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/simple_card_utils.h> 16 17 void asoc_simple_convert_fixup(struct asoc_simple_data *data, 18 struct snd_pcm_hw_params *params) 19 { 20 struct snd_interval *rate = hw_param_interval(params, 21 SNDRV_PCM_HW_PARAM_RATE); 22 struct snd_interval *channels = hw_param_interval(params, 23 SNDRV_PCM_HW_PARAM_CHANNELS); 24 25 if (data->convert_rate) 26 rate->min = 27 rate->max = data->convert_rate; 28 29 if (data->convert_channels) 30 channels->min = 31 channels->max = data->convert_channels; 32 } 33 EXPORT_SYMBOL_GPL(asoc_simple_convert_fixup); 34 35 void asoc_simple_parse_convert(struct device_node *np, 36 char *prefix, 37 struct asoc_simple_data *data) 38 { 39 char prop[128]; 40 41 if (!prefix) 42 prefix = ""; 43 44 /* sampling rate convert */ 45 snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-rate"); 46 of_property_read_u32(np, prop, &data->convert_rate); 47 48 /* channels transfer */ 49 snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-channels"); 50 of_property_read_u32(np, prop, &data->convert_channels); 51 } 52 EXPORT_SYMBOL_GPL(asoc_simple_parse_convert); 53 54 int asoc_simple_parse_daifmt(struct device *dev, 55 struct device_node *node, 56 struct device_node *codec, 57 char *prefix, 58 unsigned int *retfmt) 59 { 60 struct device_node *bitclkmaster = NULL; 61 struct device_node *framemaster = NULL; 62 unsigned int daifmt; 63 64 daifmt = snd_soc_of_parse_daifmt(node, prefix, 65 &bitclkmaster, &framemaster); 66 daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK; 67 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_of_parse_daifmt(codec, NULL, NULL, NULL) | 77 (daifmt & ~SND_SOC_DAIFMT_CLOCK_MASK); 78 } else { 79 if (codec == bitclkmaster) 80 daifmt |= (codec == framemaster) ? 81 SND_SOC_DAIFMT_CBM_CFM : SND_SOC_DAIFMT_CBM_CFS; 82 else 83 daifmt |= (codec == framemaster) ? 84 SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS; 85 } 86 87 of_node_put(bitclkmaster); 88 of_node_put(framemaster); 89 90 *retfmt = daifmt; 91 92 return 0; 93 } 94 EXPORT_SYMBOL_GPL(asoc_simple_parse_daifmt); 95 96 int asoc_simple_set_dailink_name(struct device *dev, 97 struct snd_soc_dai_link *dai_link, 98 const char *fmt, ...) 99 { 100 va_list ap; 101 char *name = NULL; 102 int ret = -ENOMEM; 103 104 va_start(ap, fmt); 105 name = devm_kvasprintf(dev, GFP_KERNEL, fmt, ap); 106 va_end(ap); 107 108 if (name) { 109 ret = 0; 110 111 dai_link->name = name; 112 dai_link->stream_name = name; 113 } 114 115 return ret; 116 } 117 EXPORT_SYMBOL_GPL(asoc_simple_set_dailink_name); 118 119 int asoc_simple_parse_card_name(struct snd_soc_card *card, 120 char *prefix) 121 { 122 int ret; 123 124 if (!prefix) 125 prefix = ""; 126 127 /* Parse the card name from DT */ 128 ret = snd_soc_of_parse_card_name(card, "label"); 129 if (ret < 0 || !card->name) { 130 char prop[128]; 131 132 snprintf(prop, sizeof(prop), "%sname", prefix); 133 ret = snd_soc_of_parse_card_name(card, prop); 134 if (ret < 0) 135 return ret; 136 } 137 138 if (!card->name && card->dai_link) 139 card->name = card->dai_link->name; 140 141 return 0; 142 } 143 EXPORT_SYMBOL_GPL(asoc_simple_parse_card_name); 144 145 static int asoc_simple_clk_enable(struct asoc_simple_dai *dai) 146 { 147 if (dai) 148 return clk_prepare_enable(dai->clk); 149 150 return 0; 151 } 152 153 static void asoc_simple_clk_disable(struct asoc_simple_dai *dai) 154 { 155 if (dai) 156 clk_disable_unprepare(dai->clk); 157 } 158 159 int asoc_simple_parse_clk(struct device *dev, 160 struct device_node *node, 161 struct asoc_simple_dai *simple_dai, 162 struct snd_soc_dai_link_component *dlc) 163 { 164 struct clk *clk; 165 u32 val; 166 167 /* 168 * Parse dai->sysclk come from "clocks = <&xxx>" 169 * (if system has common clock) 170 * or "system-clock-frequency = <xxx>" 171 * or device's module clock. 