add via modify part source code for wm8880 4.4 kitkat

43 files changed, 8280 insertions, 62 deletions

diff --git a/ANDROID_3.4.5/sound/Makefile b/ANDROID_3.4.5/sound/Makefile
index ce9132b1..987b7d2b 100644
--- a/ANDROID_3.4.5/sound/Makefile
+++ b/ANDROID_3.4.5/sound/Makefile
@@ -5,8 +5,8 @@ obj-$(CONFIG_SOUND) += soundcore.o
 obj-$(CONFIG_SOUND_PRIME) += sound_firmware.o
 obj-$(CONFIG_SOUND_PRIME) += oss/
 obj-$(CONFIG_DMASOUND) += oss/
-obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/ usb/ \
-	firewire/ sparc/ spi/ parisc/ pcmcia/ mips/ soc/ atmel/
+obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/  \
+	firewire/ sparc/ spi/ parisc/ pcmcia/ mips/ soc/ atmel/ usb/
 obj-$(CONFIG_SND_AOA) += aoa/
 
 # This one must be compilable even if sound is configured out
diff --git a/ANDROID_3.4.5/sound/core/Kconfig b/ANDROID_3.4.5/sound/core/Kconfig
index b413ed05..72261551 100644
--- a/ANDROID_3.4.5/sound/core/Kconfig
+++ b/ANDROID_3.4.5/sound/core/Kconfig
@@ -159,6 +159,7 @@ config SND_DYNAMIC_MINORS
 
 config SND_SUPPORT_OLD_API
 	bool "Support old ALSA API"
+	select SND_HWDEP
 	default y
 	help
 	  Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3
diff --git a/ANDROID_3.4.5/sound/core/compress_offload.c b/ANDROID_3.4.5/sound/core/compress_offload.c
index a68aed7f..a58cf359 100644
--- a/ANDROID_3.4.5/sound/core/compress_offload.c
+++ b/ANDROID_3.4.5/sound/core/compress_offload.c
@@ -102,12 +102,15 @@ static int snd_compr_open(struct inode *inode, struct file *f)
 
 	if (dirn != compr->direction) {
 		pr_err("this device doesn't support this direction\n");
+		snd_card_unref(compr->card);
 		return -EINVAL;
 	}
 
 	data = kzalloc(sizeof(*data), GFP_KERNEL);
-	if (!data)
+	if (!data) {
+		snd_card_unref(compr->card);
 		return -ENOMEM;
+	}
 	data->stream.ops = compr->ops;
 	data->stream.direction = dirn;
 	data->stream.private_data = compr->private_data;
@@ -115,6 +118,7 @@ static int snd_compr_open(struct inode *inode, struct file *f)
 	runtime = kzalloc(sizeof(*runtime), GFP_KERNEL);
 	if (!runtime) {
 		kfree(data);
+		snd_card_unref(compr->card);
 		return -ENOMEM;
 	}
 	runtime->state = SNDRV_PCM_STATE_OPEN;
@@ -128,7 +132,8 @@ static int snd_compr_open(struct inode *inode, struct file *f)
 		kfree(runtime);
 		kfree(data);
 	}
-	return ret;
+	snd_card_unref(compr->card);
+	return 0;
 }
 
 static int snd_compr_free(struct inode *inode, struct file *f)
diff --git a/ANDROID_3.4.5/sound/core/control.c b/ANDROID_3.4.5/sound/core/control.c
index 2487a6bb..daa4fc88 100644
--- a/ANDROID_3.4.5/sound/core/control.c
+++ b/ANDROID_3.4.5/sound/core/control.c
@@ -86,6 +86,7 @@ static int snd_ctl_open(struct inode *inode, struct file *file)
 	write_lock_irqsave(&card->ctl_files_rwlock, flags);
 	list_add_tail(&ctl->list, &card->ctl_files);
 	write_unlock_irqrestore(&card->ctl_files_rwlock, flags);
+	snd_card_unref(card);
 	return 0;
 
       __error:
@@ -93,6 +94,8 @@ static int snd_ctl_open(struct inode *inode, struct file *file)
       __error2:
 	snd_card_file_remove(card, file);
       __error1:
+	if (card)
+		snd_card_unref(card);
       	return err;
 }
 
@@ -1433,6 +1436,8 @@ static ssize_t snd_ctl_read(struct file *file, char __user *buffer,
 			spin_unlock_irq(&ctl->read_lock);
 			schedule();
 			remove_wait_queue(&ctl->change_sleep, &wait);
+			if (ctl->card->shutdown)
+				return -ENODEV;
 			if (signal_pending(current))
 				return -ERESTARTSYS;
 			spin_lock_irq(&ctl->read_lock);
diff --git a/ANDROID_3.4.5/sound/core/hwdep.c b/ANDROID_3.4.5/sound/core/hwdep.c
index 75ea16f3..3f7f6628 100644
--- a/ANDROID_3.4.5/sound/core/hwdep.c
+++ b/ANDROID_3.4.5/sound/core/hwdep.c
@@ -100,8 +100,10 @@ static int snd_hwdep_open(struct inode *inode, struct file * file)
 	if (hw == NULL)
 		return -ENODEV;
 
-	if (!try_module_get(hw->card->module))
+	if (!try_module_get(hw->card->module)) {
+		snd_card_unref(hw->card);
 		return -EFAULT;
+	}
 
 	init_waitqueue_entry(&wait, current);
 	add_wait_queue(&hw->open_wait, &wait);
@@ -129,6 +131,10 @@ static int snd_hwdep_open(struct inode *inode, struct file * file)
 		mutex_unlock(&hw->open_mutex);
 		schedule();
 		mutex_lock(&hw->open_mutex);
+		if (hw->card->shutdown) {
+			err = -ENODEV;
+			break;
+		}
 		if (signal_pending(current)) {
 			err = -ERESTARTSYS;
 			break;
@@ -148,6 +154,7 @@ static int snd_hwdep_open(struct inode *inode, struct file * file)
 	mutex_unlock(&hw->open_mutex);
 	if (err < 0)
 		module_put(hw->card->module);
+	snd_card_unref(hw->card);
 	return err;
 }
 
@@ -459,12 +466,15 @@ static int snd_hwdep_dev_disconnect(struct snd_device *device)
 		mutex_unlock(&register_mutex);
 		return -EINVAL;
 	}
+	mutex_lock(&hwdep->open_mutex);
+	wake_up(&hwdep->open_wait);
 #ifdef CONFIG_SND_OSSEMUL
 	if (hwdep->ossreg)
 		snd_unregister_oss_device(hwdep->oss_type, hwdep->card, hwdep->device);
 #endif
 	snd_unregister_device(SNDRV_DEVICE_TYPE_HWDEP, hwdep->card, hwdep->device);
 	list_del_init(&hwdep->list);
+	mutex_unlock(&hwdep->open_mutex);
 	mutex_unlock(&register_mutex);
 	return 0;
 }
diff --git a/ANDROID_3.4.5/sound/core/init.c b/ANDROID_3.4.5/sound/core/init.c
index d8ec849a..7b012d15 100644
--- a/ANDROID_3.4.5/sound/core/init.c
+++ b/ANDROID_3.4.5/sound/core/init.c
@@ -213,6 +213,7 @@ int snd_card_create(int idx, const char *xid,
 	spin_lock_init(&card->files_lock);
 	INIT_LIST_HEAD(&card->files_list);
 	init_waitqueue_head(&card->shutdown_sleep);
+	atomic_set(&card->refcount, 0);
 #ifdef CONFIG_PM
 	mutex_init(&card->power_lock);
 	init_waitqueue_head(&card->power_sleep);
@@ -446,21 +447,36 @@ static int snd_card_do_free(struct snd_card *card)
 	return 0;
 }
 
+/**
+ * snd_card_unref - release the reference counter
+ * @card: the card instance
+ *
+ * Decrements the reference counter.  When it reaches to zero, wake up
+ * the sleeper and call the destructor if needed.
+ */
+void snd_card_unref(struct snd_card *card)
+{
+	if (atomic_dec_and_test(&card->refcount)) {
+		wake_up(&card->shutdown_sleep);
+		if (card->free_on_last_close)
+			snd_card_do_free(card);
+	}
+}
+EXPORT_SYMBOL(snd_card_unref);
+
 int snd_card_free_when_closed(struct snd_card *card)
 {
-	int free_now = 0;
-	int ret = snd_card_disconnect(card);
-	if (ret)
-		return ret;
+	int ret;
 
-	spin_lock(&card->files_lock);
-	if (list_empty(&card->files_list))
-		free_now = 1;
-	else
-		card->free_on_last_close = 1;
-	spin_unlock(&card->files_lock);
+	atomic_inc(&card->refcount);
+	ret = snd_card_disconnect(card);
+	if (ret) {
+		atomic_dec(&card->refcount);
+		return ret;
+	}
 
-	if (free_now)
+	card->free_on_last_close = 1;
+	if (atomic_dec_and_test(&card->refcount))
 		snd_card_do_free(card);
 	return 0;
 }
@@ -474,7 +490,7 @@ int snd_card_free(struct snd_card *card)
 		return ret;
 
 	/* wait, until all devices are ready for the free operation */
-	wait_event(card->shutdown_sleep, list_empty(&card->files_list));
+	wait_event(card->shutdown_sleep, !atomic_read(&card->refcount));
 	snd_card_do_free(card);
 	return 0;
 }
@@ -886,6 +902,7 @@ int snd_card_file_add(struct snd_card *card, struct file *file)
 		return -ENODEV;
 	}
 	list_add(&mfile->list, &card->files_list);
+	atomic_inc(&card->refcount);
 	spin_unlock(&card->files_lock);
 	return 0;
 }
@@ -908,7 +925,6 @@ EXPORT_SYMBOL(snd_card_file_add);
 int snd_card_file_remove(struct snd_card *card, struct file *file)
 {
 	struct snd_monitor_file *mfile, *found = NULL;
-	int last_close = 0;
 
 	spin_lock(&card->files_lock);
 	list_for_each_entry(mfile, &card->files_list, list) {
@@ -923,19 +939,13 @@ int snd_card_file_remove(struct snd_card *card, struct file *file)
 			break;
 		}
 	}
-	if (list_empty(&card->files_list))
-		last_close = 1;
 	spin_unlock(&card->files_lock);
-	if (last_close) {
-		wake_up(&card->shutdown_sleep);
-		if (card->free_on_last_close)
-			snd_card_do_free(card);
-	}
 	if (!found) {
 		snd_printk(KERN_ERR "ALSA card file remove problem (%p)\n", file);
 		return -ENOENT;
 	}
 	kfree(found);
+	snd_card_unref(card);
 	return 0;
 }
 
diff --git a/ANDROID_3.4.5/sound/core/oss/mixer_oss.c b/ANDROID_3.4.5/sound/core/oss/mixer_oss.c
index 18297f7f..c3537688 100644
--- a/ANDROID_3.4.5/sound/core/oss/mixer_oss.c
+++ b/ANDROID_3.4.5/sound/core/oss/mixer_oss.c
@@ -52,14 +52,19 @@ static int snd_mixer_oss_open(struct inode *inode, struct file *file)
 					 SNDRV_OSS_DEVICE_TYPE_MIXER);
 	if (card == NULL)
 		return -ENODEV;
-	if (card->mixer_oss == NULL)
+	if (card->mixer_oss == NULL) {
+		snd_card_unref(card);
 		return -ENODEV;
+	}
 	err = snd_card_file_add(card, file);
-	if (err < 0)
+	if (err < 0) {
+		snd_card_unref(card);
 		return err;
+	}
 	fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL);
 	if (fmixer == NULL) {
 		snd_card_file_remove(card, file);
+		snd_card_unref(card);
 		return -ENOMEM;
 	}
 	fmixer->card = card;
@@ -68,8 +73,10 @@ static int snd_mixer_oss_open(struct inode *inode, struct file *file)
 	if (!try_module_get(card->module)) {
 		kfree(fmixer);
 		snd_card_file_remove(card, file);
+		snd_card_unref(card);
 		return -EFAULT;
 	}
+	snd_card_unref(card);
 	return 0;
 }
 
diff --git a/ANDROID_3.4.5/sound/core/oss/pcm_oss.c b/ANDROID_3.4.5/sound/core/oss/pcm_oss.c
index 08fde006..4c1cc517 100644
--- a/ANDROID_3.4.5/sound/core/oss/pcm_oss.c
+++ b/ANDROID_3.4.5/sound/core/oss/pcm_oss.c
@@ -2441,6 +2441,10 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file)
 		mutex_unlock(&pcm->open_mutex);
 		schedule();
 		mutex_lock(&pcm->open_mutex);
+		if (pcm->card->shutdown) {
+			err = -ENODEV;
+			break;
+		}
 		if (signal_pending(current)) {
 			err = -ERESTARTSYS;
 			break;
@@ -2450,6 +2454,7 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file)
 	mutex_unlock(&pcm->open_mutex);
 	if (err < 0)
 		goto __error;
+	snd_card_unref(pcm->card);
 	return err;
 
       __error:
@@ -2457,6 +2462,8 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file)
       __error2:
       	snd_card_file_remove(pcm->card, file);
       __error1:
+	if (pcm)
+		snd_card_unref(pcm->card);
 	return err;
 }
 
diff --git a/ANDROID_3.4.5/sound/core/pcm.c b/ANDROID_3.4.5/sound/core/pcm.c
index 1a3070b4..e30e1be3 100644
--- a/ANDROID_3.4.5/sound/core/pcm.c
+++ b/ANDROID_3.4.5/sound/core/pcm.c
@@ -1086,11 +1086,19 @@ static int snd_pcm_dev_disconnect(struct snd_device *device)
 	if (list_empty(&pcm->list))
 		goto unlock;
 
+	mutex_lock(&pcm->open_mutex);
+	wake_up(&pcm->open_wait);
 	list_del_init(&pcm->list);
 	for (cidx = 0; cidx < 2; cidx++)
-		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
-			if (substream->runtime)
+		for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) {
+			snd_pcm_stream_lock_irq(substream);
+			if (substream->runtime) {
 				substream->runtime->status->state = SNDRV_PCM_STATE_DISCONNECTED;
+				wake_up(&substream->runtime->sleep);
+				wake_up(&substream->runtime->tsleep);
+			}
+			snd_pcm_stream_unlock_irq(substream);
+		}
 	list_for_each_entry(notify, &snd_pcm_notify_list, list) {
 		notify->n_disconnect(pcm);
 	}
@@ -1106,6 +1114,7 @@ static int snd_pcm_dev_disconnect(struct snd_device *device)
 		}
 		snd_unregister_device(devtype, pcm->card, pcm->device);
 	}
+	mutex_unlock(&pcm->open_mutex);
  unlock:
 	mutex_unlock(&register_mutex);
 	return 0;
diff --git a/ANDROID_3.4.5/sound/core/pcm_native.c b/ANDROID_3.4.5/sound/core/pcm_native.c
index 3fe99e64..d535b341 100644
--- a/ANDROID_3.4.5/sound/core/pcm_native.c
+++ b/ANDROID_3.4.5/sound/core/pcm_native.c
@@ -369,6 +369,14 @@ static int period_to_usecs(struct snd_pcm_runtime *runtime)
 	return usecs;
 }
 
+static void snd_pcm_set_state(struct snd_pcm_substream *substream, int state)
+{
+	snd_pcm_stream_lock_irq(substream);
+	if (substream->runtime->status->state != SNDRV_PCM_STATE_DISCONNECTED)
+		substream->runtime->status->state = state;
+	snd_pcm_stream_unlock_irq(substream);
+}
+
 static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
 			     struct snd_pcm_hw_params *params)
 {
@@ -452,7 +460,7 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
 		runtime->boundary *= 2;
 
 	snd_pcm_timer_resolution_change(substream);
-	runtime->status->state = SNDRV_PCM_STATE_SETUP;
+	snd_pcm_set_state(substream, SNDRV_PCM_STATE_SETUP);
 
 	if (pm_qos_request_active(&substream->latency_pm_qos_req))
 		pm_qos_remove_request(&substream->latency_pm_qos_req);
@@ -464,7 +472,7 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
 	/* hardware might be unusable from this time,
 	   so we force application to retry to set
 	   the correct hardware parameter settings */
-	runtime->status->state = SNDRV_PCM_STATE_OPEN;
+	snd_pcm_set_state(substream, SNDRV_PCM_STATE_OPEN);
 	if (substream->ops->hw_free != NULL)
 		substream->ops->hw_free(substream);
 	return err;
@@ -512,7 +520,7 @@ static int snd_pcm_hw_free(struct snd_pcm_substream *substream)
 		return -EBADFD;
 	if (substream->ops->hw_free)
 		result = substream->ops->hw_free(substream);
-	runtime->status->state = SNDRV_PCM_STATE_OPEN;
+	snd_pcm_set_state(substream, SNDRV_PCM_STATE_OPEN);
 	pm_qos_remove_request(&substream->latency_pm_qos_req);
 	return result;
 }
@@ -1320,7 +1328,7 @@ static void snd_pcm_post_prepare(struct snd_pcm_substream *substream, int state)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	runtime->control->appl_ptr = runtime->status->hw_ptr;
-	runtime->status->state = SNDRV_PCM_STATE_PREPARED;
+	snd_pcm_set_state(substream, SNDRV_PCM_STATE_PREPARED);
 }
 
 static struct action_ops snd_pcm_action_prepare = {
@@ -1500,6 +1508,10 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream,
 		down_read(&snd_pcm_link_rwsem);
 		snd_pcm_stream_lock_irq(substream);
 		remove_wait_queue(&to_check->sleep, &wait);
+		if (card->shutdown) {
+			result = -ENODEV;
+			break;
+		}
 		if (tout == 0) {
 			if (substream->runtime->status->state == SNDRV_PCM_STATE_SUSPENDED)
 				result = -ESTRPIPE;
@@ -1623,6 +1635,7 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
 	write_unlock_irq(&snd_pcm_link_rwlock);
 	up_write(&snd_pcm_link_rwsem);
  _nolock:
+	snd_card_unref(substream1->pcm->card);
 	fput(file);
 	if (res < 0)
 		kfree(group);
@@ -2097,7 +2110,10 @@ static int snd_pcm_playback_open(struct inode *inode, struct file *file)
 		return err;
 	pcm = snd_lookup_minor_data(iminor(inode),
 				    SNDRV_DEVICE_TYPE_PCM_PLAYBACK);
-	return snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_PLAYBACK);
+	err = snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_PLAYBACK);
+	if (pcm)
+		snd_card_unref(pcm->card);
+	return err;
 }
 
 static int snd_pcm_capture_open(struct inode *inode, struct file *file)
@@ -2108,7 +2124,10 @@ static int snd_pcm_capture_open(struct inode *inode, struct file *file)
 		return err;
 	pcm = snd_lookup_minor_data(iminor(inode),
 				    SNDRV_DEVICE_TYPE_PCM_CAPTURE);
-	return snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_CAPTURE);
+	err = snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_CAPTURE);
+	if (pcm)
+		snd_card_unref(pcm->card);
+	return err;
 }
 
 static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream)
@@ -2145,6 +2164,10 @@ static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream)
 		mutex_unlock(&pcm->open_mutex);
 		schedule();
 		mutex_lock(&pcm->open_mutex);
+		if (pcm->card->shutdown) {
+			err = -ENODEV;
+			break;
+		}
 		if (signal_pending(current)) {
 			err = -ERESTARTSYS;
 			break;
diff --git a/ANDROID_3.4.5/sound/core/rawmidi.c b/ANDROID_3.4.5/sound/core/rawmidi.c
index ebf6e49a..1bb95aee 100644
--- a/ANDROID_3.4.5/sound/core/rawmidi.c
+++ b/ANDROID_3.4.5/sound/core/rawmidi.c
@@ -379,8 +379,10 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
 	if (rmidi == NULL)
 		return -ENODEV;
 
-	if (!try_module_get(rmidi->card->module))
+	if (!try_module_get(rmidi->card->module)) {
+		snd_card_unref(rmidi->card);
 		return -ENXIO;
+	}
 
 	mutex_lock(&rmidi->open_mutex);
 	card = rmidi->card;
@@ -422,6 +424,10 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
 		mutex_unlock(&rmidi->open_mutex);
 		schedule();
 		mutex_lock(&rmidi->open_mutex);
+		if (rmidi->card->shutdown) {
+			err = -ENODEV;
+			break;
+		}
 		if (signal_pending(current)) {
 			err = -ERESTARTSYS;
 			break;
@@ -440,6 +446,7 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
 #endif
 	file->private_data = rawmidi_file;
 	mutex_unlock(&rmidi->open_mutex);
+	snd_card_unref(rmidi->card);
 	return 0;
 
  __error:
@@ -447,6 +454,7 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
  __error_card:
 	mutex_unlock(&rmidi->open_mutex);
 	module_put(rmidi->card->module);
+	snd_card_unref(rmidi->card);
 	return err;
 }
 
@@ -991,6 +999,8 @@ static ssize_t snd_rawmidi_read(struct file *file, char __user *buf, size_t coun
 			spin_unlock_irq(&runtime->lock);
 			schedule();
 			remove_wait_queue(&runtime->sleep, &wait);
+			if (rfile->rmidi->card->shutdown)
+				return -ENODEV;
 			if (signal_pending(current))
 				return result > 0 ? result : -ERESTARTSYS;
 			if (!runtime->avail)
@@ -1234,6 +1244,8 @@ static ssize_t snd_rawmidi_write(struct file *file, const char __user *buf,
 			spin_unlock_irq(&runtime->lock);
 			timeout = schedule_timeout(30 * HZ);
 			remove_wait_queue(&runtime->sleep, &wait);
+			if (rfile->rmidi->card->shutdown)
+				return -ENODEV;
 			if (signal_pending(current))
 				return result > 0 ? result : -ERESTARTSYS;
 			if (!runtime->avail && !timeout)
@@ -1609,9 +1621,20 @@ static int snd_rawmidi_dev_register(struct snd_device *device)
 static int snd_rawmidi_dev_disconnect(struct snd_device *device)
 {
 	struct snd_rawmidi *rmidi = device->device_data;
+	int dir;
 
 	mutex_lock(&register_mutex);
+	mutex_lock(&rmidi->open_mutex);
+	wake_up(&rmidi->open_wait);
 	list_del_init(&rmidi->list);
+	for (dir = 0; dir < 2; dir++) {
+		struct snd_rawmidi_substream *s;
+		list_for_each_entry(s, &rmidi->streams[dir].substreams, list) {
+			if (s->runtime)
+				wake_up(&s->runtime->sleep);
+		}
+	}
+
 #ifdef CONFIG_SND_OSSEMUL
 	if (rmidi->ossreg) {
 		if ((int)rmidi->device == midi_map[rmidi->card->number]) {
@@ -1626,6 +1649,7 @@ static int snd_rawmidi_dev_disconnect(struct snd_device *device)
 	}
 #endif /* CONFIG_SND_OSSEMUL */
 	snd_unregister_device(SNDRV_DEVICE_TYPE_RAWMIDI, rmidi->card, rmidi->device);
+	mutex_unlock(&rmidi->open_mutex);
 	mutex_unlock(&register_mutex);
 	return 0;
 }
diff --git a/ANDROID_3.4.5/sound/core/sound.c b/ANDROID_3.4.5/sound/core/sound.c
index 28f35593..3700d96f 100644
--- a/ANDROID_3.4.5/sound/core/sound.c
+++ b/ANDROID_3.4.5/sound/core/sound.c
@@ -99,6 +99,10 @@ static void snd_request_other(int minor)
  *
  * Checks that a minor device with the specified type is registered, and returns
  * its user data pointer.
+ *
+ * This function increments the reference counter of the card instance
+ * if an associated instance with the given minor number and type is found.
+ * The caller must call snd_card_unref() appropriately later.
  */
 void *snd_lookup_minor_data(unsigned int minor, int type)
 {
@@ -109,9 +113,11 @@ void *snd_lookup_minor_data(unsigned int minor, int type)
 		return NULL;
 	mutex_lock(&sound_mutex);
 	mreg = snd_minors[minor];
-	if (mreg && mreg->type == type)
+	if (mreg && mreg->type == type) {
 		private_data = mreg->private_data;
-	else
+		if (private_data && mreg->card_ptr)
+			atomic_inc(&mreg->card_ptr->refcount);
+	} else
 		private_data = NULL;
 	mutex_unlock(&sound_mutex);
 	return private_data;
@@ -276,6 +282,7 @@ int snd_register_device_for_dev(int type, struct snd_card *card, int dev,
 	preg->device = dev;
 	preg->f_ops = f_ops;
 	preg->private_data = private_data;
+	preg->card_ptr = card;
 	mutex_lock(&sound_mutex);
 #ifdef CONFIG_SND_DYNAMIC_MINORS
 	minor = snd_find_free_minor(type);
diff --git a/ANDROID_3.4.5/sound/core/sound_oss.c b/ANDROID_3.4.5/sound/core/sound_oss.c
index c7009204..ec860091 100644
--- a/ANDROID_3.4.5/sound/core/sound_oss.c
+++ b/ANDROID_3.4.5/sound/core/sound_oss.c
@@ -40,6 +40,9 @@
 static struct snd_minor *snd_oss_minors[SNDRV_OSS_MINORS];
 static DEFINE_MUTEX(sound_oss_mutex);
 
+/* NOTE: This function increments the refcount of the associated card like
+ * snd_lookup_minor_data(); the caller must call snd_card_unref() appropriately
+ */
 void *snd_lookup_oss_minor_data(unsigned int minor, int type)
 {
 	struct snd_minor *mreg;
@@ -49,9 +52,11 @@ void *snd_lookup_oss_minor_data(unsigned int minor, int type)
 		return NULL;
 	mutex_lock(&sound_oss_mutex);
 	mreg = snd_oss_minors[minor];
-	if (mreg && mreg->type == type)
+	if (mreg && mreg->type == type) {
 		private_data = mreg->private_data;
-	else
+		if (private_data && mreg->card_ptr)
+			atomic_inc(&mreg->card_ptr->refcount);
+	} else
 		private_data = NULL;
 	mutex_unlock(&sound_oss_mutex);
 	return private_data;
@@ -123,6 +128,7 @@ int snd_register_oss_device(int type, struct snd_card *card, int dev,
 	preg->device = dev;
 	preg->f_ops = f_ops;
 	preg->private_data = private_data;
+	preg->card_ptr = card;
 	mutex_lock(&sound_oss_mutex);
 	snd_oss_minors[minor] = preg;
 	minor_unit = SNDRV_MINOR_OSS_DEVICE(minor);
diff --git a/ANDROID_3.4.5/sound/soc/Kconfig b/ANDROID_3.4.5/sound/soc/Kconfig
index 91c98559..5727227d 100644
--- a/ANDROID_3.4.5/sound/soc/Kconfig
+++ b/ANDROID_3.4.5/sound/soc/Kconfig
@@ -48,6 +48,7 @@ source "sound/soc/s6000/Kconfig"
 source "sound/soc/sh/Kconfig"
 source "sound/soc/tegra/Kconfig"
 source "sound/soc/txx9/Kconfig"
+source "sound/soc/wmt/Kconfig"
 
 # Supported codecs
 source "sound/soc/codecs/Kconfig"
diff --git a/ANDROID_3.4.5/sound/soc/Makefile b/ANDROID_3.4.5/sound/soc/Makefile
index 2feaf376..4dca9714 100644
--- a/ANDROID_3.4.5/sound/soc/Makefile
+++ b/ANDROID_3.4.5/sound/soc/Makefile
@@ -5,6 +5,7 @@ snd-soc-dmaengine-pcm-objs := soc-dmaengine-pcm.o
 obj-$(CONFIG_SND_SOC_DMAENGINE_PCM) += snd-soc-dmaengine-pcm.o
 
 obj-$(CONFIG_SND_SOC)	+= snd-soc-core.o
+obj-$(CONFIG_SND_SOC)	+= wmt/
 obj-$(CONFIG_SND_SOC)	+= codecs/
 obj-$(CONFIG_SND_SOC)	+= atmel/
 obj-$(CONFIG_SND_SOC)	+= au1x/
diff --git a/ANDROID_3.4.5/sound/soc/codecs/Kconfig b/ANDROID_3.4.5/sound/soc/codecs/Kconfig
index 59d8efaa..7077ac69 100644
--- a/ANDROID_3.4.5/sound/soc/codecs/Kconfig
+++ b/ANDROID_3.4.5/sound/soc/codecs/Kconfig
@@ -335,6 +335,18 @@ config SND_SOC_WM8741
 config SND_SOC_WM8750
 	tristate
 
+config SND_SOC_VT1602
+	tristate
+	depends on SND_SOC
+	
+config SND_SOC_VT1603
+	tristate
+	depends on SND_SOC
+
+config SND_SOC_HWDAC
+	tristate
+	depends on SND_SOC
+
 config SND_SOC_WM8753
 	tristate
 
@@ -437,3 +449,7 @@ config SND_SOC_MAX9877
 
 config SND_SOC_TPA6130A2
 	tristate
+
+# echo cancellation
+config SND_SOC_WMT_FM34
+	tristate
diff --git a/ANDROID_3.4.5/sound/soc/codecs/Makefile b/ANDROID_3.4.5/sound/soc/codecs/Makefile
index 6662eb0c..83175a64 100644
--- a/ANDROID_3.4.5/sound/soc/codecs/Makefile
+++ b/ANDROID_3.4.5/sound/soc/codecs/Makefile
@@ -66,6 +66,9 @@ snd-soc-wm8731-objs := wm8731.o
 snd-soc-wm8737-objs := wm8737.o
 snd-soc-wm8741-objs := wm8741.o
 snd-soc-wm8750-objs := wm8750.o
+snd-soc-vt1602-objs := wmt_vt1602.o
+snd-soc-vt1603-objs := vt1603.o
+snd-soc-hwdac-objs := wmt_hwdac.o
 snd-soc-wm8753-objs := wm8753.o
 snd-soc-wm8770-objs := wm8770.o
 snd-soc-wm8776-objs := wm8776.o
@@ -102,6 +105,9 @@ snd-soc-wm-hubs-objs := wm_hubs.o
 snd-soc-max9877-objs := max9877.o
 snd-soc-tpa6130a2-objs := tpa6130a2.o
 
