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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 | /* * ak4642.c -- AK4642/AK4643 ALSA Soc Audio driver * * Copyright (C) 2009 Renesas Solutions Corp. * Kuninori Morimoto <morimoto.kuninori@renesas.com> * * Based on wm8731.c by Richard Purdie * Based on ak4535.c by Richard Purdie * Based on wm8753.c by Liam Girdwood * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ /* ** CAUTION ** * * This is very simple driver. * It can use headphone output / stereo input only * * AK4642 is tested. * AK4643 is tested. * AK4648 is tested. */ #include <linux/delay.h> #include <linux/i2c.h> #include <linux/slab.h> #include <linux/of_device.h> #include <linux/module.h> #include <sound/soc.h> #include <sound/initval.h> #include <sound/tlv.h> #define PW_MGMT1 0x00 #define PW_MGMT2 0x01 #define SG_SL1 0x02 #define SG_SL2 0x03 #define MD_CTL1 0x04 #define MD_CTL2 0x05 #define TIMER 0x06 #define ALC_CTL1 0x07 #define ALC_CTL2 0x08 #define L_IVC 0x09 #define L_DVC 0x0a #define ALC_CTL3 0x0b #define R_IVC 0x0c #define R_DVC 0x0d #define MD_CTL3 0x0e #define MD_CTL4 0x0f #define PW_MGMT3 0x10 #define DF_S 0x11 #define FIL3_0 0x12 #define FIL3_1 0x13 #define FIL3_2 0x14 #define FIL3_3 0x15 #define EQ_0 0x16 #define EQ_1 0x17 #define EQ_2 0x18 #define EQ_3 0x19 #define EQ_4 0x1a #define EQ_5 0x1b #define FIL1_0 0x1c #define FIL1_1 0x1d #define FIL1_2 0x1e #define FIL1_3 0x1f #define PW_MGMT4 0x20 #define MD_CTL5 0x21 #define LO_MS 0x22 #define HP_MS 0x23 #define SPK_MS 0x24 /* PW_MGMT1*/ #define PMVCM (1 << 6) /* VCOM Power Management */ #define PMMIN (1 << 5) /* MIN Input Power Management */ #define PMDAC (1 << 2) /* DAC Power Management */ #define PMADL (1 << 0) /* MIC Amp Lch and ADC Lch Power Management */ /* PW_MGMT2 */ #define HPMTN (1 << 6) #define PMHPL (1 << 5) #define PMHPR (1 << 4) #define MS (1 << 3) /* master/slave select */ #define MCKO (1 << 1) #define PMPLL (1 << 0) #define PMHP_MASK (PMHPL | PMHPR) #define PMHP PMHP_MASK /* PW_MGMT3 */ #define PMADR (1 << 0) /* MIC L / ADC R Power Management */ /* SG_SL1 */ #define MINS (1 << 6) /* Switch from MIN to Speaker */ #define DACL (1 << 4) /* Switch from DAC to Stereo or Receiver */ #define PMMP (1 << 2) /* MPWR pin Power Management */ #define MGAIN0 (1 << 0) /* MIC amp gain*/ /* TIMER */ #define ZTM(param) ((param & 0x3) << 4) /* ALC Zoro Crossing TimeOut */ #define WTM(param) (((param & 0x4) << 4) | ((param & 0x3) << 2)) /* ALC_CTL1 */ #define ALC (1 << 5) /* ALC Enable */ #define LMTH0 (1 << 0) /* ALC Limiter / Recovery Level */ /* MD_CTL1 */ #define PLL3 (1 << 7) #define PLL2 (1 << 6) #define PLL1 (1 << 5) #define PLL0 (1 << 4) #define PLL_MASK (PLL3 | PLL2 | PLL1 | PLL0) #define BCKO_MASK (1 << 3) #define BCKO_64 BCKO_MASK #define DIF_MASK (3 << 0) #define DSP (0 << 0) #define RIGHT_J (1 << 0) #define LEFT_J (2 << 0) #define I2S (3 << 0) /* MD_CTL2 */ #define FS0 (1 << 0) #define FS1 (1 << 1) #define FS2 (1 << 2) #define FS3 (1 << 5) #define FS_MASK (FS0 | FS1 | FS2 | FS3) /* MD_CTL3 */ #define BST1 (1 << 3) /* MD_CTL4 */ #define DACH (1 << 0) /* * Playback Volume (table 39) * * max : 0x00 : +12.0 dB * ( 0.5 dB step ) * min : 0xFE : -115.0 dB * mute: 0xFF */ static const DECLARE_TLV_DB_SCALE(out_tlv, -11550, 50, 1); static const struct snd_kcontrol_new ak4642_snd_controls[] = { SOC_DOUBLE_R_TLV("Digital Playback Volume", L_DVC, R_DVC, 0, 0xFF, 1, out_tlv), }; static const struct snd_kcontrol_new ak4642_headphone_control = SOC_DAPM_SINGLE("Switch", PW_MGMT2, 6, 1, 0); static const struct snd_kcontrol_new ak4642_lout_mixer_controls[] = { SOC_DAPM_SINGLE("DACL", SG_SL1, 4, 1, 0), }; static const struct snd_soc_dapm_widget ak4642_dapm_widgets[] = { /* Outputs */ SND_SOC_DAPM_OUTPUT("HPOUTL"), SND_SOC_DAPM_OUTPUT("HPOUTR"), SND_SOC_DAPM_OUTPUT("LINEOUT"), SND_SOC_DAPM_PGA("HPL Out", PW_MGMT2, 5, 0, NULL, 0), SND_SOC_DAPM_PGA("HPR Out", PW_MGMT2, 4, 0, NULL, 0), SND_SOC_DAPM_SWITCH("Headphone Enable", SND_SOC_NOPM, 0, 0, &ak4642_headphone_control), SND_SOC_DAPM_PGA("DACH", MD_CTL4, 0, 0, NULL, 0), SND_SOC_DAPM_MIXER("LINEOUT Mixer", PW_MGMT1, 3, 0, &ak4642_lout_mixer_controls[0], ARRAY_SIZE(ak4642_lout_mixer_controls)), /* DAC */ SND_SOC_DAPM_DAC("DAC", "HiFi Playback", PW_MGMT1, 2, 0), }; static const struct snd_soc_dapm_route ak4642_intercon[] = { /* Outputs */ {"HPOUTL", NULL, "HPL Out"}, {"HPOUTR", NULL, "HPR Out"}, {"LINEOUT", NULL, "LINEOUT Mixer"}, {"HPL Out", NULL, "Headphone Enable"}, {"HPR Out", NULL, "Headphone Enable"}, {"Headphone Enable", "Switch", "DACH"}, {"DACH", NULL, "DAC"}, {"LINEOUT Mixer", "DACL", "DAC"}, }; /* * ak4642 register cache */ static const u8 ak4642_reg[] = { 0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0xe1, 0xe1, 0x18, 0x00, 0xe1, 0x18, 0x11, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; static const u8 ak4648_reg[] = { 0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0xe1, 0xe1, 0x18, 0x00, 0xe1, 0x18, 0x11, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x88, 0x08, }; static int ak4642_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; struct snd_soc_codec *codec = dai->codec; if (is_play) { /* * start headphone output * * PLL, Master Mode * Audio I/F Format :MSB justified (ADC & DAC) * Bass Boost Level : Middle * * This operation came from example code of * "ASAHI KASEI AK4642" (japanese) manual p97. */ snd_soc_write(codec, L_IVC, 0x91); /* volume */ snd_soc_write(codec, R_IVC, 0x91); /* volume */ } else { /* * start stereo input * * PLL Master Mode * Audio I/F Format:MSB justified (ADC & DAC) * Pre MIC AMP:+20dB * MIC Power On * ALC setting:Refer to Table 35 * ALC bit=“1” * * This operation came from example code of * "ASAHI KASEI AK4642" (japanese) manual p94. */ snd_soc_update_bits(codec, SG_SL1, PMMP | MGAIN0, PMMP | MGAIN0); snd_soc_write(codec, TIMER, ZTM(0x3) | WTM(0x3)); snd_soc_write(codec, ALC_CTL1, ALC | LMTH0); snd_soc_update_bits(codec, PW_MGMT1, PMADL, PMADL); snd_soc_update_bits(codec, PW_MGMT3, PMADR, PMADR); } return 0; } static void ak4642_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; struct snd_soc_codec *codec = dai->codec; if (is_play) { } else { /* stop stereo input */ snd_soc_update_bits(codec, PW_MGMT1, PMADL, 0); snd_soc_update_bits(codec, PW_MGMT3, PMADR, 0); snd_soc_update_bits(codec, ALC_CTL1, ALC, 