kernel/sound/soc/samsung/bells.c

   1 /*
   2  * Bells audio support
   3  *
   4  * Copyright 2012 Wolfson Microelectronics
   5  *
   6  * This program is free software; you can redistribute  it and/or modify it
   7  * under  the terms of  the GNU General  Public License as published by the
   8  * Free Software Foundation;  either version 2 of the  License, or (at your
   9  * option) any later version.
  10  */
  11
  12 #include <sound/soc.h>
  13 #include <sound/soc-dapm.h>
  14 #include <sound/jack.h>
  15 #include <linux/gpio.h>
  16 #include <linux/module.h>
  17
  18 #include "../codecs/wm5102.h"
  19 #include "../codecs/wm9081.h"
  20
  21 /* BCLK2 is fixed at this currently */
  22 #define BCLK2_RATE (64 * 8000)
  23
  24 /*
  25  * Expect a 24.576MHz crystal if one is fitted (the driver will function
  26  * if this is not fitted).
  27  */
  28 #define MCLK_RATE 24576000
  29
  30 #define SYS_AUDIO_RATE 44100
  31 #define SYS_MCLK_RATE  (SYS_AUDIO_RATE * 512)
  32
  33 #define DAI_AP_DSP    0
  34 #define DAI_DSP_CODEC 1
  35 #define DAI_CODEC_CP  2
  36 #define DAI_CODEC_SUB 3
  37
  38 struct bells_drvdata {
  39         int sysclk_rate;
  40         int asyncclk_rate;
  41 };
  42
  43 static struct bells_drvdata wm2200_drvdata = {
  44         .sysclk_rate = 22579200,
  45 };
  46
  47 static struct bells_drvdata wm5102_drvdata = {
  48         .sysclk_rate = 45158400,
  49         .asyncclk_rate = 49152000,
  50 };
  51
  52 static struct bells_drvdata wm5110_drvdata = {
  53         .sysclk_rate = 135475200,
  54         .asyncclk_rate = 147456000,
  55 };
  56
  57 static int bells_set_bias_level(struct snd_soc_card *card,
  58                                 struct snd_soc_dapm_context *dapm,
  59                                 enum snd_soc_bias_level level)
  60 {
  61         struct snd_soc_dai *codec_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
  62         struct snd_soc_codec *codec = codec_dai->codec;
  63         struct bells_drvdata *bells = card->drvdata;
  64         int ret;
  65
  66         if (dapm->dev != codec_dai->dev)
  67                 return 0;
  68
  69         switch (level) {
  70         case SND_SOC_BIAS_PREPARE:
  71                 if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
  72                         break;
  73
  74                 ret = snd_soc_codec_set_pll(codec, WM5102_FLL1,
  75                                             ARIZONA_FLL_SRC_MCLK1,
  76                                             MCLK_RATE,
  77                                             bells->sysclk_rate);
  78                 if (ret < 0)
  79                         pr_err("Failed to start FLL: %d\n", ret);
  80
  81                 if (bells->asyncclk_rate) {
  82                         ret = snd_soc_codec_set_pll(codec, WM5102_FLL2,
  83                                                     ARIZONA_FLL_SRC_AIF2BCLK,
  84                                                     BCLK2_RATE,
  85                                                     bells->asyncclk_rate);
  86                         if (ret < 0)
  87                                 pr_err("Failed to start FLL: %d\n", ret);
  88                 }
  89                 break;
  90
  91         default:
  92                 break;
  93         }
  94
  95         return 0;
  96 }
  97
  98 static int bells_set_bias_level_post(struct snd_soc_card *card,
  99                                      struct snd_soc_dapm_context *dapm,
 100                                      enum snd_soc_bias_level level)
 101 {
 102         struct snd_soc_dai *codec_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
 103         struct snd_soc_codec *codec = codec_dai->codec;
 104         struct bells_drvdata *bells = card->drvdata;
 105         int ret;
 106
 107         if (dapm->dev != codec_dai->dev)
 108                 return 0;
 109
 110         switch (level) {
 111         case SND_SOC_BIAS_STANDBY:
 112                 ret = snd_soc_codec_set_pll(codec, WM5102_FLL1, 0, 0, 0);
 113                 if (ret < 0) {
 114                         pr_err("Failed to stop FLL: %d\n", ret);
 115                         return ret;
 116                 }
 117
 118                 if (bells->asyncclk_rate) {
 119                         ret = snd_soc_codec_set_pll(codec, WM5102_FLL2,
 120                                                     0, 0, 0);
 121                         if (ret < 0) {
