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 struct snd_soc_tplg_dapm_graph_elem *elem; 1025 struct snd_soc_dapm_route *route; 1026 int count, i; 1027 int ret = 0; 1028 1029 count = le32_to_cpu(hdr->count); 1030 1031 if (soc_tplg_check_elem_count(tplg, 1032 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1033 count, le32_to_cpu(hdr->payload_size), "graph")) 1034 return -EINVAL; 1035 1036 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, 1037 hdr->index); 1038 1039 for (i = 0; i < count; i++) { 1040 route = devm_kzalloc(tplg->dev, sizeof(*route), GFP_KERNEL); 1041 if (!route) 1042 return -ENOMEM; 1043 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1044 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1045 1046 /* validate routes */ 1047 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1048 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1049 ret = -EINVAL; 1050 break; 1051 } 1052 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1053 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1054 ret = -EINVAL; 1055 break; 1056 } 1057 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1058 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1059 ret = -EINVAL; 1060 break; 1061 } 1062 1063 route->source = elem->source; 1064 route->sink = elem->sink; 1065 1066 /* set to NULL atm for tplg users */ 1067 route->connected = NULL; 1068 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0) 1069 route->control = NULL; 1070 else 1071 route->control = elem->control; 1072 1073 /* add route dobj to dobj_list */ 1074 route->dobj.type = SND_SOC_DOBJ_GRAPH; 1075 if (tplg->ops) 1076 route->dobj.unload = tplg->ops->dapm_route_unload; 1077 route->dobj.index = tplg->index; 1078 list_add(&route->dobj.list, &tplg->comp->dobj_list); 1079 1080 ret = soc_tplg_add_route(tplg, route); 1081 if (ret < 0) { 1082 dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret); 1083 break; 1084 } 1085 1086 ret = snd_soc_dapm_add_routes(dapm, route, 1); 1087 if (ret) { 1088 if (!dapm->card->disable_route_checks) { 1089 dev_err(tplg->dev, "ASoC: dapm_add_routes failed: %d\n", ret); 1090 break; 1091 } 1092 dev_info(tplg->dev, 1093 "ASoC: disable_route_checks set, ignoring dapm_add_routes errors\n"); 1094 } 1095 } 1096 1097 return ret; 1098 } 1099 1100 static int soc_tplg_dapm_widget_dmixer_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1101 { 1102 struct soc_mixer_control *sm; 1103 struct snd_soc_tplg_mixer_control *mc; 1104 int err; 1105 1106 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1107 1108 /* validate kcontrol */ 1109 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1110 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1111 return -EINVAL; 1112 1113 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL); 1114 if (!sm) 1115 return -ENOMEM; 1116 1117 tplg->pos += sizeof(struct snd_soc_tplg_mixer_control) + 1118 le32_to_cpu(mc->priv.size); 1119 1120 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s\n", 1121 mc->hdr.name); 1122 1123 kc->private_value = (long)sm; 1124 kc->name = devm_kstrdup(tplg->dev, mc->hdr.name, GFP_KERNEL); 1125 if (!kc->name) 1126 return -ENOMEM; 1127 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1128 kc->access = le32_to_cpu(mc->hdr.access); 1129 1130 /* we only support FL/FR channel mapping atm */ 1131 sm->reg = tplg_chan_get_reg(tplg, mc->channel, 1132 SNDRV_CHMAP_FL); 1133 sm->rreg = tplg_chan_get_reg(tplg, mc->channel, 1134 SNDRV_CHMAP_FR); 1135 sm->shift = tplg_chan_get_shift(tplg, mc->channel, 1136 SNDRV_CHMAP_FL); 1137 sm->rshift = tplg_chan_get_shift(tplg, mc->channel, 1138 SNDRV_CHMAP_FR); 1139 1140 sm->max = le32_to_cpu(mc->max); 1141 sm->min = le32_to_cpu(mc->min); 1142 sm->invert = le32_to_cpu(mc->invert); 1143 sm->platform_max = le32_to_cpu(mc->platform_max); 1144 sm->dobj.index = tplg->index; 1145 INIT_LIST_HEAD(&sm->dobj.list); 1146 1147 /* map io handlers */ 1148 err = soc_tplg_kcontrol_bind_io(&mc->hdr, kc, tplg); 1149 if (err) { 1150 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1151 return err; 1152 } 1153 1154 /* create any TLV data */ 1155 err = soc_tplg_create_tlv(tplg, kc, &mc->hdr); 1156 if (err < 0) { 1157 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 1158 mc->hdr.name); 1159 return err; 1160 } 1161 1162 /* pass control to driver for optional further init */ 1163 err = soc_tplg_control_load(tplg, kc, &mc->hdr); 1164 if (err < 0) 1165 return err; 1166 1167 return 0; 1168 } 1169 1170 static int soc_tplg_dapm_widget_denum_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1171 { 1172 struct snd_soc_tplg_enum_control *ec; 1173 struct soc_enum *se; 1174 int err; 1175 1176 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1177 /* validate kcontrol */ 1178 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1179 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1180 return -EINVAL; 1181 1182 se = devm_kzalloc(tplg->dev, sizeof(*se), GFP_KERNEL); 1183 if (!se) 1184 return -ENOMEM; 1185 1186 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1187 le32_to_cpu(ec->priv.size)); 1188 1189 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1190 ec->hdr.name); 1191 1192 kc->private_value = (long)se; 1193 kc->name = devm_kstrdup(tplg->dev, ec->hdr.name, GFP_KERNEL); 1194 if (!kc->name) 