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phycore-ac97.c

/*
 * phycore-ac97.c  --  SoC audio for imx_phycore in AC97 mode
 *
 * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
 *
 *  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/moduleparam.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <asm/mach-types.h>

static struct snd_soc_card imx_phycore;

static struct snd_soc_ops imx_phycore_hifi_ops = {
};

static struct snd_soc_dai_link imx_phycore_dai_ac97[] = {
      {
            .name       = "HiFi",
            .stream_name      = "HiFi",
            .codec_dai_name         = "wm9712-hifi",
            .codec_name = "wm9712-codec",
            .cpu_dai_name     = "imx-ssi.0",
            .platform_name    = "imx-fiq-pcm-audio.0",
            .ops        = &imx_phycore_hifi_ops,
      },
};

static struct snd_soc_card imx_phycore = {
      .name       = "PhyCORE-ac97-audio",
      .dai_link   = imx_phycore_dai_ac97,
      .num_links  = ARRAY_SIZE(imx_phycore_dai_ac97),
};

static struct platform_device *imx_phycore_snd_ac97_device;
static struct platform_device *imx_phycore_snd_device;

static int __init imx_phycore_init(void)
{
      int ret;

      if (!machine_is_pcm043() && !machine_is_pca100())
            /* return happy. We might run on a totally different machine */
            return 0;

      imx_phycore_snd_ac97_device = platform_device_alloc("soc-audio", -1);
      if (!imx_phycore_snd_ac97_device)
            return -ENOMEM;

      platform_set_drvdata(imx_phycore_snd_ac97_device, &imx_phycore);
      ret = platform_device_add(imx_phycore_snd_ac97_device);
      if (ret)
            goto fail1;

      imx_phycore_snd_device = platform_device_alloc("wm9712-codec", -1);
      if (!imx_phycore_snd_device) {
            ret = -ENOMEM;
            goto fail2;
      }
      ret = platform_device_add(imx_phycore_snd_device);

      if (ret) {
            printk(KERN_ERR "ASoC: Platform device allocation failed\n");
            goto fail3;
      }

      return 0;

fail3:
      platform_device_put(imx_phycore_snd_device);
fail2:
      platform_device_del(imx_phycore_snd_ac97_device);
fail1:
      platform_device_put(imx_phycore_snd_ac97_device);
      return ret;
}

static void __exit imx_phycore_exit(void)
{
      platform_device_unregister(imx_phycore_snd_device);
      platform_device_unregister(imx_phycore_snd_ac97_device);
}

late_initcall(imx_phycore_init);
module_exit(imx_phycore_exit);

MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
MODULE_LICENSE("GPL");

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