diff options
| author | Jassi Brar <jassi.brar@samsung.com> | 2010-03-10 16:48:58 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-03-10 18:48:18 +0000 |
| commit | 9c9b125736db934b98aa7e16b675767ed4fcf5ce (patch) | |
| tree | 8015b01db36b7357405fb91339102c5977a65f27 /sound/soc/s3c24xx/s3c2412-i2s.c | |
| parent | bf3288260288160e22f85bbf00b281523c14b587 (diff) | |
ASoC: S3C: I2Sv2: Segregate hw_params callback
Towards having build for multiple SoCs segregate hw_params callback
for s3c2412 and s3c64xx.
Since, all new SoCs have s3c64xx like register map, we keep that as
default implementation if no SoC specific callback is already defined.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/s3c24xx/s3c2412-i2s.c')
| -rw-r--r-- | sound/soc/s3c24xx/s3c2412-i2s.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/sound/soc/s3c24xx/s3c2412-i2s.c b/sound/soc/s3c24xx/s3c2412-i2s.c index 359e59346ba..a5b21f63261 100644 --- a/sound/soc/s3c24xx/s3c2412-i2s.c +++ b/sound/soc/s3c24xx/s3c2412-i2s.c @@ -103,6 +103,10 @@ struct clk *s3c2412_get_iisclk(void) } EXPORT_SYMBOL_GPL(s3c2412_get_iisclk); +static inline struct s3c_i2sv2_info *to_info(struct snd_soc_dai *cpu_dai) +{ + return cpu_dai->private_data; +} static int s3c2412_i2s_probe(struct platform_device *pdev, struct snd_soc_dai *dai) @@ -142,6 +146,38 @@ static int s3c2412_i2s_probe(struct platform_device *pdev, return 0; } +static int s3c2412_i2s_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *cpu_dai) +{ + struct s3c_i2sv2_info *i2s = to_info(cpu_dai); + u32 iismod; + + pr_debug("Entered %s\n", __func__); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + cpu_dai->dma_data = i2s->dma_playback; + else + cpu_dai->dma_data = i2s->dma_capture; + + iismod = readl(i2s->regs + S3C2412_IISMOD); + pr_debug("%s: r: IISMOD: %x\n", __func__, iismod); + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S8: + iismod |= S3C2412_IISMOD_8BIT; + break; + case SNDRV_PCM_FORMAT_S16_LE: + iismod &= ~S3C2412_IISMOD_8BIT; + break; + } + + writel(iismod, i2s->regs + S3C2412_IISMOD); + pr_debug("%s: w: IISMOD: %x\n", __func__, iismod); + + return 0; +} + #define S3C2412_I2S_RATES \ (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \ SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ @@ -149,6 +185,7 @@ static int s3c2412_i2s_probe(struct platform_device *pdev, static struct snd_soc_dai_ops s3c2412_i2s_dai_ops = { .set_sysclk = s3c2412_i2s_set_sysclk, + .hw_params = s3c2412_i2s_hw_params, }; struct snd_soc_dai s3c2412_i2s_dai = { |