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_MIXER 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_PINS 6 48 #define SOC_TPLG_PASS_BE_DAI 7 49 #define SOC_TPLG_PASS_LINK 8 50 51 #define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST 52 #define SOC_TPLG_PASS_END SOC_TPLG_PASS_LINK 53 54 /* topology context */ 55 struct soc_tplg { 56 const struct firmware *fw; 57 58 /* runtime FW parsing */ 59 const u8 *pos; /* read postion */ 60 const u8 *hdr_pos; /* header position */ 61 unsigned int pass; /* pass number */ 62 63 /* component caller */ 64 struct device *dev; 65 struct snd_soc_component *comp; 66 u32 index; /* current block index */ 67 68 /* vendor specific kcontrol operations */ 69 const struct snd_soc_tplg_kcontrol_ops *io_ops; 70 int io_ops_count; 71 72 /* vendor specific bytes ext handlers, for TLV bytes controls */ 73 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops; 74 int bytes_ext_ops_count; 75 76 /* optional fw loading callbacks to component drivers */ 77 struct snd_soc_tplg_ops *ops; 78 }; 79 80 static int soc_tplg_process_headers(struct soc_tplg *tplg); 81 static int soc_tplg_complete(struct soc_tplg *tplg); 82 83 /* check we dont overflow the data for this control chunk */ 84 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size, 85 unsigned int count, size_t bytes, const char *elem_type) 86 { 87 const u8 *end = tplg->pos + elem_size * count; 88 89 if (end > tplg->fw->data + tplg->fw->size) { 90 dev_err(tplg->dev, "ASoC: %s overflow end of data\n", 91 elem_type); 92 return -EINVAL; 93 } 94 95 /* check there is enough room in chunk for control. 96 extra bytes at the end of control are for vendor data here */ 97 if (elem_size * count > bytes) { 98 dev_err(tplg->dev, 99 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n", 100 elem_type, count, elem_size, bytes); 101 return -EINVAL; 102 } 103 104 return 0; 105 } 106 107 static inline int soc_tplg_is_eof(struct soc_tplg *tplg) 108 { 109 const u8 *end = tplg->hdr_pos; 110 111 if (end >= tplg->fw->data + tplg->fw->size) 112 return 1; 113 return 0; 114 } 115 116 static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg) 117 { 118 return (unsigned long)(tplg->hdr_pos - tplg->fw->data); 119 } 120 121 static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg) 122 { 123 return (unsigned long)(tplg->pos - tplg->fw->data); 124 } 125 126 /* mapping of Kcontrol types and associated operations. */ 127 static const struct snd_soc_tplg_kcontrol_ops io_ops[] = { 128 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw, 129 snd_soc_put_volsw, snd_soc_info_volsw}, 130 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx, 131 snd_soc_put_volsw_sx, NULL}, 132 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double, 133 snd_soc_put_enum_double, snd_soc_info_enum_double}, 134 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double, 135 snd_soc_put_enum_double, NULL}, 136 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get, 137 snd_soc_bytes_put, snd_soc_bytes_info}, 138 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range, 139 snd_soc_put_volsw_range, snd_soc_info_volsw_range}, 140 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx, 141 snd_soc_put_xr_sx, snd_soc_info_xr_sx}, 142 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe, 143 snd_soc_put_strobe, NULL}, 144 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw, 145 snd_soc_dapm_put_volsw, snd_soc_info_volsw}, 146 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double, 147 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double}, 148 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double, 149 snd_soc_dapm_put_enum_double, NULL}, 150 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double, 151 snd_soc_dapm_put_enum_double, NULL}, 152 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch, 153 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch}, 154 }; 155 156 struct soc_tplg_map { 157 int uid; 158 int kid; 159 }; 160 161 /* mapping of widget types from UAPI IDs to kernel IDs */ 162 static const struct soc_tplg_map dapm_map[] = { 163 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input}, 164 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output}, 165 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux}, 166 