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  *  Revision history
  16  *    30th Nov 2005   Initial version.
  17  *
  18  * GPIO's
  19  *  1 - Jack Insertion
  20  *  5 - Hookswitch (headset answer/hang up switch)
  21  *
  22  */
  23
  24 #include <linux/module.h>
  25 #include <linux/moduleparam.h>
  26 #include <linux/device.h>
  27
  28 #include <sound/core.h>
  29 #include <sound/pcm.h>
  30 #include <sound/soc.h>
  31 #include <sound/soc-dapm.h>
  32
  33 #include <asm/mach-types.h>
  34 #include <asm/hardware/tmio.h>
  35 #include <asm/arch/pxa-regs.h>
  36 #include <asm/arch/hardware.h>
  37 #include <asm/arch/audio.h>
  38 #include <asm/arch/tosa.h>
  39
  40 #include "../codecs/wm9712.h"
  41 #include "pxa2xx-pcm.h"
  42 #include "pxa2xx-ac97.h"
  43
  44 static struct snd_soc_machine tosa;
  45
  46 #define TOSA_HP        0
  47 #define TOSA_MIC_INT   1
  48 #define TOSA_HEADSET   2
  49 #define TOSA_HP_OFF    3
  50 #define TOSA_SPK_ON    0
  51 #define TOSA_SPK_OFF   1
  52
  53 static int tosa_jack_func;
  54 static int tosa_spk_func;
  55
  56 static void tosa_ext_control(struct snd_soc_codec *codec)
  57 {
  58         int spk = 0, mic_int = 0, hp = 0, hs = 0;
  59
  60         /* set up jack connection */
  61         switch (tosa_jack_func) {
  62         case TOSA_HP:
  63                 hp = 1;
  64                 break;
  65         case TOSA_MIC_INT:
  66                 mic_int = 1;
  67                 break;
  68         case TOSA_HEADSET:
  69                 hs = 1;
  70                 break;
  71         }
  72
  73         if (tosa_spk_func == TOSA_SPK_ON)
  74                 spk = 1;
  75
  76         snd_soc_dapm_set_endpoint(codec, "Speaker", spk);
  77         snd_soc_dapm_set_endpoint(codec, "Mic (Internal)", mic_int);
  78         snd_soc_dapm_set_endpoint(codec, "Headphone Jack", hp);
  79         snd_soc_dapm_set_endpoint(codec, "Headset Jack", hs);
  80         snd_soc_dapm_sync_endpoints(codec);
  81 }
  82
  83 static int tosa_startup(struct snd_pcm_substream *substream)
  84 {
  85         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  86         struct snd_soc_codec *codec = rtd->socdev->codec;
  87
  88         /* check the jack status at stream startup */
  89         tosa_ext_control(codec);
  90         return 0;
  91 }
  92
  93 static struct snd_soc_ops tosa_ops = {
  94         .startup = tosa_startup,
  95 };
  96
  97 static int tosa_get_jack(struct snd_kcontrol *kcontrol,
  98         struct snd_ctl_elem_value *ucontrol)
  99 {
 100         ucontrol->value.integer.value[0] = tosa_jack_func;
 101         return 0;
 102 }
 103
 104 static int tosa_set_jack(struct snd_kcontrol *kcontrol,
 105         struct snd_ctl_elem_value *ucontrol)
 106 {
 107         struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);
 108
 109         if (tosa_jack_func == ucontrol->value.integer.value[0])
 110                 return 0;
 111
 112         tosa_jack_func = ucontrol->value.integer.value[0];
 113         tosa_ext_control(codec);
 114         return 1;
 115 }
 116
 117 static int tosa_get_spk(struct snd_kcontrol *kcontrol,
 118         struct snd_ctl_elem_value *ucontrol)
 119 {
 120         ucontrol->value.integer.value[0] = tosa_spk_func;
 121         return 0;
 122 }
 123
 124 static int tosa_set_spk(struct snd_kcontrol *kcontrol,
 125         struct snd_ctl_elem_value *ucontrol)
 126 {
 127         struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);
 128
 129         if (tosa_spk_func == ucontrol->value.integer.value[0])
 130                 return 0;
 131
 132         tosa_spk_func = ucontrol->value.integer.value[0];
 133         tosa_ext_control(codec);
 134         return 1;
 135 }
 136
 137 /* tosa dapm event handlers */
 138 static int tosa_hp_event(struct snd_soc_dapm_widget *w,
 139         struct snd_kcontrol *k, int event)
 140 {
 141         if (SND_SOC_DAPM_EVENT_ON(event))
 142                 set_tc6393_gpio(&tc6393_device.dev,TOSA_TC6393_L_MUTE);
 143         else
 144                 reset_tc6393_gpio(&tc6393_device.dev,TOSA_TC6393_L_MUTE);
 145         return 0;
 146 }
 147
 148 /* tosa machine dapm widgets */
 149 static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
 150 SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
 151 SND_SOC_DAPM_HP("Headset Jack", NULL),
 152 SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
 153 SND_SOC_DAPM_SPK("Speaker", NULL),
 154 };
 155
 156 /* tosa audio map */
