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 = devm_kmemdup(tplg->dev, elem->source, 1064 min(strlen(elem->source), 1065 SNDRV_CTL_ELEM_ID_NAME_MAXLEN), 1066 GFP_KERNEL); 1067 route->sink = devm_kmemdup(tplg->dev, elem->sink, 1068 min(strlen(elem->sink), SNDRV_CTL_ELEM_ID_NAME_MAXLEN), 1069 GFP_KERNEL); 1070 if (!route->source || !route->sink) { 1071 ret = -ENOMEM; 1072 break; 1073 } 1074 1075 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) != 0) { 1076 route->control = devm_kmemdup(tplg->dev, elem->control, 1077 min(strlen(elem->control), 1078 SNDRV_CTL_ELEM_ID_NAME_MAXLEN), 1079 GFP_KERNEL); 1080 if (!route->control) { 1081 ret = -ENOMEM; 1082 break; 1083 } 1084 } 1085 1086 /* add route dobj to dobj_list */ 1087 route->dobj.type = SND_SOC_DOBJ_GRAPH; 1088 if (tplg->ops) 1089 route->dobj.unload = tplg->ops->dapm_route_unload; 1090 route->dobj.index = tplg->index; 1091 list_add(&route->dobj.list, &tplg->comp->dobj_list); 1092 1093 ret = soc_tplg_add_route(tplg, route); 1094 if (ret < 0) { 1095 dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret); 1096 break; 1097 } 1098 1099 /* add route, but keep going if some fail */ 1100 snd_soc_dapm_add_routes(dapm, route, 1); 1101 } 1102 1103 return ret; 1104 } 1105 1106 static int soc_tplg_dapm_widget_dmixer_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1107 { 1108 struct soc_mixer_control *sm; 1109 struct snd_soc_tplg_mixer_control *mc; 1110 int err; 1111 1112 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1113 1114 /* validate kcontrol */ 1115 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1116 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1117 return -EINVAL; 1118 1119 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL); 1120 if (!sm) 1121 return -ENOMEM; 1122 1123 tplg->pos += sizeof(struct snd_soc_tplg_mixer_control) + 1124 le32_to_cpu(mc->priv.size); 1125 1126 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s\n", 1127 mc->hdr.name); 1128 1129 kc->private_value = (long)sm; 1130 kc->name = devm_kstrdup(tplg->dev, mc->hdr.name, GFP_KERNEL); 1131 if (!kc->name) 1132 return -ENOMEM; 1133 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1134 kc->access = le32_to_cpu(mc->hdr.access); 1135 1136 /* we only support FL/FR channel mapping atm */ 1137 sm->reg = tplg_chan_get_reg(tplg, mc->channel, 1138 SNDRV_CHMAP_FL); 1139 sm->rreg = tplg_chan_get_reg(tplg, mc->channel, 1140 SNDRV_CHMAP_FR); 1141 sm->shift = tplg_chan_get_shift(tplg, mc->channel, 1142 SNDRV_CHMAP_FL); 1143 sm->rshift = tplg_chan_get_shift(tplg, mc->channel, 1144 SNDRV_CHMAP_FR); 1145 1146 sm->max = le32_to_cpu(mc->max); 1147 sm->min = le32_to_cpu(mc->min); 1148 sm->invert = le32_to_cpu(mc->invert); 1149 sm->platform_max = le32_to_cpu(mc->platform_max); 1150 sm->dobj.index = tplg->index; 1151 INIT_LIST_HEAD(&sm->dobj.list); 1152 1153 /* map io handlers */ 1154 err = soc_tplg_kcontrol_bind_io(&mc->hdr, kc, tplg); 1155 if (err) { 1156 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1157 return err; 1158 } 1159 1160 /* create any TLV data */ 1161 err = soc_tplg_create_tlv(tplg, kc, &mc->hdr); 1162 if (err < 0) { 1163 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 1164 mc->hdr.name); 1165 return err; 1166 } 1167 1168 /* pass control to driver for optional further init */ 1169 err = soc_tplg_control_load(tplg, kc, &mc->hdr); 1170 if (err < 0) 1171 return err; 1172 1173 return 0; 1174 } 1175 1176 static int soc_tplg_dapm_widget_denum_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1177 { 1178 struct snd_soc_tplg_enum_control *ec; 1179 struct soc_enum *se; 1180 int err; 1181 1182 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1183 /* validate kcontrol */ 1184 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1185 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1186 return -EINVAL; 1187 1188 se = devm_kzalloc(tplg->dev, sizeof(*se), GFP_KERNEL); 1189 if (!se) 1190 return -ENOMEM; 1191 1192 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1193 le32_to_cpu(ec->priv.size)); 1194 1195 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1196 ec->hdr.name); 1197 1198 kc->private_value = (long)se; 1199 kc->name = devm_kstrdup(tplg->dev, ec->hdr.name, GFP_KERNEL); 1200 if (!kc->name) 1201 return -ENOMEM; 1202 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1203 kc->access = le32_to_cpu(ec->hdr.access); 1204 1205 /* we only support FL/FR channel mapping atm */ 1206 se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1207 se->shift_l = tplg_chan_get_shift(tplg, ec->channel, 1208 SNDRV_CHMAP_FL); 1209 se->shift_r = tplg_chan_get_shift(tplg, ec->channel, 1210 SNDRV_CHMAP_FR); 1211 1212 se->items = le32_to_cpu(ec->items); 1213 se->mask = le32_to_cpu(ec->mask); 1214 se->dobj.index = tplg->index; 1215 1216 switch (le32_to_cpu(ec->hdr.ops.info)) { 1217 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1218 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1219 err = soc_tplg_denum_create_values(tplg, se, ec); 1220 if (err < 0) { 1221 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1222 ec->hdr.name); 1223 return err; 1224 } 1225 fallthrough; 1226 case SND_SOC_TPLG_CTL_ENUM: 1227 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1228 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1229 err = soc_tplg_denum_create_texts(tplg, se, ec); 1230 if (err < 0) { 1231 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1232 ec->hdr.name); 1233 return err; 1234 } 1235 break; 1236 default: 1237 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1238 ec->hdr.ops.info, ec->hdr.name); 1239 return -EINVAL; 1240 } 1241 1242 /* map io handlers */ 1243 err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, tplg); 1244 if (err) { 1245 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1246 return err; 1247 } 1248 1249 /* pass control to driver for optional further init */ 1250 err = soc_tplg_control_load(tplg, kc, &ec->hdr); 1251 if (err < 0) 1252 return