diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 7f4dceb..d0eb696 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -300,6 +300,74 @@
            control correctly. If you have problems regarding this, try
            another ALSA compliant mixer (alsamixer works).
 
+  Module snd-azt1605
+  ------------------
+
+    Module for Aztech Sound Galaxy soundcards based on the Aztech AZT1605
+    chipset.
+
+    port	- port # for BASE (0x220,0x240,0x260,0x280)
+    wss_port	- port # for WSS (0x530,0x604,0xe80,0xf40)
+    irq		- IRQ # for WSS (7,9,10,11)
+    dma1	- DMA # for WSS playback (0,1,3)
+    dma2	- DMA # for WSS capture (0,1), -1 = disabled (default)
+    mpu_port	- port # for MPU-401 UART (0x300,0x330), -1 = disabled (default)
+    mpu_irq	- IRQ # for MPU-401 UART (3,5,7,9), -1 = disabled (default)
+    fm_port	- port # for OPL3 (0x388), -1 = disabled (default)
+
+    This module supports multiple cards. It does not support autoprobe: port,
+    wss_port, irq and dma1 have to be specified. The other values are
+    optional.
+
+    "port" needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
+    or the value stored in the card's EEPROM for cards that have an EEPROM and
+    their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
+    be choosen freely from the options enumerated above.
+
+    If dma2 is specified and different from dma1, the card will operate in
+    full-duplex mode. When dma1=3, only dma2=0 is valid and the only way to
+    enable capture since only channels 0 and 1 are available for capture.
+
+    Generic settings are "port=0x220 wss_port=0x530 irq=10 dma1=1 dma2=0
+    mpu_port=0x330 mpu_irq=9 fm_port=0x388".
+
+    Whatever IRQ and DMA channels you pick, be sure to reserve them for
+    legacy ISA in your BIOS.
+
+  Module snd-azt2316
+  ------------------
+
+    Module for Aztech Sound Galaxy soundcards based on the Aztech AZT2316
+    chipset.
+
+    port	- port # for BASE (0x220,0x240,0x260,0x280)
+    wss_port	- port # for WSS (0x530,0x604,0xe80,0xf40)
+    irq		- IRQ # for WSS (7,9,10,11)
+    dma1	- DMA # for WSS playback (0,1,3)
+    dma2	- DMA # for WSS capture (0,1), -1 = disabled (default)
+    mpu_port	- port # for MPU-401 UART (0x300,0x330), -1 = disabled (default)
+    mpu_irq	- IRQ # for MPU-401 UART (5,7,9,10), -1 = disabled (default)
+    fm_port	- port # for OPL3 (0x388), -1 = disabled (default)
+
+    This module supports multiple cards. It does not support autoprobe: port,
+    wss_port, irq and dma1 have to be specified. The other values are
+    optional.
+
+    "port" needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
+    or the value stored in the card's EEPROM for cards that have an EEPROM and
+    their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
+    be choosen freely from the options enumerated above.
+
+    If dma2 is specified and different from dma1, the card will operate in
+    full-duplex mode. When dma1=3, only dma2=0 is valid and the only way to
+    enable capture since only channels 0 and 1 are available for capture.
+
+    Generic settings are "port=0x220 wss_port=0x530 irq=10 dma1=1 dma2=0
+    mpu_port=0x330 mpu_irq=9 fm_port=0x388".
+
+    Whatever IRQ and DMA channels you pick, be sure to reserve them for
+    legacy ISA in your BIOS.
+
   Module snd-aw2
   --------------
 
@@ -1641,20 +1709,6 @@
 
     This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
 
-  Module snd-sgalaxy
-  ------------------
-
-    Module for Aztech Sound Galaxy sound card.
-
-    sbport	- Port # for SB16 interface (0x220,0x240)
-    wssport	- Port # for WSS interface (0x530,0xe80,0xf40,0x604)
-    irq		- IRQ # (7,9,10,11)
-    dma1	- DMA #
-
-    This module supports multiple cards.
-
-    The power-management is supported.
-
   Module snd-sscape
   -----------------
 
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 85f1c6b..dfd9b76 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -278,6 +278,7 @@
 	snd_pcm_uframes_t hw_ptr_base;	/* Position at buffer restart */
 	snd_pcm_uframes_t hw_ptr_interrupt; /* Position at interrupt time */
 	unsigned long hw_ptr_jiffies;	/* Time when hw_ptr is updated */
+	unsigned long hw_ptr_buffer_jiffies; /* buffer time in jiffies */
 	snd_pcm_sframes_t delay;	/* extra delay; typically FIFO size */
 
 	/* -- HW params -- */
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index e23e0e7..a1707cc 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -334,11 +334,15 @@
 		/* delta = "expected next hw_ptr" for in_interrupt != 0 */
 		delta = runtime->hw_ptr_interrupt + runtime->period_size;
 		if (delta > new_hw_ptr) {
-			hw_base += runtime->buffer_size;
-			if (hw_base >= runtime->boundary)
-				hw_base = 0;
-			new_hw_ptr = hw_base + pos;
-			goto __delta;
+			/* check for double acknowledged interrupts */
+			hdelta = jiffies - runtime->hw_ptr_jiffies;
+			if (hdelta > runtime->hw_ptr_buffer_jiffies/2) {
+				hw_base += runtime->buffer_size;
+				if (hw_base >= runtime->boundary)
+					hw_base = 0;
+				new_hw_ptr = hw_base + pos;
+				goto __delta;
+			}
 		}
 	}
 	/* new_hw_ptr might be lower than old_hw_ptr in case when */
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 134fc6c..e2e7389 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -864,6 +864,8 @@
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	snd_pcm_trigger_tstamp(substream);
 	runtime->hw_ptr_jiffies = jiffies;
+	runtime->hw_ptr_buffer_jiffies = (runtime->buffer_size * HZ) / 
+							    runtime->rate;
 	runtime->status->state = state;
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
 	    runtime->silence_size > 0)
diff --git a/sound/drivers/Kconfig b/sound/drivers/Kconfig
index 480c386..c896116 100644
--- a/sound/drivers/Kconfig
+++ b/sound/drivers/Kconfig
@@ -74,6 +74,25 @@
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-dummy.
 
+config SND_ALOOP
+        tristate "Generic loopback driver (PCM)"
+        select SND_PCM
+        help
+          Say 'Y' or 'M' to include support for the PCM loopback device.
+	  This module returns played samples back to the user space using
+	  the standard ALSA PCM device. The devices are routed 0->1 and
+          1->0, where first number is the playback PCM device and second
+	  number is the capture device. Module creates two PCM devices and
+	  configured number of substreams (see the pcm_substreams module
+          parameter).
+
+	  The looback device allow time sychronization with an external
+	  timing source using the time shift universal control (+-20%
+	  of system time).
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-aloop.
+
 config SND_VIRMIDI
 	tristate "Virtual MIDI soundcard"
 	depends on SND_SEQUENCER
diff --git a/sound/drivers/Makefile b/sound/drivers/Makefile
index d4a07f9..1a8440c 100644
--- a/sound/drivers/Makefile
+++ b/sound/drivers/Makefile
@@ -4,6 +4,7 @@
 #
 
 snd-dummy-objs := dummy.o
+snd-aloop-objs := aloop.o
 snd-mtpav-objs := mtpav.o
 snd-mts64-objs := mts64.o
 snd-portman2x4-objs := portman2x4.o
@@ -13,6 +14,7 @@
 
