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 se->items = le32_to_cpu(ec->items); 855 se->values = (const unsigned int *)se->dobj.control.dvalues; 856 return 0; 857 } 858 859 static int soc_tplg_denum_create(struct soc_tplg *tplg, size_t size) 860 { 861 struct snd_soc_tplg_enum_control *ec; 862 struct soc_enum *se; 863 struct snd_kcontrol_new kc; 864 int ret = 0; 865 866 if (soc_tplg_check_elem_count(tplg, 867 sizeof(struct snd_soc_tplg_enum_control), 868 1, size, "enums")) 869 return -EINVAL; 870 871 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 872 873 /* validate kcontrol */ 874 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 875 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 876 return -EINVAL; 877 878 se = devm_kzalloc(tplg->dev, (sizeof(*se)), GFP_KERNEL); 879 if (se == NULL) 880 return -ENOMEM; 881 882 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 883 le32_to_cpu(ec->priv.size)); 884 885 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", 886 ec->hdr.name, ec->items); 887 888 memset(&kc, 0, sizeof(kc)); 889 kc.name = ec->hdr.name; 890 kc.private_value = (long)se; 891 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 892 kc.access = le32_to_cpu(ec->hdr.access); 893 894 se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 895 se->shift_l = tplg_chan_get_shift(tplg, ec->channel, 896 SNDRV_CHMAP_FL); 897 se->shift_r = tplg_chan_get_shift(tplg, ec->channel, 898 SNDRV_CHMAP_FL); 899 900 se->mask = le32_to_cpu(ec->mask); 901 se->dobj.index = tplg->index; 902 se->dobj.type = SND_SOC_DOBJ_ENUM; 903 if (tplg->ops) 904 se->dobj.unload = tplg->ops->control_unload; 905 INIT_LIST_HEAD(&se->dobj.list); 906 907 switch (le32_to_cpu(ec->hdr.ops.info)) { 908 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 909 case SND_SOC_TPLG_CTL_ENUM_VALUE: 910 ret = soc_tplg_denum_create_values(tplg, se, ec); 911 if (ret < 0) { 912 dev_err(tplg->dev, 913 "ASoC: could not create values for %s\n", 914 ec->hdr.name); 915 goto err; 916 } 917 fallthrough; 918 case SND_SOC_TPLG_CTL_ENUM: 919 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 920 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 921 ret = soc_tplg_denum_create_texts(tplg, se, ec); 922 if (ret < 0) { 923 dev_err(tplg->dev, 924 "ASoC: could not create texts for %s\n", 925 ec->hdr.name); 926 goto err; 927 } 928 break; 929 default: 930 ret = -EINVAL; 931 dev_err(tplg->dev, 932 "ASoC: invalid enum control type %d for %s\n", 933 ec->hdr.ops.info, ec->hdr.name); 934 goto err; 935 } 936 937 /* map io handlers */ 938 ret = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg); 939 if (ret) { 940 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 941 goto err; 942 } 943 944 /* pass control to driver for optional further init */ 945 ret = soc_tplg_control_load(tplg, &kc, &ec->hdr); 946 if (ret < 0) 947 goto err; 948 949 /* register control here */ 950 ret = soc_tplg_add_kcontrol(tplg, &kc, &se->dobj.control.kcontrol); 951 if (ret < 0) 952 goto err; 953 954 list_add(&se->dobj.list, &tplg->comp->dobj_list); 955 956 err: 957 return ret; 958 } 959 960 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 961 struct snd_soc_tplg_hdr *hdr) 962 { 963 int ret; 964 int i; 965 966 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 967 soc_tplg_get_offset(tplg)); 968 969 for (i = 0; i < le32_to_cpu(hdr->count); i++) { 970 struct snd_soc_tplg_ctl_hdr *control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 971 972 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) { 973 dev_err(tplg->dev, "ASoC: invalid control size\n"); 974 return -EINVAL; 975 } 976 977 switch (le32_to_cpu(control_hdr->ops.info)) { 978 case SND_SOC_TPLG_CTL_VOLSW: 979 case SND_SOC_TPLG_CTL_STROBE: 980 case SND_SOC_TPLG_CTL_VOLSW_SX: 981 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 982 case SND_SOC_TPLG_CTL_RANGE: 983 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 984 case SND_SOC_TPLG_DAPM_CTL_PIN: 985 ret = soc_tplg_dmixer_create(tplg, le32_to_cpu(hdr->payload_size)); 986 break; 987 case SND_SOC_TPLG_CTL_ENUM: 988 case SND_SOC_TPLG_CTL_ENUM_VALUE: 989 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 990 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 991 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 992 ret = soc_tplg_denum_create(tplg, le32_to_cpu(hdr->payload_size)); 993 break; 994 case SND_SOC_TPLG_CTL_BYTES: 995 ret = soc_tplg_dbytes_create(tplg, le32_to_cpu(hdr->payload_size)); 996 break; 997 default: 998 soc_bind_err(tplg, control_hdr, i); 999 return -EINVAL; 1000 } 1001 if (ret < 0) { 1002 dev_err(tplg->dev, "ASoC: invalid control\n"); 1003 return ret; 1004 } 1005 1006 } 1007 1008 return 0; 1009 } 1010 1011 /* optionally pass new dynamic kcontrol to component driver. */ 1012 static int soc_tplg_add_route(struct soc_tplg *tplg, 1013 struct snd_soc_dapm_route *route) 1014 { 1015 if (tplg->ops && tplg->ops->dapm_route_load) 1016 return tplg->ops->dapm_route_load(tplg->comp, tplg->index, 1017 route); 1018 1019 return 0; 1020 } 1021 1022 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1023 struct snd_soc_tplg_hdr *hdr) 1024 { 1025 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1026 const size_t maxlen = SNDRV_CTL_ELEM_ID_NAME_MAXLEN; 1027 struct snd_soc_tplg_dapm_graph_elem *elem; 1028 struct snd_soc_dapm_route *route; 1029 int count, i; 1030 int ret = 0; 1031 1032 count = le32_to_cpu(hdr->count); 1033 1034 if (soc_tplg_check_elem_count(tplg, 1035 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1036 count, le32_to_cpu(hdr->payload_size), "graph")) 1037 return -EINVAL; 1038 1039 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, 1040 hdr->index); 1041 1042 for (i = 0; i < count; i++) { 1043 route = devm_kzalloc(tplg->dev, sizeof(*route), GFP_KERNEL); 1044 if (!route) 1045 return -ENOMEM; 1046 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1047 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1048 1049 /* validate routes */ 1050 if ((strnlen(elem->source, maxlen) == maxlen) || 1051 (strnlen(elem->sink, maxlen) == maxlen) || 1052 (strnlen(elem->control, maxlen) == maxlen)) { 1053 ret = -EINVAL; 1054 break; 1055 } 1056 1057 route->source = devm_kstrdup(tplg->dev, elem->source, GFP_KERNEL); 1058 route->sink = devm_kstrdup(tplg->dev, elem->sink, GFP_KERNEL); 1059 if (!route->source || !route->sink) { 1060 ret = -ENOMEM; 1061 break; 1062 } 1063 1064 if (strnlen(elem->control, maxlen) != 0) { 1065 route->control = devm_kstrdup(tplg->dev, elem->control, GFP_KERNEL); 1066 if (!route->control) { 1067 ret = -ENOMEM; 1068 break; 1069 } 1070 } 1071 1072 /* add route dobj to dobj_list */ 1073 route->dobj.type = SND_SOC_DOBJ_GRAPH; 1074 if (tplg->ops) 1075 