1// SPDX-License-Identifier: GPL-2.0+ 2// 3// soc-topology.c -- ALSA SoC Topology 4// 5// Copyright (C) 2012 Texas Instruments Inc. 6// Copyright (C) 2015 Intel Corporation. 7// 8// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com> 9// K, Mythri P <mythri.p.k@intel.com> 10// Prusty, Subhransu S <subhransu.s.prusty@intel.com> 11// B, Jayachandran <jayachandran.b@intel.com> 12// Abdullah, Omair M <omair.m.abdullah@intel.com> 13// Jin, Yao <yao.jin@intel.com> 14// Lin, Mengdong <mengdong.lin@intel.com> 15// 16// Add support to read audio firmware topology alongside firmware text. The 17// topology data can contain kcontrols, DAPM graphs, widgets, DAIs, DAI links, 18// equalizers, firmware, coefficients etc. 19// 20// This file only manages the core ALSA and ASoC components, all other bespoke 21// firmware topology data is passed to component drivers for bespoke handling. 22 23#include <linux/kernel.h> 24#include <linux/export.h> 25#include <linux/list.h> 26#include <linux/firmware.h> 27#include <linux/slab.h> 28#include <sound/soc.h> 29#include <sound/soc-dapm.h> 30#include <sound/soc-topology.h> 31#include <sound/tlv.h> 32 33#define SOC_TPLG_MAGIC_BIG_ENDIAN 0x436F5341 /* ASoC in reverse */ 34 35/* 36 * We make several passes over the data (since it wont necessarily be ordered) 37 * and process objects in the following order. This guarantees the component 38 * drivers will be ready with any vendor data before the mixers and DAPM objects 39 * are loaded (that may make use of the vendor data). 40 */ 41#define SOC_TPLG_PASS_MANIFEST 0 42#define SOC_TPLG_PASS_VENDOR 1 43#define SOC_TPLG_PASS_MIXER 2 44#define SOC_TPLG_PASS_WIDGET 3 45#define SOC_TPLG_PASS_PCM_DAI 4 46#define SOC_TPLG_PASS_GRAPH 5 47#define SOC_TPLG_PASS_PINS 6 48#define SOC_TPLG_PASS_BE_DAI 7 49#define SOC_TPLG_PASS_LINK 8 50 51#define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST 52#define SOC_TPLG_PASS_END SOC_TPLG_PASS_LINK 53 54/* topology context */ 55struct soc_tplg { 56 const struct firmware *fw; 57 58 /* runtime FW parsing */ 59 const u8 *pos; /* read postion */ 60 const u8 *hdr_pos; /* header position */ 61 unsigned int pass; /* pass number */ 62 63 /* component caller */ 64 struct device *dev; 65 struct snd_soc_component *comp; 66 u32 index; /* current block index */ 67 u32 req_index; /* required index, only loaded/free matching blocks */ 68 69 /* vendor specific kcontrol operations */ 70 const struct snd_soc_tplg_kcontrol_ops *io_ops; 71 int io_ops_count; 72 73 /* vendor specific bytes ext handlers, for TLV bytes controls */ 74 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops; 75 int bytes_ext_ops_count; 76 77 /* optional fw loading callbacks to component drivers */ 78 struct snd_soc_tplg_ops *ops; 79}; 80 81static int soc_tplg_process_headers(struct soc_tplg *tplg); 82static void soc_tplg_complete(struct soc_tplg *tplg); 83static void soc_tplg_denum_remove_texts(struct soc_enum *se); 84static void soc_tplg_denum_remove_values(struct soc_enum *se); 85 86/* check we dont overflow the data for this control chunk */ 87static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size, 88 unsigned int count, size_t bytes, const char *elem_type) 89{ 90 const u8 *end = tplg->pos + elem_size * count; 91 92 if (end > tplg->fw->data + tplg->fw->size) { 93 dev_err(tplg->dev, "ASoC: %s overflow end of data\n", 94 elem_type); 95 return -EINVAL; 96 } 97 98 /* check there is enough room in chunk for control. 99 extra bytes at the end of control are for vendor data here */ 100 if (elem_size * count > bytes) { 101 dev_err(tplg->dev, 102 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n", 103 elem_type, count, elem_size, bytes); 104 return -EINVAL; 105 } 106 107 return 0; 108} 109 110static inline int soc_tplg_is_eof(struct soc_tplg *tplg) 111{ 112 const u8 *end = tplg->hdr_pos; 113 114 if (end >= tplg->fw->data + tplg->fw->size) 115 return 1; 116 return 0; 117} 118 119static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg) 120{ 121 return (unsigned long)(tplg->hdr_pos - tplg->fw->data); 122} 123 124static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg) 125{ 126 return (unsigned long)(tplg->pos - tplg->fw->data); 127} 128 129/* mapping of Kcontrol types and associated operations. */ 130static const struct snd_soc_tplg_kcontrol_ops io_ops[] = { 131 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw, 132 snd_soc_put_volsw, snd_soc_info_volsw}, 133 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx, 134 snd_soc_put_volsw_sx, NULL}, 135 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double, 136 snd_soc_put_enum_double, snd_soc_info_enum_double}, 137 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double, 138 snd_soc_put_enum_double, NULL}, 139 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get, 140 snd_soc_bytes_put, snd_soc_bytes_info}, 141 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range, 142 snd_soc_put_volsw_range, snd_soc_info_volsw_range}, 143 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx, 144 snd_soc_put_xr_sx, snd_soc_info_xr_sx}, 145 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe, 146 snd_soc_put_strobe, NULL}, 147 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw, 148 snd_soc_dapm_put_volsw, snd_soc_info_volsw}, 149 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double, 150 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double}, 151 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double, 152 snd_soc_dapm_put_enum_double, NULL}, 153 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double, 154 snd_soc_dapm_put_enum_double, NULL}, 155 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch, 156 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch}, 157}; 158 159struct soc_tplg_map { 160 int uid; 161 int kid; 162}; 163 164/* mapping of widget types from UAPI IDs to kernel IDs */ 165static const struct soc_tplg_map dapm_map[] = { 166 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input}, 167 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output}, 168 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux}, 169 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer}, 170 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga}, 171 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv}, 172 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc}, 173 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac}, 174 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch}, 175 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre}, 176 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post}, 177 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in}, 178 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out}, 179 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in}, 180 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out}, 181 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link}, 182 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer}, 183 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler}, 184 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect}, 185 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen}, 186 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src}, 187 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc}, 188 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder}, 189 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder}, 190}; 191 192static int tplc_chan_get_reg(struct soc_tplg *tplg, 193 struct snd_soc_tplg_channel *chan, int map) 194{ 195 int i; 196 197 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 198 if (le32_to_cpu(chan[i].id) == map) 199 return le32_to_cpu(chan[i].reg); 200 } 201 202 return -EINVAL; 203} 204 205static int tplc_chan_get_shift(struct soc_tplg *tplg, 206 struct snd_soc_tplg_channel *chan, int map) 207{ 208 int i; 209 210 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 211 if (le32_to_cpu(chan[i].id) == map) 212 return le32_to_cpu(chan[i].shift); 213 } 214 215 return -EINVAL; 216} 217 218static int get_widget_id(int tplg_type) 219{ 220 int i; 221 222 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) { 223 if (tplg_type == dapm_map[i].uid) 224 return dapm_map[i].kid; 225 } 226 227 return -EINVAL; 228} 229 230static inline void soc_bind_err(struct soc_tplg *tplg, 231 struct snd_soc_tplg_ctl_hdr *hdr, int index) 232{ 233 dev_err(tplg->dev, 234 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n", 235 hdr->ops.get, hdr->ops.put, hdr->ops.info, index, 236 soc_tplg_get_offset(tplg)); 237} 238 239static inline void soc_control_err(struct soc_tplg *tplg, 240 struct snd_soc_tplg_ctl_hdr *hdr, const char *name) 241{ 242 dev_err(tplg->dev, 243 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n", 244 name, hdr->ops.get, hdr->ops.put, hdr->ops.info, 245 soc_tplg_get_offset(tplg)); 246} 247 248/* pass vendor data to component driver for processing */ 249static int soc_tplg_vendor_load(struct soc_tplg *tplg, 250 struct snd_soc_tplg_hdr *hdr) 251{ 252 int ret = 0; 253 254 if (tplg->ops && tplg->ops->vendor_load) 255 ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr); 256 else { 257 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n", 258 hdr->vendor_type); 259 return -EINVAL; 260 } 261 262 if (ret < 0) 263 dev_err(tplg->dev, 264 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n", 265 soc_tplg_get_hdr_offset(tplg), 266 soc_tplg_get_hdr_offset(tplg), 267 hdr->type, hdr->vendor_type); 268 return ret; 269} 270 271/* optionally pass new dynamic widget to component driver. This is mainly for 272 * external widgets where we can assign private data/ops */ 273static int soc_tplg_widget_load(struct soc_tplg *tplg, 274 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 275{ 276 if (tplg->ops && tplg->ops->widget_load) 277 return tplg->ops->widget_load(tplg->comp, tplg->index, w, 278 tplg_w); 279 280 return 0; 281} 282 283/* optionally pass new dynamic widget to component driver. This is mainly for 284 * external widgets where we can assign private data/ops */ 285static int soc_tplg_widget_ready(struct soc_tplg *tplg, 286 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 287{ 288 if (tplg->ops && tplg->ops->widget_ready) 289 return tplg->ops->widget_ready(tplg->comp, tplg->index, w, 290 tplg_w); 291 292 return 0; 293} 294 295/* pass DAI configurations to component driver for extra initialization */ 296static int soc_tplg_dai_load(struct soc_tplg *tplg, 297 struct snd_soc_dai_driver *dai_drv, 298 struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai) 299{ 300 if (tplg->ops && tplg->ops->dai_load) 301 return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv, 302 pcm, dai); 303 304 return 0; 305} 306 307/* pass link configurations to component driver for extra initialization */ 308static int soc_tplg_dai_link_load(struct soc_tplg *tplg, 309 struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg) 310{ 311 if (tplg->ops && tplg->ops->link_load) 312 return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg); 313 314 return 0; 315} 316 317/* tell the component driver that all firmware has been loaded in this request */ 318static void soc_tplg_complete(struct soc_tplg *tplg) 319{ 320 if (tplg->ops && tplg->ops->complete) 321 tplg->ops->complete(tplg->comp); 322} 323 324/* add a dynamic kcontrol */ 325static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev, 326 const struct snd_kcontrol_new *control_new, const char *prefix, 327 void *data, struct snd_kcontrol **kcontrol) 328{ 329 int err; 330 331 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix); 332 if (*kcontrol == NULL) { 333 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n", 334 control_new->name); 335 return -ENOMEM; 336 } 337 338 err = snd_ctl_add(card, *kcontrol); 339 if (err < 0) { 340 dev_err(dev, "ASoC: Failed to add %s: %d\n", 341 control_new->name, err); 342 return err; 343 } 344 345 return 0; 346} 347 348/* add a dynamic kcontrol for component driver */ 349static int soc_tplg_add_kcontrol(struct soc_tplg *tplg, 350 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol) 351{ 352 struct snd_soc_component *comp = tplg->comp; 353 354 return soc_tplg_add_dcontrol(comp->card->snd_card, 355 comp->dev, k, comp->name_prefix, comp, kcontrol); 356} 357 358/* remove a mixer kcontrol */ 359static void remove_mixer(struct snd_soc_component *comp, 360 struct snd_soc_dobj *dobj, int pass) 361{ 362 struct snd_card *card = comp->card->snd_card; 363 struct soc_mixer_control *sm = 364 container_of(dobj, struct soc_mixer_control, dobj); 365 const unsigned int *p = NULL; 366 367 if (pass != SOC_TPLG_PASS_MIXER) 368 return; 369 370 if (dobj->ops && dobj->ops->control_unload) 371 dobj->ops->control_unload(comp, dobj); 372 373 if (dobj->control.kcontrol->tlv.p) 374 p = dobj->control.kcontrol->tlv.p; 375 snd_ctl_remove(card, dobj->control.kcontrol); 376 list_del(&dobj->list); 377 kfree(sm); 378 kfree(p); 379} 380 381/* remove an enum kcontrol */ 382static void remove_enum(struct snd_soc_component *comp, 383 struct snd_soc_dobj *dobj, int pass) 384{ 385 struct snd_card *card = comp->card->snd_card; 386 struct soc_enum *se = container_of(dobj, struct soc_enum, dobj); 387 388 if (pass != SOC_TPLG_PASS_MIXER) 389 return; 390 391 if (dobj->ops && dobj->ops->control_unload) 392 dobj->ops->control_unload(comp, dobj); 393 394 snd_ctl_remove(card, dobj->control.kcontrol); 395 list_del(&dobj->list); 396 397 soc_tplg_denum_remove_values(se); 398 soc_tplg_denum_remove_texts(se); 399 kfree(se); 400} 401 402/* remove a byte kcontrol */ 403static void remove_bytes(struct snd_soc_component *comp, 404 struct snd_soc_dobj *dobj, int pass) 405{ 406 struct snd_card *card = comp->card->snd_card; 407 struct soc_bytes_ext *sb = 408 container_of(dobj, struct soc_bytes_ext, dobj); 409 410 if (pass != SOC_TPLG_PASS_MIXER) 411 return; 412 413 if (dobj->ops && dobj->ops->control_unload) 414 dobj->ops->control_unload(comp, dobj); 415 416 snd_ctl_remove(card, dobj->control.kcontrol); 417 list_del(&dobj->list); 418 kfree(sb); 419} 420 421/* remove a route */ 422static void remove_route(struct snd_soc_component *comp, 423 struct snd_soc_dobj *dobj, int pass) 424{ 425 struct snd_soc_dapm_route *route = 426 container_of(dobj, struct snd_soc_dapm_route, dobj); 427 428 if (pass != SOC_TPLG_PASS_GRAPH) 429 return; 430 431 if (dobj->ops && dobj->ops->dapm_route_unload) 432 dobj->ops->dapm_route_unload(comp, dobj); 433 434 list_del(&dobj->list); 435 kfree(route); 436} 437 438/* remove a widget and it's kcontrols - routes must be removed first */ 439static void remove_widget(struct snd_soc_component *comp, 440 struct snd_soc_dobj *dobj, int pass) 441{ 442 struct snd_card *card = comp->card->snd_card; 443 struct snd_soc_dapm_widget *w = 444 container_of(dobj, struct snd_soc_dapm_widget, dobj); 445 int i; 446 447 if (pass != SOC_TPLG_PASS_WIDGET) 448 return; 449 450 if (dobj->ops && dobj->ops->widget_unload) 451 dobj->ops->widget_unload(comp, dobj); 452 453 if (!w->kcontrols) 454 goto free_news; 455 456 /* 457 * Dynamic Widgets either have 1..N enum kcontrols or mixers. 458 * The enum may either have an array of values or strings. 459 */ 460 if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) { 461 /* enumerated widget mixer */ 462 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { 463 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 464 struct soc_enum *se = 465 (struct soc_enum *)kcontrol->private_value; 466 467 snd_ctl_remove(card, kcontrol); 468 469 /* free enum kcontrol's dvalues and dtexts */ 470 soc_tplg_denum_remove_values(se); 471 soc_tplg_denum_remove_texts(se); 472 473 kfree(se); 474 kfree(w->kcontrol_news[i].name); 475 } 476 } else { 477 /* volume mixer or bytes controls */ 478 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { 479 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 480 481 if (dobj->widget.kcontrol_type 482 == SND_SOC_TPLG_TYPE_MIXER) 483 kfree(kcontrol->tlv.p); 484 485 /* Private value is used as struct soc_mixer_control 486 * for volume mixers or soc_bytes_ext for bytes 487 * controls. 488 */ 489 kfree((void *)kcontrol->private_value); 490 snd_ctl_remove(card, kcontrol); 491 kfree(w->kcontrol_news[i].name); 492 } 493 } 494 495free_news: 496 kfree(w->kcontrol_news); 497 498 list_del(&dobj->list); 499 500 /* widget w is freed by soc-dapm.c */ 501} 502 503/* remove DAI configurations */ 504static void remove_dai(struct snd_soc_component *comp, 505 struct snd_soc_dobj *dobj, int pass) 506{ 507 struct snd_soc_dai_driver *dai_drv = 508 container_of(dobj, struct snd_soc_dai_driver, dobj); 509 struct snd_soc_dai *dai, *_dai; 510 511 if (pass != SOC_TPLG_PASS_PCM_DAI) 512 return; 513 514 if (dobj->ops && dobj->ops->dai_unload) 515 dobj->ops->dai_unload(comp, dobj); 516 517 for_each_component_dais_safe(comp, dai, _dai) 518 if (dai->driver == dai_drv) 519 snd_soc_unregister_dai(dai); 520 521 kfree(dai_drv->playback.stream_name); 522 kfree(dai_drv->capture.stream_name); 523 kfree(dai_drv->name); 524 list_del(&dobj->list); 525 kfree(dai_drv); 526} 527 528/* remove link configurations */ 529static void remove_link(struct snd_soc_component *comp, 530 struct snd_soc_dobj *dobj, int pass) 531{ 532 struct snd_soc_dai_link *link = 533 container_of(dobj, struct snd_soc_dai_link, dobj); 534 535 if (pass != SOC_TPLG_PASS_PCM_DAI) 536 return; 537 538 if (dobj->ops && dobj->ops->link_unload) 539 dobj->ops->link_unload(comp, dobj); 540 541 list_del(&dobj->list); 542 snd_soc_remove_pcm_runtime(comp->card, 543 snd_soc_get_pcm_runtime(comp->card, link)); 544 545 kfree(link->name); 546 kfree(link->stream_name); 547 kfree(link->cpus->dai_name); 548 kfree(link); 549} 550 551/* unload dai link */ 552static void remove_backend_link(struct snd_soc_component *comp, 553 struct snd_soc_dobj *dobj, int pass) 554{ 555 if (pass != SOC_TPLG_PASS_LINK) 556 return; 557 558 if (dobj->ops && dobj->ops->link_unload) 559 dobj->ops->link_unload(comp, dobj); 560 561 /* 562 * We don't free the link here as what remove_link() do since BE 563 * links are not allocated by topology. 564 * We however need to reset the dobj type to its initial values 565 */ 566 dobj->type = SND_SOC_DOBJ_NONE; 567 list_del(&dobj->list); 568} 569 570/* bind a kcontrol to it's IO handlers */ 571static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr, 572 struct snd_kcontrol_new *k, 573 const struct soc_tplg *tplg) 574{ 575 const struct snd_soc_tplg_kcontrol_ops *ops; 576 const struct snd_soc_tplg_bytes_ext_ops *ext_ops; 577 int num_ops, i; 578 579 if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES 580 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER 581 && (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ 582 || k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 583 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 584 struct soc_bytes_ext *sbe; 585 struct snd_soc_tplg_bytes_control *be; 586 587 sbe = (struct soc_bytes_ext *)k->private_value; 588 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr); 589 590 /* TLV bytes controls need standard kcontrol info handler, 591 * TLV callback and extended put/get handlers. 592 */ 593 k->info = snd_soc_bytes_info_ext; 594 k->tlv.c = snd_soc_bytes_tlv_callback; 595 596 /* 597 * When a topology-based implementation abuses the 598 * control interface and uses bytes_ext controls of 599 * more than 512 bytes, we need to disable the size 600 * checks, otherwise accesses to such controls will 601 * return an -EINVAL error and prevent the card from 602 * being configured. 603 */ 604 if (IS_ENABLED(CONFIG_SND_CTL_VALIDATION) && sbe->max > 512) 605 k->access |= SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK; 606 607 ext_ops = tplg->bytes_ext_ops; 608 num_ops = tplg->bytes_ext_ops_count; 609 for (i = 0; i < num_ops; i++) { 610 if (!sbe->put && 611 ext_ops[i].id == le32_to_cpu(be->ext_ops.put)) 612 sbe->put = ext_ops[i].put; 613 if (!sbe->get && 614 ext_ops[i].id == le32_to_cpu(be->ext_ops.get)) 615 sbe->get = ext_ops[i].get; 616 } 617 618 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) && !sbe->get) 619 return -EINVAL; 620 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) && !sbe->put) 621 return -EINVAL; 622 return 0; 623 } 624 625 /* try and map vendor specific kcontrol handlers first */ 626 ops = tplg->io_ops; 627 num_ops = tplg->io_ops_count; 628 for (i = 0; i < num_ops; i++) { 629 630 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 631 k->put = ops[i].put; 632 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 633 k->get = ops[i].get; 634 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 635 k->info = ops[i].info; 636 } 637 638 /* vendor specific handlers found ? */ 639 if (k->put && k->get && k->info) 640 return 0; 641 642 /* none found so try standard kcontrol handlers */ 643 ops = io_ops; 644 num_ops = ARRAY_SIZE(io_ops); 645 for (i = 0; i < num_ops; i++) { 646 647 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 648 k->put = ops[i].put; 649 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 650 k->get = ops[i].get; 651 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 652 k->info = ops[i].info; 653 } 654 655 /* standard handlers found ? */ 656 if (k->put && k->get && k->info) 657 return 0; 658 659 /* nothing to bind */ 660 return -EINVAL; 661} 662 663/* bind a widgets to it's evnt handlers */ 664int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w, 665 const struct snd_soc_tplg_widget_events *events, 666 int num_events, u16 event_type) 667{ 668 int i; 669 670 w->event = NULL; 671 672 for (i = 0; i < num_events; i++) { 673 if (event_type == events[i].type) { 674 675 /* found - so assign event */ 676 w->event = events[i].event_handler; 677 return 0; 678 } 679 } 680 681 /* not found */ 682 return -EINVAL; 683} 684EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event); 685 686/* optionally pass new dynamic kcontrol to component driver. */ 