release/src-rt-6.x.4708/linux/linux-2.6.36/sound/soc/pxa/palm27x.c

   1 /*
   2  * linux/sound/soc/pxa/palm27x.c
   3  *
   4  * SoC Audio driver for Palm T|X, T5 and LifeDrive
   5  *
   6  * based on tosa.c
   7  *
   8  * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14  */
  15
  16 #include <linux/module.h>
  17 #include <linux/moduleparam.h>
  18 #include <linux/device.h>
  19 #include <linux/gpio.h>
  20
  21 #include <sound/core.h>
  22 #include <sound/pcm.h>
  23 #include <sound/soc.h>
  24 #include <sound/soc-dapm.h>
  25 #include <sound/jack.h>
  26
  27 #include <asm/mach-types.h>
  28 #include <mach/audio.h>
  29 #include <mach/palmasoc.h>
  30
  31 #include "../codecs/wm9712.h"
  32 #include "pxa2xx-pcm.h"
  33 #include "pxa2xx-ac97.h"
  34
  35 static struct snd_soc_jack hs_jack;
  36
  37 /* Headphones jack detection DAPM pins */
  38 static struct snd_soc_jack_pin hs_jack_pins[] = {
  39         {
  40                 .pin    = "Headphone Jack",
  41                 .mask   = SND_JACK_HEADPHONE,
  42         },
  43 };
  44
  45 /* Headphones jack detection gpios */
  46 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
  47         [0] = {
  48                 /* gpio is set on per-platform basis */
  49                 .name           = "hp-gpio",
  50                 .report         = SND_JACK_HEADPHONE,
  51                 .debounce_time  = 200,
  52         },
  53 };
  54
  55 /* Palm27x machine dapm widgets */
  56 static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
  57         SND_SOC_DAPM_HP("Headphone Jack", NULL),
  58         SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
  59         SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
  60 };
  61
  62 /* PalmTX audio map */
  63 static const struct snd_soc_dapm_route audio_map[] = {
  64         /* headphone connected to HPOUTL, HPOUTR */
  65         {"Headphone Jack", NULL, "HPOUTL"},
  66         {"Headphone Jack", NULL, "HPOUTR"},
  67
  68         /* ext speaker connected to ROUT2, LOUT2 */
  69         {"Ext. Speaker", NULL, "LOUT2"},
  70         {"Ext. Speaker", NULL, "ROUT2"},
  71
  72         /* mic connected to MIC1 */
  73         {"Ext. Microphone", NULL, "MIC1"},
  74 };
  75
  76 static struct snd_soc_card palm27x_asoc;
  77
  78 static int palm27x_ac97_init(struct snd_soc_codec *codec)
  79 {
  80         int err;
  81
  82         /* add palm27x specific widgets */
  83         err = snd_soc_dapm_new_controls(codec, palm27x_dapm_widgets,
  84                                 ARRAY_SIZE(palm27x_dapm_widgets));
  85         if (err)
  86                 return err;
  87
  88         /* set up palm27x specific audio path audio_map */
  89         err = snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
  90         if (err)
  91                 return err;
  92
  93         /* connected pins */
  94         if (machine_is_palmld())
  95                 snd_soc_dapm_enable_pin(codec, "MIC1");
  96         snd_soc_dapm_enable_pin(codec, "HPOUTL");
  97         snd_soc_dapm_enable_pin(codec, "HPOUTR");
  98         snd_soc_dapm_enable_pin(codec, "LOUT2");
  99         snd_soc_dapm_enable_pin(codec, "ROUT2");
 100
 101         /* not connected pins */
 102         snd_soc_dapm_nc_pin(codec, "OUT3");
 103         snd_soc_dapm_nc_pin(codec, "MONOOUT");
 104         snd_soc_dapm_nc_pin(codec, "LINEINL");
 105         snd_soc_dapm_nc_pin(codec, "LINEINR");
 106         snd_soc_dapm_nc_pin(codec, "PCBEEP");
 107         snd_soc_dapm_nc_pin(codec, "PHONE");
 108         snd_soc_dapm_nc_pin(codec, "MIC2");
 109
 110         err = snd_soc_dapm_sync(codec);
 111         if (err)
 112                 return err;
 113
 114         /* Jack detection API stuff */
