1 /* 2 * wm8960.c -- WM8960 ALSA SoC Audio driver 3 * 4 * Copyright 2007-11 Wolfson Microelectronics, plc 5 * 6 * Author: Liam Girdwood 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 */ 12 13 #include <linux/module.h> 14 #include <linux/moduleparam.h> 15 #include <linux/init.h> 16 #include <linux/delay.h> 17 #include <linux/pm.h> 18 #include <linux/i2c.h> 19 #include <linux/slab.h> 20 #include <sound/core.h> 21 #include <sound/pcm.h> 22 #include <sound/pcm_params.h> 23 #include <sound/soc.h> 24 #include <sound/initval.h> 25 #include <sound/tlv.h> 26 #include <sound/wm8960.h> 27 28 #include "wm8960.h" 29 30 /* R25 - Power 1 */ 31 #define WM8960_VMID_MASK 0x180 32 #define WM8960_VREF 0x40 33 34 /* R26 - Power 2 */ 35 #define WM8960_PWR2_LOUT1 0x40 36 #define WM8960_PWR2_ROUT1 0x20 37 #define WM8960_PWR2_OUT3 0x02 38 39 /* R28 - Anti-pop 1 */ 40 #define WM8960_POBCTRL 0x80 41 #define WM8960_BUFDCOPEN 0x10 42 #define WM8960_BUFIOEN 0x08 43 #define WM8960_SOFT_ST 0x04 44 #define WM8960_HPSTBY 0x01 45 46 /* R29 - Anti-pop 2 */ 47 #define WM8960_DISOP 0x40 48 #define WM8960_DRES_MASK 0x30 49 50 /* 51 * wm8960 register cache 52 * We can't read the WM8960 register space when we are 53 * using 2 wire for device control, so we cache them instead. 54 */ 55 static const struct reg_default wm8960_reg_defaults[] = { 56 { 0x0, 0x00a7 }, 57 { 0x1, 0x00a7 }, 58 { 0x2, 0x0000 }, 59 { 0x3, 0x0000 }, 60 { 0x4, 0x0000 }, 61 { 0x5, 0x0008 }, 62 { 0x6, 0x0000 }, 63 { 0x7, 0x000a }, 64 { 0x8, 0x01c0 }, 65 { 0x9, 0x0000 }, 66 { 0xa, 0x00ff }, 67 { 0xb, 0x00ff }, 68 69 { 0x10, 0x0000 }, 70 { 0x11, 0x007b }, 71 { 0x12, 0x0100 }, 72 { 0x13, 0x0032 }, 73 { 0x14, 0x0000 }, 74 { 0x15, 0x00c3 }, 75 { 0x16, 0x00c3 }, 76 { 0x17, 0x01c0 }, 77 { 0x18, 0x0000 }, 78 { 0x19, 0x0000 }, 79 { 0x1a, 0x0000 }, 80 { 0x1b, 0x0000 }, 81 { 0x1c, 0x0000 }, 82 { 0x1d, 0x0000 }, 83 84 { 0x20, 0x0100 }, 85 { 0x21, 0x0100 }, 86 { 0x22, 0x0050 }, 87 88 { 0x25, 0x0050 }, 89 { 0x26, 0x0000 }, 90 { 0x27, 0x0000 }, 91 { 0x28, 0x0000 }, 92 { 0x29, 0x0000 }, 93 { 0x2a, 0x0040 }, 94 { 0x2b, 0x0000 }, 95 { 0x2c, 0x0000 }, 96 { 0x2d, 0x0050 }, 97 { 0x2e, 0x0050 }, 98 { 0x2f, 0x0000 }, 99 { 0x30, 0x0002 }, 100 { 0x31, 0x0037 }, 101 102 { 0x33, 0x0080 }, 103 { 0x34, 0x0008 }, 104 { 0x35, 0x0031 }, 105 { 0x36, 0x0026 }, 106 { 0x37, 0x00e9 }, 107 }; 108 109 static bool wm8960_volatile(struct device *dev, unsigned int reg) 110 { 111 switch (reg) { 112 case WM8960_RESET: 113 return true; 114 default: 115 return false; 116 } 117 } 118 119 struct wm8960_priv { 120 struct regmap *regmap; 121 int (*set_bias_level)(struct snd_soc_codec *, 122 enum snd_soc_bias_level level); 123 struct snd_soc_dapm_widget *lout1; 124 struct snd_soc_dapm_widget *rout1; 125 struct snd_soc_dapm_widget *out3; 126 bool deemph; 127 int playback_fs; 128 }; 129 130 #define wm8960_reset(c) snd_soc_write(c, WM8960_RESET, 0) 131 132 /* enumerated controls */ 133 static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted", 134 "Right Inverted", "Stereo Inversion"}; 135 static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"}; 136 static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"}; 137 static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"}; 138 static const char *wm8960_alcmode[] = {"ALC", "Limiter"}; 139 140 static const struct soc_enum wm8960_enum[] = { 141 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity), 142 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity), 143 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff), 144 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff), 145 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc), 146 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode), 147 }; 148 149 static const int deemph_settings[] = { 0, 32000, 44100, 48000 }; 150 151 static int wm8960_set_deemph(struct snd_soc_codec *codec) 152 { 153 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 154 int val, i, best; 155 156 /* If we're using deemphasis select the nearest