sound/soc/au1x/db1200.c

   1 /*
   2  * DB1200/DB1300/DB1550 ASoC audio fabric support code.
   3  *
   4  * (c) 2008-2011 Manuel Lauss <manuel.lauss@googlemail.com>
   5  *
   6  */
   7
   8 #include <linux/module.h>
   9 #include <linux/moduleparam.h>
  10 #include <linux/timer.h>
  11 #include <linux/interrupt.h>
  12 #include <linux/platform_device.h>
  13 #include <sound/core.h>
  14 #include <sound/pcm.h>
  15 #include <sound/soc.h>
  16 #include <asm/mach-au1x00/au1000.h>
  17 #include <asm/mach-au1x00/au1xxx_psc.h>
  18 #include <asm/mach-au1x00/au1xxx_dbdma.h>
  19 #include <asm/mach-db1x00/bcsr.h>
  20
  21 #include "../codecs/wm8731.h"
  22 #include "psc.h"
  23
  24 static struct platform_device_id db1200_pids[] = {
  25         {
  26                 .name           = "db1200-ac97",
  27                 .driver_data    = 0,
  28         }, {
  29                 .name           = "db1200-i2s",
  30                 .driver_data    = 1,
  31         }, {
  32                 .name           = "db1300-ac97",
  33                 .driver_data    = 2,
  34         }, {
  35                 .name           = "db1300-i2s",
  36                 .driver_data    = 3,
  37         }, {
  38                 .name           = "db1550-ac97",
  39                 .driver_data    = 4,
  40         }, {
  41                 .name           = "db1550-i2s",
  42                 .driver_data    = 5,
  43         },
  44         {},
  45 };
  46
  47 /*-------------------------  AC97 PART  ---------------------------*/
  48
  49 static struct snd_soc_dai_link db1200_ac97_dai = {
  50         .name           = "AC97",
  51         .stream_name    = "AC97 HiFi",
  52         .codec_dai_name = "ac97-hifi",
  53         .cpu_dai_name   = "au1xpsc_ac97.1",
  54         .platform_name  = "au1xpsc-pcm.1",
  55         .codec_name     = "ac97-codec.1",
  56 };
  57
  58 static struct snd_soc_card db1200_ac97_machine = {
  59         .name           = "DB1200_AC97",
  60         .owner          = THIS_MODULE,
  61         .dai_link       = &db1200_ac97_dai,
  62         .num_links      = 1,
  63 };
  64
  65 static struct snd_soc_dai_link db1300_ac97_dai = {
  66         .name           = "AC97",
  67         .stream_name    = "AC97 HiFi",
  68         .codec_dai_name = "wm9712-hifi",
  69         .cpu_dai_name   = "au1xpsc_ac97.1",
  70         .platform_name  = "au1xpsc-pcm.1",
  71         .codec_name     = "wm9712-codec.1",
  72 };
  73
  74 static struct snd_soc_card db1300_ac97_machine = {
  75         .name           = "DB1300_AC97",
  76         .owner          = THIS_MODULE,
  77         .dai_link       = &db1300_ac97_dai,
  78         .num_links      = 1,
  79 };
  80
  81 static struct snd_soc_card db1550_ac97_machine = {
  82         .name           = "DB1550_AC97",
  83         .owner          = THIS_MODULE,
  84         .dai_link       = &db1200_ac97_dai,
  85         .num_links      = 1,
  86 };
  87
  88 /*-------------------------  I2S PART  ---------------------------*/
  89
  90 static int db1200_i2s_startup(struct snd_pcm_substream *substream)
  91 {
  92         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  93         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  94         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  95         int ret;
  96
  97         /* WM8731 has its own 12MHz crystal */
  98         snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
  99                                 12000000, SND_SOC_CLOCK_IN);
 100
 101         /* codec is bitclock and lrclk master */
 102         ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J |
 103                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
 104         if (ret < 0)
 105                 goto out;
 106
