw->name, "/proc/bus/usb/%03d/%03d", device->bus->busnum, device->devnum);
+ return 0;
+}
+
diff --git a/sound/usb/usx2y/usX2Yhwdep.h b/sound/usb/usx2y/usX2Yhwdep.h
new file mode 100644
index 0000000..d612a26
--- /dev/null
+++ b/sound/usb/usx2y/usX2Yhwdep.h
@@ -0,0 +1,6 @@
+#ifndef USX2YHWDEP_H
+#define USX2YHWDEP_H
+
+int usX2Y_hwdep_new(snd_card_t* card, struct usb_device* device);
+
+#endif
diff --git a/sound/usb/usx2y/usbus428ctldefs.h b/sound/usb/usx2y/usbus428ctldefs.h
new file mode 100644
index 0000000..6af1643
--- /dev/null
+++ b/sound/usb/usx2y/usbus428ctldefs.h
@@ -0,0 +1,108 @@
+/*
+ *
+ * Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de>
+ *
+ * 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
+ */
+
+enum E_In84{
+ eFader0 = 0,
+ eFader1,
+ eFader2,
+ eFader3,
+ eFader4,
+ eFader5,
+ eFader6,
+ eFader7,
+ eFaderM,
+ eTransport,
+ eModifier = 10,
+ eFilterSelect,
+ eSelect,
+ eMute,
+
+ eSwitch = 15,
+ eWheelGain,
+ eWheelFreq,
+ eWheelQ,
+ eWheelPan,
+ eWheel = 20
+};
+
+#define T_RECORD 1
+#define T_PLAY 2
+#define T_STOP 4
+#define T_F_FWD 8
+#define T_REW 0x10
+#define T_SOLO 0x20
+#define T_REC 0x40
+#define T_NULL 0x80
+
+
+struct us428_ctls{
+ unsigned char Fader[9];
+ unsigned char Transport;
+ unsigned char Modifier;
+ unsigned char FilterSelect;
+ unsigned char Select;
+ unsigned char Mute;
+ unsigned char UNKNOWN;
+ unsigned char Switch;
+ unsigned char Wheel[5];
+};
+
+typedef struct us428_ctls us428_ctls_t;
+
+typedef struct us428_setByte{
+ unsigned char Offset,
+ Value;
+}us428_setByte_t;
+
+enum {
+ eLT_Volume = 0,
+ eLT_Light
+};
+
+typedef struct usX2Y_volume {
+ unsigned char Channel,
+ LH,
+ LL,
+ RH,
+ RL;
+} usX2Y_volume_t;
+
+struct us428_lights{
+ us428_setByte_t Light[7];
+};
+typedef struct us428_lights us428_lights_t;
+
+typedef struct {
+ char type;
+ union {
+ usX2Y_volume_t vol;
+ us428_lights_t lights;
+ } val;
+} us428_p4out_t;
+
+#define N_us428_ctl_BUFS 16
+#define N_us428_p4out_BUFS 16
+struct us428ctls_sharedmem{
+ us428_ctls_t CtlSnapShot[N_us428_ctl_BUFS];
+ int CtlSnapShotDiffersAt[N_us428_ctl_BUFS];
+ int CtlSnapShotLast, CtlSnapShotRed;
+ us428_p4out_t p4out[N_us428_p4out_BUFS];
+ int p4outLast, p4outSent;
+};
+typedef struct us428ctls_sharedmem us428ctls_sharedmem_t;
diff --git a/sound/usb/usx2y/usbusx2y.c b/sound/usb/usx2y/usbusx2y.c
new file mode 100644
index 0000000..b06a267
--- /dev/null
+++ b/sound/usb/usx2y/usbusx2y.c
@@ -0,0 +1,461 @@
+/*
+ * usbusy2y.c - ALSA USB US-428 Driver
+ *
+2004-12-14 Karsten Wiese
+ Version 0.8.7.1:
+ snd_pcm_open for rawusb pcm-devices now returns -EBUSY if called without rawusb's hwdep device being open.
+
+2004-12-02 Karsten Wiese
+ Version 0.8.7:
+ Use macro usb_maxpacket() for portability.
+
+2004-10-26 Karsten Wiese
+ Version 0.8.6:
+ wake_up() process waiting in usX2Y_urbs_start() on error.
+
+2004-10-21 Karsten Wiese
+ Version 0.8.5:
+ nrpacks is runtime or compiletime configurable now with tested values from 1 to 4.
+
+2004-10-03 Karsten Wiese
+ Version 0.8.2:
+ Avoid any possible racing while in prepare callback.
+
+2004-09-30 Karsten Wiese
+ Version 0.8.0:
+ Simplified things and made ohci work again.
+
+2004-09-20 Karsten Wiese
+ Version 0.7.3:
+ Use usb_kill_urb() instead of deprecated (kernel 2.6.9) usb_unlink_urb().
+
+2004-07-13 Karsten Wiese
+ Version 0.7.1:
+ Don't sleep in START/STOP callbacks anymore.
+ us428 channels C/D not handled just for this version, sorry.
+
+2004-06-21 Karsten Wiese
+ Version 0.6.4:
+ Temporarely suspend midi input
+ to sanely call usb_set_interface() when setting format.
+
+2004-06-12 Karsten Wiese
+ Version 0.6.3:
+ Made it thus the following rule is enforced:
+ "All pcm substreams of one usX2Y have to operate at the same rate & format."
+
+2004-04-06 Karsten Wiese
+ Version 0.6.0:
+ Runs on 2.6.5 kernel without any "--with-debug=" things.
+ us224 reported running.
+
+2004-01-14 Karsten Wiese
+ Version 0.5.1:
+ Runs with 2.6.1 kernel.
+
+2003-12-30 Karsten Wiese
+ Version 0.4.1:
+ Fix 24Bit 4Channel capturing for the us428.
+
+2003-11-27 Karsten Wiese, Martin Langer
+ Version 0.4:
+ us122 support.
+ us224 could be tested by uncommenting the sections containing USB_ID_US224
+
+2003-11-03 Karsten Wiese
+ Version 0.3:
+ 24Bit support.
+ "arecord -D hw:1 -c 2 -r 48000 -M -f S24_3LE|aplay -D hw:1 -c 2 -r 48000 -M -f S24_3LE" works.
+
+2003-08-22 Karsten Wiese
+ Version 0.0.8:
+ Removed EZUSB Firmware. First Stage Firmwaredownload is now done by tascam-firmware downloader.
+ See:
+ http://usb-midi-fw.sourceforge.net/tascam-firmware.tar.gz
+
+2003-06-18 Karsten Wiese
+ Version 0.0.5:
+ changed to compile with kernel 2.4.21 and alsa 0.9.4
+
+2002-10-16 Karsten Wiese
+ Version 0.0.4:
+ compiles again with alsa-current.
+ USB_ISO_ASAP not used anymore (most of the time), instead
+ urb->start_frame is calculated here now, some calls inside usb-driver don't need to happen anymore.
+
+ To get the best out of this:
+ Disable APM-support in the kernel as APM-BIOS calls (once each second) hard disable interrupt for many precious milliseconds.
+ This helped me much on my slowish PII 400 & PIII 500.
+ ACPI yet untested but might cause the same bad behaviour.
+ Use a kernel with lowlatency and preemptiv patches applied.
+ To autoload snd-usb-midi append a line
+ post-install snd-usb-us428 modprobe snd-usb-midi
+ to /etc/modules.conf.
+
+ known problems:
+ sliders, knobs, lights not yet handled except MASTER Volume slider.
+ "pcm -c 2" doesn't work. "pcm -c 2 -m direct_interleaved" does.
+ KDE3: "Enable full duplex operation" deadlocks.
+
+
+2002-08-31 Karsten Wiese
+ Version 0.0.3: audio also simplex;
+ simplifying: iso urbs only 1 packet, melted structs.
+ ASYNC_UNLINK not used anymore: no more crashes so far.....
+ for alsa 0.9 rc3.
+
+2002-08-09 Karsten Wiese
+ Version 0.0.2: midi works with snd-usb-midi, audio (only fullduplex now) with i.e. bristol.
+ The firmware has been sniffed from win2k us-428 driver 3.09.
+
+ * Copyright (c) 2002 - 2004 Karsten Wiese
+ *
+ * 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 <sound/driver.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/interrupt.h>
+#include <linux/usb.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+
+#include <sound/rawmidi.h>
+#include "usx2y.h"
+#include "usbusx2y.h"
+#include "usX2Yhwdep.h"
+
+
+
+MODULE_AUTHOR("Karsten Wiese <annabellesgarden@yahoo.de>");
+MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.8.7.1");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{TASCAM(0x1604), "NAME_ALLCAPS"(0x8001)(0x8005)(0x8007) }}");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
+static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS".");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS".");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
+
+
+static int snd_usX2Y_card_used[SNDRV_CARDS];
+
+static void usX2Y_usb_disconnect(struct usb_device* usb_device, void* ptr);
+static void snd_usX2Y_card_private_free(snd_card_t *card);
+
+/*
+ * pipe 4 is used for switching the lamps, setting samplerate, volumes ....
+ */
+static void i_usX2Y_Out04Int(struct urb* urb, struct pt_regs *regs)
+{
+#ifdef CONFIG_SND_DEBUG
+ if (urb->status) {
+ int i;
+ usX2Ydev_t* usX2Y = urb->context;
+ for (i = 0; i < 10 && usX2Y->AS04.urb[i] != urb; i++);
+ snd_printdd("i_usX2Y_Out04Int() urb %i status=%i\n", i, urb->status);
+ }
+#endif
+}
+
+static void i_usX2Y_In04Int(struct urb* urb, struct pt_regs *regs)
+{
+ int err = 0;
+ usX2Ydev_t *usX2Y = urb->context;
+ us428ctls_sharedmem_t *us428ctls = usX2Y->us428ctls_sharedmem;
+
+ usX2Y->In04IntCalls++;
+
+ if (urb->status) {
+ snd_printdd("Interrupt Pipe 4 came back with status=%i\n", urb->status);
+ return;
+ }
+
+ // printk("%i:0x%02X ", 8, (int)((unsigned char*)usX2Y->In04Buf)[8]); Master volume shows 0 here if fader is at max during boot ?!?
+ if (us428ctls) {
+ int diff = -1;
+ if (-2 == us428ctls->CtlSnapShotLast) {
+ diff = 0;
+ memcpy(usX2Y->In04Last, usX2Y->In04Buf, sizeof(usX2Y->In04Last));
+ us428ctls->CtlSnapShotLast = -1;
+ } else {
+ int i;
+ for (i = 0; i < 21; i++) {
+ if (usX2Y->In04Last[i] != ((char*)usX2Y->In04Buf)[i]) {
+ if (diff < 0)
+ diff = i;
+ usX2Y->In04Last[i] = ((char*)usX2Y->In04Buf)[i];
+ }
+ }
+ }
+ if (0 <= diff) {
+ int n = us428ctls->CtlSnapShotLast + 1;
+ if (n >= N_us428_ctl_BUFS || n < 0)
+ n = 0;
+ memcpy(us428ctls->CtlSnapShot + n, usX2Y->In04Buf, sizeof(us428ctls->CtlSnapShot[0]));
+ us428ctls->CtlSnapShotDiffersAt[n] = diff;
+ us428ctls->CtlSnapShotLast = n;
+ wake_up(&usX2Y->us428ctls_wait_queue_head);
+ }
+ }
+
+
+ if (usX2Y->US04) {
+ if (0 == usX2Y->US04->submitted)
+ do
+ err = usb_submit_urb(usX2Y->US04->urb[usX2Y->US04->submitted++], GFP_ATOMIC);
+ while (!err && usX2Y->US04->submitted < usX2Y->US04->len);
+ } else
+ if (us428ctls && us428ctls->p4outLast >= 0 && us428ctls->p4outLast < N_us428_p4out_BUFS) {
+ if (us428ctls->p4outLast != us428ctls->p4outSent) {
+ int j, send = us428ctls->p4outSent + 1;
+ if (send >= N_us428_p4out_BUFS)
+ send = 0;
+ for (j = 0; j < URBS_AsyncSeq && !err; ++j)
+ if (0 == usX2Y->AS04.urb[j]->status) {
+ us428_p4out_t *p4out = us428ctls->p4out + send; // FIXME if more then 1 p4out is new, 1 gets lost.
