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_CONTROL 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_BE_DAI 6 48 #define SOC_TPLG_PASS_LINK 7 49 50 #define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST 51 #define SOC_TPLG_PASS_END SOC_TPLG_PASS_LINK 52 53 /* topology context */ 54 struct soc_tplg { 55 const struct firmware *fw; 56 57 /* runtime FW parsing */ 58 const u8 *pos; /* read position */ 59 const u8 *hdr_pos; /* header position */ 60 unsigned int pass; /* pass number */ 61 62 /* component caller */ 63 struct device *dev; 64 struct snd_soc_component *comp; 65 u32 index; /* current block index */ 66 67 /* vendor specific kcontrol operations */ 68 const struct snd_soc_tplg_kcontrol_ops *io_ops; 69 int io_ops_count; 70 71 /* vendor specific bytes ext handlers, for TLV bytes controls */ 72 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops; 73 int bytes_ext_ops_count; 74 75 /* optional fw loading callbacks to component drivers */ 76 struct snd_soc_tplg_ops *ops; 77 }; 78 79 /* check we dont overflow the data for this control chunk */ 80 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size, 81 unsigned int count, size_t bytes, const char *elem_type) 82 { 83 const u8 *end = tplg->pos + elem_size * count; 84 85 if (end > tplg->fw->data + tplg->fw->size) { 86 dev_err(tplg->dev, "ASoC: %s overflow end of data\n", 87 elem_type); 88 return -EINVAL; 89 } 90 91 /* check there is enough room in chunk for control. 92 extra bytes at the end of control are for vendor data here */ 93 if (elem_size * count > bytes) { 94 dev_err(tplg->dev, 95 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n", 96 elem_type, count, elem_size, bytes); 97 return -EINVAL; 98 } 99 100 return 0; 101 } 102 103 static inline bool soc_tplg_is_eof(struct soc_tplg *tplg) 104 { 105 const u8 *end = tplg->hdr_pos; 106 107 if (end >= tplg->fw->data + tplg->fw->size) 108 return true; 109 return false; 110 } 111 112 static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg) 113 { 114 return (unsigned long)(tplg->hdr_pos - tplg->fw->data); 115 } 116 117 static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg) 118 { 119 return (unsigned long)(tplg->pos - tplg->fw->data); 120 } 121 122 /* mapping of Kcontrol types and associated operations. */ 123 static const struct snd_soc_tplg_kcontrol_ops io_ops[] = { 124 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw, 125 snd_soc_put_volsw, snd_soc_info_volsw}, 126 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx, 127 snd_soc_put_volsw_sx, NULL}, 128 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double, 129 snd_soc_put_enum_double, snd_soc_info_enum_double}, 130 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double, 131 snd_soc_put_enum_double, NULL}, 132 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get, 133 snd_soc_bytes_put, snd_soc_bytes_info}, 134 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range, 135 snd_soc_put_volsw_range, snd_soc_info_volsw_range}, 136 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx, 137 snd_soc_put_xr_sx, snd_soc_info_xr_sx}, 138 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe, 139 snd_soc_put_strobe, NULL}, 140 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw, 141 snd_soc_dapm_put_volsw, snd_soc_info_volsw}, 142 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double, 143 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double}, 144 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double, 145 snd_soc_dapm_put_enum_double, NULL}, 146 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double, 147 snd_soc_dapm_put_enum_double, NULL}, 148 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch, 149 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch}, 150 }; 151 152 struct soc_tplg_map { 153 int uid; 154 int kid; 155 }; 156 157 /* mapping of widget types from UAPI IDs to kernel IDs */ 158 static const struct soc_tplg_map dapm_map[] = { 159 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input}, 160 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output}, 161 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux}, 162 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer}, 163 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga}, 164 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv}, 165 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc}, 166 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac}, 167 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch}, 168 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre}, 169 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post}, 170 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in}, 171 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out}, 172 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in}, 173 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out}, 174 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link}, 175 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer}, 176 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler}, 177 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect}, 178 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen}, 179 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src}, 180 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc}, 181 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder}, 182 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder}, 183 }; 184 185 static int tplg_chan_get_reg(struct soc_tplg *tplg, 186 struct snd_soc_tplg_channel *chan, int map) 187 { 188 int i; 189 190 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 191 if (le32_to_cpu(chan[i].id) == map) 192 return le32_to_cpu(chan[i].reg); 193 } 194 195 return -EINVAL; 196 } 197 198 static int tplg_chan_get_shift(struct soc_tplg *tplg, 199 struct snd_soc_tplg_channel *chan, int map) 200 { 201 int i; 202 203 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 204 if (le32_to_cpu(chan[i].id) == map) 205 return le32_to_cpu(chan[i].shift); 206 } 207 208 return -EINVAL; 209 } 210 211 static int get_widget_id(int tplg_type) 212 { 213 int i; 214 215 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) { 216 if (tplg_type == dapm_map[i].uid) 217 return dapm_map[i].kid; 218 } 219 220 return -EINVAL; 221 } 222 223 static inline void soc_bind_err(struct soc_tplg *tplg, 224 struct snd_soc_tplg_ctl_hdr *hdr, int index) 225 { 226 dev_err(tplg->dev, 227 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n", 228 hdr->ops.get, hdr->ops.put, hdr->ops.info, index, 229 soc_tplg_get_offset(tplg)); 230 } 231 232 static inline void soc_control_err(struct soc_tplg *tplg, 233 struct snd_soc_tplg_ctl_hdr *hdr, const char *name) 234 { 235 dev_err(tplg->dev, 236 "ASoC: no complete control IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n", 237 name, hdr->ops.get, hdr->ops.put, hdr->ops.info, 238 soc_tplg_get_offset(tplg)); 239 } 240 241 /* pass vendor data to component driver for processing */ 242 static int soc_tplg_vendor_load(struct soc_tplg *tplg, 243 struct snd_soc_tplg_hdr *hdr) 244 { 245 int ret = 0; 246 247 if (tplg->ops && tplg->ops->vendor_load) 248 ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr); 249 else { 250 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n", 251 hdr->vendor_type); 252 return -EINVAL; 253 } 254 255 if (ret < 0) 256 dev_err(tplg->dev, 257 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n", 258 soc_tplg_get_hdr_offset(tplg), 259 soc_tplg_get_hdr_offset(tplg), 260 hdr->type, hdr->vendor_type); 261 return ret; 262 } 263 264 /* optionally pass new dynamic widget to component driver. This is mainly for 265 * external widgets where we can assign private data/ops */ 266 static int soc_tplg_widget_load(struct soc_tplg *tplg, 267 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 268 { 269 if (tplg->ops && tplg->ops->widget_load) 270 return tplg->ops->widget_load(tplg->comp, tplg->index, w, 271 tplg_w); 272 273 return 0; 274 } 275 276 /* optionally pass new dynamic widget to component driver. This is mainly for 277 * external widgets where we can assign private data/ops */ 278 static int soc_tplg_widget_ready(struct soc_tplg *tplg, 279 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 280 { 281 if (tplg->ops && tplg->ops->widget_ready) 282 return tplg->ops->widget_ready(tplg->comp, tplg->index, w, 283 tplg_w); 284 285 return 0; 286 } 287 288 /* pass DAI configurations to component driver for extra initialization */ 289 static int soc_tplg_dai_load(struct soc_tplg *tplg, 290 struct snd_soc_dai_driver *dai_drv, 291 struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai) 292 { 293 if (tplg->ops && tplg->ops->dai_load) 294 return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv, 295 pcm, dai); 296 297 return 0; 298 } 299 300 /* pass link configurations to component driver for extra initialization */ 301 static int soc_tplg_dai_link_load(struct soc_tplg *tplg, 302 struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg) 303 { 