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer}, 167 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga}, 168 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv}, 169 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc}, 170 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac}, 171 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch}, 172 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre}, 173 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post}, 174 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in}, 175 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out}, 176 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in}, 177 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out}, 178 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link}, 179 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer}, 180 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler}, 181 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect}, 182 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen}, 183 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src}, 184 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc}, 185 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder}, 186 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder}, 187 }; 188 189 static int tplc_chan_get_reg(struct soc_tplg *tplg, 190 struct snd_soc_tplg_channel *chan, int map) 191 { 192 int i; 193 194 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 195 if (le32_to_cpu(chan[i].id) == map) 196 return le32_to_cpu(chan[i].reg); 197 } 198 199 return -EINVAL; 200 } 201 202 static int tplc_chan_get_shift(struct soc_tplg *tplg, 203 struct snd_soc_tplg_channel *chan, int map) 204 { 205 int i; 206 207 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 208 if (le32_to_cpu(chan[i].id) == map) 209 return le32_to_cpu(chan[i].shift); 210 } 211 212 return -EINVAL; 213 } 214 215 static int get_widget_id(int tplg_type) 216 { 217 int i; 218 219 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) { 220 if (tplg_type == dapm_map[i].uid) 221 return dapm_map[i].kid; 222 } 223 224 return -EINVAL; 225 } 226 227 static inline void soc_bind_err(struct soc_tplg *tplg, 228 struct snd_soc_tplg_ctl_hdr *hdr, int index) 229 { 230 dev_err(tplg->dev, 231 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n", 232 hdr->ops.get, hdr->ops.put, hdr->ops.info, index, 233 soc_tplg_get_offset(tplg)); 234 } 235 236 static inline void soc_control_err(struct soc_tplg *tplg, 237 struct snd_soc_tplg_ctl_hdr *hdr, const char *name) 238 { 239 dev_err(tplg->dev, 240 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n", 241 name, hdr->ops.get, hdr->ops.put, hdr->ops.info, 242 soc_tplg_get_offset(tplg)); 243 } 244 245 /* pass vendor data to component driver for processing */ 246 static int soc_tplg_vendor_load(struct soc_tplg *tplg, 247 struct snd_soc_tplg_hdr *hdr) 248 { 249 int ret = 0; 250 251 if (tplg->ops && tplg->ops->vendor_load) 252 ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr); 253 else { 254 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n", 255 hdr->vendor_type); 256 return -EINVAL; 257 } 258 259 if (ret < 0) 260 dev_err(tplg->dev, 261 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n", 262 soc_tplg_get_hdr_offset(tplg), 263 soc_tplg_get_hdr_offset(tplg), 264 hdr->type, hdr->vendor_type); 265 return ret; 266 } 267 268 /* optionally pass new dynamic widget to component driver. This is mainly for 269 * external widgets where we can assign private data/ops */ 270 static int soc_tplg_widget_load(struct soc_tplg *tplg, 271 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 272 { 273 if (tplg->ops && tplg->ops->widget_load) 274 return tplg->ops->widget_load(tplg->comp, tplg->index, w, 275 tplg_w); 276 277 return 0; 278 } 279 280 /* optionally pass new dynamic widget to component driver. This is mainly for 281 * external widgets where we can assign private data/ops */ 282 static int soc_tplg_widget_ready(struct soc_tplg *tplg, 283 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 284 { 285 if (tplg->ops && tplg->ops->widget_ready) 286 return tplg->ops->widget_ready(tplg->comp, tplg->index, w, 287 tplg_w); 288 289 return 0; 290 } 291 292 /* pass DAI configurations to component driver for extra initialization */ 293 static