LXR linux/sound/soc/pxa/e800

   1/*
   2 * e800-wm9712.c  --  SoC audio for e800
   3 *
   4 * Based on tosa.c
   5 *
   6 * Copyright 2007 (c) Ian Molton <spyro@f2s.com>
   7 *
   8 *  This program is free software; you can redistribute  it and/or modify it
   9 *  under  the terms of  the GNU General  Public License as published by the
  10 *  Free Software Foundation; version 2 ONLY.
  11 *
  12 */
  13
  14#include <linux/module.h>
  15#include <linux/moduleparam.h>
  16#include <linux/device.h>
  17
  18#include <sound/core.h>
  19#include <sound/pcm.h>
  20#include <sound/soc.h>
  21#include <sound/soc-dapm.h>
  22
  23#include <asm/mach-types.h>
  24#include <mach/pxa-regs.h>
  25#include <mach/hardware.h>
  26#include <mach/audio.h>
  27
  28#include "../codecs/wm9712.h"
  29#include "pxa2xx-pcm.h"
  30#include "pxa2xx-ac97.h"
  31
  32static struct snd_soc_machine e800;
  33
  34static struct snd_soc_dai_link e800_dai[] = {
  35{
  36        .name = "AC97 Aux",
  37        .stream_name = "AC97 Aux",
  38        .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
  39        .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
  40},
  41};
  42
  43static struct snd_soc_machine e800 = {
  44        .name = "Toshiba e800",
  45        .dai_link = e800_dai,
  46        .num_links = ARRAY_SIZE(e800_dai),
  47};
  48
  49static struct snd_soc_device e800_snd_devdata = {
  50        .machine = &e800,
  51        .platform = &pxa2xx_soc_platform,
  52        .codec_dev = &soc_codec_dev_wm9712,
  53};
  54
  55static struct platform_device *e800_snd_device;
  56
  57static int __init e800_init(void)
  58{
  59        int ret;
  60
  61        if (!machine_is_e800())
  62                return -ENODEV;
  63
  64        e800_snd_device = platform_device_alloc("soc-audio", -1);
  65        if (!e800_snd_device)
  66                return -ENOMEM;
  67
  68        platform_set_drvdata(e800_snd_device, &e800_snd_devdata);
  69        e800_snd_devdata.dev = &e800_snd_device->dev;
  70        ret = platform_device_add(e800_snd_device);
  71
  72        if (ret)
  73                platform_device_put(e800_snd_device);
  74
  75        return ret;
  76}
  77
  78static void __exit e800_exit(void)
  79{
  80        platform_device_unregister(e800_snd_device);
  81}
  82
  83module_init(e800_init);
  84module_exit(e800_exit);
  85
  86/* Module information */
  87MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
  88MODULE_DESCRIPTION("ALSA SoC driver for e800");
  89MODULE_LICENSE("GPL");
  90