1 /* 2 * Rockchip machine ASoC driver for boards using MAX98357A/RT5514/DA7219 3 * 4 * Copyright (c) 2016, ROCKCHIP CORPORATION. All rights reserved. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. 17 */ 18 19 #include <linux/module.h> 20 #include <linux/platform_device.h> 21 #include <linux/slab.h> 22 #include <linux/gpio.h> 23 #include <linux/of_gpio.h> 24 #include <linux/delay.h> 25 #include <linux/spi/spi.h> 26 #include <linux/i2c.h> 27 #include <linux/input.h> 28 #include <sound/core.h> 29 #include <sound/jack.h> 30 #include <sound/pcm.h> 31 #include <sound/pcm_params.h> 32 #include <sound/soc.h> 33 #include "rockchip_i2s.h" 34 #include "../codecs/da7219.h" 35 #include "../codecs/da7219-aad.h" 36 #include "../codecs/rt5514.h" 37 38 #define DRV_NAME "rk3399-gru-sound" 39 40 #define SOUND_FS 256 41 42 static unsigned int dmic_wakeup_delay; 43 44 static struct snd_soc_jack rockchip_sound_jack; 45 46 static const struct snd_soc_dapm_widget rockchip_dapm_widgets[] = { 47 SND_SOC_DAPM_HP("Headphones", NULL), 48 SND_SOC_DAPM_SPK("Speakers", NULL), 49 SND_SOC_DAPM_MIC("Headset Mic", NULL), 50 SND_SOC_DAPM_MIC("Int Mic", NULL), 51 SND_SOC_DAPM_LINE("HDMI", NULL), 52 }; 53 54 static const struct snd_kcontrol_new rockchip_controls[] = { 55 SOC_DAPM_PIN_SWITCH("Headphones"), 56 SOC_DAPM_PIN_SWITCH("Speakers"), 57 SOC_DAPM_PIN_SWITCH("Headset Mic"), 58 SOC_DAPM_PIN_SWITCH("Int Mic"), 59 SOC_DAPM_PIN_SWITCH("HDMI"), 60 }; 61 62 static int rockchip_sound_max98357a_hw_params(struct snd_pcm_substream *substream, 63 struct snd_pcm_hw_params *params) 64 { 65 struct snd_soc_pcm_runtime *rtd = substream->private_data; 66 unsigned int mclk; 67 int ret; 68 69 /* max98357a supports these sample rates */ 70 switch (params_rate(params)) { 71 case 8000: 72 case 16000: 73 case 48000: 74 case 96000: 75 mclk = params_rate(params) * SOUND_FS; 76 break; 77 default: 78 dev_err(rtd->card->dev, "%s() doesn't support this sample rate: %d\n", 79 __func__, params_rate(params)); 80 return -EINVAL; 81 } 82 83 ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, 0, mclk, 0); 84 if (ret) { 85 dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n", 86 __func__, mclk, ret); 87 return ret; 88 } 89 90 return 0; 91 } 92 93 static int rockchip_sound_rt5514_hw_params(struct snd_pcm_substream *substream, 94 struct snd_pcm_hw_params *params) 95 { 96 struct snd_soc_pcm_runtime *rtd = substream->private_data; 97 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 98 struct snd_soc_dai *codec_dai = rtd->codec_dai; 99 unsigned int mclk; 100 int ret; 101 102 mclk = params_rate(params) * SOUND_FS; 103 104 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, 105 SND_SOC_CLOCK_OUT); 106 if (ret < 0) { 107 dev_err(rtd->card->dev, "Can't set cpu clock out %d\n", ret); 108 return ret; 109 } 110 111 ret = snd_soc_dai_set_sysclk(codec_dai, RT5514_SCLK_S_MCLK, 112 mclk, SND_SOC_CLOCK_IN); 113 if (ret) { 114 dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n", 115 __func__, params_rate(params) * 512, ret); 116 return ret; 117 } 118 119 /* Wait for DMIC stable */ 120 msleep(dmic_wakeup_delay); 121 122 return 0; 123 } 124 125 static int rockchip_sound_da7219_hw_params(struct snd_pcm_substream *substream, 126 struct snd_pcm_hw_params *params) 127 { 128 struct snd_soc_pcm_runtime *rtd = substream->private_data; 129 