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         .dai_link       = &db1300_ac97_dai,
  77         .num_links      = 1,
  78 };
  79
  80 static struct snd_soc_card db1550_ac97_machine = {
  81         .name           = "DB1550_AC97",
  82         .dai_link       = &db1200_ac97_dai,
  83         .num_links      = 1,
  84 };
  85
  86 /*-------------------------  I2S PART  ---------------------------*/
  87
  88 static int db1200_i2s_startup(struct snd_pcm_substream *substream)
  89 {
  90         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  91         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  92         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  93         int ret;
  94
  95         /* WM8731 has its own 12MHz crystal */
  96         snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
  97                                 12000000, SND_SOC_CLOCK_IN);
  98
  99         /* codec is bitclock and lrclk master */
 100         ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J |
 101                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
 102         if (ret < 0)
 103                 goto out;
 104
 105         ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_LEFT_J |
 106                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
 107         if (ret < 0)
 108                 goto out;
 109
 110         ret = 0;
 111 out:
 112         return ret;
 113 }
 114
 115 static struct snd_soc_ops db1200_i2s_wm8731_ops = {
 116         .startup        = db1200_i2s_startup,
 117 };
 118
 119 static struct snd_soc_dai_link db1200_i2s_dai = {
 120         .name           = "WM8731",
 121         .stream_name    = "WM8731 PCM",
 122         .codec_dai_name = "wm8731-hifi",
 123         .cpu_dai_name   = "au1xpsc_i2s.1",
 124         .platform_name  = "au1xpsc-pcm.1",
 125         .codec_name     = "wm8731.0-001b",
 126         .ops            = &db1200_i2s_wm8731_ops,
 127 };
 128
 129 static struct snd_soc_card db1200_i2s_machine = {
 130         .name           = "DB1200_I2S",
 131         .owner          = THIS_MODULE,
 132         .dai_link       = &db1200_i2s_dai,
 133         .num_links      = 1,
 134 };
 135
 136 static struct snd_soc_dai_link db1300_i2s_dai = {
 137         .name           = "WM8731",
 138         .stream_name    = "WM8731 PCM",
 139         .codec_dai_name = "wm8731-hifi",
 140         .cpu_dai_name   = "au1xpsc_i2s.2",
 141         .platform_name  = "au1xpsc-pcm.2",
 142         .codec_name     = "wm8731.0-001b",
 143         .ops            = &db1200_i2s_wm8731_ops,
 144 };
 145
 146 static struct snd_soc_card db1300_i2s_machine = {
 147         .name           = "DB1300_I2S",
 148         .dai_link       = &db1300_i2s_dai,
 149         .num_links      = 1,
 150 };
 151
 152 static struct snd_soc_dai_link db1550_i2s_dai = {
 153         .name           = "WM8731",
 154         .stream_name    = "WM8731 PCM",
 155         .codec_dai_name = "wm8731-hifi",
 156         .cpu_dai_name   = "au1xpsc_i2s.3",
 157         .platform_name  = "au1xpsc-pcm.3",
 158         .codec_name     = "wm8731.0-001b",
 159         .ops            = &db1200_i2s_wm8731_ops,
 160 };
 161
 162 static struct snd_soc_card db1550_i2s_machine = {
 163         .name           = "DB1550_I2S",
 164         .dai_link       = &db1550_i2s_dai,
 165         .num_links      = 1,
 166 };
 167
 168 /*-------------------------  COMMON PART  ---------------------------*/
 169
 170 static struct snd_soc_card *db1200_cards[] __devinitdata = {
 171         &db1200_ac97_machine,
 172         &db1200_i2s_machine,
 173         &db1300_ac97_machine,
 174         &db1300_i2s_machine,
 175         &db1550_ac97_machine,
 176         &db1550_i2s_machine,
 177 };
 178
 179 static int __devinit db1200_audio_probe(struct platform_device *pdev)
 180 {
 181         const struct platform_device_id *pid = platform_get_device_id(pdev);
 182         struct snd_soc_card *card;
 183
 184         card = db1200_cards[pid->driver_data];
 185         card->dev = &pdev->dev;
 186         return snd_soc_register_card(card);
 187 }
 188
 189 static int __devexit db1200_audio_remove(struct platform_device *pdev)
 190 {
 191         struct snd_soc_card *card = platform_get_drvdata(pdev);
 192         snd_soc_unregister_card(card);
 193         return 0;
 194 }
 195
 196 static struct platform_driver db1200_audio_driver = {
 197         .driver = {
 198                 .name   = "db1200-ac97",
 199                 .owner  = THIS_MODULE,
 200                 .pm     = &snd_soc_pm_ops,
 201         },
 202         .id_table       = db1200_pids,
 203         .probe          = db1200_audio_probe,
 204         .remove         = __devexit_p(db1200_audio_remove),
 205 };
 206
 207 module_platform_driver(db1200_audio_driver);
 208
 209 MODULE_LICENSE("GPL");
 210 MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support");
 211 MODULE_AUTHOR("Manuel Lauss");