1/* 2 * ak4671.c -- audio driver for AK4671 3 * 4 * Copyright (C) 2009 Samsung Electronics Co.Ltd 5 * Author: Joonyoung Shim <jy0922.shim@samsung.com> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or (at your 10 * option) any later version. 11 * 12 */ 13 14#include <linux/module.h> 15#include <linux/init.h> 16#include <linux/i2c.h> 17#include <linux/delay.h> 18#include <linux/slab.h> 19#include <sound/soc.h> 20#include <sound/soc-dapm.h> 21#include <sound/initval.h> 22#include <sound/tlv.h> 23 24#include "ak4671.h" 25 26static struct snd_soc_codec *ak4671_codec; 27 28/* codec private data */ 29struct ak4671_priv { 30 struct snd_soc_codec codec; 31 u8 reg_cache[AK4671_CACHEREGNUM]; 32}; 33 34/* ak4671 register cache & default register settings */ 35static const u8 ak4671_reg[AK4671_CACHEREGNUM] = { 36 0x00, /* AK4671_AD_DA_POWER_MANAGEMENT (0x00) */ 37 0xf6, /* AK4671_PLL_MODE_SELECT0 (0x01) */ 38 0x00, /* AK4671_PLL_MODE_SELECT1 (0x02) */ 39 0x02, /* AK4671_FORMAT_SELECT (0x03) */ 40 0x00, /* AK4671_MIC_SIGNAL_SELECT (0x04) */ 41 0x55, /* AK4671_MIC_AMP_GAIN (0x05) */ 42 0x00, /* AK4671_MIXING_POWER_MANAGEMENT0 (0x06) */ 43 0x00, /* AK4671_MIXING_POWER_MANAGEMENT1 (0x07) */ 44 0xb5, /* AK4671_OUTPUT_VOLUME_CONTROL (0x08) */ 45 0x00, /* AK4671_LOUT1_SIGNAL_SELECT (0x09) */ 46 0x00, /* AK4671_ROUT1_SIGNAL_SELECT (0x0a) */ 47 0x00, /* AK4671_LOUT2_SIGNAL_SELECT (0x0b) */ 48 0x00, /* AK4671_ROUT2_SIGNAL_SELECT (0x0c) */ 49 0x00, /* AK4671_LOUT3_SIGNAL_SELECT (0x0d) */ 50 0x00, /* AK4671_ROUT3_SIGNAL_SELECT (0x0e) */ 51 0x00, /* AK4671_LOUT1_POWER_MANAGERMENT (0x0f) */ 52 0x00, /* AK4671_LOUT2_POWER_MANAGERMENT (0x10) */ 53 0x80, /* AK4671_LOUT3_POWER_MANAGERMENT (0x11) */ 54 0x91, /* AK4671_LCH_INPUT_VOLUME_CONTROL (0x12) */ 55 0x91, /* AK4671_RCH_INPUT_VOLUME_CONTROL (0x13) */ 56 0xe1, /* AK4671_ALC_REFERENCE_SELECT (0x14) */ 57 0x00, /* AK4671_DIGITAL_MIXING_CONTROL (0x15) */ 58 0x00, /* AK4671_ALC_TIMER_SELECT (0x16) */ 59 0x00, /* AK4671_ALC_MODE_CONTROL (0x17) */ 60 0x02, /* AK4671_MODE_CONTROL1 (0x18) */ 61 0x01, /* AK4671_MODE_CONTROL2 (0x19) */ 62 0x18, /* AK4671_LCH_OUTPUT_VOLUME_CONTROL (0x1a) */ 63 0x18, /* AK4671_RCH_OUTPUT_VOLUME_CONTROL (0x1b) */ 64 0x00, /* AK4671_SIDETONE_A_CONTROL (0x1c) */ 65 0x02, /* AK4671_DIGITAL_FILTER_SELECT (0x1d) */ 66 0x00, /* AK4671_FIL3_COEFFICIENT0 (0x1e) */ 67 0x00, /* AK4671_FIL3_COEFFICIENT1 (0x1f) */ 68 0x00, /* AK4671_FIL3_COEFFICIENT2 (0x20) */ 69 0x00, /* AK4671_FIL3_COEFFICIENT3 (0x21) */ 70 0x00, /* AK4671_EQ_COEFFICIENT0 (0x22) */ 71 0x00, /* AK4671_EQ_COEFFICIENT1 (0x23) */ 72 0x00, /* AK4671_EQ_COEFFICIENT2 (0x24) */ 73 0x00, /* AK4671_EQ_COEFFICIENT3 (0x25) */ 74 0x00, /* AK4671_EQ_COEFFICIENT4 (0x26) */ 75 0x00, /* AK4671_EQ_COEFFICIENT5 (0x27) */ 76 0xa9, /* AK4671_FIL1_COEFFICIENT0 (0x28) */ 77 0x1f, /* AK4671_FIL1_COEFFICIENT1 (0x29) */ 78 0xad, /* AK4671_FIL1_COEFFICIENT2 (0x2a) */ 79 0x20, /* AK4671_FIL1_COEFFICIENT3 (0x2b) */ 80 0x00, /* AK4671_FIL2_COEFFICIENT0 (0x2c) */ 81 0x00, /* AK4671_FIL2_COEFFICIENT1 (0x2d) */ 82 0x00, /* AK4671_FIL2_COEFFICIENT2 (0x2e) */ 83 0x00, /* AK4671_FIL2_COEFFICIENT3 (0x2f) */ 84 0x00, /* AK4671_DIGITAL_FILTER_SELECT2 (0x30) */ 85 0x00, /* this register not used */ 86 0x00, /* AK4671_E1_COEFFICIENT0 (0x32) */ 87 0x00, /* AK4671_E1_COEFFICIENT1 (0x33) */ 88 