0); } } static int ak4642_dai_set_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_codec *codec = codec_dai->codec; u8 pll; switch (freq) { case 11289600: pll = PLL2; break; case 12288000: pll = PLL2 | PLL0; break; case 12000000: pll = PLL2 | PLL1; break; case 24000000: pll = PLL2 | PLL1 | PLL0; break; case 13500000: pll = PLL3 | PLL2; break; case 27000000: pll = PLL3 | PLL2 | PLL0; break; default: return -EINVAL; } snd_soc_update_bits(codec, MD_CTL1, PLL_MASK, pll); return 0; } static int ak4642_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct snd_soc_codec *codec = dai->codec; u8 data; u8 bcko; data = MCKO | PMPLL; /* use MCKO */ bcko = 0; /* set master/slave audio interface */ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBM_CFM: data |= MS; bcko = BCKO_64; break; case SND_SOC_DAIFMT_CBS_CFS: break; default: return -EINVAL; } snd_soc_update_bits(codec, PW_MGMT2, MS | MCKO | PMPLL, data); snd_soc_update_bits(codec, MD_CTL1, BCKO_MASK, bcko); /* format type */ data = 0; switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_LEFT_J: data = LEFT_J; break; case SND_SOC_DAIFMT_I2S: data = I2S; break; /* FIXME * Please add RIGHT_J / DSP support here */ default: return -EINVAL; break; } snd_soc_update_bits(codec, MD_CTL1, DIF_MASK, data); return 0; } static int ak4642_dai_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; u8 rate; switch (params_rate(params)) { case 7350: rate = FS2; break; case 8000: rate = 0; break; case 11025: rate = FS2 | FS0; break; case 12000: rate = FS0; break; case 14700: rate = FS2 | FS1; break; case 16000: rate = FS1; break; case 22050: rate = FS2 | FS1 | FS0; break; case 24000: rate = FS1 | FS0; break; case 29400: rate = FS3 | FS2 | FS1; break; case 32000: rate = FS3 | FS1; break; case 44100: rate = FS3 | FS2 | FS1 | FS0; break; case 48000: rate = FS3 | FS1 | FS0; break; default: return -EINVAL; break; } snd_soc_update_bits(codec, MD_CTL2, FS_MASK, rate); return 0; } static int ak4642_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { switch (level) { case SND_SOC_BIAS_OFF: snd_soc_write(codec, PW_MGMT1, 0x00); break; default: snd_soc_update_bits(codec, PW_MGMT1, PMVCM, PMVCM); break; } codec->dapm.bias_level = level; return 0; } static const struct snd_soc_dai_ops ak4642_dai_ops = { .startup = ak4642_dai_startup, .shutdown = ak4642_dai_shutdown, .set_sysclk = ak4642_dai_set_sysclk, .set_fmt = ak4642_dai_set_fmt, .hw_params = ak4642_dai_hw_params, }; static struct snd_soc_dai_driver ak4642_dai = { .name = "ak4642-hifi", .playback = { .stream_name = "Playback", .channels_min = 1, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE }, .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE }, .ops = &ak4642_dai_ops, .symmetric_rates = 1, }; static int ak4642_resume(struct snd_soc_codec *codec) { snd_soc_cache_sync(codec); return 0; } static int ak4642_probe(struct snd_soc_codec *codec) { int ret; ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_I2C); if (ret < 0) { dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); return ret; } snd_soc_add_codec_controls(codec, ak4642_snd_controls, ARRAY_SIZE(ak4642_snd_controls)); ak4642_set_bias_level(codec, SND_SOC_BIAS_STANDBY); return 