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/input.h> 27 #include <sound/core.h> 28 #include <sound/jack.h> 29 #include <sound/pcm.h> 30 #include <sound/pcm_params.h> 31 #include <sound/soc.h> 32 #include "rockchip_i2s.h" 33 #include "../codecs/da7219.h" 34 #include "../codecs/da7219-aad.h" 35 #include "../codecs/rt5514.h" 36 37 #define DRV_NAME "rk3399-gru-sound" 38 39 #define SOUND_FS 256 40 41 static unsigned int dmic_wakeup_delay; 42 43 static struct snd_soc_jack rockchip_sound_jack; 44 45 static const struct snd_soc_dapm_widget rockchip_dapm_widgets[] = { 46 SND_SOC_DAPM_HP("Headphones", NULL), 47 SND_SOC_DAPM_SPK("Speakers", NULL), 48 SND_SOC_DAPM_MIC("Headset Mic", NULL), 49 SND_SOC_DAPM_MIC("Int Mic", NULL), 50 }; 51 52 static const struct snd_soc_dapm_route rockchip_dapm_routes[] = { 53 /* Input Lines */ 54 {"MIC", NULL, "Headset Mic"}, 55 {"DMIC1L", NULL, "Int Mic"}, 56 {"DMIC1R", NULL, "Int Mic"}, 57 58 /* Output Lines */ 59 {"Headphones", NULL, "HPL"}, 60 {"Headphones", NULL, "HPR"}, 61 {"Speakers", NULL, "Speaker"}, 62 }; 63 64 static const struct snd_kcontrol_new rockchip_controls[] = { 65 SOC_DAPM_PIN_SWITCH("Headphones"), 66 SOC_DAPM_PIN_SWITCH("Speakers"), 67 SOC_DAPM_PIN_SWITCH("Headset Mic"), 68 SOC_DAPM_PIN_SWITCH("Int Mic"), 69 }; 70 71 static int rockchip_sound_max98357a_hw_params(struct snd_pcm_substream *substream, 72 struct snd_pcm_hw_params *params) 73 { 74 struct snd_soc_pcm_runtime *rtd = substream->private_data; 75 unsigned int mclk; 76 int ret; 77 78 /* max98357a supports these sample rates */ 79 switch (params_rate(params)) { 80 case 8000: 81 case 16000: 82 case 48000: 83 case 96000: 84 mclk = params_rate(params) * SOUND_FS; 85 break; 86 default: 87 dev_err(rtd->card->dev, "%s() doesn't support this sample rate: %d\n", 88 __func__, params_rate(params)); 89 return -EINVAL; 90 } 91 92 ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, 0, mclk, 0); 93 if (ret) { 94 dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n", 95 __func__, mclk, ret); 96 return ret; 97 } 98 99 return 0; 100 } 101 102 static int rockchip_sound_rt5514_hw_params(struct snd_pcm_substream *substream, 103 struct snd_pcm_hw_params *params) 104 { 105 struct snd_soc_pcm_runtime *rtd = substream->private_data; 106 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 107 struct snd_soc_dai *codec_dai = rtd->codec_dai; 108 unsigned int mclk; 109 int ret; 110 111 mclk = params_rate(params) * SOUND_FS; 112 113 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, 114 SND_SOC_CLOCK_OUT); 115 if (ret < 0) { 116 dev_err(rtd->card->dev, "Can't set cpu clock out %d\n", ret); 117 return ret; 118 } 119 120 ret = snd_soc_dai_set_sysclk(codec_dai, RT5514_SCLK_S_MCLK, 121 mclk, SND_SOC_CLOCK_IN); 122 if (ret) { 123 dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n", 124 __func__, params_rate(params) * 512, ret); 125 return ret; 126 } 127 128 /* Wait for DMIC stable */ 129 msleep(dmic_wakeup_delay); 130 131 return 0; 132 } 133 134 static int rockchip_sound_da7219_hw_params(struct snd_pcm_substream *substream, 135 struct snd_pcm_hw_params *params) 136 { 137 struct snd_soc_pcm_runtime *rtd = substream->private_data; 138 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 139 struct snd_soc_dai *codec_dai = rtd->codec_dai; 140 int mclk, ret; 141 142 /* in bypass mode, the