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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/sound/soc/samsung/smdk_wm9713.c
10817 views
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/*

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 * smdk_wm9713.c  --  SoC audio for SMDK

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 *

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 * Copyright 2010 Samsung Electronics Co. Ltd.

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 * Author: Jaswinder Singh Brar <[email protected]>

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 *

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

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 * modify it under the terms of the GNU General Public License as

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 * published by the Free Software Foundation; either version 2 of the

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 * License, or (at your option) any later version.

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 *

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 */

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#include <sound/soc.h>

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static struct snd_soc_card smdk;

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/*

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 * Default CFG switch settings to use this driver:

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 *

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 *   SMDK6410: Set CFG1 1-3 On, CFG2 1-4 Off

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 *   SMDKC100: Set CFG6 1-3 On, CFG7 1   On

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 *   SMDKC110: Set CFGB10 1-2 Off, CFGB12 1-3 On

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 *   SMDKV210: Set CFGB10 1-2 Off, CFGB12 1-3 On

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 *   SMDKV310: Set CFG2 1-2 Off, CFG4 All On, CFG7 All Off, CFG8 1-On

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 */

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/*

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 Playback (HeadPhone):-

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	$ amixer sset 'Headphone' unmute

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	$ amixer sset 'Right Headphone Out Mux' 'Headphone'

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	$ amixer sset 'Left Headphone Out Mux' 'Headphone'

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	$ amixer sset 'Right HP Mixer PCM' unmute

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	$ amixer sset 'Left HP Mixer PCM' unmute

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 Capture (LineIn):-

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	$ amixer sset 'Right Capture Source' 'Line'

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	$ amixer sset 'Left Capture Source' 'Line'

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*/

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static struct snd_soc_dai_link smdk_dai = {

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	.name = "AC97",

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	.stream_name = "AC97 PCM",

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	.platform_name = "samsung-audio",

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	.cpu_dai_name = "samsung-ac97",

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	.codec_dai_name = "wm9713-hifi",

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	.codec_name = "wm9713-codec",

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};

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static struct snd_soc_card smdk = {

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	.name = "SMDK WM9713",

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	.dai_link = &smdk_dai,

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	.num_links = 1,

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};

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static struct platform_device *smdk_snd_wm9713_device;

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static struct platform_device *smdk_snd_ac97_device;

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static int __init smdk_init(void)

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{

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	int ret;

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	smdk_snd_wm9713_device = platform_device_alloc("wm9713-codec", -1);

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	if (!smdk_snd_wm9713_device)

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		return -ENOMEM;

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	ret = platform_device_add(smdk_snd_wm9713_device);

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	if (ret)

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		goto err1;

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	smdk_snd_ac97_device = platform_device_alloc("soc-audio", -1);

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	if (!smdk_snd_ac97_device) {

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		ret = -ENOMEM;

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		goto err2;

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	}

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	platform_set_drvdata(smdk_snd_ac97_device, &smdk);

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	ret = platform_device_add(smdk_snd_ac97_device);

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	if (ret)

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		goto err3;

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	return 0;

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err3:

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	platform_device_put(smdk_snd_ac97_device);

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err2:

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	platform_device_del(smdk_snd_wm9713_device);

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err1:

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	platform_device_put(smdk_snd_wm9713_device);

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	return ret;

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}

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static void __exit smdk_exit(void)

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{

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	platform_device_unregister(smdk_snd_ac97_device);

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	platform_device_unregister(smdk_snd_wm9713_device);

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}

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module_init(smdk_init);

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module_exit(smdk_exit);

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/* Module information */

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MODULE_AUTHOR("Jaswinder Singh Brar, [email protected]");

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MODULE_DESCRIPTION("ALSA SoC SMDK+WM9713");

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MODULE_LICENSE("GPL");

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