687static int soc_tplg_init_kcontrol(struct soc_tplg *tplg, 688 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr) 689{ 690 if (tplg->ops && tplg->ops->control_load) 691 return tplg->ops->control_load(tplg->comp, tplg->index, k, 692 hdr); 693 694 return 0; 695} 696 697 698static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg, 699 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale) 700{ 701 unsigned int item_len = 2 * sizeof(unsigned int); 702 unsigned int *p; 703 704 p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL); 705 if (!p) 706 return -ENOMEM; 707 708 p[0] = SNDRV_CTL_TLVT_DB_SCALE; 709 p[1] = item_len; 710 p[2] = le32_to_cpu(scale->min); 711 p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK) 712 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0); 713 714 kc->tlv.p = (void *)p; 715 return 0; 716} 717 718static int soc_tplg_create_tlv(struct soc_tplg *tplg, 719 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc) 720{ 721 struct snd_soc_tplg_ctl_tlv *tplg_tlv; 722 u32 access = le32_to_cpu(tc->access); 723 724 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)) 725 return 0; 726 727 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) { 728 tplg_tlv = &tc->tlv; 729 switch (le32_to_cpu(tplg_tlv->type)) { 730 case SNDRV_CTL_TLVT_DB_SCALE: 731 return soc_tplg_create_tlv_db_scale(tplg, kc, 732 &tplg_tlv->scale); 733 734 /* TODO: add support for other TLV types */ 735 default: 736 dev_dbg(tplg->dev, "Unsupported TLV type %d\n", 737 tplg_tlv->type); 738 return -EINVAL; 739 } 740 } 741 742 return 0; 743} 744 745static inline void soc_tplg_free_tlv(struct soc_tplg *tplg, 746 struct snd_kcontrol_new *kc) 747{ 748 kfree(kc->tlv.p); 749} 750 751static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count, 752 size_t size) 753{ 754 struct snd_soc_tplg_bytes_control *be; 755 struct soc_bytes_ext *sbe; 756 struct snd_kcontrol_new kc; 757 int i; 758 int err = 0; 759 760 if (soc_tplg_check_elem_count(tplg, 761 sizeof(struct snd_soc_tplg_bytes_control), count, 762 size, "mixer bytes")) { 763 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n", 764 count); 765 return -EINVAL; 766 } 767 768 for (i = 0; i < count; i++) { 769 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 770 771 /* validate kcontrol */ 772 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 773 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 774 return -EINVAL; 775 776 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 777 if (sbe == NULL) 778 return -ENOMEM; 779 780 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 781 le32_to_cpu(be->priv.size)); 782 783 dev_dbg(tplg->dev, 784 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 785 be->hdr.name, be->hdr.access); 786 787 memset(&kc, 0, sizeof(kc)); 788 kc.name = be->hdr.name; 789 kc.private_value = (long)sbe; 790 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 791 kc.access = le32_to_cpu(be->hdr.access); 792 793 sbe->max = le32_to_cpu(be->max); 794 sbe->dobj.type = SND_SOC_DOBJ_BYTES; 795 sbe->dobj.ops = tplg->ops; 796 INIT_LIST_HEAD(&sbe->dobj.list); 797 798 /* map io handlers */ 799 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg); 800 if (err) { 801 soc_control_err(tplg, &be->hdr, be->hdr.name); 802 kfree(sbe); 803 break; 804 } 805 806 /* pass control to driver for optional further init */ 807 err = soc_tplg_init_kcontrol(tplg, &kc, 808 (struct snd_soc_tplg_ctl_hdr *)be); 809 if (err < 0) { 810 dev_err(tplg->dev, "ASoC: failed to init %s\n", 811 be->hdr.name); 812 kfree(sbe); 813 break; 814 } 815 816 /* register control here */ 817 err = soc_tplg_add_kcontrol(tplg, &kc, 818 &sbe->dobj.control.kcontrol); 819 if (err < 0) { 820 dev_err(tplg->dev, "ASoC: failed to add %s\n", 821 be->hdr.name); 822 kfree(sbe); 823 break; 824 } 825 826 list_add(&sbe->dobj.list, &tplg->comp->dobj_list); 827 } 828 return err; 829 830} 831 832static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count, 833 size_t size) 834{ 835 struct snd_soc_tplg_mixer_control *mc; 836 struct soc_mixer_control *sm; 837 struct snd_kcontrol_new kc; 838 int i; 839 int err = 0; 840 841 if (soc_tplg_check_elem_count(tplg, 842 sizeof(struct snd_soc_tplg_mixer_control), 843 count, size, "mixers")) { 844 845 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n", 846 count); 847 return -EINVAL; 848 } 849 850 for (i = 0; i < count; i++) { 851 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 852 853 /* validate kcontrol */ 854 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 855 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 856 return -EINVAL; 857 858 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 859 if (sm == NULL) 860 return -ENOMEM; 861 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 862 le32_to_cpu(mc->priv.size)); 863 864 dev_dbg(tplg->dev, 865 "ASoC: adding mixer kcontrol %s with access 0x%x\n", 866 mc->hdr.name, mc->hdr.access); 867 868 memset(&kc, 0, sizeof(kc)); 869 kc.name = mc->hdr.name; 870 kc.private_value = (long)sm; 871 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 872 kc.access = le32_to_cpu(mc->hdr.access); 873 874 /* we only support FL/FR channel mapping atm */ 875 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 876 SNDRV_CHMAP_FL); 877 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 878 SNDRV_CHMAP_FR); 879 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 880 SNDRV_CHMAP_FL); 881 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 882 SNDRV_CHMAP_FR); 883 884 sm->max = le32_to_cpu(mc->max); 885 sm->min = le32_to_cpu(mc->min); 886 sm->invert = le32_to_cpu(mc->invert); 887 sm->platform_max = le32_to_cpu(mc->platform_max); 888 sm->dobj.index = tplg->index; 889 sm->dobj.ops = tplg->ops; 890 sm->dobj.type = SND_SOC_DOBJ_MIXER; 891 INIT_LIST_HEAD(&sm->dobj.list); 892 893 /* map io handlers */ 894 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg); 895 if (err) { 896 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 897 kfree(sm); 898 break; 899 } 900 901 /* create any TLV data */ 902 err = soc_tplg_create_tlv(tplg, &kc, &mc->hdr); 903 if (err < 0) { 904 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 905 mc->hdr.name); 906 kfree(sm); 907 break; 908 } 909 910 /* pass control to driver for optional further init */ 911 err = soc_tplg_init_kcontrol(tplg, &kc, 912 (struct snd_soc_tplg_ctl_hdr *) mc); 913 if (err < 0) { 914 dev_err(tplg->dev, "ASoC: failed to init %s\n", 915 mc->hdr.name); 916 soc_tplg_free_tlv(tplg, &kc); 917 kfree(sm); 918 break; 919 } 920 921 /* register control here */ 922 err = soc_tplg_add_kcontrol(tplg, &kc, 923 &sm->dobj.control.kcontrol); 924 if (err < 0) { 925 dev_err(tplg->dev, "ASoC: failed to add %s\n", 926 mc->hdr.name); 927 soc_tplg_free_tlv(tplg, &kc); 928 kfree(sm); 929 break; 930 } 931 932 list_add(&sm->dobj.list, &tplg->comp->dobj_list); 933 } 934 935 return err; 936} 937 938static int soc_tplg_denum_create_texts(struct soc_enum *se, 939 struct snd_soc_tplg_enum_control *ec) 940{ 941 int i, ret; 942 943 se->dobj.control.dtexts = 944 kcalloc(le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL); 945 if (se->dobj.control.dtexts == NULL) 946 return -ENOMEM; 947 948 for (i = 0; i < le32_to_cpu(ec->items); i++) { 949 950 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 951 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 952 ret = -EINVAL; 953 goto err; 954 } 955 956 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL); 957 if (!se->dobj.control.dtexts[i]) { 958 ret = -ENOMEM; 959 goto err; 960 } 961 } 962 963 se->items = le32_to_cpu(ec->items); 964 se->texts = (const char * const *)se->dobj.control.dtexts; 965 return 0; 966 967err: 968 se->items = i; 969 soc_tplg_denum_remove_texts(se); 970 return ret; 971} 972 973static inline void soc_tplg_denum_remove_texts(struct soc_enum *se) 974{ 975 int i = se->items; 976 977 for (--i; i >= 0; i--) 978 kfree(se->dobj.control.dtexts[i]); 979 kfree(se->dobj.control.dtexts); 980} 981 982static int soc_tplg_denum_create_values(struct soc_enum *se, 983 struct snd_soc_tplg_enum_control *ec) 984{ 985 int i; 986 987 if (le32_to_cpu(ec->items) > sizeof(*ec->values)) 988 return -EINVAL; 989 990 se->dobj.control.dvalues = kzalloc(le32_to_cpu(ec->items) * 991 sizeof(*se->dobj.control.dvalues), 992 GFP_KERNEL); 993 if (!se->dobj.control.dvalues) 994 return -ENOMEM; 995 996 /* convert from little-endian */ 997 for (i = 0; i < le32_to_cpu(ec->items); i++) { 998 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]); 999 } 1000 1001 return 0; 1002} 1003 1004static inline void soc_tplg_denum_remove_values(struct soc_enum *se) 1005{ 1006 kfree(se->dobj.control.dvalues); 1007} 1008 1009static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count, 1010 size_t size) 1011{ 1012 struct snd_soc_tplg_enum_control *ec; 1013 struct soc_enum *se; 1014 struct snd_kcontrol_new kc; 1015 int i; 1016 int err = 0; 1017 1018 if (soc_tplg_check_elem_count(tplg, 1019 sizeof(struct snd_soc_tplg_enum_control), 1020 count, size, "enums")) { 1021 1022 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n", 1023 count); 1024 return -EINVAL; 1025 } 1026 1027 for (i = 0; i < count; i++) { 1028 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1029 1030 /* validate kcontrol */ 1031 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1032 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1033 return -EINVAL; 1034 1035 se = kzalloc((sizeof(*se)), GFP_KERNEL); 1036 if (se == NULL) 1037 return -ENOMEM; 1038 1039 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1040 le32_to_cpu(ec->priv.size)); 1041 1042 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", 1043 ec->hdr.name, ec->items); 1044 1045 memset(&kc, 0, sizeof(kc)); 1046 kc.name = ec->hdr.name; 1047 kc.private_value = (long)se; 1048 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1049 kc.access = le32_to_cpu(ec->hdr.access); 1050 1051 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1052 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1053 SNDRV_CHMAP_FL); 1054 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1055 SNDRV_CHMAP_FL); 1056 1057 se->mask = le32_to_cpu(ec->mask); 1058 se->dobj.index = tplg->index; 1059 se->dobj.type = SND_SOC_DOBJ_ENUM; 1060 se->dobj.ops = tplg->ops; 1061 INIT_LIST_HEAD(&se->dobj.list); 1062 1063 switch (le32_to_cpu(ec->hdr.ops.info)) { 1064 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1065 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1066 err = soc_tplg_denum_create_values(se, ec); 1067 if (err < 0) { 1068 dev_err(tplg->dev, 1069 "ASoC: could not create values for %s\n", 1070 ec->hdr.name); 1071 goto err_denum; 1072 } 1073 fallthrough; 1074 case SND_SOC_TPLG_CTL_ENUM: 1075 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1076 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1077 err = soc_tplg_denum_create_texts(se, ec); 1078 if (err < 0) { 1079 dev_err(tplg->dev, 1080 "ASoC: could not create texts for %s\n", 1081 