172 */ 173 clk = devm_get_clk_from_child(dev, node, NULL); 174 if (!IS_ERR(clk)) { 175 simple_dai->sysclk = clk_get_rate(clk); 176 177 simple_dai->clk = clk; 178 } else if (!of_property_read_u32(node, "system-clock-frequency", &val)) { 179 simple_dai->sysclk = val; 180 } else { 181 clk = devm_get_clk_from_child(dev, dlc->of_node, NULL); 182 if (!IS_ERR(clk)) 183 simple_dai->sysclk = clk_get_rate(clk); 184 } 185 186 if (of_property_read_bool(node, "system-clock-direction-out")) 187 simple_dai->clk_direction = SND_SOC_CLOCK_OUT; 188 189 return 0; 190 } 191 EXPORT_SYMBOL_GPL(asoc_simple_parse_clk); 192 193 int asoc_simple_startup(struct snd_pcm_substream *substream) 194 { 195 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 196 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card); 197 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num); 198 struct asoc_simple_dai *dai; 199 int i1, i2, i; 200 int ret; 201 202 for_each_prop_dai_cpu(props, i1, dai) { 203 ret = asoc_simple_clk_enable(dai); 204 if (ret) 205 goto cpu_err; 206 } 207 208 for_each_prop_dai_codec(props, i2, dai) { 209 ret = asoc_simple_clk_enable(dai); 210 if (ret) 211 goto codec_err; 212 } 213 214 return 0; 215 216 codec_err: 217 for_each_prop_dai_codec(props, i, dai) { 218 if (i >= i2) 219 break; 220 asoc_simple_clk_disable(dai); 221 } 222 cpu_err: 223 for_each_prop_dai_cpu(props, i, dai) { 224 if (i >= i1) 225 break; 226 asoc_simple_clk_disable(dai); 227 } 228 return ret; 229 } 230 EXPORT_SYMBOL_GPL(asoc_simple_startup); 231 232 void asoc_simple_shutdown(struct snd_pcm_substream *substream) 233 { 234 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 235 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); 236 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); 237 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card); 238 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num); 239 struct asoc_simple_dai *dai; 240 int i; 241 242 if (props->mclk_fs) { 243 snd_soc_dai_set_sysclk(codec_dai, 0, 0, SND_SOC_CLOCK_IN); 244 snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_OUT); 245 } 246 247 for_each_prop_dai_cpu(props, i, dai) 248 asoc_simple_clk_disable(dai); 249 for_each_prop_dai_codec(props, i, dai) 250 asoc_simple_clk_disable(dai); 251 } 252 EXPORT_SYMBOL_GPL(asoc_simple_shutdown); 253 254 static int asoc_simple_set_clk_rate(struct asoc_simple_dai *simple_dai, 255 unsigned long rate) 256 { 257 if (!simple_dai) 258 return 0; 259 260 if (!simple_dai->clk) 261 return 0; 262 263 if (clk_get_rate(simple_dai->clk) == rate) 264 return 0; 265 266 return clk_set_rate(simple_dai->clk, rate); 267 } 268 269 int asoc_simple_hw_params(struct snd_pcm_substream *substream, 270 struct snd_pcm_hw_params *params) 271 { 272 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 273 struct asoc_simple_dai *pdai; 274 struct snd_soc_dai *sdai; 275 