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kernel add
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/*
* smdk_wm9713.c -- SoC audio for SMDK
*
* Copyright 2010 Samsung Electronics Co. Ltd.
* Author: Jaswinder Singh Brar <jassisinghbrar@gmail.com>
*
* 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/module.h>
#include <sound/soc.h>
static struct snd_soc_card smdk;
/*
* Default CFG switch settings to use this driver:
*
* SMDK6410: Set CFG1 1-3 On, CFG2 1-4 Off
* SMDKC100: Set CFG6 1-3 On, CFG7 1 On
* SMDKC110: Set CFGB10 1-2 Off, CFGB12 1-3 On
* SMDKV210: Set CFGB10 1-2 Off, CFGB12 1-3 On
* SMDKV310: Set CFG2 1-2 Off, CFG4 All On, CFG7 All Off, CFG8 1-On
*/
/*
Playback (HeadPhone):-
$ amixer sset 'Headphone' unmute
$ amixer sset 'Right Headphone Out Mux' 'Headphone'
$ amixer sset 'Left Headphone Out Mux' 'Headphone'
$ amixer sset 'Right HP Mixer PCM' unmute
$ amixer sset 'Left HP Mixer PCM' unmute
Capture (LineIn):-
$ amixer sset 'Right Capture Source' 'Line'
$ amixer sset 'Left Capture Source' 'Line'
*/
static struct snd_soc_dai_link smdk_dai = {
.name = "AC97",
.stream_name = "AC97 PCM",
.platform_name = "samsung-ac97",
.cpu_dai_name = "samsung-ac97",
.codec_dai_name = "wm9713-hifi",
.codec_name = "wm9713-codec",
};
static struct snd_soc_card smdk = {
.name = "SMDK WM9713",
.owner = THIS_MODULE,
.dai_link = &smdk_dai,
.num_links = 1,
};
static struct platform_device *smdk_snd_wm9713_device;
static struct platform_device *smdk_snd_ac97_device;
static int __init smdk_init(void)
{
int ret;
smdk_snd_wm9713_device = platform_device_alloc("wm9713-codec", -1);
if (!smdk_snd_wm9713_device)
return -ENOMEM;
ret = platform_device_add(smdk_snd_wm9713_device);
if (ret)
goto err1;
smdk_snd_ac97_device = platform_device_alloc("soc-audio", -1);
if (!smdk_snd_ac97_device) {
ret = -ENOMEM;
goto err2;
}
platform_set_drvdata(smdk_snd_ac97_device, &smdk);
ret = platform_device_add(smdk_snd_ac97_device);
if (ret)
goto err3;
return 0;
err3:
platform_device_put(smdk_snd_ac97_device);
err2:
platform_device_del(smdk_snd_wm9713_device);
err1:
platform_device_put(smdk_snd_wm9713_device);
return ret;
}
static void __exit smdk_exit(void)
{
platform_device_unregister(smdk_snd_ac97_device);
platform_device_unregister(smdk_snd_wm9713_device);
}
module_init(smdk_init);
module_exit(smdk_exit);
/* Module information */
MODULE_AUTHOR("Jaswinder Singh Brar, jassisinghbrar@gmail.com");
MODULE_DESCRIPTION("ALSA SoC SMDK+WM9713");
MODULE_LICENSE("GPL");
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