sound/soc/codecs/wm9705.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * wm9705.c  --  ALSA Soc WM9705 codec support
   4  *
   5  * Copyright 2008 Ian Molton <spyro@f2s.com>
   6  */
   7
   8 #include <linux/init.h>
   9 #include <linux/slab.h>
  10 #include <linux/mfd/wm97xx.h>
  11 #include <linux/module.h>
  12 #include <linux/kernel.h>
  13 #include <linux/device.h>
  14 #include <linux/regmap.h>
  15 #include <sound/core.h>
  16 #include <sound/pcm.h>
  17 #include <sound/ac97_codec.h>
  18 #include <sound/ac97/codec.h>
  19 #include <sound/ac97/compat.h>
  20 #include <sound/initval.h>
  21 #include <sound/soc.h>
  22
  23 #define WM9705_VENDOR_ID 0x574d4c05
  24 #define WM9705_VENDOR_ID_MASK 0xffffffff
  25
  26 struct wm9705_priv {
  27         struct snd_ac97 *ac97;
  28         struct wm97xx_platform_data *mfd_pdata;
  29 };
  30
  31 static const struct reg_default wm9705_reg_defaults[] = {
  32         { 0x02, 0x8000 },
  33         { 0x04, 0x8000 },
  34         { 0x06, 0x8000 },
  35         { 0x0a, 0x8000 },
  36         { 0x0c, 0x8008 },
  37         { 0x0e, 0x8008 },
  38         { 0x10, 0x8808 },
  39         { 0x12, 0x8808 },
  40         { 0x14, 0x8808 },
  41         { 0x16, 0x8808 },
  42         { 0x18, 0x8808 },
  43         { 0x1a, 0x0000 },
  44         { 0x1c, 0x8000 },
  45         { 0x20, 0x0000 },
  46         { 0x22, 0x0000 },
  47         { 0x26, 0x000f },
  48         { 0x28, 0x0605 },
  49         { 0x2a, 0x0000 },
  50         { 0x2c, 0xbb80 },
  51         { 0x32, 0xbb80 },
  52         { 0x34, 0x2000 },
  53         { 0x5a, 0x0000 },
  54         { 0x5c, 0x0000 },
  55         { 0x72, 0x0808 },
  56         { 0x74, 0x0000 },
  57         { 0x76, 0x0006 },
  58         { 0x78, 0x0000 },
  59         { 0x7a, 0x0000 },
  60 };
  61
  62 static const struct regmap_config wm9705_regmap_config = {
  63         .reg_bits = 16,
  64         .reg_stride = 2,
  65         .val_bits = 16,
  66         .max_register = 0x7e,
  67         .cache_type = REGCACHE_RBTREE,
  68
  69         .volatile_reg = regmap_ac97_default_volatile,
  70
  71         .reg_defaults = wm9705_reg_defaults,
  72         .num_reg_defaults = ARRAY_SIZE(wm9705_reg_defaults),
  73 };
  74
  75 static const struct snd_kcontrol_new wm9705_snd_ac97_controls[] = {
  76         SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
  77         SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
  78         SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
  79         SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
  80         SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
  81         SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
  82         SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
  83         SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
  84         SOC_SINGLE("PCBeep Playback Volume", AC97_PC_BEEP, 1, 15, 1),
  85         SOC_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 31, 1),
  86         SOC_DOUBLE("Line Playback Volume", AC97_LINE, 8, 0, 31, 1),
  87         SOC_DOUBLE("CD Playback Volume", AC97_CD, 8, 0, 31, 1),
  88         SOC_SINGLE("Mic Playback Volume", AC97_MIC, 0, 31, 1),
  89         SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 6, 1, 0),
  90         SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0),
  91         SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1),
  92 };
  93
  94 static const char *wm9705_mic[] = {"Mic 1", "Mic 2"};
  95 static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC",
  96         "Line", "Stereo Mix", "Mono Mix", "Phone"};
  97
  98 static SOC_ENUM_SINGLE_DECL(wm9705_enum_mic,
  99                             AC97_GENERAL_PURPOSE, 8, wm9705_mic);
 100 static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_l,
 101                             AC97_REC_SEL, 8, wm9705_rec_sel);
