[deliverable/linux.git] / sound / soc / au1x / db1200.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 <sound/soc-dapm.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",
	.cpu_dai_name	= "au1xpsc-ac97",
	.codec_dai_name	= "ac97-hifi",
	.platform_name	=  "au1xpsc-pcm-audio",
	.codec_name	= "ac97-codec",
};

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",
	.cpu_dai_name	= "au1xpsc",
	.codec_dai_name	= "wm8731-hifi"
	.platform_name	= "au1xpsc-pcm-audio",
	.codec_name	= "wm8731-codec.0-001a",
	.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);
	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");
Commit	Line	Data
05ae3231 ML	1	/*
	2	* DB1200 ASoC audio fabric support code.
	3	*
	4	* (c) 2008-9 Manuel Lauss <manuel.lauss@gmail.com>
	5	*
	6	*/
	7
	8	#include <linux/module.h>
	9	#include <linux/moduleparam.h>
	10	#include <linux/timer.h>
	11	#include <linux/interrupt.h>
	12	#include <linux/platform_device.h>
	13	#include <sound/core.h>
	14	#include <sound/pcm.h>
	15	#include <sound/soc.h>
	16	#include <sound/soc-dapm.h>
	17	#include <asm/mach-au1x00/au1000.h>
	18	#include <asm/mach-au1x00/au1xxx_psc.h>
	19	#include <asm/mach-au1x00/au1xxx_dbdma.h>
	20	#include <asm/mach-db1x00/bcsr.h>
	21
05ae3231 ML	22	#include "../codecs/wm8731.h"
	23	#include "psc.h"
	24
	25	/------------------------- AC97 PART ---------------------------/
	26
	27	static struct snd_soc_dai_link db1200_ac97_dai = {
	28	.name = "AC97",
	29	.stream_name = "AC97 HiFi",
f0fba2ad LG	30	.cpu_dai_name = "au1xpsc-ac97",
	31	.codec_dai_name = "ac97-hifi",
	32	.platform_name = "au1xpsc-pcm-audio",
	33	.codec_name = "ac97-codec",
05ae3231 ML	34	};
	35
	36	static struct snd_soc_card db1200_ac97_machine = {
	37	.name = "DB1200_AC97",
	38	.dai_link = &db1200_ac97_dai,
	39	.num_links = 1,
05ae3231 ML	40	};
	41
	42	/------------------------- I2S PART ---------------------------/
	43
	44	static int db1200_i2s_startup(struct snd_pcm_substream *substream)
	45	{
	46	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	47	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	48	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
05ae3231 ML	49	int ret;
	50
	51	/* WM8731 has its own 12MHz crystal */
9745e824	52	snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
05ae3231 ML	53	12000000, SND_SOC_CLOCK_IN);
	54
	55	/* codec is bitclock and lrclk master */
	56	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J \|
	57	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBM_CFM);
	58	if (ret < 0)
	59	goto out;
	60
	61	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_LEFT_J \|
	62	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBM_CFM);
	63	if (ret < 0)
	64	goto out;
	65
	66	ret = 0;
	67	out:
	68	return ret;
	69	}
	70
	71	static struct snd_soc_ops db1200_i2s_wm8731_ops = {
	72	.startup = db1200_i2s_startup,
	73	};
	74
	75	static struct snd_soc_dai_link db1200_i2s_dai = {
	76	.name = "WM8731",
	77	.stream_name = "WM8731 PCM",
f0fba2ad LG	78	.cpu_dai_name = "au1xpsc",
	79	.codec_dai_name = "wm8731-hifi"
	80	.platform_name = "au1xpsc-pcm-audio",
	81	.codec_name = "wm8731-codec.0-001a",
05ae3231 ML	82	.ops = &db1200_i2s_wm8731_ops,
	83	};
	84
	85	static struct snd_soc_card db1200_i2s_machine = {
	86	.name = "DB1200_I2S",
	87	.dai_link = &db1200_i2s_dai,
	88	.num_links = 1,
05ae3231 ML	89	};
	90
	91	/------------------------- COMMON PART ---------------------------/
	92
	93	static struct platform_device *db1200_asoc_dev;
	94
	95	static int __init db1200_audio_load(void)
	96	{
	97	int ret;
	98
	99	ret = -ENOMEM;
	100	db1200_asoc_dev = platform_device_alloc("soc-audio", -1);
	101	if (!db1200_asoc_dev)
	102	goto out;
	103
	104	/* DB1200 board setup set PSC1MUX to preferred audio device */
	105	if (bcsr_read(BCSR_RESETS) & BCSR_RESETS_PSC1MUX)
f0fba2ad	106	platform_set_drvdata(db1200_asoc_dev, &db1200_i2s_machine);
05ae3231	107	else
f0fba2ad	108	platform_set_drvdata(db1200_asoc_dev, &db1200_ac97_machine);
05ae3231	109
05ae3231 ML	110	ret = platform_device_add(db1200_asoc_dev);
	111
	112	if (ret) {
	113	platform_device_put(db1200_asoc_dev);
	114	db1200_asoc_dev = NULL;
	115	}
	116	out:
	117	return ret;
	118	}
	119
	120	static void __exit db1200_audio_unload(void)
	121	{
	122	platform_device_unregister(db1200_asoc_dev);
	123	}
	124
	125	module_init(db1200_audio_load);
	126	module_exit(db1200_audio_unload);
	127
	128	MODULE_LICENSE("GPL");
	129	MODULE_DESCRIPTION("DB1200 ASoC audio support");
	130	MODULE_AUTHOR("Manuel Lauss");