sound/soc/txx9/txx9aclc-generic.c

   1 /*
   2  * Generic TXx9 ACLC machine driver
   3  *
   4  * Copyright (C) 2009 Atsushi Nemoto
   5  *
   6  * Based on RBTX49xx patch from CELF patch archive.
   7  * (C) Copyright TOSHIBA CORPORATION 2004-2006
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13  * This is a very generic AC97 sound machine driver for boards which
  14  * have (AC97) audio at ACLC (e.g. RBTX49XX boards).
  15  */
  16
  17 #include <linux/module.h>
  18 #include <linux/platform_device.h>
  19 #include <sound/core.h>
  20 #include <sound/pcm.h>
  21 #include <sound/soc.h>
  22 #include "txx9aclc.h"
  23
  24 static struct snd_soc_dai_link txx9aclc_generic_dai = {
  25         .name = "AC97",
  26         .stream_name = "AC97 HiFi",
  27         .cpu_dai_name = "txx9aclc-ac97",
  28         .codec_dai_name = "ac97-hifi",
  29         .platform_name  = "txx9aclc-pcm-audio",
  30         .codec_name     = "ac97-codec",
  31 };
  32
  33 static struct snd_soc_card txx9aclc_generic_card = {
  34         .name           = "Generic TXx9 ACLC Audio",
  35         .dai_link       = &txx9aclc_generic_dai,
  36         .num_links      = 1,
  37 };
  38
  39 static struct platform_device *soc_pdev;
  40
  41 static int __init txx9aclc_generic_probe(struct platform_device *pdev)
  42 {
  43         int ret;
  44
  45         soc_pdev = platform_device_alloc("soc-audio", -1);
  46         if (!soc_pdev)
  47                 return -ENOMEM;
  48         platform_set_drvdata(soc_pdev, &txx9aclc_generic_card);
  49         ret = platform_device_add(soc_pdev);
  50         if (ret) {
  51                 platform_device_put(soc_pdev);
  52                 return ret;
  53         }
  54
  55         return 0;
  56 }
  57
  58 static int __exit txx9aclc_generic_remove(struct platform_device *pdev)
  59 {
  60         platform_device_unregister(soc_pdev);
  61         return 0;
  62 }
  63
  64 static struct platform_driver txx9aclc_generic_driver = {
  65         .remove = __exit_p(txx9aclc_generic_remove),
  66         .driver = {
  67                 .name = "txx9aclc-generic",
  68                 .owner = THIS_MODULE,
  69         },
  70 };
  71
  72 static int __init txx9aclc_generic_init(void)
  73 {
  74         return platform_driver_probe(&txx9aclc_generic_driver,
  75                                      txx9aclc_generic_probe);
  76 }
  77
  78 static void __exit txx9aclc_generic_exit(void)
  79 {
  80         platform_driver_unregister(&txx9aclc_generic_driver);
  81 }
  82
  83 module_init(txx9aclc_generic_init);
  84 module_exit(txx9aclc_generic_exit);
  85
  86 MODULE_AUTHOR("Atsushi Nemoto <anemo@mba.ocn.ne.jp>");
  87 MODULE_DESCRIPTION("Generic TXx9 ACLC ALSA SoC audio driver");
  88 MODULE_LICENSE("GPL");
  89 MODULE_ALIAS("platform:txx9aclc-generic");