+# echo cancellation
+snd-soc-wmt-fm34-objs := wmt_fm34.o
+
 obj-$(CONFIG_SND_SOC_88PM860X)	+= snd-soc-88pm860x.o
 obj-$(CONFIG_SND_SOC_AC97_CODEC)	+= snd-soc-ac97.o
 obj-$(CONFIG_SND_SOC_AD1836)	+= snd-soc-ad1836.o
@@ -170,6 +176,9 @@ obj-$(CONFIG_SND_SOC_WM8731)	+= snd-soc-wm8731.o
 obj-$(CONFIG_SND_SOC_WM8737)	+= snd-soc-wm8737.o
 obj-$(CONFIG_SND_SOC_WM8741)	+= snd-soc-wm8741.o
 obj-$(CONFIG_SND_SOC_WM8750)	+= snd-soc-wm8750.o
+obj-$(CONFIG_SND_SOC_VT1602)	+= snd-soc-vt1602.o
+obj-$(CONFIG_SND_SOC_VT1603)	+= snd-soc-vt1603.o
+obj-$(CONFIG_SND_SOC_HWDAC)		+= snd-soc-hwdac.o
 obj-$(CONFIG_SND_SOC_WM8753)	+= snd-soc-wm8753.o
 obj-$(CONFIG_SND_SOC_WM8770)	+= snd-soc-wm8770.o
 obj-$(CONFIG_SND_SOC_WM8776)	+= snd-soc-wm8776.o
@@ -205,3 +214,6 @@ obj-$(CONFIG_SND_SOC_WM_HUBS)	+= snd-soc-wm-hubs.o
 # Amp
 obj-$(CONFIG_SND_SOC_MAX9877)	+= snd-soc-max9877.o
 obj-$(CONFIG_SND_SOC_TPA6130A2)	+= snd-soc-tpa6130a2.o
+
+# echo cancellation
+obj-$(CONFIG_SND_SOC_WMT_FM34)	+= snd-soc-wmt-fm34.o
diff --git a/ANDROID_3.4.5/sound/soc/codecs/vt1603.c b/ANDROID_3.4.5/sound/soc/codecs/vt1603.c
new file mode 100755
index 00000000..eaa3d28e
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/codecs/vt1603.c
@@ -0,0 +1,1249 @@
+/*++ 
+ * linux/sound/soc/codecs/vt1603.c
+ * WonderMedia audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/version.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+#include <linux/interrupt.h>
+#include <asm/irq.h>
+#include <linux/workqueue.h>
+#include <linux/switch.h>
+#include <linux/slab.h>
+#include <linux/proc_fs.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+
+#include "vt1603.h"
+#include <linux/mfd/vt1603/core.h>
+
+#define VT1603_TIMER_INTERVAL 100 // ms
+
+static struct snd_soc_codec *gvt1603_codec = NULL; //
+
+struct vt1603_priv {
+	unsigned int sysclk;
+	struct switch_dev hp_switch; // state of headphone insert or not
+	struct work_struct work;
+	struct snd_soc_codec *codec;
+	struct timer_list timer; // timer for detecting headphone
+	struct proc_dir_entry *proc;
+	struct notifier_block reboot_notifier;
+};
+
+struct vt1603_boardinfo {
+	int hp_level; // 0: headset level low; 1: high
+	int ignore_hp_event;
+	int rec_src;  // 0: AMIC-IN; 1: DMIC-IN 
+	
+	int hpd_rm; //add 2013-11-26
+	int hp_debounce; //add 2014-1-14
+	int timer_del; //2014-1-20 tvbox
+	
+	int out_on; //2014-4-29 av out on for tvbox noisy. hw not good!
+};
+static struct vt1603_boardinfo vt1603_boardinfo;
+
+extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen);
+
+static const u16 vt1603_regs[] = {
+	0x0020, 0x00D7, 0x00D7, 0x0004,  /* 0-3 */
+	0x0000, 0x0040, 0x0000, 0x00c0,  /* 4-7 */
+	0x00c0, 0x0010, 0x0001, 0x0041,  /* 8-11 */
+	0x0000, 0x0000, 0x000b, 0x0093,  /* 12-15 */
+	0x0004, 0x0016, 0x0026, 0x0060,  /* 16-19 */
+	0x001a, 0x0000, 0x0002, 0x0000,  /* 20-23 */
+	0x0000, 0x000a, 0x0000, 0x0010,  /* 24-27 */
+	0x0000, 0x00e2, 0x0000, 0x0000,  /* 28-31 */
+	0x0000, 0x0000, 0x0000, 0x0000,  /* 32-35 */
+	0x0000, 0x000c, 0x0054, 0x0000,  /* 36-39 */
+	0x0001, 0x000c, 0x000c, 0x000c,  /* 40-43 */
+	0x000c, 0x000c, 0x00c0, 0x00d5,  /* 44-47 */
+	0x00c5, 0x0012, 0x0085, 0x002b,  /* 48-51 */
+	0x00cd, 0x00cd, 0x008e, 0x008d,  /* 52-55 */
+	0x00e0, 0x00a6, 0x00a5, 0x0050,  /* 56-59 */
+	0x00e9, 0x00cf, 0x0040, 0x0000,  /* 60-63 */
+	0x0000, 0x0008, 0x0004, 0x0000,  /* 64-67 */
+	0x0040, 0x0000, 0x0040, 0x0000,  /* 68-71 */
+	0x0000, 0x0000, 0x0000, 0x0000,  /* 72-75 */
+	0x0000, 0x0000, 0x0000, 0x0000,  /* 76-79 */
+	0x0000, 0x0000, 0x0000, 0x0000,  /* 80-83 */
+	0x0000, 0x0000, 0x0000, 0x0000,  /* 84-87 */
+	0x0000, 0x0000, 0x0000, 0x0000,  /* 88-91 */
+	0x0000, 0x0000, 0x0000, 0x0000,  /* 92-95 */
+	0x00c4, 0x0079, 0x000c, 0x0024,  /* 96-99 */
+	0x0016, 0x0016, 0x0060, 0x0002,  /* 100-103 */
+	0x005b, 0x0003, 0x0039, 0x0039,  /* 104-107 */
+	0x00fe, 0x0012, 0x0034, 0x0000,  /* 108-111 */
+	0x0004, 0x00f0, 0x0000, 0x0000,  /* 112-115 */
+	0x0000, 0x0000, 0x0003, 0x0000,  /* 116-119 */
+	0x0000, 0x0000, 0x0000, 0x0000,  /* 120-123 */
+	0x00f2, 0x0020, 0x0023, 0x006e,  /* 124-127 */
+	0x0019, 0x0040, 0x0000, 0x0004,  /* 128-131 */
+	0x000a, 0x0075, 0x0035, 0x00b0,  /* 132-135 */
+	0x0040, 0x0000, 0x0000, 0x0000,  /* 136-139 */
+	0x0088, 0x0013, 0x000c, 0x0003,  /* 140-143 */
+	0x0000, 0x0000, 0x0008, 0x0000,  /* 144-147 */
+	0x0003, 0x0020, 0x0030, 0x0018,  /* 148-151 */
+	0x001b,
+};
+
+/*----------------------------------------------------------------------*/
+
+
+/*---------------------Control Interface Functions----------------------*/
+
+static int vt1603_write(struct snd_soc_codec *codec, 
+		unsigned int reg, unsigned int value)
+{
+	int ret = vt1603_reg_write(codec->control_data, reg, value);
+	if (ret == 0)
+		((u16 *)codec->reg_cache)[reg] = value;
+	return ret;
+}
+
+static unsigned int vt1603_read(struct snd_soc_codec *codec, 
+		unsigned int reg)
+{
+	return ((u16 *)codec->reg_cache)[reg];
+}
+
+static int vt1603_hw_write(struct snd_soc_codec *codec, 
+		unsigned int reg, unsigned int value)
+{
+	return vt1603_reg_write(codec->control_data, reg, value);
+}
+
+static unsigned int vt1603_hw_read(struct snd_soc_codec *codec, 
+		unsigned int reg)
+{
+	u8 val;
+	int ret = vt1603_reg_read(codec->control_data, reg, &val);
+	if (ret == 0)
+		return val;
+	else
+		return ((u16 *)codec->reg_cache)[reg];
+}
+
+/*----------------------------------------------------------------------*/
+
+
+/*----------------------IRQ handle Functions----------------------------*/
+
+static void vt1603_set_switch_state(struct snd_soc_codec *codec)
+{
+	/* Just report hp state, don't switch hw device, app will handle it. */
+	
+	struct vt1603_priv *vt1603 = snd_soc_codec_get_drvdata(codec);
+	unsigned int val = vt1603_hw_read(codec, VT1603_R21);
+	
+	if (vt1603_boardinfo.hp_level) {
+		if (val & BIT1) {
+			val &= ~BIT1;
+			snd_soc_write(codec, VT1603_R21, val);
+			if (!vt1603_boardinfo.ignore_hp_event)
+				switch_set_state(&vt1603->hp_switch, 0);
+			pr_info("<<<vt1603: hp out!\n");	
+		} 
+		else {
+			val |= BIT1;
+			snd_soc_write(codec, VT1603_R21, val);
+			if (!vt1603_boardinfo.ignore_hp_event)
+				switch_set_state(&vt1603->hp_switch, 1);
+			pr_info("<<<vt1603: hp in!\n");
+		}
+	} 
+	else {
+		if (val & BIT1) {
+			val &= ~BIT1;
+			snd_soc_write(codec, VT1603_R21, val);
+			if (!vt1603_boardinfo.ignore_hp_event)
+				switch_set_state(&vt1603->hp_switch, 1);
+			pr_info("<<<vt1603: hp in!\n");
+		}
+		else {
+			val |= BIT1;
+			snd_soc_write(codec, VT1603_R21, val);
+			if (!vt1603_boardinfo.ignore_hp_event)
+				switch_set_state(&vt1603->hp_switch, 0);
+			pr_info("<<<vt1603: hp out!\n");	
+		}
+	}
+}
+
+static void vt1603_codec_irq_handle(struct work_struct *work)
+{
+	struct vt1603_priv *priv = container_of(work, struct vt1603_priv, work);
+	struct snd_soc_codec *codec = priv->codec;
+	unsigned int val;
+	static unsigned int count = 0;
+	int hp_state = 0; //switch_get_state(&priv->hp_switch);
+	if (!vt1603_boardinfo.hpd_rm)
+		hp_state = switch_get_state(&priv->hp_switch);
+		
+	unsigned int debounce = (hp_state == 0) ? 3 : 1; // sw-debounce for headset plugin
+	
+	if (vt1603_boardinfo.hp_debounce > 0)
+		debounce = (hp_state == 0) ? vt1603_boardinfo.hp_debounce : 1;
+	
+	
+		
+	val = vt1603_hw_read(codec, VT1603_R51);
+	if (val & BIT1) {
+		val = vt1603_hw_read(codec, VT1603_R1b);
+		val |= BIT1;
+		snd_soc_write(codec, VT1603_R1b, val);
+		val &= ~BIT1;
+		snd_soc_write(codec, VT1603_R1b, val);
+		count++; 
+	}
+	else {
+		count = 0;
+	}
+	
+	if (count == debounce) {
+		pr_info("vt1603: hpdetect\n");
+		vt1603_set_switch_state(codec);
+		// clear headphone irq mask
+		val = vt1603_hw_read(codec,VT1603_R1b);
+		val |= BIT1;
+		snd_soc_write(codec, VT1603_R1b, val);
+		val &= ~BIT1;
+		snd_soc_write(codec, VT1603_R1b, val);
+		count = 0;
+	}
+
+	val = vt1603_hw_read(codec, VT1603_R52);
+	if (val & BIT4) {
+		pr_info("vt1603: left cld oc\n");
+		val = vt1603_hw_read(codec,VT1603_R1c);
+		val |= BIT4;
+		snd_soc_write(codec, VT1603_R1c, val);
+		val &= ~BIT4;
+		snd_soc_write(codec, VT1603_R1c, val);
+	}
+	if (val & BIT3) {
+		pr_info("vt1603: right cld oc\n");
+		val = vt1603_hw_read(codec,VT1603_R1c);
+		val |= BIT3;
+		snd_soc_write(codec, VT1603_R1c, val);
+		val &= ~BIT3;
+		snd_soc_write(codec, VT1603_R1c, val);
+	}
+}
+
+static void vt1603_timer_handler(unsigned long data)
+{
+	struct vt1603_priv *vt1603 = (struct vt1603_priv *)data;
+	schedule_work(&vt1603->work);
+	mod_timer(&vt1603->timer, jiffies + msecs_to_jiffies(VT1603_TIMER_INTERVAL));
+}
+
+/*----------------------------------------------------------------------*/
+
+
+/*--------------------Mixer controls & dapm-----------------------------*/
+
+static const DECLARE_TLV_DB_SCALE(digital_tlv, -9550, 50, 1);
+static const DECLARE_TLV_DB_SCALE(digital_clv, -4350, 50, 1);
+static const DECLARE_TLV_DB_SCALE(adc_boost_clv, 0, 1000, 1);
+static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
+static const DECLARE_TLV_DB_SCALE(adc_pga_clv, -1650, 150, 1);
+static const DECLARE_TLV_DB_SCALE(analog_tlv, -2100, 300, 1);
+static const DECLARE_TLV_DB_SCALE(hp_mixer_clv, -5700, 100, 1);
+static const DECLARE_TLV_DB_SCALE(cld_mixer_clv, -300, 300, 1);
+
+static const char *adc_cutoff_freq_txt[] = {
+	"Hi-fi mode", 
+	"Voice mode 1", 
+	"Voice mode 2", 
+	"Voice mode 3",
+};
+
+static const struct soc_enum adc_cutoff_freq =
+SOC_ENUM_SINGLE(VT1603_R00, 3, 4, adc_cutoff_freq_txt);
+
+static const char *lr_txt[] = {
+	"Left", "Right"
+};
+
+static const char *clamper_limit_voltage_txt[] = {
+	"Vih=2.40V, Vil=0.90V, P=0.63W",
+	"Vih=2.45V, Vil=0.85V, P=0.72W",
+	"Vih=2.50V, ViL=0.80V, P=0.81W",
+	"Vih=2.55V, Vil=0.75V, P=0.91W",
+	"Vih=2.60V, Vil=0.70V, P=1.02W",
+	"Vih=2.65V, Vil=0.65V, P=1.12W",
+	"Vih=2.70V, Vil=0.60V, P=1.24W",
+	"Vih=2.75V, Vil=0.55V, P=1.36W",
+	"Vih=2.80V, Vil=0.50V, P=1.49W",
+	"Vih=2.85V, Vil=0.45V, P=1.62W",
+	"Vih=2.90V, Vil=0.40V, P=1.76W",
+	"Vih=2.95V, Vil=0.35V, P=1.90W",
+	"Vih=3.00V, Vil=0.30V, P=2.05W",
+	"Vih=3.05V, Vil=0.25V, P=2.20W",
+	"Vih=3.10V, Vil=0.20V, P=2.37W",
+	"Vih=3.15V, Vil=0.15V, P=2.53W",
+};
+
+static const char *clamper_work_voltage_txt[] = {
+	"Voh=3.10V, Vol=1.90V, P=0.36W",
+	"Voh=3.25V, Vol=1.75V, P=0.56W",
+	"Voh=3.40V, Vol=1.60V, P=0.81W",
+	"Voh=3.55V, Vol=1.45V, P=1.10W",
+	"Voh=3.70V, Vol=1.30V, P=1.44W",
+	"Voh=3.85V, Vol=1.15V, P=1.82W",
+	"Voh=4.00V, Vol=1.00V, P=2.25W",
+	"Voh=4.15V, Vol=0.85V, P=2.72W",
+};
+
+static const struct soc_enum dacl_src =
+SOC_ENUM_SINGLE(VT1603_R0b, 7, 2, lr_txt);
+
+static const struct soc_enum dacr_src =
+SOC_ENUM_SINGLE(VT1603_R0b, 6, 2, lr_txt);
+
+static const struct soc_enum adcl_src =
+SOC_ENUM_SINGLE(VT1603_R03, 3, 2, lr_txt);
+
+static const struct soc_enum adcr_src =
+SOC_ENUM_SINGLE(VT1603_R03, 2, 2, lr_txt);
+
+static const struct soc_enum clamper_limit_voltage =
+SOC_ENUM_SINGLE(VT1603_R87, 4, 16, clamper_limit_voltage_txt);
+
+static const struct soc_enum clamper_work_voltage =
+SOC_ENUM_SINGLE(VT1603_R87, 0, 8, clamper_work_voltage_txt);
+
+static const struct snd_kcontrol_new vt1603_snd_controls[] = {
+/* Volume */
+SOC_DOUBLE_R_TLV("Digital Capture Volume", VT1603_R01, VT1603_R02, 0, 0x7f, 0, digital_clv),
+SOC_DOUBLE_R_TLV("Digital Playback Volume", VT1603_R07, VT1603_R08, 0, 0xc0, 0, digital_tlv),
+SOC_DOUBLE_R_TLV("Analog Playback Volume", VT1603_R72, VT1603_R73, 0, 0x07, 1, analog_tlv),
+SOC_DOUBLE_R_TLV("Input Boost Volume", VT1603_R64, VT1603_R65, 6, 4, 0, adc_boost_clv),
+SOC_DOUBLE_R_TLV("Input PGA Volume", VT1603_R64, VT1603_R65, 1, 0x1f, 0, adc_pga_clv),
+SOC_DOUBLE_TLV("Output Boost Volume", VT1603_R06, 0, 3, 7, 0, dac_boost_tlv),
+SOC_DOUBLE_TLV("Output CLD Volume", VT1603_R91, 5, 2, 7, 0, cld_mixer_clv),
+SOC_DOUBLE_R_TLV("Output HP Volume", VT1603_R6a, VT1603_R6b, 0, 0x3f, 0, hp_mixer_clv),
+
+/* Switch */
+SOC_SINGLE("EQ Switch", VT1603_R28, 0, 1, 0),
+
+SOC_SINGLE("DAC Mono Mix Switch", VT1603_R0d, 4, 1, 0),
+SOC_SINGLE("Left DAC Switch", VT1603_R62, 5, 1, 0),
+SOC_SINGLE("Right DAC Switch", VT1603_R62, 4, 1, 0),
+
+SOC_ENUM("Left DAC Source", dacl_src),
+SOC_ENUM("Right DAC Source", dacr_src),
+
+SOC_ENUM("Digital Capture Voice Mode", adc_cutoff_freq),
+SOC_ENUM("Left ADC Source", adcl_src),
+SOC_ENUM("Right ADC Source", adcr_src),
+
+SOC_DOUBLE("Analog Playback Switch", VT1603_R71, 7, 6, 1, 1),
+SOC_SINGLE("Digital Playback Switch", VT1603_R0b, 0, 1, 1),
+SOC_DOUBLE("Digital Capture Switch", VT1603_R63, 7, 6, 1, 0),
+
+SOC_SINGLE("Headset Switch", VT1603_R68, 4, 1, 1),
+SOC_SINGLE("Headfree Switch", VT1603_R25, 1, 1, 0),
+
+SOC_SINGLE("Left CLD Switch", VT1603_R82, 3, 1, 1),
+SOC_SINGLE("Right CLD Switch", VT1603_R82, 4, 1, 1),
+
+SOC_ENUM("Limit Voltage of Power Clamper", clamper_limit_voltage),
+SOC_ENUM("Voltage of Clamper Work", clamper_work_voltage),
+};
+
+/* DAPM Controls */
+
+static const struct snd_kcontrol_new linmix_controls[] = {
+SOC_DAPM_SINGLE("Left Mic Switch", VT1603_R8e, 5, 1, 0),
+SOC_DAPM_SINGLE("Left Linein Switch", VT1603_R8e, 7, 1, 0),
+};
+
+static const struct snd_kcontrol_new rinmix_controls[] = {
+SOC_DAPM_SINGLE("Right Mic Switch", VT1603_R8e, 4, 1, 0),
+SOC_DAPM_SINGLE("Right Linein Switch", VT1603_R8e, 6, 1, 0),
+};
+
+static const struct snd_kcontrol_new loutmix_controls[] = {
+SOC_DAPM_SINGLE("Left Input Mixer Switch", VT1603_R71, 3, 1, 0),
+SOC_DAPM_SINGLE("DACL Switch", VT1603_R71, 1, 1, 0),
+};
+
+static const struct snd_kcontrol_new routmix_controls[] = {
+SOC_DAPM_SINGLE("Right Input Mixer Switch", VT1603_R71, 2, 1, 0),
+SOC_DAPM_SINGLE("DACR Switch", VT1603_R71, 0, 1, 0),
+};
+
+static const struct snd_kcontrol_new lcld_controls[] = {
+SOC_DAPM_SINGLE("Left Output Mixer Switch", VT1603_R90, 5, 1, 0),
+SOC_DAPM_SINGLE("DACL Switch", VT1603_R90, 4, 1, 0),
+};
+
+static const struct snd_kcontrol_new rcld_controls[] = {
+SOC_DAPM_SINGLE("Right Output Mixer Switch", VT1603_R90, 3, 1, 0),
+SOC_DAPM_SINGLE("DACR Switch", VT1603_R90, 2, 1, 0),
+};
+
+static const struct snd_kcontrol_new lhp_controls[] = {
+SOC_DAPM_SINGLE("Left Output Mixer Switch", VT1603_R69, 5, 1, 0),
+SOC_DAPM_SINGLE("DACL Switch", VT1603_R69, 7, 1, 0),
+};
+
+static const struct snd_kcontrol_new rhp_controls[] = {
+SOC_DAPM_SINGLE("Right Output Mixer Switch", VT1603_R69, 2, 1, 0),
+SOC_DAPM_SINGLE("DACR Switch", VT1603_R69, 4, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget vt1603_dapm_widgets[] = {
+SND_SOC_DAPM_INPUT("Mic"),
+SND_SOC_DAPM_INPUT("Linein"),
+SND_SOC_DAPM_INPUT("Internal ADC Source"),
+
+SND_SOC_DAPM_PGA("Left Input Boost", VT1603_R67, 7, 0, NULL, 0),
+SND_SOC_DAPM_PGA("Right Input Boost", VT1603_R67, 6, 0, NULL, 0),
+
+SND_SOC_DAPM_PGA("Left Input PGA", VT1603_R67, 5, 0, NULL, 0),
+SND_SOC_DAPM_PGA("Right Input PGA", VT1603_R67, 4, 0, NULL, 0),
+
+
+SND_SOC_DAPM_MIXER("Left Input Mixer", VT1603_R66, 6, 1,
+		linmix_controls, ARRAY_SIZE(linmix_controls)),
+SND_SOC_DAPM_MIXER("Right Input Mixer", VT1603_R66, 5, 1,
+		rinmix_controls, ARRAY_SIZE(rinmix_controls)),
+
+SND_SOC_DAPM_ADC("ADCL", "Left Capture", VT1603_R01, 7, 1),
+SND_SOC_DAPM_ADC("ADCR", "Right Capture", VT1603_R02, 7, 1),
+
+//SND_SOC_DAPM_DAC("DACL", "Left Playback", VT1603_R62, 5, 0),
+//SND_SOC_DAPM_DAC("DACR", "Right Playback", VT1603_R62, 4, 0),
+
+SND_SOC_DAPM_INPUT("DACL"),
+SND_SOC_DAPM_INPUT("DACR"),
+
+SND_SOC_DAPM_MIXER("Left Output Mixer", VT1603_R72, 6, 0,
+		loutmix_controls, ARRAY_SIZE(loutmix_controls)),
+SND_SOC_DAPM_MIXER("Right Output Mixer", VT1603_R73, 6, 0,
+		routmix_controls, ARRAY_SIZE(routmix_controls)),
+
+SND_SOC_DAPM_MIXER("Left CLD Mixer", VT1603_R91, 1, 0,
+		lcld_controls, ARRAY_SIZE(lcld_controls)),
+SND_SOC_DAPM_MIXER("Right CLD Mixer", VT1603_R91, 0, 0,
+		rcld_controls, ARRAY_SIZE(rcld_controls)),
+
+SND_SOC_DAPM_PGA("Left CLD PGA", VT1603_R82, 3, 1, NULL, 0),
+SND_SOC_DAPM_PGA("Right CLD PGA", VT1603_R82, 4, 1, NULL, 0),
+
+SND_SOC_DAPM_MIXER("Left HP Mixer", VT1603_R68, 1, 1,
+		lhp_controls, ARRAY_SIZE(lhp_controls)),
+SND_SOC_DAPM_MIXER("Right HP Mixer", VT1603_R68, 0, 1,
+		rhp_controls, ARRAY_SIZE(rhp_controls)),
+
+SND_SOC_DAPM_OUTPUT("Internal DAC Sink"),
+SND_SOC_DAPM_OUTPUT("Left HP"),
+SND_SOC_DAPM_OUTPUT("Right HP"),
+SND_SOC_DAPM_OUTPUT("Left SPK"),
+SND_SOC_DAPM_OUTPUT("Right SPK"),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+	/* Make DACs turn on when playing even if not mixed into any outputs */
+	//{"Internal DAC Sink", NULL, "DACL"},
+	//{"Internal DAC Sink", NULL, "DACR"},
+
+	/* Make ADCs turn on when recording even if not mixed from any inputs */
+	//{"ADCL", NULL, "Internal ADC Source"},
+	//{"ADCR", NULL, "Internal ADC Source"},
+
+	
+	/* Capture route */
+	
+	{ "Left Input Mixer", "Left Linein Switch", "Linein" },
+	{ "Left Input Mixer", "Left Mic Switch", "Mic" },
+	{ "Right Input Mixer", "Right Linein Switch", "Linein" },
+	{ "Right Input Mixer", "Right Mic Switch", "Mic" },
+
+	{ "Left Input Boost", NULL, "Left Input Mixer"},
+	{ "Right Input Boost", NULL, "Right Input Mixer"},
+
+	{ "Left Input PGA", NULL, "Left Input Boost"},
+	{ "Right Input PGA", NULL, "Right Input Boost"},
+
+	{ "ADCL", NULL, "Left Input PGA" },
+	{ "ADCR", NULL, "Right Input PGA" },
+
+	//{ "Left Input Mixer", NULL, "Left Input PGA" },
+	//{ "Right Input Mixer", NULL, "Right Input PGA" },
+	
+	/* Playback route */
+	
+	//{ "Left Output Mixer", "Left Input Mixer Switch", "Left Input Mixer" },
+	{ "Left Output Mixer", "Left Input Mixer Switch", "Left Input PGA"},
+	{ "Left Output Mixer", "DACL Switch", "DACL" },
+	//{ "Right Output Mixer", "Right Input Mixer Switch", "Right Input Mixer" },
+	{ "Right Output Mixer", "Right Input Mixer Switch", "Right Input PGA"}, 
+	{ "Right Output Mixer", "DACR Switch", "DACR" },
+	
+	{ "Left CLD Mixer", "Left Output Mixer Switch", "Left Output Mixer" },
+	{ "Left CLD Mixer", "DACL Switch", "DACL" },
+	{ "Right CLD Mixer", "Right Output Mixer Switch", "Right Output Mixer" },
+	{ "Right CLD Mixer", "DACR Switch", "DACR" },
+
+	{ "Left HP Mixer", "Left Output Mixer Switch", "Left Output Mixer" },
+	{ "Left HP Mixer", "DACL Switch", "DACL" },
+	{ "Right HP Mixer", "Right Output Mixer Switch", "Right Output Mixer" },
+	{ "Right HP Mixer", "DACR Switch", "DACR" },
+
+	{ "Left CLD PGA", NULL, "Left CLD Mixer" },
+	{ "Right CLD PGA", NULL, "Right CLD Mixer" },
+
+	{ "Left HP", NULL, "Left HP Mixer" },
+	{ "Right HP", NULL, "Right HP Mixer" },
+	
+	{ "Left SPK", NULL, "Left CLD PGA" },
+	{ "Right SPK", NULL, "Right CLD PGA" },
+};
+
+/*----------------------------------------------------------------------*/
+
+
+/*----------------------codec dai functions-----------------------------*/
+
+struct _coeff_div {
+	u32 mclk;
+	u32 rate;
+	u16 fs;
+	u8 sr;
+	u8 bclk_div;
+};
+
+/* codec hifi mclk clock divider coefficients */
+static const struct _coeff_div coeff_div[] = {
+	/* 8k */
+	{12288000, 8000, 1536, 0x4, 0x0},
+	/* 11.025k */
+	{11289600, 11025, 1024, 0x8, 0x0},
+	/* 16k */
+	{12288000, 16000, 768, 0x5, 0x0},
+	/* 22.05k */
+	{11289600, 22050, 512, 0x9, 0x0},
+	/* 32k */
+	{12288000, 32000, 384, 0x7, 0x0},
+	/* 44.1k */
+	{11289600, 44100, 256, 0x6, 0x07},
+	/* 48k */
+	{12288000, 48000, 256, 0x0, 0x07},
+	/* 96k */
+	{12288000, 96000, 128, 0x1, 0x04},
+};
+
+static inline int get_coeff(int mclk, int rate)
+{
+	int i;
+	for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
+		if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
+			return i;
+	}
+	return -EINVAL;
+}
+
+static int vt1603_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+		int clk_id, unsigned int freq, int dir)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	struct vt1603_priv *vt1603 = snd_soc_codec_get_drvdata(codec);
+	switch (freq) {
+	case 11289600:
+	case 12000000:
+	case 12288000:
+	case 16934400:
+	case 18432000:
+		vt1603->sysclk = freq;
+		return 0;
+	}
+	return -EINVAL;
+}
+
+static int vt1603_set_dai_fmt(struct snd_soc_dai *codec_dai, 
+		unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	u16 iface = snd_soc_read(codec, VT1603_R19);
+	
+	/* set master/slave audio interface */
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM:
+		iface |= BIT5 ;
+		break;	
+	case SND_SOC_DAIFMT_CBS_CFS:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* interface format */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		iface |= 0x0002;
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		iface |= 0x0001;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		iface |= 0x0003;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		iface |= 0x0013;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* clock inversion */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		iface |= 0x0090;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		iface |= 0x0080;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		iface |= 0x0010;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	snd_soc_write(codec, VT1603_R19, iface);
+	return 0;
+}
+
+static int vt1603_pcm_hw_params(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_codec *codec = rtd->codec;
+	struct vt1603_priv *vt1603 = snd_soc_codec_get_drvdata(codec);
+	u16 val;
+	u16 iface = snd_soc_read(codec, VT1603_R19) & 0x73;
+	int coeff = get_coeff(vt1603->sysclk, params_rate(params));
+	
+	/* bit size */
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		break;
+	case SNDRV_PCM_FORMAT_S20_3LE:
+		iface |= 0x04;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:	
+		iface |= 0x08;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		iface |= 0x0c;
+		break;
+	}
+	
+	/* set iface & srate */
+	snd_soc_write(codec, VT1603_R19, iface);
+	
+	if (coeff >= 0) {
+		val = snd_soc_read(codec, VT1603_R42);
+		val &= 0xf0;
+		val |= coeff_div[coeff].bclk_div;
+		snd_soc_write(codec, VT1603_R42, val);
+
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+			val = snd_soc_read(codec, VT1603_R05);
+			val &= 0xf0;
+			val |= coeff_div[coeff].sr;
+			snd_soc_write(codec, VT1603_R05, val);
+		}
+               
+		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+			val = snd_soc_read(codec, VT1603_R03);
+			val &= 0x0f;
+			val |= ((coeff_div[coeff].sr<<4) & 0xf0);
+			snd_soc_write(codec, VT1603_R03, val);
+		}
+	}
+
+	return 0;
+}
+
+static int vt1603_set_bias_level(struct snd_soc_codec *codec, 
+		enum snd_soc_bias_level level)
+{
+	u16 val;
+	
+	switch (level) {
+	case SND_SOC_BIAS_ON:
+		break;
+		
+	case SND_SOC_BIAS_PREPARE:
+		val = snd_soc_read(codec, VT1603_R96);
+		val |= BIT4+BIT5;
+		snd_soc_write(codec, VT1603_R96, val);
+		break;
+		
+	case SND_SOC_BIAS_STANDBY:
+		break;
+	
+	case SND_SOC_BIAS_OFF:
+		break;
+	}
+	
+	codec->dapm.bias_level = level;
+	return 0;
+}
+
+static struct snd_soc_dai_ops vt1603_dai_ops = {
+	.hw_params    = vt1603_pcm_hw_params,
+	.set_fmt      = vt1603_set_dai_fmt,
+	.set_sysclk   = vt1603_set_dai_sysclk,
+};
+
+struct snd_soc_dai_driver vt1603_dai = {
+	.name     = "VT1603",
+	.playback = {
+		.stream_name  = "Playback",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates        = SNDRV_PCM_RATE_8000_96000,
+		.formats      = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+	.capture  = {
+		.stream_name  = "Capture",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates        = SNDRV_PCM_RATE_8000_96000,
+		.formats      = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+	.ops      = &vt1603_dai_ops,
+};
+
+/*----------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------*/
+
+static void vt1603_get_boardinfo(void)
+{
+	int ret = 0;
+	unsigned char buf[64];
+	int varlen = sizeof(buf);
+
+	memset(buf, 0x0, sizeof(buf));
+	ret = wmt_getsyspara("wmt.audio.i2s", buf, &varlen);
+	if (ret == 0) {
+		sscanf(buf, "vt1603:%d:%d:%d", 
+			&vt1603_boardinfo.hp_level,
+			&vt1603_boardinfo.ignore_hp_event,
+			&vt1603_boardinfo.rec_src);
+	} 
+	else {
+		vt1603_boardinfo.hp_level = 0;
+		vt1603_boardinfo.ignore_hp_event = 0;
+		vt1603_boardinfo.rec_src = 0;
+	}
+	
+	memset(buf, 0x0, sizeof(buf));
+	vt1603_boardinfo.hpd_rm = 0;
+	ret = wmt_getsyspara("wmt.vt1603.hpd.rm", buf, &varlen);
+	if (ret == 0) {
+		sscanf(buf, "%d", 
+			&vt1603_boardinfo.hpd_rm);
+	} 
+	else {
+		vt1603_boardinfo.hpd_rm = 0;
+		
+	}
+	printk("<<<<%s hpd_rm %d\n", __func__, vt1603_boardinfo.hpd_rm);
+	
+	memset(buf, 0x0, sizeof(buf));
+	vt1603_boardinfo.hp_debounce = 0;
+	ret = wmt_getsyspara("wmt.vt1603.hp.debounce", buf, &varlen);
+	if (ret == 0) {
+		sscanf(buf, "%d", 
+			&vt1603_boardinfo.hp_debounce);
+	} 
+	else {
+		vt1603_boardinfo.hp_debounce = 0;
+		
+	}
+	printk("<<<<%s hp_debounce %d\n", __func__, vt1603_boardinfo.hp_debounce);
+	
+	
+	memset(buf, 0x0, sizeof(buf));
+	vt1603_boardinfo.timer_del = 0;
+	ret = wmt_getsyspara("wmt.vt1603.timer.del", buf, &varlen);
+	if (ret == 0) {
+		sscanf(buf, "%d", 
+			&vt1603_boardinfo.timer_del);
+	} 
+	else {
+		vt1603_boardinfo.timer_del = 0;
+		
+	}
+	printk("<<<<%s timer_del %d\n", __func__, vt1603_boardinfo.timer_del);
+	
+	memset(buf, 0x0, sizeof(buf));
+	vt1603_boardinfo.out_on = 0;
+	ret = wmt_getsyspara("wmt.vt1603.out_on", buf, &varlen);
+	if (ret == 0) {
+		sscanf(buf, "%d", 
+			&vt1603_boardinfo.out_on);
+	} 
+	else {
+		vt1603_boardinfo.out_on = 0;
+		
+	}
+	printk("<<<<%s out_on %d\n", __func__, vt1603_boardinfo.out_on);
+}
+
+static int vt1603_readproc(char *page, char **start, off_t off,
+		int count, int *eof, void *data)
+{
+	struct vt1603_priv *vt1603 = data;
+	pr_info("\nvt1603 regs dump:\n");
+	vt1603_regs_dump(vt1603->codec->control_data);
+	return 0;
+}
+
+static void vt1603_codec_reset(struct snd_soc_codec *codec)
+{
+	unsigned int val;
+	
+	vt1603_hw_write(codec, 0xc2, 0x01);
+	
+	// reset all registers to default settings
+	vt1603_hw_write(codec, VT1603_REG_RESET, 0xff);
+	vt1603_hw_write(codec, VT1603_REG_RESET, 0x00);
+	
+	val = vt1603_hw_read(codec, VT1603_R60);
+	val &= ~(BIT6 + BIT7);
+	vt1603_hw_write(codec, VT1603_R60, val);
+	val |= BIT6 + BIT7;
+	vt1603_hw_write(codec, VT1603_R60, val);
+}
+
+static void vt1603_codec_init(struct snd_soc_codec *codec)
+{
+	unsigned int val;
+	
+	// vt1603 touch uses irq low active???
+	if (vt1603_boardinfo.hp_level) {
+		//hp high
+		snd_soc_write(codec, VT1603_R21, 0xfd);
+	} 
+	else {
+		//hp low
+		snd_soc_write(codec, VT1603_R21, 0xff);
+	}
+
+	// vt1603 codec irq settings
+	snd_soc_write(codec, VT1603_R1b, 0xff);
+	snd_soc_write(codec, VT1603_R1b, 0xfd);
+	snd_soc_write(codec, VT1603_R1c, 0xff);
+	snd_soc_write(codec, VT1603_R1d, 0xff);
+	snd_soc_write(codec, VT1603_R24, 0x04);
+	
+	snd_soc_write(codec, VT1603_R95, 0x00);
+	snd_soc_write(codec, VT1603_R60, 0xc7);
+	snd_soc_write(codec, VT1603_R93, 0x02);
+	snd_soc_write(codec, VT1603_R7b, 0x10);
+	snd_soc_write(codec, VT1603_R92, 0x2c);
+
+	// r4 is reserved, I don't know more about it.
+	snd_soc_write(codec, VT1603_R04, 0x00);
+	// r9[5] is reserved, I don't know more about it.
+	val = snd_soc_read(codec, VT1603_R09);
+	val |= BIT5;
+	snd_soc_write(codec, VT1603_R09, val);
+	// r79 is reserved, I don't know more about it.
+	val = snd_soc_read(codec, VT1603_R79);
+	val |= BIT2;
+	val &= ~(BIT0+BIT1);
+	snd_soc_write(codec, VT1603_R79, val);
+	// r7a is reserved, I don't know more about it.
+	val = snd_soc_read(codec, VT1603_R7a);
+	val |= BIT3+BIT4+BIT7;
+	snd_soc_write(codec, VT1603_R7a, val);
+	// r87 is reserved, I don't know more about it.
+	snd_soc_write(codec, VT1603_R87, 0x90);
+	// r88 is reserved, I don't know more about it.
+	snd_soc_write(codec, VT1603_R88, 0x28);
+	// r8a is reserved, I don't know more about it.
+	val = snd_soc_read(codec, VT1603_R8a);
+	val |= BIT1;
+	snd_soc_write(codec, VT1603_R8a, val);
+	// enable CLK_SYS, CLK_DSP, CLK_AIF
+	val = snd_soc_read(codec, VT1603_R40);
+	val |= BIT4+BIT5+BIT6;
+	snd_soc_write(codec, VT1603_R40, val);
+	// set DAC sample rate divier=CLK_SYS/1, DAC clock divider=DAC_CLK_512X
+	val = snd_soc_read(codec, VT1603_R41);
+	val &= ~(BIT3+BIT2+BIT1+BIT0);
+	val |= BIT1;//add for mclk 24.576M, 10Khz 17kHz sine distortion 2014-6-12
+	snd_soc_write(codec, VT1603_R41, val);
+	// set BCLK rate=CLK_SYS/8
+	val = snd_soc_read(codec, VT1603_R42);
+	val |= BIT0+BIT1+BIT2;
+	val &= ~BIT3;
+	snd_soc_write(codec, VT1603_R42, val);
+	// enable VREF_SC_DA buffer
+	val = snd_soc_read(codec, VT1603_R61);
+	val |= BIT7;
+	snd_soc_write(codec, VT1603_R61, val);
+	// ADC VREF_SC offset voltage
+	snd_soc_write(codec, VT1603_R93, 0x20);
+	// set mic bias voltage = 90% * AVDD
+	val = snd_soc_read(codec, VT1603_R92);
+	val |= BIT2;
+	snd_soc_write(codec, VT1603_R92, val); 
+	// enable bypass for AOW0 parameterized HPF
+	val = snd_soc_read(codec, VT1603_R0a);
+	val |= BIT6;
+	snd_soc_write(codec, VT1603_R0a, val);
+	// CPVEE=2.2uF, the ripple frequency ON CPVEE above 22kHz, that will reduce HP noise
+	val = snd_soc_read(codec, VT1603_R7a);
+	val |= BIT6;
+	val &= ~BIT5;
+	snd_soc_write(codec, VT1603_R7a, val);
+
+	// set DAC soft mute mode
+	val = snd_soc_read(codec, VT1603_R0b);
+	val |= BIT1+BIT2;
+	snd_soc_write(codec, VT1603_R0b, val);
+	// DAC High Voltage Switch Control Signal enable???
+	val = snd_soc_read(codec, VT1603_R62);
+	val |= BIT7+BIT6;
+	val &= ~BIT3;
+	snd_soc_write(codec, VT1603_R62, val);
+	// enable microphone bias
+	val = snd_soc_read(codec, VT1603_R60);
+	val |= 0x0f;
+	snd_soc_write(codec, VT1603_R60, val);
+	// capture pga settings??
+	val = snd_soc_read(codec, VT1603_R8e);
+	val |= 0x0f;
+	snd_soc_write(codec, VT1603_R8e, val);
+	// capture pga settings??
+	val = snd_soc_read(codec, VT1603_R66);
+	val |= BIT1+BIT2+BIT3+BIT4; //
+	snd_soc_write(codec, VT1603_R66, val);
+	// PGA Zero Cross Detector Enable, Change gain on zero cross only
+	val = snd_soc_read(codec, VT1603_R64);
+	val |= BIT0;
+	snd_soc_write(codec, VT1603_R64, val);
+	val = snd_soc_read(codec, VT1603_R65);
+	val |= BIT0;
+	snd_soc_write(codec, VT1603_R65, val);
+	// enable hp output mode
+	val = snd_soc_read(codec, VT1603_R68);
+	val |= BIT2; 
+	snd_soc_write(codec, VT1603_R68, val);
+	// enable class-d, unmute channels
+	snd_soc_write(codec, VT1603_R7c, 0xe0);
+
+	// set DAC gain update
+	val = snd_soc_read(codec, VT1603_R05);
+	val |= BIT6+BIT7;
+	snd_soc_write(codec, VT1603_R05, val);
+	// set class-d AC boost gain=1.6
+	snd_soc_write(codec, VT1603_R97, 0x1c);
+	val = snd_soc_read(codec, VT1603_R97);
+	val = (val & (~0x07)) + 0x04;
+	snd_soc_write(codec, VT1603_R97, val);
+	// set ADC gain update, enable ADCDAT output
+	val = snd_soc_read(codec, VT1603_R00);
+	val |= BIT5+BIT6+BIT7;
+	snd_soc_write(codec, VT1603_R00, val);
+	
+	if (vt1603_boardinfo.out_on)
+	{
+		val = snd_soc_read(codec, VT1603_R68);
+		val &= ~(1<<4);
+		snd_soc_write(codec, VT1603_R68, val);
+	
+		val = snd_soc_read(codec, VT1603_R69);
+		val |= BIT2 +BIT5;
+		snd_soc_write(codec, VT1603_R69, val);
+		
+	
+		val = snd_soc_read(codec, VT1603_R25);
+		val  |= BIT1;
+		snd_soc_write(codec, VT1603_R25, val);
+	
+		val = snd_soc_read(codec, VT1603_R90);
+		val  |= BIT5 +BIT3;
+		snd_soc_write(codec, VT1603_R90, val);
+	
+	}
+	// DA DRC settings
+	//snd_soc_write(codec, VT1603_R0e, 0x0b);
+	//snd_soc_write(codec, VT1603_R0f, 0x94);
+	//snd_soc_write(codec, VT1603_R10, 0x02);
+	//snd_soc_write(codec, VT1603_R11, 0x00);
+	//snd_soc_write(codec, VT1603_R12, 0x60);
+}
+
+static int vt1603_reboot_notify(struct notifier_block *this,
+					unsigned long code, void *unused)
+{
+	unsigned int val;
+	struct vt1603_priv *priv = container_of(this, struct vt1603_priv, reboot_notifier);
+	struct snd_soc_codec *codec = priv->codec;
+	
+	printk("vt1603_reboot_notify [%lu]\n", code);
+
+	// power down headphone
+	val = snd_soc_read(codec, VT1603_R68);
+	val |= BIT4; 
+	snd_soc_write(codec, VT1603_R68, val);
+
+	// power down class-d
+	val = snd_soc_read(codec, VT1603_R25);
+	val &= ~BIT1; 
+	snd_soc_write(codec, VT1603_R25, val);
+	
+	return NOTIFY_DONE;
+}
+
+/*----------------------------------------------------------------------*/
+
+
+/*---------------------codec driver functions---------------------------*/
+
+static int vt1603_codec_suspend(struct snd_soc_codec *codec)
+{
+	struct vt1603_priv *vt1603 = snd_soc_codec_get_drvdata(codec);
+	if (!vt1603_boardinfo.timer_del) { //add 2014-1-22 tvbox
+		del_timer_sync(&vt1603->timer);
+	}	
+	return 0;
+}
+
+static int vt1603_codec_resume(struct snd_soc_codec *codec)
+{
+	struct vt1603_priv *vt1603 = snd_soc_codec_get_drvdata(codec);
+	int reg;
+	u16 *cache = codec->reg_cache;
+	unsigned int val;
+	int state = 0;//switch_get_state(&vt1603->hp_switch);
+	if (!vt1603_boardinfo.hpd_rm)
+		state = switch_get_state(&vt1603->hp_switch);	
+	// reset codec
+	vt1603_codec_reset(codec);
+
+	// restore codec registers
+	for (reg = 0; reg < ARRAY_SIZE(vt1603_regs); reg++) {
+		if (reg == VT1603_REG_RESET)
+			continue;
+		snd_soc_write(codec, reg, cache[reg]);
+	}
+
+	// restore headphone irq status
+	val = vt1603_hw_read(codec, VT1603_R21);
+	if ((vt1603_boardinfo.hp_level && state) ||
+			(!vt1603_boardinfo.hp_level && !state)) {
+		val |= BIT1;
+		snd_soc_write(codec, VT1603_R21, val);
+	}
+	else {
+		val &= ~BIT1;
+		snd_soc_write(codec, VT1603_R21, val);
+	}
+	
+	// open headphone detect
+	val = vt1603_hw_read(codec,VT1603_R1b);
+	val |= BIT1;
+	snd_soc_write(codec, VT1603_R1b, val);
+	val &= ~BIT1;
+	snd_soc_write(codec, VT1603_R1b, val);
+
+	// clear touch interrupt status??? why here???
+	snd_soc_write(codec, 0xca, 0x0f);
+	
+	if (!vt1603_boardinfo.timer_del) { //add 2014-1-22 tvbox
+		mod_timer(&vt1603->timer, jiffies + msecs_to_jiffies(50));
+	}	
+	
+	return 0;
+}
+
+static int vt1603_codec_probe(struct snd_soc_codec *codec)
+{
+	struct vt1603_priv *vt1603;
+	int ret;
+
+	vt1603 = kzalloc(sizeof(struct vt1603_priv), GFP_KERNEL);
+	if (vt1603 == NULL)
+		return -ENOMEM;
+	
+	gvt1603_codec = codec;//add 2013-9-2	
+	snd_soc_codec_set_drvdata(codec, vt1603);
+
+	codec->control_data = dev_get_platdata(codec->dev); 
+	
+	vt1603->codec = codec;
+// need close to use wmt-switch.c 2013-11-27
+	if (!vt1603_boardinfo.hpd_rm) {	
+		vt1603->hp_switch.name = "h2w";
+		switch_dev_register(&vt1603->hp_switch);
+	}	
+//need close
+	vt1603_codec_reset(codec);
+	vt1603_codec_init(codec);
+	vt1603_set_bias_level(codec, SND_SOC_BIAS_PREPARE);    
+
+	INIT_WORK(&vt1603->work, vt1603_codec_irq_handle);
+	if (!vt1603_boardinfo.timer_del) { //add 2014-1-20 tvbox
+		init_timer(&vt1603->timer);
+			vt1603->timer.data = (unsigned long)vt1603;
+		vt1603->timer.function = vt1603_timer_handler;
+		mod_timer(&vt1603->timer, jiffies + msecs_to_jiffies(2000));
+	}	
+
+	vt1603->proc = create_proc_read_entry("vt1603_dumpregs", 0666, NULL, 
+			vt1603_readproc, vt1603);
+
+	// register reboot notifier event
+	vt1603->reboot_notifier.notifier_call = vt1603_reboot_notify;
+	ret = register_reboot_notifier(&vt1603->reboot_notifier);
+	if (ret != 0)
+		pr_err("cannot register reboot notifier (err=%d)\n", ret);
+	
+	return 0;
+}
+
+static int vt1603_codec_remove(struct snd_soc_codec *codec)
+{
+	struct vt1603_priv *vt1603 = snd_soc_codec_get_drvdata(codec);
+	remove_proc_entry("vt1603_dumpregs", NULL);
+	if (!vt1603_boardinfo.hpd_rm) {	 
+		switch_dev_unregister(&vt1603->hp_switch);
+	}
+	del_timer_sync(&vt1603->timer);
+	vt1603_set_bias_level(codec, SND_SOC_BIAS_OFF);
+	kfree(vt1603);
+	return 0;
+}
+
+static struct snd_soc_codec_driver soc_codec_dev_vt1603 = {
+	.probe =	vt1603_codec_probe,
+	.remove =	vt1603_codec_remove,
+	.suspend =	vt1603_codec_suspend,
+	.resume =	vt1603_codec_resume,
+	.read =		vt1603_read,
+	.write =	 vt1603_write,
+	.set_bias_level = vt1603_set_bias_level,
+	.reg_cache_size = ARRAY_SIZE(vt1603_regs),
+	.reg_word_size = sizeof(u16),
+	.reg_cache_default = vt1603_regs,
+
+	.controls = vt1603_snd_controls,
+	.num_controls = ARRAY_SIZE(vt1603_snd_controls),
+	.dapm_widgets = vt1603_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(vt1603_dapm_widgets),
+	.dapm_routes = audio_map,
+	.num_dapm_routes = ARRAY_SIZE(audio_map),
+};
+
+static int __devinit vt1603_probe(struct platform_device *pdev)
+{
+	pr_info("<<<<%s \n", __FUNCTION__);
+	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_vt1603,
+			&vt1603_dai, 1);
+}
+
+static int __devexit vt1603_remove(struct platform_device *pdev)
+{
+	snd_soc_unregister_codec(&pdev->dev);
+	return 0;
+}
+
+static struct platform_driver vt1603_codec_driver = {
+	.driver = {
+		   .name = "vt1603-codec",
+		   .owner = THIS_MODULE,
+		   },
+	.probe = vt1603_probe,
+	.remove = __devexit_p(vt1603_remove),
+};
+
+static __init int vt1603_init(void)
+{
+	vt1603_get_boardinfo();
+	return platform_driver_register(&vt1603_codec_driver);
+}
+module_init(vt1603_init);
+
+static __exit void vt1603_exit(void)
+{
+	platform_driver_unregister(&vt1603_codec_driver);
+}
+module_exit(vt1603_exit);
+
+int vt1603_hwdep_ioctl(u8 rw_flag, u16 offset, u16 value)
+{
+	struct snd_soc_codec *codec = gvt1603_codec;
+	if (!codec){
+		printk("%s NULL!\n", __FUNCTION__);
+		return -1;
+	}
+	//info("rw_flag=%d, offset=0x%x, value=0x%x", rw_flag, offset, value);
+
+	if (rw_flag) {
+		if ((offset >= VT1603_R00) && (offset <= VT1603_R97)) {
+			snd_soc_write(codec, offset, value);
+		}
+		else {
+			printk("write to offset 0x%x is not allowed", offset);
+		}
+		return 0;
+	}
+	else {
+		return snd_soc_read(codec, offset);
+	}
+}
+EXPORT_SYMBOL(vt1603_hwdep_ioctl);
+
+MODULE_DESCRIPTION("WMT [ALSA SoC/codec] driver");
+MODULE_AUTHOR("WonderMedia Technologies, Inc.");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:vt1603-codec");
diff --git a/ANDROID_3.4.5/sound/soc/codecs/vt1603.h b/ANDROID_3.4.5/sound/soc/codecs/vt1603.h
new file mode 100755
index 00000000..ef130f10
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/codecs/vt1603.h
@@ -0,0 +1,119 @@
+/*++ 
+ * linux/sound/soc/codecs/vt1603.h
+ * WonderMedia audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+#ifndef _VT1603_H
+#define _VT1603_H
+
+#define BIT0	0x00000001
+#define BIT1	0x00000002
+#define BIT2	0x00000004
+#define BIT3	0x00000008
+#define BIT4	0x00000010
+#define BIT5	0x00000020
+#define BIT6	0x00000040
+#define BIT7	0x00000080
+#define BIT8	0x00000100
+
+#define VT1603_REG_RESET 0x15
+
+#define VT1603_R00  0x00
+#define VT1603_R01  0x01
+#define VT1603_R02  0x02
+#define VT1603_R03  0x03
+#define VT1603_R04  0x04
+#define VT1603_R05  0x05
+#define VT1603_R06  0x06
+#define VT1603_R07  0x07
+#define VT1603_R08  0x08
+#define VT1603_R09  0x09
+#define VT1603_R0a  0x0a
+#define VT1603_R0b  0x0b
+#define VT1603_R0c  0x0c
+#define VT1603_R0d  0x0d
+#define VT1603_R0e  0x0e
+#define VT1603_R0f  0x0f
+#define VT1603_R10  0x10
+#define VT1603_R11  0x11
+#define VT1603_R12  0x12
+#define VT1603_R13  0x13
+#define VT1603_R15  0x15
+#define VT1603_R19  0x19
+#define VT1603_R1b  0x1b
+#define VT1603_R1c  0x1c
+#define VT1603_R1d  0x1d
+#define VT1603_R20  0x20
+#define VT1603_R21  0x21
+#define VT1603_R23  0x23
+#define VT1603_R24  0x24
+#define VT1603_R25  0x25
+#define VT1603_R28  0x28
+#define VT1603_R29  0x29
+#define VT1603_R2a  0x2a
+#define VT1603_R2b  0x2b
+#define VT1603_R2c  0x2c
+#define VT1603_R2d  0x2d
+#define VT1603_R40  0x40
+#define VT1603_R41  0x41
+#define VT1603_R42  0x42
+#define VT1603_R47  0x47
+#define VT1603_R51  0x51
+#define VT1603_R52  0x52
+#define VT1603_R53  0x53
+#define VT1603_R5f  0x5f
+#define VT1603_R60  0x60
+#define VT1603_R61  0x61
+#define VT1603_R62  0x62
+#define VT1603_R63  0x63
+#define VT1603_R64  0x64
+#define VT1603_R65  0x65
+#define VT1603_R66  0x66
+#define VT1603_R67  0x67
+#define VT1603_R68  0x68
+#define VT1603_R69  0x69
+#define VT1603_R6a  0x6a
+#define VT1603_R6b  0x6b
+#define VT1603_R6d  0x6d
+#define VT1603_R6e  0x6e
+#define VT1603_R70  0x70
+#define VT1603_R71  0x71
+#define VT1603_R72  0x72
+#define VT1603_R73  0x73
+#define VT1603_R77  0x77
+#define VT1603_R79  0x79
+#define VT1603_R7a  0x7a
+#define VT1603_R7b  0x7b
+#define VT1603_R7c  0x7c
+#define VT1603_R82  0x82
+#define VT1603_R87  0x87
+#define VT1603_R88  0x88
+#define VT1603_R8a  0x8a
+#define VT1603_R8e  0x8e
+#define VT1603_R90  0x90
+#define VT1603_R91  0x91
+#define VT1603_R92  0x92
+#define VT1603_R93  0x93
+#define VT1603_R95  0x95
+#define VT1603_R96  0x96
+#define VT1603_R97  0x97
+
+#endif
diff --git a/ANDROID_3.4.5/sound/soc/codecs/wm8994.c b/ANDROID_3.4.5/sound/soc/codecs/wm8994.c
index f351b933..ab30c796 100644
--- a/ANDROID_3.4.5/sound/soc/codecs/wm8994.c
+++ b/ANDROID_3.4.5/sound/soc/codecs/wm8994.c
@@ -30,6 +30,8 @@
 #include <sound/tlv.h>
 #include <trace/events/asoc.h>
 
