Merge branch 'fix/misc' into for-linus

14 files changed, 157 insertions, 55 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 6e64547..c3106cd 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2582,6 +2582,13 @@ S:	Maintained
 F:	drivers/hwmon/f75375s.c
 F:	include/linux/f75375s.h
 
+FIREWIRE AUDIO DRIVERS
+M:	Clemens Ladisch <clemens@ladisch.de>
+L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
+T:	git git://git.alsa-project.org/alsa-kernel.git
+S:	Maintained
+F:	sound/firewire/
+
 FIREWIRE SUBSYSTEM
 M:	Stefan Richter <stefanr@s5r6.in-berlin.de>
 L:	linux1394-devel@lists.sourceforge.net
diff --git a/sound/core/control.c b/sound/core/control.c
index 5d98194..f8c5be4 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -704,13 +704,12 @@ static int snd_ctl_elem_list(struct snd_card *card,
 	struct snd_ctl_elem_list list;
 	struct snd_kcontrol *kctl;
 	struct snd_ctl_elem_id *dst, *id;
-	unsigned int offset, space, first, jidx;
+	unsigned int offset, space, jidx;
 	
 	if (copy_from_user(&list, _list, sizeof(list)))
 		return -EFAULT;
 	offset = list.offset;
 	space = list.space;
-	first = 0;
 	/* try limit maximum space */
 	if (space > 16384)
 		return -ENOMEM;
diff --git a/sound/core/init.c b/sound/core/init.c
index 30ecad4..2c041bb 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -342,7 +342,6 @@ static const struct file_operations snd_shutdown_f_ops =
 int snd_card_disconnect(struct snd_card *card)
 {
 	struct snd_monitor_file *mfile;
-	struct file *file;
 	int err;
 
 	if (!card)
@@ -366,8 +365,6 @@ int snd_card_disconnect(struct snd_card *card)
 	
 	spin_lock(&card->files_lock);
 	list_for_each_entry(mfile, &card->files_list, list) {
-		file = mfile->file;
-
 		/* it's critical part, use endless loop */
 		/* we have no room to fail */
 		mfile->disconnected_f_op = mfile->file->f_op;
diff --git a/sound/core/oss/linear.c b/sound/core/oss/linear.c
index 13b3f6f..2045697 100644
--- a/sound/core/oss/linear.c
+++ b/sound/core/oss/linear.c
@@ -90,11 +90,8 @@ static snd_pcm_sframes_t linear_transfer(struct snd_pcm_plugin *plugin,
 			       struct snd_pcm_plugin_channel *dst_channels,
 			       snd_pcm_uframes_t frames)
 {
-	struct linear_priv *data;
-
 	if (snd_BUG_ON(!plugin || !src_channels || !dst_channels))
 		return -ENXIO;
-	data = (struct linear_priv *)plugin->extra_data;
 	if (frames == 0)
 		return 0;
 #ifdef CONFIG_SND_DEBUG
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index abfeff16..f134130 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -1756,8 +1756,18 @@ static int wait_for_avail(struct snd_pcm_substream *substream,
 	wait_queue_t wait;
 	int err = 0;
 	snd_pcm_uframes_t avail = 0;
-	long tout;
-
+	long wait_time, tout;
+
+	if (runtime->no_period_wakeup)
+		wait_time = MAX_SCHEDULE_TIMEOUT;
+	else {
+		wait_time = 10;
+		if (runtime->rate) {
+			long t = runtime->period_size * 2 / runtime->rate;
+			wait_time = max(t, wait_time);
+		}
+		wait_time = msecs_to_jiffies(wait_time * 1000);
+	}
 	init_waitqueue_entry(&wait, current);
 	add_wait_queue(&runtime->tsleep, &wait);
 	for (;;) {
@@ -1765,9 +1775,8 @@ static int wait_for_avail(struct snd_pcm_substream *substream,
 			err = -ERESTARTSYS;
 			break;
 		}
-		set_current_state(TASK_INTERRUPTIBLE);
 		snd_pcm_stream_unlock_irq(substream);
-		tout = schedule_timeout(msecs_to_jiffies(10000));
+		tout = schedule_timeout_interruptible(wait_time);
 		snd_pcm_stream_lock_irq(substream);
 		switch (runtime->status->state) {
 		case SNDRV_PCM_STATE_SUSPENDED:
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 1a07750..1c6be91 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -1481,11 +1481,20 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream,
 			break; /* all drained */
 		init_waitqueue_entry(&wait, current);
 		add_wait_queue(&to_check->sleep, &wait);
-		set_current_state(TASK_INTERRUPTIBLE);
 		snd_pcm_stream_unlock_irq(substream);
 		up_read(&snd_pcm_link_rwsem);
 		snd_power_unlock(card);
-		tout = schedule_timeout(10 * HZ);
+		if (runtime->no_period_wakeup)
+			tout = MAX_SCHEDULE_TIMEOUT;
+		else {
+			tout = 10;
+			if (runtime->rate) {
+				long t = runtime->period_size * 2 / runtime->rate;
+				tout = max(t, tout);
+			}
+			tout = msecs_to_jiffies(tout * 1000);
+		}
+		tout = schedule_timeout_interruptible(tout);
 		snd_power_lock(card);
 		down_read(&snd_pcm_link_rwsem);
 		snd_pcm_stream_lock_irq(substream);
@@ -1518,13 +1527,11 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream,
 static int snd_pcm_drop(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime;
-	struct snd_card *card;
 	int result = 0;
 	