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 130 struct snd_soc_dai *codec_dai = rtd->codec_dai; 131 int mclk, ret; 132 133 /* in bypass mode, the mclk has to be one of the frequencies below */ 134 switch (params_rate(params)) { 135 case 8000: 136 case 16000: 137 case 24000: 138 case 32000: 139 case 48000: 140 case 64000: 141 case 96000: 142 mclk = 12288000; 143 break; 144 case 11025: 145 case 22050: 146 case 44100: 147 case 88200: 148 mclk = 11289600; 149 break; 150 default: 151 return -EINVAL; 152 } 153 154 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, 155 SND_SOC_CLOCK_OUT); 156 if (ret < 0) { 157 dev_err(codec_dai->dev, "Can't set cpu clock out %d\n", ret); 158 return ret; 159 } 160 161 ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, 162 SND_SOC_CLOCK_IN); 163 if (ret < 0) { 164 dev_err(codec_dai->dev, "Can't set codec clock in %d\n", ret); 165 return ret; 166 } 167 168 ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0); 169 if (ret < 0) { 170 dev_err(codec_dai->dev, "Can't set pll sysclk mclk %d\n", ret); 171 return ret; 172 } 173 174 return 0; 175 } 176 177 static int rockchip_sound_da7219_init(struct snd_soc_pcm_runtime *rtd) 178 { 179 struct snd_soc_codec *codec = rtd->codec_dais[0]->codec; 180 struct snd_soc_dai *codec_dai = rtd->codec_dai; 181 int ret; 182 183 /* We need default MCLK and PLL settings for the accessory detection */ 184 ret = snd_soc_dai_set_sysclk(codec_dai, 0, 12288000, 185 SND_SOC_CLOCK_IN); 186 if (ret < 0) { 187 dev_err(codec_dai->dev, "Init can't set codec clock in %d\n", ret); 188 return ret; 189 } 190 191 ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0); 192 if (ret < 0) { 193 dev_err(codec_dai->dev, "Init can't set pll sysclk mclk %d\n", ret); 194 return ret; 195 } 196 197 /* Enable Headset and 4 Buttons Jack detection */ 198 ret = snd_soc_card_jack_new(rtd->card, "Headset Jack", 199 SND_JACK_HEADSET | SND_JACK_LINEOUT | 200 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 201 SND_JACK_BTN_2 | SND_JACK_BTN_3, 202 &rockchip_sound_jack, NULL, 0); 203 204 if (ret) { 205 dev_err(rtd->card->dev, "New Headset Jack failed! (%d)\n", ret); 206 return ret; 207 } 208 209 snd_jack_set_key( 210 rockchip_sound_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 211 snd_jack_set_key( 212 rockchip_sound_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP); 213 snd_jack_set_key( 214 rockchip_sound_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN); 215 snd_jack_set_key( 216 rockchip_sound_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND); 217 218 da7219_aad_jack_det(codec, &rockchip_sound_jack); 219 220 return 0; 221 } 222 223 static int rockchip_sound_cdndp_hw_params(struct snd_pcm_substream *substream, 224 struct snd_pcm_hw_params *params) 225 { 226 struct snd_soc_pcm_runtime *rtd = substream->private_data; 227 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 228 struct snd_soc_dai *codec_dai = rtd->codec_dai; 229 int mclk, ret; 230 231 /* in bypass mode, the mclk has to be one of the frequencies below */ 232 switch (params_rate(params)) { 233 case 8000: 234 case 16000: 235 case 24000: 236 case 32000: 237 case 48000: 238 case 64000: 239 case 96000: 240 mclk = 12288000; 241 break; 242 case 11025: 243 case 22050: 244 case 44100: 245 case 88200: 246 mclk = 11289600; 247 break; 248 default: 249 return -EINVAL; 250 } 251 