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 <linux/device.h>
  16 #include <sound/soc.h>
  17
  18 #include "dma.h"
  19 #include "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  *   SMDKV310: Set CFG2 1-2 Off, CFG4 All On, CFG7 All Off, CFG8 1-On
  31  */
  32
  33 /*
  34  Playback (HeadPhone):-
  35         $ amixer sset 'Headphone' unmute
  36         $ amixer sset 'Right Headphone Out Mux' 'Headphone'
  37         $ amixer sset 'Left Headphone Out Mux' 'Headphone'
  38         $ amixer sset 'Right HP Mixer PCM' unmute
  39         $ amixer sset 'Left HP Mixer PCM' unmute
  40
  41  Capture (LineIn):-
  42         $ amixer sset 'Right Capture Source' 'Line'
  43         $ amixer sset 'Left Capture Source' 'Line'
  44 */
  45
  46 static struct snd_soc_dai_link smdk_dai = {
  47         .name = "AC97",
  48         .stream_name = "AC97 PCM",
  49         .platform_name = "samsung-audio",
  50         .cpu_dai_name = "samsung-ac97",
  51         .codec_dai_name = "wm9713-hifi",
  52         .codec_name = "wm9713-codec",
  53 };
  54
  55 static struct snd_soc_card smdk = {
  56         .name = "SMDK WM9713",
  57         .dai_link = &smdk_dai,
  58         .num_links = 1,
  59 };
  60
  61 static struct platform_device *smdk_snd_wm9713_device;
  62 static struct platform_device *smdk_snd_ac97_device;
  63
  64 static int __init smdk_init(void)
  65 {
  66         int ret;
  67
  68         smdk_snd_wm9713_device = platform_device_alloc("wm9713-codec", -1);
  69         if (!smdk_snd_wm9713_device)
  70                 return -ENOMEM;
  71
  72         ret = platform_device_add(smdk_snd_wm9713_device);
  73         if (ret)
  74                 goto err1;
  75
  76         smdk_snd_ac97_device = platform_device_alloc("soc-audio", -1);
  77         if (!smdk_snd_ac97_device) {
  78                 ret = -ENOMEM;
  79                 goto err2;
  80         }
  81
  82         platform_set_drvdata(smdk_snd_ac97_device, &smdk);
  83
  84         ret = platform_device_add(smdk_snd_ac97_device);
  85         if (ret)
  86                 goto err3;
  87
  88         return 0;
  89
  90 err3:
  91         platform_device_put(smdk_snd_ac97_device);
  92 err2:
  93         platform_device_del(smdk_snd_wm9713_device);
  94 err1:
  95         platform_device_put(smdk_snd_wm9713_device);
  96         return ret;
  97 }
  98
  99 static void __exit smdk_exit(void)
 100 {
 101         platform_device_unregister(smdk_snd_ac97_device);
 102         platform_device_unregister(smdk_snd_wm9713_device);
 103 }
 104
 105 module_init(smdk_init);
 106 module_exit(smdk_exit);
 107
 108 /* Module information */
 109 MODULE_AUTHOR("Jaswinder Singh Brar, jassi.brar@samsung.com");
 110 MODULE_DESCRIPTION("ALSA SoC SMDK+WM9713");
 111 MODULE_LICENSE("GPL");