+ usb_fill_bulk_urb(usX2Y->AS04.urb[j], usX2Y->chip.dev,
+ usb_sndbulkpipe(usX2Y->chip.dev, 0x04), &p4out->val.vol,
+ p4out->type == eLT_Light ? sizeof(us428_lights_t) : 5,
+ i_usX2Y_Out04Int, usX2Y);
+ err = usb_submit_urb(usX2Y->AS04.urb[j], GFP_ATOMIC);
+ us428ctls->p4outSent = send;
+ break;
+ }
+ }
+ }
+
+ if (err) {
+ snd_printk("In04Int() usb_submit_urb err=%i\n", err);
+ }
+
+ urb->dev = usX2Y->chip.dev;
+ usb_submit_urb(urb, GFP_ATOMIC);
+}
+
+/*
+ * Prepare some urbs
+ */
+int usX2Y_AsyncSeq04_init(usX2Ydev_t* usX2Y)
+{
+ int err = 0,
+ i;
+
+ if (NULL == (usX2Y->AS04.buffer = kmalloc(URB_DataLen_AsyncSeq*URBS_AsyncSeq, GFP_KERNEL))) {
+ err = -ENOMEM;
+ } else
+ for (i = 0; i < URBS_AsyncSeq; ++i) {
+ if (NULL == (usX2Y->AS04.urb[i] = usb_alloc_urb(0, GFP_KERNEL))) {
+ err = -ENOMEM;
+ break;
+ }
+ usb_fill_bulk_urb( usX2Y->AS04.urb[i], usX2Y->chip.dev,
+ usb_sndbulkpipe(usX2Y->chip.dev, 0x04),
+ usX2Y->AS04.buffer + URB_DataLen_AsyncSeq*i, 0,
+ i_usX2Y_Out04Int, usX2Y
+ );
+ }
+ return err;
+}
+
+int usX2Y_In04_init(usX2Ydev_t* usX2Y)
+{
+ int err = 0;
+ if (! (usX2Y->In04urb = usb_alloc_urb(0, GFP_KERNEL)))
+ return -ENOMEM;
+
+ if (! (usX2Y->In04Buf = kmalloc(21, GFP_KERNEL))) {
+ usb_free_urb(usX2Y->In04urb);
+ return -ENOMEM;
+ }
+
+ init_waitqueue_head(&usX2Y->In04WaitQueue);
+ usb_fill_int_urb(usX2Y->In04urb, usX2Y->chip.dev, usb_rcvintpipe(usX2Y->chip.dev, 0x4),
+ usX2Y->In04Buf, 21,
+ i_usX2Y_In04Int, usX2Y,
+ 10);
+ err = usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
+ return err;
+}
+
+static void usX2Y_unlinkSeq(snd_usX2Y_AsyncSeq_t* S)
+{
+ int i;
+ for (i = 0; i < URBS_AsyncSeq; ++i) {
+ if (S[i].urb) {
+ usb_kill_urb(S->urb[i]);
+ usb_free_urb(S->urb[i]);
+ S->urb[i] = NULL;
+ }
+ }
+ kfree(S->buffer);
+}
+
+
+static struct usb_device_id snd_usX2Y_usb_id_table[] = {
+ {
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x1604,
+ .idProduct = USB_ID_US428
+ },
+ {
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x1604,
+ .idProduct = USB_ID_US122
+ },
+ {
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x1604,
+ .idProduct = USB_ID_US224
+ },
+ { /* terminator */ }
+};
+
+static snd_card_t* usX2Y_create_card(struct usb_device* device)
+{
+ int dev;
+ snd_card_t* card;
+ for (dev = 0; dev < SNDRV_CARDS; ++dev)
+ if (enable[dev] && !snd_usX2Y_card_used[dev])
+ break;
+ if (dev >= SNDRV_CARDS)
+ return NULL;
+ card = snd_card_new(index[dev], id[dev], THIS_MODULE, sizeof(usX2Ydev_t));
+ if (!card)
+ return NULL;
+ snd_usX2Y_card_used[usX2Y(card)->chip.index = dev] = 1;
+ card->private_free = snd_usX2Y_card_private_free;
+ usX2Y(card)->chip.dev = device;
+ usX2Y(card)->chip.card = card;
+ init_waitqueue_head(&usX2Y(card)->prepare_wait_queue);
+ init_MUTEX (&usX2Y(card)->prepare_mutex);
+ INIT_LIST_HEAD(&usX2Y(card)->chip.midi_list);
+ strcpy(card->driver, "USB "NAME_ALLCAPS"");
+ sprintf(card->shortname, "TASCAM "NAME_ALLCAPS"");
+ sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)",
+ card->shortname,
+ le16_to_cpu(device->descriptor.idVendor),
+ le16_to_cpu(device->descriptor.idProduct),
+ 0,//us428(card)->usbmidi.ifnum,
+ usX2Y(card)->chip.dev->bus->busnum, usX2Y(card)->chip.dev->devnum
+ );
+ snd_card_set_dev(card, &device->dev);
+ return card;
+}
+
+
+static void* usX2Y_usb_probe(struct usb_device* device, struct usb_interface *intf, const struct usb_device_id* device_id)
+{
+ int err;
+ snd_card_t* card;
+ if (le16_to_cpu(device->descriptor.idVendor) != 0x1604 ||
+ (le16_to_cpu(device->descriptor.idProduct) != USB_ID_US122 &&
+ le16_to_cpu(device->descriptor.idProduct) != USB_ID_US224 &&
+ le16_to_cpu(device->descriptor.idProduct) != USB_ID_US428) ||
+ !(card = usX2Y_create_card(device)))
+ return NULL;
+ if ((err = usX2Y_hwdep_new(card, device)) < 0 ||
+ (err = snd_card_register(card)) < 0) {
+ snd_card_free(card);
+ return NULL;
+ }
+ return card;
+}
+
+/*
+ * new 2.5 USB kernel API
+ */
+static int snd_usX2Y_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ void *chip;
+ chip = usX2Y_usb_probe(interface_to_usbdev(intf), intf, id);
+ if (chip) {
+ dev_set_drvdata(&intf->dev, chip);
+ return 0;
+ } else
+ return -EIO;
+}
+
+static void snd_usX2Y_disconnect(struct usb_interface *intf)
+{
+ usX2Y_usb_disconnect(interface_to_usbdev(intf),
+ dev_get_drvdata(&intf->dev));
+}
+
+MODULE_DEVICE_TABLE(usb, snd_usX2Y_usb_id_table);
+static struct usb_driver snd_usX2Y_usb_driver = {
+ .owner = THIS_MODULE,
+ .name = "snd-usb-usx2y",
+ .probe = snd_usX2Y_probe,
+ .disconnect = snd_usX2Y_disconnect,
+ .id_table = snd_usX2Y_usb_id_table,
+};
+
+static void snd_usX2Y_card_private_free(snd_card_t *card)
+{
+ kfree(usX2Y(card)->In04Buf);
+ usb_free_urb(usX2Y(card)->In04urb);
+ if (usX2Y(card)->us428ctls_sharedmem)
+ snd_free_pages(usX2Y(card)->us428ctls_sharedmem, sizeof(*usX2Y(card)->us428ctls_sharedmem));
+ if (usX2Y(card)->chip.index >= 0 && usX2Y(card)->chip.index < SNDRV_CARDS)
+ snd_usX2Y_card_used[usX2Y(card)->chip.index] = 0;
+}
+
+/*
+ * Frees the device.
+ */
+static void usX2Y_usb_disconnect(struct usb_device* device, void* ptr)
+{
+ if (ptr) {
+ usX2Ydev_t* usX2Y = usX2Y((snd_card_t*)ptr);
+ struct list_head* p;
+ if (usX2Y->chip_status == USX2Y_STAT_CHIP_HUP) // on 2.6.1 kernel snd_usbmidi_disconnect()
+ return; // calls us back. better leave :-) .
+ usX2Y->chip.shutdown = 1;
+ usX2Y->chip_status = USX2Y_STAT_CHIP_HUP;
+ usX2Y_unlinkSeq(&usX2Y->AS04);
+ usb_kill_urb(usX2Y->In04urb);
+ snd_card_disconnect((snd_card_t*)ptr);
+ /* release the midi resources */
+ list_for_each(p, &usX2Y->chip.midi_list) {
+ snd_usbmidi_disconnect(p, &snd_usX2Y_usb_driver);
+ }
+ if (usX2Y->us428ctls_sharedmem)
+ wake_up(&usX2Y->us428ctls_wait_queue_head);
+ snd_card_free_in_thread((snd_card_t*)ptr);
+ }
+}
+
+static int __init snd_usX2Y_module_init(void)
+{
+ return usb_register(&snd_usX2Y_usb_driver);
+}
+
+static void __exit snd_usX2Y_module_exit(void)
+{
+ usb_deregister(&snd_usX2Y_usb_driver);
+}
+
+module_init(snd_usX2Y_module_init)
+module_exit(snd_usX2Y_module_exit)
diff --git a/sound/usb/usx2y/usbusx2y.h b/sound/usb/usx2y/usbusx2y.h
new file mode 100644
index 0000000..f65f3a7
--- /dev/null
+++ b/sound/usb/usx2y/usbusx2y.h
@@ -0,0 +1,84 @@
+#ifndef USBUSX2Y_H
+#define USBUSX2Y_H
+#include "../usbaudio.h"
+#include "usbus428ctldefs.h"
+
+#define NRURBS 2
+
+
+#define URBS_AsyncSeq 10
+#define URB_DataLen_AsyncSeq 32
+typedef struct {
+ struct urb* urb[URBS_AsyncSeq];
+ char* buffer;
+} snd_usX2Y_AsyncSeq_t;
+
+typedef struct {
+ int submitted;
+ int len;
+ struct urb* urb[0];
+} snd_usX2Y_urbSeq_t;
+
+typedef struct snd_usX2Y_substream snd_usX2Y_substream_t;
+#include "usx2yhwdeppcm.h"
+
+typedef struct {
+ snd_usb_audio_t chip;
+ int stride;
+ struct urb *In04urb;
+ void *In04Buf;
+ char In04Last[24];
+ unsigned In04IntCalls;
+ snd_usX2Y_urbSeq_t *US04;
+ wait_queue_head_t In04WaitQueue;
+ snd_usX2Y_AsyncSeq_t AS04;
+ unsigned int rate,
+ format;
+ int chip_status;
+ struct semaphore prepare_mutex;
+ us428ctls_sharedmem_t *us428ctls_sharedmem;
+ int wait_iso_frame;
+ wait_queue_head_t us428ctls_wait_queue_head;
+ snd_usX2Y_hwdep_pcm_shm_t *hwdep_pcm_shm;
+ snd_usX2Y_substream_t *subs[4];
+ snd_usX2Y_substream_t * volatile prepare_subs;
+ wait_queue_head_t prepare_wait_queue;
+} usX2Ydev_t;
+
+
+struct snd_usX2Y_substream {
+ usX2Ydev_t *usX2Y;
+ snd_pcm_substream_t *pcm_substream;
+
+ int endpoint;
+ unsigned int maxpacksize; /* max packet size in bytes */
+
+ atomic_t state;
+#define state_STOPPED 0
+#define state_STARTING1 1
+#define state_STARTING2 2
+#define state_STARTING3 3
+#define state_PREPARED 4
+#define state_PRERUNNING 6
+#define state_RUNNING 8
+
+ int hwptr; /* free frame position in the buffer (only for playback) */
+ int hwptr_done; /* processed frame position in the buffer */
+ int transfer_done; /* processed frames since last period update */
+
+ struct urb *urb[NRURBS]; /* data urb table */
+ struct urb *completed_urb;
+ char *tmpbuf; /* temporary buffer for playback */
+};
+
+
+#define usX2Y(c) ((usX2Ydev_t*)(c)->private_data)
+
+int usX2Y_audio_create(snd_card_t* card);
+
+int usX2Y_AsyncSeq04_init(usX2Ydev_t* usX2Y);
+int usX2Y_In04_init(usX2Ydev_t* usX2Y);
+
+#define NAME_ALLCAPS "US-X2Y"
+
+#endif
diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c
new file mode 100644
index 0000000..4c292e0
--- /dev/null
+++ b/sound/usb/usx2y/usbusx2yaudio.c
@@ -0,0 +1,1026 @@
+/*
+ * US-X2Y AUDIO
+ * Copyright (c) 2002-2004 by Karsten Wiese
+ *
+ * based on
+ *
+ * (Tentative) USB Audio Driver for ALSA
+ *
+ * Main and PCM part
+ *
+ * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
+ *
+ * Many codes borrowed from audio.c by
+ * Alan Cox (alan@lxorguk.ukuu.org.uk)
+ * Thomas Sailer (sailer@ife.ee.ethz.ch)
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 <sound/driver.h>
+#include <linux/interrupt.h>
+#include <linux/usb.h>
+#include <sound/core.h>
+#include <sound/info.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include "usx2y.h"
+#include "usbusx2y.h"
+
+#define USX2Y_NRPACKS 4 /* Default value used for nr of packs per urb.
