ALSA: pxa2xx: Use managed PCM buffer allocation

[linux-2.6-block.git] / sound / arm / pxa2xx-pcm-lib.c

diff --git a/sound/arm/pxa2xx-pcm-lib.c b/sound/arm/pxa2xx-pcm-lib.c
index e81083e1bc68b23a9a3678e5aed2eda0b2e47872..0a48805e513a5186e2c2b92262385d4fc1ba5271 100644 (file)
--- a/sound/arm/pxa2xx-pcm-lib.c
+++ b/sound/arm/pxa2xx-pcm-lib.c
@@ -54,19 +54,10 @@ int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
        if (ret)
                return ret;
 
-       snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
-
        return 0;
 }
 EXPORT_SYMBOL(pxa2xx_pcm_hw_params);
 
-int pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream)
-{
-       snd_pcm_set_runtime_buffer(substream, NULL);
-       return 0;
-}
-EXPORT_SYMBOL(pxa2xx_pcm_hw_free);
-
 int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 {
        return snd_dmaengine_pcm_trigger(substream, cmd);
@@ -131,56 +122,14 @@ int pxa2xx_pcm_close(struct snd_pcm_substream *substream)
 }
 EXPORT_SYMBOL(pxa2xx_pcm_close);
 
-int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream,
-       struct vm_area_struct *vma)
-{
-       struct snd_pcm_runtime *runtime = substream->runtime;
-       return dma_mmap_wc(substream->pcm->card->dev, vma, runtime->dma_area,
-                          runtime->dma_addr, runtime->dma_bytes);
-}
-EXPORT_SYMBOL(pxa2xx_pcm_mmap);
-
-int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
+int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm)
 {
-       struct snd_pcm_substream *substream = pcm->streams[stream].substream;
-       struct snd_dma_buffer *buf = &substream->dma_buffer;
        size_t size = pxa2xx_pcm_hardware.buffer_bytes_max;
-       buf->dev.type = SNDRV_DMA_TYPE_DEV;
-       buf->dev.dev = pcm->card->dev;
-       buf->private_data = NULL;
-       buf->area = dma_alloc_wc(pcm->card->dev, size, &buf->addr, GFP_KERNEL);
-       if (!buf->area)
-               return -ENOMEM;
-       buf->bytes = size;
-       return 0;
-}
-EXPORT_SYMBOL(pxa2xx_pcm_preallocate_dma_buffer);
 
-void pxa2xx_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;
-               if (!substream)
-                       continue;
-               buf = &substream->dma_buffer;
-               if (!buf->area)
-                       continue;
-               dma_free_wc(pcm->card->dev, buf->bytes, buf->area, buf->addr);
-               buf->area = NULL;
-       }
-}
-EXPORT_SYMBOL(pxa2xx_pcm_free_dma_buffers);
-
-void pxa2xx_soc_pcm_free(struct snd_soc_component *component,
-                        struct snd_pcm *pcm)
-{
-       pxa2xx_pcm_free_dma_buffers(pcm);
+       return snd_pcm_set_fixed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_WC,
+                                           pcm->card->dev, size);
 }
-EXPORT_SYMBOL(pxa2xx_soc_pcm_free);
+EXPORT_SYMBOL(pxa2xx_pcm_preallocate_dma_buffer);
 
 int pxa2xx_soc_pcm_new(struct snd_soc_component *component,
                       struct snd_soc_pcm_runtime *rtd)
@@ -193,21 +142,7 @@ int pxa2xx_soc_pcm_new(struct snd_soc_component *component,
        if (ret)
                return ret;
 
-       if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
-               ret = pxa2xx_pcm_preallocate_dma_buffer(pcm,
-                       SNDRV_PCM_STREAM_PLAYBACK);
-               if (ret)
-                       goto out;
-       }
-
-       if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
-               ret = pxa2xx_pcm_preallocate_dma_buffer(pcm,
-                       SNDRV_PCM_STREAM_CAPTURE);
-               if (ret)
-                       goto out;
-       }
- out:
-       return ret;
+       return pxa2xx_pcm_preallocate_dma_buffer(pcm);
 }
 EXPORT_SYMBOL(pxa2xx_soc_pcm_new);
 
@@ -233,13 +168,6 @@ int pxa2xx_soc_pcm_hw_params(struct snd_soc_component *component,
 }
 EXPORT_SYMBOL(pxa2xx_soc_pcm_hw_params);
 
-int pxa2xx_soc_pcm_hw_free(struct snd_soc_component *component,
-                          struct snd_pcm_substream *substream)
-{
-       return pxa2xx_pcm_hw_free(substream);
-}
-EXPORT_SYMBOL(pxa2xx_soc_pcm_hw_free);
-
 int pxa2xx_soc_pcm_prepare(struct snd_soc_component *component,
                           struct snd_pcm_substream *substream)
 {
@@ -262,14 +190,6 @@ pxa2xx_soc_pcm_pointer(struct snd_soc_component *component,
 }
 EXPORT_SYMBOL(pxa2xx_soc_pcm_pointer);
 
-int pxa2xx_soc_pcm_mmap(struct snd_soc_component *component,
-                       struct snd_pcm_substream *substream,
-                       struct vm_area_struct *vma)
-{
-       return pxa2xx_pcm_mmap(substream, vma);
-}
-EXPORT_SYMBOL(pxa2xx_soc_pcm_mmap);
-
 MODULE_AUTHOR("Nicolas Pitre");
 MODULE_DESCRIPTION("Intel PXA2xx sound library");
 MODULE_LICENSE("GPL");