available sample 157 * rate. 158 */ 159 if (wm8960->deemph) { 160 best = 1; 161 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) { 162 if (abs(deemph_settings[i] - wm8960->playback_fs) < 163 abs(deemph_settings[best] - wm8960->playback_fs)) 164 best = i; 165 } 166 167 val = best << 1; 168 } else { 169 val = 0; 170 } 171 172 dev_dbg(codec->dev, "Set deemphasis %d\n", val); 173 174 return snd_soc_update_bits(codec, WM8960_DACCTL1, 175 0x6, val); 176 } 177 178 static int wm8960_get_deemph(struct snd_kcontrol *kcontrol, 179 struct snd_ctl_elem_value *ucontrol) 180 { 181 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 182 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 183 184 ucontrol->value.enumerated.item[0] = wm8960->deemph; 185 return 0; 186 } 187 188 static int wm8960_put_deemph(struct snd_kcontrol *kcontrol, 189 struct snd_ctl_elem_value *ucontrol) 190 { 191 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 192 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 193 int deemph = ucontrol->value.enumerated.item[0]; 194 195 if (deemph > 1) 196 return -EINVAL; 197 198 wm8960->deemph = deemph; 199 200 return wm8960_set_deemph(codec); 201 } 202 203 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0); 204 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1); 205 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0); 206 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); 207 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1); 208 209 static const struct snd_kcontrol_new wm8960_snd_controls[] = { 210 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL, 211 0, 63, 0, adc_tlv), 212 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL, 213 6, 1, 0), 214 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL, 215 7, 1, 0), 216 217 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume", 218 WM8960_INBMIX1, 4, 7, 0, boost_tlv), 219 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume", 220 WM8960_INBMIX1, 1, 7, 0, boost_tlv), 221 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume", 222 WM8960_INBMIX2, 4, 7, 0, boost_tlv), 223 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume", 224 WM8960_INBMIX2, 1, 7, 0, boost_tlv), 225 226 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC, 227 0, 255, 0, dac_tlv), 228 229 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1, 230 0, 127, 0, out_tlv), 231 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1, 232 7, 1, 0), 233 234 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2, 235 0, 127, 0, out_tlv), 236 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2, 237 7, 1, 0), 238 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0), 239 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0), 240 241 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0), 242 SOC_ENUM("ADC Polarity", wm8960_enum[0]), 243 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0), 244 245 SOC_ENUM("DAC Polarity", wm8960_enum[2]), 246 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0, 247 wm8960_get_deemph, wm8960_put_deemph), 248 249 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]), 250 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]), 251 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0), 252 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0), 253 254 SOC_ENUM("ALC Function", wm8960_enum[4]), 255 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0), 256 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1), 257 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0), 258 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0), 259 SOC_ENUM("ALC Mode", wm8960_enum[5]), 260 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0), 261 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0), 262 263 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0), 264 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0), 265 266 SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC, 267 0, 255, 0, adc_tlv), 268 269 