ec->hdr.name); 1082 goto err_denum; 1083 } 1084 break; 1085 default: 1086 err = -EINVAL; 1087 dev_err(tplg->dev, 1088 "ASoC: invalid enum control type %d for %s\n", 1089 ec->hdr.ops.info, ec->hdr.name); 1090 goto err_denum; 1091 } 1092 1093 /* map io handlers */ 1094 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg); 1095 if (err) { 1096 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1097 goto err_denum; 1098 } 1099 1100 /* pass control to driver for optional further init */ 1101 err = soc_tplg_init_kcontrol(tplg, &kc, 1102 (struct snd_soc_tplg_ctl_hdr *) ec); 1103 if (err < 0) { 1104 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1105 ec->hdr.name); 1106 goto err_denum; 1107 } 1108 1109 /* register control here */ 1110 err = soc_tplg_add_kcontrol(tplg, 1111 &kc, &se->dobj.control.kcontrol); 1112 if (err < 0) { 1113 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n", 1114 ec->hdr.name); 1115 goto err_denum; 1116 } 1117 1118 list_add(&se->dobj.list, &tplg->comp->dobj_list); 1119 } 1120 return 0; 1121 1122err_denum: 1123 kfree(se); 1124 return err; 1125} 1126 1127static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 1128 struct snd_soc_tplg_hdr *hdr) 1129{ 1130 struct snd_soc_tplg_ctl_hdr *control_hdr; 1131 int ret; 1132 int i; 1133 1134 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 1135 soc_tplg_get_offset(tplg)); 1136 1137 for (i = 0; i < le32_to_cpu(hdr->count); i++) { 1138 1139 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1140 1141 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) { 1142 dev_err(tplg->dev, "ASoC: invalid control size\n"); 1143 return -EINVAL; 1144 } 1145 1146 switch (le32_to_cpu(control_hdr->ops.info)) { 1147 case SND_SOC_TPLG_CTL_VOLSW: 1148 case SND_SOC_TPLG_CTL_STROBE: 1149 case SND_SOC_TPLG_CTL_VOLSW_SX: 1150 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1151 case SND_SOC_TPLG_CTL_RANGE: 1152 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1153 case SND_SOC_TPLG_DAPM_CTL_PIN: 1154 ret = soc_tplg_dmixer_create(tplg, 1, 1155 le32_to_cpu(hdr->payload_size)); 1156 break; 1157 case SND_SOC_TPLG_CTL_ENUM: 1158 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1159 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1160 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1161 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1162 ret = soc_tplg_denum_create(tplg, 1, 1163 le32_to_cpu(hdr->payload_size)); 1164 break; 1165 case SND_SOC_TPLG_CTL_BYTES: 1166 ret = soc_tplg_dbytes_create(tplg, 1, 1167 le32_to_cpu(hdr->payload_size)); 1168 break; 1169 default: 1170 soc_bind_err(tplg, control_hdr, i); 1171 return -EINVAL; 1172 } 1173 if (ret < 0) { 1174 dev_err(tplg->dev, "ASoC: invalid control\n"); 1175 return ret; 1176 } 1177 1178 } 1179 1180 return 0; 1181} 1182 1183/* optionally pass new dynamic kcontrol to component driver. */ 1184static int soc_tplg_add_route(struct soc_tplg *tplg, 1185 struct snd_soc_dapm_route *route) 1186{ 1187 if (tplg->ops && tplg->ops->dapm_route_load) 1188 return tplg->ops->dapm_route_load(tplg->comp, tplg->index, 1189 route); 1190 1191 return 0; 1192} 1193 1194static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1195 struct snd_soc_tplg_hdr *hdr) 1196{ 1197 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1198 struct snd_soc_tplg_dapm_graph_elem *elem; 1199 struct snd_soc_dapm_route **routes; 1200 int count, i, j; 1201 int ret = 0; 1202 1203 count = le32_to_cpu(hdr->count); 1204 1205 if (soc_tplg_check_elem_count(tplg, 1206 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1207 count, le32_to_cpu(hdr->payload_size), "graph")) { 1208 1209 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n", 1210 count); 1211 return -EINVAL; 1212 } 1213 1214 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, 1215 hdr->index); 1216 1217 /* allocate memory for pointer to array of dapm routes */ 1218 routes = kcalloc(count, sizeof(struct snd_soc_dapm_route *), 1219 GFP_KERNEL); 1220 if (!routes) 1221 return -ENOMEM; 1222 1223 /* 1224 * allocate memory for each dapm route in the array. 1225 * This needs to be done individually so that 1226 * each route can be freed when it is removed in remove_route(). 1227 */ 1228 for (i = 0; i < count; i++) { 1229 routes[i] = kzalloc(sizeof(*routes[i]), GFP_KERNEL); 1230 if (!routes[i]) { 1231 /* free previously allocated memory */ 1232 for (j = 0; j < i; j++) 1233 kfree(routes[j]); 1234 1235 kfree(routes); 1236 return -ENOMEM; 1237 } 1238 } 1239 1240 for (i = 0; i < count; i++) { 1241 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1242 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1243 1244 /* validate routes */ 1245 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1246 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1247 ret = -EINVAL; 1248 break; 1249 } 1250 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1251 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1252 ret = -EINVAL; 1253 break; 1254 } 1255 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1256 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1257 ret = -EINVAL; 1258 break; 1259 } 1260 1261 routes[i]->source = elem->source; 1262 routes[i]->sink = elem->sink; 1263 1264 /* set to NULL atm for tplg users */ 1265 routes[i]->connected = NULL; 1266 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0) 1267 routes[i]->control = NULL; 1268 else 1269 routes[i]->control = elem->control; 1270 1271 /* add route dobj to dobj_list */ 1272 routes[i]->dobj.type = SND_SOC_DOBJ_GRAPH; 1273 routes[i]->dobj.ops = tplg->ops; 1274 routes[i]->dobj.index = tplg->index; 1275 list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list); 1276 1277 ret = soc_tplg_add_route(tplg, routes[i]); 1278 if (ret < 0) { 1279 dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret); 1280 /* 1281 * this route was added to the list, it will 1282 * be freed in remove_route() so increment the 1283 * counter to skip it in the error handling 1284 * below. 1285 */ 1286 i++; 1287 break; 1288 } 1289 1290 /* add route, but keep going if some fail */ 1291 snd_soc_dapm_add_routes(dapm, routes[i], 1); 1292 } 1293 1294 /* 1295 * free memory allocated for all dapm routes not added to the 1296 * list in case of error 1297 */ 1298 if (ret < 0) { 1299 while (i < count) 1300 kfree(routes[i++]); 1301 } 1302 1303 /* 1304 * free pointer to array of dapm routes as this is no longer needed. 1305 * The memory allocated for each dapm route will be freed 1306 * when it is removed in remove_route(). 1307 */ 1308 kfree(routes); 1309 1310 return ret; 1311} 1312 1313static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create( 1314 struct soc_tplg *tplg, int num_kcontrols) 1315{ 1316 struct snd_kcontrol_new *kc; 1317 struct soc_mixer_control *sm; 1318 struct snd_soc_tplg_mixer_control *mc; 1319 int i, err; 1320 1321 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1322 if (kc == NULL) 1323 return NULL; 1324 1325 for (i = 0; i < num_kcontrols; i++) { 1326 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1327 1328 /* validate kcontrol */ 1329 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1330 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1331 goto err_sm; 1332 1333 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 1334 if (sm == NULL) 1335 goto err_sm; 1336 1337 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 1338 le32_to_cpu(mc->priv.size)); 1339 1340 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n", 1341 mc->hdr.name, i); 1342 1343 kc[i].private_value = (long)sm; 1344 kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL); 1345 if (kc[i].name == NULL) 1346 goto err_sm; 1347 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1348 kc[i].access = le32_to_cpu(mc->hdr.access); 1349 1350 /* we only support FL/FR channel mapping atm */ 1351 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 1352 SNDRV_CHMAP_FL); 1353 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 1354 SNDRV_CHMAP_FR); 1355 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 1356 SNDRV_CHMAP_FL); 1357 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 1358 SNDRV_CHMAP_FR); 1359 1360 sm->max = le32_to_cpu(mc->max); 1361 sm->min = le32_to_cpu(mc->min); 1362 sm->invert = le32_to_cpu(mc->invert); 1363 sm->platform_max = le32_to_cpu(mc->platform_max); 1364 sm->dobj.index = tplg->index; 1365 INIT_LIST_HEAD(&sm->dobj.list); 1366 1367 /* map io handlers */ 1368 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg); 1369 if (err) { 1370 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1371 goto err_sm; 1372 } 1373 1374 /* create any TLV data */ 1375 err = soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr); 1376 if (err < 0) { 1377 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 1378 mc->hdr.name); 1379 goto err_sm; 1380 } 1381 1382 /* pass control to driver for optional further init */ 1383 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1384 (struct snd_soc_tplg_ctl_hdr *)mc); 1385 if (err < 0) { 1386 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1387 mc->hdr.name); 1388 goto err_sm; 1389 } 1390 } 1391 return kc; 1392 1393err_sm: 1394 for (; i >= 0; i--) { 1395 soc_tplg_free_tlv(tplg, &kc[i]); 1396 sm = (struct soc_mixer_control *)kc[i].private_value; 1397 kfree(sm); 1398 kfree(kc[i].name); 1399 } 1400 kfree(kc); 1401 1402 return NULL; 1403} 1404 1405static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create( 1406 struct soc_tplg *tplg, int num_kcontrols) 1407{ 1408 struct snd_kcontrol_new *kc; 1409 struct snd_soc_tplg_enum_control *ec; 1410 struct soc_enum *se; 1411 int i, err; 1412 1413 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1414 if (kc == NULL) 1415 return NULL; 1416 1417 for (i = 0; i < num_kcontrols; i++) { 1418 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1419 /* validate kcontrol */ 1420 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1421 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1422 goto err_se; 1423 1424 se = kzalloc(sizeof(*se), GFP_KERNEL); 1425 if (se == NULL) 1426 goto err_se; 1427 1428 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1429 le32_to_cpu(ec->priv.size)); 1430 1431 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1432 ec->hdr.name); 1433 1434 kc[i].private_value = (long)se; 1435 kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL); 1436 if (kc[i].name == NULL) 1437 goto err_se; 1438 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1439 kc[i].access = le32_to_cpu(ec->hdr.access); 1440 1441 /* we only support FL/FR channel mapping atm */ 1442 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1443 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1444 SNDRV_CHMAP_FL); 1445 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1446 SNDRV_CHMAP_FR); 1447 1448 se->items = le32_to_cpu(ec->items); 1449 se->mask = le32_to_cpu(ec->mask); 1450 se->dobj.index = tplg->index; 1451 1452 switch (le32_to_cpu(ec->hdr.ops.info)) { 1453 