1195 return -ENOMEM; 1196 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1197 kc->access = le32_to_cpu(ec->hdr.access); 1198 1199 /* we only support FL/FR channel mapping atm */ 1200 se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1201 se->shift_l = tplg_chan_get_shift(tplg, ec->channel, 1202 SNDRV_CHMAP_FL); 1203 se->shift_r = tplg_chan_get_shift(tplg, ec->channel, 1204 SNDRV_CHMAP_FR); 1205 1206 se->items = le32_to_cpu(ec->items); 1207 se->mask = le32_to_cpu(ec->mask); 1208 se->dobj.index = tplg->index; 1209 1210 switch (le32_to_cpu(ec->hdr.ops.info)) { 1211 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1212 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1213 err = soc_tplg_denum_create_values(tplg, se, ec); 1214 if (err < 0) { 1215 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1216 ec->hdr.name); 1217 return err; 1218 } 1219 fallthrough; 1220 case SND_SOC_TPLG_CTL_ENUM: 1221 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1222 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1223 err = soc_tplg_denum_create_texts(tplg, se, ec); 1224 if (err < 0) { 1225 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1226 ec->hdr.name); 1227 return err; 1228 } 1229 break; 1230 default: 1231 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1232 ec->hdr.ops.info, ec->hdr.name); 1233 return -EINVAL; 1234 } 1235 1236 /* map io handlers */ 1237 err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, tplg); 1238 if (err) { 1239 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1240 return err; 1241 } 1242 1243 /* pass control to driver for optional further init */ 1244 err = soc_tplg_control_load(tplg, kc, &ec->hdr); 1245 if (err < 0) 1246 return err; 1247 1248 return 0; 1249 } 1250 1251 static int soc_tplg_dapm_widget_dbytes_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1252 { 1253 struct snd_soc_tplg_bytes_control *be; 1254 struct soc_bytes_ext *sbe; 1255 int err; 1256 1257 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1258 1259 /* validate kcontrol */ 1260 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1261 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1262 return -EINVAL; 1263 1264 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL); 1265 if (!sbe) 1266 return -ENOMEM; 1267 1268 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1269 le32_to_cpu(be->priv.size)); 1270 1271 dev_dbg(tplg->dev, 1272 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1273 be->hdr.name, be->hdr.access); 1274 1275 kc->private_value = (long)sbe; 1276 kc->name = devm_kstrdup(tplg->dev, be->hdr.name, GFP_KERNEL); 1277 if (!kc->name) 1278 return -ENOMEM; 1279 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1280 kc->access = le32_to_cpu(be->hdr.access); 1281 1282 sbe->max = le32_to_cpu(be->max); 1283 INIT_LIST_HEAD(&sbe->dobj.list); 1284 1285 /* map standard io handlers and check for external handlers */ 1286 err = soc_tplg_kcontrol_bind_io(&be->hdr, kc, tplg); 1287 if (err) { 1288 soc_control_err(tplg, &be->hdr, be->hdr.name); 1289 return err; 1290 } 1291 1292 /* pass control to driver for optional further init */ 1293 err = soc_tplg_control_load(tplg, kc, &be->hdr); 1294 if (err < 0) 1295 return err; 1296 1297 return 0; 1298 } 1299 1300 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1301 struct snd_soc_tplg_dapm_widget *w) 1302 { 1303 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1304 struct snd_soc_dapm_widget template, *widget; 1305 struct snd_soc_tplg_ctl_hdr *control_hdr; 1306 struct snd_soc_card *card = tplg->comp->card; 1307 unsigned int *kcontrol_type = NULL; 1308 struct snd_kcontrol_new *kc; 1309 int mixer_count = 0; 1310 int bytes_count = 0; 1311 int enum_count = 0; 1312 int ret = 0; 1313 int i; 1314 1315 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1316 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1317 return -EINVAL; 1318 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1319 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1320 return -EINVAL; 1321 1322 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1323 w->name, w->id); 1324 1325 memset(&template, 0, sizeof(template)); 1326 1327 /* map user to kernel widget ID */ 1328 template.id = get_widget_id(le32_to_cpu(w->id)); 1329 if ((int)template.id < 0) 1330 return template.id; 1331 1332 /* strings are allocated here, but used and freed by the widget */ 1333 template.name = kstrdup(w->name, GFP_KERNEL); 1334 if (!template.name) 1335 return -ENOMEM; 1336 template.sname = kstrdup(w->sname, GFP_KERNEL); 1337 if (!template.sname) { 1338 ret = -ENOMEM; 1339 goto err; 1340 } 1341 template.reg = le32_to_cpu(w->reg); 1342 template.shift = le32_to_cpu(w->shift); 1343 template.mask = le32_to_cpu(w->mask); 1344 template.subseq = le32_to_cpu(w->subseq); 1345 template.on_val = w->invert ? 0 : 1; 1346 template.off_val = w->invert ? 