efika-audio-fabric.c

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

#define DRV_NAME "efika-audio-fabric"

static struct snd_soc_dai_link efika_fabric_dai[] = {
{
    .name = "AC97",
    .stream_name = "AC97 Analog",
    .codec_dai_name = "stac9766-hifi-analog",
    .cpu_dai_name = "mpc5200-psc-ac97.0",
    .platform_name = "mpc5200-pcm-audio",
    .codec_name = "stac9766-codec",
},
{
    .name = "AC97",
    .stream_name = "AC97 IEC958",
    .codec_dai_name = "stac9766-hifi-IEC958",
    .cpu_dai_name = "mpc5200-psc-ac97.1",
    .platform_name = "mpc5200-pcm-audio",
    .codec_name = "stac9766-codec",
},
};

static struct snd_soc_card card = {
    .name = "Efika",
    .owner = THIS_MODULE,
    .dai_link = efika_fabric_dai,
    .num_links = ARRAY_SIZE(efika_fabric_dai),
};

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

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

    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, &card);

    rc = platform_device_add(pdev);
    if (rc) {
        pr_err("efika_fabric_init: platform_device_add() failed\n");
        platform_device_put(pdev);
        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");