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume", 270 WM8960_BYPASS1, 4, 7, 1, bypass_tlv), 271 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume", 272 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv), 273 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume", 274 WM8960_BYPASS2, 4, 7, 1, bypass_tlv), 275 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume", 276 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv), 277 }; 278 279 static const struct snd_kcontrol_new wm8960_lin_boost[] = { 280 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0), 281 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0), 282 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0), 283 }; 284 285 static const struct snd_kcontrol_new wm8960_lin[] = { 286 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0), 287 }; 288 289 static const struct snd_kcontrol_new wm8960_rin_boost[] = { 290 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0), 291 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0), 292 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0), 293 }; 294 295 static const struct snd_kcontrol_new wm8960_rin[] = { 296 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0), 297 }; 298 299 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = { 300 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0), 301 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0), 302 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0), 303 }; 304 305 static const struct snd_kcontrol_new wm8960_routput_mixer[] = { 306 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0), 307 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0), 308 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0), 309 }; 310 311 static const struct snd_kcontrol_new wm8960_mono_out[] = { 312 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0), 313 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0), 314 }; 315 316 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = { 317 SND_SOC_DAPM_INPUT("LINPUT1"), 318 SND_SOC_DAPM_INPUT("RINPUT1"), 319 SND_SOC_DAPM_INPUT("LINPUT2"), 320 SND_SOC_DAPM_INPUT("RINPUT2"), 321 SND_SOC_DAPM_INPUT("LINPUT3"), 322 SND_SOC_DAPM_INPUT("RINPUT3"), 323 324 SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0), 325 326 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0, 327 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)), 328 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0, 329 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)), 330 331 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0, 332 wm8960_lin, ARRAY_SIZE(wm8960_lin)), 333 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0, 334 wm8960_rin, ARRAY_SIZE(wm8960_rin)), 335 336 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0), 337 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0), 338 339 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0), 340 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0), 341 342 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0, 343 &wm8960_loutput_mixer[0], 344 ARRAY_SIZE(wm8960_loutput_mixer)), 345 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0, 346 &wm8960_routput_mixer[0], 347 ARRAY_SIZE(wm8960_routput_mixer)), 348 349 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0), 350 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0), 351 352 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0), 353 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0), 354 355 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0), 356 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0), 357 358 SND_SOC_DAPM_OUTPUT("SPK_LP"), 359 SND_SOC_DAPM_OUTPUT("SPK_LN"), 360 SND_SOC_DAPM_OUTPUT("HP_L"), 361 SND_SOC_DAPM_OUTPUT("HP_R"), 362 SND_SOC_DAPM_OUTPUT("SPK_RP"), 363 SND_SOC_DAPM_OUTPUT("SPK_RN"), 364 SND_SOC_DAPM_OUTPUT("OUT3"), 365 }; 366 367 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = { 368 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0, 