1 /* 2 * ALSA SoC WM9090 driver 3 * 4 * Copyright 2009-12 Wolfson Microelectronics 5 * 6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * version 2 as published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 20 * 02110-1301 USA 21 */ 22 23 #include <linux/module.h> 24 #include <linux/errno.h> 25 #include <linux/device.h> 26 #include <linux/i2c.h> 27 #include <linux/delay.h> 28 #include <linux/regmap.h> 29 #include <linux/slab.h> 30 #include <sound/initval.h> 31 #include <sound/soc.h> 32 #include <sound/tlv.h> 33 #include <sound/wm9090.h> 34 35 #include "wm9090.h" 36 37 static const struct reg_default wm9090_reg_defaults[] = { 38 { 1, 0x0006 }, /* R1 - Power Management (1) */ 39 { 2, 0x6000 }, /* R2 - Power Management (2) */ 40 { 3, 0x0000 }, /* R3 - Power Management (3) */ 41 { 6, 0x01C0 }, /* R6 - Clocking 1 */ 42 { 22, 0x0003 }, /* R22 - IN1 Line Control */ 43 { 23, 0x0003 }, /* R23 - IN2 Line Control */ 44 { 24, 0x0083 }, /* R24 - IN1 Line Input A Volume */ 45 { 25, 0x0083 }, /* R25 - IN1 Line Input B Volume */ 46 { 26, 0x0083 }, /* R26 - IN2 Line Input A Volume */ 47 { 27, 0x0083 }, /* R27 - IN2 Line Input B Volume */ 48 { 28, 0x002D }, /* R28 - Left Output Volume */ 49 { 29, 0x002D }, /* R29 - Right Output Volume */ 50 { 34, 0x0100 }, /* R34 - SPKMIXL Attenuation */ 51 { 35, 0x0010 }, /* R36 - SPKOUT Mixers */ 52 { 37, 0x0140 }, /* R37 - ClassD3 */ 53 { 38, 0x0039 }, /* R38 - Speaker Volume Left */ 54 { 45, 0x0000 }, /* R45 - Output Mixer1 */ 55 { 46, 0x0000 }, /* R46 - Output Mixer2 */ 56 { 47, 0x0100 }, /* R47 - Output Mixer3 */ 57 { 48, 0x0100 }, /* R48 - Output Mixer4 */ 58 { 54, 0x0000 }, /* R54 - Speaker Mixer */ 59 { 57, 0x000D }, /* R57 - AntiPOP2 */ 60 { 70, 0x0000 }, /* R70 - Write Sequencer 0 */ 61 { 71, 0x0000 }, /* R71 - Write Sequencer 1 */ 62 { 72, 0x0000 }, /* R72 - Write Sequencer 2 */ 63 { 73, 0x0000 }, /* R73 - Write Sequencer 3 */ 64 { 74, 0x0000 }, /* R74 - Write Sequencer 4 */ 65 { 75, 0x0000 }, /* R75 - Write Sequencer 5 */ 66 { 76, 0x1F25 }, /* R76 - Charge Pump 1 */ 67 { 85, 0x054A }, /* R85 - DC Servo 1 */ 68 { 87, 0x0000 }, /* R87 - DC Servo 3 */ 69 { 96, 0x0100 }, /* R96 - Analogue HP 0 */ 70 { 98, 0x8640 }, /* R98 - AGC Control 0 */ 71 { 99, 0xC000 }, /* R99 - AGC Control 1 */ 72 { 100, 0x0200 }, /* R100 - AGC Control 2 */ 73 }; 74 75 /* This struct is used to save the context */ 76 struct wm9090_priv { 77 struct wm9090_platform_data pdata; 78 struct regmap *regmap; 79 }; 80 81 static bool wm9090_volatile(struct device *dev, unsigned int reg) 82 { 83 switch (reg) { 84 case WM9090_SOFTWARE_RESET: 85 case WM9090_DC_SERVO_0: 86 case WM9090_DC_SERVO_READBACK_0: 