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 if (tplg->ops && tplg->ops->control_load) 589 return tplg->ops->control_load(tplg->comp, tplg->index, k, 590 hdr); 591 592 return 0; 593 } 594 595 596 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg, 597 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale) 598 { 599 unsigned int item_len = 2 * sizeof(unsigned int); 600 unsigned int *p; 601 602 p = devm_kzalloc(tplg->dev, item_len + 2 * sizeof(unsigned int), GFP_KERNEL); 603 if (!p) 604 return -ENOMEM; 605 606 p[0] = SNDRV_CTL_TLVT_DB_SCALE; 607 p[1] = item_len; 608 p[2] = le32_to_cpu(scale->min); 609 p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK) 610 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0); 611 612 kc->tlv.p = (void *)p; 613 return 0; 614 } 615 616 static int soc_tplg_create_tlv(struct soc_tplg *tplg, 617 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc) 618 { 619 struct snd_soc_tplg_ctl_tlv *tplg_tlv; 620 u32 access = le32_to_cpu(tc->access); 621 622 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)) 623 return 0; 624 625 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) { 626 tplg_tlv = &tc->tlv; 627 switch (le32_to_cpu(tplg_tlv->type)) { 628 case SNDRV_CTL_TLVT_DB_SCALE: 629 return soc_tplg_create_tlv_db_scale(tplg, kc, 630 &tplg_tlv->scale); 631 632 /* TODO: add support for other TLV types */ 633 default: 634 dev_dbg(tplg->dev, "Unsupported TLV type %d\n", 635 tplg_tlv->type); 636 return -EINVAL; 637 } 638 } 639 640 return 0; 641 } 642 643 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, size_t size) 644 { 645 struct snd_soc_tplg_bytes_control *be; 646 struct soc_bytes_ext *sbe; 647 struct snd_kcontrol_new kc; 648 int ret = 0; 649 650 if (soc_tplg_check_elem_count(tplg, 651 sizeof(struct snd_soc_tplg_bytes_control), 652 1, size, "mixer bytes")) 653 return -EINVAL; 654 655 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 656 657 /* validate kcontrol */ 658 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 659 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 660 return -EINVAL; 661 662 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL); 663 if (sbe == NULL) 664 return -ENOMEM; 665 666 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 667 le32_to_cpu(be->priv.size)); 668 669 dev_dbg(tplg->dev, 670 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 671 be->hdr.name, be->hdr.access); 672 673 memset(&kc, 0, sizeof(kc)); 674 kc.name = be->hdr.name; 675 kc.private_value = (long)sbe; 676 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 677 kc.access = le32_to_cpu(be->hdr.access); 678 679 sbe->max = le32_to_cpu(be->max); 680 sbe->dobj.type = SND_SOC_DOBJ_BYTES; 681 if (tplg->ops) 682 sbe->dobj.unload = tplg->ops->control_unload; 683 INIT_LIST_HEAD(&sbe->dobj.list); 684 685 /* map io handlers */ 686 ret = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg); 687 if (ret) { 688 soc_control_err(tplg, &be->hdr, be->hdr.name); 689 goto err; 690 } 691 692 /* pass control to driver for optional further init */ 693 ret = soc_tplg_control_load(tplg, &kc, &be->hdr); 694 if (ret < 0) { 695 dev_err(tplg->dev, "ASoC: failed to init %s\n", be->hdr.name); 696 goto err; 697 } 698 699 /* register control here */ 700 ret = soc_tplg_add_kcontrol(tplg, &kc, &sbe->dobj.control.kcontrol); 701 if (ret < 0) { 702 dev_err(tplg->dev, "ASoC: failed to add %s\n", be->hdr.name); 703 goto err; 704 } 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 dev_err(tplg->dev, "ASoC: failed to init %s\n", mc->hdr.name); 781 goto err; 782 } 783 784 /* register control here */ 785 ret = soc_tplg_add_kcontrol(tplg, &kc, &sm->dobj.control.kcontrol); 786 if (ret < 0) { 787 dev_err(tplg->dev, "ASoC: failed to add %s\n", mc->hdr.name); 788 goto err; 789 } 790 791 list_add(&sm->dobj.list, &tplg->comp->dobj_list); 792 793 err: 794 return ret; 795 } 796 797 static int soc_tplg_denum_create_texts(struct soc_tplg *tplg, struct soc_enum *se, 798 struct snd_soc_tplg_enum_control *ec) 799 { 800 int i, ret; 801 802 if (le32_to_cpu(ec->items) > ARRAY_SIZE(ec->texts)) 803 return -EINVAL; 804 805 se->dobj.control.dtexts = 806 devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL); 807 if (se->dobj.control.dtexts == NULL) 808 return -ENOMEM; 809 810 for (i = 0; i < le32_to_cpu(ec->items); i++) { 811 812 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 813 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 814 ret = -EINVAL; 815 goto err; 816 } 817 818 se->dobj.control.dtexts[i] = devm_kstrdup(tplg->dev, ec->texts[i], GFP_KERNEL); 819 if (!se->dobj.control.dtexts[i]) { 820 ret = -ENOMEM; 821 goto err; 822 } 823 } 824 825 se->items = le32_to_cpu(ec->items); 826 se->texts = (const char * const *)se->dobj.control.dtexts; 827 return 0; 828 829 err: 830 return ret; 831 } 832 833 static int soc_tplg_denum_create_values(struct soc_tplg *tplg, struct soc_enum *se, 834 struct snd_soc_tplg_enum_control *ec) 835 { 836 int i; 837 838 /* 839 * Following "if" checks if we have at most SND_SOC_TPLG_NUM_TEXTS 840 * values instead of using ARRAY_SIZE(ec->values) due to the fact that 841 * it is oversized for its purpose. Additionally it is done so because 842 * it is defined in UAPI header where it can't be easily changed. 843 */ 844 if (le32_to_cpu(ec->items) > SND_SOC_TPLG_NUM_TEXTS) 845 return -EINVAL; 846 847 se->dobj.control.dvalues = devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), 848 sizeof(*se->dobj.control.dvalues), 849 GFP_KERNEL); 850 if (!se->dobj.control.dvalues) 851 return -ENOMEM; 852 853 /* convert from little-endian */ 854 for (i = 0; i < le32_to_cpu(ec->items); i++) { 855 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]); 856 } 857 858 return 0; 859 } 860 861 static int soc_tplg_denum_create(struct soc_tplg *tplg, size_t size) 862 { 863 struct snd_soc_tplg_enum_control *ec; 864 struct soc_enum *se; 865 struct snd_kcontrol_new kc; 866 int ret = 0; 867 868 if (soc_tplg_check_elem_count(tplg, 869 sizeof(struct snd_soc_tplg_enum_control), 870 1, size, "enums")) 871 return -EINVAL; 872 873 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 874 875 /* validate kcontrol */ 876 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 877 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 878 return -EINVAL; 879 880 se = devm_kzalloc(tplg->dev, (sizeof(*se)), GFP_KERNEL); 881 if (se == NULL) 882 return -ENOMEM; 883 884 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 885 le32_to_cpu(ec->priv.size)); 886 887 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", 888 ec->hdr.name, ec->items); 889 890 memset(&kc, 0, sizeof(kc)); 891 kc.name = ec->hdr.name; 892 kc.private_value = (long)se; 893 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 894 kc.access = le32_to_cpu(ec->hdr.access); 895 896 se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 897 se->shift_l = tplg_chan_get_shift(tplg, ec->channel, 898 SNDRV_CHMAP_FL); 899 se->shift_r = tplg_chan_get_shift(tplg, ec->channel, 900 SNDRV_CHMAP_FL); 901 902 se->mask = le32_to_cpu(ec->mask); 903 se->dobj.index = tplg->index; 904 se->dobj.type = SND_SOC_DOBJ_ENUM; 905 if (tplg->ops) 906 se->dobj.unload = tplg->ops->control_unload; 907 INIT_LIST_HEAD(&se->dobj.list); 908 909 switch (le32_to_cpu(ec->hdr.ops.info)) { 910 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 911 case SND_SOC_TPLG_CTL_ENUM_VALUE: 912 ret = soc_tplg_denum_create_values(tplg, se, ec); 913 if (ret < 