0x00, /* AK4671_E1_COEFFICIENT2 (0x34) */ 89 0x00, /* AK4671_E1_COEFFICIENT3 (0x35) */ 90 0x00, /* AK4671_E1_COEFFICIENT4 (0x36) */ 91 0x00, /* AK4671_E1_COEFFICIENT5 (0x37) */ 92 0x00, /* AK4671_E2_COEFFICIENT0 (0x38) */ 93 0x00, /* AK4671_E2_COEFFICIENT1 (0x39) */ 94 0x00, /* AK4671_E2_COEFFICIENT2 (0x3a) */ 95 0x00, /* AK4671_E2_COEFFICIENT3 (0x3b) */ 96 0x00, /* AK4671_E2_COEFFICIENT4 (0x3c) */ 97 0x00, /* AK4671_E2_COEFFICIENT5 (0x3d) */ 98 0x00, /* AK4671_E3_COEFFICIENT0 (0x3e) */ 99 0x00, /* AK4671_E3_COEFFICIENT1 (0x3f) */ 100 0x00, /* AK4671_E3_COEFFICIENT2 (0x40) */ 101 0x00, /* AK4671_E3_COEFFICIENT3 (0x41) */ 102 0x00, /* AK4671_E3_COEFFICIENT4 (0x42) */ 103 0x00, /* AK4671_E3_COEFFICIENT5 (0x43) */ 104 0x00, /* AK4671_E4_COEFFICIENT0 (0x44) */ 105 0x00, /* AK4671_E4_COEFFICIENT1 (0x45) */ 106 0x00, /* AK4671_E4_COEFFICIENT2 (0x46) */ 107 0x00, /* AK4671_E4_COEFFICIENT3 (0x47) */ 108 0x00, /* AK4671_E4_COEFFICIENT4 (0x48) */ 109 0x00, /* AK4671_E4_COEFFICIENT5 (0x49) */ 110 0x00, /* AK4671_E5_COEFFICIENT0 (0x4a) */ 111 0x00, /* AK4671_E5_COEFFICIENT1 (0x4b) */ 112 0x00, /* AK4671_E5_COEFFICIENT2 (0x4c) */ 113 0x00, /* AK4671_E5_COEFFICIENT3 (0x4d) */ 114 0x00, /* AK4671_E5_COEFFICIENT4 (0x4e) */ 115 0x00, /* AK4671_E5_COEFFICIENT5 (0x4f) */ 116 0x88, /* AK4671_EQ_CONTROL_250HZ_100HZ (0x50) */ 117 0x88, /* AK4671_EQ_CONTROL_3500HZ_1KHZ (0x51) */ 118 0x08, /* AK4671_EQ_CONTRO_10KHZ (0x52) */ 119 0x00, /* AK4671_PCM_IF_CONTROL0 (0x53) */ 120 0x00, /* AK4671_PCM_IF_CONTROL1 (0x54) */ 121 0x00, /* AK4671_PCM_IF_CONTROL2 (0x55) */ 122 0x18, /* AK4671_DIGITAL_VOLUME_B_CONTROL (0x56) */ 123 0x18, /* AK4671_DIGITAL_VOLUME_C_CONTROL (0x57) */ 124 0x00, /* AK4671_SIDETONE_VOLUME_CONTROL (0x58) */ 125 0x00, /* AK4671_DIGITAL_MIXING_CONTROL2 (0x59) */ 126 0x00, /* AK4671_SAR_ADC_CONTROL (0x5a) */ 127}; 128 129/* 130 * LOUT1/ROUT1 output volume control: 131 * from -24 to 6 dB in 6 dB steps (mute instead of -30 dB) 132 */ 133static DECLARE_TLV_DB_SCALE(out1_tlv, -3000, 600, 1); 134 135/* 136 * LOUT2/ROUT2 output volume control: 137 * from -33 to 6 dB in 3 dB steps (mute instead of -33 dB) 138 */ 139static DECLARE_TLV_DB_SCALE(out2_tlv, -3300, 300, 1); 140 141/* 142 * LOUT3/ROUT3 output volume control: 143 * from -6 to 3 dB in 3 dB steps 144 */ 145static DECLARE_TLV_DB_SCALE(out3_tlv, -600, 300, 0); 146 147/* 148 * Mic amp gain control: 149 * from -15 to 30 dB in 3 dB steps 150 * REVISIT: The actual min value(0x01) is -12 dB and the reg value 0x00 is not 151 * available 152 */ 153static DECLARE_TLV_DB_SCALE(mic_amp_tlv, -1500, 300, 0); 154 155static const struct snd_kcontrol_new ak4671_snd_controls[] = { 156 /* Common playback gain controls */ 157 SOC_SINGLE_TLV("Line Output1 Playback Volume", 158 AK4671_OUTPUT_VOLUME_CONTROL, 0, 0x6, 0, out1_tlv), 159 SOC_SINGLE_TLV("Headphone Output2 Playback Volume", 160 AK4671_OUTPUT_VOLUME_CONTROL, 4, 0xd, 0, out2_tlv), 161 SOC_SINGLE_TLV("Line Output3 Playback Volume", 162 AK4671_LOUT3_POWER_MANAGERMENT, 6, 0x3, 0, out3_tlv), 163 164 /* Common capture gain controls */ 165 SOC_DOUBLE_TLV("Mic Amp Capture Volume", 166 AK4671_MIC_AMP_GAIN, 0, 4, 0xf, 0, mic_amp_tlv), 167}; 168 169/* event handlers */ 170static int ak4671_out2_event(struct snd_soc_dapm_widget *w, 171 struct snd_kcontrol *kcontrol, int event) 172{ 173 struct snd_soc_codec *codec = w->codec; 174 u8 reg; 175 176 switch (event) { 177 case SND_SOC_DAPM_POST_PMU: 178 reg = snd_soc_read(codec, AK4671_LOUT2_POWER_MANAGERMENT); 179 reg |= AK4671_MUTEN; 180 snd_soc_write(codec, AK4671_LOUT2_POWER_MANAGERMENT, reg); 181 break; 182 case SND_SOC_DAPM_PRE_PMD: 183 reg = snd_soc_read(codec, AK4671_LOUT2_POWER_MANAGERMENT); 184 reg &= ~AK4671_MUTEN; 185 snd_soc_write(codec, AK4671_LOUT2_POWER_MANAGERMENT, reg); 186 break; 187 } 188 189 return 0; 190} 191 192/* Output Mixers */ 193static const struct snd_kcontrol_new ak4671_lout1_mixer_controls[] = { 194 SOC_DAPM_SINGLE("DACL", AK4671_LOUT1_SIGNAL_SELECT, 0, 1, 0), 195 SOC_DAPM_SINGLE("LINL1", AK4671_LOUT1_SIGNAL_SELECT, 1, 1, 0), 196 SOC_DAPM_SINGLE("LINL2", AK4671_LOUT1_SIGNAL_SELECT, 2, 1, 0), 197 SOC_DAPM_SINGLE("LINL3", AK4671_LOUT1_SIGNAL_SELECT, 3, 1, 0), 198 SOC_DAPM_SINGLE("LINL4", AK4671_LOUT1_SIGNAL_SELECT, 4, 1, 0), 199 SOC_DAPM_SINGLE("LOOPL", AK4671_LOUT1_SIGNAL_SELECT, 5, 1, 0), 200}; 201 202static const struct snd_kcontrol_new ak4671_rout1_mixer_controls[] = { 203 SOC_DAPM_SINGLE("DACR", AK4671_ROUT1_SIGNAL_SELECT, 0, 1, 0), 204 SOC_DAPM_SINGLE("RINR1", AK4671_ROUT1_SIGNAL_SELECT, 1, 1, 0), 205 SOC_DAPM_SINGLE("RINR2", AK4671_ROUT1_SIGNAL_SELECT, 2, 1, 0), 206 SOC_DAPM_SINGLE("RINR3", AK4671_ROUT1_SIGNAL_SELECT, 3, 1, 0), 207 SOC_DAPM_SINGLE("RINR4", AK4671_ROUT1_SIGNAL_SELECT, 4, 1, 0), 208 SOC_DAPM_SINGLE("LOOPR", AK4671_ROUT1_SIGNAL_SELECT, 5, 1, 0), 209}; 210 211static const struct snd_kcontrol_new ak4671_lout2_mixer_controls[] = { 212 SOC_DAPM_SINGLE("DACHL", AK4671_LOUT2_SIGNAL_SELECT, 0, 1, 0), 213 SOC_DAPM_SINGLE("LINH1", AK4671_LOUT2_SIGNAL_SELECT, 1, 1, 0), 214 SOC_DAPM_SINGLE("LINH2", AK4671_LOUT2_SIGNAL_SELECT, 2, 1, 0), 215 SOC_DAPM_SINGLE("LINH3", AK4671_LOUT2_SIGNAL_SELECT, 3, 1, 0), 216 SOC_DAPM_SINGLE("LINH4", AK4671_LOUT2_SIGNAL_SELECT, 4, 1, 0), 217 SOC_DAPM_SINGLE("LOOPHL", AK4671_LOUT2_SIGNAL_SELECT, 5, 1, 0), 218}; 219 220static const struct snd_kcontrol_new ak4671_rout2_mixer_controls[] = { 221 SOC_DAPM_SINGLE("DACHR", AK4671_ROUT2_SIGNAL_SELECT, 0, 1, 0), 222 SOC_DAPM_SINGLE("RINH1", AK4671_ROUT2_SIGNAL_SELECT, 1, 1, 0), 223 SOC_DAPM_SINGLE("RINH2", AK4671_ROUT2_SIGNAL_SELECT, 2, 1, 0), 224 SOC_DAPM_SINGLE("RINH3", AK4671_ROUT2_SIGNAL_SELECT, 3, 1, 0), 225 SOC_DAPM_SINGLE("RINH4", AK4671_ROUT2_SIGNAL_SELECT, 4, 1, 0), 226 SOC_DAPM_SINGLE("LOOPHR", AK4671_ROUT2_SIGNAL_SELECT, 5, 1, 0), 227}; 228 229static const struct snd_kcontrol_new ak4671_lout3_mixer_controls[] = { 230 SOC_DAPM_SINGLE("DACSL", AK4671_LOUT3_SIGNAL_SELECT, 0, 1, 0), 231 SOC_DAPM_SINGLE("LINS1", AK4671_LOUT3_SIGNAL_SELECT, 1, 1, 0), 232 SOC_DAPM_SINGLE("LINS2", AK4671_LOUT3_SIGNAL_SELECT, 2, 1, 0), 233 SOC_DAPM_SINGLE("LINS3", AK4671_LOUT3_SIGNAL_SELECT, 3, 1, 0), 234 SOC_DAPM_SINGLE("LINS4", AK4671_LOUT3_SIGNAL_SELECT, 4, 1, 0), 235 SOC_DAPM_SINGLE("LOOPSL", AK4671_LOUT3_SIGNAL_SELECT, 5, 1, 0), 236}; 237 238static const struct snd_kcontrol_new ak4671_rout3_mixer_controls[] = { 239 SOC_DAPM_SINGLE("DACSR", AK4671_ROUT3_SIGNAL_SELECT, 0, 1, 0), 240 SOC_DAPM_SINGLE("RINS1", AK4671_ROUT3_SIGNAL_SELECT, 1, 1, 0), 241 SOC_DAPM_SINGLE("RINS2", AK4671_ROUT3_SIGNAL_SELECT, 2, 1, 0), 242 SOC_DAPM_SINGLE("RINS3", AK4671_ROUT3_SIGNAL_SELECT, 3, 1, 0), 243 SOC_DAPM_SINGLE("RINS4", AK4671_ROUT3_SIGNAL_SELECT, 