304 if (tplg->ops && tplg->ops->link_load) 305 return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg); 306 307 return 0; 308 } 309 310 /* tell the component driver that all firmware has been loaded in this request */ 311 static int soc_tplg_complete(struct soc_tplg *tplg) 312 { 313 if (tplg->ops && tplg->ops->complete) 314 return tplg->ops->complete(tplg->comp); 315 316 return 0; 317 } 318 319 /* add a dynamic kcontrol */ 320 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev, 321 const struct snd_kcontrol_new *control_new, const char *prefix, 322 void *data, struct snd_kcontrol **kcontrol) 323 { 324 int err; 325 326 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix); 327 if (*kcontrol == NULL) { 328 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n", 329 control_new->name); 330 return -ENOMEM; 331 } 332 333 err = snd_ctl_add(card, *kcontrol); 334 if (err < 0) { 335 dev_err(dev, "ASoC: Failed to add %s: %d\n", 336 control_new->name, err); 337 return err; 338 } 339 340 return 0; 341 } 342 343 /* add a dynamic kcontrol for component driver */ 344 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg, 345 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol) 346 { 347 struct snd_soc_component *comp = tplg->comp; 348 349 return soc_tplg_add_dcontrol(comp->card->snd_card, 350 tplg->dev, k, comp->name_prefix, comp, kcontrol); 351 } 352 353 /* remove kcontrol */ 354 static void soc_tplg_remove_kcontrol(struct snd_soc_component *comp, struct snd_soc_dobj *dobj, 355 int pass) 356 { 357 struct snd_card *card = comp->card->snd_card; 358 359 if (pass != SOC_TPLG_PASS_CONTROL) 360 return; 361 362 if (dobj->unload) 363 dobj->unload(comp, dobj); 364 365 snd_ctl_remove(card, dobj->control.kcontrol); 366 list_del(&dobj->list); 367 } 368 369 /* remove a route */ 370 static void soc_tplg_remove_route(struct snd_soc_component *comp, 371 struct snd_soc_dobj *dobj, int pass) 372 { 373 if (pass != SOC_TPLG_PASS_GRAPH) 374 return; 375 376 if (dobj->unload) 377 dobj->unload(comp, dobj); 378 379 list_del(&dobj->list); 380 } 381 382 /* remove a widget and it's kcontrols - routes must be removed first */ 383 static void soc_tplg_remove_widget(struct snd_soc_component *comp, 384 struct snd_soc_dobj *dobj, int pass) 385 { 386 struct snd_card *card = comp->card->snd_card; 387 struct snd_soc_dapm_widget *w = 388 container_of(dobj, struct snd_soc_dapm_widget, dobj); 389 int i; 390 391 if (pass != SOC_TPLG_PASS_WIDGET) 392 return; 393 394 if (dobj->unload) 395 dobj->unload(comp, dobj); 396 397 if (!w->kcontrols) 398 goto free_news; 399 400 for (i = 0; w->kcontrols && i < w->num_kcontrols; i++) 401 snd_ctl_remove(card, w->kcontrols[i]); 402 403 free_news: 404 405 list_del(&dobj->list); 406 407 /* widget w is freed by soc-dapm.c */ 408 } 409 410 /* remove DAI configurations */ 411 static void soc_tplg_remove_dai(struct snd_soc_component *comp, 412 struct snd_soc_dobj *dobj, int pass) 413 { 414 struct snd_soc_dai_driver *dai_drv = 415 container_of(dobj, struct snd_soc_dai_driver, dobj); 416 struct snd_soc_dai *dai, *_dai; 417 418 if (pass != SOC_TPLG_PASS_PCM_DAI) 419 return; 420 421 if (dobj->unload) 422 dobj->unload(comp, dobj); 423 424 for_each_component_dais_safe(comp, dai, _dai) 425 if (dai->driver == dai_drv) 426 snd_soc_unregister_dai(dai); 427 428 list_del(&dobj->list); 429 } 430 431 /* remove link configurations */ 432 static void soc_tplg_remove_link(struct snd_soc_component *comp, 433 struct snd_soc_dobj *dobj, int pass) 434 { 435 struct snd_soc_dai_link *link = 436 container_of(dobj, struct snd_soc_dai_link, dobj); 437 438 if (pass != SOC_TPLG_PASS_PCM_DAI) 439 return; 440 441 if (dobj->unload) 442 dobj->unload(comp, dobj); 443 444 list_del(&dobj->list); 445 snd_soc_remove_pcm_runtime(comp->card, 446 snd_soc_get_pcm_runtime(comp->card, link)); 447 } 448 449 /* unload dai link */ 450 static void remove_backend_link(struct snd_soc_component *comp, 451 struct snd_soc_dobj *dobj, int pass) 452 { 453 if (pass != SOC_TPLG_PASS_LINK) 454 return; 455 456 if (dobj->unload) 457 dobj->unload(comp, dobj); 458 459 /* 460 * We don't free the link here as what soc_tplg_remove_link() do since BE 461 * links are not allocated by topology. 462 * We however need to reset the dobj type to its initial values 463 */ 464 dobj->type = SND_SOC_DOBJ_NONE; 465 list_del(&dobj->list); 466 } 467 468 /* bind a kcontrol to it's IO handlers */ 469 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr, 470 struct snd_kcontrol_new *k, 471 const struct soc_tplg *tplg) 472 { 473 const struct snd_soc_tplg_kcontrol_ops *ops; 474 const struct snd_soc_tplg_bytes_ext_ops *ext_ops; 475 int num_ops, i; 476 477 if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES 478 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER 479 && (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ 480 || k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 481 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 482 struct soc_bytes_ext *sbe; 483 struct snd_soc_tplg_bytes_control *be; 484 485 sbe = (struct soc_bytes_ext *)k->private_value; 486 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr); 487 488 /* TLV bytes controls need standard kcontrol info handler, 489 * TLV callback and extended put/get handlers. 490 */ 491 k->info = snd_soc_bytes_info_ext; 492 k->tlv.c = snd_soc_bytes_tlv_callback; 493 494 /* 495 * When a topology-based implementation abuses the 496 * control interface and uses bytes_ext controls of 497 * more than 512 bytes, we need to disable the size 498 * checks, otherwise accesses to such controls will 499 * return an -EINVAL error and prevent the card from 500 * being configured. 501 */ 502 if (sbe->max > 512) 503 k->access |= SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK; 504 505 ext_ops = tplg->bytes_ext_ops; 506 num_ops = tplg->bytes_ext_ops_count; 507 for (i = 0; i < num_ops; i++) { 508 if (!sbe->put && 509 ext_ops[i].id == le32_to_cpu(be->ext_ops.put)) 510 sbe->put = ext_ops[i].put; 511 if (!sbe->get && 512 ext_ops[i].id == le32_to_cpu(be->ext_ops.get)) 513 sbe->get = ext_ops[i].get; 514 } 515 516 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) && !sbe->get) 517 return -EINVAL; 518 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) && !sbe->put) 519 return -EINVAL; 520 return 0; 521 } 522 523 /* try and map vendor specific kcontrol handlers first */ 524 ops = tplg->io_ops; 525 num_ops = tplg->io_ops_count; 526 for (i = 0; i < num_ops; i++) { 527 528 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 529 k->put = ops[i].put; 530 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 531 k->get = ops[i].get; 532 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 533 k->info = ops[i].info; 534 } 535 536 /* vendor specific handlers found ? */ 537 if (k->put && k->get && k->info) 538 return 0; 539 540 /* none found so try standard kcontrol handlers */ 541 ops = io_ops; 542 num_ops = ARRAY_SIZE(io_ops); 543 for (i = 0; i < num_ops; i++) { 544 545 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 546 k->put = ops[i].put; 547 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 548 k->get = ops[i].get; 549 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 550 k->info = ops[i].info; 551 } 552 553 /* standard handlers found ? */ 554 if (k->put && k->get && k->info) 555 return 0; 556 557 /* nothing to bind */ 558 return -EINVAL; 559 } 560 561 /* bind a widgets to it's evnt handlers */ 562 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w, 563 const struct snd_soc_tplg_widget_events *events, 564 int num_events, u16 event_type) 565 { 566 int i; 567 568 w->event = NULL; 569 570 for (i = 0; i < num_events; i++) { 571 if (event_type == events[i].type) { 572 573 /* found - so assign event */ 574 w->event = events[i].event_handler; 575 return 0; 576 } 577 } 578 579 /* not found */ 580 return -EINVAL; 581 } 582 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event); 583 584 /* optionally pass new dynamic kcontrol to component driver. */ 585 static int soc_tplg_control_load(struct soc_tplg *tplg, 586 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr) 587 { 588 int ret = 0; 589 590 if (tplg->ops && tplg->ops->control_load) 591 ret = tplg->ops->control_load(tplg->comp, tplg->index, k, hdr); 592 593 if (ret) 594 dev_err(tplg->dev, "ASoC: failed to init %s\n", hdr->name); 595 596 return ret; 597 } 598 599 600 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg, 601 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale) 602 { 603 unsigned int item_len = 2 * sizeof(unsigned int); 604 unsigned int *p; 605 606 p = devm_kzalloc(tplg->dev, item_len + 2 * sizeof(unsigned int), GFP_KERNEL); 607 if (!p) 608 return -ENOMEM; 609 610 p[0] = SNDRV_CTL_TLVT_DB_SCALE; 611 p[1] = item_len; 612 p[2] = le32_to_cpu(scale->min); 613 p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK) 614 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0); 615 616 kc->tlv.p = (void *)p; 617 return 0; 618 } 619 620 static int soc_tplg_create_tlv(struct