err; 1253 1254 return 0; 1255 } 1256 1257 static int soc_tplg_dapm_widget_dbytes_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1258 { 1259 struct snd_soc_tplg_bytes_control *be; 1260 struct soc_bytes_ext *sbe; 1261 int err; 1262 1263 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1264 1265 /* validate kcontrol */ 1266 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1267 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1268 return -EINVAL; 1269 1270 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL); 1271 if (!sbe) 1272 return -ENOMEM; 1273 1274 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1275 le32_to_cpu(be->priv.size)); 1276 1277 dev_dbg(tplg->dev, 1278 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1279 be->hdr.name, be->hdr.access); 1280 1281 kc->private_value = (long)sbe; 1282 kc->name = devm_kstrdup(tplg->dev, be->hdr.name, GFP_KERNEL); 1283 if (!kc->name) 1284 return -ENOMEM; 1285 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1286 kc->access = le32_to_cpu(be->hdr.access); 1287 1288 sbe->max = le32_to_cpu(be->max); 1289 INIT_LIST_HEAD(&sbe->dobj.list); 1290 1291 /* map standard io handlers and check for external handlers */ 1292 err = soc_tplg_kcontrol_bind_io(&be->hdr, kc, tplg); 1293 if (err) { 1294 soc_control_err(tplg, &be->hdr, be->hdr.name); 1295 return err; 1296 } 1297 1298 /* pass control to driver for optional further init */ 1299 err = soc_tplg_control_load(tplg, kc, &be->hdr); 1300 if (err < 0) 1301 return err; 1302 1303 return 0; 1304 } 1305 1306 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1307 struct snd_soc_tplg_dapm_widget *w) 1308 { 1309 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1310 struct snd_soc_dapm_widget template, *widget; 1311 struct snd_soc_tplg_ctl_hdr *control_hdr; 1312 struct snd_soc_card *card = tplg->comp->card; 1313 unsigned int *kcontrol_type = NULL; 1314 struct snd_kcontrol_new *kc; 1315 int mixer_count = 0; 1316 int bytes_count = 0; 1317 int enum_count = 0; 1318 int ret = 0; 1319 int i; 1320 1321 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1322 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1323 return -EINVAL; 1324 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1325 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1326 return -EINVAL; 1327 1328 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1329 w->name, w->id); 1330 1331 memset(&template, 0, sizeof(template)); 1332 1333 /* map user to kernel widget ID */ 1334 template.id = get_widget_id(le32_to_cpu(w->id)); 1335 if ((int)template.id < 0) 1336 return template.id; 1337 1338 /* strings are allocated here, but used and freed by the widget */ 1339 template.name = kstrdup(w->name, GFP_KERNEL); 1340 if (!template.name) 1341 return -ENOMEM; 1342 template.sname = kstrdup(w->sname, GFP_KERNEL); 1343 if (!template.sname) { 1344 ret = -ENOMEM; 1345 goto err; 1346 } 1347 template.reg = le32_to_cpu(w->reg); 1348 template.shift = le32_to_cpu(w->shift); 1349 template.mask = le32_to_cpu(w->mask); 1350 template.subseq = le32_to_cpu(w->subseq); 1351 template.on_val = w->invert ? 0 : 1; 1352 template.off_val = w->invert ? 1 : 0; 1353 template.ignore_suspend = le32_to_cpu(w->ignore_suspend); 1354 template.event_flags = le16_to_cpu(w->event_flags); 1355 template.dobj.index = tplg->index; 1356 1357 tplg->pos += 1358 (sizeof(struct snd_soc_tplg_dapm_widget) + 1359 le32_to_cpu(w->priv.size)); 1360 1361 if (w->num_kcontrols == 0) { 1362 template.num_kcontrols = 0; 1363 goto widget; 1364 } 1365 1366 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1367 kc = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(*kc), GFP_KERNEL); 1368 if (!kc) { 1369 ret = -ENOMEM; 1370 goto hdr_err; 1371 } 1372 1373 kcontrol_type = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(unsigned int), 1374 GFP_KERNEL); 1375 if (!kcontrol_type) { 1376 ret = -ENOMEM; 1377 goto hdr_err; 1378 } 1379 1380 for (i = 0; i < le32_to_cpu(w->num_kcontrols); i++) { 1381 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1382 switch (le32_to_cpu(control_hdr->ops.info)) { 1383 case SND_SOC_TPLG_CTL_VOLSW: 1384 case SND_SOC_TPLG_CTL_STROBE: 1385 case SND_SOC_TPLG_CTL_VOLSW_SX: 1386 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1387 case SND_SOC_TPLG_CTL_RANGE: 1388 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1389 /* volume mixer */ 1390 kc[i].index = mixer_count; 1391 kcontrol_type[i] = SND_SOC_TPLG_TYPE_MIXER; 1392 mixer_count++; 1393 ret = soc_tplg_dapm_widget_dmixer_create(tplg, &kc[i]); 1394 if (ret < 0) 1395 goto hdr_err; 1396 break; 1397 case SND_SOC_TPLG_CTL_ENUM: 1398 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1399 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1400 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1401 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1402 /* enumerated mixer */ 1403 kc[i].index = enum_count; 1404 kcontrol_type[i] = SND_SOC_TPLG_TYPE_ENUM; 1405 enum_count++; 1406 ret = soc_tplg_dapm_widget_denum_create(tplg, &kc[i]); 1407 if (ret < 0) 1408 goto hdr_err; 1409 break; 1410 case SND_SOC_TPLG_CTL_BYTES: 1411 /* bytes control */ 1412 kc[i].index = bytes_count; 1413 kcontrol_type[i] = SND_SOC_TPLG_TYPE_BYTES; 1414 bytes_count++; 1415 ret = soc_tplg_dapm_widget_dbytes_create(tplg, &kc[i]); 1416 if (ret < 0) 1417 goto hdr_err; 1418 break; 1419 default: 1420 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1421 control_hdr->ops.get, control_hdr->ops.put, 1422 le32_to_cpu(control_hdr->ops.info)); 1423 ret = -EINVAL; 1424 goto hdr_err; 1425 } 1426 } 1427 1428 template.kcontrol_news = kc; 1429 dev_dbg(tplg->dev, "ASoC: template %s with %d/%d/%d (mixer/enum/bytes) control\n", 1430 w->name, mixer_count, enum_count, bytes_count); 1431 1432 widget: 1433 ret = soc_tplg_widget_load(tplg, &template, w); 1434 if (ret < 0) 1435 goto hdr_err; 1436 1437 /* card dapm mutex is held by the core if we are loading topology 1438 * data during sound card