1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // simple-card-utils.c 4 // 5 // Copyright (c) 2016 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 6 7 #include <linux/clk.h> 8 #include <linux/gpio.h> 9 #include <linux/gpio/consumer.h> 10 #include <linux/module.h> 11 #include <linux/of.h> 12 #include <linux/of_gpio.h> 13 #include <linux/of_graph.h> 14 #include <sound/jack.h> 15 #include <sound/pcm_params.h> 16 #include <sound/simple_card_utils.h> 17 18 void asoc_simple_convert_fixup(struct asoc_simple_data *data, 19 struct snd_pcm_hw_params *params) 20 { 21 struct snd_interval *rate = hw_param_interval(params, 22 SNDRV_PCM_HW_PARAM_RATE); 23 struct snd_interval *channels = hw_param_interval(params, 24 SNDRV_PCM_HW_PARAM_CHANNELS); 25 26 if (data->convert_rate) 27 rate->min = 28 rate->max = data->convert_rate; 29 30 if (data->convert_channels) 31 channels->min = 32 channels->max = data->convert_channels; 33 } 34 EXPORT_SYMBOL_GPL(asoc_simple_convert_fixup); 35 36 void asoc_simple_parse_convert(struct device_node *np, 37 char *prefix, 38 struct asoc_simple_data *data) 39 { 40 char prop[128]; 41 42 if (!prefix) 43 prefix = ""; 44 45 /* sampling rate convert */ 46 snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-rate"); 47 of_property_read_u32(np, prop, &data->convert_rate); 48 49 /* channels transfer */ 50 snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-channels"); 51 of_property_read_u32(np, prop, &data->convert_channels); 52 } 53 EXPORT_SYMBOL_GPL(asoc_simple_parse_convert); 54 55 int asoc_simple_parse_daifmt(struct device *dev, 56 struct device_node *node, 57 struct device_node *codec, 58 char *prefix, 59 unsigned int *retfmt) 60 { 61 struct device_node *bitclkmaster = NULL; 62 struct device_node *framemaster = NULL; 63 unsigned int daifmt; 64 65 daifmt = snd_soc_daifmt_parse_format(node, prefix); 66 67 snd_soc_daifmt_parse_clock_provider_as_phandle(node, prefix, &bitclkmaster, &framemaster); 68 if (!bitclkmaster && !framemaster) { 69 /* 70 * No dai-link level and master setting was not found from 71 * sound node level, revert back to legacy DT parsing and 72 * take the settings from codec node. 73 */ 74 dev_dbg(dev, "Revert to legacy daifmt parsing\n"); 75 76 daifmt |= snd_soc_daifmt_parse_clock_provider_as_flag(codec, NULL); 77 } else { 78 daifmt |= snd_soc_daifmt_clock_provider_from_bitmap( 79 ((codec == bitclkmaster) << 4) | (codec == framemaster)); 80 } 81 82 of_node_put(bitclkmaster); 83 of_node_put(framemaster); 84 85 *retfmt = daifmt; 86 87 return 0; 88 } 89 EXPORT_SYMBOL_GPL(asoc_simple_parse_daifmt); 90 91 int asoc_simple_parse_tdm_width_map(struct device *dev, struct device_node *np, 92 struct asoc_simple_dai *dai) 93 { 94 u32 *array_values, *p; 95 int n, i, ret; 96 97 if (!of_property_read_bool(np, "dai-tdm-slot-width-map")) 98 return 0; 99 100 n = of_property_count_elems_of_size(np, "dai-tdm-slot-width-map", sizeof(u32)); 101 if (n % 3) { 102 dev_err(dev, "Invalid number of cells for dai-tdm-slot-width-map\n"); 103 return -EINVAL; 104 } 105 106 dai->tdm_width_map = devm_kcalloc(dev, n, sizeof(*dai->tdm_width_map), GFP_KERNEL); 