 	if (PCM_RUNTIME_CHECK(substream))
 		return -ENXIO;
 	runtime = substream->runtime;
-	card = substream->pcm->card;
 
 	if (runtime->status->state == SNDRV_PCM_STATE_OPEN ||
 	    runtime->status->state == SNDRV_PCM_STATE_DISCONNECTED ||
@@ -2056,7 +2063,6 @@ static int snd_pcm_open_file(struct file *file,
 {
 	struct snd_pcm_file *pcm_file;
 	struct snd_pcm_substream *substream;
-	struct snd_pcm_str *str;
 	int err;
 
 	if (rpcm_file)
@@ -2073,7 +2079,6 @@ static int snd_pcm_open_file(struct file *file,
 	}
 	pcm_file->substream = substream;
 	if (substream->ref_count == 1) {
-		str = substream->pstr;
 		substream->file = pcm_file;
 		substream->pcm_release = pcm_release_private;
 	}
@@ -3015,11 +3020,9 @@ static const struct vm_operations_struct snd_pcm_vm_ops_status =
 static int snd_pcm_mmap_status(struct snd_pcm_substream *substream, struct file *file,
 			       struct vm_area_struct *area)
 {
-	struct snd_pcm_runtime *runtime;
 	long size;
 	if (!(area->vm_flags & VM_READ))
 		return -EINVAL;
-	runtime = substream->runtime;
 	size = area->vm_end - area->vm_start;
 	if (size != PAGE_ALIGN(sizeof(struct snd_pcm_mmap_status)))
 		return -EINVAL;
@@ -3054,11 +3057,9 @@ static const struct vm_operations_struct snd_pcm_vm_ops_control =
 static int snd_pcm_mmap_control(struct snd_pcm_substream *substream, struct file *file,
 				struct vm_area_struct *area)
 {
-	struct snd_pcm_runtime *runtime;
 	long size;
 	if (!(area->vm_flags & VM_READ))
 		return -EINVAL;
-	runtime = substream->runtime;
 	size = area->vm_end - area->vm_start;
 	if (size != PAGE_ALIGN(sizeof(struct snd_pcm_mmap_control)))
 		return -EINVAL;
diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c
index e7a8e9e..f907736 100644
--- a/sound/core/seq/seq_queue.c
+++ b/sound/core/seq/seq_queue.c
@@ -467,13 +467,11 @@ int snd_seq_queue_timer_open(int queueid)
 int snd_seq_queue_timer_close(int queueid)
 {
 	struct snd_seq_queue *queue;
-	struct snd_seq_timer *tmr;
 	int result = 0;
 
