[deliverable/linux.git] / sound / soc / au1x / db1200.c

/*
 * DB1200 ASoC audio fabric support code.
 *
 * (c) 2008-2011 Manuel Lauss <manuel.lauss@googlemail.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"

static struct platform_device_id db1200_pids[] = {
	{
		.name		= "db1200-ac97",
		.driver_data	= 0,
	}, {
		.name		= "db1200-i2s",
		.driver_data	= 1,
	},
	{},
};

/*-------------------------  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	= "wm8731.0-001b",
	.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 snd_soc_card *db1200_cards[] __devinitdata = {
	&db1200_ac97_machine,
	&db1200_i2s_machine,
};

static int __devinit db1200_audio_probe(struct platform_device *pdev)
{
	const struct platform_device_id *pid = platform_get_device_id(pdev);
	struct snd_soc_card *card;

	card = db1200_cards[pid->driver_data];
	card->dev = &pdev->dev;
	return snd_soc_register_card(card);
}

static int __devexit db1200_audio_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);
	snd_soc_unregister_card(card);
	return 0;
}

static struct platform_driver db1200_audio_driver = {
	.driver	= {
		.name	= "db1200-ac97",
		.owner	= THIS_MODULE,
		.pm	= &snd_soc_pm_ops,
	},
	.id_table	= db1200_pids,
	.probe		= db1200_audio_probe,
	.remove		= __devexit_p(db1200_audio_remove),
};

static int __init db1200_audio_load(void)
{
	return platform_driver_register(&db1200_audio_driver);
}

static void __exit db1200_audio_unload(void)
{
	platform_driver_unregister(&db1200_audio_driver);
}

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	*
adbc7a5a	4	* (c) 2008-2011 Manuel Lauss <manuel.lauss@googlemail.com>
05ae3231 ML	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>
05ae3231 ML	16	#include <asm/mach-au1x00/au1000.h>
	17	#include <asm/mach-au1x00/au1xxx_psc.h>
	18	#include <asm/mach-au1x00/au1xxx_dbdma.h>
	19	#include <asm/mach-db1x00/bcsr.h>
	20
05ae3231 ML	21	#include "../codecs/wm8731.h"
	22	#include "psc.h"
	23
adbc7a5a ML	24	static struct platform_device_id db1200_pids[] = {
	25	{
	26	.name = "db1200-ac97",
	27	.driver_data = 0,
	28	}, {
	29	.name = "db1200-i2s",
	30	.driver_data = 1,
	31	},
	32	{},
	33	};
	34
05ae3231 ML	35	/------------------------- AC97 PART ---------------------------/
	36
	37	static struct snd_soc_dai_link db1200_ac97_dai = {
	38	.name = "AC97",
	39	.stream_name = "AC97 HiFi",
f0fba2ad	40	.codec_dai_name = "ac97-hifi",
ffc4fdbb ML	41	.cpu_dai_name = "au1xpsc_ac97.1",
	42	.platform_name = "au1xpsc-pcm.1",
	43	.codec_name = "ac97-codec.1",
05ae3231 ML	44	};
	45
	46	static struct snd_soc_card db1200_ac97_machine = {
	47	.name = "DB1200_AC97",
	48	.dai_link = &db1200_ac97_dai,
	49	.num_links = 1,
05ae3231 ML	50	};
	51
	52	/------------------------- I2S PART ---------------------------/
	53
	54	static int db1200_i2s_startup(struct snd_pcm_substream *substream)
	55	{
	56	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	57	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	58	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
05ae3231 ML	59	int ret;
	60
	61	/* WM8731 has its own 12MHz crystal */
9745e824	62	snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
05ae3231 ML	63	12000000, SND_SOC_CLOCK_IN);
	64
	65	/* codec is bitclock and lrclk master */
	66	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J \|
	67	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBM_CFM);
	68	if (ret < 0)
	69	goto out;
	70
	71	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_LEFT_J \|
	72	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBM_CFM);
	73	if (ret < 0)
	74	goto out;
	75
	76	ret = 0;
	77	out:
	78	return ret;
	79	}
	80
	81	static struct snd_soc_ops db1200_i2s_wm8731_ops = {
	82	.startup = db1200_i2s_startup,
	83	};
	84
	85	static struct snd_soc_dai_link db1200_i2s_dai = {
	86	.name = "WM8731",
	87	.stream_name = "WM8731 PCM",
ffc4fdbb ML	88	.codec_dai_name = "wm8731-hifi",
	89	.cpu_dai_name = "au1xpsc_i2s.1",
	90	.platform_name = "au1xpsc-pcm.1",
99b59f3c	91	.codec_name = "wm8731.0-001b",
05ae3231 ML	92	.ops = &db1200_i2s_wm8731_ops,
	93	};
	94
	95	static struct snd_soc_card db1200_i2s_machine = {
	96	.name = "DB1200_I2S",
	97	.dai_link = &db1200_i2s_dai,
	98	.num_links = 1,
05ae3231 ML	99	};
	100
	101	/------------------------- COMMON PART ---------------------------/
	102
adbc7a5a ML	103	static struct snd_soc_card *db1200_cards[] __devinitdata = {
	104	&db1200_ac97_machine,
	105	&db1200_i2s_machine,
	106	};
05ae3231	107
adbc7a5a	108	static int __devinit db1200_audio_probe(struct platform_device *pdev)
05ae3231	109	{
adbc7a5a ML	110	const struct platform_device_id *pid = platform_get_device_id(pdev);
adbc7a5a ML	111	struct snd_soc_card *card;
05ae3231	112
adbc7a5a ML	113	card = db1200_cards[pid->driver_data];
	114	card->dev = &pdev->dev;
	115	return snd_soc_register_card(card);
	116	}
05ae3231	117
adbc7a5a ML	118	static int __devexit db1200_audio_remove(struct platform_device *pdev)
	119	{
	120	struct snd_soc_card *card = platform_get_drvdata(pdev);
	121	snd_soc_unregister_card(card);
	122	return 0;
	123	}
05ae3231	124
adbc7a5a ML	125	static struct platform_driver db1200_audio_driver = {
	126	.driver = {
	127	.name = "db1200-ac97",
	128	.owner = THIS_MODULE,
	129	.pm = &snd_soc_pm_ops,
	130	},
	131	.id_table = db1200_pids,
	132	.probe = db1200_audio_probe,
	133	.remove = __devexit_p(db1200_audio_remove),
	134	};
05ae3231	135
adbc7a5a ML	136	static int __init db1200_audio_load(void)
	137	{
	138	return platform_driver_register(&db1200_audio_driver);
05ae3231 ML	139	}
	140
	141	static void __exit db1200_audio_unload(void)
	142	{
adbc7a5a	143	platform_driver_unregister(&db1200_audio_driver);
05ae3231 ML	144	}
	145
	146	module_init(db1200_audio_load);
	147	module_exit(db1200_audio_unload);
	148
	149	MODULE_LICENSE("GPL");
	150	MODULE_DESCRIPTION("DB1200 ASoC audio support");
	151	MODULE_AUTHOR("Manuel Lauss");