target/linux/s3c24xx/patches-2.6.24/1037-gta02-sound.patch.patch

   1 From c7b72aecf04a0a51e04f7d9346757c7068e0a74d Mon Sep 17 00:00:00 2001
   2 From: mokopatches <mokopatches@openmoko.org>
   3 Date: Fri, 4 Apr 2008 11:35:32 +0100
   4 Subject: [PATCH] gta02-sound.patch
   5
   6 ---
   7  include/sound/soc-dapm.h                 |    2 +
   8  sound/soc/s3c24xx/Kconfig                |    9 +
   9  sound/soc/s3c24xx/Makefile               |    3 +
  10  sound/soc/s3c24xx/neo1973_gta02_wm8753.c |  667 ++++++++++++++++++++++++++++++
  11  sound/soc/soc-dapm.c                     |   24 ++
  12  5 files changed, 705 insertions(+), 0 deletions(-)
  13  create mode 100644 sound/soc/s3c24xx/neo1973_gta02_wm8753.c
  14
  15 diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
  16 index 2b1ae8e..204be0b 100644
  17 --- a/include/sound/soc-dapm.h
  18 +++ b/include/sound/soc-dapm.h
  19 @@ -206,6 +206,8 @@ int snd_soc_dapm_sys_add(struct device *dev);
  20  /* dapm audio endpoint control */
  21  int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec,
  22         char *pin, int status);
  23 +int snd_soc_dapm_get_endpoint(struct snd_soc_codec *codec,
  24 +       char *pin);
  25  int snd_soc_dapm_sync_endpoints(struct snd_soc_codec *codec);
  26
  27  /* dapm widget types */
  28 diff --git a/sound/soc/s3c24xx/Kconfig b/sound/soc/s3c24xx/Kconfig
  29 index 5632a2e..4146ac4 100644
  30 --- a/sound/soc/s3c24xx/Kconfig
  31 +++ b/sound/soc/s3c24xx/Kconfig
  32 @@ -25,6 +25,15 @@ config SND_S3C24XX_SOC_NEO1973_WM8753
  33           Say Y if you want to add support for SoC audio on smdk2440
  34           with the WM8753.
  35
  36 +config SND_S3C24XX_SOC_NEO1973_GTA02_WM8753
  37 +       tristate "SoC I2S Audio support for NEO1973 GTA02 - WM8753"
  38 +       depends on SND_S3C24XX_SOC && MACH_NEO1973_GTA02
  39 +       select SND_S3C24XX_SOC_I2S
  40 +       select SND_SOC_WM8753
  41 +       help
  42 +         Say Y if you want to add support for SoC audio on neo1973 gta02
  43 +         with the WM8753 codec
  44 +
  45  config SND_S3C24XX_SOC_SMDK2443_WM9710
  46         tristate "SoC AC97 Audio support for SMDK2443 - WM9710"
  47         depends on SND_S3C24XX_SOC && MACH_SMDK2443
  48 diff --git a/sound/soc/s3c24xx/Makefile b/sound/soc/s3c24xx/Makefile
  49 index 13c92f0..e356071 100644
  50 --- a/sound/soc/s3c24xx/Makefile
  51 +++ b/sound/soc/s3c24xx/Makefile
  52 @@ -10,6 +10,9 @@ obj-$(CONFIG_SND_S3C2443_SOC_AC97) += snd-soc-s3c2443-ac97.o
  53  # S3C24XX Machine Support
  54  snd-soc-neo1973-wm8753-objs := neo1973_wm8753.o
  55  snd-soc-smdk2443-wm9710-objs := smdk2443_wm9710.o
  56 +snd-soc-neo1973-gta02-wm8753-objs := neo1973_gta02_wm8753.o
  57
  58  obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
  59  obj-$(CONFIG_SND_S3C24XX_SOC_SMDK2443_WM9710) += snd-soc-smdk2443-wm9710.o
  60 +obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_GTA02_WM8753) += snd-soc-neo1973-gta02-wm8753.o
  61 +
  62 diff --git a/sound/soc/s3c24xx/neo1973_gta02_wm8753.c b/sound/soc/s3c24xx/neo1973_gta02_wm8753.c
  63 new file mode 100644
  64 index 0000000..f32cba3
  65 --- /dev/null
  66 +++ b/sound/soc/s3c24xx/neo1973_gta02_wm8753.c
  67 @@ -0,0 +1,667 @@
  68 +/*
  69 + * neo1973_gta02_wm8753.c  --  SoC audio for Neo1973
  70 + *
  71 + * Copyright 2007 OpenMoko Inc
  72 + * Author: Graeme Gregory <graeme@openmoko.org>
  73 + * Copyright 2007 Wolfson Microelectronics PLC.
