hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

sound fixes for 3.11-rc2 

Except for a slightly big OMAP changes, all rest are small, mostly
 boring changes; all either 3.11 regression fixes or stable materials.
 
 - ASoC OMAP fixes due to non-DT OMAP4 removals
 - Other ASoC driver changes (sglt5000, wm8978, wm8948, samsung)
 - Fix missing locking for snd_pcm_stop() calls in many drivers
 - Fix the blocking request_module() in OSS sequencer
 - Fix old OSS vwsnd driver builds
 - Add a new HD-audio HDMI codec ID
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iQIcBAABAgAGBQJR5/PFAAoJEGwxgFQ9KSmkqb0QAJ9pio0iRL2T+N8m4deTAn/E
 71suhNyMmqEwSt86UtOO6N/QKGCsUhQA1tXCWKgLE9Dqo4f3S7fWD0cGKDdk53QZ
 D3qwjTPvFP05gMSmAkKxPr8C48HTrngSUxdrV5BSU0goRXYa/qqP7H1+jRbIhNv+
 1WBXQJ8I0ALqLqs2MCw22snCVp6SOnYzvBn543jcJOf+weDqZ/tWlfgzhZAlIvKJ
 OSkL8t+hiEyadjW/jSKm8Xe2Onb7tqZFG/x9ZggLq5HWQm7q261f3785X6EBtAKR
 nm8yZZW88JGrVvCRwuE1hJNSptnIhFFYTc+DeQiicYMKT5ixgSG3N99sMYQcsi5J
 jSUhLHeg3KeT44s//B+Vd/++lrwz5wcvnCLrcl0LqFaVrdIaZo6UUTMUHFPnl74f
 mIqpGgQBH7dcbYUWF4X26Y2qpvbZmNaHmd++0ywVNz7ponue1DKtaGfeiYEFyzDw
 BTnLI+sqg/1Y85ydE/04izeNtcS3y+iUw6A8slB+eS6MGl3B05oVZSewJOJhMccy
 +pn0Y/BvPNf/IxcHgRQ65GZmbGTW3sWv1syPqYvXRHeiYYv9Ekf55Nr+LKPpFJdj
 M9G4BBo56Y+xC8UpHYgcGfzmW8P+rzpc+yuGZC/z6kFO0Y9LL9ABUMOHhk4mPD7d
 5/GebLUeG8gowWV8zgVP
 =xUZh
 -----END PGP SIGNATURE-----

Merge tag 'sound-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Except for a slightly big OMAP changes, all rest are small, mostly
  boring changes; all either 3.11 regression fixes or stable materials.

   - ASoC OMAP fixes due to non-DT OMAP4 removals
   - Other ASoC driver changes (sglt5000, wm8978, wm8948, samsung)
   - Fix missing locking for snd_pcm_stop() calls in many drivers
   - Fix the blocking request_module() in OSS sequencer
   - Fix old OSS vwsnd driver builds
   - Add a new HD-audio HDMI codec ID"

* tag 'sound-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (23 commits)
  ALSA: seq-oss: Initialize MIDI clients asynchronously
  ALSA: hda - Add new GPU codec ID to snd-hda
  staging: line6: Fix unlocked snd_pcm_stop() call
  [media] saa7134: Fix unlocked snd_pcm_stop() call
  ASoC: s6000: Fix unlocked snd_pcm_stop() call
  ASoC: atmel: Fix unlocked snd_pcm_stop() call
  ALSA: pxa2xx: Fix unlocked snd_pcm_stop() call
  ALSA: usx2y: Fix unlocked snd_pcm_stop() call
  ALSA: ua101: Fix unlocked snd_pcm_stop() call
  ALSA: 6fire: Fix unlocked snd_pcm_stop() call
  ALSA: atiixp: Fix unlocked snd_pcm_stop() call
  ALSA: asihpi: Fix unlocked snd_pcm_stop() call
  sound: oss/vwsnd: Always define vwsnd_mutex
  sound: oss/vwsnd: Add missing inclusion of linux/delay.h
  ASoC: wm8978: enable symmetric rates
  ASoC: omap-mcbsp: Use different method for DMA request when booted with DT
  ASoC: omap-dmic: Do not use platform_get_resource_byname() for DMA
  ASoC: omap-mcpdm: Do not use platform_get_resource_byname() for DMA
  ASoC: omap-pcm: Request the DMA channel differently when DT is involved
  ASoC: Samsung: Set RFS and BFS in slave mode
  ...
This commit is contained in:
Linus Torvalds 2013-07-18 10:48:48 -07:00
parent 61f98b0fca 256ca9c3ad
commit c66bce9b65
24 changed files with 110 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/media/pci/saa7134/saa7134-alsa.c
View File