4, 1, 0), 244 SOC_DAPM_SINGLE("LOOPSR", AK4671_ROUT3_SIGNAL_SELECT, 5, 1, 0), 245}; 246 247/* Input MUXs */ 248static const char *ak4671_lin_mux_texts[] = 249 {"LIN1", "LIN2", "LIN3", "LIN4"}; 250static const struct soc_enum ak4671_lin_mux_enum = 251 SOC_ENUM_SINGLE(AK4671_MIC_SIGNAL_SELECT, 0, 252 ARRAY_SIZE(ak4671_lin_mux_texts), 253 ak4671_lin_mux_texts); 254static const struct snd_kcontrol_new ak4671_lin_mux_control = 255 SOC_DAPM_ENUM("Route", ak4671_lin_mux_enum); 256 257static const char *ak4671_rin_mux_texts[] = 258 {"RIN1", "RIN2", "RIN3", "RIN4"}; 259static const struct soc_enum ak4671_rin_mux_enum = 260 SOC_ENUM_SINGLE(AK4671_MIC_SIGNAL_SELECT, 2, 261 ARRAY_SIZE(ak4671_rin_mux_texts), 262 ak4671_rin_mux_texts); 263static const struct snd_kcontrol_new ak4671_rin_mux_control = 264 SOC_DAPM_ENUM("Route", ak4671_rin_mux_enum); 265 266static const struct snd_soc_dapm_widget ak4671_dapm_widgets[] = { 267 /* Inputs */ 268 SND_SOC_DAPM_INPUT("LIN1"), 269 SND_SOC_DAPM_INPUT("RIN1"), 270 SND_SOC_DAPM_INPUT("LIN2"), 271 SND_SOC_DAPM_INPUT("RIN2"), 272 SND_SOC_DAPM_INPUT("LIN3"), 273 SND_SOC_DAPM_INPUT("RIN3"), 274 SND_SOC_DAPM_INPUT("LIN4"), 275 SND_SOC_DAPM_INPUT("RIN4"), 276 277 /* Outputs */ 278 SND_SOC_DAPM_OUTPUT("LOUT1"), 279 SND_SOC_DAPM_OUTPUT("ROUT1"), 280 SND_SOC_DAPM_OUTPUT("LOUT2"), 281 SND_SOC_DAPM_OUTPUT("ROUT2"), 282 SND_SOC_DAPM_OUTPUT("LOUT3"), 283 SND_SOC_DAPM_OUTPUT("ROUT3"), 284 285 /* DAC */ 286 SND_SOC_DAPM_DAC("DAC Left", "Left HiFi Playback", 287 AK4671_AD_DA_POWER_MANAGEMENT, 6, 0), 288 SND_SOC_DAPM_DAC("DAC Right", "Right HiFi Playback", 289 AK4671_AD_DA_POWER_MANAGEMENT, 7, 0), 290 291 /* ADC */ 292 SND_SOC_DAPM_ADC("ADC Left", "Left HiFi Capture", 293 AK4671_AD_DA_POWER_MANAGEMENT, 4, 0), 294 SND_SOC_DAPM_ADC("ADC Right", "Right HiFi Capture", 295 AK4671_AD_DA_POWER_MANAGEMENT, 5, 0), 296 297 /* PGA */ 298 SND_SOC_DAPM_PGA("LOUT2 Mix Amp", 299 AK4671_LOUT2_POWER_MANAGERMENT, 5, 0, NULL, 0), 300 SND_SOC_DAPM_PGA("ROUT2 Mix Amp", 301 AK4671_LOUT2_POWER_MANAGERMENT, 6, 0, NULL, 0), 302 303 SND_SOC_DAPM_PGA("LIN1 Mixing Circuit", 304 AK4671_MIXING_POWER_MANAGEMENT1, 0, 0, NULL, 0), 305 SND_SOC_DAPM_PGA("RIN1 Mixing Circuit", 306 AK4671_MIXING_POWER_MANAGEMENT1, 1, 0, NULL, 0), 307 SND_SOC_DAPM_PGA("LIN2 Mixing Circuit", 308 AK4671_MIXING_POWER_MANAGEMENT1, 2, 0, NULL, 0), 309 SND_SOC_DAPM_PGA("RIN2 Mixing Circuit", 310 AK4671_MIXING_POWER_MANAGEMENT1, 3, 0, NULL, 0), 311 SND_SOC_DAPM_PGA("LIN3 Mixing Circuit", 312 AK4671_MIXING_POWER_MANAGEMENT1, 4, 0, NULL, 0), 313 SND_SOC_DAPM_PGA("RIN3 Mixing Circuit", 314 AK4671_MIXING_POWER_MANAGEMENT1, 5, 0, NULL, 0), 315 SND_SOC_DAPM_PGA("LIN4 Mixing Circuit", 316 AK4671_MIXING_POWER_MANAGEMENT1, 6, 0, NULL, 0), 317 SND_SOC_DAPM_PGA("RIN4 Mixing Circuit", 318 AK4671_MIXING_POWER_MANAGEMENT1, 7, 0, NULL, 0), 319 320 /* Output Mixers */ 321 SND_SOC_DAPM_MIXER("LOUT1 Mixer", AK4671_LOUT1_POWER_MANAGERMENT, 0, 0, 322 &ak4671_lout1_mixer_controls[0], 323 ARRAY_SIZE(ak4671_lout1_mixer_controls)), 324 SND_SOC_DAPM_MIXER("ROUT1 Mixer", AK4671_LOUT1_POWER_MANAGERMENT, 1, 0, 325 &ak4671_rout1_mixer_controls[0], 326 ARRAY_SIZE(ak4671_rout1_mixer_controls)), 327 SND_SOC_DAPM_MIXER_E("LOUT2 Mixer", AK4671_LOUT2_POWER_MANAGERMENT, 328 0, 0, &ak4671_lout2_mixer_controls[0], 329 ARRAY_SIZE(ak4671_lout2_mixer_controls), 