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1454 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1455 err = soc_tplg_denum_create_values(se, ec); 1456 if (err < 0) { 1457 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1458 ec->hdr.name); 1459 goto err_se; 1460 } 1461 fallthrough; 1462 case SND_SOC_TPLG_CTL_ENUM: 1463 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1464 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1465 err = soc_tplg_denum_create_texts(se, ec); 1466 if (err < 0) { 1467 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1468 ec->hdr.name); 1469 goto err_se; 1470 } 1471 break; 1472 default: 1473 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1474 ec->hdr.ops.info, ec->hdr.name); 1475 goto err_se; 1476 } 1477 1478 /* map io handlers */ 1479 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg); 1480 if (err) { 1481 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1482 goto err_se; 1483 } 1484 1485 /* pass control to driver for optional further init */ 1486 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1487 (struct snd_soc_tplg_ctl_hdr *)ec); 1488 if (err < 0) { 1489 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1490 ec->hdr.name); 1491 goto err_se; 1492 } 1493 } 1494 1495 return kc; 1496 1497err_se: 1498 for (; i >= 0; i--) { 1499 /* free values and texts */ 1500 se = (struct soc_enum *)kc[i].private_value; 1501 1502 if (se) { 1503 soc_tplg_denum_remove_values(se); 1504 soc_tplg_denum_remove_texts(se); 1505 } 1506 1507 kfree(se); 1508 kfree(kc[i].name); 1509 } 1510 kfree(kc); 1511 1512 return NULL; 1513} 1514 1515static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create( 1516 struct soc_tplg *tplg, int num_kcontrols) 1517{ 1518 struct snd_soc_tplg_bytes_control *be; 1519 struct soc_bytes_ext *sbe; 1520 struct snd_kcontrol_new *kc; 1521 int i, err; 1522 1523 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1524 if (!kc) 1525 return NULL; 1526 1527 for (i = 0; i < num_kcontrols; i++) { 1528 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1529 1530 /* validate kcontrol */ 1531 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1532 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1533 goto err_sbe; 1534 1535 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 1536 if (sbe == NULL) 1537 goto err_sbe; 1538 1539 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1540 le32_to_cpu(be->priv.size)); 1541 1542 dev_dbg(tplg->dev, 1543 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1544 be->hdr.name, be->hdr.access); 1545 1546 kc[i].private_value = (long)sbe; 1547 kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL); 1548 if (kc[i].name == NULL) 1549 goto err_sbe; 1550 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1551 kc[i].access = le32_to_cpu(be->hdr.access); 1552 1553 sbe->max = le32_to_cpu(be->max); 1554 INIT_LIST_HEAD(&sbe->dobj.list); 1555 1556 /* map standard io handlers and check for external handlers */ 1557 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg); 1558 if (err) { 1559 soc_control_err(tplg, &be->hdr, be->hdr.name); 1560 goto err_sbe; 1561 } 1562 1563 /* pass control to driver for optional further init */ 1564 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1565 (struct snd_soc_tplg_ctl_hdr *)be); 1566 if (err < 0) { 1567 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1568 be->hdr.name); 1569 goto err_sbe; 1570 } 1571 } 1572 1573 return kc; 1574 1575err_sbe: 1576 for (; i >= 0; i--) { 1577 sbe = (struct soc_bytes_ext *)kc[i].private_value; 1578 kfree(sbe); 1579 kfree(kc[i].name); 1580 } 1581 kfree(kc); 1582 1583 return NULL; 1584} 1585 1586static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1587 struct snd_soc_tplg_dapm_widget *w) 1588{ 1589 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1590 struct snd_soc_dapm_widget template, *widget; 1591 struct snd_soc_tplg_ctl_hdr *control_hdr; 1592 struct snd_soc_card *card = tplg->comp->card; 1593 unsigned int kcontrol_type; 1594 int ret = 0; 1595 1596 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1597 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1598 return -EINVAL; 1599 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1600 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1601 return -EINVAL; 1602 1603 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1604 w->name, w->id); 1605 1606 memset(&template, 0, sizeof(template)); 1607 1608 /* map user to kernel widget ID */ 1609 template.id = get_widget_id(le32_to_cpu(w->id)); 1610 if ((int)template.id < 0) 1611 return template.id; 1612 1613 /* strings are allocated here, but used and freed by the widget */ 1614 template.name = kstrdup(w->name, GFP_KERNEL); 1615 if (!template.name) 1616 return -ENOMEM; 1617 template.sname = kstrdup(w->sname, GFP_KERNEL); 1618 if (!template.sname) { 1619 ret = -ENOMEM; 1620 goto err; 1621 } 1622 template.reg = le32_to_cpu(w->reg); 1623 template.shift = le32_to_cpu(w->shift); 1624 template.mask = le32_to_cpu(w->mask); 1625 template.subseq = le32_to_cpu(w->subseq); 1626 template.on_val = w->invert ? 0 : 1; 1627 template.off_val = w->invert ? 1 : 0; 1628 template.ignore_suspend = le32_to_cpu(w->ignore_suspend); 1629 template.event_flags = le16_to_cpu(w->event_flags); 1630 template.dobj.index = tplg->index; 1631 1632 tplg->pos += 1633 (sizeof(struct snd_soc_tplg_dapm_widget) + 1634 le32_to_cpu(w->priv.size)); 1635 1636 if (w->num_kcontrols == 0) { 1637 kcontrol_type = 0; 1638 template.num_kcontrols = 0; 1639 goto widget; 1640 } 1641 1642 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1643 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n", 1644 w->name, w->num_kcontrols, control_hdr->type); 1645 1646 switch (le32_to_cpu(control_hdr->ops.info)) { 1647 case SND_SOC_TPLG_CTL_VOLSW: 1648 case SND_SOC_TPLG_CTL_STROBE: 1649 case SND_SOC_TPLG_CTL_VOLSW_SX: 1650 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1651 case SND_SOC_TPLG_CTL_RANGE: 1652 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1653 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */ 1654 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1655 template.kcontrol_news = 1656 soc_tplg_dapm_widget_dmixer_create(tplg, 1657 template.num_kcontrols); 1658 if (!template.kcontrol_news) { 1659 ret = -ENOMEM; 1660 goto hdr_err; 1661 } 1662 break; 1663 case SND_SOC_TPLG_CTL_ENUM: 1664 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1665 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1666 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1667 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1668 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */ 1669 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1670 template.kcontrol_news = 1671 soc_tplg_dapm_widget_denum_create(tplg, 1672 template.num_kcontrols); 1673 if (!template.kcontrol_news) { 1674 ret = -ENOMEM; 1675 goto hdr_err; 1676 } 1677 break; 1678 case SND_SOC_TPLG_CTL_BYTES: 1679 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */ 1680 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1681 template.kcontrol_news = 1682 soc_tplg_dapm_widget_dbytes_create(tplg, 1683 template.num_kcontrols); 1684 if (!template.kcontrol_news) { 1685 ret = -ENOMEM; 1686 goto hdr_err; 1687 } 1688 break; 1689 default: 1690 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1691 control_hdr->ops.get, control_hdr->ops.put, 1692 le32_to_cpu(control_hdr->ops.info)); 1693 ret = -EINVAL; 1694 goto hdr_err; 1695 } 1696 1697widget: 1698 ret = soc_tplg_widget_load(tplg, &template, w); 1699 if (ret < 0) 1700 goto hdr_err; 1701 1702 /* card dapm mutex is held by the core if we are loading topology 1703 * data during sound card init. */ 1704 if (card->instantiated) 1705 widget = snd_soc_dapm_new_control(dapm, &template); 1706 else 1707 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1708 if (IS_ERR(widget)) { 1709 ret = PTR_ERR(widget); 1710 goto hdr_err; 1711 } 1712 1713 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1714 widget->dobj.widget.kcontrol_type = kcontrol_type; 1715 widget->dobj.ops = tplg->ops; 1716 widget->dobj.index = tplg->index; 1717 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1718 1719 ret = soc_tplg_widget_ready(tplg, widget, w); 1720 if (ret < 0) 1721 goto ready_err; 1722 1723 kfree(template.sname); 1724 kfree(template.name); 1725 1726 return 0; 1727 1728ready_err: 1729 snd_soc_tplg_widget_remove(widget); 1730 snd_soc_dapm_free_widget(widget); 1731hdr_err: 1732 kfree(template.sname); 1733err: 1734 kfree(template.name); 1735 return ret; 1736} 1737 1738static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1739 struct snd_soc_tplg_hdr *hdr) 1740{ 1741 struct snd_soc_tplg_dapm_widget *widget; 1742 int ret, count, i; 1743 1744 count = le32_to_cpu(hdr->count); 1745 1746 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1747 1748 for (i = 0; i < count; i++) { 1749 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1750 if (le32_to_cpu(widget->size) != sizeof(*widget)) { 1751 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1752 return -EINVAL; 1753 } 1754 1755 ret = soc_tplg_dapm_widget_create(tplg, widget); 1756 if (ret < 0) { 1757 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1758 widget->name); 1759 return ret; 1760 } 1761 } 1762 1763 return 0; 1764} 1765 1766static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1767{ 1768 struct snd_soc_card *card = tplg->comp->card; 1769 int ret; 1770 1771 /* Card might not have been registered at this point. 1772 * If so, just return success. 1773 */ 1774 if (!card || !card->instantiated) { 1775 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1776 " widget card binding deferred\n"); 1777 return 0; 1778 } 1779 1780 ret = snd_soc_dapm_new_widgets(card); 1781 if (ret < 0) 1782 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1783 ret); 1784 1785 return 0; 1786} 1787 1788static int set_stream_info(struct snd_soc_pcm_stream *stream, 1789 struct snd_soc_tplg_stream_caps *caps) 1790{ 1791 stream->stream_name = kstrdup(caps->name, GFP_KERNEL); 1792 if (!stream->stream_name) 1793 return -ENOMEM; 1794 1795 stream->channels_min = le32_to_cpu(caps->channels_min); 1796 stream->channels_max = le32_to_cpu(caps->channels_max); 1797 stream->rates = le32_to_cpu(caps->rates); 1798 stream->rate_min = le32_to_cpu(caps->rate_min); 1799 stream->rate_max = le32_to_cpu(caps->rate_max); 1800 stream->formats = le64_to_cpu(caps->formats); 1801 stream->sig_bits = le32_to_cpu(caps->sig_bits); 1802 1803 return 0; 1804} 1805 1806static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1807 unsigned int flag_mask, unsigned int flags) 1808{ 1809 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1810 dai_drv->symmetric_rates = 1811 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1812 1813 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1814 dai_drv->symmetric_channels = 1815 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ? 