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ASoC: rockchip: spdif: caculate sclk according BMC(bitphase mark coding).

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Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
This commit is contained in:
Sugar Zhang
2015-06-12 18:22:02 +08:00
parent 797954d65b
commit ef5d7fa848
2 changed files with 13 additions and 26 deletions
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19
sound/soc/rockchip/rk_hdmi_spdif.c
View File

@@ -37,35 +37,28 @@ static int rk_hw_params(struct snd_pcm_substream *substream,
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
unsigned long pll_out, rclk_rate;
unsigned long sclk;
int ret, ratio;
RK_SPDIF_DBG("spdif:Entered %s\n", __func__);
/* bmc: 2*32*fs*2 = 128fs */
ratio = 128;
switch (params_rate(params)) {
case 44100:
pll_out = 11289600;
break;
case 32000:
pll_out = 8192000;
break;
case 48000:
pll_out = 12288000;
break;
case 96000:
pll_out = 24576000;
case 192000:
sclk = params_rate(params) * ratio;
break;
default:
pr_err("rk_spdif: params not support\n");
return -EINVAL;
}
ratio = 256;
rclk_rate = params_rate(params) * ratio;
/* Set audio source clock rates */
ret = snd_soc_dai_set_sysclk(cpu_dai, 0,
rclk_rate, SND_SOC_CLOCK_IN);
sclk, SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;

20
sound/soc/rockchip/rk_spdif_card.c
View File

@@ -28,33 +28,27 @@ static int rk_hw_params(struct snd_pcm_substream *substream,
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
unsigned long pll_out, rclk_rate;
unsigned long sclk;
int ret, ratio;
/* bmc: 2*32*fs*2 = 128fs */
ratio = 128;
switch (params_rate(params)) {
case 44100:
pll_out = 11289600;
break;
case 32000:
pll_out = 8192000;
break;
case 48000:
pll_out = 12288000;
break;
case 96000:
pll_out = 24576000;
case 192000:
sclk = params_rate(params) * ratio;
break;
default:
pr_err("rk_spdif: params not support\n");
return -EINVAL;
}
ratio = 256;
rclk_rate = params_rate(params) * ratio;
/* Set audio source clock rates */
ret = snd_soc_dai_set_sysclk(cpu_dai, 0,
rclk_rate, SND_SOC_CLOCK_IN);
sclk, SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;