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->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 snd_pcm_format_t format = params_format(params); 571 int i; 572 573 /* bit size */ 574 switch (format) { 575 case SNDRV_PCM_FORMAT_S16_LE: 576 case SNDRV_PCM_FORMAT_S16_BE: 577 break; 578 case SNDRV_PCM_FORMAT_S20_3LE: 579 case SNDRV_PCM_FORMAT_S20_3BE: 580 iface |= 0x0004; 581 break; 582 case SNDRV_PCM_FORMAT_S24_LE: 583 case SNDRV_PCM_FORMAT_S24_BE: 584 iface |= 0x0008; 585 break; 586 default: 587 dev_err(codec->dev, "unsupported format %i\n", format); 588 return -EINVAL; 589 } 590 591 /* Update filters for the new rate */ 592 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 593 wm8960->playback_fs = params_rate(params); 594 wm8960_set_deemph(codec); 595 } else { 596 for (i = 0; i < ARRAY_SIZE(alc_rates); i++) 597 if (alc_rates[i].rate == params_rate(params)) 598 snd_soc_update_bits(codec, 599 WM8960_ADDCTL3, 0x7, 600 alc_rates[i].val); 601 } 602 603 /* set iface */ 604 snd_soc_write(codec, WM8960_IFACE1, iface); 605 return 0; 606 } 607 608 static int wm8960_mute(struct snd_soc_dai *dai, int mute) 609 { 610 struct snd_soc_codec *codec = dai->codec; 611 612 if (mute) 613 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8); 614 else 615 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0); 616 return 0; 617 } 618 619 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec, 620 enum snd_soc_bias_level level) 621 { 622 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 623 624 switch (level) { 625 case SND_SOC_BIAS_ON: 626 break; 627 628 case SND_SOC_BIAS_PREPARE: 629 /* Set VMID to 2x50k */ 630 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80); 631 break; 632 633 case SND_SOC_BIAS_STANDBY: 634 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { 635 regcache_sync(wm8960->regmap); 636 637 /* Enable anti-pop features */ 638 snd_soc_write(codec, WM8960_APOP1, 639 WM8960_POBCTRL | WM8960_SOFT_ST | 640 WM8960_BUFDCOPEN | WM8960_BUFIOEN); 641 642 /* Enable & ramp VMID at 2x50k */ 643 snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80); 644 msleep(100); 645 646 /* Enable VREF */ 647 snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF, 648 WM8960_VREF); 649 650 /* Disable anti-pop features */ 651 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN); 652 } 653 654 /* Set VMID to 2x250k */ 655 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100); 656 break; 657 658 case SND_SOC_BIAS_OFF: 659 /* Enable anti-pop features */ 660 snd_soc_write(codec, WM8960_APOP1, 661 WM8960_POBCTRL | WM8960_SOFT_ST | 662 WM8960_BUFDCOPEN | WM8960_BUFIOEN); 663 664 /* Disable VMID and VREF, let them discharge */ 665 snd_soc_write(codec, WM8960_POWER1, 0); 666 msleep(600); 667 break; 668 } 669 670 codec->dapm.bias_level = level; 671 672 return 0; 673 } 674 675 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec, 676 enum snd_soc_bias_level level) 677 { 678 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 679 int reg; 680 681 switch (level) { 682 case SND_SOC_BIAS_ON: 683 break; 684 685 case SND_SOC_BIAS_PREPARE: 686 switch (codec->dapm.bias_level) { 687 case SND_SOC_BIAS_STANDBY: 688 /* Enable anti pop mode */ 689 snd_soc_update_bits(codec, WM8960_APOP1, 690 WM8960_POBCTRL | WM8960_SOFT_ST | 691 WM8960_BUFDCOPEN, 692 WM8960_POBCTRL | WM8960_SOFT_ST | 693 WM8960_BUFDCOPEN); 694 695 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */ 696 reg = 0; 697 if (wm8960->lout1 && wm8960->lout1->power) 698 reg |= WM8960_PWR2_LOUT1; 699 if (wm8960->rout1 && wm8960->rout1->power) 700 reg |= WM8960_PWR2_ROUT1; 701 if (wm8960->out3 && wm8960->out3->power) 702 reg |= WM8960_PWR2_OUT3; 703 snd_soc_update_bits(codec, WM8960_POWER2, 704 WM8960_PWR2_LOUT1 | 705 WM8960_PWR2_ROUT1 | 706 WM8960_PWR2_OUT3, reg); 707 708 /* Enable VMID at 2*50k */ 709 snd_soc_update_bits(codec, WM8960_POWER1, 710 WM8960_VMID_MASK, 0x80); 711 712 /* Ramp */ 713 msleep(100); 714 715 /* Enable VREF */ 716 snd_soc_update_bits(codec, WM8960_POWER1, 717 WM8960_VREF, WM8960_VREF); 718 719 msleep(100); 720 break; 721 722 case SND_SOC_BIAS_ON: 723 /* Enable anti-pop mode */ 724 snd_soc_update_bits(codec, WM8960_APOP1, 725 WM8960_POBCTRL | WM8960_SOFT_ST | 726 WM8960_BUFDCOPEN, 727 WM8960_POBCTRL | WM8960_SOFT_ST | 728 WM8960_BUFDCOPEN); 729 730 /* Disable VMID and VREF */ 731 snd_soc_update_bits(codec, WM8960_POWER1, 732 WM8960_VREF | WM8960_VMID_MASK, 0); 733 break; 734 735 case SND_SOC_BIAS_OFF: 736 regcache_sync(wm8960->regmap); 737 break; 738 default: 739 break; 740 } 741 break; 742 743 case SND_SOC_BIAS_STANDBY: 744 switch (codec->dapm.bias_level) { 745 case SND_SOC_BIAS_PREPARE: 746 /* Disable HP discharge */ 747 snd_soc_update_bits(codec, WM8960_APOP2, 748 WM8960_DISOP | WM8960_DRES_MASK, 749 0); 750 751 /* Disable anti-pop features */ 752 snd_soc_update_bits(codec, WM8960_APOP1, 753 WM8960_POBCTRL | WM8960_SOFT_ST | 754 WM8960_BUFDCOPEN, 755 WM8960_POBCTRL | WM8960_SOFT_ST | 756 WM8960_BUFDCOPEN); 757 break; 758 759 default: 760 break; 761 } 762 break; 763 764 case SND_SOC_BIAS_OFF: 765 break; 766 } 767 768 codec->dapm.bias_level = level; 769 770 return 0; 771 } 772 773 /* PLL divisors */ 774 struct _pll_div { 775 u32 pre_div:1; 776 u32 n:4; 777 u32 k:24; 778 }; 779 780 /* The size in bits of the pll divide multiplied by 10 781 * to allow rounding later */ 782 #define FIXED_PLL_SIZE ((1 << 24) * 10) 783 784 static int pll_factors(unsigned int source, unsigned int target, 785 struct _pll_div *pll_div) 786 { 787 unsigned long long Kpart; 788 unsigned int K, Ndiv, Nmod; 789 790 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target); 791 792 /* Scale up target to PLL operating frequency */ 793 target *= 4; 794 795 Ndiv = target / source; 796 if (Ndiv < 6) { 797 source >>= 1; 798 pll_div->pre_div = 1; 799 Ndiv = target / source; 800 } else 801 pll_div->pre_div = 0; 802 803 if ((Ndiv < 6) || (Ndiv > 12)) { 804 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv); 805 return -EINVAL; 806 } 807 808 pll_div->n = Ndiv; 809 Nmod = target % source; 810 Kpart = FIXED_PLL_SIZE * (long long)Nmod; 811 812 do_div(Kpart, source); 813 814 K = Kpart & 0xFFFFFFFF; 815 816 /* Check if we need to round */ 817 if ((K % 10) >= 5) 818 K += 5; 819 820 /* Move down to proper range now rounding is done */ 821 K /= 10; 822 823 pll_div->k = K; 824 825 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n", 826 pll_div->n, pll_div->k, pll_div->pre_div); 827 828 return 0; 829 } 830 831 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, 832 int source, unsigned int freq_in, unsigned int freq_out) 833 { 834 struct snd_soc_codec *codec = codec_dai->codec; 835 u16 reg; 836 static struct _pll_div pll_div; 837 int ret; 838 839 if (freq_in && freq_out) { 840 ret = pll_factors(freq_in, freq_out, &pll_div); 841 if (ret != 0) 842 return ret; 843 } 844 845 /* Disable the PLL: even if we are changing the frequency the 846 * PLL needs to be disabled while we do so. */ 847 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0); 848 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0); 