1 : 0; 1347 template.ignore_suspend = le32_to_cpu(w->ignore_suspend); 1348 template.event_flags = le16_to_cpu(w->event_flags); 1349 template.dobj.index = tplg->index; 1350 1351 tplg->pos += 1352 (sizeof(struct snd_soc_tplg_dapm_widget) + 1353 le32_to_cpu(w->priv.size)); 1354 1355 if (w->num_kcontrols == 0) { 1356 template.num_kcontrols = 0; 1357 goto widget; 1358 } 1359 1360 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1361 kc = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(*kc), GFP_KERNEL); 1362 if (!kc) { 1363 ret = -ENOMEM; 1364 goto hdr_err; 1365 } 1366 1367 kcontrol_type = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(unsigned int), 1368 GFP_KERNEL); 1369 if (!kcontrol_type) { 1370 ret = -ENOMEM; 1371 goto hdr_err; 1372 } 1373 1374 for (i = 0; i < le32_to_cpu(w->num_kcontrols); i++) { 1375 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1376 switch (le32_to_cpu(control_hdr->ops.info)) { 1377 case SND_SOC_TPLG_CTL_VOLSW: 1378 case SND_SOC_TPLG_CTL_STROBE: 1379 case SND_SOC_TPLG_CTL_VOLSW_SX: 1380 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1381 case SND_SOC_TPLG_CTL_RANGE: 1382 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1383 /* volume mixer */ 1384 kc[i].index = mixer_count; 1385 kcontrol_type[i] = SND_SOC_TPLG_TYPE_MIXER; 1386 mixer_count++; 1387 ret = soc_tplg_dapm_widget_dmixer_create(tplg, &kc[i]); 1388 if (ret < 0) 1389 goto hdr_err; 1390 break; 1391 case SND_SOC_TPLG_CTL_ENUM: 1392 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1393 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1394 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1395 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1396 /* enumerated mixer */ 1397 kc[i].index = enum_count; 1398 kcontrol_type[i] = SND_SOC_TPLG_TYPE_ENUM; 1399 enum_count++; 1400 ret = soc_tplg_dapm_widget_denum_create(tplg, &kc[i]); 1401 if (ret < 0) 1402 goto hdr_err; 1403 break; 1404 case SND_SOC_TPLG_CTL_BYTES: 1405 /* bytes control */ 1406 kc[i].index = bytes_count; 1407 kcontrol_type[i] = SND_SOC_TPLG_TYPE_BYTES; 1408 bytes_count++; 1409 ret = soc_tplg_dapm_widget_dbytes_create(tplg, &kc[i]); 1410 if (ret < 0) 1411 goto hdr_err; 1412 break; 1413 default: 1414 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1415 control_hdr->ops.get, control_hdr->ops.put, 1416 le32_to_cpu(control_hdr->ops.info)); 1417 ret = -EINVAL; 1418 goto hdr_err; 1419 } 1420 } 1421 1422 template.kcontrol_news = kc; 1423 dev_dbg(tplg->dev, "ASoC: template %s with %d/%d/%d (mixer/enum/bytes) control\n", 1424 w->name, mixer_count, enum_count, bytes_count); 1425 1426 widget: 1427 ret = soc_tplg_widget_load(tplg, &template, w); 1428 if (ret < 0) 1429 goto hdr_err; 1430 1431 /* card dapm mutex is held by the core if we are loading topology 1432 * data during sound card init. */ 1433 if (snd_soc_card_is_instantiated(card)) 1434 widget = snd_soc_dapm_new_control(dapm, &template); 1435 else 1436 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1437 if (IS_ERR(widget)) { 1438 ret = PTR_ERR(widget); 1439 goto hdr_err; 1440 } 1441 1442 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1443 widget->dobj.widget.kcontrol_type = kcontrol_type; 1444 if (tplg->ops) 1445 widget->dobj.unload = tplg->ops->widget_unload; 1446 widget->dobj.index = tplg->index; 1447 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1448 1449 ret = soc_tplg_widget_ready(tplg, widget, w); 1450 if (ret < 0) 1451 goto ready_err; 1452 1453 kfree(template.sname); 1454 kfree(template.name); 1455 1456 return 0; 1457 1458 ready_err: 1459 soc_tplg_remove_widget(widget->dapm->component, &widget->dobj, SOC_TPLG_PASS_WIDGET); 1460 snd_soc_dapm_free_widget(widget); 1461 hdr_err: 1462 kfree(template.sname); 1463 err: 1464 kfree(template.name); 1465 return ret; 1466 } 1467 1468 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1469 struct snd_soc_tplg_hdr *hdr) 1470 { 1471 int count, i; 1472 1473 count = le32_to_cpu(hdr->count); 1474 1475 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1476 1477 for (i = 0; i < count; i++) { 1478 struct snd_soc_tplg_dapm_widget *widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1479 int ret; 1480 1481 /* 1482 * check if widget itself fits within topology file 1483 * use sizeof instead of widget->size, as we can't be sure 1484 * it is set properly yet (file may end before it is present) 1485 */ 1486 if (soc_tplg_get_offset(tplg) + sizeof(*widget) >= tplg->fw->size) { 1487 dev_err(tplg->dev, "ASoC: invalid widget data size\n"); 1488 return -EINVAL; 1489 } 1490 1491 /* check if widget has proper size */ 1492 if (le32_to_cpu(widget->size) != sizeof(*widget)) { 1493 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1494 return -EINVAL; 1495 } 1496 1497 /* check if widget private data fits within topology file */ 1498 if (soc_tplg_get_offset(tplg) + le32_to_cpu(widget->priv.size) >= tplg->fw->size) { 1499 dev_err(tplg->dev, "ASoC: invalid widget private data size\n"); 1500 return -EINVAL; 1501 } 1502 1503 ret = soc_tplg_dapm_widget_create(tplg, widget); 1504 if (ret < 0) { 1505 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1506 widget->name); 1507 return ret; 1508 } 1509 } 1510 1511 return 0; 1512 } 1513 1514 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1515 { 1516 struct snd_soc_card *card = tplg->comp->card; 1517 int ret; 1518 1519 /* Card might not have been registered at this point. 1520 * If so, just return success. 