sound/soc/sh/fsi-ak4642.c

   1 /*
   2  * FSI-AK464x sound support for ms7724se
   3  *
   4  * Copyright (C) 2009 Renesas Solutions Corp.
   5  * Kuninori Morimoto <morimoto.kuninori@renesas.com>
   6  *
   7  * This file is subject to the terms and conditions of the GNU General Public
   8  * License.  See the file "COPYING" in the main directory of this archive
   9  * for more details.
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/moduleparam.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/i2c.h>
  16 #include <linux/io.h>
  17 #include <sound/core.h>
  18 #include <sound/pcm.h>
  19 #include <sound/soc.h>
  20 #include <sound/soc-dapm.h>
  21
  22 #include <sound/sh_fsi.h>
  23 #include <../sound/soc/codecs/ak4642.h>
  24
  25 static int fsi_ak4642_dai_init(struct snd_soc_codec *codec)
  26 {
  27         int ret;
  28
  29         ret = snd_soc_dai_set_fmt(&ak4642_dai, SND_SOC_DAIFMT_CBM_CFM);
  30         if (ret < 0)
  31                 return ret;
  32
  33         ret = snd_soc_dai_set_sysclk(&ak4642_dai, 0, 11289600, 0);
  34
  35         return ret;
  36 }
  37
  38 static struct snd_soc_dai_link fsi_dai_link = {
  39         .name           = "AK4642",
  40         .stream_name    = "AK4642",
  41         .cpu_dai        = &fsi_soc_dai[0], /* fsi */
  42         .codec_dai      = &ak4642_dai,
  43         .init           = fsi_ak4642_dai_init,
  44         .ops            = NULL,
  45 };
  46
  47 static struct snd_soc_card fsi_soc_card  = {
  48         .name           = "FSI",
  49         .platform       = &fsi_soc_platform,
  50         .dai_link       = &fsi_dai_link,
  51         .num_links      = 1,
  52 };
  53
  54 static struct snd_soc_device fsi_snd_devdata = {
  55         .card           = &fsi_soc_card,
  56         .codec_dev      = &soc_codec_dev_ak4642,
  57 };
  58
  59 static struct platform_device *fsi_snd_device;
  60
  61 static int __init fsi_ak4642_init(void)
  62 {
  63         int ret = -ENOMEM;
  64
  65         fsi_snd_device = platform_device_alloc("soc-audio", -1);
  66         if (!fsi_snd_device)
  67                 goto out;
  68
  69         platform_set_drvdata(fsi_snd_device,
  70                              &fsi_snd_devdata);
  71         fsi_snd_devdata.dev = &fsi_snd_device->dev;
  72         ret = platform_device_add(fsi_snd_device);
  73
  74         if (ret)
  75                 platform_device_put(fsi_snd_device);
  76
  77 out:
  78         return ret;
  79 }
  80
  81 static void __exit fsi_ak4642_exit(void)
  82 {
  83         platform_device_unregister(fsi_snd_device);
  84 }
  85
  86 module_init(fsi_ak4642_init);
  87 module_exit(fsi_ak4642_exit);
  88
  89 MODULE_LICENSE("GPL");
  90 MODULE_DESCRIPTION("Generic SH4 FSI-AK4642 sound card");
  91 MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>");