soc_tplg *tplg, 621 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc) 622 { 623 struct snd_soc_tplg_ctl_tlv *tplg_tlv; 624 u32 access = le32_to_cpu(tc->access); 625 626 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)) 627 return 0; 628 629 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) { 630 tplg_tlv = &tc->tlv; 631 switch (le32_to_cpu(tplg_tlv->type)) { 632 case SNDRV_CTL_TLVT_DB_SCALE: 633 return soc_tplg_create_tlv_db_scale(tplg, kc, 634 &tplg_tlv->scale); 635 636 /* TODO: add support for other TLV types */ 637 default: 638 dev_dbg(tplg->dev, "Unsupported TLV type %d\n", 639 tplg_tlv->type); 640 return -EINVAL; 641 } 642 } 643 644 return 0; 645 } 646 647 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, size_t size) 648 { 649 struct snd_soc_tplg_bytes_control *be; 650 struct soc_bytes_ext *sbe; 651 struct snd_kcontrol_new kc; 652 int ret = 0; 653 654 if (soc_tplg_check_elem_count(tplg, 655 sizeof(struct snd_soc_tplg_bytes_control), 656 1, size, "mixer bytes")) 657 return -EINVAL; 658 659 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 660 661 /* validate kcontrol */ 662 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 663 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 664 return -EINVAL; 665 666 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL); 667 if (sbe == NULL) 668 return -ENOMEM; 669 670 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 671 le32_to_cpu(be->priv.size)); 672 673 dev_dbg(tplg->dev, 674 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 675 be->hdr.name, be->hdr.access); 676 677 memset(&kc, 0, sizeof(kc)); 678 kc.name = be->hdr.name; 679 kc.private_value = (long)sbe; 680 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 681 kc.access = le32_to_cpu(be->hdr.access); 682 683 sbe->max = le32_to_cpu(be->max); 684 sbe->dobj.type = SND_SOC_DOBJ_BYTES; 685 if (tplg->ops) 686 sbe->dobj.unload = tplg->ops->control_unload; 687 INIT_LIST_HEAD(&sbe->dobj.list); 688 689 /* map io handlers */ 690 ret = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg); 691 if (ret) { 692 soc_control_err(tplg, &be->hdr, be->hdr.name); 693 goto err; 694 } 695 696 /* pass control to driver for optional further init */ 697 ret = soc_tplg_control_load(tplg, &kc, &be->hdr); 698 if (ret < 0) 699 goto err; 700 701 /* register control here */ 702 ret = soc_tplg_add_kcontrol(tplg, &kc, &sbe->dobj.control.kcontrol); 703 if (ret < 0) 704 goto err; 705 706 list_add(&sbe->dobj.list, &tplg->comp->dobj_list); 707 708 err: 709 return ret; 710 } 711 712 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, size_t size) 713 { 714 struct snd_soc_tplg_mixer_control *mc; 715 struct soc_mixer_control *sm; 716 struct snd_kcontrol_new kc; 717 int ret = 0; 718 719 if (soc_tplg_check_elem_count(tplg, 720 sizeof(struct snd_soc_tplg_mixer_control), 721 1, size, "mixers")) 722 return -EINVAL; 723 724 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 725 726 /* validate kcontrol */ 727 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 728 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 729 return -EINVAL; 730 731 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL); 732 if (sm == NULL) 733 return -ENOMEM; 734 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 735 le32_to_cpu(mc->priv.size)); 736 737 dev_dbg(tplg->dev, 738 "ASoC: adding mixer kcontrol %s with access 0x%x\n", 739 mc->hdr.name, mc->hdr.access); 740 741 memset(&kc, 0, sizeof(kc)); 742 kc.name = mc->hdr.name; 743 kc.private_value = (long)sm; 744 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 745 kc.access = le32_to_cpu(mc->hdr.access); 746 747 /* we only support FL/FR channel mapping atm */ 748 sm->reg = tplg_chan_get_reg(tplg, mc->channel, SNDRV_CHMAP_FL); 749 sm->rreg = tplg_chan_get_reg(tplg, mc->channel, SNDRV_CHMAP_FR); 750 sm->shift = tplg_chan_get_shift(tplg, mc->channel, SNDRV_CHMAP_FL); 751 sm->rshift = tplg_chan_get_shift(tplg, mc->channel, SNDRV_CHMAP_FR); 752 753 sm->max = le32_to_cpu(mc->max); 754 sm->min = le32_to_cpu(mc->min); 755 sm->invert = le32_to_cpu(mc->invert); 756 sm->platform_max = le32_to_cpu(mc->platform_max); 757 sm->dobj.index = tplg->index; 758 sm->dobj.type = SND_SOC_DOBJ_MIXER; 759 if (tplg->ops) 760 sm->dobj.unload = tplg->ops->control_unload; 761 INIT_LIST_HEAD(&sm->dobj.list); 762 763 /* map io handlers */ 764 ret = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg); 765 if (ret) { 766 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 767 goto err; 768 } 769 770 /* create any TLV data */ 771 ret = soc_tplg_create_tlv(tplg, &kc, &mc->hdr); 772 if (ret < 0) { 773 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", mc->hdr.name); 774 goto err; 775 } 776 777 /* pass control to driver for optional further init */ 778 ret = soc_tplg_control_load(tplg, &kc, &mc->hdr); 779 if (ret < 0) 780 goto err; 781 782 /* register control here */ 783 ret = soc_tplg_add_kcontrol(tplg, &kc, &sm->dobj.control.kcontrol); 784 if (ret < 0) 785 goto err; 786 787 list_add(&sm->dobj.list, &tplg->comp->dobj_list); 788 789 err: 790 return ret; 791 } 792 793 static int soc_tplg_denum_create_texts(struct soc_tplg *tplg, struct soc_enum *se, 794 struct snd_soc_tplg_enum_control *ec) 795 { 796 int i, ret; 797 798 if (le32_to_cpu(ec->items) > ARRAY_SIZE(ec->texts)) 799 return -EINVAL; 800 801 se->dobj.control.dtexts = 802 devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL); 803 if (se->dobj.control.dtexts == NULL) 804 return -ENOMEM; 805 806 for (i = 0; i < le32_to_cpu(ec->items); i++) { 807 808 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 809 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 810 ret = -EINVAL; 811 goto err; 812 } 813 814 se->dobj.control.dtexts[i] = devm_kstrdup(tplg->dev, ec->texts[i], GFP_KERNEL); 815 if (!se->dobj.control.dtexts[i]) { 816 ret = -ENOMEM; 817 goto err; 818 } 819 } 820 821 se->items = le32_to_cpu(ec->items); 822 se->texts = (const char * const *)se->dobj.control.dtexts; 823 return 0; 824 825 err: 826 return ret; 827 } 828 829 static int soc_tplg_denum_create_values(struct soc_tplg *tplg, struct soc_enum *se, 830 struct snd_soc_tplg_enum_control *ec) 831 { 832 int i; 833 834 /* 835 * Following "if" checks if we have at most SND_SOC_TPLG_NUM_TEXTS 836 * values instead of using ARRAY_SIZE(ec->values) due to the fact that 837 * it is oversized for its purpose. Additionally it is done so because 838 * it is defined in UAPI header where it can't be easily changed. 839 */ 840 if (le32_to_cpu(ec->items) > SND_SOC_TPLG_NUM_TEXTS) 841 return -EINVAL; 842 843 se->dobj.control.dvalues = devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), 844 sizeof(*se->dobj.control.dvalues), 845 GFP_KERNEL); 846 if (!se->dobj.control.dvalues) 847 return -ENOMEM; 848 849 /* convert from little-endian */ 850 for (i = 0; i < le32_to_cpu(ec->items); i++) { 851 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]); 852 } 853 854 return 0; 855 } 856 857 static int soc_tplg_denum_create(struct soc_tplg *tplg, size_t size) 858 { 859 struct snd_soc_tplg_enum_control *ec; 860 struct soc_enum *se; 861 struct snd_kcontrol_new kc; 862 int ret = 0; 863 864 if (soc_tplg_check_elem_count(tplg, 865 sizeof(struct snd_soc_tplg_enum_control), 866 1, size, "enums")) 867 return -EINVAL; 868 869 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 870 871 /* validate kcontrol */ 872 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 873 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 874 return -EINVAL; 875 876 se = devm_kzalloc(tplg->dev, (sizeof(*se)), GFP_KERNEL); 877 if (se == NULL) 878 return -ENOMEM; 879 880 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 881 le32_to_cpu(ec->priv.size)); 882 883 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", 884 ec->hdr.name, ec->items); 885 886 memset(&kc, 0, sizeof(kc)); 887 kc.name = ec->hdr.name; 888 kc.private_value = (long)se; 889 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 890 kc.access = le32_to_cpu(ec->hdr.access); 891 892 se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 893 se->shift_l = tplg_chan_get_shift(tplg, ec->channel, 894 SNDRV_CHMAP_FL); 895 se->shift_r = tplg_chan_get_shift(tplg, ec->channel, 896 SNDRV_CHMAP_FL); 897 898 se->mask = le32_to_cpu(ec->mask); 899 se->dobj.index = tplg->index; 900 se->dobj.type = SND_SOC_DOBJ_ENUM; 901 if (tplg->ops) 902 se->dobj.unload = tplg->ops->control_unload; 903 INIT_LIST_HEAD(&se->dobj.list); 904 905 switch (le32_to_cpu(ec->hdr.ops.info)) { 906 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 907 case SND_SOC_TPLG_CTL_ENUM_VALUE: 908 ret = soc_tplg_denum_create_values(tplg, se, ec); 909 if (ret < 0) { 910 dev_err(tplg->dev, 911 "ASoC: could not create values for %s\n", 912 ec->hdr.name); 913 goto err; 914 } 915 fallthrough; 916 case SND_SOC_TPLG_CTL_ENUM: 917 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 918 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 919 ret = soc_tplg_denum_create_texts(tplg, se, ec); 920 if (ret < 0) { 921 dev_err(tplg->dev, 