+ 1 to 4 have been tested ok on uhci.
+ To use 3 on ohci, you'd need a patch:
+ look for "0000425-linux-2.6.9-rc4-mm1_ohci-hcd.patch.gz" on
+ "https://bugtrack.alsa-project.org/alsa-bug/bug_view_page.php?bug_id=0000425"
+ .
+ 1, 2 and 4 work out of the box on ohci, if I recall correctly.
+ Bigger is safer operation,
+ smaller gives lower latencies.
+ */
+#define USX2Y_NRPACKS_VARIABLE y /* If your system works ok with this module's parameter
+ nrpacks set to 1, you might as well comment
+ this #define out, and thereby produce smaller, faster code.
+ You'd also set USX2Y_NRPACKS to 1 then.
+ */
+
+#ifdef USX2Y_NRPACKS_VARIABLE
+ static int nrpacks = USX2Y_NRPACKS; /* number of packets per urb */
+ #define nr_of_packs() nrpacks
+ module_param(nrpacks, int, 0444);
+ MODULE_PARM_DESC(nrpacks, "Number of packets per URB.");
+#else
+ #define nr_of_packs() USX2Y_NRPACKS
+#endif
+
+
+static int usX2Y_urb_capt_retire(snd_usX2Y_substream_t *subs)
+{
+ struct urb *urb = subs->completed_urb;
+ snd_pcm_runtime_t *runtime = subs->pcm_substream->runtime;
+ unsigned char *cp;
+ int i, len, lens = 0, hwptr_done = subs->hwptr_done;
+ usX2Ydev_t *usX2Y = subs->usX2Y;
+
+ for (i = 0; i < nr_of_packs(); i++) {
+ cp = (unsigned char*)urb->transfer_buffer + urb->iso_frame_desc[i].offset;
+ if (urb->iso_frame_desc[i].status) { /* active? hmm, skip this */
+ snd_printk("activ frame status %i. Most propably some hardware problem.\n", urb->iso_frame_desc[i].status);
+ return urb->iso_frame_desc[i].status;
+ }
+ len = urb->iso_frame_desc[i].actual_length / usX2Y->stride;
+ if (! len) {
+ snd_printd("0 == len ERROR!\n");
+ continue;
+ }
+
+ /* copy a data chunk */
+ if ((hwptr_done + len) > runtime->buffer_size) {
+ int cnt = runtime->buffer_size - hwptr_done;
+ int blen = cnt * usX2Y->stride;
+ memcpy(runtime->dma_area + hwptr_done * usX2Y->stride, cp, blen);
+ memcpy(runtime->dma_area, cp + blen, len * usX2Y->stride - blen);
+ } else {
+ memcpy(runtime->dma_area + hwptr_done * usX2Y->stride, cp, len * usX2Y->stride);
+ }
+ lens += len;
+ if ((hwptr_done += len) >= runtime->buffer_size)
+ hwptr_done -= runtime->buffer_size;
+ }
+
+ subs->hwptr_done = hwptr_done;
+ subs->transfer_done += lens;
+ /* update the pointer, call callback if necessary */
+ if (subs->transfer_done >= runtime->period_size) {
+ subs->transfer_done -= runtime->period_size;
+ snd_pcm_period_elapsed(subs->pcm_substream);
+ }
+ return 0;
+}
+/*
+ * prepare urb for playback data pipe
+ *
+ * we copy the data directly from the pcm buffer.
+ * the current position to be copied is held in hwptr field.
+ * since a urb can handle only a single linear buffer, if the total
+ * transferred area overflows the buffer boundary, we cannot send
+ * it directly from the buffer. thus the data is once copied to
+ * a temporary buffer and urb points to that.
+ */
+static int usX2Y_urb_play_prepare(snd_usX2Y_substream_t *subs,
+ struct urb *cap_urb,
+ struct urb *urb)
+{
+ int count, counts, pack;
+ usX2Ydev_t* usX2Y = subs->usX2Y;
+ snd_pcm_runtime_t *runtime = subs->pcm_substream->runtime;
+
+ count = 0;
+ for (pack = 0; pack < nr_of_packs(); pack++) {
+ /* calculate the size of a packet */
+ counts = cap_urb->iso_frame_desc[pack].actual_length / usX2Y->stride;
+ count += counts;
+ if (counts < 43 || counts > 50) {
+ snd_printk("should not be here with counts=%i\n", counts);
+ return -EPIPE;
+ }
+ /* set up descriptor */
+ urb->iso_frame_desc[pack].offset = pack ?
+ urb->iso_frame_desc[pack - 1].offset + urb->iso_frame_desc[pack - 1].length :
+ 0;
+ urb->iso_frame_desc[pack].length = cap_urb->iso_frame_desc[pack].actual_length;
+ }
+ if (atomic_read(&subs->state) >= state_PRERUNNING)
+ if (subs->hwptr + count > runtime->buffer_size) {
+ /* err, the transferred area goes over buffer boundary.
+ * copy the data to the temp buffer.
+ */
+ int len;
+ len = runtime->buffer_size - subs->hwptr;
+ urb->transfer_buffer = subs->tmpbuf;
+ memcpy(subs->tmpbuf, runtime->dma_area + subs->hwptr * usX2Y->stride, len * usX2Y->stride);
+ memcpy(subs->tmpbuf + len * usX2Y->stride, runtime->dma_area, (count - len) * usX2Y->stride);
+ subs->hwptr += count;
+ subs->hwptr -= runtime->buffer_size;
+ } else {
+ /* set the buffer pointer */
+ urb->transfer_buffer = runtime->dma_area + subs->hwptr * usX2Y->stride;
+ if ((subs->hwptr += count) >= runtime->buffer_size)
+ subs->hwptr -= runtime->buffer_size;
+ }
+ else
+ urb->transfer_buffer = subs->tmpbuf;
+ urb->transfer_buffer_length = count * usX2Y->stride;
+ return 0;
+}
+
+/*
+ * process after playback data complete
+ *
+ * update the current position and call callback if a period is processed.
+ */
+static void usX2Y_urb_play_retire(snd_usX2Y_substream_t *subs, struct urb *urb)
+{
+ snd_pcm_runtime_t *runtime = subs->pcm_substream->runtime;
+ int len = urb->actual_length / subs->usX2Y->stride;
+
+ subs->transfer_done += len;
+ subs->hwptr_done += len;
+ if (subs->hwptr_done >= runtime->buffer_size)
+ subs->hwptr_done -= runtime->buffer_size;
+ if (subs->transfer_done >= runtime->period_size) {
+ subs->transfer_done -= runtime->period_size;
+ snd_pcm_period_elapsed(subs->pcm_substream);
+ }
+}
+
+static int usX2Y_urb_submit(snd_usX2Y_substream_t *subs, struct urb *urb, int frame)
+{
+ int err;
+ if (!urb)
+ return -ENODEV;
+ urb->start_frame = (frame + NRURBS * nr_of_packs()); // let hcd do rollover sanity checks
+ urb->hcpriv = NULL;
+ urb->dev = subs->usX2Y->chip.dev; /* we need to set this at each time */
+ if ((err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
+ snd_printk("usb_submit_urb() returned %i\n", err);
+ return err;
+ }
+ return 0;
+}
+
+static inline int usX2Y_usbframe_complete(snd_usX2Y_substream_t *capsubs, snd_usX2Y_substream_t *playbacksubs, int frame)
+{
+ int err, state;
+ {
+ struct urb *urb = playbacksubs->completed_urb;
+
+ state = atomic_read(&playbacksubs->state);
+ if (NULL != urb) {
+ if (state == state_RUNNING)
+ usX2Y_urb_play_retire(playbacksubs, urb);
+ else
+ if (state >= state_PRERUNNING) {
+ atomic_inc(&playbacksubs->state);
+ }
+ } else {
+ switch (state) {
+ case state_STARTING1:
+ urb = playbacksubs->urb[0];
+ atomic_inc(&playbacksubs->state);
+ break;
+ case state_STARTING2:
+ urb = playbacksubs->urb[1];
+ atomic_inc(&playbacksubs->state);
+ break;
+ }
+ }
+ if (urb) {
+ if ((err = usX2Y_urb_play_prepare(playbacksubs, capsubs->completed_urb, urb)) ||
+ (err = usX2Y_urb_submit(playbacksubs, urb, frame))) {
+ return err;
+ }
+ }
+
+ playbacksubs->completed_urb = NULL;
+ }
+ state = atomic_read(&capsubs->state);
+ if (state >= state_PREPARED) {
+ if (state == state_RUNNING) {
+ if ((err = usX2Y_urb_capt_retire(capsubs)))
+ return err;
+ } else
+ if (state >= state_PRERUNNING) {
+ atomic_inc(&capsubs->state);
+ }
+ if ((err = usX2Y_urb_submit(capsubs, capsubs->completed_urb, frame)))
+ return err;
+ }
+ capsubs->completed_urb = NULL;
+ return 0;
+}
+
+
+static void usX2Y_clients_stop(usX2Ydev_t *usX2Y)
+{
+ int s, u;
+ for (s = 0; s < 4; s++) {
+ snd_usX2Y_substream_t *subs = usX2Y->subs[s];
+ if (subs) {
+ snd_printdd("%i %p state=%i\n", s, subs, atomic_read(&subs->state));
+ atomic_set(&subs->state, state_STOPPED);
+ }
+ }
+ for (s = 0; s < 4; s++) {
+ snd_usX2Y_substream_t *subs = usX2Y->subs[s];
+ if (subs) {
+ if (atomic_read(&subs->state) >= state_PRERUNNING) {
+ snd_pcm_stop(subs->pcm_substream, SNDRV_PCM_STATE_XRUN);
+ }
+ for (u = 0; u < NRURBS; u++) {
+ struct urb *urb = subs->urb[u];
+ if (NULL != urb)
+ snd_printdd("%i status=%i start_frame=%i\n", u, urb->status, urb->start_frame);
+ }
+ }
+ }
+ usX2Y->prepare_subs = NULL;
+ wake_up(&usX2Y->prepare_wait_queue);
+}
+
+static void usX2Y_error_urb_status(usX2Ydev_t *usX2Y, snd_usX2Y_substream_t *subs, struct urb *urb)
+{
+ snd_printk("ep=%i stalled with status=%i\n", subs->endpoint, urb->status);
+ urb->status = 0;
+ usX2Y_clients_stop(usX2Y);
+}
+
+static void usX2Y_error_sequence(usX2Ydev_t *usX2Y, snd_usX2Y_substream_t *subs, struct urb *urb)
+{
+ snd_printk("Sequence Error!(hcd_frame=%i ep=%i%s;wait=%i,frame=%i).\n"
+ "Most propably some urb of usb-frame %i is still missing.\n"
+ "Cause could be too long delays in usb-hcd interrupt handling.\n",
+ usb_get_current_frame_number(usX2Y->chip.dev),
+ subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", usX2Y->wait_iso_frame, urb->start_frame, usX2Y->wait_iso_frame);
+ usX2Y_clients_stop(usX2Y);
+}
+
+static void i_usX2Y_urb_complete(struct urb *urb, struct pt_regs *regs)
+{
+ snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t*)urb->context;
+ usX2Ydev_t *usX2Y = subs->usX2Y;
+
+ if (unlikely(atomic_read(&subs->state) < state_PREPARED)) {
+ snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n", usb_get_current_frame_number(usX2Y->chip.dev), subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", urb->status, urb->start_frame);
+ return;
+ }
+ if (unlikely(urb->status)) {
+ usX2Y_error_urb_status(usX2Y, subs, urb);
+ return;
+ }
+ if (likely((0xFFFF & urb->start_frame) == usX2Y->wait_iso_frame))
+ subs->completed_urb = urb;
+ else {
+ usX2Y_error_sequence(usX2Y, subs, urb);
+ return;
+ }
+ {
+ snd_usX2Y_substream_t *capsubs = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE],
+ *playbacksubs = usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
+ if (capsubs->completed_urb && atomic_read(&capsubs->state) >= state_PREPARED &&
+ (playbacksubs->completed_urb || atomic_read(&playbacksubs->state) < state_PREPARED)) {
+ if (!usX2Y_usbframe_complete(capsubs, playbacksubs, urb->start_frame)) {
+ if (nr_of_packs() <= urb->start_frame &&
+ urb->start_frame <= (2 * nr_of_packs() - 1)) // uhci and ohci
+ usX2Y->wait_iso_frame = urb->start_frame - nr_of_packs();
+ else
+ usX2Y->wait_iso_frame += nr_of_packs();
+ } else {
+ snd_printdd("\n");
+ usX2Y_clients_stop(usX2Y);
+ }
+ }
+ }
+}
+
+static void usX2Y_urbs_set_complete(usX2Ydev_t * usX2Y, void (*complete)(struct urb *, struct pt_regs *))
+{
+ int s, u;
+ for (s = 0; s < 4; s++) {
+ snd_usX2Y_substream_t *subs = usX2Y->subs[s];
+ if (NULL != subs)
+ for (u = 0; u < NRURBS; u++) {
+ struct urb * urb = subs->urb[u];
+ if (NULL != urb)
+ urb->complete = complete;
+ }
+ }
+}
+
+static void usX2Y_subs_startup_finish(usX2Ydev_t * usX2Y)
+{
+ usX2Y_urbs_set_complete(usX2Y, i_usX2Y_urb_complete);
+ usX2Y->prepare_subs = NULL;
+}
+
+static void i_usX2Y_subs_startup(struct urb *urb, struct pt_regs *regs)
+{
+ snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t*)urb->context;
+ usX2Ydev_t *usX2Y = subs->usX2Y;
+ snd_usX2Y_substream_t *prepare_subs = usX2Y->prepare_subs;
+ if (NULL != prepare_subs)
+ if (urb->start_frame == prepare_subs->urb[0]->start_frame) {
+ usX2Y_subs_startup_finish(usX2Y);
+ atomic_inc(&prepare_subs->state);
+ wake_up(&usX2Y->prepare_wait_queue);
+ }
+
+ i_usX2Y_urb_complete(urb, regs);
+}
+
+static void usX2Y_subs_prepare(snd_usX2Y_substream_t *subs)
+{
+ snd_printdd("usX2Y_substream_prepare(%p) ep=%i urb0=%p urb1=%p\n", subs, subs->endpoint, subs->urb[0], subs->urb[1]);
+ /* reset the pointer */
+ subs->hwptr = 0;
+ subs->hwptr_done = 0;
+ subs->transfer_done = 0;
+}
+
+
+static void usX2Y_urb_release(struct urb** urb, int free_tb)
+{
+ if (*urb) {
+ usb_kill_urb(*urb);
+ if (free_tb)
+ kfree((*urb)->transfer_buffer);
+ usb_free_urb(*urb);
+ *urb = NULL;
+ }
+}
+/*
+ * release a substreams urbs
+ */
+static void usX2Y_urbs_release(snd_usX2Y_substream_t *subs)
+{
+ int i;
+ snd_printdd("usX2Y_urbs_release() %i\n", subs->endpoint);
+ for (i = 0; i < NRURBS; i++)
+ usX2Y_urb_release(subs->urb + i, subs != subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]);
+
+ if (subs->tmpbuf) {
+ kfree(subs->tmpbuf);
+ subs->tmpbuf = NULL;
+ }
+}
+/*
+ * initialize a substream's urbs
+ */
+static int usX2Y_urbs_allocate(snd_usX2Y_substream_t *subs)
+{
+ int i;
+ unsigned int pipe;
+ int is_playback = subs == subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
+ struct usb_device *dev = subs->usX2Y->chip.dev;
+
+ pipe = is_playback ? usb_sndisocpipe(dev, subs->endpoint) :
+ usb_rcvisocpipe(dev, subs->endpoint);
+ subs->maxpacksize = usb_maxpacket(dev, pipe, is_playback);
+ if (!subs->maxpacksize)
+ return -EINVAL;
+
+ if (is_playback && NULL == subs->tmpbuf) { /* allocate a temporary buffer for playback */
+ subs->tmpbuf = kcalloc(nr_of_packs(), subs->maxpacksize, GFP_KERNEL);
+ if (NULL == subs->tmpbuf) {
+ snd_printk(KERN_ERR "cannot malloc tmpbuf\n");
+ return -ENOMEM;
+ }
+ }
+ /* allocate and initialize data urbs */
+ for (i = 0; i < NRURBS; i++) {
+ struct urb** purb = subs->urb + i;
+ if (*purb) {
+ usb_kill_urb(*purb);
+ continue;
+ }
+ *purb = usb_alloc_urb(nr_of_packs(), GFP_KERNEL);
+ if (NULL == *purb) {
+ usX2Y_urbs_release(subs);
+ return -ENOMEM;
+ }
+ if (!is_playback && !(*purb)->transfer_buffer) {
+ /* allocate a capture buffer per urb */
+ (*purb)->transfer_buffer = kmalloc(subs->maxpacksize * nr_of_packs(), GFP_KERNEL);
+ if (NULL == (*purb)->transfer_buffer) {
+ usX2Y_urbs_release(subs);
+ return -ENOMEM;
+ }
+ }
+ (*purb)->dev = dev;
+ (*purb)->pipe = pipe;
+ (*purb)->number_of_packets = nr_of_packs();
+ (*purb)->context = subs;
+ (*purb)->interval = 1;
+ (*purb)->complete = i_usX2Y_subs_startup;
+ }
+ return 0;
+}
+
+static void usX2Y_subs_startup(snd_usX2Y_substream_t *subs)
+{
+ usX2Ydev_t *usX2Y = subs->usX2Y;
+ usX2Y->prepare_subs = subs;
+ subs->urb[0]->start_frame = -1;
+ wmb();
+ usX2Y_urbs_set_complete(usX2Y, i_usX2Y_subs_startup);
+}
+
+static int usX2Y_urbs_start(snd_usX2Y_substream_t *subs)
+{
+ int i, err;
+ usX2Ydev_t *usX2Y = subs->usX2Y;
+
+ if ((err = usX2Y_urbs_allocate(subs)) < 0)
+ return err;
+ subs->completed_urb = NULL;
+ for (i = 0; i < 4; i++) {
+ snd_usX2Y_substream_t *subs = usX2Y->subs[i];
+ if (subs != NULL && atomic_read(&subs->state) >= state_PREPARED)
+ goto start;
+ }
+ usX2Y->wait_iso_frame = -1;
+ start:
+ {
+ usX2Y_subs_startup(subs);
+ for (i = 0; i < NRURBS; i++) {
+ struct urb *urb = subs->urb[i];
+ if (usb_pipein(urb->pipe)) {
+ unsigned long pack;
+ if (0 == i)
+ atomic_set(&subs->state, state_STARTING3);
+ urb->dev = usX2Y->chip.dev;
+ urb->transfer_flags = URB_ISO_ASAP;
+ for (pack = 0; pack < nr_of_packs(); pack++) {
+ urb->iso_frame_desc[pack].offset = subs->maxpacksize * pack;
+ urb->iso_frame_desc[pack].length = subs->maxpacksize;
+ }
+ urb->transfer_buffer_length = subs->maxpacksize * nr_of_packs();
+ if ((err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
+ snd_printk (KERN_ERR "cannot submit datapipe for urb %d, err = %d\n", i, err);
+ err = -EPIPE;
+ goto cleanup;
+ } else {
+ if (0 > usX2Y->wait_iso_frame)
+ usX2Y->wait_iso_frame = urb->start_frame;
+ }
+ urb->transfer_flags = 0;
+ } else {
+ atomic_set(&subs->state, state_STARTING1);
+ break;
+ }
+ }
+ err = 0;
+ wait_event(usX2Y->prepare_wait_queue, NULL == usX2Y->prepare_subs);
+ if (atomic_read(&subs->state) != state_PREPARED) {
+ err = -EPIPE;
+ }
+
+ cleanup:
+ if (err) {
+ usX2Y_subs_startup_finish(usX2Y);
+ usX2Y_clients_stop(usX2Y); // something is completely wroong > stop evrything
+ }
+ }
+ return err;
+}
+
+/*
+ * return the current pcm pointer. just return the hwptr_done value.
+ */
+static snd_pcm_uframes_t snd_usX2Y_pcm_pointer(snd_pcm_substream_t *substream)
+{
+ snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)substream->runtime->private_data;
+ return subs->hwptr_done;
+}
+/*
+ * start/stop substream
+ */
+static int snd_usX2Y_pcm_trigger(snd_pcm_substream_t *substream, int cmd)
+{
+ snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)substream->runtime->private_data;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ snd_printdd("snd_usX2Y_pcm_trigger(START)\n");
+ if (atomic_read(&subs->state) == state_PREPARED &&
+ atomic_read(&subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]->state) >= state_PREPARED) {
+ atomic_set(&subs->state, state_PRERUNNING);
+ } else {
+ snd_printdd("\n");
+ return -EPIPE;
+ }
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ snd_printdd("snd_usX2Y_pcm_trigger(STOP)\n");
+ if (atomic_read(&subs->state) >= state_PRERUNNING)
+ atomic_set(&subs->state, state_PREPARED);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+
+/*
+ * allocate a buffer, setup samplerate
+ *
+ * so far we use a physically linear buffer although packetize transfer
+ * doesn't need a continuous area.
+ * if sg buffer is supported on the later version of alsa, we'll follow
+ * that.
+ */
+static struct s_c2
+{
+ char c1, c2;
+}
+ SetRate44100[] =
+{
+ { 0x14, 0x08}, // this line sets 44100, well actually a little less
+ { 0x18, 0x40}, // only tascam / frontier design knows the further lines .......
+ { 0x18, 0x42},
+ { 0x18, 0x45},
+ { 0x18, 0x46},
+ { 0x18, 0x48},
+ { 0x18, 0x4A},
+ { 0x18, 0x4C},
+ { 0x18, 0x4E},
+ { 0x18, 0x50},
+ { 0x18, 0x52},
+ { 0x18, 0x54},
+ { 0x18, 0x56},
+ { 0x18, 0x58},
+ { 0x18, 0x5A},
+ { 0x18, 0x5C},
+ { 0x18, 0x5E},
+ { 0x18, 0x60},
+ { 0x18, 0x62},
+ { 0x18, 0x64},
+ { 0x18, 0x66},
+ { 0x18, 0x68},
+ { 0x18, 0x6A},
+ { 0x18, 0x6C},
+ { 0x18, 0x6E},
+ { 0x18, 0x70},
+ { 0x18, 0x72},
+ { 0x18, 0x74},
+ { 0x18, 0x76},
+ { 0x18, 0x78},
+ { 0x18, 0x7A},
+ { 0x18, 0x7C},
+ { 0x18, 0x7E}
+};
+static struct s_c2 SetRate48000[] =
+{
+ { 0x14, 0x09}, // this line sets 48000, well actually a little less
+ { 0x18, 0x40}, // only tascam / frontier design knows the further lines .......