int soc_tplg_dai_load(struct soc_tplg *tplg, 294 struct snd_soc_dai_driver *dai_drv, 295 struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai) 296 { 297 if (tplg->ops && tplg->ops->dai_load) 298 return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv, 299 pcm, dai); 300 301 return 0; 302 } 303 304 /* pass link configurations to component driver for extra initialization */ 305 static int soc_tplg_dai_link_load(struct soc_tplg *tplg, 306 struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg) 307 { 308 if (tplg->ops && tplg->ops->link_load) 309 return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg); 310 311 return 0; 312 } 313 314 /* tell the component driver that all firmware has been loaded in this request */ 315 static int soc_tplg_complete(struct soc_tplg *tplg) 316 { 317 if (tplg->ops && tplg->ops->complete) 318 return tplg->ops->complete(tplg->comp); 319 320 return 0; 321 } 322 323 /* add a dynamic kcontrol */ 324 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev, 325 const struct snd_kcontrol_new *control_new, const char *prefix, 326 void *data, struct snd_kcontrol **kcontrol) 327 { 328 int err; 329 330 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix); 331 if (*kcontrol == NULL) { 332 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n", 333 control_new->name); 334 return -ENOMEM; 335 } 336 337 err = snd_ctl_add(card, *kcontrol); 338 if (err < 0) { 339 dev_err(dev, "ASoC: Failed to add %s: %d\n", 340 control_new->name, err); 341 return err; 342 } 343 344 return 0; 345 } 346 347 /* add a dynamic kcontrol for component driver */ 348 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg, 349 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol) 350 { 351 struct snd_soc_component *comp = tplg->comp; 352 353 return soc_tplg_add_dcontrol(comp->card->snd_card, 354 comp->dev, k, comp->name_prefix, comp, kcontrol); 355 } 356 357 /* remove a mixer kcontrol */ 358 static void remove_mixer(struct snd_soc_component *comp, 359 struct snd_soc_dobj *dobj, int pass) 360 { 361 struct snd_card *card = comp->card->snd_card; 362 363 if (pass != SOC_TPLG_PASS_MIXER) 364 return; 365 366 if (dobj->ops && dobj->ops->control_unload) 367 dobj->ops->control_unload(comp, dobj); 368 369 snd_ctl_remove(card, dobj->control.kcontrol); 370 list_del(&dobj->list); 371 } 372 373 /* remove an enum kcontrol */ 374 static void remove_enum(struct snd_soc_component *comp, 375 struct snd_soc_dobj *dobj, int pass) 376 { 377 struct snd_card *card = comp->card->snd_card; 378 379 if (pass != SOC_TPLG_PASS_MIXER) 380 return; 381 382 if (dobj->ops && dobj->ops->control_unload) 383 dobj->ops->control_unload(comp, dobj); 384 385 snd_ctl_remove(card, dobj->control.kcontrol); 386 list_del(&dobj->list); 387 } 388 389 /* remove a byte kcontrol */ 390 static void remove_bytes(struct snd_soc_component *comp, 391 struct snd_soc_dobj *dobj, int pass) 392 { 393 struct snd_card *card = comp->card->snd_card; 394 395 if (pass != SOC_TPLG_PASS_MIXER) 396 return; 397 398 if (dobj->ops && dobj->ops->control_unload) 399 dobj->ops->control_unload(comp, dobj); 400 401 snd_ctl_remove(card, dobj->control.kcontrol); 402 list_del(&dobj->list); 403 } 404 405 /* remove a route */ 406 static void remove_route(struct snd_soc_component *comp, 407 struct snd_soc_dobj *dobj, int pass) 408 { 409 if (pass != SOC_TPLG_PASS_GRAPH) 410 return; 411 412 if (dobj->ops && dobj->ops->dapm_route_unload) 413 dobj->ops->dapm_route_unload(comp, dobj); 414 415 list_del(&dobj->list); 416 } 417 418 /* remove a widget and it's kcontrols - routes must be removed first */ 419 static void remove_widget(struct snd_soc_component *comp, 420 struct snd_soc_dobj *dobj, int pass) 421 { 422 struct snd_card *card = comp->card->snd_card; 423 struct snd_soc_dapm_widget *w = 424 container_of(dobj, struct snd_soc_dapm_widget, dobj); 425 int i; 426 427 if (pass != SOC_TPLG_PASS_WIDGET) 428 return; 429 430 if (dobj->ops && dobj->ops->widget_unload) 431 dobj->ops->widget_unload(comp, dobj); 432 433 if (!w->kcontrols) 434 goto free_news; 435 436 for (i = 0; w->kcontrols && i < w->num_kcontrols; i++) 437 snd_ctl_remove(card, w->kcontrols[i]); 438 439 free_news: 440 441 list_del(&dobj->list); 442 443 /* widget w is freed by soc-dapm.c */ 444 } 445 446 /* remove DAI configurations */ 447 static