330 ak4671_out2_event, 331 SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_PRE_PMD), 332 SND_SOC_DAPM_MIXER_E("ROUT2 Mixer", AK4671_LOUT2_POWER_MANAGERMENT, 333 1, 0, &ak4671_rout2_mixer_controls[0], 334 ARRAY_SIZE(ak4671_rout2_mixer_controls), 335 ak4671_out2_event, 336 SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_PRE_PMD), 337 SND_SOC_DAPM_MIXER("LOUT3 Mixer", AK4671_LOUT3_POWER_MANAGERMENT, 0, 0, 338 &ak4671_lout3_mixer_controls[0], 339 ARRAY_SIZE(ak4671_lout3_mixer_controls)), 340 SND_SOC_DAPM_MIXER("ROUT3 Mixer", AK4671_LOUT3_POWER_MANAGERMENT, 1, 0, 341 &ak4671_rout3_mixer_controls[0], 342 ARRAY_SIZE(ak4671_rout3_mixer_controls)), 343 344 /* Input MUXs */ 345 SND_SOC_DAPM_MUX("LIN MUX", AK4671_AD_DA_POWER_MANAGEMENT, 2, 0, 346 &ak4671_lin_mux_control), 347 SND_SOC_DAPM_MUX("RIN MUX", AK4671_AD_DA_POWER_MANAGEMENT, 3, 0, 348 &ak4671_rin_mux_control), 349 350 /* Mic Power */ 351 SND_SOC_DAPM_MICBIAS("Mic Bias", AK4671_AD_DA_POWER_MANAGEMENT, 1, 0), 352 353 /* Supply */ 354 SND_SOC_DAPM_SUPPLY("PMPLL", AK4671_PLL_MODE_SELECT1, 0, 0, NULL, 0), 355}; 356 357static const struct snd_soc_dapm_route intercon[] = { 358 {"DAC Left", "NULL", "PMPLL"}, 359 {"DAC Right", "NULL", "PMPLL"}, 360 {"ADC Left", "NULL", "PMPLL"}, 361 {"ADC Right", "NULL", "PMPLL"}, 362 363 /* Outputs */ 364 {"LOUT1", "NULL", "LOUT1 Mixer"}, 365 {"ROUT1", "NULL", "ROUT1 Mixer"}, 366 {"LOUT2", "NULL", "LOUT2 Mix Amp"}, 367 {"ROUT2", "NULL", "ROUT2 Mix Amp"}, 368 {"LOUT3", "NULL", "LOUT3 Mixer"}, 369 {"ROUT3", "NULL", "ROUT3 Mixer"}, 370 371 {"LOUT1 Mixer", "DACL", "DAC Left"}, 372 {"ROUT1 Mixer", "DACR", "DAC Right"}, 373 {"LOUT2 Mixer", "DACHL", "DAC Left"}, 374 {"ROUT2 Mixer", "DACHR", "DAC Right"}, 375 {"LOUT2 Mix Amp", "NULL", "LOUT2 Mixer"}, 376 {"ROUT2 Mix Amp", "NULL", "ROUT2 Mixer"}, 377 {"LOUT3 Mixer", "DACSL", "DAC Left"}, 378 {"ROUT3 Mixer", "DACSR", "DAC Right"}, 379 380 /* Inputs */ 381 {"LIN MUX", "LIN1", "LIN1"}, 382 {"LIN MUX", "LIN2", "LIN2"}, 383 {"LIN MUX", "LIN3", "LIN3"}, 384 {"LIN MUX", "LIN4", "LIN4"}, 385 386 {"RIN MUX", "RIN1", "RIN1"}, 387 {"RIN MUX", "RIN2", "RIN2"}, 388 {"RIN MUX", "RIN3", "RIN3"}, 389 {"RIN MUX", "RIN4", "RIN4"}, 390 391 {"LIN1", NULL, "Mic Bias"}, 392 {"RIN1", NULL, "Mic Bias"}, 393 {"LIN2", NULL, "Mic Bias"}, 394 {"RIN2", NULL, "Mic Bias"}, 395 396 {"ADC Left", "NULL", "LIN MUX"}, 397 {"ADC Right", "NULL", "RIN MUX"}, 398 399 /* Analog Loops */ 400 {"LIN1 Mixing Circuit", "NULL", "LIN1"}, 401 {"RIN1 Mixing Circuit", "NULL", "RIN1"}, 402 {"LIN2 Mixing Circuit", "NULL", "LIN2"}, 403 {"RIN2 Mixing Circuit", "NULL", "RIN2"}, 404 {"LIN3 Mixing Circuit", "NULL", "LIN3"}, 405 {"RIN3 Mixing Circuit", "NULL", "RIN3"}, 406 {"LIN4 Mixing Circuit", "NULL", "LIN4"}, 407 {"RIN4 Mixing Circuit", "NULL", "RIN4"}, 408 409 {"LOUT1 Mixer", "LINL1", "LIN1 Mixing Circuit"}, 410 {"ROUT1 Mixer", "RINR1", "RIN1 Mixing Circuit"}, 411 {"LOUT2 Mixer", "LINH1", "LIN1 Mixing Circuit"}, 412 {"ROUT2 Mixer", "RINH1", "RIN1 Mixing Circuit"}, 413 {"LOUT3 Mixer", "LINS1", "LIN1 Mixing Circuit"}, 414 {"ROUT3 Mixer", "RINS1", "RIN1 Mixing Circuit"}, 415 416 {"LOUT1 Mixer", "LINL2", "LIN2 Mixing Circuit"}, 417 {"ROUT1 Mixer", "RINR2", "RIN2 Mixing Circuit"}, 418 {"LOUT2 Mixer", "LINH2", "LIN2 Mixing Circuit"}, 419 {"ROUT2 Mixer", "RINH2", "RIN2 Mixing