diff options
| author |   Jaya Kumar <jayakumar.alsa@gmail.com> | 2006-04-28 14:34:49 +0200 |
|---|---|---|
| committer |   Jaroslav Kysela <perex@suse.cz> | 2006-06-22 21:32:49 +0200 |
| commit | 9ac25594e68a4b61516e7c1140d8c0f7ef449e20 (patch) | |
| tree | 628040fb065b882191a6ff5ed7aba42ef04b99d6 /sound/pci/cs5535audio/cs5535audio_pcm.c | |
| parent | [ALSA] hda-codec - Add support for Sony Vaio VGN-A790 laptop (diff) | |
| download | linux-dev-9ac25594e68a4b61516e7c1140d8c0f7ef449e20.tar.xz linux-dev-9ac25594e68a4b61516e7c1140d8c0f7ef449e20.zip | |
[ALSA] PM support for cs5535audio
Appended is my patch adding PM support to the cs5535audio driver.
I also added the ac97 quirk but it's not yet confirmed which
boards need to be in the quirk list. The patch also includes some
Kconfig and misc cleanup.
Signed-off-by: Jaya Kumar <jayakumar.alsa@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/cs5535audio/cs5535audio_pcm.c')
| -rw-r--r-- | sound/pci/cs5535audio/cs5535audio_pcm.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/sound/pci/cs5535audio/cs5535audio_pcm.c b/sound/pci/cs5535audio/cs5535audio_pcm.c index 60bb82b2ff47..f0a48693d687 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; } |