diff options
Diffstat (limited to 'sound/soc/pxa/mmp-pcm.c')
| -rw-r--r-- | sound/soc/pxa/mmp-pcm.c | 68 |
1 files changed, 14 insertions, 54 deletions
diff --git a/sound/soc/pxa/mmp-pcm.c b/sound/soc/pxa/mmp-pcm.c index 190eb0bccf5..5e8d8133017 100644 --- a/sound/soc/pxa/mmp-pcm.c +++ b/sound/soc/pxa/mmp-pcm.c @@ -17,6 +17,7 @@ #include <linux/dmaengine.h> #include <linux/platform_data/dma-mmp_tdma.h> #include <linux/platform_data/mmp_audio.h> + #include <sound/pxa2xx-lib.h> #include <sound/core.h> #include <sound/pcm.h> @@ -35,14 +36,9 @@ struct mmp_dma_data { SNDRV_PCM_INFO_PAUSE | \ SNDRV_PCM_INFO_RESUME) -#define MMP_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ - SNDRV_PCM_FMTBIT_S24_LE | \ - SNDRV_PCM_FMTBIT_S32_LE) - static struct snd_pcm_hardware mmp_pcm_hardware[] = { { .info = MMP_PCM_INFO, - .formats = MMP_PCM_FORMATS, .period_bytes_min = 1024, .period_bytes_max = 2048, .periods_min = 2, @@ -52,7 +48,6 @@ static struct snd_pcm_hardware mmp_pcm_hardware[] = { }, { .info = MMP_PCM_INFO, - .formats = MMP_PCM_FORMATS, .period_bytes_min = 1024, .period_bytes_max = 2048, .periods_min = 2, @@ -66,27 +61,15 @@ static int mmp_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream); - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct pxa2xx_pcm_dma_params *dma_params; struct dma_slave_config slave_config; int ret; - dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); - if (!dma_params) - return 0; - - ret = snd_hwparams_to_dma_slave_config(substream, params, &slave_config); + ret = + snd_dmaengine_pcm_prepare_slave_config(substream, params, + &slave_config); if (ret) return ret; - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - slave_config.dst_addr = dma_params->dev_addr; - slave_config.dst_maxburst = 4; - } else { - slave_config.src_addr = dma_params->dev_addr; - slave_config.src_maxburst = 4; - } - ret = dmaengine_slave_config(chan, &slave_config); if (ret) return ret; @@ -118,9 +101,8 @@ static int mmp_pcm_open(struct snd_pcm_substream *substream) struct snd_soc_pcm_runtime *rtd = substream->private_data; struct platform_device *pdev = to_platform_device(rtd->platform->dev); struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct mmp_dma_data *dma_data; + struct mmp_dma_data dma_data; struct resource *r; - int ret; r = platform_get_resource(pdev, IORESOURCE_DMA, substream->stream); if (!r) @@ -128,33 +110,12 @@ static int mmp_pcm_open(struct snd_pcm_substream *substream) snd_soc_set_runtime_hwparams(substream, &mmp_pcm_hardware[substream->stream]); - dma_data = devm_kzalloc(&pdev->dev, - sizeof(struct mmp_dma_data), GFP_KERNEL); - if (dma_data == NULL) - return -ENOMEM; - dma_data->dma_res = r; - dma_data->ssp_id = cpu_dai->id; + dma_data.dma_res = r; + dma_data.ssp_id = cpu_dai->id; - ret = snd_dmaengine_pcm_open(substream, filter, dma_data); - if (ret) { - devm_kfree(&pdev->dev, dma_data); - return ret; - } - - snd_dmaengine_pcm_set_data(substream, dma_data); - return 0; -} - -static int mmp_pcm_close(struct snd_pcm_substream *substream) -{ - struct mmp_dma_data *dma_data = snd_dmaengine_pcm_get_data(substream); - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct platform_device *pdev = to_platform_device(rtd->platform->dev); - - snd_dmaengine_pcm_close(substream); - devm_kfree(&pdev->dev, dma_data); - return 0; + return snd_dmaengine_pcm_open_request_chan(substream, filter, + &dma_data); } static int mmp_pcm_mmap(struct snd_pcm_substream *substream, @@ -169,9 +130,9 @@ static int mmp_pcm_mmap(struct snd_pcm_substream *substream, vma->vm_end - vma->vm_start, vma->vm_page_prot); } -struct snd_pcm_ops mmp_pcm_ops = { +static struct snd_pcm_ops mmp_pcm_ops = { .open = mmp_pcm_open, - .close = mmp_pcm_close, + .close = snd_dmaengine_pcm_close_release_chan, .ioctl = snd_pcm_lib_ioctl, .hw_params = mmp_pcm_hw_params, .trigger = snd_dmaengine_pcm_trigger, @@ -222,15 +183,14 @@ static int mmp_pcm_preallocate_dma_buffer(struct snd_pcm_substream *substream, if (!gpool) return -ENOMEM; - buf->area = (unsigned char *)gen_pool_alloc(gpool, size); + buf->area = gen_pool_dma_alloc(gpool, size, &buf->addr); if (!buf->area) return -ENOMEM; - buf->addr = gen_pool_virt_to_phys(gpool, (unsigned long)buf->area); buf->bytes = size; return 0; } -int mmp_pcm_new(struct snd_soc_pcm_runtime *rtd) +static int mmp_pcm_new(struct snd_soc_pcm_runtime *rtd) { struct snd_pcm_substream *substream; struct snd_pcm *pcm = rtd->pcm; @@ -251,7 +211,7 @@ err: return ret; } -struct snd_soc_platform_driver mmp_soc_platform = { +static struct snd_soc_platform_driver mmp_soc_platform = { .ops = &mmp_pcm_ops, .pcm_new = mmp_pcm_new, .pcm_free = mmp_pcm_free_dma_buffers, |