LXR linux/sound/soc/cirrus/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        .owner          = THIS_MODULE,
  38        .dai_link       = &simone_dai,
  39        .num_links      = 1,
  40};
  41
  42static struct platform_device *simone_snd_ac97_device;
  43
  44static int simone_probe(struct platform_device *pdev)
  45{
  46        struct snd_soc_card *card = &snd_soc_simone;
  47        int ret;
  48
  49        simone_snd_ac97_device = platform_device_register_simple("ac97-codec",
  50                                                                 -1, NULL, 0);
  51        if (IS_ERR(simone_snd_ac97_device))
  52                return PTR_ERR(simone_snd_ac97_device);
  53
  54        card->dev = &pdev->dev;
  55
  56        ret = snd_soc_register_card(card);
  57        if (ret) {
  58                dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
  59                        ret);
  60                platform_device_unregister(simone_snd_ac97_device);
  61        }
  62
  63        return ret;
  64}
  65
  66static int simone_remove(struct platform_device *pdev)
  67{
  68        struct snd_soc_card *card = platform_get_drvdata(pdev);
  69
  70        snd_soc_unregister_card(card);
  71        platform_device_unregister(simone_snd_ac97_device);
  72
  73        return 0;
  74}
  75
  76static struct platform_driver simone_driver = {
  77        .driver         = {
  78                .name   = "simone-audio",
  79                .owner  = THIS_MODULE,
  80        },
  81        .probe          = simone_probe,
  82        .remove         = simone_remove,
  83};
  84
  85module_platform_driver(simone_driver);
  86
  87MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One");
  88MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
  89MODULE_LICENSE("GPL");
  90MODULE_ALIAS("platform:simone-audio");
  91