0; } static int ak4642_remove(struct snd_soc_codec *codec) { ak4642_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } static struct snd_soc_codec_driver soc_codec_dev_ak4642 = { .probe = ak4642_probe, .remove = ak4642_remove, .resume = ak4642_resume, .set_bias_level = ak4642_set_bias_level, .reg_cache_default = ak4642_reg, /* ak4642 reg */ .reg_cache_size = ARRAY_SIZE(ak4642_reg), /* ak4642 reg */ .reg_word_size = sizeof(u8), .dapm_widgets = ak4642_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(ak4642_dapm_widgets), .dapm_routes = ak4642_intercon, .num_dapm_routes = ARRAY_SIZE(ak4642_intercon), }; static struct snd_soc_codec_driver soc_codec_dev_ak4648 = { .probe = ak4642_probe, .remove = ak4642_remove, .resume = ak4642_resume, .set_bias_level = ak4642_set_bias_level, .reg_cache_default = ak4648_reg, /* ak4648 reg */ .reg_cache_size = ARRAY_SIZE(ak4648_reg), /* ak4648 reg */ .reg_word_size = sizeof(u8), .dapm_widgets = ak4642_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(ak4642_dapm_widgets), .dapm_routes = ak4642_intercon, .num_dapm_routes = ARRAY_SIZE(ak4642_intercon), }; #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) static struct of_device_id ak4642_of_match[]; static int ak4642_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct device_node *np = i2c->dev.of_node; const struct snd_soc_codec_driver *driver; driver = NULL; if (np) { const struct of_device_id *of_id; of_id = of_match_device(ak4642_of_match, &i2c->dev); if (of_id) driver = of_id->data; } else { driver = (struct snd_soc_codec_driver *)id->driver_data; } if (!driver) { dev_err(&i2c->dev, "no driver\n"); return -EINVAL; } return snd_soc_register_codec(&i2c->dev, driver, &ak4642_dai, 1); } static int ak4642_i2c_remove(struct i2c_client *client) { snd_soc_unregister_codec(&client->dev); return 0; } static struct of_device_id ak4642_of_match[] = { { .compatible = "asahi-kasei,ak4642", .data = &soc_codec_dev_ak4642}, { .compatible = "asahi-kasei,ak4643", .data = &soc_codec_dev_ak4642}, { .compatible = "asahi-kasei,ak4648", .data = &soc_codec_dev_ak4648}, {}, }; MODULE_DEVICE_TABLE(of, ak4642_of_match); static const struct i2c_device_id ak4642_i2c_id[] = { { "ak4642", (kernel_ulong_t)&soc_codec_dev_ak4642 }, { "ak4643", (kernel_ulong_t)&soc_codec_dev_ak4642 }, { "ak4648", (kernel_ulong_t)&soc_codec_dev_ak4648 }, { } }; MODULE_DEVICE_TABLE(i2c, ak4642_i2c_id); static struct i2c_driver ak4642_i2c_driver = { .driver = { .name = "ak4642-codec", .owner = THIS_MODULE, .of_match_table = ak4642_of_match, }, .probe = ak4642_i2c_probe, .remove = ak4642_i2c_remove, .id_table = ak4642_i2c_id, }; #endif static int __init ak4642_modinit(void) { int ret = 0; #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) ret = i2c_add_driver(&ak4642_i2c_driver); #endif return ret; } module_init(ak4642_modinit); static void __exit ak4642_exit(void) { #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) i2c_del_driver(&ak4642_i2c_driver); #endif } module_exit(ak4642_exit); MODULE_DESCRIPTION("Soc AK4642 driver"); MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>"); MODULE_LICENSE("GPL"); |