+#include <linux/proc_fs.h>
+
 #include <linux/mfd/wm8994/core.h>
 #include <linux/mfd/wm8994/registers.h>
 #include <linux/mfd/wm8994/pdata.h>
@@ -46,6 +48,9 @@
 #define WM8994_NUM_DRC 3
 #define WM8994_NUM_EQ  3
 
+static int aif1clk_on = 1;
+static struct proc_dir_entry *wm8994_proc;
+
 static struct {
 	unsigned int reg;
 	unsigned int mask;
@@ -493,6 +498,10 @@ static const char *aif_chan_src_text[] = {
 	"Left", "Right"
 };
 
+static const char *aif_mono_text[] = {
+	"Stereo", "Mono"
+};
+
 static const struct soc_enum aif1adcl_src =
 	SOC_ENUM_SINGLE(WM8994_AIF1_CONTROL_1, 15, 2, aif_chan_src_text);
 
@@ -517,6 +526,9 @@ static const struct soc_enum aif2dacl_src =
 static const struct soc_enum aif2dacr_src =
 	SOC_ENUM_SINGLE(WM8994_AIF2_CONTROL_2, 14, 2, aif_chan_src_text);
 
+static const struct soc_enum aif2dac_mono =
+	SOC_ENUM_SINGLE(WM8994_AIF2_CONTROL_2, 8, 2, aif_mono_text);
+
 static const char *osr_text[] = {
 	"Low Power", "High Performance",
 };
@@ -527,6 +539,16 @@ static const struct soc_enum dac_osr =
 static const struct soc_enum adc_osr =
 	SOC_ENUM_SINGLE(WM8994_OVERSAMPLING, 1, 2, osr_text);
 
+static const char *compand_mode_text[] = {
+	"u-law", "a-law",
+};
+
+static const struct soc_enum aif2dac_compand_mode = 
+	SOC_ENUM_SINGLE(WM8994_AIF2_CONTROL_2, 3, 2, compand_mode_text);
+
+static const struct soc_enum aif2adc_compand_mode = 
+	SOC_ENUM_SINGLE(WM8994_AIF2_CONTROL_2, 1, 2, compand_mode_text);
+
 static const struct snd_kcontrol_new wm8994_snd_controls[] = {
 SOC_DOUBLE_R_TLV("AIF1ADC1 Volume", WM8994_AIF1_ADC1_LEFT_VOLUME,
 		 WM8994_AIF1_ADC1_RIGHT_VOLUME,
@@ -548,6 +570,8 @@ SOC_ENUM("AIF1DACR Source", aif1dacr_src),
 SOC_ENUM("AIF2DACL Source", aif2dacl_src),
 SOC_ENUM("AIF2DACR Source", aif2dacr_src),
 
+SOC_ENUM("AIF2DAC Mono", aif2dac_mono),
+
 SOC_DOUBLE_R_TLV("AIF1DAC1 Volume", WM8994_AIF1_DAC1_LEFT_VOLUME,
 		 WM8994_AIF1_DAC1_RIGHT_VOLUME, 1, 96, 0, digital_tlv),
 SOC_DOUBLE_R_TLV("AIF1DAC2 Volume", WM8994_AIF1_DAC2_LEFT_VOLUME,
@@ -629,6 +653,15 @@ SOC_SINGLE_TLV("AIF2DAC 3D Stereo Volume", WM8994_AIF2_DAC_FILTERS_2,
 	       10, 15, 0, wm8994_3d_tlv),
 SOC_SINGLE("AIF2DAC 3D Stereo Switch", WM8994_AIF2_DAC_FILTERS_2,
 	   8, 1, 0),
+
+SOC_SINGLE("MICBIAS2 Switch", WM8994_POWER_MANAGEMENT_1, 5, 1, 0),
+SOC_SINGLE("MICBIAS1 Switch", WM8994_POWER_MANAGEMENT_1, 4, 1, 0),
+
+SOC_SINGLE("AIF2DAC Compand Switch", WM8994_AIF2_CONTROL_2, 4, 1, 0),
+SOC_SINGLE("AIF2ADC Compand Switch", WM8994_AIF2_CONTROL_2, 2, 1, 0),
+
+SOC_ENUM("AIF2DAC Compand Mode", aif2dac_compand_mode),
+SOC_ENUM("AIF2ADC Compand Mode", aif2adc_compand_mode),
 };
 
 static const struct snd_kcontrol_new wm8994_eq_controls[] = {
@@ -1161,9 +1194,9 @@ static int aif2clk_ev(struct snd_soc_dapm_widget *w,
 		snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_4,
 				    WM8994_AIF2ADCL_ENA |
 				    WM8994_AIF2ADCR_ENA, adc);
-		snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5,
+		/*snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5,
 				    WM8994_AIF2DACL_ENA |
-				    WM8994_AIF2DACR_ENA, dac);
+				    WM8994_AIF2DACR_ENA, dac);*/
 		snd_soc_update_bits(codec, WM8994_CLOCKING_1,
 				    WM8994_AIF2DSPCLK_ENA |
 				    WM8994_SYSDSPCLK_ENA,
@@ -1174,11 +1207,11 @@ static int aif2clk_ev(struct snd_soc_dapm_widget *w,
 				    WM8994_AIF2ADCR_ENA,
 				    WM8994_AIF2ADCL_ENA |
 				    WM8994_AIF2ADCR_ENA);
-		snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5,
+		/*snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5,
 				    WM8994_AIF2DACL_ENA |
 				    WM8994_AIF2DACR_ENA,
 				    WM8994_AIF2DACL_ENA |
-				    WM8994_AIF2DACR_ENA);
+				    WM8994_AIF2DACR_ENA);*/
 		break;
 
 	case SND_SOC_DAPM_POST_PMU:
@@ -1190,9 +1223,9 @@ static int aif2clk_ev(struct snd_soc_dapm_widget *w,
 
 	case SND_SOC_DAPM_PRE_PMD:
 	case SND_SOC_DAPM_POST_PMD:
-		snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5,
+		/*snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5,
 				    WM8994_AIF2DACL_ENA |
-				    WM8994_AIF2DACR_ENA, 0);
+				    WM8994_AIF2DACR_ENA, 0);*/
 		snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_4,
 				    WM8994_AIF2ADCL_ENA |
 				    WM8994_AIF2ADCR_ENA, 0);
@@ -1289,10 +1322,14 @@ static int late_disable_ev(struct snd_soc_dapm_widget *w,
 	switch (event) {
 	case SND_SOC_DAPM_POST_PMD:
 		if (wm8994->aif1clk_disable) {
-			aif1clk_ev(w, kcontrol, SND_SOC_DAPM_PRE_PMD);
-			snd_soc_update_bits(codec, WM8994_AIF1_CLOCKING_1,
+			
+				aif1clk_ev(w, kcontrol, SND_SOC_DAPM_PRE_PMD);
+				if (!aif1clk_on){  
+					snd_soc_update_bits(codec, WM8994_AIF1_CLOCKING_1,
 					    WM8994_AIF1CLK_ENA_MASK, 0);
-			aif1clk_ev(w, kcontrol, SND_SOC_DAPM_POST_PMD);
+				}  
+				aif1clk_ev(w, kcontrol, SND_SOC_DAPM_POST_PMD);
+				
 			wm8994->aif1clk_disable = 0;
 		}
 		if (wm8994->aif2clk_disable) {
@@ -1917,6 +1954,10 @@ static const struct snd_soc_dapm_route intercon[] = {
 	{ "AIF2ADC Mux", "AIF2ADCDAT", "AIF2ADCR" },
 	{ "AIF2ADC Mux", "AIF3DACDAT", "AIF3ADCDAT" },
 
+	{ "AIF3ADC Mux", "AIF1ADCDAT", "AIF1ADCDAT" },
+	{ "AIF3ADC Mux", "AIF2ADCDAT", "AIF2ADCDAT" },
+	{ "AIF3ADC Mux", "AIF2DACDAT", "AIF2ADCDAT" },
+
 	/* DAC1 inputs */
 	{ "DAC1L Mixer", "AIF2 Switch", "AIF2DACL" },
 	{ "DAC1L Mixer", "AIF1.2 Switch", "AIF1DAC2L" },
@@ -2695,7 +2736,7 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream,
 		return -EINVAL;
 	}
 
-	bclk_rate = params_rate(params) * 2;
+	bclk_rate = params_rate(params) * 4;
 	switch (params_format(params)) {
 	case SNDRV_PCM_FORMAT_S16_LE:
 		bclk_rate *= 16;
@@ -2780,7 +2821,7 @@ static int wm8994_hw_params(struct snd_pcm_substream *substream,
 		lrclk, bclk_rate / lrclk);
 
 	snd_soc_update_bits(codec, aif1_reg, WM8994_AIF1_WL_MASK, aif1);
-	snd_soc_update_bits(codec, aif2_reg, WM8994_AIF1_MONO, aif2);
+	//snd_soc_update_bits(codec, aif2_reg, WM8994_AIF1_MONO, aif2);
 	snd_soc_update_bits(codec, bclk_reg, WM8994_AIF1_BCLK_DIV_MASK, bclk);
 	snd_soc_update_bits(codec, lrclk_reg, WM8994_AIF1DAC_RATE_MASK,
 			    lrclk);
@@ -3053,6 +3094,11 @@ static int wm8994_codec_suspend(struct snd_soc_codec *codec)
 	switch (control->type) {
 	case WM8994:
 		snd_soc_update_bits(codec, WM8994_MICBIAS, WM8994_MICD_ENA, 0);
+		if (aif1clk_on){  
+			snd_soc_update_bits(codec, WM8994_AIF1_CLOCKING_1,
+				WM8994_AIF1CLK_ENA_MASK, 0);
+		//printk("<<<<%s\n", __FUNCTION__);	 	
+		}  //add 2013-7-11
 		break;
 	case WM1811:
 		snd_soc_update_bits(codec, WM8994_ANTIPOP_2,
@@ -3779,6 +3825,43 @@ static irqreturn_t wm8994_temp_shut(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
+static int wm8994_readproc(char *page, char **start, off_t off,
+		int count, int *eof, void *data)
+{
+#define WM8994_CACHE_SIZE 1570
+
+	int ret;
+	unsigned short reg;
+	struct wm8994_priv *wm8994 = data;
+	
+	printk(KERN_INFO "\nwm8994 regs dump:\n");
+	printk(KERN_INFO "\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
+	for (reg = 0; reg < WM8994_CACHE_SIZE; reg++) {
+		ret = wm8994_reg_read(wm8994->wm8994, reg);
+		if (ret < 0) {
+			printk(KERN_INFO "\nwm8994_reg_read reg[%04x] error\n", reg);
+			goto out;
+		}
+		if (reg%4 == 0) printk("\n");
+		printk("reg[%04x]=%04x  ", reg, ret);
+	}
+
+	printk("\n\nGPIO Pin settings:\n");
+	for (reg = WM8994_GPIO_1; reg < WM8994_GPIO_1+11; reg++) {
+		ret = wm8994_reg_read(wm8994->wm8994, reg);
+		if (ret < 0) {
+			printk(KERN_INFO "\nwm8994_reg_read reg[%04x] error\n", reg);
+			goto out;
+		}
+		if (reg%4 == 0) printk("\n");
+		printk("reg[%04x]=%04x  ", reg, ret);
+	}
+
+out:
+	printk(KERN_INFO "\n<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n\n");
+	return 0;
+}
+
 static int wm8994_codec_probe(struct snd_soc_codec *codec)
 {
 	struct wm8994 *control = dev_get_drvdata(codec->dev->parent);
@@ -4145,6 +4228,15 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec)
 		break;
 	}
 
+	snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_5,
+				    WM8994_AIF2DACL_ENA |
+				    WM8994_AIF2DACR_ENA,
+				    WM8994_AIF2DACL_ENA |
+				    WM8994_AIF2DACR_ENA);
+
+	wm8994_proc = create_proc_read_entry("wm8994_dumpregs", 0666, NULL, 
+			wm8994_readproc, wm8994);
+
 	return 0;
 