 102 static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_r,
 103                             AC97_REC_SEL, 0, wm9705_rec_sel);
 104
 105 /* Headphone Mixer */
 106 static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = {
 107         SOC_DAPM_SINGLE("PCBeep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
 108         SOC_DAPM_SINGLE("CD Playback Switch", AC97_CD, 15, 1, 1),
 109         SOC_DAPM_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1),
 110         SOC_DAPM_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1),
 111         SOC_DAPM_SINGLE("Line Playback Switch", AC97_LINE, 15, 1, 1),
 112 };
 113
 114 /* Mic source */
 115 static const struct snd_kcontrol_new wm9705_mic_src_controls =
 116         SOC_DAPM_ENUM("Route", wm9705_enum_mic);
 117
 118 /* Capture source */
 119 static const struct snd_kcontrol_new wm9705_capture_selectl_controls =
 120         SOC_DAPM_ENUM("Route", wm9705_enum_rec_l);
 121 static const struct snd_kcontrol_new wm9705_capture_selectr_controls =
 122         SOC_DAPM_ENUM("Route", wm9705_enum_rec_r);
 123
 124 /* DAPM widgets */
 125 static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = {
 126         SND_SOC_DAPM_MUX("Mic Source", SND_SOC_NOPM, 0, 0,
 127                 &wm9705_mic_src_controls),
 128         SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0,
 129                 &wm9705_capture_selectl_controls),
 130         SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0,
 131                 &wm9705_capture_selectr_controls),
 132         SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback",
 133                 SND_SOC_NOPM, 0, 0),
 134         SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback",
 135                 SND_SOC_NOPM, 0, 0),
 136         SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer", SND_SOC_NOPM, 0, 0,
 137                 &wm9705_hp_mixer_controls[0],
 138                 ARRAY_SIZE(wm9705_hp_mixer_controls)),
 139         SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
 140         SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0),
 141         SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0),
 142         SND_SOC_DAPM_PGA("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
 143         SND_SOC_DAPM_PGA("Speaker PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
 144         SND_SOC_DAPM_PGA("Line PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
 145         SND_SOC_DAPM_PGA("Line out PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
 146         SND_SOC_DAPM_PGA("Mono PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
 147         SND_SOC_DAPM_PGA("Phone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
 148         SND_SOC_DAPM_PGA("Mic PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
 149         SND_SOC_DAPM_PGA("PCBEEP PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
 150         SND_SOC_DAPM_PGA("CD PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
 151         SND_SOC_DAPM_PGA("ADC PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
 152         SND_SOC_DAPM_OUTPUT("HPOUTL"),
 153         SND_SOC_DAPM_OUTPUT("HPOUTR"),
 154         SND_SOC_DAPM_OUTPUT("LOUT"),
 155         SND_SOC_DAPM_OUTPUT("ROUT"),
 156         SND_SOC_DAPM_OUTPUT("MONOOUT"),
 157         SND_SOC_DAPM_INPUT("PHONE"),
 158         SND_SOC_DAPM_INPUT("LINEINL"),
 159         SND_SOC_DAPM_INPUT("LINEINR"),
 160         SND_SOC_DAPM_INPUT("CDINL"),
 161         SND_SOC_DAPM_INPUT("CDINR"),
 162         SND_SOC_DAPM_INPUT("PCBEEP"),
 163         SND_SOC_DAPM_INPUT("MIC1"),
 164         SND_SOC_DAPM_INPUT("MIC2"),
 165 };
 166
 167 /* Audio map
 168  * WM9705 has no switches to disable the route from the inputs to the HP mixer
 169  * so in order to prevent active inputs from forcing the audio outputs to be
 170  * constantly enabled, we use the mutes on those inputs to simulate such
 171  * controls.