Circuit"}, 420 {"LOUT3 Mixer", "LINS2", "LIN2 Mixing Circuit"}, 421 {"ROUT3 Mixer", "RINS2", "RIN2 Mixing Circuit"}, 422 423 {"LOUT1 Mixer", "LINL3", "LIN3 Mixing Circuit"}, 424 {"ROUT1 Mixer", "RINR3", "RIN3 Mixing Circuit"}, 425 {"LOUT2 Mixer", "LINH3", "LIN3 Mixing Circuit"}, 426 {"ROUT2 Mixer", "RINH3", "RIN3 Mixing Circuit"}, 427 {"LOUT3 Mixer", "LINS3", "LIN3 Mixing Circuit"}, 428 {"ROUT3 Mixer", "RINS3", "RIN3 Mixing Circuit"}, 429 430 {"LOUT1 Mixer", "LINL4", "LIN4 Mixing Circuit"}, 431 {"ROUT1 Mixer", "RINR4", "RIN4 Mixing Circuit"}, 432 {"LOUT2 Mixer", "LINH4", "LIN4 Mixing Circuit"}, 433 {"ROUT2 Mixer", "RINH4", "RIN4 Mixing Circuit"}, 434 {"LOUT3 Mixer", "LINS4", "LIN4 Mixing Circuit"}, 435 {"ROUT3 Mixer", "RINS4", "RIN4 Mixing Circuit"}, 436}; 437 438static int ak4671_add_widgets(struct snd_soc_codec *codec) 439{ 440 snd_soc_dapm_new_controls(codec, ak4671_dapm_widgets, 441 ARRAY_SIZE(ak4671_dapm_widgets)); 442 443 snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); 444 445 return 0; 446} 447 448static int ak4671_hw_params(struct snd_pcm_substream *substream, 449 struct snd_pcm_hw_params *params, 450 struct snd_soc_dai *dai) 451{ 452 struct snd_soc_codec *codec = dai->codec; 453 u8 fs; 454 455 fs = snd_soc_read(codec, AK4671_PLL_MODE_SELECT0); 456 fs &= ~AK4671_FS; 457 458 switch (params_rate(params)) { 459 case 8000: 460 fs |= AK4671_FS_8KHZ; 461 break; 462 case 12000: 463 fs |= AK4671_FS_12KHZ; 464 break; 465 case 16000: 466 fs |= AK4671_FS_16KHZ; 467 break; 468 case 24000: 469 fs |= AK4671_FS_24KHZ; 470 break; 471 case 11025: 472 fs |= AK4671_FS_11_025KHZ; 473 break; 474 case 22050: 475 fs |= AK4671_FS_22_05KHZ; 476 break; 477 case 32000: 478 fs |= AK4671_FS_32KHZ; 479 break; 480 case 44100: 481 fs |= AK4671_FS_44_1KHZ; 482 break; 483 case 48000: 484 fs |= AK4671_FS_48KHZ; 485 break; 486 default: 487 return -EINVAL; 488 } 489 490 snd_soc_write(codec, AK4671_PLL_MODE_SELECT0, fs); 491 492 return 0; 493} 494 495static int ak4671_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, 496 unsigned int freq, int dir) 497{ 498 struct snd_soc_codec *codec = dai->codec; 499 u8 pll; 500 501 pll = snd_soc_read(codec, AK4671_PLL_MODE_SELECT0); 502 pll &= ~AK4671_PLL; 503 504 switch (freq) { 505 case 11289600: 506 pll |= AK4671_PLL_11_2896MHZ; 507 break; 508 case 12000000: 509 pll |= AK4671_PLL_12MHZ; 510 break; 511 case 12288000: 512 pll |= AK4671_PLL_12_288MHZ; 513 break; 514 case 13000000: 515 pll |= AK4671_PLL_13MHZ; 516 break; 517 case 13500000: 518 pll |= AK4671_PLL_13_5MHZ; 519 break; 520 case 19200000: 521 pll |= AK4671_PLL_19_2MHZ; 522 break; 523 case 24000000: 524 pll |= AK4671_PLL_24MHZ; 525 break; 526 case 26000000: 527 pll |= AK4671_PLL_26MHZ; 528 break; 529 case 27000000: 530 pll |= AK4671_PLL_27MHZ; 531 break; 532 default: 533 return -EINVAL; 534 } 535 536 snd_soc_write(codec, AK4671_PLL_MODE_SELECT0, pll); 537 538 return 0; 539} 540 541static int ak4671_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) 542{ 543 struct snd_soc_codec *codec = dai->codec; 544 u8 mode; 545 u8 format; 546 547 /* set master/slave audio interface */ 548 mode = snd_soc_read(codec, AK4671_PLL_MODE_SELECT1); 549 550 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 551 case SND_SOC_DAIFMT_CBM_CFM: 552 mode |= AK4671_M_S; 553 break; 554 case SND_SOC_DAIFMT_CBM_CFS: 