0) { 914 dev_err(tplg->dev, 915 "ASoC: could not create values for %s\n", 916 ec->hdr.name); 917 goto err; 918 } 919 fallthrough; 920 case SND_SOC_TPLG_CTL_ENUM: 921 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 922 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 923 ret = soc_tplg_denum_create_texts(tplg, se, ec); 924 if (ret < 0) { 925 dev_err(tplg->dev, 926 "ASoC: could not create texts for %s\n", 927 ec->hdr.name); 928 goto err; 929 } 930 break; 931 default: 932 ret = -EINVAL; 933 dev_err(tplg->dev, 934 "ASoC: invalid enum control type %d for %s\n", 935 ec->hdr.ops.info, ec->hdr.name); 936 goto err; 937 } 938 939 /* map io handlers */ 940 ret = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg); 941 if (ret) { 942 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 943 goto err; 944 } 945 946 /* pass control to driver for optional further init */ 947 ret = soc_tplg_control_load(tplg, &kc, &ec->hdr); 948 if (ret < 0) { 949 dev_err(tplg->dev, "ASoC: failed to init %s\n", ec->hdr.name); 950 goto err; 951 } 952 953 /* register control here */ 954 ret = soc_tplg_add_kcontrol(tplg, &kc, &se->dobj.control.kcontrol); 955 if (ret < 0) { 956 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n", ec->hdr.name); 957 goto err; 958 } 959 960 list_add(&se->dobj.list, &tplg->comp->dobj_list); 961 962 err: 963 return ret; 964 } 965 966 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 967 struct snd_soc_tplg_hdr *hdr) 968 { 969 int ret; 970 int i; 971 972 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 973 soc_tplg_get_offset(tplg)); 974 975 for (i = 0; i < le32_to_cpu(hdr->count); i++) { 976 struct snd_soc_tplg_ctl_hdr *control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 977 978 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) { 979 dev_err(tplg->dev, "ASoC: invalid control size\n"); 980 return -EINVAL; 981 } 982 983 switch (le32_to_cpu(control_hdr->ops.info)) { 984 case SND_SOC_TPLG_CTL_VOLSW: 985 case SND_SOC_TPLG_CTL_STROBE: 986 case SND_SOC_TPLG_CTL_VOLSW_SX: 987 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 988 case SND_SOC_TPLG_CTL_RANGE: 989 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 990 case SND_SOC_TPLG_DAPM_CTL_PIN: 991 ret = soc_tplg_dmixer_create(tplg, le32_to_cpu(hdr->payload_size)); 992 break; 993 case SND_SOC_TPLG_CTL_ENUM: 994 case SND_SOC_TPLG_CTL_ENUM_VALUE: 995 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 996 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 997 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 998 ret = soc_tplg_denum_create(tplg, le32_to_cpu(hdr->payload_size)); 999 break; 1000 case SND_SOC_TPLG_CTL_BYTES: 1001 ret = soc_tplg_dbytes_create(tplg, le32_to_cpu(hdr->payload_size)); 1002 break; 1003 default: 1004 soc_bind_err(tplg, control_hdr, i); 1005 return -EINVAL; 1006 } 1007 if (ret < 0) { 1008 dev_err(tplg->dev, "ASoC: invalid control\n"); 1009 return ret; 1010 } 1011 1012 } 1013 1014 return 0; 1015 } 1016 1017 /* optionally pass new dynamic kcontrol to component driver. */ 1018 static int soc_tplg_add_route(struct soc_tplg *tplg, 1019 struct snd_soc_dapm_route *route) 1020 { 1021 if (tplg->ops && tplg->ops->dapm_route_load) 1022 return tplg->ops->dapm_route_load(tplg->comp, tplg->index, 1023 route); 1024 1025 return 0; 1026 } 1027 1028 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1029 struct snd_soc_tplg_hdr *hdr) 1030 { 1031 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1032 struct snd_soc_tplg_dapm_graph_elem *elem; 1033 struct snd_soc_dapm_route *route; 1034 int count, i; 1035 int ret = 0; 1036 1037 count = le32_to_cpu(hdr->count); 1038 1039 if (soc_tplg_check_elem_count(tplg, 1040 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1041 count, le32_to_cpu(hdr->payload_size), "graph")) 1042 return -EINVAL; 1043 1044 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, 1045 hdr->index); 1046 1047 for (i = 0; i < count; i++) { 1048 route = devm_kzalloc(tplg->dev, sizeof(*route), GFP_KERNEL); 1049 if (!route) 1050 return -ENOMEM; 1051 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1052 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1053 1054 /* validate routes */ 1055 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1056 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1057 ret = -EINVAL; 1058 break; 1059 } 1060 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1061 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1062 ret = -EINVAL; 1063 break; 1064 } 1065 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1066 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1067 ret = -EINVAL; 1068 break; 1069 } 1070 1071 route->source = elem->source; 1072 route->sink = elem->sink; 1073 1074 /* set to NULL atm for tplg users */ 1075 route->connected = NULL; 1076 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0) 1077 route->control = NULL; 1078 else 1079 route->control = elem->control; 1080 1081 /* add route dobj to dobj_list */ 1082 route->dobj.type = SND_SOC_DOBJ_GRAPH; 1083 if (tplg->ops) 1084 route->dobj.unload = tplg->ops->dapm_route_unload; 1085 route->dobj.index = tplg->index; 1086 list_add(&route->dobj.list, &tplg->comp->dobj_list); 1087 1088 ret = soc_tplg_add_route(tplg, route); 1089 if (ret < 0) { 1090 dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret); 1091 break; 1092 } 1093 1094 /* add route, but keep going if some fail */ 1095 snd_soc_dapm_add_routes(dapm, route, 1); 1096 } 1097 1098 return ret; 1099 } 1100 1101 static int soc_tplg_dapm_widget_dmixer_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1102 { 1103 struct soc_mixer_control *sm; 1104 struct snd_soc_tplg_mixer_control *mc; 1105 int err; 1106 1107 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1108 1109 /* validate kcontrol */ 1110 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1111 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1112 return -EINVAL; 1113 1114 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL); 1115 if (!sm) 1116 return -ENOMEM; 1117 1118 tplg->pos += sizeof(struct snd_soc_tplg_mixer_control) + 1119 le32_to_cpu(mc->priv.size); 1120 1121 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s\n", 1122 mc->hdr.name); 1123 1124 kc->private_value = (long)sm; 1125 kc->name = devm_kstrdup(tplg->dev, mc->hdr.name, GFP_KERNEL); 1126 if (!kc->name) 1127 return -ENOMEM; 1128 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1129 kc->access = le32_to_cpu(mc->hdr.access); 1130 1131 /* we only support FL/FR channel mapping atm */ 1132 sm->reg = tplg_chan_get_reg(tplg, mc->channel, 1133 SNDRV_CHMAP_FL); 1134 sm->rreg = tplg_chan_get_reg(tplg, mc->channel, 1135 SNDRV_CHMAP_FR); 1136 sm->shift = tplg_chan_get_shift(tplg, mc->channel, 1137 SNDRV_CHMAP_FL); 1138 sm->rshift = tplg_chan_get_shift(tplg, mc->channel, 1139 SNDRV_CHMAP_FR); 1140 1141 sm->max = le32_to_cpu(mc->max); 1142 sm->min = le32_to_cpu(mc->min); 1143 sm->invert = le32_to_cpu(mc->invert); 1144 sm->platform_max = le32_to_cpu(mc->platform_max); 1145 sm->dobj.index = tplg->index; 1146 INIT_LIST_HEAD(&sm->dobj.list); 1147 1148 /* map io handlers */ 1149 err = soc_tplg_kcontrol_bind_io(&mc->hdr, kc, tplg); 1150 if (err) { 1151 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1152 return err; 1153 } 1154 1155 /* create any TLV data */ 1156 err = soc_tplg_create_tlv(tplg, kc, &mc->hdr); 1157 if (err < 0) { 1158 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 