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kernel/linux-imx6_3.14.28/sound/soc/codecs/ad73311.c 2.23 KB
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  /*
   * ad73311.c  --  ALSA Soc AD73311 codec support
   *
   * Copyright:	Analog Device Inc.
   * Author:	Cliff Cai <cliff.cai@analog.com>
   *
   *  This program is free software; you can redistribute  it and/or modify it
   *  under  the terms of  the GNU General  Public License as published by the
   *  Free Software Foundation;  either version 2 of the  License, or (at your
   *  option) any later version.
   */
  
  #include <linux/init.h>
  #include <linux/slab.h>
  #include <linux/module.h>
  #include <linux/kernel.h>
  #include <linux/device.h>
  #include <sound/core.h>
  #include <sound/pcm.h>
  #include <sound/ac97_codec.h>
  #include <sound/initval.h>
  #include <sound/soc.h>
  
  #include "ad73311.h"
  
  static const struct snd_soc_dapm_widget ad73311_dapm_widgets[] = {
  SND_SOC_DAPM_INPUT("VINP"),
  SND_SOC_DAPM_INPUT("VINN"),
  SND_SOC_DAPM_OUTPUT("VOUTN"),
  SND_SOC_DAPM_OUTPUT("VOUTP"),
  };
  
  static const struct snd_soc_dapm_route ad73311_dapm_routes[] = {
  	{ "Capture", NULL, "VINP" },
  	{ "Capture", NULL, "VINN" },
  
  	{ "VOUTN", NULL, "Playback" },
  	{ "VOUTP", NULL, "Playback" },
  };
  
  static struct snd_soc_dai_driver ad73311_dai = {
  	.name = "ad73311-hifi",
  	.playback = {
  		.stream_name = "Playback",
  		.channels_min = 1,
  		.channels_max = 1,
  		.rates = SNDRV_PCM_RATE_8000,
  		.formats = SNDRV_PCM_FMTBIT_S16_LE, },
  	.capture = {
  		.stream_name = "Capture",
  		.channels_min = 1,
  		.channels_max = 1,
  		.rates = SNDRV_PCM_RATE_8000,
  		.formats = SNDRV_PCM_FMTBIT_S16_LE, },
  };
  
  static struct snd_soc_codec_driver soc_codec_dev_ad73311 = {
  	.dapm_widgets = ad73311_dapm_widgets,
  	.num_dapm_widgets = ARRAY_SIZE(ad73311_dapm_widgets),
  	.dapm_routes = ad73311_dapm_routes,
  	.num_dapm_routes = ARRAY_SIZE(ad73311_dapm_routes),
  };
  
  static int ad73311_probe(struct platform_device *pdev)
  {
  	return snd_soc_register_codec(&pdev->dev,
  			&soc_codec_dev_ad73311, &ad73311_dai, 1);
  }
  
  static int ad73311_remove(struct platform_device *pdev)
  {
  	snd_soc_unregister_codec(&pdev->dev);
  	return 0;
  }
  
  static struct platform_driver ad73311_codec_driver = {
  	.driver = {
  			.name = "ad73311",
  			.owner = THIS_MODULE,
  	},
  
  	.probe = ad73311_probe,
  	.remove = ad73311_remove,
  };
  
  module_platform_driver(ad73311_codec_driver);
  
  MODULE_DESCRIPTION("ASoC ad73311 driver");
  MODULE_AUTHOR("Cliff Cai ");
  MODULE_LICENSE("GPL");