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smdk_wm9713.c

/*
 * smdk_wm9713.c  --  SoC audio for SMDK
 *
 * Copyright 2010 Samsung Electronics Co. Ltd.
 * Author: Jaswinder Singh Brar <jassi.brar@samsung.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/module.h>
#include <linux/device.h>
#include <sound/soc.h>

#include "../codecs/wm9713.h"
#include "s3c-dma.h"
#include "s3c-ac97.h"

static struct snd_soc_card smdk;

/*
 * Default CFG switch settings to use this driver:
 *
 *   SMDK6410: Set CFG1 1-3 On, CFG2 1-4 Off
 */

/*
 Playback (HeadPhone):-
      $ amixer sset 'Headphone' unmute
      $ amixer sset 'Right Headphone Out Mux' 'Headphone'
      $ amixer sset 'Left Headphone Out Mux' 'Headphone'
      $ amixer sset 'Right HP Mixer PCM' unmute
      $ amixer sset 'Left HP Mixer PCM' unmute

 Capture (LineIn):-
      $ amixer sset 'Right Capture Source' 'Line'
      $ amixer sset 'Left Capture Source' 'Line'
*/

static struct snd_soc_dai_link smdk_dai = {
      .name = "AC97",
      .stream_name = "AC97 PCM",
      .cpu_dai = &s3c_ac97_dai[S3C_AC97_DAI_PCM],
      .codec_dai = &wm9713_dai[WM9713_DAI_AC97_HIFI],
};

static struct snd_soc_card smdk = {
      .name = "SMDK",
      .platform = &s3c24xx_soc_platform,
      .dai_link = &smdk_dai,
      .num_links = 1,
};

static struct snd_soc_device smdk_snd_ac97_devdata = {
      .card = &smdk,
      .codec_dev = &soc_codec_dev_wm9713,
};

static struct platform_device *smdk_snd_ac97_device;

static int __init smdk_init(void)
{
      int ret;

      smdk_snd_ac97_device = platform_device_alloc("soc-audio", -1);
      if (!smdk_snd_ac97_device)
            return -ENOMEM;

      platform_set_drvdata(smdk_snd_ac97_device,
                       &smdk_snd_ac97_devdata);
      smdk_snd_ac97_devdata.dev = &smdk_snd_ac97_device->dev;

      ret = platform_device_add(smdk_snd_ac97_device);
      if (ret)
            platform_device_put(smdk_snd_ac97_device);

      return ret;
}

static void __exit smdk_exit(void)
{
      platform_device_unregister(smdk_snd_ac97_device);
}

module_init(smdk_init);
module_exit(smdk_exit);

/* Module information */
MODULE_AUTHOR("Jaswinder Singh Brar, jassi.brar@samsung.com");
MODULE_DESCRIPTION("ALSA SoC SMDK+WM9713");
MODULE_LICENSE("GPL");

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