init. */ 1439 if (snd_soc_card_is_instantiated(card)) 1440 widget = snd_soc_dapm_new_control(dapm, &template); 1441 else 1442 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1443 if (IS_ERR(widget)) { 1444 ret = PTR_ERR(widget); 1445 goto hdr_err; 1446 } 1447 1448 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1449 widget->dobj.widget.kcontrol_type = kcontrol_type; 1450 if (tplg->ops) 1451 widget->dobj.unload = tplg->ops->widget_unload; 1452 widget->dobj.index = tplg->index; 1453 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1454 1455 ret = soc_tplg_widget_ready(tplg, widget, w); 1456 if (ret < 0) 1457 goto ready_err; 1458 1459 kfree(template.sname); 1460 kfree(template.name); 1461 1462 return 0; 1463 1464 ready_err: 1465 soc_tplg_remove_widget(widget->dapm->component, &widget->dobj, SOC_TPLG_PASS_WIDGET); 1466 snd_soc_dapm_free_widget(widget); 1467 hdr_err: 1468 kfree(template.sname); 1469 err: 1470 kfree(template.name); 1471 return ret; 1472 } 1473 1474 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1475 struct snd_soc_tplg_hdr *hdr) 1476 { 1477 int count, i; 1478 1479 count = le32_to_cpu(hdr->count); 1480 1481 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1482 1483 for (i = 0; i < count; i++) { 1484 struct snd_soc_tplg_dapm_widget *widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1485 int ret; 1486 1487 /* 1488 * check if widget itself fits within topology file 1489 * use sizeof instead of widget->size, as we can't be sure 1490 * it is set properly yet (file may end before it is present) 1491 */ 1492 if (soc_tplg_get_offset(tplg) + sizeof(*widget) >= tplg->fw->size) { 1493 dev_err(tplg->dev, "ASoC: invalid widget data size\n"); 1494 return -EINVAL; 1495 } 1496 1497 /* check if widget has proper size */ 1498 if (le32_to_cpu(widget->size) != sizeof(*widget)) { 1499 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1500 return -EINVAL; 1501 } 1502 1503 /* check if widget private data fits within topology file */ 1504 if (soc_tplg_get_offset(tplg) + le32_to_cpu(widget->priv.size) >= tplg->fw->size) { 1505 dev_err(tplg->dev, "ASoC: invalid widget private data size\n"); 1506 return -EINVAL; 1507 } 1508 1509 ret = soc_tplg_dapm_widget_create(tplg, widget); 1510 if (ret < 0) { 1511 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1512 widget->name); 1513 return ret; 1514 } 1515 } 1516 1517 return 0; 1518 } 1519 1520 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1521 { 1522 struct snd_soc_card *card = tplg->comp->card; 1523 int ret; 1524 1525 /* Card might not have been registered at this point. 1526 * If so, just return success. 1527 */ 1528 if (!snd_soc_card_is_instantiated(card)) { 1529 dev_warn(tplg->dev, "ASoC: Parent card not yet available, widget card binding deferred\n"); 1530 return 0; 1531 } 1532 1533 ret = snd_soc_dapm_new_widgets(card); 1534 if (ret < 0) 1535 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", ret); 1536 1537 return ret; 1538 } 1539 1540 static int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream, 1541 struct snd_soc_tplg_stream_caps *caps) 1542 { 1543 stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL); 1544 if (!stream->stream_name) 1545 return -ENOMEM; 1546 1547 stream->channels_min = le32_to_cpu(caps->channels_min); 1548 stream->channels_max = le32_to_cpu(caps->channels_max); 1549 stream->rates = le32_to_cpu(caps->rates); 1550 stream->rate_min = le32_to_cpu(caps->rate_min); 1551 stream->rate_max = le32_to_cpu(caps->rate_max); 1552 stream->formats = le64_to_cpu(caps->formats); 1553 stream->sig_bits = le32_to_cpu(caps->sig_bits); 1554 1555 return 0; 1556 } 1557 1558 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1559 unsigned int flag_mask, unsigned int flags) 1560 { 1561 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1562 dai_drv->symmetric_rate = 1563 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1564 1565 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1566 dai_drv->symmetric_channels = 1567 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) ? 1568 1 : 0; 1569 1570 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1571 dai_drv->symmetric_sample_bits = 1572 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1573 1 : 0; 1574 } 1575 1576 static const struct snd_soc_dai_ops tplg_dai_ops = { 1577 .compress_new = snd_soc_new_compress, 1578 }; 1579 1580 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1581 struct snd_soc_tplg_pcm *pcm) 1582 { 1583 struct snd_soc_dai_driver *dai_drv; 1584 struct snd_soc_pcm_stream *stream; 1585 struct snd_soc_tplg_stream_caps *caps; 1586 struct snd_soc_dai *dai; 1587 struct snd_soc_dapm_context *dapm = 1588 snd_soc_component_get_dapm(tplg->comp); 1589 int ret; 1590 1591 dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1592 if (dai_drv == NULL) 1593 return -ENOMEM; 1594 1595 if (strlen(pcm->dai_name)) { 1596 dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1597 if (!dai_drv->name) { 1598 ret = -ENOMEM; 1599 goto err; 1600 } 1601 } 1602 dai_drv->id = le32_to_cpu(pcm->dai_id); 1603 1604 if (pcm->playback) { 1605 stream = &dai_drv->playback; 1606 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1607 ret = set_stream_info(tplg, stream, caps); 1608 if (ret < 0) 1609 goto err; 1610 } 1611 1612 if (pcm->capture) { 1613 stream = &dai_drv->capture; 1614 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1615 ret = set_stream_info(tplg, stream, caps); 1616 if (ret < 0) 1617 goto err; 1618 } 1619 1620 if (pcm->compress) 1621 dai_drv->ops = &tplg_dai_ops; 1622 1623 /* pass control to component driver for optional further init */ 1624 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1625 if (ret < 0) { 1626 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 1627 goto err; 1628 } 1629 1630 dai_drv->dobj.index = tplg->index; 1631 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1632 if (tplg->ops) 1633 dai_drv->dobj.unload = tplg->ops->dai_unload; 1634 