sound/soc/kirkwood/kirkwood-t5325.c

   1 /*
   2  * kirkwood-t5325.c
   3  *
   4  * (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org>
   5  *
   6  *  This program is free software; you can redistribute  it and/or modify it
   7  *  under  the terms of  the GNU General  Public License as published by the
   8  *  Free Software Foundation;  either version 2 of the  License, or (at your
   9  *  option) any later version.
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/moduleparam.h>
  14 #include <linux/interrupt.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/slab.h>
  17 #include <sound/soc.h>
  18 #include <linux/platform_data/asoc-kirkwood.h>
  19 #include "../codecs/alc5623.h"
  20
  21 static int t5325_hw_params(struct snd_pcm_substream *substream,
  22                 struct snd_pcm_hw_params *params)
  23 {
  24         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  25         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  26         unsigned int freq;
  27
  28         freq = params_rate(params) * 256;
  29
  30         return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
  31
  32 }
  33
  34 static struct snd_soc_ops t5325_ops = {
  35         .hw_params = t5325_hw_params,
  36 };
  37
  38 static const struct snd_soc_dapm_widget t5325_dapm_widgets[] = {
  39         SND_SOC_DAPM_HP("Headphone Jack", NULL),
  40         SND_SOC_DAPM_SPK("Speaker", NULL),
  41         SND_SOC_DAPM_MIC("Mic Jack", NULL),
  42 };
  43
  44 static const struct snd_soc_dapm_route t5325_route[] = {
  45         { "Headphone Jack",     NULL,   "HPL" },
  46         { "Headphone Jack",     NULL,   "HPR" },
  47
  48         {"Speaker",             NULL,   "SPKOUT"},
  49         {"Speaker",             NULL,   "SPKOUTN"},
  50
  51         { "MIC1",               NULL,   "Mic Jack" },
  52         { "MIC2",               NULL,   "Mic Jack" },
  53 };
  54
  55 static int t5325_dai_init(struct snd_soc_pcm_runtime *rtd)
  56 {
  57         struct snd_soc_codec *codec = rtd->codec;
  58         struct snd_soc_dapm_context *dapm = &codec->dapm;
  59
  60         snd_soc_dapm_enable_pin(dapm, "Mic Jack");
  61         snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
  62         snd_soc_dapm_enable_pin(dapm, "Speaker");
  63
  64         return 0;
  65 }
  66
  67 static struct snd_soc_dai_link t5325_dai[] = {
  68 {
  69         .name = "ALC5621",
  70         .stream_name = "ALC5621 HiFi",
  71         .cpu_dai_name = "mvebu-audio",
  72         .platform_name = "mvebu-audio",
  73         .codec_dai_name = "alc5621-hifi",
  74         .codec_name = "alc562x-codec.0-001a",
  75         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
  76         .ops = &t5325_ops,
  77         .init = t5325_dai_init,
  78 },
  79 };
  80
  81 static struct snd_soc_card t5325 = {
  82         .name = "t5325",
  83         .owner = THIS_MODULE,
  84         .dai_link = t5325_dai,
  85         .num_links = ARRAY_SIZE(t5325_dai),
  86
  87         .dapm_widgets = t5325_dapm_widgets,
  88         .num_dapm_widgets = ARRAY_SIZE(t5325_dapm_widgets),
  89         .dapm_routes = t5325_route,
  90         .num_dapm_routes = ARRAY_SIZE(t5325_route),
  91 };
  92
  93 static int t5325_probe(struct platform_device *pdev)
  94 {
  95         struct snd_soc_card *card = &t5325;
  96         int ret;
  97
  98         card->dev = &pdev->dev;
  99
 100         ret = snd_soc_register_card(card);
 101         if (ret)
 102                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 103                         ret);
 104         return ret;
 105 }
 106
 107 static int t5325_remove(struct platform_device *pdev)
 108 {
 109         struct snd_soc_card *card = platform_get_drvdata(pdev);
 110
 111         snd_soc_unregister_card(card);
 112         return 0;
 113 }
 114
 115 static struct platform_driver t5325_driver = {
 116         .driver         = {
 117                 .name   = "t5325-audio",
 118                 .owner  = THIS_MODULE,
 119         },
 120         .probe          = t5325_probe,
 121         .remove         = t5325_remove,
 122 };
 123
 124 module_platform_driver(t5325_driver);
 125
 126 MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
 127 MODULE_DESCRIPTION("ALSA SoC t5325 audio client");
 128 MODULE_LICENSE("GPL");
 129 MODULE_ALIAS("platform:t5325-audio");