route->dobj.unload = tplg->ops->dapm_route_unload; 1076 route->dobj.index = tplg->index; 1077 list_add(&route->dobj.list, &tplg->comp->dobj_list); 1078 1079 ret = soc_tplg_add_route(tplg, route); 1080 if (ret < 0) { 1081 dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret); 1082 break; 1083 } 1084 1085 /* add route, but keep going if some fail */ 1086 snd_soc_dapm_add_routes(dapm, route, 1); 1087 } 1088 1089 return ret; 1090 } 1091 1092 static int soc_tplg_dapm_widget_dmixer_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1093 { 1094 struct soc_mixer_control *sm; 1095 struct snd_soc_tplg_mixer_control *mc; 1096 int err; 1097 1098 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1099 1100 /* validate kcontrol */ 1101 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1102 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1103 return -EINVAL; 1104 1105 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL); 1106 if (!sm) 1107 return -ENOMEM; 1108 1109 tplg->pos += sizeof(struct snd_soc_tplg_mixer_control) + 1110 le32_to_cpu(mc->priv.size); 1111 1112 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s\n", 1113 mc->hdr.name); 1114 1115 kc->private_value = (long)sm; 1116 kc->name = devm_kstrdup(tplg->dev, mc->hdr.name, GFP_KERNEL); 1117 if (!kc->name) 1118 return -ENOMEM; 1119 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1120 kc->access = le32_to_cpu(mc->hdr.access); 1121 1122 /* we only support FL/FR channel mapping atm */ 1123 sm->reg = tplg_chan_get_reg(tplg, mc->channel, 1124 SNDRV_CHMAP_FL); 1125 sm->rreg = tplg_chan_get_reg(tplg, mc->channel, 1126 SNDRV_CHMAP_FR); 1127 sm->shift = tplg_chan_get_shift(tplg, mc->channel, 1128 SNDRV_CHMAP_FL); 1129 sm->rshift = tplg_chan_get_shift(tplg, mc->channel, 1130 SNDRV_CHMAP_FR); 1131 1132 sm->max = le32_to_cpu(mc->max); 1133 sm->min = le32_to_cpu(mc->min); 1134 sm->invert = le32_to_cpu(mc->invert); 1135 sm->platform_max = le32_to_cpu(mc->platform_max); 1136 sm->dobj.index = tplg->index; 1137 INIT_LIST_HEAD(&sm->dobj.list); 1138 1139 /* map io handlers */ 1140 err = soc_tplg_kcontrol_bind_io(&mc->hdr, kc, tplg); 1141 if (err) { 1142 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1143 return err; 1144 } 1145 1146 /* create any TLV data */ 1147 err = soc_tplg_create_tlv(tplg, kc, &mc->hdr); 1148 if (err < 0) { 1149 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 1150 mc->hdr.name); 1151 return err; 1152 } 1153 1154 /* pass control to driver for optional further init */ 1155 err = soc_tplg_control_load(tplg, kc, &mc->hdr); 1156 if (err < 0) 1157 return err; 1158 1159 return 0; 1160 } 1161 1162 static int soc_tplg_dapm_widget_denum_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1163 { 1164 struct snd_soc_tplg_enum_control *ec; 1165 struct soc_enum *se; 1166 int err; 1167 1168 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1169 /* validate kcontrol */ 1170 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1171 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1172 return -EINVAL; 1173 1174 se = devm_kzalloc(tplg->dev, sizeof(*se), GFP_KERNEL); 1175 if (!se) 1176 return -ENOMEM; 1177 1178 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1179 le32_to_cpu(ec->priv.size)); 1180 1181 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1182 ec->hdr.name); 1183 1184 kc->private_value = (long)se; 1185 kc->name = devm_kstrdup(tplg->dev, ec->hdr.name, GFP_KERNEL); 1186 if (!kc->name) 1187 return -ENOMEM; 1188 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1189 kc->access = le32_to_cpu(ec->hdr.access); 1190 1191 /* we only support FL/FR channel mapping atm */ 1192 se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1193 se->shift_l = tplg_chan_get_shift(tplg, ec->channel, 1194 SNDRV_CHMAP_FL); 1195 se->shift_r = tplg_chan_get_shift(tplg, ec->channel, 1196 SNDRV_CHMAP_FR); 1197 1198 se->items = le32_to_cpu(ec->items); 1199 se->mask = le32_to_cpu(ec->mask); 1200 se->dobj.index = tplg->index; 1201 1202 switch (le32_to_cpu(ec->hdr.ops.info)) { 1203 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1204 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1205 err = soc_tplg_denum_create_values(tplg, se, ec); 1206 if (err < 0) { 1207 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1208 ec->hdr.name); 1209 return err; 1210 } 1211 fallthrough; 1212 case SND_SOC_TPLG_CTL_ENUM: 1213 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1214 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1215 err = soc_tplg_denum_create_texts(tplg, se, ec); 1216 if (err < 0) { 1217 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1218 ec->hdr.name); 1219 return err; 1220 } 1221 break; 1222 default: 1223 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1224 ec->hdr.ops.info, ec->hdr.name); 1225 return -EINVAL; 1226 } 1227 1228 /* map io handlers */ 1229 err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, tplg); 1230 if (err) { 1231 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1232 return err; 1233 } 1234 1235 /* pass control to driver for optional further init */ 1236 err = soc_tplg_control_load(tplg, kc, &ec->hdr); 1237 if (err < 0) 1238 return err; 1239 1240 return 0; 1241 } 1242 1243 static int soc_tplg_dapm_widget_dbytes_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1244 { 1245 struct snd_soc_tplg_bytes_control *be; 1246 struct soc_bytes_ext *sbe; 1247 int err; 1248 1249 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1250 1251 /* validate kcontrol */ 1252 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1253 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1254 return -EINVAL; 1255 1256 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL); 1257 if (!sbe) 1258 return -ENOMEM; 1259 1260 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1261 le32_to_cpu(be->priv.size)); 1262 1263 dev_dbg(tplg->dev, 1264 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1265 be->hdr.name, be->hdr.access); 1266 1267 kc->private_value = (long)sbe; 1268 kc->name = devm_kstrdup(tplg->dev, be->hdr.name, GFP_KERNEL); 1269 if (!kc->name) 1270 return -ENOMEM; 1271 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1272 kc->access = le32_to_cpu(be->hdr.access); 1273 1274 sbe->max = le32_to_cpu(be->max); 1275 INIT_LIST_HEAD(&sbe->dobj.list); 1276 1277 /* map standard io handlers and check for external handlers */ 1278 err = soc_tplg_kcontrol_bind_io(&be->hdr, kc, tplg); 1279 if (err) { 1280 soc_control_err(tplg, &be->hdr, be->hdr.name); 1281 return err; 1282 } 1283 1284 /* pass control to driver for optional further init */ 1285 err = soc_tplg_control_load(tplg, kc, &be->hdr); 1286 if (err < 0) 1287 return err; 1288 1289 return 0; 1290 } 1291 1292 