return 0;
}
-static int cygnus_pcm_hw_params(struct snd_soc_component *component,
- struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct cygnus_aio_port *aio;
-
- aio = cygnus_dai_get_dma_data(substream);
- dev_dbg(asoc_rtd_to_cpu(rtd, 0)->dev, "%s port %d\n", __func__, aio->portnum);
-
- snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
- runtime->dma_bytes = params_buffer_bytes(params);
-
- return 0;
-}
-
-static int cygnus_pcm_hw_free(struct snd_soc_component *component,
- struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- struct cygnus_aio_port *aio;
-
- aio = cygnus_dai_get_dma_data(substream);
- dev_dbg(asoc_rtd_to_cpu(rtd, 0)->dev, "%s port %d\n", __func__, aio->portnum);
-
- snd_pcm_set_runtime_buffer(substream, NULL);
- return 0;
-}
-
static int cygnus_pcm_prepare(struct snd_soc_component *component,
struct snd_pcm_substream *substream)
{
return bytes_to_frames(substream->runtime, res);
}
-static int cygnus_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
-{
- struct snd_pcm_substream *substream = pcm->streams[stream].substream;
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- struct snd_dma_buffer *buf = &substream->dma_buffer;
- size_t size;
-
- size = cygnus_pcm_hw.buffer_bytes_max;
-
- buf->dev.type = SNDRV_DMA_TYPE_DEV;
- buf->dev.dev = pcm->card->dev;
- buf->private_data = NULL;
- buf->area = dma_alloc_coherent(pcm->card->dev, size,
- &buf->addr, GFP_KERNEL);
-
- dev_dbg(asoc_rtd_to_cpu(rtd, 0)->dev, "%s: size 0x%zx @ %pK\n",
- __func__, size, buf->area);
-
- if (!buf->area) {
- dev_err(asoc_rtd_to_cpu(rtd, 0)->dev, "%s: dma_alloc failed\n", __func__);
- return -ENOMEM;
- }
- buf->bytes = size;
-
- return 0;
-}
-
-static void cygnus_dma_free_dma_buffers(struct snd_soc_component *component,
- struct snd_pcm *pcm)
-{
- struct snd_pcm_substream *substream;
- struct snd_dma_buffer *buf;
-
- substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
- if (substream) {
- buf = &substream->dma_buffer;
- if (buf->area) {
- dma_free_coherent(pcm->card->dev, buf->bytes,
- buf->area, buf->addr);
- buf->area = NULL;
- }
- }
-
- substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
- if (substream) {
- buf = &substream->dma_buffer;
- if (buf->area) {
- dma_free_coherent(pcm->card->dev, buf->bytes,
- buf->area, buf->addr);
- buf->area = NULL;
- }
- }
-}
-
static int cygnus_dma_new(struct snd_soc_component *component,
struct snd_soc_pcm_runtime *rtd)
{
+ size_t size = cygnus_pcm_hw.buffer_bytes_max;
struct snd_card *card = rtd->card->snd_card;
- struct snd_pcm *pcm = rtd->pcm;
- int ret;
if (!card->dev->dma_mask)
card->dev->dma_mask = &cygnus_dma_dmamask;
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
- if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
- ret = cygnus_pcm_preallocate_dma_buffer(pcm,
- SNDRV_PCM_STREAM_PLAYBACK);
- if (ret)
- return ret;
- }
-
- if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
- ret = cygnus_pcm_preallocate_dma_buffer(pcm,
- SNDRV_PCM_STREAM_CAPTURE);
- if (ret) {
- cygnus_dma_free_dma_buffers(component, pcm);
- return ret;
- }
- }
+ snd_pcm_set_managed_buffer_all(rtd->pcm, SNDRV_DMA_TYPE_DEV,
+ card->dev, size, size);
return 0;
}
static struct snd_soc_component_driver cygnus_soc_platform = {
.open = cygnus_pcm_open,
.close = cygnus_pcm_close,
- .hw_params = cygnus_pcm_hw_params,
- .hw_free = cygnus_pcm_hw_free,
.prepare = cygnus_pcm_prepare,
.trigger = cygnus_pcm_trigger,
.pointer = cygnus_pcm_pointer,
.pcm_construct = cygnus_dma_new,
- .pcm_destruct = cygnus_dma_free_dma_buffers,
};
int cygnus_soc_platform_register(struct device *dev,