1159 mc->hdr.name); 1160 return err; 1161 } 1162 1163 /* pass control to driver for optional further init */ 1164 err = soc_tplg_control_load(tplg, kc, &mc->hdr); 1165 if (err < 0) { 1166 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1167 mc->hdr.name); 1168 return err; 1169 } 1170 1171 return 0; 1172 } 1173 1174 static int soc_tplg_dapm_widget_denum_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1175 { 1176 struct snd_soc_tplg_enum_control *ec; 1177 struct soc_enum *se; 1178 int err; 1179 1180 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1181 /* validate kcontrol */ 1182 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1183 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1184 return -EINVAL; 1185 1186 se = devm_kzalloc(tplg->dev, sizeof(*se), GFP_KERNEL); 1187 if (!se) 1188 return -ENOMEM; 1189 1190 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1191 le32_to_cpu(ec->priv.size)); 1192 1193 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1194 ec->hdr.name); 1195 1196 kc->private_value = (long)se; 1197 kc->name = devm_kstrdup(tplg->dev, ec->hdr.name, GFP_KERNEL); 1198 if (!kc->name) 1199 return -ENOMEM; 1200 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1201 kc->access = le32_to_cpu(ec->hdr.access); 1202 1203 /* we only support FL/FR channel mapping atm */ 1204 se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1205 se->shift_l = tplg_chan_get_shift(tplg, ec->channel, 1206 SNDRV_CHMAP_FL); 1207 se->shift_r = tplg_chan_get_shift(tplg, ec->channel, 1208 SNDRV_CHMAP_FR); 1209 1210 se->items = le32_to_cpu(ec->items); 1211 se->mask = le32_to_cpu(ec->mask); 1212 se->dobj.index = tplg->index; 1213 1214 switch (le32_to_cpu(ec->hdr.ops.info)) { 1215 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1216 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1217 err = soc_tplg_denum_create_values(tplg, se, ec); 1218 if (err < 0) { 1219 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1220 ec->hdr.name); 1221 return err; 1222 } 1223 fallthrough; 1224 case SND_SOC_TPLG_CTL_ENUM: 1225 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1226 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1227 err = soc_tplg_denum_create_texts(tplg, se, ec); 1228 if (err < 0) { 1229 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1230 ec->hdr.name); 1231 return err; 1232 } 1233 break; 1234 default: 1235 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1236 ec->hdr.ops.info, ec->hdr.name); 1237 return -EINVAL; 1238 } 1239 1240 /* map io handlers */ 1241 err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, tplg); 1242 if (err) { 1243 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1244 return err; 1245 } 1246 1247 /* pass control to driver for optional further init */ 1248 err = soc_tplg_control_load(tplg, kc, &ec->hdr); 1249 if (err < 0) { 1250 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1251 ec->hdr.name); 1252 return err; 1253 } 1254 1255 return 0; 1256 } 1257 1258 static int soc_tplg_dapm_widget_dbytes_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1259 { 1260 struct snd_soc_tplg_bytes_control *be; 1261 struct soc_bytes_ext *sbe; 1262 int err; 1263 1264 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1265 1266 /* validate kcontrol */ 1267 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1268 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1269 return -EINVAL; 1270 1271 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL); 1272 if (!sbe) 1273 return -ENOMEM; 1274 1275 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1276 le32_to_cpu(be->priv.size)); 1277 1278 dev_dbg(tplg->dev, 1279 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1280 be->hdr.name, be->hdr.access); 1281 1282 kc->private_value = (long)sbe; 1283 kc->name = devm_kstrdup(tplg->dev, be->hdr.name, GFP_KERNEL); 1284 if (!kc->name) 1285 return -ENOMEM; 1286 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1287 kc->access = le32_to_cpu(be->hdr.access); 1288 1289 sbe->max = le32_to_cpu(be->max); 1290 INIT_LIST_HEAD(&sbe->dobj.list); 1291 1292 /* map standard io handlers and check for external handlers */ 1293 err = soc_tplg_kcontrol_bind_io(&be->hdr, kc, tplg); 1294 if (err) { 1295 soc_control_err(tplg, &be->hdr, be->hdr.name); 1296 return err; 1297 } 1298 1299 /* pass control to driver for optional further init */ 1300 err = soc_tplg_control_load(tplg, kc, &be->hdr); 1301 if (err < 0) { 1302 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1303 be->hdr.name); 1304 return err; 1305 } 1306 1307 return 0; 1308 } 1309 1310 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1311 struct snd_soc_tplg_dapm_widget *w) 1312 { 1313 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1314 struct snd_soc_dapm_widget template, *widget; 1315 struct snd_soc_tplg_ctl_hdr *control_hdr; 1316 struct snd_soc_card *card = tplg->comp->card; 1317 unsigned int *kcontrol_type = NULL; 1318 struct snd_kcontrol_new *kc; 1319 int mixer_count = 0; 1320 int bytes_count = 0; 1321 int enum_count = 0; 1322 int ret = 0; 1323 int i; 1324 1325 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1326 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1327 return -EINVAL; 1328 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1329 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1330 return -EINVAL; 1331 1332 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1333 w->name, w->id); 1334 1335 memset(&template, 0, sizeof(template)); 1336 1337 /* map user to kernel widget ID */ 1338 template.id = get_widget_id(le32_to_cpu(w->id)); 1339 if ((int)template.id < 0) 1340 return template.id; 1341 1342 /* strings are allocated here, but used and freed by the widget */ 1343 template.name = kstrdup(w->name, GFP_KERNEL); 1344 if (!template.name) 1345 return -ENOMEM; 1346 template.sname = kstrdup(w->sname, GFP_KERNEL); 1347 if (!template.sname) { 1348 ret = -ENOMEM; 1349 goto err; 1350 } 1351 template.reg = le32_to_cpu(w->reg); 1352 template.shift = le32_to_cpu(w->shift); 1353 template.mask = le32_to_cpu(w->mask); 1354 template.subseq = le32_to_cpu(w->subseq); 1355 template.on_val = w->invert ? 0 : 1; 1356 template.off_val = w->invert ? 1 : 0; 1357 template.ignore_suspend = le32_to_cpu(w->ignore_suspend); 1358 template.event_flags = le16_to_cpu(w->event_flags); 1359 template.dobj.index = tplg->index; 1360 1361 tplg->pos += 1362 (sizeof(struct snd_soc_tplg_dapm_widget) + 1363 le32_to_cpu(w->priv.size)); 1364 1365 if (w->num_kcontrols == 0) { 1366 template.num_kcontrols = 0; 1367 goto widget; 1368 } 1369 1370 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1371 kc = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(*kc), GFP_KERNEL); 1372 if (!kc) { 1373 ret = -ENOMEM; 1374 goto hdr_err; 1375 } 1376 1377 kcontrol_type = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(unsigned int), 1378 GFP_KERNEL); 1379 if (!kcontrol_type) { 1380 ret = -ENOMEM; 1381 goto hdr_err; 1382 } 1383 1384 for (i = 0; i < le32_to_cpu(w->num_kcontrols); i++) { 1385 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1386 switch (le32_to_cpu(control_hdr->ops.info)) { 1387 case SND_SOC_TPLG_CTL_VOLSW: 1388 case SND_SOC_TPLG_CTL_STROBE: 1389 case SND_SOC_TPLG_CTL_VOLSW_SX: 1390 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1391 case SND_SOC_TPLG_CTL_RANGE: 1392 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1393 /* volume mixer */ 1394 kc[i].index = mixer_count; 1395 