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efika-audio-fabric.c

/*
 * Efika driver for the PSC of the Freescale MPC52xx
 * configured as AC97 interface
 *
 * Copyright 2008 Jon Smirl, Digispeaker
 * Author: Jon Smirl <jonsmirl@gmail.com>
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2. This program is licensed "as is" without any warranty of any
 * kind, whether express or implied.
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/dma-mapping.h>

#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/initval.h>
#include <sound/soc.h>
#include <sound/soc-of-simple.h>

#include "mpc5200_dma.h"
#include "mpc5200_psc_ac97.h"
#include "../codecs/stac9766.h"

#define DRV_NAME "efika-audio-fabric"

static struct snd_soc_device device;
static struct snd_soc_card card;

static struct snd_soc_dai_link efika_fabric_dai[] = {
{
      .name = "AC97",
      .stream_name = "AC97 Analog",
      .codec_dai = &stac9766_dai[STAC9766_DAI_AC97_ANALOG],
      .cpu_dai = &psc_ac97_dai[MPC5200_AC97_NORMAL],
},
{
      .name = "AC97",
      .stream_name = "AC97 IEC958",
      .codec_dai = &stac9766_dai[STAC9766_DAI_AC97_DIGITAL],
      .cpu_dai = &psc_ac97_dai[MPC5200_AC97_SPDIF],
},
};

static __init int efika_fabric_init(void)
{
      struct platform_device *pdev;
      int rc;

      if (!machine_is_compatible("bplan,efika"))
            return -ENODEV;

      card.platform = &mpc5200_audio_dma_platform;
      card.name = "Efika";
      card.dai_link = efika_fabric_dai;
      card.num_links = ARRAY_SIZE(efika_fabric_dai);

      device.card = &card;
      device.codec_dev = &soc_codec_dev_stac9766;

      pdev = platform_device_alloc("soc-audio", 1);
      if (!pdev) {
            pr_err("efika_fabric_init: platform_device_alloc() failed\n");
            return -ENODEV;
      }

      platform_set_drvdata(pdev, &device);
      device.dev = &pdev->dev;

      rc = platform_device_add(pdev);
      if (rc) {
            pr_err("efika_fabric_init: platform_device_add() failed\n");
            return -ENODEV;
      }
      return 0;
}

module_init(efika_fabric_init);


MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver");
MODULE_LICENSE("GPL");


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