sound/soc/samsung/speyside.c

   1 /*
   2  * Speyside audio support
   3  *
   4  * Copyright 2011 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/wm8996.h"
  19 #include "../codecs/wm9081.h"
  20
  21 #define WM8996_HPSEL_GPIO 214
  22 #define MCLK_AUDIO_RATE (512 * 48000)
  23
  24 static int speyside_set_bias_level(struct snd_soc_card *card,
  25                                    struct snd_soc_dapm_context *dapm,
  26                                    enum snd_soc_bias_level level)
  27 {
  28         struct snd_soc_pcm_runtime *rtd;
  29         struct snd_soc_dai *codec_dai;
  30         int ret;
  31
  32         rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
  33         codec_dai = rtd->codec_dai;
  34
  35         if (dapm->dev != codec_dai->dev)
  36                 return 0;
  37
  38         switch (level) {
  39         case SND_SOC_BIAS_STANDBY:
  40                 ret = snd_soc_dai_set_sysclk(codec_dai, WM8996_SYSCLK_MCLK2,
  41                                              32768, SND_SOC_CLOCK_IN);
  42                 if (ret < 0)
  43                         return ret;
  44
  45                 ret = snd_soc_dai_set_pll(codec_dai, WM8996_FLL_MCLK2,
  46                                           0, 0, 0);
  47                 if (ret < 0) {
  48                         pr_err("Failed to stop FLL\n");
  49                         return ret;
  50                 }
  51                 break;
  52
  53         default:
  54                 break;
  55         }
  56
  57         return 0;
  58 }
  59
  60 static int speyside_set_bias_level_post(struct snd_soc_card *card,
  61                                         struct snd_soc_dapm_context *dapm,
  62                                         enum snd_soc_bias_level level)
  63 {
  64         struct snd_soc_pcm_runtime *rtd;
  65         struct snd_soc_dai *codec_dai;
  66         int ret;
  67
  68         rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
  69         codec_dai = rtd->codec_dai;
  70
  71         if (dapm->dev != codec_dai->dev)
  72                 return 0;
  73
  74         switch (level) {
  75         case SND_SOC_BIAS_PREPARE:
  76                 if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) {
  77                         ret = snd_soc_dai_set_pll(codec_dai, 0,
  78                                                   WM8996_FLL_MCLK2,
  79                                                   32768, MCLK_AUDIO_RATE);
  80                         if (ret < 0) {
  81                                 pr_err("Failed to start FLL\n");
  82                                 return ret;
  83                         }
  84
  85                         ret = snd_soc_dai_set_sysclk(codec_dai,
  86                                                      WM8996_SYSCLK_FLL,
  87                                                      MCLK_AUDIO_RATE,
  88                                                      SND_SOC_CLOCK_IN);
  89                         if (ret < 0)
  90                                 return ret;
  91                 }
  92                 break;
  93
  94         default:
  95                 break;
  96         }
  97
  98         card->dapm.bias_level = level;
  99
 100         return 0;
 101 }
 102
 103 static struct snd_soc_jack speyside_headset;
 104
 105 /* Headset jack detection DAPM pins */
 106 static struct snd_soc_jack_pin speyside_headset_pins[] = {
 107         {
 108                 .pin = "Headset Mic",
 109                 .mask = SND_JACK_MICROPHONE,
 110         },
 111 };
 112
 113 /* Default the headphone selection to active high */
 114 static int speyside_jack_polarity;
 115
 116 static int speyside_get_micbias(struct snd_soc_dapm_widget *source,
 117                                 struct snd_soc_dapm_widget *sink)
 118 {
 119         if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0))
 120                 return 1;
 121         if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0))
 122                 return 1;
 123
 124         return 0;
 125 }
 126
 127 static void speyside_set_polarity(struct snd_soc_component *component,
 128                                   int polarity)
 129 {