1521 */ 1522 if (!snd_soc_card_is_instantiated(card)) { 1523 dev_warn(tplg->dev, "ASoC: Parent card not yet available, widget card binding deferred\n"); 1524 return 0; 1525 } 1526 1527 ret = snd_soc_dapm_new_widgets(card); 1528 if (ret < 0) 1529 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", ret); 1530 1531 return ret; 1532 } 1533 1534 static int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream, 1535 struct snd_soc_tplg_stream_caps *caps) 1536 { 1537 stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL); 1538 if (!stream->stream_name) 1539 return -ENOMEM; 1540 1541 stream->channels_min = le32_to_cpu(caps->channels_min); 1542 stream->channels_max = le32_to_cpu(caps->channels_max); 1543 stream->rates = le32_to_cpu(caps->rates); 1544 stream->rate_min = le32_to_cpu(caps->rate_min); 1545 stream->rate_max = le32_to_cpu(caps->rate_max); 1546 stream->formats = le64_to_cpu(caps->formats); 1547 stream->sig_bits = le32_to_cpu(caps->sig_bits); 1548 1549 return 0; 1550 } 1551 1552 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1553 unsigned int flag_mask, unsigned int flags) 1554 { 1555 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1556 dai_drv->symmetric_rate = 1557 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1558 1559 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1560 dai_drv->symmetric_channels = 1561 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) ? 1562 1 : 0; 1563 1564 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1565 dai_drv->symmetric_sample_bits = 1566 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1567 1 : 0; 1568 } 1569 1570 static const struct snd_soc_dai_ops tplg_dai_ops = { 1571 .compress_new = snd_soc_new_compress, 1572 }; 1573 1574 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1575 struct snd_soc_tplg_pcm *pcm) 1576 { 1577 struct snd_soc_dai_driver *dai_drv; 1578 struct snd_soc_pcm_stream *stream; 1579 struct snd_soc_tplg_stream_caps *caps; 1580 struct snd_soc_dai *dai; 1581 struct snd_soc_dapm_context *dapm = 1582 snd_soc_component_get_dapm(tplg->comp); 1583 int ret; 1584 1585 dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1586 if (dai_drv == NULL) 1587 return -ENOMEM; 1588 1589 if (strlen(pcm->dai_name)) { 1590 dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1591 if (!dai_drv->name) { 1592 ret = -ENOMEM; 1593 goto err; 1594 } 1595 } 1596 dai_drv->id = le32_to_cpu(pcm->dai_id); 1597 1598 if (pcm->playback) { 1599 stream = &dai_drv->playback; 1600 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1601 ret = set_stream_info(tplg, stream, caps); 1602 if (ret < 0) 1603 goto err; 1604 } 1605 1606 if (pcm->capture) { 1607 stream = &dai_drv->capture; 1608 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1609 ret = set_stream_info(tplg, stream, caps); 1610 if (ret < 0) 1611 goto err; 1612 } 1613 1614 if (pcm->compress) 1615 dai_drv->ops = &tplg_dai_ops; 1616 1617 /* pass control to component driver for optional further init */ 1618 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1619 if (ret < 0) { 1620 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 1621 goto err; 1622 } 1623 1624 dai_drv->dobj.index = tplg->index; 1625 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1626 if (tplg->ops) 1627 dai_drv->dobj.unload = tplg->ops->dai_unload; 1628 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1629 1630 /* register the DAI to the component */ 1631 dai = snd_soc_register_dai(tplg->comp, dai_drv, false); 1632 if (!dai) 1633 return -ENOMEM; 1634 1635 /* Create the DAI widgets here */ 1636 ret = snd_soc_dapm_new_dai_widgets(dapm, dai); 1637 if (ret != 0) { 1638 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret); 1639 snd_soc_unregister_dai(dai); 1640 return ret; 1641 } 1642 1643 return 0; 1644 1645 err: 1646 return ret; 1647 } 1648 1649 static void set_link_flags(struct snd_soc_dai_link *link, 1650 unsigned int flag_mask, unsigned int flags) 1651 { 1652 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1653 link->symmetric_rate = 1654 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1655 1656 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1657 link->symmetric_channels = 1658 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) ? 1659 1 : 0; 1660 1661 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1662 link->symmetric_sample_bits = 1663 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1664 1 : 0; 1665 1666 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1667 link->ignore_suspend = 1668 (flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) ? 1669 1 : 0; 1670 } 1671 1672 /* create the FE DAI link */ 1673 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1674 struct snd_soc_tplg_pcm *pcm) 1675 { 1676 struct snd_soc_dai_link *link; 1677 struct snd_soc_dai_link_component *dlc; 1678 int ret; 1679 1680 /* link + cpu + codec + platform */ 1681 link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1682 if (link == NULL) 1683 return -ENOMEM; 1684 1685 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1686 1687 link->cpus = &dlc[0]; 1688 link->num_cpus = 1; 1689 1690 link->dobj.index = tplg->index; 1691 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1692 if (tplg->ops) 1693 link->dobj.unload = tplg->ops->link_unload; 1694 1695 if (strlen(pcm->pcm_name)) { 1696 link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1697 link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1698 if (!link->name || !link->stream_name) { 1699 ret = -ENOMEM; 1700 goto err; 1701 } 1702 } 1703 link->id = le32_to_cpu(pcm->pcm_id); 1704 1705 if (strlen(pcm->dai_name)) { 1706 link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1707 if (!link->cpus->dai_name) { 1708 ret = -ENOMEM; 1709 goto err; 1710 } 1711 } 1712 1713 /* 1714 * Many topology are assuming link has Codec / Platform, and 1715 * these might be overwritten at soc_tplg_dai_link_load(). 