  74 + * Author: Graeme Gregory <linux@wolfsonmicro.com>
  75 + *
  76 + *  This program is free software; you can redistribute  it and/or modify it
  77 + *  under  the terms of  the GNU General  Public License as published by the
  78 + *  Free Software Foundation;  either version 2 of the  License, or (at your
  79 + *  option) any later version.
  80 + *
  81 + *  Revision history
  82 + *    06th Nov 2007   Changed from GTA01 to GTA02
  83 + *    20th Jan 2007   Initial version.
  84 + *    05th Feb 2007   Rename all to Neo1973
  85 + *
  86 + */
  87 +
  88 +#include <linux/module.h>
  89 +#include <linux/moduleparam.h>
  90 +#include <linux/timer.h>
  91 +#include <linux/interrupt.h>
  92 +#include <linux/platform_device.h>
  93 +#include <linux/i2c.h>
  94 +#include <sound/driver.h>
  95 +#include <sound/core.h>
  96 +#include <sound/pcm.h>
  97 +#include <sound/soc.h>
  98 +#include <sound/soc-dapm.h>
  99 +
 100 +#include <asm/mach-types.h>
 101 +#include <asm/hardware/scoop.h>
 102 +#include <asm/plat-s3c24xx/regs-iis.h>
 103 +#include <asm/arch/regs-clock.h>
 104 +#include <asm/arch/regs-gpio.h>
 105 +#include <asm/hardware.h>
 106 +#include <asm/arch/audio.h>
 107 +#include <asm/io.h>
 108 +#include <asm/arch/spi-gpio.h>
 109 +#include <asm/arch/regs-gpioj.h>
 110 +#include <asm/arch/gta02.h>
 111 +#include "../codecs/wm8753.h"
 112 +#include "s3c24xx-pcm.h"
 113 +#include "s3c24xx-i2s.h"
 114 +
 115 +/* define the scenarios */
 116 +#define NEO_AUDIO_OFF                  0
 117 +#define NEO_GSM_CALL_AUDIO_HANDSET     1
 118 +#define NEO_GSM_CALL_AUDIO_HEADSET     2
 119 +#define NEO_GSM_CALL_AUDIO_BLUETOOTH   3
 120 +#define NEO_STEREO_TO_SPEAKERS         4
 121 +#define NEO_STEREO_TO_HEADPHONES       5
 122 +#define NEO_CAPTURE_HANDSET            6
 123 +#define NEO_CAPTURE_HEADSET            7
 124 +#define NEO_CAPTURE_BLUETOOTH          8
 125 +#define NEO_STEREO_TO_HANDSET_SPK      9
 126 +
 127 +static struct snd_soc_machine neo1973_gta02;
 128 +
 129 +static int neo1973_gta02_hifi_hw_params(struct snd_pcm_substream *substream,
 130 +       struct snd_pcm_hw_params *params)
 131 +{
 132 +       struct snd_soc_pcm_runtime *rtd = substream->private_data;
 133 +       struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai;
 134 +       struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
 135 +       unsigned int pll_out = 0, bclk = 0;
 136 +       int ret = 0;
 137 +       unsigned long iis_clkrate;
 138 +
 139 +       iis_clkrate = s3c24xx_i2s_get_clockrate();
 140 +
 141 +       switch (params_rate(params)) {
 142 +       case 8000:
 143 +       case 16000:
 144 +               pll_out = 12288000;
 145 +               break;
 146 +       case 48000:
 147 +               bclk = WM8753_BCLK_DIV_4;
 148 +               pll_out = 12288000;
 149 +               break;
 150 +       case 96000:
 151 +               bclk = WM8753_BCLK_DIV_2;
 152 +               pll_out = 12288000;
 153 +               break;
 154 +       case 11025:
 155 +               bclk = WM8753_BCLK_DIV_16;
 156 +               pll_out = 11289600;
 157 +               break;
 158 +       case 22050:
 159 +               bclk = WM8753_BCLK_DIV_8;
 160 +               pll_out = 11289600;
 161 +               break;
 162 +       case 44100:
 163 +               bclk = WM8753_BCLK_DIV_4;
 164 +               pll_out = 11289600;
 165 +               break;
 166 +       case 88200:
 167 +               bclk = WM8753_BCLK_DIV_2;
 168 +               pll_out = 11289600;
 169 +               break;
 170 +       }
 171 +
