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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/sound/soc/imx/phycore-ac97.c
10817 views
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/*

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 * phycore-ac97.c  --  SoC audio for imx_phycore in AC97 mode

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 *

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 * Copyright 2009 Sascha Hauer, Pengutronix <[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 <linux/i2c.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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static struct snd_soc_card imx_phycore;

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static struct snd_soc_ops imx_phycore_hifi_ops = {

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};

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static struct snd_soc_dai_link imx_phycore_dai_ac97[] = {

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	{

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		.name		= "HiFi",

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		.stream_name	= "HiFi",

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		.codec_dai_name		= "wm9712-hifi",

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		.codec_name	= "wm9712-codec",

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		.cpu_dai_name	= "imx-ssi.0",

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		.platform_name	= "imx-fiq-pcm-audio.0",

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		.ops		= &imx_phycore_hifi_ops,

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	},

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};

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static struct snd_soc_card imx_phycore = {

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	.name		= "PhyCORE-ac97-audio",

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	.dai_link	= imx_phycore_dai_ac97,

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	.num_links	= ARRAY_SIZE(imx_phycore_dai_ac97),

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};

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static struct platform_device *imx_phycore_snd_ac97_device;

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static struct platform_device *imx_phycore_snd_device;

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static int __init imx_phycore_init(void)

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{

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	int ret;

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	if (!machine_is_pcm043() && !machine_is_pca100())

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		/* return happy. We might run on a totally different machine */

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		return 0;

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	imx_phycore_snd_ac97_device = platform_device_alloc("soc-audio", -1);

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	if (!imx_phycore_snd_ac97_device)

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		return -ENOMEM;

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	platform_set_drvdata(imx_phycore_snd_ac97_device, &imx_phycore);

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	ret = platform_device_add(imx_phycore_snd_ac97_device);

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	if (ret)

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		goto fail1;

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	imx_phycore_snd_device = platform_device_alloc("wm9712-codec", -1);

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	if (!imx_phycore_snd_device) {

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		ret = -ENOMEM;

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		goto fail2;

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	}

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	ret = platform_device_add(imx_phycore_snd_device);

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	if (ret) {

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		printk(KERN_ERR "ASoC: Platform device allocation failed\n");

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		goto fail3;

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	}

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	return 0;

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fail3:

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	platform_device_put(imx_phycore_snd_device);

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fail2:

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	platform_device_del(imx_phycore_snd_ac97_device);

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fail1:

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	platform_device_put(imx_phycore_snd_ac97_device);

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	return ret;

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}

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static void __exit imx_phycore_exit(void)

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{

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	platform_device_unregister(imx_phycore_snd_device);

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	platform_device_unregister(imx_phycore_snd_ac97_device);

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}

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late_initcall(imx_phycore_init);

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module_exit(imx_phycore_exit);

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MODULE_AUTHOR("Sascha Hauer <[email protected]>");

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MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");

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MODULE_LICENSE("GPL");

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