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/jack.h>
  25
  26 #include <asm/mach-types.h>
  27 #include <mach/audio.h>
  28 #include <mach/palmasoc.h>
  29
  30 #include "../codecs/wm9712.h"
  31 #include "pxa2xx-ac97.h"
  32
  33 static struct snd_soc_jack hs_jack;
  34
  35 /* Headphones jack detection DAPM pins */
  36 static struct snd_soc_jack_pin hs_jack_pins[] = {
  37         {
  38                 .pin    = "Headphone Jack",
  39                 .mask   = SND_JACK_HEADPHONE,
  40         },
  41 };
  42
  43 /* Headphones jack detection gpios */
  44 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
  45         [0] = {
  46                 /* gpio is set on per-platform basis */
  47                 .name           = "hp-gpio",
  48                 .report         = SND_JACK_HEADPHONE,
  49                 .debounce_time  = 200,
  50         },
  51 };
  52
  53 /* Palm27x machine dapm widgets */
  54 static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
  55         SND_SOC_DAPM_HP("Headphone Jack", NULL),
  56         SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
  57         SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
  58 };
  59
  60 /* PalmTX audio map */
  61 static const struct snd_soc_dapm_route audio_map[] = {
  62         /* headphone connected to HPOUTL, HPOUTR */
  63         {"Headphone Jack", NULL, "HPOUTL"},
  64         {"Headphone Jack", NULL, "HPOUTR"},
  65
  66         /* ext speaker connected to ROUT2, LOUT2 */
  67         {"Ext. Speaker", NULL, "LOUT2"},
  68         {"Ext. Speaker", NULL, "ROUT2"},
  69
  70         /* mic connected to MIC1 */
  71         {"Ext. Microphone", NULL, "MIC1"},
  72 };
  73
  74 static struct snd_soc_card palm27x_asoc;
  75
  76 static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
  77 {
  78         struct snd_soc_codec *codec = rtd->codec;
  79         struct snd_soc_dapm_context *dapm = &codec->dapm;
  80         int err;
  81
  82         /* add palm27x specific widgets */
  83         err = snd_soc_dapm_new_controls(dapm, 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(dapm, 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(dapm, "MIC1");
  96         snd_soc_dapm_enable_pin(dapm, "HPOUTL");
  97         snd_soc_dapm_enable_pin(dapm, "HPOUTR");
  98         snd_soc_dapm_enable_pin(dapm, "LOUT2");
  99         snd_soc_dapm_enable_pin(dapm, "ROUT2");
 100
 101         /* not connected pins */
 102         snd_soc_dapm_nc_pin(dapm, "OUT3");
 103         snd_soc_dapm_nc_pin(dapm, "MONOOUT");
 104         snd_soc_dapm_nc_pin(dapm, "LINEINL");
 105         snd_soc_dapm_nc_pin(dapm, "LINEINR");
 106         snd_soc_dapm_nc_pin(dapm, "PCBEEP");
 107         snd_soc_dapm_nc_pin(dapm, "PHONE");
 108         snd_soc_dapm_nc_pin(dapm, "MIC2");
 109
 110         err = snd_soc_dapm_sync(dapm);
 111         if (err)
 112                 return err;
 113
 114         /* Jack detection API stuff */
 115         err = snd_soc_jack_new(codec, "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_name = "pxa-ac97.0",
 136         .codec_dai_name =  "wm9712-hifi",
 137         .codec_name = "wm9712-codec",
 138         .platform_name = "pxa-pcm-audio",
 139         .init = palm27x_ac97_init,
 140 },
 141 {
 142         .name = "AC97 Aux",
 143         .stream_name = "AC97 Aux",
 144         .cpu_dai_name = "pxa-ac97.1",
 145         .codec_dai_name = "wm9712-aux",
 146         .codec_name = "wm9712-codec",
 147         .platform_name = "pxa-pcm-audio",
 148 },
 149 };
 150
 151 static struct snd_soc_card palm27x_asoc = {
 152         .name = "Palm/PXA27x",
 153         .dai_link = palm27x_dai,
 154         .num_links = ARRAY_SIZE(palm27x_dai),
 155 };
 156
 157 static struct platform_device *palm27x_snd_device;
 158
 159 static int palm27x_asoc_probe(struct platform_device *pdev)
 160 {
 161         int ret;
 162
 163         if (!(machine_is_palmtx() || machine_is_palmt5() ||
 164                 machine_is_palmld() || machine_is_palmte2()))
 165                 return -ENODEV;
 166
 167         if (!pdev->dev.platform_data) {
 168                 dev_err(&pdev->dev, "please supply platform_data\n");
 169                 return -ENODEV;
 170         }
 171
 172         hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
 173                         (pdev->dev.platform_data))->jack_gpio;
 174
 175         palm27x_snd_device = platform_device_alloc("soc-audio", -1);
 176         if (!palm27x_snd_device)
 177                 return -ENOMEM;
 178
 179         platform_set_drvdata(palm27x_snd_device, &palm27x_asoc);
 180         ret = platform_device_add(palm27x_snd_device);
 181
 182         if (ret != 0)
 183                 goto put_device;
 184
 185         return 0;
 186
 187 put_device:
 188         platform_device_put(palm27x_snd_device);
 189
 190         return ret;
 191 }
 192
 193 static int __devexit palm27x_asoc_remove(struct platform_device *pdev)
 194 {
 195         platform_device_unregister(palm27x_snd_device);
 196         return 0;
 197 }
 198
 199 static struct platform_driver palm27x_wm9712_driver = {
 200         .probe          = palm27x_asoc_probe,
 201         .remove         = __devexit_p(palm27x_asoc_remove),
 202         .driver         = {
 203                 .name           = "palm27x-asoc",
 204                 .owner          = THIS_MODULE,
 205         },
 206 };
 207
 208 static int __init palm27x_asoc_init(void)
 209 {
 210         return platform_driver_register(&palm27x_wm9712_driver);
 211 }
 212
 213 static void __exit palm27x_asoc_exit(void)
 214 {
 215         platform_driver_unregister(&palm27x_wm9712_driver);
 216 }
 217
 218 module_init(palm27x_asoc_init);
 219 module_exit(palm27x_asoc_exit);
 220
 221 /* Module information */
 222 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 223 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
 224 MODULE_LICENSE("GPL");