 172 +       /* set codec DAI configuration */
 173 +       ret = codec_dai->dai_ops.set_fmt(codec_dai,
 174 +               SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 175 +               SND_SOC_DAIFMT_CBM_CFM);
 176 +       if (ret < 0)
 177 +               return ret;
 178 +
 179 +       /* set cpu DAI configuration */
 180 +       ret = cpu_dai->dai_ops.set_fmt(cpu_dai,
 181 +               SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 182 +               SND_SOC_DAIFMT_CBM_CFM);
 183 +       if (ret < 0)
 184 +               return ret;
 185 +
 186 +       /* set the codec system clock for DAC and ADC */
 187 +       ret = codec_dai->dai_ops.set_sysclk(codec_dai, WM8753_MCLK, pll_out,
 188 +               SND_SOC_CLOCK_IN);
 189 +       if (ret < 0)
 190 +               return ret;
 191 +
 192 +       /* set MCLK division for sample rate */
 193 +       ret = cpu_dai->dai_ops.set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
 194 +               S3C2410_IISMOD_32FS );
 195 +       if (ret < 0)
 196 +               return ret;
 197 +
 198 +       /* set codec BCLK division for sample rate */
 199 +       ret = codec_dai->dai_ops.set_clkdiv(codec_dai,
 200 +                                       WM8753_BCLKDIV, bclk);
 201 +       if (ret < 0)
 202 +               return ret;
 203 +
 204 +       /* set prescaler division for sample rate */
 205 +       ret = cpu_dai->dai_ops.set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
 206 +               S3C24XX_PRESCALE(4,4));
 207 +       if (ret < 0)
 208 +               return ret;
 209 +
 210 +       /* codec PLL input is PCLK/4 */
 211 +       ret = codec_dai->dai_ops.set_pll(codec_dai, WM8753_PLL1,
 212 +               iis_clkrate / 4, pll_out);
 213 +       if (ret < 0)
 214 +               return ret;
 215 +
 216 +       return 0;
 217 +}
 218 +
 219 +static int neo1973_gta02_hifi_hw_free(struct snd_pcm_substream *substream)
 220 +{
 221 +       struct snd_soc_pcm_runtime *rtd = substream->private_data;
 222 +       struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai;
 223 +
 224 +       /* disable the PLL */
 225 +       return codec_dai->dai_ops.set_pll(codec_dai, WM8753_PLL1, 0, 0);
 226 +}
 227 +
 228 +/*
 229 + * Neo1973 WM8753 HiFi DAI opserations.
 230 + */
 231 +static struct snd_soc_ops neo1973_gta02_hifi_ops = {
 232 +       .hw_params = neo1973_gta02_hifi_hw_params,
 233 +       .hw_free = neo1973_gta02_hifi_hw_free,
 234 +};
 235 +
 236 +static int neo1973_gta02_voice_hw_params(
 237 +       struct snd_pcm_substream *substream,
 238 +       struct snd_pcm_hw_params *params)
 239 +{
 240 +       struct snd_soc_pcm_runtime *rtd = substream->private_data;
 241 +       struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai;
 242 +       unsigned int pcmdiv = 0;
 243 +       int ret = 0;
 244 +       unsigned long iis_clkrate;
 245 +
 246 +       iis_clkrate = s3c24xx_i2s_get_clockrate();
 247 +
 248 +       if (params_rate(params) != 8000)
 249 +               return -EINVAL;
 250 +       if (params_channels(params) != 1)
 251 +               return -EINVAL;
 252 +
 253 +       pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */
 254 +
 255 +       /* todo: gg check mode (DSP_B) against CSR datasheet */
 256 +       /* set codec DAI configuration */
 257 +       ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B |
 258 +               SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
 259 +       if (ret < 0)
 260 +               return ret;
 261 +