1716 * Don't use &snd_soc_dummy_dlc here. 1717 */ 1718 link->codecs = &dlc[1]; /* Don't use &snd_soc_dummy_dlc here */ 1719 link->codecs->name = "snd-soc-dummy"; 1720 link->codecs->dai_name = "snd-soc-dummy-dai"; 1721 link->num_codecs = 1; 1722 1723 link->platforms = &dlc[2]; /* Don't use &snd_soc_dummy_dlc here */ 1724 link->platforms->name = "snd-soc-dummy"; 1725 link->num_platforms = 1; 1726 1727 /* enable DPCM */ 1728 link->dynamic = 1; 1729 link->ignore_pmdown_time = 1; 1730 link->dpcm_playback = le32_to_cpu(pcm->playback); 1731 link->dpcm_capture = le32_to_cpu(pcm->capture); 1732 if (pcm->flag_mask) 1733 set_link_flags(link, 1734 le32_to_cpu(pcm->flag_mask), 1735 le32_to_cpu(pcm->flags)); 1736 1737 /* pass control to component driver for optional further init */ 1738 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1739 if (ret < 0) { 1740 dev_err(tplg->dev, "ASoC: FE link loading failed\n"); 1741 goto err; 1742 } 1743 1744 ret = snd_soc_add_pcm_runtimes(tplg->comp->card, link, 1); 1745 if (ret < 0) { 1746 if (ret != -EPROBE_DEFER) 1747 dev_err(tplg->dev, "ASoC: adding FE link failed\n"); 1748 goto err; 1749 } 1750 1751 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1752 1753 return 0; 1754 err: 1755 return ret; 1756 } 1757 1758 /* create a FE DAI and DAI link from the PCM object */ 1759 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1760 struct snd_soc_tplg_pcm *pcm) 1761 { 1762 int ret; 1763 1764 ret = soc_tplg_dai_create(tplg, pcm); 1765 if (ret < 0) 1766 return ret; 1767 1768 return soc_tplg_fe_link_create(tplg, pcm); 1769 } 1770 1771 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1772 struct snd_soc_tplg_hdr *hdr) 1773 { 1774 struct snd_soc_tplg_pcm *pcm; 1775 int count; 1776 int size; 1777 int i; 1778 int ret; 1779 1780 count = le32_to_cpu(hdr->count); 1781 1782 /* check the element size and count */ 1783 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1784 size = le32_to_cpu(pcm->size); 1785 if (size > sizeof(struct snd_soc_tplg_pcm)) { 1786 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1787 size); 1788 return -EINVAL; 1789 } 1790 1791 if (soc_tplg_check_elem_count(tplg, 1792 size, count, 1793 le32_to_cpu(hdr->payload_size), 1794 "PCM DAI")) 1795 return -EINVAL; 1796 1797 for (i = 0; i < count; i++) { 1798 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1799 size = le32_to_cpu(pcm->size); 1800 1801 /* check ABI version by size, create a new version of pcm 1802 * if abi not match. 1803 */ 1804 if (size != sizeof(*pcm)) 1805 return -EINVAL; 1806 1807 /* create the FE DAIs and DAI links */ 1808 ret = soc_tplg_pcm_create(tplg, pcm); 1809 if (ret < 0) 1810 return ret; 1811 1812 /* offset by version-specific struct size and 1813 * real priv data size 1814 */ 1815 tplg->pos += size + le32_to_cpu(pcm->priv.size); 1816 } 1817 1818 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1819 1820 return 0; 1821 } 1822 1823 /** 1824 * set_link_hw_format - Set the HW audio format of the physical DAI link. 1825 * @link: &snd_soc_dai_link which should be updated 1826 * @cfg: physical link configs. 1827 * 1828 * Topology context contains a list of supported HW formats (configs) and 1829 * a default format ID for the physical link. This function will use this 1830 * default ID to choose the HW format to set the link's DAI format for init. 1831 */ 1832 static void set_link_hw_format(struct snd_soc_dai_link *link, 1833 struct snd_soc_tplg_link_config *cfg) 1834 { 1835 struct snd_soc_tplg_hw_config *hw_config; 1836 unsigned char bclk_provider, fsync_provider; 1837 unsigned char invert_bclk, invert_fsync; 1838 int i; 1839 1840 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 1841 hw_config = &cfg->hw_config[i]; 1842 if (hw_config->id != cfg->default_hw_config_id) 1843 continue; 1844 1845 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 1846 SND_SOC_DAIFMT_FORMAT_MASK; 1847 1848 /* clock gating */ 1849 switch (hw_config->clock_gated) { 1850 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 1851 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 1852 break; 1853 1854 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 1855 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 1856 break; 1857 1858 default: 1859 /* ignore the value */ 1860 break; 1861 } 1862 1863 /* clock signal polarity */ 1864 invert_bclk = hw_config->invert_bclk; 1865 invert_fsync = hw_config->invert_fsync; 1866 if (!invert_bclk && !invert_fsync) 1867 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 1868 else if (!invert_bclk && invert_fsync) 1869 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 1870 else if (invert_bclk && !invert_fsync) 1871 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 1872 else 1873 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 1874 1875 /* clock masters */ 1876 bclk_provider = (hw_config->bclk_provider == 1877 SND_SOC_TPLG_BCLK_CP); 1878 fsync_provider = (hw_config->fsync_provider == 1879 SND_SOC_TPLG_FSYNC_CP); 