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