 	queue = queueptr(queueid);
 	if (queue == NULL)
 		return -EINVAL;
-	tmr = queue->timer;
 	snd_seq_timer_close(queue);
 	queuefree(queue);
 	return result;
diff --git a/sound/usb/card.c b/sound/usb/card.c
index a90662a..220c616 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -48,6 +48,7 @@
 #include <linux/usb/audio.h>
 #include <linux/usb/audio-v2.h>
 
+#include <sound/control.h>
 #include <sound/core.h>
 #include <sound/info.h>
 #include <sound/pcm.h>
@@ -492,14 +493,6 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
 		}
 	}
 
-	chip->txfr_quirk = 0;
-	err = 1; /* continue */
-	if (quirk && quirk->ifnum != QUIRK_NO_INTERFACE) {
-		/* need some special handlings */
-		if ((err = snd_usb_create_quirk(chip, intf, &usb_audio_driver, quirk)) < 0)
-			goto __error;
-	}
-
 	/*
 	 * For devices with more than one control interface, we assume the
 	 * first contains the audio controls. We might need a more specific
@@ -508,6 +501,14 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
 	if (!chip->ctrl_intf)
 		chip->ctrl_intf = alts;
 
+	chip->txfr_quirk = 0;
+	err = 1; /* continue */
+	if (quirk && quirk->ifnum != QUIRK_NO_INTERFACE) {
+		/* need some special handlings */
+		if ((err = snd_usb_create_quirk(chip, intf, &usb_audio_driver, quirk)) < 0)
+			goto __error;
+	}
+
 	if (err > 0) {
 		/* create normal USB audio interfaces */
 		if (snd_usb_create_streams(chip, ifnum) < 0 ||
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index eab06ed..c22fa76 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -86,16 +86,6 @@ struct mixer_build {
 	const struct usbmix_selector_map *selector_map;
 };
 
-enum {
-	USB_MIXER_BOOLEAN,
-	USB_MIXER_INV_BOOLEAN,
-	USB_MIXER_S8,
-	USB_MIXER_U8,
-	USB_MIXER_S16,
-	USB_MIXER_U16,
-};
-
-
 /*E-mu 0202/0404/0204 eXtension Unit(XU) control*/
 enum {
 	USB_XU_CLOCK_RATE 		= 0xe301,
@@ -535,20 +525,21 @@ static int check_matrix_bitmap(unsigned char *bmap, int ich, int och, int num_ou
  * if failed, give up and free the control instance.
  */
 
-static int add_control_to_empty(struct mixer_build *state, struct snd_kcontrol *kctl)
+int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer,
+			      struct snd_kcontrol *kctl)
 {
 	struct usb_mixer_elem_info *cval = kctl->private_data;
 	int err;
 
-	while (snd_ctl_find_id(state->chip->card, &kctl->id))
+	while (snd_ctl_find_id(mixer->chip->card, &kctl->id))
 		kctl->id.index++;
-	if ((err = snd_ctl_add(state->chip->card, kctl)) < 0) {
+	if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) {
 		snd_printd(KERN_ERR "cannot add control (err = %d)\n", err);
 		return err;
 	}
 	cval->elem_id = &kctl->id;
-	cval->next_id_elem = state->mixer->id_elems[cval->id];
-	state->mixer->id_elems[cval->id] = cval;
+	cval->next_id_elem = mixer->id_elems[cval->id];
+	mixer->id_elems[cval->id] = cval;
 	return 0;
 }
 
@@ -984,6 +975,9 @@ static struct snd_kcontrol_new usb_feature_unit_ctl_ro = {
 	.put = NULL,
 };
 