 172  */
 173 static const struct snd_soc_dapm_route wm9705_audio_map[] = {
 174         /* HP mixer */
 175         {"HP Mixer", "PCBeep Playback Switch", "PCBEEP PGA"},
 176         {"HP Mixer", "CD Playback Switch", "CD PGA"},
 177         {"HP Mixer", "Mic Playback Switch", "Mic PGA"},
 178         {"HP Mixer", "Phone Playback Switch", "Phone PGA"},
 179         {"HP Mixer", "Line Playback Switch", "Line PGA"},
 180         {"HP Mixer", NULL, "Left DAC"},
 181         {"HP Mixer", NULL, "Right DAC"},
 182
 183         /* mono mixer */
 184         {"Mono Mixer", NULL, "HP Mixer"},
 185
 186         /* outputs */
 187         {"Headphone PGA", NULL, "HP Mixer"},
 188         {"HPOUTL", NULL, "Headphone PGA"},
 189         {"HPOUTR", NULL, "Headphone PGA"},
 190         {"Line out PGA", NULL, "HP Mixer"},
 191         {"LOUT", NULL, "Line out PGA"},
 192         {"ROUT", NULL, "Line out PGA"},
 193         {"Mono PGA", NULL, "Mono Mixer"},
 194         {"MONOOUT", NULL, "Mono PGA"},
 195
 196         /* inputs */
 197         {"CD PGA", NULL, "CDINL"},
 198         {"CD PGA", NULL, "CDINR"},
 199         {"Line PGA", NULL, "LINEINL"},
 200         {"Line PGA", NULL, "LINEINR"},
 201         {"Phone PGA", NULL, "PHONE"},
 202         {"Mic Source", "Mic 1", "MIC1"},
 203         {"Mic Source", "Mic 2", "MIC2"},
 204         {"Mic PGA", NULL, "Mic Source"},
 205         {"PCBEEP PGA", NULL, "PCBEEP"},
 206
 207         /* Left capture selector */
 208         {"Left Capture Source", "Mic", "Mic Source"},
 209         {"Left Capture Source", "CD", "CDINL"},
 210         {"Left Capture Source", "Line", "LINEINL"},
 211         {"Left Capture Source", "Stereo Mix", "HP Mixer"},
 212         {"Left Capture Source", "Mono Mix", "HP Mixer"},
 213         {"Left Capture Source", "Phone", "PHONE"},
 214
 215         /* Right capture source */
 216         {"Right Capture Source", "Mic", "Mic Source"},
 217         {"Right Capture Source", "CD", "CDINR"},
 218         {"Right Capture Source", "Line", "LINEINR"},
 219         {"Right Capture Source", "Stereo Mix", "HP Mixer"},
 220         {"Right Capture Source", "Mono Mix", "HP Mixer"},
 221         {"Right Capture Source", "Phone", "PHONE"},
 222
 223         {"ADC PGA", NULL, "Left Capture Source"},
 224         {"ADC PGA", NULL, "Right Capture Source"},
 225
 226         /* ADC's */
 227         {"Left ADC",  NULL, "ADC PGA"},
 228         {"Right ADC", NULL, "ADC PGA"},
 229 };
 230
 231 static int ac97_prepare(struct snd_pcm_substream *substream,
 232                         struct snd_soc_dai *dai)
 233 {
 234         struct snd_soc_component *component = dai->component;
 235         int reg;
 236
 237         snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x1, 0x1);
 238
 239         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 240                 reg = AC97_PCM_FRONT_DAC_RATE;
 241         else
 242                 reg = AC97_PCM_LR_ADC_RATE;
 243
 244         return snd_soc_component_write(component, reg, substream->runtime->rate);
 245 }
 246
 247 #define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \
 248                         SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
 249                         SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
 250                         SNDRV_PCM_RATE_48000)
 251
 252 static const struct snd_soc_dai_ops wm9705_dai_ops = {
 253         .prepare        = ac97_prepare,
 254 };
 255
 256 static struct snd_soc_dai_driver wm9705_dai[] = {
 257         {
 258                 .name = "wm9705-hifi",
 259                 .playback = {
 260                         .stream_name = "HiFi Playback",
 261                         .channels_min = 1,
 262                         .channels_max = 2,
 263                         .rates = WM9705_AC97_RATES,
 264                         .formats = SND_SOC_STD_AC97_FMTS,
 265                 },
 266                 .capture = {
 267                         .stream_name = "HiFi Capture",
 268                         .channels_min = 1,
 269                         .channels_max = 2,
 270                         .rates = WM9705_AC97_RATES,
 271                         .formats = SND_SOC_STD_AC97_FMTS,
 272                 },
 273                 .ops = &wm9705_dai_ops,
 274         },
 275         {
 276                 .name = "wm9705-aux",
 277                 .playback = {
 278                         .stream_name = "Aux Playback",
 279                         .channels_min = 1,
 280                         .channels_max = 1,
 281                         .rates = WM9705_AC97_RATES,