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_DUMMY) += snd-dummy.o
+obj-$(CONFIG_SND_ALOOP) += snd-aloop.o
 obj-$(CONFIG_SND_VIRMIDI) += snd-virmidi.o
 obj-$(CONFIG_SND_SERIAL_U16550) += snd-serial-u16550.o
 obj-$(CONFIG_SND_MTPAV) += snd-mtpav.o
diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
new file mode 100644
index 0000000..3123a15
--- /dev/null
+++ b/sound/drivers/aloop.c
@@ -0,0 +1,1055 @@
+/*
+ *  Loopback soundcard
+ *
+ *  Original code:
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ *
+ *  More accurate positioning and full-duplex support:
+ *  Copyright (c) Ahmet İnan <ainan at mathematik.uni-freiburg.de>
+ *
+ *  Major (almost complete) rewrite:
+ *  Copyright (c) by Takashi Iwai <tiwai@suse.de>
+ *
+ *  A next major update in 2010 (separate timers for playback and capture):
+ *  Copyright (c) Jaroslav Kysela <perex@perex.cz>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/slab.h>
+#include <linux/time.h>
+#include <linux/wait.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/pcm.h>
+#include <sound/initval.h>
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
+MODULE_DESCRIPTION("A loopback soundcard");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{ALSA,Loopback soundcard}}");
+
+#define MAX_PCM_SUBSTREAMS	8
+
+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] = {1, [1 ... (SNDRV_CARDS - 1)] = 0};
+static int pcm_substreams[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 8};
+static int pcm_notify[SNDRV_CARDS];
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for loopback soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for loopback soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable this loopback soundcard.");
+module_param_array(pcm_substreams, int, NULL, 0444);
+MODULE_PARM_DESC(pcm_substreams, "PCM substreams # (1-8) for loopback driver.");
+module_param_array(pcm_notify, int, NULL, 0444);
+MODULE_PARM_DESC(pcm_notify, "Break capture when PCM format/rate/channels changes.");
+
+#define NO_PITCH 100000
+
+struct loopback_pcm;
+
+struct loopback_cable {
+	spinlock_t lock;
+	struct loopback_pcm *streams[2];
+	struct snd_pcm_hardware hw;
+	/* flags */
+	unsigned int valid;
+	unsigned int running;
+};
+
+struct loopback_setup {
+	unsigned int notify: 1;
+	unsigned int rate_shift;
+	unsigned int format;
+	unsigned int rate;
+	unsigned int channels;
+	struct snd_ctl_elem_id active_id;
+	struct snd_ctl_elem_id format_id;
+	struct snd_ctl_elem_id rate_id;
+	struct snd_ctl_elem_id channels_id;
+};
+
+struct loopback {
+	struct snd_card *card;
+	struct mutex cable_lock;
+	struct loopback_cable *cables[MAX_PCM_SUBSTREAMS][2];
+	struct snd_pcm *pcm[2];
+	struct loopback_setup setup[MAX_PCM_SUBSTREAMS][2];
+};
+
+struct loopback_pcm {
+	struct loopback *loopback;
+	struct snd_pcm_substream *substream;
+	struct loopback_cable *cable;
+	unsigned int pcm_buffer_size;
+	unsigned int buf_pos;	/* position in buffer */
+	unsigned int silent_size;
+	/* PCM parameters */
+	unsigned int pcm_period_size;
+	unsigned int pcm_bps;		/* bytes per second */
+	unsigned int pcm_salign;	/* bytes per sample * channels */
+	unsigned int pcm_rate_shift;	/* rate shift value */
+	/* flags */
+	unsigned int period_update_pending :1;
+	/* timer stuff */
+	unsigned int irq_pos;		/* fractional IRQ position */
+	unsigned int period_size_frac;
+	unsigned long last_jiffies;
+	struct timer_list timer;
+};
+
+static struct platform_device *devices[SNDRV_CARDS];
+
+static inline unsigned int byte_pos(struct loopback_pcm *dpcm, unsigned int x)
+{
+	if (dpcm->pcm_rate_shift == NO_PITCH) {
+		x /= HZ;
+	} else {
+		x = div_u64(NO_PITCH * (unsigned long long)x,
+			    HZ * (unsigned long long)dpcm->pcm_rate_shift);
+	}
+	return x - (x % dpcm->pcm_salign);
+}
+
+static inline unsigned int frac_pos(struct loopback_pcm *dpcm, unsigned int x)
+{
+	if (dpcm->pcm_rate_shift == NO_PITCH) {	/* no pitch */
+		return x * HZ;
+	} else {
+		x = div_u64(dpcm->pcm_rate_shift * (unsigned long long)x * HZ,
+			    NO_PITCH);
+	}
+	return x;
+}
+
+static inline struct loopback_setup *get_setup(struct loopback_pcm *dpcm)
+{
+	int device = dpcm->substream->pstr->pcm->device;
+	
+	if (dpcm->substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		device ^= 1;
+	return &dpcm->loopback->setup[dpcm->substream->number][device];
+}
+
+static inline unsigned int get_notify(struct loopback_pcm *dpcm)
+{
+	return get_setup(dpcm)->notify;
+}
+
+static inline unsigned int get_rate_shift(struct loopback_pcm *dpcm)
+{
+	return get_setup(dpcm)->rate_shift;
+}
+
+static void loopback_timer_start(struct loopback_pcm *dpcm)
+{
+	unsigned long tick;
+	unsigned int rate_shift = get_rate_shift(dpcm);
+
+	if (rate_shift != dpcm->pcm_rate_shift) {
+		dpcm->pcm_rate_shift = rate_shift;
+		dpcm->period_size_frac = frac_pos(dpcm, dpcm->pcm_period_size);
+	}
+	tick = dpcm->period_size_frac - dpcm->irq_pos;
+	tick = (tick + dpcm->pcm_bps - 1) / dpcm->pcm_bps;
+	dpcm->timer.expires = jiffies + tick;
+	add_timer(&dpcm->timer);
+}
+
+static inline void loopback_timer_stop(struct loopback_pcm *dpcm)
+{
+	del_timer(&dpcm->timer);
+}
+
+#define CABLE_VALID_PLAYBACK	(1 << SNDRV_PCM_STREAM_PLAYBACK)
+#define CABLE_VALID_CAPTURE	(1 << SNDRV_PCM_STREAM_CAPTURE)
+#define CABLE_VALID_BOTH	(CABLE_VALID_PLAYBACK|CABLE_VALID_CAPTURE)
+
+static int loopback_check_format(struct loopback_cable *cable, int stream)
+{
+	struct snd_pcm_runtime *runtime;
+	struct loopback_setup *setup;
+	struct snd_card *card;
+	int check;
+
+	if (cable->valid != CABLE_VALID_BOTH) {
+		if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+			goto __notify;
+		return 0;
+	}
+	runtime = cable->streams[SNDRV_PCM_STREAM_PLAYBACK]->
+							substream->runtime;
+	check = cable->hw.formats != (1ULL << runtime->format) ||
+		cable->hw.rate_min != runtime->rate ||
+		cable->hw.rate_max != runtime->rate ||
+		cable->hw.channels_min != runtime->channels ||
+		cable->hw.channels_max != runtime->channels;
+	if (!check)
+		return 0;
+	if (stream == SNDRV_PCM_STREAM_CAPTURE) {
+		return -EIO;
+	} else {
+		snd_pcm_stop(cable->streams[SNDRV_PCM_STREAM_CAPTURE]->
+					substream, SNDRV_PCM_STATE_DRAINING);
+	      __notify:
+		runtime = cable->streams[SNDRV_PCM_STREAM_PLAYBACK]->
+							substream->runtime;
+		setup = get_setup(cable->streams[SNDRV_PCM_STREAM_PLAYBACK]);
+		card = cable->streams[SNDRV_PCM_STREAM_PLAYBACK]->loopback->card;
+		if (setup->format != runtime->format) {
+			snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+							&setup->format_id);
+			setup->format = runtime->format;
+		}
+		if (setup->rate != runtime->rate) {
+			snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+							&setup->rate_id);
+			setup->rate = runtime->rate;
+		}
+		if (setup->channels != runtime->channels) {
+			snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
+							&setup->channels_id);
+			setup->channels = runtime->channels;
+		}
+	}
+	return 0;
+}
+
+static void loopback_active_notify(struct loopback_pcm *dpcm)
+{
+	snd_ctl_notify(dpcm->loopback->card,
+		       SNDRV_CTL_EVENT_MASK_VALUE,
+		       &get_setup(dpcm)->active_id);
+}
+
+static int loopback_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct loopback_pcm *dpcm = runtime->private_data;
+	struct loopback_cable *cable = dpcm->cable;
+	int err;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		err = loopback_check_format(cable, substream->stream);
+		if (err < 0)
+			return err;
+		dpcm->last_jiffies = jiffies;
+		dpcm->pcm_rate_shift = 0;
+		loopback_timer_start(dpcm);
+		cable->running |= (1 << substream->stream);
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+			loopback_active_notify(dpcm);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		cable->running &= ~(1 << substream->stream);
+		loopback_timer_stop(dpcm);
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+			loopback_active_notify(dpcm);
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int loopback_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct loopback_pcm *dpcm = runtime->private_data;
+	struct loopback_cable *cable = dpcm->cable;
+	unsigned int bps, salign;
+
+	salign = (snd_pcm_format_width(runtime->format) *
+						runtime->channels) / 8;
+	bps = salign * runtime->rate;
+	if (bps <= 0 || salign <= 0)
+		return -EINVAL;
+
+	dpcm->buf_pos = 0;
+	dpcm->pcm_buffer_size = frames_to_bytes(runtime, runtime->buffer_size);
+	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+		/* clear capture buffer */
+		dpcm->silent_size = dpcm->pcm_buffer_size;
+		snd_pcm_format_set_silence(runtime->format, runtime->dma_area,
+					   runtime->buffer_size * runtime->channels);
+	}
+
+	dpcm->irq_pos = 0;
+	dpcm->period_update_pending = 0;
+	dpcm->pcm_bps = bps;
+	dpcm->pcm_salign = salign;
+	dpcm->pcm_period_size = frames_to_bytes(runtime, runtime->period_size);
+
+	mutex_lock(&dpcm->loopback->cable_lock);
+	if (!(cable->valid & ~(1 << substream->stream))) {
+		cable->hw.formats = (1ULL << runtime->format);
+		cable->hw.rate_min = runtime->rate;
+		cable->hw.rate_max = runtime->rate;
+		cable->hw.channels_min = runtime->channels;
+		cable->hw.channels_max = runtime->channels;
+	}
+	cable->valid |= 1 << substream->stream;
+	mutex_unlock(&dpcm->loopback->cable_lock);
+
+	return 0;
+}
+
+static void clear_capture_buf(struct loopback_pcm *dpcm, unsigned int bytes)
+{
+	struct snd_pcm_runtime *runtime = dpcm->substream->runtime;
+	char *dst = runtime->dma_area;
+	unsigned int dst_off = dpcm->buf_pos;
+
+	if (dpcm->silent_size >= dpcm->pcm_buffer_size)
+		return;
+	if (dpcm->silent_size + bytes > dpcm->pcm_buffer_size)
+		bytes = dpcm->pcm_buffer_size - dpcm->silent_size;
+
+	for (;;) {
+		unsigned int size = bytes;
+		if (dst_off + size > dpcm->pcm_buffer_size)
+			size = dpcm->pcm_buffer_size - dst_off;
+		snd_pcm_format_set_silence(runtime->format, dst + dst_off,
+					   bytes_to_frames(runtime, size) *
+					   	runtime->channels);
+		dpcm->silent_size += size;
+		bytes -= size;
+		if (!bytes)
+			break;
+		dst_off = 0;
+	}
+}
+
+static void copy_play_buf(struct loopback_pcm *play,
+			  struct loopback_pcm *capt,
+			  unsigned int bytes)
+{
+	struct snd_pcm_runtime *runtime = play->substream->runtime;
+	char *src = play->substream->runtime->dma_area;
+	char *dst = capt->substream->runtime->dma_area;
+	unsigned int src_off = play->buf_pos;
+	unsigned int dst_off = capt->buf_pos;
+	unsigned int clear_bytes = 0;
+
+	/* check if playback is draining, trim the capture copy size
+	 * when our pointer is at the end of playback ring buffer */
+	if (runtime->status->state == SNDRV_PCM_STATE_DRAINING &&
+	    snd_pcm_playback_hw_avail(runtime) < runtime->buffer_size) { 
+	    	snd_pcm_uframes_t appl_ptr, appl_ptr1, diff;
+		appl_ptr = appl_ptr1 = runtime->control->appl_ptr;
+		appl_ptr1 -= appl_ptr1 % runtime->buffer_size;
+		appl_ptr1 += play->buf_pos / play->pcm_salign;
+		if (appl_ptr < appl_ptr1)
+			appl_ptr1 -= runtime->buffer_size;
+		diff = (appl_ptr - appl_ptr1) * play->pcm_salign;
+		if (diff < bytes) {
+			clear_bytes = bytes - diff;
+			bytes = diff;
+		}
+	}
+
+	for (;;) {
+		unsigned int size = bytes;
+		if (src_off + size > play->pcm_buffer_size)
+			size = play->pcm_buffer_size - src_off;
+		if (dst_off + size > capt->pcm_buffer_size)
+			size = capt->pcm_buffer_size - dst_off;
+		memcpy(dst + dst_off, src + src_off, size);
+		capt->silent_size = 0;
+		bytes -= size;
+		if (!bytes)
+			break;
+		src_off = (src_off + size) % play->pcm_buffer_size;
+		dst_off = (dst_off + size) % capt->pcm_buffer_size;
+	}
+
+	if (clear_bytes > 0)
+		clear_capture_buf(capt, clear_bytes);
+}
+
+#define BYTEPOS_UPDATE_POSONLY	0
+#define BYTEPOS_UPDATE_CLEAR	1
+#define BYTEPOS_UPDATE_COPY	2
+
+static void loopback_bytepos_update(struct loopback_pcm *dpcm,
+				    unsigned int delta,
+				    unsigned int cmd)
+{
+	unsigned int count;
+	unsigned long last_pos;
+
+	last_pos = byte_pos(dpcm, dpcm->irq_pos);
+	dpcm->irq_pos += delta * dpcm->pcm_bps;
+	count = byte_pos(dpcm, dpcm->irq_pos) - last_pos;
+	if (!count)
+		return;
+	if (cmd == BYTEPOS_UPDATE_CLEAR)
+		clear_capture_buf(dpcm, count);
+	else if (cmd == BYTEPOS_UPDATE_COPY)
+		copy_play_buf(dpcm->cable->streams[SNDRV_PCM_STREAM_PLAYBACK],
+			      dpcm->cable->streams[SNDRV_PCM_STREAM_CAPTURE],
+			      count);
+	dpcm->buf_pos += count;
+	dpcm->buf_pos %= dpcm->pcm_buffer_size;
+	if (dpcm->irq_pos >= dpcm->period_size_frac) {
+		dpcm->irq_pos %= dpcm->period_size_frac;
+		dpcm->period_update_pending = 1;
+	}
+}
+
+static void loopback_pos_update(struct loopback_cable *cable)
+{
+	struct loopback_pcm *dpcm_play =
+			cable->streams[SNDRV_PCM_STREAM_PLAYBACK];
+	struct loopback_pcm *dpcm_capt =
+			cable->streams[SNDRV_PCM_STREAM_CAPTURE];
+	unsigned long delta_play = 0, delta_capt = 0;
+
+	spin_lock(&cable->lock);	
+	if (cable->running & (1 << SNDRV_PCM_STREAM_PLAYBACK)) {
+		delta_play = jiffies - dpcm_play->last_jiffies;
+		dpcm_play->last_jiffies += delta_play;
+	}
+
+	if (cable->running & (1 << SNDRV_PCM_STREAM_CAPTURE)) {
+		delta_capt = jiffies - dpcm_capt->last_jiffies;
+		dpcm_capt->last_jiffies += delta_capt;
+	}
+
+	if (delta_play == 0 && delta_capt == 0) {
+		spin_unlock(&cable->lock);
+		return;
+	}
+		
+	if (delta_play > delta_capt) {
+		loopback_bytepos_update(dpcm_play, delta_play - delta_capt,
+					BYTEPOS_UPDATE_POSONLY);
+		delta_play = delta_capt;
+	} else if (delta_play < delta_capt) {
+		loopback_bytepos_update(dpcm_capt, delta_capt - delta_play,
+					BYTEPOS_UPDATE_CLEAR);
+		delta_capt = delta_play;
+	}
+
+	if (delta_play == 0 && delta_capt == 0) {
+		spin_unlock(&cable->lock);
+		return;
+	}
+	/* note delta_capt == delta_play at this moment */
+	loopback_bytepos_update(dpcm_capt, delta_capt, BYTEPOS_UPDATE_COPY);
+	loopback_bytepos_update(dpcm_play, delta_play, BYTEPOS_UPDATE_POSONLY);
+	spin_unlock(&cable->lock);
+}
+
+static void loopback_timer_function(unsigned long data)
+{
+	struct loopback_pcm *dpcm = (struct loopback_pcm *)data;
+	int stream;
+
+	loopback_pos_update(dpcm->cable);
+	stream = dpcm->substream->stream;
+	if (dpcm->cable->running & (1 << stream))
+		loopback_timer_start(dpcm);
+	if (dpcm->period_update_pending) {
+		dpcm->period_update_pending = 0;
+		if (dpcm->cable->running & (1 << stream))
+			snd_pcm_period_elapsed(dpcm->substream);
+	}
+}
+
+static snd_pcm_uframes_t loopback_pointer(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct loopback_pcm *dpcm = runtime->private_data;
+
+	loopback_pos_update(dpcm->cable);
+	return bytes_to_frames(runtime, dpcm->buf_pos);
+}
+
+static struct snd_pcm_hardware loopback_pcm_hardware =
+{
+	.info =		(SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP |
+			 SNDRV_PCM_INFO_MMAP_VALID),
+	.formats =	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
+			 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE |
+			 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE),