@ -172,7 +172,9 @@ static void saa7134_irq_alsa_done(struct saa7134_dev *dev,
dprintk("irq: overrun [full=%d/%d] - Blocks in %d\n",dev->dmasound.read_count,
dev->dmasound.bufsize, dev->dmasound.blocks);
spin_unlock(&dev->slock);
snd_pcm_stream_lock(dev->dmasound.substream);
snd_pcm_stop(dev->dmasound.substream,SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(dev->dmasound.substream);
return;
}

5
drivers/staging/line6/pcm.c
View File

@ -392,8 +392,11 @@ static int snd_line6_pcm_free(struct snd_device *device)
*/
static void pcm_disconnect_substream(struct snd_pcm_substream *substream)
{
if (substream->runtime && snd_pcm_running(substream))
if (substream->runtime && snd_pcm_running(substream)) {
snd_pcm_stream_lock_irq(substream);
snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED);
snd_pcm_stream_unlock_irq(substream);
}
}
/*

2
sound/arm/pxa2xx-pcm-lib.c
View File

@ -166,7 +166,9 @@ void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id)
} else {
printk(KERN_ERR "%s: DMA error on channel %d (DCSR=%#x)\n",
rtd->params->name, dma_ch, dcsr);
snd_pcm_stream_lock(substream);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(substream);
}
}
EXPORT_SYMBOL(pxa2xx_pcm_dma_irq);

16
sound/core/seq/oss/seq_oss_init.c
View File

@ -31,6 +31,7 @@
#include <linux/export.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
/*
* common variables
@ -60,6 +61,14 @@ static void free_devinfo(void *private);
#define call_ctl(type,rec) snd_seq_kernel_client_ctl(system_client, type, rec)
/* call snd_seq_oss_midi_lookup_ports() asynchronously */
static void async_call_lookup_ports(struct work_struct *work)
{
snd_seq_oss_midi_lookup_ports(system_client);
}
static DECLARE_WORK(async_lookup_work, async_call_lookup_ports);
/*
* create sequencer client for OSS sequencer
*/
@ -85,9 +94,6 @@ snd_seq_oss_create_client(void)
system_client = rc;
debug_printk(("new client = %d\n", rc));
/* look up midi devices */
snd_seq_oss_midi_lookup_ports(system_client);
/* create annoucement receiver port */
memset(port, 0, sizeof(*port));
strcpy(port->name, "Receiver");
@ -115,6 +121,9 @@ snd_seq_oss_create_client(void)
}
rc = 0;
/* look up midi devices */
schedule_work(&async_lookup_work);
__error:
kfree(port);
return rc;
@ -160,6 +169,7 @@ receive_announce(struct snd_seq_event *ev, int direct, void *private, int atomic
int
snd_seq_oss_delete_client(void)
{
cancel_work_sync(&async_lookup_work);
if (system_client >= 0)
snd_seq_delete_kernel_client(system_client);

2
sound/core/seq/oss/seq_oss_midi.c
View File

@ -72,7 +72,7 @@ static int send_midi_event(struct seq_oss_devinfo *dp, struct snd_seq_event *ev,
* look up the existing ports
* this looks a very exhausting job.
*/
int __init
int
snd_seq_oss_midi_lookup_ports(int client)
{
struct snd_seq_client_info *clinfo;

4
sound/oss/vwsnd.c
View File

@ -149,17 +149,19 @@
#include <linux/interrupt.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <asm/visws/cobalt.h>
#include "sound_config.h"
static DEFINE_MUTEX(vwsnd_mutex);
/*****************************************************************************/
/* debug stuff */
#ifdef VWSND_DEBUG
static DEFINE_MUTEX(vwsnd_mutex);
static int shut_up = 1;
/*

3
sound/pci/asihpi/asihpi.c
View File

@ -769,7 +769,10 @@ static void snd_card_asihpi_timer_function(unsigned long data)
s->number);
ds->drained_count++;
if (ds->drained_count > 20) {
unsigned long flags;
snd_pcm_stream_lock_irqsave(s, flags);
snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock_irqrestore(s, flags);
continue;
}
} else {

2
sound/pci/atiixp.c
View File

@ -689,7 +689,9 @@ static void snd_atiixp_xrun_dma(struct atiixp *chip, struct atiixp_dma *dma)
if (! dma->substream || ! dma->running)
return;
snd_printdd("atiixp: XRUN detected (DMA %d)\n", dma->ops->type);
snd_pcm_stream_lock(dma->substream);
snd_pcm_stop(dma->substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(dma->substream);
}
/*

