diff options
Diffstat (limited to 'sound/pci/oxygen/oxygen_pcm.c')
| -rw-r--r-- | sound/pci/oxygen/oxygen_pcm.c | 53 |
1 files changed, 37 insertions, 16 deletions
diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c index b17c405..c4ad65a 100644 --- a/sound/pci/oxygen/oxygen_pcm.c +++ b/sound/pci/oxygen/oxygen_pcm.c @@ -24,6 +24,16 @@ #include <sound/pcm_params.h> #include "oxygen.h" +/* most DMA channels have a 16-bit counter for 32-bit words */ +#define BUFFER_BYTES_MAX ((1 << 16) * 4) +/* the multichannel DMA channel has a 24-bit counter */ +#define BUFFER_BYTES_MAX_MULTICH ((1 << 24) * 4) + +#define PERIOD_BYTES_MIN 64 + +#define DEFAULT_BUFFER_BYTES (BUFFER_BYTES_MAX / 2) +#define DEFAULT_BUFFER_BYTES_MULTICH (1024 * 1024) + static const struct snd_pcm_hardware oxygen_stereo_hardware = { .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | @@ -44,11 +54,11 @@ static const struct snd_pcm_hardware oxygen_stereo_hardware = { .rate_max = 192000, .channels_min = 2, .channels_max = 2, - .buffer_bytes_max = 256 * 1024, - .period_bytes_min = 128, - .period_bytes_max = 128 * 1024, + .buffer_bytes_max = BUFFER_BYTES_MAX, + .period_bytes_min = PERIOD_BYTES_MIN, + .period_bytes_max = BUFFER_BYTES_MAX / 2, .periods_min = 2, - .periods_max = 2048, + .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN, }; static const struct snd_pcm_hardware oxygen_multichannel_hardware = { .info = SNDRV_PCM_INFO_MMAP | @@ -70,11 +80,11 @@ static const struct snd_pcm_hardware oxygen_multichannel_hardware = { .rate_max = 192000, .channels_min = 2, .channels_max = 8, - .buffer_bytes_max = 2048 * 1024, - .period_bytes_min = 128, - .period_bytes_max = 256 * 1024, + .buffer_bytes_max = BUFFER_BYTES_MAX_MULTICH, + .period_bytes_min = PERIOD_BYTES_MIN, + .period_bytes_max = BUFFER_BYTES_MAX_MULTICH / 2, .periods_min = 2, - .periods_max = 16384, + .periods_max = BUFFER_BYTES_MAX_MULTICH / PERIOD_BYTES_MIN, }; static const struct snd_pcm_hardware oxygen_ac97_hardware = { .info = SNDRV_PCM_INFO_MMAP | @@ -88,11 +98,11 @@ static const struct snd_pcm_hardware oxygen_ac97_hardware = { .rate_max = 48000, .channels_min = 2, .channels_max = 2, - .buffer_bytes_max = 256 * 1024, - .period_bytes_min = 128, - .period_bytes_max = 128 * 1024, + .buffer_bytes_max = BUFFER_BYTES_MAX, + .period_bytes_min = PERIOD_BYTES_MIN, + .period_bytes_max = BUFFER_BYTES_MAX / 2, .periods_min = 2, - .periods_max = 2048, + .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN, }; static const struct snd_pcm_hardware *const oxygen_hardware[PCM_COUNT] = { @@ -155,6 +165,12 @@ static int oxygen_open(struct snd_pcm_substream *substream, if (err < 0) return err; } + if (channel == PCM_MULTICH) { + err = snd_pcm_hw_constraint_minmax + (runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 0, 8192000); + if (err < 0) + return err; + } snd_pcm_set_sync(substream); chip->streams[channel] = substream; @@ -517,6 +533,7 @@ static int oxygen_trigger(struct snd_pcm_substream *substream, int cmd) switch (cmd) { case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_SUSPEND: pausing = 0; break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: @@ -663,12 +680,14 @@ int oxygen_pcm_init(struct oxygen *chip) snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), - 512 * 1024, 2048 * 1024); + DEFAULT_BUFFER_BYTES_MULTICH, + BUFFER_BYTES_MAX_MULTICH); if (ins) snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), - 128 * 1024, 256 * 1024); + DEFAULT_BUFFER_BYTES, + BUFFER_BYTES_MAX); } outs = !!(chip->model->pcm_dev_cfg & PLAYBACK_1_TO_SPDIF); @@ -688,7 +707,8 @@ int oxygen_pcm_init(struct oxygen *chip) strcpy(pcm->name, "Digital"); snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), - 128 * 1024, 256 * 1024); + DEFAULT_BUFFER_BYTES, + BUFFER_BYTES_MAX); } if (chip->has_ac97_1) { @@ -718,7 +738,8 @@ int oxygen_pcm_init(struct oxygen *chip) strcpy(pcm->name, outs ? "Front Panel" : "Analog 2"); snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), - 128 * 1024, 256 * 1024); + DEFAULT_BUFFER_BYTES, + BUFFER_BYTES_MAX); } return 0; } |
