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-ac97.h"
  33
  34 static struct snd_soc_jack hs_jack;
  35
  36 /* Headphones jack detection DAPM pins */
  37 static struct snd_soc_jack_pin hs_jack_pins[] = {
  38         {
  39                 .pin    = "Headphone Jack",
  40                 .mask   = SND_JACK_HEADPHONE,
  41         },
  42 };
  43
  44 /* Headphones jack detection gpios */
  45 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
  46         [0] = {
  47                 /* gpio is set on per-platform basis */
  48                 .name           = "hp-gpio",
  49                 .report         = SND_JACK_HEADPHONE,
  50                 .debounce_time  = 200,
  51         },
  52 };
  53
  54 /* Palm27x machine dapm widgets */
  55 static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
  56         SND_SOC_DAPM_HP("Headphone Jack", NULL),
  57         SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
  58         SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
  59 };
  60
  61 /* PalmTX audio map */
  62 static const struct snd_soc_dapm_route audio_map[] = {
  63         /* headphone connected to HPOUTL, HPOUTR */
  64         {"Headphone Jack", NULL, "HPOUTL"},
  65         {"Headphone Jack", NULL, "HPOUTR"},
  66
  67         /* ext speaker connected to ROUT2, LOUT2 */
  68         {"Ext. Speaker", NULL, "LOUT2"},
  69         {"Ext. Speaker", NULL, "ROUT2"},
  70
  71         /* mic connected to MIC1 */
  72         {"Ext. Microphone", NULL, "MIC1"},
  73 };
  74
  75 static struct snd_soc_card palm27x_asoc;
  76
  77 static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
  78 {
  79         struct snd_soc_codec *codec = rtd->codec;
  80         struct snd_soc_dapm_context *dapm = &codec->dapm;
  81         int err;
  82
  83         /* add palm27x specific widgets */
  84         err = snd_soc_dapm_new_controls(dapm, palm27x_dapm_widgets,
  85                                 ARRAY_SIZE(palm27x_dapm_widgets));
  86         if (err)
  87                 return err;
  88
  89         /* set up palm27x specific audio path audio_map */
  90         err = snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
  91         if (err)
  92                 return err;
  93
  94         /* connected pins */
  95         if (machine_is_palmld())
  96                 snd_soc_dapm_enable_pin(dapm, "MIC1");
  97         snd_soc_dapm_enable_pin(dapm, "HPOUTL");
  98         snd_soc_dapm_enable_pin(dapm, "HPOUTR");
  99         snd_soc_dapm_enable_pin(dapm, "LOUT2");
 100         snd_soc_dapm_enable_pin(dapm, "ROUT2");
 101
 102         /* not connected pins */
 103         snd_soc_dapm_nc_pin(dapm, "OUT3");
 104         snd_soc_dapm_nc_pin(dapm, "MONOOUT");
 105         snd_soc_dapm_nc_pin(dapm, "LINEINL");
 106         snd_soc_dapm_nc_pin(dapm, "LINEINR");
 107         snd_soc_dapm_nc_pin(dapm, "PCBEEP");
 108         snd_soc_dapm_nc_pin(dapm, "PHONE");
 109         snd_soc_dapm_nc_pin(dapm, "MIC2");
 110
 111         err = snd_soc_dapm_sync(dapm);
 112         if (err)
 113                 return err;
 114
 115         /* Jack detection API stuff */
 116         err = snd_soc_jack_new(codec, "Headphone Jack",
 117                                 SND_JACK_HEADPHONE, &hs_jack);
 118         if (err)
 119                 return err;
 120
 121         err = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
 122                                 hs_jack_pins);
 123         if (err)
 124                 return err;
 125
 126         err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
 127                                 hs_jack_gpios);
 128
 129         return err;
 130 }
 131
 132 static struct snd_soc_dai_link palm27x_dai[] = {
 133 {
 134         .name = "AC97 HiFi",
 135         .stream_name = "AC97 HiFi",
 136         .cpu_dai_name = "pxa-ac97.0",
 137         .codec_dai_name =  "wm9712-hifi",
 138         .codec_name = "wm9712-codec",
 139         .platform_name = "pxa-pcm-audio",
 140         .init = palm27x_ac97_init,
 141 },
 142 {
 143         .name = "AC97 Aux",
 144         .stream_name = "AC97 Aux",
 145         .cpu_dai_name = "pxa-ac97.1",
 146         .codec_dai_name = "wm9712-aux",
 147         .codec_name = "wm9712-codec",
 148         .platform_name = "pxa-pcm-audio",
 149 },
 150 };
 151
 152 static struct snd_soc_card palm27x_asoc = {
 153         .name = "Palm/PXA27x",
 154         .dai_link = palm27x_dai,
 155         .num_links = ARRAY_SIZE(palm27x_dai),
 156 };
 157
 158 static struct platform_device *palm27x_snd_device;
 159
 160 static int palm27x_asoc_probe(struct platform_device *pdev)
 161 {
 162         int ret;
 163
 164         if (!(machine_is_palmtx() || machine_is_palmt5() ||
 165                 machine_is_palmld() || machine_is_palmte2()))
 166                 return -ENODEV;
 167
 168         if (!pdev->dev.platform_data) {
 169                 dev_err(&pdev->dev, "please supply platform_data\n");
 170                 return -ENODEV;
 171         }
 172
 173         hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
 174                         (pdev->dev.platform_data))->jack_gpio;
 175
 176         palm27x_snd_device = platform_device_alloc("soc-audio", -1);
 177         if (!palm27x_snd_device)
 178                 return -ENOMEM;
 179
 180         platform_set_drvdata(palm27x_snd_device, &palm27x_asoc);
 181         ret = platform_device_add(palm27x_snd_device);
 182
 183         if (ret != 0)
 184                 goto put_device;
 185
 186         return 0;
 187
 188 put_device:
 189         platform_device_put(palm27x_snd_device);
 190
 191         return ret;
 192 }
 193
 194 static int __devexit palm27x_asoc_remove(struct platform_device *pdev)
 195 {
 196         platform_device_unregister(palm27x_snd_device);
 197         return 0;
 198 }
 199
 200 static struct platform_driver palm27x_wm9712_driver = {
 201         .probe          = palm27x_asoc_probe,
 202         .remove         = __devexit_p(palm27x_asoc_remove),
 203         .driver         = {
 204                 .name           = "palm27x-asoc",
 205                 .owner          = THIS_MODULE,
 206         },
 207 };
 208
 209 static int __init palm27x_asoc_init(void)
 210 {
 211         return platform_driver_register(&palm27x_wm9712_driver);
 212 }
 213
 214 static void __exit palm27x_asoc_exit(void)
 215 {
 216         platform_driver_unregister(&palm27x_wm9712_driver);
 217 }
 218
 219 module_init(palm27x_asoc_init);
 220 module_exit(palm27x_asoc_exit);
 221
 222 /* Module information */
 223 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 224 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
 225 MODULE_LICENSE("GPL");