 err_irq:
diff --git a/ANDROID_3.4.5/sound/soc/codecs/wmt_fm34.c b/ANDROID_3.4.5/sound/soc/codecs/wmt_fm34.c
new file mode 100755
index 00000000..cee4dce9
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/codecs/wmt_fm34.c
@@ -0,0 +1,830 @@
+/*++ 
+ * linux/sound/soc/codecs/wmt_fm34.c
+ * WonderMedia echo cancellation driver
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/version.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/kdev_t.h>
+#include <asm/page.h>
+#include <linux/cdev.h>
+#include <linux/device.h>
+
+#include <linux/gpio.h>
+#include <mach/wmt_iomux.h>
+
+#define FM34_DEVID      0x501a
+#define FM34_I2C_BUS_NR 4
+
+#define FM34_CTRL_NAME  "wmt_echo"
+static int fm34_ctrl_major = 0;
+static struct cdev fm34_ctrl_dev;
+static struct class *fm34_ctrl_class;
+
+// FM34 control interface commands
+#define FM34_CMD_ECHO        _IOWR('E', 0x01, int)
+#define FM34_CMD_BYPASS      _IOWR('E', 0x02, int)
+#define FM34_CMD_INCALL_MAIN_MIC     _IOWR('E', 0x04, int)
+#define FM34_CMD_INCALL_HEADSET_MIC  _IOWR('E', 0x08, int)
+#define FM34_CMD_CAPTURE_MAIN_MIC    _IOWR('E', 0x10, int)
+#define FM34_CMD_CAPTURE_HEADSET_MIC _IOWR('E', 0x20, int)
+
+enum FM34_MODE_TYPE {
+	FM34_MODE_ECHO,
+	FM34_MODE_BYPASS,
+	FM34_MODE_MAX,
+};
+
+enum FM34_MIC_SOURCE {
+	FM34_INCALL_MIC_MAIN,
+	FM34_INCALL_MIC_HEADSET,
+	FM34_CAPTURE_MIC_MAIN,
+	FM34_CAPTURE_MIC_HEADSET,
+	FM34_MIC_MAX,
+};
+
+extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen);
+
+struct fm34_ctrl_gpo {
+	int enable;
+	int gpio;
+	int active;
+};
+
+static struct fm34_ctrl_gpo fm34_reset;
+static struct fm34_ctrl_gpo fm34_powerdown;
+static struct fm34_ctrl_gpo fm34_bypass;
+
+struct fm34 {
+	int (*read_dev)(struct fm34 *fm34, 
+			    const u8 wdata[], int wsize, 
+			    u8 rdata[], int rsize);
+	int (*write_dev)(struct fm34 *fm34, const u8 wdata[], int wsize);
+	void *control_data;
+	struct device *dev;
+	struct delayed_work delaywork;
+};
+
+static struct fm34 *fm34_context;
+static enum FM34_MODE_TYPE fm_mode = FM34_MODE_MAX;
+static enum FM34_MIC_SOURCE fm_mic = FM34_MIC_MAX;
+
+static const u8 wmt_fm34_incall_main_mic[] = {
+	0xFC, 0xF3, 0x3B, 0x22, 0xC0, 0x00, 0x04,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC1, 0x00, 0x04,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC2, 0x00, 0x03,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC3, 0x00, 0x03,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC6, 0x00, 0x0C,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC7, 0x00, 0x0C,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC8, 0x00, 0x2C,
+    0xFC, 0xF3, 0x3B, 0x22, 0xD2, 0x12, 0x94,
+    0xFC, 0xF3, 0x3B, 0x22, 0xEE, 0x00, 0x00,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF2, 0x00, 0x40,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF6, 0x00, 0x03,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF8, 0x80, 0x05,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF9, 0x20, 0xFF,
+    0xFC, 0xF3, 0x3B, 0x22, 0xFA, 0x22, 0x8B,
+    0xFC, 0xF3, 0x3B, 0x23, 0x01, 0x00, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x02, 0x01, 0x01,
+    0xFC, 0xF3, 0x3B, 0x23, 0x03, 0x09, 0x01,
+    0xFC, 0xF3, 0x3B, 0x23, 0x04, 0x03, 0x1E,
+    0xFC, 0xF3, 0x3B, 0x23, 0x05, 0x00, 0x01,
+    0xFC, 0xF3, 0x3B, 0x23, 0x07, 0xF0, 0xF0,
+    0xFC, 0xF3, 0x3B, 0x23, 0x08, 0x08, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x0A, 0x1B, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x0C, 0x04, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x48, 0x08, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x49, 0x06, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x6E, 0x20, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x6F, 0x0A, 0x0A,
+    0xFC, 0xF3, 0x3B, 0x23, 0x70, 0x0F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x73, 0x22, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x74, 0x18, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x75, 0x12, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x77, 0x30, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x7B, 0x00, 0x08,
+    0xFC, 0xF3, 0x3B, 0x23, 0x86, 0x48, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x8C, 0x10, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x9C, 0x60, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x9D, 0x40, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x9E, 0x40, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xBD, 0x30, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xCE, 0x40, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xCF, 0x0A, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD0, 0x08, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD1, 0x02, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD2, 0x05, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xED, 0x05, 0x40,
+    0xFC, 0xF3, 0x3B, 0x23, 0xEE, 0x08, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD5, 0x30, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x80, 0x7F, 0xFF,
+    0xFC, 0xF3, 0x3B, 0x23, 0x81, 0x40, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x82, 0x04, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x83, 0x04, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x84, 0x00, 0x04,
+    0xFC, 0xF3, 0x3B, 0x23, 0x85, 0x00, 0x05,
+    0xFC, 0xF3, 0x3B, 0x23, 0x8E, 0x70, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x90, 0xA9, 0x87,
+    0xFC, 0xF3, 0x3B, 0x23, 0x91, 0x76, 0x54,
+    0xFC, 0xF3, 0x3B, 0x23, 0x93, 0x44, 0x55,
+    0xFC, 0xF3, 0x3B, 0x23, 0x94, 0x55, 0x66,
+    0xFC, 0xF3, 0x3B, 0x23, 0x95, 0x66, 0x77,
+    0xFC, 0xF3, 0x3B, 0x23, 0x96, 0x20, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x97, 0x30, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x98, 0x00, 0x20,
+    0xFC, 0xF3, 0x3B, 0x23, 0xA5, 0x00, 0x06,
+    0xFC, 0xF3, 0x3B, 0x23, 0xA8, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xA9, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xAA, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xAB, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xAC, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xAD, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xAE, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xAF, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xB0, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xB1, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x09, 0x08, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xB3, 0x00, 0x20,
+    0xFC, 0xF3, 0x3B, 0x23, 0xB4, 0x00, 0x18,
+    0xFC, 0xF3, 0x3B, 0x23, 0x10, 0x48, 0x90,
+    0xFC, 0xF3, 0x3B, 0x23, 0x2F, 0x01, 0x40,
+    0xFC, 0xF3, 0x3B, 0x23, 0x32, 0x00, 0x30,
+    0xFC, 0xF3, 0x3B, 0x23, 0x33, 0x00, 0x0C,
+    0xFC, 0xF3, 0x3B, 0x23, 0x37, 0x00, 0x02,
+    0xFC, 0xF3, 0x3B, 0x23, 0x39, 0x00, 0x01,
+    0xFC, 0xF3, 0x3B, 0x22, 0xFB, 0x00, 0x00
+};
+
+static const u8 wmt_fm34_incall_headset_mic[] = {
+	0xFC, 0xF3, 0x3B, 0x22, 0xC0, 0x00, 0x04,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC1, 0x00, 0x04,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC2, 0x00, 0x03,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC3, 0x00, 0x03,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC6, 0x00, 0x0C,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC7, 0x00, 0x0C,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC8, 0x00, 0x2C,
+    0xFC, 0xF3, 0x3B, 0x22, 0xD2, 0x12, 0x94,
+    0xFC, 0xF3, 0x3B, 0x22, 0xEE, 0x00, 0x00,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF2, 0x00, 0x40,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF6, 0x00, 0x03,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF8, 0x80, 0x05,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF9, 0x20, 0xFF,
+    0xFC, 0xF3, 0x3B, 0x22, 0xFA, 0x22, 0x8B,
+    0xFC, 0xF3, 0x3B, 0x23, 0x01, 0x00, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x02, 0x01, 0x01,
+    0xFC, 0xF3, 0x3B, 0x23, 0x03, 0x09, 0x01,
+    0xFC, 0xF3, 0x3B, 0x23, 0x04, 0x03, 0x1E,
+    0xFC, 0xF3, 0x3B, 0x23, 0x05, 0x00, 0x01,
+    0xFC, 0xF3, 0x3B, 0x23, 0x07, 0xF0, 0xF0,
+    0xFC, 0xF3, 0x3B, 0x23, 0x08, 0x08, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x0A, 0x1A, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x0C, 0x04, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x48, 0x08, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x49, 0x06, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x6E, 0x20, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x6F, 0x0A, 0x0A,
+    0xFC, 0xF3, 0x3B, 0x23, 0x70, 0x0F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x73, 0x22, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x74, 0x18, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x75, 0x12, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x77, 0x30, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x7B, 0x00, 0x08,
+    0xFC, 0xF3, 0x3B, 0x23, 0x86, 0x48, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x8C, 0x10, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x9C, 0x60, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x9D, 0x40, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x9E, 0x40, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xBD, 0x30, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xCE, 0x40, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xCF, 0x08, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD0, 0x06, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD1, 0x02, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD2, 0x05, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xED, 0x05, 0x40,
+    0xFC, 0xF3, 0x3B, 0x23, 0xEE, 0x08, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD5, 0x20, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x80, 0x7F, 0xFF,
+    0xFC, 0xF3, 0x3B, 0x23, 0x81, 0x40, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x82, 0x04, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x83, 0x04, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x84, 0x00, 0x04,
+    0xFC, 0xF3, 0x3B, 0x23, 0x85, 0x00, 0x05,
+    0xFC, 0xF3, 0x3B, 0x23, 0x8E, 0x70, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x90, 0xA9, 0x87,
+    0xFC, 0xF3, 0x3B, 0x23, 0x91, 0x76, 0x54,
+    0xFC, 0xF3, 0x3B, 0x23, 0x93, 0x44, 0x55,
+    0xFC, 0xF3, 0x3B, 0x23, 0x94, 0x55, 0x66,
+    0xFC, 0xF3, 0x3B, 0x23, 0x95, 0x66, 0x77,
+    0xFC, 0xF3, 0x3B, 0x23, 0x96, 0x20, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x97, 0x30, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x98, 0x00, 0x20,
+    0xFC, 0xF3, 0x3B, 0x23, 0xA5, 0x00, 0x06,
+    0xFC, 0xF3, 0x3B, 0x23, 0xA8, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xA9, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xAA, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xAB, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xAC, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xAD, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xAE, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xAF, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xB0, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xB1, 0x7F, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x09, 0x08, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xB3, 0x00, 0x06,
+    0xFC, 0xF3, 0x3B, 0x23, 0xB4, 0x00, 0x01,
+    0xFC, 0xF3, 0x3B, 0x23, 0x10, 0x48, 0x90,
+    0xFC, 0xF3, 0x3B, 0x23, 0x2F, 0x01, 0x40,
+    0xFC, 0xF3, 0x3B, 0x23, 0x32, 0x00, 0x30,
+    0xFC, 0xF3, 0x3B, 0x23, 0x33, 0x00, 0x0C,
+    0xFC, 0xF3, 0x3B, 0x23, 0x37, 0x00, 0x02,
+    0xFC, 0xF3, 0x3B, 0x23, 0x39, 0x00, 0x01,
+    0xFC, 0xF3, 0x3B, 0x22, 0xFB, 0x00, 0x00
+};
+
+static const u8 wmt_fm34_capture_main_mic[] = {
+	0xFC, 0xF3, 0x3B, 0x22, 0x9F, 0x00, 0x01,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC6, 0x00, 0x0C,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC7, 0x00, 0x0C,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC8, 0x00, 0x2C,
+    0xFC, 0xF3, 0x3B, 0x22, 0xEE, 0x00, 0x00,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF2, 0x00, 0x40,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF6, 0x00, 0x03,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF7, 0x01, 0x00,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF8, 0x80, 0x02,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF9, 0x67, 0xFF,
+    0xFC, 0xF3, 0x3B, 0x22, 0xFA, 0x23, 0x8B,
+    0xFC, 0xF3, 0x3B, 0x23, 0x01, 0x00, 0x02,
+    0xFC, 0xF3, 0x3B, 0x23, 0x02, 0x00, 0x01,
+    0xFC, 0xF3, 0x3B, 0x23, 0x03, 0x29, 0x88,
+    0xFC, 0xF3, 0x3B, 0x23, 0x04, 0x20, 0x0E,
+    0xFC, 0xF3, 0x3B, 0x23, 0x05, 0x00, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x07, 0x00, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x08, 0x0C, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x0A, 0x1B, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x0C, 0x02, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x48, 0x08, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x6E, 0x7F, 0xFF,
+    0xFC, 0xF3, 0x3B, 0x23, 0x6F, 0x0B, 0x05,
+    0xFC, 0xF3, 0x3B, 0x23, 0x70, 0x0C, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x73, 0x18, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x74, 0x21, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x75, 0x18, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x7B, 0x00, 0x08,
+    0xFC, 0xF3, 0x3B, 0x23, 0x82, 0x05, 0x80,
+    0xFC, 0xF3, 0x3B, 0x23, 0x83, 0x03, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x84, 0x00, 0x03,
+    0xFC, 0xF3, 0x3B, 0x23, 0x86, 0x48, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x8C, 0x10, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x90, 0x44, 0x44,
+    0xFC, 0xF3, 0x3B, 0x23, 0x91, 0x44, 0x44,
+    0xFC, 0xF3, 0x3B, 0x23, 0x92, 0x44, 0x44,
+    0xFC, 0xF3, 0x3B, 0x23, 0x93, 0x44, 0x44,
+    0xFC, 0xF3, 0x3B, 0x23, 0xBD, 0x30, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xCE, 0x40, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xCF, 0x12, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD0, 0x10, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD1, 0x07, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD2, 0x05, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD5, 0x70, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xED, 0x0A, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xEE, 0x10, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x28, 0x7F, 0xFF,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF1, 0xD0, 0x00,
+    0xFC, 0xF3, 0x3B, 0x22, 0xFB, 0x00, 0x00
+};
+
+static const u8 wmt_fm34_capture_headset_mic[] = {
+	0xFC, 0xF3, 0x3B, 0x22, 0x9F, 0x00, 0x01,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC6, 0x00, 0x0C,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC7, 0x00, 0x0C,
+    0xFC, 0xF3, 0x3B, 0x22, 0xC8, 0x00, 0x2C,
+    0xFC, 0xF3, 0x3B, 0x22, 0xEE, 0x00, 0x00,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF2, 0x00, 0x40,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF6, 0x00, 0x03,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF7, 0x01, 0x00,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF8, 0x80, 0x02,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF9, 0x67, 0xFF,
+    0xFC, 0xF3, 0x3B, 0x22, 0xFA, 0x23, 0x8B,
+    0xFC, 0xF3, 0x3B, 0x23, 0x01, 0x00, 0x02,
+    0xFC, 0xF3, 0x3B, 0x23, 0x02, 0x00, 0x01,
+    0xFC, 0xF3, 0x3B, 0x23, 0x03, 0x29, 0x88,
+    0xFC, 0xF3, 0x3B, 0x23, 0x04, 0x20, 0x0E,
+    0xFC, 0xF3, 0x3B, 0x23, 0x05, 0x00, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x07, 0x00, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x08, 0x0C, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x0A, 0x1A, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x0C, 0x02, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x48, 0x08, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x6E, 0x7F, 0xFF,
+    0xFC, 0xF3, 0x3B, 0x23, 0x6F, 0x0B, 0x05,
+    0xFC, 0xF3, 0x3B, 0x23, 0x70, 0x0C, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x73, 0x18, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x74, 0x21, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x75, 0x18, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x7B, 0x00, 0x08,
+    0xFC, 0xF3, 0x3B, 0x23, 0x82, 0x05, 0x80,
+    0xFC, 0xF3, 0x3B, 0x23, 0x83, 0x03, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x84, 0x00, 0x03,
+    0xFC, 0xF3, 0x3B, 0x23, 0x86, 0x48, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x8C, 0x10, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x90, 0x44, 0x44,
+    0xFC, 0xF3, 0x3B, 0x23, 0x91, 0x44, 0x44,
+    0xFC, 0xF3, 0x3B, 0x23, 0x92, 0x44, 0x44,
+    0xFC, 0xF3, 0x3B, 0x23, 0x93, 0x44, 0x44,
+    0xFC, 0xF3, 0x3B, 0x23, 0xBD, 0x30, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xCE, 0x40, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xCF, 0x12, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD0, 0x10, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD1, 0x07, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD2, 0x05, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xD5, 0x70, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xED, 0x0A, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0xEE, 0x10, 0x00,
+    0xFC, 0xF3, 0x3B, 0x23, 0x28, 0x7F, 0xFF,
+    0xFC, 0xF3, 0x3B, 0x22, 0xF1, 0xD0, 0x00,
+    0xFC, 0xF3, 0x3B, 0x22, 0xFB, 0x00, 0x00
+};
+
+static int fm34_check_functionality(struct fm34 *fm34)
+{
+	u8 rdata1, rdata2;
+	int devid = 0;
+	const u8 wdata1[] = {
+		0xFC, 0xF3, 0x27, 0x37, 0xFF
+	};
+	const u8 wdata2[] = {
+		0xFC, 0xF3, 0x60, 0x25
+	};
+	const u8 wdata3[] = {
+		0xFC, 0xF3, 0x60, 0x26
+	};
+		
+	if (fm34->write_dev(fm34, wdata1, sizeof(wdata1)))
+		return 0;
+
+	if (fm34->read_dev(fm34, wdata2, sizeof(wdata2), &rdata1, 1) ||
+		fm34->read_dev(fm34, wdata3, sizeof(wdata3), &rdata2, 1))
+		return 0;
+
+	devid = (rdata2 << 8) | rdata1;
+	printk("-->fm34_check_functionality: %x\n", devid);
+	if (devid == FM34_DEVID)
+		return 1;
+	
+	return 0;
+}
+
+static int fm34_i2c_write(struct fm34 *fm34, const u8 wdata[], int wsize)
+{
+	int ret;
+	struct i2c_client *i2c = fm34->control_data;
+	struct i2c_msg xfer[1];
+
+	/*
+	 * [MSG1]: fill the register address data
+	 * fill the data Tx buffer
+	 */
+	xfer[0].addr = i2c->addr;
+	xfer[0].flags = 0 ;
+	xfer[0].flags &= ~(I2C_M_RD);
+	xfer[0].buf = (__u8 *)wdata;
+	xfer[0].len = wsize;
+
+	/* i2c_transfer returns number of messages transferred */
+	ret = i2c_transfer(i2c->adapter, xfer, ARRAY_SIZE(xfer));
+	if (ret != ARRAY_SIZE(xfer)) {
+		pr_err("fm34_i2c_write err[%d]\n", ret);
+		if (ret < 0)
+			return ret;
+		else
+			return -EIO;
+	} else
+		return 0;
+}
+
+static int fm34_i2c_read(struct fm34 *fm34, 
+			    const u8 wdata[], int wsize, 
+			    u8 rdata[], int rsize)
+{
+	int ret;
+	struct i2c_client *i2c = fm34->control_data;
+	struct i2c_msg xfer[2];
+
+	/* [MSG1] fill the register address data */
+	xfer[0].addr = i2c->addr;
+	xfer[0].flags = 2;	/* Read the register val */
+	xfer[0].buf = (__u8 *)wdata;
+	xfer[0].len = wsize;
+	
+	/* [MSG2] fill the data rx buffer */
+	xfer[1].addr = i2c->addr;
+	xfer[1].flags = I2C_M_RD;	/* Read the register val */
+	xfer[1].len = rsize;	/* only n bytes */
+	xfer[1].buf = rdata;
+
+	/* i2c_transfer returns number of messages transferred */
+	ret = i2c_transfer(i2c->adapter, xfer, ARRAY_SIZE(xfer));
+	if (ret != ARRAY_SIZE(xfer)) {
+		pr_err("vt1603_i2c_read err[%d]\n", ret);
+		if (ret < 0)
+			return ret;
+		else
+			return -EIO;
+	} else {
+		return 0;
+	}
+}
+
+static void fm34_timing_init(void)
+{
+	// pwdn high to power up fm34 module
+	if (fm34_powerdown.enable) {
+		gpio_set_value_cansleep(fm34_powerdown.gpio, !!fm34_powerdown.active);
+		msleep(100);
+	}
+
+	// reset fm34 module
+	if (fm34_reset.enable) {
+		gpio_set_value_cansleep(fm34_reset.gpio, !!fm34_reset.active);
+		msleep(10);
+		gpio_set_value_cansleep(fm34_reset.gpio, !fm34_reset.active);
+		msleep(10);
+		gpio_set_value_cansleep(fm34_reset.gpio, !!fm34_reset.active);
+		msleep(100);
+	}
+
+	// disable fm34 bypass
+	if (fm34_bypass.enable) {
+		gpio_set_value_cansleep(fm34_bypass.gpio, !!fm34_bypass.active);
+	}
+}
+
+static void fm34_do_work(struct work_struct *work)
+{
+	struct fm34 *fm34 = container_of(work, struct fm34, delaywork.work);
+
+	fm34_timing_init();
+
+	if (fm34_check_functionality(fm34) == 0) {
+		pr_err("fm34_check_functionality: wrong device id\n");
+	}
+	
+	fm34->write_dev(fm34, wmt_fm34_incall_main_mic, sizeof(wmt_fm34_incall_main_mic));
+	//fm_mode = FM34_MODE_ECHO;
+	fm_mic = FM34_INCALL_MIC_MAIN;
+}
+
+static int __devinit fm34_i2c_probe(struct i2c_client *i2c,
+			    const struct i2c_device_id *id)
+{
+	struct fm34 *fm34;
+	int ret;
+
+	if (i2c_check_functionality(i2c->adapter, I2C_FUNC_I2C) == 0) {
+		pr_err("i2c_check_functionality: can't talk I2C?\n");
+		return -EIO;
+	}
+
+	fm34 = kzalloc(sizeof(struct fm34), GFP_KERNEL);
+	if (fm34 == NULL)
+		return -ENOMEM;
+
+	fm34->dev = &i2c->dev;
+	fm34->control_data = i2c;
+	fm34->read_dev = fm34_i2c_read;
+	fm34->write_dev = fm34_i2c_write;
+
+	i2c_set_clientdata(i2c, fm34);
+	dev_set_drvdata(fm34->dev, fm34);
+
+	INIT_DELAYED_WORK(&fm34->delaywork, fm34_do_work);
+
+	if (fm34_powerdown.enable && gpio_is_valid(fm34_powerdown.gpio)) {
+		ret = gpio_request(fm34_powerdown.gpio, "FM34-powerdown");
+		if (ret < 0){
+			dev_warn(fm34->dev, "cann't register fm34_powerdown.gpio-%d\n", fm34_powerdown.gpio);
+			fm34_powerdown.enable = 0;
+		}
+		else
+			gpio_direction_output(fm34_powerdown.gpio, 0);
+	}
+	
+	if (fm34_reset.enable && gpio_is_valid(fm34_reset.gpio)) {
+		ret = gpio_request(fm34_reset.gpio, "FM34-reset");
+		if (ret < 0) {
+			dev_warn(fm34->dev, "cann't register fm34_reset.gpio-%d\n", fm34_reset.gpio);
+			fm34_reset.enable = 0;
+		}
+		else
+			gpio_direction_output(fm34_reset.gpio, 0);
+	}
+
+	if (fm34_bypass.enable && gpio_is_valid(fm34_bypass.gpio)) {
+		ret = gpio_request(fm34_bypass.gpio, "FM34-bypass");
+		if (ret < 0) {
+			dev_warn(fm34->dev, "cann't register fm34_bypass.gpio-%d\n", fm34_bypass.gpio);
+			fm34_bypass.enable = 0;
+		}
+		else
+			gpio_direction_output(fm34_bypass.gpio, 0);
+	}
+
+	fm34_timing_init();
+
+	if (fm34_check_functionality(fm34) == 0) {
+		pr_err("fm34_check_functionality: wrong device id\n");
+		return -EIO;
+	}
+
+	fm34_context = fm34;
+
+	/* write the firmware to device */
+	fm34->write_dev(fm34, wmt_fm34_incall_main_mic, sizeof(wmt_fm34_incall_main_mic));
+	fm_mode = FM34_MODE_ECHO; // default is echo mode
+	fm_mic = FM34_INCALL_MIC_MAIN;
+	return 0;
+}
+
+static int __devexit fm34_i2c_remove(struct i2c_client *i2c)
+{
+	struct fm34 *fm34 = i2c_get_clientdata(i2c);
+
+	if (fm34_powerdown.enable) {
+		gpio_free(fm34_powerdown.gpio);
+	}
+	if (fm34_reset.enable) {
+		gpio_free(fm34_reset.gpio);
+	}
+	if (fm34_bypass.enable) {
+		gpio_free(fm34_bypass.gpio);
+	}
+	
+	kfree(fm34);
+	return 0;
+}
+
+static int fm34_suspend(struct i2c_client *i2c, pm_message_t mesg)
+{
+	struct fm34 *fm34 = i2c_get_clientdata(i2c);
+	cancel_delayed_work_sync(&fm34->delaywork);	
+	return 0;
+}
+static int fm34_resume(struct i2c_client *i2c)
+{
+	struct fm34 *fm34 = i2c_get_clientdata(i2c);
+	schedule_delayed_work(&fm34->delaywork, msecs_to_jiffies(2000));
+	return 0;
+}
+
+static const struct i2c_device_id fm34_i2c_id[] = {
+	{ "wmt-fm34", 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, fm34_i2c_id);
+
+static struct i2c_driver fm34_i2c_driver = {
+	.driver = {
+		.name = "wmt-fm34",
+		.owner = THIS_MODULE,
+	},
+	.probe =    fm34_i2c_probe,
+	.remove =   __devexit_p(fm34_i2c_remove),
+	.suspend = fm34_suspend,
+	.resume = fm34_resume,
+	.id_table = fm34_i2c_id,
+};
+
+static struct i2c_board_info fm34_i2c_board_info = {
+	I2C_BOARD_INFO("wmt-fm34", 0xc0>>1),
+};
+
+static int fm34_ctrl_open (struct inode *inode, struct file *filp)
+{
+	printk("%s %d\n", __func__, __LINE__);
+	return 0;
+}
+
+static int fm34_ctrl_release(struct inode *inode, struct file *filp)
+{
+	printk("%s %d\n", __func__, __LINE__);
+	return 0;
+}
+
+static ssize_t fm34_ctrl_read(struct file *filp, char __user *buf, size_t size, loff_t *offp)
+{
+	printk("%s %d\n", __func__, __LINE__);
+	return size;
+}
+
+static long fm34_ctrl_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+	const u8 echo[]   = { 0xFC, 0xF3, 0x3B, 0x23, 0x00, 0x00, 0x00 };
+	const u8 bypass[] = { 0xFC, 0xF3, 0x3B, 0x23, 0x00, 0x00, 0x01 };
+	//const u8 main_mic[] = { 0xFC, 0xF3, 0x3B, 0x23, 0x0a, 0x1a, 0x00 };
+	//const u8 headset_mic[]  = { 0xFC, 0xF3, 0x3B, 0x23, 0x0a, 0x1b, 0x00 };
+	
+	switch (cmd) {
+	case FM34_CMD_ECHO:
+		if (fm_mode != FM34_MODE_ECHO) {
+			printk("FM34 cmd: echo\n");
+			if (fm34_context->write_dev(fm34_context, echo, sizeof(echo)))
+				return -EIO;
+			fm_mode = FM34_MODE_ECHO;
+		}
+		break;
+		
+	case FM34_CMD_BYPASS:	
+		if (fm_mode != FM34_MODE_BYPASS) {
+			printk("FM34 cmd: bypass\n");
+			if (fm34_context->write_dev(fm34_context, bypass, sizeof(bypass)))
+				return -EIO;
+			fm_mode = FM34_MODE_BYPASS;
+		}
+		break;
+		
+	case FM34_CMD_INCALL_MAIN_MIC:
+		if (fm_mic != FM34_INCALL_MIC_MAIN) {
+			printk("FM34 cmd: incall main-mic\n");
+			if (fm34_reset.enable) {
+				gpio_set_value_cansleep(fm34_reset.gpio, !fm34_reset.active);
+				msleep(20);
+				gpio_set_value_cansleep(fm34_reset.gpio, !!fm34_reset.active);
+				msleep(20);
+			}
+			if (fm34_context->write_dev(fm34_context, wmt_fm34_incall_main_mic, sizeof(wmt_fm34_incall_main_mic)))
+				return -EIO;
+			fm_mic = FM34_INCALL_MIC_MAIN;
+		}
+		break;
+		
+	case FM34_CMD_INCALL_HEADSET_MIC:
+		if (fm_mic != FM34_INCALL_MIC_HEADSET) {
+			printk("FM34 cmd: incall headset-mic\n");
+			if (fm34_reset.enable) {
+				gpio_set_value_cansleep(fm34_reset.gpio, !fm34_reset.active);
+				msleep(20);
+				gpio_set_value_cansleep(fm34_reset.gpio, !!fm34_reset.active);
+				msleep(20);
+			}
+			if (fm34_context->write_dev(fm34_context, wmt_fm34_incall_headset_mic, sizeof(wmt_fm34_incall_headset_mic)))
+				return -EIO;
+			fm_mic = FM34_INCALL_MIC_HEADSET;
+		}
+		break;
+
+	case FM34_CMD_CAPTURE_MAIN_MIC:
+		if (fm_mic != FM34_CMD_CAPTURE_MAIN_MIC) {
+			printk("FM34 cmd: capture main-mic\n");
+			if (fm34_reset.enable) {
+				gpio_set_value_cansleep(fm34_reset.gpio, !fm34_reset.active);
+				msleep(20);
+				gpio_set_value_cansleep(fm34_reset.gpio, !!fm34_reset.active);
+				msleep(20);
+			}
+			if (fm34_context->write_dev(fm34_context, wmt_fm34_capture_main_mic, sizeof(wmt_fm34_capture_main_mic)))
+				return -EIO;
+			fm_mic = FM34_CMD_CAPTURE_MAIN_MIC;
+		}
+		break;
+		
+	case FM34_CMD_CAPTURE_HEADSET_MIC:
+		if (fm_mic != FM34_CMD_CAPTURE_HEADSET_MIC) {
+			printk("FM34 cmd: capture headset-mic\n");
+			if (fm34_reset.enable) {
+				gpio_set_value_cansleep(fm34_reset.gpio, !fm34_reset.active);
+				msleep(20);
+				gpio_set_value_cansleep(fm34_reset.gpio, !!fm34_reset.active);
+				msleep(20);
+			}
+			if (fm34_context->write_dev(fm34_context, wmt_fm34_capture_headset_mic, sizeof(wmt_fm34_capture_headset_mic)))
+				return -EIO;
+			fm_mic = FM34_CMD_CAPTURE_HEADSET_MIC;
+		}
+		break;
+		
+	default:
+		printk(KERN_ERR "FM34: Not support cmd[%d]\n", cmd);
+		break;
+	}
+
+	return 0;
+}
+
+static struct file_operations fm34_ctrl_ops = {
+	.owner   = THIS_MODULE,
+	.open    = fm34_ctrl_open,
+	.release = fm34_ctrl_release,
+	.read    = fm34_ctrl_read,
+	.unlocked_ioctl = fm34_ctrl_ioctl,
+};
+
+static int fm34_ctrl_setup_cdev(struct cdev *dev, int minor, struct file_operations *fops)
+{
+	int ret, devno = MKDEV(fm34_ctrl_major, minor);
+	cdev_init(dev, fops);
+	dev->owner = THIS_MODULE;
+	dev->ops = fops;
+	ret = cdev_add(dev, devno, 1);
+	if (ret)
+		printk(KERN_ERR "Error %d adding wmt_echo %d", ret, minor);
+	return ret;
+}
+
+static int __init fm34_init(void)
+{
+	int ret = -1;
+	int len = 64;
+	char buf[64];
+	dev_t dev;
+	struct i2c_adapter *adapter;
+	struct i2c_client *client;
+	
+	ret = wmt_getsyspara("wmt.echo.cancellation", buf, &len);
+	if (ret == 0) {
+		sscanf(buf, "fm34:[%d:%d:%d]:[%d:%d:%d]:[%d:%d:%d]",
+			&fm34_powerdown.enable, &fm34_powerdown.gpio, &fm34_powerdown.active,
+			&fm34_reset.enable, &fm34_reset.gpio, &fm34_reset.active,
+			&fm34_bypass.enable, &fm34_bypass.gpio, &fm34_bypass.active);
+	}
+	else {
+		fm34_reset.enable = 0;
+		fm34_powerdown.enable = 0;
+		fm34_bypass.enable = 0;
+	}
+
+	ret = alloc_chrdev_region(&dev, 0, 1, FM34_CTRL_NAME);
+	if (ret == 0)
+		fm34_ctrl_major = MAJOR(dev);
+	else
+		printk(KERN_ERR "fm34: alloc_chrdev_region failed!\n");
+
+	ret = fm34_ctrl_setup_cdev(&fm34_ctrl_dev, 0, &fm34_ctrl_ops);
+	if (ret == 0) {
+		fm34_ctrl_class = class_create(THIS_MODULE, FM34_CTRL_NAME);
+		if (IS_ERR(fm34_ctrl_class)) {
+			printk("fm34: class_create failed!\n");
+		}
+		else
+			device_create(fm34_ctrl_class, NULL, MKDEV(fm34_ctrl_major, 0), NULL, FM34_CTRL_NAME);
+	}
+
+	adapter = i2c_get_adapter(FM34_I2C_BUS_NR);
+	client = i2c_new_device(adapter, &fm34_i2c_board_info);
+	i2c_put_adapter(adapter);
+	
+	ret = i2c_add_driver(&fm34_i2c_driver);
+	if (ret != 0)
+		pr_err("Failed to register FM34 I2C driver: %d\n", ret);
+	return ret;
+}
+module_init(fm34_init);
+
+static void __exit fm34_exit(void)
+{	
+	cdev_del(&fm34_ctrl_dev);
+	device_destroy(fm34_ctrl_class, MKDEV(fm34_ctrl_major, 0));
+	class_destroy(fm34_ctrl_class);
+	unregister_chrdev_region(MKDEV(fm34_ctrl_major, 0), 1);
+	
+	i2c_del_driver(&fm34_i2c_driver);
+}
+module_exit(fm34_exit);
+
+MODULE_DESCRIPTION("WMT [ALSA SoC/echocancellation] driver");
+MODULE_AUTHOR("WonderMedia Technologies, Inc.");
+MODULE_LICENSE("GPL");
diff --git a/ANDROID_3.4.5/sound/soc/codecs/wmt_hwdac.c b/ANDROID_3.4.5/sound/soc/codecs/wmt_hwdac.c
new file mode 100755
index 00000000..ae31bb5e
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/codecs/wmt_hwdac.c
@@ -0,0 +1,195 @@
+/*++ 
+ * linux/sound/soc/codecs/wmt_hwdac.c
+ * WonderMedia I2S audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/initval.h>
+
+
+/*
+ * Debug
+ */
+#define AUDIO_NAME "HW_DAC"
+//#define WMT_HWDAC_DEBUG 1
+//#define WMT_HWDAC_DEBUG_DETAIL 1
+
+#ifdef WMT_HWDAC_DEBUG
+#define DPRINTK(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
+#else
+#define DPRINTK(format, arg...) do {} while (0)
+#endif
+
+#ifdef WMT_HWDAC_DEBUG_DETAIL
+#define DBG_DETAIL(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": [%s]" format "\n" , __FUNCTION__, ## arg)
+#else
+#define DBG_DETAIL(format, arg...) do {} while (0)
+#endif
+
+#define err(format, arg...) \
+	printk(KERN_ERR AUDIO_NAME ": " format "\n" , ## arg)
+#define info(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
+#define warn(format, arg...) \
+	printk(KERN_WARNING AUDIO_NAME ": " format "\n" , ## arg)
+
+extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen);
+
+
+static int hwdac_pcm_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	DBG_DETAIL();
+	
+	return 0;
+}
+
+
+#define HWDAC_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
+		SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | \
+		SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | \
+		SNDRV_PCM_RATE_96000)
+
+#define HWDAC_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
+	SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_FLOAT)
+
+static struct snd_soc_dai_ops hwdac_dai_ops = {
+	.hw_params	= hwdac_pcm_hw_params,
+};
+
+struct snd_soc_dai_driver hwdac_dai = {
+	.name = "HWDAC",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = HWDAC_RATES,
+		.formats = HWDAC_FORMATS,
+	},
+	.capture  = {
+		.stream_name  = "Capture",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates        = HWDAC_RATES,
+		.formats      = HWDAC_FORMATS,
+	},
+	.ops = &hwdac_dai_ops,
+};
+
+static int hwdac_probe(struct snd_soc_codec *codec)
+{
+	DBG_DETAIL();
+
+	return 0;
+}
+
+/* remove everything here */
+static int hwdac_remove(struct snd_soc_codec *codec)
+{
+	DBG_DETAIL();
+	
+	return 0;
+}
+
+struct snd_soc_codec_driver soc_codec_dev_hwdac = {
+	.probe = 	hwdac_probe,
+	.remove = 	hwdac_remove,
+};
+
+static int __devinit hwdac_platform_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+
+	DBG_DETAIL();
+
+	ret = snd_soc_register_codec(&pdev->dev,
+			&soc_codec_dev_hwdac, &hwdac_dai, 1);
+	
+	if (ret)
+		info("snd_soc_register_codec fail");
+	
+	return ret;
+}
+
+static int __devexit hwdac_platform_remove(struct platform_device *pdev)
+{
+	DBG_DETAIL();
+
+	snd_soc_unregister_codec(&pdev->dev);
+		
+	return 0;
+}
+
+static struct platform_driver wmt_hwdac_driver = {
+	.driver = {
+			.name = "wmt-i2s-hwdac",
+			.owner = THIS_MODULE,
+	},
+
+	.probe = hwdac_platform_probe,
+	.remove = __devexit_p(hwdac_platform_remove),
+};
+
+static int __init wmt_hwdac_platform_init(void)
+{
+	char buf[80];
+	int varlen = 80;
+	char codec_name[5];
+	int ret = 0;
+
+	DBG_DETAIL();
+
+	/*ret = wmt_getsyspara("wmt.audio.i2s", buf, &varlen);
+	
+	if (ret == 0) {
+		sscanf(buf, "%5s", codec_name);
+
+		if (strcmp(codec_name, "hwdac")) {
+			info("hwdac string not found");
+			return -EINVAL;
+		}
+	}*/
+
+	return platform_driver_register(&wmt_hwdac_driver);
+}
+module_init(wmt_hwdac_platform_init);
+
+static void __exit wmt_hwdac_platform_exit(void)
+{
+	DBG_DETAIL();
+	
+	platform_driver_unregister(&wmt_hwdac_driver);
+}
+module_exit(wmt_hwdac_platform_exit);
+
+MODULE_DESCRIPTION("WMT [ALSA SoC] driver");
+MODULE_AUTHOR("WonderMedia Technologies, Inc.");
+MODULE_LICENSE("GPL");
diff --git a/ANDROID_3.4.5/sound/soc/codecs/wmt_vt1602.c b/ANDROID_3.4.5/sound/soc/codecs/wmt_vt1602.c
new file mode 100755
index 00000000..fd625c95
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/codecs/wmt_vt1602.c
@@ -0,0 +1,981 @@
+/*++ 
+ * linux/sound/soc/codecs/wmt_vt1602.c
+ * WonderMedia I2S audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+
+#include "wmt_vt1602.h"
+
+#define VT1602_VERSION "0.20"
+#define I2C_DRIVERID_VT1602     90
+
+/*
+ * Debug
+ */
+#define AUDIO_NAME "VT1602"
+//#define WMT_VT1602_DEBUG 1
+//#define WMT_VT1602_DEBUG_DETAIL 1
+
+#ifdef WMT_VT1602_DEBUG
+#define DPRINTK(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
+#else
+#define DPRINTK(format, arg...) do {} while (0)
+#endif
+
+#ifdef WMT_VT1602_DEBUG_DETAIL
+#define DBG_DETAIL(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": [%s]" format "\n" , __FUNCTION__, ## arg)
+#else
+#define DBG_DETAIL(format, arg...) do {} while (0)
+#endif
+
+#define err(format, arg...) \
+	printk(KERN_ERR AUDIO_NAME ": " format "\n" , ## arg)
+#define info(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
+#define warn(format, arg...) \
+	printk(KERN_WARNING AUDIO_NAME ": " format "\n" , ## arg)
+
+/* codec private data */
+struct vt1602_priv {
+	unsigned int sysclk;
+	enum snd_soc_control_type control_type;
+	struct snd_pcm_substream *master_substream;
+	struct snd_pcm_substream *slave_substream;
+};
+
+/*
+ * vt1602 register cache
+ * We can't read the VT1602 register space when we
+ * are using 2 wire for device control, so we cache them instead.
+ */
+static const u16 vt1602_reg[] = {
+	0x0050, 0x0050, 0x007f, 0x007f,  /*  0 */
+	0x0000, 0x0008, 0x0000, 0x000a,  /*  4 */
+	0x0000, 0x0000, 0x00fc, 0x00fc,  /*  8 */
+	0x000f, 0x000f, 0x0000, 0x0000,  /* 12 */
+	0x0000, 0x007b, 0x0000, 0x0032,  /* 16 */
+	0x0000, 0x00c3, 0x00c3, 0x00c0,  /* 20 */
+	0x0000, 0x0000, 0x0000, 0x0000,  /* 24 */
+	0x0000, 0x0000, 0x0000, 0x0000,  /* 28 */
+	0x0000, 0x0000, 0x0100, 0x0000,  /* 32 */
+	0x0000, 0x0100, 0x0050, 0x0050,  /* 36 */
+	0x0079, 0x0079, 0x0079,          /* 40 */
+};
+
+extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen);
+
+#define vt1602_reset(c)	snd_soc_write(c, VT1602_RESET, 0)
+
+/*
+ * VT1602 Controls
+ */
+static const char *vt1602_bass[] = {"Linear Control", "Adaptive Boost"};
+static const char *vt1602_bass_filter[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" };
+static const char *vt1602_treble[] = {"8kHz", "4kHz"};
+static const char *vt1602_3d_lc[] = {"200Hz", "500Hz"};
+static const char *vt1602_3d_uc[] = {"2.2kHz", "1.5kHz"};
+static const char *vt1602_3d_func[] = {"Capture", "Playback"};
+static const char *vt1602_alc_func[] = {"Off", "Right", "Left", "Stereo"};
+static const char *vt1602_ng_type[] = {"Constant PGA Gain",
+	"Mute ADC Output"};
+static const char *vt1602_line_mux[] = {"Line 1", "Line 2", "Line 3", "PGA",
+	"Differential"};
+static const char *vt1602_pga_sel[] = {"Line 1", "Line 2", "Line 3",
+	"Differential"};
+static const char *vt1602_out3[] = {"VREF", "ROUT1 + Vol", "MonoOut",
+	"ROUT1"};
+static const char *vt1602_diff_sel[] = {"Line 1", "Line 2"};
+static const char *vt1602_adcpol[] = {"Normal", "L Invert", "R Invert",
+	"L + R Invert"};
+static const char *vt1602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
+static const char *vt1602_mono_mux[] = {"Stereo", "Mono (Left)",
+	"Mono (Right)", "Digital Mono"};
+
+static const struct soc_enum vt1602_enum[] = {
+SOC_ENUM_SINGLE(VT1602_BASS, 7, 2, vt1602_bass),
+SOC_ENUM_SINGLE(VT1602_BASS, 6, 2, vt1602_bass_filter),
+SOC_ENUM_SINGLE(VT1602_TREBLE, 6, 2, vt1602_treble),
+SOC_ENUM_SINGLE(VT1602_3D, 5, 2, vt1602_3d_lc),
+SOC_ENUM_SINGLE(VT1602_3D, 6, 2, vt1602_3d_uc),
+SOC_ENUM_SINGLE(VT1602_3D, 7, 2, vt1602_3d_func),
+SOC_ENUM_SINGLE(VT1602_ALC1, 7, 4, vt1602_alc_func),
+SOC_ENUM_SINGLE(VT1602_NGATE, 1, 2, vt1602_ng_type),
+SOC_ENUM_SINGLE(VT1602_LOUTM1, 0, 5, vt1602_line_mux),
+SOC_ENUM_SINGLE(VT1602_ROUTM1, 0, 5, vt1602_line_mux),
+SOC_ENUM_SINGLE(VT1602_LADCIN, 6, 4, vt1602_pga_sel), /* 10 */
+SOC_ENUM_SINGLE(VT1602_RADCIN, 6, 4, vt1602_pga_sel),
+SOC_ENUM_SINGLE(VT1602_ADCTL2, 7, 4, vt1602_out3),
+SOC_ENUM_SINGLE(VT1602_ADCIN, 8, 2, vt1602_diff_sel),
+SOC_ENUM_SINGLE(VT1602_ADCDAC, 5, 4, vt1602_adcpol),
+SOC_ENUM_SINGLE(VT1602_ADCDAC, 1, 4, vt1602_deemph),
+SOC_ENUM_SINGLE(VT1602_ADCIN, 6, 4, vt1602_mono_mux), /* 16 */
+
+};
+
+static const struct snd_kcontrol_new vt1602_snd_controls[] = {
+
+SOC_DOUBLE_R("Capture Volume", VT1602_LINVOL, VT1602_RINVOL, 0, 63, 0),
+SOC_DOUBLE_R("Capture ZC Switch", VT1602_LINVOL, VT1602_RINVOL, 6, 1, 0),
+SOC_DOUBLE_R("Capture Switch", VT1602_LINVOL, VT1602_RINVOL, 7, 1, 1),
+
+SOC_DOUBLE_R("Headphone Playback ZC Switch", VT1602_LOUT1V,
+	VT1602_ROUT1V, 7, 1, 0),
+SOC_DOUBLE_R("Speaker Playback ZC Switch", VT1602_LOUT2V,
+	VT1602_ROUT2V, 7, 1, 0),
+
+SOC_ENUM("Playback De-emphasis", vt1602_enum[15]),
+
+SOC_ENUM("Capture Polarity", vt1602_enum[14]),
+SOC_SINGLE("Playback 6dB Attenuate", VT1602_ADCDAC, 7, 1, 0),
+SOC_SINGLE("Capture 6dB Attenuate", VT1602_ADCDAC, 8, 1, 0),
+
+SOC_DOUBLE_R("Master Volume", VT1602_LOUT1V, VT1602_ROUT1V, 0, 127, 0),
+//SOC_DOUBLE_R("PCM Volume", VT1602_LOUT1V, VT1602_ROUT1V, 0, 127, 0),
+
+/*
+SOC_ENUM("Bass Boost", vt1602_enum[0]),
+SOC_ENUM("Bass Filter", vt1602_enum[1]),
+SOC_SINGLE("Bass Volume", VT1602_BASS, 0, 15, 1),
+
+SOC_SINGLE("Treble Volume", VT1602_TREBLE, 0, 15, 0),
+SOC_ENUM("Treble Cut-off", vt1602_enum[2]),
+
+SOC_SINGLE("3D Switch", VT1602_3D, 0, 1, 0),
+SOC_SINGLE("3D Volume", VT1602_3D, 1, 15, 0),
+SOC_ENUM("3D Lower Cut-off", vt1602_enum[3]),
+SOC_ENUM("3D Upper Cut-off", vt1602_enum[4]),
+SOC_ENUM("3D Mode", vt1602_enum[5]),
+
+SOC_SINGLE("ALC Capture Target Volume", VT1602_ALC1, 0, 7, 0),
+SOC_SINGLE("ALC Capture Max Volume", VT1602_ALC1, 4, 7, 0),
+SOC_ENUM("ALC Capture Function", vt1602_enum[6]),
+SOC_SINGLE("ALC Capture ZC Switch", VT1602_ALC2, 7, 1, 0),
+SOC_SINGLE("ALC Capture Hold Time", VT1602_ALC2, 0, 15, 0),
+SOC_SINGLE("ALC Capture Decay Time", VT1602_ALC3, 4, 15, 0),
+SOC_SINGLE("ALC Capture Attack Time", VT1602_ALC3, 0, 15, 0),
+SOC_SINGLE("ALC Capture NG Threshold", VT1602_NGATE, 3, 31, 0),
+SOC_ENUM("ALC Capture NG Type", vt1602_enum[4]),
+SOC_SINGLE("ALC Capture NG Switch", VT1602_NGATE, 0, 1, 0),
+*/
+
+SOC_SINGLE("Left ADC Capture Volume", VT1602_LADC, 0, 255, 0),
+SOC_SINGLE("Right ADC Capture Volume", VT1602_RADC, 0, 255, 0),
+
+SOC_SINGLE("ZC Timeout Switch", VT1602_ADCTL1, 0, 1, 0),
+SOC_SINGLE("Playback Invert Switch", VT1602_ADCTL1, 1, 1, 0),
+
+SOC_SINGLE("Right Speaker Playback Invert Switch", VT1602_ADCTL2, 4, 1, 0),
+
+/* Unimplemented */
+/* ADCDAC Bit 0 - ADCHPD */
+/* ADCDAC Bit 4 - HPOR */
+/* ADCTL1 Bit 2,3 - DATSEL */
+/* ADCTL1 Bit 4,5 - DMONOMIX */
+/* ADCTL1 Bit 6,7 - VSEL */
+/* ADCTL2 Bit 2 - LRCM */
+/* ADCTL2 Bit 3 - TRI */
+/* ADCTL3 Bit 5 - HPFLREN */
+/* ADCTL3 Bit 6 - VROI */
+/* ADCTL3 Bit 7,8 - ADCLRM */
+/* ADCIN Bit 4 - LDCM */
+/* ADCIN Bit 5 - RDCM */
+
+SOC_DOUBLE_R("Mic Boost", VT1602_LADCIN, VT1602_RADCIN, 4, 3, 0),
+
+SOC_DOUBLE_R("Bypass Left Playback Volume", VT1602_LOUTM1,
+	VT1602_LOUTM2, 4, 7, 1),
+SOC_DOUBLE_R("Bypass Right Playback Volume", VT1602_ROUTM1,
+	VT1602_ROUTM2, 4, 7, 1),
+SOC_DOUBLE_R("Bypass Mono Playback Volume", VT1602_MOUTM1,
+	VT1602_MOUTM2, 4, 7, 1),
+
+SOC_SINGLE("Mono Playback ZC Switch", VT1602_MOUTV, 7, 1, 0),
+
+SOC_DOUBLE_R("Headphone Playback Volume", VT1602_LOUT1V, VT1602_ROUT1V,
+	0, 127, 0),
+SOC_DOUBLE_R("Speaker Playback Volume", VT1602_LOUT2V, VT1602_ROUT2V,
+	0, 127, 0),
+
+SOC_SINGLE("Mono Playback Volume", VT1602_MOUTV, 0, 127, 0),
+
+};
+
+/*
+ * DAPM Controls
+ */
+
+/* Left Mixer */
+static const struct snd_kcontrol_new vt1602_left_mixer_controls[] = {
+SOC_DAPM_SINGLE("Playback Switch", VT1602_LOUTM1, 8, 1, 0),
+SOC_DAPM_SINGLE("Left Bypass Switch", VT1602_LOUTM1, 7, 1, 0),
+SOC_DAPM_SINGLE("Right Playback Switch", VT1602_LOUTM2, 8, 1, 0),
+SOC_DAPM_SINGLE("Right Bypass Switch", VT1602_LOUTM2, 7, 1, 0),
+};
+
+/* Right Mixer */
+static const struct snd_kcontrol_new vt1602_right_mixer_controls[] = {
+SOC_DAPM_SINGLE("Left Playback Switch", VT1602_ROUTM1, 8, 1, 0),
+SOC_DAPM_SINGLE("Left Bypass Switch", VT1602_ROUTM1, 7, 1, 0),
+SOC_DAPM_SINGLE("Playback Switch", VT1602_ROUTM2, 8, 1, 0),
+SOC_DAPM_SINGLE("Right Bypass Switch", VT1602_ROUTM2, 7, 1, 0),
+};
+
+/* Mono Mixer */
+static const struct snd_kcontrol_new vt1602_mono_mixer_controls[] = {
+SOC_DAPM_SINGLE("Left Playback Switch", VT1602_MOUTM1, 8, 1, 0),
+SOC_DAPM_SINGLE("Left Bypass Switch", VT1602_MOUTM1, 7, 1, 0),
+SOC_DAPM_SINGLE("Right Playback Switch", VT1602_MOUTM2, 8, 1, 0),
+SOC_DAPM_SINGLE("Right Bypass Switch", VT1602_MOUTM2, 7, 1, 0),
+};
+
+/* Left Line Mux */
+static const struct snd_kcontrol_new vt1602_left_line_controls =
+SOC_DAPM_ENUM("Route", vt1602_enum[8]);
+
+/* Right Line Mux */
+static const struct snd_kcontrol_new vt1602_right_line_controls =
+SOC_DAPM_ENUM("Route", vt1602_enum[9]);
+
+/* Left PGA Mux */
+static const struct snd_kcontrol_new vt1602_left_pga_controls =
+SOC_DAPM_ENUM("Route", vt1602_enum[10]);
+
+/* Right PGA Mux */
+static const struct snd_kcontrol_new vt1602_right_pga_controls =
+SOC_DAPM_ENUM("Route", vt1602_enum[11]);
+
+/* Out 3 Mux */
+static const struct snd_kcontrol_new vt1602_out3_controls =
+SOC_DAPM_ENUM("Route", vt1602_enum[12]);
+
+/* Differential Mux */
+static const struct snd_kcontrol_new vt1602_diffmux_controls =
+SOC_DAPM_ENUM("Route", vt1602_enum[13]);
+
+/* Mono ADC Mux */
+static const struct snd_kcontrol_new vt1602_monomux_controls =
+SOC_DAPM_ENUM("Route", vt1602_enum[16]);
+
+static const struct snd_soc_dapm_widget vt1602_dapm_widgets[] = {
+	SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
+		&vt1602_left_mixer_controls[0],
+		ARRAY_SIZE(vt1602_left_mixer_controls)),
+	SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
+		&vt1602_right_mixer_controls[0],
+		ARRAY_SIZE(vt1602_right_mixer_controls)),
+	/*
+	SND_SOC_DAPM_MIXER("Mono Mixer", VT1602_PWR2, 2, 0,
+		&vt1602_mono_mixer_controls[0],
+		ARRAY_SIZE(vt1602_mono_mixer_controls)),
+
+	SND_SOC_DAPM_PGA("Right Out 2", VT1602_PWR2, 3, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("Left Out 2", VT1602_PWR2, 4, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("Right Out 1", VT1602_PWR2, 5, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("Left Out 1", VT1602_PWR2, 6, 0, NULL, 0),
+	SND_SOC_DAPM_DAC("Right DAC", "Right Playback", VT1602_PWR2, 7, 0),
+	SND_SOC_DAPM_DAC("Left DAC", "Left Playback", VT1602_PWR2, 8, 0),
+	*/
+	/*
+	SND_SOC_DAPM_MICBIAS("Mic Bias", VT1602_PWR1, 1, 0),
+	SND_SOC_DAPM_ADC("Right ADC", "Right Capture", VT1602_PWR1, 2, 0),
+	SND_SOC_DAPM_ADC("Left ADC", "Left Capture", VT1602_PWR1, 3, 0),
+
+	SND_SOC_DAPM_MUX("Left PGA Mux", VT1602_PWR1, 5, 0,
+		&vt1602_left_pga_controls),
+	SND_SOC_DAPM_MUX("Right PGA Mux", VT1602_PWR1, 4, 0,
+		&vt1602_right_pga_controls),
+	*/
+	SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0,
+		&vt1602_left_line_controls),
+	SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0,
+		&vt1602_right_line_controls),
+
+	SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &vt1602_out3_controls),
+	/*
+	SND_SOC_DAPM_PGA("Out 3", VT1602_PWR2, 1, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("Mono Out 1", VT1602_PWR2, 2, 0, NULL, 0),
+	*/
+
+	SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
+		&vt1602_diffmux_controls),
+	SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0,
+		&vt1602_monomux_controls),
+	SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0,
+		&vt1602_monomux_controls),
+
+	SND_SOC_DAPM_OUTPUT("LOUT1"),
+	SND_SOC_DAPM_OUTPUT("ROUT1"),
+	SND_SOC_DAPM_OUTPUT("LOUT2"),
+	SND_SOC_DAPM_OUTPUT("ROUT2"),
+	SND_SOC_DAPM_OUTPUT("MONO1"),
+	SND_SOC_DAPM_OUTPUT("OUT3"),
+	SND_SOC_DAPM_OUTPUT("VREF"),
+
+	SND_SOC_DAPM_INPUT("LINPUT1"),
+	SND_SOC_DAPM_INPUT("LINPUT2"),
+	SND_SOC_DAPM_INPUT("LINPUT3"),
+	SND_SOC_DAPM_INPUT("RINPUT1"),
+	SND_SOC_DAPM_INPUT("RINPUT2"),
+	SND_SOC_DAPM_INPUT("RINPUT3"),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+	/* left mixer */
+	{"Left Mixer", "Playback Switch", "Left DAC"},
+	{"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
+	{"Left Mixer", "Right Playback Switch", "Right DAC"},
+	{"Left Mixer", "Right Bypass Switch", "Right Line Mux"},
+
+	/* right mixer */
+	{"Right Mixer", "Left Playback Switch", "Left DAC"},
+	{"Right Mixer", "Left Bypass Switch", "Left Line Mux"},
+	{"Right Mixer", "Playback Switch", "Right DAC"},
+	{"Right Mixer", "Right Bypass Switch", "Right Line Mux"},
+
+	/* left out 1 */
+	{"Left Out 1", NULL, "Left Mixer"},
+	{"LOUT1", NULL, "Left Out 1"},
+
+	/* left out 2 */
+	{"Left Out 2", NULL, "Left Mixer"},
+	{"LOUT2", NULL, "Left Out 2"},
+
+	/* right out 1 */
+	{"Right Out 1", NULL, "Right Mixer"},
+	{"ROUT1", NULL, "Right Out 1"},
+
+	/* right out 2 */
+	{"Right Out 2", NULL, "Right Mixer"},
+	{"ROUT2", NULL, "Right Out 2"},
+
+	/* mono mixer */
+	{"Mono Mixer", "Left Playback Switch", "Left DAC"},
+	{"Mono Mixer", "Left Bypass Switch", "Left Line Mux"},
+	{"Mono Mixer", "Right Playback Switch", "Right DAC"},
+	{"Mono Mixer", "Right Bypass Switch", "Right Line Mux"},
+
+	/* mono out */
+	{"Mono Out 1", NULL, "Mono Mixer"},
+	{"MONO1", NULL, "Mono Out 1"},
+
+	/* out 3 */
+	{"Out3 Mux", "VREF", "VREF"},
+	{"Out3 Mux", "ROUT1 + Vol", "ROUT1"},
+	{"Out3 Mux", "ROUT1", "Right Mixer"},
+	{"Out3 Mux", "MonoOut", "MONO1"},
+	{"Out 3", NULL, "Out3 Mux"},
+	{"OUT3", NULL, "Out 3"},
+
+	/* Left Line Mux */
+	{"Left Line Mux", "Line 1", "LINPUT1"},
+	{"Left Line Mux", "Line 2", "LINPUT2"},
+	{"Left Line Mux", "Line 3", "LINPUT3"},
+	{"Left Line Mux", "PGA", "Left PGA Mux"},
+	{"Left Line Mux", "Differential", "Differential Mux"},
+
+	/* Right Line Mux */
+	{"Right Line Mux", "Line 1", "RINPUT1"},
+	{"Right Line Mux", "Line 2", "RINPUT2"},
+	{"Right Line Mux", "Line 3", "RINPUT3"},
+	{"Right Line Mux", "PGA", "Right PGA Mux"},
+	{"Right Line Mux", "Differential", "Differential Mux"},
+
+	/* Left PGA Mux */
+	{"Left PGA Mux", "Line 1", "LINPUT1"},
+	{"Left PGA Mux", "Line 2", "LINPUT2"},
+	{"Left PGA Mux", "Line 3", "LINPUT3"},
+	{"Left PGA Mux", "Differential", "Differential Mux"},
+
+	/* Right PGA Mux */
+	{"Right PGA Mux", "Line 1", "RINPUT1"},
+	{"Right PGA Mux", "Line 2", "RINPUT2"},
+	{"Right PGA Mux", "Line 3", "RINPUT3"},
+	{"Right PGA Mux", "Differential", "Differential Mux"},
+
+	/* Differential Mux */
+	{"Differential Mux", "Line 1", "LINPUT1"},
+	{"Differential Mux", "Line 1", "RINPUT1"},
+	{"Differential Mux", "Line 2", "LINPUT2"},
+	{"Differential Mux", "Line 2", "RINPUT2"},
+
+	/* Left ADC Mux */
+	{"Left ADC Mux", "Stereo", "Left PGA Mux"},
+	{"Left ADC Mux", "Mono (Left)", "Left PGA Mux"},
+	{"Left ADC Mux", "Digital Mono", "Left PGA Mux"},
+
+	/* Right ADC Mux */
+	{"Right ADC Mux", "Stereo", "Right PGA Mux"},
+	{"Right ADC Mux", "Mono (Right)", "Right PGA Mux"},
+	{"Right ADC Mux", "Digital Mono", "Right PGA Mux"},
+
+	/* ADC */
+	{"Left ADC", NULL, "Left ADC Mux"},
+	{"Right ADC", NULL, "Right ADC Mux"},
+};
+
+struct _coeff_div {
+	u32 mclk;
+	u32 rate;
+	u16 fs;
+	u8 sr:5;
+	u8 usb:1;
+};
+
+/* codec hifi mclk clock divider coefficients */
+static const struct _coeff_div coeff_div[] = {
+	/* 8k */
+	{12288000, 8000, 1536, 0x6, 0x0},
+
+	/* 11.025k */
+	{11289600, 11025, 1024, 0x18, 0x0},
+
+	/* 16k */
+	{12288000, 16000, 768, 0xa, 0x0},
+
+	/* 22.05k */
+	{11289600, 22050, 512, 0x1a, 0x0},
+
+	/* 32k */
+	{12288000, 32000, 384, 0xc, 0x0},
+
+	/* 44.1k */
+	{11289600, 44100, 256, 0x10, 0x0},
+
+	/* 48k */
+	{12288000, 48000, 256, 0x0, 0x0},
+
+	/* 88.2k */
+	{11289600, 88200, 128, 0x1e, 0x0},
+
+	/* 96k */
+	{12288000, 96000, 128, 0xe, 0x0},
+};
+
+static inline int get_coeff(int mclk, int rate)
+{
+	int i;
+
+	DBG_DETAIL("mclk=%d, rate=%d", mclk, rate);
+	
+	for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
+		if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
+			return i;
+	}
+
+	printk(KERN_ERR "vt1602: could not get coeff for mclk %d @ rate %d\n",
+		mclk, rate);
+	return -EINVAL;
+}
+
+static int vt1602_pcm_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_codec *codec = rtd->codec;
+	u16 iface = snd_soc_read(codec, VT1602_IFACE) & 0x1f3;
+	//int coeff = get_coeff(vt1602->sysclk, params_rate(params));
+
+	DBG_DETAIL();
+	
+	/* bit size */
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		break;
+	case SNDRV_PCM_FORMAT_S20_3LE:
+		iface |= 0x0004;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		iface |= 0x0008;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		iface |= 0x000c;
+		break;
+	}
+
+	/* set iface & srate */
+	snd_soc_write(codec, VT1602_IFACE, iface);
+	
+	return 0;
+}
+
+static int vt1602_mute(struct snd_soc_dai *dai, int mute)
+{
+	struct snd_soc_codec *codec = dai->codec;
+	u16 mute_reg = snd_soc_read(codec, VT1602_ADCDAC) & 0xfff7;
+
+	DBG_DETAIL();
+	
+	if (mute)
+		snd_soc_write(codec, VT1602_ADCDAC, mute_reg | 0x8);
+	else
+		snd_soc_write(codec, VT1602_ADCDAC, mute_reg);
+	return 0;
+}
+
+static int vt1602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+		int clk_id, unsigned int freq, int dir)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	struct vt1602_priv *vt1602 = snd_soc_codec_get_drvdata(codec);
+
+	DBG_DETAIL();
+	
+	switch (freq) {
+	case 11289600:
+	case 12000000:
+	case 12288000:
+	case 16934400:
+	case 18432000:
+		vt1602->sysclk = freq;
+		return 0;
+	}
+	return -EINVAL;
+}
+
+static int vt1602_set_dai_fmt(struct snd_soc_dai *codec_dai,
+		unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	u16 iface = 0;
+
+	DBG_DETAIL();
+	
+	/* set master/slave audio interface */
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM:
+		iface = 0x0040;
+		break;
+	case SND_SOC_DAIFMT_CBS_CFS:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* interface format */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		iface |= 0x0002;
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		iface |= 0x0001;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		iface |= 0x0003;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		iface |= 0x0013;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* clock inversion */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		iface |= 0x0090;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		iface |= 0x0080;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		iface |= 0x0010;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	snd_soc_write(codec, VT1602_IFACE, iface);
+	return 0;
+}
+
+static int vt1602_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level )
+{
+	DBG_DETAIL();
+	
+	switch (level) {
+	case SND_SOC_BIAS_ON:
+		/* set vmid to 50k and unmute dac */
+		break;
+	case SND_SOC_BIAS_PREPARE:
+		/* set vmid to 5k for quick power up */
+		break;
+	case SND_SOC_BIAS_STANDBY:
+		/* mute dac and set vmid to 500k, enable VREF */
+		break;
+	case SND_SOC_BIAS_OFF:
+		break;
+	}
+	codec->dapm.bias_level = level;
+	return 0;
+}
+
+static void vt1602_work(struct work_struct *work)
+{
+	struct snd_soc_codec *codec =
+		container_of(work, struct snd_soc_codec, dapm.delayed_work.work);
+
+	DBG_DETAIL();
+	
+	vt1602_set_bias_level(codec, codec->dapm.bias_level);
+}
+
+#define VT1602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
+		SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | \
+		SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | \
+		SNDRV_PCM_RATE_96000)
+
+#define VT1602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
+	SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_FLOAT)
+
+static const struct snd_soc_dai_ops vt1602_dai_ops = {
+	.hw_params	= vt1602_pcm_hw_params,
+	.digital_mute	= vt1602_mute,
+	.set_sysclk	= vt1602_set_dai_sysclk,
+	.set_fmt	= vt1602_set_dai_fmt,
+};
+
+struct snd_soc_dai_driver vt1602_dai = {
+	.name = "VT1602",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = VT1602_RATES,
+		.formats = VT1602_FORMATS,},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = VT1602_RATES,
+		.formats = VT1602_FORMATS,},
+	.ops = &vt1602_dai_ops,
+};
+
+static int vt1602_suspend(struct snd_soc_codec *codec)
+{
+	DBG_DETAIL();
+	
+	vt1602_set_bias_level(codec, SND_SOC_BIAS_OFF);
+	return 0;
+}
+
+static int vt1602_resume(struct snd_soc_codec *codec)
+{
+	DBG_DETAIL();
+	
+	snd_soc_cache_sync(codec);
+	vt1602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+	/* charge vt1602 caps */
+	if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
+		vt1602_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
+		codec->dapm.bias_level = SND_SOC_BIAS_ON;
+		schedule_delayed_work(&codec->dapm.delayed_work,
+					msecs_to_jiffies(1000));
+	}
+
+	return 0;
+}
+
+static int wmt_vt1602_init(struct snd_soc_codec *codec)
+{
+	struct snd_soc_dapm_context *dapm = &codec->dapm;
+	int ret, reg;
+
+	DBG_DETAIL();
+
+	/* charge output caps */
+	vt1602_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
+	codec->dapm.bias_level = SND_SOC_BIAS_STANDBY;
+	schedule_delayed_work(&codec->dapm.delayed_work, msecs_to_jiffies(1000));
+
+	/* set the update bits */
+	reg = snd_soc_read(codec, VT1602_LDAC);
+	snd_soc_write(codec, VT1602_LDAC, reg | 0x0100);
+	reg = snd_soc_read(codec, VT1602_RDAC);
+	snd_soc_write(codec, VT1602_RDAC, reg | 0x0100);
+	reg = snd_soc_read(codec, VT1602_LOUT1V);
+	snd_soc_write(codec, VT1602_LOUT1V, reg | 0x0100);
+	reg = snd_soc_read(codec, VT1602_ROUT1V);
+	snd_soc_write(codec, VT1602_ROUT1V, reg | 0x0100);
+	reg = snd_soc_read(codec, VT1602_LOUT2V);
+	snd_soc_write(codec, VT1602_LOUT2V, reg | 0x0100);
+	reg = snd_soc_read(codec, VT1602_ROUT2V);
+	snd_soc_write(codec, VT1602_ROUT2V, reg | 0x0100);
+	reg = snd_soc_read(codec, VT1602_LINVOL);
+	snd_soc_write(codec, VT1602_LINVOL, reg | 0x0100);
+	reg = snd_soc_read(codec, VT1602_RINVOL);
+	snd_soc_write(codec, VT1602_RINVOL, reg | 0x0100);
+	reg = snd_soc_read(codec, VT1602_LOUTM1);
+	snd_soc_write(codec, VT1602_LOUTM1, reg);
+	reg = snd_soc_read(codec, VT1602_LOUTM2);
+	snd_soc_write(codec, VT1602_LOUTM2, reg);
+	reg = snd_soc_read(codec, VT1602_ROUTM1);
+	snd_soc_write(codec, VT1602_ROUTM1, reg);
+	reg = snd_soc_read(codec, VT1602_ROUTM2);
+	snd_soc_write(codec, VT1602_ROUTM2, reg);
+	snd_soc_write(codec, VT1602_PWR1,  0x1FE);
+	snd_soc_write(codec, VT1602_PWR2, 0x1E0);
+	snd_soc_write(codec, VT1602_LADCIN,  0x020);
+	snd_soc_write(codec, VT1602_RADCIN, 0x020);
+	snd_soc_write(codec, VT1602_ADCTL3, 0x040);
+
+	ret = snd_soc_add_codec_controls(codec, vt1602_snd_controls,
+			ARRAY_SIZE(vt1602_snd_controls));
+	if (ret) {
+		info("snd_soc_add_codec_controls fail");
+		return ret;
+	}
+
+	ret = snd_soc_dapm_new_controls(dapm, vt1602_dapm_widgets,
+			ARRAY_SIZE(vt1602_dapm_widgets));
+	if (ret) {
+		info("snd_soc_dapm_new_controls fail");
+		return ret;
+	}
+
+	ret = snd_soc_dapm_add_routes(dapm, audio_map,
+			ARRAY_SIZE(audio_map));
+	if (ret) {
+		info("snd_soc_dapm_add_routes fail");
+		return 0;
+	}
+
+	return ret;
+}
+
+static int vt1602_probe(struct snd_soc_codec *codec)
+{
+	struct vt1602_priv *vt1602 = snd_soc_codec_get_drvdata(codec);
+	int ret;
+	
+	pr_info("VT1602 Audio Codec %s\n", VT1602_VERSION);
+
+	ret = snd_soc_codec_set_cache_io(codec, 7, 9, vt1602->control_type);
+	if (ret < 0) {
+		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+		return ret;
+	}
+
+	ret = vt1602_reset(codec);
+	if (ret < 0) {
+		dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
+		return ret;
+	}
+
+	INIT_DELAYED_WORK(&codec->dapm.delayed_work, vt1602_work);
+
+	ret = wmt_vt1602_init(codec);
+	if (ret)
+		info("vt1602_probe fail");
+	return ret;
+}
+
+/*
+ * This function forces any delayed work to be queued and run.
+ */
+static int run_delayed_work(struct delayed_work *dwork)
+{
+	int ret;
+
+	DBG_DETAIL();
+	
+	/* cancel any work waiting to be queued. */
+	ret = cancel_delayed_work(dwork);
+
+	/* if there was any work waiting then we run it now and
+	 * wait for it's completion */
+	if (ret) {
+		schedule_delayed_work(dwork, 0);
+		flush_scheduled_work();
+	}
+	return ret;
+}
+
+/* remove everything here */
+static int vt1602_remove(struct snd_soc_codec *codec)
+{
+	DBG_DETAIL();
+	
+	vt1602_set_bias_level(codec, SND_SOC_BIAS_OFF);
+	run_delayed_work(&codec->dapm.delayed_work);
+
+	return 0;
+}
+
+static struct snd_soc_codec_driver soc_codec_dev_vt1602 = {
+	.probe = 	vt1602_probe,
+	.remove = 	vt1602_remove,
+	.suspend = 	vt1602_suspend,
+	.resume =	vt1602_resume,
+	.set_bias_level = vt1602_set_bias_level,
+	.reg_cache_size = ARRAY_SIZE(vt1602_reg),
+	.reg_word_size = sizeof(u16),
+	.reg_cache_default = vt1602_reg,
+
+	/*.controls = vt1602_snd_controls,
+	.num_controls = ARRAY_SIZE(vt1602_snd_controls),
+	.dapm_widgets = vt1602_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(vt1602_dapm_widgets),
+	.dapm_routes = audio_map,
+	.num_dapm_routes = ARRAY_SIZE(audio_map),*/
+};
+
+#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
+static int __devinit vt1602_i2c_probe(struct i2c_client *i2c,
+			    const struct i2c_device_id *id)
+{
+	struct vt1602_priv *vt1602;
+	int ret;
+
+	DBG_DETAIL();
+
+	vt1602 = devm_kzalloc(&i2c->dev, sizeof(struct vt1602_priv), GFP_KERNEL);
+	if (vt1602 == NULL) {
+		info("vt1602_i2c_probe kzalloc fail");
+		return -ENOMEM;
+	}
+	
+	i2c_set_clientdata(i2c, vt1602);
+	vt1602->control_type = SND_SOC_I2C;
+
+	ret = snd_soc_register_codec(&i2c->dev,
+			&soc_codec_dev_vt1602, &vt1602_dai, 1);
+	
+	return ret;
+}
+
+static int __devexit vt1602_i2c_remove(struct i2c_client *client)
+{
+	DBG_DETAIL();
+	
+	snd_soc_unregister_codec(&client->dev);
+
+	return 0;
+}
+
+static const struct i2c_device_id vt1602_i2c_id[] = {
+	{ "vt1602", 1},
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, vt1602_i2c_id);
+
+/* corgi i2c codec control layer */
+static struct i2c_driver vt1602_i2c_driver = {
+	.driver = {
+		.name = "vt1602",
+		.owner = THIS_MODULE,
+	},
+	.probe =    vt1602_i2c_probe,
+	.remove =   __devexit_p(vt1602_i2c_remove),
+	.id_table = vt1602_i2c_id,
+};
+#endif
+
+static struct i2c_board_info __initdata wmt_vt1602_board_info[] = {
+	{
+			I2C_BOARD_INFO("vt1602", 0x1a),
+	},
+};		
+
+static int __init vt1602_modinit(void)
+{
+	char buf[80];
+	int varlen = 80;
+	int ret = 0;
+	char codec_name[6];
+	struct i2c_adapter *adapter = NULL;
+
+	DBG_DETAIL();
+	
+	ret = wmt_getsyspara("wmt.audio.i2s", buf, &varlen);
+	
+	if (ret == 0) {
+		sscanf(buf, "%6s", codec_name);
+		
+		if (strcmp(codec_name, "vt1602")) {
+			info("vt1602 string not found");
+			return -EINVAL;
+		}
+	}
+
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+	/*i2c_register_board_info(1, wmt_vt1602_board_info,
+				ARRAY_SIZE(wmt_vt1602_board_info));*/
+
+	adapter = i2c_get_adapter(1);
+	if (adapter == NULL) {
+		err("can not get i2c adapter, client address error");
+		return -ENODEV;
+	}
+	
+	if (i2c_new_device(adapter, wmt_vt1602_board_info) == NULL) {
+		err("allocate i2c client failed");
+		return -ENOMEM;
+	}
+	
+	i2c_put_adapter(adapter);
+
+	ret = i2c_add_driver(&vt1602_i2c_driver);
+	if (ret) {
+		info("i2c_add_driver fail");
+	}	
+#endif
+	
+	return ret;
+}
+module_init(vt1602_modinit);
+
+static void __exit vt1602_exit(void)
+{
+	DBG_DETAIL();
+	
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+	i2c_del_driver(&vt1602_i2c_driver);
+#endif
+}
+module_exit(vt1602_exit);
+
+MODULE_DESCRIPTION("WMT [ALSA SoC] driver");
+MODULE_AUTHOR("WonderMedia Technologies, Inc.");
+MODULE_LICENSE("GPL");
diff --git a/ANDROID_3.4.5/sound/soc/codecs/wmt_vt1602.h b/ANDROID_3.4.5/sound/soc/codecs/wmt_vt1602.h
new file mode 100755
index 00000000..718c822a
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/codecs/wmt_vt1602.h
@@ -0,0 +1,67 @@
+/*++ 
+ * linux/sound/soc/codecs/wmt_vt1602.h
+ * WonderMedia I2S audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+
+#ifndef _VT1602_H
+#define _VT1602_H
+
+/* VT1602 register space */
+
+#define VT1602_LINVOL    0x00
+#define VT1602_RINVOL    0x01
+#define VT1602_LOUT1V    0x02
+#define VT1602_ROUT1V    0x03
+#define VT1602_ADCDAC    0x05
+#define VT1602_IFACE     0x07
+#define VT1602_SRATE     0x08
+#define VT1602_LDAC      0x0a
+#define VT1602_RDAC      0x0b
+#define VT1602_BASS      0x0c
+#define VT1602_TREBLE    0x0d
+#define VT1602_RESET     0x0f
+#define VT1602_3D        0x10
+#define VT1602_ALC1      0x11
+#define VT1602_ALC2      0x12
+#define VT1602_ALC3      0x13
+#define VT1602_NGATE     0x14
+#define VT1602_LADC      0x15
+#define VT1602_RADC      0x16
+#define VT1602_ADCTL1    0x17
+#define VT1602_ADCTL2    0x18
+#define VT1602_PWR1      0x19
+#define VT1602_PWR2      0x1a
+#define VT1602_ADCTL3    0x1b
+#define VT1602_ADCIN     0x1f
+#define VT1602_LADCIN    0x20
+#define VT1602_RADCIN    0x21
+#define VT1602_LOUTM1    0x22
+#define VT1602_LOUTM2    0x23
+#define VT1602_ROUTM1    0x24
+#define VT1602_ROUTM2    0x25
+#define VT1602_MOUTM1    0x26
+#define VT1602_MOUTM2    0x27
+#define VT1602_LOUT2V    0x28
+#define VT1602_ROUT2V    0x29
+#define VT1602_MOUTV     0x2a
+
+#endif
diff --git a/ANDROID_3.4.5/sound/soc/soc-core.c b/ANDROID_3.4.5/sound/soc/soc-core.c
index 18711a50..7e286549 100644
--- a/ANDROID_3.4.5/sound/soc/soc-core.c
+++ b/ANDROID_3.4.5/sound/soc/soc-core.c
@@ -639,7 +639,8 @@ static void soc_resume_deferred(struct work_struct *work)
 			container_of(work, struct snd_soc_card, deferred_resume_work);
 	struct snd_soc_codec *codec;
 	int i;
-
+	
+        int dbg_resume = 0;
 	/* our power state is still SNDRV_CTL_POWER_D3hot from suspend time,
 	 * so userspace apps are blocked from touching us
 	 */
@@ -674,12 +675,23 @@ static void soc_resume_deferred(struct work_struct *work)
 			case SND_SOC_BIAS_OFF:
 				codec->driver->resume(codec);
 				codec->suspended = 0;
+				dbg_resume = 1;
 				break;
 			default:
+				
 				dev_dbg(codec->dev, "CODEC was on over suspend\n");
 				break;
 			}
 		}
+	#if 1	
+		if (!dbg_resume && codec->driver->resume) //add for temp std 2014-3-24
+		{
+			dbg_resume = 1;
+			codec->driver->resume(codec);
+			codec->suspended = 0;
+			
+		}
+	#endif	
 	}
 