1816 1 : 0; 1817 1818 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1819 dai_drv->symmetric_samplebits = 1820 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1821 1 : 0; 1822} 1823 1824static int soc_tplg_dai_create(struct soc_tplg *tplg, 1825 struct snd_soc_tplg_pcm *pcm) 1826{ 1827 struct snd_soc_dai_driver *dai_drv; 1828 struct snd_soc_pcm_stream *stream; 1829 struct snd_soc_tplg_stream_caps *caps; 1830 struct snd_soc_dai *dai; 1831 struct snd_soc_dapm_context *dapm = 1832 snd_soc_component_get_dapm(tplg->comp); 1833 int ret; 1834 1835 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1836 if (dai_drv == NULL) 1837 return -ENOMEM; 1838 1839 if (strlen(pcm->dai_name)) { 1840 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL); 1841 if (!dai_drv->name) { 1842 ret = -ENOMEM; 1843 goto err; 1844 } 1845 } 1846 dai_drv->id = le32_to_cpu(pcm->dai_id); 1847 1848 if (pcm->playback) { 1849 stream = &dai_drv->playback; 1850 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1851 ret = set_stream_info(stream, caps); 1852 if (ret < 0) 1853 goto err; 1854 } 1855 1856 if (pcm->capture) { 1857 stream = &dai_drv->capture; 1858 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1859 ret = set_stream_info(stream, caps); 1860 if (ret < 0) 1861 goto err; 1862 } 1863 1864 if (pcm->compress) 1865 dai_drv->compress_new = snd_soc_new_compress; 1866 1867 /* pass control to component driver for optional further init */ 1868 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1869 if (ret < 0) { 1870 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 1871 goto err; 1872 } 1873 1874 dai_drv->dobj.index = tplg->index; 1875 dai_drv->dobj.ops = tplg->ops; 1876 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1877 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1878 1879 /* register the DAI to the component */ 1880 dai = snd_soc_register_dai(tplg->comp, dai_drv, false); 1881 if (!dai) 1882 return -ENOMEM; 1883 1884 /* Create the DAI widgets here */ 1885 ret = snd_soc_dapm_new_dai_widgets(dapm, dai); 1886 if (ret != 0) { 1887 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret); 1888 snd_soc_unregister_dai(dai); 1889 return ret; 1890 } 1891 1892 return 0; 1893 1894err: 1895 kfree(dai_drv->playback.stream_name); 1896 kfree(dai_drv->capture.stream_name); 1897 kfree(dai_drv->name); 1898 kfree(dai_drv); 1899 1900 return ret; 1901} 1902 1903static void set_link_flags(struct snd_soc_dai_link *link, 1904 unsigned int flag_mask, unsigned int flags) 1905{ 1906 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1907 link->symmetric_rates = 1908 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1909 1910 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1911 link->symmetric_channels = 1912 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ? 1913 1 : 0; 1914 1915 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1916 link->symmetric_samplebits = 1917 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1918 1 : 0; 1919 1920 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1921 link->ignore_suspend = 1922 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ? 1923 1 : 0; 1924} 1925 1926/* create the FE DAI link */ 1927static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1928 struct snd_soc_tplg_pcm *pcm) 1929{ 1930 struct snd_soc_dai_link *link; 1931 struct snd_soc_dai_link_component *dlc; 1932 int ret; 1933 1934 /* link + cpu + codec + platform */ 1935 link = kzalloc(sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1936 if (link == NULL) 1937 return -ENOMEM; 1938 1939 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1940 1941 link->cpus = &dlc[0]; 1942 link->codecs = &dlc[1]; 1943 link->platforms = &dlc[2]; 1944 1945 link->num_cpus = 1; 1946 link->num_codecs = 1; 1947 link->num_platforms = 1; 1948 1949 link->dobj.index = tplg->index; 1950 link->dobj.ops = tplg->ops; 1951 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1952 1953 if (strlen(pcm->pcm_name)) { 1954 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1955 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1956 if (!link->name || !link->stream_name) { 1957 ret = -ENOMEM; 1958 goto err; 1959 } 1960 } 1961 link->id = le32_to_cpu(pcm->pcm_id); 1962 1963 if (strlen(pcm->dai_name)) { 1964 link->cpus->dai_name = kstrdup(pcm->dai_name, GFP_KERNEL); 1965 if (!link->cpus->dai_name) { 1966 ret = -ENOMEM; 1967 goto err; 1968 } 1969 } 1970 1971 link->codecs->name = "snd-soc-dummy"; 1972 link->codecs->dai_name = "snd-soc-dummy-dai"; 1973 1974 link->platforms->name = "snd-soc-dummy"; 1975 1976 /* enable DPCM */ 1977 link->dynamic = 1; 1978 link->dpcm_playback = le32_to_cpu(pcm->playback); 1979 link->dpcm_capture = le32_to_cpu(pcm->capture); 1980 if (pcm->flag_mask) 1981 set_link_flags(link, 1982 le32_to_cpu(pcm->flag_mask), 1983 le32_to_cpu(pcm->flags)); 1984 1985 /* pass control to component driver for optional further init */ 1986 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1987 if (ret < 0) { 1988 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n"); 1989 goto err; 1990 } 1991 1992 ret = snd_soc_add_pcm_runtime(tplg->comp->card, link); 1993 if (ret < 0) { 1994 dev_err(tplg->comp->dev, "ASoC: adding FE link failed\n"); 1995 goto err; 1996 } 1997 1998 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1999 2000 return 0; 2001err: 2002 kfree(link->name); 2003 kfree(link->stream_name); 2004 kfree(link->cpus->dai_name); 2005 kfree(link); 2006 return ret; 2007} 2008 2009/* create a FE DAI and DAI link from the PCM object */ 2010static int soc_tplg_pcm_create(struct soc_tplg *tplg, 2011 struct snd_soc_tplg_pcm *pcm) 2012{ 2013 int ret; 2014 2015 ret = soc_tplg_dai_create(tplg, pcm); 2016 if (ret < 0) 2017 return ret; 2018 2019 return soc_tplg_fe_link_create(tplg, pcm); 2020} 2021 2022/* copy stream caps from the old version 4 of source */ 2023static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 2024 struct snd_soc_tplg_stream_caps_v4 *src) 2025{ 2026 dest->size = cpu_to_le32(sizeof(*dest)); 2027 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2028 dest->formats = src->formats; 2029 dest->rates = src->rates; 2030 dest->rate_min = src->rate_min; 2031 dest->rate_max = src->rate_max; 2032 dest->channels_min = src->channels_min; 2033 dest->channels_max = src->channels_max; 2034 dest->periods_min = src->periods_min; 2035 dest->periods_max = src->periods_max; 2036 dest->period_size_min = src->period_size_min; 2037 dest->period_size_max = src->period_size_max; 2038 dest->buffer_size_min = src->buffer_size_min; 2039 dest->buffer_size_max = src->buffer_size_max; 2040} 2041 2042/** 2043 * pcm_new_ver - Create the new version of PCM from the old version. 2044 * @tplg: topology context 2045 * @src: older version of pcm as a source 2046 * @pcm: latest version of pcm created from the source 2047 * 2048 * Support from vesion 4. User should free the returned pcm manually. 2049 */ 2050static int pcm_new_ver(struct soc_tplg *tplg, 2051 struct snd_soc_tplg_pcm *src, 2052 struct snd_soc_tplg_pcm **pcm) 2053{ 2054 struct snd_soc_tplg_pcm *dest; 2055 struct snd_soc_tplg_pcm_v4 *src_v4; 2056 int i; 2057 2058 *pcm = NULL; 2059 2060 if (le32_to_cpu(src->size) != sizeof(*src_v4)) { 2061 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 2062 return -EINVAL; 2063 } 2064 2065 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 2066 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 2067 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2068 if (!dest) 2069 return -ENOMEM; 2070 2071 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2072 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2073 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2074 dest->pcm_id = src_v4->pcm_id; 2075 dest->dai_id = src_v4->dai_id; 2076 dest->playback = src_v4->playback; 2077 dest->capture = src_v4->capture; 2078 dest->compress = src_v4->compress; 2079 dest->num_streams = src_v4->num_streams; 2080 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2081 memcpy(&dest->stream[i], &src_v4->stream[i], 2082 sizeof(struct snd_soc_tplg_stream)); 2083 2084 for (i = 0; i < 2; i++) 2085 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 2086 2087 *pcm = dest; 2088 return 0; 2089} 2090 2091static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 2092 struct snd_soc_tplg_hdr *hdr) 2093{ 2094 struct snd_soc_tplg_pcm *pcm, *_pcm; 2095 int count; 2096 int size; 2097 int i; 2098 bool abi_match; 2099 int ret; 2100 2101 count = le32_to_cpu(hdr->count); 2102 2103 /* check the element size and count */ 2104 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 2105 size = le32_to_cpu(pcm->size); 2106 if (size > sizeof(struct snd_soc_tplg_pcm) 2107 || size < sizeof(struct snd_soc_tplg_pcm_v4)) { 2108 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 2109 size); 2110 return -EINVAL; 2111 } 2112 2113 if (soc_tplg_check_elem_count(tplg, 2114 size, count, 2115 le32_to_cpu(hdr->payload_size), 2116 "PCM DAI")) { 2117 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 2118 count); 2119 return -EINVAL; 2120 } 2121 2122 for (i = 0; i < count; i++) { 2123 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 2124 size = le32_to_cpu(pcm->size); 2125 2126 /* check ABI version by size, create a new version of pcm 2127 * if abi not match. 2128 */ 2129 if (size == sizeof(*pcm)) { 2130 abi_match = true; 2131 _pcm = pcm; 2132 } else { 2133 abi_match = false; 2134 ret = pcm_new_ver(tplg, pcm, &_pcm); 2135 if (ret < 0) 2136 return ret; 2137 } 2138 2139 /* create the FE DAIs and DAI links */ 2140 ret = soc_tplg_pcm_create(tplg, _pcm); 2141 if (ret < 0) { 2142 if (!abi_match) 2143 kfree(_pcm); 2144 return ret; 2145 } 2146 2147 /* offset by version-specific struct size and 2148 * real priv data size 2149 */ 2150 tplg->pos += size + le32_to_cpu(_pcm->priv.size); 2151 2152 if (!abi_match) 2153 kfree(_pcm); /* free the duplicated one */ 2154 } 2155 2156 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 2157 2158 return 0; 2159} 2160 2161/** 2162 * set_link_hw_format - Set the HW audio format of the physical DAI link. 2163 * @link: &snd_soc_dai_link which should be updated 2164 * @cfg: physical link configs. 