sound/soc/pxa/spitz.c

   1 /*
   2  * spitz.c  --  SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita
   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  */
  19
  20 #include <linux/module.h>
  21 #include <linux/moduleparam.h>
  22 #include <linux/timer.h>
  23 #include <linux/interrupt.h>
  24 #include <linux/platform_device.h>
  25 #include <sound/driver.h>
  26 #include <sound/core.h>
  27 #include <sound/pcm.h>
  28 #include <sound/soc.h>
  29 #include <sound/soc-dapm.h>
  30
  31 #include <asm/mach-types.h>
  32 #include <asm/hardware/scoop.h>
  33 #include <asm/arch/pxa-regs.h>
  34 #include <asm/arch/hardware.h>
  35 #include <asm/arch/akita.h>
  36 #include <asm/arch/spitz.h>
  37 #include "../codecs/wm8750.h"
  38 #include "pxa2xx-pcm.h"
  39 #include "pxa2xx-i2s.h"
  40
  41 #define SPITZ_HP        0
  42 #define SPITZ_MIC       1
  43 #define SPITZ_LINE      2
  44 #define SPITZ_HEADSET   3
  45 #define SPITZ_HP_OFF    4
  46 #define SPITZ_SPK_ON    0
  47 #define SPITZ_SPK_OFF   1
  48
  49  /* audio clock in Hz - rounded from 12.235MHz */
  50 #define SPITZ_AUDIO_CLOCK 12288000
  51
  52 static int spitz_jack_func;
  53 static int spitz_spk_func;
  54
  55 static void spitz_ext_control(struct snd_soc_codec *codec)
  56 {
  57         if (spitz_spk_func == SPITZ_SPK_ON)
  58                 snd_soc_dapm_set_endpoint(codec, "Ext Spk", 1);
  59         else
  60                 snd_soc_dapm_set_endpoint(codec, "Ext Spk", 0);
  61
  62         /* set up jack connection */
  63         switch (spitz_jack_func) {
  64         case SPITZ_HP:
  65                 /* enable and unmute hp jack, disable mic bias */
  66                 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
  67                 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0);
  68                 snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
  69                 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 1);
  70                 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
  71                 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
  72                 break;
  73         case SPITZ_MIC:
  74                 /* enable mic jack and bias, mute hp */
  75                 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
  76                 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
  77                 snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
  78                 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 1);
  79                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
  80                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
  81                 break;
  82         case SPITZ_LINE:
  83                 /* enable line jack, disable mic bias and mute hp */
  84                 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
  85                 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
  86                 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0);
  87                 snd_soc_dapm_set_endpoint(codec, "Line Jack", 1);
  88                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
  89                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
  90                 break;
  91         case SPITZ_HEADSET:
  92                 /* enable and unmute headset jack enable mic bias, mute L hp */
  93                 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
  94                 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 1);
  95                 snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
  96                 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 1);
  97                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
  98                 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
  99                 break;
 100         case SPITZ_HP_OFF:
 101
 102                 /* jack removed, everything off */
 103                 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
 104                 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
 105                 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0);
 106                 snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
 107                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
 108                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
 109                 break;
 110         }
 111         snd_soc_dapm_sync_endpoints(codec);
 112 }
 113
 114 static int spitz_startup(struct snd_pcm_substream *substream)
 115 {
 116         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 117         struct snd_soc_codec *codec = rtd->socdev->codec;
 118
 119         /* check the jack status at stream startup */
 120         spitz_ext_control(codec);