+/* This symbol is exported in order to allow the mixer quirks to
+ * hook up to the standard feature unit control mechanism */
+struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl;
 
 /*
  * build a feature control
@@ -1176,7 +1170,7 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
 
 	snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n",
 		    cval->id, kctl->id.name, cval->channels, cval->min, cval->max, cval->res);
-	add_control_to_empty(state, kctl);
+	snd_usb_mixer_add_control(state->mixer, kctl);
 }
 
 
@@ -1340,7 +1334,7 @@ static void build_mixer_unit_ctl(struct mixer_build *state,
 
 	snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n",
 		    cval->id, kctl->id.name, cval->channels, cval->min, cval->max);
-	add_control_to_empty(state, kctl);
+	snd_usb_mixer_add_control(state->mixer, kctl);
 }
 
 
@@ -1641,7 +1635,7 @@ static int build_audio_procunit(struct mixer_build *state, int unitid, void *raw
 
 		snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n",
 			    cval->id, kctl->id.name, cval->channels, cval->min, cval->max);
-		if ((err = add_control_to_empty(state, kctl)) < 0)
+		if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0)
 			return err;
 	}
 	return 0;
@@ -1858,7 +1852,7 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, void
 
 	snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n",
 		    cval->id, kctl->id.name, desc->bNrInPins);
-	if ((err = add_control_to_empty(state, kctl)) < 0)
+	if ((err = snd_usb_mixer_add_control(state->mixer, kctl)) < 0)
 		return err;
 
 	return 0;
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h
index b4a2c81..ae1a14d 100644
--- a/sound/usb/mixer.h
+++ b/sound/usb/mixer.h
@@ -24,7 +24,16 @@ struct usb_mixer_interface {
 	u8 xonar_u1_status;
 };
 
-#define MAX_CHANNELS	10	/* max logical channels */
+#define MAX_CHANNELS	16	/* max logical channels */
+
+enum {
+	USB_MIXER_BOOLEAN,
+	USB_MIXER_INV_BOOLEAN,
+	USB_MIXER_S8,
+	USB_MIXER_U8,
+	USB_MIXER_S16,
+	USB_MIXER_U16,
+};
 
 struct usb_mixer_elem_info {
 	struct usb_mixer_interface *mixer;
@@ -55,4 +64,7 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
 void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer);
 int snd_usb_mixer_activate(struct usb_mixer_interface *mixer);
 
+int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer,
+			      struct snd_kcontrol *kctl);
+
 #endif /* __USBMIXER_H */
diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 9146cff..3d0f487 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -40,6 +40,8 @@
 #include "mixer_quirks.h"
 #include "helper.h"
 
+extern struct snd_kcontrol_new *snd_usb_feature_unit_ctl;
+
 /*
  * Sound Blaster remote control configuration
  *
@@ -492,6 +494,69 @@ static int snd_nativeinstruments_create_mixer(struct usb_mixer_interface *mixer,
 	return err;
 }
 