922 "ASoC: could not create texts for %s\n", 923 ec->hdr.name); 924 goto err; 925 } 926 break; 927 default: 928 ret = -EINVAL; 929 dev_err(tplg->dev, 930 "ASoC: invalid enum control type %d for %s\n", 931 ec->hdr.ops.info, ec->hdr.name); 932 goto err; 933 } 934 935 /* map io handlers */ 936 ret = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg); 937 if (ret) { 938 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 939 goto err; 940 } 941 942 /* pass control to driver for optional further init */ 943 ret = soc_tplg_control_load(tplg, &kc, &ec->hdr); 944 if (ret < 0) 945 goto err; 946 947 /* register control here */ 948 ret = soc_tplg_add_kcontrol(tplg, &kc, &se->dobj.control.kcontrol); 949 if (ret < 0) 950 goto err; 951 952 list_add(&se->dobj.list, &tplg->comp->dobj_list); 953 954 err: 955 return ret; 956 } 957 958 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 959 struct snd_soc_tplg_hdr *hdr) 960 { 961 int ret; 962 int i; 963 964 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 965 soc_tplg_get_offset(tplg)); 966 967 for (i = 0; i < le32_to_cpu(hdr->count); i++) { 968 struct snd_soc_tplg_ctl_hdr *control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 969 970 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) { 971 dev_err(tplg->dev, "ASoC: invalid control size\n"); 972 return -EINVAL; 973 } 974 975 switch (le32_to_cpu(control_hdr->ops.info)) { 976 case SND_SOC_TPLG_CTL_VOLSW: 977 case SND_SOC_TPLG_CTL_STROBE: 978 case SND_SOC_TPLG_CTL_VOLSW_SX: 979 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 980 case SND_SOC_TPLG_CTL_RANGE: 981 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 982 case SND_SOC_TPLG_DAPM_CTL_PIN: 983 ret = soc_tplg_dmixer_create(tplg, le32_to_cpu(hdr->payload_size)); 984 break; 985 case SND_SOC_TPLG_CTL_ENUM: 986 case SND_SOC_TPLG_CTL_ENUM_VALUE: 987 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 988 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 989 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 990 ret = soc_tplg_denum_create(tplg, le32_to_cpu(hdr->payload_size)); 991 break; 992 case SND_SOC_TPLG_CTL_BYTES: 993 ret = soc_tplg_dbytes_create(tplg, le32_to_cpu(hdr->payload_size)); 994 break; 995 default: 996 soc_bind_err(tplg, control_hdr, i); 997 return -EINVAL; 998 } 999 if (ret < 0) { 1000 dev_err(tplg->dev, "ASoC: invalid control\n"); 1001 return ret; 1002 } 1003 1004 } 1005 1006 return 0; 1007 } 1008 1009 /* optionally pass new dynamic kcontrol to component driver. */ 1010 static int soc_tplg_add_route(struct soc_tplg *tplg, 1011 struct snd_soc_dapm_route *route) 1012 { 1013 if (tplg->ops && tplg->ops->dapm_route_load) 1014 return tplg->ops->dapm_route_load(tplg->comp, tplg->index, 1015 route); 1016 1017 return 0; 1018 } 1019 1020 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1021 struct snd_soc_tplg_hdr *hdr) 1022 { 1023 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1024 const size_t maxlen = SNDRV_CTL_ELEM_ID_NAME_MAXLEN; 1025 struct snd_soc_tplg_dapm_graph_elem *elem; 1026 struct snd_soc_dapm_route *route; 1027 int count, i; 1028 int ret = 0; 1029 1030 count = le32_to_cpu(hdr->count); 1031 1032 if (soc_tplg_check_elem_count(tplg, 1033 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1034 count, le32_to_cpu(hdr->payload_size), "graph")) 1035 return -EINVAL; 1036 1037 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, 1038 hdr->index); 1039 1040 for (i = 0; i < count; i++) { 1041 route = devm_kzalloc(tplg->dev, sizeof(*route), GFP_KERNEL); 1042 if (!route) 1043 return -ENOMEM; 1044 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1045 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1046 1047 /* validate routes */ 1048 if ((strnlen(elem->source, maxlen) == maxlen) || 1049 (strnlen(elem->sink, maxlen) == maxlen) || 1050 (strnlen(elem->control, maxlen) == maxlen)) { 1051 ret = -EINVAL; 1052 break; 1053 } 1054 1055 route->source = devm_kstrdup(tplg->dev, elem->source, GFP_KERNEL); 1056 route->sink = devm_kstrdup(tplg->dev, elem->sink, GFP_KERNEL); 1057 if (!route->source || !route->sink) { 1058 ret = -ENOMEM; 1059 break; 1060 } 1061 1062 if (strnlen(elem->control, maxlen) != 0) { 1063 route->control = devm_kstrdup(tplg->dev, elem->control, GFP_KERNEL); 1064 if (!route->control) { 1065 ret = -ENOMEM; 1066 break; 1067 } 1068 } 1069 1070 /* add route dobj to dobj_list */ 1071 route->dobj.type = SND_SOC_DOBJ_GRAPH; 1072 if (tplg->ops) 1073 route->dobj.unload = tplg->ops->dapm_route_unload; 1074 route->dobj.index = tplg->index; 1075 list_add(&route->dobj.list, &tplg->comp->dobj_list); 1076 1077 ret = soc_tplg_add_route(tplg, route); 1078 if (ret < 0) { 1079 dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret); 1080 break; 1081 } 1082 1083 ret = snd_soc_dapm_add_routes(dapm, route, 1); 1084 if (ret) { 1085 if (!dapm->card->disable_route_checks) { 1086 dev_err(tplg->dev, "ASoC: dapm_add_routes failed: %d\n", ret); 1087 break; 1088 } 1089 dev_info(tplg->dev, 1090 "ASoC: disable_route_checks set, ignoring dapm_add_routes errors\n"); 1091 } 1092 } 1093 1094 return ret; 1095 } 1096 1097 static int soc_tplg_dapm_widget_dmixer_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1098 { 1099 struct soc_mixer_control *sm; 1100 struct snd_soc_tplg_mixer_control *mc; 1101 int err; 1102 1103 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1104 1105 /* validate kcontrol */ 1106 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1107 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1108 return -EINVAL; 1109 1110 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL); 1111 if (!sm) 1112 return -ENOMEM; 1113 1114 tplg->pos += sizeof(struct snd_soc_tplg_mixer_control) + 1115 le32_to_cpu(mc->priv.size); 1116 1117 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s\n", 1118 mc->hdr.name); 1119 1120 kc->private_value = (long)sm; 1121 kc->name = devm_kstrdup(tplg->dev, mc->hdr.name, GFP_KERNEL); 1122 if (!kc->name) 1123 return -ENOMEM; 1124 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1125 kc->access = le32_to_cpu(mc->hdr.access); 1126 1127 /* we only support FL/FR channel mapping atm */ 1128 sm->reg = tplg_chan_get_reg(tplg, mc->channel, 1129 SNDRV_CHMAP_FL); 1130 sm->rreg = tplg_chan_get_reg(tplg, mc->channel, 1131 SNDRV_CHMAP_FR); 1132 sm->shift = tplg_chan_get_shift(tplg, mc->channel, 1133 SNDRV_CHMAP_FL); 1134 sm->rshift = tplg_chan_get_shift(tplg, mc->channel, 1135 SNDRV_CHMAP_FR); 1136 1137 sm->max = le32_to_cpu(mc->max); 1138 sm->min = le32_to_cpu(mc->min); 1139 sm->invert = le32_to_cpu(mc->invert); 1140 sm->platform_max = le32_to_cpu(mc->platform_max); 1141 sm->dobj.index = tplg->index; 1142 INIT_LIST_HEAD(&sm->dobj.list); 1143 1144 /* map io handlers */ 1145 err = soc_tplg_kcontrol_bind_io(&mc->hdr, kc, tplg); 1146 if (err) { 1147 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1148 return err; 1149 } 1150 1151 /* create any TLV data */ 1152 err = soc_tplg_create_tlv(tplg, kc, &mc->hdr); 1153 if (err < 0) { 1154 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 1155 mc->hdr.name); 1156 return err; 1157 } 1158 1159 /* pass control to driver for optional further init */ 1160 err = soc_tplg_control_load(tplg, kc, &mc->hdr); 1161 if (err < 0) 1162 return err; 1163 1164 return 0; 1165 } 1166 1167 static int soc_tplg_dapm_widget_denum_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1168 { 1169 struct snd_soc_tplg_enum_control *ec; 1170 struct soc_enum *se; 1171 int err; 1172 1173 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1174 /* validate kcontrol */ 1175 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1176 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1177 return -EINVAL; 1178 1179 se = devm_kzalloc(tplg->dev, sizeof(*se), GFP_KERNEL); 1180 if (!se) 1181 return -ENOMEM; 1182 1183 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1184 le32_to_cpu(ec->priv.size)); 1185 1186 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1187 ec->hdr.name); 1188 1189 kc->private_value = (long)se; 1190 kc->name = devm_kstrdup(tplg->dev, ec->hdr.name, GFP_KERNEL); 1191 if (!kc->name) 1192 return -ENOMEM; 1193 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1194 kc->access = le32_to_cpu(ec->hdr.access); 1195 1196 /* we only support FL/FR channel mapping atm */ 1197 se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1198 se->shift_l = tplg_chan_get_shift(tplg, ec->channel, 1199 SNDRV_CHMAP_FL); 1200 se->shift_r = tplg_chan_get_shift(tplg, ec->channel, 1201 SNDRV_CHMAP_FR); 1202 1203 se->items = le32_to_cpu(ec->items); 1204 se->mask = le32_to_cpu(ec->mask); 1205 se->dobj.index = tplg->index; 1206 1207 switch (le32_to_cpu(ec->hdr.ops.info)) { 1208 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1209 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1210 err = soc_tplg_denum_create_values(tplg, se, ec); 1211 if (err < 0) { 1212 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1213 ec->hdr.name); 1214 return err; 1215 } 1216 fallthrough; 1217 case SND_SOC_TPLG_CTL_ENUM: 1218 