87 case WM9090_DC_SERVO_READBACK_1: 88 case WM9090_DC_SERVO_READBACK_2: 89 return true; 90 91 default: 92 return false; 93 } 94 } 95 96 static bool wm9090_readable(struct device *dev, unsigned int reg) 97 { 98 switch (reg) { 99 case WM9090_SOFTWARE_RESET: 100 case WM9090_POWER_MANAGEMENT_1: 101 case WM9090_POWER_MANAGEMENT_2: 102 case WM9090_POWER_MANAGEMENT_3: 103 case WM9090_CLOCKING_1: 104 case WM9090_IN1_LINE_CONTROL: 105 case WM9090_IN2_LINE_CONTROL: 106 case WM9090_IN1_LINE_INPUT_A_VOLUME: 107 case WM9090_IN1_LINE_INPUT_B_VOLUME: 108 case WM9090_IN2_LINE_INPUT_A_VOLUME: 109 case WM9090_IN2_LINE_INPUT_B_VOLUME: 110 case WM9090_LEFT_OUTPUT_VOLUME: 111 case WM9090_RIGHT_OUTPUT_VOLUME: 112 case WM9090_SPKMIXL_ATTENUATION: 113 case WM9090_SPKOUT_MIXERS: 114 case WM9090_CLASSD3: 115 case WM9090_SPEAKER_VOLUME_LEFT: 116 case WM9090_OUTPUT_MIXER1: 117 case WM9090_OUTPUT_MIXER2: 118 case WM9090_OUTPUT_MIXER3: 119 case WM9090_OUTPUT_MIXER4: 120 case WM9090_SPEAKER_MIXER: 121 case WM9090_ANTIPOP2: 122 case WM9090_WRITE_SEQUENCER_0: 123 case WM9090_WRITE_SEQUENCER_1: 124 case WM9090_WRITE_SEQUENCER_2: 125 case WM9090_WRITE_SEQUENCER_3: 126 case WM9090_WRITE_SEQUENCER_4: 127 case WM9090_WRITE_SEQUENCER_5: 128 case WM9090_CHARGE_PUMP_1: 129 case WM9090_DC_SERVO_0: 130 case WM9090_DC_SERVO_1: 131 case WM9090_DC_SERVO_3: 132 case WM9090_DC_SERVO_READBACK_0: 133 case WM9090_DC_SERVO_READBACK_1: 134 case WM9090_DC_SERVO_READBACK_2: 135 case WM9090_ANALOGUE_HP_0: 136 case WM9090_AGC_CONTROL_0: 137 case WM9090_AGC_CONTROL_1: 138 case WM9090_AGC_CONTROL_2: 139 return true; 140 141 default: 142 return false; 143 } 144 } 145 146 static void wait_for_dc_servo(struct snd_soc_codec *codec) 147 { 148 unsigned int reg; 149 int count = 0; 150 151 dev_dbg(codec->dev, "Waiting for DC servo...\n"); 152 do { 153 count++; 154 msleep(1); 155 reg = snd_soc_read(codec, WM9090_DC_SERVO_READBACK_0); 156 dev_dbg(codec->dev, "DC servo status: %x\n", reg); 157 } while ((reg & WM9090_DCS_CAL_COMPLETE_MASK) 158 != WM9090_DCS_CAL_COMPLETE_MASK && count < 1000); 159 160 if ((reg & WM9090_DCS_CAL_COMPLETE_MASK) 161 != WM9090_DCS_CAL_COMPLETE_MASK) 162 dev_err(codec->dev, "Timed out waiting for DC Servo\n"); 163 } 164 165 static const DECLARE_TLV_DB_RANGE(in_tlv, 166 0, 0, TLV_DB_SCALE_ITEM(-600, 0, 0), 167 1, 3, TLV_DB_SCALE_ITEM(-350, 350, 0), 168 4, 6, TLV_DB_SCALE_ITEM(600, 600, 0) 169 ); 170 static const DECLARE_TLV_DB_RANGE(mix_tlv, 171 0, 2, TLV_DB_SCALE_ITEM(-1200, 300, 0), 172 3, 3, TLV_DB_SCALE_ITEM(0, 0, 0) 173 ); 174 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0); 175 static const DECLARE_TLV_DB_RANGE(spkboost_tlv, 176 0, 