1880 if (bclk_provider && fsync_provider) 1881 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 1882 else if (!bclk_provider && fsync_provider) 1883 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFP; 1884 else if (bclk_provider && !fsync_provider) 1885 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFC; 1886 else 1887 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC; 1888 } 1889 } 1890 1891 /** 1892 * snd_soc_find_dai_link - Find a DAI link 1893 * 1894 * @card: soc card 1895 * @id: DAI link ID to match 1896 * @name: DAI link name to match, optional 1897 * @stream_name: DAI link stream name to match, optional 1898 * 1899 * This function will search all existing DAI links of the soc card to 1900 * find the link of the same ID. Since DAI links may not have their 1901 * unique ID, so name and stream name should also match if being 1902 * specified. 1903 * 1904 * Return: pointer of DAI link, or NULL if not found. 1905 */ 1906 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, 1907 int id, const char *name, 1908 const char *stream_name) 1909 { 1910 struct snd_soc_pcm_runtime *rtd; 1911 1912 for_each_card_rtds(card, rtd) { 1913 struct snd_soc_dai_link *link = rtd->dai_link; 1914 1915 if (link->id != id) 1916 continue; 1917 1918 if (name && (!link->name || !strstr(link->name, name))) 1919 continue; 1920 1921 if (stream_name && (!link->stream_name || 1922 !strstr(link->stream_name, stream_name))) 1923 continue; 1924 1925 return link; 1926 } 1927 1928 return NULL; 1929 } 1930 1931 /* Find and configure an existing physical DAI link */ 1932 static int soc_tplg_link_config(struct soc_tplg *tplg, 1933 struct snd_soc_tplg_link_config *cfg) 1934 { 1935 struct snd_soc_dai_link *link; 1936 const char *name, *stream_name; 1937 size_t len; 1938 int ret; 1939 1940 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1941 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1942 return -EINVAL; 1943 else if (len) 1944 name = cfg->name; 1945 else 1946 name = NULL; 1947 1948 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1949 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1950 return -EINVAL; 1951 else if (len) 1952 stream_name = cfg->stream_name; 1953 else 1954 stream_name = NULL; 1955 1956 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 1957 name, stream_name); 1958 if (!link) { 1959 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 1960 name, cfg->id); 1961 return -EINVAL; 1962 } 1963 1964 /* hw format */ 1965 if (cfg->num_hw_configs) 1966 set_link_hw_format(link, cfg); 1967 1968 /* flags */ 1969 if (cfg->flag_mask) 1970 set_link_flags(link, 1971 le32_to_cpu(cfg->flag_mask), 1972 le32_to_cpu(cfg->flags)); 1973 1974 /* pass control to component driver for optional further init */ 1975 ret = soc_tplg_dai_link_load(tplg, link, cfg); 1976 if (ret < 0) { 1977 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 1978 return ret; 1979 } 1980 1981 /* for unloading it in snd_soc_tplg_component_remove */ 1982 link->dobj.index = tplg->index; 1983 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 1984 if (tplg->ops) 1985 link->dobj.unload = tplg->ops->link_unload; 1986 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1987 1988 return 0; 1989 } 1990 1991 1992 /* Load physical link config elements from the topology context */ 1993 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 1994 struct snd_soc_tplg_hdr *hdr) 1995 { 1996 struct snd_soc_tplg_link_config *link; 1997 int count; 1998 int size; 1999 int i, ret; 2000 2001 count = le32_to_cpu(hdr->count); 2002 2003 /* check the element size and count */ 2004 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2005 size = le32_to_cpu(link->size); 2006 if (size > sizeof(struct snd_soc_tplg_link_config)) { 2007 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2008 size); 2009 return -EINVAL; 2010 } 2011 2012 if (soc_tplg_check_elem_count(tplg, size, count, 2013 le32_to_cpu(hdr->payload_size), 2014 "physical link config")) 2015 return -EINVAL; 2016 2017 /* config physical DAI links */ 2018 for (i = 0; i < count; i++) { 2019 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2020 size = le32_to_cpu(link->size); 2021 if (size != sizeof(*link)) 2022 return -EINVAL; 2023 2024 ret = soc_tplg_link_config(tplg, link); 2025 if (ret < 0) 2026 return ret; 2027 2028 /* offset by version-specific struct size and 2029 * real priv data size 2030 */ 2031 tplg->pos += size + le32_to_cpu(link->priv.size); 2032 } 2033 2034 return 0; 2035 } 2036 2037 /** 2038 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2039 * @tplg: topology context 2040 * @d: physical DAI configs. 2041 * 2042 * The physical dai should already be registered by the platform driver. 2043 * The platform driver should specify the DAI name and ID for matching. 