kcontrol_type[i] = SND_SOC_TPLG_TYPE_MIXER; 1396 mixer_count++; 1397 ret = soc_tplg_dapm_widget_dmixer_create(tplg, &kc[i]); 1398 if (ret < 0) 1399 goto hdr_err; 1400 break; 1401 case SND_SOC_TPLG_CTL_ENUM: 1402 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1403 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1404 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1405 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1406 /* enumerated mixer */ 1407 kc[i].index = enum_count; 1408 kcontrol_type[i] = SND_SOC_TPLG_TYPE_ENUM; 1409 enum_count++; 1410 ret = soc_tplg_dapm_widget_denum_create(tplg, &kc[i]); 1411 if (ret < 0) 1412 goto hdr_err; 1413 break; 1414 case SND_SOC_TPLG_CTL_BYTES: 1415 /* bytes control */ 1416 kc[i].index = bytes_count; 1417 kcontrol_type[i] = SND_SOC_TPLG_TYPE_BYTES; 1418 bytes_count++; 1419 ret = soc_tplg_dapm_widget_dbytes_create(tplg, &kc[i]); 1420 if (ret < 0) 1421 goto hdr_err; 1422 break; 1423 default: 1424 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1425 control_hdr->ops.get, control_hdr->ops.put, 1426 le32_to_cpu(control_hdr->ops.info)); 1427 ret = -EINVAL; 1428 goto hdr_err; 1429 } 1430 } 1431 1432 template.kcontrol_news = kc; 1433 dev_dbg(tplg->dev, "ASoC: template %s with %d/%d/%d (mixer/enum/bytes) control\n", 1434 w->name, mixer_count, enum_count, bytes_count); 1435 1436 widget: 1437 ret = soc_tplg_widget_load(tplg, &template, w); 1438 if (ret < 0) 1439 goto hdr_err; 1440 1441 /* card dapm mutex is held by the core if we are loading topology 1442 * data during sound card init. */ 1443 if (snd_soc_card_is_instantiated(card)) 1444 widget = snd_soc_dapm_new_control(dapm, &template); 1445 else 1446 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1447 if (IS_ERR(widget)) { 1448 ret = PTR_ERR(widget); 1449 goto hdr_err; 1450 } 1451 1452 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1453 widget->dobj.widget.kcontrol_type = kcontrol_type; 1454 if (tplg->ops) 1455 widget->dobj.unload = tplg->ops->widget_unload; 1456 widget->dobj.index = tplg->index; 1457 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1458 1459 ret = soc_tplg_widget_ready(tplg, widget, w); 1460 if (ret < 0) 1461 goto ready_err; 1462 1463 kfree(template.sname); 1464 kfree(template.name); 1465 1466 return 0; 1467 1468 ready_err: 1469 soc_tplg_remove_widget(widget->dapm->component, &widget->dobj, SOC_TPLG_PASS_WIDGET); 1470 snd_soc_dapm_free_widget(widget); 1471 hdr_err: 1472 kfree(template.sname); 1473 err: 1474 kfree(template.name); 1475 return ret; 1476 } 1477 1478 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1479 struct snd_soc_tplg_hdr *hdr) 1480 { 1481 int count, i; 1482 1483 count = le32_to_cpu(hdr->count); 1484 1485 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1486 1487 for (i = 0; i < count; i++) { 1488 struct snd_soc_tplg_dapm_widget *widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1489 int ret; 1490 1491 /* 1492 * check if widget itself fits within topology file 1493 * use sizeof instead of widget->size, as we can't be sure 1494 * it is set properly yet (file may end before it is present) 1495 */ 1496 if (soc_tplg_get_offset(tplg) + sizeof(*widget) >= tplg->fw->size) { 1497 dev_err(tplg->dev, "ASoC: invalid widget data size\n"); 1498 return -EINVAL; 1499 } 1500 1501 /* check if widget has proper size */ 1502 if (le32_to_cpu(widget->size) != sizeof(*widget)) { 1503 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1504 return -EINVAL; 1505 } 1506 1507 /* check if widget private data fits within topology file */ 1508 if (soc_tplg_get_offset(tplg) + le32_to_cpu(widget->priv.size) >= tplg->fw->size) { 1509 dev_err(tplg->dev, "ASoC: invalid widget private data size\n"); 1510 return -EINVAL; 1511 } 1512 1513 ret = soc_tplg_dapm_widget_create(tplg, widget); 1514 if (ret < 0) { 1515 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1516 widget->name); 1517 return ret; 1518 } 1519 } 1520 1521 return 0; 1522 } 1523 1524 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1525 { 1526 struct snd_soc_card *card = tplg->comp->card; 1527 int ret; 1528 1529 /* Card might not have been registered at this point. 1530 * If so, just return success. 1531 */ 1532 if (!snd_soc_card_is_instantiated(card)) { 1533 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1534 " widget card binding deferred\n"); 1535 return 0; 1536 } 1537 1538 ret = snd_soc_dapm_new_widgets(card); 1539 if (ret < 0) 1540 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1541 ret); 1542 1543 return ret; 1544 } 1545 1546 static int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream, 1547 struct snd_soc_tplg_stream_caps *caps) 1548 { 1549 stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL); 1550 if (!stream->stream_name) 1551 return -ENOMEM; 1552 1553 stream->channels_min = le32_to_cpu(caps->channels_min); 1554 stream->channels_max = le32_to_cpu(caps->channels_max); 1555 stream->rates = le32_to_cpu(caps->rates); 1556 stream->rate_min = le32_to_cpu(caps->rate_min); 1557 stream->rate_max = le32_to_cpu(caps->rate_max); 1558 stream->formats = le64_to_cpu(caps->formats); 1559 stream->sig_bits = le32_to_cpu(caps->sig_bits); 1560 1561 return 0; 1562 } 1563 1564 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1565 unsigned int flag_mask, unsigned int flags) 1566 { 1567 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1568 dai_drv->symmetric_rate = 1569 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1570 1571 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1572 dai_drv->symmetric_channels = 1573 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) ? 1574 1 : 0; 1575 1576 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1577 dai_drv->symmetric_sample_bits = 1578 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1579 1 : 0; 1580 } 1581 1582 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1583 struct snd_soc_tplg_pcm *pcm) 1584 { 1585 struct snd_soc_dai_driver *dai_drv; 1586 struct snd_soc_pcm_stream *stream; 1587 struct snd_soc_tplg_stream_caps *caps; 1588 struct snd_soc_dai *dai; 1589 struct snd_soc_dapm_context *dapm = 1590 snd_soc_component_get_dapm(tplg->comp); 1591 int ret; 1592 1593 dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1594 if (dai_drv == NULL) 1595 return -ENOMEM; 1596 1597 if (strlen(pcm->dai_name)) { 1598 dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1599 if (!dai_drv->name) { 1600 ret = -ENOMEM; 1601 goto err; 1602 } 1603 } 1604 dai_drv->id = le32_to_cpu(pcm->dai_id); 1605 1606 if (pcm->playback) { 1607 stream = &dai_drv->playback; 1608 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1609 ret = set_stream_info(tplg, stream, caps); 1610 if (ret < 0) 1611 goto err; 1612 } 1613 1614 if (pcm->capture) { 1615 stream = &dai_drv->capture; 1616 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1617 ret = set_stream_info(tplg, stream, caps); 1618 if (ret < 0) 1619 goto err; 1620 } 1621 1622 if (pcm->compress) 1623 dai_drv->compress_new = snd_soc_new_compress; 1624 1625 /* pass control to component driver for optional further init */ 1626 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1627 if (ret < 0) { 1628 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 1629 goto err; 1630 } 1631 1632 dai_drv->dobj.index = tplg->index; 1633 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1634 if (tplg->ops) 1635 dai_drv->dobj.unload = tplg->ops->dai_unload; 1636 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1637 1638 /* register the DAI to the component */ 1639 dai = snd_soc_register_dai(tplg->comp, dai_drv, false); 1640 if (!dai) 1641 return -ENOMEM; 1642 1643 /* Create the DAI widgets here */ 1644 ret = snd_soc_dapm_new_dai_widgets(dapm, dai); 1645 if (ret != 0) { 1646 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret); 1647 snd_soc_unregister_dai(dai); 1648 return ret; 1649 } 1650 1651 return 0; 1652 1653 err: 1654 return ret; 1655 } 1656 1657 static void set_link_flags(struct snd_soc_dai_link *link, 1658 unsigned int flag_mask, unsigned int flags) 1659 { 1660 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1661 link->symmetric_rate = 1662 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1663 1664 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1665 link->symmetric_channels = 1666 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) ? 