sound/soc/codecs/ad73311.c

   1 /*
   2  * ad73311.c  --  ALSA Soc AD73311 codec support
   3  *
   4  * Copyright:   Analog Device Inc.
   5  * Author:      Cliff Cai <cliff.cai@analog.com>
   6  *
   7  *  This program is free software; you can redistribute  it and/or modify it
   8  *  under  the terms of  the GNU General  Public License as published by the
   9  *  Free Software Foundation;  either version 2 of the  License, or (at your
  10  *  option) any later version.
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/slab.h>
  15 #include <linux/module.h>
  16 #include <linux/kernel.h>
  17 #include <linux/device.h>
  18 #include <sound/core.h>
  19 #include <sound/pcm.h>
  20 #include <sound/ac97_codec.h>
  21 #include <sound/initval.h>
  22 #include <sound/soc.h>
  23
  24 #include "ad73311.h"
  25
  26 static const struct snd_soc_dapm_widget ad73311_dapm_widgets[] = {
  27 SND_SOC_DAPM_INPUT("VINP"),
  28 SND_SOC_DAPM_INPUT("VINN"),
  29 SND_SOC_DAPM_OUTPUT("VOUTN"),
  30 SND_SOC_DAPM_OUTPUT("VOUTP"),
  31 };
  32
  33 static const struct snd_soc_dapm_route ad73311_dapm_routes[] = {
  34         { "Capture", NULL, "VINP" },
  35         { "Capture", NULL, "VINN" },
  36
  37         { "VOUTN", NULL, "Playback" },
  38         { "VOUTP", NULL, "Playback" },
  39 };
  40
  41 static struct snd_soc_dai_driver ad73311_dai = {
  42         .name = "ad73311-hifi",
  43         .playback = {
  44                 .stream_name = "Playback",
  45                 .channels_min = 1,
  46                 .channels_max = 1,
  47                 .rates = SNDRV_PCM_RATE_8000,
  48                 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
  49         .capture = {
  50                 .stream_name = "Capture",
  51                 .channels_min = 1,
  52                 .channels_max = 1,
  53                 .rates = SNDRV_PCM_RATE_8000,
  54                 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
  55 };
  56
  57 static struct snd_soc_codec_driver soc_codec_dev_ad73311 = {
  58         .component_driver = {
  59                 .dapm_widgets           = ad73311_dapm_widgets,
  60                 .num_dapm_widgets       = ARRAY_SIZE(ad73311_dapm_widgets),
  61                 .dapm_routes            = ad73311_dapm_routes,
  62                 .num_dapm_routes        = ARRAY_SIZE(ad73311_dapm_routes),
  63         },
  64 };
  65
  66 static int ad73311_probe(struct platform_device *pdev)
  67 {
  68         return snd_soc_register_codec(&pdev->dev,
  69                         &soc_codec_dev_ad73311, &ad73311_dai, 1);
  70 }
  71
  72 static int ad73311_remove(struct platform_device *pdev)
  73 {
  74         snd_soc_unregister_codec(&pdev->dev);
  75         return 0;
  76 }
  77
  78 static struct platform_driver ad73311_codec_driver = {
  79         .driver = {
  80                         .name = "ad73311",
  81         },
  82
  83         .probe = ad73311_probe,
  84         .remove = ad73311_remove,
  85 };
  86
  87 module_platform_driver(ad73311_codec_driver);
  88
  89 MODULE_DESCRIPTION("ASoC ad73311 driver");
  90 MODULE_AUTHOR("Cliff Cai ");
  91 MODULE_LICENSE("GPL");