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