mclk has to be one of the frequencies below */ 143 switch (params_rate(params)) { 144 case 8000: 145 case 16000: 146 case 24000: 147 case 32000: 148 case 48000: 149 case 64000: 150 case 96000: 151 mclk = 12288000; 152 break; 153 case 11025: 154 case 22050: 155 case 44100: 156 case 88200: 157 mclk = 11289600; 158 break; 159 default: 160 return -EINVAL; 161 } 162 163 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, 164 SND_SOC_CLOCK_OUT); 165 if (ret < 0) { 166 dev_err(codec_dai->dev, "Can't set cpu clock out %d\n", ret); 167 return ret; 168 } 169 170 ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, 171 SND_SOC_CLOCK_IN); 172 if (ret < 0) { 173 dev_err(codec_dai->dev, "Can't set codec clock in %d\n", ret); 174 return ret; 175 } 176 177 ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0); 178 if (ret < 0) { 179 dev_err(codec_dai->dev, "Can't set pll sysclk mclk %d\n", ret); 180 return ret; 181 } 182 183 return 0; 184 } 185 186 static int rockchip_sound_da7219_init(struct snd_soc_pcm_runtime *rtd) 187 { 188 struct snd_soc_codec *codec = rtd->codec_dais[0]->codec; 189 struct snd_soc_dai *codec_dai = rtd->codec_dai; 190 int ret; 191 192 /* We need default MCLK and PLL settings for the accessory detection */ 193 ret = snd_soc_dai_set_sysclk(codec_dai, 0, 12288000, 194 SND_SOC_CLOCK_IN); 195 if (ret < 0) { 196 dev_err(codec_dai->dev, "Init can't set codec clock in %d\n", ret); 197 return ret; 198 } 199 200 ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0); 201 if (ret < 0) { 202 dev_err(codec_dai->dev, "Init can't set pll sysclk mclk %d\n", ret); 203 return ret; 204 } 205 206 /* Enable Headset and 4 Buttons Jack detection */ 207 ret = snd_soc_card_jack_new(rtd->card, "Headset Jack", 208 SND_JACK_HEADSET | SND_JACK_LINEOUT | 209 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 210 SND_JACK_BTN_2 | SND_JACK_BTN_3, 211 &rockchip_sound_jack, NULL, 0); 212 213 if (ret) { 214 dev_err(rtd->card->dev, "New Headset Jack failed! (%d)\n", ret); 215 return ret; 216 } 217 218 snd_jack_set_key(rockchip_sound_jack.jack, SND_JACK_BTN_0, KEY_MEDIA); 219 snd_jack_set_key( 220 rockchip_sound_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP); 221 snd_jack_set_key( 222 rockchip_sound_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN); 223 snd_jack_set_key( 224 rockchip_sound_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND); 225 226 da7219_aad_jack_det(codec, &rockchip_sound_jack); 227 228 return 0; 229 } 230 231 static int rockchip_sound_cdndp_hw_params(struct snd_pcm_substream *substream, 232 struct snd_pcm_hw_params *params) 233 { 234 struct snd_soc_pcm_runtime *rtd = substream->private_data; 235 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 236 struct snd_soc_dai *codec_dai = rtd->codec_dai; 237 int mclk, ret; 238 239 /* in bypass mode, the mclk has to be one of the frequencies below */ 240 switch (params_rate(params)) { 241 case 8000: 242 case 16000: 243 case 24000: 244 case 32000: 245 case 48000: 246 case 64000: 247 case 96000: 248 mclk = 12288000; 249 break; 250 case 11025: 251 case 22050: 252 case 44100: 253 case 88200: 254 mclk = 11289600; 255 break; 256 default: 257 return -EINVAL; 258 } 259 260 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, 261 SND_SOC_CLOCK_OUT); 262 if (ret < 0) { 263 dev_err(codec_dai->dev, "Can't set cpu clock