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1293 struct snd_soc_tplg_dapm_widget *w) 1294 { 1295 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1296 struct snd_soc_dapm_widget template, *widget; 1297 struct snd_soc_tplg_ctl_hdr *control_hdr; 1298 struct snd_soc_card *card = tplg->comp->card; 1299 unsigned int *kcontrol_type = NULL; 1300 struct snd_kcontrol_new *kc; 1301 int mixer_count = 0; 1302 int bytes_count = 0; 1303 int enum_count = 0; 1304 int ret = 0; 1305 int i; 1306 1307 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1308 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1309 return -EINVAL; 1310 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1311 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1312 return -EINVAL; 1313 1314 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1315 w->name, w->id); 1316 1317 memset(&template, 0, sizeof(template)); 1318 1319 /* map user to kernel widget ID */ 1320 template.id = get_widget_id(le32_to_cpu(w->id)); 1321 if ((int)template.id < 0) 1322 return template.id; 1323 1324 /* strings are allocated here, but used and freed by the widget */ 1325 template.name = kstrdup(w->name, GFP_KERNEL); 1326 if (!template.name) 1327 return -ENOMEM; 1328 template.sname = kstrdup(w->sname, GFP_KERNEL); 1329 if (!template.sname) { 1330 ret = -ENOMEM; 1331 goto err; 1332 } 1333 template.reg = le32_to_cpu(w->reg); 1334 template.shift = le32_to_cpu(w->shift); 1335 template.mask = le32_to_cpu(w->mask); 1336 template.subseq = le32_to_cpu(w->subseq); 1337 template.on_val = w->invert ? 0 : 1; 1338 template.off_val = w->invert ? 1 : 0; 1339 template.ignore_suspend = le32_to_cpu(w->ignore_suspend); 1340 template.event_flags = le16_to_cpu(w->event_flags); 1341 template.dobj.index = tplg->index; 1342 1343 tplg->pos += 1344 (sizeof(struct snd_soc_tplg_dapm_widget) + 1345 le32_to_cpu(w->priv.size)); 1346 1347 if (w->num_kcontrols == 0) { 1348 template.num_kcontrols = 0; 1349 goto widget; 1350 } 1351 1352 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1353 kc = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(*kc), GFP_KERNEL); 1354 if (!kc) { 1355 ret = -ENOMEM; 1356 goto hdr_err; 1357 } 1358 1359 kcontrol_type = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(unsigned int), 1360 GFP_KERNEL); 1361 if (!kcontrol_type) { 1362 ret = -ENOMEM; 1363 goto hdr_err; 1364 } 1365 1366 for (i = 0; i < le32_to_cpu(w->num_kcontrols); i++) { 1367 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1368 switch (le32_to_cpu(control_hdr->ops.info)) { 1369 case SND_SOC_TPLG_CTL_VOLSW: 1370 case SND_SOC_TPLG_CTL_STROBE: 1371 case SND_SOC_TPLG_CTL_VOLSW_SX: 1372 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1373 case SND_SOC_TPLG_CTL_RANGE: 1374 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1375 /* volume mixer */ 1376 kc[i].index = mixer_count; 1377 kcontrol_type[i] = SND_SOC_TPLG_TYPE_MIXER; 1378 mixer_count++; 1379 ret = soc_tplg_dapm_widget_dmixer_create(tplg, &kc[i]); 1380 if (ret < 0) 1381 goto hdr_err; 1382 break; 1383 case SND_SOC_TPLG_CTL_ENUM: 1384 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1385 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1386 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1387 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1388 /* enumerated mixer */ 1389 kc[i].index = enum_count; 1390 kcontrol_type[i] = SND_SOC_TPLG_TYPE_ENUM; 1391 enum_count++; 1392 ret = soc_tplg_dapm_widget_denum_create(tplg, &kc[i]); 1393 if (ret < 0) 1394 goto hdr_err; 1395 break; 1396 case SND_SOC_TPLG_CTL_BYTES: 1397 /* bytes control */ 1398 kc[i].index = bytes_count; 1399 kcontrol_type[i] = SND_SOC_TPLG_TYPE_BYTES; 1400 bytes_count++; 1401 ret = soc_tplg_dapm_widget_dbytes_create(tplg, &kc[i]); 1402 if (ret < 0) 1403 goto hdr_err; 1404 break; 1405 default: 1406 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1407 control_hdr->ops.get, control_hdr->ops.put, 1408 le32_to_cpu(control_hdr->ops.info)); 1409 ret = -EINVAL; 1410 goto hdr_err; 1411 } 1412 } 1413 1414 template.kcontrol_news = kc; 1415 dev_dbg(tplg->dev, "ASoC: template %s with %d/%d/%d (mixer/enum/bytes) control\n", 1416 w->name, mixer_count, enum_count, bytes_count); 1417 1418 widget: 1419 ret = soc_tplg_widget_load(tplg, &template, w); 1420 if (ret < 0) 1421 goto hdr_err; 1422 1423 /* card dapm mutex is held by the core if we are loading topology 1424 * data during sound card init. */ 1425 if (snd_soc_card_is_instantiated(card)) 1426 widget = snd_soc_dapm_new_control(dapm, &template); 1427 else 1428 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1429 if (IS_ERR(widget)) { 1430 ret = PTR_ERR(widget); 1431 goto hdr_err; 1432 } 1433 1434 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1435 widget->dobj.widget.kcontrol_type = kcontrol_type; 1436 if (tplg->ops) 1437 widget->dobj.unload = tplg->ops->widget_unload; 1438 widget->dobj.index = tplg->index; 1439 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1440 1441 ret = soc_tplg_widget_ready(tplg, widget, w); 1442 if (ret < 0) 1443 goto ready_err; 1444 1445 kfree(template.sname); 1446 kfree(template.name); 1447 1448 return 0; 1449 1450 ready_err: 1451 soc_tplg_remove_widget(widget->dapm->component, &widget->dobj, SOC_TPLG_PASS_WIDGET); 1452 snd_soc_dapm_free_widget(widget); 1453 hdr_err: 1454 kfree(template.sname); 1455 err: 1456 kfree(template.name); 1457 return ret; 1458 } 1459 1460 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1461 struct snd_soc_tplg_hdr *hdr) 1462 { 1463 int count, i; 1464 1465 count = le32_to_cpu(hdr->count); 1466 1467 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1468 1469 for (i = 0; i < count; i++) { 1470 struct snd_soc_tplg_dapm_widget *widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1471 int ret; 1472 1473 /* 1474 * check if widget itself fits within topology file 1475 * use sizeof instead of widget->size, as we can't be sure 1476 * it is set properly yet (file may end before it is present) 1477 */ 1478 if (soc_tplg_get_offset(tplg) + sizeof(*widget) >= tplg->fw->size) { 1479 dev_err(tplg->dev, "ASoC: invalid widget data size\n"); 1480 return -EINVAL; 1481 } 1482 1483 /* check if widget has proper size */ 1484 if (le32_to_cpu(widget->size) != sizeof(*widget)) { 1485 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1486 return -EINVAL; 1487 } 1488 1489 /* check if widget private data fits within topology file */ 1490 if (soc_tplg_get_offset(tplg) + le32_to_cpu(widget->priv.size) >= tplg->fw->size) { 1491 dev_err(tplg->dev, "ASoC: invalid widget private data size\n"); 1492 return -EINVAL; 1493 } 1494 1495 ret = soc_tplg_dapm_widget_create(tplg, widget); 1496 if (ret < 0) { 1497 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1498 widget->name); 1499 return ret; 1500 } 1501 } 1502 1503 return 0; 1504 } 1505 1506 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1507 { 1508 struct snd_soc_card *card = tplg->comp->card; 1509 int ret; 1510 1511 /* Card might not have been registered at this point. 