 130         speyside_jack_polarity = !polarity;
 131         gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
 132
 133         /* Re-run DAPM to make sure we're using the correct mic bias */
 134         snd_soc_dapm_sync(snd_soc_component_get_dapm(component));
 135 }
 136
 137 static int speyside_wm0010_init(struct snd_soc_pcm_runtime *rtd)
 138 {
 139         struct snd_soc_dai *dai = rtd->codec_dai;
 140         int ret;
 141
 142         ret = snd_soc_dai_set_sysclk(dai, 0, MCLK_AUDIO_RATE, 0);
 143         if (ret < 0)
 144                 return ret;
 145
 146         return 0;
 147 }
 148
 149 static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd)
 150 {
 151         struct snd_soc_dai *dai = rtd->codec_dai;
 152         struct snd_soc_component *component = dai->component;
 153         int ret;
 154
 155         ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0);
 156         if (ret < 0)
 157                 return ret;
 158
 159         ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL");
 160         if (ret != 0)
 161                 pr_err("Failed to request HP_SEL GPIO: %d\n", ret);
 162         gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
 163
 164         ret = snd_soc_card_jack_new(rtd->card, "Headset", SND_JACK_LINEOUT |
 165                                     SND_JACK_HEADSET | SND_JACK_BTN_0,
 166                                     &speyside_headset, speyside_headset_pins,
 167                                     ARRAY_SIZE(speyside_headset_pins));
 168         if (ret)
 169                 return ret;
 170
 171         wm8996_detect(component, &speyside_headset, speyside_set_polarity);
 172
 173         return 0;
 174 }
 175
 176 static int speyside_late_probe(struct snd_soc_card *card)
 177 {
 178         snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
 179         snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
 180         snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC");
 181         snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC");
 182         snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker");
 183         snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output");
 184         snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input");
 185
 186         return 0;
 187 }
 188
 189 static const struct snd_soc_pcm_stream dsp_codec_params = {
 190         .formats = SNDRV_PCM_FMTBIT_S32_LE,
 191         .rate_min = 48000,
 192         .rate_max = 48000,
 193         .channels_min = 2,
 194         .channels_max = 2,
 195 };
 196
 197 static struct snd_soc_dai_link speyside_dai[] = {
 198         {
 199                 .name = "CPU-DSP",
 200                 .stream_name = "CPU-DSP",
 201                 .cpu_dai_name = "samsung-i2s.0",
 202                 .codec_dai_name = "wm0010-sdi1",
 203                 .platform_name = "samsung-i2s.0",
 204                 .codec_name = "spi0.0",
 205                 .init = speyside_wm0010_init,
 206                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 207                                 | SND_SOC_DAIFMT_CBM_CFM,
 208         },
 209         {
 210                 .name = "DSP-CODEC",
 211                 .stream_name = "DSP-CODEC",
 212                 .cpu_dai_name = "wm0010-sdi2",
 213                 .codec_dai_name = "wm8996-aif1",
 214                 .codec_name = "wm8996.1-001a",
 215                 .init = speyside_wm8996_init,
 216                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 217                                 | SND_SOC_DAIFMT_CBM_CFM,
 218                 .params = &dsp_codec_params,
 219                 .ignore_suspend = 1,
 220         },
 221         {
 222                 .name = "Baseband",
 223                 .stream_name = "Baseband",
 224                 .cpu_dai_name = "wm8996-aif2",
 225                 .codec_dai_name = "wm1250-ev1",
 226                 .codec_name = "wm1250-ev1.1-0027",
 227                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 228                                 | SND_SOC_DAIFMT_CBM_CFM,
 229                 .ignore_suspend = 1,
 230         },
 231 };
 232
 233 static int speyside_wm9081_init(struct snd_soc_component *component)