+	.rates =	SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_192000,
+	.rate_min =		8000,
+	.rate_max =		192000,
+	.channels_min =		1,
+	.channels_max =		32,
+	.buffer_bytes_max =	2 * 1024 * 1024,
+	.period_bytes_min =	64,
+	.period_bytes_max =	2 * 1024 * 1024,
+	.periods_min =		1,
+	.periods_max =		1024,
+	.fifo_size =		0,
+};
+
+static void loopback_runtime_free(struct snd_pcm_runtime *runtime)
+{
+	struct loopback_pcm *dpcm = runtime->private_data;
+	kfree(dpcm);
+}
+
+static int loopback_hw_params(struct snd_pcm_substream *substream,
+			      struct snd_pcm_hw_params *params)
+{
+	return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
+}
+
+static int loopback_hw_free(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct loopback_pcm *dpcm = runtime->private_data;
+	struct loopback_cable *cable = dpcm->cable;
+
+	mutex_lock(&dpcm->loopback->cable_lock);
+	cable->valid &= ~(1 << substream->stream);
+	mutex_unlock(&dpcm->loopback->cable_lock);
+	return snd_pcm_lib_free_pages(substream);
+}
+
+static unsigned int get_cable_index(struct snd_pcm_substream *substream)
+{
+	if (!substream->pcm->device)
+		return substream->stream;
+	else
+		return !substream->stream;
+}
+
+static int loopback_open(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct loopback *loopback = substream->private_data;
+	struct loopback_pcm *dpcm;
+	struct loopback_cable *cable;
+	int err = 0;
+	int dev = get_cable_index(substream);
+
+	mutex_lock(&loopback->cable_lock);
+	dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
+	if (!dpcm) {
+		err = -ENOMEM;
+		goto unlock;
+	}
+	dpcm->loopback = loopback;
+	dpcm->substream = substream;
+	setup_timer(&dpcm->timer, loopback_timer_function,
+		    (unsigned long)dpcm);
+
+	cable = loopback->cables[substream->number][dev];
+	if (!cable) {
+		cable = kzalloc(sizeof(*cable), GFP_KERNEL);
+		if (!cable) {
+			kfree(dpcm);
+			err = -ENOMEM;
+			goto unlock;
+		}
+		spin_lock_init(&cable->lock);
+		cable->hw = loopback_pcm_hardware;
+		loopback->cables[substream->number][dev] = cable;
+	}
+	dpcm->cable = cable;
+	cable->streams[substream->stream] = dpcm;
+
+	snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+
+	runtime->private_data = dpcm;
+	runtime->private_free = loopback_runtime_free;
+	if (get_notify(dpcm) &&
+	    substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		runtime->hw = loopback_pcm_hardware;
+	} else {
+		runtime->hw = cable->hw;
+	}
+ unlock:
+	mutex_unlock(&loopback->cable_lock);
+	return err;
+}
+
+static int loopback_close(struct snd_pcm_substream *substream)
+{
+	struct loopback *loopback = substream->private_data;
+	struct loopback_pcm *dpcm = substream->runtime->private_data;
+	struct loopback_cable *cable;
+	int dev = get_cable_index(substream);
+
+	loopback_timer_stop(dpcm);
+	mutex_lock(&loopback->cable_lock);
+	cable = loopback->cables[substream->number][dev];
+	if (cable->streams[!substream->stream]) {
+		/* other stream is still alive */
+		cable->streams[substream->stream] = NULL;
+	} else {
+		/* free the cable */
+		loopback->cables[substream->number][dev] = NULL;
+		kfree(cable);
+	}
+	mutex_unlock(&loopback->cable_lock);
+	return 0;
+}
+
+static struct snd_pcm_ops loopback_playback_ops = {
+	.open =		loopback_open,
+	.close =	loopback_close,
+	.ioctl =	snd_pcm_lib_ioctl,
+	.hw_params =	loopback_hw_params,
+	.hw_free =	loopback_hw_free,
+	.prepare =	loopback_prepare,
+	.trigger =	loopback_trigger,
+	.pointer =	loopback_pointer,
+};
+
+static struct snd_pcm_ops loopback_capture_ops = {
+	.open =		loopback_open,
+	.close =	loopback_close,
+	.ioctl =	snd_pcm_lib_ioctl,
+	.hw_params =	loopback_hw_params,
+	.hw_free =	loopback_hw_free,
+	.prepare =	loopback_prepare,
+	.trigger =	loopback_trigger,
+	.pointer =	loopback_pointer,
+};
+
+static int __devinit loopback_pcm_new(struct loopback *loopback,
+				      int device, int substreams)
+{
+	struct snd_pcm *pcm;
+	int err;
+
+	err = snd_pcm_new(loopback->card, "Loopback PCM", device,
+			  substreams, substreams, &pcm);
+	if (err < 0)
+		return err;
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &loopback_playback_ops);
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &loopback_capture_ops);
+
+	pcm->private_data = loopback;
+	pcm->info_flags = 0;
+	strcpy(pcm->name, "Loopback PCM");
+
+	loopback->pcm[device] = pcm;
+
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
+			snd_dma_continuous_data(GFP_KERNEL),
+			0, 2 * 1024 * 1024);
+	return 0;
+}
+
+static int loopback_rate_shift_info(struct snd_kcontrol *kcontrol,   
+				    struct snd_ctl_elem_info *uinfo) 
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 80000;
+	uinfo->value.integer.max = 120000;
+	uinfo->value.integer.step = 1;
+	return 0;
+}                                  
+
+static int loopback_rate_shift_get(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
+{
+	struct loopback *loopback = snd_kcontrol_chip(kcontrol);
+	
+	ucontrol->value.integer.value[0] =
+		loopback->setup[kcontrol->id.subdevice]
+			       [kcontrol->id.device].rate_shift;
+	return 0;
+}
+
+static int loopback_rate_shift_put(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
+{
+	struct loopback *loopback = snd_kcontrol_chip(kcontrol);
+	unsigned int val;
+	int change = 0;
+
+	val = ucontrol->value.integer.value[0];
+	if (val < 80000)
+		val = 80000;
+	if (val > 120000)
+		val = 120000;	
+	mutex_lock(&loopback->cable_lock);
+	if (val != loopback->setup[kcontrol->id.subdevice]
+				  [kcontrol->id.device].rate_shift) {
+		loopback->setup[kcontrol->id.subdevice]
+			       [kcontrol->id.device].rate_shift = val;
+		change = 1;
+	}
+	mutex_unlock(&loopback->cable_lock);
+	return change;
+}
+
+static int loopback_notify_get(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct loopback *loopback = snd_kcontrol_chip(kcontrol);
+	
+	ucontrol->value.integer.value[0] =
+		loopback->setup[kcontrol->id.subdevice]
+			       [kcontrol->id.device].notify;
+	return 0;
+}
+
+static int loopback_notify_put(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct loopback *loopback = snd_kcontrol_chip(kcontrol);
+	unsigned int val;
+	int change = 0;
+
+	val = ucontrol->value.integer.value[0] ? 1 : 0;
+	if (val != loopback->setup[kcontrol->id.subdevice]
+				[kcontrol->id.device].notify) {
+		loopback->setup[kcontrol->id.subdevice]
+			[kcontrol->id.device].notify = val;
+		change = 1;
+	}
+	return change;
+}
+
+static int loopback_active_get(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct loopback *loopback = snd_kcontrol_chip(kcontrol);
+	struct loopback_cable *cable = loopback->cables
+				[kcontrol->id.subdevice][kcontrol->id.device];
+	unsigned int val = 0;
+
+	if (cable != NULL)
+		val = (cable->running & (1 << SNDRV_PCM_STREAM_PLAYBACK)) ?
+									1 : 0;
+	ucontrol->value.integer.value[0] = val;
+	return 0;
+}
+
+static int loopback_format_info(struct snd_kcontrol *kcontrol,   
+				struct snd_ctl_elem_info *uinfo) 
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = SNDRV_PCM_FORMAT_LAST;
+	uinfo->value.integer.step = 1;
+	return 0;
+}                                  
+
+static int loopback_format_get(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct loopback *loopback = snd_kcontrol_chip(kcontrol);
+	
+	ucontrol->value.integer.value[0] =
+		loopback->setup[kcontrol->id.subdevice]
+			       [kcontrol->id.device].format;
+	return 0;
+}
+
+static int loopback_rate_info(struct snd_kcontrol *kcontrol,   
+			      struct snd_ctl_elem_info *uinfo) 
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 192000;
+	uinfo->value.integer.step = 1;
+	return 0;
+}                                  
+
+static int loopback_rate_get(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct loopback *loopback = snd_kcontrol_chip(kcontrol);
+	
+	ucontrol->value.integer.value[0] =
+		loopback->setup[kcontrol->id.subdevice]
+			       [kcontrol->id.device].rate;
+	return 0;
+}
+
+static int loopback_channels_info(struct snd_kcontrol *kcontrol,   
+				  struct snd_ctl_elem_info *uinfo) 
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 1;
+	uinfo->value.integer.max = 1024;
+	uinfo->value.integer.step = 1;
+	return 0;
+}                                  
+
+static int loopback_channels_get(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct loopback *loopback = snd_kcontrol_chip(kcontrol);
+	
+	ucontrol->value.integer.value[0] =
+		loopback->setup[kcontrol->id.subdevice]
+			       [kcontrol->id.device].rate;
+	return 0;
+}
+
+static struct snd_kcontrol_new loopback_controls[]  __devinitdata = {
+{
+	.iface =        SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =         "PCM Rate Shift 100000",
+	.info =         loopback_rate_shift_info,
+	.get =          loopback_rate_shift_get,
+	.put =          loopback_rate_shift_put,
+},
+{
+	.iface =        SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =         "PCM Notify",
+	.info =         snd_ctl_boolean_mono_info,
+	.get =          loopback_notify_get,
+	.put =          loopback_notify_put,
+},
+#define ACTIVE_IDX 2
+{
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
+	.iface =        SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =         "PCM Slave Active",
+	.info =         snd_ctl_boolean_mono_info,
+	.get =          loopback_active_get,
+},
+#define FORMAT_IDX 3
+{
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
+	.iface =        SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =         "PCM Slave Format",
+	.info =         loopback_format_info,
+	.get =          loopback_format_get
+},
+#define RATE_IDX 4
+{
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
+	.iface =        SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =         "PCM Slave Rate",
+	.info =         loopback_rate_info,
+	.get =          loopback_rate_get
+},
+#define CHANNELS_IDX 5
+{
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
+	.iface =        SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =         "PCM Slave Channels",
+	.info =         loopback_channels_info,
+	.get =          loopback_channels_get
+}
+};
+
+static int __devinit loopback_mixer_new(struct loopback *loopback, int notify)
+{
+	struct snd_card *card = loopback->card;
+	struct snd_pcm *pcm;
+	struct snd_kcontrol *kctl;
+	struct loopback_setup *setup;
+	int err, dev, substr, substr_count, idx;
+
+	strcpy(card->mixername, "Loopback Mixer");
+	for (dev = 0; dev < 2; dev++) {
+		pcm = loopback->pcm[dev];
+		substr_count =
+		    pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream_count;
+		for (substr = 0; substr < substr_count; substr++) {
+			setup = &loopback->setup[substr][dev];
+			setup->notify = notify;
+			setup->rate_shift = NO_PITCH;
+			setup->format = SNDRV_PCM_FORMAT_S16_LE;
+			setup->rate = 48000;
+			setup->channels = 2;
+			for (idx = 0; idx < ARRAY_SIZE(loopback_controls);
+									idx++) {
+				kctl = snd_ctl_new1(&loopback_controls[idx],
+						    loopback);
+				if (!kctl)
+					return -ENOMEM;
+				kctl->id.device = dev;
+				kctl->id.subdevice = substr;
+				switch (idx) {
+				case ACTIVE_IDX:
+					setup->active_id = kctl->id;
+					break;
+				case FORMAT_IDX:
+					setup->format_id = kctl->id;
+					break;
+				case RATE_IDX:
+					setup->rate_id = kctl->id;
+					break;
+				case CHANNELS_IDX:
+					setup->channels_id = kctl->id;
+					break;
+				default:
+					break;
+				}
+				err = snd_ctl_add(card, kctl);
+				if (err < 0)
+					return err;
+			}
+		}
+	}
+	return 0;
+}
+
+static int __devinit loopback_probe(struct platform_device *devptr)
+{
+	struct snd_card *card;
+	struct loopback *loopback;
+	int dev = devptr->id;
+	int err;
+
+	err = snd_card_create(index[dev], id[dev], THIS_MODULE,
+			      sizeof(struct loopback), &card);
+	if (err < 0)
+		return err;
+	loopback = card->private_data;
+
+	if (pcm_substreams[dev] < 1)
+		pcm_substreams[dev] = 1;
+	if (pcm_substreams[dev] > MAX_PCM_SUBSTREAMS)
+		pcm_substreams[dev] = MAX_PCM_SUBSTREAMS;
+	
+	loopback->card = card;
+	mutex_init(&loopback->cable_lock);
+
+	err = loopback_pcm_new(loopback, 0, pcm_substreams[dev]);
+	if (err < 0)
+		goto __nodev;
+	err = loopback_pcm_new(loopback, 1, pcm_substreams[dev]);
+	if (err < 0)
+		goto __nodev;
+	err = loopback_mixer_new(loopback, pcm_notify[dev] ? 1 : 0);
+	if (err < 0)
+		goto __nodev;
+	strcpy(card->driver, "Loopback");
+	strcpy(card->shortname, "Loopback");
+	sprintf(card->longname, "Loopback %i", dev + 1);
+	err = snd_card_register(card);
+	if (!err) {
+		platform_set_drvdata(devptr, card);
+		return 0;
+	}
+      __nodev:
+	snd_card_free(card);
+	return err;
+}
+
+static int __devexit loopback_remove(struct platform_device *devptr)
+{
+	snd_card_free(platform_get_drvdata(devptr));
+	platform_set_drvdata(devptr, NULL);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int loopback_suspend(struct platform_device *pdev,
+				pm_message_t state)
+{
+	struct snd_card *card = platform_get_drvdata(pdev);
+	struct loopback *loopback = card->private_data;
+
+	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+
+	snd_pcm_suspend_all(loopback->pcm[0]);
+	snd_pcm_suspend_all(loopback->pcm[1]);
+	return 0;
+}
+	
+static int loopback_resume(struct platform_device *pdev)
+{
+	struct snd_card *card = platform_get_drvdata(pdev);
+
+	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+	return 0;
+}
+#endif
+
+#define SND_LOOPBACK_DRIVER	"snd_aloop"
+
+static struct platform_driver loopback_driver = {
+	.probe		= loopback_probe,
+	.remove		= __devexit_p(loopback_remove),
+#ifdef CONFIG_PM
+	.suspend	= loopback_suspend,
+	.resume		= loopback_resume,
+#endif
+	.driver		= {
+		.name	= SND_LOOPBACK_DRIVER
+	},
+};
+
+static void loopback_unregister_all(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(devices); ++i)
+		platform_device_unregister(devices[i]);
+	platform_driver_unregister(&loopback_driver);
+}
+
+static int __init alsa_card_loopback_init(void)
+{
+	int i, err, cards;
+
+	err = platform_driver_register(&loopback_driver);
+	if (err < 0)
+		return err;
+
+
+	cards = 0;
+	for (i = 0; i < SNDRV_CARDS; i++) {
+		struct platform_device *device;
+		if (!enable[i])
+			continue;
+		device = platform_device_register_simple(SND_LOOPBACK_DRIVER,
+							 i, NULL, 0);
+		if (IS_ERR(device))
+			continue;
+		if (!platform_get_drvdata(device)) {
+			platform_device_unregister(device);
+			continue;
+		}
+		devices[i] = device;
+		cards++;
+	}
+	if (!cards) {
+#ifdef MODULE
+		printk(KERN_ERR "aloop: No loopback enabled\n");
+#endif
+		loopback_unregister_all();
+		return -ENODEV;
+	}
+	return 0;
+}
+
+static void __exit alsa_card_loopback_exit(void)
+{
+	loopback_unregister_all();
+}
+
+module_init(alsa_card_loopback_init)
+module_exit(alsa_card_loopback_exit)
diff --git a/sound/isa/Kconfig b/sound/isa/Kconfig
index c6990c6..52064cf 100644
--- a/sound/isa/Kconfig
+++ b/sound/isa/Kconfig
@@ -77,6 +77,32 @@
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-als100.
 
