sound/soc/codecs/hdmi.c

   1 /*
   2  * ALSA SoC codec driver for HDMI audio codecs.
   3  * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
   4  * Author: Ricardo Neri <ricardo.neri@ti.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  18  * 02110-1301 USA
  19  *
  20  */
  21 #include <linux/module.h>
  22 #include <sound/soc.h>
  23
  24 #define DRV_NAME "hdmi-audio-codec"
  25
  26 static struct snd_soc_codec_driver hdmi_codec;
  27
  28 static struct snd_soc_dai_driver hdmi_codec_dai = {
  29         .name = "hdmi-hifi",
  30         .playback = {
  31                 .channels_min = 2,
  32                 .channels_max = 8,
  33                 .rates = SNDRV_PCM_RATE_32000 |
  34                         SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
  35                         SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
  36                         SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
  37                 .formats = SNDRV_PCM_FMTBIT_S16_LE |
  38                         SNDRV_PCM_FMTBIT_S24_LE,
  39         },
  40 };
  41
  42 static int hdmi_codec_probe(struct platform_device *pdev)
  43 {
  44         return snd_soc_register_codec(&pdev->dev, &hdmi_codec,
  45                         &hdmi_codec_dai, 1);
  46 }
  47
  48 static int hdmi_codec_remove(struct platform_device *pdev)
  49 {
  50         snd_soc_unregister_codec(&pdev->dev);
  51         return 0;
  52 }
  53
  54 static struct platform_driver hdmi_codec_driver = {
  55         .driver         = {
  56                 .name   = DRV_NAME,
  57                 .owner  = THIS_MODULE,
  58         },
  59
  60         .probe          = hdmi_codec_probe,
  61         .remove         = hdmi_codec_remove,
  62 };
  63
  64 module_platform_driver(hdmi_codec_driver);
  65
  66 MODULE_AUTHOR("Ricardo Neri <ricardo.neri@ti.com>");
  67 MODULE_DESCRIPTION("ASoC generic HDMI codec driver");
  68 MODULE_LICENSE("GPL");
  69 MODULE_ALIAS("platform:" DRV_NAME);