849 850 if (!freq_in || !freq_out) 851 return 0; 852 853 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f; 854 reg |= pll_div.pre_div << 4; 855 reg |= pll_div.n; 856 857 if (pll_div.k) { 858 reg |= 0x20; 859 860 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 16) & 0xff); 861 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 8) & 0xff); 862 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0xff); 863 } 864 snd_soc_write(codec, WM8960_PLL1, reg); 865 866 /* Turn it on */ 867 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1); 868 msleep(250); 869 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1); 870 871 return 0; 872 } 873 874 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai, 875 int div_id, int div) 876 { 877 struct snd_soc_codec *codec = codec_dai->codec; 878 u16 reg; 879 880 switch (div_id) { 881 case WM8960_SYSCLKDIV: 882 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9; 883 snd_soc_write(codec, WM8960_CLOCK1, reg | div); 884 break; 885 case WM8960_DACDIV: 886 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7; 887 snd_soc_write(codec, WM8960_CLOCK1, reg | div); 888 break; 889 case WM8960_OPCLKDIV: 890 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f; 891 snd_soc_write(codec, WM8960_PLL1, reg | div); 892 break; 893 case WM8960_DCLKDIV: 894 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f; 895 snd_soc_write(codec, WM8960_CLOCK2, reg | div); 896 break; 897 case WM8960_TOCLKSEL: 898 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd; 899 snd_soc_write(codec, WM8960_ADDCTL1, reg | div); 900 break; 901 default: 902 return -EINVAL; 903 } 904 905 return 0; 906 } 907 908 static int wm8960_set_bias_level(struct snd_soc_codec *codec, 909 enum snd_soc_bias_level level) 910 { 911 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 912 913 return wm8960->set_bias_level(codec, level); 914 } 915 916 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000 917 918 #define WM8960_FORMATS \ 919 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 920 SNDRV_PCM_FMTBIT_S24_LE) 921 922 static const struct snd_soc_dai_ops wm8960_dai_ops = { 923 .hw_params = wm8960_hw_params, 924 .digital_mute = wm8960_mute, 925 .set_fmt = wm8960_set_dai_fmt, 926 .set_clkdiv = wm8960_set_dai_clkdiv, 927 .set_pll = wm8960_set_dai_pll, 928 }; 929 930 static struct snd_soc_dai_driver wm8960_dai = { 931 .name = "wm8960-hifi", 932 .playback = { 933 .stream_name = "Playback", 934 .channels_min = 1, 935 .channels_max = 2, 936 .rates = WM8960_RATES, 937 .formats = WM8960_FORMATS,}, 938 .capture = { 939 .stream_name = "Capture", 940 .channels_min = 1, 941 .channels_max = 2, 942 .rates = WM8960_RATES, 943 .formats = WM8960_FORMATS,}, 944 .ops = &wm8960_dai_ops, 945 .symmetric_rates = 1, 946 }; 947 948 static int wm8960_suspend(struct snd_soc_codec *codec) 949 { 950 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 951 952 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF); 953 return 0; 954 } 955 956 static int wm8960_resume(struct snd_soc_codec *codec) 957 { 958 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 959 960 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY); 961 return 0; 962 } 963 964 static int wm8960_probe(struct snd_soc_codec *codec) 965 { 966 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 967 struct wm8960_data *pdata = dev_get_platdata(codec->dev); 968 int ret; 969 970 wm8960->set_bias_level = wm8960_set_bias_level_out3; 971 972 if (!pdata) { 973 dev_warn(codec->dev, "No platform data supplied\n"); 