369 &wm8960_mono_out[0], 370 ARRAY_SIZE(wm8960_mono_out)), 371 }; 372 373 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */ 374 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = { 375 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0), 376 }; 377 378 static const struct snd_soc_dapm_route audio_paths[] = { 379 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" }, 380 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" }, 381 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" }, 382 383 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", }, 384 { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */ 385 { "Left Input Mixer", NULL, "LINPUT2" }, 386 { "Left Input Mixer", NULL, "LINPUT3" }, 387 388 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" }, 389 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" }, 390 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" }, 391 392 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", }, 393 { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */ 394 { "Right Input Mixer", NULL, "RINPUT2" }, 395 { "Right Input Mixer", NULL, "LINPUT3" }, 396 397 { "Left ADC", NULL, "Left Input Mixer" }, 398 { "Right ADC", NULL, "Right Input Mixer" }, 399 400 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" }, 401 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} , 402 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" }, 403 404 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" }, 405 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } , 406 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" }, 407 408 { "LOUT1 PGA", NULL, "Left Output Mixer" }, 409 { "ROUT1 PGA", NULL, "Right Output Mixer" }, 410 411 { "HP_L", NULL, "LOUT1 PGA" }, 412 { "HP_R", NULL, "ROUT1 PGA" }, 413 414 { "Left Speaker PGA", NULL, "Left Output Mixer" }, 415 { "Right Speaker PGA", NULL, "Right Output Mixer" }, 416 417 { "Left Speaker Output", NULL, "Left Speaker PGA" }, 418 { "Right Speaker Output", NULL, "Right Speaker PGA" }, 419 420 { "SPK_LN", NULL, "Left Speaker Output" }, 421 { "SPK_LP", NULL, "Left Speaker Output" }, 422 { "SPK_RN", NULL, "Right Speaker Output" }, 423 { "SPK_RP", NULL, "Right Speaker Output" }, 424 }; 425 426 static const struct snd_soc_dapm_route audio_paths_out3[] = { 427 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" }, 428 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" }, 429 430 { "OUT3", NULL, "Mono Output Mixer", } 431 }; 432 433 static const struct snd_soc_dapm_route audio_paths_capless[] = { 434 { "HP_L", NULL, "OUT3 VMID" }, 435 { "HP_R", NULL, "OUT3 VMID" }, 436 437 { "OUT3 VMID", NULL, "Left Output Mixer" }, 438 { "OUT3 VMID", NULL, "Right Output Mixer" }, 439 }; 440 441 static int wm8960_add_widgets(struct snd_soc_codec *codec) 442 { 443 struct wm8960_data *pdata = codec->dev->platform_data; 444 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 445 struct snd_soc_dapm_context *dapm = &codec->dapm; 446 struct snd_soc_dapm_widget *w; 447 448 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets, 449 ARRAY_SIZE(wm8960_dapm_widgets)); 450 451 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths)); 452 453 /* In capless mode OUT3 is used to provide VMID for the 454 * headphone outputs, otherwise it is used as a mono mixer. 455 */ 456 if (pdata && pdata->capless) { 457 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless, 458 ARRAY_SIZE(wm8960_dapm_widgets_capless)); 459 460 snd_soc_dapm_add_routes(dapm, audio_paths_capless, 461 ARRAY_SIZE(audio_paths_capless)); 462 } else { 463 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3, 464 ARRAY_SIZE(wm8960_dapm_widgets_out3)); 465 466 snd_soc_dapm_add_routes(dapm, audio_paths_out3, 467 ARRAY_SIZE(audio_paths_out3)); 468 } 469 470 /* We need to power up the headphone output stage out of 471 * sequence for capless mode. To save scanning the widget 472 * list each time to find the desired power state do so now 473 * and save the result. 