+/* M-Audio FastTrack Ultra quirks */
+
+/* private_free callback */
+static void usb_mixer_elem_free(struct snd_kcontrol *kctl)
+{
+	kfree(kctl->private_data);
+	kctl->private_data = NULL;
+}
+
+static int snd_maudio_ftu_create_ctl(struct usb_mixer_interface *mixer,
+				     int in, int out, const char *name)
+{
+	struct usb_mixer_elem_info *cval;
+	struct snd_kcontrol *kctl;
+
+	cval = kzalloc(sizeof(*cval), GFP_KERNEL);
+	if (!cval)
+		return -ENOMEM;
+
+	cval->id = 5;
+	cval->mixer = mixer;
+	cval->val_type = USB_MIXER_S16;
+	cval->channels = 1;
+	cval->control = out + 1;
+	cval->cmask = 1 << in;
+
+	kctl = snd_ctl_new1(snd_usb_feature_unit_ctl, cval);
+	if (!kctl) {
+		kfree(cval);
+		return -ENOMEM;
+	}
+
+	snprintf(kctl->id.name, sizeof(kctl->id.name), name);
+	kctl->private_free = usb_mixer_elem_free;
+	return snd_usb_mixer_add_control(mixer, kctl);
+}
+
+static int snd_maudio_ftu_create_mixer(struct usb_mixer_interface *mixer)
+{
+	char name[64];
+	int in, out, err;
+
+	for (out = 0; out < 8; out++) {
+		for (in = 0; in < 8; in++) {
+			snprintf(name, sizeof(name),
+				 "AIn%d - Out%d Capture Volume", in  + 1, out + 1);
+			err = snd_maudio_ftu_create_ctl(mixer, in, out, name);
+			if (err < 0)
+				return err;
+		}
+
+		for (in = 8; in < 16; in++) {
+			snprintf(name, sizeof(name),
+				 "DIn%d - Out%d Playback Volume", in - 7, out + 1);
+			err = snd_maudio_ftu_create_ctl(mixer, in, out, name);
+			if (err < 0)
+				return err;
+		}
+	}
+
+	return 0;
+}
+
 void snd_emuusb_set_samplerate(struct snd_usb_audio *chip,
 			       unsigned char samplerate_id)
 {
@@ -533,6 +598,11 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
 					      snd_audigy2nx_proc_read);
 		break;
 
+	case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */
+	case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */
+		err = snd_maudio_ftu_create_mixer(mixer);
+		break;
+
 	case USB_ID(0x0b05, 0x1739):
 	case USB_ID(0x0b05, 0x1743):
 		err = snd_xonar_u1_controls_create(mixer);
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 78792a8..0b2ae8e 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -1988,7 +1988,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 		.data = & (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
-				.type = QUIRK_IGNORE_INTERFACE
+				.type = QUIRK_AUDIO_STANDARD_MIXER,
 			},
 			{
 				.ifnum = 1,
@@ -2055,7 +2055,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 		.data = & (const struct snd_usb_audio_quirk[]) {
 			{
 				.ifnum = 0,
-				.type = QUIRK_IGNORE_INTERFACE
+				.type = QUIRK_AUDIO_STANDARD_MIXER,
 			},
 			{
 				.ifnum = 1,
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index bd13d72..2e969cb 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -19,6 +19,7 @@
 #include <linux/usb.h>
 #include <linux/usb/audio.h>
 
+#include <sound/control.h>
 #include <sound/core.h>
 #include <sound/info.h>
 #include <sound/pcm.h>
@@ -263,6 +264,20 @@ static int create_uaxx_quirk(struct snd_usb_audio *chip,
 }
 
 /*
+ * Create a standard mixer for the specified interface.
+ */
+static int create_standard_mixer_quirk(struct snd_usb_audio *chip,
+				       struct usb_interface *iface,
+				       struct usb_driver *driver,
+				       const struct snd_usb_audio_quirk *quirk)
+{
+	if (quirk->ifnum < 0)
+		return 0;
+
+	return snd_usb_create_mixer(chip, quirk->ifnum, 0);
+}
+
+/*
  * audio-interface quirks
  *
  * returns zero if no standard audio/MIDI parsing is needed.
@@ -294,7 +309,8 @@ int snd_usb_create_quirk(struct snd_usb_audio *chip,
 		[QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
 		[QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
 		[QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
-		[QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk
+		[QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk,
+		[QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk,
 	};
 
 	if (quirk->type < QUIRK_TYPE_COUNT) {
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index 32f2a97..1e79986 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -84,6 +84,7 @@ enum quirk_type {
 	QUIRK_AUDIO_FIXED_ENDPOINT,
 	QUIRK_AUDIO_EDIROL_UAXX,
 	QUIRK_AUDIO_ALIGN_TRANSFER,
+	QUIRK_AUDIO_STANDARD_MIXER,
 
 	QUIRK_TYPE_COUNT
 };