2
sound/pci/atiixp_modem.c
View File

@ -638,7 +638,9 @@ static void snd_atiixp_xrun_dma(struct atiixp_modem *chip,
if (! dma->substream || ! dma->running)
return;
snd_printdd("atiixp-modem: XRUN detected (DMA %d)\n", dma->ops->type);
snd_pcm_stream_lock(dma->substream);
snd_pcm_stop(dma->substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(dma->substream);
}
/*

2
sound/pci/hda/patch_hdmi.c
View File

@ -2622,6 +2622,7 @@ static const struct hda_codec_preset snd_hda_preset_hdmi[] = {
{ .id = 0x10de0043, .name = "GPU 43 HDMI/DP", .patch = patch_generic_hdmi },
{ .id = 0x10de0044, .name = "GPU 44 HDMI/DP", .patch = patch_generic_hdmi },
{ .id = 0x10de0051, .name = "GPU 51 HDMI/DP", .patch = patch_generic_hdmi },
{ .id = 0x10de0060, .name = "GPU 60 HDMI/DP", .patch = patch_generic_hdmi },
{ .id = 0x10de0067, .name = "MCP67 HDMI", .patch = patch_nvhdmi_2ch },
{ .id = 0x10de8001, .name = "MCP73 HDMI", .patch = patch_nvhdmi_2ch },
{ .id = 0x11069f80, .name = "VX900 HDMI/DP", .patch = patch_via_hdmi },
@ -2674,6 +2675,7 @@ MODULE_ALIAS("snd-hda-codec-id:10de0042");
MODULE_ALIAS("snd-hda-codec-id:10de0043");
MODULE_ALIAS("snd-hda-codec-id:10de0044");
MODULE_ALIAS("snd-hda-codec-id:10de0051");
MODULE_ALIAS("snd-hda-codec-id:10de0060");
MODULE_ALIAS("snd-hda-codec-id:10de0067");
MODULE_ALIAS("snd-hda-codec-id:10de8001");
MODULE_ALIAS("snd-hda-codec-id:11069f80");

2
sound/soc/atmel/atmel-pcm-dma.c
View File

@ -81,7 +81,9 @@ static void atmel_pcm_dma_irq(u32 ssc_sr,
/* stop RX and capture: will be enabled again at restart */
ssc_writex(prtd->ssc->regs, SSC_CR, prtd->mask->ssc_disable);
snd_pcm_stream_lock(substream);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(substream);
/* now drain RHR and read status to remove xrun condition */
ssc_readx(prtd->ssc->regs, SSC_RHR);

2
sound/soc/codecs/sgtl5000.c
View File

@ -38,7 +38,7 @@
static const struct reg_default sgtl5000_reg_defaults[] = {
{ SGTL5000_CHIP_CLK_CTRL, 0x0008 },
{ SGTL5000_CHIP_I2S_CTRL, 0x0010 },
{ SGTL5000_CHIP_SSS_CTRL, 0x0008 },
{ SGTL5000_CHIP_SSS_CTRL, 0x0010 },
{ SGTL5000_CHIP_DAC_VOL, 0x3c3c },
{ SGTL5000_CHIP_PAD_STRENGTH, 0x015f },
{ SGTL5000_CHIP_ANA_HP_CTRL, 0x1818 },

2
sound/soc/codecs/sgtl5000.h
View File

@ -347,7 +347,7 @@
#define SGTL5000_PLL_INT_DIV_MASK 0xf800
#define SGTL5000_PLL_INT_DIV_SHIFT 11
#define SGTL5000_PLL_INT_DIV_WIDTH 5
#define SGTL5000_PLL_FRAC_DIV_MASK 0x0700
#define SGTL5000_PLL_FRAC_DIV_MASK 0x07ff
#define SGTL5000_PLL_FRAC_DIV_SHIFT 0
#define SGTL5000_PLL_FRAC_DIV_WIDTH 11

1
sound/soc/codecs/wm8978.c
View File

@ -921,6 +921,7 @@ static struct snd_soc_dai_driver wm8978_dai = {
.formats = WM8978_FORMATS,
},
.ops = &wm8978_dai_ops,
.symmetric_rates = 1,
};
static int wm8978_suspend(struct snd_soc_codec *codec)

