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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 
 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         .dapm_widgets = ad73311_dapm_widgets,
 59         .num_dapm_widgets = ARRAY_SIZE(ad73311_dapm_widgets),
 60         .dapm_routes = ad73311_dapm_routes,
 61         .num_dapm_routes = ARRAY_SIZE(ad73311_dapm_routes),
 62 };
 63 
 64 static int ad73311_probe(struct platform_device *pdev)
 65 {
 66         return snd_soc_register_codec(&pdev->dev,
 67                         &soc_codec_dev_ad73311, &ad73311_dai, 1);
 68 }
 69 
 70 static int ad73311_remove(struct platform_device *pdev)
 71 {
 72         snd_soc_unregister_codec(&pdev->dev);
 73         return 0;
 74 }
 75 
 76 static struct platform_driver ad73311_codec_driver = {
 77         .driver = {
 78                         .name = "ad73311",
 79                         .owner = THIS_MODULE,
 80         },
 81 
 82         .probe = ad73311_probe,
 83         .remove = ad73311_remove,
 84 };
 85 
 86 module_platform_driver(ad73311_codec_driver);
 87 
 88 MODULE_DESCRIPTION("ASoC ad73311 driver");
 89 MODULE_AUTHOR("Cliff Cai ");
 90 MODULE_LICENSE("GPL");
 91 

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