974 } else { 975 if (pdata->capless) 976 wm8960->set_bias_level = wm8960_set_bias_level_capless; 977 } 978 979 ret = wm8960_reset(codec); 980 if (ret < 0) { 981 dev_err(codec->dev, "Failed to issue reset\n"); 982 return ret; 983 } 984 985 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY); 986 987 /* Latch the update bits */ 988 snd_soc_update_bits(codec, WM8960_LINVOL, 0x100, 0x100); 989 snd_soc_update_bits(codec, WM8960_RINVOL, 0x100, 0x100); 990 snd_soc_update_bits(codec, WM8960_LADC, 0x100, 0x100); 991 snd_soc_update_bits(codec, WM8960_RADC, 0x100, 0x100); 992 snd_soc_update_bits(codec, WM8960_LDAC, 0x100, 0x100); 993 snd_soc_update_bits(codec, WM8960_RDAC, 0x100, 0x100); 994 snd_soc_update_bits(codec, WM8960_LOUT1, 0x100, 0x100); 995 snd_soc_update_bits(codec, WM8960_ROUT1, 0x100, 0x100); 996 snd_soc_update_bits(codec, WM8960_LOUT2, 0x100, 0x100); 997 snd_soc_update_bits(codec, WM8960_ROUT2, 0x100, 0x100); 998 999 snd_soc_add_codec_controls(codec, wm8960_snd_controls, 1000 ARRAY_SIZE(wm8960_snd_controls)); 1001 wm8960_add_widgets(codec); 1002 1003 return 0; 1004 } 1005 1006 /* power down chip */ 1007 static int wm8960_remove(struct snd_soc_codec *codec) 1008 { 1009 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 1010 1011 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF); 1012 return 0; 1013 } 1014 1015 static struct snd_soc_codec_driver soc_codec_dev_wm8960 = { 1016 .probe = wm8960_probe, 1017 .remove = wm8960_remove, 1018 .suspend = wm8960_suspend, 1019 .resume = wm8960_resume, 1020 .set_bias_level = wm8960_set_bias_level, 1021 }; 1022 1023 static const struct regmap_config wm8960_regmap = { 1024 .reg_bits = 7, 1025 .val_bits = 9, 1026 .max_register = WM8960_PLL4, 1027 1028 .reg_defaults = wm8960_reg_defaults, 1029 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults), 1030 .cache_type = REGCACHE_RBTREE, 1031 1032 .volatile_reg = wm8960_volatile, 1033 }; 1034 1035 static int wm8960_i2c_probe(struct i2c_client *i2c, 1036 const struct i2c_device_id *id) 1037 { 1038 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev); 1039 struct wm8960_priv *wm8960; 1040 int ret; 1041 1042 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv), 1043 GFP_KERNEL); 1044 if (wm8960 == NULL) 1045 return -ENOMEM; 1046 1047 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap); 1048 if (IS_ERR(wm8960->regmap)) 1049 return PTR_ERR(wm8960->regmap); 1050 1051 if (pdata && pdata->shared_lrclk) { 1052 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2, 1053 0x4, 0x4); 1054 if (ret != 0) { 1055 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n", 1056 ret); 1057 return ret; 1058 } 1059 } 1060 1061 i2c_set_clientdata(i2c, wm8960); 1062 1063 ret = snd_soc_register_codec(&i2c->dev, 1064 &soc_codec_dev_wm8960, &wm8960_dai, 1); 1065 1066 return ret; 1067 } 1068 1069 static int wm8960_i2c_remove(struct i2c_client *client) 1070 { 1071 snd_soc_unregister_codec(&client->dev); 1072 return 0; 1073 } 1074 1075 static const struct i2c_device_id wm8960_i2c_id[] = { 1076 { "wm8960", 0 }, 1077 { } 1078 }; 1079 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id); 1080 1081 static struct i2c_driver wm8960_i2c_driver = { 1082 .driver = { 1083 .name = "wm8960", 1084 .owner = THIS_MODULE, 1085 }, 1086 .probe = wm8960_i2c_probe, 1087 .remove = wm8960_i2c_remove, 1088 .id_table = wm8960_i2c_id, 1089 }; 1090 1091 module_i2c_driver(wm8960_i2c_driver); 1092 1093 MODULE_DESCRIPTION("ASoC WM8960 driver"); 1094 MODULE_AUTHOR("Liam Girdwood"); 1095 MODULE_LICENSE("GPL"); 1096