+ { 0x18, 0x42},
+ { 0x18, 0x45},
+ { 0x18, 0x46},
+ { 0x18, 0x48},
+ { 0x18, 0x4A},
+ { 0x18, 0x4C},
+ { 0x18, 0x4E},
+ { 0x18, 0x50},
+ { 0x18, 0x52},
+ { 0x18, 0x54},
+ { 0x18, 0x56},
+ { 0x18, 0x58},
+ { 0x18, 0x5A},
+ { 0x18, 0x5C},
+ { 0x18, 0x5E},
+ { 0x18, 0x60},
+ { 0x18, 0x62},
+ { 0x18, 0x64},
+ { 0x18, 0x66},
+ { 0x18, 0x68},
+ { 0x18, 0x6A},
+ { 0x18, 0x6C},
+ { 0x18, 0x6E},
+ { 0x18, 0x70},
+ { 0x18, 0x73},
+ { 0x18, 0x74},
+ { 0x18, 0x76},
+ { 0x18, 0x78},
+ { 0x18, 0x7A},
+ { 0x18, 0x7C},
+ { 0x18, 0x7E}
+};
+#define NOOF_SETRATE_URBS ARRAY_SIZE(SetRate48000)
+
+static void i_usX2Y_04Int(struct urb* urb, struct pt_regs *regs)
+{
+ usX2Ydev_t* usX2Y = urb->context;
+
+ if (urb->status) {
+ snd_printk("snd_usX2Y_04Int() urb->status=%i\n", urb->status);
+ }
+ if (0 == --usX2Y->US04->len)
+ wake_up(&usX2Y->In04WaitQueue);
+}
+
+static int usX2Y_rate_set(usX2Ydev_t *usX2Y, int rate)
+{
+ int err = 0, i;
+ snd_usX2Y_urbSeq_t *us = NULL;
+ int *usbdata = NULL;
+ struct s_c2 *ra = rate == 48000 ? SetRate48000 : SetRate44100;
+
+ if (usX2Y->rate != rate) {
+ us = kmalloc(sizeof(*us) + sizeof(struct urb*) * NOOF_SETRATE_URBS, GFP_KERNEL);
+ if (NULL == us) {
+ err = -ENOMEM;
+ goto cleanup;
+ }
+ memset(us, 0, sizeof(*us) + sizeof(struct urb*) * NOOF_SETRATE_URBS);
+ usbdata = kmalloc(sizeof(int)*NOOF_SETRATE_URBS, GFP_KERNEL);
+ if (NULL == usbdata) {
+ err = -ENOMEM;
+ goto cleanup;
+ }
+ for (i = 0; i < NOOF_SETRATE_URBS; ++i) {
+ if (NULL == (us->urb[i] = usb_alloc_urb(0, GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto cleanup;
+ }
+ ((char*)(usbdata + i))[0] = ra[i].c1;
+ ((char*)(usbdata + i))[1] = ra[i].c2;
+ usb_fill_bulk_urb(us->urb[i], usX2Y->chip.dev, usb_sndbulkpipe(usX2Y->chip.dev, 4),
+ usbdata + i, 2, i_usX2Y_04Int, usX2Y);
+#ifdef OLD_USB
+ us->urb[i]->transfer_flags = USB_QUEUE_BULK;
+#endif
+ }
+ us->submitted = 0;
+ us->len = NOOF_SETRATE_URBS;
+ usX2Y->US04 = us;
+ wait_event_timeout(usX2Y->In04WaitQueue, 0 == us->len, HZ);
+ usX2Y->US04 = NULL;
+ if (us->len)
+ err = -ENODEV;
+ cleanup:
+ if (us) {
+ us->submitted = 2*NOOF_SETRATE_URBS;
+ for (i = 0; i < NOOF_SETRATE_URBS; ++i) {
+ struct urb *urb = us->urb[i];
+ if (urb->status) {
+ if (!err)
+ err = -ENODEV;
+ usb_kill_urb(urb);
+ }
+ usb_free_urb(urb);
+ }
+ usX2Y->US04 = NULL;
+ kfree(usbdata);
+ kfree(us);
+ if (!err) {
+ usX2Y->rate = rate;
+ }
+ }
+ }
+
+ return err;
+}
+
+
+static int usX2Y_format_set(usX2Ydev_t *usX2Y, snd_pcm_format_t format)
+{
+ int alternate, err;
+ struct list_head* p;
+ if (format == SNDRV_PCM_FORMAT_S24_3LE) {
+ alternate = 2;
+ usX2Y->stride = 6;
+ } else {
+ alternate = 1;
+ usX2Y->stride = 4;
+ }
+ list_for_each(p, &usX2Y->chip.midi_list) {
+ snd_usbmidi_input_stop(p);
+ }
+ usb_kill_urb(usX2Y->In04urb);
+ if ((err = usb_set_interface(usX2Y->chip.dev, 0, alternate))) {
+ snd_printk("usb_set_interface error \n");
+ return err;
+ }
+ usX2Y->In04urb->dev = usX2Y->chip.dev;
+ err = usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
+ list_for_each(p, &usX2Y->chip.midi_list) {
+ snd_usbmidi_input_start(p);
+ }
+ usX2Y->format = format;
+ usX2Y->rate = 0;
+ return err;
+}
+
+
+static int snd_usX2Y_pcm_hw_params(snd_pcm_substream_t *substream,
+ snd_pcm_hw_params_t *hw_params)
+{
+ int err = 0;
+ unsigned int rate = params_rate(hw_params);
+ snd_pcm_format_t format = params_format(hw_params);
+ snd_printdd("snd_usX2Y_hw_params(%p, %p)\n", substream, hw_params);
+
+ { // all pcm substreams off one usX2Y have to operate at the same rate & format
+ snd_card_t *card = substream->pstr->pcm->card;
+ struct list_head *list;
+ list_for_each(list, &card->devices) {
+ snd_device_t *dev;
+ snd_pcm_t *pcm;
+ int s;
+ dev = snd_device(list);
+ if (dev->type != SNDRV_DEV_PCM)
+ continue;
+ pcm = dev->device_data;
+ for (s = 0; s < 2; ++s) {
+ snd_pcm_substream_t *test_substream;
+ test_substream = pcm->streams[s].substream;
+ if (test_substream && test_substream != substream &&
+ test_substream->runtime &&
+ ((test_substream->runtime->format &&
+ test_substream->runtime->format != format) ||
+ (test_substream->runtime->rate &&
+ test_substream->runtime->rate != rate)))
+ return -EINVAL;
+ }
+ }
+ }
+ if (0 > (err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)))) {
+ snd_printk("snd_pcm_lib_malloc_pages(%p, %i) returned %i\n", substream, params_buffer_bytes(hw_params), err);
+ return err;
+ }
+ return 0;
+}
+
+/*
+ * free the buffer
+ */
+static int snd_usX2Y_pcm_hw_free(snd_pcm_substream_t *substream)
+{
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)runtime->private_data;
+ down(&subs->usX2Y->prepare_mutex);
+ snd_printdd("snd_usX2Y_hw_free(%p)\n", substream);
+
+ if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) {
+ snd_usX2Y_substream_t *cap_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
+ atomic_set(&subs->state, state_STOPPED);
+ usX2Y_urbs_release(subs);
+ if (!cap_subs->pcm_substream ||
+ !cap_subs->pcm_substream->runtime ||
+ !cap_subs->pcm_substream->runtime->status ||
+ cap_subs->pcm_substream->runtime->status->state < SNDRV_PCM_STATE_PREPARED) {
+ atomic_set(&cap_subs->state, state_STOPPED);
+ usX2Y_urbs_release(cap_subs);
+ }
+ } else {
+ snd_usX2Y_substream_t *playback_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
+ if (atomic_read(&playback_subs->state) < state_PREPARED) {
+ atomic_set(&subs->state, state_STOPPED);
+ usX2Y_urbs_release(subs);
+ }
+ }
+ up(&subs->usX2Y->prepare_mutex);
+ return snd_pcm_lib_free_pages(substream);
+}
+/*
+ * prepare callback
+ *
+ * set format and initialize urbs
+ */
+static int snd_usX2Y_pcm_prepare(snd_pcm_substream_t *substream)
+{
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)runtime->private_data;
+ usX2Ydev_t *usX2Y = subs->usX2Y;
+ snd_usX2Y_substream_t *capsubs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
+ int err = 0;
+ snd_printdd("snd_usX2Y_pcm_prepare(%p)\n", substream);
+
+ down(&usX2Y->prepare_mutex);
+ usX2Y_subs_prepare(subs);
+// Start hardware streams
+// SyncStream first....
+ if (atomic_read(&capsubs->state) < state_PREPARED) {
+ if (usX2Y->format != runtime->format)
+ if ((err = usX2Y_format_set(usX2Y, runtime->format)) < 0)
+ goto up_prepare_mutex;
+ if (usX2Y->rate != runtime->rate)
+ if ((err = usX2Y_rate_set(usX2Y, runtime->rate)) < 0)
+ goto up_prepare_mutex;
+ snd_printdd("starting capture pipe for %s\n", subs == capsubs ? "self" : "playpipe");
+ if (0 > (err = usX2Y_urbs_start(capsubs)))
+ goto up_prepare_mutex;
+ }
+
+ if (subs != capsubs && atomic_read(&subs->state) < state_PREPARED)
+ err = usX2Y_urbs_start(subs);
+
+ up_prepare_mutex:
+ up(&usX2Y->prepare_mutex);
+ return err;
+}
+
+static snd_pcm_hardware_t snd_usX2Y_2c =
+{
+ .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP_VALID),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_3LE,
+ .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
+ .rate_min = 44100,
+ .rate_max = 48000,
+ .channels_min = 2,
+ .channels_max = 2,
+ .buffer_bytes_max = (2*128*1024),
+ .period_bytes_min = 64,
+ .period_bytes_max = (128*1024),
+ .periods_min = 2,
+ .periods_max = 1024,
+ .fifo_size = 0
+};
+
+
+
+static int snd_usX2Y_pcm_open(snd_pcm_substream_t *substream)
+{
+ snd_usX2Y_substream_t *subs = ((snd_usX2Y_substream_t **)
+ snd_pcm_substream_chip(substream))[substream->stream];
+ snd_pcm_runtime_t *runtime = substream->runtime;
+
+ if (subs->usX2Y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS)
+ return -EBUSY;
+
+ runtime->hw = snd_usX2Y_2c;
+ runtime->private_data = subs;
+ subs->pcm_substream = substream;
+ snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 1000, 200000);
+ return 0;
+}
+
+
+
+static int snd_usX2Y_pcm_close(snd_pcm_substream_t *substream)
+{
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)runtime->private_data;
+ int err = 0;
+
+ subs->pcm_substream = NULL;
+
+ return err;
+}
+
+
+static snd_pcm_ops_t snd_usX2Y_pcm_ops =
+{
+ .open = snd_usX2Y_pcm_open,
+ .close = snd_usX2Y_pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_usX2Y_pcm_hw_params,
+ .hw_free = snd_usX2Y_pcm_hw_free,
+ .prepare = snd_usX2Y_pcm_prepare,
+ .trigger = snd_usX2Y_pcm_trigger,
+ .pointer = snd_usX2Y_pcm_pointer,
+};
+
+
+/*
+ * free a usb stream instance
+ */
+static void usX2Y_audio_stream_free(snd_usX2Y_substream_t **usX2Y_substream)
+{
+ if (NULL != usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]) {
+ kfree(usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]);
+ usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK] = NULL;
+ }
+ kfree(usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE]);
+ usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE] = NULL;
+}
+
+static void snd_usX2Y_pcm_private_free(snd_pcm_t *pcm)
+{
+ snd_usX2Y_substream_t **usX2Y_stream = pcm->private_data;
+ if (usX2Y_stream) {
+ snd_pcm_lib_preallocate_free_for_all(pcm);
+ usX2Y_audio_stream_free(usX2Y_stream);
+ }
+}
+
+static int usX2Y_audio_stream_new(snd_card_t *card, int playback_endpoint, int capture_endpoint)
+{
+ snd_pcm_t *pcm;
+ int err, i;
+ snd_usX2Y_substream_t **usX2Y_substream =
+ usX2Y(card)->subs + 2 * usX2Y(card)->chip.pcm_devs;
+
+ for (i = playback_endpoint ? SNDRV_PCM_STREAM_PLAYBACK : SNDRV_PCM_STREAM_CAPTURE;
+ i <= SNDRV_PCM_STREAM_CAPTURE; ++i) {
+ usX2Y_substream[i] = kcalloc(1, sizeof(snd_usX2Y_substream_t), GFP_KERNEL);
+ if (NULL == usX2Y_substream[i]) {
+ snd_printk(KERN_ERR "cannot malloc\n");
+ return -ENOMEM;
+ }
+ usX2Y_substream[i]->usX2Y = usX2Y(card);
+ }
+
+ if (playback_endpoint)
+ usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]->endpoint = playback_endpoint;
+ usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE]->endpoint = capture_endpoint;
+
+ err = snd_pcm_new(card, NAME_ALLCAPS" Audio", usX2Y(card)->chip.pcm_devs,
+ playback_endpoint ? 1 : 0, 1,
+ &pcm);
+ if (err < 0) {
+ usX2Y_audio_stream_free(usX2Y_substream);
+ return err;
+ }
+
+ if (playback_endpoint)
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_usX2Y_pcm_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_usX2Y_pcm_ops);
+
+ pcm->private_data = usX2Y_substream;
+ pcm->private_free = snd_usX2Y_pcm_private_free;
+ pcm->info_flags = 0;
+
+ sprintf(pcm->name, NAME_ALLCAPS" Audio #%d", usX2Y(card)->chip.pcm_devs);
+
+ if ((playback_endpoint &&
+ 0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream,
+ SNDRV_DMA_TYPE_CONTINUOUS,
+ snd_dma_continuous_data(GFP_KERNEL),
+ 64*1024, 128*1024))) ||
+ 0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
+ SNDRV_DMA_TYPE_CONTINUOUS,
+ snd_dma_continuous_data(GFP_KERNEL),
+ 64*1024, 128*1024))) {
+ snd_usX2Y_pcm_private_free(pcm);
+ return err;
+ }
+ usX2Y(card)->chip.pcm_devs++;
+
+ return 0;
+}
+
+/*
+ * create a chip instance and set its names.
