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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/sound/soc/pxa/em-x270.c
10817 views
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/*

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 * SoC audio driver for EM-X270, eXeda and CM-X300

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 *

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 * Copyright 2007, 2009 CompuLab, Ltd.

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 *

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 * Author: Mike Rapoport <[email protected]>

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 *

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 * Copied from tosa.c:

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 * Copyright 2005 Wolfson Microelectronics PLC.

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 * Copyright 2005 Openedhand Ltd.

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 *

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 * Authors: Liam Girdwood <[email protected]>

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 *          Richard Purdie <[email protected]>

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 *

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 *  This program is free software; you can redistribute  it and/or modify it

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 *  under  the terms of  the GNU General  Public License as published by the

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 *  Free Software Foundation;  either version 2 of the  License, or (at your

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 *  option) any later version.

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 *

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 */

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#include <linux/module.h>

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#include <linux/moduleparam.h>

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#include <linux/device.h>

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#include <sound/core.h>

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#include <sound/pcm.h>

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#include <sound/soc.h>

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#include <asm/mach-types.h>

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#include <mach/audio.h>

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#include "../codecs/wm9712.h"

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#include "pxa2xx-ac97.h"

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static struct snd_soc_dai_link em_x270_dai[] = {

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	{

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		.name = "AC97",

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		.stream_name = "AC97 HiFi",

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		.cpu_dai_name = "pxa2xx-ac97",

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		.codec_dai_name = "wm9712-hifi",

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		.platform_name = "pxa-pcm-audio",

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		.codec_name = "wm9712-codec",

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	},

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	{

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		.name = "AC97 Aux",

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		.stream_name = "AC97 Aux",

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		.cpu_dai_name = "pxa2xx-ac97-aux",

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		.codec_dai_name ="wm9712-aux",

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		.platform_name = "pxa-pcm-audio",

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		.codec_name = "wm9712-codec",

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	},

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};

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static struct snd_soc_card em_x270 = {

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	.name = "EM-X270",

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	.dai_link = em_x270_dai,

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	.num_links = ARRAY_SIZE(em_x270_dai),

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};

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static struct platform_device *em_x270_snd_device;

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static int __init em_x270_init(void)

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{

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	int ret;

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	if (!(machine_is_em_x270() || machine_is_exeda()

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	      || machine_is_cm_x300()))

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		return -ENODEV;

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	em_x270_snd_device = platform_device_alloc("soc-audio", -1);

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	if (!em_x270_snd_device)

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		return -ENOMEM;

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	platform_set_drvdata(em_x270_snd_device, &em_x270);

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	ret = platform_device_add(em_x270_snd_device);

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	if (ret)

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		platform_device_put(em_x270_snd_device);

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	return ret;

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}

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static void __exit em_x270_exit(void)

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{

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	platform_device_unregister(em_x270_snd_device);

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}

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module_init(em_x270_init);

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module_exit(em_x270_exit);

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/* Module information */

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MODULE_AUTHOR("Mike Rapoport");

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MODULE_DESCRIPTION("ALSA SoC EM-X270, eXeda and CM-X300");

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MODULE_LICENSE("GPL");

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