 	for (i = 0; i < card->num_rtd; i++) {
@@ -1718,24 +1730,247 @@ int snd_soc_poweroff(struct device *dev)
 EXPORT_SYMBOL_GPL(snd_soc_poweroff);
 
 const struct dev_pm_ops snd_soc_pm_ops = {
-	.suspend = snd_soc_suspend,
-	.resume = snd_soc_resume,
-	.freeze = snd_soc_suspend,
-	.thaw = snd_soc_resume,
-	.poweroff = snd_soc_poweroff,
-	.restore = snd_soc_resume,
+	.suspend = snd_soc_suspend, //PMSG_SUSPEND
+	.resume = snd_soc_resume, //
+	.freeze = snd_soc_suspend,  //PMSG_FREEZE
+	.thaw = snd_soc_resume,   //
+	.poweroff = snd_soc_poweroff, //PMSG_HIBERNATE
+	.restore = snd_soc_resume, //
 };
 EXPORT_SYMBOL_GPL(snd_soc_pm_ops);
 
+/*****add for std 2014-3-24*************/
+
+/* powers down audio subsystem for suspend */
+static int soc_suspend(struct platform_device *dev, pm_message_t state)
+{
+	struct snd_soc_card *card = platform_get_drvdata(dev);
+	struct snd_soc_codec *codec;
+	int i;
+	printk("<<<<<<<<%s, pm state: 0x%x\n", __func__, state.event);
+	
+	/* If the initialization of this soc device failed, there is no codec
+	 * associated with it. Just bail out in this case.
+	 */
+	if (list_empty(&card->codec_dev_list))
+		return 0;
+	
+#if 0	
+	mutex_lock(&std_pm_mutex);
+	if (std_dev_suspend)
+	{
+		mutex_unlock(&std_pm_mutex);
+		return 0;
+	}
+	std_pdev_suspend = 1;
+	mutex_unlock(&std_pm_mutex);
+
+	if (std_pdev_suspend)
+		return 0;
+	
+	std_pdev_suspend = 1;
+#endif		
+	/* Due to the resume being scheduled into a workqueue we could
+	* suspend before that's finished - wait for it to complete.
+	 */
+	
+	if (state.event==PM_EVENT_SUSPEND/*0x2*/ || state.event==PM_EVENT_FREEZE/*0x1*/){ //move from device_driver pm	
+	snd_power_lock(card->snd_card);
+	snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0);
+	snd_power_unlock(card->snd_card);
+
+	/* we're going to block userspace touching us until resume completes */
+	snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot);
+
+	/* mute any active DACs */
+	for (i = 0; i < card->num_rtd; i++) {
+		struct snd_soc_dai *dai = card->rtd[i].codec_dai;
+		struct snd_soc_dai_driver *drv = dai->driver;
+
+		if (card->rtd[i].dai_link->ignore_suspend)
+			continue;
+
+		if (drv->ops->digital_mute && dai->playback_active)
+			drv->ops->digital_mute(dai, 1);
+	}
+
+	/* suspend all pcms */
+	for (i = 0; i < card->num_rtd; i++) {
+		if (card->rtd[i].dai_link->ignore_suspend)
+			continue;
+
+		snd_pcm_suspend_all(card->rtd[i].pcm);
+	}
+
+	if (card->suspend_pre)
+		card->suspend_pre(card);
+
+	for (i = 0; i < card->num_rtd; i++) {
+		struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
+		struct snd_soc_platform *platform = card->rtd[i].platform;
+
+		if (card->rtd[i].dai_link->ignore_suspend)
+			continue;
+
+		if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control)
+			cpu_dai->driver->suspend(cpu_dai);
+		if (platform->driver->suspend && !platform->suspended) {
+			platform->driver->suspend(cpu_dai);
+			platform->suspended = 1;
+		}
+	}
+
+	/* close any waiting streams and save state */
+	for (i = 0; i < card->num_rtd; i++) {
+		flush_delayed_work_sync(&card->rtd[i].delayed_work);
+		card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level;
+	}
+
+	for (i = 0; i < card->num_rtd; i++) {
+		struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai;
+
+		if (card->rtd[i].dai_link->ignore_suspend)
+			continue;
+
+		snd_soc_dapm_stream_event(&card->rtd[i],
+					  SNDRV_PCM_STREAM_PLAYBACK,
+					  codec_dai,
+					  SND_SOC_DAPM_STREAM_SUSPEND);
+
+		snd_soc_dapm_stream_event(&card->rtd[i],
+					  SNDRV_PCM_STREAM_CAPTURE,
+					  codec_dai,
+					  SND_SOC_DAPM_STREAM_SUSPEND);
+	}
+
+	/* suspend all CODECs */
+	list_for_each_entry(codec, &card->codec_dev_list, card_list) {
+		/* If there are paths active then the CODEC will be held with
+		 * bias _ON and should not be suspended. */
+		if (!codec->suspended && codec->driver->suspend) {
+			switch (codec->dapm.bias_level) {
+			case SND_SOC_BIAS_STANDBY:
+				/*
+				 * If the CODEC is capable of idle
+				 * bias off then being in STANDBY
+				 * means it's doing something,
+				 * otherwise fall through.
+				 */
+				if (codec->dapm.idle_bias_off) {
+					dev_dbg(codec->dev,
+						"idle_bias_off CODEC on over suspend\n");
+					break;
+				}
+			case SND_SOC_BIAS_OFF:
+				codec->driver->suspend(codec);
+				codec->suspended = 1;
+				codec->cache_sync = 1;
+				break;
+			default:
+				dev_dbg(codec->dev, "CODEC is on over suspend\n");
+				break;
+			}
+		}
+	}
+
+	for (i = 0; i < card->num_rtd; i++) {
+		struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
+
+		if (card->rtd[i].dai_link->ignore_suspend)
+			continue;
+
+		if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control)
+			cpu_dai->driver->suspend(cpu_dai);
+	}
+
+	if (card->suspend_post)
+		card->suspend_post(card);
+
+	return 0;
+     }
+	
+	if (state.event == PM_EVENT_HIBERNATE) { // 0x4
+		
+	/* Flush out pmdown_time work - we actually do want to run it
+	 * now, we're shutting down so no imminent restart. */
+		for (i = 0; i < card->num_rtd; i++) {
+			struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
+			flush_delayed_work_sync(&rtd->delayed_work);
+		}
+
+		snd_soc_dapm_shutdown(card);
+
+		return 0;	
+		
+	}
+	
+	return 0;
+}
+
+/* powers up audio subsystem after a suspend */
+int soc_resume(struct platform_device *dev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(dev);
+	int i, ac97_control = 0;
+	
+	printk("<<<<<%s\n", __func__);
+
+#if 0	
+	if (std_pdev_suspend)
+		std_pdev_suspend = 0;
+	else
+		return 0;
+#endif 		
+	/* If the initialization of this soc device failed, there is no codec
+	 * associated with it. Just bail out in this case.
+	 */
+	if (list_empty(&card->codec_dev_list))
+		return 0;
+#if 0	
+	mutex_lock(&std_pm_mutex);
+	if (std_dev_suspend)
+	{
+		mutex_unlock(&std_pm_mutex);
+		return 0;
+	}
+	std_pdev_suspend = 0;
+	mutex_unlock(&std_pm_mutex);
+#endif	
+	
+	/* AC97 devices might have other drivers hanging off them so
+	 * need to resume immediately.  Other drivers don't have that
+	 * problem and may take a substantial amount of time to resume
+	 * due to I/O costs and anti-pop so handle them out of line.
+	 */
+	for (i = 0; i < card->num_rtd; i++) {
+		struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
+		ac97_control |= cpu_dai->driver->ac97_control;
+	}
+	if (ac97_control) {
+		dev_dbg(dev, "Resuming AC97 immediately\n");
+		soc_resume_deferred(&card->deferred_resume_work);
+	} else {
+		dev_dbg(dev, "Scheduling resume work\n");
+		if (!schedule_work(&card->deferred_resume_work))
+			dev_err(dev, "resume work item may be lost\n");
+	}
+
+	return 0;
+}
+
+/*********************************************/
+
 /* ASoC platform driver */
 static struct platform_driver soc_driver = {
 	.driver		= {
 		.name		= "soc-audio",
 		.owner		= THIS_MODULE,
-		.pm		= &snd_soc_pm_ops,
+		//.pm		= &snd_soc_pm_ops,
 	},
 	.probe		= soc_probe,
 	.remove		= soc_remove,
+	.suspend	= soc_suspend,
+	.resume		= soc_resume,
 };
 
 /**
diff --git a/ANDROID_3.4.5/sound/soc/soc-dapm.c b/ANDROID_3.4.5/sound/soc/soc-dapm.c
index 64bcd4e2..6201fc54 100644
--- a/ANDROID_3.4.5/sound/soc/soc-dapm.c
+++ b/ANDROID_3.4.5/sound/soc/soc-dapm.c
@@ -1442,7 +1442,15 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event)
 	}
 
 	list_for_each_entry(w, &card->widgets, list) {
-		list_del_init(&w->dirty);
+		switch (w->id) {
+		case snd_soc_dapm_pre:
+		case snd_soc_dapm_post:
+			/* These widgets always need to be powered */
+			break;
+		default:
+			list_del_init(&w->dirty);
+			break;
+		}
 
 		if (w->power) {
 			d = w->dapm;
@@ -3266,7 +3274,7 @@ void snd_soc_dapm_shutdown(struct snd_soc_card *card)
 {
 	struct snd_soc_codec *codec;
 