2044 */ 2045 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2046 struct snd_soc_tplg_dai *d) 2047 { 2048 struct snd_soc_dai_link_component dai_component; 2049 struct snd_soc_dai *dai; 2050 struct snd_soc_dai_driver *dai_drv; 2051 struct snd_soc_pcm_stream *stream; 2052 struct snd_soc_tplg_stream_caps *caps; 2053 int ret; 2054 2055 memset(&dai_component, 0, sizeof(dai_component)); 2056 2057 dai_component.dai_name = d->dai_name; 2058 dai = snd_soc_find_dai(&dai_component); 2059 if (!dai) { 2060 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2061 d->dai_name); 2062 return -EINVAL; 2063 } 2064 2065 if (le32_to_cpu(d->dai_id) != dai->id) { 2066 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2067 d->dai_name); 2068 return -EINVAL; 2069 } 2070 2071 dai_drv = dai->driver; 2072 if (!dai_drv) 2073 return -EINVAL; 2074 2075 if (d->playback) { 2076 stream = &dai_drv->playback; 2077 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2078 ret = set_stream_info(tplg, stream, caps); 2079 if (ret < 0) 2080 goto err; 2081 } 2082 2083 if (d->capture) { 2084 stream = &dai_drv->capture; 2085 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2086 ret = set_stream_info(tplg, stream, caps); 2087 if (ret < 0) 2088 goto err; 2089 } 2090 2091 if (d->flag_mask) 2092 set_dai_flags(dai_drv, 2093 le32_to_cpu(d->flag_mask), 2094 le32_to_cpu(d->flags)); 2095 2096 /* pass control to component driver for optional further init */ 2097 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2098 if (ret < 0) { 2099 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 2100 goto err; 2101 } 2102 2103 return 0; 2104 2105 err: 2106 return ret; 2107 } 2108 2109 /* load physical DAI elements */ 2110 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2111 struct snd_soc_tplg_hdr *hdr) 2112 { 2113 int count; 2114 int i; 2115 2116 count = le32_to_cpu(hdr->count); 2117 2118 /* config the existing BE DAIs */ 2119 for (i = 0; i < count; i++) { 2120 struct snd_soc_tplg_dai *dai = (struct snd_soc_tplg_dai *)tplg->pos; 2121 int ret; 2122 2123 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 2124 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2125 return -EINVAL; 2126 } 2127 2128 ret = soc_tplg_dai_config(tplg, dai); 2129 if (ret < 0) { 2130 dev_err(tplg->dev, "ASoC: failed to configure DAI\n"); 2131 return ret; 2132 } 2133 2134 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 2135 } 2136 2137 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2138 return 0; 2139 } 2140 2141 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2142 struct snd_soc_tplg_hdr *hdr) 2143 { 2144 struct snd_soc_tplg_manifest *manifest; 2145 int ret = 0; 2146 2147 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2148 2149 /* check ABI version by size, create a new manifest if abi not match */ 2150 if (le32_to_cpu(manifest->size) != sizeof(*manifest)) 2151 return -EINVAL; 2152 2153 /* pass control to component driver for optional further init */ 2154 if (tplg->ops && tplg->ops->manifest) 2155 ret = tplg->ops->manifest(tplg->comp, tplg->index, manifest); 2156 2157 return ret; 2158 } 2159 2160 /* validate header magic, size and type */ 2161 static int soc_tplg_valid_header(struct soc_tplg *tplg, 2162 struct snd_soc_tplg_hdr *hdr) 2163 { 2164 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 2165 dev_err(tplg->dev, 2166 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2167 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2168 tplg->fw->size); 2169 return -EINVAL; 2170 } 2171 2172 if (soc_tplg_get_hdr_offset(tplg) + le32_to_cpu(hdr->payload_size) >= tplg->fw->size) { 2173 dev_err(tplg->dev, 2174 "ASoC: invalid header of type %d at offset %ld payload_size %d\n", 2175 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2176 hdr->payload_size); 2177 return -EINVAL; 2178 } 2179 2180 /* big endian firmware objects not supported atm */ 2181 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) { 2182 dev_err(tplg->dev, 2183 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2184 tplg->pass, hdr->magic, 2185 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2186 return -EINVAL; 2187 } 2188 2189 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2190 dev_err(tplg->dev, 2191 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2192 tplg->pass, hdr->magic, 2193 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2194 return -EINVAL; 2195 } 2196 2197 /* Support ABI from version 4 */ 2198 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2199 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2200 dev_err(tplg->dev, 2201 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2202 tplg->pass, hdr->abi, 2203 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2204 tplg->fw->size); 2205 return -EINVAL; 2206 } 2207 2208 if (hdr->payload_size == 0) { 2209 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2210 soc_tplg_get_hdr_offset(tplg)); 2211 return -EINVAL; 2212 } 2213 2214 return 0; 2215 } 2216 2217 /* check header type and call appropriate handler */ 2218 static int soc_tplg_load_header(struct soc_tplg *tplg, 2219 struct snd_soc_tplg_hdr *hdr) 2220 { 2221 int (*elem_load)(struct soc_tplg *tplg, 2222 struct snd_soc_tplg_hdr *hdr); 2223 unsigned int hdr_pass; 2224 2225 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2226 2227 tplg->index = le32_to_cpu(hdr->index); 2228 2229 switch (le32_to_cpu(hdr->type)) { 2230 case SND_SOC_TPLG_TYPE_MIXER: 2231 case SND_SOC_TPLG_TYPE_ENUM: 2232 case SND_SOC_TPLG_TYPE_BYTES: 2233 hdr_pass = SOC_TPLG_PASS_CONTROL; 2234 elem_load = soc_tplg_kcontrol_elems_load; 2235 break; 2236 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2237 hdr_pass = SOC_TPLG_PASS_GRAPH; 2238 elem_load = soc_tplg_dapm_graph_elems_load; 2239 break; 2240 