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1635 1636 /* register the DAI to the component */ 1637 dai = snd_soc_register_dai(tplg->comp, dai_drv, false); 1638 if (!dai) 1639 return -ENOMEM; 1640 1641 /* Create the DAI widgets here */ 1642 ret = snd_soc_dapm_new_dai_widgets(dapm, dai); 1643 if (ret != 0) { 1644 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret); 1645 snd_soc_unregister_dai(dai); 1646 return ret; 1647 } 1648 1649 return 0; 1650 1651 err: 1652 return ret; 1653 } 1654 1655 static void set_link_flags(struct snd_soc_dai_link *link, 1656 unsigned int flag_mask, unsigned int flags) 1657 { 1658 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1659 link->symmetric_rate = 1660 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1661 1662 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1663 link->symmetric_channels = 1664 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) ? 1665 1 : 0; 1666 1667 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1668 link->symmetric_sample_bits = 1669 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1670 1 : 0; 1671 1672 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1673 link->ignore_suspend = 1674 (flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) ? 1675 1 : 0; 1676 } 1677 1678 /* create the FE DAI link */ 1679 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1680 struct snd_soc_tplg_pcm *pcm) 1681 { 1682 struct snd_soc_dai_link *link; 1683 struct snd_soc_dai_link_component *dlc; 1684 int ret; 1685 1686 /* link + cpu + codec + platform */ 1687 link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1688 if (link == NULL) 1689 return -ENOMEM; 1690 1691 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1692 1693 link->cpus = &dlc[0]; 1694 link->num_cpus = 1; 1695 1696 link->dobj.index = tplg->index; 1697 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1698 if (tplg->ops) 1699 link->dobj.unload = tplg->ops->link_unload; 1700 1701 if (strlen(pcm->pcm_name)) { 1702 link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1703 link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1704 if (!link->name || !link->stream_name) { 1705 ret = -ENOMEM; 1706 goto err; 1707 } 1708 } 1709 link->id = le32_to_cpu(pcm->pcm_id); 1710 1711 if (strlen(pcm->dai_name)) { 1712 link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1713 if (!link->cpus->dai_name) { 1714 ret = -ENOMEM; 1715 goto err; 1716 } 1717 } 1718 1719 /* 1720 * Many topology are assuming link has Codec / Platform, and 1721 * these might be overwritten at soc_tplg_dai_link_load(). 1722 * Don't use &asoc_dummy_dlc here. 1723 */ 1724 link->codecs = &dlc[1]; /* Don't use &asoc_dummy_dlc here */ 1725 link->codecs->name = "snd-soc-dummy"; 1726 link->codecs->dai_name = "snd-soc-dummy-dai"; 1727 link->num_codecs = 1; 1728 1729 link->platforms = &dlc[2]; /* Don't use &asoc_dummy_dlc here */ 1730 link->platforms->name = "snd-soc-dummy"; 1731 link->num_platforms = 1; 1732 1733 /* enable DPCM */ 1734 link->dynamic = 1; 1735 link->ignore_pmdown_time = 1; 1736 link->dpcm_playback = le32_to_cpu(pcm->playback); 1737 link->dpcm_capture = le32_to_cpu(pcm->capture); 1738 if (pcm->flag_mask) 1739 set_link_flags(link, 1740 le32_to_cpu(pcm->flag_mask), 1741 le32_to_cpu(pcm->flags)); 1742 1743 /* pass control to component driver for optional further init */ 1744 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1745 if (ret < 0) { 1746 dev_err(tplg->dev, "ASoC: FE link loading failed\n"); 1747 goto err; 1748 } 1749 1750 ret = snd_soc_add_pcm_runtimes(tplg->comp->card, link, 1); 1751 if (ret < 0) { 1752 if (ret != -EPROBE_DEFER) 1753 dev_err(tplg->dev, "ASoC: adding FE link failed\n"); 1754 goto err; 1755 } 1756 1757 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1758 1759 return 0; 1760 err: 1761 return ret; 1762 } 1763 1764 /* create a FE DAI and DAI link from the PCM object */ 1765 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1766 struct snd_soc_tplg_pcm *pcm) 1767 { 1768 int ret; 1769 1770 ret = soc_tplg_dai_create(tplg, pcm); 1771 if (ret < 0) 1772 return ret; 1773 1774 return soc_tplg_fe_link_create(tplg, pcm); 1775 } 1776 1777 /* copy stream caps from the old version 4 of source */ 1778 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 1779 struct snd_soc_tplg_stream_caps_v4 *src) 1780 { 1781 dest->size = cpu_to_le32(sizeof(*dest)); 1782 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1783 dest->formats = src->formats; 1784 dest->rates = src->rates; 1785 dest->rate_min = src->rate_min; 1786 dest->rate_max = src->rate_max; 1787 dest->channels_min = src->channels_min; 1788 dest->channels_max = src->channels_max; 1789 dest->periods_min = src->periods_min; 1790 dest->periods_max = src->periods_max; 1791 dest->period_size_min = src->period_size_min; 1792 dest->period_size_max = src->period_size_max; 1793 dest->buffer_size_min = src->buffer_size_min; 1794 dest->buffer_size_max = src->buffer_size_max; 1795 } 1796 1797 /** 1798 * pcm_new_ver - Create the new version of PCM from the old version. 1799 * @tplg: topology context 1800 * @src: older version of pcm as a source 1801 * @pcm: latest version of pcm created from the source 1802 * 1803 * Support from version 4. User should free the returned pcm manually. 