-	list_for_each_entry(codec, &card->codec_dev_list, list) {
+	list_for_each_entry(codec, &card->codec_dev_list, card_list) {
 		soc_dapm_shutdown_codec(&codec->dapm);
 		if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY)
 			snd_soc_dapm_set_bias_level(&codec->dapm,
diff --git a/ANDROID_3.4.5/sound/soc/wmt/Kconfig b/ANDROID_3.4.5/sound/soc/wmt/Kconfig
new file mode 100755
index 00000000..344ec73d
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/Kconfig
@@ -0,0 +1,65 @@
+config SND_WMT_SOC
+	bool "SoC Audio for the WMT chip"
+	depends on ARCH_WMT && SND && SND_SOC
+	help
+	  Say Y or M if you want to add support for codecs attached to
+	  the WMT AC97, I2S interface. You will also need
+	  to select the audio interfaces to support below.
+
+#
+# WMT ALSA I2S driver
+#
+config SND_WMT_SOC_I2S
+        bool "SoC I2S Audio support for WMT"
+        depends on SND_WMT_SOC
+        ---help---
+          Say Y or M if you want to add support for codecs attached to
+	  		the WMT I2S interface.
+	  		
+config SND_WMT_SOC_PDM
+        bool "SoC PDM Audio Interface support for WMT"
+        depends on SND_WMT_SOC
+        ---help---
+          Say Y or M if you want to add support for codecs attached to
+	  		the WMT PDM interface.
+
+config I2S_HW_DAC
+        bool "HW_DAC"
+        depends on SND_WMT_SOC_I2S
+        select SND_SOC_HWDAC
+        ---help---
+          Say Y here if you want to use HW DAC.
+          	  		
+config I2S_CODEC_VT1602
+        bool "VT1602"
+        depends on SND_WMT_SOC_I2S
+        select SND_SOC_VT1602
+        ---help---
+          Say Y here if you want to use VT1602 as the I2S Codec.
+          
+config I2S_CODEC_WM8900
+        bool "WM8900"
+        depends on SND_WMT_SOC_I2S
+        select SND_SOC_WM8900
+        ---help---
+          Say Y here if you want to use WM8900 as the I2S Codec.
+          
+config I2S_CODEC_WM8994
+        bool "WM8994"
+        depends on SND_WMT_SOC_I2S
+        select SND_SOC_WM8994
+        ---help---
+          Say Y here if you want to use WM8994 as the I2S Codec.
+          
+config I2S_CODEC_VT1603
+        bool "VT1603"
+        depends on SND_WMT_SOC_I2S
+        select SND_SOC_VT1603
+        ---help---
+          Say Y here if you want to use VT1603 as the I2S Codec.
+
+config ECHO_CANCELLATION_FM34
+        tristate "FM34"
+        select SND_SOC_WMT_FM34
+        ---help---
+          Say Y here if you want to use fm34 to echo cancallation. 
diff --git a/ANDROID_3.4.5/sound/soc/wmt/Makefile b/ANDROID_3.4.5/sound/soc/wmt/Makefile
new file mode 100755
index 00000000..bf4a07ef
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/Makefile
@@ -0,0 +1,12 @@
+#
+## Makefile for ALSA WMT
+#
+#
+# WMT SOC Support
+snd-soc-wmt-i2s-objs := wmt-i2s.o wmt_swmixer.o
+snd-soc-wmt-objs := wmt-soc.o wmt-pcm.o wmt_wm8994.o wmt_hwdep.o
+
+snd-soc-wmt-pdm-objs := wmt-pcm-controller.o wmt-pcm-dma.o
+obj-$(CONFIG_SND_WMT_SOC_I2S) += snd-soc-wmt-i2s.o
+obj-$(CONFIG_SND_WMT_SOC) += snd-soc-wmt.o
+obj-$(CONFIG_SND_WMT_SOC_PDM) += snd-soc-wmt-pdm.o
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt-i2s.c b/ANDROID_3.4.5/sound/soc/wmt/wmt-i2s.c
new file mode 100755
index 00000000..643d25e2
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt-i2s.c
@@ -0,0 +1,1105 @@
+/*++ 
+ * linux/sound/soc/wmt/wmt-i2s.c
+ * WonderMedia I2S audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <asm/irq.h>
+#include <linux/delay.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include <linux/gpio.h>
+#include <mach/wmt_iomux.h>
+#include <linux/suspend.h>
+
+#include <mach/hardware.h>
+#include <asm/dma.h>
+#include "wmt-soc.h"
+#include "wmt-pcm.h"
+
+#define NULL_DMA                ((dmach_t)(-1))
+#define AUD_SPDIF_ENABLE	1
+
+static int wmt_i2s_output = 0; //hdmi enable or not 2013-9-3 //maybe can remove it 2013-10-24
+static int wmt_codec_wm8994 = 0; //env set 2013-9-3
+
+static int gpio_pa = -1;
+static int gpio_active = 0;
+extern int wmt_gpio_setpull(unsigned int gpio, enum wmt_gpio_pulltype pull);
+/*
+ * Debug
+ */
+#define AUDIO_NAME "WMT_I2S"
+//#define WMT_I2S_DEBUG 1
+//#define WMT_I2S_DEBUG_DETAIL 1
+
+#ifdef WMT_I2S_DEBUG
+#define DPRINTK(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
+#else
+#define DPRINTK(format, arg...) do {} while (0)
+#endif
+
+#ifdef WMT_I2S_DEBUG_DETAIL
+#define DBG_DETAIL(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": [%s]" format "\n" , __FUNCTION__, ## arg)
+#else
+#define DBG_DETAIL(format, arg...) do {} while (0)
+#endif
+
+#define err(format, arg...) \
+	printk(KERN_ERR AUDIO_NAME ": " format "\n" , ## arg)
+#define info(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
+#define warn(format, arg...) \
+	printk(KERN_WARNING AUDIO_NAME ": " format "\n" , ## arg)
+
+struct wmt_i2s_asoc_data {
+	int stream_id;
+	unsigned int bus_id;
+	struct i2s_s i2s;
+	/*
+	 * Flags indicating is the bus already activated and configured by
+	 * another substream
+	 */
+	unsigned char HDMI_and_DAC0; //new env set to determine
+	unsigned char HDMI_aud_enable; //same with global wmt_i2s_output
+	
+	int active;
+	int configured;
+	unsigned char CH_SEL_NUM;
+	unsigned char HDMI_SPDIF_STATE;
+	/*struct timer_list delay_timer;*/
+	struct audio_stream_a s[2];
+};
+static struct timer_list pa_timer;
+
+static int audio_interface_mode = 0;//add 2014-6-24 i2s left right
+
+static int wmt_pdm_module_enable = 0;
+extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen);
+
+#define to_i2s_data(priv)	container_of((priv), struct wmt_i2s_asoc_data, bus_id)
+#define SNDRV_PCM_STREAM_ALL	2
+
+static void i2s_init(int mode);
+static void i2s_exit(void);
+
+#ifdef CONFIG_FB_WMT
+extern int vpp_set_audio(int format, int sample_rate, int channel);
+#endif
+
+
+static struct wmt_i2s_asoc_data i2s_data[NUM_LINKS] = {
+	{
+		.bus_id = 0, //?? 2 SNDRV_PCM_STREAM_ALL
+		.i2s = {
+				/* interrupt counters */
+				{0, 0, 0, 0, 0, 0, 0, 0},
+				/* irq number*/
+				0,
+				/* reference counter */
+				0,
+				/* channels */
+				0,
+				/* format */
+				0,
+				/* fragment size */
+				0,
+				/* sample rate */
+				0,
+				i2s_init,
+				i2s_exit,
+		},
+		.s =  {
+			{
+				.id = "WMT I2S out",
+				.stream_id = SNDRV_PCM_STREAM_PLAYBACK,
+				.dmach = NULL_DMA,
+				.dma_dev = AHB1_AUD_DMA_REQ_1,
+				/*.dma_cfg = dma_device_cfg_table[I2S_TX_DMA_REQ],*/
+			},
+			{
+				.id = "WMT I2S in",
+				.stream_id = SNDRV_PCM_STREAM_CAPTURE,
+				.dmach = NULL_DMA,
+				.dma_dev = AHB1_AUD_DMA_REQ_0,
+				/*.dma_cfg = dma_device_cfg_table[I2S_RX_DMA_REQ],*/
+			},
+		},
+		.HDMI_aud_enable = 0,
+		.HDMI_and_DAC0 = 0,
+		.CH_SEL_NUM = 2,
+		.HDMI_SPDIF_STATE = 6,//hdmi spdif play at sametime
+	},
+};
+
+
+/* for HDMI Audio status */
+int hd_audio_flag = 0;
+
+
+
+#ifdef CONFIG_WMT_I2S_INT
+/* wmt_i2s_interrupt()
+ *
+ * It's only interrupt counter now, might be useful to
+ * debug or benchmark.
+ */
+static irqreturn_t
+wmt_i2s_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	DBG_DETAIL();
+	
+	return IRQ_HANDLED;
+}
+#endif
+
+#if 0
+static void delay_timer_handler(unsigned long data)
+{
+	DBG_DETAIL();
+}
+#endif
+
+static void pa_timer_handler(unsigned long data)
+{
+	printk("%s\n", __func__);
+	if (gpio_pa >= 0)
+	{
+		
+		gpio_direction_output(gpio_pa, gpio_active);
+	}
+}
+
+void wmt_i2s_ch_config(void)
+{
+	/* CH_SEL_NUM = 0, mesns output L to SPDIF&DAC's L and R
+	                1, mesns output R to SPDIF&DAC's L and R
+	                2, means normal stereo output to SPDIF&DAC */
+	switch (i2s_data->CH_SEL_NUM) {
+	case 0:
+		ASMPFCHCFG0_VAL = 0x10100000;
+		ASMPF2HDACHCFG_VAL = 0x76543200;
+		break;
+	case 1:
+		ASMPFCHCFG0_VAL = 0x10101111;
+		ASMPF2HDACHCFG_VAL = 0x76543211;
+		break;
+	case 2:
+		ASMPFCHCFG0_VAL = 0x10101010;
+		ASMPF2HDACHCFG_VAL = 0x76543210;
+		break;
+	}
+
+	if (i2s_data->i2s.channels == 0x01) {
+		ASMPFCHCFG0_VAL = 0x10100000;
+		ASMPF2HDACHCFG_VAL = 0x76543200;
+	}
+
+	if (i2s_data->HDMI_aud_enable) {
+		/* disable DAC#0, if HDMI Audio is enabled  */
+		ASMPFCHCFG0_VAL &= 0xFFFF00FF;
+		ASMPFCHCFG0_VAL |= 0x00009800;
+	}
+
+	/* HDMI_SPDIF_STATE = 3, means disable HDMI&SPDIF
+	                      4, means enable HDMI only
+	                      5, means enable SPDIF only
+	                      6, means enable HDMI&SPDIF as normal */
+	switch (i2s_data->HDMI_SPDIF_STATE) {
+	case 3:
+		ASMPFCHCFG0_VAL &= 0xFFFFFF00;
+		ASMPFCHCFG0_VAL |= 0x00000098;
+		ASMPF2HDACHCFG_VAL &= 0xFFFFFF00;
+		ASMPF2HDACHCFG_VAL |= 0x00000076;
+		break;
+	case 4:
+		ASMPFCHCFG0_VAL &= 0xFFFFFF00;
+		ASMPFCHCFG0_VAL |= 0x00000098;
+		break;
+	case 5:
+		ASMPF2HDACHCFG_VAL &= 0xFFFFFF00;
+		ASMPF2HDACHCFG_VAL |= 0x00000076;
+		break;	
+	}
+}
+
+
+void wmt_i2s_dac0_ctrl(int HDMI_audio_enable)
+{
+	/* check if output to HDMI audio and DAC0 at same time */
+	if (i2s_data->HDMI_and_DAC0)
+		return;
+	
+	if (HDMI_audio_enable) {
+		i2s_data->HDMI_aud_enable = 1;
+		info("HDMI Audio is enabled, disable dac0 of I2S");
+	}
+	else {
+		i2s_data->HDMI_aud_enable = 0;
+		info("HDMI Audio is disabled, enable dac0 of I2S");
+	}
+
+	wmt_i2s_ch_config();
+
+	info("CHCFG0=0x%x, HDACHCFG=0x%x", ASMPFCHCFG0_VAL, ASMPF2HDACHCFG_VAL);
+}
+EXPORT_SYMBOL(wmt_i2s_dac0_ctrl);
+void wmt_i2s_ch_sel(int ch_sel_num)
+{
+	if (ch_sel_num < 3)
+		i2s_data->CH_SEL_NUM = ch_sel_num;
+	else
+		i2s_data->HDMI_SPDIF_STATE = ch_sel_num;
+	
+	wmt_i2s_ch_config();
+
+
+	info("SEL: CHCFG0=0x%x, HDACHCFG=0x%x", ASMPFCHCFG0_VAL, ASMPF2HDACHCFG_VAL);
+}
+EXPORT_SYMBOL(wmt_i2s_ch_sel);
+
+static void i2s_disable(void)
+{
+	DBG_DETAIL();
+
+	DACCFG_VAL &= ~DACITF_ENABLE;
+	ASMPFCFG_VAL &=~ASMPF_ENABLE;
+	HDACKGEN_VAL &= ~HDACKGEN_ENABLE;
+	
+#ifdef AUD_SPDIF_ENABLE
+	DGOCFG_VAL &= ~DGOITF_ENABLE;
+#endif
+
+	AADCF0CFG_VAL &= ~(AADCITF_ENABLE | AADCF_ENABLE);
+}
+
+static void i2s_enable(void)
+{
+	DBG_DETAIL();
+
+	AADCF0CFG_VAL |= (AADCITF_ENABLE | AADCF_ENABLE);
+	ASMPFCFG_VAL |= (ASMPF_ENABLE);
+	
+#ifdef AUD_SPDIF_ENABLE
+	DGOCFG_VAL |= DGOITF_ENABLE;
+#endif
+
+	DACCFG_VAL |= DACITF_ENABLE;
+
+	if (hd_audio_flag)
+		HDACKGEN_VAL |= HDACKGEN_ENABLE;
+}
+
+static void aud_audprf_setting(unsigned char smp_rate_index)
+{
+	unsigned long cfg_tbl[] = {0x00002001, 0x00002001, 0x00002001,
+		0x00002001, 0x00002001, 0x00002001, 0x00002001, 0x00002001,
+		0x00002001, 0x00002001, 0x00002001, 0x00002001,
+		0x00000001, 0x00000001, 0x00000001
+	};
+	unsigned int dgo_tbl[] = {0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+								0x02, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00, 0x00};
+	unsigned int sysclk_tbl[] = {4096, 5632, 6144, 8192, 11264, 12288, 16384,
+								22579, 24576, 32768, 45056, 49152, 16384, 22528, 24576};
+#ifdef AUD_SPDIF_ENABLE	
+	unsigned int dgocs_tbl[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03,
+								0x00, 0x02, 0x00, 0x08, 0x0A, 0x00, 0x0C, 0x0E};
+#endif
+	//unsigned int clock = 0;
+	unsigned long aud_reg_val;
+
+	DBG_DETAIL();
+	
+	ADCCFG_VAL = cfg_tbl[smp_rate_index];
+
+	aud_reg_val = dgo_tbl[smp_rate_index];
+	DGOCFG_VAL = aud_reg_val;
+	HDACKGEN_VAL = aud_reg_val;
+
+#ifdef AUD_SPDIF_ENABLE	
+	/* set ADGO channel status */
+	aud_reg_val = dgocs_tbl[smp_rate_index] << 24;
+	DGOCS0A_VAL = aud_reg_val;
+	DGOCS1A_VAL = aud_reg_val;
+	//info("%s : DGOCS01A_VAL=0x%x", __func__, (unsigned int)aud_reg_val);
+#endif	
+
+	DACCFG_VAL = cfg_tbl[smp_rate_index];
+
+	auto_pll_divisor(DEV_I2S, CLK_ENABLE , 0, 0);
+	auto_pll_divisor(DEV_I2S, SET_PLLDIV, 1, sysclk_tbl[smp_rate_index]);
+	/*clock = auto_pll_divisor(DEV_I2S, GET_FREQ , 0, 0);
+	info("%s : clock=%d", __func__, clock);*/
+}
+
+static unsigned char aud_smp_rate_convert(unsigned int smp_rate)
+{
+	unsigned char i = 0;
+	unsigned int smp_rate_tbl[] = {8000, 11025, 12000, 16000, 22050, 24000, 32000,
+		                           44100, 48000, 64000, 88200, 96000, 128000, 176000, 192000};
+
+	DBG_DETAIL();
+	
+	/* boundary checking */
+	if (smp_rate < 8000) {
+		i = 0x00;
+	}
+	else if (smp_rate > 192000) {
+		i = 0x0E;
+	}
+	else {
+		for (i = 0; i < 0x1F; i++) {
+			if (smp_rate == smp_rate_tbl[i]) {
+				break;
+			}
+			else if (smp_rate < smp_rate_tbl[i + 1]) {
+				if (smp_rate < (smp_rate_tbl[i] + ((smp_rate_tbl[i + 1] - smp_rate_tbl[i]) / 2))) {
+					break;
+				}
+				else {
+					i++;
+					break;
+				}
+			}
+		}
+	}
+
+	return i;
+	
+}
+
+static void i2s_sample_rate(unsigned int rate)
+{
+	unsigned char rate_index;
+
+	DBG_DETAIL("rate=%d", rate);
+
+	if (rate == i2s_data->i2s.rate)
+		return;
+
+	i2s_data->i2s.rate = rate;
+	
+	rate_index = aud_smp_rate_convert(rate);
+	
+	aud_audprf_setting(rate_index);
+
+#ifdef CONFIG_FB_WMT
+	/* pass information of audio to HDMI Audio */
+	hd_audio_flag = vpp_set_audio(16, rate, 2);
+#endif	
+}
+
+static int i2sdacdat_gpio = -1;//means don't touch GP10 bit0-3 i2sDacDat0-3
+
+void wmt_set_i2s_share_pin(void)
+{
+	int pwren_num,active_level,gpio_int_num;
+	char buf[256];
+	int varlen = 256;
+	static int gpio26_mux = -1;
+	unsigned int gpval = 0x0;
+	
+	if(gpio26_mux == -1){
+		if(wmt_getsyspara("wmt.bt.mtk6622",buf,&varlen) == 0)
+		{
+		  sscanf(buf,"%d:%d:%d",&pwren_num,&active_level,&gpio_int_num);
+		  printk("use customized value:p%d,a%d,i%d\n",pwren_num,active_level,gpio_int_num);
+		  if(pwren_num == 62){
+			gpio26_mux = 0x01;
+		  }else{
+			gpio26_mux = 0x00;
+		  }
+				
+		}else{
+			gpio26_mux = 0x00;
+		}
+	}
+	printk("%s gpio26_mux:%d\n",__func__,gpio26_mux);
+	if(!gpio26_mux){
+		/* disable GPIO and enable Pull Down mode */
+		gpval &= ~0xff;
+		//GPIO_CTRL_GP10_I2S_BYTE_VAL &= ~0xFF; // 0xFF bit1
+	}else{
+		gpval &= ~0xF7;
+		//GPIO_CTRL_GP10_I2S_BYTE_VAL &= ~0xF7;
+	}
+
+	// configure I2SDACDAT1/2/3 as GPIO function but mmax-wm8994 that configured as I2SADCLRC/I2SADCBLCK
+	if (!wmt_codec_wm8994)
+	{	
+		gpval |= (BIT1 | BIT2 | BIT3);
+		//GPIO_CTRL_GP10_I2S_BYTE_VAL |= (BIT1 | BIT2 | BIT3);
+		
+	}	
+	
+	//add for mainly i2sdacdat1 work as gpio to control led 2014-8-15 so here just keep it specific func
+	//tp driver will use it as gpio
+	switch (i2sdacdat_gpio)
+	{
+		case 1:
+			gpval |= BIT1;
+			//GPIO_CTRL_GP10_I2S_BYTE_VAL |= BIT1; // i2sdacdat1 work as gpio
+			break;
+		case 2:
+			gpval |= BIT2;
+			//GPIO_CTRL_GP10_I2S_BYTE_VAL |= BIT2;
+			break;
+		case 3:
+			gpval |= BIT3;
+			//GPIO_CTRL_GP10_I2S_BYTE_VAL |= BIT3;
+			break;
+		
+	}
+	GPIO_CTRL_GP10_I2S_BYTE_VAL = gpval;
+	
+	GPIO_CTRL_GP11_I2S_BYTE_VAL &= ~(BIT0 | BIT1 | BIT2);
+	
+	if(!gpio26_mux){
+		PULL_EN_GP10_I2S_BYTE_VAL |= 0xFF;
+	}else{
+		PULL_EN_GP10_I2S_BYTE_VAL |= 0xF7;
+	}
+	PULL_EN_GP11_I2S_BYTE_VAL |= (BIT0 | BIT1 | BIT2);
+
+	if(!gpio26_mux){
+	/* set to 2ch input, 2ch output */	
+	PIN_SHARING_SEL_4BYTE_VAL &= ~(BIT15 | BIT17 | BIT19 | BIT20);
+	PIN_SHARING_SEL_4BYTE_VAL |= (BIT1 | BIT16 | BIT18);
+	}else{
+	PIN_SHARING_SEL_4BYTE_VAL &= ~(BIT15 | BIT17 | BIT20);
+	PIN_SHARING_SEL_4BYTE_VAL |= (BIT1 | BIT16);	
+	}
+}
+EXPORT_SYMBOL(wmt_set_i2s_share_pin);
+
+static void i2s_init(int mode)
+{
+#ifdef DEBUG
+	int ret;
+#endif
+	int temp ;
+	//unsigned int clock = 0;
+
+	DPRINTK("i2s_ref = %d ", i2s_data->i2s.ref);
+
+	if (++i2s_data->i2s.ref > 1)
+		return;
+
+	DBG_DETAIL();
+	
+	if (!mode) {
+		/* set to 24.576MHz */
+		auto_pll_divisor(DEV_I2S, CLK_ENABLE , 0, 0);
+		auto_pll_divisor(DEV_I2S, SET_PLLDIV, 1, 24576);
+		/*clock = auto_pll_divisor(DEV_I2S, GET_FREQ , 0, 0);
+		info("%s : clock=%d \n" , __func__, clock);*/
+
+		/* Enable BIT4:ARFP clock, BIT3:ARF clock */
+		PMCEU_VAL |= (BIT4 | BIT3);
+
+		/* Enable BIT2:AUD clock */
+		PMCE3_VAL |= BIT2;
+
+		wmt_set_i2s_share_pin();
+	}
+
+	/* connect DZDRQ8 to ADC0 FIFO, DZDRQ9 to DAC FIFO and DZDRQA to ADC1 FIFO */
+	DZDRQ8_CFG_VAL = 0x0;
+	DZDRQ9_CFG_VAL = 0x1;
+	DZDRQA_CFG_VAL = 0x2;
+
+	DACCFG_VAL = 0x0;
+	ADCCFG_VAL = 0x0;
+
+	/* little endian, signed format, enable sample FIFO, 16bit sample, 2 channel */
+	ASMPFCFG_VAL = 0x52;
+
+	/* assign ch0 to DAC#0_L, DAC#1_L, DAC#2_L, SPDIF_L,
+			  ch1 to DAC#0_R, DAC#1_R, DAC#2_R, SPDIF_R */
+	ASMPFCHCFG0_VAL = 0x10101010;
+
+	/* assign ch0 to DAC#3_L, ch1 to DAC#3_R */
+	ASMPFCHCFG1_VAL = 0x10;
+
+	/* select ADCDAT0, 16 bits mode, enable AADCFIFO and AADCITF */
+	AADCF0CFG_VAL = (AADCITF_ENABLE | AADCF16_ENABLE | AADCF_ENABLE);
+	
+	/* the sequence must be ARF_ADCCFG first then ARF_DGOCFG, finally ARF_DACCFG while slave mode,
+	   otherwise will generate noise when record function is active */ 
+	
+	/* ADC slave mode, 48K sample rate, I2S mode */
+	ADCCFG_VAL = 0x2001;
+
+	i2s_data->i2s.rate = 48000;
+	i2s_data->i2s.channels = 2;
+	i2s_data->i2s.format = SNDRV_PCM_FORMAT_S16_LE;
+
+#ifdef AUD_SPDIF_ENABLE
+	/* B1: 0 -> PCM, 1 -> Bitstream 
+	   B24 ~ B27: sample rate */
+	/* set ADGO channel status for 48K sample rate */
+	DGOCS0A_VAL = 0x02 << 24;
+	DGOCS1A_VAL = 0x02 << 24;
+	
+	/* enable ADGOITF and ADGOCKGEN for 48K sample rate */
+	DGOCFG_VAL = 0x82;
+#endif
+	
+	/* enable ADACITF and ADACCKGEN for 44.1K sample rate, I2S mode */
+	DACCFG_VAL = 0x402001;
+	if (audio_interface_mode == 1)
+	{
+		printk("<<<<<%s left justified!\n", __func__);
+		//left justified bit20: 0->i2s, 1->l/r clock polarity
+		DACCFG_VAL |= 0x1 << 20;
+		//bit7:0 padding added to dac serial data output  
+		//0 = LJ
+                //1 = I2S
+               //others = RJ (depends on Bit 11:8)
+	       
+		DACCFG_VAL &= ~(0x1<<0);
+		
+	}
+
+	/* enable HD Audio clock for 48K sample rate or not*/
+	HDACKGEN_VAL = 0x12;
+
+#ifdef CONFIG_FB_WMT	
+	/* pass information of audio to HDMI Audio */
+	hd_audio_flag = vpp_set_audio(16, i2s_data->i2s.rate, i2s_data->i2s.channels);
+	ASMPF2HDACHCFG_VAL = 0x76543210;
+#endif
+	
+	if (!hd_audio_flag)
+		HDACKGEN_VAL = 0;
+
+	/* audio peri reset */
+	temp = AUDPRFRST_VAL;
+	
+#ifdef AUD_SPDIF_ENABLE
+	temp |= (ASMPF_RESET | DACITF_RESET | ADCITF_RESET | DGOITF_RESET);
+#else
+	temp |= (ASMPF_RESET | DACITF_RESET | ADCITF_RESET);
+#endif
+
+	AUDPRFRST_VAL = temp;
+
+	/*
+	 request irq
+	*/
+#ifdef CONFIG_WMT_I2S_INT
+	ret = request_irq(i2s_data->i2s.irq,
+			wmt_i2s_interrupt,
+			SA_INTERRUPT,
+			"wmt_alsa_vt1602",
+			NULL);
+	if (ret)
+		printk("%s : unable to request IRQ \n" , __func__);
+#endif
+}
+
+static void i2s_exit(void)
+{
+	DBG_DETAIL();
+
+	if (--i2s_data->i2s.ref)
+		return;
+
+	DPRINTK("Do i2s_exit ");
+
+#ifdef CONFIG_WMT_I2S_INT	
+	free_irq(i2s_data->i2s.irq, NULL);
+#endif
+
+	/* Reset counter.*/
+	memset(&i2s_data->i2s.ints, 0, sizeof(struct i2s_ints_s));
+	return;
+}
+
+static int wmt_i2s_dai_startup(struct snd_pcm_substream *substream,
+											struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int stream_id = substream->pstr->stream;
+	struct audio_stream_a *s = &i2s_data->s[0];
+	
+	DBG_DETAIL();
+	
+	s[stream_id].stream = substream;
+
+	runtime->private_data = s;
+
+	return 0;
+}
+
+static void wmt_i2s_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+	DBG_DETAIL();
+}
+
+static int wmt_i2s_dai_trigger(struct snd_pcm_substream *substream, int cmd,
+								struct snd_soc_dai *dai)
+{
+	int err = 0;
+	int stream_id = substream->pstr->stream;
+
+	DBG_DETAIL();
+	
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) {
+			ASMPFCFG_VAL |= ASMPF_ENABLE;
+		}
+		else if (stream_id == SNDRV_PCM_STREAM_CAPTURE) {
+			AADCF0CFG_VAL |= AADCF_ENABLE;
+		}
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) {
+			ASMPFCFG_VAL &= ~ASMPF_ENABLE;
+		}
+		else if (stream_id == SNDRV_PCM_STREAM_CAPTURE) {
+			AADCF0CFG_VAL &= ~AADCF_ENABLE;
+		}
+		
+		/*
+		mod_timer(&i2s_data->delay_timer, jiffies + HZ / 100);
+		*/
+		break;
+	default:
+		err = -EINVAL;
+	}
+
+	return err;
+}
+
+static int wmt_i2s_dai_hw_params(struct snd_pcm_substream *substream,
+				    struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	DBG_DETAIL();
+	return 0;
+}
+
+static int wmt_i2s_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	unsigned int channel, byte;
+	int stream_id = substream->pstr->stream;
+
+#ifdef CONFIG_SND_OSSEMUL
+	//info("oss.rate=%d, oss.channels=%d", runtime->oss.rate, runtime->oss.channels);
+#else
+	DBG_DETAIL();
+#endif
+
+	byte = (runtime->sample_bits)/8;
+	channel = runtime->channels;
+
+	DPRINTK("snd_wmt_alsa_prepare byte = %d, channels = %d", byte, runtime->channels);
+	
+
+	if ((runtime->rate != i2s_data->i2s.rate) || (runtime->format != i2s_data->i2s.format) ||
+			(runtime->channels != i2s_data->i2s.channels) || (stream_id != i2s_data->stream_id)) {
+		info("***  stream_id=%d, rate=%d, format=0x%x channels=%d ***",
+			stream_id, runtime->rate, runtime->format, runtime->channels);
+		i2s_data->i2s.format = runtime->format;
+		i2s_data->i2s.channels = runtime->channels;
+		i2s_data->stream_id = stream_id;
+	}		
+	else { 			
+		return 0;
+	}	
+
+	i2s_disable();
+
+	/* format setting */
+	if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) {
+		/* little or big endian check */
+		switch (runtime->format) {
+			case SNDRV_PCM_FORMAT_S16_BE:
+			case SNDRV_PCM_FORMAT_U16_BE:
+			case SNDRV_PCM_FORMAT_S24_BE:
+			case SNDRV_PCM_FORMAT_U24_BE:
+			case SNDRV_PCM_FORMAT_S32_BE:
+			case SNDRV_PCM_FORMAT_U32_BE:	
+				ASMPFCFG_VAL |= ASMPF_EXCH_ENDIAN;
+				break;
+			default:	
+			ASMPFCFG_VAL &= ~ASMPF_EXCH_ENDIAN;
+				break;
+		}
+
+		/* unsigned or signed check */
+		switch (runtime->format) {
+			case SNDRV_PCM_FORMAT_U8:
+			case SNDRV_PCM_FORMAT_U16_LE:
+			case SNDRV_PCM_FORMAT_U16_BE:
+			case SNDRV_PCM_FORMAT_U24_LE:
+			case SNDRV_PCM_FORMAT_U24_BE:
+			case SNDRV_PCM_FORMAT_U32_LE:
+			case SNDRV_PCM_FORMAT_U32_BE:	
+				ASMPFCFG_VAL |= ASMPF_EXCH_FMT;
+				break;
+			default:	
+			ASMPFCFG_VAL &= ~ASMPF_EXCH_FMT;
+				break;
+		}
+
+		/* sample quantization check */
+		ASMPFCFG_VAL &= ~(BIT4 | BIT5);
+		switch (runtime->format) {
+			case SNDRV_PCM_FORMAT_S8:
+			case SNDRV_PCM_FORMAT_U8:
+				ASMPFCFG_VAL |= ASMPF_8BIT_SMP;
+				break;
+			case SNDRV_PCM_FORMAT_S16_LE:
+			case SNDRV_PCM_FORMAT_S16_BE:
+			case SNDRV_PCM_FORMAT_U16_LE:
+			case SNDRV_PCM_FORMAT_U16_BE:
+				ASMPFCFG_VAL |= ASMPF_16BIT_SMP;
+				break;
+			case SNDRV_PCM_FORMAT_S32_LE:
+			case SNDRV_PCM_FORMAT_S32_BE:
+			case SNDRV_PCM_FORMAT_U32_LE:
+			case SNDRV_PCM_FORMAT_U32_BE:
+				ASMPFCFG_VAL |= ASMPF_32BIT_SMP;
+				break;
+		case SNDRV_PCM_FORMAT_S24_LE:
+		case SNDRV_PCM_FORMAT_S24_BE:
+		case SNDRV_PCM_FORMAT_U24_LE:
+		case SNDRV_PCM_FORMAT_U24_BE:
+			info("*** Not Supported: fmt=24Bit ***");
+			default:	
+				break;
+		}
+
+		/* channel number check */
+		ASMPFCFG_VAL &= ~(BIT0 | BIT1 | BIT2 | BIT3);
+		ASMPFCFG_VAL |= runtime->channels;
+
+		wmt_i2s_ch_config();
+		info("Prepare: CHCFG0=0x%x, HDACHCFG=0x%x", ASMPFCHCFG0_VAL, ASMPF2HDACHCFG_VAL);
+	}
+
+	/* sample rate setting */
+#ifdef CONFIG_SND_OSSEMUL
+	if (runtime->oss.rate) {
+		i2s_sample_rate(runtime->oss.rate);
+	}
+	else {
+		i2s_sample_rate(runtime->rate);
+	}
+#else
+	i2s_sample_rate(runtime->rate);
+#endif
+
+	i2s_enable();
+
+	/*
+	printk("avail_max=%d, rate=%d, channels=%d, period_size=%d, periods=%d, buffer_size=%d, tick_time=%d, \
+		min_align=%d, byte_align=%d, frame_bits=%d, sample_bits=%d, sleep_min=%d, xfer_align=%d, boundary=%d\n", 
+		runtime->avail_max, runtime->rate, runtime->channels, runtime->period_size, runtime->periods, 
+		runtime->buffer_size, runtime->tick_time, runtime->min_align, runtime->byte_align,
+		runtime->frame_bits, runtime->sample_bits,
+		runtime->sleep_min, runtime->xfer_align, runtime->boundary);
+	*/
+	return 0;
+}
+
+/*
+ * This must be called before _set_clkdiv and _set_sysclk since McBSP register
+ * cache is initialized here
+ */
+static int wmt_i2s_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai,
+				      unsigned int fmt)
+{
+	DBG_DETAIL();
+	return 0; //add rambo 2013-3-13
+	
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		break;
+	default:
+		/* Unsupported data format */
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBS_CFS:
+		break;
+	case SND_SOC_DAIFMT_CBM_CFM:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* Set bit clock (CLKX/CLKR) and FS polarities */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		/*
+		 * Normal BCLK + FS.
+		 * FS active low. TX data driven on falling edge of bit clock
+		 * and RX data sampled on rising edge of bit clock.
+		 */
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int wmt_i2s_suspend(struct snd_soc_dai *cpu_dai)
+{
+	printk("%s!\n", __func__);
+	
+	DBG_DETAIL();
+
+	i2s_data->i2s.ref = 0;
+#if 1	
+	if (gpio_pa >= 0)
+	{
+		gpio_direction_output(gpio_pa, !gpio_active);
+	}
+#endif	
+	return 0;
+}
+
+static int wmt_i2s_resume(struct snd_soc_dai *cpu_dai)
+{
+	printk("%s!\n", __func__);
+	
+	DBG_DETAIL();
+	
+	i2s_init(1);
+
+	wmt_i2s_ch_config();
+#if 1	
+	if (gpio_pa >= 0)
+	{
+		gpio_direction_output(gpio_pa, gpio_active);
+		mdelay(50);
+	}
+#endif	
+	info("Resume: CHCFG0=0x%x, HDACHCFG=0x%x", ASMPFCHCFG0_VAL, ASMPF2HDACHCFG_VAL);
+	return 0;
+}
+#else
+#define wmt_i2s_suspend		NULL
+#define wmt_i2s_resume		NULL
+#endif
+
+static struct snd_soc_dai_ops wmt_i2s_dai_ops = {
+	.startup	= wmt_i2s_dai_startup,
+	.prepare = wmt_i2s_prepare,
+	.shutdown = wmt_i2s_dai_shutdown,
+	.trigger = wmt_i2s_dai_trigger,
+	.hw_params = wmt_i2s_dai_hw_params,
+	.set_fmt = wmt_i2s_dai_set_dai_fmt,
+};
+
+struct snd_soc_dai_driver wmt_i2s_dai = {
+	.suspend = wmt_i2s_suspend,
+	.resume = wmt_i2s_resume,
+	.playback = {
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_FLOAT,
+	},
+	.capture = {
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+	.ops = &wmt_i2s_dai_ops,
+};
+
+static int wmt_i2s_probe(struct platform_device *pdev)
+{
+	int ret;
+	char buf[64];
+	int varlen = 64;
+	
+	DBG_DETAIL();
+
+	ret = wmt_getsyspara("wmt.audio.pcm", buf, &varlen);
+	if (ret == 0) {
+		sscanf(buf, "%d", &wmt_pdm_module_enable);
+	}
+
+	ret = wmt_getsyspara("wmt.audio.i2s", buf, &varlen);
+	if (ret == 0) {
+		if (!strncmp(buf, "wm8994", strlen("wm8994")))
+			wmt_codec_wm8994 = 1;
+	}
+	memset(buf, 0, sizeof(buf));
+	ret = wmt_getsyspara("wmt.audio.codechdmi", buf, &varlen);
+	if (ret == 0) {
+		sscanf(buf, "%d", &i2s_data[0].HDMI_and_DAC0);
+		printk("<<<%s codec and hdmi:%d\n", __FUNCTION__, i2s_data[0].HDMI_and_DAC0);
+	}
+	
+	memset(buf, 0, sizeof(buf));
+	//0:i2sdacdat0(usually use i2s function!!) 1:i2sdacdat1 2:i2sdacdat2 3:i2sdacdat3
+	ret = wmt_getsyspara("wmt.audio.dacdat.gpio", buf, &varlen);
+	if (ret == 0) {
+		sscanf(buf, "%d", &i2sdacdat_gpio);
+		printk("<<<%s i2sdacdat_gpio:%d\n", __FUNCTION__, i2sdacdat_gpio);
+	}
+	
+	
+	memset(buf, 0, sizeof(buf));
+	ret = wmt_getsyspara("wmt.audio.interface.mode", buf, &varlen);
+	if (ret == 0) { // 0:i2s 1:left justified 2:right justified
+		sscanf(buf, "%d", &audio_interface_mode);
+		printk("<<<%s audio_interface_mode:%d\n", __FUNCTION__, audio_interface_mode);
+	}
+	
+	memset(buf, 0, sizeof(buf));
+	ret = wmt_getsyspara("wmt.audio.pa", buf, &varlen);
+	if (ret == 0) { // gpio nr:active---> 1:0
+		sscanf(buf, "%d:%d", &gpio_pa, &gpio_active);
+		
+	}
+	printk("%s audio pa:%d:%d\n", __FUNCTION__, gpio_pa, gpio_active);
+	if (gpio_pa >= 0)
+	{
+		ret = gpio_request(gpio_pa, "audio pa");
+		if (ret)
+		{
+			printk("%s gpio %d request error!\n", __func__, gpio_pa);
+			return ret;
+		}
+	#if 0
+		if (gpio_active)
+			wmt_gpio_setpull(gpio_pa, WMT_GPIO_PULL_DOWN);
+		else
+			wmt_gpio_setpull(gpio_pa, WMT_GPIO_PULL_UP);
+		msleep(10);	
+		gpio_direction_output(gpio_pa, !gpio_active); //???pop???
+		printk("%s shutdown pa!\n", __func__);
+		msleep(100);
+	#endif
+	
+		
+		init_timer(&pa_timer);
+		pa_timer.function = pa_timer_handler;
+	}
+	i2s_data->s[0].dma_cfg = dma_device_cfg_table[AHB1_AUD_DMA_REQ_1];
+	i2s_data->s[1].dma_cfg = dma_device_cfg_table[AHB1_AUD_DMA_REQ_0];
+	/*init i2s controller*/
+	i2s_data->i2s.init(0);
+	
+	spin_lock_init(&i2s_data->s[0].dma_lock);
+	spin_lock_init(&i2s_data->s[1].dma_lock);
+	/*init_timer(&i2s_data->delay_timer);
+	i2s_data->delay_timer.function = delay_timer_handler;*/
+
+	/* register with the ASoC layers */
+	ret = snd_soc_register_dai(&pdev->dev, &wmt_i2s_dai);
+	if (ret) {
+		pr_err("Failed to register DAI: %d\n", ret);
+		return ret;
+	}
+	
+	if (gpio_pa >= 0)
+	{
+		mod_timer(&pa_timer, jiffies+msecs_to_jiffies(10000));
+	}
+	return 0;
+}
+
+static int __devexit wmt_i2s_remove(struct platform_device *pdev)
+{
+	DBG_DETAIL();
+
+	snd_soc_unregister_dai(&pdev->dev);
+
+	return 0;
+}
+
+static void wmt_i2s_plat_shutdown(struct platform_device *pdev)
+{
+	printk("%s!\n", __func__);
+	if (gpio_pa >= 0)
+	{
+		gpio_direction_output(gpio_pa, !gpio_active);
+	}
+}
+
+static struct platform_driver wmt_i2s_driver = {
+	.probe  = wmt_i2s_probe,
+	.remove = __devexit_p(wmt_i2s_remove),
+	//.suspend = wmt_i2s_plat_suspend,
+	//.resume = wmt_i2s_plat_resume,
+	.shutdown = wmt_i2s_plat_shutdown,
+	.driver = {
+		.name = "wmt-i2s",
+		.owner = THIS_MODULE,
+	},
+};
+
+
+static int __init wmt_i2s_init(void)
+{
+	DBG_DETAIL();
+
+	return platform_driver_register(&wmt_i2s_driver);
+}
+
+static void __exit wmt_i2s_exit(void)
+{
+	DBG_DETAIL();
+	
+	platform_driver_unregister(&wmt_i2s_driver);
+}
+
+module_init(wmt_i2s_init);
+module_exit(wmt_i2s_exit);
+
+MODULE_AUTHOR("WonderMedia Technologies, Inc.");
+MODULE_DESCRIPTION("WMT [ALSA SoC] driver");
+MODULE_LICENSE("GPL");
+
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-controller.c b/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-controller.c
new file mode 100755
index 00000000..dccb82c6
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-controller.c
@@ -0,0 +1,419 @@
+/*++ 
+ * linux/sound/soc/wmt/wmt-pdm-if.c
+ * WonderMedia I2S audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <asm/irq.h>
+#include <linux/delay.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include <mach/hardware.h>
+#include <asm/dma.h>
+#include "wmt-soc.h"
+#include "wmt-pcm-controller.h"
+
+#define PCM_IS_MASTER_MODE
+#define NULL_DMA           ((dmach_t)(-1))
+
+static int wmt_pcm_module_enable = 0;
+extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen);
+
+static struct audio_stream_a wmt_pcm_controller_data[] = {
+	{
+		.id = "WMT PCM out",
+		.stream_id = SNDRV_PCM_STREAM_PLAYBACK,
+		.dmach = NULL_DMA,
+		.dma_dev = PCM_TX_DMA_REQ,
+		/*.dma_cfg = dma_device_cfg_table[I2S_TX_DMA_REQ],*/
+	},
+	{
+		.id = "WMT PCM in",
+		.stream_id = SNDRV_PCM_STREAM_CAPTURE,
+		.dmach = NULL_DMA,
+		.dma_dev = PCM_RX_DMA_REQ,
+		/*.dma_cfg = dma_device_cfg_table[I2S_RX_DMA_REQ],*/
+	},
+};
+
+struct wmt_pcm_controller
+{
+	int irq_no;
+	int pcm_clk_src;
+	int pcm_enable;
+};
+
+static struct wmt_pcm_controller wmt_pcm_controller;
+
+static irqreturn_t
+wmt_pcm_controller_irq_handler(int irq, void *dev_id)
+{	
+	if (PCMSR_VAL & PCMSR_TXUND) {
+		printk("-->PCMSR_TXUND\n");
+	}
+	else if (PCMSR_VAL & PCMSR_RXOVR) {
+		printk("-->PCMSR_RXOVR\n");
+	}
+		
+	PCMSR_VAL = 0x7F; //write clear all intr
+	return IRQ_HANDLED;
+}
+
+static void wmt_pcm_controller_enable(void)
+{
+	PCMCR_VAL |= (PCMCR_PCM_ENABLE | PCMCR_DMA_EN);
+}
+
+static void wmt_pcm_controller_disable(void)
+{
+	PCMCR_VAL &= ~(PCMCR_PCM_ENABLE | PCMCR_DMA_EN);
+}
+
+static int wmt_pcm_controller_init(void)
+{
+	wmt_pcm_controller.irq_no = IRQ_PCM;
+
+	// Before control pcm-module, enable pcm clock first
+	CLOCKEN(27);
+	
+	// set pcm_clk_source = 62464khz
+	//auto_pll_divisor(DEV_PCM0, CLK_ENABLE, 0, 0);
+	//auto_pll_divisor(DEV_PCM0, SET_PLLDIV, 1, 83333);
+
+	wmt_pcm_controller.pcm_clk_src = auto_pll_divisor(DEV_PCM0, GET_FREQ, 0, 0);
+	wmt_pcm_controller.pcm_clk_src /= 1000;
+	wmt_pcm_controller.pcm_enable = 0;
+	printk("wmt_pcm_controller_init: pcm_clk_src=%d \n\r", wmt_pcm_controller.pcm_clk_src);  
+
+	// Note: you should config PIN_SHARING_SEL_4BYTE_VAL if using pcm function!!! Loon mark at 2013/4/10
+	if (wmt_pcm_module_enable) {
+		printk("begin to configure pcm pin\n");
+		/* disable GPIO and Pull Down mode */
+		/* Bit1:I2SDACDAT1=PCMSYNC, Bit2:I2SDACDAT2=PCMCLK, Bit3:I2SDACDAT3=PCMIN, Bit4:I2SADCMCLK=PCMOUT */
+		GPIO_CTRL_GP10_I2S_BYTE_VAL &= ~(BIT1 | BIT2 | BIT3 | BIT4);
+		GPIO_CTRL_GP11_I2S_BYTE_VAL  &= ~(BIT1);
+		/*disable pull enable*/
+		PULL_EN_GP10_I2S_BYTE_VAL &= ~(BIT1 | BIT2 | BIT3 | BIT4);
+		PULL_EN_GP11_I2S_BYTE_VAL &= ~(BIT1);
+
+		/* set to pcm mode */
+		// select PCMMCLK[bit0], PCMSYNC[bit17:16], PCMCLK[19:18], PCMIN[20], PCMOUT[22:21]
+		//GPIO_PIN_SHARING_SEL_4BYTE_VAL &= ~(BIT21);
+		GPIO_PIN_SHARING_SEL_4BYTE_VAL |= (BIT15 | BIT16 | BIT17  | BIT18  | BIT19 |BIT20);
+	}
+
+	// set pcm control register
+	PCMCR_VAL |= (PCMCR_TXFF_RST | PCMCR_RXFF_RST);
+	//PCMCR_VAL |= 0x00880000;	// TX/RX Fifo Threshold A
+    PCMCR_VAL &= ~(PCMCR_BCLK_SEL);
+	PCMCR_VAL &= ~PCMCR_SLAVE;  // master mode
+	PCMCR_VAL |= PCMCR_SYNC_MODE;//short frame sync
+
+	// set pcm format register
+	PCMDFCR_VAL = 0;
+	PCMDFCR_VAL |= (PCMDFCR_WR_AL | PCMDFCR_TX_AL | PCMDFCR_RX_AL | PCMDFCR_RD_AL);
+	PCMDFCR_VAL |= (PCMDFCR_TX_SZ_14 | PCMDFCR_RX_SZ_14);
+	//PCMDFCR_VAL |= (PCMDFCR_TX_SZ_08 | PCMDFCR_RX_SZ_08);
+	
+	//
+	// request irq
+	//
+	/*if (request_irq(wmt_pcm_controller.irq_no, &wmt_pcm_controller_irq_handler, IRQF_DISABLED, "wmt_pcm_controller", NULL)){
+		printk(KERN_ERR "PCM_IRQ Request Failed!\n"); 
+	}
+	PCMCR_VAL |= (PCMCR_IRQ_EN | PCMCR_TXUND_EN | PCMCR_RXOVR_EN);
+	*/
+	printk("fun:%s,line:%d\n",__func__,__LINE__);
+	return 0 ;
+}
+
+
+static int wmt_pcm_controller_dai_startup(struct snd_pcm_substream *substream,
+											struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int stream_id = substream->pstr->stream;
+	struct audio_stream_a *s = &wmt_pcm_controller_data[0];
+	//dump_stack();
+	s[stream_id].stream = substream;
+	runtime->private_data = s;
+
+	return 0;
+}
+
+static void wmt_pcm_controller_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+		//dump_stack();
+}
+
+static int wmt_pcm_controller_dai_trigger(struct snd_pcm_substream *substream, int cmd,
+								struct snd_soc_dai *dai)
+{
+	int err = 0;
+	int stream_id = substream->pstr->stream;
+		//dump_stack();
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) {
+			PCMCR_VAL |= PCMCR_TXFF_RST; // reset txfifo
+			PCMDFCR_VAL |= PCMDFCR_TXFM_EN;
+		}
+		else if (stream_id == SNDRV_PCM_STREAM_CAPTURE) {
+			PCMCR_VAL |= PCMCR_RXFF_RST; // reset rxfifo
+			PCMDFCR_VAL |= PCMDFCR_RXFM_EN;
+		}
+		//wmt_pcm_controller_enable();
+		wmt_pcm_controller.pcm_enable++;
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) {
+			PCMDFCR_VAL &= ~PCMDFCR_TXFM_EN;
+		}
+		else if (stream_id == SNDRV_PCM_STREAM_CAPTURE) {
+			PCMDFCR_VAL &= ~PCMDFCR_RXFM_EN;
+		}
+		//wmt_pcm_controller_disable();
+		wmt_pcm_controller.pcm_enable--;
+		break;
+	default:
+		err = -EINVAL;
+		break;
+	}
+
+	if (wmt_pcm_controller.pcm_enable)
+		wmt_pcm_controller_enable();
+	else
+		wmt_pcm_controller_disable();
+
+	return err;
+}
+
+static int wmt_pcm_controller_dai_hw_params(struct snd_pcm_substream *substream,
+				    struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+		//dump_stack();
+	return 0;
+}
+
+static int wmt_pcm_controller_dai_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	unsigned int channel, byte;
+	int stream_id = substream->pstr->stream;
+
+	byte = (runtime->sample_bits)/8;
+	channel = runtime->channels;
+	
+	printk(KERN_INFO "wmt_pcm_controller_dai_prepare byte = %d, channels = %d\n", byte, runtime->channels);
+
+	/* format setting */
+	if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) {
+		/* little or big endian check */
+		switch (runtime->format) {
+		case SNDRV_PCM_FORMAT_S16_LE:
+			break;
+		default:
+			break;
+		}
+
+		/* channel number check */
+		switch (runtime->channels) {
+		case 1:
+			break;
+		case 2:
+			break;
+		default:
+			break;
+		}
+	}
+	else if (stream_id == SNDRV_PCM_STREAM_CAPTURE) {
+		/* little or big endian check */
+		switch (runtime->format) {
+		case SNDRV_PCM_FORMAT_S16_LE:
+			break;
+		default:	
+			break;
+		}
+
+		/* channel number check */
+		switch (runtime->channels) {
+		case 1:
+			break;
+		case 2:
+			break;
+		default:
+			break;	
+		}
+	}
+
+	switch (runtime->rate) {
+	case 16000:
+		PCMDIVR_VAL &= ~PCMCLK_DIV_MASK;
+		PCMDIVR_VAL |= (wmt_pcm_controller.pcm_clk_src / PCMCLK_256K);
