sound/soc/s3c24xx/smdk_wm9713.c

   1 /*
   2  * smdk_wm9713.c  --  SoC audio for SMDK
   3  *
   4  * Copyright 2010 Samsung Electronics Co. Ltd.
   5  * Author: Jaswinder Singh Brar <jassi.brar@samsung.com>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of the
  10  * License, or (at your option) any later version.
  11  *
  12  */
  13
  14 #include <linux/module.h>
  15 #include <linux/device.h>
  16 #include <sound/soc.h>
  17
  18 #include "s3c-dma.h"
  19 #include "s3c-ac97.h"
  20
  21 static struct snd_soc_card smdk;
  22
  23 /*
  24  * Default CFG switch settings to use this driver:
  25  *
  26  *   SMDK6410: Set CFG1 1-3 On, CFG2 1-4 Off
  27  *   SMDKC100: Set CFG6 1-3 On, CFG7 1   On
  28  *   SMDKC110: Set CFGB10 1-2 Off, CFGB12 1-3 On
  29  *   SMDKV210: Set CFGB10 1-2 Off, CFGB12 1-3 On
  30  */
  31
  32 /*
  33  Playback (HeadPhone):-
  34         $ amixer sset 'Headphone' unmute
  35         $ amixer sset 'Right Headphone Out Mux' 'Headphone'
  36         $ amixer sset 'Left Headphone Out Mux' 'Headphone'
  37         $ amixer sset 'Right HP Mixer PCM' unmute
  38         $ amixer sset 'Left HP Mixer PCM' unmute
  39
  40  Capture (LineIn):-
  41         $ amixer sset 'Right Capture Source' 'Line'
  42         $ amixer sset 'Left Capture Source' 'Line'
  43 */
  44
  45 static struct snd_soc_dai_link smdk_dai = {
  46         .name = "AC97",
  47         .stream_name = "AC97 PCM",
  48         .platform_name = "s3c24xx-pcm-audio",
  49         .cpu_dai_name = "s3c-ac97",
  50         .codec_dai_name = "wm9713-hifi",
  51         .codec_name = "wm9713-codec",
  52 };
  53
  54 static struct snd_soc_card smdk = {
  55         .name = "SMDK WM9713",
  56         .dai_link = &smdk_dai,
  57         .num_links = 1,
  58 };
  59
  60 static struct platform_device *smdk_snd_wm9713_device;
  61 static struct platform_device *smdk_snd_ac97_device;
  62
  63 static int __init smdk_init(void)
  64 {
  65         int ret;
  66
  67         smdk_snd_wm9713_device = platform_device_alloc("wm9713-codec", -1);
  68         if (!smdk_snd_wm9713_device)
  69                 return -ENOMEM;
  70
  71         ret = platform_device_add(smdk_snd_wm9713_device);
  72         if (ret)
  73                 goto err;
  74
  75         smdk_snd_ac97_device = platform_device_alloc("soc-audio", -1);
  76         if (!smdk_snd_ac97_device) {
  77                 ret = -ENOMEM;
  78                 goto err;
  79         }
  80
  81         platform_set_drvdata(smdk_snd_ac97_device, &smdk);
  82
  83         ret = platform_device_add(smdk_snd_ac97_device);
  84         if (ret) {
  85                 platform_device_put(smdk_snd_ac97_device);
  86                 goto err;
  87         }
  88
  89         return 0;
  90 err:
  91         platform_device_put(smdk_snd_wm9713_device);
  92         return ret;
  93 }
  94
  95 static void __exit smdk_exit(void)
  96 {
  97         platform_device_unregister(smdk_snd_ac97_device);
  98 }
  99
 100 module_init(smdk_init);
 101 module_exit(smdk_exit);
 102
 103 /* Module information */
 104 MODULE_AUTHOR("Jaswinder Singh Brar, jassi.brar@samsung.com");
 105 MODULE_DESCRIPTION("ALSA SoC SMDK+WM9713");
 106 MODULE_LICENSE("GPL");