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1219 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1220 err = soc_tplg_denum_create_texts(tplg, se, ec); 1221 if (err < 0) { 1222 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1223 ec->hdr.name); 1224 return err; 1225 } 1226 break; 1227 default: 1228 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1229 ec->hdr.ops.info, ec->hdr.name); 1230 return -EINVAL; 1231 } 1232 1233 /* map io handlers */ 1234 err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, tplg); 1235 if (err) { 1236 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1237 return err; 1238 } 1239 1240 /* pass control to driver for optional further init */ 1241 err = soc_tplg_control_load(tplg, kc, &ec->hdr); 1242 if (err < 0) 1243 return err; 1244 1245 return 0; 1246 } 1247 1248 static int soc_tplg_dapm_widget_dbytes_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1249 { 1250 struct snd_soc_tplg_bytes_control *be; 1251 struct soc_bytes_ext *sbe; 1252 int err; 1253 1254 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1255 1256 /* validate kcontrol */ 1257 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1258 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1259 return -EINVAL; 1260 1261 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL); 1262 if (!sbe) 1263 return -ENOMEM; 1264 1265 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1266 le32_to_cpu(be->priv.size)); 1267 1268 dev_dbg(tplg->dev, 1269 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1270 be->hdr.name, be->hdr.access); 1271 1272 kc->private_value = (long)sbe; 1273 kc->name = devm_kstrdup(tplg->dev, be->hdr.name, GFP_KERNEL); 1274 if (!kc->name) 1275 return -ENOMEM; 1276 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1277 kc->access = le32_to_cpu(be->hdr.access); 1278 1279 sbe->max = le32_to_cpu(be->max); 1280 INIT_LIST_HEAD(&sbe->dobj.list); 1281 1282 /* map standard io handlers and check for external handlers */ 1283 err = soc_tplg_kcontrol_bind_io(&be->hdr, kc, tplg); 1284 if (err) { 1285 soc_control_err(tplg, &be->hdr, be->hdr.name); 1286 return err; 1287 } 1288 1289 /* pass control to driver for optional further init */ 1290 err = soc_tplg_control_load(tplg, kc, &be->hdr); 1291 if (err < 0) 1292 return err; 1293 1294 return 0; 1295 } 1296 1297 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1298 struct snd_soc_tplg_dapm_widget *w) 1299 { 1300 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1301 struct snd_soc_dapm_widget template, *widget; 1302 struct snd_soc_tplg_ctl_hdr *control_hdr; 1303 struct snd_soc_card *card = tplg->comp->card; 1304 unsigned int *kcontrol_type = NULL; 1305 struct snd_kcontrol_new *kc; 1306 int mixer_count = 0; 1307 int bytes_count = 0; 1308 int enum_count = 0; 1309 int ret = 0; 1310 int i; 1311 1312 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1313 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1314 return -EINVAL; 1315 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1316 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1317 return -EINVAL; 1318 1319 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1320 w->name, w->id); 1321 1322 memset(&template, 0, sizeof(template)); 1323 1324 /* map user to kernel widget ID */ 1325 template.id = get_widget_id(le32_to_cpu(w->id)); 1326 if ((int)template.id < 0) 1327 return template.id; 1328 1329 /* strings are allocated here, but used and freed by the widget */ 1330 template.name = kstrdup(w->name, GFP_KERNEL); 1331 if (!template.name) 1332 return -ENOMEM; 1333 template.sname = kstrdup(w->sname, GFP_KERNEL); 1334 if (!template.sname) { 1335 ret = -ENOMEM; 1336 goto err; 1337 } 1338 template.reg = le32_to_cpu(w->reg); 1339 template.shift = le32_to_cpu(w->shift); 1340 template.mask = le32_to_cpu(w->mask); 1341 template.subseq = le32_to_cpu(w->subseq); 1342 template.on_val = w->invert ? 0 : 1; 1343 template.off_val = w->invert ? 1 : 0; 1344 template.ignore_suspend = le32_to_cpu(w->ignore_suspend); 1345 template.event_flags = le16_to_cpu(w->event_flags); 1346 template.dobj.index = tplg->index; 1347 1348 tplg->pos += 1349 (sizeof(struct snd_soc_tplg_dapm_widget) + 1350 le32_to_cpu(w->priv.size)); 1351 1352 if (w->num_kcontrols == 0) { 1353 template.num_kcontrols = 0; 1354 goto widget; 1355 } 1356 1357 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1358 kc = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(*kc), GFP_KERNEL); 1359 if (!kc) { 1360 ret = -ENOMEM; 1361 goto hdr_err; 1362 } 1363 1364 kcontrol_type = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(unsigned int), 1365 GFP_KERNEL); 1366 if (!kcontrol_type) { 1367 ret = -ENOMEM; 1368 goto hdr_err; 1369 } 1370 1371 for (i = 0; i < le32_to_cpu(w->num_kcontrols); i++) { 1372 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1373 switch (le32_to_cpu(control_hdr->ops.info)) { 1374 case SND_SOC_TPLG_CTL_VOLSW: 1375 case SND_SOC_TPLG_CTL_STROBE: 1376 case SND_SOC_TPLG_CTL_VOLSW_SX: 1377 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1378 case SND_SOC_TPLG_CTL_RANGE: 1379 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1380 /* volume mixer */ 1381 kc[i].index = mixer_count; 1382 kcontrol_type[i] = SND_SOC_TPLG_TYPE_MIXER; 1383 mixer_count++; 1384 ret = soc_tplg_dapm_widget_dmixer_create(tplg, &kc[i]); 1385 if (ret < 0) 1386 goto hdr_err; 1387 break; 1388 case SND_SOC_TPLG_CTL_ENUM: 1389 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1390 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1391 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1392 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1393 /* enumerated mixer */ 1394 kc[i].index = enum_count; 1395 kcontrol_type[i] = SND_SOC_TPLG_TYPE_ENUM; 1396 enum_count++; 1397 ret = soc_tplg_dapm_widget_denum_create(tplg, &kc[i]); 1398 if (ret < 0) 1399 goto hdr_err; 1400 break; 1401 case SND_SOC_TPLG_CTL_BYTES: 1402 /* bytes control */ 1403 kc[i].index = bytes_count; 1404 kcontrol_type[i] = SND_SOC_TPLG_TYPE_BYTES; 1405 bytes_count++; 1406 ret = soc_tplg_dapm_widget_dbytes_create(tplg, &kc[i]); 1407 if (ret < 0) 1408 goto hdr_err; 1409 break; 1410 default: 1411 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1412 control_hdr->ops.get, control_hdr->ops.put, 1413 le32_to_cpu(control_hdr->ops.info)); 1414 ret = -EINVAL; 1415 goto hdr_err; 1416 } 1417 } 1418 1419 template.kcontrol_news = kc; 1420 dev_dbg(tplg->dev, "ASoC: template %s with %d/%d/%d (mixer/enum/bytes) control\n", 1421 w->name, mixer_count, enum_count, bytes_count); 1422 1423 widget: 1424 ret = soc_tplg_widget_load(tplg, &template, w); 1425 if (ret < 0) 1426 goto hdr_err; 1427 1428 /* card dapm mutex is held by the core if we are loading topology 1429 * data during sound card init. */ 1430 if (snd_soc_card_is_instantiated(card)) 1431 widget = snd_soc_dapm_new_control(dapm, &template); 1432 else 1433 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1434 if (IS_ERR(widget)) { 1435 ret = PTR_ERR(widget); 1436 goto hdr_err; 1437 } 1438 1439 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1440 widget->dobj.widget.kcontrol_type = kcontrol_type; 1441 if (tplg->ops) 1442 widget->dobj.unload = tplg->ops->widget_unload; 1443 widget->dobj.index = tplg->index; 1444 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1445 1446 ret = soc_tplg_widget_ready(tplg, widget, w); 1447 if (ret < 0) 1448 goto ready_err; 1449 1450 kfree(template.sname); 1451 kfree(template.name); 1452 1453 return 0; 1454 1455 ready_err: 1456 soc_tplg_remove_widget(widget->dapm->component, &widget->dobj, SOC_TPLG_PASS_WIDGET); 1457 snd_soc_dapm_free_widget(widget); 1458 hdr_err: 1459 kfree(template.sname); 1460 err: 1461 kfree(template.name); 1462 return ret; 1463 } 1464 1465 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1466 struct snd_soc_tplg_hdr *hdr) 1467 { 1468 int count, i; 1469 1470 count = le32_to_cpu(hdr->count); 1471 1472 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1473 1474 for (i = 0; i < count; i++) { 1475 struct snd_soc_tplg_dapm_widget *widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1476 int ret; 1477 1478 /* 1479 * check if widget itself fits within topology file 1480 * use sizeof instead of widget->size, as we can't be sure 1481 * it is set properly yet (file may end before it is present) 1482 */ 1483 if (soc_tplg_get_offset(tplg) + sizeof(*widget) >= tplg->fw->size) { 1484 dev_err(tplg->dev, "ASoC: invalid widget data size\n"); 1485 return -EINVAL; 1486 } 1487 1488 /* check if widget has proper size */ 1489 if (le32_to_cpu(widget->size) != sizeof(*widget)) { 1490 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1491 return -EINVAL; 1492 } 1493 1494 /* check if widget private data fits within topology file */ 1495 if (soc_tplg_get_offset(tplg) + le32_to_cpu(widget->priv.size) >= tplg->fw->size) { 1496 dev_err(tplg->dev, "ASoC: invalid widget private data size\n"); 1497 return -EINVAL; 1498 } 1499 1500 ret = soc_tplg_dapm_widget_create(tplg, widget); 1501 if (ret < 0) { 1502 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1503 widget->name); 1504 return ret; 1505 } 1506 } 1507 1508 return 0; 1509 } 1510 1511 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1512 { 1513 struct snd_soc_card *card = tplg->comp->card; 1514 int ret; 1515 1516 /* Card might not have been registered at this point. 