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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/platform_device.h>
#include <sound/sh_fsi.h>

00015 struct fsi_ak4642_data {
      const char *name;
      const char *card;
      const char *cpu_dai;
      const char *codec;
      const char *platform;
      int id;
};

static int fsi_ak4642_dai_init(struct snd_soc_pcm_runtime *rtd)
{
      struct snd_soc_dai *dai = rtd->codec_dai;
      int ret;

      ret = snd_soc_dai_set_fmt(dai, SND_SOC_DAIFMT_CBM_CFM);
      if (ret < 0)
            return ret;

      ret = snd_soc_dai_set_sysclk(dai, 0, 11289600, 0);

      return ret;
}

static struct snd_soc_dai_link fsi_dai_link = {
      .codec_dai_name   = "ak4642-hifi",
      .init       = fsi_ak4642_dai_init,
};

static struct snd_soc_card fsi_soc_card  = {
      .dai_link   = &fsi_dai_link,
      .num_links  = 1,
};

static struct platform_device *fsi_snd_device;

static int fsi_ak4642_probe(struct platform_device *pdev)
{
      int ret = -ENOMEM;
      const struct platform_device_id     *id_entry;
      struct fsi_ak4642_data *pdata;

      id_entry = pdev->id_entry;
      if (!id_entry) {
            dev_err(&pdev->dev, "unknown fsi ak4642\n");
            return -ENODEV;
      }

      pdata = (struct fsi_ak4642_data *)id_entry->driver_data;

      fsi_snd_device = platform_device_alloc("soc-audio", pdata->id);
      if (!fsi_snd_device)
            goto out;

      fsi_dai_link.name       = pdata->name;
      fsi_dai_link.stream_name      = pdata->name;
      fsi_dai_link.cpu_dai_name     = pdata->cpu_dai;
      fsi_dai_link.platform_name    = pdata->platform;
      fsi_dai_link.codec_name       = pdata->codec;
      fsi_soc_card.name       = pdata->card;

      platform_set_drvdata(fsi_snd_device, &fsi_soc_card);
      ret = platform_device_add(fsi_snd_device);

      if (ret)
            platform_device_put(fsi_snd_device);

out:
      return ret;
}

static int fsi_ak4642_remove(struct platform_device *pdev)
{
      platform_device_unregister(fsi_snd_device);
      return 0;
}

static struct fsi_ak4642_data fsi_a_ak4642 = {
      .name       = "AK4642",
      .card       = "FSIA (AK4642)",
      .cpu_dai    = "fsia-dai",
      .codec            = "ak4642-codec.0-0012",
      .platform   = "sh_fsi.0",
      .id         = FSI_PORT_A,
};

static struct fsi_ak4642_data fsi_b_ak4642 = {
      .name       = "AK4642",
      .card       = "FSIB (AK4642)",
      .cpu_dai    = "fsib-dai",
      .codec            = "ak4642-codec.0-0012",
      .platform   = "sh_fsi.0",
      .id         = FSI_PORT_B,
};

static struct fsi_ak4642_data fsi_a_ak4643 = {
      .name       = "AK4643",
      .card       = "FSIA (AK4643)",
      .cpu_dai    = "fsia-dai",
      .codec            = "ak4642-codec.0-0013",
      .platform   = "sh_fsi.0",
      .id         = FSI_PORT_A,
};

static struct fsi_ak4642_data fsi_b_ak4643 = {
      .name       = "AK4643",
      .card       = "FSIB (AK4643)",
      .cpu_dai    = "fsib-dai",
      .codec            = "ak4642-codec.0-0013",
      .platform   = "sh_fsi.0",
      .id         = FSI_PORT_B,
};

static struct fsi_ak4642_data fsi2_a_ak4642 = {
      .name       = "AK4642",
      .card       = "FSI2A (AK4642)",
      .cpu_dai    = "fsia-dai",
      .codec            = "ak4642-codec.0-0012",
      .platform   = "sh_fsi2",
      .id         = FSI_PORT_A,
};

static struct fsi_ak4642_data fsi2_b_ak4642 = {
      .name       = "AK4642",
      .card       = "FSI2B (AK4642)",
      .cpu_dai    = "fsib-dai",
      .codec            = "ak4642-codec.0-0012",
      .platform   = "sh_fsi2",
      .id         = FSI_PORT_B,
};

static struct fsi_ak4642_data fsi2_a_ak4643 = {
      .name       = "AK4643",
      .card       = "FSI2A (AK4643)",
      .cpu_dai    = "fsia-dai",
      .codec            = "ak4642-codec.0-0013",
      .platform   = "sh_fsi2",
      .id         = FSI_PORT_A,
};

static struct fsi_ak4642_data fsi2_b_ak4643 = {
      .name       = "AK4643",
      .card       = "FSI2B (AK4643)",
      .cpu_dai    = "fsib-dai",
      .codec            = "ak4642-codec.0-0013",
      .platform   = "sh_fsi2",
      .id         = FSI_PORT_B,
};

static struct platform_device_id fsi_id_table[] = {
      /* FSI */
      { "sh_fsi_a_ak4642",    (kernel_ulong_t)&fsi_a_ak4642 },
      { "sh_fsi_b_ak4642",    (kernel_ulong_t)&fsi_b_ak4642 },
      { "sh_fsi_a_ak4643",    (kernel_ulong_t)&fsi_a_ak4643 },
      { "sh_fsi_b_ak4643",    (kernel_ulong_t)&fsi_b_ak4643 },

      /* FSI 2 */
      { "sh_fsi2_a_ak4642",   (kernel_ulong_t)&fsi2_a_ak4642 },
      { "sh_fsi2_b_ak4642",   (kernel_ulong_t)&fsi2_b_ak4642 },
      { "sh_fsi2_a_ak4643",   (kernel_ulong_t)&fsi2_a_ak4643 },
      { "sh_fsi2_b_ak4643",   (kernel_ulong_t)&fsi2_b_ak4643 },
      {},
};

static struct platform_driver fsi_ak4642 = {
      .driver = {
            .name = "fsi-ak4642-audio",
      },
      .probe            = fsi_ak4642_probe,
      .remove           = fsi_ak4642_remove,
      .id_table   = fsi_id_table,
};

static int __init fsi_ak4642_init(void)
{
      return platform_driver_register(&fsi_ak4642);
}

static void __exit fsi_ak4642_exit(void)
{
      platform_driver_unregister(&fsi_ak4642);
}

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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