![Jarkko Nikula](/assets/img/avatar_default.png)
There is no need to include soc-dapm.h since soc.h includes it. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
130 lines
3.1 KiB
C
130 lines
3.1 KiB
C
/*
|
|
* DB1200 ASoC audio fabric support code.
|
|
*
|
|
* (c) 2008-9 Manuel Lauss <manuel.lauss@gmail.com>
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/platform_device.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/soc.h>
|
|
#include <asm/mach-au1x00/au1000.h>
|
|
#include <asm/mach-au1x00/au1xxx_psc.h>
|
|
#include <asm/mach-au1x00/au1xxx_dbdma.h>
|
|
#include <asm/mach-db1x00/bcsr.h>
|
|
|
|
#include "../codecs/wm8731.h"
|
|
#include "psc.h"
|
|
|
|
/*------------------------- AC97 PART ---------------------------*/
|
|
|
|
static struct snd_soc_dai_link db1200_ac97_dai = {
|
|
.name = "AC97",
|
|
.stream_name = "AC97 HiFi",
|
|
.codec_dai_name = "ac97-hifi",
|
|
.cpu_dai_name = "au1xpsc_ac97.1",
|
|
.platform_name = "au1xpsc-pcm.1",
|
|
.codec_name = "ac97-codec.1",
|
|
};
|
|
|
|
static struct snd_soc_card db1200_ac97_machine = {
|
|
.name = "DB1200_AC97",
|
|
.dai_link = &db1200_ac97_dai,
|
|
.num_links = 1,
|
|
};
|
|
|
|
/*------------------------- I2S PART ---------------------------*/
|
|
|
|
static int db1200_i2s_startup(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
struct snd_soc_dai *codec_dai = rtd->codec_dai;
|
|
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
|
|
int ret;
|
|
|
|
/* WM8731 has its own 12MHz crystal */
|
|
snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
|
|
12000000, SND_SOC_CLOCK_IN);
|
|
|
|
/* codec is bitclock and lrclk master */
|
|
ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J |
|
|
SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_LEFT_J |
|
|
SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = 0;
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static struct snd_soc_ops db1200_i2s_wm8731_ops = {
|
|
.startup = db1200_i2s_startup,
|
|
};
|
|
|
|
static struct snd_soc_dai_link db1200_i2s_dai = {
|
|
.name = "WM8731",
|
|
.stream_name = "WM8731 PCM",
|
|
.codec_dai_name = "wm8731-hifi",
|
|
.cpu_dai_name = "au1xpsc_i2s.1",
|
|
.platform_name = "au1xpsc-pcm.1",
|
|
.codec_name = "wm8731-codec.0-001b",
|
|
.ops = &db1200_i2s_wm8731_ops,
|
|
};
|
|
|
|
static struct snd_soc_card db1200_i2s_machine = {
|
|
.name = "DB1200_I2S",
|
|
.dai_link = &db1200_i2s_dai,
|
|
.num_links = 1,
|
|
};
|
|
|
|
/*------------------------- COMMON PART ---------------------------*/
|
|
|
|
static struct platform_device *db1200_asoc_dev;
|
|
|
|
static int __init db1200_audio_load(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = -ENOMEM;
|
|
db1200_asoc_dev = platform_device_alloc("soc-audio", 1); /* PSC1 */
|
|
if (!db1200_asoc_dev)
|
|
goto out;
|
|
|
|
/* DB1200 board setup set PSC1MUX to preferred audio device */
|
|
if (bcsr_read(BCSR_RESETS) & BCSR_RESETS_PSC1MUX)
|
|
platform_set_drvdata(db1200_asoc_dev, &db1200_i2s_machine);
|
|
else
|
|
platform_set_drvdata(db1200_asoc_dev, &db1200_ac97_machine);
|
|
|
|
ret = platform_device_add(db1200_asoc_dev);
|
|
|
|
if (ret) {
|
|
platform_device_put(db1200_asoc_dev);
|
|
db1200_asoc_dev = NULL;
|
|
}
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static void __exit db1200_audio_unload(void)
|
|
{
|
|
platform_device_unregister(db1200_asoc_dev);
|
|
}
|
|
|
|
module_init(db1200_audio_load);
|
|
module_exit(db1200_audio_unload);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("DB1200 ASoC audio support");
|
|
MODULE_AUTHOR("Manuel Lauss");
|