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path: root/sound/pci/cs5535audio/cs5535audio_pcm.c
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Diffstat (limited to 'sound/pci/cs5535audio/cs5535audio_pcm.c')
-rw-r--r--sound/pci/cs5535audio/cs5535audio_pcm.c24
1 files changed, 23 insertions, 1 deletions
diff --git a/sound/pci/cs5535audio/cs5535audio_pcm.c b/sound/pci/cs5535audio/cs5535audio_pcm.c
index 60bb82b..f0a4869 100644
--- a/sound/pci/cs5535audio/cs5535audio_pcm.c
+++ b/sound/pci/cs5535audio/cs5535audio_pcm.c
@@ -43,7 +43,8 @@ static struct snd_pcm_hardware snd_cs5535audio_playback =
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_SYNC_START
+ SNDRV_PCM_INFO_SYNC_START |
+ SNDRV_PCM_INFO_RESUME
),
.formats = (
SNDRV_PCM_FMTBIT_S16_LE
@@ -193,6 +194,11 @@ static void cs5535audio_playback_setup_prd(struct cs5535audio *cs5535au,
cs_writel(cs5535au, ACC_BM0_PRD, prd_addr);
}
+static u32 cs5535audio_playback_read_prd(struct cs5535audio *cs5535au)
+{
+ return cs_readl(cs5535au, ACC_BM0_PRD);
+}
+
static u32 cs5535audio_playback_read_dma_pntr(struct cs5535audio *cs5535au)
{
return cs_readl(cs5535au, ACC_BM0_PNTR);
@@ -219,6 +225,11 @@ static void cs5535audio_capture_setup_prd(struct cs5535audio *cs5535au,
cs_writel(cs5535au, ACC_BM1_PRD, prd_addr);
}
+static u32 cs5535audio_capture_read_prd(struct cs5535audio *cs5535au)
+{
+ return cs_readl(cs5535au, ACC_BM1_PRD);
+}
+
static u32 cs5535audio_capture_read_dma_pntr(struct cs5535audio *cs5535au)
{
return cs_readl(cs5535au, ACC_BM1_PNTR);
@@ -285,9 +296,17 @@ static int snd_cs5535audio_trigger(struct snd_pcm_substream *substream, int cmd)
case SNDRV_PCM_TRIGGER_START:
dma->ops->enable_dma(cs5535au);
break;
+ case SNDRV_PCM_TRIGGER_RESUME:
+ dma->ops->enable_dma(cs5535au);
+ dma->suspended = 0;
+ break;
case SNDRV_PCM_TRIGGER_STOP:
dma->ops->disable_dma(cs5535au);
break;
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ dma->ops->disable_dma(cs5535au);
+ dma->suspended = 1;
+ break;
default:
snd_printk(KERN_ERR "unhandled trigger\n");
err = -EINVAL;
@@ -375,6 +394,7 @@ static struct cs5535audio_dma_ops snd_cs5535audio_playback_dma_ops = {
.enable_dma = cs5535audio_playback_enable_dma,
.disable_dma = cs5535audio_playback_disable_dma,
.setup_prd = cs5535audio_playback_setup_prd,
+ .read_prd = cs5535audio_playback_read_prd,
.pause_dma = cs5535audio_playback_pause_dma,
.read_dma_pntr = cs5535audio_playback_read_dma_pntr,
};
@@ -384,6 +404,7 @@ static struct cs5535audio_dma_ops snd_cs5535audio_capture_dma_ops = {
.enable_dma = cs5535audio_capture_enable_dma,
.disable_dma = cs5535audio_capture_disable_dma,
.setup_prd = cs5535audio_capture_setup_prd,
+ .read_prd = cs5535audio_capture_read_prd,
.pause_dma = cs5535audio_capture_pause_dma,
.read_dma_pntr = cs5535audio_capture_read_dma_pntr,
};
@@ -413,6 +434,7 @@ int __devinit snd_cs5535audio_pcm(struct cs5535audio *cs5535au)
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(cs5535au->pci),
64*1024, 128*1024);
+ cs5535au->pcm = pcm;
return 0;
}
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