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2241 hdr_pass = SOC_TPLG_PASS_WIDGET; 2242 elem_load = soc_tplg_dapm_widget_elems_load; 2243 break; 2244 case SND_SOC_TPLG_TYPE_PCM: 2245 hdr_pass = SOC_TPLG_PASS_PCM_DAI; 2246 elem_load = soc_tplg_pcm_elems_load; 2247 break; 2248 case SND_SOC_TPLG_TYPE_DAI: 2249 hdr_pass = SOC_TPLG_PASS_BE_DAI; 2250 elem_load = soc_tplg_dai_elems_load; 2251 break; 2252 case SND_SOC_TPLG_TYPE_DAI_LINK: 2253 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2254 /* physical link configurations */ 2255 hdr_pass = SOC_TPLG_PASS_LINK; 2256 elem_load = soc_tplg_link_elems_load; 2257 break; 2258 case SND_SOC_TPLG_TYPE_MANIFEST: 2259 hdr_pass = SOC_TPLG_PASS_MANIFEST; 2260 elem_load = soc_tplg_manifest_load; 2261 break; 2262 default: 2263 /* bespoke vendor data object */ 2264 hdr_pass = SOC_TPLG_PASS_VENDOR; 2265 elem_load = soc_tplg_vendor_load; 2266 break; 2267 } 2268 2269 if (tplg->pass == hdr_pass) { 2270 dev_dbg(tplg->dev, 2271 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2272 hdr->payload_size, hdr->type, hdr->version, 2273 hdr->vendor_type, tplg->pass); 2274 return elem_load(tplg, hdr); 2275 } 2276 2277 return 0; 2278 } 2279 2280 /* process the topology file headers */ 2281 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2282 { 2283 int ret; 2284 2285 /* process the header types from start to end */ 2286 for (tplg->pass = SOC_TPLG_PASS_START; tplg->pass <= SOC_TPLG_PASS_END; tplg->pass++) { 2287 struct snd_soc_tplg_hdr *hdr; 2288 2289 tplg->hdr_pos = tplg->fw->data; 2290 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2291 2292 while (!soc_tplg_is_eof(tplg)) { 2293 2294 /* make sure header is valid before loading */ 2295 ret = soc_tplg_valid_header(tplg, hdr); 2296 if (ret < 0) 2297 return ret; 2298 2299 /* load the header object */ 2300 ret = soc_tplg_load_header(tplg, hdr); 2301 if (ret < 0) { 2302 if (ret != -EPROBE_DEFER) { 2303 dev_err(tplg->dev, 2304 "ASoC: topology: could not load header: %d\n", 2305 ret); 2306 } 2307 return ret; 2308 } 2309 2310 /* goto next header */ 2311 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2312 sizeof(struct snd_soc_tplg_hdr); 2313 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2314 } 2315 2316 } 2317 2318 /* signal DAPM we are complete */ 2319 ret = soc_tplg_dapm_complete(tplg); 2320 2321 return ret; 2322 } 2323 2324 static int soc_tplg_load(struct soc_tplg *tplg) 2325 { 2326 int ret; 2327 2328 ret = soc_tplg_process_headers(tplg); 2329 if (ret == 0) 2330 return soc_tplg_complete(tplg); 2331 2332 return ret; 2333 } 2334 2335 /* load audio component topology from "firmware" file */ 2336 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2337 struct snd_soc_tplg_ops *ops, const struct firmware *fw) 2338 { 2339 struct soc_tplg tplg; 2340 int ret; 2341 2342 /* 2343 * check if we have sane parameters: 2344 * comp - needs to exist to keep and reference data while parsing 2345 * comp->card - used for setting card related parameters 2346 * comp->card->dev - used for resource management and prints 2347 * fw - we need it, as it is the very thing we parse 2348 */ 2349 if (!comp || !comp->card || !comp->card->dev || !fw) 2350 return -EINVAL; 2351 2352 /* setup parsing context */ 2353 memset(&tplg, 0, sizeof(tplg)); 2354 tplg.fw = fw; 2355 tplg.dev = comp->card->dev; 2356 tplg.comp = comp; 2357 if (ops) { 2358 tplg.ops = ops; 2359 tplg.io_ops = ops->io_ops; 2360 tplg.io_ops_count = ops->io_ops_count; 2361 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2362 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2363 } 2364 2365 ret = soc_tplg_load(&tplg); 2366 /* free the created components if fail to load topology */ 2367 if (ret) 2368 snd_soc_tplg_component_remove(comp); 2369 2370 return ret; 2371 } 2372 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2373 2374 /* remove dynamic controls from the component driver */ 2375 int snd_soc_tplg_component_remove(struct snd_soc_component *comp) 2376 { 2377 struct snd_soc_dobj *dobj, *next_dobj; 2378 int pass; 2379 2380 /* process the header types from end to start */ 2381 for (pass = SOC_TPLG_PASS_END; pass >= SOC_TPLG_PASS_START; pass--) { 2382 2383 /* remove mixer controls */ 2384 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2385 list) { 2386 2387 switch (dobj->type) { 2388 case SND_SOC_DOBJ_BYTES: 2389 case SND_SOC_DOBJ_ENUM: 2390 case SND_SOC_DOBJ_MIXER: 2391 soc_tplg_remove_kcontrol(comp, dobj, pass); 2392 break; 2393 case SND_SOC_DOBJ_GRAPH: 2394 soc_tplg_remove_route(comp, dobj, pass); 2395 break; 2396 case SND_SOC_DOBJ_WIDGET: 2397 soc_tplg_remove_widget(comp, dobj, pass); 2398 break; 2399 case SND_SOC_DOBJ_PCM: 2400 soc_tplg_remove_dai(comp, dobj, pass); 2401 break; 2402 case SND_SOC_DOBJ_DAI_LINK: 2403 soc_tplg_remove_link(comp, dobj, pass); 2404 break; 2405 case SND_SOC_DOBJ_BACKEND_LINK: 2406 /* 2407 * call link_unload ops if extra 2408 * deinitialization is needed. 2409 */ 2410 remove_backend_link(comp, dobj, pass); 2411 break; 2412 default: 2413 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2414 dobj->type); 2415 break; 2416 } 2417 } 2418 } 2419 2420 /* let caller know if FW can be freed when no objects are left */ 2421 return !list_empty(&comp->dobj_list); 2422 } 2423 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2424