1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * uda1380.c - Philips UDA1380 ALSA SoC audio driver 4 * 5 * Copyright (c) 2007-2009 Philipp Zabel <philipp.zabel@gmail.com> 6 * 7 * Modified by Richard Purdie <richard@openedhand.com> to fit into SoC 8 * codec model. 9 * 10 * Copyright (c) 2005 Giorgio Padrin <giorgio@mandarinlogiq.org> 11 * Copyright 2005 Openedhand Ltd. 12 */ 13 14 #include <linux/module.h> 15 #include <linux/init.h> 16 #include <linux/types.h> 17 #include <linux/slab.h> 18 #include <linux/errno.h> 19 #include <linux/gpio.h> 20 #include <linux/delay.h> 21 #include <linux/i2c.h> 22 #include <linux/workqueue.h> 23 #include <sound/core.h> 24 #include <sound/control.h> 25 #include <sound/initval.h> 26 #include <sound/soc.h> 27 #include <sound/tlv.h> 28 #include <sound/uda1380.h> 29 30 #include "uda1380.h" 31 32 /* codec private data */ 33 struct uda1380_priv { 34 struct snd_soc_component *component; 35 unsigned int dac_clk; 36 struct work_struct work; 37 struct i2c_client *i2c; 38 u16 *reg_cache; 39 }; 40 41 /* 42 * uda1380 register cache 43 */ 44 static const u16 uda1380_reg[UDA1380_CACHEREGNUM] = { 45 0x0502, 0x0000, 0x0000, 0x3f3f, 46 0x0202, 0x0000, 0x0000, 0x0000, 47 0x0000, 0x0000, 0x0000, 0x0000, 48 0x0000, 0x0000, 0x0000, 0x0000, 49 0x0000, 0xff00, 0x0000, 0x4800, 50 0x0000, 0x0000, 0x0000, 0x0000, 51 0x0000, 0x0000, 0x0000, 0x0000, 52 0x0000, 0x0000, 0x0000, 0x0000, 53 0x0000, 0x8000, 0x0002, 0x0000, 54 }; 55 56 static unsigned long uda1380_cache_dirty; 57 58 /* 59 * read uda1380 register cache 60 */ 61 static inline unsigned int uda1380_read_reg_cache(struct snd_soc_component *component, 62 unsigned int reg) 63 { 64 struct uda1380_priv *uda1380 = snd_soc_component_get_drvdata(component); 65 u16 *cache = uda1380->reg_cache; 66 67 if (reg == UDA1380_RESET) 68 return 0; 69 if (reg >= UDA1380_CACHEREGNUM) 70 return -1; 71 return cache[reg]; 72 } 73 74 /* 75 * write uda1380 register cache 76 */ 77 static inline void uda1380_write_reg_cache(struct snd_soc_component *component, 78 u16 reg, unsigned int value) 79 { 80 struct uda1380_priv *uda1380 = snd_soc_component_get_drvdata(component); 81 u16 *cache = uda1380->reg_cache; 82 83 if (reg >= UDA1380_CACHEREGNUM) 84 return; 85 if ((reg >= 0x10) && (cache[reg] != value)) 86 set_bit(reg - 0x10, &uda1380_cache_dirty); 87 cache[reg] = value; 88 } 89 90 /* 91 * write to the UDA1380 register space 92 */ 93 static int uda1380_write(struct snd_soc_component *component, unsigned int reg, 94 unsigned int value) 95 { 96 struct uda1380_priv *uda1380 = snd_soc_component_get_drvdata(component); 97 u8 data[3]; 98 99 /* data is 100 * data[0] is register offset 101 * data[1] is MS byte 102 * data[2] is LS byte 103 */ 104 data[0] = reg; 105 data[1] = (value & 0xff00) >> 8; 106 data[2] = value & 0x00ff; 107 108 uda1380_write_reg_cache(component, reg, value); 109 110 /* the interpolator & decimator regs must only be written when the 111 * codec DAI is active. 