6, TLV_DB_SCALE_ITEM(0, 150, 0), 177 7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0) 178 ); 179 180 static const struct snd_kcontrol_new wm9090_controls[] = { 181 SOC_SINGLE_TLV("IN1A Volume", WM9090_IN1_LINE_INPUT_A_VOLUME, 0, 6, 0, 182 in_tlv), 183 SOC_SINGLE("IN1A Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 7, 1, 1), 184 SOC_SINGLE("IN1A ZC Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 6, 1, 0), 185 186 SOC_SINGLE_TLV("IN2A Volume", WM9090_IN2_LINE_INPUT_A_VOLUME, 0, 6, 0, 187 in_tlv), 188 SOC_SINGLE("IN2A Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 7, 1, 1), 189 SOC_SINGLE("IN2A ZC Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 6, 1, 0), 190 191 SOC_SINGLE("MIXOUTL Switch", WM9090_OUTPUT_MIXER3, 8, 1, 1), 192 SOC_SINGLE_TLV("MIXOUTL IN1A Volume", WM9090_OUTPUT_MIXER3, 6, 3, 1, 193 mix_tlv), 194 SOC_SINGLE_TLV("MIXOUTL IN2A Volume", WM9090_OUTPUT_MIXER3, 2, 3, 1, 195 mix_tlv), 196 197 SOC_SINGLE("MIXOUTR Switch", WM9090_OUTPUT_MIXER4, 8, 1, 1), 198 SOC_SINGLE_TLV("MIXOUTR IN1A Volume", WM9090_OUTPUT_MIXER4, 6, 3, 1, 199 mix_tlv), 200 SOC_SINGLE_TLV("MIXOUTR IN2A Volume", WM9090_OUTPUT_MIXER4, 2, 3, 1, 201 mix_tlv), 202 203 SOC_SINGLE("SPKMIX Switch", WM9090_SPKMIXL_ATTENUATION, 8, 1, 1), 204 SOC_SINGLE_TLV("SPKMIX IN1A Volume", WM9090_SPKMIXL_ATTENUATION, 6, 3, 1, 205 mix_tlv), 206 SOC_SINGLE_TLV("SPKMIX IN2A Volume", WM9090_SPKMIXL_ATTENUATION, 2, 3, 1, 207 mix_tlv), 208 209 SOC_DOUBLE_R_TLV("Headphone Volume", WM9090_LEFT_OUTPUT_VOLUME, 210 WM9090_RIGHT_OUTPUT_VOLUME, 0, 63, 0, out_tlv), 211 SOC_DOUBLE_R("Headphone Switch", WM9090_LEFT_OUTPUT_VOLUME, 212 WM9090_RIGHT_OUTPUT_VOLUME, 6, 1, 1), 213 SOC_DOUBLE_R("Headphone ZC Switch", WM9090_LEFT_OUTPUT_VOLUME, 214 WM9090_RIGHT_OUTPUT_VOLUME, 7, 1, 0), 215 216 SOC_SINGLE_TLV("Speaker Volume", WM9090_SPEAKER_VOLUME_LEFT, 0, 63, 0, 217 out_tlv), 218 SOC_SINGLE("Speaker Switch", WM9090_SPEAKER_VOLUME_LEFT, 6, 1, 1), 219 SOC_SINGLE("Speaker ZC Switch", WM9090_SPEAKER_VOLUME_LEFT, 7, 1, 0), 220 SOC_SINGLE_TLV("Speaker Boost Volume", WM9090_CLASSD3, 3, 7, 0, spkboost_tlv), 221 }; 222 223 static const struct snd_kcontrol_new wm9090_in1_se_controls[] = { 224 SOC_SINGLE_TLV("IN1B Volume", WM9090_IN1_LINE_INPUT_B_VOLUME, 0, 6, 0, 225 in_tlv), 226 SOC_SINGLE("IN1B Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 7, 1, 1), 227 SOC_SINGLE("IN1B ZC Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 6, 1, 0), 228 229 SOC_SINGLE_TLV("SPKMIX IN1B Volume", WM9090_SPKMIXL_ATTENUATION, 4, 3, 1, 230 mix_tlv), 231 SOC_SINGLE_TLV("MIXOUTL IN1B Volume", WM9090_OUTPUT_MIXER3, 4, 3, 1, 232 mix_tlv), 233 SOC_SINGLE_TLV("MIXOUTR IN1B