 122                                 pr_err("Failed to stop FLL: %d\n", ret);
 123                                 return ret;
 124                         }
 125                 }
 126                 break;
 127
 128         default:
 129                 break;
 130         }
 131
 132         dapm->bias_level = level;
 133
 134         return 0;
 135 }
 136
 137 static int bells_late_probe(struct snd_soc_card *card)
 138 {
 139         struct bells_drvdata *bells = card->drvdata;
 140         struct snd_soc_codec *wm0010 = card->rtd[DAI_AP_DSP].codec;
 141         struct snd_soc_codec *codec = card->rtd[DAI_DSP_CODEC].codec;
 142         struct snd_soc_dai *aif1_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
 143         struct snd_soc_dai *aif2_dai;
 144         struct snd_soc_dai *aif3_dai;
 145         struct snd_soc_dai *wm9081_dai;
 146         int ret;
 147
 148         ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK,
 149                                        ARIZONA_CLK_SRC_FLL1,
 150                                        bells->sysclk_rate,
 151                                        SND_SOC_CLOCK_IN);
 152         if (ret != 0) {
 153                 dev_err(codec->dev, "Failed to set SYSCLK: %d\n", ret);
 154                 return ret;
 155         }
 156
 157         ret = snd_soc_codec_set_sysclk(wm0010, 0, 0, SYS_MCLK_RATE, 0);
 158         if (ret != 0) {
 159                 dev_err(wm0010->dev, "Failed to set WM0010 clock: %d\n", ret);
 160                 return ret;
 161         }
 162
 163         ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0);
 164         if (ret != 0)
 165                 dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
 166
 167         ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_OPCLK, 0,
 168                                        SYS_MCLK_RATE, SND_SOC_CLOCK_OUT);
 169         if (ret != 0)
 170                 dev_err(codec->dev, "Failed to set OPCLK: %d\n", ret);
 171
 172         if (card->num_rtd == DAI_CODEC_CP)
 173                 return 0;
 174
 175         ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_ASYNCCLK,
 176                                        ARIZONA_CLK_SRC_FLL2,
 177                                        bells->asyncclk_rate,
 178                                        SND_SOC_CLOCK_IN);
 179         if (ret != 0) {
 180                 dev_err(codec->dev, "Failed to set ASYNCCLK: %d\n", ret);
 181                 return ret;
 182         }
 183
 184         aif2_dai = card->rtd[DAI_CODEC_CP].cpu_dai;
 185
 186         ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0);
 187         if (ret != 0) {
 188                 dev_err(aif2_dai->dev, "Failed to set AIF2 clock: %d\n", ret);
 189                 return ret;
 190         }
 191
 192         if (card->num_rtd == DAI_CODEC_SUB)
 193                 return 0;
 194
 195         aif3_dai = card->rtd[DAI_CODEC_SUB].cpu_dai;
 196         wm9081_dai = card->rtd[DAI_CODEC_SUB].codec_dai;
 197
 198         ret = snd_soc_dai_set_sysclk(aif3_dai, ARIZONA_CLK_SYSCLK, 0, 0);
 199         if (ret != 0) {
 200                 dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
 201                 return ret;
 202         }
 203
 204         ret = snd_soc_codec_set_sysclk(wm9081_dai->codec, WM9081_SYSCLK_MCLK,
 205                                        0, SYS_MCLK_RATE, 0);
 206         if (ret != 0) {
 207                 dev_err(wm9081_dai->dev, "Failed to set MCLK: %d\n", ret);
 208                 return ret;
 209         }
 210
 211         return 0;
 212 }
 213
 214 static const struct snd_soc_pcm_stream baseband_params = {
 215         .formats = SNDRV_PCM_FMTBIT_S32_LE,
 216         .rate_min = 8000,
 217         .rate_max = 8000,
 218         .channels_min = 2,
 219         .channels_max = 2,
 220 };
 221
 222 static const struct snd_soc_pcm_stream sub_params = {
 223         .formats = SNDRV_PCM_FMTBIT_S32_LE,
 224         .rate_min = SYS_AUDIO_RATE,
 225         .rate_max = SYS_AUDIO_RATE,
 226         .channels_min = 2,
 227         .channels_max = 2,
 228 };
 229
 230 static struct snd_soc_dai_link bells_dai_wm2200[] = {
 231         {
 232                 .name = "CPU-DSP",
 233                 .stream_name = "CPU-DSP",
 234                 .cpu_dai_name = "samsung-i2s.0",
 235                 .codec_dai_name = "wm0010-sdi1",
 236                 .platform_name = "samsung-i2s.0",
