sound/soc/pxa/tosa.c

   1 /*
   2  * tosa.c  --  SoC audio for Tosa
   3  *
   4  * Copyright 2005 Wolfson Microelectronics PLC.
   5  * Copyright 2005 Openedhand Ltd.
   6  *
   7  * Authors: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
   8  *          Richard Purdie <richard@openedhand.com>
   9  *
  10  *  This program is free software; you can redistribute  it and/or modify it
  11  *  under  the terms of  the GNU General  Public License as published by the
  12  *  Free Software Foundation;  either version 2 of the  License, or (at your
  13  *  option) any later version.
  14  *
  15  * GPIO's
  16  *  1 - Jack Insertion
  17  *  5 - Hookswitch (headset answer/hang up switch)
  18  *
  19  */
  20
  21 #include <linux/module.h>
  22 #include <linux/moduleparam.h>
  23 #include <linux/device.h>
  24
  25 #include <sound/core.h>
  26 #include <sound/pcm.h>
  27 #include <sound/soc.h>
  28 #include <sound/soc-dapm.h>
  29
  30 #include <asm/mach-types.h>
  31 #include <asm/hardware/tmio.h>
  32 #include <asm/arch/pxa-regs.h>
  33 #include <asm/arch/hardware.h>
  34 #include <asm/arch/audio.h>
  35 #include <asm/arch/tosa.h>
  36
  37 #include "../codecs/wm9712.h"
  38 #include "pxa2xx-pcm.h"
  39 #include "pxa2xx-ac97.h"
  40
  41 static struct snd_soc_machine tosa;
  42
  43 #define TOSA_HP        0
  44 #define TOSA_MIC_INT   1
  45 #define TOSA_HEADSET   2
  46 #define TOSA_HP_OFF    3
  47 #define TOSA_SPK_ON    0
  48 #define TOSA_SPK_OFF   1
  49
  50 static int tosa_jack_func;
  51 static int tosa_spk_func;
  52
  53 static void tosa_ext_control(struct snd_soc_codec *codec)
  54 {
  55         /* set up jack connection */
  56         switch (tosa_jack_func) {
  57         case TOSA_HP:
  58                 snd_soc_dapm_disable_pin(codec, "Mic (Internal)");
  59                 snd_soc_dapm_enable_pin(codec, "Headphone Jack");
  60                 snd_soc_dapm_disable_pin(codec, "Headset Jack");
  61                 break;
  62         case TOSA_MIC_INT:
  63                 snd_soc_dapm_enable_pin(codec, "Mic (Internal)");
  64                 snd_soc_dapm_disable_pin(codec, "Headphone Jack");
  65                 snd_soc_dapm_disable_pin(codec, "Headset Jack");
  66                 break;
  67         case TOSA_HEADSET:
  68                 snd_soc_dapm_disable_pin(codec, "Mic (Internal)");
  69                 snd_soc_dapm_disable_pin(codec, "Headphone Jack");
  70                 snd_soc_dapm_enable_pin(codec, "Headset Jack");
  71                 break;
  72         }
  73
  74         if (tosa_spk_func == TOSA_SPK_ON)
  75                 snd_soc_dapm_enable_pin(codec, "Speaker");
  76         else
  77                 snd_soc_dapm_disable_pin(codec, "Speaker");
  78
  79         snd_soc_dapm_sync(codec);
  80 }
  81
  82 static int tosa_startup(struct snd_pcm_substream *substream)
  83 {
  84         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  85         struct snd_soc_codec *codec = rtd->socdev->codec;
  86
  87         /* check the jack status at stream startup */
  88         tosa_ext_control(codec);
  89         return 0;
  90 }
  91
  92 static struct snd_soc_ops tosa_ops = {
  93         .startup = tosa_startup,
  94 };
  95
  96 static int tosa_get_jack(struct snd_kcontrol *kcontrol,
  97         struct snd_ctl_elem_value *ucontrol)
  98 {
  99         ucontrol->value.integer.value[0] = tosa_jack_func;
 100         return 0;
 101 }
 102
 103 static int tosa_set_jack(struct snd_kcontrol *kcontrol,
 104         struct snd_ctl_elem_value *ucontrol)
 105 {
 106         struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);
 107
 108         if (tosa_jack_func == ucontrol->value.integer.value[0])
 109                 return 0;
 110
 111         tosa_jack_func = ucontrol->value.integer.value[0];
 112         tosa_ext_control(codec);
 113         return 1;
 114 }
 115
 116 static int tosa_get_spk(struct snd_kcontrol *kcontrol,
 117         struct snd_ctl_elem_value *ucontrol)
 118 {
 119         ucontrol->value.integer.value[0] = tosa_spk_func;
 120         return 0;
 121 }
 122
 123 static int tosa_set_spk(struct snd_kcontrol *kcontrol,
 124         struct snd_ctl_elem_value *ucontrol)
 125 {
 126         struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);
 127
 128         if (tosa_spk_func == ucontrol->value.integer.value[0])
 129                 return 0;
 130
 131         tosa_spk_func = ucontrol->value.integer.value[0];
 132         tosa_ext_control(codec);
 133         return 1;
 134 }
 135
 136 /* tosa dapm event handlers */
 137 static int tosa_hp_event(struct snd_soc_dapm_widget *w,
 138         struct snd_kcontrol *k, int event)
 139 {
 140         if (SND_SOC_DAPM_EVENT_ON(event))
 141                 set_tc6393_gpio(&tc6393_device.dev,TOSA_TC6393_L_MUTE);