+		break;
+	case 8000:
+		PCMDIVR_VAL &= ~PCMCLK_DIV_MASK;
+		PCMDIVR_VAL |= (wmt_pcm_controller.pcm_clk_src / PCMCLK_128K);
+		break;
+	default :
+		printk(KERN_ERR "not supported fs: %d \n\r", runtime->rate);
+		break;
+	}
+
+	return 0;
+}
+
+/*
+ * This must be called before _set_clkdiv and _set_sysclk since McBSP register
+ * cache is initialized here
+ */
+static int wmt_pcm_controller_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai,
+				      unsigned int fmt)
+{
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int wmt_pcm_controller_suspend(struct snd_soc_dai *cpu_dai)
+{
+	return 0;
+}
+
+static int wmt_pcm_controller_resume(struct snd_soc_dai *cpu_dai)
+{
+	int ret = wmt_pcm_controller_init();
+	if (ret) {
+		pr_err("Failed to init pcm module: %d\n", ret);
+		return ret;
+	}
+	return 0;
+}
+#else
+#define wmt_pcm_controller_suspend		NULL
+#define wmt_pcm_controller_resume		NULL
+#endif
+
+static struct snd_soc_dai_ops wmt_pcm_controller_dai_ops = {
+	.startup    = wmt_pcm_controller_dai_startup,
+	.prepare    = wmt_pcm_controller_dai_prepare,
+	.shutdown   = wmt_pcm_controller_dai_shutdown,
+	.trigger    = wmt_pcm_controller_dai_trigger,
+	.hw_params  = wmt_pcm_controller_dai_hw_params,
+	.set_fmt    = wmt_pcm_controller_dai_set_dai_fmt,
+};
+
+struct snd_soc_dai_driver wmt_pcm_controller_dai = {
+	.suspend = wmt_pcm_controller_suspend,
+	.resume = wmt_pcm_controller_resume,
+	.playback = {
+		.channels_min = 1,
+		.channels_max = 1,
+		.rates = SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_8000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+	.capture = {
+		.channels_min = 1,
+		.channels_max = 1,
+		.rates = SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_8000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+	.ops = &wmt_pcm_controller_dai_ops,
+};
+
+static int wmt_pcm_controller_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+	char buf[64];
+	int varlen = 64;
+
+	ret = wmt_getsyspara("wmt.audio.pcm", buf, &varlen);
+	if (ret == 0) {
+		sscanf(buf, "%d", &wmt_pcm_module_enable);
+	}
+
+	ret = wmt_pcm_controller_init();
+	if (ret) {
+		pr_err("Failed to init pcm module: %d\n", ret);
+		return ret;
+	}
+	
+	/* register with the ASoC layers */
+	ret = snd_soc_register_dai(&pdev->dev, &wmt_pcm_controller_dai);
+	if (ret) {
+		pr_err("Failed to register DAI: %d\n", ret);
+		return ret;
+	}
+	
+	wmt_pcm_controller_data[0].dma_cfg = dma_device_cfg_table[PCM_TX_DMA_REQ];
+	wmt_pcm_controller_data[1].dma_cfg = dma_device_cfg_table[PCM_RX_DMA_REQ];
+	
+	spin_lock_init(&wmt_pcm_controller_data[0].dma_lock);
+	spin_lock_init(&wmt_pcm_controller_data[1].dma_lock);
+	
+	return 0;
+}
+
+static int __devexit wmt_pcm_controller_remove(struct platform_device *pdev)
+{
+	snd_soc_unregister_dai(&pdev->dev);
+	return 0;
+}
+
+static struct platform_driver wmt_pcm_controller_driver = {
+	.probe  = wmt_pcm_controller_probe,
+	.remove = __devexit_p(wmt_pcm_controller_remove),
+	.driver = {
+		.name = "wmt-pcm-controller",
+		.owner = THIS_MODULE,
+	},
+};
+
+
+static int __init wmt_pcm_controller_module_init(void)
+{
+	return platform_driver_register(&wmt_pcm_controller_driver);
+}
+
+static void __exit wmt_pcm_controller_module_exit(void)
+{
+	platform_driver_unregister(&wmt_pcm_controller_driver);
+}
+
+module_init(wmt_pcm_controller_module_init);
+module_exit(wmt_pcm_controller_module_exit);
+
+MODULE_AUTHOR("WonderMedia Technologies, Inc.");
+MODULE_DESCRIPTION("WMT [ALSA SoC] driver");
+MODULE_LICENSE("GPL");
+
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-controller.h b/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-controller.h
new file mode 100755
index 00000000..58e94f23
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-controller.h
@@ -0,0 +1,122 @@
+/*++
+linux/include/asm-arm/arch-wmt/wmt_pcm.h
+
+Copyright (c) 2008  WonderMedia Technologies, Inc.
+
+This program is free software: you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software Foundation,
+either version 2 of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+You should have received a copy of the GNU General Public License along with
+this program.  If not, see <http://www.gnu.org/licenses/>.
+
+WonderMedia Technologies, Inc.
+10F, 529, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C.
+--*/
+
+/* Be sure that virtual mapping is defined right */
+
+#ifndef __WMT_PCM_CONTROLLER_H
+#define __WMT_PCM_CONTROLLER_H
+
+/*
+ * Address
+ */
+#define PCM_CR_ADDR                     (0x0000+PCM_BASE_ADDR)
+#define PCM_SR_ADDR                     (0x0004+PCM_BASE_ADDR)
+/* Reserved 0x0008 ~ 0x000F */
+#define PCM_DFCR_ADDR                   (0x0008+PCM_BASE_ADDR)
+#define PCM_DIVR_ADDR                   (0x000C+PCM_BASE_ADDR)
+/* Reserved 0x0020 ~ 0x007F */
+#define PCM_TFIFO_ADDR                  (0x0010+PCM_BASE_ADDR)
+#define PCM_TFIFO_1_ADDR                (0x0014+PCM_BASE_ADDR)
+
+#define PCM_RFIFO_ADDR                  (0x0030+PCM_BASE_ADDR)
+#define PCM_RFIFO_1_ADDR                (0x0034+PCM_BASE_ADDR)
+/* Reserved 0x0100 ~ 0xFFFF */
+
+/*
+ * Value
+ */
+#define PCMCR_VAL       (REG32_VAL(PCM_CR_ADDR))
+#define PCMSR_VAL       (REG32_VAL(PCM_SR_ADDR))
+#define PCMDFCR_VAL     (REG32_VAL(PCM_DFCR_ADDR))
+#define PCMDIVR_VAL     (REG32_VAL(PCM_DIVR_ADDR))
+#define GPIO_PIN_SHARING_SEL_4BYTE_VAL	(REG32_VAL(SHARE_PIN_SELEC))		
+
+#define PCMCLK_DIV_MASK			0x7FF
+#define PLL_B_DIVF_MASK			0xFF0000
+#define PLL_B_DIVR_MASK			0x1F00
+#define PLL_B_DIVQ_MASK			0x07
+#define OSC_25M					25000
+#define PCMCLK_128K				128
+#define PCMCLK_256K				256
+
+
+//=============================================================================
+//
+// PCMCR 	PCM Control Register
+//
+//=============================================================================
+#define PCMCR_PCM_ENABLE    (BIT0)		/* PCM Interface Enable	*/
+#define PCMCR_SLAVE         (BIT1)		/* Master/Slave Mode */
+
+#define PCMCR_BCLK_SEL      (BIT3)		/* PCM_CLK Select */
+#define PCMCR_SYNC_MODE     (BIT4)		/* Frame Sync Mode: 0-long, 1-Short */
+#define PCMCR_DMA_EN        (BIT5)		/* DMA Enable */
+#define PCMCR_SYNC_OFF      (BIT6)		/* Sync Disable */
+#define PCMCR_MUTE          (BIT7)		/* Mute Enable */
+#define PCMCR_IRQ_EN        (BIT8)		/* Interrupt Enable */
+#define PCMCR_DMA_IRQ_SEL   (BIT9)		/* Threshold DMA/IRQ Select */
+#define PCMCR_RXFE_EN       (BIT10)		/* RX FIFO Empty Interrupt Enable */
+#define PCMCR_RXFF_EN       (BIT11)		/* RX FIFO Full Interrupt Enable */
+#define PCMCR_RXOVR_EN      (BIT12)		/* RX FIFO Overrun Interrupt Enable */
+#define PCMCR_TXFE_EN       (BIT13)		/* TX FIFO Empty Interrupt Enable */
+#define PCMCR_TXUND_EN      (BIT14)		/* TX FIFO Underrun Interrupt Enable */
+
+#define PCMCR_TXFF_RST      (BIT24)		/* TX FIFO Reset */
+#define PCMCR_RXFF_RST      (BIT25)		/* RX FIFO Reset */
+
+
+//=============================================================================
+//
+// PCMSR 	PCM Status Register
+//
+//=============================================================================
+#define PCMSR_RXFE          (BIT0)		/* RX FIFO Empty Status */
+#define PCMSR_RXFF          (BIT1)		/* RX FIFO Full Status */
+#define PCMSR_RXOVR         (BIT2)		/* RX FIFO Overrun Status */
+#define PCMSR_TXFE          (BIT3)		/* TX FIFO Empty Status */
+#define PCMSR_TXUND         (BIT4)		/* TX FIFO Underrun Status */
+#define PCMSR_TXFAE         (BIT5)		/* TX FIFO Almost Empty Status */
+#define PCMSR_RXFAF         (BIT6)		/* RX FIFO Almost Full Status */
+
+
+//=============================================================================
+//
+// PCMDFCR 	PCM Data Format Control Register
+//
+//=============================================================================
+#define PCMDFCR_TXFM_EN     (BIT0)		/* TX Data Format Enable */
+#define PCMDFCR_TX_SZ_13    0x00		/* TX Input Data Size 13 bits wide */
+#define PCMDFCR_TX_SZ_14    0x02		/* TX Input Data Size 14 bits wide */
+#define PCMDFCR_TX_SZ_08    0x04		/* TX Input Data Size 8 bits wide */
+#define PCMDFCR_WR_AL       (BIT3)		/* TX Write Data Alignment Setup */
+#define PCMDFCR_TX_AL       (BIT4)		/* PCM_OUT Alignment Control */
+#define PCMDFCR_TX_PAD      (BIT5)		/* PCM_OUT Padding Control */
+#define PCMDFCR_TX_MSB      (BIT6)		/* PCM_OUT First Bit Select */
+
+#define PCMDFCR_RXFM_EN     (BIT8)		/* RX Data Format Enable */
+#define PCMDFCR_RX_SZ_13    0x0000		/* RCM_IN Data Size 13 bits wide */
+#define PCMDFCR_RX_SZ_14    0x0200		/* RCM_IN Data Size 14 bits wide */
+#define PCMDFCR_RX_SZ_08    0x0400		/* RCM_IN Data Size 8 bits wide */
+#define PCMDFCR_RX_AL       (BIT11)		/* RCM_IN Data Alignment Setup */
+#define PCMDFCR_RD_AL       (BIT12)		/* PX FIFO Alignment Control */
+#define PCMDFCR_RX_PAD      (BIT13)		/* PX FIFO Padding Control */
+#define PCMDFCR_RX_MSB      (BIT14)		/* RX FIFO First Bit Select */	
+
+
+#endif /* __WMT_PCM_CONTROLLER_H */
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-dma.c b/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-dma.c
new file mode 100755
index 00000000..27a66bea
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-dma.c
@@ -0,0 +1,597 @@
+/*++ 
+ * linux/sound/soc/wmt/wmt-pcm.c
+ * WonderMedia audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <linux/dma-mapping.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <linux/delay.h>
+
+#include <asm/dma.h>
+#include "wmt-pcm-dma.h"
+#include "wmt-soc.h"
+
+#define NULL_DMA                ((dmach_t)(-1))
+
+/*
+ * Debug
+ */
+#define AUDIO_NAME "WMT_PCM_DMA"
+//#define WMT_PCM_DEBUG 1
+//#define WMT_PCM_DEBUG_DETAIL 1
+
+#ifdef WMT_PCM_DEBUG
+#define DPRINTK(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
+#else
+#define DPRINTK(format, arg...) do {} while (0)
+#endif
+
+#ifdef WMT_PCM_DEBUG_DETAIL
+#define DBG_DETAIL(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": [%s]" format "\n" , __FUNCTION__, ## arg)
+#else
+#define DBG_DETAIL(format, arg...) do {} while (0)
+#endif
+
+#define err(format, arg...) \
+	printk(KERN_ERR AUDIO_NAME ": " format "\n" , ## arg)
+#define info(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
+#define warn(format, arg...) \
+	printk(KERN_WARNING AUDIO_NAME ": " format "\n" , ## arg)
+
+static const struct snd_pcm_hardware wmt_pcm_dma_hardware = {
+	.info			= SNDRV_PCM_INFO_MMAP |
+				  SNDRV_PCM_INFO_MMAP_VALID |
+				  SNDRV_PCM_INFO_INTERLEAVED |
+				  SNDRV_PCM_INFO_PAUSE |
+				  SNDRV_PCM_INFO_RESUME,
+	.formats		= SNDRV_PCM_FMTBIT_S16_LE,
+	.rate_min		= 8000,
+	.rate_max		= 16000,
+	.period_bytes_min	= 32,
+	.period_bytes_max	= 4 * 1024,
+	.periods_min		= 1,
+	.periods_max		= 32,
+	.buffer_bytes_max	= 16 * 1024,
+};
+
+static int audio_dma_free(struct audio_stream_a *s);
+
+/*
+ *  Main dma routine, requests dma according where you are in main alsa buffer
+ */
+static void audio_process_dma(struct audio_stream_a *s)
+{
+	struct snd_pcm_substream *substream = s->stream;
+	struct snd_pcm_runtime *runtime;
+	unsigned int dma_size;
+	unsigned int offset;
+	dma_addr_t dma_base;
+	int ret = 0;
+	
+	DPRINTK("s: %d, dmach: %d. active: %d", (int)s, s->dmach, s->active);
+	
+	if (s->active) {
+		substream = s->stream;
+		runtime = substream->runtime;
+		dma_size = frames_to_bytes(runtime, runtime->period_size);
+
+		if (dma_size > MAX_DMA_SIZE)
+			dma_size = CUT_DMA_SIZE;
+		offset = dma_size * s->period;
+
+		dma_base = __virt_to_phys((dma_addr_t)runtime->dma_area);
+
+		if ((runtime->channels == 2 || runtime->channels == 1) && 
+				(runtime->format == SNDRV_PCM_FORMAT_S16_LE)) {
+			ret = wmt_start_dma(s->dmach, runtime->dma_addr + offset, 0, dma_size);
+		}
+
+		if (ret) {
+			printk(KERN_ERR "audio_process_dma: cannot queue DMA buffer (%i) \n", ret);
+			return;
+		}
+
+		s->period++;
+		s->period %= runtime->periods;
+		s->periods++;
+		s->offset = offset;
+	}
+}
+
+/* 
+ *  This is called when dma IRQ occurs at the end of each transmited block
+ */
+static void audio_dma_callback(void *data)
+{
+	struct audio_stream_a *s = data;
+	
+	//DBG_DETAIL();
+	
+	/* 
+	 * If we are getting a callback for an active stream then we inform
+	 * the PCM middle layer we've finished a period
+	 */
+	if (s->active)
+		snd_pcm_period_elapsed(s->stream);
+
+	spin_lock(&s->dma_lock);
+	if (s->periods > 0) 
+		s->periods--;
+	
+	audio_process_dma(s);
+	spin_unlock(&s->dma_lock);
+}
+
+static int audio_dma_request(struct audio_stream_a *s, void (*callback) (void *))
+{
+	int err;
+	err = 0;
+
+	DBG_DETAIL();
+	
+	//DPRINTK("s pointer: %d, dmach: %d, id: %s, dma_dev: %d", (int)s, s->dmach, s->id, s->dma_dev);
+	err = wmt_request_dma(&s->dmach, s->id, s->dma_dev, callback, s);
+	if (err < 0)
+		printk(KERN_ERR "Unable to grab audio dma 0x%x\n", s->dmach);
+	
+	return err;
+}
+
+static void audio_setup_dma(struct audio_stream_a *s, int stream_id)
+{
+	struct snd_pcm_runtime *runtime = s->stream->runtime;
+
+	if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) {
+		/* From memory to device */
+		switch (runtime->channels * runtime->format) {
+		case 1:
+			s->dma_cfg.DefaultCCR = PCM_TX_DMA_8BITS_CFG;     /* setup 1 bytes*/
+			break ;
+		case 2:
+			s->dma_cfg.DefaultCCR = PCM_TX_DMA_16BITS_CFG;    /* setup 2 bytes*/
+			break ;
+		case 4:
+			s->dma_cfg.DefaultCCR = PCM_TX_DMA_32BITS_CFG;    /* setup 4 byte*/
+			break ;
+		}
+	}
+	else {
+		/* From device to memory */
+		switch (runtime->channels * runtime->format) {
+		case 1:
+			s->dma_cfg.DefaultCCR = PCM_RX_DMA_8BITS_CFG ;     /* setup 1 bytes*/
+			break ;
+		case 2:
+			s->dma_cfg.DefaultCCR = PCM_RX_DMA_16BITS_CFG ;    /* setup 2 bytes*/
+			break ;
+		case 4:
+			s->dma_cfg.DefaultCCR = PCM_RX_DMA_32BITS_CFG ;    /* setup 4 byte*/
+			break ;
+		}
+	}
+
+	s->dma_cfg.ChunkSize = 1;
+	
+	wmt_setup_dma(s->dmach, s->dma_cfg) ;
+}
+
+static int audio_dma_free(struct audio_stream_a *s)
+{
+	int err = 0;
+	DBG_DETAIL();
+	wmt_free_dma(s->dmach);
+	s->dmach = NULL_DMA;
+	return err;
+}
+
+/*
+ * this stops the dma and clears the dma ptrs
+ */
+static void audio_stop_dma(struct audio_stream_a *s)
+{
+	//dump_stack();
+	unsigned long flags;
+	DBG_DETAIL();
+	local_irq_save(flags);
+	s->active = 0;
+	s->period = 0;
+	s->periods = 0;
+	s->offset = 0;
+	wmt_stop_dma(s->dmach);
+	wmt_clear_dma(s->dmach);
+	local_irq_restore(flags);
+}
+
+/* this may get called several times by oss emulation */
+static int wmt_pcm_dma_hw_params(struct snd_pcm_substream *substream,
+			      struct snd_pcm_hw_params *params)
+{
+	//dump_stack();
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int err = 0;
+	DBG_DETAIL();
+	snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
+	runtime->dma_bytes = params_buffer_bytes(params);
+	return err;
+}
+
+static int wmt_pcm_dma_hw_free(struct snd_pcm_substream *substream)
+{
+	DBG_DETAIL();
+	snd_pcm_set_runtime_buffer(substream, NULL);
+	return 0;
+}
+
+static int wmt_pcm_dma_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int stream_id = substream->pstr->stream;
+	struct audio_stream_a *prtd = runtime->private_data;
+	struct audio_stream_a *s = &prtd[stream_id];
+	//dump_stack();
+	DBG_DETAIL();
+
+	s->period = 0;
+	s->periods = 0;
+	s->offset = 0;
+	audio_setup_dma(s, stream_id);
+
+	return 0;
+}
+
+static int wmt_pcm_dma_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int stream_id = substream->pstr->stream;
+	struct audio_stream_a *prtd = runtime->private_data;
+	struct audio_stream_a *s = &prtd[stream_id];
+	int ret = 0;
+
+	DPRINTK("Enter, cmd=%d", cmd);
+	//dump_stack();
+	spin_lock(&s->dma_lock);
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		s->active = 1;
+		audio_process_dma(s);
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		s->active = 0;
+		audio_stop_dma(s);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+	spin_unlock(&s->dma_lock);
+
+	return ret;
+}
+
+static snd_pcm_uframes_t wmt_pcm_dma_pointer(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct audio_stream_a *prtd = runtime->private_data;
+	int stream_id = substream->pstr->stream;
+	struct audio_stream_a *s = &prtd[stream_id];
+	dma_addr_t ptr;
+	snd_pcm_uframes_t offset = 0;
+	//dump_stack();
+	ptr = wmt_get_dma_pos(s->dmach);
+
+	if ((runtime->channels == 1 || runtime->channels == 2) && (runtime->format == SNDRV_PCM_FORMAT_S16_LE)) {
+		offset = bytes_to_frames(runtime, ptr - runtime->dma_addr);
+	}
+
+	if (offset >= runtime->buffer_size)
+		offset = 0;
+
+	spin_lock(&s->dma_lock);
+
+	if (s->periods > 0 && s->periods < 2) {
+		if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) {
+			if (snd_pcm_playback_hw_avail(runtime) >= 2 * runtime->period_size)
+				audio_process_dma(s);
+		}
+		else {
+			if (snd_pcm_capture_hw_avail(runtime) >= 2* runtime->period_size)
+				audio_process_dma(s);
+		}
+		
+	}
+	spin_unlock(&s->dma_lock);
+	
+	return offset;
+}
+
+static int wmt_pcm_dma_open(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct audio_stream_a *s = runtime->private_data;
+	int ret;
+
+	DBG_DETAIL();
+	
+	if (!cpu_dai->active) {
+		audio_dma_request(&s[0], audio_dma_callback);
+		audio_dma_request(&s[1], audio_dma_callback);
+	}
+	//dump_stack();
+	snd_soc_set_runtime_hwparams(substream, &wmt_pcm_dma_hardware);
+
+	/* Ensure that buffer size is a multiple of period size */
+	ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+	if (ret < 0)
+		goto out;
+
+out:
+	return ret;
+}
+
+static int wmt_pcm_dma_close(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct audio_stream_a *s = runtime->private_data;
+
+	DBG_DETAIL();
+	//dump_stack();
+	if (!cpu_dai->active) {
+		audio_dma_free(&s[0]);
+		audio_dma_free(&s[1]);
+	}
+
+	return 0;
+}
+
+static int wmt_pcm_dma_mmap(struct snd_pcm_substream *substream,
+	struct vm_area_struct *vma)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	
+	DBG_DETAIL();
+	//dump_stack();
+	return dma_mmap_writecombine(substream->pcm->card->dev, vma,
+				     runtime->dma_area,
+				     runtime->dma_addr,
+				     runtime->dma_bytes);
+}
+
+static struct snd_pcm_ops wmt_pcm_dma_ops = {
+	.open		= wmt_pcm_dma_open,
+	.close		= wmt_pcm_dma_close,
+	.ioctl		= snd_pcm_lib_ioctl,
+	.hw_params	= wmt_pcm_dma_hw_params,
+	.hw_free	= wmt_pcm_dma_hw_free,
+	.prepare	= wmt_pcm_dma_prepare,
+	.trigger	= wmt_pcm_dma_trigger,
+	.pointer	= wmt_pcm_dma_pointer,
+	.mmap		= wmt_pcm_dma_mmap,
+};
+
+static u64 wmt_pcm_dma_dmamask = DMA_BIT_MASK(32);
+
+static int wmt_pcm_dma_preallocate_dma_buffer(struct snd_pcm *pcm,
+	int stream)
+{
+	struct snd_pcm_substream *substream = pcm->streams[stream].substream;
+	struct snd_dma_buffer *buf = &substream->dma_buffer;
+	size_t size = wmt_pcm_dma_hardware.buffer_bytes_max;
+
+	DBG_DETAIL();
+	
+	buf->dev.type = SNDRV_DMA_TYPE_DEV;
+	buf->dev.dev = pcm->card->dev;
+	buf->private_data = NULL;
+	buf->area = dma_alloc_writecombine(pcm->card->dev, size,
+					&buf->addr, GFP_KERNEL);
+	
+	DPRINTK("buf_area = %x, buf_addr = %x", (unsigned int)buf->area, buf->addr);
+	if (!buf->area)
+		return -ENOMEM;
+
+	buf->bytes = size;
+	
+	return 0;
+}
+
+static void wmt_pcm_dma_free_dma_buffers(struct snd_pcm *pcm)
+{
+	struct snd_pcm_substream *substream;
+	struct snd_dma_buffer *buf;
+	int stream;
+
+	DBG_DETAIL();
+	
+	for (stream = 0; stream < 2; stream++) {
+		substream = pcm->streams[stream].substream;
+		if (!substream)
+			continue;
+
+		buf = &substream->dma_buffer;
+		if (!buf->area)
+			continue;
+
+		dma_free_writecombine(pcm->card->dev, buf->bytes, buf->area, buf->addr);
+		
+		buf->area = NULL;
+	}
+}
+
+static int wmt_pcm_dma_new(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_card *card = rtd->card->snd_card;
+	struct snd_pcm *pcm = rtd->pcm;
+	int ret = 0;
+
+	DBG_DETAIL();
+	
+	if (!card->dev->dma_mask)
+		card->dev->dma_mask = &wmt_pcm_dma_dmamask;
+	if (!card->dev->coherent_dma_mask)
+		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+
+  if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
+		ret = wmt_pcm_dma_preallocate_dma_buffer(pcm,
+			SNDRV_PCM_STREAM_PLAYBACK);
+		if (ret)
+			goto out;
+	}
+
+	if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
+		ret = wmt_pcm_dma_preallocate_dma_buffer(pcm,
+			SNDRV_PCM_STREAM_CAPTURE);
+		if (ret)
+			goto out;
+	}
+	
+out:
+	/* free preallocated buffers in case of error */
+	if (ret)
+		wmt_pcm_dma_free_dma_buffers(pcm);
+	
+	return ret;
+}
+
+#ifdef CONFIG_PM
+static int wmt_pcm_dma_suspend(struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = dai->runtime;
+	struct audio_stream_a *prtd;
+	struct audio_stream_a *s;
+
+	DBG_DETAIL();
+	
+	if (!runtime)
+		return 0;
+
+	prtd = runtime->private_data;
+	s = &prtd[SNDRV_PCM_STREAM_PLAYBACK];
+
+	if (s->active) {
+		udelay(5);
+		wmt_stop_dma(s->dmach);
+		/*
+		wmt_clear_dma(s->dmach);
+		audio_stop_dma(s);
+		*/
+	}
+
+	s = &prtd[SNDRV_PCM_STREAM_CAPTURE];
+
+	if (s->active) {
+		udelay(5);
+		wmt_stop_dma(s->dmach);
+		/*
+		wmt_clear_dma(s->dmach);
+		audio_stop_dma(s);
+		*/
+	}
+
+	return 0;
+}
+
+static int wmt_pcm_dma_resume(struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = dai->runtime;
+	struct audio_stream_a *prtd;
+	struct audio_stream_a *s;
+
+	DBG_DETAIL();
+	
+	if (!runtime)
+		return 0;
+	
+	prtd = runtime->private_data;
+	s = &prtd[SNDRV_PCM_STREAM_PLAYBACK];
+	audio_setup_dma(s, SNDRV_PCM_STREAM_PLAYBACK);
+	
+	if (s->active) {
+		wmt_resume_dma(s->dmach) ;
+	}
+	
+	s = &prtd[SNDRV_PCM_STREAM_CAPTURE];
+	audio_setup_dma(s, SNDRV_PCM_STREAM_CAPTURE);
+
+	if (s->active) {
+		wmt_resume_dma(s->dmach) ;
+	}
+
+	return 0;
+}
+#else
+#define wmt_pcm_dma_suspend NULL
+#define wmt_pcm_dma_resume  NULL
+#endif
+
+static struct snd_soc_platform_driver wmt_soc_platform = {
+	.ops        = &wmt_pcm_dma_ops,
+	.pcm_new    = wmt_pcm_dma_new,
+	.pcm_free   = wmt_pcm_dma_free_dma_buffers,
+	.suspend    = wmt_pcm_dma_suspend,
+	.resume     = wmt_pcm_dma_resume,
+};
+
+static int __devinit wmt_pcm_dma_platform_probe(struct platform_device *pdev)
+{
+	DBG_DETAIL();
+	return snd_soc_register_platform(&pdev->dev, &wmt_soc_platform);
+}
+
+static int __devexit wmt_pcm_dma_platform_remove(struct platform_device *pdev)
+{
+	DBG_DETAIL();
+	snd_soc_unregister_platform(&pdev->dev);
+	return 0;
+}
+
+static struct platform_driver wmt_pcm_dma_driver = {
+	.driver = {
+			.name = "wmt-pcm-dma",
+			.owner = THIS_MODULE,
+	},
+
+	.probe = wmt_pcm_dma_platform_probe,
+	.remove = __devexit_p(wmt_pcm_dma_platform_remove),
+};
+
+module_platform_driver(wmt_pcm_dma_driver);
+
+MODULE_AUTHOR("WonderMedia Technologies, Inc.");
+MODULE_DESCRIPTION("WMT [ALSA SoC/pcm dma] driver");
+MODULE_LICENSE("GPL");
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-dma.h b/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-dma.h
new file mode 100755
index 00000000..88f246b2
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm-dma.h
@@ -0,0 +1,35 @@
+/*++ 
+ * linux/sound/soc/wmt/wmt-pcm.h
+ * WonderMedia audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+
+#ifndef __WMT_PCM_DMA_H__
+#define __WMT_PCM_DMA_H__
+
+struct wmt_pcm_dma_data {
+	char		*name;		/* stream identifier */
+	int		dma_req;	/* DMA request line */
+	unsigned long	port_addr;	/* transmit/receive register */
+	struct dma_device_cfg_s *dma_cfg;
+};
+
+#endif /* __WMT_PDM_PCM_H__ */
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm.c b/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm.c
new file mode 100755
index 00000000..848ea5a1
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm.c
@@ -0,0 +1,767 @@
+/*++ 
+ * linux/sound/soc/wmt/wmt-pcm.c
+ * WonderMedia audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <linux/dma-mapping.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <linux/delay.h>
+
+#include <asm/dma.h>
+#include "wmt-pcm.h"
+#include "wmt-soc.h"
+
+#define NULL_DMA                ((dmach_t)(-1))
+
+#define AUDIO_NAME "WMT_PCM"
+//#define WMT_PCM_DEBUG 1
+//#define WMT_PCM_DEBUG_DETAIL 1
+
+#ifdef WMT_PCM_DEBUG
+#define DPRINTK(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
+#else
+#define DPRINTK(format, arg...) do {} while (0)
+#endif
+
+#ifdef WMT_PCM_DEBUG_DETAIL
+#define DBG_DETAIL(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": [%s]" format "\n" , __FUNCTION__, ## arg)
+#else
+#define DBG_DETAIL(format, arg...) do {} while (0)
+#endif
+
+#define err(format, arg...) \
+	printk(KERN_ERR AUDIO_NAME ": " format "\n" , ## arg)
+#define info(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
+#define warn(format, arg...) \
+	printk(KERN_WARNING AUDIO_NAME ": " format "\n" , ## arg)
+
+static const struct snd_pcm_hardware wmt_pcm_hardware = {
+	.info           = SNDRV_PCM_INFO_MMAP |
+	                  SNDRV_PCM_INFO_MMAP_VALID |
+	                  SNDRV_PCM_INFO_INTERLEAVED |
+	                  SNDRV_PCM_INFO_PAUSE |
+	                  SNDRV_PCM_INFO_RESUME,
+	.formats        = SNDRV_PCM_FMTBIT_S16_LE,
+	.rate_min       = 8000,
+	.rate_max       = 96000,
+	.period_bytes_min = 4*1024,//32,
+	.period_bytes_max = 8*1024,//4 * 1024,
+	.periods_min      = 1,//2,
+	.periods_max      = 16,//128,
+	.buffer_bytes_max = 64 * 1024,
+	.fifo_size	= 32,//
+};
+
+struct wmt_runtime_data {
+	spinlock_t			lock;
+	struct wmt_pcm_dma_data	*dma_data;
+	int				dma_ch;
+	int				period_index;
+};
+
+struct snd_wfd_buffer {
+	struct device *dev;
+	unsigned char *area;	/* virtual pointer */
+	dma_addr_t addr;		/* physical address */
+	size_t bytes;			/* buffer size in bytes */
+	size_t valuable_sz;		/* valuable size in wfd buffer */
+	unsigned char *wr_ptr;
+	unsigned char *rd_ptr;
+	int enable;
+};
+static struct snd_wfd_buffer wfd_audbuf;
+
+static int audio_dma_free(struct audio_stream_a *s);
+
+dmach_t pcm_out_dmach = 0xFF;
+struct dma_device_cfg_s *pcm_out_dma_cfg = NULL;
+
+void wmt_pcm_wfd_start(void)
+{
+	/* allocate buffer for WFD support */
+	wfd_audbuf.area = dma_alloc_writecombine(wfd_audbuf.dev, wfd_audbuf.bytes,
+					   &wfd_audbuf.addr, GFP_KERNEL);
+
+	if (!wfd_audbuf.area) {
+		err("WFD_Aud allocate buffer fail");
+	}
+	else {
+		info("*WFD_Aud enable");
+		wfd_audbuf.enable = 1;
+	}
+		
+	memset(wfd_audbuf.area, 0x0, wfd_audbuf.bytes);
+	//info("&wfd_audbuf.addr=0x%x wfd_audbuf.addr=0x%x", &wfd_audbuf.addr, (unsigned int)wfd_audbuf.addr);
+}
+EXPORT_SYMBOL(wmt_pcm_wfd_start);
+
+unsigned int wmt_pcm_wfd_get_buf(void)
+{
+	wfd_audbuf.valuable_sz = 0;
+	wfd_audbuf.wr_ptr = wfd_audbuf.rd_ptr = wfd_audbuf.area;
+	return (unsigned int)&wfd_audbuf.addr;
+}
+EXPORT_SYMBOL(wmt_pcm_wfd_get_buf);
+
+void wmt_pcm_wfd_stop(void)
+{
+	wfd_audbuf.wr_ptr = wfd_audbuf.area;
+	wfd_audbuf.enable = 0;
+
+	dma_free_writecombine(wfd_audbuf.dev, wfd_audbuf.bytes,
+			      wfd_audbuf.area, wfd_audbuf.addr);
+	info("*WFD_Aud disable");
+	return;
+}
+EXPORT_SYMBOL(wmt_pcm_wfd_stop);
+
+int wmt_pcm_wfd_get_strm(WFDStrmInfo_t *info)
+{
+	if ((info->req_sz > wfd_audbuf.bytes) || (!wfd_audbuf.valuable_sz)) {
+		//info("WFD read size=%d, Too Large!", info->req_sz);
+		info->avail_sz = 0;
+		return (int)info;
+	}
+	else if (wfd_audbuf.valuable_sz > info->req_sz) {
+		info->avail_sz = info->req_sz;
+		wfd_audbuf.valuable_sz -= info->req_sz;
+	}
+	else {
+		info->avail_sz = wfd_audbuf.valuable_sz;
+		wfd_audbuf.valuable_sz = 0;
+	}
+	
+	info->buf_offset = wfd_audbuf.rd_ptr - wfd_audbuf.area;
+	wfd_audbuf.rd_ptr += info->avail_sz;
+	
+	if (wfd_audbuf.rd_ptr >= wfd_audbuf.area + wfd_audbuf.bytes)
+		wfd_audbuf.rd_ptr = wfd_audbuf.rd_ptr - wfd_audbuf.bytes;
+	
+	return (int)info;
+}
+EXPORT_SYMBOL(wmt_pcm_wfd_get_strm);
+
+void wmt_pcm_wfd_update(char *src_buf, unsigned int chunksize)
+{
+	//info("wmt_pcm_wfd_update, 0x%x", src_buf[1024]);
+	memcpy(wfd_audbuf.wr_ptr, src_buf, chunksize);
+	wfd_audbuf.wr_ptr += chunksize;
+					
+	if (wfd_audbuf.wr_ptr == wfd_audbuf.area + wfd_audbuf.bytes)
+		wfd_audbuf.wr_ptr = wfd_audbuf.area;
+
+	wfd_audbuf.valuable_sz += chunksize;
+	if (wfd_audbuf.valuable_sz >= wfd_audbuf.bytes) {
+		wfd_audbuf.valuable_sz = wfd_audbuf.bytes;
+		wfd_audbuf.rd_ptr = wfd_audbuf.wr_ptr;
+	}	
+}
+
+/*
+ *  Main dma routine, requests dma according where you are in main alsa buffer
+ */
+static void audio_process_dma(struct audio_stream_a *s)
+{
+	struct snd_pcm_substream *substream = s->stream;
+	struct snd_pcm_runtime *runtime;
+	unsigned int dma_size;
+	unsigned int offset;
+	dma_addr_t dma_base;
+	int ret = 0;
+	
+	//DBG_DETAIL();
+	DPRINTK("s: %d, dmach: %d. active: %d", (int)s, s->dmach, s->active);
+	
+	if (s->active) {
+		substream = s->stream;
+		runtime = substream->runtime;
+		dma_size = frames_to_bytes(runtime, runtime->period_size);
+		/*DPRINTK("frame_bits=%d, period_size=%d, dma_size 1=%d",
+			runtime->frame_bits, (int)runtime->period_size, dma_size);*/
+		if (dma_size > MAX_DMA_SIZE)
+			dma_size = CUT_DMA_SIZE;
+		offset = dma_size * s->period;
+
+		/*DPRINTK("offset: 0x%x, ->dma_area: 0x%x, ->dma_addr: 0x%x, final addr: 0x%x",
+			offset, (unsigned int)runtime->dma_area, runtime->dma_addr, runtime->dma_addr+offset);*/
+
+		dma_base = __virt_to_phys((dma_addr_t)runtime->dma_area);
+
+		//DPRINTK("dma address: 0x%x", dma_base+offset);
+		/*DPRINTK("hw_ptr_interrupt: 0x%x, state: %d, hwptr: %u, applptr: %u, avail_min: %u", 
+			(unsigned int)runtime->hw_ptr_interrupt, runtime->status->state, (unsigned int)runtime->status->hw_ptr,
+			(unsigned int)runtime->control->appl_ptr, (unsigned int)runtime->control->avail_min);*/
+		//DPRINTK("dmach: %u, dma_addr: %x, dma_size: %u", s->dmach, dma_base+offset, dma_size);
+
+		if ((runtime->channels == 2 || runtime->channels == 1) && 
+				(runtime->format == SNDRV_PCM_FORMAT_S16_LE)) {
+			ret = wmt_start_dma(s->dmach, runtime->dma_addr + offset, 0, dma_size);
+		}
+
+		if (ret) {
+			printk(KERN_ERR  "audio_process_dma: cannot queue DMA buffer (%i) \n", ret);
+			return;
+		}
+
+		s->period++;
+		s->period %= runtime->periods;
+		s->periods++;
+		s->offset = offset;
+	}
+}
+
+/* 
+ *  This is called when dma IRQ occurs at the end of each transmited block
+ */
+static void audio_dma_callback(void *data)
+{
+	struct audio_stream_a *s = data;
+	struct snd_pcm_substream *substream;
+	struct snd_pcm_runtime *runtime;
+	unsigned int dma_size;
+	unsigned int offset;
+	int stream_id;
+	
+	//DBG_DETAIL();
+
+	substream = s->stream;
+	runtime = substream->runtime;
+	dma_size = frames_to_bytes(runtime, runtime->period_size);
+	stream_id = substream->pstr->stream;
+	
+	if (s->period > 0)
+		offset = dma_size * (s->period - 1);
+	else
+		offset = dma_size * (s->periods - 1);
+
+	if ((stream_id == SNDRV_PCM_STREAM_PLAYBACK) && (wfd_audbuf.enable)) {
+		wmt_pcm_wfd_update(runtime->dma_area + offset, dma_size);
+	}
+	
+	/* 
+	 * If we are getting a callback for an active stream then we inform
+	 * the PCM middle layer we've finished a period
+	 */
+	if (s->active)
+		snd_pcm_period_elapsed(s->stream);
+
+	spin_lock(&s->dma_lock);
+	if (s->periods > 0) 
+		s->periods--;
+	
+	audio_process_dma(s);
+	spin_unlock(&s->dma_lock);
+}
+
+static int audio_dma_request(struct audio_stream_a *s, void (*callback) (void *))
+{
+	int err;
+	err = 0;
+
+	DBG_DETAIL();
+	
+	//DPRINTK("s pointer: %d, dmach: %d, id: %s, dma_dev: %d", (int)s, s->dmach, s->id, s->dma_dev);
+	err = wmt_request_dma(&s->dmach, s->id, s->dma_dev, callback, s);
+	if (err < 0)
+		printk(KERN_ERR "Unable to grab audio dma 0x%x\n", s->dmach);
+	
+	if (!strcmp(s->id, "WMT I2S out")) {
+		pcm_out_dmach =  s->dmach;
+	}
+	return err;
+}
+
+static void audio_setup_dma(struct audio_stream_a *s, int stream_id)
+{
+	struct snd_pcm_runtime *runtime = s->stream->runtime;
+
+	if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) {
+		/* From memory to device */
+		switch (runtime->channels * runtime->format) {
+		#if 0 //comment 2014-1-3 tinyplay mono pattern abnormal 
+		case 1:
+			s->dma_cfg.DefaultCCR = I2S_TX_DMA_8BITS_CFG;     /* setup 1 bytes*/
+			break ;
+		case 2:
+			s->dma_cfg.DefaultCCR = I2S_TX_DMA_16BITS_CFG;    /* setup 2 bytes*/
+			break ;
+		case 4:
+		#endif
+		default :
+			s->dma_cfg.DefaultCCR = I2S_TX_DMA_32BITS_CFG;    /* setup 4 byte*/
+			break ;
+		}
+	}
+	else {
+		/* From device to memory */
+		switch (runtime->channels * runtime->format) {
+		case 1:
+			s->dma_cfg.DefaultCCR = I2S_RX_DMA_8BITS_CFG ;     /* setup 1 bytes*/
+			break ;
+		case 2:
+			s->dma_cfg.DefaultCCR = I2S_RX_DMA_16BITS_CFG ;    /* setup 2 bytes*/
+			break ;
+		case 4:
+			s->dma_cfg.DefaultCCR = I2S_RX_DMA_32BITS_CFG ;    /* setup 4 byte*/
+			break ;
+		}
+	}
+
+	s->dma_cfg.ChunkSize = 1;
+	if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) {
+		pcm_out_dma_cfg = &s->dma_cfg;
+	}
+	
+	//DPRINTK("s pointer: %d. audio dma %d cfg.DefaultCCR 0x%x ", (int)s, s->dmach, (unsigned int)s->dma_cfg.DefaultCCR);
+	//DPRINTK("cfg.ChunkSize 0x%x ", s->dma_cfg.ChunkSize);
+	wmt_setup_dma(s->dmach, s->dma_cfg) ;
+}
+
+static int audio_dma_free(struct audio_stream_a *s)
+{
+	int err = 0;
+	DBG_DETAIL();
+	wmt_free_dma(s->dmach);
+	s->dmach = NULL_DMA;
+	pcm_out_dma_cfg = NULL;
+	return err;
+}
+
+/*
+ * this stops the dma and clears the dma ptrs
+ */
+static void audio_stop_dma(struct audio_stream_a *s)
+{
+	unsigned long flags;
+	DBG_DETAIL();
+	local_irq_save(flags);
+	s->active = 0;
+	s->period = 0;
+	s->periods = 0;
+	s->offset = 0;
+    s->last_offset = 0;
+	wmt_stop_dma(s->dmach);
+	wmt_clear_dma(s->dmach);
+	local_irq_restore(flags);
+}
+
+/* this may get called several times by oss emulation */
+static int wmt_pcm_hw_params(struct snd_pcm_substream *substream,
+			      struct snd_pcm_hw_params *params)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int err = 0;
+	DBG_DETAIL();
+	snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
+	runtime->dma_bytes = params_buffer_bytes(params);
+	return err;
+}
+
+static int wmt_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+	DBG_DETAIL();
+	snd_pcm_set_runtime_buffer(substream, NULL);
+	return 0;
+}
+
+static int wmt_pcm_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int stream_id = substream->pstr->stream;
+	struct audio_stream_a *prtd = runtime->private_data;
+	struct audio_stream_a *s = &prtd[stream_id];
+
+	DBG_DETAIL();
+
+	s->period = 0;
+	s->periods = 0;
+	s->offset = 0;
+    s->last_offset = 0;
+	audio_setup_dma(s, stream_id);
+
+	return 0;
+}
+
+static int wmt_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int stream_id = substream->pstr->stream;
+	struct audio_stream_a *prtd = runtime->private_data;
+	struct audio_stream_a *s = &prtd[stream_id];
+	int ret = 0;
+
+	DPRINTK("wmt_pcm_trigger Enter, cmd=%d", cmd);
+	
+	spin_lock(&s->dma_lock);
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		s->active = 1;
+		audio_process_dma(s);
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		s->active = 0;
+		audio_stop_dma(s);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+	spin_unlock(&s->dma_lock);
+
+	return ret;
+}
+
+static snd_pcm_uframes_t wmt_pcm_pointer(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct audio_stream_a *prtd = runtime->private_data;
+	int stream_id = substream->pstr->stream;
+	struct audio_stream_a *s = &prtd[stream_id];
+	dma_addr_t ptr;
+	snd_pcm_uframes_t offset = 0;
+	
+	ptr = wmt_get_dma_pos(s->dmach);
+
+	if ((runtime->channels == 1 || runtime->channels == 2) && (runtime->format == SNDRV_PCM_FORMAT_S16_LE)) {
+		offset = bytes_to_frames(runtime, ptr - runtime->dma_addr);
+	}
+	
+	if ((offset < s->last_offset) && ((s->last_offset - offset) < runtime->period_size) &&
+			(s->last_offset != runtime->buffer_size)) {
+        snd_pcm_uframes_t old_offset = offset;
+		if (s->last_offset < runtime->period_size)
+			offset = runtime->period_size;
+		else {
+			offset = runtime->period_size *
+				((s->last_offset / runtime->period_size) + 1);
+		}
+        printk("last_offset %d, old offset %d, new offset %d\n", (int)s->last_offset, (int)old_offset, (int)offset);
+	}
+	s->last_offset = offset;	
+
+	if (offset >= runtime->buffer_size)
+		offset = 0;
+
+	spin_lock(&s->dma_lock);
+
+	if (s->periods > 0 && s->periods < 3) {
+		if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) {
+			if (snd_pcm_playback_hw_avail(runtime) >= 3 * runtime->period_size)
+				audio_process_dma(s);
+		}
+		else {