void remove_dai(struct snd_soc_component *comp, 448 struct snd_soc_dobj *dobj, int pass) 449 { 450 struct snd_soc_dai_driver *dai_drv = 451 container_of(dobj, struct snd_soc_dai_driver, dobj); 452 struct snd_soc_dai *dai, *_dai; 453 454 if (pass != SOC_TPLG_PASS_PCM_DAI) 455 return; 456 457 if (dobj->ops && dobj->ops->dai_unload) 458 dobj->ops->dai_unload(comp, dobj); 459 460 for_each_component_dais_safe(comp, dai, _dai) 461 if (dai->driver == dai_drv) 462 snd_soc_unregister_dai(dai); 463 464 list_del(&dobj->list); 465 } 466 467 /* remove link configurations */ 468 static void remove_link(struct snd_soc_component *comp, 469 struct snd_soc_dobj *dobj, int pass) 470 { 471 struct snd_soc_dai_link *link = 472 container_of(dobj, struct snd_soc_dai_link, dobj); 473 474 if (pass != SOC_TPLG_PASS_PCM_DAI) 475 return; 476 477 if (dobj->ops && dobj->ops->link_unload) 478 dobj->ops->link_unload(comp, dobj); 479 480 list_del(&dobj->list); 481 snd_soc_remove_pcm_runtime(comp->card, 482 snd_soc_get_pcm_runtime(comp->card, link)); 483 } 484 485 /* unload dai link */ 486 static void remove_backend_link(struct snd_soc_component *comp, 487 struct snd_soc_dobj *dobj, int pass) 488 { 489 if (pass != SOC_TPLG_PASS_LINK) 490 return; 491 492 if (dobj->ops && dobj->ops->link_unload) 493 dobj->ops->link_unload(comp, dobj); 494 495 /* 496 * We don't free the link here as what remove_link() do since BE 497 * links are not allocated by topology. 498 * We however need to reset the dobj type to its initial values 499 */ 500 dobj->type = SND_SOC_DOBJ_NONE; 501 list_del(&dobj->list); 502 } 503 504 /* bind a kcontrol to it's IO handlers */ 505 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr, 506 struct snd_kcontrol_new *k, 507 const struct soc_tplg *tplg) 508 { 509 const struct snd_soc_tplg_kcontrol_ops *ops; 510 const struct snd_soc_tplg_bytes_ext_ops *ext_ops; 511 int num_ops, i; 512 513 if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES 514 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER 515 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE 516 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 517 struct soc_bytes_ext *sbe; 518 struct snd_soc_tplg_bytes_control *be; 519 520 sbe = (struct soc_bytes_ext *)k->private_value; 521 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr); 522 523 /* TLV bytes controls need standard kcontrol info handler, 524 * TLV callback and extended put/get handlers. 525 */ 526 k->info = snd_soc_bytes_info_ext; 527 k->tlv.c = snd_soc_bytes_tlv_callback; 528 529 /* 530 * When a topology-based implementation abuses the 531 * control interface and uses bytes_ext controls of 532 * more than 512 bytes, we need to disable the size 533 * checks, otherwise accesses to such controls will 534 * return an -EINVAL error and prevent the card from 535 * being configured. 536 */ 537 if (IS_ENABLED(CONFIG_SND_CTL_VALIDATION) && sbe->max > 512) 538 k->access |= SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK; 539 540 ext_ops = tplg->bytes_ext_ops; 541 num_ops = tplg->bytes_ext_ops_count; 542 for (i = 0; i < num_ops; i++) { 543 if (!sbe->put && 544 ext_ops[i].id == le32_to_cpu(be->ext_ops.put)) 545 sbe->put = ext_ops[i].put; 546 if (!sbe->get && 547 ext_ops[i].id == le32_to_cpu(be->ext_ops.get)) 548 sbe->get = ext_ops[i].get; 549 } 550 551 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) && !sbe->get) 552 return -EINVAL; 553 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) && !sbe->put) 554 return -EINVAL; 555 return 0; 556 } 557 558 /* try and map vendor specific kcontrol handlers first */ 559 ops = tplg->io_ops; 560 num_ops = tplg->io_ops_count; 561 for (i = 0; i < num_ops; i++) { 562 563 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 564 k->put = ops[i].put; 565 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 566 k->get = ops[i].get; 567 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 568 k->info = ops[i].info; 569 } 570 571 /* vendor specific handlers found ? */ 572 if (k->put && k->get && k->info) 573 return 0; 574 575 /* none found so try standard kcontrol handlers */ 576 ops = io_ops; 577 num_ops = ARRAY_SIZE(io_ops); 578 for (i = 0; i < num_ops; i++) { 579 580 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 581 k->put = ops[i].put; 582 