 237                 .codec_name = "spi0.0",
 238                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 239                                 | SND_SOC_DAIFMT_CBM_CFM,
 240         },
 241         {
 242                 .name = "DSP-CODEC",
 243                 .stream_name = "DSP-CODEC",
 244                 .cpu_dai_name = "wm0010-sdi2",
 245                 .codec_dai_name = "wm2200",
 246                 .codec_name = "wm2200.1-003a",
 247                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 248                                 | SND_SOC_DAIFMT_CBM_CFM,
 249                 .params = &sub_params,
 250                 .ignore_suspend = 1,
 251         },
 252 };
 253
 254 static struct snd_soc_dai_link bells_dai_wm5102[] = {
 255         {
 256                 .name = "CPU-DSP",
 257                 .stream_name = "CPU-DSP",
 258                 .cpu_dai_name = "samsung-i2s.0",
 259                 .codec_dai_name = "wm0010-sdi1",
 260                 .platform_name = "samsung-i2s.0",
 261                 .codec_name = "spi0.0",
 262                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 263                                 | SND_SOC_DAIFMT_CBM_CFM,
 264         },
 265         {
 266                 .name = "DSP-CODEC",
 267                 .stream_name = "DSP-CODEC",
 268                 .cpu_dai_name = "wm0010-sdi2",
 269                 .codec_dai_name = "wm5102-aif1",
 270                 .codec_name = "wm5102-codec",
 271                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 272                                 | SND_SOC_DAIFMT_CBM_CFM,
 273                 .params = &sub_params,
 274                 .ignore_suspend = 1,
 275         },
 276         {
 277                 .name = "Baseband",
 278                 .stream_name = "Baseband",
 279                 .cpu_dai_name = "wm5102-aif2",
 280                 .codec_dai_name = "wm1250-ev1",
 281                 .codec_name = "wm1250-ev1.1-0027",
 282                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 283                                 | SND_SOC_DAIFMT_CBM_CFM,
 284                 .ignore_suspend = 1,
 285                 .params = &baseband_params,
 286         },
 287         {
 288                 .name = "Sub",
 289                 .stream_name = "Sub",
 290                 .cpu_dai_name = "wm5102-aif3",
 291                 .codec_dai_name = "wm9081-hifi",
 292                 .codec_name = "wm9081.1-006c",
 293                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 294                                 | SND_SOC_DAIFMT_CBS_CFS,
 295                 .ignore_suspend = 1,
 296                 .params = &sub_params,
 297         },
 298 };
 299
 300 static struct snd_soc_dai_link bells_dai_wm5110[] = {
 301         {
 302                 .name = "CPU-DSP",
 303                 .stream_name = "CPU-DSP",
 304                 .cpu_dai_name = "samsung-i2s.0",
 305                 .codec_dai_name = "wm0010-sdi1",
 306                 .platform_name = "samsung-i2s.0",
 307                 .codec_name = "spi0.0",
 308                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 309                                 | SND_SOC_DAIFMT_CBM_CFM,
 310         },
 311         {
 312                 .name = "DSP-CODEC",
 313                 .stream_name = "DSP-CODEC",
 314                 .cpu_dai_name = "wm0010-sdi2",
 315                 .codec_dai_name = "wm5110-aif1",
 316                 .codec_name = "wm5110-codec",
 317                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 318                                 | SND_SOC_DAIFMT_CBM_CFM,
 319                 .params = &sub_params,
 320                 .ignore_suspend = 1,
 321         },
 322         {
 323                 .name = "Baseband",
 324                 .stream_name = "Baseband",
 325                 .cpu_dai_name = "wm5110-aif2",
 326                 .codec_dai_name = "wm1250-ev1",
 327                 .codec_name = "wm1250-ev1.1-0027",
 328                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 329                                 | SND_SOC_DAIFMT_CBM_CFM,
 330                 .ignore_suspend = 1,
 331                 .params = &baseband_params,
 332         },
 333         {
 334                 .name = "Sub",
 335                 .stream_name = "Sub",
 336                 .cpu_dai_name = "wm5110-aif3",
