[deliverable/linux.git] / sound / soc / codecs / wm8727.c

/*
 * wm8727.c
 *
 *  Created on: 15-Oct-2009
 *      Author: neil.jones@imgtec.com
 *
 * Copyright (C) 2009 Imagination Technologies Ltd.
 *
 *  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/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <sound/soc.h>

/*
 * Note this is a simple chip with no configuration interface, sample rate is
 * determined automatically by examining the Master clock and Bit clock ratios
 */
#define WM8727_RATES  (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
			SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |\
			SNDRV_PCM_RATE_192000)


static struct snd_soc_dai_driver wm8727_dai = {
	.name = "wm8727-hifi",
	.playback = {
		.stream_name = "Playback",
		.channels_min = 2,
		.channels_max = 2,
		.rates = WM8727_RATES,
		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
		},
};

static struct snd_soc_codec_driver soc_codec_dev_wm8727;

static int wm8727_probe(struct platform_device *pdev)
{
	return snd_soc_register_codec(&pdev->dev,
			&soc_codec_dev_wm8727, &wm8727_dai, 1);
}

static int wm8727_remove(struct platform_device *pdev)
{
	snd_soc_unregister_codec(&pdev->dev);
	return 0;
}

static struct platform_driver wm8727_codec_driver = {
	.driver = {
			.name = "wm8727",
			.owner = THIS_MODULE,
	},

	.probe = wm8727_probe,
	.remove = wm8727_remove,
};

module_platform_driver(wm8727_codec_driver);

MODULE_DESCRIPTION("ASoC wm8727 driver");
MODULE_AUTHOR("Neil Jones");
MODULE_LICENSE("GPL");
Commit	Line	Data
	1	/*
	2	* wm8727.c
	3	*
	4	* Created on: 15-Oct-2009
	5	* Author: neil.jones@imgtec.com
	6	*
	7	* Copyright (C) 2009 Imagination Technologies Ltd.
	8	*
	9	* This program is free software; you can redistribute it and/or modify it
	10	* under the terms of the GNU General Public License as published by the
	11	* Free Software Foundation; either version 2 of the License, or (at your
	12	* option) any later version.
	13	*/
	14
	15	#include <linux/init.h>
	16	#include <linux/slab.h>
	17	#include <linux/module.h>
	18	#include <linux/kernel.h>
	19	#include <linux/device.h>
	20	#include <sound/core.h>
	21	#include <sound/pcm.h>
	22	#include <sound/ac97_codec.h>
	23	#include <sound/initval.h>
	24	#include <sound/soc.h>
	25
	26	/*
	27	* Note this is a simple chip with no configuration interface, sample rate is
	28	* determined automatically by examining the Master clock and Bit clock ratios
	29	*/
	30	#define WM8727_RATES (SNDRV_PCM_RATE_32000 \| SNDRV_PCM_RATE_44100 \|\
	31	SNDRV_PCM_RATE_48000 \| SNDRV_PCM_RATE_96000 \|\
	32	SNDRV_PCM_RATE_192000)
	33
	34
	35	static struct snd_soc_dai_driver wm8727_dai = {
	36	.name = "wm8727-hifi",
	37	.playback = {
	38	.stream_name = "Playback",
	39	.channels_min = 2,
	40	.channels_max = 2,
	41	.rates = WM8727_RATES,
	42	.formats = SNDRV_PCM_FMTBIT_S16_LE \| SNDRV_PCM_FMTBIT_S24_LE,
	43	},
	44	};
	45
	46	static struct snd_soc_codec_driver soc_codec_dev_wm8727;
	47
	48	static int wm8727_probe(struct platform_device *pdev)
	49	{
	50	return snd_soc_register_codec(&pdev->dev,
	51	&soc_codec_dev_wm8727, &wm8727_dai, 1);
	52	}
	53
	54	static int wm8727_remove(struct platform_device *pdev)
	55	{
	56	snd_soc_unregister_codec(&pdev->dev);
	57	return 0;
	58	}
	59
	60	static struct platform_driver wm8727_codec_driver = {
	61	.driver = {
	62	.name = "wm8727",
	63	.owner = THIS_MODULE,
	64	},
	65
	66	.probe = wm8727_probe,
	67	.remove = wm8727_remove,
	68	};
	69
	70	module_platform_driver(wm8727_codec_driver);
	71
	72	MODULE_DESCRIPTION("ASoC wm8727 driver");
	73	MODULE_AUTHOR("Neil Jones");
	74	MODULE_LICENSE("GPL");