Volume", WM9090_OUTPUT_MIXER4, 4, 3, 1, 234 mix_tlv), 235 }; 236 237 static const struct snd_kcontrol_new wm9090_in2_se_controls[] = { 238 SOC_SINGLE_TLV("IN2B Volume", WM9090_IN2_LINE_INPUT_B_VOLUME, 0, 6, 0, 239 in_tlv), 240 SOC_SINGLE("IN2B Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 7, 1, 1), 241 SOC_SINGLE("IN2B ZC Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 6, 1, 0), 242 243 SOC_SINGLE_TLV("SPKMIX IN2B Volume", WM9090_SPKMIXL_ATTENUATION, 0, 3, 1, 244 mix_tlv), 245 SOC_SINGLE_TLV("MIXOUTL IN2B Volume", WM9090_OUTPUT_MIXER3, 0, 3, 1, 246 mix_tlv), 247 SOC_SINGLE_TLV("MIXOUTR IN2B Volume", WM9090_OUTPUT_MIXER4, 0, 3, 1, 248 mix_tlv), 249 }; 250 251 static int hp_ev(struct snd_soc_dapm_widget *w, 252 struct snd_kcontrol *kcontrol, int event) 253 { 254 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); 255 unsigned int reg = snd_soc_read(codec, WM9090_ANALOGUE_HP_0); 256 257 switch (event) { 258 case SND_SOC_DAPM_POST_PMU: 259 snd_soc_update_bits(codec, WM9090_CHARGE_PUMP_1, 260 WM9090_CP_ENA, WM9090_CP_ENA); 261 262 msleep(5); 263 264 snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_1, 265 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA, 266 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA); 267 268 reg |= WM9090_HPOUT1L_DLY | WM9090_HPOUT1R_DLY; 269 snd_soc_write(codec, WM9090_ANALOGUE_HP_0, reg); 270 271 /* Start the DC servo. We don't currently use the 272 * ability to save the state since we don't have full 273 * control of the analogue paths and they can change 274 * DC offsets; see the WM8904 driver for an example of 275 * doing so. 276 */ 277 snd_soc_write(codec, WM9090_DC_SERVO_0, 278 WM9090_DCS_ENA_CHAN_0 | 279 WM9090_DCS_ENA_CHAN_1 | 280 WM9090_DCS_TRIG_STARTUP_1 | 281 WM9090_DCS_TRIG_STARTUP_0); 282 wait_for_dc_servo(codec); 283 284 reg |= WM9090_HPOUT1R_OUTP | WM9090_HPOUT1R_RMV_SHORT | 285 WM9090_HPOUT1L_OUTP | WM9090_HPOUT1L_RMV_SHORT; 286 snd_soc_write(codec, WM9090_ANALOGUE_HP_0, reg); 287 break; 288 289 case SND_SOC_DAPM_PRE_PMD: 290 reg &= ~(WM9090_HPOUT1L_RMV_SHORT | 291 WM9090_HPOUT1L_DLY | 292 WM9090_HPOUT1L_OUTP | 293 WM9090_HPOUT1R_RMV_SHORT | 294 WM9090_HPOUT1R_DLY | 295 WM9090_HPOUT1R_OUTP); 296 297 snd_soc_write(codec, WM9090_ANALOGUE_HP_0, reg); 298 299 snd_soc_write(codec, WM9090_DC_SERVO_0, 0); 300 301 snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_1, 302 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA, 303 0); 304 305 snd_soc_update_bits(codec, WM9090_CHARGE_PUMP_1, 306 WM9090_CP_ENA, 0); 307 break; 308 } 309 310 return 0; 311 } 312 313 static const struct snd_kcontrol_new spkmix[] = { 314 SOC_DAPM_SINGLE("IN1A