1512 * If so, just return success. 1513 */ 1514 if (!snd_soc_card_is_instantiated(card)) { 1515 dev_warn(tplg->dev, "ASoC: Parent card not yet available, widget card binding deferred\n"); 1516 return 0; 1517 } 1518 1519 ret = snd_soc_dapm_new_widgets(card); 1520 if (ret < 0) 1521 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", ret); 1522 1523 return ret; 1524 } 1525 1526 static int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream, 1527 struct snd_soc_tplg_stream_caps *caps) 1528 { 1529 stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL); 1530 if (!stream->stream_name) 1531 return -ENOMEM; 1532 1533 stream->channels_min = le32_to_cpu(caps->channels_min); 1534 stream->channels_max = le32_to_cpu(caps->channels_max); 1535 stream->rates = le32_to_cpu(caps->rates); 1536 stream->rate_min = le32_to_cpu(caps->rate_min); 1537 stream->rate_max = le32_to_cpu(caps->rate_max); 1538 stream->formats = le64_to_cpu(caps->formats); 1539 stream->sig_bits = le32_to_cpu(caps->sig_bits); 1540 1541 return 0; 1542 } 1543 1544 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1545 unsigned int flag_mask, unsigned int flags) 1546 { 1547 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1548 dai_drv->symmetric_rate = 1549 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1550 1551 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1552 dai_drv->symmetric_channels = 1553 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) ? 1554 1 : 0; 1555 1556 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1557 dai_drv->symmetric_sample_bits = 1558 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1559 1 : 0; 1560 } 1561 1562 static const struct snd_soc_dai_ops tplg_dai_ops = { 1563 .compress_new = snd_soc_new_compress, 1564 }; 1565 1566 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1567 struct snd_soc_tplg_pcm *pcm) 1568 { 1569 struct snd_soc_dai_driver *dai_drv; 1570 struct snd_soc_pcm_stream *stream; 1571 struct snd_soc_tplg_stream_caps *caps; 1572 struct snd_soc_dai *dai; 1573 struct snd_soc_dapm_context *dapm = 1574 snd_soc_component_get_dapm(tplg->comp); 1575 int ret; 1576 1577 dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1578 if (dai_drv == NULL) 1579 return -ENOMEM; 1580 1581 if (strlen(pcm->dai_name)) { 1582 dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1583 if (!dai_drv->name) { 1584 ret = -ENOMEM; 1585 goto err; 1586 } 1587 } 1588 dai_drv->id = le32_to_cpu(pcm->dai_id); 1589 1590 if (pcm->playback) { 1591 stream = &dai_drv->playback; 1592 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1593 ret = set_stream_info(tplg, stream, caps); 1594 if (ret < 0) 1595 goto err; 1596 } 1597 1598 if (pcm->capture) { 1599 stream = &dai_drv->capture; 1600 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1601 ret = set_stream_info(tplg, stream, caps); 1602 if (ret < 0) 1603 goto err; 1604 } 1605 1606 if (pcm->compress) 1607 dai_drv->ops = &tplg_dai_ops; 1608 1609 /* pass control to component driver for optional further init */ 1610 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1611 if (ret < 0) { 1612 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 1613 goto err; 1614 } 1615 1616 dai_drv->dobj.index = tplg->index; 1617 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1618 if (tplg->ops) 1619 dai_drv->dobj.unload = tplg->ops->dai_unload; 1620 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1621 1622 /* register the DAI to the component */ 1623 dai = snd_soc_register_dai(tplg->comp, dai_drv, false); 1624 if (!dai) 1625 return -ENOMEM; 1626 1627 /* Create the DAI widgets here */ 1628 ret = snd_soc_dapm_new_dai_widgets(dapm, dai); 1629 if (ret != 0) { 1630 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret); 1631 snd_soc_unregister_dai(dai); 1632 return ret; 1633 } 1634 1635 return 0; 1636 1637 err: 1638 return ret; 1639 } 1640 1641 static void set_link_flags(struct snd_soc_dai_link *link, 1642 unsigned int flag_mask, unsigned int flags) 1643 { 1644 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1645 link->symmetric_rate = 1646 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1647 1648 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1649 link->symmetric_channels = 1650 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) ? 1651 1 : 0; 1652 1653 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1654 link->symmetric_sample_bits = 1655 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1656 1 : 0; 1657 1658 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1659 link->ignore_suspend = 1660 (flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) ? 1661 1 : 0; 1662 } 1663 1664 /* create the FE DAI link */ 1665 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1666 struct snd_soc_tplg_pcm *pcm) 1667 { 1668 struct snd_soc_dai_link *link; 1669 struct snd_soc_dai_link_component *dlc; 1670 int ret; 1671 1672 /* link + cpu + codec + platform */ 1673 link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1674 if (link == NULL) 1675 return -ENOMEM; 1676 1677 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1678 1679 link->cpus = &dlc[0]; 1680 link->num_cpus = 1; 1681 1682 link->dobj.index = tplg->index; 1683 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1684 if (tplg->ops) 1685 link->dobj.unload = tplg->ops->link_unload; 1686 1687 if (strlen(pcm->pcm_name)) { 1688 link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1689 link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1690 if (!link->name || !link->stream_name) { 1691 ret = -ENOMEM; 1692 goto err; 1693 } 1694 } 1695 link->id = le32_to_cpu(pcm->pcm_id); 1696 1697 if (strlen(pcm->dai_name)) { 1698 link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1699 if (!link->cpus->dai_name) { 1700 ret = -ENOMEM; 1701 goto err; 1702 } 1703 } 1704 1705 /* 1706 * Many topology are assuming link has Codec / Platform, and 1707 * these might be overwritten at soc_tplg_dai_link_load(). 