4
sound/soc/codecs/wm8994.c
View File

@ -3852,8 +3852,6 @@ static void wm8958_mic_work(struct work_struct *work)
mic_complete_work.work);
struct snd_soc_codec *codec = wm8994->hubs.codec;
dev_crit(codec->dev, "MIC WORK %x\n", wm8994->mic_status);
pm_runtime_get_sync(codec->dev);
mutex_lock(&wm8994->accdet_lock);
@ -3863,8 +3861,6 @@ static void wm8958_mic_work(struct work_struct *work)
mutex_unlock(&wm8994->accdet_lock);
pm_runtime_put(codec->dev);
dev_crit(codec->dev, "MIC WORK %x DONE\n", wm8994->mic_status);
}
static irqreturn_t wm8958_mic_irq(int irq, void *data)

39
sound/soc/omap/mcbsp.c
View File

@ -1012,28 +1012,33 @@ int omap_mcbsp_init(struct platform_device *pdev)
}
}
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx");
if (!res) {
dev_err(&pdev->dev, "invalid rx DMA channel\n");
return -ENODEV;
}
/* RX DMA request number, and port address configuration */
mcbsp->dma_req[1] = res->start;
mcbsp->dma_data[1].filter_data = &mcbsp->dma_req[1];
mcbsp->dma_data[1].addr = omap_mcbsp_dma_reg_params(mcbsp, 1);
mcbsp->dma_data[1].maxburst = 4;
if (!pdev->dev.of_node) {
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx");
if (!res) {
dev_err(&pdev->dev, "invalid tx DMA channel\n");
return -ENODEV;
}
mcbsp->dma_req[0] = res->start;
mcbsp->dma_data[0].filter_data = &mcbsp->dma_req[0];
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx");
if (!res) {
dev_err(&pdev->dev, "invalid tx DMA channel\n");
return -ENODEV;
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx");
if (!res) {
dev_err(&pdev->dev, "invalid rx DMA channel\n");
return -ENODEV;
}
mcbsp->dma_req[1] = res->start;
mcbsp->dma_data[1].filter_data = &mcbsp->dma_req[1];
} else {
mcbsp->dma_data[0].filter_data = "tx";
mcbsp->dma_data[1].filter_data = "rx";
}
/* TX DMA request number, and port address configuration */
mcbsp->dma_req[0] = res->start;
mcbsp->dma_data[0].filter_data = &mcbsp->dma_req[0];
mcbsp->dma_data[0].addr = omap_mcbsp_dma_reg_params(mcbsp, 0);
mcbsp->dma_data[0].maxburst = 4;
mcbsp->dma_data[1].addr = omap_mcbsp_dma_reg_params(mcbsp, 1);
mcbsp->dma_data[1].maxburst = 4;
mcbsp->fclk = clk_get(&pdev->dev, "fck");
if (IS_ERR(mcbsp->fclk)) {
ret = PTR_ERR(mcbsp->fclk);

11
sound/soc/omap/omap-dmic.c
View File

@ -57,7 +57,6 @@ struct omap_dmic {
struct mutex mutex;
struct snd_dmaengine_dai_dma_data dma_data;
unsigned int dma_req;
};
static inline void omap_dmic_write(struct omap_dmic *dmic, u16 reg, u32 val)
@ -478,15 +477,7 @@ static int asoc_dmic_probe(struct platform_device *pdev)
}
dmic->dma_data.addr = res->start + OMAP_DMIC_DATA_REG;
res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (!res) {
dev_err(dmic->dev, "invalid dma resource\n");
ret = -ENODEV;
goto err_put_clk;
}
dmic->dma_req = res->start;
dmic->dma_data.filter_data = &dmic->dma_req;
dmic->dma_data.filter_data = "up_link";
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mpu");
if (!res) {

16
sound/soc/omap/omap-mcpdm.c
View File

@ -66,7 +66,6 @@ struct omap_mcpdm {
bool restart;
struct snd_dmaengine_dai_dma_data dma_data[2];
unsigned int dma_req[2];
};
/*
@ -477,19 +476,8 @@ static int asoc_mcpdm_probe(struct platform_device *pdev)
mcpdm->dma_data[0].addr = res->start + MCPDM_REG_DN_DATA;
mcpdm->dma_data[1].addr = res->start + MCPDM_REG_UP_DATA;
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "dn_link");
if (!res)
return -ENODEV;
mcpdm->dma_req[0] = res->start;
mcpdm->dma_data[0].filter_data = &mcpdm->dma_req[0];
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "up_link");
if (!res)
return -ENODEV;
mcpdm->dma_req[1] = res->start;
mcpdm->dma_data[1].filter_data = &mcpdm->dma_req[1];
mcpdm->dma_data[0].filter_data = "dn_link";
mcpdm->dma_data[1].filter_data = "up_link";
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mpu");
if (res == NULL)