 282                         .formats = SNDRV_PCM_FMTBIT_S16_LE,
 283                 },
 284         }
 285 };
 286
 287 #ifdef CONFIG_PM
 288 static int wm9705_soc_suspend(struct snd_soc_component *component)
 289 {
 290         regcache_cache_bypass(component->regmap, true);
 291         snd_soc_component_write(component, AC97_POWERDOWN, 0xffff);
 292         regcache_cache_bypass(component->regmap, false);
 293
 294         return 0;
 295 }
 296
 297 static int wm9705_soc_resume(struct snd_soc_component *component)
 298 {
 299         struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component);
 300         int ret;
 301
 302         ret = snd_ac97_reset(wm9705->ac97, true, WM9705_VENDOR_ID,
 303                 WM9705_VENDOR_ID_MASK);
 304         if (ret < 0)
 305                 return ret;
 306
 307         snd_soc_component_cache_sync(component);
 308
 309         return 0;
 310 }
 311 #else
 312 #define wm9705_soc_suspend NULL
 313 #define wm9705_soc_resume NULL
 314 #endif
 315
 316 static int wm9705_soc_probe(struct snd_soc_component *component)
 317 {
 318         struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component);
 319         struct regmap *regmap;
 320
 321         if (wm9705->mfd_pdata) {
 322                 wm9705->ac97 = wm9705->mfd_pdata->ac97;
 323                 regmap = wm9705->mfd_pdata->regmap;
 324         } else if (IS_ENABLED(CONFIG_SND_SOC_AC97_BUS)) {
 325                 wm9705->ac97 = snd_soc_new_ac97_component(component, WM9705_VENDOR_ID,
 326                                                       WM9705_VENDOR_ID_MASK);
 327                 if (IS_ERR(wm9705->ac97)) {
 328                         dev_err(component->dev, "Failed to register AC97 codec\n");
 329                         return PTR_ERR(wm9705->ac97);
 330                 }
 331
 332                 regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);
 333                 if (IS_ERR(regmap)) {
 334                         snd_soc_free_ac97_component(wm9705->ac97);
 335                         return PTR_ERR(regmap);
 336                 }
 337         } else {
 338                 return -ENXIO;
 339         }
 340
 341         snd_soc_component_set_drvdata(component, wm9705->ac97);
 342         snd_soc_component_init_regmap(component, regmap);
 343
 344         return 0;
 345 }
 346
 347 static void wm9705_soc_remove(struct snd_soc_component *component)
 348 {
 349         struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component);
 350
 351         if (IS_ENABLED(CONFIG_SND_SOC_AC97_BUS) && !wm9705->mfd_pdata) {
 352                 snd_soc_component_exit_regmap(component);
 353                 snd_soc_free_ac97_component(wm9705->ac97);
 354         }
 355 }
 356
 357 static const struct snd_soc_component_driver soc_component_dev_wm9705 = {
 358         .probe                  = wm9705_soc_probe,
 359         .remove                 = wm9705_soc_remove,
 360         .suspend                = wm9705_soc_suspend,
 361         .resume                 = wm9705_soc_resume,
 362         .controls               = wm9705_snd_ac97_controls,
 363         .num_controls           = ARRAY_SIZE(wm9705_snd_ac97_controls),
 364         .dapm_widgets           = wm9705_dapm_widgets,
 365         .num_dapm_widgets       = ARRAY_SIZE(wm9705_dapm_widgets),
 366         .dapm_routes            = wm9705_audio_map,
 367         .num_dapm_routes        = ARRAY_SIZE(wm9705_audio_map),
 368         .idle_bias_on           = 1,
 369         .use_pmdown_time        = 1,
 370         .endianness             = 1,
 371         .non_legacy_dai_naming  = 1,
 372 };
 373
 374 static int wm9705_probe(struct platform_device *pdev)
 375 {
 376         struct wm9705_priv *wm9705;
 377
 378         wm9705 = devm_kzalloc(&pdev->dev, sizeof(*wm9705), GFP_KERNEL);
 379         if (wm9705 == NULL)
 380                 return -ENOMEM;
 381
 382         wm9705->mfd_pdata = dev_get_platdata(&pdev->dev);
 383         platform_set_drvdata(pdev, wm9705);
 384
 385         return devm_snd_soc_register_component(&pdev->dev,
 386                         &soc_component_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
 387 }
 388
 389 static struct platform_driver wm9705_codec_driver = {
 390         .driver = {
 391                         .name = "wm9705-codec",
 392         },
 393
 394         .probe = wm9705_probe,
 395 };
 396
 397 module_platform_driver(wm9705_codec_driver);
 398
 399 MODULE_DESCRIPTION("ASoC WM9705 driver");
 400 MODULE_AUTHOR("Ian Molton");
 401 MODULE_LICENSE("GPL v2");