107 if (!dai->tdm_width_map) 108 return -ENOMEM; 109 110 array_values = kcalloc(n, sizeof(*array_values), GFP_KERNEL); 111 if (!array_values) 112 return -ENOMEM; 113 114 ret = of_property_read_u32_array(np, "dai-tdm-slot-width-map", array_values, n); 115 if (ret < 0) { 116 dev_err(dev, "Could not read dai-tdm-slot-width-map: %d\n", ret); 117 goto out; 118 } 119 120 p = array_values; 121 for (i = 0; i < n / 3; ++i) { 122 dai->tdm_width_map[i].sample_bits = *p++; 123 dai->tdm_width_map[i].slot_width = *p++; 124 dai->tdm_width_map[i].slot_count = *p++; 125 } 126 127 dai->n_tdm_widths = i; 128 ret = 0; 129 out: 130 kfree(array_values); 131 132 return ret; 133 } 134 EXPORT_SYMBOL_GPL(asoc_simple_parse_tdm_width_map); 135 136 int asoc_simple_set_dailink_name(struct device *dev, 137 struct snd_soc_dai_link *dai_link, 138 const char *fmt, ...) 139 { 140 va_list ap; 141 char *name = NULL; 142 int ret = -ENOMEM; 143 144 va_start(ap, fmt); 145 name = devm_kvasprintf(dev, GFP_KERNEL, fmt, ap); 146 va_end(ap); 147 148 if (name) { 149 ret = 0; 150 151 dai_link->name = name; 152 dai_link->stream_name = name; 153 } 154 155 return ret; 156 } 157 EXPORT_SYMBOL_GPL(asoc_simple_set_dailink_name); 158 159 int asoc_simple_parse_card_name(struct snd_soc_card *card, 160 char *prefix) 161 { 162 int ret; 163 164 if (!prefix) 165 prefix = ""; 166 167 /* Parse the card name from DT */ 168 ret = snd_soc_of_parse_card_name(card, "label"); 169 if (ret < 0 || !card->name) { 170 char prop[128]; 171 172 snprintf(prop, sizeof(prop), "%sname", prefix); 173 ret = snd_soc_of_parse_card_name(card, prop); 174 if (ret < 0) 175 return ret; 176 } 177 178 if (!card->name && card->dai_link) 179 card->name = card->dai_link->name; 180 181 return 0; 182 } 183 EXPORT_SYMBOL_GPL(asoc_simple_parse_card_name); 184 185 static int asoc_simple_clk_enable(struct asoc_simple_dai *dai) 186 { 187 if (dai) 188 return clk_prepare_enable(dai->clk); 189 190 return 0; 191 } 192 193 static void asoc_simple_clk_disable(struct asoc_simple_dai *dai) 194 { 195 if (dai) 196 clk_disable_unprepare(dai->clk); 197 } 198 199 int asoc_simple_parse_clk(struct device *dev, 200 struct device_node *node, 201 struct asoc_simple_dai *simple_dai, 202 struct snd_soc_dai_link_component *dlc) 203 { 204 struct clk *clk; 205 u32 val; 206 207 /* 208 * Parse dai->sysclk come from "clocks = <&xxx>" 209 * (if system has common clock) 210 * or "system-clock-frequency = <xxx>" 211 * or device's module clock. 212 */ 213 clk = devm_get_clk_from_child(dev, node, NULL); 214 simple_dai->clk_fixed = of_property_read_bool( 215 node, "system-clock-fixed"); 216 if (!IS_ERR(clk)) { 217 simple_dai->sysclk = clk_get_rate(clk); 218 219 simple_dai->clk = clk; 220 } else if (!of_property_read_u32(node, "system-clock-frequency", &val)) { 221 simple_dai->sysclk = val; 222 simple_dai->clk_fixed = true; 223 } else { 224 clk = devm_get_clk_from_child(dev, dlc->of_node, NULL); 225 if (!IS_ERR(clk)) 226 simple_dai->sysclk = clk_get_rate(clk); 227 } 228 229 if (of_property_read_bool(node, "system-clock-direction-out")) 230 simple_dai->clk_direction = SND_SOC_CLOCK_OUT; 231 232 