1667 1 : 0; 1668 1669 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1670 link->symmetric_sample_bits = 1671 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1672 1 : 0; 1673 1674 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1675 link->ignore_suspend = 1676 (flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) ? 1677 1 : 0; 1678 } 1679 1680 /* create the FE DAI link */ 1681 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1682 struct snd_soc_tplg_pcm *pcm) 1683 { 1684 struct snd_soc_dai_link *link; 1685 struct snd_soc_dai_link_component *dlc; 1686 int ret; 1687 1688 /* link + cpu + codec + platform */ 1689 link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1690 if (link == NULL) 1691 return -ENOMEM; 1692 1693 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1694 1695 link->cpus = &dlc[0]; 1696 link->codecs = &dlc[1]; 1697 link->platforms = &dlc[2]; 1698 1699 link->num_cpus = 1; 1700 link->num_codecs = 1; 1701 link->num_platforms = 1; 1702 1703 link->dobj.index = tplg->index; 1704 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1705 if (tplg->ops) 1706 link->dobj.unload = tplg->ops->link_unload; 1707 1708 if (strlen(pcm->pcm_name)) { 1709 link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1710 link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1711 if (!link->name || !link->stream_name) { 1712 ret = -ENOMEM; 1713 goto err; 1714 } 1715 } 1716 link->id = le32_to_cpu(pcm->pcm_id); 1717 1718 if (strlen(pcm->dai_name)) { 1719 link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1720 if (!link->cpus->dai_name) { 1721 ret = -ENOMEM; 1722 goto err; 1723 } 1724 } 1725 1726 link->codecs->name = "snd-soc-dummy"; 1727 link->codecs->dai_name = "snd-soc-dummy-dai"; 1728 1729 link->platforms->name = "snd-soc-dummy"; 1730 1731 /* enable DPCM */ 1732 link->dynamic = 1; 1733 link->ignore_pmdown_time = 1; 1734 link->dpcm_playback = le32_to_cpu(pcm->playback); 1735 link->dpcm_capture = le32_to_cpu(pcm->capture); 1736 if (pcm->flag_mask) 1737 set_link_flags(link, 1738 le32_to_cpu(pcm->flag_mask), 1739 le32_to_cpu(pcm->flags)); 1740 1741 /* pass control to component driver for optional further init */ 1742 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1743 if (ret < 0) { 1744 dev_err(tplg->dev, "ASoC: FE link loading failed\n"); 1745 goto err; 1746 } 1747 1748 ret = snd_soc_add_pcm_runtime(tplg->comp->card, link); 1749 if (ret < 0) { 1750 dev_err(tplg->dev, "ASoC: adding FE link failed\n"); 1751 goto err; 1752 } 1753 1754 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1755 1756 return 0; 1757 err: 1758 return ret; 1759 } 1760 1761 /* create a FE DAI and DAI link from the PCM object */ 1762 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1763 struct snd_soc_tplg_pcm *pcm) 1764 { 1765 int ret; 1766 1767 ret = soc_tplg_dai_create(tplg, pcm); 1768 if (ret < 0) 1769 return ret; 1770 1771 return soc_tplg_fe_link_create(tplg, pcm); 1772 } 1773 1774 /* copy stream caps from the old version 4 of source */ 1775 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 1776 struct snd_soc_tplg_stream_caps_v4 *src) 1777 { 1778 dest->size = cpu_to_le32(sizeof(*dest)); 1779 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1780 dest->formats = src->formats; 1781 dest->rates = src->rates; 1782 dest->rate_min = src->rate_min; 1783 dest->rate_max = src->rate_max; 1784 dest->channels_min = src->channels_min; 1785 dest->channels_max = src->channels_max; 1786 dest->periods_min = src->periods_min; 1787 dest->periods_max = src->periods_max; 1788 dest->period_size_min = src->period_size_min; 1789 dest->period_size_max = src->period_size_max; 1790 dest->buffer_size_min = src->buffer_size_min; 1791 dest->buffer_size_max = src->buffer_size_max; 1792 } 1793 1794 /** 1795 * pcm_new_ver - Create the new version of PCM from the old version. 1796 * @tplg: topology context 1797 * @src: older version of pcm as a source 1798 * @pcm: latest version of pcm created from the source 1799 * 1800 * Support from version 4. User should free the returned pcm manually. 1801 */ 1802 static int pcm_new_ver(struct soc_tplg *tplg, 1803 struct snd_soc_tplg_pcm *src, 1804 struct snd_soc_tplg_pcm **pcm) 1805 { 1806 struct snd_soc_tplg_pcm *dest; 1807 struct snd_soc_tplg_pcm_v4 *src_v4; 1808 int i; 1809 1810 *pcm = NULL; 1811 1812 if (le32_to_cpu(src->size) != sizeof(*src_v4)) { 1813 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 1814 return -EINVAL; 1815 } 1816 1817 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 1818 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 1819 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1820 if (!dest) 1821 return -ENOMEM; 1822 1823 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 1824 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1825 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1826 dest->pcm_id = src_v4->pcm_id; 1827 dest->dai_id = src_v4->dai_id; 1828 dest->playback = src_v4->playback; 1829 dest->capture = src_v4->capture; 1830 dest->compress = src_v4->compress; 1831 dest->num_streams = src_v4->num_streams; 1832 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 1833 memcpy(&dest->stream[i], &src_v4->stream[i], 1834 sizeof(struct snd_soc_tplg_stream)); 1835 1836 for (i = 0; i < 2; i++) 1837 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 1838 1839 *pcm = dest; 1840 return 0; 1841 } 1842 1843 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1844 struct snd_soc_tplg_hdr *hdr) 1845 { 1846 struct snd_soc_tplg_pcm *pcm, *_pcm; 1847 int count; 1848 int size; 1849 int i; 1850 bool abi_match; 1851 int ret; 1852 1853 count = le32_to_cpu(hdr->count); 1854 1855 /* check the element size and count */ 1856 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1857 size = le32_to_cpu(pcm->size); 1858 if (size > sizeof(struct snd_soc_tplg_pcm) 1859 || size < sizeof(struct snd_soc_tplg_pcm_v4)) { 1860 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1861 size); 1862 return -EINVAL; 1863 } 1864 1865 if (soc_tplg_check_elem_count(tplg, 1866 size, count, 1867 le32_to_cpu(hdr->payload_size), 1868 "PCM DAI")) 1869 return -EINVAL; 1870 1871 for (i = 0; i < count; i++) { 1872 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1873 size = le32_to_cpu(pcm->size); 1874 1875 /* check ABI version by size, create a new version of pcm 1876 * if abi not match. 