252 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, 253 SND_SOC_CLOCK_OUT); 254 if (ret < 0) { 255 dev_err(codec_dai->dev, "Can't set cpu clock out %d\n", ret); 256 return ret; 257 } 258 259 return 0; 260 } 261 262 static int rockchip_sound_dmic_hw_params(struct snd_pcm_substream *substream, 263 struct snd_pcm_hw_params *params) 264 { 265 struct snd_soc_pcm_runtime *rtd = substream->private_data; 266 unsigned int mclk; 267 int ret; 268 269 mclk = params_rate(params) * SOUND_FS; 270 271 ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, 0, mclk, 0); 272 if (ret) { 273 dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n", 274 __func__, mclk, ret); 275 return ret; 276 } 277 278 /* Wait for DMIC stable */ 279 msleep(dmic_wakeup_delay); 280 281 return 0; 282 } 283 284 static const struct snd_soc_ops rockchip_sound_max98357a_ops = { 285 .hw_params = rockchip_sound_max98357a_hw_params, 286 }; 287 288 static const struct snd_soc_ops rockchip_sound_rt5514_ops = { 289 .hw_params = rockchip_sound_rt5514_hw_params, 290 }; 291 292 static const struct snd_soc_ops rockchip_sound_da7219_ops = { 293 .hw_params = rockchip_sound_da7219_hw_params, 294 }; 295 296 static const struct snd_soc_ops rockchip_sound_cdndp_ops = { 297 .hw_params = rockchip_sound_cdndp_hw_params, 298 }; 299 300 static const struct snd_soc_ops rockchip_sound_dmic_ops = { 301 .hw_params = rockchip_sound_dmic_hw_params, 302 }; 303 304 static struct snd_soc_card rockchip_sound_card = { 305 .name = "rk3399-gru-sound", 306 .owner = THIS_MODULE, 307 .dapm_widgets = rockchip_dapm_widgets, 308 .num_dapm_widgets = ARRAY_SIZE(rockchip_dapm_widgets), 309 .controls = rockchip_controls, 310 .num_controls = ARRAY_SIZE(rockchip_controls), 311 }; 312 313 enum { 314 DAILINK_CDNDP, 315 DAILINK_DA7219, 316 DAILINK_DMIC, 317 DAILINK_MAX98357A, 318 DAILINK_RT5514, 319 DAILINK_RT5514_DSP, 320 }; 321 322 static const struct snd_soc_dai_link rockchip_dais[] = { 323 [DAILINK_CDNDP] = { 324 .name = "DP", 325 .stream_name = "DP PCM", 326 .codec_dai_name = "i2s-hifi", 327 .ops = &rockchip_sound_cdndp_ops, 328 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 329 SND_SOC_DAIFMT_CBS_CFS, 330 }, 331 [DAILINK_DA7219] = { 332 .name = "DA7219", 333 .stream_name = "DA7219 PCM", 334 .codec_dai_name = "da7219-hifi", 335 .init = rockchip_sound_da7219_init, 336 .ops = &rockchip_sound_da7219_ops, 337 /* set da7219 as slave */ 338 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 339 SND_SOC_DAIFMT_CBS_CFS, 340 }, 341 [DAILINK_DMIC] = { 342 .name = "DMIC", 343 .stream_name = "DMIC PCM", 344 .codec_dai_name = "dmic-hifi", 345 .ops = &rockchip_sound_dmic_ops, 346 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 347 SND_SOC_DAIFMT_CBS_CFS, 348 }, 349 [DAILINK_MAX98357A] = { 350 .name = "MAX98357A", 351 .stream_name = "MAX98357A PCM", 352 .codec_dai_name = "HiFi", 353 .ops = &rockchip_sound_max98357a_ops, 354 /* set max98357a as slave */ 355 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 356 SND_SOC_DAIFMT_CBS_CFS, 357 }, 358 [DAILINK_RT5514] = { 359 .name = "RT5514", 360 .stream_name = "RT5514 PCM", 361 .codec_dai_name = "rt5514-aif1", 362 .ops = &rockchip_sound_rt5514_ops, 363 /* set rt5514 as slave */ 364 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 365 SND_SOC_DAIFMT_CBS_CFS, 366 }, 367 /* RT5514 DSP for voice wakeup via spi