1804 */ 1805 static int pcm_new_ver(struct soc_tplg *tplg, 1806 struct snd_soc_tplg_pcm *src, 1807 struct snd_soc_tplg_pcm **pcm) 1808 { 1809 struct snd_soc_tplg_pcm *dest; 1810 struct snd_soc_tplg_pcm_v4 *src_v4; 1811 int i; 1812 1813 *pcm = NULL; 1814 1815 if (le32_to_cpu(src->size) != sizeof(*src_v4)) { 1816 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 1817 return -EINVAL; 1818 } 1819 1820 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 1821 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 1822 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1823 if (!dest) 1824 return -ENOMEM; 1825 1826 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 1827 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1828 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1829 dest->pcm_id = src_v4->pcm_id; 1830 dest->dai_id = src_v4->dai_id; 1831 dest->playback = src_v4->playback; 1832 dest->capture = src_v4->capture; 1833 dest->compress = src_v4->compress; 1834 dest->num_streams = src_v4->num_streams; 1835 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 1836 memcpy(&dest->stream[i], &src_v4->stream[i], 1837 sizeof(struct snd_soc_tplg_stream)); 1838 1839 for (i = 0; i < 2; i++) 1840 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 1841 1842 *pcm = dest; 1843 return 0; 1844 } 1845 1846 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1847 struct snd_soc_tplg_hdr *hdr) 1848 { 1849 struct snd_soc_tplg_pcm *pcm, *_pcm; 1850 int count; 1851 int size; 1852 int i; 1853 bool abi_match; 1854 int ret; 1855 1856 count = le32_to_cpu(hdr->count); 1857 1858 /* check the element size and count */ 1859 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1860 size = le32_to_cpu(pcm->size); 1861 if (size > sizeof(struct snd_soc_tplg_pcm) 1862 || size < sizeof(struct snd_soc_tplg_pcm_v4)) { 1863 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1864 size); 1865 return -EINVAL; 1866 } 1867 1868 if (soc_tplg_check_elem_count(tplg, 1869 size, count, 1870 le32_to_cpu(hdr->payload_size), 1871 "PCM DAI")) 1872 return -EINVAL; 1873 1874 for (i = 0; i < count; i++) { 1875 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1876 size = le32_to_cpu(pcm->size); 1877 1878 /* check ABI version by size, create a new version of pcm 1879 * if abi not match. 1880 */ 1881 if (size == sizeof(*pcm)) { 1882 abi_match = true; 1883 _pcm = pcm; 1884 } else { 1885 abi_match = false; 1886 ret = pcm_new_ver(tplg, pcm, &_pcm); 1887 if (ret < 0) 1888 return ret; 1889 } 1890 1891 /* create the FE DAIs and DAI links */ 1892 ret = soc_tplg_pcm_create(tplg, _pcm); 1893 if (ret < 0) { 1894 if (!abi_match) 1895 kfree(_pcm); 1896 return ret; 1897 } 1898 1899 /* offset by version-specific struct size and 1900 * real priv data size 1901 */ 1902 tplg->pos += size + le32_to_cpu(_pcm->priv.size); 1903 1904 if (!abi_match) 1905 kfree(_pcm); /* free the duplicated one */ 1906 } 1907 1908 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1909 1910 return 0; 1911 } 1912 1913 /** 1914 * set_link_hw_format - Set the HW audio format of the physical DAI link. 1915 * @link: &snd_soc_dai_link which should be updated 1916 * @cfg: physical link configs. 1917 * 1918 * Topology context contains a list of supported HW formats (configs) and 1919 * a default format ID for the physical link. This function will use this 1920 * default ID to choose the HW format to set the link's DAI format for init. 1921 */ 1922 static void set_link_hw_format(struct snd_soc_dai_link *link, 1923 struct snd_soc_tplg_link_config *cfg) 1924 { 1925 struct snd_soc_tplg_hw_config *hw_config; 1926 unsigned char bclk_provider, fsync_provider; 1927 unsigned char invert_bclk, invert_fsync; 1928 int i; 1929 1930 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 1931 hw_config = &cfg->hw_config[i]; 1932 if (hw_config->id != cfg->default_hw_config_id) 1933 continue; 1934 1935 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 1936 SND_SOC_DAIFMT_FORMAT_MASK; 1937 1938 /* clock gating */ 1939 switch (hw_config->clock_gated) { 1940 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 1941 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 1942 break; 1943 1944 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 1945 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 1946 break; 1947 1948 default: 1949 /* ignore the value */ 1950 break; 1951 } 1952 1953 /* clock signal polarity */ 1954 invert_bclk = hw_config->invert_bclk; 1955 invert_fsync = hw_config->invert_fsync; 1956 if (!invert_bclk && !invert_fsync) 1957 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 1958 else if (!invert_bclk && invert_fsync) 1959 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 1960 else if (invert_bclk && !invert_fsync) 1961 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 1962 else 1963 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 1964 1965 /* clock masters */ 1966 bclk_provider = (hw_config->bclk_provider == 1967 SND_SOC_TPLG_BCLK_CP); 1968 fsync_provider = (hw_config->fsync_provider == 1969 SND_SOC_TPLG_FSYNC_CP); 1970 if (bclk_provider && fsync_provider) 1971 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 1972 else if (!bclk_provider && fsync_provider) 1973 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFP; 1974 else if (bclk_provider && !fsync_provider) 1975 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFC; 1976 else 1977 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC; 1978 } 1979 } 1980 1981 /** 1982 * link_new_ver - Create a new physical link config from the old 1983 * version of source. 1984 * @tplg: topology context 1985 * @src: old version of phyical link config as a source 1986 * @link: latest version of physical link config created from the source 1987 * 1988 * Support from version 4. User need free the returned link config manually. 1989 */ 1990 static int link_new_ver(struct soc_tplg *tplg, 1991 struct snd_soc_tplg_link_config *src, 1992 struct snd_soc_tplg_link_config **link) 1993 { 1994 struct snd_soc_tplg_link_config *dest; 1995 struct snd_soc_tplg_link_config_v4 *src_v4; 1996 int i; 1997 1998 *link = NULL; 1999 2000 if (le32_to_cpu(src->size) != 2001 sizeof(struct snd_soc_tplg_link_config_v4)) { 2002 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2003 return -EINVAL; 2004 } 2005 2006 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2007 2008 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2009 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2010 if (!dest) 2011 return -ENOMEM; 2012 2013 dest->size = cpu_to_le32(sizeof(*dest)); 2014 dest->id = src_v4->id; 2015 dest->num_streams = src_v4->num_streams; 2016 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2017 memcpy(&dest->stream[i], &src_v4->stream[i], 2018 sizeof(struct snd_soc_tplg_stream)); 2019 2020 *link = dest; 2021 return 0; 2022 } 2023 2024 /** 2025 * snd_soc_find_dai_link - Find a DAI link 2026 * 2027 * @card: soc card 2028 * @id: DAI link ID to match 2029 * @name: DAI link name to match, optional 2030 * @stream_name: DAI link stream name to match, optional 2031 * 2032 * This function will search all existing DAI links of the soc card to 2033 * find the link of the same ID. Since DAI links may not have their 2034 * unique ID, so name and stream name should also match if being 2035 * specified. 