return 0; 233 } 234 EXPORT_SYMBOL_GPL(asoc_simple_parse_clk); 235 236 static int asoc_simple_check_fixed_sysclk(struct device *dev, 237 struct asoc_simple_dai *dai, 238 unsigned int *fixed_sysclk) 239 { 240 if (dai->clk_fixed) { 241 if (*fixed_sysclk && *fixed_sysclk != dai->sysclk) { 242 dev_err(dev, "inconsistent fixed sysclk rates (%u vs %u)\n", 243 *fixed_sysclk, dai->sysclk); 244 return -EINVAL; 245 } 246 *fixed_sysclk = dai->sysclk; 247 } 248 249 return 0; 250 } 251 252 int asoc_simple_startup(struct snd_pcm_substream *substream) 253 { 254 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 255 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card); 256 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num); 257 struct asoc_simple_dai *dai; 258 unsigned int fixed_sysclk = 0; 259 int i1, i2, i; 260 int ret; 261 262 for_each_prop_dai_cpu(props, i1, dai) { 263 ret = asoc_simple_clk_enable(dai); 264 if (ret) 265 goto cpu_err; 266 ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk); 267 if (ret) 268 goto cpu_err; 269 } 270 271 for_each_prop_dai_codec(props, i2, dai) { 272 ret = asoc_simple_clk_enable(dai); 273 if (ret) 274 goto codec_err; 275 ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk); 276 if (ret) 277 goto codec_err; 278 } 279 280 if (fixed_sysclk && props->mclk_fs) { 281 unsigned int fixed_rate = fixed_sysclk / props->mclk_fs; 282 283 if (fixed_sysclk % props->mclk_fs) { 284 dev_err(rtd->dev, "fixed sysclk %u not divisible by mclk_fs %u\n", 285 fixed_sysclk, props->mclk_fs); 286 return -EINVAL; 287 } 288 ret = snd_pcm_hw_constraint_minmax(substream->runtime, SNDRV_PCM_HW_PARAM_RATE, 289 fixed_rate, fixed_rate); 290 if (ret) 291 goto codec_err; 292 } 293 294 return 0; 295 296 codec_err: 297 for_each_prop_dai_codec(props, i, dai) { 298 if (i >= i2) 299 break; 300 asoc_simple_clk_disable(dai); 301 } 302 cpu_err: 303 for_each_prop_dai_cpu(props, i, dai) { 304 if (i >= i1) 305 break; 306 asoc_simple_clk_disable(dai); 307 } 308 return ret; 309 } 310 EXPORT_SYMBOL_GPL(asoc_simple_startup); 311 312 void asoc_simple_shutdown(struct snd_pcm_substream *substream) 313 { 314 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 315 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card); 316 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num); 317 struct asoc_simple_dai *dai; 318 int i; 319 320 for_each_prop_dai_cpu(props, i, dai) { 321 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, i); 322 323 if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(cpu_dai)) 324 snd_soc_dai_set_sysclk(cpu_dai, 325 0, 0, SND_SOC_CLOCK_IN); 326 327 asoc_simple_clk_disable(dai); 328 } 329 for_each_prop_dai_codec(props, i, dai) { 330 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, i); 331 332 if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(codec_dai)) 333 snd_soc_dai_set_sysclk(codec_dai, 334 0, 0, SND_SOC_CLOCK_IN); 335 336 asoc_simple_clk_disable(dai); 337 } 338 } 339 EXPORT_SYMBOL_GPL(asoc_simple_shutdown); 340 341 static int asoc_simple_set_clk_rate(struct device *dev, 342 struct asoc_simple_dai *simple_dai, 343 unsigned long rate) 344 { 345 if (!simple_dai) 346 return 0; 347 348 if (simple_dai->clk_fixed && rate != simple_dai->sysclk) { 349 dev_err(dev, "dai %s invalid clock rate %lu\n", simple_dai->name, rate); 350 return -EINVAL; 351 } 352 353 if (!simple_dai->clk) 354 return 0; 355 356 if (clk_get_rate(simple_dai->clk) == rate) 357 return 0; 358 359 return clk_set_rate(simple_dai->clk, rate); 360 } 361 362 static int asoc_simple_set_tdm(struct snd_soc_dai *dai, 363 struct asoc_simple_dai *simple_dai, 364 struct snd_pcm_hw_params *params) 365 { 366 int sample_bits = params_width(params); 367 int slot_width, slot_count; 368 int i, ret; 369 370 if (!simple_dai || !simple_dai->tdm_width_map) 371 return 0; 372 373 slot_width = simple_dai->slot_width; 374 slot_count = simple_dai->slots; 375 376 if (slot_width == 0) 377 slot_width = sample_bits; 378 379 for (i = 0; i < simple_dai->n_tdm_widths; ++i) { 380 if (simple_dai->tdm_width_map[i].sample_bits == sample_bits) { 381 slot_width = simple_dai->tdm_width_map[i].slot_width; 382 slot_count = simple_dai->tdm_width_map[i].slot_count; 383 break; 384 } 385 } 386 387 ret = snd_soc_dai_set_tdm_slot(dai, 388 simple_dai->tx_slot_mask, 389 simple_dai->rx_slot_mask, 390 slot_count, 391 slot_width); 392 if (ret && ret != -ENOTSUPP) { 393 dev_err(dai->dev, "simple-card: set_tdm_slot error: %d\n", ret); 394 return ret; 395 } 396 397 return 0; 398 } 399 400 int asoc_simple_hw_params(struct snd_pcm_substream *substream, 401 struct snd_pcm_hw_params *params) 402 { 403 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 404 struct asoc_simple_dai *pdai; 405 struct snd_soc_dai *sdai; 406 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card); 407 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num); 408 unsigned int mclk, mclk_fs = 0; 409 int i, ret; 410 411 if (props->mclk_fs) 412 mclk_fs = props->mclk_fs; 413 414 if (mclk_fs) { 415 struct snd_soc_component *component; 416 mclk = params_rate(params) * mclk_fs; 417 418 for_each_prop_dai_codec(props, i, pdai) { 419 ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk); 420 if (ret < 0) 421 return ret; 422 } 423 424 for_each_prop_dai_cpu(props, i, pdai) { 425 ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk); 426 if (ret < 0) 427 return ret; 428 } 429 430 /* Ensure sysclk is set on all components in case any 431 * (such as platform components) are missed by calls to 432 * snd_soc_dai_set_sysclk. 433 */ 434 for_each_rtd_components(rtd, i, component) { 435 ret = snd_soc_component_set_sysclk(component, 0, 0, 436 mclk, SND_SOC_CLOCK_IN); 437 if (ret && ret != -ENOTSUPP) 438 return ret; 439 } 440 441 for_each_rtd_codec_dais(rtd, i, sdai) { 442 ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_IN); 443 if (ret && ret != -ENOTSUPP) 444 return ret; 445 } 446 447 for_each_rtd_cpu_dais(rtd, i, sdai) { 448 ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_OUT); 449 if (ret && ret != -ENOTSUPP) 450 return ret; 451 } 452 } 453 454 for_each_prop_dai_codec(props, i, pdai) { 455 sdai = asoc_rtd_to_codec(rtd, i); 456 ret = asoc_simple_set_tdm(sdai, pdai, params); 457 if (ret < 0) 458 return ret; 459 } 460 461 