LXR linux/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
  26static const struct snd_soc_dapm_widget ad73311_dapm_widgets[] = {
  27SND_SOC_DAPM_INPUT("VINP"),
  28SND_SOC_DAPM_INPUT("VINN"),
  29SND_SOC_DAPM_OUTPUT("VOUTN"),
  30SND_SOC_DAPM_OUTPUT("VOUTP"),
  31};
  32
  33static 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
  41static 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
  57static const 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
  66static 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
  72static int ad73311_remove(struct platform_device *pdev)
  73{
  74        snd_soc_unregister_codec(&pdev->dev);
  75        return 0;
  76}
  77
  78static struct platform_driver ad73311_codec_driver = {
  79        .driver = {
  80                        .name = "ad73311",
  81        },
  82
  83        .probe = ad73311_probe,
  84        .remove = ad73311_remove,
  85};
  86
  87module_platform_driver(ad73311_codec_driver);
  88
  89MODULE_DESCRIPTION("ASoC ad73311 driver");
  90MODULE_AUTHOR("Cliff Cai ");
  91MODULE_LICENSE("GPL");
  92