sound/soc/samsung/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 <sound/soc.h>
  15
  16 static struct snd_soc_card smdk;
  17
  18 /*
  19  * Default CFG switch settings to use this driver:
  20  *
  21  *   SMDK6410: Set CFG1 1-3 On, CFG2 1-4 Off
  22  *   SMDKC100: Set CFG6 1-3 On, CFG7 1   On
  23  *   SMDKC110: Set CFGB10 1-2 Off, CFGB12 1-3 On
  24  *   SMDKV210: Set CFGB10 1-2 Off, CFGB12 1-3 On
  25  *   SMDKV310: Set CFG2 1-2 Off, CFG4 All On, CFG7 All Off, CFG8 1-On
  26  */
  27
  28 /*
  29  Playback (HeadPhone):-
  30         $ amixer sset 'Headphone' unmute
  31         $ amixer sset 'Right Headphone Out Mux' 'Headphone'
  32         $ amixer sset 'Left Headphone Out Mux' 'Headphone'
  33         $ amixer sset 'Right HP Mixer PCM' unmute
  34         $ amixer sset 'Left HP Mixer PCM' unmute
  35
  36  Capture (LineIn):-
  37         $ amixer sset 'Right Capture Source' 'Line'
  38         $ amixer sset 'Left Capture Source' 'Line'
  39 */
  40
  41 static struct snd_soc_dai_link smdk_dai = {
  42         .name = "AC97",
  43         .stream_name = "AC97 PCM",
  44         .platform_name = "samsung-audio",
  45         .cpu_dai_name = "samsung-ac97",
  46         .codec_dai_name = "wm9713-hifi",
  47         .codec_name = "wm9713-codec",
  48 };
  49
  50 static struct snd_soc_card smdk = {
  51         .name = "SMDK WM9713",
  52         .dai_link = &smdk_dai,
  53         .num_links = 1,
  54 };
  55
  56 static struct platform_device *smdk_snd_wm9713_device;
  57 static struct platform_device *smdk_snd_ac97_device;
  58
  59 static int __init smdk_init(void)
  60 {
  61         int ret;
  62
  63         smdk_snd_wm9713_device = platform_device_alloc("wm9713-codec", -1);
  64         if (!smdk_snd_wm9713_device)
  65                 return -ENOMEM;
  66
  67         ret = platform_device_add(smdk_snd_wm9713_device);
  68         if (ret)
  69                 goto err1;
  70
  71         smdk_snd_ac97_device = platform_device_alloc("soc-audio", -1);
  72         if (!smdk_snd_ac97_device) {
  73                 ret = -ENOMEM;
  74                 goto err2;
  75         }
  76
  77         platform_set_drvdata(smdk_snd_ac97_device, &smdk);
  78
  79         ret = platform_device_add(smdk_snd_ac97_device);
  80         if (ret)
  81                 goto err3;
  82
  83         return 0;
  84
  85 err3:
  86         platform_device_put(smdk_snd_ac97_device);
  87 err2:
  88         platform_device_del(smdk_snd_wm9713_device);
  89 err1:
  90         platform_device_put(smdk_snd_wm9713_device);
  91         return ret;
  92 }
  93
  94 static void __exit smdk_exit(void)
  95 {
  96         platform_device_unregister(smdk_snd_ac97_device);
  97         platform_device_unregister(smdk_snd_wm9713_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");