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card); 276 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num); 277 unsigned int mclk, mclk_fs = 0; 278 int i, ret; 279 280 if (props->mclk_fs) 281 mclk_fs = props->mclk_fs; 282 283 if (mclk_fs) { 284 mclk = params_rate(params) * mclk_fs; 285 286 for_each_prop_dai_codec(props, i, pdai) { 287 ret = asoc_simple_set_clk_rate(pdai, mclk); 288 if (ret < 0) 289 return ret; 290 } 291 for_each_prop_dai_cpu(props, i, pdai) { 292 ret = asoc_simple_set_clk_rate(pdai, mclk); 293 if (ret < 0) 294 return ret; 295 } 296 for_each_rtd_codec_dais(rtd, i, sdai) { 297 ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_IN); 298 if (ret && ret != -ENOTSUPP) 299 return ret; 300 } 301 for_each_rtd_cpu_dais(rtd, i, sdai) { 302 ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_OUT); 303 if (ret && ret != -ENOTSUPP) 304 return ret; 305 } 306 } 307 return 0; 308 } 309 EXPORT_SYMBOL_GPL(asoc_simple_hw_params); 310 311 int asoc_simple_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 312 struct snd_pcm_hw_params *params) 313 { 314 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card); 315 struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num); 316 317 asoc_simple_convert_fixup(&dai_props->adata, params); 318 319 return 0; 320 } 321 EXPORT_SYMBOL_GPL(asoc_simple_be_hw_params_fixup); 322 323 static int asoc_simple_init_dai(struct snd_soc_dai *dai, 324 struct asoc_simple_dai *simple_dai) 325 { 326 int ret; 327 328 if (!simple_dai) 329 return 0; 330 331 if (simple_dai->sysclk) { 332 ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk, 333 simple_dai->clk_direction); 334 if (ret && ret != -ENOTSUPP) { 335 dev_err(dai->dev, "simple-card: set_sysclk error\n"); 336 return ret; 337 } 338 } 339 340 if (simple_dai->slots) { 341 ret = snd_soc_dai_set_tdm_slot(dai, 342 simple_dai->tx_slot_mask, 343 simple_dai->rx_slot_mask, 344 simple_dai->slots, 345 simple_dai->slot_width); 346 if (ret && ret != -ENOTSUPP) { 347 dev_err(dai->dev, "simple-card: set_tdm_slot error\n"); 348 return ret; 349 } 350 } 351 352 return 0; 353 } 354 355 static int asoc_simple_init_dai_link_params(struct snd_soc_pcm_runtime *rtd, 356 struct simple_dai_props *dai_props) 357 { 358 struct snd_soc_dai_link *dai_link = rtd->dai_link; 359 struct snd_soc_component *component; 360 struct snd_soc_pcm_stream *params; 361 struct snd_pcm_hardware hw; 362 int i, ret, stream; 363 364 /* Only codecs should have non_legacy_dai_naming set. */ 365 for_each_rtd_components(rtd, i, component) { 366 if (!component->driver->non_legacy_dai_naming) 367 return 0; 368 } 369 370 /* Assumes the capabilities are the same for all supported streams */ 371 for_each_pcm_streams(stream) { 372 ret = snd_soc_runtime_calc_hw(rtd, &hw, stream); 373 if (ret == 0) 374 break; 375 } 376 377 if (ret < 0) { 378 dev_err(rtd->dev, "simple-card: no valid dai_link params\n"); 379 return ret; 380 } 381 382 params = devm_kzalloc(rtd->dev, sizeof(*params), GFP_KERNEL); 383 if (!params) 384 return -ENOMEM; 385 386 params->formats = hw.formats; 387 params->rates = hw.rates; 388 params->rate_min = hw.rate_min; 389 params->rate_max = hw.rate_max; 390 params->channels_min = hw.channels_min; 391 params->channels_max = hw.channels_max; 392 393 dai_link->params = params; 394 dai_link->num_params = 1; 395 396 return 0; 397 } 398 399 int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd) 