 121         return 0;
 122 }
 123
 124 static int spitz_hw_params(struct snd_pcm_substream *substream,
 125         struct snd_pcm_hw_params *params)
 126 {
 127         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 128         struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai;
 129         struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
 130         unsigned int clk = 0;
 131         int ret = 0;
 132
 133         switch (params_rate(params)) {
 134         case 8000:
 135         case 16000:
 136         case 48000:
 137         case 96000:
 138                 clk = 12288000;
 139                 break;
 140         case 11025:
 141         case 22050:
 142         case 44100:
 143                 clk = 11289600;
 144                 break;
 145         }
 146
 147         /* set codec DAI configuration */
 148         ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
 149                 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
 150         if (ret < 0)
 151                 return ret;
 152
 153         /* set cpu DAI configuration */
 154         ret = cpu_dai->dai_ops.set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
 155                 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
 156         if (ret < 0)
 157                 return ret;
 158
 159         /* set the codec system clock for DAC and ADC */
 160         ret = codec_dai->dai_ops.set_sysclk(codec_dai, WM8750_SYSCLK, clk,
 161                 SND_SOC_CLOCK_IN);
 162         if (ret < 0)
 163                 return ret;
 164
 165         /* set the I2S system clock as input (unused) */
 166         ret = cpu_dai->dai_ops.set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
 167                 SND_SOC_CLOCK_IN);
 168         if (ret < 0)
 169                 return ret;
 170
 171         return 0;
 172 }
 173
 174 static struct snd_soc_ops spitz_ops = {
 175         .startup = spitz_startup,
 176         .hw_params = spitz_hw_params,
 177 };
 178
 179 static int spitz_get_jack(struct snd_kcontrol *kcontrol,
 180         struct snd_ctl_elem_value *ucontrol)
 181 {
 182         ucontrol->value.integer.value[0] = spitz_jack_func;
 183         return 0;
 184 }
 185
 186 static int spitz_set_jack(struct snd_kcontrol *kcontrol,
 187         struct snd_ctl_elem_value *ucontrol)
 188 {
 189         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 190
 191         if (spitz_jack_func == ucontrol->value.integer.value[0])
 192                 return 0;
 193
 194         spitz_jack_func = ucontrol->value.integer.value[0];
 195         spitz_ext_control(codec);
 196         return 1;
 197 }
 198
 199 static int spitz_get_spk(struct snd_kcontrol *kcontrol,
 200         struct snd_ctl_elem_value *ucontrol)
 201 {
 202         ucontrol->value.integer.value[0] = spitz_spk_func;
 203         return 0;
 204 }
 205
 206 static int spitz_set_spk(struct snd_kcontrol *kcontrol,
 207         struct snd_ctl_elem_value *ucontrol)
 208 {
 209         struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);
 210
 211         if (spitz_spk_func == ucontrol->value.integer.value[0])
 212                 return 0;
 213
 214         spitz_spk_func = ucontrol->value.integer.value[0];
 215         spitz_ext_control(codec);
 216         return 1;
 217 }
 218
 219 static int spitz_mic_bias(struct snd_soc_dapm_widget *w, int event)
 220 {
 221         if (machine_is_borzoi() || machine_is_spitz()) {
 222                 if (SND_SOC_DAPM_EVENT_ON(event))
 223                         set_scoop_gpio(&spitzscoop2_device.dev,
 224                                 SPITZ_SCP2_MIC_BIAS);
 225                 else
 226                         reset_scoop_gpio(&spitzscoop2_device.dev,
 227                                 SPITZ_SCP2_MIC_BIAS);
 228         }
 229
 230         if (machine_is_akita()) {
 231                 if (SND_SOC_DAPM_EVENT_ON(event))
 232                         akita_set_ioexp(&akitaioexp_device.dev,
 233                                 AKITA_IOEXP_MIC_BIAS);
 234                 else
 235                         akita_reset_ioexp(&akitaioexp_device.dev,
 236                                 AKITA_IOEXP_MIC_BIAS);
 237         }
 238         return 0;
 239 }
 240
 241 /* spitz machine dapm widgets */
 242 static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
 243         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 244         SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
 245         SND_SOC_DAPM_SPK("Ext Spk", NULL),
 246         SND_SOC_DAPM_LINE("Line Jack", NULL),
 247
 248         /* headset is a mic and mono headphone */
 249         SND_SOC_DAPM_HP("Headset Jack", NULL),
 250 };
 251
 252 /* Spitz machine audio_map */
 253 static const char *audio_map[][3] = {
 254
 255         /* headphone connected to LOUT1, ROUT1 */