1877 */ 1878 if (size == sizeof(*pcm)) { 1879 abi_match = true; 1880 _pcm = pcm; 1881 } else { 1882 abi_match = false; 1883 ret = pcm_new_ver(tplg, pcm, &_pcm); 1884 if (ret < 0) 1885 return ret; 1886 } 1887 1888 /* create the FE DAIs and DAI links */ 1889 ret = soc_tplg_pcm_create(tplg, _pcm); 1890 if (ret < 0) { 1891 if (!abi_match) 1892 kfree(_pcm); 1893 return ret; 1894 } 1895 1896 /* offset by version-specific struct size and 1897 * real priv data size 1898 */ 1899 tplg->pos += size + le32_to_cpu(_pcm->priv.size); 1900 1901 if (!abi_match) 1902 kfree(_pcm); /* free the duplicated one */ 1903 } 1904 1905 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1906 1907 return 0; 1908 } 1909 1910 /** 1911 * set_link_hw_format - Set the HW audio format of the physical DAI link. 1912 * @link: &snd_soc_dai_link which should be updated 1913 * @cfg: physical link configs. 1914 * 1915 * Topology context contains a list of supported HW formats (configs) and 1916 * a default format ID for the physical link. This function will use this 1917 * default ID to choose the HW format to set the link's DAI format for init. 1918 */ 1919 static void set_link_hw_format(struct snd_soc_dai_link *link, 1920 struct snd_soc_tplg_link_config *cfg) 1921 { 1922 struct snd_soc_tplg_hw_config *hw_config; 1923 unsigned char bclk_provider, fsync_provider; 1924 unsigned char invert_bclk, invert_fsync; 1925 int i; 1926 1927 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 1928 hw_config = &cfg->hw_config[i]; 1929 if (hw_config->id != cfg->default_hw_config_id) 1930 continue; 1931 1932 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 1933 SND_SOC_DAIFMT_FORMAT_MASK; 1934 1935 /* clock gating */ 1936 switch (hw_config->clock_gated) { 1937 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 1938 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 1939 break; 1940 1941 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 1942 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 1943 break; 1944 1945 default: 1946 /* ignore the value */ 1947 break; 1948 } 1949 1950 /* clock signal polarity */ 1951 invert_bclk = hw_config->invert_bclk; 1952 invert_fsync = hw_config->invert_fsync; 1953 if (!invert_bclk && !invert_fsync) 1954 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 1955 else if (!invert_bclk && invert_fsync) 1956 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 1957 else if (invert_bclk && !invert_fsync) 1958 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 1959 else 1960 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 1961 1962 /* clock masters */ 1963 bclk_provider = (hw_config->bclk_provider == 1964 SND_SOC_TPLG_BCLK_CP); 1965 fsync_provider = (hw_config->fsync_provider == 1966 SND_SOC_TPLG_FSYNC_CP); 1967 if (bclk_provider && fsync_provider) 1968 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 1969 else if (!bclk_provider && fsync_provider) 1970 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFP; 1971 else if (bclk_provider && !fsync_provider) 1972 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFC; 1973 else 1974 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC; 1975 } 1976 } 1977 1978 /** 1979 * link_new_ver - Create a new physical link config from the old 1980 * version of source. 1981 * @tplg: topology context 1982 * @src: old version of phyical link config as a source 1983 * @link: latest version of physical link config created from the source 1984 * 1985 * Support from version 4. User need free the returned link config manually. 1986 */ 1987 static int link_new_ver(struct soc_tplg *tplg, 1988 struct snd_soc_tplg_link_config *src, 1989 struct snd_soc_tplg_link_config **link) 1990 { 1991 struct snd_soc_tplg_link_config *dest; 1992 struct snd_soc_tplg_link_config_v4 *src_v4; 1993 int i; 1994 1995 *link = NULL; 1996 1997 if (le32_to_cpu(src->size) != 1998 sizeof(struct snd_soc_tplg_link_config_v4)) { 1999 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2000 return -EINVAL; 2001 } 2002 2003 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2004 2005 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2006 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2007 if (!dest) 2008 return -ENOMEM; 2009 2010 dest->size = cpu_to_le32(sizeof(*dest)); 2011 dest->id = src_v4->id; 2012 dest->num_streams = src_v4->num_streams; 2013 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2014 memcpy(&dest->stream[i], &src_v4->stream[i], 2015 sizeof(struct snd_soc_tplg_stream)); 2016 2017 *link = dest; 2018 return 0; 2019 } 2020 2021 /** 2022 * snd_soc_find_dai_link - Find a DAI link 2023 * 2024 * @card: soc card 2025 * @id: DAI link ID to match 2026 * @name: DAI link name to match, optional 2027 * @stream_name: DAI link stream name to match, optional 2028 * 2029 * This function will search all existing DAI links of the soc card to 2030 * find the link of the same ID. Since DAI links may not have their 2031 * unique ID, so name and stream name should also match if being 2032 * specified. 2033 * 2034 * Return: pointer of DAI link, or NULL if not found. 2035 */ 2036 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, 2037 int id, const char *name, 2038 const char *stream_name) 2039 { 2040 struct snd_soc_pcm_runtime *rtd; 2041 2042 for_each_card_rtds(card, rtd) { 2043 struct snd_soc_dai_link *link = rtd->dai_link; 2044 2045 if (link->id != id) 2046 continue; 2047 2048 if (name && (!link->name || strcmp(name, link->name))) 2049 continue; 2050 2051 if (stream_name && (!link->stream_name 2052 || strcmp(stream_name, link->stream_name))) 2053 continue; 2054 2055 return link; 2056 } 2057 2058 return NULL; 2059 } 2060 2061 /* Find and configure an existing physical DAI link */ 2062 static int soc_tplg_link_config(struct soc_tplg *tplg, 2063 struct snd_soc_tplg_link_config *cfg) 2064 { 2065 struct snd_soc_dai_link *link; 2066 const char *name, *stream_name; 2067 size_t len; 2068 int ret; 2069 2070 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2071 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2072 return -EINVAL; 2073 else if (len) 2074 name = cfg->name; 2075 else 2076 name = NULL; 2077 2078 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2079 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2080 return -EINVAL; 2081 else if (len) 2082 stream_name = cfg->stream_name; 2083 else 2084 stream_name = NULL; 2085 2086 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 2087 name, stream_name); 2088 if (!link) { 2089 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2090 name, cfg->id); 2091 return -EINVAL; 2092 } 2093 2094 /* hw format */ 2095 if (cfg->num_hw_configs) 2096 set_link_hw_format(link, cfg); 2097 2098 /* flags */ 2099 if (cfg->flag_mask) 2100 set_link_flags(link, 2101 le32_to_cpu(cfg->flag_mask), 2102 le32_to_cpu(cfg->flags)); 2103 2104 /* pass control to component driver for optional further init */ 2105 ret = soc_tplg_dai_link_load(tplg, link, cfg); 2106 if (ret < 0) { 2107 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2108 return ret; 2109 } 2110 2111 /* for unloading it in snd_soc_tplg_component_remove */ 2112 link->dobj.index = tplg->index; 2113 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 2114 if (tplg->ops) 2115 link->dobj.unload = tplg->ops->link_unload; 2116 list_add(&link->dobj.list, &tplg->comp->dobj_list); 2117 2118 return 0; 2119 } 2120 2121 2122 /* Load physical link config elements from the topology context */ 2123 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2124 struct snd_soc_tplg_hdr *hdr) 2125 { 2126 struct snd_soc_tplg_link_config *link, *_link; 2127 int count; 2128 int size; 2129 int i, ret; 2130 