LXR linux/sound/soc/ep93xx/simone.c

   1/*
   2 * simone.c -- ASoC audio for Simplemachines Sim.One board
   3 *
   4 * Copyright (c) 2010 Mika Westerberg
   5 *
   6 * Based on snappercl15 machine driver by Ryan Mallon.
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License version 2 as
  10 * published by the Free Software Foundation.
  11 */
  12
  13#include <linux/init.h>
  14#include <linux/module.h>
  15#include <linux/platform_device.h>
  16
  17#include <sound/core.h>
  18#include <sound/pcm.h>
  19#include <sound/soc.h>
  20
  21#include <asm/mach-types.h>
  22#include <mach/hardware.h>
  23
  24#include "ep93xx-pcm.h"
  25
  26static struct snd_soc_dai_link simone_dai = {
  27        .name           = "AC97",
  28        .stream_name    = "AC97 HiFi",
  29        .cpu_dai_name   = "ep93xx-ac97",
  30        .codec_dai_name = "ac97-hifi",
  31        .codec_name     = "ac97-codec",
  32        .platform_name  = "ep93xx-pcm-audio",
  33};
  34
  35static struct snd_soc_card snd_soc_simone = {
  36        .name           = "Sim.One",
  37        .dai_link       = &simone_dai,
  38        .num_links      = 1,
  39};
  40
  41static struct platform_device *simone_snd_ac97_device;
  42
  43static int __devinit simone_probe(struct platform_device *pdev)
  44{
  45        struct snd_soc_card *card = &snd_soc_simone;
  46        int ret;
  47
  48        simone_snd_ac97_device = platform_device_register_simple("ac97-codec",
  49                                                                 -1, NULL, 0);
  50        if (IS_ERR(simone_snd_ac97_device))
  51                return PTR_ERR(simone_snd_ac97_device);
  52
  53        card->dev = &pdev->dev;
  54
  55        ret = snd_soc_register_card(card);
  56        if (ret) {
  57                dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
  58                        ret);
  59                platform_device_unregister(simone_snd_ac97_device);
  60        }
  61
  62        return ret;
  63}
  64
  65static int __devexit simone_remove(struct platform_device *pdev)
  66{
  67        struct snd_soc_card *card = platform_get_drvdata(pdev);
  68
  69        snd_soc_unregister_card(card);
  70        platform_device_unregister(simone_snd_ac97_device);
  71
  72        return 0;
  73}
  74
  75static struct platform_driver simone_driver = {
  76        .driver         = {
  77                .name   = "simone-audio",
  78                .owner  = THIS_MODULE,
  79        },
  80        .probe          = simone_probe,
  81        .remove         = __devexit_p(simone_remove),
  82};
  83
  84static int __init simone_init(void)
  85{
  86        return platform_driver_register(&simone_driver);
  87}
  88module_init(simone_init);
  89
  90static void __exit simone_exit(void)
  91{
  92        platform_driver_unregister(&simone_driver);
  93}
  94module_exit(simone_exit);
  95
  96MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One");
  97MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
  98MODULE_LICENSE("GPL");
  99MODULE_ALIAS("platform:simone-audio");
 100