1517 * If so, just return success. 1518 */ 1519 if (!snd_soc_card_is_instantiated(card)) { 1520 dev_warn(tplg->dev, "ASoC: Parent card not yet available, widget card binding deferred\n"); 1521 return 0; 1522 } 1523 1524 ret = snd_soc_dapm_new_widgets(card); 1525 if (ret < 0) 1526 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", ret); 1527 1528 return ret; 1529 } 1530 1531 static int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream, 1532 struct snd_soc_tplg_stream_caps *caps) 1533 { 1534 stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL); 1535 if (!stream->stream_name) 1536 return -ENOMEM; 1537 1538 stream->channels_min = le32_to_cpu(caps->channels_min); 1539 stream->channels_max = le32_to_cpu(caps->channels_max); 1540 stream->rates = le32_to_cpu(caps->rates); 1541 stream->rate_min = le32_to_cpu(caps->rate_min); 1542 stream->rate_max = le32_to_cpu(caps->rate_max); 1543 stream->formats = le64_to_cpu(caps->formats); 1544 stream->sig_bits = le32_to_cpu(caps->sig_bits); 1545 1546 return 0; 1547 } 1548 1549 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1550 unsigned int flag_mask, unsigned int flags) 1551 { 1552 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1553 dai_drv->symmetric_rate = 1554 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1555 1556 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1557 dai_drv->symmetric_channels = 1558 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) ? 1559 1 : 0; 1560 1561 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1562 dai_drv->symmetric_sample_bits = 1563 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1564 1 : 0; 1565 } 1566 1567 static const struct snd_soc_dai_ops tplg_dai_ops = { 1568 .compress_new = snd_soc_new_compress, 1569 }; 1570 1571 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1572 struct snd_soc_tplg_pcm *pcm) 1573 { 1574 struct snd_soc_dai_driver *dai_drv; 1575 struct snd_soc_pcm_stream *stream; 1576 struct snd_soc_tplg_stream_caps *caps; 1577 struct snd_soc_dai *dai; 1578 struct snd_soc_dapm_context *dapm = 1579 snd_soc_component_get_dapm(tplg->comp); 1580 int ret; 1581 1582 dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1583 if (dai_drv == NULL) 1584 return -ENOMEM; 1585 1586 if (strlen(pcm->dai_name)) { 1587 dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1588 if (!dai_drv->name) { 1589 ret = -ENOMEM; 1590 goto err; 1591 } 1592 } 1593 dai_drv->id = le32_to_cpu(pcm->dai_id); 1594 1595 if (pcm->playback) { 1596 stream = &dai_drv->playback; 1597 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1598 ret = set_stream_info(tplg, stream, caps); 1599 if (ret < 0) 1600 goto err; 1601 } 1602 1603 if (pcm->capture) { 1604 stream = &dai_drv->capture; 1605 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1606 ret = set_stream_info(tplg, stream, caps); 1607 if (ret < 0) 1608 goto err; 1609 } 1610 1611 if (pcm->compress) 1612 dai_drv->ops = &tplg_dai_ops; 1613 1614 /* pass control to component driver for optional further init */ 1615 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1616 if (ret < 0) { 1617 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 1618 goto err; 1619 } 1620 1621 dai_drv->dobj.index = tplg->index; 1622 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1623 if (tplg->ops) 1624 dai_drv->dobj.unload = tplg->ops->dai_unload; 1625 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1626 1627 /* register the DAI to the component */ 1628 dai = snd_soc_register_dai(tplg->comp, dai_drv, false); 1629 if (!dai) 1630 return -ENOMEM; 1631 1632 /* Create the DAI widgets here */ 1633 ret = snd_soc_dapm_new_dai_widgets(dapm, dai); 1634 if (ret != 0) { 1635 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret); 1636 snd_soc_unregister_dai(dai); 1637 return ret; 1638 } 1639 1640 return 0; 1641 1642 err: 1643 return ret; 1644 } 1645 1646 static void set_link_flags(struct snd_soc_dai_link *link, 1647 unsigned int flag_mask, unsigned int flags) 1648 { 1649 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1650 link->symmetric_rate = 1651 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1652 1653 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1654 link->symmetric_channels = 1655 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) ? 1656 1 : 0; 1657 1658 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1659 link->symmetric_sample_bits = 1660 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1661 1 : 0; 1662 1663 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1664 link->ignore_suspend = 1665 (flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) ? 1666 1 : 0; 1667 } 1668 1669 /* create the FE DAI link */ 1670 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1671 struct snd_soc_tplg_pcm *pcm) 1672 { 1673 struct snd_soc_dai_link *link; 1674 struct snd_soc_dai_link_component *dlc; 1675 int ret; 1676 1677 /* link + cpu + codec + platform */ 1678 link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1679 if (link == NULL) 1680 return -ENOMEM; 1681 1682 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1683 1684 link->cpus = &dlc[0]; 1685 link->num_cpus = 1; 1686 1687 link->dobj.index = tplg->index; 1688 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1689 if (tplg->ops) 1690 link->dobj.unload = tplg->ops->link_unload; 1691 1692 if (strlen(pcm->pcm_name)) { 1693 link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1694 link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1695 if (!link->name || !link->stream_name) { 1696 ret = -ENOMEM; 1697 goto err; 1698 } 1699 } 1700 link->id = le32_to_cpu(pcm->pcm_id); 1701 1702 if (strlen(pcm->dai_name)) { 1703 link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1704 if (!link->cpus->dai_name) { 1705 ret = -ENOMEM; 1706 goto err; 1707 } 1708 } 1709 1710 /* 1711 * Many topology are assuming link has Codec / Platform, and 1712 * these might be overwritten at soc_tplg_dai_link_load(). 1713 * Don't use &snd_soc_dummy_dlc here. 1714 */ 1715 link->codecs = &dlc[1]; /* Don't use &snd_soc_dummy_dlc here */ 1716 link->codecs->name = "snd-soc-dummy"; 1717 link->codecs->dai_name = "snd-soc-dummy-dai"; 1718 link->num_codecs = 1; 1719 1720 link->platforms = &dlc[2]; /* Don't use &snd_soc_dummy_dlc here */ 1721 link->platforms->name = "snd-soc-dummy"; 1722 link->num_platforms = 1; 1723 1724 /* enable DPCM */ 1725 link->dynamic = 1; 1726 link->ignore_pmdown_time = 1; 1727 link->dpcm_playback = le32_to_cpu(pcm->playback); 1728 link->dpcm_capture = le32_to_cpu(pcm->capture); 1729 if (pcm->flag_mask) 1730 set_link_flags(link, 1731 le32_to_cpu(pcm->flag_mask), 1732 le32_to_cpu(pcm->flags)); 1733 1734 /* pass control to component driver for optional further init */ 1735 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1736 if (ret < 0) { 1737 dev_err(tplg->dev, "ASoC: FE link loading failed\n"); 1738 goto err; 1739 } 1740 1741 ret = snd_soc_add_pcm_runtimes(tplg->comp->card, link, 1); 1742 if (ret < 0) { 1743 if (ret != -EPROBE_DEFER) 1744 dev_err(tplg->dev, "ASoC: adding FE link failed\n"); 1745 goto err; 1746 } 1747 1748 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1749 1750 return 0; 1751 err: 1752 return ret; 1753 } 1754 1755 /* create a FE DAI and DAI link from the PCM object */ 1756 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1757 struct snd_soc_tplg_pcm *pcm) 1758 { 1759 int ret; 1760 1761 ret = soc_tplg_dai_create(tplg, pcm); 1762 if (ret < 0) 1763 return ret; 1764 1765 return soc_tplg_fe_link_create(tplg, pcm); 1766 } 1767 1768 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1769 struct snd_soc_tplg_hdr *hdr) 1770 { 1771 struct snd_soc_tplg_pcm *pcm; 1772 int count; 1773 int size; 1774 int i; 1775 int ret; 1776 1777 count = le32_to_cpu(hdr->count); 1778 1779 /* check the element size and count */ 1780 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1781 size = le32_to_cpu(pcm->size); 1782 if (size > sizeof(struct snd_soc_tplg_pcm)) { 1783 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1784 size); 1785 return -EINVAL; 1786 } 1787 1788 if (soc_tplg_check_elem_count(tplg, 1789 size, count, 1790 le32_to_cpu(hdr->payload_size), 1791 "PCM DAI")) 1792 return -EINVAL; 1793 1794 for (i = 0; i < count; i++) { 1795 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1796 size = le32_to_cpu(pcm->size); 1797 1798 /* check ABI version by size, create a new version of pcm 1799 * if abi not match. 