112 */ 113 if (!snd_soc_component_active(component) && (reg >= UDA1380_MVOL)) 114 return 0; 115 pr_debug("uda1380: hw write %x val %x\n", reg, value); 116 if (i2c_master_send(uda1380->i2c, data, 3) == 3) { 117 unsigned int val; 118 i2c_master_send(uda1380->i2c, data, 1); 119 i2c_master_recv(uda1380->i2c, data, 2); 120 val = (data[0]<<8) | data[1]; 121 if (val != value) { 122 pr_debug("uda1380: READ BACK VAL %x\n", 123 (data[0]<<8) | data[1]); 124 return -EIO; 125 } 126 if (reg >= 0x10) 127 clear_bit(reg - 0x10, &uda1380_cache_dirty); 128 return 0; 129 } else 130 return -EIO; 131 } 132 133 static void uda1380_sync_cache(struct snd_soc_component *component) 134 { 135 struct uda1380_priv *uda1380 = snd_soc_component_get_drvdata(component); 136 int reg; 137 u8 data[3]; 138 u16 *cache = uda1380->reg_cache; 139 140 /* Sync reg_cache with the hardware */ 141 for (reg = 0; reg < UDA1380_MVOL; reg++) { 142 data[0] = reg; 143 data[1] = (cache[reg] & 0xff00) >> 8; 144 data[2] = cache[reg] & 0x00ff; 145 if (i2c_master_send(uda1380->i2c, data, 3) != 3) 146 dev_err(component->dev, "%s: write to reg 0x%x failed\n", 147 __func__, reg); 148 } 149 } 150 151 static int uda1380_reset(struct snd_soc_component *component) 152 { 153 struct uda1380_platform_data *pdata = component->dev->platform_data; 154 struct uda1380_priv *uda1380 = snd_soc_component_get_drvdata(component); 155 156 if (gpio_is_valid(pdata->gpio_reset)) { 157 gpio_set_value(pdata->gpio_reset, 1); 158 mdelay(1); 159 gpio_set_value(pdata->gpio_reset, 0); 160 } else { 161 u8 data[3]; 162 163 data[0] = UDA1380_RESET; 164 data[1] = 0; 165 data[2] = 0; 166 167 if (i2c_master_send(uda1380->i2c, data, 3) != 3) { 168 dev_err(component->dev, "%s: failed\n", __func__); 169 return -EIO; 170 } 171 } 172 173 return 0; 174 } 175 176 static void uda1380_flush_work(struct work_struct *work) 177 { 178 struct uda1380_priv *uda1380 = container_of(work, struct uda1380_priv, work); 179 struct snd_soc_component *uda1380_component = uda1380->component; 180 int bit, reg; 181 182 for_each_set_bit(bit, &uda1380_cache_dirty, UDA1380_CACHEREGNUM - 0x10) { 183 reg = 0x10 + bit; 184 pr_debug("uda1380: flush reg %x val %x:\n", reg, 185 uda1380_read_reg_cache(uda1380_component, reg)); 186 uda1380_write(uda1380_component, reg, 187 uda1380_read_reg_cache(uda1380_component, reg)); 188 clear_bit(bit, &uda1380_cache_dirty); 189 } 190 191 } 192 193 /* declarations of ALSA reg_elem_REAL controls */ 194 static const char *uda1380_deemp[] = { 195 "None", 196 "32kHz", 197 "44.1kHz", 198 "48kHz", 199 "96kHz", 200 }; 201 static const char *uda1380_input_sel[] = { 202 "Line", 203 "Mic + Line R", 204 "Line L", 205 "Mic", 206 }; 207 static const char *uda1380_output_sel[] = { 208 "DAC", 209 "Analog Mixer", 210 }; 211 static const char *uda1380_spf_mode[] = { 212 "Flat", 213 "Minimum1", 214 "Minimum2", 215 "Maximum" 216 }; 217 static const char *uda1380_capture_sel[] = { 218 "ADC", 219 "Digital Mixer" 220 }; 221 static const char *uda1380_sel_ns[] = { 222 "3rd-order", 223 "5th-order" 224 }; 225 static const char *uda1380_mix_control[] = { 226 "off", 227 "PCM only", 228 "before sound processing", 229 "after sound processing" 230 }; 231 static const char *uda1380_sdet_setting[] = { 232 "3200", 233 "4800", 234 "9600", 235 "19200" 236 }; 237 static const char *uda1380_os_setting[] = { 238 "single-speed", 239 "double-speed (no mixing)", 240 "quad-speed (no mixing)" 241 }; 242 243 static const struct soc_enum uda1380_deemp_enum[] = { 244 SOC_ENUM_SINGLE(UDA1380_DEEMP, 8, ARRAY_SIZE(uda1380_deemp), 245 uda1380_deemp), 246 SOC_ENUM_SINGLE(UDA1380_DEEMP, 0, ARRAY_SIZE(uda1380_deemp), 247 uda1380_deemp), 248 }; 249 static SOC_ENUM_SINGLE_DECL(uda1380_input_sel_enum, 250 UDA1380_ADC, 2, uda1380_input_sel); /* SEL_MIC, SEL_LNA */ 251 static SOC_ENUM_SINGLE_DECL(uda1380_output_sel_enum, 252 UDA1380_PM, 7, uda1380_output_sel); /* R02_EN_AVC */ 253 static SOC_ENUM_SINGLE_DECL(uda1380_spf_enum, 254 UDA1380_MODE, 14, uda1380_spf_mode); /* M */ 255 static SOC_ENUM_SINGLE_DECL(uda1380_capture_sel_enum, 256 UDA1380_IFACE, 6, uda1380_capture_sel); /* SEL_SOURCE */ 257 static SOC_ENUM_SINGLE_DECL(uda1380_sel_ns_enum, 258 UDA1380_MIXER, 14, uda1380_sel_ns); /* SEL_NS */ 259 static SOC_ENUM_SINGLE_DECL(uda1380_mix_enum, 260 UDA1380_MIXER, 12, uda1380_mix_control); /* MIX, MIX_POS */ 261 static SOC_ENUM_SINGLE_DECL(uda1380_sdet_enum, 262 UDA1380_MIXER, 4, uda1380_sdet_setting); /* SD_VALUE */ 263 static SOC_ENUM_SINGLE_DECL(uda1380_os_enum, 264 UDA1380_MIXER, 0, uda1380_os_setting); /* OS */ 265 266 /* 267 * from -48 dB in 1.5 dB steps (mute instead of -49.5 dB) 268 */ 269 static DECLARE_TLV_DB_SCALE(amix_tlv, -4950, 150, 1); 270 271 /* 272 * from -78 dB in 1 dB steps (3 dB steps, really. LSB are ignored), 273 * from -66 dB in 0.5 dB steps (2 dB steps, really) and 274 * from -52 dB in 0.25 dB steps 275 */ 276 static const DECLARE_TLV_DB_RANGE(mvol_tlv, 277 0, 15, TLV_DB_SCALE_ITEM(-8200, 100, 1), 278 16, 43, TLV_DB_SCALE_ITEM(-6600, 50, 0), 279 44, 252, TLV_DB_SCALE_ITEM(-5200, 25, 0) 280 ); 281 282 /* 283 * from -72 dB in 1.5 dB steps (6 dB steps really), 284 * from -66 dB in 0.75 dB steps (3 dB steps really), 285 * from -60 dB in 0.5 dB steps (2 dB steps really) and 286 * from -46 dB in 0.25 dB steps 287 */ 288 static const DECLARE_TLV_DB_RANGE(vc_tlv, 289 0, 7, TLV_DB_SCALE_ITEM(-7800, 150, 1), 290 8, 15, TLV_DB_SCALE_ITEM(-6600, 75, 0), 291 16, 43, TLV_DB_SCALE_ITEM(-6000, 50, 0), 292 44, 228, TLV_DB_SCALE_ITEM(-4600, 25, 0) 293 ); 294 295 /* from 0 to 6 dB in 2 dB steps if SPF mode != flat */ 296 static DECLARE_TLV_DB_SCALE(tr_tlv, 0, 200, 0); 297 298 /* from 0 to 24 dB in 2 dB steps, if SPF mode == maximum, otherwise cuts 299 * off at 18 dB max) */ 300 static DECLARE_TLV_DB_SCALE(bb_tlv, 0, 200, 0); 301 302 /* from -63 to 24 dB in 0.5 dB steps (-128...48) */ 303 static DECLARE_TLV_DB_SCALE(dec_tlv, -6400, 50, 1); 304 305 /* from 0 to 24 dB in 3 dB steps */ 306 static DECLARE_TLV_DB_SCALE(pga_tlv, 0, 300, 0); 307 308 /* from 0 to 30 dB in 2 dB steps */ 309 static DECLARE_TLV_DB_SCALE(vga_tlv, 0, 200, 0); 310 311 static const struct snd_kcontrol_new uda1380_snd_controls[] = { 312 SOC_DOUBLE_TLV("Analog Mixer Volume", UDA1380_AMIX, 0, 8, 44, 1, amix_tlv), /* AVCR, AVCL */ 313 SOC_DOUBLE_TLV("Master Playback Volume", UDA1380_MVOL, 0, 8, 252, 1, mvol_tlv), /* MVCL, MVCR */ 314 SOC_SINGLE_TLV("ADC Playback Volume", UDA1380_MIXVOL, 8, 228, 1, vc_tlv), /* VC2 */ 315 SOC_SINGLE_TLV("PCM Playback Volume", UDA1380_MIXVOL, 0, 228, 1, vc_tlv), /* VC1 */ 316 SOC_ENUM("Sound Processing