 256         {"Headphone Jack", NULL, "LOUT1"},
 257         {"Headphone Jack", NULL, "ROUT1"},
 258
 259         /* headset connected to ROUT1 and LINPUT1 with bias (def below) */
 260         {"Headset Jack", NULL, "ROUT1"},
 261
 262         /* ext speaker connected to LOUT2, ROUT2  */
 263         {"Ext Spk", NULL , "ROUT2"},
 264         {"Ext Spk", NULL , "LOUT2"},
 265
 266         /* mic is connected to input 1 - with bias */
 267         {"LINPUT1", NULL, "Mic Bias"},
 268         {"Mic Bias", NULL, "Mic Jack"},
 269
 270         /* line is connected to input 1 - no bias */
 271         {"LINPUT1", NULL, "Line Jack"},
 272
 273         {NULL, NULL, NULL},
 274 };
 275
 276 static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
 277         "Off"};
 278 static const char *spk_function[] = {"On", "Off"};
 279 static const struct soc_enum spitz_enum[] = {
 280         SOC_ENUM_SINGLE_EXT(5, jack_function),
 281         SOC_ENUM_SINGLE_EXT(2, spk_function),
 282 };
 283
 284 static const struct snd_kcontrol_new wm8750_spitz_controls[] = {
 285         SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
 286                 spitz_set_jack),
 287         SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
 288                 spitz_set_spk),
 289 };
 290
 291 /*
 292  * Logic for a wm8750 as connected on a Sharp SL-Cxx00 Device
 293  */
 294 static int spitz_wm8750_init(struct snd_soc_codec *codec)
 295 {
 296         int i, err;
 297
 298         /* NC codec pins */
 299         snd_soc_dapm_set_endpoint(codec, "RINPUT1", 0);
 300         snd_soc_dapm_set_endpoint(codec, "LINPUT2", 0);
 301         snd_soc_dapm_set_endpoint(codec, "RINPUT2", 0);
 302         snd_soc_dapm_set_endpoint(codec, "LINPUT3", 0);
 303         snd_soc_dapm_set_endpoint(codec, "RINPUT3", 0);
 304         snd_soc_dapm_set_endpoint(codec, "OUT3", 0);
 305         snd_soc_dapm_set_endpoint(codec, "MONO", 0);
 306
 307         /* Add spitz specific controls */
 308         for (i = 0; i < ARRAY_SIZE(wm8750_spitz_controls); i++) {
 309                 err = snd_ctl_add(codec->card,
 310                         snd_soc_cnew(&wm8750_spitz_controls[i], codec, NULL));
 311                 if (err < 0)
 312                         return err;
 313         }
 314
 315         /* Add spitz specific widgets */
 316         for (i = 0; i < ARRAY_SIZE(wm8750_dapm_widgets); i++) {
 317                 snd_soc_dapm_new_control(codec, &wm8750_dapm_widgets[i]);
 318         }
 319
 320         /* Set up spitz specific audio path audio_map */
 321         for (i = 0; audio_map[i][0] != NULL; i++) {
 322                 snd_soc_dapm_connect_input(codec, audio_map[i][0],
 323                         audio_map[i][1], audio_map[i][2]);
 324         }
 325
 326         snd_soc_dapm_sync_endpoints(codec);
 327         return 0;
 328 }
 329
 330 /* spitz digital audio interface glue - connects codec <--> CPU */
 331 static struct snd_soc_dai_link spitz_dai = {
 332         .name = "wm8750",
 333         .stream_name = "WM8750",
 334         .cpu_dai = &pxa_i2s_dai,
 335         .codec_dai = &wm8750_dai,
 336         .init = spitz_wm8750_init,
 337         .ops = &spitz_ops,
 338 };
 339
 340 /* spitz audio machine driver */
 341 static struct snd_soc_machine snd_soc_machine_spitz = {
 342         .name = "Spitz",
 343         .dai_link = &spitz_dai,
 344         .num_links = 1,
 345 };
 346
 347 /* spitz audio private data */
 348 static struct wm8750_setup_data spitz_wm8750_setup = {
 349         .i2c_address = 0x1b,
 350 };
 351
 352 /* spitz audio subsystem */
 353 static struct snd_soc_device spitz_snd_devdata = {
 354         .machine = &snd_soc_machine_spitz,
 355         .platform = &pxa2xx_soc_platform,
 356         .codec_dev = &soc_codec_dev_wm8750,
 357         .codec_data = &spitz_wm8750_setup,
 358 };
 359
 360 static struct platform_device *spitz_snd_device;
 361
 362 static int __init spitz_init(void)
 363 {
 364         int ret;
 365
 366         if (!(machine_is_spitz() || machine_is_borzoi() || machine_is_akita()))
 367                 return -ENODEV;
 368
 369         spitz_snd_device = platform_device_alloc("soc-audio", -1);
 370         if (!spitz_snd_device)
 371                 return -ENOMEM;
 372
 373         platform_set_drvdata(spitz_snd_device, &spitz_snd_devdata);
 374         spitz_snd_devdata.dev = &spitz_snd_device->dev;
 375         ret = platform_device_add(spitz_snd_device);
 376
 377         if (ret)
 378                 platform_device_put(spitz_snd_device);
 379
 380         return ret;
 381 }
 382
 383 static void __exit spitz_exit(void)
 384 {
 385         platform_device_unregister(spitz_snd_device);
 386 }
 387
 388 module_init(spitz_init);
 389 module_exit(spitz_exit);
 390
 391 MODULE_AUTHOR("Richard Purdie");
 392 MODULE_DESCRIPTION("ALSA SoC Spitz");
 393 MODULE_LICENSE("GPL");