simone.c

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/*
 * simone.c -- ASoC audio for Simplemachines Sim.One board
 *
 * Copyright (c) 2010 Mika Westerberg
 *
 * Based on snappercl15 machine driver by Ryan Mallon.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/platform_device.h>

#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>

#include <asm/mach-types.h>
#include <mach/hardware.h>

#include "ep93xx-pcm.h"

static struct snd_soc_dai_link simone_dai = {
    .name       = "AC97",
    .stream_name    = "AC97 HiFi",
    .cpu_dai_name   = "ep93xx-ac97",
    .codec_dai_name = "ac97-hifi",
    .codec_name = "ac97-codec",
    .platform_name  = "ep93xx-pcm-audio",
};

static struct snd_soc_card snd_soc_simone = {
    .name       = "Sim.One",
    .owner      = THIS_MODULE,
    .dai_link   = &simone_dai,
    .num_links  = 1,
};

static struct platform_device *simone_snd_ac97_device;

static int __devinit simone_probe(struct platform_device *pdev)
{
    struct snd_soc_card *card = &snd_soc_simone;
    int ret;

    simone_snd_ac97_device = platform_device_register_simple("ac97-codec",
                                 -1, NULL, 0);
    if (IS_ERR(simone_snd_ac97_device))
        return PTR_ERR(simone_snd_ac97_device);

    card->dev = &pdev->dev;

    ret = snd_soc_register_card(card);
    if (ret) {
        dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
            ret);
        platform_device_unregister(simone_snd_ac97_device);
    }

    return ret;
}

static int __devexit simone_remove(struct platform_device *pdev)
{
    struct snd_soc_card *card = platform_get_drvdata(pdev);

    snd_soc_unregister_card(card);
    platform_device_unregister(simone_snd_ac97_device);

    return 0;
}

static struct platform_driver simone_driver = {
    .driver     = {
        .name   = "simone-audio",
        .owner  = THIS_MODULE,
    },
    .probe      = simone_probe,
    .remove     = __devexit_p(simone_remove),
};

module_platform_driver(simone_driver);

MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One");
MODULE_AUTHOR("Mika Westerberg <[email protected]>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:simone-audio");