leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[ALSA] soc - ASoC 0.13 Sharp poodle machine

Browse Source 
This patch updates the Sharp poodle machine driver to the new API in
ASoC 0.13.
Changes:-
o  Manually configure DAI hardware format.
o Removed config_sysclk() function. No longer needed as clocking is now
configured manually.

Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Liam Girdwood 2007-02-02 17:23:42 +01:00 committed by Jaroslav Kysela
parent cb4c048b93
commit 73f40dc1e1
1 changed files with 53 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

83
sound/soc/pxa/poodle.c
View File

@ -34,6 +34,7 @@
#include "../codecs/wm8731.h"
#include "pxa2xx-pcm.h"
#include "pxa2xx-i2s.h"
#define POODLE_HP 1
#define POODLE_HP_OFF 0
@ -100,8 +101,59 @@ static int poodle_shutdown(struct snd_pcm_substream *substream)
return 0;
}
static int poodle_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, WM8731_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 poodle_ops = {
.startup = poodle_startup,
.hw_params = poodle_hw_params,
.shutdown = poodle_shutdown,
};
@ -225,34 +277,6 @@ static int poodle_wm8731_init(struct snd_soc_codec *codec)
return 0;
}
static unsigned int poodle_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 44100:
case 88200:
/* configure codec digital filters for 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,
POODLE_AUDIO_CLOCK);
break;
}
return rtd->cpu_dai->config_sysclk(rtd->cpu_dai, info,
POODLE_AUDIO_CLOCK);
} else {
/* codec is i2s master -
* only configure codec DAI clock and filters */
return rtd->codec_dai->config_sysclk(rtd->codec_dai, info,
POODLE_AUDIO_CLOCK);
}
}
/* poodle digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link poodle_dai = {
.name = "WM8731",
@ -260,7 +284,7 @@ static struct snd_soc_dai_link poodle_dai = {
.cpu_dai = &pxa_i2s_dai,
.codec_dai = &wm8731_dai,
.init = poodle_wm8731_init,
.config_sysclk = poodle_config_sysclk,
.ops = &poodle_ops,
};
/* poodle audio machine driver */
@ -268,7 +292,6 @@ static struct snd_soc_machine snd_soc_machine_poodle = {
.name = "Poodle",
.dai_link = &poodle_dai,
.num_links = 1,
.ops = &poodle_ops,
};
/* poodle audio private data */