out %d\n", ret); 264 return ret; 265 } 266 267 return 0; 268 } 269 270 static int rockchip_sound_dmic_hw_params(struct snd_pcm_substream *substream, 271 struct snd_pcm_hw_params *params) 272 { 273 struct snd_soc_pcm_runtime *rtd = substream->private_data; 274 unsigned int mclk; 275 int ret; 276 277 mclk = params_rate(params) * SOUND_FS; 278 279 ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, 0, mclk, 0); 280 if (ret) { 281 dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n", 282 __func__, mclk, ret); 283 return ret; 284 } 285 286 /* Wait for DMIC stable */ 287 msleep(dmic_wakeup_delay); 288 289 return 0; 290 } 291 292 static const struct snd_soc_ops rockchip_sound_max98357a_ops = { 293 .hw_params = rockchip_sound_max98357a_hw_params, 294 }; 295 296 static const struct snd_soc_ops rockchip_sound_rt5514_ops = { 297 .hw_params = rockchip_sound_rt5514_hw_params, 298 }; 299 300 static const struct snd_soc_ops rockchip_sound_da7219_ops = { 301 .hw_params = rockchip_sound_da7219_hw_params, 302 }; 303 304 static const struct snd_soc_ops rockchip_sound_cdndp_ops = { 305 .hw_params = rockchip_sound_cdndp_hw_params, 306 }; 307 308 static const struct snd_soc_ops rockchip_sound_dmic_ops = { 309 .hw_params = rockchip_sound_dmic_hw_params, 310 }; 311 312 static struct snd_soc_card rockchip_sound_card = { 313 .name = "rk3399-gru-sound", 314 .owner = THIS_MODULE, 315 .dapm_widgets = rockchip_dapm_widgets, 316 .num_dapm_widgets = ARRAY_SIZE(rockchip_dapm_widgets), 317 .dapm_routes = rockchip_dapm_routes, 318 .num_dapm_routes = ARRAY_SIZE(rockchip_dapm_routes), 319 .controls = rockchip_controls, 320 .num_controls = ARRAY_SIZE(rockchip_controls), 321 }; 322 323 enum { 324 DAILINK_CDNDP, 325 DAILINK_DA7219, 326 DAILINK_DMIC, 327 DAILINK_MAX98357A, 328 DAILINK_RT5514, 329 DAILINK_RT5514_DSP, 330 }; 331 332 static const char * const dailink_compat[] = { 333 [DAILINK_CDNDP] = "rockchip,rk3399-cdn-dp", 334 [DAILINK_DA7219] = "dlg,da7219", 335 [DAILINK_DMIC] = "dmic-codec", 336 [DAILINK_MAX98357A] = "maxim,max98357a", 337 [DAILINK_RT5514] = "realtek,rt5514-i2c", 338 [DAILINK_RT5514_DSP] = "realtek,rt5514-spi", 339 }; 340 341 static const struct snd_soc_dai_link rockchip_dais[] = { 342 [DAILINK_CDNDP] = { 343 .name = "DP", 344 .stream_name = "DP PCM", 345 .codec_dai_name = "i2s-hifi", 346 .ops = &rockchip_sound_cdndp_ops, 347 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 348 SND_SOC_DAIFMT_CBS_CFS, 349 }, 350 [DAILINK_DA7219] = { 351 .name = "DA7219", 352 .stream_name = "DA7219 PCM", 353 .codec_dai_name = "da7219-hifi", 354 .init = rockchip_sound_da7219_init, 355 .ops = &rockchip_sound_da7219_ops, 356 /* set da7219 as slave */ 357 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 358 SND_SOC_DAIFMT_CBS_CFS, 359 }, 360 [DAILINK_DMIC] = { 361 .name = "DMIC", 362 .stream_name = "DMIC PCM", 363 .codec_dai_name = "dmic-hifi", 364 .ops = &rockchip_sound_dmic_ops, 365 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 366 SND_SOC_DAIFMT_CBS_CFS, 367 }, 368 [DAILINK_MAX98357A] = { 369 .name = "MAX98357A", 370 .stream_name = "MAX98357A PCM", 371 .codec_dai_name = "HiFi", 372 .ops = &rockchip_sound_max98357a_ops, 373 /* set max98357a as slave */ 374 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 375 SND_SOC_DAIFMT_CBS_CFS, 376 }, 377 [DAILINK_RT5514] = { 378 .name = "RT5514", 