+ */
+int usX2Y_audio_create(snd_card_t* card)
+{
+ int err = 0;
+
+ INIT_LIST_HEAD(&usX2Y(card)->chip.pcm_list);
+
+ if (0 > (err = usX2Y_audio_stream_new(card, 0xA, 0x8)))
+ return err;
+ if (le16_to_cpu(usX2Y(card)->chip.dev->descriptor.idProduct) == USB_ID_US428)
+ if (0 > (err = usX2Y_audio_stream_new(card, 0, 0xA)))
+ return err;
+ if (le16_to_cpu(usX2Y(card)->chip.dev->descriptor.idProduct) != USB_ID_US122)
+ err = usX2Y_rate_set(usX2Y(card), 44100); // Lets us428 recognize output-volume settings, disturbs us122.
+ return err;
+}
diff --git a/sound/usb/usx2y/usx2y.h b/sound/usb/usx2y/usx2y.h
new file mode 100644
index 0000000..7e59263
--- /dev/null
+++ b/sound/usb/usx2y/usx2y.h
@@ -0,0 +1,51 @@
+/*
+ * Driver for Tascam US-X2Y USB soundcards
+ *
+ * Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de>
+ *
+ * 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 __SOUND_USX2Y_COMMON_H
+#define __SOUND_USX2Y_COMMON_H
+
+
+#define USX2Y_DRIVER_VERSION 0x0100 /* 0.1.0 */
+
+
+/* hwdep id string */
+#define SND_USX2Y_LOADER_ID "USX2Y Loader"
+#define SND_USX2Y_USBPCM_ID "USX2Y USBPCM"
+
+/* hardware type */
+enum {
+ USX2Y_TYPE_122,
+ USX2Y_TYPE_224,
+ USX2Y_TYPE_428,
+ USX2Y_TYPE_NUMS
+};
+
+#define USB_ID_US122 0x8007
+#define USB_ID_US224 0x8005
+#define USB_ID_US428 0x8001
+
+/* chip status */
+enum {
+ USX2Y_STAT_CHIP_INIT = (1 << 0), /* all operational */
+ USX2Y_STAT_CHIP_MMAP_PCM_URBS = (1 << 1), /* pcm transport over mmaped urbs */
+ USX2Y_STAT_CHIP_HUP = (1 << 31), /* all operational */
+};
+
+#endif /* __SOUND_USX2Y_COMMON_H */
diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c
new file mode 100644
index 0000000..bb2c8e9
--- /dev/null
+++ b/sound/usb/usx2y/usx2yhwdeppcm.c
@@ -0,0 +1,807 @@
+/*
+ * 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
+ */
+
+/* USX2Y "rawusb" aka hwdep_pcm implementation
+
+ Its usb's unableness to atomically handle power of 2 period sized data chuncs
+ at standard samplerates,
+ what led to this part of the usx2y module:
+ It provides the alsa kernel half of the usx2y-alsa-jack driver pair.
+ The pair uses a hardware dependant alsa-device for mmaped pcm transport.
+ Advantage achieved:
+ The usb_hc moves pcm data from/into memory via DMA.
+ That memory is mmaped by jack's usx2y driver.
+ Jack's usx2y driver is the first/last to read/write pcm data.
+ Read/write is a combination of power of 2 period shaping and
+ float/int conversation.
+ Compared to mainline alsa/jack we leave out power of 2 period shaping inside
+ snd-usb-usx2y which needs memcpy() and additional buffers.
+ As a side effect possible unwanted pcm-data coruption resulting of
+ standard alsa's snd-usb-usx2y period shaping scheme falls away.
+ Result is sane jack operation at buffering schemes down to 128frames,
+ 2 periods.
+ plain usx2y alsa mode is able to achieve 64frames, 4periods, but only at the
+ cost of easier triggered i.e. aeolus xruns (128 or 256frames,
+ 2periods works but is useless cause of crackling).
+
+ This is a first "proof of concept" implementation.
+ Later, funcionalities should migrate to more apropriate places:
+ Userland:
+ - The jackd could mmap its float-pcm buffers directly from alsa-lib.
+ - alsa-lib could provide power of 2 period sized shaping combined with int/float
+ conversation.
+ Currently the usx2y jack driver provides above 2 services.
+ Kernel:
+ - rawusb dma pcm buffer transport should go to snd-usb-lib, so also snd-usb-audio
+ devices can use it.
+ Currently rawusb dma pcm buffer transport (this file) is only available to snd-usb-usx2y.
+*/
+
+#include "usbusx2yaudio.c"
+
+#if defined(USX2Y_NRPACKS_VARIABLE) || (!defined(USX2Y_NRPACKS_VARIABLE) && USX2Y_NRPACKS == 1)
+
+#include <sound/hwdep.h>
+
+
+static int usX2Y_usbpcm_urb_capt_retire(snd_usX2Y_substream_t *subs)
+{
+ struct urb *urb = subs->completed_urb;
+ snd_pcm_runtime_t *runtime = subs->pcm_substream->runtime;
+ int i, lens = 0, hwptr_done = subs->hwptr_done;
+ usX2Ydev_t *usX2Y = subs->usX2Y;
+ if (0 > usX2Y->hwdep_pcm_shm->capture_iso_start) { //FIXME
+ int head = usX2Y->hwdep_pcm_shm->captured_iso_head + 1;
+ if (head >= ARRAY_SIZE(usX2Y->hwdep_pcm_shm->captured_iso))
+ head = 0;
+ usX2Y->hwdep_pcm_shm->capture_iso_start = head;
+ snd_printdd("cap start %i\n", head);
+ }
+ for (i = 0; i < nr_of_packs(); i++) {
+ if (urb->iso_frame_desc[i].status) { /* active? hmm, skip this */
+ snd_printk("activ frame status %i. Most propably some hardware problem.\n", urb->iso_frame_desc[i].status);
+ return urb->iso_frame_desc[i].status;
+ }
+ lens += urb->iso_frame_desc[i].actual_length / usX2Y->stride;
+ }
+ if ((hwptr_done += lens) >= runtime->buffer_size)
+ hwptr_done -= runtime->buffer_size;
+ subs->hwptr_done = hwptr_done;
+ subs->transfer_done += lens;
+ /* update the pointer, call callback if necessary */
+ if (subs->transfer_done >= runtime->period_size) {
+ subs->transfer_done -= runtime->period_size;
+ snd_pcm_period_elapsed(subs->pcm_substream);
+ }
+ return 0;
+}
+
+static inline int usX2Y_iso_frames_per_buffer(snd_pcm_runtime_t *runtime, usX2Ydev_t * usX2Y)
+{
+ return (runtime->buffer_size * 1000) / usX2Y->rate + 1; //FIXME: so far only correct period_size == 2^x ?
+}
+
+/*
+ * prepare urb for playback data pipe
+ *
+ * we copy the data directly from the pcm buffer.
+ * the current position to be copied is held in hwptr field.
+ * since a urb can handle only a single linear buffer, if the total
+ * transferred area overflows the buffer boundary, we cannot send
+ * it directly from the buffer. thus the data is once copied to
+ * a temporary buffer and urb points to that.
+ */
+static int usX2Y_hwdep_urb_play_prepare(snd_usX2Y_substream_t *subs,
+ struct urb *urb)
+{
+ int count, counts, pack;
+ usX2Ydev_t *usX2Y = subs->usX2Y;
+ struct snd_usX2Y_hwdep_pcm_shm *shm = usX2Y->hwdep_pcm_shm;
+ snd_pcm_runtime_t *runtime = subs->pcm_substream->runtime;
+
+ if (0 > shm->playback_iso_start) {
+ shm->playback_iso_start = shm->captured_iso_head -
+ usX2Y_iso_frames_per_buffer(runtime, usX2Y);
+ if (0 > shm->playback_iso_start)
+ shm->playback_iso_start += ARRAY_SIZE(shm->captured_iso);
+ shm->playback_iso_head = shm->playback_iso_start;
+ }
+
+ count = 0;
+ for (pack = 0; pack < nr_of_packs(); pack++) {
+ /* calculate the size of a packet */
+ counts = shm->captured_iso[shm->playback_iso_head].length / usX2Y->stride;
+ if (counts < 43 || counts > 50) {
+ snd_printk("should not be here with counts=%i\n", counts);
+ return -EPIPE;
+ }
+ /* set up descriptor */
+ urb->iso_frame_desc[pack].offset = shm->captured_iso[shm->playback_iso_head].offset;
+ urb->iso_frame_desc[pack].length = shm->captured_iso[shm->playback_iso_head].length;
+ if (atomic_read(&subs->state) != state_RUNNING)
+ memset((char *)urb->transfer_buffer + urb->iso_frame_desc[pack].offset, 0,
+ urb->iso_frame_desc[pack].length);
+ if (++shm->playback_iso_head >= ARRAY_SIZE(shm->captured_iso))
+ shm->playback_iso_head = 0;
+ count += counts;
+ }
+ urb->transfer_buffer_length = count * usX2Y->stride;
+ return 0;
+}
+
+
+static inline void usX2Y_usbpcm_urb_capt_iso_advance(snd_usX2Y_substream_t *subs, struct urb *urb)
+{
+ int pack;
+ for (pack = 0; pack < nr_of_packs(); ++pack) {
+ struct usb_iso_packet_descriptor *desc = urb->iso_frame_desc + pack;
+ if (NULL != subs) {
+ snd_usX2Y_hwdep_pcm_shm_t *shm = subs->usX2Y->hwdep_pcm_shm;
+ int head = shm->captured_iso_head + 1;
+ if (head >= ARRAY_SIZE(shm->captured_iso))
+ head = 0;
+ shm->captured_iso[head].frame = urb->start_frame + pack;
+ shm->captured_iso[head].offset = desc->offset;
+ shm->captured_iso[head].length = desc->actual_length;
+ shm->captured_iso_head = head;
+ shm->captured_iso_frames++;
+ }
+ if ((desc->offset += desc->length * NRURBS*nr_of_packs()) +
+ desc->length >= SSS)
+ desc->offset -= (SSS - desc->length);
+ }
+}
+
+static inline int usX2Y_usbpcm_usbframe_complete(snd_usX2Y_substream_t *capsubs,
+ snd_usX2Y_substream_t *capsubs2,
+ snd_usX2Y_substream_t *playbacksubs, int frame)
+{
+ int err, state;
+ struct urb *urb = playbacksubs->completed_urb;
+
+ state = atomic_read(&playbacksubs->state);
+ if (NULL != urb) {
+ if (state == state_RUNNING)
+ usX2Y_urb_play_retire(playbacksubs, urb);
+ else
+ if (state >= state_PRERUNNING) {
+ atomic_inc(&playbacksubs->state);
+ }
+ } else {
+ switch (state) {
+ case state_STARTING1:
+ urb = playbacksubs->urb[0];
+ atomic_inc(&playbacksubs->state);
+ break;
+ case state_STARTING2:
+ urb = playbacksubs->urb[1];
+ atomic_inc(&playbacksubs->state);
+ break;
+ }
+ }
+ if (urb) {
+ if ((err = usX2Y_hwdep_urb_play_prepare(playbacksubs, urb)) ||
+ (err = usX2Y_urb_submit(playbacksubs, urb, frame))) {
+ return err;
+ }
+ }
+
+ playbacksubs->completed_urb = NULL;
+
+ state = atomic_read(&capsubs->state);
+ if (state >= state_PREPARED) {
+ if (state == state_RUNNING) {
+ if ((err = usX2Y_usbpcm_urb_capt_retire(capsubs)))
+ return err;
+ } else {
+ if (state >= state_PRERUNNING)
+ atomic_inc(&capsubs->state);
+ }
+ usX2Y_usbpcm_urb_capt_iso_advance(capsubs, capsubs->completed_urb);
+ if (NULL != capsubs2)
+ usX2Y_usbpcm_urb_capt_iso_advance(NULL, capsubs2->completed_urb);