400 { 401 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card); 402 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num); 403 struct asoc_simple_dai *dai; 404 int i, ret; 405 406 for_each_prop_dai_codec(props, i, dai) { 407 ret = asoc_simple_init_dai(asoc_rtd_to_codec(rtd, i), dai); 408 if (ret < 0) 409 return ret; 410 } 411 for_each_prop_dai_cpu(props, i, dai) { 412 ret = asoc_simple_init_dai(asoc_rtd_to_cpu(rtd, i), dai); 413 if (ret < 0) 414 return ret; 415 } 416 417 ret = asoc_simple_init_dai_link_params(rtd, props); 418 if (ret < 0) 419 return ret; 420 421 return 0; 422 } 423 EXPORT_SYMBOL_GPL(asoc_simple_dai_init); 424 425 void asoc_simple_canonicalize_platform(struct snd_soc_dai_link_component *platforms, 426 struct snd_soc_dai_link_component *cpus) 427 { 428 /* Assumes platform == cpu */ 429 if (!platforms->of_node) 430 platforms->of_node = cpus->of_node; 431 } 432 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform); 433 434 void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link_component *cpus, 435 int is_single_links) 436 { 437 /* 438 * In soc_bind_dai_link() will check cpu name after 439 * of_node matching if dai_link has cpu_dai_name. 440 * but, it will never match if name was created by 441 * fmt_single_name() remove cpu_dai_name if cpu_args 442 * was 0. See: 443 * fmt_single_name() 444 * fmt_multiple_name() 445 */ 446 if (is_single_links) 447 cpus->dai_name = NULL; 448 } 449 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_cpu); 450 451 int asoc_simple_clean_reference(struct snd_soc_card *card) 452 { 453 struct snd_soc_dai_link *dai_link; 454 struct snd_soc_dai_link_component *cpu; 455 struct snd_soc_dai_link_component *codec; 456 int i, j; 457 458 for_each_card_prelinks(card, i, dai_link) { 459 for_each_link_cpus(dai_link, j, cpu) 460 of_node_put(cpu->of_node); 461 for_each_link_codecs(dai_link, j, codec) 462 of_node_put(codec->of_node); 463 } 464 return 0; 465 } 466 EXPORT_SYMBOL_GPL(asoc_simple_clean_reference); 467 468 int asoc_simple_parse_routing(struct snd_soc_card *card, 469 char *prefix) 470 { 471 struct device_node *node = card->dev->of_node; 472 char prop[128]; 473 474 if (!prefix) 475 prefix = ""; 476 477 snprintf(prop, sizeof(prop), "%s%s", prefix, "routing"); 478 479 if (!of_property_read_bool(node, prop)) 480 return 0; 481 482 return snd_soc_of_parse_audio_routing(card, prop); 483 } 484 EXPORT_SYMBOL_GPL(asoc_simple_parse_routing); 485 486 int asoc_simple_parse_widgets(struct snd_soc_card *card, 487 char *prefix) 488 { 489 struct device_node *node = card->dev->of_node; 490 char prop[128]; 491 492 if (!prefix) 493 prefix = ""; 494 495 snprintf(prop, sizeof(prop), "%s%s", prefix, "widgets"); 496 497 if (of_property_read_bool(node, prop)) 498 return snd_soc_of_parse_audio_simple_widgets(card, prop); 499 500 /* no widgets is not error */ 501 return 0; 502 } 503 EXPORT_SYMBOL_GPL(asoc_simple_parse_widgets); 504 505 int asoc_simple_parse_pin_switches(struct snd_soc_card *card, 506 char *prefix) 507 { 508 const unsigned int nb_controls_max = 16; 509 const char **strings, *control_name; 510 struct snd_kcontrol_new *controls; 511 struct device *dev = card->dev; 512 unsigned int i, nb_controls; 513 char prop[128]; 514 int ret; 515 516 if (!prefix) 517 prefix = ""; 518 519 snprintf(prop, sizeof(prop), "%s%s", prefix, "pin-switches"); 