+config SND_AZT1605
+	tristate "Aztech AZT1605 Driver"
+	depends on SND
+	select SND_WSS_LIB
+	select SND_MPU401_UART
+	select SND_OPL3_LIB
+	help
+	  Say Y here to include support for Aztech Sound Galaxy cards
+	  based on the AZT1605 chipset.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-azt1605.
+
+config SND_AZT2316
+	tristate "Aztech AZT2316 Driver"
+	depends on SND
+	select SND_WSS_LIB
+	select SND_MPU401_UART
+	select SND_OPL3_LIB
+	help
+	  Say Y here to include support for Aztech Sound Galaxy cards
+	  based on the AZT2316 chipset.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-azt2316.
+
 config SND_AZT2320
 	tristate "Aztech Systems AZT2320"
 	depends on PNP
@@ -351,16 +377,6 @@
 	  coprocessor can do variable tasks like various compression and
 	  decompression algorithms.
 
-config SND_SGALAXY
-	tristate "Aztech Sound Galaxy"
-	select SND_WSS_LIB
-	help
-	  Say Y here to include support for Aztech Sound Galaxy
-	  soundcards.
-
-	  To compile this driver as a module, choose M here: the module
-	  will be called snd-sgalaxy.
-
 config SND_SSCAPE
 	tristate "Ensoniq SoundScape driver"
 	select SND_MPU401_UART
diff --git a/sound/isa/Makefile b/sound/isa/Makefile
index c73d30c..8d781e4 100644
--- a/sound/isa/Makefile
+++ b/sound/isa/Makefile
@@ -10,7 +10,6 @@
 snd-es18xx-objs := es18xx.o
 snd-opl3sa2-objs := opl3sa2.o
 snd-sc6000-objs := sc6000.o
-snd-sgalaxy-objs := sgalaxy.o
 snd-sscape-objs := sscape.o
 
 # Toplevel Module Dependency
@@ -21,8 +20,7 @@
 obj-$(CONFIG_SND_ES18XX) += snd-es18xx.o
 obj-$(CONFIG_SND_OPL3SA2) += snd-opl3sa2.o
 obj-$(CONFIG_SND_SC6000) += snd-sc6000.o
-obj-$(CONFIG_SND_SGALAXY) += snd-sgalaxy.o
 obj-$(CONFIG_SND_SSCAPE) += snd-sscape.o
 