1708 * Don't use &asoc_dummy_dlc here. 1709 */ 1710 link->codecs = &dlc[1]; /* Don't use &asoc_dummy_dlc here */ 1711 link->codecs->name = "snd-soc-dummy"; 1712 link->codecs->dai_name = "snd-soc-dummy-dai"; 1713 link->num_codecs = 1; 1714 1715 link->platforms = &dlc[2]; /* Don't use &asoc_dummy_dlc here */ 1716 link->platforms->name = "snd-soc-dummy"; 1717 link->num_platforms = 1; 1718 1719 /* enable DPCM */ 1720 link->dynamic = 1; 1721 link->ignore_pmdown_time = 1; 1722 link->dpcm_playback = le32_to_cpu(pcm->playback); 1723 link->dpcm_capture = le32_to_cpu(pcm->capture); 1724 if (pcm->flag_mask) 1725 set_link_flags(link, 1726 le32_to_cpu(pcm->flag_mask), 1727 le32_to_cpu(pcm->flags)); 1728 1729 /* pass control to component driver for optional further init */ 1730 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1731 if (ret < 0) { 1732 dev_err(tplg->dev, "ASoC: FE link loading failed\n"); 1733 goto err; 1734 } 1735 1736 ret = snd_soc_add_pcm_runtimes(tplg->comp->card, link, 1); 1737 if (ret < 0) { 1738 if (ret != -EPROBE_DEFER) 1739 dev_err(tplg->dev, "ASoC: adding FE link failed\n"); 1740 goto err; 1741 } 1742 1743 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1744 1745 return 0; 1746 err: 1747 return ret; 1748 } 1749 1750 /* create a FE DAI and DAI link from the PCM object */ 1751 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1752 struct snd_soc_tplg_pcm *pcm) 1753 { 1754 int ret; 1755 1756 ret = soc_tplg_dai_create(tplg, pcm); 1757 if (ret < 0) 1758 return ret; 1759 1760 return soc_tplg_fe_link_create(tplg, pcm); 1761 } 1762 1763 /* copy stream caps from the old version 4 of source */ 1764 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 1765 struct snd_soc_tplg_stream_caps_v4 *src) 1766 { 1767 dest->size = cpu_to_le32(sizeof(*dest)); 1768 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1769 dest->formats = src->formats; 1770 dest->rates = src->rates; 1771 dest->rate_min = src->rate_min; 1772 dest->rate_max = src->rate_max; 1773 dest->channels_min = src->channels_min; 1774 dest->channels_max = src->channels_max; 1775 dest->periods_min = src->periods_min; 1776 dest->periods_max = src->periods_max; 1777 dest->period_size_min = src->period_size_min; 1778 dest->period_size_max = src->period_size_max; 1779 dest->buffer_size_min = src->buffer_size_min; 1780 dest->buffer_size_max = src->buffer_size_max; 1781 } 1782 1783 /** 1784 * pcm_new_ver - Create the new version of PCM from the old version. 1785 * @tplg: topology context 1786 * @src: older version of pcm as a source 1787 * @pcm: latest version of pcm created from the source 1788 * 1789 * Support from version 4. User should free the returned pcm manually. 1790 */ 1791 static int pcm_new_ver(struct soc_tplg *tplg, 1792 struct snd_soc_tplg_pcm *src, 1793 struct snd_soc_tplg_pcm **pcm) 1794 { 1795 struct snd_soc_tplg_pcm *dest; 1796 struct snd_soc_tplg_pcm_v4 *src_v4; 1797 int i; 1798 1799 *pcm = NULL; 1800 1801 if (le32_to_cpu(src->size) != sizeof(*src_v4)) { 1802 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 1803 return -EINVAL; 1804 } 1805 1806 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 1807 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 1808 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1809 if (!dest) 1810 return -ENOMEM; 1811 1812 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 1813 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1814 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1815 dest->pcm_id = src_v4->pcm_id; 1816 dest->dai_id = src_v4->dai_id; 1817 dest->playback = src_v4->playback; 1818 dest->capture = src_v4->capture; 1819 dest->compress = src_v4->compress; 1820 dest->num_streams = src_v4->num_streams; 1821 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 1822 memcpy(&dest->stream[i], &src_v4->stream[i], 1823 sizeof(struct snd_soc_tplg_stream)); 1824 1825 for (i = 0; i < 2; i++) 1826 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 1827 1828 *pcm = dest; 1829 return 0; 1830 } 1831 1832 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1833 struct snd_soc_tplg_hdr *hdr) 1834 { 1835 struct snd_soc_tplg_pcm *pcm, *_pcm; 1836 int count; 1837 int size; 1838 int i; 1839 bool abi_match; 1840 int ret; 1841 1842 count = le32_to_cpu(hdr->count); 1843 1844 /* check the element size and count */ 1845 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1846 size = le32_to_cpu(pcm->size); 1847 if (size > sizeof(struct snd_soc_tplg_pcm) 1848 || size < sizeof(struct snd_soc_tplg_pcm_v4)) { 1849 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1850 size); 1851 return -EINVAL; 1852 } 1853 1854 if (soc_tplg_check_elem_count(tplg, 1855 size, count, 1856 le32_to_cpu(hdr->payload_size), 1857 "PCM DAI")) 1858 return -EINVAL; 1859 1860 for (i = 0; i < count; i++) { 1861 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1862 size = le32_to_cpu(pcm->size); 1863 1864 /* check ABI version by size, create a new version of pcm 1865 * if abi not match. 1866 */ 1867 if (size == sizeof(*pcm)) { 1868 abi_match = true; 1869 _pcm = pcm; 1870 } else { 1871 abi_match = false; 1872 ret = pcm_new_ver(tplg, pcm, &_pcm); 1873 if (ret < 0) 1874 return ret; 1875 } 1876 1877 /* create the FE DAIs and DAI links */ 1878 ret = soc_tplg_pcm_create(tplg, _pcm); 1879 if (ret < 0) { 1880 if (!abi_match) 1881 kfree(_pcm); 1882 return ret; 1883 } 1884 1885 /* offset by version-specific struct size and 1886 * real priv data size 1887 */ 1888 tplg->pos += size + le32_to_cpu(_pcm->priv.size); 1889 1890 if (!abi_match) 1891 kfree(_pcm); /* free the duplicated one */ 1892 } 1893 1894 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1895 1896 return 0; 1897 } 1898 1899 /** 1900 * set_link_hw_format - Set the HW audio format of the physical DAI link. 1901 * @link: &snd_soc_dai_link which should be updated 1902 * @cfg: physical link configs. 1903 * 1904 * Topology context contains a list of supported HW formats (configs) and 1905 * a default format ID for the physical link. This function will use this 1906 * default ID to choose the HW format to set the link's DAI format for init. 1907 */ 1908 static void set_link_hw_format(struct snd_soc_dai_link *link, 1909 struct snd_soc_tplg_link_config *cfg) 1910 { 1911 struct snd_soc_tplg_hw_config *hw_config; 1912 unsigned char bclk_provider, fsync_provider; 1913 unsigned char invert_bclk, invert_fsync; 1914 int i; 1915 1916 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 1917 hw_config = &cfg->hw_config[i]; 1918 if (hw_config->id != cfg->default_hw_config_id) 1919 continue; 1920 1921 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 1922 SND_SOC_DAIFMT_FORMAT_MASK; 1923 1924 /* clock gating */ 1925 switch (hw_config->clock_gated) { 1926 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 1927 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 1928 break; 1929 1930 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 1931 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 1932 break; 1933 1934 default: 1935 /* ignore the value */ 1936 break; 1937 } 1938 1939 /* clock signal polarity */ 1940 invert_bclk = hw_config->invert_bclk; 1941 invert_fsync = hw_config->invert_fsync; 1942 if (!invert_bclk && !invert_fsync) 1943 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 1944 else if (!invert_bclk && invert_fsync) 1945 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 1946 else if (invert_bclk && !invert_fsync) 1947 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 1948 else 1949 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 1950 1951 /* clock masters */ 1952 bclk_provider = (hw_config->bclk_provider == 1953 SND_SOC_TPLG_BCLK_CP); 1954 fsync_provider = (hw_config->fsync_provider == 1955 SND_SOC_TPLG_FSYNC_CP); 1956 if (bclk_provider && fsync_provider) 1957 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 1958 else if (!bclk_provider && fsync_provider) 1959 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFP; 1960 else if (bclk_provider && !fsync_provider) 1961 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFC; 1962 else 1963 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC; 1964 } 1965 } 1966 1967 /** 1968 * link_new_ver - Create a new physical link config from the old 1969 * version of source. 1970 * @tplg: topology context 1971 * @src: old version of phyical link config as a source 1972 * @link: latest version of physical link config created from the source 1973 * 1974 * Support from version 4. User need free the returned link config manually. 1975 */ 1976 static int link_new_ver(struct soc_tplg *tplg, 1977 struct snd_soc_tplg_link_config *src, 1978 struct snd_soc_tplg_link_config **link) 1979 { 1980 struct snd_soc_tplg_link_config *dest; 1981 struct snd_soc_tplg_link_config_v4 *src_v4; 1982 int i; 1983 1984 *link = NULL; 1985 1986 if (le32_to_cpu(src->size) != 1987 sizeof(struct snd_soc_tplg_link_config_v4)) { 1988 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 1989 return -EINVAL; 1990 } 1991 1992 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 1993 1994 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 1995 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1996 if (!dest) 1997 return -ENOMEM; 1998 1999 dest->size = cpu_to_le32(sizeof(*dest)); 2000 dest->id = src_v4->id; 2001 dest->num_streams = src_v4->num_streams; 2002 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2003 memcpy(&dest->stream[i], &src_v4->stream[i], 2004 sizeof(struct snd_soc_tplg_stream)); 2005 2006 *link = dest; 2007 return 0; 2008 } 2009 2010 /** 2011 * snd_soc_find_dai_link - Find a DAI link 2012 * 2013 * @card: soc card 2014 * @id: DAI link ID to match 2015 * @name: DAI link name to match, optional 2016 * @stream_name: DAI link stream name to match, optional 2017 * 2018 * This function will search all existing DAI links of the soc card to 2019 * find the link of the same ID. Since DAI links may not have their 2020 * unique ID, so name and stream name should also match if being 2021 * specified. 2022 * 2023 * Return: pointer of DAI link, or NULL if not found. 2024 */ 2025 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, 2026 int id, const char *name, 2027 const char *stream_name) 2028 { 2029 struct snd_soc_pcm_runtime *rtd; 2030 2031 for_each_card_rtds(card, rtd) { 2032 struct snd_soc_dai_link *link = rtd->dai_link; 2033 2034 if (link->id != id) 2035 continue; 2036 2037 if (name && (!link->name || !strstr(link->name, name))) 2038 continue; 2039 2040 if (stream_name && (!link->stream_name || 2041 !strstr(link->stream_name, stream_name))) 2042 continue; 2043 2044 return link; 2045 } 2046 2047 return NULL; 2048 } 2049 2050 /* Find and configure an existing physical DAI link */ 2051 static int soc_tplg_link_config(struct soc_tplg *tplg, 2052 struct snd_soc_tplg_link_config *cfg) 2053 { 2054 struct snd_soc_dai_link *link; 2055 const char *name, *stream_name; 2056 size_t len; 2057 int ret; 2058 2059 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2060 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2061 return -EINVAL; 2062 else if (len) 2063 name = cfg->name; 2064 else 2065 name = NULL; 2066 2067 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2068 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2069 return -EINVAL; 2070 else if (len) 2071 stream_name = cfg->stream_name; 2072 else 2073 stream_name = NULL; 2074 2075 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 2076 name, stream_name); 2077 if (!link) { 2078 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2079 name, cfg->id); 2080 return -EINVAL; 2081 } 2082 2083 /* hw format */ 2084 if (cfg->num_hw_configs) 2085 set_link_hw_format(link, cfg); 2086 2087 /* flags */ 2088 if (cfg->flag_mask) 2089 set_link_flags(link, 2090 le32_to_cpu(cfg->flag_mask), 2091 le32_to_cpu(cfg->flags)); 2092 2093 /* pass control to component driver for optional further init */ 2094 ret = soc_tplg_dai_link_load(tplg, link, cfg); 2095 if (ret < 0) { 2096 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2097 return ret; 2098 } 2099 2100 /* for unloading it in snd_soc_tplg_component_remove */ 2101 link->dobj.index = tplg->index; 2102 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 2103 if (tplg->ops) 2104 link->dobj.unload = tplg->ops->link_unload; 2105 list_add(&link->dobj.list, &tplg->comp->dobj_list); 2106 2107 return 0; 2108 } 2109 2110 2111 /* Load physical link config elements from the topology context */ 2112 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2113 struct snd_soc_tplg_hdr *hdr) 2114 { 2115 struct snd_soc_tplg_link_config *link, *_link; 2116 int count; 2117 int size; 2118 int i, ret; 2119 bool abi_match; 2120 2121 count = le32_to_cpu(hdr->count); 2122 2123 /* check the element size and count */ 2124 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2125 size = le32_to_cpu(link->size); 2126 if (size > sizeof(struct snd_soc_tplg_link_config) 2127 || size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2128 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2129 size); 2130 return -EINVAL; 2131 } 2132 2133 if (soc_tplg_check_elem_count(tplg, size, count, 2134 le32_to_cpu(hdr->payload_size), 2135 "physical link config")) 2136 return -EINVAL; 2137 2138 /* config physical DAI links */ 2139 for (i = 0; i < count; i++) { 2140 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2141 size = le32_to_cpu(link->size); 2142 if (size == sizeof(*link)) { 2143 abi_match = true; 2144 _link = link; 2145 } else { 2146 abi_match = false; 2147 ret = link_new_ver(tplg, link, &_link); 2148 if (ret < 0) 2149 return ret; 2150 } 2151 2152 ret = soc_tplg_link_config(tplg, _link); 2153 if (ret < 0) { 2154 if (!abi_match) 2155 kfree(_link); 2156 return ret; 2157 } 2158 2159 /* offset by version-specific struct size and 2160 * real priv data size 2161 */ 2162 tplg->pos += size + le32_to_cpu(_link->priv.size); 2163 2164 if (!abi_match) 2165 kfree(_link); /* free the duplicated one */ 2166 } 2167 2168 return 0; 2169 } 2170 2171 /** 2172 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2173 * @tplg: topology context 2174 * @d: physical DAI configs. 