520 521 if (!of_property_read_bool(dev->of_node, prop)) 522 return 0; 523 524 strings = devm_kcalloc(dev, nb_controls_max, 525 sizeof(*strings), GFP_KERNEL); 526 if (!strings) 527 return -ENOMEM; 528 529 ret = of_property_read_string_array(dev->of_node, prop, 530 strings, nb_controls_max); 531 if (ret < 0) 532 return ret; 533 534 nb_controls = (unsigned int)ret; 535 536 controls = devm_kcalloc(dev, nb_controls, 537 sizeof(*controls), GFP_KERNEL); 538 if (!controls) 539 return -ENOMEM; 540 541 for (i = 0; i < nb_controls; i++) { 542 control_name = devm_kasprintf(dev, GFP_KERNEL, 543 "%s Switch", strings[i]); 544 if (!control_name) 545 return -ENOMEM; 546 547 controls[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 548 controls[i].name = control_name; 549 controls[i].info = snd_soc_dapm_info_pin_switch; 550 controls[i].get = snd_soc_dapm_get_pin_switch; 551 controls[i].put = snd_soc_dapm_put_pin_switch; 552 controls[i].private_value = (unsigned long)strings[i]; 553 } 554 555 card->controls = controls; 556 card->num_controls = nb_controls; 557 558 return 0; 559 } 560 EXPORT_SYMBOL_GPL(asoc_simple_parse_pin_switches); 561 562 int asoc_simple_init_jack(struct snd_soc_card *card, 563 struct asoc_simple_jack *sjack, 564 int is_hp, char *prefix, 565 char *pin) 566 { 567 struct device *dev = card->dev; 568 enum of_gpio_flags flags; 569 char prop[128]; 570 char *pin_name; 571 char *gpio_name; 572 int mask; 573 int det; 574 575 if (!prefix) 576 prefix = ""; 577 578 sjack->gpio.gpio = -ENOENT; 579 580 if (is_hp) { 581 snprintf(prop, sizeof(prop), "%shp-det-gpio", prefix); 582 pin_name = pin ? pin : "Headphones"; 583 gpio_name = "Headphone detection"; 584 mask = SND_JACK_HEADPHONE; 585 } else { 586 snprintf(prop, sizeof(prop), "%smic-det-gpio", prefix); 587 pin_name = pin ? pin : "Mic Jack"; 588 gpio_name = "Mic detection"; 589 mask = SND_JACK_MICROPHONE; 590 } 591 592 det = of_get_named_gpio_flags(dev->of_node, prop, 0, &flags); 593 if (det == -EPROBE_DEFER) 594 return -EPROBE_DEFER; 595 596 if (gpio_is_valid(det)) { 597 sjack->pin.pin = pin_name; 598 sjack->pin.mask = mask; 599 600 sjack->gpio.name = gpio_name; 601 sjack->gpio.report = mask; 602 sjack->gpio.gpio = det; 603 sjack->gpio.invert = !!(flags & OF_GPIO_ACTIVE_LOW); 604 sjack->gpio.debounce_time = 150; 605 606 snd_soc_card_jack_new(card, pin_name, mask, 607 &sjack->jack, 608 &sjack->pin, 1); 609 610 snd_soc_jack_add_gpios(&sjack->jack, 1, 611 &sjack->gpio); 612 } 613 614 return 0; 615 } 616 EXPORT_SYMBOL_GPL(asoc_simple_init_jack); 617 618 int asoc_simple_init_priv(struct asoc_simple_priv *priv, 619 struct link_info *li) 620 { 621 struct snd_soc_card *card = simple_priv_to_card(priv); 622 struct device *dev = simple_priv_to_dev(priv); 623 struct snd_soc_dai_link *dai_link; 624 struct simple_dai_props *dai_props; 625 struct asoc_simple_dai *dais; 626 struct snd_soc_dai_link_component *dlcs; 627 struct snd_soc_codec_conf *cconf = NULL; 628 int i, dai_num = 0, dlc_num = 0, cnf_num = 0; 629 630 dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL); 631 dai_link = devm_kcalloc(dev, li->link, sizeof(*dai_link), GFP_KERNEL); 632 if (!dai_props || !dai_link) 633 return -ENOMEM; 634 635 /* 636 * dais (= CPU+Codec) 637 * dlcs (= CPU+Codec+Platform) 638 */ 639 for (i = 0; i < li->link; i++) { 640 int cc = li->num[i].cpus + li->num[i].codecs; 641 642 