474 */ 475 list_for_each_entry(w, &codec->component.card->widgets, list) { 476 if (w->dapm != &codec->dapm) 477 continue; 478 if (strcmp(w->name, "LOUT1 PGA") == 0) 479 wm8960->lout1 = w; 480 if (strcmp(w->name, "ROUT1 PGA") == 0) 481 wm8960->rout1 = w; 482 if (strcmp(w->name, "OUT3 VMID") == 0) 483 wm8960->out3 = w; 484 } 485 486 return 0; 487 } 488 489 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai, 490 unsigned int fmt) 491 { 492 struct snd_soc_codec *codec = codec_dai->codec; 493 u16 iface = 0; 494 495 /* set master/slave audio interface */ 496 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 497 case SND_SOC_DAIFMT_CBM_CFM: 498 iface |= 0x0040; 499 break; 500 case SND_SOC_DAIFMT_CBS_CFS: 501 break; 502 default: 503 return -EINVAL; 504 } 505 506 /* interface format */ 507 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 508 case SND_SOC_DAIFMT_I2S: 509 iface |= 0x0002; 510 break; 511 case SND_SOC_DAIFMT_RIGHT_J: 512 break; 513 case SND_SOC_DAIFMT_LEFT_J: 514 iface |= 0x0001; 515 break; 516 case SND_SOC_DAIFMT_DSP_A: 517 iface |= 0x0003; 518 break; 519 case SND_SOC_DAIFMT_DSP_B: 520 iface |= 0x0013; 521 break; 522 default: 523 return -EINVAL; 524 } 525 526 /* clock inversion */ 527 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 528 case SND_SOC_DAIFMT_NB_NF: 529 break; 530 case SND_SOC_DAIFMT_IB_IF: 531 iface |= 0x0090; 532 break; 533 case SND_SOC_DAIFMT_IB_NF: 534 iface |= 0x0080; 535 break; 536 case SND_SOC_DAIFMT_NB_IF: 537 iface |= 0x0010; 538 break; 539 default: 540 return -EINVAL; 541 } 542 543 /* set iface */ 544 snd_soc_write(codec, WM8960_IFACE1, iface); 545 return 0; 546 } 547 548 static struct { 549 int rate; 550 unsigned int val; 551 } alc_rates[] = { 552 { 48000, 0 }, 553 { 44100, 0 }, 554 { 32000, 1 }, 555 { 22050, 2 }, 556 { 24000, 2 }, 557 { 16000, 3 }, 558 { 11250, 4 }, 559 { 12000, 4 }, 560 { 8000, 5 }, 561 }; 562 563 static int wm8960_hw_params(struct snd_pcm_substream *substream, 564 struct snd_pcm_hw_params *params, 565 struct snd_soc_dai *dai) 566 { 567 struct snd_soc_codec *codec = dai->codec; 568 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 569 u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3; 570 int i; 571 572 /* bit size */ 573 switch (params_width(params)) { 574 case 16: 575 break; 576 case 20: 577 iface |= 0x0004; 578 break; 579 case 24: 580 iface |= 0x0008; 581 break; 582 default: 583 dev_err(codec->dev, "unsupported width %d\n", 584 params_width(params)); 585 return -EINVAL; 586 } 587 588 /* Update filters for the new rate */ 589 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 590 wm8960->playback_fs = params_rate(params); 591 wm8960_set_deemph(codec); 592 } else { 593 for (i = 0; i < ARRAY_SIZE(alc_rates); i++) 594 if (alc_rates[i].rate == params_rate(params)) 595 snd_soc_update_bits(codec, 596 WM8960_ADDCTL3, 0x7, 597 alc_rates[i].val); 598 } 599 600 /* set iface */ 601 snd_soc_write(codec, WM8960_IFACE1, iface); 602 return 0; 603 } 604 605 static int wm8960_mute(struct snd_soc_dai *dai, int mute) 606 { 607 struct snd_soc_codec *codec = dai->codec; 608 609 if (mute) 610 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8); 611 else 612 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0); 613 return 0; 614 } 615 616 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec, 617 enum snd_soc_bias_level level) 618 { 619 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 620 621 switch (level) { 622 case SND_SOC_BIAS_ON: 623 break; 624 625 case SND_SOC_BIAS_PREPARE: 626 /* Set VMID to 2x50k */ 627 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80); 628 break; 629 630 case SND_SOC_BIAS_STANDBY: 631 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { 632 regcache_sync(wm8960->regmap); 633 634 /* Enable anti-pop features */ 635 snd_soc_write(codec, WM8960_APOP1, 636 WM8960_POBCTRL | WM8960_SOFT_ST | 637 WM8960_BUFDCOPEN | WM8960_BUFIOEN); 638 639 /* Enable & ramp VMID at 2x50k */ 640 snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80); 641 msleep(100); 