for_each_prop_dai_cpu(props, i, pdai) { 462 sdai = asoc_rtd_to_cpu(rtd, i); 463 ret = asoc_simple_set_tdm(sdai, pdai, params); 464 if (ret < 0) 465 return ret; 466 } 467 468 return 0; 469 } 470 EXPORT_SYMBOL_GPL(asoc_simple_hw_params); 471 472 int asoc_simple_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 473 struct snd_pcm_hw_params *params) 474 { 475 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card); 476 struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num); 477 478 asoc_simple_convert_fixup(&dai_props->adata, params); 479 480 return 0; 481 } 482 EXPORT_SYMBOL_GPL(asoc_simple_be_hw_params_fixup); 483 484 static int asoc_simple_init_dai(struct snd_soc_dai *dai, 485 struct asoc_simple_dai *simple_dai) 486 { 487 int ret; 488 489 if (!simple_dai) 490 return 0; 491 492 if (simple_dai->sysclk) { 493 ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk, 494 simple_dai->clk_direction); 495 if (ret && ret != -ENOTSUPP) { 496 dev_err(dai->dev, "simple-card: set_sysclk error\n"); 497 return ret; 498 } 499 } 500 501 if (simple_dai->slots) { 502 ret = snd_soc_dai_set_tdm_slot(dai, 503 simple_dai->tx_slot_mask, 504 simple_dai->rx_slot_mask, 505 simple_dai->slots, 506 simple_dai->slot_width); 507 if (ret && ret != -ENOTSUPP) { 508 dev_err(dai->dev, "simple-card: set_tdm_slot error\n"); 509 return ret; 510 } 511 } 512 513 return 0; 514 } 515 516 static int asoc_simple_init_dai_link_params(struct snd_soc_pcm_runtime *rtd, 517 struct simple_dai_props *dai_props) 518 { 519 struct snd_soc_dai_link *dai_link = rtd->dai_link; 520 struct snd_soc_component *component; 521 struct snd_soc_pcm_stream *params; 522 struct snd_pcm_hardware hw; 523 int i, ret, stream; 524 525 /* Only Codecs */ 526 for_each_rtd_components(rtd, i, component) { 527 if (!snd_soc_component_is_codec(component)) 528 return 0; 529 } 530 531 /* Assumes the capabilities are the same for all supported streams */ 532 for_each_pcm_streams(stream) { 533 ret = snd_soc_runtime_calc_hw(rtd, &hw, stream); 534 if (ret == 0) 535 break; 536 } 537 538 if (ret < 0) { 539 dev_err(rtd->dev, "simple-card: no valid dai_link params\n"); 540 return ret; 541 } 542 543 params = devm_kzalloc(rtd->dev, sizeof(*params), GFP_KERNEL); 544 if (!params) 545 return -ENOMEM; 546 547 params->formats = hw.formats; 548 params->rates = hw.rates; 549 params->rate_min = hw.rate_min; 550 params->rate_max = hw.rate_max; 551 params->channels_min = hw.channels_min; 552 params->channels_max = hw.channels_max; 553 554 dai_link->params = params; 555 dai_link->num_params = 1; 556 557 return 0; 558 } 559 560 int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd) 561 { 562 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card); 563 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num); 564 struct asoc_simple_dai *dai; 565 int i, ret; 566 567 for_each_prop_dai_codec(props, i, dai) { 568 ret = asoc_simple_init_dai(asoc_rtd_to_codec(rtd, i), dai); 569 if (ret < 0) 570 return ret; 571 } 572 for_each_prop_dai_cpu(props, i, dai) { 573 ret = asoc_simple_init_dai(asoc_rtd_to_cpu(rtd, i), dai); 574 if (ret < 0) 575 return ret; 576 } 577 