dai_num += cc; 643 dlc_num += cc + li->num[i].platforms; 644 645 if (!li->num[i].cpus) 646 cnf_num += li->num[i].codecs; 647 } 648 649 dais = devm_kcalloc(dev, dai_num, sizeof(*dais), GFP_KERNEL); 650 dlcs = devm_kcalloc(dev, dlc_num, sizeof(*dai_props), GFP_KERNEL); 651 if (!dais || !dlcs) 652 return -ENOMEM; 653 654 if (cnf_num) { 655 cconf = devm_kcalloc(dev, cnf_num, sizeof(*cconf), GFP_KERNEL); 656 if (!cconf) 657 return -ENOMEM; 658 } 659 660 dev_dbg(dev, "link %d, dais %d, ccnf %d\n", 661 li->link, dai_num, cnf_num); 662 663 /* dummy CPU/Codec */ 664 priv->dummy.of_node = NULL; 665 priv->dummy.dai_name = "snd-soc-dummy-dai"; 666 priv->dummy.name = "snd-soc-dummy"; 667 668 priv->dai_props = dai_props; 669 priv->dai_link = dai_link; 670 priv->dais = dais; 671 priv->dlcs = dlcs; 672 priv->codec_conf = cconf; 673 674 card->dai_link = priv->dai_link; 675 card->num_links = li->link; 676 card->codec_conf = cconf; 677 card->num_configs = cnf_num; 678 679 for (i = 0; i < li->link; i++) { 680 if (li->num[i].cpus) { 681 /* Normal CPU */ 682 dai_props[i].cpus = 683 dai_link[i].cpus = dlcs; 684 dai_props[i].num.cpus = 685 dai_link[i].num_cpus = li->num[i].cpus; 686 dai_props[i].cpu_dai = dais; 687 688 dlcs += li->num[i].cpus; 689 dais += li->num[i].cpus; 690 } else { 691 /* DPCM Be's CPU = dummy */ 692 dai_props[i].cpus = 693 dai_link[i].cpus = &priv->dummy; 694 dai_props[i].num.cpus = 695 dai_link[i].num_cpus = 1; 696 } 697 698 if (li->num[i].codecs) { 699 /* Normal Codec */ 700 dai_props[i].codecs = 701 dai_link[i].codecs = dlcs; 702 dai_props[i].num.codecs = 703 dai_link[i].num_codecs = li->num[i].codecs; 704 dai_props[i].codec_dai = dais; 705 706 dlcs += li->num[i].codecs; 707 dais += li->num[i].codecs; 708 709 if (!li->num[i].cpus) { 710 /* DPCM Be's Codec */ 711 dai_props[i].codec_conf = cconf; 712 cconf += li->num[i].codecs; 713 } 714 } else { 715 /* DPCM Fe's Codec = dummy */ 716 dai_props[i].codecs = 717 dai_link[i].codecs = &priv->dummy; 718 dai_props[i].num.codecs = 719 dai_link[i].num_codecs = 1; 720 } 721 722 if (li->num[i].platforms) { 723 /* Have Platform */ 724 dai_props[i].platforms = 725 dai_link[i].platforms = dlcs; 726 dai_props[i].num.platforms = 727 dai_link[i].num_platforms = li->num[i].platforms; 728 729 dlcs += li->num[i].platforms; 730 } else { 731 /* Doesn't have Platform */ 732 dai_props[i].platforms = 733 dai_link[i].platforms = NULL; 734 dai_props[i].num.platforms = 735 dai_link[i].num_platforms = 0; 736 } 737 } 738 739 return 0; 740 } 741 EXPORT_SYMBOL_GPL(asoc_simple_init_priv); 742 743 int asoc_simple_remove(struct platform_device *pdev) 744 { 745 struct snd_soc_card *card = platform_get_drvdata(pdev); 746 747 return asoc_simple_clean_reference(card); 748 } 749 EXPORT_SYMBOL_GPL(asoc_simple_remove); 750 751 int asoc_graph_card_probe(struct snd_soc_card *card) 752 { 753 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(card); 754 int ret; 755 756 ret = asoc_simple_init_hp(card, &priv->hp_jack, NULL); 757 if (ret < 0) 758 return ret; 759 760 ret = asoc_simple_init_mic(card, &priv->mic_jack, NULL); 761 if (ret < 0) 762 return ret; 763 764 return 0; 765 } 766 EXPORT_SYMBOL_GPL(asoc_graph_card_probe); 767 768 /* Module information */ 769 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); 770 MODULE_DESCRIPTION("ALSA SoC Simple Card Utils"); 771 MODULE_LICENSE("GPL v2"); 772