 337                 .codec_dai_name = "wm9081-hifi",
 338                 .codec_name = "wm9081.1-006c",
 339                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 340                                 | SND_SOC_DAIFMT_CBS_CFS,
 341                 .ignore_suspend = 1,
 342                 .params = &sub_params,
 343         },
 344 };
 345
 346 static struct snd_soc_codec_conf bells_codec_conf[] = {
 347         {
 348                 .dev_name = "wm9081.1-006c",
 349                 .name_prefix = "Sub",
 350         },
 351 };
 352
 353 static struct snd_soc_dapm_widget bells_widgets[] = {
 354         SND_SOC_DAPM_MIC("DMIC", NULL),
 355 };
 356
 357 static struct snd_soc_dapm_route bells_routes[] = {
 358         { "Sub CLK_SYS", NULL, "OPCLK" },
 359         { "CLKIN", NULL, "OPCLK" },
 360
 361         { "DMIC", NULL, "MICBIAS2" },
 362         { "IN2L", NULL, "DMIC" },
 363         { "IN2R", NULL, "DMIC" },
 364 };
 365
 366 static struct snd_soc_card bells_cards[] = {
 367         {
 368                 .name = "Bells WM2200",
 369                 .owner = THIS_MODULE,
 370                 .dai_link = bells_dai_wm2200,
 371                 .num_links = ARRAY_SIZE(bells_dai_wm2200),
 372                 .codec_conf = bells_codec_conf,
 373                 .num_configs = ARRAY_SIZE(bells_codec_conf),
 374
 375                 .late_probe = bells_late_probe,
 376
 377                 .dapm_widgets = bells_widgets,
 378                 .num_dapm_widgets = ARRAY_SIZE(bells_widgets),
 379                 .dapm_routes = bells_routes,
 380                 .num_dapm_routes = ARRAY_SIZE(bells_routes),
 381
 382                 .set_bias_level = bells_set_bias_level,
 383                 .set_bias_level_post = bells_set_bias_level_post,
 384
 385                 .drvdata = &wm2200_drvdata,
 386         },
 387         {
 388                 .name = "Bells WM5102",
 389                 .owner = THIS_MODULE,
 390                 .dai_link = bells_dai_wm5102,
 391                 .num_links = ARRAY_SIZE(bells_dai_wm5102),
 392                 .codec_conf = bells_codec_conf,
 393                 .num_configs = ARRAY_SIZE(bells_codec_conf),
 394
 395                 .late_probe = bells_late_probe,
 396
 397                 .dapm_widgets = bells_widgets,
 398                 .num_dapm_widgets = ARRAY_SIZE(bells_widgets),
 399                 .dapm_routes = bells_routes,
 400                 .num_dapm_routes = ARRAY_SIZE(bells_routes),
 401
 402                 .set_bias_level = bells_set_bias_level,
 403                 .set_bias_level_post = bells_set_bias_level_post,
 404
 405                 .drvdata = &wm5102_drvdata,
 406         },
 407         {
 408                 .name = "Bells WM5110",
 409                 .owner = THIS_MODULE,
 410                 .dai_link = bells_dai_wm5110,
 411                 .num_links = ARRAY_SIZE(bells_dai_wm5110),
 412                 .codec_conf = bells_codec_conf,
 413                 .num_configs = ARRAY_SIZE(bells_codec_conf),
 414
 415                 .late_probe = bells_late_probe,
 416
 417                 .dapm_widgets = bells_widgets,
 418                 .num_dapm_widgets = ARRAY_SIZE(bells_widgets),
 419                 .dapm_routes = bells_routes,
 420                 .num_dapm_routes = ARRAY_SIZE(bells_routes),
 421
 422                 .set_bias_level = bells_set_bias_level,
 423                 .set_bias_level_post = bells_set_bias_level_post,
 424
 425                 .drvdata = &wm5110_drvdata,
 426         },
 427 };
 428
 429
 430 static int bells_probe(struct platform_device *pdev)
 431 {
 432         int ret;
 433
 434         bells_cards[pdev->id].dev = &pdev->dev;
 435
 436         ret = devm_snd_soc_register_card(&pdev->dev, &bells_cards[pdev->id]);
 437         if (ret)
 438                 dev_err(&pdev->dev,
 439                         "snd_soc_register_card(%s) failed: %d\n",
 440                         bells_cards[pdev->id].name, ret);
 441
 442         return ret;
 443 }
 444
 445 static struct platform_driver bells_driver = {
 446         .driver = {
 447                 .name = "bells",
 448                 .pm = &snd_soc_pm_ops,
 449         },
 450         .probe = bells_probe,
 451 };
 452
 453 module_platform_driver(bells_driver);
 454
 455 MODULE_DESCRIPTION("Bells audio support");
 456 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 457 MODULE_LICENSE("GPL");
 458 MODULE_ALIAS("platform:bells");