Filter", uda1380_spf_enum), /* M */ 317 SOC_DOUBLE_TLV("Tone Control - Treble", UDA1380_MODE, 4, 12, 3, 0, tr_tlv), /* TRL, TRR */ 318 SOC_DOUBLE_TLV("Tone Control - Bass", UDA1380_MODE, 0, 8, 15, 0, bb_tlv), /* BBL, BBR */ 319 /**/ SOC_SINGLE("Master Playback Switch", UDA1380_DEEMP, 14, 1, 1), /* MTM */ 320 SOC_SINGLE("ADC Playback Switch", UDA1380_DEEMP, 11, 1, 1), /* MT2 from decimation filter */ 321 SOC_ENUM("ADC Playback De-emphasis", uda1380_deemp_enum[0]), /* DE2 */ 322 SOC_SINGLE("PCM Playback Switch", UDA1380_DEEMP, 3, 1, 1), /* MT1, from digital data input */ 323 SOC_ENUM("PCM Playback De-emphasis", uda1380_deemp_enum[1]), /* DE1 */ 324 SOC_SINGLE("DAC Polarity inverting Switch", UDA1380_MIXER, 15, 1, 0), /* DA_POL_INV */ 325 SOC_ENUM("Noise Shaper", uda1380_sel_ns_enum), /* SEL_NS */ 326 SOC_ENUM("Digital Mixer Signal Control", uda1380_mix_enum), /* MIX_POS, MIX */ 327 SOC_SINGLE("Silence Detector Switch", UDA1380_MIXER, 6, 1, 0), /* SDET_ON */ 328 SOC_ENUM("Silence Detector Setting", uda1380_sdet_enum), /* SD_VALUE */ 329 SOC_ENUM("Oversampling Input", uda1380_os_enum), /* OS */ 330 SOC_DOUBLE_S8_TLV("ADC Capture Volume", UDA1380_DEC, -128, 48, dec_tlv), /* ML_DEC, MR_DEC */ 331 /**/ SOC_SINGLE("ADC Capture Switch", UDA1380_PGA, 15, 1, 1), /* MT_ADC */ 332 SOC_DOUBLE_TLV("Line Capture Volume", UDA1380_PGA, 0, 8, 8, 0, pga_tlv), /* PGA_GAINCTRLL, PGA_GAINCTRLR */ 333 SOC_SINGLE("ADC Polarity inverting Switch", UDA1380_ADC, 12, 1, 0), /* ADCPOL_INV */ 334 SOC_SINGLE_TLV("Mic Capture Volume", UDA1380_ADC, 8, 15, 0, vga_tlv), /* VGA_CTRL */ 335 SOC_SINGLE("DC Filter Bypass Switch", UDA1380_ADC, 1, 1, 0), /* SKIP_DCFIL (before decimator) */ 336 SOC_SINGLE("DC Filter Enable Switch", UDA1380_ADC, 0, 1, 0), /* EN_DCFIL (at output of decimator) */ 337 SOC_SINGLE("AGC Timing", UDA1380_AGC, 8, 7, 0), /* TODO: enum, see table 62 */ 338 SOC_SINGLE("AGC Target level", UDA1380_AGC, 2, 3, 1), /* AGC_LEVEL */ 339 /* -5.5, -8, -11.5, -14 dBFS */ 340 SOC_SINGLE("AGC Switch", UDA1380_AGC, 0, 1, 0), 341 }; 342 343 /* Input mux */ 344 static const struct snd_kcontrol_new uda1380_input_mux_control = 345 SOC_DAPM_ENUM("Route", uda1380_input_sel_enum); 346 347 /* Output mux */ 348 static const struct snd_kcontrol_new uda1380_output_mux_control = 349 SOC_DAPM_ENUM("Route", uda1380_output_sel_enum); 350 351 /* Capture mux */ 352 static const struct snd_kcontrol_new uda1380_capture_mux_control = 353 SOC_DAPM_ENUM("Route", uda1380_capture_sel_enum); 354 355 356 static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = { 357 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, 358 &uda1380_input_mux_control), 359 SND_SOC_DAPM_MUX("Output Mux", SND_SOC_NOPM, 0, 0, 360 &uda1380_output_mux_control), 361 SND_SOC_DAPM_MUX("Capture Mux", SND_SOC_NOPM, 0, 0, 362 &uda1380_capture_mux_control), 363 SND_SOC_DAPM_PGA("Left PGA", UDA1380_PM, 3, 0, NULL, 0), 364 SND_SOC_DAPM_PGA("Right PGA", UDA1380_PM, 1, 0, NULL, 0), 365 SND_SOC_DAPM_PGA("Mic LNA", UDA1380_PM, 4, 0, NULL, 0), 366 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", UDA1380_PM, 2, 0), 367 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", UDA1380_PM, 0, 0), 368 SND_SOC_DAPM_INPUT("VINM"), 