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_MAPLE, 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 }; 372 373 static int wm9705_probe(struct platform_device *pdev) 374 { 375 struct wm9705_priv *wm9705; 376 377 wm9705 = devm_kzalloc(&pdev->dev, sizeof(*wm9705), GFP_KERNEL); 378 if (wm9705 == NULL) 379 return -ENOMEM; 380 381 wm9705->mfd_pdata = dev_get_platdata(&pdev->dev); 382 platform_set_drvdata(pdev, wm9705); 383 384 return devm_snd_soc_register_component(&pdev->dev, 385 &soc_component_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai)); 386 } 387 388 static struct platform_driver wm9705_codec_driver = { 389 .driver = { 390 .name = "wm9705-codec", 391 }, 392 393 .probe = wm9705_probe, 394 }; 395 396 module_platform_driver(wm9705_codec_driver); 397 398 MODULE_DESCRIPTION("ASoC WM9705 driver"); 399 MODULE_AUTHOR("Ian Molton"); 400 MODULE_LICENSE("GPL v2"); 401