 262 +       /* set the codec system clock for DAC and ADC */
 263 +       ret = codec_dai->dai_ops.set_sysclk(codec_dai, WM8753_PCMCLK,
 264 +               12288000, SND_SOC_CLOCK_IN);
 265 +       if (ret < 0)
 266 +               return ret;
 267 +
 268 +       /* set codec PCM division for sample rate */
 269 +       ret = codec_dai->dai_ops.set_clkdiv(codec_dai, WM8753_PCMDIV,
 270 +                                       pcmdiv);
 271 +       if (ret < 0)
 272 +               return ret;
 273 +
 274 +       /* configue and enable PLL for 12.288MHz output */
 275 +       ret = codec_dai->dai_ops.set_pll(codec_dai, WM8753_PLL2,
 276 +               iis_clkrate / 4, 12288000);
 277 +       if (ret < 0)
 278 +               return ret;
 279 +
 280 +       return 0;
 281 +}
 282 +
 283 +static int neo1973_gta02_voice_hw_free(struct snd_pcm_substream *substream)
 284 +{
 285 +       struct snd_soc_pcm_runtime *rtd = substream->private_data;
 286 +       struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai;
 287 +
 288 +       /* disable the PLL */
 289 +       return codec_dai->dai_ops.set_pll(codec_dai, WM8753_PLL2, 0, 0);
 290 +}
 291 +
 292 +static struct snd_soc_ops neo1973_gta02_voice_ops = {
 293 +       .hw_params = neo1973_gta02_voice_hw_params,
 294 +       .hw_free = neo1973_gta02_voice_hw_free,
 295 +};
 296 +
 297 +#define LM4853_AMP 1
 298 +#define LM4853_SPK 2
 299 +
 300 +static u8 lm4853_state=0;
 301 +
 302 +static int lm4853_set_state(struct snd_kcontrol *kcontrol,
 303 +       struct snd_ctl_elem_value *ucontrol)
 304 +{
 305 +       int val = ucontrol->value.integer.value[0];
 306 +
 307 +       if(val) {
 308 +               lm4853_state |= LM4853_AMP;
 309 +               s3c2410_gpio_setpin(GTA02_GPIO_AMP_SHUT,0);
 310 +       } else {
 311 +               lm4853_state &= ~LM4853_AMP;
 312 +               s3c2410_gpio_setpin(GTA02_GPIO_AMP_SHUT,1);
 313 +       }
 314 +
 315 +       return 0;
 316 +}
 317 +
 318 +static int lm4853_get_state(struct snd_kcontrol *kcontrol,
 319 +       struct snd_ctl_elem_value *ucontrol)
 320 +{
 321 +       ucontrol->value.integer.value[0] = lm4853_state & LM4853_AMP;
 322 +
 323 +       return 0;
 324 +}
 325 +
 326 +static int lm4853_set_spk(struct snd_kcontrol *kcontrol,
 327 +       struct snd_ctl_elem_value *ucontrol)
 328 +{
 329 +       int val = ucontrol->value.integer.value[0];
 330 +
 331 +       if(val) {
 332 +               lm4853_state |= LM4853_SPK;
 333 +               s3c2410_gpio_setpin(GTA02_GPIO_HP_IN,0);
 334 +       } else {
 335 +               lm4853_state &= ~LM4853_SPK;
 336 +               s3c2410_gpio_setpin(GTA02_GPIO_HP_IN,1);
 337 +       }
 338 +
 339 +       return 0;
 340 +}
 341 +
 342 +static int lm4853_get_spk(struct snd_kcontrol *kcontrol,
 343 +       struct snd_ctl_elem_value *ucontrol)
 344 +{
 345 +       ucontrol->value.integer.value[0] = (lm4853_state & LM4853_SPK) >> 1;
 346 +
 347 +       return 0;
 348 +}
 349 +
 350 +static int neo1973_gta02_set_stereo_out(struct snd_kcontrol *kcontrol,
 351 +       struct snd_ctl_elem_value *ucontrol)
 352 +{
 353 +       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 354 +       int val = ucontrol->value.integer.value[0];
 355 +
 356 +       snd_soc_dapm_set_endpoint(codec, "Stereo Out", val);
 357 +
 358 +       snd_soc_dapm_sync_endpoints(codec);
 359 +
 360 +       return 0;
 361 +}
 362 +
 363 +static int neo1973_gta02_get_stereo_out(struct snd_kcontrol *kcontrol,
 364 +       struct snd_ctl_elem_value *ucontrol)
 365 +{
 366 +       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 367 +