bool abi_match; 2131 2132 count = le32_to_cpu(hdr->count); 2133 2134 /* check the element size and count */ 2135 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2136 size = le32_to_cpu(link->size); 2137 if (size > sizeof(struct snd_soc_tplg_link_config) 2138 || size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2139 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2140 size); 2141 return -EINVAL; 2142 } 2143 2144 if (soc_tplg_check_elem_count(tplg, size, count, 2145 le32_to_cpu(hdr->payload_size), 2146 "physical link config")) 2147 return -EINVAL; 2148 2149 /* config physical DAI links */ 2150 for (i = 0; i < count; i++) { 2151 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2152 size = le32_to_cpu(link->size); 2153 if (size == sizeof(*link)) { 2154 abi_match = true; 2155 _link = link; 2156 } else { 2157 abi_match = false; 2158 ret = link_new_ver(tplg, link, &_link); 2159 if (ret < 0) 2160 return ret; 2161 } 2162 2163 ret = soc_tplg_link_config(tplg, _link); 2164 if (ret < 0) { 2165 if (!abi_match) 2166 kfree(_link); 2167 return ret; 2168 } 2169 2170 /* offset by version-specific struct size and 2171 * real priv data size 2172 */ 2173 tplg->pos += size + le32_to_cpu(_link->priv.size); 2174 2175 if (!abi_match) 2176 kfree(_link); /* free the duplicated one */ 2177 } 2178 2179 return 0; 2180 } 2181 2182 /** 2183 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2184 * @tplg: topology context 2185 * @d: physical DAI configs. 2186 * 2187 * The physical dai should already be registered by the platform driver. 2188 * The platform driver should specify the DAI name and ID for matching. 2189 */ 2190 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2191 struct snd_soc_tplg_dai *d) 2192 { 2193 struct snd_soc_dai_link_component dai_component; 2194 struct snd_soc_dai *dai; 2195 struct snd_soc_dai_driver *dai_drv; 2196 struct snd_soc_pcm_stream *stream; 2197 struct snd_soc_tplg_stream_caps *caps; 2198 int ret; 2199 2200 memset(&dai_component, 0, sizeof(dai_component)); 2201 2202 dai_component.dai_name = d->dai_name; 2203 dai = snd_soc_find_dai(&dai_component); 2204 if (!dai) { 2205 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2206 d->dai_name); 2207 return -EINVAL; 2208 } 2209 2210 if (le32_to_cpu(d->dai_id) != dai->id) { 2211 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2212 d->dai_name); 2213 return -EINVAL; 2214 } 2215 2216 dai_drv = dai->driver; 2217 if (!dai_drv) 2218 return -EINVAL; 2219 2220 if (d->playback) { 2221 stream = &dai_drv->playback; 2222 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2223 ret = set_stream_info(tplg, stream, caps); 2224 if (ret < 0) 2225 goto err; 2226 } 2227 2228 if (d->capture) { 2229 stream = &dai_drv->capture; 2230 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2231 ret = set_stream_info(tplg, stream, caps); 2232 if (ret < 0) 2233 goto err; 2234 } 2235 2236 if (d->flag_mask) 2237 set_dai_flags(dai_drv, 2238 le32_to_cpu(d->flag_mask), 2239 le32_to_cpu(d->flags)); 2240 2241 /* pass control to component driver for optional further init */ 2242 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2243 if (ret < 0) { 2244 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 2245 goto err; 2246 } 2247 2248 return 0; 2249 2250 err: 2251 return ret; 2252 } 2253 2254 /* load physical DAI elements */ 2255 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2256 struct snd_soc_tplg_hdr *hdr) 2257 { 2258 int count; 2259 int i; 2260 2261 count = le32_to_cpu(hdr->count); 2262 2263 /* config the existing BE DAIs */ 2264 for (i = 0; i < count; i++) { 2265 struct snd_soc_tplg_dai *dai = (struct snd_soc_tplg_dai *)tplg->pos; 2266 int ret; 2267 2268 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 2269 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2270 return -EINVAL; 2271 } 2272 2273 ret = soc_tplg_dai_config(tplg, dai); 2274 if (ret < 0) { 2275 dev_err(tplg->dev, "ASoC: failed to configure DAI\n"); 2276 return ret; 2277 } 2278 2279 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 2280 } 2281 2282 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2283 return 0; 2284 } 2285 2286 /** 2287 * manifest_new_ver - Create a new version of manifest from the old version 2288 * of source. 2289 * @tplg: topology context 2290 * @src: old version of manifest as a source 2291 * @manifest: latest version of manifest created from the source 2292 * 2293 * Support from version 4. Users need free the returned manifest manually. 2294 */ 2295 static int manifest_new_ver(struct soc_tplg *tplg, 2296 struct snd_soc_tplg_manifest *src, 2297 struct snd_soc_tplg_manifest **manifest) 2298 { 2299 struct snd_soc_tplg_manifest *dest; 2300 struct snd_soc_tplg_manifest_v4 *src_v4; 2301 int size; 2302 2303 *manifest = NULL; 2304 2305 size = le32_to_cpu(src->size); 2306 if (size != sizeof(*src_v4)) { 2307 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", 2308 size); 2309 if (size) 2310 return -EINVAL; 2311 src->size = cpu_to_le32(sizeof(*src_v4)); 2312 } 2313 2314 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2315 2316 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2317 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size), 2318 GFP_KERNEL); 2319 if (!dest) 2320 return -ENOMEM; 2321 2322 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2323 dest->control_elems = src_v4->control_elems; 2324 dest->widget_elems = src_v4->widget_elems; 2325 dest->graph_elems = src_v4->graph_elems; 2326 dest->pcm_elems = src_v4->pcm_elems; 2327 dest->dai_link_elems = src_v4->dai_link_elems; 2328 dest->priv.size = src_v4->priv.size; 2329 if (dest->priv.size) 2330 memcpy(dest->priv.data, src_v4->priv.data, 2331 le32_to_cpu(src_v4->priv.size)); 2332 2333 *manifest = dest; 2334 return 0; 2335 } 2336 2337 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2338 struct snd_soc_tplg_hdr *hdr) 2339 { 2340 struct snd_soc_tplg_manifest *manifest, *_manifest; 2341 bool abi_match; 2342 int ret = 0; 2343 2344 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2345 2346 /* check ABI version by size, create a new manifest if abi not match */ 2347 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) { 2348 abi_match = true; 2349 _manifest = manifest; 2350 } else { 2351 abi_match = false; 2352 2353 ret = manifest_new_ver(tplg, manifest, &_manifest); 2354 if (ret < 0) 2355 return ret; 2356 } 2357 2358 /* pass control to component driver for optional further init */ 2359 if (tplg->ops && tplg->ops->manifest) 2360 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest); 2361 2362 if (!abi_match) /* free the duplicated one */ 2363 kfree(_manifest); 2364 2365 return ret; 2366 } 2367 2368 /* validate header magic, size and type */ 2369 static int soc_tplg_valid_header(struct soc_tplg *tplg, 2370 struct snd_soc_tplg_hdr *hdr) 2371 { 2372 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 2373 dev_err(tplg->dev, 2374 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2375 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2376 tplg->fw->size); 2377 return -EINVAL; 2378 } 2379 2380 if (soc_tplg_get_hdr_offset(tplg) + le32_to_cpu(hdr->payload_size) >= tplg->fw->size) { 2381 dev_err(tplg->dev, 2382 "ASoC: invalid header of type %d at offset %ld payload_size %d\n", 2383 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2384 hdr->payload_size); 2385 return -EINVAL; 2386 } 2387 2388 /* big endian firmware objects not supported atm */ 2389 