642 643 /* Enable VREF */ 644 snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF, 645 WM8960_VREF); 646 647 /* Disable anti-pop features */ 648 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN); 649 } 650 651 /* Set VMID to 2x250k */ 652 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100); 653 break; 654 655 case SND_SOC_BIAS_OFF: 656 /* Enable anti-pop features */ 657 snd_soc_write(codec, WM8960_APOP1, 658 WM8960_POBCTRL | WM8960_SOFT_ST | 659 WM8960_BUFDCOPEN | WM8960_BUFIOEN); 660 661 /* Disable VMID and VREF, let them discharge */ 662 snd_soc_write(codec, WM8960_POWER1, 0); 663 msleep(600); 664 break; 665 } 666 667 codec->dapm.bias_level = level; 668 669 return 0; 670 } 671 672 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec, 673 enum snd_soc_bias_level level) 674 { 675 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 676 int reg; 677 678 switch (level) { 679 case SND_SOC_BIAS_ON: 680 break; 681 682 case SND_SOC_BIAS_PREPARE: 683 switch (codec->dapm.bias_level) { 684 case SND_SOC_BIAS_STANDBY: 685 /* Enable anti pop mode */ 686 snd_soc_update_bits(codec, WM8960_APOP1, 687 WM8960_POBCTRL | WM8960_SOFT_ST | 688 WM8960_BUFDCOPEN, 689 WM8960_POBCTRL | WM8960_SOFT_ST | 690 WM8960_BUFDCOPEN); 691 692 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */ 693 reg = 0; 694 if (wm8960->lout1 && wm8960->lout1->power) 695 reg |= WM8960_PWR2_LOUT1; 696 if (wm8960->rout1 && wm8960->rout1->power) 697 reg |= WM8960_PWR2_ROUT1; 698 if (wm8960->out3 && wm8960->out3->power) 699 reg |= WM8960_PWR2_OUT3; 700 snd_soc_update_bits(codec, WM8960_POWER2, 701 WM8960_PWR2_LOUT1 | 702 WM8960_PWR2_ROUT1 | 703 WM8960_PWR2_OUT3, reg); 704 705 /* Enable VMID at 2*50k */ 706 snd_soc_update_bits(codec, WM8960_POWER1, 707 WM8960_VMID_MASK, 0x80); 708 709 /* Ramp */ 710 msleep(100); 711 712 /* Enable VREF */ 713 snd_soc_update_bits(codec, WM8960_POWER1, 714 WM8960_VREF, WM8960_VREF); 715 716 msleep(100); 717 break; 718 719 case SND_SOC_BIAS_ON: 720 /* Enable anti-pop mode */ 721 snd_soc_update_bits(codec, WM8960_APOP1, 722 WM8960_POBCTRL | WM8960_SOFT_ST | 723 WM8960_BUFDCOPEN, 724 WM8960_POBCTRL | WM8960_SOFT_ST | 725 WM8960_BUFDCOPEN); 726 727 /* Disable VMID and VREF */ 728 snd_soc_update_bits(codec, WM8960_POWER1, 729 WM8960_VREF | WM8960_VMID_MASK, 0); 730 break; 731 732 case SND_SOC_BIAS_OFF: 733 regcache_sync(wm8960->regmap); 734 break; 735 default: 736 break; 737 } 738 break; 739 740 case SND_SOC_BIAS_STANDBY: 741 switch (codec->dapm.bias_level) { 742 case SND_SOC_BIAS_PREPARE: 743 /* Disable HP discharge */ 744 snd_soc_update_bits(codec, WM8960_APOP2, 745 WM8960_DISOP | WM8960_DRES_MASK, 746 0); 747 748 /* Disable anti-pop features */ 749 snd_soc_update_bits(codec, WM8960_APOP1, 750 WM8960_POBCTRL | WM8960_SOFT_ST | 751 WM8960_BUFDCOPEN, 752 WM8960_POBCTRL | WM8960_SOFT_ST | 753 WM8960_BUFDCOPEN); 754 break; 755 756 default: 757 break; 758 } 759 break; 760 761 case SND_SOC_BIAS_OFF: 762 break; 763 } 764 765 codec->dapm.bias_level = level; 766 767 return 0; 768 } 769 770 /* PLL divisors */ 771 struct _pll_div { 772 u32 pre_div:1; 773 u32 n:4; 774 u32 k:24; 775 }; 776 777 /* The size in bits of the pll divide multiplied by 10 778 * to allow rounding later */ 779 #define FIXED_PLL_SIZE ((1 << 24) * 10) 780 781 static int pll_factors(unsigned int source, unsigned int target, 782 struct _pll_div *pll_div) 783 { 784 unsigned long long Kpart; 785 unsigned int K, Ndiv, Nmod; 786 787 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target); 788 789 /* Scale up target to PLL operating frequency */ 790 target *= 4; 791 792 Ndiv = target / source; 793 if (Ndiv < 6) { 794 source >>= 1; 795 pll_div->pre_div = 1; 796 Ndiv = target / source; 797 } else 798 pll_div->pre_div = 0; 799 800 if ((Ndiv < 6) || (Ndiv > 12)) { 801 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv); 802 return -EINVAL; 803 } 804 805 pll_div->n = Ndiv; 806 Nmod = target % source; 807 Kpart = FIXED_PLL_SIZE * (long long)Nmod; 808 809 do_div(Kpart, source); 