2036 * 2037 * Return: pointer of DAI link, or NULL if not found. 2038 */ 2039 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, 2040 int id, const char *name, 2041 const char *stream_name) 2042 { 2043 struct snd_soc_pcm_runtime *rtd; 2044 2045 for_each_card_rtds(card, rtd) { 2046 struct snd_soc_dai_link *link = rtd->dai_link; 2047 2048 if (link->id != id) 2049 continue; 2050 2051 if (name && (!link->name || !strstr(link->name, name))) 2052 continue; 2053 2054 if (stream_name && (!link->stream_name || 2055 !strstr(link->stream_name, stream_name))) 2056 continue; 2057 2058 return link; 2059 } 2060 2061 return NULL; 2062 } 2063 2064 /* Find and configure an existing physical DAI link */ 2065 static int soc_tplg_link_config(struct soc_tplg *tplg, 2066 struct snd_soc_tplg_link_config *cfg) 2067 { 2068 struct snd_soc_dai_link *link; 2069 const char *name, *stream_name; 2070 size_t len; 2071 int ret; 2072 2073 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2074 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2075 return -EINVAL; 2076 else if (len) 2077 name = cfg->name; 2078 else 2079 name = NULL; 2080 2081 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2082 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2083 return -EINVAL; 2084 else if (len) 2085 stream_name = cfg->stream_name; 2086 else 2087 stream_name = NULL; 2088 2089 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 2090 name, stream_name); 2091 if (!link) { 2092 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2093 name, cfg->id); 2094 return -EINVAL; 2095 } 2096 2097 /* hw format */ 2098 if (cfg->num_hw_configs) 2099 set_link_hw_format(link, cfg); 2100 2101 /* flags */ 2102 if (cfg->flag_mask) 2103 set_link_flags(link, 2104 le32_to_cpu(cfg->flag_mask), 2105 le32_to_cpu(cfg->flags)); 2106 2107 /* pass control to component driver for optional further init */ 2108 ret = soc_tplg_dai_link_load(tplg, link, cfg); 2109 if (ret < 0) { 2110 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2111 return ret; 2112 } 2113 2114 /* for unloading it in snd_soc_tplg_component_remove */ 2115 link->dobj.index = tplg->index; 2116 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 2117 if (tplg->ops) 2118 link->dobj.unload = tplg->ops->link_unload; 2119 list_add(&link->dobj.list, &tplg->comp->dobj_list); 2120 2121 return 0; 2122 } 2123 2124 2125 /* Load physical link config elements from the topology context */ 2126 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2127 struct snd_soc_tplg_hdr *hdr) 2128 { 2129 struct snd_soc_tplg_link_config *link, *_link; 2130 int count; 2131 int size; 2132 int i, ret; 2133 bool abi_match; 2134 2135 count = le32_to_cpu(hdr->count); 2136 2137 /* check the element size and count */ 2138 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2139 size = le32_to_cpu(link->size); 2140 if (size > sizeof(struct snd_soc_tplg_link_config) 2141 || size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2142 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2143 size); 2144 return -EINVAL; 2145 } 2146 2147 if (soc_tplg_check_elem_count(tplg, size, count, 2148 le32_to_cpu(hdr->payload_size), 2149 "physical link config")) 2150 return -EINVAL; 2151 2152 /* config physical DAI links */ 2153 for (i = 0; i < count; i++) { 2154 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2155 size = le32_to_cpu(link->size); 2156 if (size == sizeof(*link)) { 2157 abi_match = true; 2158 _link = link; 2159 } else { 2160 abi_match = false; 2161 ret = link_new_ver(tplg, link, &_link); 2162 if (ret < 0) 2163 return ret; 2164 } 2165 2166 ret = soc_tplg_link_config(tplg, _link); 2167 if (ret < 0) { 2168 if (!abi_match) 2169 kfree(_link); 2170 return ret; 2171 } 2172 2173 /* offset by version-specific struct size and 2174 * real priv data size 2175 */ 2176 tplg->pos += size + le32_to_cpu(_link->priv.size); 2177 2178 if (!abi_match) 2179 kfree(_link); /* free the duplicated one */ 2180 } 2181 2182 return 0; 2183 } 2184 2185 /** 2186 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2187 * @tplg: topology context 2188 * @d: physical DAI configs. 2189 * 2190 * The physical dai should already be registered by the platform driver. 2191 * The platform driver should specify the DAI name and ID for matching. 2192 */ 2193 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2194 struct snd_soc_tplg_dai *d) 2195 { 2196 struct snd_soc_dai_link_component dai_component; 2197 struct snd_soc_dai *dai; 2198 struct snd_soc_dai_driver *dai_drv; 2199 struct snd_soc_pcm_stream *stream; 2200 struct snd_soc_tplg_stream_caps *caps; 2201 int ret; 2202 2203 memset(&dai_component, 0, sizeof(dai_component)); 2204 2205 dai_component.dai_name = d->dai_name; 2206 dai = snd_soc_find_dai(&dai_component); 2207 if (!dai) { 2208 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2209 d->dai_name); 2210 return -EINVAL; 2211 } 2212 2213 if (le32_to_cpu(d->dai_id) != dai->id) { 2214 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2215 d->dai_name); 2216 return -EINVAL; 2217 } 2218 2219 dai_drv = dai->driver; 2220 if (!dai_drv) 2221 return -EINVAL; 2222 2223 if (d->playback) { 2224 stream = &dai_drv->playback; 2225 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2226 ret = set_stream_info(tplg, stream, caps); 2227 if (ret < 0) 2228 goto err; 2229 } 2230 2231 if (d->capture) { 2232 stream = &dai_drv->capture; 2233 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2234 ret = set_stream_info(tplg, stream, caps); 2235 if (ret < 0) 2236 goto err; 2237 } 2238 2239 if (d->flag_mask) 2240 set_dai_flags(dai_drv, 2241 le32_to_cpu(d->flag_mask), 2242 le32_to_cpu(d->flags)); 2243 2244 /* pass control to component driver for optional further init */ 2245 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2246 if (ret < 0) { 2247 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 2248 goto err; 2249 } 2250 2251 return 0; 2252 2253 err: 2254 return ret; 2255 } 2256 2257 /* load physical DAI elements */ 2258 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2259 struct snd_soc_tplg_hdr *hdr) 2260 { 2261 int count; 2262 int i; 2263 2264 count = le32_to_cpu(hdr->count); 2265 2266 /* config the existing BE DAIs */ 2267 for (i = 0; i < count; i++) { 2268 struct snd_soc_tplg_dai *dai = (struct snd_soc_tplg_dai *)tplg->pos; 2269 int ret; 2270 2271 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 2272 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2273 return -EINVAL; 2274 } 2275 2276 ret = soc_tplg_dai_config(tplg, dai); 2277 if (ret < 0) { 2278 dev_err(tplg->dev, "ASoC: failed to configure DAI\n"); 2279 return ret; 2280 } 2281 2282 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 2283 } 2284 2285 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2286 return 0; 2287 } 2288 2289 /** 2290 * manifest_new_ver - Create a new version of manifest from the old version 2291 * of source. 2292 * @tplg: topology context 2293 * @src: old version of manifest as a source 2294 * @manifest: latest version of manifest created from the source 2295 * 2296 * Support from version 4. Users need free the returned manifest manually. 2297 */ 2298 static int manifest_new_ver(struct soc_tplg *tplg, 2299 struct snd_soc_tplg_manifest *src, 2300 struct snd_soc_tplg_manifest **manifest) 2301 { 2302 struct snd_soc_tplg_manifest *dest; 2303 struct snd_soc_tplg_manifest_v4 *src_v4; 2304 int size; 2305 2306 *manifest = NULL; 2307 2308 size = le32_to_cpu(src->size); 2309 if (size != sizeof(*src_v4)) { 2310 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", 2311 size); 2312 if (size) 2313 return -EINVAL; 2314 src->size = cpu_to_le32(sizeof(*src_v4)); 2315 } 2316 2317 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2318 2319 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2320 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size), 2321 GFP_KERNEL); 2322 if (!dest) 2323 return -ENOMEM; 2324 2325 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2326 dest->control_elems = src_v4->control_elems; 2327 dest->widget_elems = src_v4->widget_elems; 2328 dest->graph_elems = src_v4->graph_elems; 2329 dest->pcm_elems = src_v4->pcm_elems; 2330 dest->dai_link_elems = src_v4->dai_link_elems; 2331 dest->priv.size = src_v4->priv.size; 2332 if (dest->priv.size) 2333 memcpy(dest->priv.data, src_v4->priv.data, 2334 le32_to_cpu(src_v4->priv.size)); 2335 2336 *manifest = dest; 2337 return 0; 2338 } 2339 2340 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2341 struct snd_soc_tplg_hdr *hdr) 2342 { 2343 struct snd_soc_tplg_manifest *manifest, *_manifest; 2344 bool abi_match; 2345 int ret = 0; 2346 2347 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2348 2349 /* check ABI version by size, create a new manifest if abi not match */ 2350 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) { 2351 abi_match = true; 2352 _manifest = manifest; 2353 } else { 2354 abi_match = false; 2355 2356 ret = manifest_new_ver(tplg, manifest, &_manifest); 2357 if (ret < 0) 2358 return ret; 2359 } 2360 2361 /* pass control to component driver for optional further init */ 2362 if (tplg->ops && tplg->ops->manifest) 2363 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest); 2364 2365 if (!abi_match) /* free the duplicated one */ 2366 kfree(_manifest); 2367 2368 return ret; 2369 } 2370 2371 /* validate header magic, size and type */ 2372 static int soc_tplg_valid_header(struct soc_tplg *tplg, 2373 struct snd_soc_tplg_hdr *hdr) 2374 { 2375 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 2376 dev_err(tplg->dev, 2377 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2378 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2379 tplg->fw->size); 2380 return -EINVAL; 2381 } 2382 2383 if (soc_tplg_get_hdr_offset(tplg) + le32_to_cpu(hdr->payload_size) >= tplg->fw->size) { 2384 dev_err(tplg->dev, 2385 "ASoC: invalid header of type %d at offset %ld payload_size %d\n", 2386 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2387 hdr->payload_size); 2388 return -EINVAL; 2389 } 2390 2391 /* big endian firmware objects not supported atm */ 2392 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) { 2393 dev_err(tplg->dev, 2394 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2395 tplg->pass, hdr->magic, 2396 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2397 return -EINVAL; 2398 } 2399 2400 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2401 dev_err(tplg->dev, 2402 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2403 tplg->pass, hdr->magic, 2404 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2405 return -EINVAL; 2406 } 2407 2408 /* Support ABI from version 4 */ 2409 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2410 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2411 dev_err(tplg->dev, 2412 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2413 tplg->pass, hdr->abi, 2414 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2415 tplg->fw->size); 2416 return -EINVAL; 2417 } 2418 2419 if (hdr->payload_size == 0) { 2420 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2421 soc_tplg_get_hdr_offset(tplg)); 2422 return -EINVAL; 2423 } 2424 2425 return 0; 2426 } 2427 2428 /* check header type and call appropriate handler */ 2429 static int soc_tplg_load_header(struct soc_tplg *tplg, 2430 struct