578 ret = asoc_simple_init_dai_link_params(rtd, props); 579 if (ret < 0) 580 return ret; 581 582 return 0; 583 } 584 EXPORT_SYMBOL_GPL(asoc_simple_dai_init); 585 586 void asoc_simple_canonicalize_platform(struct snd_soc_dai_link_component *platforms, 587 struct snd_soc_dai_link_component *cpus) 588 { 589 /* Assumes platform == cpu */ 590 if (!platforms->of_node) 591 platforms->of_node = cpus->of_node; 592 } 593 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform); 594 595 void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link_component *cpus, 596 int is_single_links) 597 { 598 /* 599 * In soc_bind_dai_link() will check cpu name after 600 * of_node matching if dai_link has cpu_dai_name. 601 * but, it will never match if name was created by 602 * fmt_single_name() remove cpu_dai_name if cpu_args 603 * was 0. See: 604 * fmt_single_name() 605 * fmt_multiple_name() 606 */ 607 if (is_single_links) 608 cpus->dai_name = NULL; 609 } 610 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_cpu); 611 612 int asoc_simple_clean_reference(struct snd_soc_card *card) 613 { 614 struct snd_soc_dai_link *dai_link; 615 struct snd_soc_dai_link_component *cpu; 616 struct snd_soc_dai_link_component *codec; 617 int i, j; 618 619 for_each_card_prelinks(card, i, dai_link) { 620 for_each_link_cpus(dai_link, j, cpu) 621 of_node_put(cpu->of_node); 622 for_each_link_codecs(dai_link, j, codec) 623 of_node_put(codec->of_node); 624 } 625 return 0; 626 } 627 EXPORT_SYMBOL_GPL(asoc_simple_clean_reference); 628 629 int asoc_simple_parse_routing(struct snd_soc_card *card, 630 char *prefix) 631 { 632 struct device_node *node = card->dev->of_node; 633 char prop[128]; 634 635 if (!prefix) 636 prefix = ""; 637 638 snprintf(prop, sizeof(prop), "%s%s", prefix, "routing"); 639 640 if (!of_property_read_bool(node, prop)) 641 return 0; 642 643 return snd_soc_of_parse_audio_routing(card, prop); 644 } 645 EXPORT_SYMBOL_GPL(asoc_simple_parse_routing); 646 647 int asoc_simple_parse_widgets(struct snd_soc_card *card, 648 char *prefix) 649 { 650 struct device_node *node = card->dev->of_node; 651 char prop[128]; 652 653 if (!prefix) 654 prefix = ""; 655 656 snprintf(prop, sizeof(prop), "%s%s", prefix, "widgets"); 657 658 if (of_property_read_bool(node, prop)) 659 return snd_soc_of_parse_audio_simple_widgets(card, prop); 660 661 /* no widgets is not error */ 662 return 0; 663 } 664 EXPORT_SYMBOL_GPL(asoc_simple_parse_widgets); 665 666 int asoc_simple_parse_pin_switches(struct snd_soc_card *card, 667 char *prefix) 668 { 669 char prop[128]; 670 671 if (!prefix) 672 prefix = ""; 673 674 snprintf(prop, sizeof(prop), "%s%s", prefix, "pin-switches"); 675 676 return snd_soc_of_parse_pin_switches(card, prop); 677 } 678 EXPORT_SYMBOL_GPL(asoc_simple_parse_pin_switches); 679 680 int asoc_simple_init_jack(struct snd_soc_card *card, 681 struct asoc_simple_jack *sjack, 682 int is_hp, char *prefix, 683 char *pin) 684 { 685 struct device *dev = card->dev; 686 enum of_gpio_flags flags; 687 char prop[128]; 688 char *pin_name; 689 char *gpio_name; 690 int mask; 691 int det; 692 693 if (!prefix) 694 prefix = ""; 695 696 