static int tegra_pcm_new(struct snd_card *card, struct snd_soc_dai *dai, struct snd_pcm *pcm) { int ret = 0; if (!card->dev->dma_mask) card->dev->dma_mask = &tegra_dma_mask; if (!card->dev->coherent_dma_mask) card->dev->coherent_dma_mask = 0xffffffff; if (dai->driver->playback.channels_min) { ret = tegra_pcm_preallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK); if (ret) goto err; } if (dai->driver->capture.channels_min) { ret = tegra_pcm_preallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_CAPTURE); if (ret) goto err_free_play; } return 0; err_free_play: tegra_pcm_deallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK); err: return ret; }
int tegra_pcm_dma_allocate(struct snd_soc_pcm_runtime *rtd, size_t size) { struct snd_card *card = rtd->card->snd_card; struct snd_soc_dai *dai = rtd->cpu_dai; struct snd_pcm *pcm = rtd->pcm; int ret = 0; if (!card->dev->dma_mask) card->dev->dma_mask = &tegra_dma_mask; if (!card->dev->coherent_dma_mask) card->dev->coherent_dma_mask = 0xffffffff; if (dai->driver->playback.channels_min) { ret = tegra_pcm_preallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK, size); if (ret) goto err; } if (dai->driver->capture.channels_min) { ret = tegra_pcm_preallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_CAPTURE, size); if (ret) goto err_free_play; } return 0; err_free_play: tegra_pcm_deallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK); err: return ret; }
static int tegra_pcm_new(struct snd_soc_pcm_runtime *rtd) { struct snd_card *card = rtd->card->snd_card; struct snd_pcm *pcm = rtd->pcm; int ret = 0; if (!card->dev->dma_mask) card->dev->dma_mask = &tegra_dma_mask; if (!card->dev->coherent_dma_mask) card->dev->coherent_dma_mask = DMA_BIT_MASK(32); if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) { ret = tegra_pcm_preallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK); if (ret) goto err; } if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) { ret = tegra_pcm_preallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_CAPTURE); if (ret) goto err_free_play; } return 0; err_free_play: tegra_pcm_deallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK); err: return ret; }
static void tegra_pcm_free_dma_buffers(struct snd_pcm *pcm) { struct snd_pcm_substream *substream; struct snd_dma_buffer *buf; int stream; for (stream = 0; stream < 2; stream++) { substream = pcm->streams[stream].substream; buf = &substream->dma_buffer; if (!buf) { continue; } tegra_pcm_deallocate_dma_buffer(pcm ,stream); } }
int tegra_pcm_dma_allocate(struct snd_soc_pcm_runtime *rtd, size_t size) { struct snd_card *card = rtd->card->snd_card; struct snd_soc_dai *dai = rtd->cpu_dai; /*Olympus: Added codec_dai for checking what is present and what is not, detecting by cpu_dai was not correct*/ struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_pcm *pcm = rtd->pcm; int ret = 0; if (!card->dev->dma_mask) card->dev->dma_mask = &tegra_dma_mask; if (!card->dev->coherent_dma_mask) card->dev->coherent_dma_mask = 0xffffffff; if (codec_dai->driver->playback.channels_min) { //dai -> codec_dai ret = tegra_pcm_preallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK, size); if (ret) goto err; } if (codec_dai->driver->capture.channels_min) { //dai -> codec_dai ret = tegra_pcm_preallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_CAPTURE, size); if (ret) goto err_free_play; } return 0; err_free_play: tegra_pcm_deallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK); err: return ret; }
static void tegra_pcm_free(struct snd_pcm *pcm) { tegra_pcm_deallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_CAPTURE); tegra_pcm_deallocate_dma_buffer(pcm, SNDRV_PCM_STREAM_PLAYBACK); }