-obj-$(CONFIG_SND) += ad1816a/ ad1848/ cs423x/ es1688/ gus/ msnd/ opti9xx/ \
+obj-$(CONFIG_SND) += ad1816a/ ad1848/ cs423x/ es1688/ galaxy/ gus/ msnd/ opti9xx/ \
 		     sb/ wavefront/ wss/
diff --git a/sound/isa/galaxy/Makefile b/sound/isa/galaxy/Makefile
new file mode 100644
index 0000000..e307066
--- /dev/null
+++ b/sound/isa/galaxy/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for ALSA
+# Copyright (c) 2001 by Jaroslav Kysela <perex@suse.cz>
+#
+
+snd-azt1605-objs := azt1605.o
+snd-azt2316-objs := azt2316.o
+
+obj-$(CONFIG_SND_AZT1605) += snd-azt1605.o
+obj-$(CONFIG_SND_AZT2316) += snd-azt2316.o
diff --git a/sound/isa/galaxy/azt1605.c b/sound/isa/galaxy/azt1605.c
new file mode 100644
index 0000000..9a97643
--- /dev/null
+++ b/sound/isa/galaxy/azt1605.c
@@ -0,0 +1,91 @@
+/*
+ * Aztech AZT1605 Driver
+ * Copyright (C) 2007,2010  Rene Herman
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#define AZT1605
+
+#define CRD_NAME "Aztech AZT1605"
+#define DRV_NAME "AZT1605"
+#define DEV_NAME "azt1605"
+
+#define GALAXY_DSP_MAJOR		2
+#define GALAXY_DSP_MINOR		1
+
+#define GALAXY_CONFIG_SIZE		3
+
+/*
+ * 24-bit config register
+ */
+
+#define GALAXY_CONFIG_SBA_220		(0 << 0)
+#define GALAXY_CONFIG_SBA_240		(1 << 0)
+#define GALAXY_CONFIG_SBA_260		(2 << 0)
+#define GALAXY_CONFIG_SBA_280		(3 << 0)
+#define GALAXY_CONFIG_SBA_MASK		GALAXY_CONFIG_SBA_280
+
+#define GALAXY_CONFIG_MPUA_300		(0 << 2)
+#define GALAXY_CONFIG_MPUA_330		(1 << 2)
+
+#define GALAXY_CONFIG_MPU_ENABLE	(1 << 3)
+
+#define GALAXY_CONFIG_GAME_ENABLE	(1 << 4)
+
+#define GALAXY_CONFIG_CD_PANASONIC	(1 << 5)
+#define GALAXY_CONFIG_CD_MITSUMI	(1 << 6)
+#define GALAXY_CONFIG_CD_MASK		(\
+	GALAXY_CONFIG_CD_PANASONIC | GALAXY_CONFIG_CD_MITSUMI)
+
+#define GALAXY_CONFIG_UNUSED		(1 << 7)
+#define GALAXY_CONFIG_UNUSED_MASK	GALAXY_CONFIG_UNUSED
+
+#define GALAXY_CONFIG_SBIRQ_2		(1 << 8)
+#define GALAXY_CONFIG_SBIRQ_3		(1 << 9)
+#define GALAXY_CONFIG_SBIRQ_5		(1 << 10)
+#define GALAXY_CONFIG_SBIRQ_7		(1 << 11)
+
+#define GALAXY_CONFIG_MPUIRQ_2		(1 << 12)
+#define GALAXY_CONFIG_MPUIRQ_3		(1 << 13)
+#define GALAXY_CONFIG_MPUIRQ_5		(1 << 14)
+#define GALAXY_CONFIG_MPUIRQ_7		(1 << 15)
+
+#define GALAXY_CONFIG_WSSA_530		(0 << 16)
+#define GALAXY_CONFIG_WSSA_604		(1 << 16)
+#define GALAXY_CONFIG_WSSA_E80		(2 << 16)
+#define GALAXY_CONFIG_WSSA_F40		(3 << 16)
+
+#define GALAXY_CONFIG_WSS_ENABLE	(1 << 18)
+
+#define GALAXY_CONFIG_CDIRQ_11		(1 << 19)
+#define GALAXY_CONFIG_CDIRQ_12		(1 << 20)
+#define GALAXY_CONFIG_CDIRQ_15		(1 << 21)
+#define GALAXY_CONFIG_CDIRQ_MASK	(\
+	GALAXY_CONFIG_CDIRQ_11 | GALAXY_CONFIG_CDIRQ_12 |\
+	GALAXY_CONFIG_CDIRQ_15)
+
+#define GALAXY_CONFIG_CDDMA_DISABLE	(0 << 22)
+#define GALAXY_CONFIG_CDDMA_0		(1 << 22)
+#define GALAXY_CONFIG_CDDMA_1		(2 << 22)
+#define GALAXY_CONFIG_CDDMA_3		(3 << 22)
+#define GALAXY_CONFIG_CDDMA_MASK	GALAXY_CONFIG_CDDMA_3
+
+#define GALAXY_CONFIG_MASK		(\
+	GALAXY_CONFIG_SBA_MASK | GALAXY_CONFIG_CD_MASK |\
+	GALAXY_CONFIG_UNUSED_MASK | GALAXY_CONFIG_CDIRQ_MASK |\
+	GALAXY_CONFIG_CDDMA_MASK)
+
+#include "galaxy.c"
diff --git a/sound/isa/galaxy/azt2316.c b/sound/isa/galaxy/azt2316.c
new file mode 100644
index 0000000..1894411
--- /dev/null
+++ b/sound/isa/galaxy/azt2316.c
@@ -0,0 +1,111 @@
+/*
+ * Aztech AZT2316 Driver
+ * Copyright (C) 2007,2010  Rene Herman
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#define AZT2316
+
+#define CRD_NAME "Aztech AZT2316"
+#define DRV_NAME "AZT2316"
+#define DEV_NAME "azt2316"
+
+#define GALAXY_DSP_MAJOR		3
+#define GALAXY_DSP_MINOR		1
+
+#define GALAXY_CONFIG_SIZE		4
+
+/*
+ * 32-bit config register
+ */
+
+#define GALAXY_CONFIG_SBA_220		(0 << 0)
+#define GALAXY_CONFIG_SBA_240		(1 << 0)
+#define GALAXY_CONFIG_SBA_260		(2 << 0)
+#define GALAXY_CONFIG_SBA_280		(3 << 0)
+#define GALAXY_CONFIG_SBA_MASK		GALAXY_CONFIG_SBA_280
+
+#define GALAXY_CONFIG_SBIRQ_2		(1 << 2)
+#define GALAXY_CONFIG_SBIRQ_5		(1 << 3)
+#define GALAXY_CONFIG_SBIRQ_7		(1 << 4)
+#define GALAXY_CONFIG_SBIRQ_10		(1 << 5)
+
+#define GALAXY_CONFIG_SBDMA_DISABLE	(0 << 6)
+#define GALAXY_CONFIG_SBDMA_0		(1 << 6)
+#define GALAXY_CONFIG_SBDMA_1		(2 << 6)
+#define GALAXY_CONFIG_SBDMA_3		(3 << 6)
+
+#define GALAXY_CONFIG_WSSA_530		(0 << 8)
+#define GALAXY_CONFIG_WSSA_604		(1 << 8)
+#define GALAXY_CONFIG_WSSA_E80		(2 << 8)
+#define GALAXY_CONFIG_WSSA_F40		(3 << 8)
+
+#define GALAXY_CONFIG_WSS_ENABLE	(1 << 10)
+
+#define GALAXY_CONFIG_GAME_ENABLE	(1 << 11)
+
+#define GALAXY_CONFIG_MPUA_300		(0 << 12)
+#define GALAXY_CONFIG_MPUA_330		(1 << 12)
+
+#define GALAXY_CONFIG_MPU_ENABLE	(1 << 13)
+
+#define GALAXY_CONFIG_CDA_310		(0 << 14)
+#define GALAXY_CONFIG_CDA_320		(1 << 14)
+#define GALAXY_CONFIG_CDA_340		(2 << 14)
+#define GALAXY_CONFIG_CDA_350		(3 << 14)
+#define GALAXY_CONFIG_CDA_MASK		GALAXY_CONFIG_CDA_350
+
+#define GALAXY_CONFIG_CD_DISABLE	(0 << 16)
+#define GALAXY_CONFIG_CD_PANASONIC	(1 << 16)
+#define GALAXY_CONFIG_CD_SONY		(2 << 16)
+#define GALAXY_CONFIG_CD_MITSUMI	(3 << 16)
+#define GALAXY_CONFIG_CD_AZTECH		(4 << 16)
+#define GALAXY_CONFIG_CD_UNUSED_5	(5 << 16)
+#define GALAXY_CONFIG_CD_UNUSED_6	(6 << 16)
+#define GALAXY_CONFIG_CD_UNUSED_7	(7 << 16)
+#define GALAXY_CONFIG_CD_MASK		GALAXY_CONFIG_CD_UNUSED_7
+
+#define GALAXY_CONFIG_CDDMA8_DISABLE	(0 << 20)
+#define GALAXY_CONFIG_CDDMA8_0		(1 << 20)
+#define GALAXY_CONFIG_CDDMA8_1		(2 << 20)
+#define GALAXY_CONFIG_CDDMA8_3		(3 << 20)
+#define GALAXY_CONFIG_CDDMA8_MASK	GALAXY_CONFIG_CDDMA8_3
+
+#define GALAXY_CONFIG_CDDMA16_DISABLE	(0 << 22)
+#define GALAXY_CONFIG_CDDMA16_5		(1 << 22)
+#define GALAXY_CONFIG_CDDMA16_6		(2 << 22)
+#define GALAXY_CONFIG_CDDMA16_7		(3 << 22)
+#define GALAXY_CONFIG_CDDMA16_MASK	GALAXY_CONFIG_CDDMA16_7
+
+#define GALAXY_CONFIG_MPUIRQ_2		(1 << 24)
+#define GALAXY_CONFIG_MPUIRQ_5		(1 << 25)
+#define GALAXY_CONFIG_MPUIRQ_7		(1 << 26)
+#define GALAXY_CONFIG_MPUIRQ_10		(1 << 27)
+
+#define GALAXY_CONFIG_CDIRQ_5		(1 << 28)
+#define GALAXY_CONFIG_CDIRQ_11		(1 << 29)
+#define GALAXY_CONFIG_CDIRQ_12		(1 << 30)
+#define GALAXY_CONFIG_CDIRQ_15		(1 << 31)
+#define GALAXY_CONFIG_CDIRQ_MASK	(\
+	GALAXY_CONFIG_CDIRQ_5 | GALAXY_CONFIG_CDIRQ_11 |\
+	GALAXY_CONFIG_CDIRQ_12 | GALAXY_CONFIG_CDIRQ_15)
+
+#define GALAXY_CONFIG_MASK		(\
+	GALAXY_CONFIG_SBA_MASK | GALAXY_CONFIG_CDA_MASK |\
+	GALAXY_CONFIG_CD_MASK | GALAXY_CONFIG_CDDMA16_MASK |\
+	GALAXY_CONFIG_CDDMA8_MASK | GALAXY_CONFIG_CDIRQ_MASK)
+
+#include "galaxy.c"
diff --git a/sound/isa/galaxy/galaxy.c b/sound/isa/galaxy/galaxy.c
new file mode 100644
index 0000000..ee54df0
--- /dev/null
+++ b/sound/isa/galaxy/galaxy.c
@@ -0,0 +1,652 @@
+/*
+ * Aztech AZT1605/AZT2316 Driver
+ * Copyright (C) 2007,2010  Rene Herman
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/isa.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <asm/processor.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/wss.h>
+#include <sound/mpu401.h>
+#include <sound/opl3.h>
+
+MODULE_DESCRIPTION(CRD_NAME);
+MODULE_AUTHOR("Rene Herman");
+MODULE_LICENSE("GPL");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
+
+static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
+static long wss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
+static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
+static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
+static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
+static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
+static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
+static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
+
+module_param_array(port, long, NULL, 0444);
+MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
+module_param_array(wss_port, long, NULL, 0444);
+MODULE_PARM_DESC(wss_port, "WSS port # for " CRD_NAME " driver.");
+module_param_array(mpu_port, long, NULL, 0444);
+MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
+module_param_array(fm_port, long, NULL, 0444);
+MODULE_PARM_DESC(fm_port, "FM port # for " CRD_NAME " driver.");
+module_param_array(irq, int, NULL, 0444);
+MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
+module_param_array(mpu_irq, int, NULL, 0444);
+MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
+module_param_array(dma1, int, NULL, 0444);
+MODULE_PARM_DESC(dma1, "Playback DMA # for " CRD_NAME " driver.");
+module_param_array(dma2, int, NULL, 0444);
+MODULE_PARM_DESC(dma2, "Capture DMA # for " CRD_NAME " driver.");
+
+/*
+ * Generic SB DSP support routines
+ */
+
+#define DSP_PORT_RESET		0x6
+#define DSP_PORT_READ		0xa
+#define DSP_PORT_COMMAND	0xc
+#define DSP_PORT_STATUS		0xc
+#define DSP_PORT_DATA_AVAIL	0xe
+
+#define DSP_SIGNATURE		0xaa
+
+#define DSP_COMMAND_GET_VERSION	0xe1
+
+static int __devinit dsp_get_byte(void __iomem *port, u8 *val)
+{
+	int loops = 1000;
+
+	while (!(ioread8(port + DSP_PORT_DATA_AVAIL) & 0x80)) {
+		if (!loops--)
+			return -EIO;
+		cpu_relax();
+	}
+	*val = ioread8(port + DSP_PORT_READ);
+	return 0;
+}
+
+static int __devinit dsp_reset(void __iomem *port)
+{
+	u8 val;
+
+	iowrite8(1, port + DSP_PORT_RESET);
+	udelay(10);
+	iowrite8(0, port + DSP_PORT_RESET);
+
+	if (dsp_get_byte(port, &val) < 0 || val != DSP_SIGNATURE)
+		return -ENODEV;
+
+	return 0;
+}
+
+static int __devinit dsp_command(void __iomem *port, u8 cmd)
+{
+	int loops = 1000;
+
+	while (ioread8(port + DSP_PORT_STATUS) & 0x80) {
+		if (!loops--)
+			return -EIO;
+		cpu_relax();
+	}
+	iowrite8(cmd, port + DSP_PORT_COMMAND);
+	return 0;
+}
+
+static int __devinit dsp_get_version(void __iomem *port, u8 *major, u8 *minor)
+{
+	int err;
+
+	err = dsp_command(port, DSP_COMMAND_GET_VERSION);
+	if (err < 0)
+		return err;
+
+	err = dsp_get_byte(port, major);
+	if (err < 0)
+		return err;
+
+	err = dsp_get_byte(port, minor);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+/*
+ * Generic WSS support routines
+ */
+
+#define WSS_CONFIG_DMA_0	(1 << 0)
+#define WSS_CONFIG_DMA_1	(2 << 0)
+#define WSS_CONFIG_DMA_3	(3 << 0)
+#define WSS_CONFIG_DUPLEX	(1 << 2)
+#define WSS_CONFIG_IRQ_7	(1 << 3)
+#define WSS_CONFIG_IRQ_9	(2 << 3)
+#define WSS_CONFIG_IRQ_10	(3 << 3)
+#define WSS_CONFIG_IRQ_11	(4 << 3)
+
+#define WSS_PORT_CONFIG		0
+#define WSS_PORT_SIGNATURE	3
+
+#define WSS_SIGNATURE		4
+
+static int __devinit wss_detect(void __iomem *wss_port)
+{
+	if ((ioread8(wss_port + WSS_PORT_SIGNATURE) & 0x3f) != WSS_SIGNATURE)
+		return -ENODEV;
+
+	return 0;
+}
+
+static void wss_set_config(void __iomem *wss_port, u8 wss_config)
+{
+	iowrite8(wss_config, wss_port + WSS_PORT_CONFIG);
+}
+
+/*
+ * Aztech Sound Galaxy specifics
+ */
+
+#define GALAXY_PORT_CONFIG	1024
+#define CONFIG_PORT_SET		4
+
+#define DSP_COMMAND_GALAXY_8	8
+#define GALAXY_COMMAND_GET_TYPE	5
+
+#define DSP_COMMAND_GALAXY_9	9
+#define GALAXY_COMMAND_WSSMODE	0
+#define GALAXY_COMMAND_SB8MODE	1
+
+#define GALAXY_MODE_WSS		GALAXY_COMMAND_WSSMODE
+#define GALAXY_MODE_SB8		GALAXY_COMMAND_SB8MODE
+
+struct snd_galaxy {
+	void __iomem *port;