 234 {
 235         /* At any time the WM9081 is active it will have this clock */
 236         return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0,
 237                                         MCLK_AUDIO_RATE, 0);
 238 }
 239
 240 static struct snd_soc_aux_dev speyside_aux_dev[] = {
 241         {
 242                 .name = "wm9081",
 243                 .codec_name = "wm9081.1-006c",
 244                 .init = speyside_wm9081_init,
 245         },
 246 };
 247
 248 static struct snd_soc_codec_conf speyside_codec_conf[] = {
 249         {
 250                 .dev_name = "wm9081.1-006c",
 251                 .name_prefix = "Sub",
 252         },
 253 };
 254
 255 static const struct snd_kcontrol_new controls[] = {
 256         SOC_DAPM_PIN_SWITCH("Main Speaker"),
 257         SOC_DAPM_PIN_SWITCH("Main DMIC"),
 258         SOC_DAPM_PIN_SWITCH("Main AMIC"),
 259         SOC_DAPM_PIN_SWITCH("WM1250 Input"),
 260         SOC_DAPM_PIN_SWITCH("WM1250 Output"),
 261         SOC_DAPM_PIN_SWITCH("Headphone"),
 262 };
 263
 264 static struct snd_soc_dapm_widget widgets[] = {
 265         SND_SOC_DAPM_HP("Headphone", NULL),
 266         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 267
 268         SND_SOC_DAPM_SPK("Main Speaker", NULL),
 269
 270         SND_SOC_DAPM_MIC("Main AMIC", NULL),
 271         SND_SOC_DAPM_MIC("Main DMIC", NULL),
 272 };
 273
 274 static struct snd_soc_dapm_route audio_paths[] = {
 275         { "IN1RN", NULL, "MICB1" },
 276         { "IN1RP", NULL, "MICB1" },
 277         { "IN1RN", NULL, "MICB2" },
 278         { "IN1RP", NULL, "MICB2" },
 279         { "MICB1", NULL, "Headset Mic", speyside_get_micbias },
 280         { "MICB2", NULL, "Headset Mic", speyside_get_micbias },
 281
 282         { "IN1LP", NULL, "MICB2" },
 283         { "IN1RN", NULL, "MICB1" },
 284         { "MICB2", NULL, "Main AMIC" },
 285
 286         { "DMIC1DAT", NULL, "MICB1" },
 287         { "DMIC2DAT", NULL, "MICB1" },
 288         { "MICB1", NULL, "Main DMIC" },
 289
 290         { "Headphone", NULL, "HPOUT1L" },
 291         { "Headphone", NULL, "HPOUT1R" },
 292
 293         { "Sub IN1", NULL, "HPOUT2L" },
 294         { "Sub IN2", NULL, "HPOUT2R" },
 295
 296         { "Main Speaker", NULL, "Sub SPKN" },
 297         { "Main Speaker", NULL, "Sub SPKP" },
 298         { "Main Speaker", NULL, "SPKDAT" },
 299 };
 300
 301 static struct snd_soc_card speyside = {
 302         .name = "Speyside",
 303         .owner = THIS_MODULE,
 304         .dai_link = speyside_dai,
 305         .num_links = ARRAY_SIZE(speyside_dai),
 306         .aux_dev = speyside_aux_dev,
 307         .num_aux_devs = ARRAY_SIZE(speyside_aux_dev),
 308         .codec_conf = speyside_codec_conf,
 309         .num_configs = ARRAY_SIZE(speyside_codec_conf),
 310
 311         .set_bias_level = speyside_set_bias_level,
 312         .set_bias_level_post = speyside_set_bias_level_post,
 313
 314         .controls = controls,
 315         .num_controls = ARRAY_SIZE(controls),
 316         .dapm_widgets = widgets,
 317         .num_dapm_widgets = ARRAY_SIZE(widgets),
 318         .dapm_routes = audio_paths,
 319         .num_dapm_routes = ARRAY_SIZE(audio_paths),
 320         .fully_routed = true,
 321
 322         .late_probe = speyside_late_probe,
 323 };
 324
 325 static int speyside_probe(struct platform_device *pdev)
 326 {
 327         struct snd_soc_card *card = &speyside;
 328         int ret;
 329
 330         card->dev = &pdev->dev;
 331
 332         ret = devm_snd_soc_register_card(&pdev->dev, card);
 333         if (ret)
 334                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 335                         ret);
 336
 337         return ret;
 338 }
 339
 340 static struct platform_driver speyside_driver = {
 341         .driver = {
 342                 .name = "speyside",
 343                 .pm = &snd_soc_pm_ops,
 344         },
 345         .probe = speyside_probe,
 346 };
 347
 348 module_platform_driver(speyside_driver);
 349
 350 MODULE_DESCRIPTION("Speyside audio support");
 351 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 352 MODULE_LICENSE("GPL");
 353 MODULE_ALIAS("platform:speyside");