2165 * 2166 * Topology context contains a list of supported HW formats (configs) and 2167 * a default format ID for the physical link. This function will use this 2168 * default ID to choose the HW format to set the link's DAI format for init. 2169 */ 2170static void set_link_hw_format(struct snd_soc_dai_link *link, 2171 struct snd_soc_tplg_link_config *cfg) 2172{ 2173 struct snd_soc_tplg_hw_config *hw_config; 2174 unsigned char bclk_master, fsync_master; 2175 unsigned char invert_bclk, invert_fsync; 2176 int i; 2177 2178 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 2179 hw_config = &cfg->hw_config[i]; 2180 if (hw_config->id != cfg->default_hw_config_id) 2181 continue; 2182 2183 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 2184 SND_SOC_DAIFMT_FORMAT_MASK; 2185 2186 /* clock gating */ 2187 switch (hw_config->clock_gated) { 2188 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 2189 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 2190 break; 2191 2192 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 2193 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 2194 break; 2195 2196 default: 2197 /* ignore the value */ 2198 break; 2199 } 2200 2201 /* clock signal polarity */ 2202 invert_bclk = hw_config->invert_bclk; 2203 invert_fsync = hw_config->invert_fsync; 2204 if (!invert_bclk && !invert_fsync) 2205 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 2206 else if (!invert_bclk && invert_fsync) 2207 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 2208 else if (invert_bclk && !invert_fsync) 2209 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 2210 else 2211 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 2212 2213 /* clock masters */ 2214 bclk_master = (hw_config->bclk_master == 2215 SND_SOC_TPLG_BCLK_CM); 2216 fsync_master = (hw_config->fsync_master == 2217 SND_SOC_TPLG_FSYNC_CM); 2218 if (bclk_master && fsync_master) 2219 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; 2220 else if (!bclk_master && fsync_master) 2221 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; 2222 else if (bclk_master && !fsync_master) 2223 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; 2224 else 2225 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; 2226 } 2227} 2228 2229/** 2230 * link_new_ver - Create a new physical link config from the old 2231 * version of source. 2232 * @tplg: topology context 2233 * @src: old version of phyical link config as a source 2234 * @link: latest version of physical link config created from the source 2235 * 2236 * Support from vesion 4. User need free the returned link config manually. 2237 */ 2238static int link_new_ver(struct soc_tplg *tplg, 2239 struct snd_soc_tplg_link_config *src, 2240 struct snd_soc_tplg_link_config **link) 2241{ 2242 struct snd_soc_tplg_link_config *dest; 2243 struct snd_soc_tplg_link_config_v4 *src_v4; 2244 int i; 2245 2246 *link = NULL; 2247 2248 if (le32_to_cpu(src->size) != 2249 sizeof(struct snd_soc_tplg_link_config_v4)) { 2250 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2251 return -EINVAL; 2252 } 2253 2254 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2255 2256 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2257 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2258 if (!dest) 2259 return -ENOMEM; 2260 2261 dest->size = cpu_to_le32(sizeof(*dest)); 2262 dest->id = src_v4->id; 2263 dest->num_streams = src_v4->num_streams; 2264 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2265 memcpy(&dest->stream[i], &src_v4->stream[i], 2266 sizeof(struct snd_soc_tplg_stream)); 2267 2268 *link = dest; 2269 return 0; 2270} 2271 2272/** 2273 * snd_soc_find_dai_link - Find a DAI link 2274 * 2275 * @card: soc card 2276 * @id: DAI link ID to match 2277 * @name: DAI link name to match, optional 2278 * @stream_name: DAI link stream name to match, optional 2279 * 2280 * This function will search all existing DAI links of the soc card to 2281 * find the link of the same ID. Since DAI links may not have their 2282 * unique ID, so name and stream name should also match if being 2283 * specified. 2284 * 2285 * Return: pointer of DAI link, or NULL if not found. 2286 */ 2287static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, 2288 int id, const char *name, 2289 const char *stream_name) 2290{ 2291 struct snd_soc_pcm_runtime *rtd; 2292 struct snd_soc_dai_link *link; 2293 2294 for_each_card_rtds(card, rtd) { 2295 link = rtd->dai_link; 2296 2297 if (link->id != id) 2298 continue; 2299 2300 if (name && (!link->name || strcmp(name, link->name))) 2301 continue; 2302 2303 if (stream_name && (!link->stream_name 2304 || strcmp(stream_name, link->stream_name))) 2305 continue; 2306 2307 return link; 2308 } 2309 2310 return NULL; 2311} 2312 2313/* Find and configure an existing physical DAI link */ 2314static int soc_tplg_link_config(struct soc_tplg *tplg, 2315 struct snd_soc_tplg_link_config *cfg) 2316{ 2317 struct snd_soc_dai_link *link; 2318 const char *name, *stream_name; 2319 size_t len; 2320 int ret; 2321 2322 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2323 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2324 return -EINVAL; 2325 else if (len) 2326 name = cfg->name; 2327 else 2328 name = NULL; 2329 2330 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2331 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2332 return -EINVAL; 2333 else if (len) 2334 stream_name = cfg->stream_name; 2335 else 2336 stream_name = NULL; 2337 2338 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 2339 name, stream_name); 2340 if (!link) { 2341 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2342 name, cfg->id); 2343 return -EINVAL; 2344 } 2345 2346 /* hw format */ 2347 if (cfg->num_hw_configs) 2348 set_link_hw_format(link, cfg); 2349 2350 /* flags */ 2351 if (cfg->flag_mask) 2352 set_link_flags(link, 2353 le32_to_cpu(cfg->flag_mask), 2354 le32_to_cpu(cfg->flags)); 2355 2356 /* pass control to component driver for optional further init */ 2357 ret = soc_tplg_dai_link_load(tplg, link, cfg); 2358 if (ret < 0) { 2359 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2360 return ret; 2361 } 2362 2363 /* for unloading it in snd_soc_tplg_component_remove */ 2364 link->dobj.index = tplg->index; 2365 link->dobj.ops = tplg->ops; 2366 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 2367 list_add(&link->dobj.list, &tplg->comp->dobj_list); 2368 2369 return 0; 2370} 2371 2372 2373/* Load physical link config elements from the topology context */ 2374static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2375 struct snd_soc_tplg_hdr *hdr) 2376{ 2377 struct snd_soc_tplg_link_config *link, *_link; 2378 int count; 2379 int size; 2380 int i, ret; 2381 bool abi_match; 2382 2383 count = le32_to_cpu(hdr->count); 2384 2385 /* check the element size and count */ 2386 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2387 size = le32_to_cpu(link->size); 2388 if (size > sizeof(struct snd_soc_tplg_link_config) 2389 || size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2390 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2391 size); 2392 return -EINVAL; 2393 } 2394 2395 if (soc_tplg_check_elem_count(tplg, 2396 size, count, 2397 le32_to_cpu(hdr->payload_size), 2398 "physical link config")) { 2399 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2400 count); 2401 return -EINVAL; 2402 } 2403 2404 /* config physical DAI links */ 2405 for (i = 0; i < count; i++) { 2406 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2407 size = le32_to_cpu(link->size); 2408 if (size == sizeof(*link)) { 2409 abi_match = true; 2410 _link = link; 2411 } else { 2412 abi_match = false; 2413 ret = link_new_ver(tplg, link, &_link); 2414 if (ret < 0) 2415 return ret; 2416 } 2417 2418 ret = soc_tplg_link_config(tplg, _link); 2419 if (ret < 0) { 2420 if (!abi_match) 2421 kfree(_link); 2422 return ret; 2423 } 2424 2425 /* offset by version-specific struct size and 2426 * real priv data size 2427 */ 2428 tplg->pos += size + le32_to_cpu(_link->priv.size); 2429 2430 if (!abi_match) 2431 kfree(_link); /* free the duplicated one */ 2432 } 2433 2434 return 0; 2435} 2436 2437/** 2438 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2439 * @tplg: topology context 2440 * @d: physical DAI configs. 2441 * 2442 * The physical dai should already be registered by the platform driver. 2443 * The platform driver should specify the DAI name and ID for matching. 2444 */ 2445static int soc_tplg_dai_config(struct soc_tplg *tplg, 2446 struct snd_soc_tplg_dai *d) 2447{ 2448 struct snd_soc_dai_link_component dai_component; 2449 struct snd_soc_dai *dai; 2450 struct snd_soc_dai_driver *dai_drv; 2451 struct snd_soc_pcm_stream *stream; 2452 struct snd_soc_tplg_stream_caps *caps; 2453 int ret; 2454 2455 memset(&dai_component, 0, sizeof(dai_component)); 2456 2457 dai_component.dai_name = d->dai_name; 2458 dai = snd_soc_find_dai(&dai_component); 2459 if (!dai) { 2460 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2461 d->dai_name); 2462 return -EINVAL; 2463 } 2464 2465 if (le32_to_cpu(d->dai_id) != dai->id) { 2466 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2467 d->dai_name); 2468 return -EINVAL; 2469 } 2470 2471 dai_drv = dai->driver; 2472 if (!dai_drv) 2473 return -EINVAL; 2474 2475 if (d->playback) { 2476 stream = &dai_drv->playback; 2477 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2478 ret = set_stream_info(stream, caps); 2479 if (ret < 0) 2480 goto err; 2481 } 2482 2483 if (d->capture) { 2484 stream = &dai_drv->capture; 2485 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2486 ret = set_stream_info(stream, caps); 2487 if (ret < 0) 2488 goto err; 2489 } 2490 2491 if (d->flag_mask) 2492 set_dai_flags(dai_drv, 2493 le32_to_cpu(d->flag_mask), 2494 le32_to_cpu(d->flags)); 2495 2496 /* pass control to component driver for optional further init */ 2497 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2498 if (ret < 0) { 2499 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 2500 goto err; 2501 } 2502 2503 return 0; 2504 2505err: 2506 kfree(dai_drv->playback.stream_name); 2507 kfree(dai_drv->capture.stream_name); 2508 return ret; 2509} 2510 2511/* load physical DAI elements */ 2512static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2513 struct snd_soc_tplg_hdr *hdr) 2514{ 2515 struct snd_soc_tplg_dai *dai; 2516 int count; 2517 int i, ret; 2518 2519 count = le32_to_cpu(hdr->count); 2520 2521 /* config the existing BE DAIs */ 2522 for (i = 0; i < count; i++) { 2523 dai = (struct snd_soc_tplg_dai *)tplg->pos; 2524 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 2525 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2526 return -EINVAL; 2527 } 2528 2529 ret = soc_tplg_dai_config(tplg, dai); 2530 if (ret < 0) { 2531 dev_err(tplg->dev, "ASoC: failed to configure DAI\n"); 2532 return ret; 2533 } 2534 2535 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 2536 } 2537 2538 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2539 return 0; 2540} 2541 2542/** 2543 * manifest_new_ver - Create a new version of manifest from the old version 2544 * of source. 2545 * @tplg: topology context 2546 * @src: old version of manifest as a source 2547 * @manifest: latest version of manifest created from the source 2548 * 2549 * Support from vesion 4. Users need free the returned manifest manually. 