+	void __iomem *config_port;
+	void __iomem *wss_port;
+	u32 config;
+	struct resource *res_port;
+	struct resource *res_config_port;
+	struct resource *res_wss_port;
+};
+
+static u32 config[SNDRV_CARDS];
+static u8 wss_config[SNDRV_CARDS];
+
+static int __devinit snd_galaxy_match(struct device *dev, unsigned int n)
+{
+	if (!enable[n])
+		return 0;
+
+	switch (port[n]) {
+	case SNDRV_AUTO_PORT:
+		dev_err(dev, "please specify port\n");
+		return 0;
+	case 0x220:
+		config[n] |= GALAXY_CONFIG_SBA_220;
+		break;
+	case 0x240:
+		config[n] |= GALAXY_CONFIG_SBA_240;
+		break;
+	case 0x260:
+		config[n] |= GALAXY_CONFIG_SBA_260;
+		break;
+	case 0x280:
+		config[n] |= GALAXY_CONFIG_SBA_280;
+		break;
+	default:
+		dev_err(dev, "invalid port %#lx\n", port[n]);
+		return 0;
+	}
+
+	switch (wss_port[n]) {
+	case SNDRV_AUTO_PORT:
+		dev_err(dev,  "please specify wss_port\n");
+		return 0;
+	case 0x530:
+		config[n] |= GALAXY_CONFIG_WSS_ENABLE | GALAXY_CONFIG_WSSA_530;
+		break;
+	case 0x604:
+		config[n] |= GALAXY_CONFIG_WSS_ENABLE | GALAXY_CONFIG_WSSA_604;
+		break;
+	case 0xe80:
+		config[n] |= GALAXY_CONFIG_WSS_ENABLE | GALAXY_CONFIG_WSSA_E80;
+		break;
+	case 0xf40:
+		config[n] |= GALAXY_CONFIG_WSS_ENABLE | GALAXY_CONFIG_WSSA_F40;
+		break;
+	default:
+		dev_err(dev, "invalid WSS port %#lx\n", wss_port[n]);
+		return 0;
+	}
+
+	switch (irq[n]) {
+	case SNDRV_AUTO_IRQ:
+		dev_err(dev,  "please specify irq\n");
+		return 0;
+	case 7:
+		wss_config[n] |= WSS_CONFIG_IRQ_7;
+		break;
+	case 2:
+		irq[n] = 9;
+	case 9:
+		wss_config[n] |= WSS_CONFIG_IRQ_9;
+		break;
+	case 10:
+		wss_config[n] |= WSS_CONFIG_IRQ_10;
+		break;
+	case 11:
+		wss_config[n] |= WSS_CONFIG_IRQ_11;
+		break;
+	default:
+		dev_err(dev, "invalid IRQ %d\n", irq[n]);
+		return 0;
+	}
+
+	switch (dma1[n]) {
+	case SNDRV_AUTO_DMA:
+		dev_err(dev,  "please specify dma1\n");
+		return 0;
+	case 0:
+		wss_config[n] |= WSS_CONFIG_DMA_0;
+		break;
+	case 1:
+		wss_config[n] |= WSS_CONFIG_DMA_1;
+		break;
+	case 3:
+		wss_config[n] |= WSS_CONFIG_DMA_3;
+		break;
+	default:
+		dev_err(dev, "invalid playback DMA %d\n", dma1[n]);
+		return 0;
+	}
+
+	if (dma2[n] == SNDRV_AUTO_DMA || dma2[n] == dma1[n]) {
+		dma2[n] = -1;
+		goto mpu;
+	}
+
+	wss_config[n] |= WSS_CONFIG_DUPLEX;
+	switch (dma2[n]) {
+	case 0:
+		break;
+	case 1:
+		if (dma1[n] == 0)
+			break;
+	default:
+		dev_err(dev, "invalid capture DMA %d\n", dma2[n]);
+		return 0;
+	}
+
+mpu:
+	switch (mpu_port[n]) {
+	case SNDRV_AUTO_PORT:
+		dev_warn(dev, "mpu_port not specified; not using MPU-401\n");
+		mpu_port[n] = -1;
+		goto fm;
+	case 0x300:
+		config[n] |= GALAXY_CONFIG_MPU_ENABLE | GALAXY_CONFIG_MPUA_300;
+		break;
+	case 0x330:
+		config[n] |= GALAXY_CONFIG_MPU_ENABLE | GALAXY_CONFIG_MPUA_330;
+		break;
+	default:
+		dev_err(dev, "invalid MPU port %#lx\n", mpu_port[n]);
+		return 0;
+	}
+
+	switch (mpu_irq[n]) {
+	case SNDRV_AUTO_IRQ:
+		dev_warn(dev, "mpu_irq not specified: using polling mode\n");
+		mpu_irq[n] = -1;
+		break;
+	case 2:
+		mpu_irq[n] = 9;
+	case 9:
+		config[n] |= GALAXY_CONFIG_MPUIRQ_2;
+		break;
+#ifdef AZT1605
+	case 3:
+		config[n] |= GALAXY_CONFIG_MPUIRQ_3;
+		break;
+#endif
+	case 5:
+		config[n] |= GALAXY_CONFIG_MPUIRQ_5;
+		break;
+	case 7:
+		config[n] |= GALAXY_CONFIG_MPUIRQ_7;
+		break;
+#ifdef AZT2316
+	case 10:
+		config[n] |= GALAXY_CONFIG_MPUIRQ_10;
+		break;
+#endif
+	default:
+		dev_err(dev, "invalid MPU IRQ %d\n", mpu_irq[n]);
+		return 0;
+	}
+
+	if (mpu_irq[n] == irq[n]) {
+		dev_err(dev, "cannot share IRQ between WSS and MPU-401\n");
+		return 0;
+	}
+
+fm:
+	switch (fm_port[n]) {
+	case SNDRV_AUTO_PORT:
+		dev_warn(dev, "fm_port not specified: not using OPL3\n");
+		fm_port[n] = -1;
+		break;
+	case 0x388:
+		break;
+	default:
+		dev_err(dev, "illegal FM port %#lx\n", fm_port[n]);
+		return 0;
+	}
+
+	config[n] |= GALAXY_CONFIG_GAME_ENABLE;
+	return 1;
+}
+
+static int __devinit galaxy_init(struct snd_galaxy *galaxy, u8 *type)
+{
+	u8 major;
+	u8 minor;
+	int err;
+
+	err = dsp_reset(galaxy->port);
+	if (err < 0)
+		return err;
+
+	err = dsp_get_version(galaxy->port, &major, &minor);
+	if (err < 0)
+		return err;
+
+	if (major != GALAXY_DSP_MAJOR || minor != GALAXY_DSP_MINOR)
+		return -ENODEV;
+
+	err = dsp_command(galaxy->port, DSP_COMMAND_GALAXY_8);
+	if (err < 0)
+		return err;
+
+	err = dsp_command(galaxy->port, GALAXY_COMMAND_GET_TYPE);
+	if (err < 0)
+		return err;
+
+	err = dsp_get_byte(galaxy->port, type);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+static int __devinit galaxy_set_mode(struct snd_galaxy *galaxy, u8 mode)
+{
+	int err;
+
+	err = dsp_command(galaxy->port, DSP_COMMAND_GALAXY_9);
+	if (err < 0)
+		return err;
+
+	err = dsp_command(galaxy->port, mode);
+	if (err < 0)
+		return err;
+
+#ifdef AZT1605
+	/*
+	 * Needed for MPU IRQ on AZT1605, but AZT2316 loses WSS again
+	 */
+	err = dsp_reset(galaxy->port);
+	if (err < 0)
+		return err;
+#endif
+
+	return 0;
+}
+
+static void galaxy_set_config(struct snd_galaxy *galaxy, u32 config)
+{
+	u8 tmp = ioread8(galaxy->config_port + CONFIG_PORT_SET);
+	int i;
+
+	iowrite8(tmp | 0x80, galaxy->config_port + CONFIG_PORT_SET);
+	for (i = 0; i < GALAXY_CONFIG_SIZE; i++) {
+		iowrite8(config, galaxy->config_port + i);
+		config >>= 8;
+	}
+	iowrite8(tmp & 0x7f, galaxy->config_port + CONFIG_PORT_SET);
+	msleep(10);
+}
+
+static void __devinit galaxy_config(struct snd_galaxy *galaxy, u32 config)
+{
+	int i;
+
+	for (i = GALAXY_CONFIG_SIZE; i; i--) {
+		u8 tmp = ioread8(galaxy->config_port + i - 1);
+		galaxy->config = (galaxy->config << 8) | tmp;
+	}
+	config |= galaxy->config & GALAXY_CONFIG_MASK;
+	galaxy_set_config(galaxy, config);
+}
+
+static int __devinit galaxy_wss_config(struct snd_galaxy *galaxy, u8 wss_config)
+{
+	int err;
+
+	err = wss_detect(galaxy->wss_port);
+	if (err < 0)
+		return err;
+
+	wss_set_config(galaxy->wss_port, wss_config);
+
+	err = galaxy_set_mode(galaxy, GALAXY_MODE_WSS);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+static void snd_galaxy_free(struct snd_card *card)
+{
+	struct snd_galaxy *galaxy = card->private_data;
+
+	if (galaxy->wss_port) {
+		wss_set_config(galaxy->wss_port, 0);
+		ioport_unmap(galaxy->wss_port);
+		release_and_free_resource(galaxy->res_wss_port);
+	}
+	if (galaxy->config_port) {
+		galaxy_set_config(galaxy, galaxy->config);
+		ioport_unmap(galaxy->config_port);
+		release_and_free_resource(galaxy->res_config_port);
+	}
+	if (galaxy->port) {
+		ioport_unmap(galaxy->port);
+		release_and_free_resource(galaxy->res_port);
+	}
+}
+
+static int __devinit snd_galaxy_probe(struct device *dev, unsigned int n)
+{
+	struct snd_galaxy *galaxy;
+	struct snd_wss *chip;
+	struct snd_card *card;
+	u8 type;
+	int err;
+
+	err = snd_card_create(index[n], id[n], THIS_MODULE, sizeof *galaxy,
+			      &card);
+	if (err < 0)
+		return err;
+
+	snd_card_set_dev(card, dev);
+
+	card->private_free = snd_galaxy_free;
+	galaxy = card->private_data;
+
+	galaxy->res_port = request_region(port[n], 16, DRV_NAME);
+	if (!galaxy->res_port) {
+		dev_err(dev, "could not grab ports %#lx-%#lx\n", port[n],
+			port[n] + 15);
+		err = -EBUSY;
+		goto error;
+	}
+	galaxy->port = ioport_map(port[n], 16);
+
+	err = galaxy_init(galaxy, &type);
+	if (err < 0) {
+		dev_err(dev, "did not find a Sound Galaxy at %#lx\n", port[n]);
+		goto error;
+	}
+	dev_info(dev, "Sound Galaxy (type %d) found at %#lx\n", type, port[n]);
+
+	galaxy->res_config_port = request_region(port[n] + GALAXY_PORT_CONFIG,
+						 16, DRV_NAME);
+	if (!galaxy->res_config_port) {
+		dev_err(dev, "could not grab ports %#lx-%#lx\n",
+			port[n] + GALAXY_PORT_CONFIG,
+			port[n] + GALAXY_PORT_CONFIG + 15);
+		err = -EBUSY;
+		goto error;
+	}
+	galaxy->config_port = ioport_map(port[n] + GALAXY_PORT_CONFIG, 16);
+
+	galaxy_config(galaxy, config[n]);
+
+	galaxy->res_wss_port = request_region(wss_port[n], 4, DRV_NAME);
+	if (!galaxy->res_wss_port)  {
+		dev_err(dev, "could not grab ports %#lx-%#lx\n", wss_port[n],
+			wss_port[n] + 3);
+		err = -EBUSY;
+		goto error;
+	}
+	galaxy->wss_port = ioport_map(wss_port[n], 4);
+
+	err = galaxy_wss_config(galaxy, wss_config[n]);
+	if (err < 0) {
+		dev_err(dev, "could not configure WSS\n");
+		goto error;
+	}
+
+	strcpy(card->driver, DRV_NAME);
+	strcpy(card->shortname, DRV_NAME);
+	sprintf(card->longname, "%s at %#lx/%#lx, irq %d, dma %d/%d",
+		card->shortname, port[n], wss_port[n], irq[n], dma1[n],
+		dma2[n]);
+
+	err = snd_wss_create(card, wss_port[n] + 4, -1, irq[n], dma1[n],
+			     dma2[n], WSS_HW_DETECT, 0, &chip);
+	if (err < 0)
+		goto error;
+
+	err = snd_wss_pcm(chip, 0, NULL);
+	if (err < 0)
+		goto error;
+
+	err = snd_wss_mixer(chip);
+	if (err < 0)
+		goto error;
+
+	err = snd_wss_timer(chip, 0, NULL);
+	if (err < 0)
+		goto error;
+
+	if (mpu_port[n] >= 0) {
+		err = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
+					  mpu_port[n], 0, mpu_irq[n],
+					  IRQF_DISABLED, NULL);
+		if (err < 0)
+			goto error;
+	}
+
+	if (fm_port[n] >= 0) {
+		struct snd_opl3 *opl3;
+
+		err = snd_opl3_create(card, fm_port[n], fm_port[n] + 2,
+				      OPL3_HW_AUTO, 0, &opl3);
+		if (err < 0) {
+			dev_err(dev, "no OPL device at %#lx\n", fm_port[n]);
+			goto error;
+		}
+		err = snd_opl3_timer_new(opl3, 1, 2);
+		if (err < 0)
+			goto error;
+
+		err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
+		if (err < 0)
+			goto error;
+	}
+
+	err = snd_card_register(card);
+	if (err < 0)
+		goto error;
+
+	dev_set_drvdata(dev, card);
+	return 0;
+
+error:
+	snd_card_free(card);
+	return err;
+}
+
+static int __devexit snd_galaxy_remove(struct device *dev, unsigned int n)
+{
+	snd_card_free(dev_get_drvdata(dev));
+	dev_set_drvdata(dev, NULL);
+	return 0;
+}
+
+static struct isa_driver snd_galaxy_driver = {
+	.match		= snd_galaxy_match,
+	.probe		= snd_galaxy_probe,
+	.remove		= __devexit_p(snd_galaxy_remove),
+
+	.driver		= {
+		.name	= DEV_NAME
+	}
+};
+
+static int __init alsa_card_galaxy_init(void)
+{
+	return isa_register_driver(&snd_galaxy_driver, SNDRV_CARDS);
+}
+
+static void __exit alsa_card_galaxy_exit(void)
+{
+	isa_unregister_driver(&snd_galaxy_driver);
+}
+
+module_init(alsa_card_galaxy_init);
+module_exit(alsa_card_galaxy_exit);
diff --git a/sound/isa/sgalaxy.c b/sound/isa/sgalaxy.c
deleted file mode 100644
index 6fe27b9..0000000
--- a/sound/isa/sgalaxy.c
+++ /dev/null
@@ -1,369 +0,0 @@
-/*
- *  Driver for Aztech Sound Galaxy cards
- *  Copyright (c) by Christopher Butler <chrisb@sandy.force9.co.uk.
- *
- *  I don't have documentation for this card, I based this driver on the
- *  driver for OSS/Free included in the kernel source (drivers/sound/sgalaxy.c)
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with this program; if not, write to the Free Software
- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- *
- */
-
-#include <linux/init.h>
-#include <linux/err.h>
-#include <linux/isa.h>
-#include <linux/delay.h>
-#include <linux/time.h>