sjack->gpio.gpio = -ENOENT; 697 698 if (is_hp) { 699 snprintf(prop, sizeof(prop), "%shp-det-gpio", prefix); 700 pin_name = pin ? pin : "Headphones"; 701 gpio_name = "Headphone detection"; 702 mask = SND_JACK_HEADPHONE; 703 } else { 704 snprintf(prop, sizeof(prop), "%smic-det-gpio", prefix); 705 pin_name = pin ? pin : "Mic Jack"; 706 gpio_name = "Mic detection"; 707 mask = SND_JACK_MICROPHONE; 708 } 709 710 det = of_get_named_gpio_flags(dev->of_node, prop, 0, &flags); 711 if (det == -EPROBE_DEFER) 712 return -EPROBE_DEFER; 713 714 if (gpio_is_valid(det)) { 715 sjack->pin.pin = pin_name; 716 sjack->pin.mask = mask; 717 718 sjack->gpio.name = gpio_name; 719 sjack->gpio.report = mask; 720 sjack->gpio.gpio = det; 721 sjack->gpio.invert = !!(flags & OF_GPIO_ACTIVE_LOW); 722 sjack->gpio.debounce_time = 150; 723 724 snd_soc_card_jack_new(card, pin_name, mask, 725 &sjack->jack, 726 &sjack->pin, 1); 727 728 snd_soc_jack_add_gpios(&sjack->jack, 1, 729 &sjack->gpio); 730 } 731 732 return 0; 733 } 734 EXPORT_SYMBOL_GPL(asoc_simple_init_jack); 735 736 int asoc_simple_init_priv(struct asoc_simple_priv *priv, 737 struct link_info *li) 738 { 739 struct snd_soc_card *card = simple_priv_to_card(priv); 740 struct device *dev = simple_priv_to_dev(priv); 741 struct snd_soc_dai_link *dai_link; 742 struct simple_dai_props *dai_props; 743 struct asoc_simple_dai *dais; 744 struct snd_soc_dai_link_component *dlcs; 745 struct snd_soc_codec_conf *cconf = NULL; 746 struct snd_soc_pcm_stream *c2c_conf = NULL; 747 int i, dai_num = 0, dlc_num = 0, cnf_num = 0, c2c_num = 0; 748 749 dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL); 750 dai_link = devm_kcalloc(dev, li->link, sizeof(*dai_link), GFP_KERNEL); 751 if (!dai_props || !dai_link) 752 return -ENOMEM; 753 754 /* 755 * dais (= CPU+Codec) 756 * dlcs (= CPU+Codec+Platform) 757 */ 758 for (i = 0; i < li->link; i++) { 759 int cc = li->num[i].cpus + li->num[i].codecs; 760 761 dai_num += cc; 762 dlc_num += cc + li->num[i].platforms; 763 764 if (!li->num[i].cpus) 765 cnf_num += li->num[i].codecs; 766 767 c2c_num += li->num[i].c2c; 768 } 769 770 dais = devm_kcalloc(dev, dai_num, sizeof(*dais), GFP_KERNEL); 771 dlcs = devm_kcalloc(dev, dlc_num, sizeof(*dlcs), GFP_KERNEL); 772 if (!dais || !dlcs) 773 return -ENOMEM; 774 775 if (cnf_num) { 776 cconf = devm_kcalloc(dev, cnf_num, sizeof(*cconf), GFP_KERNEL); 777 if (!cconf) 778 return -ENOMEM; 779 } 780 781 if (c2c_num) { 782 c2c_conf = devm_kcalloc(dev, c2c_num, sizeof(*c2c_conf), GFP_KERNEL); 783 if (!c2c_conf) 784 return -ENOMEM; 785 } 786 787 dev_dbg(dev, "link %d, dais %d, ccnf %d\n", 788 li->link, dai_num, cnf_num); 789 790 /* dummy CPU/Codec */ 791 priv->dummy.of_node = NULL; 792 priv->dummy.dai_name = "snd-soc-dummy-dai"; 793 priv->dummy.name = "snd-soc-dummy"; 794 795 priv->dai_props = dai_props; 796 priv->dai_link = dai_link; 797 priv->dais = dais; 798 priv->dlcs = dlcs; 799 priv->codec_conf = cconf; 800 priv->c2c_conf = c2c_conf; 801 802 card->dai_link = priv->dai_link; 803 card->num_links = li->link; 804 card->codec_conf = cconf; 805 card->num_configs = cnf_num; 806 807 for (i = 0; i < li->link; i++) { 808 if (li->num[i].cpus) { 809 /* Normal CPU */ 810 dai_props[i].cpus = 811 dai_link[i].cpus = dlcs; 812 dai_props[i].num.cpus = 813 dai_link[i].num_cpus = li->num[i].cpus; 814 dai_props[i].cpu_dai = dais; 815 816 dlcs += li->num[i].cpus; 817 dais += li->num[i].cpus; 818 819 if (li->num[i].c2c) { 820 /* Codec2Codec */ 821 dai_props[i].c2c_conf = c2c_conf; 822 c2c_conf += li->num[i].c2c; 823 } 824 } else { 825 /* DPCM Be's CPU = dummy */ 826 dai_props[i].cpus = 827 dai_link[i].cpus = &priv->dummy; 828 dai_props[i].num.cpus = 829 dai_link[i].num_cpus = 1; 830 } 831 832 if (li->num[i].codecs) { 833 /* Normal Codec */ 834 dai_props[i].codecs = 835 dai_link[i].codecs = dlcs; 836 dai_props[i].num.codecs = 837 dai_link[i].num_codecs = li->num[i].codecs; 838 dai_props[i].codec_dai = dais; 839 840 dlcs += li->num[i].codecs; 841 dais += li->num[i].codecs; 842 843 if (!li->num[i].cpus) { 844 /* DPCM Be's Codec */ 845 dai_props[i].codec_conf = cconf; 846 cconf += li->num[i].codecs; 847 } 848 } else { 849 /* DPCM Fe's Codec = dummy */ 850 dai_props[i].codecs = 851 dai_link[i].codecs = &priv->dummy; 852 dai_props[i].num.codecs = 853 dai_link[i].num_codecs = 1; 854 } 855 856 if (li->num[i].platforms) { 857 /* Have Platform */ 858 dai_props[i].platforms = 859 dai_link[i].platforms = dlcs; 860 dai_props[i].num.platforms = 861 dai_link[i].num_platforms = li->num[i].platforms; 862 863 dlcs += li->num[i].platforms; 864 } else { 865 /* Doesn't have Platform */ 866 dai_props[i].platforms = 867 dai_link[i].platforms = NULL; 868 dai_props[i].num.platforms = 869 dai_link[i].num_platforms = 0; 870 } 871 } 872 873 return 0; 874 } 875 EXPORT_SYMBOL_GPL(asoc_simple_init_priv); 876 877 int asoc_simple_remove(struct platform_device *pdev) 878 { 879 struct snd_soc_card *card = platform_get_drvdata(pdev); 880 881 return asoc_simple_clean_reference(card); 882 } 883 EXPORT_SYMBOL_GPL(asoc_simple_remove); 884 885 int asoc_graph_card_probe(struct snd_soc_card *card) 886 { 887 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(card); 888 int ret; 889 890 ret = asoc_simple_init_hp(card, &priv->hp_jack, NULL); 891 if (ret < 0) 892 return ret; 893 894 ret = asoc_simple_init_mic(card, &priv->mic_jack, NULL); 895 if (ret < 0) 896 return ret; 897 898 return 0; 899 } 900 EXPORT_SYMBOL_GPL(asoc_graph_card_probe); 901 902 int asoc_graph_is_ports0(struct device_node *np) 903 { 904 struct device_node *port, *ports, *ports0, *top; 905 int ret; 906 907 /* np is "endpoint" or "port" */ 908 if (of_node_name_eq(np, "endpoint")) { 909 port = of_get_parent(np); 910 } else { 911 port = np; 912 of_node_get(port); 913 } 914 915 ports = of_get_parent(port); 916 top = of_get_parent(ports); 917 ports0 = of_get_child_by_name(top, "ports"); 918 919 ret = ports0 == ports; 920 921 of_node_put(port); 922 of_node_put(ports); 923 of_node_put(ports0); 924 of_node_put(top); 925 926 return ret; 927 } 928 EXPORT_SYMBOL_GPL(asoc_graph_is_ports0); 929 930 /* Module information */ 931 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); 932 MODULE_DESCRIPTION("ALSA SoC Simple Card Utils"); 933 MODULE_LICENSE("GPL v2"); 934