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 struct snd_soc_dai_link t5325_dai[] = {
  56 {
  57         .name = "ALC5621",
  58         .stream_name = "ALC5621 HiFi",
  59         .cpu_dai_name = "i2s",
  60         .platform_name = "mvebu-audio",
  61         .codec_dai_name = "alc5621-hifi",
  62         .codec_name = "alc562x-codec.0-001a",
  63         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
  64         .ops = &t5325_ops,
  65 },
  66 };
  67
  68 static struct snd_soc_card t5325 = {
  69         .name = "t5325",
  70         .owner = THIS_MODULE,
  71         .dai_link = t5325_dai,
  72         .num_links = ARRAY_SIZE(t5325_dai),
  73
  74         .dapm_widgets = t5325_dapm_widgets,
  75         .num_dapm_widgets = ARRAY_SIZE(t5325_dapm_widgets),
  76         .dapm_routes = t5325_route,
  77         .num_dapm_routes = ARRAY_SIZE(t5325_route),
  78 };
  79
  80 static int t5325_probe(struct platform_device *pdev)
  81 {
  82         struct snd_soc_card *card = &t5325;
  83         int ret;
  84
  85         card->dev = &pdev->dev;
  86
  87         ret = snd_soc_register_card(card);
  88         if (ret)
  89                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
  90                         ret);
  91         return ret;
  92 }
  93
  94 static int t5325_remove(struct platform_device *pdev)
  95 {
  96         struct snd_soc_card *card = platform_get_drvdata(pdev);
  97
  98         snd_soc_unregister_card(card);
  99         return 0;
 100 }
 101
 102 static struct platform_driver t5325_driver = {
 103         .driver         = {
 104                 .name   = "t5325-audio",
 105                 .owner  = THIS_MODULE,
 106         },
 107         .probe          = t5325_probe,
 108         .remove         = t5325_remove,
 109 };
 110
 111 module_platform_driver(t5325_driver);
 112
 113 MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
 114 MODULE_DESCRIPTION("ALSA SoC t5325 audio client");
 115 MODULE_LICENSE("GPL");
 116 MODULE_ALIAS("platform:t5325-audio");