Switch", WM9090_SPEAKER_MIXER, 6, 1, 0), 315 SOC_DAPM_SINGLE("IN1B Switch", WM9090_SPEAKER_MIXER, 4, 1, 0), 316 SOC_DAPM_SINGLE("IN2A Switch", WM9090_SPEAKER_MIXER, 2, 1, 0), 317 SOC_DAPM_SINGLE("IN2B Switch", WM9090_SPEAKER_MIXER, 0, 1, 0), 318 }; 319 320 static const struct snd_kcontrol_new spkout[] = { 321 SOC_DAPM_SINGLE("Mixer Switch", WM9090_SPKOUT_MIXERS, 4, 1, 0), 322 }; 323 324 static const struct snd_kcontrol_new mixoutl[] = { 325 SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER1, 6, 1, 0), 326 SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER1, 4, 1, 0), 327 SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER1, 2, 1, 0), 328 SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER1, 0, 1, 0), 329 }; 330 331 static const struct snd_kcontrol_new mixoutr[] = { 332 SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER2, 6, 1, 0), 333 SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER2, 4, 1, 0), 334 SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER2, 2, 1, 0), 335 SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER2, 0, 1, 0), 336 }; 337 338 static const struct snd_soc_dapm_widget wm9090_dapm_widgets[] = { 339 SND_SOC_DAPM_INPUT("IN1+"), 340 SND_SOC_DAPM_INPUT("IN1-"), 341 SND_SOC_DAPM_INPUT("IN2+"), 342 SND_SOC_DAPM_INPUT("IN2-"), 343 344 SND_SOC_DAPM_SUPPLY("OSC", WM9090_POWER_MANAGEMENT_1, 3, 0, NULL, 0), 345 346 SND_SOC_DAPM_PGA("IN1A PGA", WM9090_POWER_MANAGEMENT_2, 7, 0, NULL, 0), 347 SND_SOC_DAPM_PGA("IN1B PGA", WM9090_POWER_MANAGEMENT_2, 6, 0, NULL, 0), 348 SND_SOC_DAPM_PGA("IN2A PGA", WM9090_POWER_MANAGEMENT_2, 5, 0, NULL, 0), 349 SND_SOC_DAPM_PGA("IN2B PGA", WM9090_POWER_MANAGEMENT_2, 4, 0, NULL, 0), 350 351 SND_SOC_DAPM_MIXER("SPKMIX", WM9090_POWER_MANAGEMENT_3, 3, 0, 352 spkmix, ARRAY_SIZE(spkmix)), 353 SND_SOC_DAPM_MIXER("MIXOUTL", WM9090_POWER_MANAGEMENT_3, 5, 0, 354 mixoutl, ARRAY_SIZE(mixoutl)), 355 SND_SOC_DAPM_MIXER("MIXOUTR", WM9090_POWER_MANAGEMENT_3, 4, 0, 356 mixoutr, ARRAY_SIZE(mixoutr)), 357 358 SND_SOC_DAPM_PGA_E("HP PGA", SND_SOC_NOPM, 0, 0, NULL, 0, 359 hp_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 360 361 SND_SOC_DAPM_PGA("SPKPGA", WM9090_POWER_MANAGEMENT_3, 8, 0, NULL, 0), 362 SND_SOC_DAPM_MIXER("SPKOUT", WM9090_POWER_MANAGEMENT_1, 12, 0, 363 spkout, ARRAY_SIZE(spkout)), 364 365 SND_SOC_DAPM_OUTPUT("HPR"), 366 SND_SOC_DAPM_OUTPUT("HPL"), 367 SND_SOC_DAPM_OUTPUT("Speaker"), 368 }; 369 370 static const struct snd_soc_dapm_route audio_map[] = { 371 { "IN1A PGA", NULL, "IN1+" }, 372 { "IN2A PGA", NULL, "IN2+" }, 373 374 { "SPKMIX", "IN1A Switch", "IN1A PGA" }, 375 { "SPKMIX", "IN2A Switch", "IN2A PGA" }, 376 377 { "MIXOUTL", "IN1A