2175 * 2176 * The physical dai should already be registered by the platform driver. 2177 * The platform driver should specify the DAI name and ID for matching. 2178 */ 2179 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2180 struct snd_soc_tplg_dai *d) 2181 { 2182 struct snd_soc_dai_link_component dai_component; 2183 struct snd_soc_dai *dai; 2184 struct snd_soc_dai_driver *dai_drv; 2185 struct snd_soc_pcm_stream *stream; 2186 struct snd_soc_tplg_stream_caps *caps; 2187 int ret; 2188 2189 memset(&dai_component, 0, sizeof(dai_component)); 2190 2191 dai_component.dai_name = d->dai_name; 2192 dai = snd_soc_find_dai(&dai_component); 2193 if (!dai) { 2194 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2195 d->dai_name); 2196 return -EINVAL; 2197 } 2198 2199 if (le32_to_cpu(d->dai_id) != dai->id) { 2200 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2201 d->dai_name); 2202 return -EINVAL; 2203 } 2204 2205 dai_drv = dai->driver; 2206 if (!dai_drv) 2207 return -EINVAL; 2208 2209 if (d->playback) { 2210 stream = &dai_drv->playback; 2211 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2212 ret = set_stream_info(tplg, stream, caps); 2213 if (ret < 0) 2214 goto err; 2215 } 2216 2217 if (d->capture) { 2218 stream = &dai_drv->capture; 2219 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2220 ret = set_stream_info(tplg, stream, caps); 2221 if (ret < 0) 2222 goto err; 2223 } 2224 2225 if (d->flag_mask) 2226 set_dai_flags(dai_drv, 2227 le32_to_cpu(d->flag_mask), 2228 le32_to_cpu(d->flags)); 2229 2230 /* pass control to component driver for optional further init */ 2231 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2232 if (ret < 0) { 2233 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 2234 goto err; 2235 } 2236 2237 return 0; 2238 2239 err: 2240 return ret; 2241 } 2242 2243 /* load physical DAI elements */ 2244 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2245 struct snd_soc_tplg_hdr *hdr) 2246 { 2247 int count; 2248 int i; 2249 2250 count = le32_to_cpu(hdr->count); 2251 2252 /* config the existing BE DAIs */ 2253 for (i = 0; i < count; i++) { 2254 struct snd_soc_tplg_dai *dai = (struct snd_soc_tplg_dai *)tplg->pos; 2255 int ret; 2256 2257 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 2258 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2259 return -EINVAL; 2260 } 2261 2262 ret = soc_tplg_dai_config(tplg, dai); 2263 if (ret < 0) { 2264 dev_err(tplg->dev, "ASoC: failed to configure DAI\n"); 2265 return ret; 2266 } 2267 2268 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 2269 } 2270 2271 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2272 return 0; 2273 } 2274 2275 /** 2276 * manifest_new_ver - Create a new version of manifest from the old version 2277 * of source. 2278 * @tplg: topology context 2279 * @src: old version of manifest as a source 2280 * @manifest: latest version of manifest created from the source 2281 * 2282 * Support from version 4. Users need free the returned manifest manually. 2283 */ 2284 static int manifest_new_ver(struct soc_tplg *tplg, 2285 struct snd_soc_tplg_manifest *src, 2286 struct snd_soc_tplg_manifest **manifest) 2287 { 2288 struct snd_soc_tplg_manifest *dest; 2289 struct snd_soc_tplg_manifest_v4 *src_v4; 2290 int size; 2291 2292 *manifest = NULL; 2293 2294 size = le32_to_cpu(src->size); 2295 if (size != sizeof(*src_v4)) { 2296 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", 2297 size); 2298 if (size) 2299 return -EINVAL; 2300 src->size = cpu_to_le32(sizeof(*src_v4)); 2301 } 2302 2303 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2304 2305 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2306 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size), 2307 GFP_KERNEL); 2308 if (!dest) 2309 return -ENOMEM; 2310 2311 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2312 dest->control_elems = src_v4->control_elems; 2313 dest->widget_elems = src_v4->widget_elems; 2314 dest->graph_elems = src_v4->graph_elems; 2315 dest->pcm_elems = src_v4->pcm_elems; 2316 dest->dai_link_elems = src_v4->dai_link_elems; 2317 dest->priv.size = src_v4->priv.size; 2318 if (dest->priv.size) 2319 memcpy(dest->priv.data, src_v4->priv.data, 2320 le32_to_cpu(src_v4->priv.size)); 2321 2322 *manifest = dest; 2323 return 0; 2324 } 2325 2326 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2327 struct snd_soc_tplg_hdr *hdr) 2328 { 2329 struct snd_soc_tplg_manifest *manifest, *_manifest; 2330 bool abi_match; 2331 int ret = 0; 2332 2333 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2334 2335 /* check ABI version by size, create a new manifest if abi not match */ 2336 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) { 2337 abi_match = true; 2338 _manifest = manifest; 2339 } else { 2340 abi_match = false; 2341 2342 ret = manifest_new_ver(tplg, manifest, &_manifest); 2343 if (ret < 0) 2344 return ret; 2345 } 2346 2347 /* pass control to component driver for optional further init */ 2348 if (tplg->ops && tplg->ops->manifest) 2349 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest); 2350 2351 if (!abi_match) /* free the duplicated one */ 2352 kfree(_manifest); 2353 2354 return ret; 2355 } 2356 2357 /* validate header magic, size and type */ 2358 static int soc_tplg_valid_header(struct soc_tplg *tplg, 2359 struct snd_soc_tplg_hdr *hdr) 2360 { 2361 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 2362 dev_err(tplg->dev, 2363 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2364 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2365 tplg->fw->size); 2366 return -EINVAL; 2367 } 2368 2369 if (soc_tplg_get_hdr_offset(tplg) + le32_to_cpu(hdr->payload_size) >= tplg->fw->size) { 2370 dev_err(tplg->dev, 2371 "ASoC: invalid header of type %d at offset %ld payload_size %d\n", 2372 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2373 hdr->payload_size); 2374 return -EINVAL; 2375 } 2376 2377 /* big endian firmware objects not supported atm */ 2378 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) { 2379 dev_err(tplg->dev, 2380 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2381 tplg->pass, hdr->magic, 2382 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2383 return -EINVAL; 2384 } 2385 2386 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2387 dev_err(tplg->dev, 2388 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2389 tplg->pass, hdr->magic, 2390 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2391 