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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/sound/soc/ep93xx/simone.c
10817 views
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/*

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 * simone.c -- ASoC audio for Simplemachines Sim.One board

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 *

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 * Copyright (c) 2010 Mika Westerberg

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 *

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 * Based on snappercl15 machine driver by Ryan Mallon.

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 *

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

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 * it under the terms of the GNU General Public License version 2 as

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 * published by the Free Software Foundation.

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 */

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#include <linux/init.h>

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#include <linux/module.h>

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#include <linux/platform_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/hardware.h>

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#include "ep93xx-pcm.h"

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static struct snd_soc_dai_link simone_dai = {

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	.name		= "AC97",

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	.stream_name	= "AC97 HiFi",

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	.cpu_dai_name	= "ep93xx-ac97",

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	.codec_dai_name	= "ac97-hifi",

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	.codec_name	= "ac97-codec",

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	.platform_name	= "ep93xx-pcm-audio",

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};

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static struct snd_soc_card snd_soc_simone = {

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	.name		= "Sim.One",

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	.dai_link	= &simone_dai,

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	.num_links	= 1,

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};

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static struct platform_device *simone_snd_ac97_device;

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static struct platform_device *simone_snd_device;

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static int __init simone_init(void)

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{

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	int ret;

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	if (!machine_is_sim_one())

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		return -ENODEV;

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	simone_snd_ac97_device = platform_device_alloc("ac97-codec", -1);

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	if (!simone_snd_ac97_device)

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		return -ENOMEM;

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	ret = platform_device_add(simone_snd_ac97_device);

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	if (ret)

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		goto fail1;

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

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	if (!simone_snd_device) {

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		ret = -ENOMEM;

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		goto fail2;

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	}

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	platform_set_drvdata(simone_snd_device, &snd_soc_simone);

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	ret = platform_device_add(simone_snd_device);

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	if (ret)

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		goto fail3;

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	return 0;

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fail3:

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	platform_device_put(simone_snd_device);

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fail2:

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	platform_device_del(simone_snd_ac97_device);

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fail1:

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	platform_device_put(simone_snd_ac97_device);

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	return ret;

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}

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module_init(simone_init);

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static void __exit simone_exit(void)

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{

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	platform_device_unregister(simone_snd_device);

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	platform_device_unregister(simone_snd_ac97_device);

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}

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module_exit(simone_exit);

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MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One");

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MODULE_AUTHOR("Mika Westerberg <[email protected]>");

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MODULE_LICENSE("GPL");

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