diff options
Diffstat (limited to 'sound/soc/pxa')
| -rw-r--r-- | sound/soc/pxa/spitz.c | 86 |
1 files changed, 53 insertions, 33 deletions
diff --git a/sound/soc/pxa/spitz.c b/sound/soc/pxa/spitz.c index 17c8e61efe6..80e82109fef 100644 --- a/sound/soc/pxa/spitz.c +++ b/sound/soc/pxa/spitz.c @@ -37,6 +37,7 @@ #include <asm/mach-types.h> #include "../codecs/wm8750.h" #include "pxa2xx-pcm.h" +#include "pxa2xx-i2s.h" #define SPITZ_HP 0 #define SPITZ_MIC 1 @@ -121,8 +122,59 @@ static int spitz_startup(struct snd_pcm_substream *substream) return 0; } +static int spitz_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai; + struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai; + unsigned int clk = 0; + int ret = 0; + + switch (params_rate(params)) { + case 8000: + case 16000: + case 48000: + case 96000: + clk = 12288000; + break; + case 11025: + case 22050: + case 44100: + clk = 11289600; + break; + } + + /* set codec DAI configuration */ + ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); + if (ret < 0) + return ret; + + /* set cpu DAI configuration */ + ret = cpu_dai->dai_ops.set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); + if (ret < 0) + return ret; + + /* set the codec system clock for DAC and ADC */ + ret = codec_dai->dai_ops.set_sysclk(codec_dai, WM8750_SYSCLK, clk, + SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + + /* set the I2S system clock as input (unused) */ + ret = cpu_dai->dai_ops.set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, + SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + + return 0; +} + static struct snd_soc_ops spitz_ops = { .startup = spitz_startup, + .hw_params = spitz_hw_params, }; static int spitz_get_jack(struct snd_kcontrol *kcontrol, @@ -276,37 +328,6 @@ static int spitz_wm8750_init(struct snd_soc_codec *codec) return 0; } -static unsigned int spitz_config_sysclk(struct snd_soc_pcm_runtime *rtd, - struct snd_soc_clock_info *info) -{ - if (info->bclk_master & SND_SOC_DAIFMT_CBS_CFS) { - /* pxa2xx is i2s master */ - switch (info->rate) { - case 11025: - case 22050: - case 44100: - case 88200: - /* configure codec digital filters - * for 11.025, 22.05, 44.1, 88.2 */ - rtd->codec_dai->config_sysclk(rtd->codec_dai, info, - 11289600); - break; - default: - /* configure codec digital filters for all other rates */ - rtd->codec_dai->config_sysclk(rtd->codec_dai, info, - SPITZ_AUDIO_CLOCK); - break; - } - /* configure pxa2xx i2s interface clocks as master */ - return rtd->cpu_dai->config_sysclk(rtd->cpu_dai, info, - SPITZ_AUDIO_CLOCK); - } else { - /* codec is i2s master - only configure codec DAI clock */ - return rtd->codec_dai->config_sysclk(rtd->codec_dai, info, - SPITZ_AUDIO_CLOCK); - } -} - /* spitz digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link spitz_dai = { .name = "wm8750", @@ -314,7 +335,7 @@ static struct snd_soc_dai_link spitz_dai = { .cpu_dai = &pxa_i2s_dai, .codec_dai = &wm8750_dai, .init = spitz_wm8750_init, - .config_sysclk = spitz_config_sysclk, + .ops = &spitz_ops, }; /* spitz audio machine driver */ @@ -322,7 +343,6 @@ static struct snd_soc_machine snd_soc_machine_spitz = { .name = "Spitz", .dai_link = &spitz_dai, .num_links = 1, - .ops = &spitz_ops, }; /* spitz audio private data */ |