2550 */ 2551static int manifest_new_ver(struct soc_tplg *tplg, 2552 struct snd_soc_tplg_manifest *src, 2553 struct snd_soc_tplg_manifest **manifest) 2554{ 2555 struct snd_soc_tplg_manifest *dest; 2556 struct snd_soc_tplg_manifest_v4 *src_v4; 2557 int size; 2558 2559 *manifest = NULL; 2560 2561 size = le32_to_cpu(src->size); 2562 if (size != sizeof(*src_v4)) { 2563 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", 2564 size); 2565 if (size) 2566 return -EINVAL; 2567 src->size = cpu_to_le32(sizeof(*src_v4)); 2568 } 2569 2570 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2571 2572 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2573 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size), 2574 GFP_KERNEL); 2575 if (!dest) 2576 return -ENOMEM; 2577 2578 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2579 dest->control_elems = src_v4->control_elems; 2580 dest->widget_elems = src_v4->widget_elems; 2581 dest->graph_elems = src_v4->graph_elems; 2582 dest->pcm_elems = src_v4->pcm_elems; 2583 dest->dai_link_elems = src_v4->dai_link_elems; 2584 dest->priv.size = src_v4->priv.size; 2585 if (dest->priv.size) 2586 memcpy(dest->priv.data, src_v4->priv.data, 2587 le32_to_cpu(src_v4->priv.size)); 2588 2589 *manifest = dest; 2590 return 0; 2591} 2592 2593static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2594 struct snd_soc_tplg_hdr *hdr) 2595{ 2596 struct snd_soc_tplg_manifest *manifest, *_manifest; 2597 bool abi_match; 2598 int ret = 0; 2599 2600 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2601 2602 /* check ABI version by size, create a new manifest if abi not match */ 2603 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) { 2604 abi_match = true; 2605 _manifest = manifest; 2606 } else { 2607 abi_match = false; 2608 ret = manifest_new_ver(tplg, manifest, &_manifest); 2609 if (ret < 0) 2610 return ret; 2611 } 2612 2613 /* pass control to component driver for optional further init */ 2614 if (tplg->ops && tplg->ops->manifest) 2615 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest); 2616 2617 if (!abi_match) /* free the duplicated one */ 2618 kfree(_manifest); 2619 2620 return ret; 2621} 2622 2623/* validate header magic, size and type */ 2624static int soc_valid_header(struct soc_tplg *tplg, 2625 struct snd_soc_tplg_hdr *hdr) 2626{ 2627 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2628 return 0; 2629 2630 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 2631 dev_err(tplg->dev, 2632 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2633 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2634 tplg->fw->size); 2635 return -EINVAL; 2636 } 2637 2638 /* big endian firmware objects not supported atm */ 2639 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) { 2640 dev_err(tplg->dev, 2641 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2642 tplg->pass, hdr->magic, 2643 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2644 return -EINVAL; 2645 } 2646 2647 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2648 dev_err(tplg->dev, 2649 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2650 tplg->pass, hdr->magic, 2651 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2652 return -EINVAL; 2653 } 2654 2655 /* Support ABI from version 4 */ 2656 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2657 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2658 dev_err(tplg->dev, 2659 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2660 tplg->pass, hdr->abi, 2661 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2662 tplg->fw->size); 2663 return -EINVAL; 2664 } 2665 2666 if (hdr->payload_size == 0) { 2667 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2668 soc_tplg_get_hdr_offset(tplg)); 2669 return -EINVAL; 2670 } 2671 2672 return 1; 2673} 2674 2675/* check header type and call appropriate handler */ 2676static int soc_tplg_load_header(struct soc_tplg *tplg, 2677 struct snd_soc_tplg_hdr *hdr) 2678{ 2679 int (*elem_load)(struct soc_tplg *tplg, 2680 struct snd_soc_tplg_hdr *hdr); 2681 unsigned int hdr_pass; 2682 2683 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2684 2685 /* check for matching ID */ 2686 if (le32_to_cpu(hdr->index) != tplg->req_index && 2687 tplg->req_index != SND_SOC_TPLG_INDEX_ALL) 2688 return 0; 2689 2690 tplg->index = le32_to_cpu(hdr->index); 2691 2692 switch (le32_to_cpu(hdr->type)) { 2693 case SND_SOC_TPLG_TYPE_MIXER: 2694 case SND_SOC_TPLG_TYPE_ENUM: 2695 case SND_SOC_TPLG_TYPE_BYTES: 2696 hdr_pass = SOC_TPLG_PASS_MIXER; 2697 elem_load = soc_tplg_kcontrol_elems_load; 2698 break; 2699 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2700 hdr_pass = SOC_TPLG_PASS_GRAPH; 2701 elem_load = soc_tplg_dapm_graph_elems_load; 2702 break; 2703 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2704 hdr_pass = SOC_TPLG_PASS_WIDGET; 2705 elem_load = soc_tplg_dapm_widget_elems_load; 2706 break; 2707 case SND_SOC_TPLG_TYPE_PCM: 2708 hdr_pass = SOC_TPLG_PASS_PCM_DAI; 2709 elem_load = soc_tplg_pcm_elems_load; 2710 break; 2711 case SND_SOC_TPLG_TYPE_DAI: 2712 hdr_pass = SOC_TPLG_PASS_BE_DAI; 2713 elem_load = soc_tplg_dai_elems_load; 2714 break; 2715 case SND_SOC_TPLG_TYPE_DAI_LINK: 2716 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2717 /* physical link configurations */ 2718 hdr_pass = SOC_TPLG_PASS_LINK; 2719 elem_load = soc_tplg_link_elems_load; 2720 break; 2721 case SND_SOC_TPLG_TYPE_MANIFEST: 2722 hdr_pass = SOC_TPLG_PASS_MANIFEST; 2723 elem_load = soc_tplg_manifest_load; 2724 break; 2725 default: 2726 /* bespoke vendor data object */ 2727 hdr_pass = SOC_TPLG_PASS_VENDOR; 2728 elem_load = soc_tplg_vendor_load; 2729 break; 2730 } 2731 2732 if (tplg->pass == hdr_pass) { 2733 dev_dbg(tplg->dev, 2734 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2735 hdr->payload_size, hdr->type, hdr->version, 2736 hdr->vendor_type, tplg->pass); 2737 return elem_load(tplg, hdr); 2738 } 2739 2740 return 0; 2741} 2742 2743/* process the topology file headers */ 2744static int soc_tplg_process_headers(struct soc_tplg *tplg) 2745{ 2746 struct snd_soc_tplg_hdr *hdr; 2747 int ret; 2748 2749 tplg->pass = SOC_TPLG_PASS_START; 2750 2751 /* process the header types from start to end */ 2752 while (tplg->pass <= SOC_TPLG_PASS_END) { 2753 2754 tplg->hdr_pos = tplg->fw->data; 2755 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2756 2757 while (!soc_tplg_is_eof(tplg)) { 2758 2759 /* make sure header is valid before loading */ 2760 ret = soc_valid_header(tplg, hdr); 2761 if (ret < 0) { 2762 dev_err(tplg->dev, 2763 "ASoC: topology: invalid header: %d\n", ret); 2764 return ret; 2765 } else if (ret == 0) { 2766 break; 2767 } 2768 2769 /* load the header object */ 2770 ret = soc_tplg_load_header(tplg, hdr); 2771 if (ret < 0) { 2772 dev_err(tplg->dev, 2773 "ASoC: topology: could not load header: %d\n", ret); 2774 return ret; 2775 } 2776 2777 /* goto next header */ 2778 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2779 sizeof(struct snd_soc_tplg_hdr); 2780 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2781 } 2782 2783 /* next data type pass */ 2784 tplg->pass++; 2785 } 2786 2787 /* signal DAPM we are complete */ 2788 ret = soc_tplg_dapm_complete(tplg); 2789 if (ret < 0) 2790 dev_err(tplg->dev, 2791 "ASoC: failed to initialise DAPM from Firmware\n"); 2792 2793 return ret; 2794} 2795 2796static int soc_tplg_load(struct soc_tplg *tplg) 2797{ 2798 int ret; 2799 2800 ret = soc_tplg_process_headers(tplg); 2801 if (ret == 0) 2802 soc_tplg_complete(tplg); 2803 2804 return ret; 2805} 2806 2807/* load audio component topology from "firmware" file */ 2808int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2809 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) 2810{ 2811 struct soc_tplg tplg; 2812 int ret; 2813 2814 /* component needs to exist to keep and reference data while parsing */ 2815 if (!comp) 2816 return -EINVAL; 2817 2818 /* setup parsing context */ 2819 memset(&tplg, 0, sizeof(tplg)); 2820 tplg.fw = fw; 2821 tplg.dev = comp->dev; 2822 tplg.comp = comp; 2823 tplg.ops = ops; 2824 tplg.req_index = id; 2825 tplg.io_ops = ops->io_ops; 2826 tplg.io_ops_count = ops->io_ops_count; 2827 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2828 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2829 2830 ret = soc_tplg_load(&tplg); 2831 /* free the created components if fail to load topology */ 2832 if (ret) 2833 snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL); 2834 2835 return ret; 2836} 2837EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2838 2839/* remove this dynamic widget */ 2840void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) 2841{ 2842 /* make sure we are a widget */ 2843 if (w->dobj.type != SND_SOC_DOBJ_WIDGET) 2844 return; 2845 2846 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); 2847} 2848EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); 2849 2850/* remove all dynamic widgets from this DAPM context */ 2851void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, 2852 u32 index) 2853{ 2854 struct snd_soc_dapm_widget *w, *next_w; 2855 2856 for_each_card_widgets_safe(dapm->card, w, next_w) { 2857 2858 /* make sure we are a widget with correct context */ 2859 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) 2860 continue; 2861 2862 /* match ID */ 2863 if (w->dobj.index != index && 2864 w->dobj.index != SND_SOC_TPLG_INDEX_ALL) 2865 continue; 2866 /* check and free and dynamic widget kcontrols */ 2867 snd_soc_tplg_widget_remove(w); 2868 snd_soc_dapm_free_widget(w); 2869 } 2870 snd_soc_dapm_reset_cache(dapm); 2871} 2872EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); 2873 2874/* remove dynamic controls from the component driver */ 2875int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) 2876{ 2877 struct snd_card *card = comp->card->snd_card; 2878 struct snd_soc_dobj *dobj, *next_dobj; 2879 int pass = SOC_TPLG_PASS_END; 2880 2881 /* process the header types from end to start */ 2882 while (pass >= SOC_TPLG_PASS_START) { 2883 2884 /* remove mixer controls */ 2885 down_write(&card->controls_rwsem); 2886 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2887 list) { 2888 2889 /* match index */ 2890 if (dobj->index != index && 2891 index != SND_SOC_TPLG_INDEX_ALL) 2892 continue; 2893 2894 switch (dobj->type) { 2895 case SND_SOC_DOBJ_MIXER: 2896 remove_mixer(comp, dobj, pass); 2897 break; 2898 case SND_SOC_DOBJ_ENUM: 2899 remove_enum(comp, dobj, pass); 2900 break; 2901 case SND_SOC_DOBJ_BYTES: 2902 remove_bytes(comp, dobj, pass); 2903 break; 2904 case SND_SOC_DOBJ_GRAPH: 2905 remove_route(comp, dobj, pass); 2906 break; 2907 case SND_SOC_DOBJ_WIDGET: 2908 remove_widget(comp, dobj, pass); 2909 break; 2910 case SND_SOC_DOBJ_PCM: 2911 remove_dai(comp, dobj, pass); 2912 break; 2913 case SND_SOC_DOBJ_DAI_LINK: 2914 remove_link(comp, dobj, pass); 2915 break; 2916 case SND_SOC_DOBJ_BACKEND_LINK: 2917 /* 2918 * call link_unload ops if extra 2919 * deinitialization is needed. 2920 */ 2921 remove_backend_link(comp, dobj, pass); 2922 break; 2923 default: 2924 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2925 dobj->type); 2926 break; 2927 } 2928 } 2929 up_write(&card->controls_rwsem); 2930 pass--; 2931 } 2932 2933 /* let caller know if FW can be freed when no objects are left */ 2934 return !list_empty(&comp->dobj_list); 2935} 2936EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2937