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) { 2390 dev_err(tplg->dev, 2391 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2392 tplg->pass, hdr->magic, 2393 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2394 return -EINVAL; 2395 } 2396 2397 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2398 dev_err(tplg->dev, 2399 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2400 tplg->pass, hdr->magic, 2401 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2402 return -EINVAL; 2403 } 2404 2405 /* Support ABI from version 4 */ 2406 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2407 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2408 dev_err(tplg->dev, 2409 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2410 tplg->pass, hdr->abi, 2411 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2412 tplg->fw->size); 2413 return -EINVAL; 2414 } 2415 2416 if (hdr->payload_size == 0) { 2417 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2418 soc_tplg_get_hdr_offset(tplg)); 2419 return -EINVAL; 2420 } 2421 2422 return 0; 2423 } 2424 2425 /* check header type and call appropriate handler */ 2426 static int soc_tplg_load_header(struct soc_tplg *tplg, 2427 struct snd_soc_tplg_hdr *hdr) 2428 { 2429 int (*elem_load)(struct soc_tplg *tplg, 2430 struct snd_soc_tplg_hdr *hdr); 2431 unsigned int hdr_pass; 2432 2433 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2434 2435 tplg->index = le32_to_cpu(hdr->index); 2436 2437 switch (le32_to_cpu(hdr->type)) { 2438 case SND_SOC_TPLG_TYPE_MIXER: 2439 case SND_SOC_TPLG_TYPE_ENUM: 2440 case SND_SOC_TPLG_TYPE_BYTES: 2441 hdr_pass = SOC_TPLG_PASS_CONTROL; 2442 elem_load = soc_tplg_kcontrol_elems_load; 2443 break; 2444 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2445 hdr_pass = SOC_TPLG_PASS_GRAPH; 2446 elem_load = soc_tplg_dapm_graph_elems_load; 2447 break; 2448 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2449 hdr_pass = SOC_TPLG_PASS_WIDGET; 2450 elem_load = soc_tplg_dapm_widget_elems_load; 2451 break; 2452 case SND_SOC_TPLG_TYPE_PCM: 2453 hdr_pass = SOC_TPLG_PASS_PCM_DAI; 2454 elem_load = soc_tplg_pcm_elems_load; 2455 break; 2456 case SND_SOC_TPLG_TYPE_DAI: 2457 hdr_pass = SOC_TPLG_PASS_BE_DAI; 2458 elem_load = soc_tplg_dai_elems_load; 2459 break; 2460 case SND_SOC_TPLG_TYPE_DAI_LINK: 2461 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2462 /* physical link configurations */ 2463 hdr_pass = SOC_TPLG_PASS_LINK; 2464 elem_load = soc_tplg_link_elems_load; 2465 break; 2466 case SND_SOC_TPLG_TYPE_MANIFEST: 2467 hdr_pass = SOC_TPLG_PASS_MANIFEST; 2468 elem_load = soc_tplg_manifest_load; 2469 break; 2470 default: 2471 /* bespoke vendor data object */ 2472 hdr_pass = SOC_TPLG_PASS_VENDOR; 2473 elem_load = soc_tplg_vendor_load; 2474 break; 2475 } 2476 2477 if (tplg->pass == hdr_pass) { 2478 dev_dbg(tplg->dev, 2479 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2480 hdr->payload_size, hdr->type, hdr->version, 2481 hdr->vendor_type, tplg->pass); 2482 return elem_load(tplg, hdr); 2483 } 2484 2485 return 0; 2486 } 2487 2488 /* process the topology file headers */ 2489 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2490 { 2491 int ret; 2492 2493 /* process the header types from start to end */ 2494 for (tplg->pass = SOC_TPLG_PASS_START; tplg->pass <= SOC_TPLG_PASS_END; tplg->pass++) { 2495 struct snd_soc_tplg_hdr *hdr; 2496 2497 tplg->hdr_pos = tplg->fw->data; 2498 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2499 2500 while (!soc_tplg_is_eof(tplg)) { 2501 2502 /* make sure header is valid before loading */ 2503 ret = soc_tplg_valid_header(tplg, hdr); 2504 if (ret < 0) { 2505 dev_err(tplg->dev, 2506 "ASoC: topology: invalid header: %d\n", ret); 2507 return ret; 2508 } 2509 2510 /* load the header object */ 2511 ret = soc_tplg_load_header(tplg, hdr); 2512 if (ret < 0) { 2513 dev_err(tplg->dev, 2514 "ASoC: topology: could not load header: %d\n", ret); 2515 return ret; 2516 } 2517 2518 /* goto next header */ 2519 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2520 sizeof(struct snd_soc_tplg_hdr); 2521 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2522 } 2523 2524 } 2525 2526 /* signal DAPM we are complete */ 2527 ret = soc_tplg_dapm_complete(tplg); 2528 if (ret < 0) 2529 dev_err(tplg->dev, 2530 "ASoC: failed to initialise DAPM from Firmware\n"); 2531 2532 return ret; 2533 } 2534 2535 static int soc_tplg_load(struct soc_tplg *tplg) 2536 { 2537 int ret; 2538 2539 ret = soc_tplg_process_headers(tplg); 2540 if (ret == 0) 2541 return soc_tplg_complete(tplg); 2542 2543 return ret; 2544 } 2545 2546 /* load audio component topology from "firmware" file */ 2547 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2548 struct snd_soc_tplg_ops *ops, const struct firmware *fw) 2549 { 2550 struct soc_tplg tplg; 2551 int ret; 2552 2553 /* 2554 * check if we have sane parameters: 2555 * comp - needs to exist to keep and reference data while parsing 2556 * comp->card - used for setting card related parameters 2557 * comp->card->dev - used for resource management and prints 2558 * fw - we need it, as it is the very thing we parse 2559 */ 2560 if (!comp || !comp->card || !comp->card->dev || !fw) 2561 return -EINVAL; 2562 2563 /* setup parsing context */ 2564 memset(&tplg, 0, sizeof(tplg)); 2565 tplg.fw = fw; 2566 tplg.dev = comp->card->dev; 2567 tplg.comp = comp; 2568 if (ops) { 2569 tplg.ops = ops; 2570 tplg.io_ops = ops->io_ops; 2571 tplg.io_ops_count = ops->io_ops_count; 2572 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2573 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2574 } 2575 2576 ret = soc_tplg_load(&tplg); 2577 /* free the created components if fail to load topology */ 2578 if (ret) 2579 snd_soc_tplg_component_remove(comp); 2580 2581 return ret; 2582 } 2583 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2584 2585 /* remove dynamic controls from the component driver */ 2586 int snd_soc_tplg_component_remove(struct snd_soc_component *comp) 2587 { 2588 struct snd_card *card = comp->card->snd_card; 2589 struct snd_soc_dobj *dobj, *next_dobj; 2590 int pass; 2591 2592 /* process the header types from end to start */ 2593 for (pass = SOC_TPLG_PASS_END; pass >= SOC_TPLG_PASS_START; pass--) { 2594 2595 /* remove mixer controls */ 2596 down_write(&card->controls_rwsem); 2597 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2598 list) { 2599 2600 switch (dobj->type) { 2601 case SND_SOC_DOBJ_BYTES: 2602 case SND_SOC_DOBJ_ENUM: 2603 case SND_SOC_DOBJ_MIXER: 2604 soc_tplg_remove_kcontrol(comp, dobj, pass); 2605 break; 2606 case SND_SOC_DOBJ_GRAPH: 2607 soc_tplg_remove_route(comp, dobj, pass); 2608 break; 2609 case SND_SOC_DOBJ_WIDGET: 2610 soc_tplg_remove_widget(comp, dobj, pass); 2611 break; 2612 case SND_SOC_DOBJ_PCM: 2613 soc_tplg_remove_dai(comp, dobj, pass); 2614 break; 2615 case SND_SOC_DOBJ_DAI_LINK: 2616 soc_tplg_remove_link(comp, dobj, pass); 2617 break; 2618 case SND_SOC_DOBJ_BACKEND_LINK: 2619 /* 2620 * call link_unload ops if extra 2621 * deinitialization is needed. 2622 */ 2623 remove_backend_link(comp, dobj, pass); 2624 break; 2625 default: 2626 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2627 dobj->type); 2628 break; 2629 } 2630 } 2631 up_write(&card->controls_rwsem); 2632 } 2633 2634 /* let caller know if FW can be freed when no objects are left */ 2635 return !list_empty(&comp->dobj_list); 2636 } 2637 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2638