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From 1179eb1bf9d827aaa2b4b6adc4ba135bf9074bcc Mon Sep 17 00:00:00 2001
From: mokopatches <mokopatches@openmoko.org>
Date: Sun, 13 Apr 2008 07:23:53 +0100
Subject: [PATCH] s3c24xx-pcm-suspend.patch
---
sound/soc/s3c24xx/s3c24xx-pcm.c | 48 ++++++++++++++++++++------------------
1 files changed, 25 insertions(+), 23 deletions(-)
diff --git a/sound/soc/s3c24xx/s3c24xx-pcm.c b/sound/soc/s3c24xx/s3c24xx-pcm.c
index 4107a87..e9f3b60 100644
--- a/sound/soc/s3c24xx/s3c24xx-pcm.c
+++ b/sound/soc/s3c24xx/s3c24xx-pcm.c
@@ -49,7 +49,9 @@ static const struct snd_pcm_hardware s3c24xx_pcm_hardware = {
.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID,
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_U16_LE |
SNDRV_PCM_FMTBIT_U8 |
@@ -176,28 +178,6 @@ static int s3c24xx_pcm_hw_params(struct snd_pcm_substream *substream,
}
}
- /* channel needs configuring for mem=>device, increment memory addr,
- * sync to pclk, half-word transfers to the IIS-FIFO. */
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- s3c2410_dma_devconfig(prtd->params->channel,
- S3C2410_DMASRC_MEM, S3C2410_DISRCC_INC |
- S3C2410_DISRCC_APB, prtd->params->dma_addr);
-
- s3c2410_dma_config(prtd->params->channel,
- prtd->params->dma_size,
- S3C2410_DCON_SYNC_PCLK |
- S3C2410_DCON_HANDSHAKE);
- } else {
- s3c2410_dma_config(prtd->params->channel,
- prtd->params->dma_size,
- S3C2410_DCON_HANDSHAKE |
- S3C2410_DCON_SYNC_PCLK);
-
- s3c2410_dma_devconfig(prtd->params->channel,
- S3C2410_DMASRC_HW, 0x3,
- prtd->params->dma_addr);
- }
-
s3c2410_dma_set_buffdone_fn(prtd->params->channel,
s3c24xx_audio_buffdone);
@@ -246,6 +226,28 @@ static int s3c24xx_pcm_prepare(struct snd_pcm_substream *substream)
if (!prtd->params)
return 0;
+ /* channel needs configuring for mem=>device, increment memory addr,
+ * sync to pclk, half-word transfers to the IIS-FIFO. */
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ s3c2410_dma_devconfig(prtd->params->channel,
+ S3C2410_DMASRC_MEM, S3C2410_DISRCC_INC |
+ S3C2410_DISRCC_APB, prtd->params->dma_addr);
+
+ s3c2410_dma_config(prtd->params->channel,
+ prtd->params->dma_size,
+ S3C2410_DCON_SYNC_PCLK |
+ S3C2410_DCON_HANDSHAKE);
+ } else {
+ s3c2410_dma_config(prtd->params->channel,
+ prtd->params->dma_size,
+ S3C2410_DCON_HANDSHAKE |
+ S3C2410_DCON_SYNC_PCLK);
+
+ s3c2410_dma_devconfig(prtd->params->channel,
+ S3C2410_DMASRC_HW, 0x3,
+ prtd->params->dma_addr);
+ }
+
/* flush the DMA channel */
s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_FLUSH);
prtd->dma_loaded = 0;
--
1.5.6.5
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