-#include <linux/interrupt.h>
-#include <linux/moduleparam.h>
-#include <asm/dma.h>
-#include <sound/core.h>
-#include <sound/sb.h>
-#include <sound/wss.h>
-#include <sound/control.h>
-#define SNDRV_LEGACY_FIND_FREE_IRQ
-#define SNDRV_LEGACY_FIND_FREE_DMA
-#include <sound/initval.h>
-
-MODULE_AUTHOR("Christopher Butler <chrisb@sandy.force9.co.uk>");
-MODULE_DESCRIPTION("Aztech Sound Galaxy");
-MODULE_LICENSE("GPL");
-MODULE_SUPPORTED_DEVICE("{{Aztech Systems,Sound Galaxy}}");
-
-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;	/* Enable this card */
-static long sbport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220,0x240 */
-static long wssport[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x530,0xe80,0xf40,0x604 */
-static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 7,9,10,11 */
-static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3 */
-
-module_param_array(index, int, NULL, 0444);
-MODULE_PARM_DESC(index, "Index value for Sound Galaxy soundcard.");
-module_param_array(id, charp, NULL, 0444);
-MODULE_PARM_DESC(id, "ID string for Sound Galaxy soundcard.");
-module_param_array(sbport, long, NULL, 0444);
-MODULE_PARM_DESC(sbport, "Port # for Sound Galaxy SB driver.");
-module_param_array(wssport, long, NULL, 0444);
-MODULE_PARM_DESC(wssport, "Port # for Sound Galaxy WSS driver.");
-module_param_array(irq, int, NULL, 0444);
-MODULE_PARM_DESC(irq, "IRQ # for Sound Galaxy driver.");
-module_param_array(dma1, int, NULL, 0444);
-MODULE_PARM_DESC(dma1, "DMA1 # for Sound Galaxy driver.");
-
-#define SGALAXY_AUXC_LEFT 18
-#define SGALAXY_AUXC_RIGHT 19
-
-#define PFX	"sgalaxy: "
-
-/*
-
- */
-
-#define AD1848P1( port, x ) ( port + c_d_c_AD1848##x )
-
-/* from lowlevel/sb/sb.c - to avoid having to allocate a struct snd_sb for the */
-/* short time we actually need it.. */
-
-static int snd_sgalaxy_sbdsp_reset(unsigned long port)
-{
-	int i;
-
-	outb(1, SBP1(port, RESET));
-	udelay(10);
-	outb(0, SBP1(port, RESET));
-	udelay(30);
-	for (i = 0; i < 1000 && !(inb(SBP1(port, DATA_AVAIL)) & 0x80); i++);
-	if (inb(SBP1(port, READ)) != 0xaa) {
-		snd_printd("sb_reset: failed at 0x%lx!!!\n", port);
-		return -ENODEV;
-	}
-	return 0;
-}
-
-static int __devinit snd_sgalaxy_sbdsp_command(unsigned long port,
-					       unsigned char val)
-{
-	int i;
-       	
-	for (i = 10000; i; i--)
-		if ((inb(SBP1(port, STATUS)) & 0x80) == 0) {
-			outb(val, SBP1(port, COMMAND));
-			return 1;
-		}
-
-	return 0;
-}
-
-static irqreturn_t snd_sgalaxy_dummy_interrupt(int irq, void *dev_id)
-{
-	return IRQ_NONE;
-}
-
-static int __devinit snd_sgalaxy_setup_wss(unsigned long port, int irq, int dma)
-{
-	static int interrupt_bits[] = {-1, -1, -1, -1, -1, -1, -1, 0x08, -1, 
-				       0x10, 0x18, 0x20, -1, -1, -1, -1};
-	static int dma_bits[] = {1, 2, 0, 3};
-	int tmp, tmp1;
-
-	if ((tmp = inb(port + 3)) == 0xff)
-	{
-		snd_printdd("I/O address dead (0x%lx)\n", port);
-		return 0;
-	}
-#if 0
-	snd_printdd("WSS signature = 0x%x\n", tmp);
-#endif
-
-        if ((tmp & 0x3f) != 0x04 &&
-            (tmp & 0x3f) != 0x0f &&
-            (tmp & 0x3f) != 0x00) {
-		snd_printdd("No WSS signature detected on port 0x%lx\n",
-			    port + 3);
-		return 0;
-	}
-
-#if 0
-	snd_printdd(PFX "setting up IRQ/DMA for WSS\n");
-#endif
-
-        /* initialize IRQ for WSS codec */
-        tmp = interrupt_bits[irq % 16];
-        if (tmp < 0)
-                return -EINVAL;
-
-	if (request_irq(irq, snd_sgalaxy_dummy_interrupt, IRQF_DISABLED, "sgalaxy", NULL)) {
-		snd_printk(KERN_ERR "sgalaxy: can't grab irq %d\n", irq);
-		return -EIO;
-	}
-
-        outb(tmp | 0x40, port);
-        tmp1 = dma_bits[dma % 4];
-        outb(tmp | tmp1, port);
-
-	free_irq(irq, NULL);
-
-	return 0;
-}
-
-static int __devinit snd_sgalaxy_detect(int dev, int irq, int dma)
-{
-#if 0
-	snd_printdd(PFX "switching to WSS mode\n");
-#endif
-
-	/* switch to WSS mode */
-	snd_sgalaxy_sbdsp_reset(sbport[dev]);
-
-	snd_sgalaxy_sbdsp_command(sbport[dev], 9);
-	snd_sgalaxy_sbdsp_command(sbport[dev], 0);
-
-	udelay(400);
-	return snd_sgalaxy_setup_wss(wssport[dev], irq, dma);
-}
-
-static struct snd_kcontrol_new snd_sgalaxy_controls[] = {
-WSS_DOUBLE("Aux Playback Switch", 0,
-		SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 7, 7, 1, 1),
-WSS_DOUBLE("Aux Playback Volume", 0,
-		SGALAXY_AUXC_LEFT, SGALAXY_AUXC_RIGHT, 0, 0, 31, 0)
-};
-
-static int __devinit snd_sgalaxy_mixer(struct snd_wss *chip)
-{
-	struct snd_card *card = chip->card;
-	struct snd_ctl_elem_id id1, id2;
-	unsigned int idx;
-	int err;
-
-	memset(&id1, 0, sizeof(id1));
-	memset(&id2, 0, sizeof(id2));
-	id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
-	/* reassign AUX0 to LINE */
-	strcpy(id1.name, "Aux Playback Switch");
-	strcpy(id2.name, "Line Playback Switch");
-	if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
-		return err;
-	strcpy(id1.name, "Aux Playback Volume");
-	strcpy(id2.name, "Line Playback Volume");
-	if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
-		return err;
-	/* reassign AUX1 to FM */
-	strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
-	strcpy(id2.name, "FM Playback Switch");
-	if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
-		return err;
-	strcpy(id1.name, "Aux Playback Volume");
-	strcpy(id2.name, "FM Playback Volume");
-	if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
-		return err;
-	/* build AUX2 input */
-	for (idx = 0; idx < ARRAY_SIZE(snd_sgalaxy_controls); idx++) {
-		err = snd_ctl_add(card,
-				snd_ctl_new1(&snd_sgalaxy_controls[idx], chip));
-		if (err < 0)
-			return err;
-	}
-	return 0;
-}
-
-static int __devinit snd_sgalaxy_match(struct device *devptr, unsigned int dev)
-{
-	if (!enable[dev])
-		return 0;
-	if (sbport[dev] == SNDRV_AUTO_PORT) {
-		snd_printk(KERN_ERR PFX "specify SB port\n");
-		return 0;
-	}
-	if (wssport[dev] == SNDRV_AUTO_PORT) {
-		snd_printk(KERN_ERR PFX "specify WSS port\n");
-		return 0;
-	}
-	return 1;
-}
-
-static int __devinit snd_sgalaxy_probe(struct device *devptr, unsigned int dev)
-{
-	static int possible_irqs[] = {7, 9, 10, 11, -1};
-	static int possible_dmas[] = {1, 3, 0, -1};
-	int err, xirq, xdma1;
-	struct snd_card *card;
-	struct snd_wss *chip;
-
-	err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
-	if (err < 0)
-		return err;
-
-	xirq = irq[dev];
-	if (xirq == SNDRV_AUTO_IRQ) {
-		if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
-			snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
-			err = -EBUSY;
-			goto _err;
-		}
-	}
-	xdma1 = dma1[dev];
-        if (xdma1 == SNDRV_AUTO_DMA) {
-		if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
-			snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
-			err = -EBUSY;
-			goto _err;
-		}
-	}
-
-	if ((err = snd_sgalaxy_detect(dev, xirq, xdma1)) < 0)
-		goto _err;
-
-	err = snd_wss_create(card, wssport[dev] + 4, -1,
-			     xirq, xdma1, -1,
-			     WSS_HW_DETECT, 0, &chip);
-	if (err < 0)
-		goto _err;
-	card->private_data = chip;
-
-	err = snd_wss_pcm(chip, 0, NULL);
-	if (err < 0) {
-		snd_printdd(PFX "error creating new WSS PCM device\n");
-		goto _err;
-	}
-	err = snd_wss_mixer(chip);
-	if (err < 0) {
-		snd_printdd(PFX "error creating new WSS mixer\n");
-		goto _err;
-	}
-	if ((err = snd_sgalaxy_mixer(chip)) < 0) {
-		snd_printdd(PFX "the mixer rewrite failed\n");
-		goto _err;
-	}
-
-	strcpy(card->driver, "Sound Galaxy");
-	strcpy(card->shortname, "Sound Galaxy");
-	sprintf(card->longname, "Sound Galaxy at 0x%lx, irq %d, dma %d",
-		wssport[dev], xirq, xdma1);
-
-	snd_card_set_dev(card, devptr);
-
-	if ((err = snd_card_register(card)) < 0)
-		goto _err;
-
-	dev_set_drvdata(devptr, card);
-	return 0;
-
- _err:
-	snd_card_free(card);
-	return err;
-}
-
-static int __devexit snd_sgalaxy_remove(struct device *devptr, unsigned int dev)
-{
-	snd_card_free(dev_get_drvdata(devptr));
-	dev_set_drvdata(devptr, NULL);
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int snd_sgalaxy_suspend(struct device *pdev, unsigned int n,
-			       pm_message_t state)
-{
-	struct snd_card *card = dev_get_drvdata(pdev);
-	struct snd_wss *chip = card->private_data;
-
-	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	chip->suspend(chip);
-	return 0;
-}
-
-static int snd_sgalaxy_resume(struct device *pdev, unsigned int n)
-{
-	struct snd_card *card = dev_get_drvdata(pdev);
-	struct snd_wss *chip = card->private_data;
-
-	chip->resume(chip);
-	snd_wss_out(chip, SGALAXY_AUXC_LEFT, chip->image[SGALAXY_AUXC_LEFT]);
-	snd_wss_out(chip, SGALAXY_AUXC_RIGHT, chip->image[SGALAXY_AUXC_RIGHT]);
-
-	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
-	return 0;
-}
-#endif
-
-#define DEV_NAME "sgalaxy"
-
-static struct isa_driver snd_sgalaxy_driver = {
-	.match		= snd_sgalaxy_match,
-	.probe		= snd_sgalaxy_probe,
-	.remove		= __devexit_p(snd_sgalaxy_remove),
-#ifdef CONFIG_PM
-	.suspend	= snd_sgalaxy_suspend,
-	.resume		= snd_sgalaxy_resume,
-#endif
-	.driver		= {
-		.name	= DEV_NAME
-	},
-};
-
-static int __init alsa_card_sgalaxy_init(void)
-{
-	return isa_register_driver(&snd_sgalaxy_driver, SNDRV_CARDS);
-}
-
-static void __exit alsa_card_sgalaxy_exit(void)
-{
-	isa_unregister_driver(&snd_sgalaxy_driver);
-}
-
-module_init(alsa_card_sgalaxy_init)
-module_exit(alsa_card_sgalaxy_exit)
diff --git a/sound/pci/ice1712/delta.c b/sound/pci/ice1712/delta.c
index d216362..712c171 100644
--- a/sound/pci/ice1712/delta.c
+++ b/sound/pci/ice1712/delta.c
@@ -563,6 +563,7 @@
 	case ICE1712_SUBDEVICE_DELTA1010E:
 	case ICE1712_SUBDEVICE_DELTA1010LT:
 	case ICE1712_SUBDEVICE_MEDIASTATION:
+	case ICE1712_SUBDEVICE_EDIROLDA2496:
 		ice->num_total_dacs = 8;
 		ice->num_total_adcs = 8;
 		break;
@@ -635,6 +636,7 @@
 		err = snd_ice1712_akm4xxx_init(ak, &akm_delta410, &akm_delta410_priv, ice);
 		break;
 	case ICE1712_SUBDEVICE_DELTA1010LT:
+	case ICE1712_SUBDEVICE_EDIROLDA2496:
 		err = snd_ice1712_akm4xxx_init(ak, &akm_delta1010lt, &akm_delta1010lt_priv, ice);
 		break;
 	case ICE1712_SUBDEVICE_DELTA66:
@@ -734,6 +736,7 @@
 	case ICE1712_SUBDEVICE_DELTA66:
 	case ICE1712_SUBDEVICE_VX442:
 	case ICE1712_SUBDEVICE_DELTA66E:
+	case ICE1712_SUBDEVICE_EDIROLDA2496:
 		err = snd_ice1712_akm4xxx_build_controls(ice);
 		if (err < 0)
 			return err;
@@ -813,5 +816,12 @@
 		.chip_init = snd_ice1712_delta_init,
 		.build_controls = snd_ice1712_delta_add_controls,
 	},
+	{
+		.subvendor = ICE1712_SUBDEVICE_EDIROLDA2496,
+		.name = "Edirol DA2496",
+		.model = "da2496",
+		.chip_init = snd_ice1712_delta_init,
+		.build_controls = snd_ice1712_delta_add_controls,
+	},
 	{ } /* terminator */
 };
diff --git a/sound/pci/ice1712/delta.h b/sound/pci/ice1712/delta.h
index f7f14df..1a0ac6c 100644
--- a/sound/pci/ice1712/delta.h
+++ b/sound/pci/ice1712/delta.h
@@ -34,7 +34,8 @@
 		"{MidiMan M Audio,Delta 410},"\
 		"{MidiMan M Audio,Audiophile 24/96},"\
 		"{Digigram,VX442},"\
-		"{Lionstracs,Mediastation},"
+		"{Lionstracs,Mediastation},"\
+		"{Edirol,DA2496},"
 