 368 +       ucontrol->value.integer.value[0] =
 369 +               snd_soc_dapm_get_endpoint(codec, "Stereo Out");
 370 +
 371 +       return 0;
 372 +}
 373 +
 374 +
 375 +static int neo1973_gta02_set_gsm_out(struct snd_kcontrol *kcontrol,
 376 +       struct snd_ctl_elem_value *ucontrol)
 377 +{
 378 +       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 379 +       int val = ucontrol->value.integer.value[0];
 380 +
 381 +       snd_soc_dapm_set_endpoint(codec, "GSM Line Out", val);
 382 +
 383 +       snd_soc_dapm_sync_endpoints(codec);
 384 +
 385 +       return 0;
 386 +}
 387 +
 388 +static int neo1973_gta02_get_gsm_out(struct snd_kcontrol *kcontrol,
 389 +       struct snd_ctl_elem_value *ucontrol)
 390 +{
 391 +       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 392 +
 393 +       ucontrol->value.integer.value[0] =
 394 +               snd_soc_dapm_get_endpoint(codec, "GSM Line Out");
 395 +
 396 +       return 0;
 397 +}
 398 +
 399 +static int neo1973_gta02_set_gsm_in(struct snd_kcontrol *kcontrol,
 400 +       struct snd_ctl_elem_value *ucontrol)
 401 +{
 402 +       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 403 +       int val = ucontrol->value.integer.value[0];
 404 +
 405 +       snd_soc_dapm_set_endpoint(codec, "GSM Line In", val);
 406 +
 407 +       snd_soc_dapm_sync_endpoints(codec);
 408 +
 409 +       return 0;
 410 +}
 411 +
 412 +static int neo1973_gta02_get_gsm_in(struct snd_kcontrol *kcontrol,
 413 +       struct snd_ctl_elem_value *ucontrol)
 414 +{
 415 +       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 416 +
 417 +       ucontrol->value.integer.value[0] =
 418 +               snd_soc_dapm_get_endpoint(codec, "GSM Line In");
 419 +
 420 +       return 0;
 421 +}
 422 +
 423 +static int neo1973_gta02_set_headset_mic(struct snd_kcontrol *kcontrol,
 424 +       struct snd_ctl_elem_value *ucontrol)
 425 +{
 426 +       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 427 +       int val = ucontrol->value.integer.value[0];
 428 +
 429 +       snd_soc_dapm_set_endpoint(codec, "Headset Mic", val);
 430 +
 431 +       snd_soc_dapm_sync_endpoints(codec);
 432 +
 433 +       return 0;
 434 +}
 435 +
 436 +static int neo1973_gta02_get_headset_mic(struct snd_kcontrol *kcontrol,
 437 +       struct snd_ctl_elem_value *ucontrol)
 438 +{
 439 +       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 440 +
 441 +       ucontrol->value.integer.value[0] =
 442 +               snd_soc_dapm_get_endpoint(codec, "Headset Mic");
 443 +
 444 +       return 0;
 445 +}
 446 +
 447 +static int neo1973_gta02_set_handset_mic(struct snd_kcontrol *kcontrol,
 448 +       struct snd_ctl_elem_value *ucontrol)
 449 +{
 450 +       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 451 +       int val = ucontrol->value.integer.value[0];
 452 +
 453 +       snd_soc_dapm_set_endpoint(codec, "Handset Mic", val);
 454 +
 455 +       snd_soc_dapm_sync_endpoints(codec);
 456 +
 457 +       return 0;
 458 +}
 459 +
 460 +static int neo1973_gta02_get_handset_mic(struct snd_kcontrol *kcontrol,
 461 +       struct snd_ctl_elem_value *ucontrol)
 462 +{
 463 +       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 464 +
 465 +       ucontrol->value.integer.value[0] =
 466 +               snd_soc_dapm_get_endpoint(codec, "Handset Mic");
 467 +
 468 +       return 0;
 469 +}
 470 +
 471 +static int neo1973_gta02_set_handset_spk(struct snd_kcontrol *kcontrol,
 472 +       struct snd_ctl_elem_value *ucontrol)
 473 +{