555 mode &= ~(AK4671_M_S); 556 break; 557 default: 558 return -EINVAL; 559 } 560 561 /* interface format */ 562 format = snd_soc_read(codec, AK4671_FORMAT_SELECT); 563 format &= ~AK4671_DIF; 564 565 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 566 case SND_SOC_DAIFMT_I2S: 567 format |= AK4671_DIF_I2S_MODE; 568 break; 569 case SND_SOC_DAIFMT_LEFT_J: 570 format |= AK4671_DIF_MSB_MODE; 571 break; 572 case SND_SOC_DAIFMT_DSP_A: 573 format |= AK4671_DIF_DSP_MODE; 574 format |= AK4671_BCKP; 575 format |= AK4671_MSBS; 576 break; 577 default: 578 return -EINVAL; 579 } 580 581 /* set mode and format */ 582 snd_soc_write(codec, AK4671_PLL_MODE_SELECT1, mode); 583 snd_soc_write(codec, AK4671_FORMAT_SELECT, format); 584 585 return 0; 586} 587 588static int ak4671_set_bias_level(struct snd_soc_codec *codec, 589 enum snd_soc_bias_level level) 590{ 591 u8 reg; 592 593 switch (level) { 594 case SND_SOC_BIAS_ON: 595 case SND_SOC_BIAS_PREPARE: 596 case SND_SOC_BIAS_STANDBY: 597 reg = snd_soc_read(codec, AK4671_AD_DA_POWER_MANAGEMENT); 598 snd_soc_write(codec, AK4671_AD_DA_POWER_MANAGEMENT, 599 reg | AK4671_PMVCM); 600 break; 601 case SND_SOC_BIAS_OFF: 602 snd_soc_write(codec, AK4671_AD_DA_POWER_MANAGEMENT, 0x00); 603 break; 604 } 605 codec->bias_level = level; 606 return 0; 607} 608 609#define AK4671_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ 610 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ 611 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ 612 SNDRV_PCM_RATE_48000) 613 614#define AK4671_FORMATS SNDRV_PCM_FMTBIT_S16_LE 615 616static struct snd_soc_dai_ops ak4671_dai_ops = { 617 .hw_params = ak4671_hw_params, 618 .set_sysclk = ak4671_set_dai_sysclk, 619 .set_fmt = ak4671_set_dai_fmt, 620}; 621 622struct snd_soc_dai ak4671_dai = { 623 .name = "AK4671", 624 .playback = { 625 .stream_name = "Playback", 626 .channels_min = 1, 627 .channels_max = 2, 628 .rates = AK4671_RATES, 629 .formats = AK4671_FORMATS,}, 630 .capture = { 631 .stream_name = "Capture", 632 .channels_min = 1, 633 .channels_max = 2, 634 .rates = AK4671_RATES, 635 .formats = AK4671_FORMATS,}, 636 .ops = &ak4671_dai_ops, 637}; 638EXPORT_SYMBOL_GPL(ak4671_dai); 639 640static int ak4671_probe(struct platform_device *pdev) 641{ 642 struct snd_soc_device *socdev = platform_get_drvdata(pdev); 643 struct snd_soc_codec *codec; 644 int ret = 0; 645 646 if (ak4671_codec == NULL) { 647 dev_err(&pdev->dev, "Codec device not registered\n"); 648 return -ENODEV; 649 } 650 651 socdev->card->codec = ak4671_codec; 652 codec = ak4671_codec; 653 654 /* register pcms */ 655 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); 656 if (ret < 0) { 657 dev_err(codec->dev, "failed to create pcms: %d\n", ret); 658 goto pcm_err; 659 } 660 661 snd_soc_add_controls(codec, ak4671_snd_controls, 662 ARRAY_SIZE(ak4671_snd_controls)); 663 ak4671_add_widgets(codec); 664 665 ak4671_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 666 667 return ret; 668 669pcm_err: 670 return ret; 671} 672 673static int ak4671_remove(struct platform_device *pdev) 674{ 675 struct snd_soc_device *socdev = platform_get_drvdata(pdev); 676 677 snd_soc_free_pcms(socdev); 678 snd_soc_dapm_free(socdev); 679 680 return 0; 681} 682 683struct snd_soc_codec_device soc_codec_dev_ak4671 = { 684 .probe = ak4671_probe, 685 .remove = ak4671_remove, 