810 811 K = Kpart & 0xFFFFFFFF; 812 813 /* Check if we need to round */ 814 if ((K % 10) >= 5) 815 K += 5; 816 817 /* Move down to proper range now rounding is done */ 818 K /= 10; 819 820 pll_div->k = K; 821 822 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n", 823 pll_div->n, pll_div->k, pll_div->pre_div); 824 825 return 0; 826 } 827 828 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, 829 int source, unsigned int freq_in, unsigned int freq_out) 830 { 831 struct snd_soc_codec *codec = codec_dai->codec; 832 u16 reg; 833 static struct _pll_div pll_div; 834 int ret; 835 836 if (freq_in && freq_out) { 837 ret = pll_factors(freq_in, freq_out, &pll_div); 838 if (ret != 0) 839 return ret; 840 } 841 842 /* Disable the PLL: even if we are changing the frequency the 843 * PLL needs to be disabled while we do so. */ 844 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0); 845 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0); 846 847 if (!freq_in || !freq_out) 848 return 0; 849 850 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f; 851 reg |= pll_div.pre_div << 4; 852 reg |= pll_div.n; 853 854 if (pll_div.k) { 855 reg |= 0x20; 856 857 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 16) & 0xff); 858 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 8) & 0xff); 859 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0xff); 860 } 861 snd_soc_write(codec, WM8960_PLL1, reg); 862 863 /* Turn it on */ 864 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1); 865 msleep(250); 866 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1); 867 868 return 0; 869 } 870 871 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai, 872 int div_id, int div) 873 { 874 struct snd_soc_codec *codec = codec_dai->codec; 875 u16 reg; 876 877 switch (div_id) { 878 case WM8960_SYSCLKDIV: 879 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9; 880 snd_soc_write(codec, WM8960_CLOCK1, reg | div); 881 break; 882 case WM8960_DACDIV: 883 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7; 884 snd_soc_write(codec, WM8960_CLOCK1, reg | div); 885 break; 886 case WM8960_OPCLKDIV: 887 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f; 888 snd_soc_write(codec, WM8960_PLL1, reg | div); 889 break; 890 case WM8960_DCLKDIV: 891 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f; 892 snd_soc_write(codec, WM8960_CLOCK2, reg | div); 893 break; 894 case WM8960_TOCLKSEL: 895 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd; 896 snd_soc_write(codec, WM8960_ADDCTL1, reg | div); 897 break; 898 default: 899 return -EINVAL; 900 } 901 902 return 0; 903 } 904 905 static int wm8960_set_bias_level(struct snd_soc_codec *codec, 906 enum snd_soc_bias_level level) 907 { 908 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 909 910 return wm8960->set_bias_level(codec, level); 911 } 912 913 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000 914 915 #define WM8960_FORMATS \ 916 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 917 SNDRV_PCM_FMTBIT_S24_LE) 918 919 static const struct snd_soc_dai_ops wm8960_dai_ops = { 920 .hw_params = wm8960_hw_params, 921 .digital_mute = wm8960_mute, 922 .set_fmt = wm8960_set_dai_fmt, 923 .set_clkdiv = wm8960_set_dai_clkdiv, 924 .set_pll = wm8960_set_dai_pll, 925 }; 926 927 static struct snd_soc_dai_driver wm8960_dai = { 928 .name = "wm8960-hifi", 929 .playback = { 930 .stream_name = "Playback", 931 .channels_min = 1, 932 .channels_max = 2, 933 .rates = WM8960_RATES, 934 .formats = WM8960_FORMATS,}, 935 .capture = { 936 .stream_name = "Capture", 937 .channels_min = 1, 938 .channels_max = 2, 939 .rates = WM8960_RATES, 940 .formats = WM8960_FORMATS,}, 941 .ops = &wm8960_dai_ops, 942 .symmetric_rates = 1, 943 }; 944 945 static int wm8960_suspend(struct snd_soc_codec *codec) 946 { 947 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 948 949 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF); 950 return 0; 951 } 952 953 static int wm8960_resume(struct snd_soc_codec *codec) 954 { 955 