 157 static const char *audio_map[][3] = {
 158
 159         /* headphone connected to HPOUTL, HPOUTR */
 160         {"Headphone Jack", NULL, "HPOUTL"},
 161         {"Headphone Jack", NULL, "HPOUTR"},
 162
 163         /* ext speaker connected to LOUT2, ROUT2 */
 164         {"Speaker", NULL, "LOUT2"},
 165         {"Speaker", NULL, "ROUT2"},
 166
 167         /* internal mic is connected to mic1, mic2 differential - with bias */
 168         {"MIC1", NULL, "Mic Bias"},
 169         {"MIC2", NULL, "Mic Bias"},
 170         {"Mic Bias", NULL, "Mic (Internal)"},
 171
 172         /* headset is connected to HPOUTR, and LINEINR with bias */
 173         {"Headset Jack", NULL, "HPOUTR"},
 174         {"LINEINR", NULL, "Mic Bias"},
 175         {"Mic Bias", NULL, "Headset Jack"},
 176
 177         {NULL, NULL, NULL},
 178 };
 179
 180 static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
 181         "Off"};
 182 static const char *spk_function[] = {"On", "Off"};
 183 static const struct soc_enum tosa_enum[] = {
 184         SOC_ENUM_SINGLE_EXT(5, jack_function),
 185         SOC_ENUM_SINGLE_EXT(2, spk_function),
 186 };
 187
 188 static const struct snd_kcontrol_new tosa_controls[] = {
 189         SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
 190                 tosa_set_jack),
 191         SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
 192                 tosa_set_spk),
 193 };
 194
 195 static int tosa_ac97_init(struct snd_soc_codec *codec)
 196 {
 197         int i, err;
 198
 199         snd_soc_dapm_set_endpoint(codec, "OUT3", 0);
 200         snd_soc_dapm_set_endpoint(codec, "MONOOUT", 0);
 201
 202         /* add tosa specific controls */
 203         for (i = 0; i < ARRAY_SIZE(tosa_controls); i++) {
 204                 err = snd_ctl_add(codec->card,
 205                                 snd_soc_cnew(&tosa_controls[i],codec, NULL));
 206                 if (err < 0)
 207                         return err;
 208         }
 209
 210         /* add tosa specific widgets */
 211         for (i = 0; i < ARRAY_SIZE(tosa_dapm_widgets); i++) {
 212                 snd_soc_dapm_new_control(codec, &tosa_dapm_widgets[i]);
 213         }
 214
 215         /* set up tosa specific audio path audio_map */
 216         for (i = 0; audio_map[i][0] != NULL; i++) {
 217                 snd_soc_dapm_connect_input(codec, audio_map[i][0],
 218                         audio_map[i][1], audio_map[i][2]);
 219         }
 220
 221         snd_soc_dapm_sync_endpoints(codec);
 222         return 0;
 223 }
 224
 225 static struct snd_soc_dai_link tosa_dai[] = {
 226 {
 227         .name = "AC97",
 228         .stream_name = "AC97 HiFi",
 229         .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
 230         .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
 231         .init = tosa_ac97_init,
 232         .ops = &tosa_ops,
 233 },
 234 {
 235         .name = "AC97 Aux",
 236         .stream_name = "AC97 Aux",
 237         .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
 238         .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
 239         .ops = &tosa_ops,
 240 },
 241 };
 242
 243 static struct snd_soc_machine tosa = {
 244         .name = "Tosa",
 245         .dai_link = tosa_dai,
 246         .num_links = ARRAY_SIZE(tosa_dai),
 247 };
 248
 249 static struct snd_soc_device tosa_snd_devdata = {
 250         .machine = &tosa,
 251         .platform = &pxa2xx_soc_platform,
 252         .codec_dev = &soc_codec_dev_wm9712,
 253 };
 254
 255 static struct platform_device *tosa_snd_device;
 256
 257 static int __init tosa_init(void)
 258 {
 259         int ret;
 260
 261         if (!machine_is_tosa())
 262                 return -ENODEV;
 263
 264         tosa_snd_device = platform_device_alloc("soc-audio", -1);
 265         if (!tosa_snd_device)
 266                 return -ENOMEM;
 267
 268         platform_set_drvdata(tosa_snd_device, &tosa_snd_devdata);
 269         tosa_snd_devdata.dev = &tosa_snd_device->dev;
 270         ret = platform_device_add(tosa_snd_device);
 271
 272         if (ret)
 273                 platform_device_put(tosa_snd_device);
 274
 275         return ret;
 276 }
 277
 278 static void __exit tosa_exit(void)
 279 {
 280         platform_device_unregister(tosa_snd_device);
 281 }
 282
 283 module_init(tosa_init);
 284 module_exit(tosa_exit);
 285
 286 /* Module information */
 287 MODULE_AUTHOR("Richard Purdie");
 288 MODULE_DESCRIPTION("ALSA SoC Tosa");
 289 MODULE_LICENSE("GPL");