1800 */ 1801 if (size != sizeof(*pcm)) 1802 return -EINVAL; 1803 1804 /* create the FE DAIs and DAI links */ 1805 ret = soc_tplg_pcm_create(tplg, pcm); 1806 if (ret < 0) 1807 return ret; 1808 1809 /* offset by version-specific struct size and 1810 * real priv data size 1811 */ 1812 tplg->pos += size + le32_to_cpu(pcm->priv.size); 1813 } 1814 1815 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1816 1817 return 0; 1818 } 1819 1820 /** 1821 * set_link_hw_format - Set the HW audio format of the physical DAI link. 1822 * @link: &snd_soc_dai_link which should be updated 1823 * @cfg: physical link configs. 1824 * 1825 * Topology context contains a list of supported HW formats (configs) and 1826 * a default format ID for the physical link. This function will use this 1827 * default ID to choose the HW format to set the link's DAI format for init. 1828 */ 1829 static void set_link_hw_format(struct snd_soc_dai_link *link, 1830 struct snd_soc_tplg_link_config *cfg) 1831 { 1832 struct snd_soc_tplg_hw_config *hw_config; 1833 unsigned char bclk_provider, fsync_provider; 1834 unsigned char invert_bclk, invert_fsync; 1835 int i; 1836 1837 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 1838 hw_config = &cfg->hw_config[i]; 1839 if (hw_config->id != cfg->default_hw_config_id) 1840 continue; 1841 1842 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 1843 SND_SOC_DAIFMT_FORMAT_MASK; 1844 1845 /* clock gating */ 1846 switch (hw_config->clock_gated) { 1847 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 1848 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 1849 break; 1850 1851 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 1852 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 1853 break; 1854 1855 default: 1856 /* ignore the value */ 1857 break; 1858 } 1859 1860 /* clock signal polarity */ 1861 invert_bclk = hw_config->invert_bclk; 1862 invert_fsync = hw_config->invert_fsync; 1863 if (!invert_bclk && !invert_fsync) 1864 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 1865 else if (!invert_bclk && invert_fsync) 1866 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 1867 else if (invert_bclk && !invert_fsync) 1868 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 1869 else 1870 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 1871 1872 /* clock masters */ 1873 bclk_provider = (hw_config->bclk_provider == 1874 SND_SOC_TPLG_BCLK_CP); 1875 fsync_provider = (hw_config->fsync_provider == 1876 SND_SOC_TPLG_FSYNC_CP); 1877 if (bclk_provider && fsync_provider) 1878 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 1879 else if (!bclk_provider && fsync_provider) 1880 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFP; 1881 else if (bclk_provider && !fsync_provider) 1882 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFC; 1883 else 1884 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC; 1885 } 1886 } 1887 1888 /** 1889 * snd_soc_find_dai_link - Find a DAI link 1890 * 1891 * @card: soc card 1892 * @id: DAI link ID to match 1893 * @name: DAI link name to match, optional 1894 * @stream_name: DAI link stream name to match, optional 1895 * 1896 * This function will search all existing DAI links of the soc card to 1897 * find the link of the same ID. Since DAI links may not have their 1898 * unique ID, so name and stream name should also match if being 1899 * specified. 1900 * 1901 * Return: pointer of DAI link, or NULL if not found. 1902 */ 1903 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, 1904 int id, const char *name, 1905 const char *stream_name) 1906 { 1907 struct snd_soc_pcm_runtime *rtd; 1908 1909 for_each_card_rtds(card, rtd) { 1910 struct snd_soc_dai_link *link = rtd->dai_link; 1911 1912 if (link->id != id) 1913 continue; 1914 1915 if (name && (!link->name || !strstr(link->name, name))) 1916 continue; 1917 1918 if (stream_name && (!link->stream_name || 1919 !strstr(link->stream_name, stream_name))) 1920 continue; 1921 1922 return link; 1923 } 1924 1925 return NULL; 1926 } 1927 1928 /* Find and configure an existing physical DAI link */ 1929 static int soc_tplg_link_config(struct soc_tplg *tplg, 1930 struct snd_soc_tplg_link_config *cfg) 1931 { 1932 struct snd_soc_dai_link *link; 1933 const char *name, *stream_name; 1934 size_t len; 1935 int ret; 1936 1937 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1938 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1939 return -EINVAL; 1940 else if (len) 1941 name = cfg->name; 1942 else 1943 name = NULL; 1944 1945 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1946 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1947 return -EINVAL; 1948 else if (len) 1949 stream_name = cfg->stream_name; 1950 else 1951 stream_name = NULL; 1952 1953 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 1954 name, stream_name); 1955 if (!link) { 1956 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 1957 name, cfg->id); 1958 return -EINVAL; 1959 } 1960 1961 /* hw format */ 1962 if (cfg->num_hw_configs) 1963 set_link_hw_format(link, cfg); 1964 1965 /* flags */ 1966 if (cfg->flag_mask) 1967 set_link_flags(link, 1968 le32_to_cpu(cfg->flag_mask), 1969 le32_to_cpu(cfg->flags)); 1970 1971 /* pass control to component driver for optional further init */ 1972 ret = soc_tplg_dai_link_load(tplg, link, cfg); 1973 if (ret < 0) { 1974 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 1975 return ret; 1976 } 1977 1978 /* for unloading it in snd_soc_tplg_component_remove */ 1979 link->dobj.index = tplg->index; 1980 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 1981 if (tplg->ops) 1982 link->dobj.unload = tplg->ops->link_unload; 1983 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1984 1985 return 0; 1986 } 1987 1988 1989 /* Load physical link config elements from the topology context */ 1990 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 1991 struct snd_soc_tplg_hdr *hdr) 1992 { 1993 struct snd_soc_tplg_link_config *link; 1994 int count; 1995 int size; 1996 int i, ret; 1997 1998 count = le32_to_cpu(hdr->count); 1999 2000 /* check the element size and count */ 2001 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2002 size = le32_to_cpu(link->size); 2003 if (size > sizeof(struct snd_soc_tplg_link_config)) { 2004 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2005 size); 2006 return -EINVAL; 2007 } 2008 2009 if (soc_tplg_check_elem_count(tplg, size, count, 2010 le32_to_cpu(hdr->payload_size), 2011 "physical link config")) 2012 return -EINVAL; 2013 2014 /* config physical DAI links */ 2015 for (i = 0; i < count; i++) { 2016 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2017 size = le32_to_cpu(link->size); 2018 if (size != sizeof(*link)) 2019 return -EINVAL; 2020 2021 ret = soc_tplg_link_config(tplg, link); 2022 if (ret < 0) 2023 return ret; 2024 2025 /* offset by version-specific struct size and 2026 * real priv data size 2027 */ 2028 tplg->pos += size + le32_to_cpu(link->priv.size); 2029 } 2030 2031 return 0; 2032 } 2033 2034 /** 2035 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2036 * @tplg: topology context 2037 * @d: physical DAI configs. 2038 * 2039 * The physical dai should already be registered by the platform driver. 2040 * The platform driver should specify the DAI name and ID for matching. 2041 */ 2042 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2043 struct snd_soc_tplg_dai *d) 2044 { 2045 struct snd_soc_dai_link_component dai_component; 2046 struct snd_soc_dai *dai; 2047 struct snd_soc_dai_driver *dai_drv; 2048 struct snd_soc_pcm_stream *stream; 2049 struct snd_soc_tplg_stream_caps *caps; 2050 int ret; 2051 2052 memset(&dai_component, 0, sizeof(dai_component)); 2053 2054 dai_component.dai_name = d->dai_name; 2055 dai = snd_soc_find_dai(&dai_component); 2056 if (!dai) { 2057 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2058 d->dai_name); 2059 return -EINVAL; 2060 } 2061 2062 if (le32_to_cpu(d->dai_id) != dai->id) { 2063 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2064 d->dai_name); 2065 return -EINVAL; 2066 } 2067 2068 dai_drv = dai->driver; 2069 if (!dai_drv) 2070 return -EINVAL; 2071 2072 if (d->playback) { 2073 stream = &dai_drv->playback; 2074 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2075 ret = set_stream_info(tplg, stream, caps); 2076 if (ret < 0) 2077 goto err; 2078 } 2079 2080 if (d->capture) { 2081 stream = &dai_drv->capture; 2082 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2083 ret = set_stream_info(tplg, stream, caps); 2084 if (ret < 0) 2085 goto err; 2086 } 2087 2088 if (d->flag_mask) 2089 set_dai_flags(dai_drv, 2090 le32_to_cpu(d->flag_mask), 2091 le32_to_cpu(d->flags)); 2092 2093 /* pass control to component driver for optional further init */ 2094 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2095 if (ret < 0) { 2096 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 2097 goto err; 2098 } 2099 2100 return 0; 2101 2102 err: 2103 return ret; 2104 } 2105 2106 /* load physical DAI elements */ 2107 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2108 struct snd_soc_tplg_hdr *hdr) 2109 { 2110 int count; 2111 int i; 2112 2113 count = le32_to_cpu(hdr->count); 2114 2115 /* config the existing BE DAIs */ 2116 for (i = 0; i < count; i++) { 2117 struct snd_soc_tplg_dai *dai = (struct snd_soc_tplg_dai *)tplg->pos; 2118 int ret; 2119 