379 .stream_name = "RT5514 PCM", 380 .codec_dai_name = "rt5514-aif1", 381 .ops = &rockchip_sound_rt5514_ops, 382 /* set rt5514 as slave */ 383 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 384 SND_SOC_DAIFMT_CBS_CFS, 385 }, 386 /* RT5514 DSP for voice wakeup via spi bus */ 387 [DAILINK_RT5514_DSP] = { 388 .name = "RT5514 DSP", 389 .stream_name = "Wake on Voice", 390 .codec_dai_name = "rt5514-dsp-cpu-dai", 391 }, 392 }; 393 394 static int rockchip_sound_codec_node_match(struct device_node *np_codec) 395 { 396 int i; 397 398 for (i = 0; i < ARRAY_SIZE(dailink_compat); i++) { 399 if (of_device_is_compatible(np_codec, dailink_compat[i])) 400 return i; 401 } 402 return -1; 403 } 404 405 static int rockchip_sound_of_parse_dais(struct device *dev, 406 struct snd_soc_card *card) 407 { 408 struct device_node *np_cpu, *np_cpu0, *np_cpu1; 409 struct device_node *np_codec; 410 struct snd_soc_dai_link *dai; 411 int i, index; 412 413 card->dai_link = devm_kzalloc(dev, sizeof(rockchip_dais), 414 GFP_KERNEL); 415 if (!card->dai_link) 416 return -ENOMEM; 417 418 np_cpu0 = of_parse_phandle(dev->of_node, "rockchip,cpu", 0); 419 np_cpu1 = of_parse_phandle(dev->of_node, "rockchip,cpu", 1); 420 421 card->num_links = 0; 422 for (i = 0; i < ARRAY_SIZE(rockchip_dais); i++) { 423 np_codec = of_parse_phandle(dev->of_node, 424 "rockchip,codec", i); 425 if (!np_codec) 426 break; 427 428 if (!of_device_is_available(np_codec)) 429 continue; 430 431 index = rockchip_sound_codec_node_match(np_codec); 432 if (index < 0) 433 continue; 434 435 np_cpu = (index == DAILINK_CDNDP) ? np_cpu1 : np_cpu0; 436 if (!np_cpu) { 437 dev_err(dev, "Missing 'rockchip,cpu' for %s\n", 438 rockchip_dais[index].name); 439 return -EINVAL; 440 } 441 442 dai = &card->dai_link[card->num_links++]; 443 *dai = rockchip_dais[index]; 444 445 dai->codec_of_node = np_codec; 446 dai->platform_of_node = np_cpu; 447 dai->cpu_of_node = np_cpu; 448 } 449 450 return 0; 451 } 452 453 static int rockchip_sound_probe(struct platform_device *pdev) 454 { 455 struct snd_soc_card *card = &rockchip_sound_card; 456 int ret; 457 458 ret = rockchip_sound_of_parse_dais(&pdev->dev, card); 459 if (ret < 0) { 460 dev_err(&pdev->dev, "Failed to parse dais: %d\n", ret); 461 return ret; 462 } 463 464 /* Set DMIC wakeup delay */ 465 ret = device_property_read_u32(&pdev->dev, "dmic-wakeup-delay-ms", 466 &dmic_wakeup_delay); 467 if (ret) { 468 dmic_wakeup_delay = 0; 469 dev_dbg(&pdev->dev, 470 "no optional property 'dmic-wakeup-delay-ms' found, default: no delay\n"); 471 } 472 473 card->dev = &pdev->dev; 474 return devm_snd_soc_register_card(&pdev->dev, card); 475 } 476 477 static const struct of_device_id rockchip_sound_of_match[] = { 478 { .compatible = "rockchip,rk3399-gru-sound", }, 479 {}, 480 }; 481 482 static struct platform_driver rockchip_sound_driver = { 483 .probe = rockchip_sound_probe, 484 .driver = { 485 .name = DRV_NAME, 486 .of_match_table = rockchip_sound_of_match, 487 #ifdef CONFIG_PM 488 .pm = &snd_soc_pm_ops, 489 #endif 490 }, 491 }; 492 493 module_platform_driver(rockchip_sound_driver); 494 495 MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>"); 496 MODULE_DESCRIPTION("Rockchip ASoC Machine Driver"); 497 MODULE_LICENSE("GPL v2"); 498 MODULE_ALIAS("platform:" DRV_NAME); 499 MODULE_DEVICE_TABLE(of, rockchip_sound_of_match); 500