+ if ((err = usX2Y_urb_submit(capsubs, capsubs->completed_urb, frame)))
+ return err;
+ if (NULL != capsubs2)
+ if ((err = usX2Y_urb_submit(capsubs2, capsubs2->completed_urb, frame)))
+ return err;
+ }
+ capsubs->completed_urb = NULL;
+ if (NULL != capsubs2)
+ capsubs2->completed_urb = NULL;
+ return 0;
+}
+
+
+static void i_usX2Y_usbpcm_urb_complete(struct urb *urb, struct pt_regs *regs)
+{
+ snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t*)urb->context;
+ usX2Ydev_t *usX2Y = subs->usX2Y;
+ snd_usX2Y_substream_t *capsubs, *capsubs2, *playbacksubs;
+
+ if (unlikely(atomic_read(&subs->state) < state_PREPARED)) {
+ snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n", usb_get_current_frame_number(usX2Y->chip.dev), subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", urb->status, urb->start_frame);
+ return;
+ }
+ if (unlikely(urb->status)) {
+ usX2Y_error_urb_status(usX2Y, subs, urb);
+ return;
+ }
+ if (likely((0xFFFF & urb->start_frame) == usX2Y->wait_iso_frame))
+ subs->completed_urb = urb;
+ else {
+ usX2Y_error_sequence(usX2Y, subs, urb);
+ return;
+ }
+
+ capsubs = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
+ capsubs2 = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE + 2];
+ playbacksubs = usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
+ if (capsubs->completed_urb && atomic_read(&capsubs->state) >= state_PREPARED &&
+ (NULL == capsubs2 || capsubs2->completed_urb) &&
+ (playbacksubs->completed_urb || atomic_read(&playbacksubs->state) < state_PREPARED)) {
+ if (!usX2Y_usbpcm_usbframe_complete(capsubs, capsubs2, playbacksubs, urb->start_frame)) {
+ if (nr_of_packs() <= urb->start_frame &&
+ urb->start_frame <= (2 * nr_of_packs() - 1)) // uhci and ohci
+ usX2Y->wait_iso_frame = urb->start_frame - nr_of_packs();
+ else
+ usX2Y->wait_iso_frame += nr_of_packs();
+ } else {
+ snd_printdd("\n");
+ usX2Y_clients_stop(usX2Y);
+ }
+ }
+}
+
+
+static void usX2Y_hwdep_urb_release(struct urb** urb)
+{
+ usb_kill_urb(*urb);
+ usb_free_urb(*urb);
+ *urb = NULL;
+}
+
+/*
+ * release a substream
+ */
+static void usX2Y_usbpcm_urbs_release(snd_usX2Y_substream_t *subs)
+{
+ int i;
+ snd_printdd("snd_usX2Y_urbs_release() %i\n", subs->endpoint);
+ for (i = 0; i < NRURBS; i++)
+ usX2Y_hwdep_urb_release(subs->urb + i);
+}
+
+static void usX2Y_usbpcm_subs_startup_finish(usX2Ydev_t * usX2Y)
+{
+ usX2Y_urbs_set_complete(usX2Y, i_usX2Y_usbpcm_urb_complete);
+ usX2Y->prepare_subs = NULL;
+}
+
+static void i_usX2Y_usbpcm_subs_startup(struct urb *urb, struct pt_regs *regs)
+{
+ snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t*)urb->context;
+ usX2Ydev_t *usX2Y = subs->usX2Y;
+ snd_usX2Y_substream_t *prepare_subs = usX2Y->prepare_subs;
+ if (NULL != prepare_subs &&
+ urb->start_frame == prepare_subs->urb[0]->start_frame) {
+ atomic_inc(&prepare_subs->state);
+ if (prepare_subs == usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]) {
+ snd_usX2Y_substream_t *cap_subs2 = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE + 2];
+ if (cap_subs2 != NULL)
+ atomic_inc(&cap_subs2->state);
+ }
+ usX2Y_usbpcm_subs_startup_finish(usX2Y);
+ wake_up(&usX2Y->prepare_wait_queue);
+ }
+
+ i_usX2Y_usbpcm_urb_complete(urb, regs);
+}
+
+/*
+ * initialize a substream's urbs
+ */
+static int usX2Y_usbpcm_urbs_allocate(snd_usX2Y_substream_t *subs)
+{
+ int i;
+ unsigned int pipe;
+ int is_playback = subs == subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
+ struct usb_device *dev = subs->usX2Y->chip.dev;
+
+ pipe = is_playback ? usb_sndisocpipe(dev, subs->endpoint) :
+ usb_rcvisocpipe(dev, subs->endpoint);
+ subs->maxpacksize = usb_maxpacket(dev, pipe, is_playback);
+ if (!subs->maxpacksize)
+ return -EINVAL;
+
+ /* allocate and initialize data urbs */
+ for (i = 0; i < NRURBS; i++) {
+ struct urb** purb = subs->urb + i;
+ if (*purb) {
+ usb_kill_urb(*purb);
+ continue;
+ }
+ *purb = usb_alloc_urb(nr_of_packs(), GFP_KERNEL);
+ if (NULL == *purb) {
+ usX2Y_usbpcm_urbs_release(subs);
+ return -ENOMEM;
+ }
+ (*purb)->transfer_buffer = is_playback ?
+ subs->usX2Y->hwdep_pcm_shm->playback : (
+ subs->endpoint == 0x8 ?
+ subs->usX2Y->hwdep_pcm_shm->capture0x8 :
+ subs->usX2Y->hwdep_pcm_shm->capture0xA);
+
+ (*purb)->dev = dev;
+ (*purb)->pipe = pipe;
+ (*purb)->number_of_packets = nr_of_packs();
+ (*purb)->context = subs;
+ (*purb)->interval = 1;
+ (*purb)->complete = i_usX2Y_usbpcm_subs_startup;
+ }
+ return 0;
+}
+
+/*
+ * free the buffer
+ */
+static int snd_usX2Y_usbpcm_hw_free(snd_pcm_substream_t *substream)
+{
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)runtime->private_data,
+ *cap_subs2 = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE + 2];
+ down(&subs->usX2Y->prepare_mutex);
+ snd_printdd("snd_usX2Y_usbpcm_hw_free(%p)\n", substream);
+
+ if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) {
+ snd_usX2Y_substream_t *cap_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
+ atomic_set(&subs->state, state_STOPPED);
+ usX2Y_usbpcm_urbs_release(subs);
+ if (!cap_subs->pcm_substream ||
+ !cap_subs->pcm_substream->runtime ||
+ !cap_subs->pcm_substream->runtime->status ||
+ cap_subs->pcm_substream->runtime->status->state < SNDRV_PCM_STATE_PREPARED) {
+ atomic_set(&cap_subs->state, state_STOPPED);
+ if (NULL != cap_subs2)
+ atomic_set(&cap_subs2->state, state_STOPPED);
+ usX2Y_usbpcm_urbs_release(cap_subs);
+ if (NULL != cap_subs2)
+ usX2Y_usbpcm_urbs_release(cap_subs2);
+ }
+ } else {
+ snd_usX2Y_substream_t *playback_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
+ if (atomic_read(&playback_subs->state) < state_PREPARED) {
+ atomic_set(&subs->state, state_STOPPED);
+ if (NULL != cap_subs2)
+ atomic_set(&cap_subs2->state, state_STOPPED);
+ usX2Y_usbpcm_urbs_release(subs);
+ if (NULL != cap_subs2)
+ usX2Y_usbpcm_urbs_release(cap_subs2);
+ }
+ }
+ up(&subs->usX2Y->prepare_mutex);
+ return snd_pcm_lib_free_pages(substream);
+}
+
+static void usX2Y_usbpcm_subs_startup(snd_usX2Y_substream_t *subs)
+{
+ usX2Ydev_t * usX2Y = subs->usX2Y;
+ usX2Y->prepare_subs = subs;
+ subs->urb[0]->start_frame = -1;
+ smp_wmb(); // Make shure above modifications are seen by i_usX2Y_subs_startup()
+ usX2Y_urbs_set_complete(usX2Y, i_usX2Y_usbpcm_subs_startup);
+}
+
+static int usX2Y_usbpcm_urbs_start(snd_usX2Y_substream_t *subs)
+{
+ int p, u, err,
+ stream = subs->pcm_substream->stream;
+ usX2Ydev_t *usX2Y = subs->usX2Y;
+
+ if (SNDRV_PCM_STREAM_CAPTURE == stream) {
+ usX2Y->hwdep_pcm_shm->captured_iso_head = -1;
+ usX2Y->hwdep_pcm_shm->captured_iso_frames = 0;
+ }
+
+ for (p = 0; 3 >= (stream + p); p += 2) {
+ snd_usX2Y_substream_t *subs = usX2Y->subs[stream + p];
+ if (subs != NULL) {
+ if ((err = usX2Y_usbpcm_urbs_allocate(subs)) < 0)
+ return err;
+ subs->completed_urb = NULL;
+ }
+ }
+
+ for (p = 0; p < 4; p++) {
+ snd_usX2Y_substream_t *subs = usX2Y->subs[p];
+ if (subs != NULL && atomic_read(&subs->state) >= state_PREPARED)
+ goto start;
+ }
+ usX2Y->wait_iso_frame = -1;
+
+ start:
+ usX2Y_usbpcm_subs_startup(subs);
+ for (u = 0; u < NRURBS; u++) {
+ for (p = 0; 3 >= (stream + p); p += 2) {
+ snd_usX2Y_substream_t *subs = usX2Y->subs[stream + p];
+ if (subs != NULL) {
+ struct urb *urb = subs->urb[u];
+ if (usb_pipein(urb->pipe)) {
+ unsigned long pack;
+ if (0 == u)
+ atomic_set(&subs->state, state_STARTING3);
+ urb->dev = usX2Y->chip.dev;
+ urb->transfer_flags = URB_ISO_ASAP;
+ for (pack = 0; pack < nr_of_packs(); pack++) {
+ urb->iso_frame_desc[pack].offset = subs->maxpacksize * (pack + u * nr_of_packs());
+ urb->iso_frame_desc[pack].length = subs->maxpacksize;
+ }
+ urb->transfer_buffer_length = subs->maxpacksize * nr_of_packs();
+ if ((err = usb_submit_urb(urb, GFP_KERNEL)) < 0) {
+ snd_printk (KERN_ERR "cannot usb_submit_urb() for urb %d, err = %d\n", u, err);
+ err = -EPIPE;
+ goto cleanup;
+ } else {
+ snd_printdd("%i\n", urb->start_frame);
+ if (0 > usX2Y->wait_iso_frame)
+ usX2Y->wait_iso_frame = urb->start_frame;
+ }
+ urb->transfer_flags = 0;
+ } else {
+ atomic_set(&subs->state, state_STARTING1);
+ break;
+ }
+ }
+ }
+ }
+ err = 0;
+ wait_event(usX2Y->prepare_wait_queue, NULL == usX2Y->prepare_subs);
+ if (atomic_read(&subs->state) != state_PREPARED)
+ err = -EPIPE;
+
+ cleanup:
+ if (err) {
+ usX2Y_subs_startup_finish(usX2Y); // Call it now
+ usX2Y_clients_stop(usX2Y); // something is completely wroong > stop evrything
+ }
+ return err;
+}
+
+/*
+ * prepare callback
+ *
+ * set format and initialize urbs
+ */
+static int snd_usX2Y_usbpcm_prepare(snd_pcm_substream_t *substream)
+{
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)runtime->private_data;
+ usX2Ydev_t *usX2Y = subs->usX2Y;
+ snd_usX2Y_substream_t *capsubs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
+ int err = 0;
+ snd_printdd("snd_usX2Y_pcm_prepare(%p)\n", substream);
+
+ if (NULL == usX2Y->hwdep_pcm_shm) {
+ if (NULL == (usX2Y->hwdep_pcm_shm = snd_malloc_pages(sizeof(snd_usX2Y_hwdep_pcm_shm_t), GFP_KERNEL)))
+ return -ENOMEM;
+ memset(usX2Y->hwdep_pcm_shm, 0, sizeof(snd_usX2Y_hwdep_pcm_shm_t));
+ }
+
+ down(&usX2Y->prepare_mutex);
+ usX2Y_subs_prepare(subs);
+// Start hardware streams
+// SyncStream first....