bus */ 368 [DAILINK_RT5514_DSP] = { 369 .name = "RT5514 DSP", 370 .stream_name = "Wake on Voice", 371 .codec_name = "snd-soc-dummy", 372 .codec_dai_name = "snd-soc-dummy-dai", 373 }, 374 }; 375 376 static const struct snd_soc_dapm_route rockchip_sound_cdndp_routes[] = { 377 /* Output */ 378 {"HDMI", NULL, "TX"}, 379 }; 380 381 static const struct snd_soc_dapm_route rockchip_sound_da7219_routes[] = { 382 /* Output */ 383 {"Headphones", NULL, "HPL"}, 384 {"Headphones", NULL, "HPR"}, 385 386 /* Input */ 387 {"MIC", NULL, "Headset Mic"}, 388 }; 389 390 static const struct snd_soc_dapm_route rockchip_sound_dmic_routes[] = { 391 /* Input */ 392 {"DMic", NULL, "Int Mic"}, 393 }; 394 395 static const struct snd_soc_dapm_route rockchip_sound_max98357a_routes[] = { 396 /* Output */ 397 {"Speakers", NULL, "Speaker"}, 398 }; 399 400 static const struct snd_soc_dapm_route rockchip_sound_rt5514_routes[] = { 401 /* Input */ 402 {"DMIC1L", NULL, "Int Mic"}, 403 {"DMIC1R", NULL, "Int Mic"}, 404 }; 405 406 struct rockchip_sound_route { 407 const struct snd_soc_dapm_route *routes; 408 int num_routes; 409 }; 410 411 static const struct rockchip_sound_route rockchip_routes[] = { 412 [DAILINK_CDNDP] = { 413 .routes = rockchip_sound_cdndp_routes, 414 .num_routes = ARRAY_SIZE(rockchip_sound_cdndp_routes), 415 }, 416 [DAILINK_DA7219] = { 417 .routes = rockchip_sound_da7219_routes, 418 .num_routes = ARRAY_SIZE(rockchip_sound_da7219_routes), 419 }, 420 [DAILINK_DMIC] = { 421 .routes = rockchip_sound_dmic_routes, 422 .num_routes = ARRAY_SIZE(rockchip_sound_dmic_routes), 423 }, 424 [DAILINK_MAX98357A] = { 425 .routes = rockchip_sound_max98357a_routes, 426 .num_routes = ARRAY_SIZE(rockchip_sound_max98357a_routes), 427 }, 428 [DAILINK_RT5514] = { 429 .routes = rockchip_sound_rt5514_routes, 430 .num_routes = ARRAY_SIZE(rockchip_sound_rt5514_routes), 431 }, 432 [DAILINK_RT5514_DSP] = {}, 433 }; 434 435 struct dailink_match_data { 436 const char *compatible; 437 struct bus_type *bus_type; 438 }; 439 440 static const struct dailink_match_data dailink_match[] = { 441 [DAILINK_CDNDP] = { 442 .compatible = "rockchip,rk3399-cdn-dp", 443 }, 444 [DAILINK_DA7219] = { 445 .compatible = "dlg,da7219", 446 }, 447 [DAILINK_DMIC] = { 448 .compatible = "dmic-codec", 449 }, 450 [DAILINK_MAX98357A] = { 451 .compatible = "maxim,max98357a", 452 }, 453 [DAILINK_RT5514] = { 454 .compatible = "realtek,rt5514", 455 .bus_type = &i2c_bus_type, 456 }, 457 [DAILINK_RT5514_DSP] = { 458 .compatible = "realtek,rt5514", 459 .bus_type = &spi_bus_type, 460 }, 461 }; 462 463 static int of_dev_node_match(struct device *dev, void *data) 464 { 465 return dev->of_node == data; 466 } 467 468 static int rockchip_sound_codec_node_match(struct device_node *np_codec) 469 { 470 struct device *dev; 471 int i; 472 473 for (i = 0; i < ARRAY_SIZE(dailink_match); i++) { 474 if (!of_device_is_compatible(np_codec, 475 dailink_match[i].compatible)) 476 continue; 477 478 if (dailink_match[i].bus_type) { 479 dev = bus_find_device(dailink_match[i].bus_type, NULL, 480 np_codec, of_dev_node_match); 481 if (!dev) 482 continue; 483 put_device(dev); 484 } 485 486 return i; 487 } 488 return -1; 489 } 490 491 static int rockchip_sound_of_parse_dais(struct device *dev, 492 struct snd_soc_card *card) 493 { 494 struct device_node *np_cpu, *np_cpu0, *np_cpu1; 495 struct device_node *np_codec; 496 struct snd_soc_dai_link *dai; 497 struct snd_soc_dapm_route *routes; 498 int i, index; 499 int num_routes; 500 501 card->dai_link = devm_kzalloc(dev, sizeof(rockchip_dais), 502 GFP_KERNEL); 503 if (!card->dai_link) 504 return -ENOMEM; 505 506 num_routes = 0; 507 for (i = 0; i < ARRAY_SIZE(rockchip_routes); i++) 508 num_routes += rockchip_routes[i].num_routes; 509 routes = devm_kzalloc(dev, num_routes * sizeof(*routes), 510 GFP_KERNEL); 511 if (!routes) 512 return -ENOMEM; 513 card->dapm_routes = routes; 514 515 np_cpu0 = of_parse_phandle(dev->of_node, "rockchip,cpu", 0); 516 np_cpu1 = of_parse_phandle(dev->of_node, "rockchip,cpu", 1); 517 518 card->num_dapm_routes = 0; 519 card->num_links = 0; 520 for (i = 0; i < ARRAY_SIZE(rockchip_dais); i++) { 521 np_codec = of_parse_phandle(dev->of_node, 522 "rockchip,codec", i); 523 if (!np_codec) 524 break; 525 526 if (!of_device_is_available(np_codec)) 527 continue; 528 529 index = rockchip_sound_codec_node_match(np_codec); 530 if (index < 0) 531 continue; 532 533 switch (index) { 534 case DAILINK_CDNDP: 535 np_cpu = np_cpu1; 536 break; 537 case DAILINK_RT5514_DSP: 538 np_cpu = np_codec; 539 break; 540 default: 541 np_cpu = np_cpu0; 542 break; 543 } 544 545 if (!np_cpu) { 546 dev_err(dev, "Missing 'rockchip,cpu' for %s\n", 547 rockchip_dais[index].name); 548 return -EINVAL; 549 } 550 551 dai = &card->dai_link[card->num_links++]; 552 *dai = rockchip_dais[index]; 553 554 if (!dai->codec_name) 555 dai->codec_of_node = np_codec; 556 dai->platform_of_node = np_cpu; 557 dai->cpu_of_node = np_cpu; 558 559 if (card->num_dapm_routes + rockchip_routes[index].num_routes > 560 num_routes) { 561 dev_err(dev, "Too many routes\n"); 562 return -EINVAL; 563 } 564 565 memcpy(routes + card->num_dapm_routes, 566 rockchip_routes[index].routes, 567 rockchip_routes[index].num_routes * sizeof(*routes)); 568 card->num_dapm_routes += rockchip_routes[index].num_routes; 569 } 570 571 return 0; 572 } 573 574 static int rockchip_sound_probe(struct platform_device *pdev) 575 { 576 struct snd_soc_card *card = &rockchip_sound_card; 577 int ret; 578 579 ret = rockchip_sound_of_parse_dais(&pdev->dev, card); 580 if (ret < 0) { 581 dev_err(&pdev->dev, "Failed to parse dais: %d\n", ret); 582 return ret; 583 } 584 585 /* Set DMIC wakeup delay */ 586 ret = device_property_read_u32(&pdev->dev, "dmic-wakeup-delay-ms", 587 &dmic_wakeup_delay); 588 if (ret) { 589 dmic_wakeup_delay = 0; 590 dev_dbg(&pdev->dev, 591 "no optional property 'dmic-wakeup-delay-ms' found, default: no delay\n"); 592 } 593 594 card->dev = &pdev->dev; 595 return devm_snd_soc_register_card(&pdev->dev, card); 596 } 597 598 static const struct of_device_id rockchip_sound_of_match[] = { 599 { .compatible = "rockchip,rk3399-gru-sound", }, 600 {}, 601 }; 602 603 static struct platform_driver rockchip_sound_driver = { 604 .probe = rockchip_sound_probe, 605 .driver = { 606 .name = DRV_NAME, 607 .of_match_table = rockchip_sound_of_match, 608 #ifdef CONFIG_PM 609 .pm = &snd_soc_pm_ops, 610 #endif 611 }, 612 }; 613 614 module_platform_driver(rockchip_sound_driver); 615 616 MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>"); 617 MODULE_DESCRIPTION("Rockchip ASoC Machine Driver"); 618 MODULE_LICENSE("GPL v2"); 619 MODULE_ALIAS("platform:" DRV_NAME); 620 MODULE_DEVICE_TABLE(of, rockchip_sound_of_match); 621