 142         else
 143                 reset_tc6393_gpio(&tc6393_device.dev,TOSA_TC6393_L_MUTE);
 144         return 0;
 145 }
 146
 147 /* tosa machine dapm widgets */
 148 static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
 149 SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
 150 SND_SOC_DAPM_HP("Headset Jack", NULL),
 151 SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
 152 SND_SOC_DAPM_SPK("Speaker", NULL),
 153 };
 154
 155 /* tosa audio map */
 156 static const struct snd_soc_dapm_route audio_map[] = {
 157
 158         /* headphone connected to HPOUTL, HPOUTR */
 159         {"Headphone Jack", NULL, "HPOUTL"},
 160         {"Headphone Jack", NULL, "HPOUTR"},
 161
 162         /* ext speaker connected to LOUT2, ROUT2 */
 163         {"Speaker", NULL, "LOUT2"},
 164         {"Speaker", NULL, "ROUT2"},
 165
 166         /* internal mic is connected to mic1, mic2 differential - with bias */
 167         {"MIC1", NULL, "Mic Bias"},
 168         {"MIC2", NULL, "Mic Bias"},
 169         {"Mic Bias", NULL, "Mic (Internal)"},
 170
 171         /* headset is connected to HPOUTR, and LINEINR with bias */
 172         {"Headset Jack", NULL, "HPOUTR"},
 173         {"LINEINR", NULL, "Mic Bias"},
 174         {"Mic Bias", NULL, "Headset Jack"},
 175 };
 176
 177 static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
 178         "Off"};
 179 static const char *spk_function[] = {"On", "Off"};
 180 static const struct soc_enum tosa_enum[] = {
 181         SOC_ENUM_SINGLE_EXT(5, jack_function),
 182         SOC_ENUM_SINGLE_EXT(2, spk_function),
 183 };
 184
 185 static const struct snd_kcontrol_new tosa_controls[] = {
 186         SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
 187                 tosa_set_jack),
 188         SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
 189                 tosa_set_spk),
 190 };
 191
 192 static int tosa_ac97_init(struct snd_soc_codec *codec)
 193 {
 194         int i, err;
 195
 196         snd_soc_dapm_disable_pin(codec, "OUT3");
 197         snd_soc_dapm_disable_pin(codec, "MONOOUT");
 198
 199         /* add tosa specific controls */
 200         for (i = 0; i < ARRAY_SIZE(tosa_controls); i++) {
 201                 err = snd_ctl_add(codec->card,
 202                                 snd_soc_cnew(&tosa_controls[i],codec, NULL));
 203                 if (err < 0)
 204                         return err;
 205         }
 206
 207         /* add tosa specific widgets */
 208         snd_soc_dapm_new_controls(codec, tosa_dapm_widgets,
 209                                   ARRAY_SIZE(tosa_dapm_widgets));
 210
 211         /* set up tosa specific audio path audio_map */
 212         snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
 213
 214         snd_soc_dapm_sync(codec);
 215         return 0;
 216 }
 217
 218 static struct snd_soc_dai_link tosa_dai[] = {
 219 {
 220         .name = "AC97",
 221         .stream_name = "AC97 HiFi",
 222         .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
 223         .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
 224         .init = tosa_ac97_init,
 225         .ops = &tosa_ops,
 226 },
 227 {
 228         .name = "AC97 Aux",
 229         .stream_name = "AC97 Aux",
 230         .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
 231         .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
 232         .ops = &tosa_ops,
 233 },
 234 };
 235
 236 static struct snd_soc_machine tosa = {
 237         .name = "Tosa",
 238         .dai_link = tosa_dai,
 239         .num_links = ARRAY_SIZE(tosa_dai),
 240 };
 241
 242 static struct snd_soc_device tosa_snd_devdata = {
 243         .machine = &tosa,
 244         .platform = &pxa2xx_soc_platform,
 245         .codec_dev = &soc_codec_dev_wm9712,
 246 };
 247
 248 static struct platform_device *tosa_snd_device;
 249
 250 static int __init tosa_init(void)
 251 {
 252         int ret;
 253
 254         if (!machine_is_tosa())
 255                 return -ENODEV;
 256
 257         tosa_snd_device = platform_device_alloc("soc-audio", -1);
 258         if (!tosa_snd_device)
 259                 return -ENOMEM;
 260
 261         platform_set_drvdata(tosa_snd_device, &tosa_snd_devdata);
 262         tosa_snd_devdata.dev = &tosa_snd_device->dev;
 263         ret = platform_device_add(tosa_snd_device);
 264
 265         if (ret)
 266                 platform_device_put(tosa_snd_device);
 267
 268         return ret;
 269 }
 270
 271 static void __exit tosa_exit(void)
 272 {
 273         platform_device_unregister(tosa_snd_device);
 274 }
 275
 276 module_init(tosa_init);
 277 module_exit(tosa_exit);
 278
 279 /* Module information */
 280 MODULE_AUTHOR("Richard Purdie");
 281 MODULE_DESCRIPTION("ALSA SoC Tosa");
 282 MODULE_LICENSE("GPL");