 107         ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_LEFT_J |
 108                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
 109         if (ret < 0)
 110                 goto out;
 111
 112         ret = 0;
 113 out:
 114         return ret;
 115 }
 116
 117 static struct snd_soc_ops db1200_i2s_wm8731_ops = {
 118         .startup        = db1200_i2s_startup,
 119 };
 120
 121 static struct snd_soc_dai_link db1200_i2s_dai = {
 122         .name           = "WM8731",
 123         .stream_name    = "WM8731 PCM",
 124         .codec_dai_name = "wm8731-hifi",
 125         .cpu_dai_name   = "au1xpsc_i2s.1",
 126         .platform_name  = "au1xpsc-pcm.1",
 127         .codec_name     = "wm8731.0-001b",
 128         .ops            = &db1200_i2s_wm8731_ops,
 129 };
 130
 131 static struct snd_soc_card db1200_i2s_machine = {
 132         .name           = "DB1200_I2S",
 133         .owner          = THIS_MODULE,
 134         .dai_link       = &db1200_i2s_dai,
 135         .num_links      = 1,
 136 };
 137
 138 static struct snd_soc_dai_link db1300_i2s_dai = {
 139         .name           = "WM8731",
 140         .stream_name    = "WM8731 PCM",
 141         .codec_dai_name = "wm8731-hifi",
 142         .cpu_dai_name   = "au1xpsc_i2s.2",
 143         .platform_name  = "au1xpsc-pcm.2",
 144         .codec_name     = "wm8731.0-001b",
 145         .ops            = &db1200_i2s_wm8731_ops,
 146 };
 147
 148 static struct snd_soc_card db1300_i2s_machine = {
 149         .name           = "DB1300_I2S",
 150         .owner          = THIS_MODULE,
 151         .dai_link       = &db1300_i2s_dai,
 152         .num_links      = 1,
 153 };
 154
 155 static struct snd_soc_dai_link db1550_i2s_dai = {
 156         .name           = "WM8731",
 157         .stream_name    = "WM8731 PCM",
 158         .codec_dai_name = "wm8731-hifi",
 159         .cpu_dai_name   = "au1xpsc_i2s.3",
 160         .platform_name  = "au1xpsc-pcm.3",
 161         .codec_name     = "wm8731.0-001b",
 162         .ops            = &db1200_i2s_wm8731_ops,
 163 };
 164
 165 static struct snd_soc_card db1550_i2s_machine = {
 166         .name           = "DB1550_I2S",
 167         .owner          = THIS_MODULE,
 168         .dai_link       = &db1550_i2s_dai,
 169         .num_links      = 1,
 170 };
 171
 172 /*-------------------------  COMMON PART  ---------------------------*/
 173
 174 static struct snd_soc_card *db1200_cards[] = {
 175         &db1200_ac97_machine,
 176         &db1200_i2s_machine,
 177         &db1300_ac97_machine,
 178         &db1300_i2s_machine,
 179         &db1550_ac97_machine,
 180         &db1550_i2s_machine,
 181 };
 182
 183 static int db1200_audio_probe(struct platform_device *pdev)
 184 {
 185         const struct platform_device_id *pid = platform_get_device_id(pdev);
 186         struct snd_soc_card *card;
 187
 188         card = db1200_cards[pid->driver_data];
 189         card->dev = &pdev->dev;
 190         return snd_soc_register_card(card);
 191 }
 192
 193 static int db1200_audio_remove(struct platform_device *pdev)
 194 {
 195         struct snd_soc_card *card = platform_get_drvdata(pdev);
 196         snd_soc_unregister_card(card);
 197         return 0;
 198 }
 199
 200 static struct platform_driver db1200_audio_driver = {
 201         .driver = {
 202                 .name   = "db1200-ac97",
 203                 .owner  = THIS_MODULE,
 204                 .pm     = &snd_soc_pm_ops,
 205         },
 206         .id_table       = db1200_pids,
 207         .probe          = db1200_audio_probe,
 208         .remove         = db1200_audio_remove,
 209 };
 210
 211 module_platform_driver(db1200_audio_driver);
 212
 213 MODULE_LICENSE("GPL");
 214 MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support");
 215 MODULE_AUTHOR("Manuel Lauss");