 474 +       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 475 +       int val = ucontrol->value.integer.value[0];
 476 +
 477 +       snd_soc_dapm_set_endpoint(codec, "Handset Spk", val);
 478 +
 479 +       snd_soc_dapm_sync_endpoints(codec);
 480 +
 481 +       return 0;
 482 +}
 483 +
 484 +static int neo1973_gta02_get_handset_spk(struct snd_kcontrol *kcontrol,
 485 +       struct snd_ctl_elem_value *ucontrol)
 486 +{
 487 +       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 488 +
 489 +       ucontrol->value.integer.value[0] =
 490 +               snd_soc_dapm_get_endpoint(codec, "Handset Spk");
 491 +
 492 +       return 0;
 493 +}
 494 +
 495 +static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
 496 +       SND_SOC_DAPM_LINE("Stereo Out", NULL),
 497 +       SND_SOC_DAPM_LINE("GSM Line Out", NULL),
 498 +       SND_SOC_DAPM_LINE("GSM Line In", NULL),
 499 +       SND_SOC_DAPM_MIC("Headset Mic", NULL),
 500 +       SND_SOC_DAPM_MIC("Handset Mic", NULL),
 501 +       SND_SOC_DAPM_SPK("Handset Spk", NULL),
 502 +};
 503 +
 504 +
 505 +/* example machine audio_mapnections */
 506 +static const char* audio_map[][3] = {
 507 +
 508 +       /* Connections to the lm4853 amp */
 509 +       {"Stereo Out", NULL, "LOUT1"},
 510 +       {"Stereo Out", NULL, "ROUT1"},
 511 +
 512 +       /* Connections to the GSM Module */
 513 +       {"GSM Line Out", NULL, "MONO1"},
 514 +       {"GSM Line Out", NULL, "MONO2"},
 515 +       {"RXP", NULL, "GSM Line In"},
 516 +       {"RXN", NULL, "GSM Line In"},
 517 +
 518 +       /* Connections to Headset */
 519 +       {"MIC1", NULL, "Mic Bias"},
 520 +       {"Mic Bias", NULL, "Headset Mic"},
 521 +
 522 +       /* Call Mic */
 523 +       {"MIC2", NULL, "Mic Bias"},
 524 +       {"MIC2N", NULL, "Mic Bias"},
 525 +       {"Mic Bias", NULL, "Handset Mic"},
 526 +
 527 +       /* Call Speaker */
 528 +       {"Handset Spk", NULL, "LOUT2"},
 529 +       {"Handset Spk", NULL, "ROUT2"},
 530 +
 531 +       /* Connect the ALC pins */
 532 +       {"ACIN", NULL, "ACOP"},
 533 +
 534 +       {NULL, NULL, NULL},
 535 +};
 536 +
 537 +static const struct snd_kcontrol_new wm8753_neo1973_gta02_controls[] = {
 538 +       SOC_SINGLE_EXT("DAPM Stereo Out Switch", 0, 0, 1, 0,
 539 +               neo1973_gta02_get_stereo_out,
 540 +               neo1973_gta02_set_stereo_out),
 541 +       SOC_SINGLE_EXT("DAPM GSM Line Out Switch", 1, 0, 1, 0,
 542 +               neo1973_gta02_get_gsm_out,
 543 +               neo1973_gta02_set_gsm_out),
 544 +       SOC_SINGLE_EXT("DAPM GSM Line In Switch", 2, 0, 1, 0,
 545 +               neo1973_gta02_get_gsm_in,
 546 +               neo1973_gta02_set_gsm_in),
 547 +       SOC_SINGLE_EXT("DAPM Headset Mic Switch", 3, 0, 1, 0,
 548 +               neo1973_gta02_get_headset_mic,
 549 +               neo1973_gta02_set_headset_mic),
 550 +       SOC_SINGLE_EXT("DAPM Handset Mic Switch", 4, 0, 1, 0,
 551 +               neo1973_gta02_get_handset_mic,
 552 +               neo1973_gta02_set_handset_mic),
 553 +       SOC_SINGLE_EXT("DAPM Handset Spk Switch", 5, 0, 1, 0,
 554 +               neo1973_gta02_get_handset_spk,
 555 +               neo1973_gta02_set_handset_spk),
 556 +       SOC_SINGLE_EXT("Amp State Switch", 6, 0, 1, 0,
 557 +               lm4853_get_state,
 558 +               lm4853_set_state),
 559 +       SOC_SINGLE_EXT("Amp Spk Switch", 7, 0, 1, 0,
 560 +               lm4853_get_spk,
 561 +               lm4853_set_spk),
 562 +};
 563 +
 564 +/*
 565 + * This is an example machine initialisation for a wm8753 connected to a
 566 + * neo1973 GTA02.
