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| author | Takashi Iwai <tiwai@suse.de> | 2009-12-25 14:17:48 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-12-25 14:17:48 +0100 |
| commit | 15e7f8b92aed71819411025279cd3df37f8c636b (patch) | |
| tree | 6bc90fd9fcdd4e58321e3f881b2fbcb108a6a654 /sound/pci/hda/hda_intel.c | |
| parent | ALSA: hda - Fix NID association for capture mixers (diff) | |
| parent | ALSA: hda - HDMI sticky stream tag support (diff) | |
| download | linux-15e7f8b92aed71819411025279cd3df37f8c636b.tar.xz linux-15e7f8b92aed71819411025279cd3df37f8c636b.zip | |
Merge branch 'fix/hda' into topic/hda
Diffstat (limited to 'sound/pci/hda/hda_intel.c')
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index d258569fc921..1f516e668d88 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -356,6 +356,7 @@ struct azx_dev { */ unsigned char stream_tag; /* assigned stream */ unsigned char index; /* stream index */ + int device; /* last device number assigned to */ unsigned int opened :1; unsigned int running :1; @@ -1441,10 +1442,13 @@ static int __devinit azx_codec_configure(struct azx *chip) */ /* assign a stream for the PCM */ -static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream) +static inline struct azx_dev * +azx_assign_device(struct azx *chip, struct snd_pcm_substream *substream) { int dev, i, nums; - if (stream == SNDRV_PCM_STREAM_PLAYBACK) { + struct azx_dev *res = NULL; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { dev = chip->playback_index_offset; nums = chip->playback_streams; } else { @@ -1453,10 +1457,15 @@ static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream) } for (i = 0; i < nums; i++, dev++) if (!chip->azx_dev[dev].opened) { - chip->azx_dev[dev].opened = 1; - return &chip->azx_dev[dev]; + res = &chip->azx_dev[dev]; + if (res->device == substream->pcm->device) + break; } - return NULL; + if (res) { + res->opened = 1; + res->device = substream->pcm->device; + } + return res; } /* release the assigned stream */ @@ -1505,7 +1514,7 @@ static int azx_pcm_open(struct snd_pcm_substream *substream) int err; mutex_lock(&chip->open_mutex); - azx_dev = azx_assign_device(chip, substream->stream); + azx_dev = azx_assign_device(chip, substream); if (azx_dev == NULL) { mutex_unlock(&chip->open_mutex); return -EBUSY; |