LXR linux/sound/soc/codecs/ads117x.c

   1/*
   2 * ads117x.c  --  Driver for ads1174/8 ADC chips
   3 *
   4 * Copyright 2009 ShotSpotter Inc.
   5 * Author: Graeme Gregory <gg@slimlogic.co.uk>
   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/kernel.h>
  14#include <linux/slab.h>
  15#include <linux/init.h>
  16#include <linux/device.h>
  17#include <sound/core.h>
  18#include <sound/pcm.h>
  19#include <sound/initval.h>
  20#include <sound/soc.h>
  21
  22#define ADS117X_RATES (SNDRV_PCM_RATE_8000_48000)
  23#define ADS117X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)
  24
  25static struct snd_soc_dai_driver ads117x_dai = {
  26/* ADC */
  27        .name = "ads117x-hifi",
  28        .capture = {
  29                .stream_name = "Capture",
  30                .channels_min = 1,
  31                .channels_max = 32,
  32                .rates = ADS117X_RATES,
  33                .formats = ADS117X_FORMATS,},
  34};
  35
  36static struct snd_soc_codec_driver soc_codec_dev_ads117x;
  37
  38static __devinit int ads117x_probe(struct platform_device *pdev)
  39{
  40        return snd_soc_register_codec(&pdev->dev,
  41                        &soc_codec_dev_ads117x, &ads117x_dai, 1);
  42}
  43
  44static int __devexit ads117x_remove(struct platform_device *pdev)
  45{
  46        snd_soc_unregister_codec(&pdev->dev);
  47        return 0;
  48}
  49
  50static struct platform_driver ads117x_codec_driver = {
  51        .driver = {
  52                        .name = "ads117x-codec",
  53                        .owner = THIS_MODULE,
  54        },
  55
  56        .probe = ads117x_probe,
  57        .remove = __devexit_p(ads117x_remove),
  58};
  59
  60static int __init ads117x_init(void)
  61{
  62        return platform_driver_register(&ads117x_codec_driver);
  63}
  64module_init(ads117x_init);
  65
  66static void __exit ads117x_exit(void)
  67{
  68        platform_driver_unregister(&ads117x_codec_driver);
  69}
  70module_exit(ads117x_exit);
  71
  72MODULE_DESCRIPTION("ASoC ads117x driver");
  73MODULE_AUTHOR("Graeme Gregory");
  74MODULE_LICENSE("GPL");
  75