 115         err = snd_soc_jack_new(&palm27x_asoc, "Headphone Jack",
 116                                 SND_JACK_HEADPHONE, &hs_jack);
 117         if (err)
 118                 return err;
 119
 120         err = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
 121                                 hs_jack_pins);
 122         if (err)
 123                 return err;
 124
 125         err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
 126                                 hs_jack_gpios);
 127
 128         return err;
 129 }
 130
 131 static struct snd_soc_dai_link palm27x_dai[] = {
 132 {
 133         .name = "AC97 HiFi",
 134         .stream_name = "AC97 HiFi",
 135         .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
 136         .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
 137         .init = palm27x_ac97_init,
 138 },
 139 {
 140         .name = "AC97 Aux",
 141         .stream_name = "AC97 Aux",
 142         .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
 143         .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
 144 },
 145 };
 146
 147 static struct snd_soc_card palm27x_asoc = {
 148         .name = "Palm/PXA27x",
 149         .platform = &pxa2xx_soc_platform,
 150         .dai_link = palm27x_dai,
 151         .num_links = ARRAY_SIZE(palm27x_dai),
 152 };
 153
 154 static struct snd_soc_device palm27x_snd_devdata = {
 155         .card = &palm27x_asoc,
 156         .codec_dev = &soc_codec_dev_wm9712,
 157 };
 158
 159 static struct platform_device *palm27x_snd_device;
 160
 161 static int palm27x_asoc_probe(struct platform_device *pdev)
 162 {
 163         int ret;
 164
 165         if (!(machine_is_palmtx() || machine_is_palmt5() ||
 166                 machine_is_palmld() || machine_is_palmte2()))
 167                 return -ENODEV;
 168
 169         if (!pdev->dev.platform_data) {
 170                 dev_err(&pdev->dev, "please supply platform_data\n");
 171                 return -ENODEV;
 172         }
 173
 174         hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
 175                         (pdev->dev.platform_data))->jack_gpio;
 176
 177         palm27x_snd_device = platform_device_alloc("soc-audio", -1);
 178         if (!palm27x_snd_device)
 179                 return -ENOMEM;
 180
 181         platform_set_drvdata(palm27x_snd_device, &palm27x_snd_devdata);
 182         palm27x_snd_devdata.dev = &palm27x_snd_device->dev;
 183         ret = platform_device_add(palm27x_snd_device);
 184
 185         if (ret != 0)
 186                 goto put_device;
 187
 188         return 0;
 189
 190 put_device:
 191         platform_device_put(palm27x_snd_device);
 192
 193         return ret;
 194 }
 195
 196 static int __devexit palm27x_asoc_remove(struct platform_device *pdev)
 197 {
 198         platform_device_unregister(palm27x_snd_device);
 199         return 0;
 200 }
 201
 202 static struct platform_driver palm27x_wm9712_driver = {
 203         .probe          = palm27x_asoc_probe,
 204         .remove         = __devexit_p(palm27x_asoc_remove),
 205         .driver         = {
 206                 .name           = "palm27x-asoc",
 207                 .owner          = THIS_MODULE,
 208         },
 209 };
 210
 211 static int __init palm27x_asoc_init(void)
 212 {
 213         return platform_driver_register(&palm27x_wm9712_driver);
 214 }
 215
 216 static void __exit palm27x_asoc_exit(void)
 217 {
 218         platform_driver_unregister(&palm27x_wm9712_driver);
 219 }
 220
 221 module_init(palm27x_asoc_init);
 222 module_exit(palm27x_asoc_exit);
 223
 224 /* Module information */
 225 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 226 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
 227 MODULE_LICENSE("GPL");