snd_soc_tplg_hdr *hdr) 2431 { 2432 int (*elem_load)(struct soc_tplg *tplg, 2433 struct snd_soc_tplg_hdr *hdr); 2434 unsigned int hdr_pass; 2435 2436 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2437 2438 tplg->index = le32_to_cpu(hdr->index); 2439 2440 switch (le32_to_cpu(hdr->type)) { 2441 case SND_SOC_TPLG_TYPE_MIXER: 2442 case SND_SOC_TPLG_TYPE_ENUM: 2443 case SND_SOC_TPLG_TYPE_BYTES: 2444 hdr_pass = SOC_TPLG_PASS_CONTROL; 2445 elem_load = soc_tplg_kcontrol_elems_load; 2446 break; 2447 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2448 hdr_pass = SOC_TPLG_PASS_GRAPH; 2449 elem_load = soc_tplg_dapm_graph_elems_load; 2450 break; 2451 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2452 hdr_pass = SOC_TPLG_PASS_WIDGET; 2453 elem_load = soc_tplg_dapm_widget_elems_load; 2454 break; 2455 case SND_SOC_TPLG_TYPE_PCM: 2456 hdr_pass = SOC_TPLG_PASS_PCM_DAI; 2457 elem_load = soc_tplg_pcm_elems_load; 2458 break; 2459 case SND_SOC_TPLG_TYPE_DAI: 2460 hdr_pass = SOC_TPLG_PASS_BE_DAI; 2461 elem_load = soc_tplg_dai_elems_load; 2462 break; 2463 case SND_SOC_TPLG_TYPE_DAI_LINK: 2464 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2465 /* physical link configurations */ 2466 hdr_pass = SOC_TPLG_PASS_LINK; 2467 elem_load = soc_tplg_link_elems_load; 2468 break; 2469 case SND_SOC_TPLG_TYPE_MANIFEST: 2470 hdr_pass = SOC_TPLG_PASS_MANIFEST; 2471 elem_load = soc_tplg_manifest_load; 2472 break; 2473 default: 2474 /* bespoke vendor data object */ 2475 hdr_pass = SOC_TPLG_PASS_VENDOR; 2476 elem_load = soc_tplg_vendor_load; 2477 break; 2478 } 2479 2480 if (tplg->pass == hdr_pass) { 2481 dev_dbg(tplg->dev, 2482 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2483 hdr->payload_size, hdr->type, hdr->version, 2484 hdr->vendor_type, tplg->pass); 2485 return elem_load(tplg, hdr); 2486 } 2487 2488 return 0; 2489 } 2490 2491 /* process the topology file headers */ 2492 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2493 { 2494 int ret; 2495 2496 /* process the header types from start to end */ 2497 for (tplg->pass = SOC_TPLG_PASS_START; tplg->pass <= SOC_TPLG_PASS_END; tplg->pass++) { 2498 struct snd_soc_tplg_hdr *hdr; 2499 2500 tplg->hdr_pos = tplg->fw->data; 2501 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2502 2503 while (!soc_tplg_is_eof(tplg)) { 2504 2505 /* make sure header is valid before loading */ 2506 ret = soc_tplg_valid_header(tplg, hdr); 2507 if (ret < 0) 2508 return ret; 2509 2510 /* load the header object */ 2511 ret = soc_tplg_load_header(tplg, hdr); 2512 if (ret < 0) { 2513 if (ret != -EPROBE_DEFER) { 2514 dev_err(tplg->dev, 2515 "ASoC: topology: could not load header: %d\n", 2516 ret); 2517 } 2518 return ret; 2519 } 2520 2521 /* goto next header */ 2522 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2523 sizeof(struct snd_soc_tplg_hdr); 2524 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2525 } 2526 2527 } 2528 2529 /* signal DAPM we are complete */ 2530 ret = soc_tplg_dapm_complete(tplg); 2531 2532 return ret; 2533 } 2534 2535 static int soc_tplg_load(struct soc_tplg *tplg) 2536 { 2537 int ret; 2538 2539 ret = soc_tplg_process_headers(tplg); 2540 if (ret == 0) 2541 return soc_tplg_complete(tplg); 2542 2543 return ret; 2544 } 2545 2546 /* load audio component topology from "firmware" file */ 2547 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2548 struct snd_soc_tplg_ops *ops, const struct firmware *fw) 2549 { 2550 struct soc_tplg tplg; 2551 int ret; 2552 2553 /* 2554 * check if we have sane parameters: 2555 * comp - needs to exist to keep and reference data while parsing 2556 * comp->card - used for setting card related parameters 2557 * comp->card->dev - used for resource management and prints 2558 * fw - we need it, as it is the very thing we parse 2559 */ 2560 if (!comp || !comp->card || !comp->card->dev || !fw) 2561 return -EINVAL; 2562 2563 /* setup parsing context */ 2564 memset(&tplg, 0, sizeof(tplg)); 2565 tplg.fw = fw; 2566 tplg.dev = comp->card->dev; 2567 tplg.comp = comp; 2568 if (ops) { 2569 tplg.ops = ops; 2570 tplg.io_ops = ops->io_ops; 2571 tplg.io_ops_count = ops->io_ops_count; 2572 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2573 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2574 } 2575 2576 ret = soc_tplg_load(&tplg); 2577 /* free the created components if fail to load topology */ 2578 if (ret) 2579 snd_soc_tplg_component_remove(comp); 2580 2581 return ret; 2582 } 2583 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2584 2585 /* remove dynamic controls from the component driver */ 2586 int snd_soc_tplg_component_remove(struct snd_soc_component *comp) 2587 { 2588 struct snd_soc_dobj *dobj, *next_dobj; 2589 int pass; 2590 2591 /* process the header types from end to start */ 2592 for (pass = SOC_TPLG_PASS_END; pass >= SOC_TPLG_PASS_START; pass--) { 2593 2594 /* remove mixer controls */ 2595 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2596 list) { 2597 2598 switch (dobj->type) { 2599 case SND_SOC_DOBJ_BYTES: 2600 case SND_SOC_DOBJ_ENUM: 2601 case SND_SOC_DOBJ_MIXER: 2602 soc_tplg_remove_kcontrol(comp, dobj, pass); 2603 break; 2604 case SND_SOC_DOBJ_GRAPH: 2605 soc_tplg_remove_route(comp, dobj, pass); 2606 break; 2607 case SND_SOC_DOBJ_WIDGET: 2608 soc_tplg_remove_widget(comp, dobj, pass); 2609 break; 2610 case SND_SOC_DOBJ_PCM: 2611 soc_tplg_remove_dai(comp, dobj, pass); 2612 break; 2613 case SND_SOC_DOBJ_DAI_LINK: 2614 soc_tplg_remove_link(comp, dobj, pass); 2615 break; 2616 case SND_SOC_DOBJ_BACKEND_LINK: 2617 /* 2618 * call link_unload ops if extra 2619 * deinitialization is needed. 2620 */ 2621 remove_backend_link(comp, dobj, pass); 2622 break; 2623 default: 2624 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2625 dobj->type); 2626 break; 2627 } 2628 } 2629 } 2630 2631 /* let caller know if FW can be freed when no objects are left */ 2632 return !list_empty(&comp->dobj_list); 2633 } 2634 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2635