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 <linux/module.h>
  15 #include <sound/soc.h>
  16
  17 static struct snd_soc_card smdk;
  18
  19 /*
  20  * Default CFG switch settings to use this driver:
  21  *
  22  *   SMDK6410: Set CFG1 1-3 On, CFG2 1-4 Off
  23  *   SMDKC100: Set CFG6 1-3 On, CFG7 1   On
  24  *   SMDKC110: Set CFGB10 1-2 Off, CFGB12 1-3 On
  25  *   SMDKV210: Set CFGB10 1-2 Off, CFGB12 1-3 On
  26  *   SMDKV310: Set CFG2 1-2 Off, CFG4 All On, CFG7 All Off, CFG8 1-On
  27  */
  28
  29 /*
  30  Playback (HeadPhone):-
  31         $ amixer sset 'Headphone' unmute
  32         $ amixer sset 'Right Headphone Out Mux' 'Headphone'
  33         $ amixer sset 'Left Headphone Out Mux' 'Headphone'
  34         $ amixer sset 'Right HP Mixer PCM' unmute
  35         $ amixer sset 'Left HP Mixer PCM' unmute
  36
  37  Capture (LineIn):-
  38         $ amixer sset 'Right Capture Source' 'Line'
  39         $ amixer sset 'Left Capture Source' 'Line'
  40 */
  41
  42 static struct snd_soc_dai_link smdk_dai = {
  43         .name = "AC97",
  44         .stream_name = "AC97 PCM",
  45         .platform_name = "samsung-audio",
  46         .cpu_dai_name = "samsung-ac97",
  47         .codec_dai_name = "wm9713-hifi",
  48         .codec_name = "wm9713-codec",
  49 };
  50
  51 static struct snd_soc_card smdk = {
  52         .name = "SMDK WM9713",
  53         .dai_link = &smdk_dai,
  54         .num_links = 1,
  55 };
  56
  57 static struct platform_device *smdk_snd_wm9713_device;
  58 static struct platform_device *smdk_snd_ac97_device;
  59
  60 static int __init smdk_init(void)
  61 {
  62         int ret;
  63
  64         smdk_snd_wm9713_device = platform_device_alloc("wm9713-codec", -1);
  65         if (!smdk_snd_wm9713_device)
  66                 return -ENOMEM;
  67
  68         ret = platform_device_add(smdk_snd_wm9713_device);
  69         if (ret)
  70                 goto err1;
  71
  72         smdk_snd_ac97_device = platform_device_alloc("soc-audio", -1);
  73         if (!smdk_snd_ac97_device) {
  74                 ret = -ENOMEM;
  75                 goto err2;
  76         }
  77
  78         platform_set_drvdata(smdk_snd_ac97_device, &smdk);
  79
  80         ret = platform_device_add(smdk_snd_ac97_device);
  81         if (ret)
  82                 goto err3;
  83
  84         return 0;
  85
  86 err3:
  87         platform_device_put(smdk_snd_ac97_device);
  88 err2:
  89         platform_device_del(smdk_snd_wm9713_device);
  90 err1:
  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         platform_device_unregister(smdk_snd_wm9713_device);
  99 }
 100
 101 module_init(smdk_init);
 102 module_exit(smdk_exit);
 103
 104 /* Module information */
 105 MODULE_AUTHOR("Jaswinder Singh Brar, jassi.brar@samsung.com");
 106 MODULE_DESCRIPTION("ALSA SoC SMDK+WM9713");
 107 MODULE_LICENSE("GPL");