17
sound/soc/omap/omap-pcm.c
View File

@ -113,14 +113,25 @@ static int omap_pcm_open(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_dmaengine_dai_dma_data *dma_data;
int ret;
snd_soc_set_runtime_hwparams(substream, &omap_pcm_hardware);
dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
return snd_dmaengine_pcm_open_request_chan(substream,
omap_dma_filter_fn,
dma_data->filter_data);
/* DT boot: filter_data is the DMA name */
if (rtd->cpu_dai->dev->of_node) {
struct dma_chan *chan;
chan = dma_request_slave_channel(rtd->cpu_dai->dev,
dma_data->filter_data);
ret = snd_dmaengine_pcm_open(substream, chan);
} else {
ret = snd_dmaengine_pcm_open_request_chan(substream,
omap_dma_filter_fn,
dma_data->filter_data);
}
return ret;
}
static int omap_pcm_mmap(struct snd_pcm_substream *substream,

2
sound/soc/s6000/s6000-pcm.c
View File

@ -128,7 +128,9 @@ static irqreturn_t s6000_pcm_irq(int irq, void *data)
substream->runtime &&
snd_pcm_running(substream)) {
dev_dbg(pcm->dev, "xrun\n");
snd_pcm_stream_lock(substream);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(substream);
ret = IRQ_HANDLED;
}

8
sound/soc/samsung/i2s.c
View File

@ -742,13 +742,13 @@ static int config_setup(struct i2s_dai *i2s)
return -EAGAIN;
}
/* Don't bother RFS, BFS & PSR in Slave mode */
if (is_slave(i2s))
return 0;
set_bfs(i2s, bfs);
set_rfs(i2s, rfs);
/* Don't bother with PSR in Slave mode */
if (is_slave(i2s))
return 0;
if (!(i2s->quirks & QUIRK_NO_MUXPSR)) {
psr = i2s->rclk_srcrate / i2s->frmclk / rfs;
writel(((psr - 1) << 8) | PSR_PSREN, i2s->addr + I2SPSR);

12
sound/usb/6fire/pcm.c
View File

@ -639,17 +639,25 @@ int usb6fire_pcm_init(struct sfire_chip *chip)
void usb6fire_pcm_abort(struct sfire_chip *chip)
{
struct pcm_runtime *rt = chip->pcm;
unsigned long flags;
int i;
if (rt) {
rt->panic = true;
if (rt->playback.instance)
if (rt->playback.instance) {
snd_pcm_stream_lock_irqsave(rt->playback.instance, flags);
snd_pcm_stop(rt->playback.instance,
SNDRV_PCM_STATE_XRUN);
if (rt->capture.instance)
snd_pcm_stream_unlock_irqrestore(rt->playback.instance, flags);
}
if (rt->capture.instance) {
snd_pcm_stream_lock_irqsave(rt->capture.instance, flags);
snd_pcm_stop(rt->capture.instance,
SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock_irqrestore(rt->capture.instance, flags);
}
for (i = 0; i < PCM_N_URBS; i++) {
usb_poison_urb(&rt->in_urbs[i].instance);

14
sound/usb/misc/ua101.c
View File

@ -613,14 +613,24 @@ static int start_usb_playback(struct ua101 *ua)
static void abort_alsa_capture(struct ua101 *ua)
{
if (test_bit(ALSA_CAPTURE_RUNNING, &ua->states))
unsigned long flags;
if (test_bit(ALSA_CAPTURE_RUNNING, &ua->states)) {
snd_pcm_stream_lock_irqsave(ua->capture.substream, flags);
snd_pcm_stop(ua->capture.substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock_irqrestore(ua->capture.substream, flags);
}
}
static void abort_alsa_playback(struct ua101 *ua)
{
if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states))
unsigned long flags;
if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states)) {
snd_pcm_stream_lock_irqsave(ua->playback.substream, flags);
snd_pcm_stop(ua->playback.substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock_irqrestore(ua->playback.substream, flags);
}
}
static int set_stream_hw(struct ua101 *ua, struct snd_pcm_substream *substream,

4
sound/usb/usx2y/usbusx2yaudio.c
View File

@ -273,7 +273,11 @@ static void usX2Y_clients_stop(struct usX2Ydev *usX2Y)
struct snd_usX2Y_substream *subs = usX2Y->subs[s];
if (subs) {
if (atomic_read(&subs->state) >= state_PRERUNNING) {
unsigned long flags;
snd_pcm_stream_lock_irqsave(subs->pcm_substream, flags);
snd_pcm_stop(subs->pcm_substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock_irqrestore(subs->pcm_substream, flags);
}
for (u = 0; u < NRURBS; u++) {
struct urb *urb = subs->urb[u];