return -EINVAL; 2392 } 2393 2394 /* Support ABI from version 4 */ 2395 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2396 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2397 dev_err(tplg->dev, 2398 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2399 tplg->pass, hdr->abi, 2400 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2401 tplg->fw->size); 2402 return -EINVAL; 2403 } 2404 2405 if (hdr->payload_size == 0) { 2406 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2407 soc_tplg_get_hdr_offset(tplg)); 2408 return -EINVAL; 2409 } 2410 2411 return 0; 2412 } 2413 2414 /* check header type and call appropriate handler */ 2415 static int soc_tplg_load_header(struct soc_tplg *tplg, 2416 struct snd_soc_tplg_hdr *hdr) 2417 { 2418 int (*elem_load)(struct soc_tplg *tplg, 2419 struct snd_soc_tplg_hdr *hdr); 2420 unsigned int hdr_pass; 2421 2422 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2423 2424 tplg->index = le32_to_cpu(hdr->index); 2425 2426 switch (le32_to_cpu(hdr->type)) { 2427 case SND_SOC_TPLG_TYPE_MIXER: 2428 case SND_SOC_TPLG_TYPE_ENUM: 2429 case SND_SOC_TPLG_TYPE_BYTES: 2430 hdr_pass = SOC_TPLG_PASS_CONTROL; 2431 elem_load = soc_tplg_kcontrol_elems_load; 2432 break; 2433 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2434 hdr_pass = SOC_TPLG_PASS_GRAPH; 2435 elem_load = soc_tplg_dapm_graph_elems_load; 2436 break; 2437 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2438 hdr_pass = SOC_TPLG_PASS_WIDGET; 2439 elem_load = soc_tplg_dapm_widget_elems_load; 2440 break; 2441 case SND_SOC_TPLG_TYPE_PCM: 2442 hdr_pass = SOC_TPLG_PASS_PCM_DAI; 2443 elem_load = soc_tplg_pcm_elems_load; 2444 break; 2445 case SND_SOC_TPLG_TYPE_DAI: 2446 hdr_pass = SOC_TPLG_PASS_BE_DAI; 2447 elem_load = soc_tplg_dai_elems_load; 2448 break; 2449 case SND_SOC_TPLG_TYPE_DAI_LINK: 2450 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2451 /* physical link configurations */ 2452 hdr_pass = SOC_TPLG_PASS_LINK; 2453 elem_load = soc_tplg_link_elems_load; 2454 break; 2455 case SND_SOC_TPLG_TYPE_MANIFEST: 2456 hdr_pass = SOC_TPLG_PASS_MANIFEST; 2457 elem_load = soc_tplg_manifest_load; 2458 break; 2459 default: 2460 /* bespoke vendor data object */ 2461 hdr_pass = SOC_TPLG_PASS_VENDOR; 2462 elem_load = soc_tplg_vendor_load; 2463 break; 2464 } 2465 2466 if (tplg->pass == hdr_pass) { 2467 dev_dbg(tplg->dev, 2468 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2469 hdr->payload_size, hdr->type, hdr->version, 2470 hdr->vendor_type, tplg->pass); 2471 return elem_load(tplg, hdr); 2472 } 2473 2474 return 0; 2475 } 2476 2477 /* process the topology file headers */ 2478 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2479 { 2480 int ret; 2481 2482 /* process the header types from start to end */ 2483 for (tplg->pass = SOC_TPLG_PASS_START; tplg->pass <= SOC_TPLG_PASS_END; tplg->pass++) { 2484 struct snd_soc_tplg_hdr *hdr; 2485 2486 tplg->hdr_pos = tplg->fw->data; 2487 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2488 2489 while (!soc_tplg_is_eof(tplg)) { 2490 2491 /* make sure header is valid before loading */ 2492 ret = soc_tplg_valid_header(tplg, hdr); 2493 if (ret < 0) 2494 return ret; 2495 2496 /* load the header object */ 2497 ret = soc_tplg_load_header(tplg, hdr); 2498 if (ret < 0) { 2499 if (ret != -EPROBE_DEFER) { 2500 dev_err(tplg->dev, 2501 "ASoC: topology: could not load header: %d\n", 2502 ret); 2503 } 2504 return ret; 2505 } 2506 2507 /* goto next header */ 2508 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2509 sizeof(struct snd_soc_tplg_hdr); 2510 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2511 } 2512 2513 } 2514 2515 /* signal DAPM we are complete */ 2516 ret = soc_tplg_dapm_complete(tplg); 2517 2518 return ret; 2519 } 2520 2521 static int soc_tplg_load(struct soc_tplg *tplg) 2522 { 2523 int ret; 2524 2525 ret = soc_tplg_process_headers(tplg); 2526 if (ret == 0) 2527 return soc_tplg_complete(tplg); 2528 2529 return ret; 2530 } 2531 2532 /* load audio component topology from "firmware" file */ 2533 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2534 struct snd_soc_tplg_ops *ops, const struct firmware *fw) 2535 { 2536 struct soc_tplg tplg; 2537 int ret; 2538 2539 /* 2540 * check if we have sane parameters: 2541 * comp - needs to exist to keep and reference data while parsing 2542 * comp->card - used for setting card related parameters 2543 * comp->card->dev - used for resource management and prints 2544 * fw - we need it, as it is the very thing we parse 2545 */ 2546 if (!comp || !comp->card || !comp->card->dev || !fw) 2547 return -EINVAL; 2548 2549 /* setup parsing context */ 2550 memset(&tplg, 0, sizeof(tplg)); 2551 tplg.fw = fw; 2552 tplg.dev = comp->card->dev; 2553 tplg.comp = comp; 2554 if (ops) { 2555 tplg.ops = ops; 2556 tplg.io_ops = ops->io_ops; 2557 tplg.io_ops_count = ops->io_ops_count; 2558 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2559 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2560 } 2561 2562 ret = soc_tplg_load(&tplg); 2563 /* free the created components if fail to load topology */ 2564 if (ret) 2565 snd_soc_tplg_component_remove(comp); 2566 2567 return ret; 2568 } 2569 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2570 2571 /* remove dynamic controls from the component driver */ 2572 int snd_soc_tplg_component_remove(struct snd_soc_component *comp) 2573 { 2574 struct snd_soc_dobj *dobj, *next_dobj; 2575 int pass; 2576 2577 /* process the header types from end to start */ 2578 for (pass = SOC_TPLG_PASS_END; pass >= SOC_TPLG_PASS_START; pass--) { 2579 2580 /* remove mixer controls */ 2581 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2582 list) { 2583 2584 switch (dobj->type) { 2585 case SND_SOC_DOBJ_BYTES: 2586 case SND_SOC_DOBJ_ENUM: 2587 case SND_SOC_DOBJ_MIXER: 2588 soc_tplg_remove_kcontrol(comp, dobj, pass); 2589 break; 2590 case SND_SOC_DOBJ_GRAPH: 2591 soc_tplg_remove_route(comp, dobj, pass); 2592 break; 2593 case SND_SOC_DOBJ_WIDGET: 2594 soc_tplg_remove_widget(comp, dobj, pass); 2595 break; 2596 case SND_SOC_DOBJ_PCM: 2597 soc_tplg_remove_dai(comp, dobj, pass); 2598 break; 2599 case SND_SOC_DOBJ_DAI_LINK: 2600 soc_tplg_remove_link(comp, dobj, pass); 2601 break; 2602 case SND_SOC_DOBJ_BACKEND_LINK: 2603 /* 2604 * call link_unload ops if extra 2605 * deinitialization is needed. 2606 */ 2607 remove_backend_link(comp, dobj, pass); 2608 break; 2609 default: 2610 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2611 dobj->type); 2612 break; 2613 } 2614 } 2615 } 2616 2617 /* let caller know if FW can be freed when no objects are left */ 2618 return !list_empty(&comp->dobj_list); 2619 } 2620 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2621