686}; 687EXPORT_SYMBOL_GPL(soc_codec_dev_ak4671); 688 689static int ak4671_register(struct ak4671_priv *ak4671, 690 enum snd_soc_control_type control) 691{ 692 int ret; 693 struct snd_soc_codec *codec = &ak4671->codec; 694 695 if (ak4671_codec) { 696 dev_err(codec->dev, "Another AK4671 is registered\n"); 697 ret = -EINVAL; 698 goto err; 699 } 700 701 mutex_init(&codec->mutex); 702 INIT_LIST_HEAD(&codec->dapm_widgets); 703 INIT_LIST_HEAD(&codec->dapm_paths); 704 705 snd_soc_codec_set_drvdata(codec, ak4671); 706 codec->name = "AK4671"; 707 codec->owner = THIS_MODULE; 708 codec->bias_level = SND_SOC_BIAS_OFF; 709 codec->set_bias_level = ak4671_set_bias_level; 710 codec->dai = &ak4671_dai; 711 codec->num_dai = 1; 712 codec->reg_cache_size = AK4671_CACHEREGNUM; 713 codec->reg_cache = &ak4671->reg_cache; 714 715 memcpy(codec->reg_cache, ak4671_reg, sizeof(ak4671_reg)); 716 717 ret = snd_soc_codec_set_cache_io(codec, 8, 8, control); 718 if (ret < 0) { 719 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); 720 goto err; 721 } 722 723 ak4671_dai.dev = codec->dev; 724 ak4671_codec = codec; 725 726 ret = snd_soc_register_codec(codec); 727 if (ret != 0) { 728 dev_err(codec->dev, "Failed to register codec: %d\n", ret); 729 goto err; 730 } 731 732 ret = snd_soc_register_dai(&ak4671_dai); 733 if (ret != 0) { 734 dev_err(codec->dev, "Failed to register DAI: %d\n", ret); 735 goto err_codec; 736 } 737 738 return 0; 739 740err_codec: 741 snd_soc_unregister_codec(codec); 742err: 743 kfree(ak4671); 744 return ret; 745} 746 747static void ak4671_unregister(struct ak4671_priv *ak4671) 748{ 749 ak4671_set_bias_level(&ak4671->codec, SND_SOC_BIAS_OFF); 750 snd_soc_unregister_dai(&ak4671_dai); 751 snd_soc_unregister_codec(&ak4671->codec); 752 kfree(ak4671); 753 ak4671_codec = NULL; 754} 755 756static int __devinit ak4671_i2c_probe(struct i2c_client *client, 757 const struct i2c_device_id *id) 758{ 759 struct ak4671_priv *ak4671; 760 struct snd_soc_codec *codec; 761 762 ak4671 = kzalloc(sizeof(struct ak4671_priv), GFP_KERNEL); 763 if (ak4671 == NULL) 764 return -ENOMEM; 765 766 codec = &ak4671->codec; 767 codec->hw_write = (hw_write_t)i2c_master_send; 768 769 i2c_set_clientdata(client, ak4671); 770 codec->control_data = client; 771 772 codec->dev = &client->dev; 773 774 return ak4671_register(ak4671, SND_SOC_I2C); 775} 776 777static __devexit int ak4671_i2c_remove(struct i2c_client *client) 778{ 779 struct ak4671_priv *ak4671 = i2c_get_clientdata(client); 780 781 ak4671_unregister(ak4671); 782 783 return 0; 784} 785 786static const struct i2c_device_id ak4671_i2c_id[] = { 787 { "ak4671", 0 }, 788 { } 789}; 790MODULE_DEVICE_TABLE(i2c, ak4671_i2c_id); 791 792static struct i2c_driver ak4671_i2c_driver = { 793 .driver = { 794 .name = "ak4671", 795 .owner = THIS_MODULE, 796 }, 797 .probe = ak4671_i2c_probe, 798 .remove = __devexit_p(ak4671_i2c_remove), 799 .id_table = ak4671_i2c_id, 800}; 801 802static int __init ak4671_modinit(void) 803{ 804 return i2c_add_driver(&ak4671_i2c_driver); 805} 806module_init(ak4671_modinit); 807 808static void __exit ak4671_exit(void) 809{ 810 i2c_del_driver(&ak4671_i2c_driver); 811} 812module_exit(ak4671_exit); 813 814MODULE_DESCRIPTION("ASoC AK4671 codec driver"); 815MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); 816MODULE_LICENSE("GPL"); 817