Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

10 files changed, 2847 insertions, 0 deletions

diff --git a/sound/usb/usx2y/Makefile b/sound/usb/usx2y/Makefile
new file mode 100644
index 00000000000..9ac22bce112
--- /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 00000000000..bef9b0c142c
--- /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 00000000000..d612a26eb77
--- /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 00000000000..6af16438d2c
--- /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 00000000000..b06a267e5da
--- /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 00000000000..f65f3a7194c
--- /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 00000000000..4c292e09006
--- /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