 #define ICE1712_SUBDEVICE_DELTA1010	0x121430d6
 #define ICE1712_SUBDEVICE_DELTA1010E	0xff1430d6
@@ -47,6 +48,7 @@
 #define ICE1712_SUBDEVICE_DELTA1010LT	0x12143bd6
 #define ICE1712_SUBDEVICE_VX442		0x12143cd6
 #define ICE1712_SUBDEVICE_MEDIASTATION	0x694c0100
+#define ICE1712_SUBDEVICE_EDIROLDA2496	0xce164010
 
 /* entry point */
 extern struct snd_ice1712_card_info snd_ice1712_delta_cards[];
diff --git a/sound/usb/card.c b/sound/usb/card.c
index 32e4be8..4aa4678 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -300,9 +300,13 @@
 
 	*rchip = NULL;
 
-	if (snd_usb_get_speed(dev) != USB_SPEED_LOW &&
-	    snd_usb_get_speed(dev) != USB_SPEED_FULL &&
-	    snd_usb_get_speed(dev) != USB_SPEED_HIGH) {
+	switch (snd_usb_get_speed(dev)) {
+	case USB_SPEED_LOW:
+	case USB_SPEED_FULL:
+	case USB_SPEED_HIGH:
+	case USB_SPEED_SUPER:
+		break;
+	default:
 		snd_printk(KERN_ERR "unknown device speed %d\n", snd_usb_get_speed(dev));
 		return -ENXIO;
 	}
@@ -378,11 +382,22 @@
 	if (len < sizeof(card->longname))
 		usb_make_path(dev, card->longname + len, sizeof(card->longname) - len);
 
-	strlcat(card->longname,
-		snd_usb_get_speed(dev) == USB_SPEED_LOW ? ", low speed" :
-		snd_usb_get_speed(dev) == USB_SPEED_FULL ? ", full speed" :
-		", high speed",
-		sizeof(card->longname));
+	switch (snd_usb_get_speed(dev)) {
+	case USB_SPEED_LOW:
+		strlcat(card->longname, ", low speed", sizeof(card->longname));
+		break;
+	case USB_SPEED_FULL:
+		strlcat(card->longname, ", full speed", sizeof(card->longname));
+		break;
+	case USB_SPEED_HIGH:
+		strlcat(card->longname, ", high speed", sizeof(card->longname));
+		break;
+	case USB_SPEED_SUPER:
+		strlcat(card->longname, ", super speed", sizeof(card->longname));
+		break;
+	default:
+		break;
+	}
 
 	snd_usb_audio_create_proc(chip);
 
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index ef0a07e..b0ef9f5 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -405,8 +405,6 @@
 			break;
 		case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */
 		case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
-		case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra 8 */
-		case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */
 			/* doesn't set the sample rate attribute, but supports it */
 			fp->attributes |= UAC_EP_CS_ATTR_SAMPLE_RATE;
 			break;
diff --git a/sound/usb/helper.c b/sound/usb/helper.c
index d48d6f8..f280c19 100644
--- a/sound/usb/helper.c
+++ b/sound/usb/helper.c
@@ -103,11 +103,16 @@
 unsigned char snd_usb_parse_datainterval(struct snd_usb_audio *chip,
 					 struct usb_host_interface *alts)
 {
-	if (snd_usb_get_speed(chip->dev) == USB_SPEED_HIGH &&
-	    get_endpoint(alts, 0)->bInterval >= 1 &&
-	    get_endpoint(alts, 0)->bInterval <= 4)
-		return get_endpoint(alts, 0)->bInterval - 1;
-	else
-		return 0;
+	switch (snd_usb_get_speed(chip->dev)) {
+	case USB_SPEED_HIGH:
+	case USB_SPEED_SUPER:
+		if (get_endpoint(alts, 0)->bInterval >= 1 &&
+		    get_endpoint(alts, 0)->bInterval <= 4)
+			return get_endpoint(alts, 0)->bInterval - 1;
+		break;
+	default:
+		break;
+	}
+	return 0;
 }
 
diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index b9c2bc6..156cd07 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -834,7 +834,14 @@
 
 	if (!ep->ports[0].active)
 		return;
-	count = snd_usb_get_speed(ep->umidi->dev) == USB_SPEED_HIGH ? 1 : 2;
+	switch (snd_usb_get_speed(ep->umidi->dev)) {
+	case USB_SPEED_HIGH:
+	case USB_SPEED_SUPER:
+		count = 1;
+		break;
+	default:
+		count = 2;
+	}
 	count = snd_rawmidi_transmit(ep->ports[0].substream,
 				     urb->transfer_buffer,
 				     count);
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 3b5135c..f49756c 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -466,7 +466,7 @@
 		return 0;
 	}
 	/* check whether the period time is >= the data packet interval */
-	if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH) {
+	if (snd_usb_get_speed(subs->dev) != USB_SPEED_FULL) {
 		ptime = 125 * (1 << fp->datainterval);
 		if (ptime > pt->max || (ptime == pt->max && pt->openmax)) {
 			hwc_debug("   > check: ptime %u > max %u\n", ptime, pt->max);
@@ -734,7 +734,7 @@
 	}
 
 	param_period_time_if_needed = SNDRV_PCM_HW_PARAM_PERIOD_TIME;
-	if (snd_usb_get_speed(subs->dev) != USB_SPEED_HIGH)
+	if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL)
 		/* full speed devices have fixed data packet interval */
 		ptmin = 1000;
 	if (ptmin == 1000)
diff --git a/sound/usb/proc.c b/sound/usb/proc.c
index f5e3f35..3c650ab 100644
--- a/sound/usb/proc.c
+++ b/sound/usb/proc.c
@@ -107,7 +107,7 @@
 			}
 			snd_iprintf(buffer, "\n");
 		}
-		if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH)
+		if (snd_usb_get_speed(subs->dev) != USB_SPEED_FULL)
 			snd_iprintf(buffer, "    Data packet interval: %d us\n",
 				    125 * (1 << fp->datainterval));
 		// snd_iprintf(buffer, "    Max Packet Size = %d\n", fp->maxpacksize);
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 2e8003f..c86c613 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -1136,11 +1136,34 @@
 	}
 },
 {
+	/* has ID 0x0066 when not in "Advanced Driver" mode */
+	USB_DEVICE(0x0582, 0x0064),
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+		/* .vendor_name = "EDIROL", */
+		/* .product_name = "PCR-1", */
+		.ifnum = QUIRK_ANY_INTERFACE,
+		.type = QUIRK_COMPOSITE,
+		.data = (const struct snd_usb_audio_quirk[]) {
+			{
+				.ifnum = 1,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 2,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = -1
+			}
+		}
+	}
+},
+{
 	/* has ID 0x0067 when not in "Advanced Driver" mode */
 	USB_DEVICE(0x0582, 0x0065),
 	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
-		.vendor_name = "EDIROL",
-		.product_name = "PCR-1",
+		/* .vendor_name = "EDIROL", */
+		/* .product_name = "PCR-1", */
 		.ifnum = 0,
 		.type = QUIRK_MIDI_FIXED_ENDPOINT,
 		.data = & (const struct snd_usb_midi_endpoint_info) {
@@ -1525,6 +1548,50 @@
 		}
 	}
 },
+{
+	/* has ID 0x0110 when not in Advanced Driver mode */
+	USB_DEVICE_VENDOR_SPEC(0x0582, 0x010f),
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+		/* .vendor_name = "Roland", */
+		/* .product_name = "A-PRO", */
+		.ifnum = 1,
+		.type = QUIRK_MIDI_FIXED_ENDPOINT,
+		.data = & (const struct snd_usb_midi_endpoint_info) {
+			.out_cables = 0x0003,
+			.in_cables  = 0x0007
+		}
+	}
+},
+{
+	USB_DEVICE(0x0582, 0x0113),
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+		/* .vendor_name = "BOSS", */
+		/* .product_name = "ME-25", */
+		.ifnum = QUIRK_ANY_INTERFACE,
+		.type = QUIRK_COMPOSITE,
+		.data = (const struct snd_usb_audio_quirk[]) {
+			{
+				.ifnum = 0,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 1,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 2,
+				.type = QUIRK_MIDI_FIXED_ENDPOINT,
+				.data = & (const struct snd_usb_midi_endpoint_info) {
+					.out_cables = 0x0001,
+					.in_cables  = 0x0001
+				}
+			},
+			{
+				.ifnum = -1
+			}
+		}
+	}
+},
 
 /* Guillemot devices */
 {
@@ -1830,7 +1897,7 @@
 	USB_DEVICE(0x0763, 0x2080),
 	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		/* .vendor_name = "M-Audio", */
-		/* .product_name = "Fast Track Ultra 8", */
+		/* .product_name = "Fast Track Ultra", */
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
 		.data = & (const struct snd_usb_audio_quirk[]) {
@@ -1840,11 +1907,51 @@
 			},
 			{
 				.ifnum = 1,
-				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
+				.data = & (const struct audioformat) {
+					.formats = SNDRV_PCM_FMTBIT_S24_3LE,
+					.channels = 8,
+					.iface = 1,
+					.altsetting = 1,
+					.altset_idx = 1,
+					.attributes = UAC_EP_CS_ATTR_SAMPLE_RATE,
+					.endpoint = 0x01,
+					.ep_attr = 0x09,
+					.rates = SNDRV_PCM_RATE_44100 |
+						 SNDRV_PCM_RATE_48000 |
+						 SNDRV_PCM_RATE_88200 |
+						 SNDRV_PCM_RATE_96000,
+					.rate_min = 44100,
+					.rate_max = 96000,
+					.nr_rates = 4,
+					.rate_table = (unsigned int[]) {
+						44100, 48000, 88200, 96000
+					}
+				}
 			},
 			{
 				.ifnum = 2,
-				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
+				.data = & (const struct audioformat) {
+					.formats = SNDRV_PCM_FMTBIT_S24_3LE,
+					.channels = 8,
+					.iface = 2,
+					.altsetting = 1,
+					.altset_idx = 1,
+					.attributes = UAC_EP_CS_ATTR_SAMPLE_RATE,
+					.endpoint = 0x81,
+					.ep_attr = 0x05,
+					.rates = SNDRV_PCM_RATE_44100 |
+						 SNDRV_PCM_RATE_48000 |
+						 SNDRV_PCM_RATE_88200 |
+						 SNDRV_PCM_RATE_96000,
+					.rate_min = 44100,
+					.rate_max = 96000,
+					.nr_rates = 4,
+					.rate_table = (unsigned int[]) {
+						44100, 48000, 88200, 96000
+					}
+				}
 			},
 			/* interface 3 (MIDI) is standard compliant */
 			{
@@ -1867,11 +1974,51 @@
 			},
 			{
 				.ifnum = 1,
-				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
+				.data = & (const struct audioformat) {
+					.formats = SNDRV_PCM_FMTBIT_S24_3LE,
+					.channels = 8,
+					.iface = 1,
+					.altsetting = 1,
+					.altset_idx = 1,
+					.attributes = UAC_EP_CS_ATTR_SAMPLE_RATE,
+					.endpoint = 0x01,
+					.ep_attr = 0x09,
+					.rates = SNDRV_PCM_RATE_44100 |
+						 SNDRV_PCM_RATE_48000 |
+						 SNDRV_PCM_RATE_88200 |
+						 SNDRV_PCM_RATE_96000,
+					.rate_min = 44100,
+					.rate_max = 96000,
+					.nr_rates = 4,
+					.rate_table = (unsigned int[]) {
+							44100, 48000, 88200, 96000
+					}
+				}
 			},
 			{
 				.ifnum = 2,
-				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
+				.data = & (const struct audioformat) {
+					.formats = SNDRV_PCM_FMTBIT_S24_3LE,
+					.channels = 8,
+					.iface = 2,
+					.altsetting = 1,
+					.altset_idx = 1,
+					.attributes = UAC_EP_CS_ATTR_SAMPLE_RATE,
+					.endpoint = 0x81,
+					.ep_attr = 0x05,
+					.rates = SNDRV_PCM_RATE_44100 |
+						 SNDRV_PCM_RATE_48000 |
+						 SNDRV_PCM_RATE_88200 |
+						 SNDRV_PCM_RATE_96000,
+					.rate_min = 44100,
+					.rate_max = 96000,
+					.nr_rates = 4,
+					.rate_table = (unsigned int[]) {
+						44100, 48000, 88200, 96000
+					}
+				}
 			},
 			/* interface 3 (MIDI) is standard compliant */
 			{
diff --git a/sound/usb/urb.c b/sound/usb/urb.c
index de607d4..8deeaad 100644
--- a/sound/usb/urb.c
+++ b/sound/usb/urb.c
@@ -244,7 +244,7 @@
 	else
 		subs->curpacksize = maxsize;
 
-	if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH)
+	if (snd_usb_get_speed(subs->dev) != USB_SPEED_FULL)
 		packs_per_ms = 8 >> subs->datainterval;
 	else
 		packs_per_ms = 1;