[mirror_ubuntu-artful-kernel.git] / sound / soc / kirkwood / kirkwood-openrd.c

/*
 * kirkwood-openrd.c
 *
 * (c) 2010 Arnaud Patard <apatard@mandriva.com>
 * (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/soc.h>
#include <linux/platform_data/asoc-kirkwood.h>
#include "../codecs/cs42l51.h"

static int openrd_client_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_dai *codec_dai = rtd->codec_dai;
	unsigned int freq;

	switch (params_rate(params)) {
	default:
	case 44100:
		freq = 11289600;
		break;
	case 48000:
		freq = 12288000;
		break;
	case 96000:
		freq = 24576000;
		break;
	}

	return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);

}

static struct snd_soc_ops openrd_client_ops = {
	.hw_params = openrd_client_hw_params,
};


static struct snd_soc_dai_link openrd_client_dai[] = {
{
	.name = "CS42L51",
	.stream_name = "CS42L51 HiFi",
	.cpu_dai_name = "i2s",
	.platform_name = "mvebu-audio",
	.codec_dai_name = "cs42l51-hifi",
	.codec_name = "cs42l51-codec.0-004a",
	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
	.ops = &openrd_client_ops,
},
};


static struct snd_soc_card openrd_client = {
	.name = "OpenRD Client",
	.owner = THIS_MODULE,
	.dai_link = openrd_client_dai,
	.num_links = ARRAY_SIZE(openrd_client_dai),
};

static int openrd_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &openrd_client;
	int ret;

	card->dev = &pdev->dev;

	ret = snd_soc_register_card(card);
	if (ret)
		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
			ret);
	return ret;
}

static int openrd_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 openrd_driver = {
	.driver		= {
		.name	= "openrd-client-audio",
		.owner	= THIS_MODULE,
	},
	.probe		= openrd_probe,
	.remove		= openrd_remove,
};

module_platform_driver(openrd_driver);

/* Module information */
MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
MODULE_DESCRIPTION("ALSA SoC OpenRD Client");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:openrd-client-audio");
Commit	Line	Data
2e8693ee	1	/*
	2	* kirkwood-openrd.c
	3	*
	4	* (c) 2010 Arnaud Patard <apatard@mandriva.com>
69737897	5	* (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org>
2e8693ee	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License as published by the
	9	* Free Software Foundation; either version 2 of the License, or (at your
	10	* option) any later version.
	11	*/
	12
	13	#include <linux/module.h>
	14	#include <linux/moduleparam.h>
	15	#include <linux/interrupt.h>
	16	#include <linux/platform_device.h>
	17	#include <linux/slab.h>
	18	#include <sound/soc.h>
c02cecb9	19	#include <linux/platform_data/asoc-kirkwood.h>
2e8693ee	20	#include "../codecs/cs42l51.h"
	21
	22	static int openrd_client_hw_params(struct snd_pcm_substream *substream,
	23	struct snd_pcm_hw_params *params)
	24	{
	25	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	26	struct snd_soc_dai *codec_dai = rtd->codec_dai;
077a2ba4	27	unsigned int freq;
2e8693ee	28
	29	switch (params_rate(params)) {
	30	default:
	31	case 44100:
	32	freq = 11289600;
	33	break;
	34	case 48000:
	35	freq = 12288000;
	36	break;
	37	case 96000:
	38	freq = 24576000;
	39	break;
	40	}
	41
	42	return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
	43
	44	}
	45
	46	static struct snd_soc_ops openrd_client_ops = {
	47	.hw_params = openrd_client_hw_params,
	48	};
	49
	50
	51	static struct snd_soc_dai_link openrd_client_dai[] = {
	52	{
	53	.name = "CS42L51",
	54	.stream_name = "CS42L51 HiFi",
75b9b65e	55	.cpu_dai_name = "i2s",
64ddf1f8	56	.platform_name = "mvebu-audio",
c88e7b93	57	.codec_dai_name = "cs42l51-hifi",
f0fba2ad	58	.codec_name = "cs42l51-codec.0-004a",
077a2ba4	59	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_CBS_CFS,
2e8693ee	60	.ops = &openrd_client_ops,
	61	},
	62	};
	63
	64
	65	static struct snd_soc_card openrd_client = {
	66	.name = "OpenRD Client",
9b344ce8	67	.owner = THIS_MODULE,
2e8693ee	68	.dai_link = openrd_client_dai,
	69	.num_links = ARRAY_SIZE(openrd_client_dai),
	70	};
	71
34e15fbd	72	static int openrd_probe(struct platform_device *pdev)
2e8693ee	73	{
6d6761aa	74	struct snd_soc_card *card = &openrd_client;
2e8693ee	75	int ret;
2e8693ee	76
6d6761aa	77	card->dev = &pdev->dev;
2e8693ee	78
6d6761aa AL	79	ret = snd_soc_register_card(card);
	80	if (ret)
	81	dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
	82	ret);
2e8693ee	83	return ret;
	84	}
	85
34e15fbd	86	static int openrd_remove(struct platform_device *pdev)
2e8693ee	87	{
6d6761aa AL	88	struct snd_soc_card *card = platform_get_drvdata(pdev);
	89
	90	snd_soc_unregister_card(card);
	91	return 0;
2e8693ee	92	}
2e8693ee	93
6d6761aa AL	94	static struct platform_driver openrd_driver = {
	95	.driver = {
	96	.name = "openrd-client-audio",
	97	.owner = THIS_MODULE,
	98	},
	99	.probe = openrd_probe,
34e15fbd	100	.remove = openrd_remove,
6d6761aa AL	101	};
	102
	103	module_platform_driver(openrd_driver);
2e8693ee	104
2e8693ee	105	/* Module information */
69737897	106	MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
2e8693ee	107	MODULE_DESCRIPTION("ALSA SoC OpenRD Client");
2e8693ee	108	MODULE_LICENSE("GPL");
6d6761aa	109	MODULE_ALIAS("platform:openrd-client-audio");