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 956 957 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY); 958 return 0; 959 } 960 961 static int wm8960_probe(struct snd_soc_codec *codec) 962 { 963 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 964 struct wm8960_data *pdata = dev_get_platdata(codec->dev); 965 int ret; 966 967 wm8960->set_bias_level = wm8960_set_bias_level_out3; 968 969 if (!pdata) { 970 dev_warn(codec->dev, "No platform data supplied\n"); 971 } else { 972 if (pdata->capless) 973 wm8960->set_bias_level = wm8960_set_bias_level_capless; 974 } 975 976 ret = wm8960_reset(codec); 977 if (ret < 0) { 978 dev_err(codec->dev, "Failed to issue reset\n"); 979 return ret; 980 } 981 982 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY); 983 984 /* Latch the update bits */ 985 snd_soc_update_bits(codec, WM8960_LINVOL, 0x100, 0x100); 986 snd_soc_update_bits(codec, WM8960_RINVOL, 0x100, 0x100); 987 snd_soc_update_bits(codec, WM8960_LADC, 0x100, 0x100); 988 snd_soc_update_bits(codec, WM8960_RADC, 0x100, 0x100); 989 snd_soc_update_bits(codec, WM8960_LDAC, 0x100, 0x100); 990 snd_soc_update_bits(codec, WM8960_RDAC, 0x100, 0x100); 991 snd_soc_update_bits(codec, WM8960_LOUT1, 0x100, 0x100); 992 snd_soc_update_bits(codec, WM8960_ROUT1, 0x100, 0x100); 993 snd_soc_update_bits(codec, WM8960_LOUT2, 0x100, 0x100); 994 snd_soc_update_bits(codec, WM8960_ROUT2, 0x100, 0x100); 995 996 snd_soc_add_codec_controls(codec, wm8960_snd_controls, 997 ARRAY_SIZE(wm8960_snd_controls)); 998 wm8960_add_widgets(codec); 999 1000 return 0; 1001 } 1002 1003 /* power down chip */ 1004 static int wm8960_remove(struct snd_soc_codec *codec) 1005 { 1006 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 1007 1008 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF); 1009 return 0; 1010 } 1011 1012 static struct snd_soc_codec_driver soc_codec_dev_wm8960 = { 1013 .probe = wm8960_probe, 1014 .remove = wm8960_remove, 1015 .suspend = wm8960_suspend, 1016 .resume = wm8960_resume, 1017 .set_bias_level = wm8960_set_bias_level, 1018 }; 1019 1020 static const struct regmap_config wm8960_regmap = { 1021 .reg_bits = 7, 1022 .val_bits = 9, 1023 .max_register = WM8960_PLL4, 1024 1025 .reg_defaults = wm8960_reg_defaults, 1026 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults), 1027 .cache_type = REGCACHE_RBTREE, 1028 1029 .volatile_reg = wm8960_volatile, 1030 }; 1031 1032 static int wm8960_i2c_probe(struct i2c_client *i2c, 1033 const struct i2c_device_id *id) 1034 { 1035 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev); 1036 struct wm8960_priv *wm8960; 1037 int ret; 1038 1039 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv), 1040 GFP_KERNEL); 1041 if (wm8960 == NULL) 1042 return -ENOMEM; 1043 1044 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap); 1045 if (IS_ERR(wm8960->regmap)) 1046 return PTR_ERR(wm8960->regmap); 1047 1048 if (pdata && pdata->shared_lrclk) { 1049 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2, 1050 0x4, 0x4); 1051 if (ret != 0) { 1052 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n", 1053 ret); 1054 return ret; 1055 } 1056 } 1057 1058 i2c_set_clientdata(i2c, wm8960); 1059 1060 ret = snd_soc_register_codec(&i2c->dev, 1061 &soc_codec_dev_wm8960, &wm8960_dai, 1); 1062 1063 return ret; 1064 } 1065 1066 static int wm8960_i2c_remove(struct i2c_client *client) 1067 { 1068 snd_soc_unregister_codec(&client->dev); 1069 return 0; 1070 } 1071 1072 static const struct i2c_device_id wm8960_i2c_id[] = { 1073 { "wm8960", 0 }, 1074 { } 1075 }; 1076 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id); 1077 1078 static struct i2c_driver wm8960_i2c_driver = { 1079 .driver = { 1080 .name = "wm8960", 1081 .owner = THIS_MODULE, 1082 }, 1083 .probe = wm8960_i2c_probe, 1084 .remove = wm8960_i2c_remove, 1085 .id_table = wm8960_i2c_id, 1086 }; 1087 1088 module_i2c_driver(wm8960_i2c_driver); 1089 1090 MODULE_DESCRIPTION("ASoC WM8960 driver"); 1091 MODULE_AUTHOR("Liam Girdwood"); 1092 MODULE_LICENSE("GPL"); 1093