369 SND_SOC_DAPM_INPUT("VINL"), 370 SND_SOC_DAPM_INPUT("VINR"), 371 SND_SOC_DAPM_MIXER("Analog Mixer", UDA1380_PM, 6, 0, NULL, 0), 372 SND_SOC_DAPM_OUTPUT("VOUTLHP"), 373 SND_SOC_DAPM_OUTPUT("VOUTRHP"), 374 SND_SOC_DAPM_OUTPUT("VOUTL"), 375 SND_SOC_DAPM_OUTPUT("VOUTR"), 376 SND_SOC_DAPM_DAC("DAC", "Playback", UDA1380_PM, 10, 0), 377 SND_SOC_DAPM_PGA("HeadPhone Driver", UDA1380_PM, 13, 0, NULL, 0), 378 }; 379 380 static const struct snd_soc_dapm_route uda1380_dapm_routes[] = { 381 382 /* output mux */ 383 {"HeadPhone Driver", NULL, "Output Mux"}, 384 {"VOUTR", NULL, "Output Mux"}, 385 {"VOUTL", NULL, "Output Mux"}, 386 387 {"Analog Mixer", NULL, "VINR"}, 388 {"Analog Mixer", NULL, "VINL"}, 389 {"Analog Mixer", NULL, "DAC"}, 390 391 {"Output Mux", "DAC", "DAC"}, 392 {"Output Mux", "Analog Mixer", "Analog Mixer"}, 393 394 /* {"DAC", "Digital Mixer", "I2S" } */ 395 396 /* headphone driver */ 397 {"VOUTLHP", NULL, "HeadPhone Driver"}, 398 {"VOUTRHP", NULL, "HeadPhone Driver"}, 399 400 /* input mux */ 401 {"Left ADC", NULL, "Input Mux"}, 402 {"Input Mux", "Mic", "Mic LNA"}, 403 {"Input Mux", "Mic + Line R", "Mic LNA"}, 404 {"Input Mux", "Line L", "Left PGA"}, 405 {"Input Mux", "Line", "Left PGA"}, 406 407 /* right input */ 408 {"Right ADC", "Mic + Line R", "Right PGA"}, 409 {"Right ADC", "Line", "Right PGA"}, 410 411 /* inputs */ 412 {"Mic LNA", NULL, "VINM"}, 413 {"Left PGA", NULL, "VINL"}, 414 {"Right PGA", NULL, "VINR"}, 415 }; 416 417 static int uda1380_set_dai_fmt_both(struct snd_soc_dai *codec_dai, 418 unsigned int fmt) 419 { 420 struct snd_soc_component *component = codec_dai->component; 421 int iface; 422 423 /* set up DAI based upon fmt */ 424 iface = uda1380_read_reg_cache(component, UDA1380_IFACE); 425 iface &= ~(R01_SFORI_MASK | R01_SIM | R01_SFORO_MASK); 426 427 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 428 case SND_SOC_DAIFMT_I2S: 429 iface |= R01_SFORI_I2S | R01_SFORO_I2S; 430 break; 431 case SND_SOC_DAIFMT_LSB: 432 iface |= R01_SFORI_LSB16 | R01_SFORO_LSB16; 433 break; 434 case SND_SOC_DAIFMT_MSB: 435 iface |= R01_SFORI_MSB | R01_SFORO_MSB; 436 } 437 438 /* DATAI is consumer only */ 439 if ((fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) != SND_SOC_DAIFMT_CBC_CFC) 440 return -EINVAL; 441 442 uda1380_write_reg_cache(component, UDA1380_IFACE, iface); 443 444 return 0; 445 } 446 447 static int uda1380_set_dai_fmt_playback(struct snd_soc_dai *codec_dai, 448 unsigned int fmt) 449 { 450 struct snd_soc_component *component = codec_dai->component; 451 int iface; 452 453 /* set up DAI based upon fmt */ 454 iface = uda1380_read_reg_cache(component, UDA1380_IFACE); 455 iface &= ~R01_SFORI_MASK; 456 457 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 458 case SND_SOC_DAIFMT_I2S: 459 iface |= R01_SFORI_I2S; 460 break; 461 case SND_SOC_DAIFMT_LSB: 462 iface |= R01_SFORI_LSB16; 463 break; 464 case SND_SOC_DAIFMT_MSB: 465 iface |= R01_SFORI_MSB; 466 } 467 468 /* DATAI is consumer only */ 469 if ((fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) != SND_SOC_DAIFMT_CBC_CFC) 470 return -EINVAL; 471 472 uda1380_write(component, UDA1380_IFACE, iface); 473 474 return 0; 475 } 476 477 static int