+			if (snd_pcm_capture_hw_avail(runtime) >= 3* runtime->period_size)
+				audio_process_dma(s);
+		}
+		
+	}
+	spin_unlock(&s->dma_lock);
+
+	//DPRINTK("offset = %x", (unsigned int)offset);
+	return offset;
+}
+
+static int wmt_pcm_open(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct audio_stream_a *s = runtime->private_data;
+	int ret;
+
+	DBG_DETAIL();
+	
+	if (!cpu_dai->active) {
+		audio_dma_request(&s[0], audio_dma_callback);
+		audio_dma_request(&s[1], audio_dma_callback);
+	}
+
+	snd_soc_set_runtime_hwparams(substream, &wmt_pcm_hardware);
+
+	/* Ensure that buffer size is a multiple of period size */
+	ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+	if (ret < 0)
+		goto out;
+
+out:
+	return ret;
+}
+
+static int wmt_pcm_close(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct audio_stream_a *s = runtime->private_data;
+
+	DBG_DETAIL();
+	
+	if (!cpu_dai->active) {
+		audio_dma_free(&s[0]);
+		audio_dma_free(&s[1]);
+	}
+
+	return 0;
+}
+
+static int wmt_pcm_mmap(struct snd_pcm_substream *substream,
+	struct vm_area_struct *vma)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	
+	DBG_DETAIL();
+	
+	return dma_mmap_writecombine(substream->pcm->card->dev, vma,
+				     runtime->dma_area,
+				     runtime->dma_addr,
+				     runtime->dma_bytes);
+}
+
+static struct snd_pcm_ops wmt_pcm_ops = {
+	.open		= wmt_pcm_open,
+	.close		= wmt_pcm_close,
+	.ioctl		= snd_pcm_lib_ioctl,
+	.hw_params	= wmt_pcm_hw_params,
+	.hw_free	= wmt_pcm_hw_free,
+	.prepare	= wmt_pcm_prepare,
+	.trigger	= wmt_pcm_trigger,
+	.pointer	= wmt_pcm_pointer,
+	.mmap		= wmt_pcm_mmap,
+};
+
+static u64 wmt_pcm_dmamask = DMA_BIT_MASK(32);
+
+static int wmt_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
+	int stream)
+{
+	struct snd_pcm_substream *substream = pcm->streams[stream].substream;
+	struct snd_dma_buffer *buf = &substream->dma_buffer;
+	size_t size = wmt_pcm_hardware.buffer_bytes_max;
+
+	DBG_DETAIL();
+	
+	buf->dev.type = SNDRV_DMA_TYPE_DEV;
+	buf->dev.dev = pcm->card->dev;
+	buf->private_data = NULL;
+	buf->area = dma_alloc_writecombine(pcm->card->dev, size,
+					&buf->addr, GFP_KERNEL);
+	
+	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		info("stream = %d, buf_addr = %x", stream, buf->addr);
+
+		wfd_audbuf.bytes = size;
+		wfd_audbuf.dev = pcm->card->dev;
+		wfd_audbuf.enable = 0;
+	}
+	
+	if (!buf->area)
+		return -ENOMEM;
+
+	buf->bytes = size;
+	
+	return 0;
+}
+
+static void wmt_pcm_free_dma_buffers(struct snd_pcm *pcm)
+{
+	struct snd_pcm_substream *substream;
+	struct snd_dma_buffer *buf;
+	int stream;
+
+	DBG_DETAIL();
+	
+	for (stream = 0; stream < 2; stream++) {
+		substream = pcm->streams[stream].substream;
+		if (!substream)
+			continue;
+
+		buf = &substream->dma_buffer;
+		if (!buf->area)
+			continue;
+
+		dma_free_writecombine(pcm->card->dev, buf->bytes, buf->area, buf->addr);
+		
+		buf->area = NULL;
+	}
+}
+
+int wmt_pcm_new(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_card *card = rtd->card->snd_card;
+	struct snd_pcm *pcm = rtd->pcm;
+	int ret = 0;
+
+	DBG_DETAIL();
+	
+	if (!card->dev->dma_mask)
+		card->dev->dma_mask = &wmt_pcm_dmamask;
+	if (!card->dev->coherent_dma_mask)
+		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+
+	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
+		ret = wmt_pcm_preallocate_dma_buffer(pcm,
+			SNDRV_PCM_STREAM_PLAYBACK);
+		if (ret)
+			goto out;
+	}
+
+	if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
+		ret = wmt_pcm_preallocate_dma_buffer(pcm,
+			SNDRV_PCM_STREAM_CAPTURE);
+		if (ret)
+			goto out;
+	}
+
+out:
+	/* free preallocated buffers in case of error */
+	if (ret)
+		wmt_pcm_free_dma_buffers(pcm);
+	
+	return ret;
+}
+
+#ifdef CONFIG_PM
+static int wmt_pcm_suspend(struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = dai->runtime;
+	struct audio_stream_a *prtd;
+	struct audio_stream_a *s;
+
+	DBG_DETAIL();
+	
+	if (!runtime)
+		return 0;
+
+	prtd = runtime->private_data;
+	s = &prtd[SNDRV_PCM_STREAM_PLAYBACK];
+
+	if (s->active) {
+		udelay(5);
+		wmt_stop_dma(s->dmach);
+		/*
+		wmt_clear_dma(s->dmach);
+		audio_stop_dma(s);
+		*/
+	}
+
+	s = &prtd[SNDRV_PCM_STREAM_CAPTURE];
+
+	if (s->active) {
+		udelay(5);
+		wmt_stop_dma(s->dmach);
+		/*
+		wmt_clear_dma(s->dmach);
+		audio_stop_dma(s);
+		*/
+	}
+
+	return 0;
+}
+
+static int wmt_pcm_resume(struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = dai->runtime;
+	struct audio_stream_a *prtd;
+	struct audio_stream_a *s;
+
+	DBG_DETAIL();
+	
+	if (!runtime) {
+		if ((pcm_out_dmach != 0xFF) && (pcm_out_dma_cfg != NULL)) {
+			wmt_setup_dma(pcm_out_dmach, *pcm_out_dma_cfg);
+		}
+		return 0;
+	}
+	
+	prtd = runtime->private_data;
+	s = &prtd[SNDRV_PCM_STREAM_PLAYBACK];
+	audio_setup_dma(s, SNDRV_PCM_STREAM_PLAYBACK);
+	
+	if (s->active) {
+		wmt_resume_dma(s->dmach) ;
+	}
+	
+	s = &prtd[SNDRV_PCM_STREAM_CAPTURE];
+	audio_setup_dma(s, SNDRV_PCM_STREAM_CAPTURE);
+
+	if (s->active) {
+		wmt_resume_dma(s->dmach) ;
+	}
+
+	return 0;
+}
+#else
+#define wmt_pcm_suspend	NULL
+#define wmt_pcm_resume		NULL
+#endif
+
+static struct snd_soc_platform_driver wmt_soc_platform = {
+	.ops		= &wmt_pcm_ops,
+	.pcm_new	= wmt_pcm_new,
+	.pcm_free	= wmt_pcm_free_dma_buffers,
+	.suspend	= wmt_pcm_suspend,
+	.resume		= wmt_pcm_resume,
+};
+
+static int __devinit wmt_pcm_platform_probe(struct platform_device *pdev)
+{
+	DBG_DETAIL();
+	
+	return snd_soc_register_platform(&pdev->dev, &wmt_soc_platform);
+}
+
+static int __devexit wmt_pcm_platform_remove(struct platform_device *pdev)
+{
+	DBG_DETAIL();
+	
+	snd_soc_unregister_platform(&pdev->dev);
+	return 0;
+}
+
+static struct platform_driver wmt_pcm_driver = {
+	.driver = {
+			.name = "wmt-audio-pcm",
+			.owner = THIS_MODULE,
+	},
+
+	.probe = wmt_pcm_platform_probe,
+	.remove = __devexit_p(wmt_pcm_platform_remove),
+};
+
+module_platform_driver(wmt_pcm_driver);
+
+MODULE_AUTHOR("WonderMedia Technologies, Inc.");
+MODULE_DESCRIPTION("WMT [ALSA SoC/pcm] driver");
+MODULE_LICENSE("GPL");
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm.h b/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm.h
new file mode 100755
index 00000000..90ad7747
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt-pcm.h
@@ -0,0 +1,46 @@
+/*++ 
+ * linux/sound/soc/wmt/wmt-pcm.h
+ * WonderMedia audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+
+#ifndef __WMT_PCM_H__
+#define __WMT_PCM_H__
+
+struct wmt_pcm_dma_data {
+	char          *name;     /* stream identifier */
+	int           dma_req;   /* DMA request line */
+	unsigned long port_addr; /* transmit/receive register */
+	struct dma_device_cfg_s *dma_cfg;
+};
+
+typedef struct WFDStrmInfo {
+	unsigned int req_sz;
+	unsigned int avail_sz;
+	unsigned int buf_offset;
+} WFDStrmInfo_t;
+
+extern void wmt_pcm_wfd_start(void);
+extern unsigned int wmt_pcm_wfd_get_buf(void);
+extern void wmt_pcm_wfd_stop(void);
+extern int wmt_pcm_wfd_get_strm(WFDStrmInfo_t *info);
+
+#endif
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt-soc.c b/ANDROID_3.4.5/sound/soc/wmt/wmt-soc.c
new file mode 100755
index 00000000..f62e993d
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt-soc.c
@@ -0,0 +1,321 @@
+/*++ 
+ * linux/sound/soc/wmt/wmt-soc.c
+ * WonderMedia audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/hwdep.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+
+#include "wmt-soc.h"
+#include "wmt-pcm.h"
+#include "wmt_hwdep.h"
+#include "../codecs/wmt_vt1602.h"
+#include "../codecs/vt1603.h"
+
+extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen);
+extern void wmt_set_i2s_share_pin();
+char wmt_codec_name[80];
+char wmt_dai_name[80];
+char wmt_rate[10];
+
+#define AUDIO_NAME "WMT_SOC"
+//#define WMT_SOC_DEBUG 1
+//#define WMT_SOC_DEBUG_DETAIL 1
+
+#ifdef WMT_SOC_DEBUG
+#define DPRINTK(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
+#else
+#define DPRINTK(format, arg...) do {} while (0)
+#endif
+
+#ifdef WMT_SOC_DEBUG_DETAIL
+#define DBG_DETAIL(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": [%s]" format "\n" , __FUNCTION__, ## arg)
+#else
+#define DBG_DETAIL(format, arg...) do {} while (0)
+#endif
+
+#define err(format, arg...) \
+	printk(KERN_ERR AUDIO_NAME ": " format "\n" , ## arg)
+#define info(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
+#define warn(format, arg...) \
+	printk(KERN_WARNING AUDIO_NAME ": " format "\n" , ## arg)
+
+#define WMT_I2S_RATES  SNDRV_PCM_RATE_8000_96000
+
+static struct snd_soc_card snd_soc_machine_wmt;
+
+static int wmt_soc_primary_startup(struct snd_pcm_substream *substream)
+{
+	DBG_DETAIL();
+	return 0;
+}
+
+static void wmt_soc_primary_shutdown(struct snd_pcm_substream *substream)
+{
+	DBG_DETAIL();
+}
+
+static int wmt_soc_primary_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	int ret = 0;
+
+	DBG_DETAIL();
+	
+	if (strcmp(wmt_codec_name, "hwdac")) {
+		/* Set codec DAI configuration */
+		ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_CBS_CFS |
+				SND_SOC_DAIFMT_I2S |SND_SOC_DAIFMT_NB_NF);
+		if (ret < 0)
+			return ret;
+	}
+	
+
+	/* Set cpu DAI configuration for I2S */
+	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S 
+				|SND_SOC_DAIFMT_MASTER_MASK | SND_SOC_DAIFMT_NB_NF);  
+	if (ret < 0)
+		return ret;
+
+	if ((!strcmp(wmt_codec_name, "vt1602")) || (!strcmp(wmt_codec_name, "vt1603"))) {
+		/* Set the codec system clock for DAC and ADC */
+		if (!(params_rate(params) % 11025)) {
+			ret = snd_soc_dai_set_sysclk(codec_dai, 0, 11289600,
+						    SND_SOC_CLOCK_IN);		    
+		}				    
+		else {
+			ret = snd_soc_dai_set_sysclk(codec_dai, 0, 12288000,
+						    SND_SOC_CLOCK_IN);				    
+	  }					    
+	}
+
+	return ret;
+}
+
+static int wmt_soc_second_startup(struct snd_pcm_substream *substream)
+{
+	//dump_stack();
+	DBG_DETAIL();
+	return 0;
+}
+
+static void wmt_soc_second_shutdown(struct snd_pcm_substream *substream)
+{
+	//dump_stack();
+	DBG_DETAIL();
+}
+
+static int wmt_soc_second_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params)
+{
+	//dump_stack();
+	DBG_DETAIL();
+	return 0;
+}
+
+static int wmt_soc_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+	DBG_DETAIL();
+	wmt_soc_hwdep_new(rtd->codec);
+	return 0;
+}
+
+static int wmt_suspend_pre(struct snd_soc_card *card)
+{
+	snd_soc_dapm_disable_pin(&card->rtd->codec->dapm, "Left HP");
+	snd_soc_dapm_disable_pin(&card->rtd->codec->dapm, "Right HP");
+	snd_soc_dapm_disable_pin(&card->rtd->codec->dapm, "Left SPK");
+	snd_soc_dapm_disable_pin(&card->rtd->codec->dapm, "Right SPK");
+}
+
+static int wmt_suspend_post(struct snd_soc_card *card)
+{
+	DBG_DETAIL();
+
+	/* Disable BIT15:I2S clock, BIT4:ARFP clock, BIT3:ARF clock */
+	PMCEU_VAL &= ~(BIT15 | BIT4 | BIT3);
+
+	snd_soc_dapm_enable_pin(&card->rtd->codec->dapm, "Left HP");
+	snd_soc_dapm_enable_pin(&card->rtd->codec->dapm, "Right HP");
+	snd_soc_dapm_enable_pin(&card->rtd->codec->dapm, "Left SPK");
+	snd_soc_dapm_enable_pin(&card->rtd->codec->dapm, "Right SPK");
+	
+	return 0;
+}
+
+static int wmt_resume_pre(struct snd_soc_card *card)
+{
+	/* Enable MCLK before VT1602 codec enable, otherwise the codec will be disabled. */
+	
+	/* set to 24.576MHz */
+	auto_pll_divisor(DEV_I2S, CLK_ENABLE , 0, 0);
+	auto_pll_divisor(DEV_I2S, SET_PLLDIV, 1, 24576);
+	/* Enable BIT4:ARFP clock, BIT3:ARF clock */
+	PMCEU_VAL |= (BIT4 | BIT3);
+	/* Enable BIT2:AUD clock */
+	PMCE3_VAL |= BIT2;
+
+	wmt_set_i2s_share_pin();
+	return 0;
+}
+
+static struct snd_soc_ops wmt_soc_primary_ops = {
+	.startup = wmt_soc_primary_startup,
+	.hw_params = wmt_soc_primary_hw_params,
+	.shutdown = wmt_soc_primary_shutdown,
+};
+
+static struct snd_soc_ops wmt_soc_second_ops = {
+	.startup = wmt_soc_second_startup,
+	.hw_params = wmt_soc_second_hw_params,
+	.shutdown = wmt_soc_second_shutdown,
+};
+
+/* Digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link wmt_dai[] = {
+	{
+		.name = "HiFi",
+		.stream_name = "HiFi",
+		.platform_name = "wmt-audio-pcm.0",
+		.init = wmt_soc_dai_init,
+		.ops = &wmt_soc_primary_ops,
+	},
+	{
+		.name = "Voice",
+		.stream_name = "Voice",
+		.platform_name = "wmt-pcm-dma.0",
+		.cpu_dai_name = "wmt-pcm-controller.0",
+		.codec_dai_name = "HWDAC",
+		.codec_name = "wmt-i2s-hwdac.0",
+		.ops = &wmt_soc_second_ops,
+	},
+};
+
+/* Audio machine driver */
+static struct snd_soc_card snd_soc_machine_wmt = {
+	.name = "WMT_VT1609",
+	.dai_link = wmt_dai,
+	.num_links = ARRAY_SIZE(wmt_dai),
+	.suspend_pre = wmt_suspend_pre,
+	.suspend_post = wmt_suspend_post,
+	.resume_pre = wmt_resume_pre,
+};
+
+static struct platform_device *wmt_snd_device;
+
+static int __init wmt_soc_init(void)
+{
+	int ret, i;
+	char buf[64];
+	int len = ARRAY_SIZE(buf);
+	
+	if (wmt_getsyspara("wmt.audio.i2s", buf, &len) != 0) {
+		strcpy(wmt_dai_name, "null");	
+		strcpy(wmt_codec_name, "null");
+	}
+	else {
+		strcpy(wmt_dai_name, "i2s");
+	}
+
+	if (strcmp(wmt_dai_name, "null")) {
+		for (i = 0; i < 80; ++i) {
+			if (buf[i] == ':')
+				break;
+			else
+				wmt_codec_name[i] = buf[i];
+		}
+	}
+	else {
+		return -EINVAL;
+	}
+
+	// is wm8994, return and load wmt_wm8994 module
+	if (strcmp(wmt_codec_name, "wm8994") == 0)
+		return -ENODEV;
+
+	info("dai_name=%s, codec_name=%s", wmt_dai_name, wmt_codec_name);
+	
+
+	wmt_i2s_dai.playback.rates = (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_8000);
+	wmt_i2s_dai.capture.rates = (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_8000);
+	wmt_dai[0].cpu_dai_name = "wmt-i2s.0";
+
+	if (!strcmp(wmt_codec_name, "vt1602")) {		
+		wmt_dai[0].codec_dai_name = "VT1602";
+		wmt_dai[0].codec_name = "vt1602.1-001a";
+	}
+	else if (!strcmp(wmt_codec_name, "hwdac")) {
+		wmt_dai[0].codec_dai_name = "HWDAC";
+		wmt_dai[0].codec_name = "wmt-i2s-hwdac.0";
+	}
+	else if (!strcmp(wmt_codec_name, "vt1603")) {
+		wmt_dai[0].codec_dai_name = "VT1603";
+		wmt_dai[0].codec_name = "vt1603-codec";
+	}
+
+	/* Doing register process after plug-in */
+	wmt_snd_device = platform_device_alloc("soc-audio", -1);
+	if (!wmt_snd_device)
+		return -ENOMEM;
+
+	platform_set_drvdata(wmt_snd_device, &snd_soc_machine_wmt);
+	
+	ret = platform_device_add(wmt_snd_device);
+	if (ret)
+		goto err1;
+
+	return 0;
+	
+err1:
+	platform_device_put(wmt_snd_device);
+	return ret;
+
+}
+
+static void __exit wmt_soc_exit(void)
+{
+	DBG_DETAIL();
+	
+	platform_device_unregister(wmt_snd_device);
+}
+
+module_init(wmt_soc_init);
+module_exit(wmt_soc_exit);
+
+MODULE_AUTHOR("WonderMedia Technologies, Inc.");
+MODULE_DESCRIPTION("WMT [ALSA SoC/Machine] driver");
+MODULE_LICENSE("GPL");
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt-soc.h b/ANDROID_3.4.5/sound/soc/wmt/wmt-soc.h
new file mode 100755
index 00000000..f49a2764
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt-soc.h
@@ -0,0 +1,53 @@
+/*++ 
+ * linux/sound/soc/wmt/wmt-soc.h
+ * WonderMedia audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+ 
+#ifndef __WMT_ASOC_H__
+#define __WMT_ASOC_H__
+#include <mach/dma.h>
+
+struct audio_stream_a {
+	char *id;		/* identification string */
+	int stream_id;		/* numeric identification */
+	dmach_t dmach;	        /* DMA channel number */
+	struct dma_device_cfg_s dma_cfg;   /* DMA device config */
+	int dma_dev;		/* dma number of that device */
+	int dma_q_head;		/* DMA Channel Q Head */
+	int dma_q_tail;		/* DMA Channel Q Tail */
+	char dma_q_count;	/* DMA Channel Q Count */
+	int active:1;		/* we are using this stream for transfer now */
+	int period;		/* current transfer period */
+	int periods;		/* current count of periods registerd in the DMA engine */
+	spinlock_t dma_lock;	/* for locking in DMA operations */
+	struct snd_pcm_substream *stream;	/* the pcm stream */
+	unsigned linked:1;	/* dma channels linked */
+	int offset;		/* store start position of the last period in the alsa buffer */
+    snd_pcm_uframes_t last_offset;
+};
+
+#define NUM_LINKS	1
+
+extern struct snd_soc_dai_driver wmt_i2s_dai;
+
+
+#endif
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt_hwdep.c b/ANDROID_3.4.5/sound/soc/wmt/wmt_hwdep.c
new file mode 100755
index 00000000..8a6d374e
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt_hwdep.c
@@ -0,0 +1,259 @@
+/*++ 
+ * linux/sound/soc/wmt/wmt_hwdep.c
+ * WonderMedia I2S audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include <asm/mach-types.h>
+#include <mach/gpio.h>
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc-dapm.h>
+#include <sound/hwdep.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+
+#include "wmt_hwdep.h"
+#include "wmt-pcm.h"
+
+int WFD_flag = 0;
+static int gmode = 2;
+static char gstring[3] = "LR";
+
+static char gSpdHdm[6] = "BOTH";
+static int gSpHd = 6;
+
+extern void wmt_i2s_dac0_ctrl(int HDMI_audio_enable);
+
+static int wmt_hwdep_open(struct snd_hwdep *hw, struct file *file)
+{
+	if ((file->f_flags & O_RDWR) && (WFD_flag)) {
+		return -EBUSY;
+	}
+	else if (file->f_flags & O_SYNC) {
+		WFD_flag = 1;
+	}	
+	return 0;
+}
+
+static int wmt_hwdep_release(struct snd_hwdep *hw, struct file *file)
+{
+	WFD_flag = 0;
+	return 0;
+}
+
+static int wmt_hwdep_mmap(struct snd_hwdep *hw, struct file *file, struct vm_area_struct *vma)
+{
+	vma->vm_flags |= VM_IO | VM_RESERVED;
+	vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+	if (remap_pfn_range(vma, vma->vm_start, (vma->vm_pgoff),
+			vma->vm_end - vma->vm_start, vma->vm_page_prot)) {
+       	printk("*E* remap page range failed: vm_pgoff=0x%x ", (unsigned int)vma->vm_pgoff);
+       	return -EAGAIN;    
+    }
+    return 0;
+}
+
+static int wmt_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, unsigned int cmd, unsigned long arg)
+{
+	int *value;
+	WFDStrmInfo_t *info;
+	struct wmt_soc_vt1603_info vt1603_info;
+	int ret = 0;
+	
+	switch (cmd) {
+	case WMT_SOC_IOCTL_HDMI:
+		value = (int __user *)arg;
+		
+		if (*value > 1) {
+			printk("Not supported status for HDMI Audio %d", *value);
+			return 0;
+		}	
+		wmt_i2s_dac0_ctrl(*value);
+		return 0;
+	
+	case WMT_SOC_IOCTL_WFD_START:
+		wmt_pcm_wfd_start();
+		return copy_to_user( (void *)arg, (const void __user *) wmt_pcm_wfd_get_buf(), sizeof(unsigned int));
+		
+	case WMT_SOC_IOCTL_GET_STRM:
+		info = (WFDStrmInfo_t *)wmt_pcm_wfd_get_strm((WFDStrmInfo_t *)arg);
+		return __put_user((int)info, (unsigned int __user *) arg);
+
+	case WMT_SOC_IOCTL_WFD_STOP:
+		wmt_pcm_wfd_stop();
+		return 0;
+	
+	case WMT_SOC_IOCTL_VT1603_RD:
+		ret = copy_from_user(&vt1603_info, (void __user *)arg, sizeof(vt1603_info));
+		
+		if (ret == 0) {
+			vt1603_info.reg_value = vt1603_hwdep_ioctl(0, vt1603_info.reg_offset, vt1603_info.reg_value);
+			printk("<<<%s read reg 0x%x val 0x%x\n", __FUNCTION__, vt1603_info.reg_offset, vt1603_info.reg_value);
+			ret = copy_to_user((void __user *)arg, &vt1603_info, sizeof(vt1603_info));
+		}
+		return ret;
+	case WMT_SOC_IOCTL_VT1603_WR:  
+		ret = copy_from_user(&vt1603_info, (void __user *)arg, sizeof(vt1603_info));
+			printk("<<<%s write reg 0x%x val 0x%x\n", __FUNCTION__, vt1603_info.reg_offset, vt1603_info.reg_value);
+		if (ret == 0)
+			vt1603_hwdep_ioctl(1, vt1603_info.reg_offset, vt1603_info.reg_value);
+		return ret;
+	
+	case WMT_SOC_IOCTL_CH_SEL:
+		value = (int __user *)arg;
+		
+		if (*value > 2) {
+			printk("Not supported for CH select %d", *value);
+			return 0;
+		}	
+		wmt_i2s_ch_sel(*value);
+		return 0;		
+		
+	default:
+		break;
+	}
+	
+	printk("Not supported ioctl for WMT-HWDEP");
+	return -ENOIOCTLCMD;
+}
+
+static long wmt_hwdep_write(struct snd_hwdep *hw, const char __user *buf,
+		      long count, loff_t *offset)
+{
+	char string[3];
+	//int mode;
+	memset(string, 0, sizeof(string));
+	copy_from_user(&string, buf, sizeof(string));
+	printk("<<<%s %s\n", __FUNCTION__, string);
+	if (!memcmp(string, "LL", 2)) {
+		gmode = 0;		
+	}
+	else if (!memcmp(string, "RR", 2)) {
+		gmode = 1;
+	}
+	else if (!memcmp(string, "LR", 2)) {
+		gmode = 2;
+	}
+	else {
+		printk("Not supported for CH select");
+		return count;
+	}	
+	
+	memset(gstring, 0, sizeof(gstring));
+	strncpy(gstring, string, sizeof(string));
+	wmt_i2s_ch_sel(gmode);
+	return count;
+}
+
+static long wmt_hwdep_read(struct snd_hwdep *hw, char __user *buf,
+		     long count, loff_t *offset)
+{
+	int len = 0;
+	printk("%s string %s --> mode %d\n", __FUNCTION__, gstring, gmode);
+	len = copy_to_user(buf, gstring, sizeof(gstring));
+	
+	return sizeof(gstring);
+}		 
+
+static long wmt_hwdep_write_1(struct snd_hwdep *hw, const char __user *buf,
+		      long count, loff_t *offset)
+{
+	char string[5];
+	//int mode;
+
+	copy_from_user(&string, buf, sizeof(string));
+	printk("<<<%s %s\n", __FUNCTION__, string);
+	if (!memcmp(string, "NONE", 4)) {
+		gSpHd = 3;
+	}
+	else if (!memcmp(string, "HDMI", 4)) {
+		gSpHd = 4;
+	}
+	else if (!memcmp(string, "SPDIF", 5)) {
+		gSpHd = 5;
+	}
+	else if (!memcmp(string, "BOTH", 4)) {
+		gSpHd = 6;
+	}
+	else {
+		printk("Not supported for SPDIF/HDMI switch");
+		return count;
+	}
+	
+	memset(gSpdHdm, 0, sizeof(gSpdHdm));
+	strncpy(gSpdHdm, string, sizeof(string));
+	
+	wmt_i2s_ch_sel(gSpHd);
+	return count;
+}
+
+
+static long wmt_hwdep_read_1(struct snd_hwdep *hw, char __user *buf,
+		     long count, loff_t *offset)
+{
+	int len = 0;
+	printk("%s string %s --> mode %d\n", __FUNCTION__, gSpdHdm, gSpHd);
+	len = copy_to_user(buf, gSpdHdm, sizeof(gSpdHdm));
+	
+	return sizeof(gstring);
+}
+
+void wmt_soc_hwdep_new(struct snd_soc_codec *codec)
+{
+	struct snd_hwdep *hwdep;
+	struct snd_hwdep *hwdep_1;
+	if (snd_hwdep_new(codec->card->snd_card, "WMT-HWDEP", 0, &hwdep) < 0) {
+		printk("create WMT-HWDEP_0 fail");
+		return;
+	}
+
+	sprintf(hwdep->name, "WMT-HWDEP %d", 0);
+	
+	hwdep->iface = SNDRV_HWDEP_IFACE_WMT;
+	hwdep->ops.open = wmt_hwdep_open;
+	hwdep->ops.ioctl = wmt_hwdep_ioctl;
+	hwdep->ops.release = wmt_hwdep_release;
+	hwdep->ops.mmap = wmt_hwdep_mmap;
+	hwdep->ops.write = wmt_hwdep_write;
+	hwdep->ops.read = wmt_hwdep_read;
+	
+	if (snd_hwdep_new(codec->card->snd_card, "WMT-HWDEP", 1, &hwdep_1) < 0) {
+		printk("create WMT-HWDEP_1 fail");
+		return;
+	}
+
+	sprintf(hwdep_1->name, "WMT-HWDEP %d", 1);
+	printk("create %s success", hwdep_1->name);
+
+	hwdep_1->iface = SNDRV_HWDEP_IFACE_WMT;
+	hwdep_1->ops.write = wmt_hwdep_write_1;
+	hwdep_1->ops.read = wmt_hwdep_read_1;
+}
+
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt_hwdep.h b/ANDROID_3.4.5/sound/soc/wmt/wmt_hwdep.h
new file mode 100755
index 00000000..c95d5e9e
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt_hwdep.h
@@ -0,0 +1,55 @@
+/*++ 
+ * linux/sound/soc/wmt/wmt_hwdep.h
+ * WonderMedia I2S audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+/*
+ * ioctls for Hardware Dependant Interface
+ */
+#ifndef __WMT_HWDEP_H__
+#define __WMT_HWDEP_H__
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/hwdep.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+
+struct wmt_soc_vt1603_info {
+    u16 reg_offset;
+    u16 reg_value;
+};//add 2013-9-2 for vt1603 eq apk
+
+#define WMT_SOC_IOCTL_HDMI			_IOWR('H', 0x10, int)
+#define WMT_SOC_IOCTL_WFD_START		_IOWR('H', 0x20, int)
+#define WMT_SOC_IOCTL_GET_STRM		_IOWR('H', 0x30, int)
+#define WMT_SOC_IOCTL_WFD_STOP		_IOWR('H', 0x40, int)
+#define WMT_SOC_IOCTL_VT1603_RD		_IOWR('H', 0x50, int)
+#define WMT_SOC_IOCTL_VT1603_WR		_IOWR('H', 0x60, int)
+#define WMT_SOC_IOCTL_CH_SEL		_IOWR('H', 0x70, int)
+void wmt_soc_hwdep_new(struct snd_soc_codec *codec);
+
+extern int vt1603_hwdep_ioctl(u8 rw_flag, u16 offset, u16 value);
+extern void wmt_i2s_ch_sel(int ch_sel_num);
+#endif
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt_swmixer.c b/ANDROID_3.4.5/sound/soc/wmt/wmt_swmixer.c
new file mode 100755
index 00000000..4d92a81f
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt_swmixer.c
@@ -0,0 +1,101 @@
+/*++ 
+ * linux/sound/soc/wmt/wmt_swmixer.c
+ * WonderMedia I2S audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+ 
+#include "wmt_swmixer.h"
+#include <sound/asound.h>
+
+
+
+void wmt_sw_u2s(int fmt, char *buffer, unsigned int chunksize)
+{
+	unsigned int index;
+	if (fmt == SNDRV_PCM_FORMAT_U8) {
+		for (index = 0; index < chunksize; ++index)
+			*(buffer + index) ^= 0x80;
+	}
+	
+}
+
+
+void wmt_pcm_fmt_trans(int fmt, int channel, char *src_buf, char *dst_buf, unsigned int chunksize)
+{
+	unsigned int index = 0;
+	float_data_t f_data;
+	unsigned short data;
+
+	/* always convert to 2ch, s16le (4 bytes) */
+	if ((fmt == SNDRV_PCM_FORMAT_S16_LE) && (channel == 1)) {
+		/* transfer from 1ch s16le(2 bytes) to 2ch s16le(4 bytes) */
+		for (index = 0; index < (chunksize / 2); ++index) {
+			*((unsigned int *)dst_buf + index) = (*((unsigned short *)src_buf + index) << 16 |
+						    *((unsigned short *)src_buf + index));
+		}	
+	}
+	else if ((fmt == SNDRV_PCM_FORMAT_U8) && (channel == 1)) {
+		/* transfer from 1ch U8(1 bytes) to 2ch s16le(4 bytes) */
+		for (index = 0; index < chunksize; ++index) {
+			/* padding zero to byte 0 & byte 2 */
+			*((unsigned int *)dst_buf + index) = (*((unsigned char *)src_buf + index) << 24 |
+						    *((unsigned char *)src_buf + index) << 8);
+		}	
+	}
+	else if ((fmt == SNDRV_PCM_FORMAT_U8) && (channel == 2)) {
+		/* transfer from 2ch U8(2 bytes) to 2ch s16le(4 bytes) */
+		for (index = 0; index < chunksize; ++index) {
+			/* padding zero to byte 0 */
+			*((unsigned short *)dst_buf + index) = *((unsigned char *)src_buf + index) << 8;
+		}	
+	}
+	else if ((fmt == SNDRV_PCM_FORMAT_FLOAT) && (channel == 2)) {
+		/* transfer from 2ch float(8 bytes) to 2ch s16le(4 bytes) */
+		for (index = 0; index < (chunksize / 4); ++index) {
+			f_data = *((float_data_t *)src_buf + index);
+			
+			if (!f_data.sign) {
+				data = (f_data.frac + 0x800000) >> (8 - (f_data.exp - 127));
+			}
+			else {
+				data = ~((f_data.frac + 0x800000) >> (8 - (f_data.exp - 127))) + 1;
+			}
+
+			*((unsigned short *)dst_buf + index) = data;
+		}
+	}
+	else if ((fmt == SNDRV_PCM_FORMAT_FLOAT) && (channel == 1)) {
+		/* transfer from 1ch float(4 bytes) to 2ch s16le(4 bytes) */
+		for (index = 0; index < (chunksize / 4); ++index) {
+			f_data = *((float_data_t *)src_buf + index);
+			
+			if (!f_data.sign) {
+				data = (unsigned short)((f_data.frac + 0x800000) >> (8 - (f_data.exp - 127)));
+			}
+			else {
+				data = (unsigned short)(~((f_data.frac + 0x800000) >> (8 - (f_data.exp - 127))) + 1);
+			}
+
+			*((unsigned int *)dst_buf + index) = (data << 16) | data;
+		}
+	}	
+}
+
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt_swmixer.h b/ANDROID_3.4.5/sound/soc/wmt/wmt_swmixer.h
new file mode 100755
index 00000000..3163e5af
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt_swmixer.h
@@ -0,0 +1,33 @@
+/*++ 
+ * linux/sound/soc/wmt/wmt_swmixer.h
+ * WonderMedia I2S audio driver for ALSA
+ *
+ * Copyright c 2010  WonderMedia  Technologies, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 2 of the License, or 
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * WonderMedia Technologies, Inc.
+ * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
+--*/
+
+
+typedef struct float_data {
+    unsigned long frac : 23;
+	unsigned long exp : 8;
+	unsigned long sign : 1;
+} float_data_t;
+ 
+void wmt_sw_u2s(int fmt, char *buffer, unsigned int chunksize);
+void wmt_pcm_fmt_trans(int fmt, int channel, char *src_buf, char *dst_buf, unsigned int chunksize);
+
diff --git a/ANDROID_3.4.5/sound/soc/wmt/wmt_wm8994.c b/ANDROID_3.4.5/sound/soc/wmt/wmt_wm8994.c
new file mode 100755
index 00000000..8d4cebf9
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/wmt/wmt_wm8994.c
@@ -0,0 +1,304 @@
+/*
+ * wmt_wm8994.c
+ *
+ * Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Author: Chanwoo Choi <cw00.choi@samsung.com>
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include <asm/mach-types.h>
+#include <mach/gpio.h>
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc-dapm.h>
+#include <sound/hwdep.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+
+#include "wmt-soc.h"
+#include "wmt-pcm.h"
+#include "wmt_hwdep.h"
+#include "../codecs/wm8994.h"
+#include <linux/mfd/wm8994/registers.h>
+#include <linux/mfd/wm8994/core.h>
+
+#include <linux/i2c.h>
+
+static struct snd_soc_card wmt;
+static struct platform_device *wmt_snd_device;
+static int wmt_incall = 0;
+
+extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen);
+extern void wmt_set_i2s_share_pin(void);
+
+static const struct snd_pcm_hardware wmt_voice_hardware = {
+	.info           = SNDRV_PCM_INFO_MMAP |
+	                  SNDRV_PCM_INFO_MMAP_VALID |
+	                  SNDRV_PCM_INFO_INTERLEAVED |
+	                  SNDRV_PCM_INFO_PAUSE |
+	                  SNDRV_PCM_INFO_RESUME,
+	.formats        = SNDRV_PCM_FMTBIT_S16_LE,
+	.rate_min       = 8000,
+	.rate_max       = 8000,
+	.period_bytes_min   = 16,
+	.period_bytes_max   = 4 * 1024,
+	.periods_min        = 2,
+	.periods_max        = 16,
+	.buffer_bytes_max   = 16 * 1024,
+};
+
+static int wmt_snd_suspend_post(struct snd_soc_card *card)
+{
+	/* Disable BIT15:I2S clock, BIT4:ARFP clock, BIT3:ARF clock */
+	PMCEU_VAL &= ~(BIT15 | BIT4 | BIT3);
+	return 0;
+}
+
+static int wmt_snd_resume_pre(struct snd_soc_card *card)
+{
+	/* Enable MCLK before VT1602 codec enable, otherwise the codec will be disabled. */
+	
+	/* set to 24.576MHz */
+	auto_pll_divisor(DEV_I2S, CLK_ENABLE , 0, 0);
+	auto_pll_divisor(DEV_I2S, SET_PLLDIV, 1, 24576);
+	/* Enable BIT4:ARFP clock, BIT3:ARF clock */
+	PMCEU_VAL |= (BIT4 | BIT3);
+	/* Enable BIT2:AUD clock */
+	PMCE3_VAL |= BIT2;
+
+	wmt_set_i2s_share_pin();
+
+	return 0;
+}
+
+static int wmt_wm8994_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	int ret = 0;
+	unsigned int pll_in  = 48000;
+	unsigned int pll_out = 12000000;
+
+	/* Set the codec system clock for DAC and ADC */			
+	ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_LRCLK,
+			pll_in, pll_out);
+	if (ret < 0)
+		return ret;
+	ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1, pll_out,
+			SND_SOC_CLOCK_IN);
+
+	wmt_soc_hwdep_new(rtd->codec);
+
+	return 0;
+}
+
+static int wmt_hifi_hw_params(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	int ret = 0;
+	unsigned int pll_in  = 48000;
+	unsigned int pll_out = 12000000;
+
+	/* Set codec DAI configuration */
+	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_CBS_CFS | SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF);
+	if (ret< 0) {
+		printk("<<ret:%d snd_soc_dai_set_fmt(codec) hifi\n", ret);
+		return ret;
+	}
+
+	/* Set cpu DAI configuration for I2S */
+	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S);
+	if (ret < 0) {
+		printk("<<ret:%d snd_soc_dai_set_fmt(cpu) hifi\n", ret);
+		return ret;
+	}
+
+	/* Set the codec system clock for DAC and ADC */			
+	ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_LRCLK,
+			pll_in, pll_out);
+	if (ret < 0) {
+		printk("<<ret:%d snd_soc_dai_set_pll hifi\n", ret);
+		return ret;
+	}
+	ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1, pll_out,
+			SND_SOC_CLOCK_IN);
+	if (ret < 0)
+		printk("<<ret:%d snd_soc_dai_set_sysclk hifi\n", ret);
+
+	if (!wmt_incall)
+		snd_soc_update_bits(codec_dai->codec, WM8994_CLOCKING_1, WM8994_SYSCLK_SRC, 0);
+	
+	return 0;
+}
+
+static int wmt_voice_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int ret;
+
+	ret = snd_soc_set_runtime_hwparams(substream, &wmt_voice_hardware);
+
+	/* Ensure that buffer size is a multiple of period size */
+	ret = snd_pcm_hw_constraint_integer(runtime,SNDRV_PCM_HW_PARAM_PERIODS);
+	return ret;
+}
+
+static int wmt_voice_hw_params(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	int ret = 0;
+	unsigned int pll_in  = 2048000;
+	unsigned int pll_out = 12288000;
+	
+	if (params_rate(params) != 8000)
+		return -EINVAL;
+
+	/* Set codec DAI configuration */
+	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_A |
+			SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBS_CFS);
+	if (ret < 0) {
+		printk("<<ret:%d snd_soc_dai_set_fmt voice\n", ret);
+		return ret;
+	}
+
+	/* Set the codec system clock for DAC and ADC */			
+	ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL2, WM8994_FLL_SRC_BCLK,
+			pll_in, pll_out);
+	if (ret < 0) {
+		printk("<<ret:%d snd_soc_dai_set_pll voice\n", ret);
+		return ret;
+	}
+	ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL2, pll_out,
+			SND_SOC_CLOCK_IN);
+	if (ret < 0)
+		printk("<<ret:%d snd_soc_dai_set_sysclk voice\n", ret);
+
+	wmt_incall = 1;
+	return ret;
+}
+
+static int wmt_voice_hw_free(struct snd_pcm_substream *substream)
+{
+	wmt_incall = 0;
+	return 0;
+}
+
+static struct snd_soc_ops wmt_hifi_ops = {
+	.hw_params = wmt_hifi_hw_params,
+};
+
+static struct snd_soc_ops wmt_voice_ops = {
+	.startup   = wmt_voice_startup,
+	.hw_params = wmt_voice_hw_params,
+	.hw_free   = wmt_voice_hw_free,
+};
+
+static struct snd_soc_dai_driver voice_dai[] = {
+	{
+		.name = "wmt-voice-dai",
+		.playback = {
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_8000,
+			.formats = SNDRV_PCM_FMTBIT_S16_LE,},
+		.capture = {
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_8000,
+			.formats = SNDRV_PCM_FMTBIT_S16_LE,},
+	},
+};
+
+static struct snd_soc_dai_link wmt_dai[] = {
+	{
+		.name = "WM8994",
+		.stream_name = "WM8994 HiFi",
+		.cpu_dai_name = "wmt-i2s.0",
+		.codec_dai_name = "wm8994-aif1",
+		.platform_name = "wmt-audio-pcm.0",
+		.codec_name = "wm8994-codec",
+		.init = wmt_wm8994_init,
+		.ops = &wmt_hifi_ops,
+	},
+	{
+		.name = "WM8994 Voice",
+		.stream_name = "Voice",
+		.cpu_dai_name = "wmt-voice-dai",
+		.codec_dai_name = "wm8994-aif2",
+		.codec_name = "wm8994-codec",
+		.ops = &wmt_voice_ops,
+	},
+};
+
+static struct snd_soc_card wmt = {
+	.name = "WMT_WM8994",
+	.dai_link = wmt_dai,
+	.num_links = ARRAY_SIZE(wmt_dai),
+	.suspend_post = wmt_snd_suspend_post,
+	.resume_pre = wmt_snd_resume_pre,
+};
+
+static int __init wmt_init(void)
+{
+	int ret;
+	char buf[128];
+	int len = ARRAY_SIZE(buf);
+
+	if (wmt_getsyspara("wmt.audio.i2s", buf, &len) != 0)
+		return -EINVAL;
+
+	if (strncmp(buf, "wm8994", strlen("wm8994")))
+		return -ENODEV;
+
+	wmt_snd_device = platform_device_alloc("soc-audio", -1);
+	if (!wmt_snd_device)
+		return -ENOMEM;
+
+	/* register voice DAI here */
+	ret = snd_soc_register_dais(&wmt_snd_device->dev, voice_dai, ARRAY_SIZE(voice_dai));
+	if (ret) {
+		platform_device_put(wmt_snd_device);
+		return ret;
+	}
+
+	platform_set_drvdata(wmt_snd_device, &wmt);
+	ret = platform_device_add(wmt_snd_device);
+
+	if (ret) {
+		snd_soc_unregister_dai(&wmt_snd_device->dev);
+		platform_device_put(wmt_snd_device);
+	}
+
+	return ret;
+}
+
+static void __exit wmt_exit(void)
+{
+	snd_soc_unregister_dai(&wmt_snd_device->dev);
+	platform_device_unregister(wmt_snd_device);
+}
+
+module_init(wmt_init);
+module_exit(wmt_exit);
+
+MODULE_DESCRIPTION("ALSA SoC WM8994 WMT(wm8950)");
+MODULE_AUTHOR("Loonzhong <Loonzhong@wondermedia.com.cn>");
+MODULE_LICENSE("GPL");
diff --git a/ANDROID_3.4.5/sound/usb/clock.c b/ANDROID_3.4.5/sound/usb/clock.c
index 379baad3..6026e0e1 100644
--- a/ANDROID_3.4.5/sound/usb/clock.c
+++ b/ANDROID_3.4.5/sound/usb/clock.c
@@ -225,7 +225,9 @@ static int set_sample_rate_v1(struct snd_usb_audio *chip, int iface,
 				   data, sizeof(data))) < 0) {
 		snd_printk(KERN_ERR "%d:%d:%d: cannot set freq %d to ep %#x\n",
 			   dev->devnum, iface, fmt->altsetting, rate, ep);
-		return err;
+		//return err;  //just not return, otherwise, logitech camera mic,can't use 2013-10-23
+		//printk("%s snd_usb_ctl_msg set rate err! \n", __FUNCTION__);
+		//return 0;//dbg if application set the rate that usb audio support just return 0! 2013-10-23
 	}
 
 	if ((err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC_GET_CUR,
@@ -234,10 +236,12 @@ static int set_sample_rate_v1(struct snd_usb_audio *chip, int iface,
 				   data, sizeof(data))) < 0) {
 		snd_printk(KERN_WARNING "%d:%d:%d: cannot get freq at ep %#x\n",
 			   dev->devnum, iface, fmt->altsetting, ep);
+		printk("%s snd_usb_ctl_msg get rate err!\n", __FUNCTION__);	   
 		return 0; /* some devices don't support reading */
 	}
 
 	crate = data[0] | (data[1] << 8) | (data[2] << 16);
+	printk("%s snd_usb_ctl_msg get rate 2 :%d!\n", __FUNCTION__, crate);
 	if (crate != rate) {
 		snd_printd(KERN_WARNING "current rate %d is different from the runtime rate %d\n", crate, rate);
 		// runtime->rate = crate;