Switch", "IN1A PGA" }, 378 { "MIXOUTL", "IN2A Switch", "IN2A PGA" }, 379 380 { "MIXOUTR", "IN1A Switch", "IN1A PGA" }, 381 { "MIXOUTR", "IN2A Switch", "IN2A PGA" }, 382 383 { "HP PGA", NULL, "OSC" }, 384 { "HP PGA", NULL, "MIXOUTL" }, 385 { "HP PGA", NULL, "MIXOUTR" }, 386 387 { "HPL", NULL, "HP PGA" }, 388 { "HPR", NULL, "HP PGA" }, 389 390 { "SPKPGA", NULL, "OSC" }, 391 { "SPKPGA", NULL, "SPKMIX" }, 392 393 { "SPKOUT", "Mixer Switch", "SPKPGA" }, 394 395 { "Speaker", NULL, "SPKOUT" }, 396 }; 397 398 static const struct snd_soc_dapm_route audio_map_in1_se[] = { 399 { "IN1B PGA", NULL, "IN1-" }, 400 401 { "SPKMIX", "IN1B Switch", "IN1B PGA" }, 402 { "MIXOUTL", "IN1B Switch", "IN1B PGA" }, 403 { "MIXOUTR", "IN1B Switch", "IN1B PGA" }, 404 }; 405 406 static const struct snd_soc_dapm_route audio_map_in1_diff[] = { 407 { "IN1A PGA", NULL, "IN1-" }, 408 }; 409 410 static const struct snd_soc_dapm_route audio_map_in2_se[] = { 411 { "IN2B PGA", NULL, "IN2-" }, 412 413 { "SPKMIX", "IN2B Switch", "IN2B PGA" }, 414 { "MIXOUTL", "IN2B Switch", "IN2B PGA" }, 415 { "MIXOUTR", "IN2B Switch", "IN2B PGA" }, 416 }; 417 418 static const struct snd_soc_dapm_route audio_map_in2_diff[] = { 419 { "IN2A PGA", NULL, "IN2-" }, 420 }; 421 422 static int wm9090_add_controls(struct snd_soc_codec *codec) 423 { 424 struct wm9090_priv *wm9090 = snd_soc_codec_get_drvdata(codec); 425 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); 426 int i; 427 428 snd_soc_dapm_new_controls(dapm, wm9090_dapm_widgets, 429 ARRAY_SIZE(wm9090_dapm_widgets)); 430 431 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); 432 433 snd_soc_add_codec_controls(codec, wm9090_controls, 434 ARRAY_SIZE(wm9090_controls)); 435 436 if (wm9090->pdata.lin1_diff) { 437 snd_soc_dapm_add_routes(dapm, audio_map_in1_diff, 438 ARRAY_SIZE(audio_map_in1_diff)); 439 } else { 440 snd_soc_dapm_add_routes(dapm, audio_map_in1_se, 441 ARRAY_SIZE(audio_map_in1_se)); 442 snd_soc_add_codec_controls(codec, wm9090_in1_se_controls, 443 ARRAY_SIZE(wm9090_in1_se_controls)); 444 } 445 446 if (wm9090->pdata.lin2_diff) { 447 snd_soc_dapm_add_routes(dapm, audio_map_in2_diff, 448 ARRAY_SIZE(audio_map_in2_diff)); 449 } else { 450 snd_soc_dapm_add_routes(dapm, audio_map_in2_se, 451 ARRAY_SIZE(audio_map_in2_se)); 452 snd_soc_add_codec_controls(codec, wm9090_in2_se_controls, 453 ARRAY_SIZE(wm9090_in2_se_controls)); 454 } 455 456 if (wm9090->pdata.agc_ena) { 457 for (i = 0; i < ARRAY_SIZE(wm9090->pdata.agc); i++) 458 snd_soc_write(codec, WM9090_AGC_CONTROL_0 + i, 459 wm9090->pdata.agc[i]); 460 snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_3, 461 WM9090_AGC_ENA, WM9090_AGC_ENA); 462 } else { 463 snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_3, 464 WM9090_AGC_ENA, 0); 465 } 466 467 return 0; 468 469 } 470 471 /* 472 * The machine driver should call this from their set_bias_level; if there 473 * isn't one then this can just be set as the set_bias_level function. 