 567 + */
 568 +static int neo1973_gta02_wm8753_init(struct snd_soc_codec *codec)
 569 +{
 570 +       int i, err;
 571 +
 572 +       /* set up NC codec pins */
 573 +       snd_soc_dapm_set_endpoint(codec, "OUT3",  0);
 574 +       snd_soc_dapm_set_endpoint(codec, "OUT4",  0);
 575 +       snd_soc_dapm_set_endpoint(codec, "LINE1", 0);
 576 +       snd_soc_dapm_set_endpoint(codec, "LINE2", 0);
 577 +
 578 +       /* Add neo1973 gta02 specific widgets */
 579 +       for (i = 0; i < ARRAY_SIZE(wm8753_dapm_widgets); i++)
 580 +               snd_soc_dapm_new_control(codec, &wm8753_dapm_widgets[i]);
 581 +
 582 +       /* add neo1973 gta02 specific controls */
 583 +       for (i = 0; i < ARRAY_SIZE(wm8753_neo1973_gta02_controls); i++) {
 584 +               err = snd_ctl_add(codec->card,
 585 +                       snd_soc_cnew(&wm8753_neo1973_gta02_controls[i],
 586 +                       codec, NULL));
 587 +               if (err < 0)
 588 +                       return err;
 589 +       }
 590 +
 591 +       /* set up neo1973 gta02 specific audio path audio_mapnects */
 592 +       for (i = 0; audio_map[i][0] != NULL; i++) {
 593 +               snd_soc_dapm_connect_input(codec, audio_map[i][0],
 594 +                       audio_map[i][1], audio_map[i][2]);
 595 +       }
 596 +
 597 +       /* set endpoints to default off mode */
 598 +       snd_soc_dapm_set_endpoint(codec, "Stereo Out",  0);
 599 +       snd_soc_dapm_set_endpoint(codec, "GSM Line Out",0);
 600 +       snd_soc_dapm_set_endpoint(codec, "GSM Line In", 0);
 601 +       snd_soc_dapm_set_endpoint(codec, "Headset Mic", 0);
 602 +       snd_soc_dapm_set_endpoint(codec, "Handset Mic", 0);
 603 +       snd_soc_dapm_set_endpoint(codec, "Handset Spk", 0);
 604 +
 605 +       snd_soc_dapm_sync_endpoints(codec);
 606 +       return 0;
 607 +}
 608 +
 609 +/*
 610 + * BT Codec DAI
 611 + */
 612 +static struct snd_soc_cpu_dai bt_dai =
 613 +{      .name = "Bluetooth",
 614 +       .id = 0,
 615 +       .type = SND_SOC_DAI_PCM,
 616 +       .playback = {
 617 +               .channels_min = 1,
 618 +               .channels_max = 1,
 619 +               .rates = SNDRV_PCM_RATE_8000,
 620 +               .formats = SNDRV_PCM_FMTBIT_S16_LE,},
 621 +       .capture = {
 622 +               .channels_min = 1,
 623 +               .channels_max = 1,
 624 +               .rates = SNDRV_PCM_RATE_8000,
 625 +               .formats = SNDRV_PCM_FMTBIT_S16_LE,},
 626 +};
 627 +
 628 +static struct snd_soc_dai_link neo1973_gta02_dai[] = {
 629 +{ /* Hifi Playback - for similatious use with voice below */
 630 +       .name = "WM8753",
 631 +       .stream_name = "WM8753 HiFi",
 632 +       .cpu_dai = &s3c24xx_i2s_dai,
 633 +       .codec_dai = &wm8753_dai[WM8753_DAI_HIFI],
 634 +       .init = neo1973_gta02_wm8753_init,
 635 +       .ops = &neo1973_gta02_hifi_ops,
 636 +},
 637 +{ /* Voice via BT */
 638 +       .name = "Bluetooth",
 639 +       .stream_name = "Voice",
 640 +       .cpu_dai = &bt_dai,
 641 +       .codec_dai = &wm8753_dai[WM8753_DAI_VOICE],
 642 +       .ops = &neo1973_gta02_voice_ops,
 643 +},
 644 +};
 645 +
 646 +#ifdef CONFIG_PM
 647 +int neo1973_gta02_suspend(struct platform_device *pdev, pm_message_t state)
 648 +{
 649 +       s3c2410_gpio_setpin(GTA02_GPIO_AMP_SHUT, 1);
 650 +
 651 +       return 0;
 652 +}
 653 +
 654 +int neo1973_gta02_resume(struct platform_device *pdev)
 655 +{
 656 +       if(lm4853_state & LM4853_AMP)
 657 +               s3c2410_gpio_setpin(GTA02_GPIO_AMP_SHUT, 0);
 658 +
 659 +       return 0;
 660 +}
 661 +#else
 662 +#define neo1973_gta02_suspend NULL
 663 +#define neo1973_gta02_resume NULL
 664 +#endif