uda1380_set_dai_fmt_capture(struct snd_soc_dai *codec_dai, 478 unsigned int fmt) 479 { 480 struct snd_soc_component *component = codec_dai->component; 481 int iface; 482 483 /* set up DAI based upon fmt */ 484 iface = uda1380_read_reg_cache(component, UDA1380_IFACE); 485 iface &= ~(R01_SIM | R01_SFORO_MASK); 486 487 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 488 case SND_SOC_DAIFMT_I2S: 489 iface |= R01_SFORO_I2S; 490 break; 491 case SND_SOC_DAIFMT_LSB: 492 iface |= R01_SFORO_LSB16; 493 break; 494 case SND_SOC_DAIFMT_MSB: 495 iface |= R01_SFORO_MSB; 496 } 497 498 if ((fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) == SND_SOC_DAIFMT_CBP_CFP) 499 iface |= R01_SIM; 500 501 uda1380_write(component, UDA1380_IFACE, iface); 502 503 return 0; 504 } 505 506 static int uda1380_trigger(struct snd_pcm_substream *substream, int cmd, 507 struct snd_soc_dai *dai) 508 { 509 struct snd_soc_component *component = dai->component; 510 struct uda1380_priv *uda1380 = snd_soc_component_get_drvdata(component); 511 int mixer = uda1380_read_reg_cache(component, UDA1380_MIXER); 512 513 switch (cmd) { 514 case SNDRV_PCM_TRIGGER_START: 515 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 516 uda1380_write_reg_cache(component, UDA1380_MIXER, 517 mixer & ~R14_SILENCE); 518 schedule_work(&uda1380->work); 519 break; 520 case SNDRV_PCM_TRIGGER_STOP: 521 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 522 uda1380_write_reg_cache(component, UDA1380_MIXER, 523 mixer | R14_SILENCE); 524 schedule_work(&uda1380->work); 525 break; 526 } 527 return 0; 528 } 529 530 static int uda1380_pcm_hw_params(struct snd_pcm_substream *substream, 531 struct snd_pcm_hw_params *params, 532 struct snd_soc_dai *dai) 533 { 534 struct snd_soc_component *component = dai->component; 535 u16 clk = uda1380_read_reg_cache(component, UDA1380_CLK); 536 537 /* set WSPLL power and divider if running from this clock */ 538 if (clk & R00_DAC_CLK) { 539 int rate = params_rate(params); 540 u16 pm = uda1380_read_reg_cache(component, UDA1380_PM); 541 clk &= ~0x3; /* clear SEL_LOOP_DIV */ 542 switch (rate) { 543 case 6250 ... 12500: 544 clk |= 0x0; 545 break; 546 case 12501 ... 25000: 547 clk |= 0x1; 548 break; 549 case 25001 ... 50000: 550 clk |= 0x2; 551 break; 552 case 50001 ... 100000: 553 clk |= 0x3; 554 break; 555 } 556 uda1380_write(component, UDA1380_PM, R02_PON_PLL | pm); 557 } 558 559 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 560 clk |= R00_EN_DAC | R00_EN_INT; 561 else 562 clk |= R00_EN_ADC | R00_EN_DEC; 563 564 uda1380_write(component, UDA1380_CLK, clk); 565 return 0; 566 } 567 568 static void uda1380_pcm_shutdown(struct snd_pcm_substream *substream, 569 struct snd_soc_dai *dai) 570 { 571 struct snd_soc_component *component = dai->component; 572 u16 clk = uda1380_read_reg_cache(component, UDA1380_CLK); 573 574 /* shut down WSPLL power if running from this clock */ 575 if (clk & R00_DAC_CLK) { 576 u16 pm = uda1380_read_reg_cache(component, UDA1380_PM); 577 uda1380_write(component, UDA1380_PM, ~R02_PON_PLL & pm); 578 } 579 580 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 581 clk &= ~(R00_EN_DAC | R00_EN_INT); 582 else 583 clk &= ~(R00_EN_ADC | R00_EN_DEC); 584 585 uda1380_write(component, UDA1380_CLK, clk); 586 } 587 588 static int uda1380_set_bias_level(struct snd_soc_component *component, 589 enum snd_soc_bias_level level) 590 { 591 int pm = uda1380_read_reg_cache(component, UDA1380_PM); 592 int reg; 593 struct uda1380_platform_data *pdata = component->dev->platform_data; 594 595 switch (level) { 596 case SND_SOC_BIAS_ON: 597 case SND_SOC_BIAS_PREPARE: 598 /* ADC, DAC on */ 599 uda1380_write(component, UDA1380_PM, R02_PON_BIAS | pm); 600 break; 601 case SND_SOC_BIAS_STANDBY: 602 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { 603 if (gpio_is_valid(pdata->gpio_power)) { 604 gpio_set_value(pdata->gpio_power, 1); 605 mdelay(1); 606 uda1380_reset(component); 607 } 608 609 uda1380_sync_cache(component); 610 } 611 uda1380_write(component, UDA1380_PM, 0x0); 612 break; 613 case SND_SOC_BIAS_OFF: 614 if (!gpio_is_valid(pdata->gpio_power)) 615 break; 616 617 gpio_set_value(pdata->gpio_power, 0); 618 619 /* Mark mixer regs cache dirty to sync them with 620 * codec regs on power on. 621 */ 622 for (reg = UDA1380_MVOL; reg < UDA1380_CACHEREGNUM; reg++) 623 set_bit(reg - 0x10, &uda1380_cache_dirty); 624 } 625 return 0; 626 } 627 628 #define UDA1380_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ 629 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ 630 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000) 631 632 static const struct snd_soc_dai_ops uda1380_dai_ops = { 633 .hw_params = uda1380_pcm_hw_params, 634 .shutdown = uda1380_pcm_shutdown, 635 .trigger = uda1380_trigger, 636 .set_fmt = uda1380_set_dai_fmt_both, 637 }; 638 639 static const struct snd_soc_dai_ops uda1380_dai_ops_playback = { 640 .hw_params = uda1380_pcm_hw_params, 641 .shutdown = uda1380_pcm_shutdown, 642 .trigger = uda1380_trigger, 643 .set_fmt = uda1380_set_dai_fmt_playback, 644 }; 645 646 static const struct snd_soc_dai_ops uda1380_dai_ops_capture = { 647 .hw_params = uda1380_pcm_hw_params, 648 .shutdown = uda1380_pcm_shutdown, 649 .trigger = uda1380_trigger, 650 .set_fmt = uda1380_set_dai_fmt_capture, 651 }; 652 653 static struct snd_soc_dai_driver uda1380_dai[] = { 654 { 655 .name = "uda1380-hifi", 656 .playback = { 657 .stream_name = "Playback", 658 .channels_min = 1, 659 .channels_max = 2, 660 .rates = UDA1380_RATES, 661 .formats = SNDRV_PCM_FMTBIT_S16_LE,}, 662 .capture = { 663 .stream_name = "Capture", 664 .channels_min = 1, 665 .channels_max = 2, 666 .rates = UDA1380_RATES, 667 .formats = SNDRV_PCM_FMTBIT_S16_LE,}, 668 .ops = &uda1380_dai_ops, 669 }, 670 { /* playback only - dual interface */ 671 .name = "uda1380-hifi-playback", 672 .playback = { 673 .stream_name = "Playback", 674 .channels_min = 1, 675 .channels_max = 2, 676 .rates = UDA1380_RATES, 677 .formats = SNDRV_PCM_FMTBIT_S16_LE, 678 }, 679 .ops = &uda1380_dai_ops_playback, 680 }, 681 { /* capture only - dual interface*/ 682 .name = "uda1380-hifi-capture", 683 .capture = { 684 .stream_name = "Capture", 685 .channels_min = 1, 686 .channels_max = 2, 687 .rates = UDA1380_RATES, 688 .formats = SNDRV_PCM_FMTBIT_S16_LE, 689 }, 690 .ops = &uda1380_dai_ops_capture, 691 }, 692 }; 693 694 static int uda1380_probe(struct