2120 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 2121 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2122 return -EINVAL; 2123 } 2124 2125 ret = soc_tplg_dai_config(tplg, dai); 2126 if (ret < 0) { 2127 dev_err(tplg->dev, "ASoC: failed to configure DAI\n"); 2128 return ret; 2129 } 2130 2131 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 2132 } 2133 2134 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2135 return 0; 2136 } 2137 2138 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2139 struct snd_soc_tplg_hdr *hdr) 2140 { 2141 struct snd_soc_tplg_manifest *manifest; 2142 int ret = 0; 2143 2144 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2145 2146 /* check ABI version by size, create a new manifest if abi not match */ 2147 if (le32_to_cpu(manifest->size) != sizeof(*manifest)) 2148 return -EINVAL; 2149 2150 /* pass control to component driver for optional further init */ 2151 if (tplg->ops && tplg->ops->manifest) 2152 ret = tplg->ops->manifest(tplg->comp, tplg->index, manifest); 2153 2154 return ret; 2155 } 2156 2157 /* validate header magic, size and type */ 2158 static int soc_tplg_valid_header(struct soc_tplg *tplg, 2159 struct snd_soc_tplg_hdr *hdr) 2160 { 2161 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 2162 dev_err(tplg->dev, 2163 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2164 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2165 tplg->fw->size); 2166 return -EINVAL; 2167 } 2168 2169 if (soc_tplg_get_hdr_offset(tplg) + le32_to_cpu(hdr->payload_size) >= tplg->fw->size) { 2170 dev_err(tplg->dev, 2171 "ASoC: invalid header of type %d at offset %ld payload_size %d\n", 2172 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2173 hdr->payload_size); 2174 return -EINVAL; 2175 } 2176 2177 /* big endian firmware objects not supported atm */ 2178 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) { 2179 dev_err(tplg->dev, 2180 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2181 tplg->pass, hdr->magic, 2182 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2183 return -EINVAL; 2184 } 2185 2186 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2187 dev_err(tplg->dev, 2188 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2189 tplg->pass, hdr->magic, 2190 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2191 return -EINVAL; 2192 } 2193 2194 /* Support ABI from version 4 */ 2195 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2196 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2197 dev_err(tplg->dev, 2198 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2199 tplg->pass, hdr->abi, 2200 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2201 tplg->fw->size); 2202 return -EINVAL; 2203 } 2204 2205 if (hdr->payload_size == 0) { 2206 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2207 soc_tplg_get_hdr_offset(tplg)); 2208 return -EINVAL; 2209 } 2210 2211 return 0; 2212 } 2213 2214 /* check header type and call appropriate handler */ 2215 static int soc_tplg_load_header(struct soc_tplg *tplg, 2216 struct snd_soc_tplg_hdr *hdr) 2217 { 2218 int (*elem_load)(struct soc_tplg *tplg, 2219 struct snd_soc_tplg_hdr *hdr); 2220 unsigned int hdr_pass; 2221 2222 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2223 2224 tplg->index = le32_to_cpu(hdr->index); 2225 2226 switch (le32_to_cpu(hdr->type)) { 2227 case SND_SOC_TPLG_TYPE_MIXER: 2228 case SND_SOC_TPLG_TYPE_ENUM: 2229 case SND_SOC_TPLG_TYPE_BYTES: 2230 hdr_pass = SOC_TPLG_PASS_CONTROL; 2231 elem_load = soc_tplg_kcontrol_elems_load; 2232 break; 2233 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2234 hdr_pass = SOC_TPLG_PASS_GRAPH; 2235 elem_load = soc_tplg_dapm_graph_elems_load; 2236 break; 2237 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2238 hdr_pass = SOC_TPLG_PASS_WIDGET; 2239 elem_load = soc_tplg_dapm_widget_elems_load; 2240 break; 2241 case SND_SOC_TPLG_TYPE_PCM: 2242 hdr_pass = SOC_TPLG_PASS_PCM_DAI; 2243 elem_load = soc_tplg_pcm_elems_load; 2244 break; 2245 case SND_SOC_TPLG_TYPE_DAI: 2246 hdr_pass = SOC_TPLG_PASS_BE_DAI; 2247 elem_load = soc_tplg_dai_elems_load; 2248 break; 2249 case SND_SOC_TPLG_TYPE_DAI_LINK: 2250 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2251 /* physical link configurations */ 2252 hdr_pass = SOC_TPLG_PASS_LINK; 2253 elem_load = soc_tplg_link_elems_load; 2254 break; 2255 case SND_SOC_TPLG_TYPE_MANIFEST: 2256 hdr_pass = SOC_TPLG_PASS_MANIFEST; 2257 elem_load = soc_tplg_manifest_load; 2258 break; 2259 default: 2260 /* bespoke vendor data object */ 2261 hdr_pass = SOC_TPLG_PASS_VENDOR; 2262 elem_load = soc_tplg_vendor_load; 2263 break; 2264 } 2265 2266 if (tplg->pass == hdr_pass) { 2267 dev_dbg(tplg->dev, 2268 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2269 hdr->payload_size, hdr->type, hdr->version, 2270 hdr->vendor_type, tplg->pass); 2271 return elem_load(tplg, hdr); 2272 } 2273 2274 return 0; 2275 } 2276 2277 /* process the topology file headers */ 2278 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2279 { 2280 int ret; 2281 2282 /* process the header types from start to end */ 2283 for (tplg->pass = SOC_TPLG_PASS_START; tplg->pass <= SOC_TPLG_PASS_END; tplg->pass++) { 2284 struct snd_soc_tplg_hdr *hdr; 2285 2286 tplg->hdr_pos = tplg->fw->data; 2287 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2288 2289 while (!soc_tplg_is_eof(tplg)) { 2290 2291 /* make sure header is valid before loading */ 2292 ret = soc_tplg_valid_header(tplg, hdr); 2293 if (ret < 0) 2294 return ret; 2295 2296 /* load the header object */ 2297 ret = soc_tplg_load_header(tplg, hdr); 2298 if (ret < 0) { 2299 if (ret != -EPROBE_DEFER) { 2300 dev_err(tplg->dev, 2301 "ASoC: topology: could not load header: %d\n", 2302 ret); 2303 } 2304 return ret; 2305 } 2306 2307 /* goto next header */ 2308 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2309 sizeof(struct snd_soc_tplg_hdr); 2310 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2311 } 2312 2313 } 2314 2315 /* signal DAPM we are complete */ 2316 ret = soc_tplg_dapm_complete(tplg); 2317 2318 return ret; 2319 } 2320 2321 static int soc_tplg_load(struct soc_tplg *tplg) 2322 { 2323 int ret; 2324 2325 ret = soc_tplg_process_headers(tplg); 2326 if (ret == 0) 2327 return soc_tplg_complete(tplg); 2328 2329 return ret; 2330 } 2331 2332 /* load audio component topology from "firmware" file */ 2333 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2334 struct snd_soc_tplg_ops *ops, const struct firmware *fw) 2335 { 2336 struct soc_tplg tplg; 2337 int ret; 2338 2339 /* 2340 * check if we have sane parameters: 2341 * comp - needs to exist to keep and reference data while parsing 2342 * comp->card - used for setting card related parameters 2343 * comp->card->dev - used for resource management and prints 2344 * fw - we need it, as it is the very thing we parse 2345 */ 2346 if (!comp || !comp->card || !comp->card->dev || !fw) 2347 return -EINVAL; 2348 2349 /* setup parsing context */ 2350 memset(&tplg, 0, sizeof(tplg)); 2351 tplg.fw = fw; 2352 tplg.dev = comp->card->dev; 2353 tplg.comp = comp; 2354 if (ops) { 2355 tplg.ops = ops; 2356 tplg.io_ops = ops->io_ops; 2357 tplg.io_ops_count = ops->io_ops_count; 2358 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2359 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2360 } 2361 2362 ret = soc_tplg_load(&tplg); 2363 /* free the created components if fail to load topology */ 2364 if (ret) 2365 snd_soc_tplg_component_remove(comp); 2366 2367 return ret; 2368 } 2369 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2370 2371 /* remove dynamic controls from the component driver */ 2372 int snd_soc_tplg_component_remove(struct snd_soc_component *comp) 2373 { 2374 struct snd_soc_dobj *dobj, *next_dobj; 2375 int pass; 2376 2377 /* process the header types from end to start */ 2378 for (pass = SOC_TPLG_PASS_END; pass >= SOC_TPLG_PASS_START; pass--) { 2379 2380 /* remove mixer controls */ 2381 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2382 list) { 2383 2384 switch (dobj->type) { 2385 case SND_SOC_DOBJ_BYTES: 2386 case SND_SOC_DOBJ_ENUM: 2387 case SND_SOC_DOBJ_MIXER: 2388 soc_tplg_remove_kcontrol(comp, dobj, pass); 2389 break; 2390 case SND_SOC_DOBJ_GRAPH: 2391 soc_tplg_remove_route(comp, dobj, pass); 2392 break; 2393 case SND_SOC_DOBJ_WIDGET: 2394 soc_tplg_remove_widget(comp, dobj, pass); 2395 break; 2396 case SND_SOC_DOBJ_PCM: 2397 soc_tplg_remove_dai(comp, dobj, pass); 2398 break; 2399 case SND_SOC_DOBJ_DAI_LINK: 2400 soc_tplg_remove_link(comp, dobj, pass); 2401 break; 2402 case SND_SOC_DOBJ_BACKEND_LINK: 2403 /* 2404 * call link_unload ops if extra 2405 * deinitialization is needed. 2406 */ 2407 remove_backend_link(comp, dobj, pass); 2408 break; 2409 default: 2410 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2411 dobj->type); 2412 break; 2413 } 2414 } 2415 } 2416 2417 /* let caller know if FW can be freed when no objects are left */ 2418 return !list_empty(&comp->dobj_list); 2419 } 2420 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2421