 665 +
 666 +static struct snd_soc_machine neo1973_gta02 = {
 667 +       .name = "neo1973-gta02",
 668 +       .suspend_pre = neo1973_gta02_suspend,
 669 +       .resume_post = neo1973_gta02_resume,
 670 +       .dai_link = neo1973_gta02_dai,
 671 +       .num_links = ARRAY_SIZE(neo1973_gta02_dai),
 672 +};
 673 +
 674 +static struct wm8753_setup_data neo1973_gta02_wm8753_setup = {
 675 +       .i2c_address = 0x1a,
 676 +};
 677 +
 678 +static struct snd_soc_device neo1973_gta02_snd_devdata = {
 679 +       .machine = &neo1973_gta02,
 680 +       .platform = &s3c24xx_soc_platform,
 681 +       .codec_dev = &soc_codec_dev_wm8753,
 682 +       .codec_data = &neo1973_gta02_wm8753_setup,
 683 +};
 684 +
 685 +static struct platform_device *neo1973_gta02_snd_device;
 686 +
 687 +static int __init neo1973_gta02_init(void)
 688 +{
 689 +       int ret;
 690 +
 691 +       if (!machine_is_neo1973_gta02()) {
 692 +               printk(KERN_INFO
 693 +                      "Only GTA02 hardware supported by ASoc driver\n");
 694 +               return -ENODEV;
 695 +       }
 696 +
 697 +       neo1973_gta02_snd_device = platform_device_alloc("soc-audio", -1);
 698 +       if (!neo1973_gta02_snd_device)
 699 +               return -ENOMEM;
 700 +
 701 +       platform_set_drvdata(neo1973_gta02_snd_device,
 702 +                       &neo1973_gta02_snd_devdata);
 703 +       neo1973_gta02_snd_devdata.dev = &neo1973_gta02_snd_device->dev;
 704 +       ret = platform_device_add(neo1973_gta02_snd_device);
 705 +
 706 +       if (ret)
 707 +               platform_device_put(neo1973_gta02_snd_device);
 708 +
 709 +       /* Initialise GPIOs used by amp */
 710 +       s3c2410_gpio_cfgpin(GTA02_GPIO_HP_IN, S3C2410_GPIO_OUTPUT);
 711 +       s3c2410_gpio_cfgpin(GTA02_GPIO_AMP_SHUT, S3C2410_GPIO_OUTPUT);
 712 +
 713 +       /* Amp off by default */
 714 +       s3c2410_gpio_setpin(GTA02_GPIO_AMP_SHUT, 1);
 715 +
 716 +       /* Speaker off by default */
 717 +       s3c2410_gpio_setpin(GTA02_GPIO_HP_IN, 1);
 718 +
 719 +       return ret;
 720 +}
 721 +
 722 +static void __exit neo1973_gta02_exit(void)
 723 +{
 724 +       platform_device_unregister(neo1973_gta02_snd_device);
 725 +}
 726 +
 727 +module_init(neo1973_gta02_init);
 728 +module_exit(neo1973_gta02_exit);
 729 +
 730 +/* Module information */
 731 +MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org");
 732 +MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 GTA02");
 733 +MODULE_LICENSE("GPL");
 734 +
 735 diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
 736 index 29a546f..84fa860 100644
 737 --- a/sound/soc/soc-dapm.c
 738 +++ b/sound/soc/soc-dapm.c
 739 @@ -1305,6 +1305,30 @@ int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec,
 740  EXPORT_SYMBOL_GPL(snd_soc_dapm_set_endpoint);
 741
 742  /**
 743 + * snd_soc_dapm_get_endpoint - get audio endpoint status
 744 + * @codec: audio codec
 745 + * @endpoint: audio signal endpoint (or start point)
 746 + *
 747 + * Get audio endpoint status - connected or disconnected.
 748 + *
 749 + * Returns status
 750 + */
 751 +int snd_soc_dapm_get_endpoint(struct snd_soc_codec *codec,
 752 +       char *endpoint)
 753 +{
 754 +       struct snd_soc_dapm_widget *w;
 755 +
 756 +       list_for_each_entry(w, &codec->dapm_widgets, list) {
 757 +               if (!strcmp(w->name, endpoint)) {
 758 +                       return w->connected;
 759 +               }
 760 +       }
 761 +
 762 +       return 0;
 763 +}
 764 +EXPORT_SYMBOL_GPL(snd_soc_dapm_get_endpoint);
 765 +
 766 +/**
 767   * snd_soc_dapm_free - free dapm resources
 768   * @socdev: SoC device
 769   *
 770 --
 771 1.5.6.5
 772