diff options
Diffstat (limited to 'sound/core/pcm_dmaengine.c')
-rw-r--r-- | sound/core/pcm_dmaengine.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/sound/core/pcm_dmaengine.c b/sound/core/pcm_dmaengine.c index 94d0873..aa924d9 100644 --- a/sound/core/pcm_dmaengine.c +++ b/sound/core/pcm_dmaengine.c @@ -63,19 +63,23 @@ int snd_hwparams_to_dma_slave_config(const struct snd_pcm_substream *substream, struct dma_slave_config *slave_config) { enum dma_slave_buswidth buswidth; - int bits; - bits = snd_pcm_format_physical_width(params_format(params)); - if (bits < 8 || bits > 64) - return -EINVAL; - else if (bits == 8) + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S8: buswidth = DMA_SLAVE_BUSWIDTH_1_BYTE; - else if (bits == 16) + break; + case SNDRV_PCM_FORMAT_S16_LE: buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES; - else if (bits <= 32) + break; + case SNDRV_PCM_FORMAT_S18_3LE: + case SNDRV_PCM_FORMAT_S20_3LE: + case SNDRV_PCM_FORMAT_S24_LE: + case SNDRV_PCM_FORMAT_S32_LE: buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES; - else - buswidth = DMA_SLAVE_BUSWIDTH_8_BYTES; + break; + default: + return -EINVAL; + } if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { slave_config->direction = DMA_MEM_TO_DEV; |