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| author | Clemens Ladisch <clemens@ladisch.de> | 2014-09-21 22:52:46 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-09-22 08:57:01 +0200 |
| commit | 4e9c58cb1219bcbcf6e698ed6541b275048bfa88 (patch) | |
| tree | 6cb446fbb76f202714fb52bddfdc6acd380ac445 /sound/pci | |
| parent | 5ae0095d00d48be60b2e3cbdb79a35a7d796d96b (diff) | |
| download | linux-4e9c58cb1219bcbcf6e698ed6541b275048bfa88.tar.gz | |
ALSA: oxygen: set fifo_size
Allow the driver to report the hardware FIFO size. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/oxygen/oxygen_pcm.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c index cc0bcd9f3350..02828240ba15 100644 --- a/sound/pci/oxygen/oxygen_pcm.c +++ b/sound/pci/oxygen/oxygen_pcm.c @@ -29,6 +29,9 @@ /* the multichannel DMA channel has a 24-bit counter */ #define BUFFER_BYTES_MAX_MULTICH ((1 << 24) * 4) +#define FIFO_BYTES 256 +#define FIFO_BYTES_MULTICH 1024 + #define PERIOD_BYTES_MIN 64 #define DEFAULT_BUFFER_BYTES (BUFFER_BYTES_MAX / 2) @@ -60,6 +63,7 @@ static const struct snd_pcm_hardware oxygen_stereo_hardware = { .period_bytes_max = BUFFER_BYTES_MAX, .periods_min = 1, .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN, + .fifo_size = FIFO_BYTES, }; static const struct snd_pcm_hardware oxygen_multichannel_hardware = { .info = SNDRV_PCM_INFO_MMAP | @@ -87,6 +91,7 @@ static const struct snd_pcm_hardware oxygen_multichannel_hardware = { .period_bytes_max = BUFFER_BYTES_MAX_MULTICH, .periods_min = 1, .periods_max = BUFFER_BYTES_MAX_MULTICH / PERIOD_BYTES_MIN, + .fifo_size = FIFO_BYTES_MULTICH, }; static const struct snd_pcm_hardware oxygen_ac97_hardware = { .info = SNDRV_PCM_INFO_MMAP | @@ -106,6 +111,7 @@ static const struct snd_pcm_hardware oxygen_ac97_hardware = { .period_bytes_max = BUFFER_BYTES_MAX, .periods_min = 1, .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN, + .fifo_size = FIFO_BYTES, }; static const struct snd_pcm_hardware *const oxygen_hardware[PCM_COUNT] = { @@ -141,6 +147,10 @@ static int oxygen_open(struct snd_pcm_substream *substream, runtime->hw.rates &= ~(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_64000); runtime->hw.rate_min = 44100; + /* fall through */ + case PCM_A: + case PCM_B: + runtime->hw.fifo_size = 0; break; case PCM_MULTICH: runtime->hw.channels_max = chip->model.dac_channels_pcm; |