474 */ 475 static int wm9090_set_bias_level(struct snd_soc_codec *codec, 476 enum snd_soc_bias_level level) 477 { 478 struct wm9090_priv *wm9090 = snd_soc_codec_get_drvdata(codec); 479 480 switch (level) { 481 case SND_SOC_BIAS_ON: 482 break; 483 484 case SND_SOC_BIAS_PREPARE: 485 snd_soc_update_bits(codec, WM9090_ANTIPOP2, WM9090_VMID_ENA, 486 WM9090_VMID_ENA); 487 snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_1, 488 WM9090_BIAS_ENA | 489 WM9090_VMID_RES_MASK, 490 WM9090_BIAS_ENA | 491 1 << WM9090_VMID_RES_SHIFT); 492 msleep(1); /* Probably an overestimate */ 493 break; 494 495 case SND_SOC_BIAS_STANDBY: 496 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { 497 /* Restore the register cache */ 498 regcache_sync(wm9090->regmap); 499 } 500 501 /* We keep VMID off during standby since the combination of 502 * ground referenced outputs and class D speaker mean that 503 * latency is not an issue. 504 */ 505 snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_1, 506 WM9090_BIAS_ENA | WM9090_VMID_RES_MASK, 0); 507 snd_soc_update_bits(codec, WM9090_ANTIPOP2, 508 WM9090_VMID_ENA, 0); 509 break; 510 511 case SND_SOC_BIAS_OFF: 512 break; 513 } 514 515 return 0; 516 } 517 518 static int wm9090_probe(struct snd_soc_codec *codec) 519 { 520 /* Configure some defaults; they will be written out when we 521 * bring the bias up. 522 */ 523 snd_soc_update_bits(codec, WM9090_IN1_LINE_INPUT_A_VOLUME, 524 WM9090_IN1_VU | WM9090_IN1A_ZC, 525 WM9090_IN1_VU | WM9090_IN1A_ZC); 526 snd_soc_update_bits(codec, WM9090_IN1_LINE_INPUT_B_VOLUME, 527 WM9090_IN1_VU | WM9090_IN1B_ZC, 528 WM9090_IN1_VU | WM9090_IN1B_ZC); 529 snd_soc_update_bits(codec, WM9090_IN2_LINE_INPUT_A_VOLUME, 530 WM9090_IN2_VU | WM9090_IN2A_ZC, 531 WM9090_IN2_VU | WM9090_IN2A_ZC); 532 snd_soc_update_bits(codec, WM9090_IN2_LINE_INPUT_B_VOLUME, 533 WM9090_IN2_VU | WM9090_IN2B_ZC, 534 WM9090_IN2_VU | WM9090_IN2B_ZC); 535 snd_soc_update_bits(codec, WM9090_SPEAKER_VOLUME_LEFT, 536 WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC, 537 WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC); 538 snd_soc_update_bits(codec, WM9090_LEFT_OUTPUT_VOLUME, 539 WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC, 540 WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC); 541 snd_soc_update_bits(codec, WM9090_RIGHT_OUTPUT_VOLUME, 542 WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC, 543 WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC); 544 545 snd_soc_update_bits(codec, WM9090_CLOCKING_1, 546 WM9090_TOCLK_ENA, WM9090_TOCLK_ENA); 547 548 wm9090_add_controls(codec); 549 550 return 0; 551 } 552 553 static struct snd_soc_codec_driver soc_codec_dev_wm9090 = { 554 .probe = wm9090_probe, 555 .set_bias_level = wm9090_set_bias_level, 556 .suspend_bias_off = true, 557 }; 558 559 static const struct regmap_config wm9090_regmap = { 560 .reg_bits = 8, 561 .val_bits = 16, 562 563 .max_register = WM9090_MAX_REGISTER, 564 .volatile_reg = wm9090_volatile, 565 .readable_reg = wm9090_readable, 566 567 .cache_type = REGCACHE_RBTREE, 568 .reg_defaults = wm9090_reg_defaults, 569 .num_reg_defaults = ARRAY_SIZE(wm9090_reg_defaults), 570 }; 571 572 573 static int wm9090_i2c_probe(struct i2c_client *i2c, 574 const struct i2c_device_id *id) 575 { 576 struct wm9090_priv *wm9090; 577 unsigned int reg; 578 int ret; 579 580 wm9090 = devm_kzalloc(&i2c->dev, sizeof(*wm9090), GFP_KERNEL); 581 if (!wm9090) 582 return -ENOMEM; 583 584 wm9090->regmap = devm_regmap_init_i2c(i2c, &wm9090_regmap); 585 if (IS_ERR(wm9090->regmap)) { 586 ret = PTR_ERR(wm9090->regmap); 587 dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret); 588 return ret; 589 } 590 591 ret = regmap_read(wm9090->regmap, WM9090_SOFTWARE_RESET, ®); 592 if (ret < 0) 593 return ret; 594 595 if (reg != 0x9093) { 596 dev_err(&i2c->dev, "Device is not a WM9090, ID=%x\n", reg); 597 return -ENODEV; 598 } 599 600 ret = regmap_write(wm9090->regmap, WM9090_SOFTWARE_RESET, 0); 601 if (ret < 0) 602 return ret; 603 604 if (i2c->dev.platform_data) 605 memcpy(&wm9090->pdata, i2c->dev.platform_data, 606 sizeof(wm9090->pdata)); 607 608 i2c_set_clientdata(i2c, wm9090); 609 610 ret = snd_soc_register_codec(&i2c->dev, 611 &soc_codec_dev_wm9090, NULL, 0); 612 if (ret != 0) { 613 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); 614 return ret; 615 } 616 617 return 0; 618 } 619 620 static int wm9090_i2c_remove(struct i2c_client *i2c) 621 { 622 snd_soc_unregister_codec(&i2c->dev); 623 return 0; 624 } 625 626 static const struct i2c_device_id wm9090_id[] = { 627 { "wm9090", 0 }, 628 { "wm9093", 0 }, 629 { } 630 }; 631 MODULE_DEVICE_TABLE(i2c, wm9090_id); 632 633 static struct i2c_driver wm9090_i2c_driver = { 634 .driver = { 635 .name = "wm9090", 636 }, 637 .probe = wm9090_i2c_probe, 638 .remove = wm9090_i2c_remove, 639 .id_table = wm9090_id, 640 }; 641 642 module_i2c_driver(wm9090_i2c_driver); 643 644 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 645 MODULE_DESCRIPTION("WM9090 ASoC driver"); 646 MODULE_LICENSE("GPL"); 647