snd_soc_component *component) 695 { 696 struct uda1380_platform_data *pdata =component->dev->platform_data; 697 struct uda1380_priv *uda1380 = snd_soc_component_get_drvdata(component); 698 int ret; 699 700 uda1380->component = component; 701 702 if (!gpio_is_valid(pdata->gpio_power)) { 703 ret = uda1380_reset(component); 704 if (ret) 705 return ret; 706 } 707 708 INIT_WORK(&uda1380->work, uda1380_flush_work); 709 710 /* set clock input */ 711 switch (pdata->dac_clk) { 712 case UDA1380_DAC_CLK_SYSCLK: 713 uda1380_write_reg_cache(component, UDA1380_CLK, 0); 714 break; 715 case UDA1380_DAC_CLK_WSPLL: 716 uda1380_write_reg_cache(component, UDA1380_CLK, 717 R00_DAC_CLK); 718 break; 719 } 720 721 return 0; 722 } 723 724 static const struct snd_soc_component_driver soc_component_dev_uda1380 = { 725 .probe = uda1380_probe, 726 .read = uda1380_read_reg_cache, 727 .write = uda1380_write, 728 .set_bias_level = uda1380_set_bias_level, 729 .controls = uda1380_snd_controls, 730 .num_controls = ARRAY_SIZE(uda1380_snd_controls), 731 .dapm_widgets = uda1380_dapm_widgets, 732 .num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets), 733 .dapm_routes = uda1380_dapm_routes, 734 .num_dapm_routes = ARRAY_SIZE(uda1380_dapm_routes), 735 .suspend_bias_off = 1, 736 .idle_bias_on = 1, 737 .use_pmdown_time = 1, 738 .endianness = 1, 739 }; 740 741 static int uda1380_i2c_probe(struct i2c_client *i2c) 742 { 743 struct uda1380_platform_data *pdata = i2c->dev.platform_data; 744 struct uda1380_priv *uda1380; 745 int ret; 746 747 if (!pdata) 748 return -EINVAL; 749 750 uda1380 = devm_kzalloc(&i2c->dev, sizeof(struct uda1380_priv), 751 GFP_KERNEL); 752 if (uda1380 == NULL) 753 return -ENOMEM; 754 755 if (gpio_is_valid(pdata->gpio_reset)) { 756 ret = devm_gpio_request_one(&i2c->dev, pdata->gpio_reset, 757 GPIOF_OUT_INIT_LOW, "uda1380 reset"); 758 if (ret) 759 return ret; 760 } 761 762 if (gpio_is_valid(pdata->gpio_power)) { 763 ret = devm_gpio_request_one(&i2c->dev, pdata->gpio_power, 764 GPIOF_OUT_INIT_LOW, "uda1380 power"); 765 if (ret) 766 return ret; 767 } 768 769 uda1380->reg_cache = devm_kmemdup(&i2c->dev, 770 uda1380_reg, 771 ARRAY_SIZE(uda1380_reg) * sizeof(u16), 772 GFP_KERNEL); 773 if (!uda1380->reg_cache) 774 return -ENOMEM; 775 776 i2c_set_clientdata(i2c, uda1380); 777 uda1380->i2c = i2c; 778 779 ret = devm_snd_soc_register_component(&i2c->dev, 780 &soc_component_dev_uda1380, uda1380_dai, ARRAY_SIZE(uda1380_dai)); 781 return ret; 782 } 783 784 static const struct i2c_device_id uda1380_i2c_id[] = { 785 { "uda1380", 0 }, 786 { } 787 }; 788 MODULE_DEVICE_TABLE(i2c, uda1380_i2c_id); 789 790 static const struct of_device_id uda1380_of_match[] = { 791 { .compatible = "nxp,uda1380", }, 792 { } 793 }; 794 MODULE_DEVICE_TABLE(of, uda1380_of_match); 795 796 static struct i2c_driver uda1380_i2c_driver = { 797 .driver = { 798 .name = "uda1380-codec", 799 .of_match_table = uda1380_of_match, 800 }, 801 .probe_new = uda1380_i2c_probe, 802 .id_table = uda1380_i2c_id, 803 }; 804 805 module_i2c_driver(uda1380_i2c_driver); 806 807 MODULE_AUTHOR("Giorgio Padrin"); 808 MODULE_DESCRIPTION("Audio support for codec Philips UDA1380"); 809 MODULE_LICENSE("GPL"); 810