txx9aclc-generic.c

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/*
 * Generic TXx9 ACLC machine driver
 *
 * Copyright (C) 2009 Atsushi Nemoto
 *
 * Based on RBTX49xx patch from CELF patch archive.
 * (C) Copyright TOSHIBA CORPORATION 2004-2006
 *
 * 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.
 *
 * This is a very generic AC97 sound machine driver for boards which
 * have (AC97) audio at ACLC (e.g. RBTX49XX boards).
 */

#include <linux/module.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include "txx9aclc.h"

static struct snd_soc_dai_link txx9aclc_generic_dai = {
    .name = "AC97",
    .stream_name = "AC97 HiFi",
    .cpu_dai_name = "txx9aclc-ac97",
    .codec_dai_name = "ac97-hifi",
    .platform_name  = "txx9aclc-pcm-audio",
    .codec_name = "ac97-codec",
};

static struct snd_soc_card txx9aclc_generic_card = {
    .name       = "Generic TXx9 ACLC Audio",
    .owner      = THIS_MODULE,
    .dai_link   = &txx9aclc_generic_dai,
    .num_links  = 1,
};

static struct platform_device *soc_pdev;

static int __init txx9aclc_generic_probe(struct platform_device *pdev)
{
    int ret;

    soc_pdev = platform_device_alloc("soc-audio", -1);
    if (!soc_pdev)
        return -ENOMEM;
    platform_set_drvdata(soc_pdev, &txx9aclc_generic_card);
    ret = platform_device_add(soc_pdev);
    if (ret) {
        platform_device_put(soc_pdev);
        return ret;
    }

    return 0;
}

static int __exit txx9aclc_generic_remove(struct platform_device *pdev)
{
    platform_device_unregister(soc_pdev);
    return 0;
}

static struct platform_driver txx9aclc_generic_driver = {
    .remove = __exit_p(txx9aclc_generic_remove),
    .driver = {
        .name = "txx9aclc-generic",
        .owner = THIS_MODULE,
    },
};

static int __init txx9aclc_generic_init(void)
{
    return platform_driver_probe(&txx9aclc_generic_driver,
                     txx9aclc_generic_probe);
}

static void __exit txx9aclc_generic_exit(void)
{
    platform_driver_unregister(&txx9aclc_generic_driver);
}

module_init(txx9aclc_generic_init);
module_exit(txx9aclc_generic_exit);

MODULE_AUTHOR("Atsushi Nemoto <[email protected]>");
MODULE_DESCRIPTION("Generic TXx9 ACLC ALSA SoC audio driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:txx9aclc-generic");