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fsi-ak4642.c

/*
 * FSI-AK464x sound support for ms7724se
 *
 * Copyright (C) 2009 Renesas Solutions Corp.
 * Kuninori Morimoto <morimoto.kuninori@renesas.com>
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/io.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>

#include <sound/sh_fsi.h>
#include <../sound/soc/codecs/ak4642.h>

static struct snd_soc_dai_link fsi_dai_link = {
      .name       = "AK4642",
      .stream_name      = "AK4642",
      .cpu_dai    = &fsi_soc_dai[0], /* fsi */
      .codec_dai  = &ak4642_dai,
      .ops        = NULL,
};

static struct snd_soc_card fsi_soc_card  = {
      .name       = "FSI",
      .platform   = &fsi_soc_platform,
      .dai_link   = &fsi_dai_link,
      .num_links  = 1,
};

static struct snd_soc_device fsi_snd_devdata = {
      .card       = &fsi_soc_card,
      .codec_dev  = &soc_codec_dev_ak4642,
};

#define AK4642_BUS 0
#define AK4642_ADR 0x12
static int ak4642_add_i2c_device(void)
{
      struct i2c_board_info info;
      struct i2c_adapter *adapter;
      struct i2c_client *client;

      memset(&info, 0, sizeof(struct i2c_board_info));
      info.addr = AK4642_ADR;
      strlcpy(info.type, "ak4642", I2C_NAME_SIZE);

      adapter = i2c_get_adapter(AK4642_BUS);
      if (!adapter) {
            printk(KERN_DEBUG "can't get i2c adapter\n");
            return -ENODEV;
      }

      client = i2c_new_device(adapter, &info);
      i2c_put_adapter(adapter);
      if (!client) {
            printk(KERN_DEBUG "can't add i2c device\n");
            return -ENODEV;
      }

      return 0;
}

static struct platform_device *fsi_snd_device;

static int __init fsi_ak4642_init(void)
{
      int ret = -ENOMEM;

      ak4642_add_i2c_device();

      fsi_snd_device = platform_device_alloc("soc-audio", -1);
      if (!fsi_snd_device)
            goto out;

      platform_set_drvdata(fsi_snd_device,
                       &fsi_snd_devdata);
      fsi_snd_devdata.dev = &fsi_snd_device->dev;
      ret = platform_device_add(fsi_snd_device);

      if (ret)
            platform_device_put(fsi_snd_device);

out:
      return ret;
}

static void __exit fsi_ak4642_exit(void)
{
      platform_device_unregister(fsi_snd_device);
}

module_init(fsi_ak4642_init);
module_exit(fsi_ak4642_exit);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Generic SH4 FSI-AK4642 sound card");
MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>");

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