+ if (atomic_read(&capsubs->state) < state_PREPARED) {
+ if (usX2Y->format != runtime->format)
+ if ((err = usX2Y_format_set(usX2Y, runtime->format)) < 0)
+ goto up_prepare_mutex;
+ if (usX2Y->rate != runtime->rate)
+ if ((err = usX2Y_rate_set(usX2Y, runtime->rate)) < 0)
+ goto up_prepare_mutex;
+ snd_printdd("starting capture pipe for %s\n", subs == capsubs ? "self" : "playpipe");
+ if (0 > (err = usX2Y_usbpcm_urbs_start(capsubs)))
+ goto up_prepare_mutex;
+ }
+
+ if (subs != capsubs) {
+ usX2Y->hwdep_pcm_shm->playback_iso_start = -1;
+ if (atomic_read(&subs->state) < state_PREPARED) {
+ while (usX2Y_iso_frames_per_buffer(runtime, usX2Y) > usX2Y->hwdep_pcm_shm->captured_iso_frames) {
+ signed long timeout;
+ snd_printd("Wait: iso_frames_per_buffer=%i,captured_iso_frames=%i\n", usX2Y_iso_frames_per_buffer(runtime, usX2Y), usX2Y->hwdep_pcm_shm->captured_iso_frames);
+ set_current_state(TASK_INTERRUPTIBLE);
+ timeout = schedule_timeout(HZ/100 + 1);
+ if (signal_pending(current)) {
+ err = -ERESTARTSYS;
+ goto up_prepare_mutex;
+ }
+ }
+ if (0 > (err = usX2Y_usbpcm_urbs_start(subs)))
+ goto up_prepare_mutex;
+ }
+ snd_printd("Ready: iso_frames_per_buffer=%i,captured_iso_frames=%i\n", usX2Y_iso_frames_per_buffer(runtime, usX2Y), usX2Y->hwdep_pcm_shm->captured_iso_frames);
+ } else
+ usX2Y->hwdep_pcm_shm->capture_iso_start = -1;
+
+ up_prepare_mutex:
+ up(&usX2Y->prepare_mutex);
+ return err;
+}
+
+static snd_pcm_hardware_t snd_usX2Y_4c =
+{
+ .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP_VALID),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_3LE,
+ .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
+ .rate_min = 44100,
+ .rate_max = 48000,
+ .channels_min = 2,
+ .channels_max = 4,
+ .buffer_bytes_max = (2*128*1024),
+ .period_bytes_min = 64,
+ .period_bytes_max = (128*1024),
+ .periods_min = 2,
+ .periods_max = 1024,
+ .fifo_size = 0
+};
+
+
+
+static int snd_usX2Y_usbpcm_open(snd_pcm_substream_t *substream)
+{
+ snd_usX2Y_substream_t *subs = ((snd_usX2Y_substream_t **)
+ snd_pcm_substream_chip(substream))[substream->stream];
+ snd_pcm_runtime_t *runtime = substream->runtime;
+
+ if (!(subs->usX2Y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS))
+ return -EBUSY;
+
+ runtime->hw = SNDRV_PCM_STREAM_PLAYBACK == substream->stream ? snd_usX2Y_2c :
+ (subs->usX2Y->subs[3] ? snd_usX2Y_4c : snd_usX2Y_2c);
+ runtime->private_data = subs;
+ subs->pcm_substream = substream;
+ snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 1000, 200000);
+ return 0;
+}
+
+
+static int snd_usX2Y_usbpcm_close(snd_pcm_substream_t *substream)
+{
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_usX2Y_substream_t *subs = (snd_usX2Y_substream_t *)runtime->private_data;
+ int err = 0;
+ snd_printd("\n");
+ subs->pcm_substream = NULL;
+ return err;
+}
+
+
+static snd_pcm_ops_t snd_usX2Y_usbpcm_ops =
+{
+ .open = snd_usX2Y_usbpcm_open,
+ .close = snd_usX2Y_usbpcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_usX2Y_pcm_hw_params,
+ .hw_free = snd_usX2Y_usbpcm_hw_free,
+ .prepare = snd_usX2Y_usbpcm_prepare,
+ .trigger = snd_usX2Y_pcm_trigger,
+ .pointer = snd_usX2Y_pcm_pointer,
+};
+
+
+static int usX2Y_pcms_lock_check(snd_card_t *card)
+{
+ struct list_head *list;
+ snd_device_t *dev;
+ snd_pcm_t *pcm;
+ int err = 0;
+ list_for_each(list, &card->devices) {
+ dev = snd_device(list);
+ if (dev->type != SNDRV_DEV_PCM)
+ continue;
+ pcm = dev->device_data;
+ down(&pcm->open_mutex);
+ }
+ list_for_each(list, &card->devices) {
+ int s;
+ dev = snd_device(list);
+ if (dev->type != SNDRV_DEV_PCM)
+ continue;
+ pcm = dev->device_data;
+ for (s = 0; s < 2; ++s) {
+ snd_pcm_substream_t *substream;
+ substream = pcm->streams[s].substream;
+ if (substream && substream->open_flag)
+ err = -EBUSY;
+ }
+ }
+ return err;
+}
+
+
+static void usX2Y_pcms_unlock(snd_card_t *card)
+{
+ struct list_head *list;
+ snd_device_t *dev;
+ snd_pcm_t *pcm;
+ list_for_each(list, &card->devices) {
+ dev = snd_device(list);
+ if (dev->type != SNDRV_DEV_PCM)
+ continue;
+ pcm = dev->device_data;
+ up(&pcm->open_mutex);
+ }
+}
+
+
+static int snd_usX2Y_hwdep_pcm_open(snd_hwdep_t *hw, struct file *file)
+{
+ // we need to be the first
+ snd_card_t *card = hw->card;
+ int err = usX2Y_pcms_lock_check(card);
+ if (0 == err)
+ usX2Y(card)->chip_status |= USX2Y_STAT_CHIP_MMAP_PCM_URBS;
+ usX2Y_pcms_unlock(card);
+ return err;
+}
+
+
+static int snd_usX2Y_hwdep_pcm_release(snd_hwdep_t *hw, struct file *file)
+{
+ snd_card_t *card = hw->card;
+ int err = usX2Y_pcms_lock_check(card);
+ if (0 == err)
+ usX2Y(hw->card)->chip_status &= ~USX2Y_STAT_CHIP_MMAP_PCM_URBS;
+ usX2Y_pcms_unlock(card);
+ return err;
+}
+
+
+static void snd_usX2Y_hwdep_pcm_vm_open(struct vm_area_struct *area)
+{
+}
+
+
+static void snd_usX2Y_hwdep_pcm_vm_close(struct vm_area_struct *area)
+{
+}
+
+
+static struct page * snd_usX2Y_hwdep_pcm_vm_nopage(struct vm_area_struct *area, unsigned long address, int *type)
+{
+ unsigned long offset;
+ struct page *page;
+ void *vaddr;
+
+ offset = area->vm_pgoff << PAGE_SHIFT;
+ offset += address - area->vm_start;
+ snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_OOM);
+ vaddr = (char*)((usX2Ydev_t*)area->vm_private_data)->hwdep_pcm_shm + offset;
+ page = virt_to_page(vaddr);
+
+ if (type)
+ *type = VM_FAULT_MINOR;
+
+ return page;
+}
+
+
+static struct vm_operations_struct snd_usX2Y_hwdep_pcm_vm_ops = {
+ .open = snd_usX2Y_hwdep_pcm_vm_open,
+ .close = snd_usX2Y_hwdep_pcm_vm_close,
+ .nopage = snd_usX2Y_hwdep_pcm_vm_nopage,
+};
+
+
+static int snd_usX2Y_hwdep_pcm_mmap(snd_hwdep_t * hw, struct file *filp, struct vm_area_struct *area)
+{
+ unsigned long size = (unsigned long)(area->vm_end - area->vm_start);
+ usX2Ydev_t *usX2Y = (usX2Ydev_t*)hw->private_data;
+
+ if (!(((usX2Ydev_t*)hw->private_data)->chip_status & USX2Y_STAT_CHIP_INIT))
+ return -EBUSY;
+
+ /* if userspace tries to mmap beyond end of our buffer, fail */
+ if (size > PAGE_ALIGN(sizeof(snd_usX2Y_hwdep_pcm_shm_t))) {
+ snd_printd("%lu > %lu\n", size, (unsigned long)sizeof(snd_usX2Y_hwdep_pcm_shm_t));
+ return -EINVAL;
+ }
+
+ if (!usX2Y->hwdep_pcm_shm) {
+ return -ENODEV;
+ }
+ area->vm_ops = &snd_usX2Y_hwdep_pcm_vm_ops;
+ area->vm_flags |= VM_RESERVED;
+ snd_printd("vm_flags=0x%lX\n", area->vm_flags);
+ area->vm_private_data = hw->private_data;
+ return 0;
+}
+
+
+static void snd_usX2Y_hwdep_pcm_private_free(snd_hwdep_t *hwdep)
+{
+ usX2Ydev_t *usX2Y = (usX2Ydev_t *)hwdep->private_data;
+ if (NULL != usX2Y->hwdep_pcm_shm)
+ snd_free_pages(usX2Y->hwdep_pcm_shm, sizeof(snd_usX2Y_hwdep_pcm_shm_t));
+}
+
+
+static void snd_usX2Y_usbpcm_private_free(snd_pcm_t *pcm)
+{
+ snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+
+int usX2Y_hwdep_pcm_new(snd_card_t* card)
+{
+ int err;
+ snd_hwdep_t *hw;
+ snd_pcm_t *pcm;
+ struct usb_device *dev = usX2Y(card)->chip.dev;
+ if (1 != nr_of_packs())
+ return 0;
+
+ if ((err = snd_hwdep_new(card, SND_USX2Y_USBPCM_ID, 1, &hw)) < 0) {
+ snd_printd("\n");
+ return err;
+ }
+ hw->iface = SNDRV_HWDEP_IFACE_USX2Y_PCM;
+ hw->private_data = usX2Y(card);
+ hw->private_free = snd_usX2Y_hwdep_pcm_private_free;
+ hw->ops.open = snd_usX2Y_hwdep_pcm_open;
+ hw->ops.release = snd_usX2Y_hwdep_pcm_release;
+ hw->ops.mmap = snd_usX2Y_hwdep_pcm_mmap;
+ hw->exclusive = 1;
+ sprintf(hw->name, "/proc/bus/usb/%03d/%03d/hwdeppcm", dev->bus->busnum, dev->devnum);
+
+ err = snd_pcm_new(card, NAME_ALLCAPS" hwdep Audio", 2, 1, 1, &pcm);
+ if (err < 0) {
+ return err;
+ }
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_usX2Y_usbpcm_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_usX2Y_usbpcm_ops);
+
+ pcm->private_data = usX2Y(card)->subs;
+ pcm->private_free = snd_usX2Y_usbpcm_private_free;
+ pcm->info_flags = 0;
+
+ sprintf(pcm->name, NAME_ALLCAPS" hwdep Audio");
+ if (0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream,
+ SNDRV_DMA_TYPE_CONTINUOUS,
+ snd_dma_continuous_data(GFP_KERNEL),
+ 64*1024, 128*1024)) ||
+ 0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
+ SNDRV_DMA_TYPE_CONTINUOUS,
+ snd_dma_continuous_data(GFP_KERNEL),
+ 64*1024, 128*1024))) {
+ snd_usX2Y_usbpcm_private_free(pcm);
+ return err;
+ }
+
+
+ return 0;
+}
+
+#else
+
+int usX2Y_hwdep_pcm_new(snd_card_t* card)
+{
+ return 0;
+}
+
+#endif
diff --git a/sound/usb/usx2y/usx2yhwdeppcm.h b/sound/usb/usx2y/usx2yhwdeppcm.h
new file mode 100644
index 0000000..d68f0cb
--- /dev/null
+++ b/sound/usb/usx2y/usx2yhwdeppcm.h
@@ -0,0 +1,21 @@
+#define MAXPACK 50
+#define MAXBUFFERMS 100
+#define MAXSTRIDE 3
+
+#define SSS (((MAXPACK*MAXBUFFERMS*MAXSTRIDE + 4096) / 4096) * 4096)
+struct snd_usX2Y_hwdep_pcm_shm {
+ char playback[SSS];
+ char capture0x8[SSS];
+ char capture0xA[SSS];
+ volatile int playback_iso_head;
+ int playback_iso_start;
+ struct {
+ int frame,
+ offset,
+ length;
+ } captured_iso[128];
+ volatile int captured_iso_head;
+ volatile unsigned captured_iso_frames;
+ int capture_iso_start;
+};
+typedef struct snd_usX2Y_hwdep_pcm_shm snd_usX2Y_hwdep_pcm_shm_t;
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