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 583 k->get = ops[i].get; 584 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 585 k->info = ops[i].info; 586 } 587 588 /* standard handlers found ? */ 589 if (k->put && k->get && k->info) 590 return 0; 591 592 /* nothing to bind */ 593 return -EINVAL; 594 } 595 596 /* bind a widgets to it's evnt handlers */ 597 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w, 598 const struct snd_soc_tplg_widget_events *events, 599 int num_events, u16 event_type) 600 { 601 int i; 602 603 w->event = NULL; 604 605 for (i = 0; i < num_events; i++) { 606 if (event_type == events[i].type) { 607 608 /* found - so assign event */ 609 w->event = events[i].event_handler; 610 return 0; 611 } 612 } 613 614 /* not found */ 615 return -EINVAL; 616 } 617 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event); 618 619 /* optionally pass new dynamic kcontrol to component driver. */ 620 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg, 621 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr) 622 { 623 if (tplg->ops && tplg->ops->control_load) 624 return tplg->ops->control_load(tplg->comp, tplg->index, k, 625 hdr); 626 627 return 0; 628 } 629 630 631 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg, 632 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale) 633 { 634 unsigned int item_len = 2 * sizeof(unsigned int); 635 unsigned int *p; 636 637 p = devm_kzalloc(tplg->dev, item_len + 2 * sizeof(unsigned int), GFP_KERNEL); 638 if (!p) 639 return -ENOMEM; 640 641 p[0] = SNDRV_CTL_TLVT_DB_SCALE; 642 p[1] = item_len; 643 p[2] = le32_to_cpu(scale->min); 644 p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK) 645 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0); 646 647 kc->tlv.p = (void *)p; 648 return 0; 649 } 650 651 static int soc_tplg_create_tlv(struct soc_tplg *tplg, 652 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc) 653 { 654 struct snd_soc_tplg_ctl_tlv *tplg_tlv; 655 u32 access = le32_to_cpu(tc->access); 656 657 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)) 658 return 0; 659 660 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) { 661 tplg_tlv = &tc->tlv; 662 switch (le32_to_cpu(tplg_tlv->type)) { 663 case SNDRV_CTL_TLVT_DB_SCALE: 664 return soc_tplg_create_tlv_db_scale(tplg, kc, 665 &tplg_tlv->scale); 666 667 /* TODO: add support for other TLV types */ 668 default: 669 dev_dbg(tplg->dev, "Unsupported TLV type %d\n", 670 tplg_tlv->type); 671 return -EINVAL; 672 } 673 } 674 675 return 0; 676 } 677 678 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count, 679 size_t size) 680 { 681 struct snd_soc_tplg_bytes_control *be; 682 struct soc_bytes_ext *sbe; 683 struct snd_kcontrol_new kc; 684 int i; 685 int err = 0; 686 687 if (soc_tplg_check_elem_count(tplg, 688 sizeof(struct snd_soc_tplg_bytes_control), count, 689 size, "mixer bytes")) { 690 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n", 691 count); 692 return -EINVAL; 693 } 694 695 for (i = 0; i < count; i++) { 696 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 697 698 /* validate kcontrol */ 699 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 700 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 701 return -EINVAL; 702 703 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL); 704 if (sbe == NULL) 705 return -ENOMEM; 706 707 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 708 le32_to_cpu(be->priv.size)); 709 710 dev_dbg(tplg->dev, 711 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 712 be->hdr.name, be->hdr.access); 713 714 memset(&kc, 0, sizeof(kc)); 715 kc.name = be->hdr.name; 716 kc.private_value = (long)sbe; 717 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 718 kc.access = le32_to_cpu(be->hdr.access); 719 720 sbe->max = le32_to_cpu(be->max); 721 sbe->dobj.type = SND_SOC_DOBJ_BYTES; 722 sbe->dobj.ops = tplg->ops; 723 INIT_LIST_HEAD(&sbe->dobj.list); 724 725 /* map io handlers */ 726 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg); 727 if (err) { 728 soc_control_err(tplg, &be->hdr, be->hdr.name); 729 break; 730 } 731 732 /* pass control to driver for optional further init */ 733 err = soc_tplg_init_kcontrol(tplg, &kc, 734 (struct snd_soc_tplg_ctl_hdr *)be); 735 if (err < 0) { 736 dev_err(tplg->dev, "ASoC: failed to init %s\n", 737 be->hdr.name); 738 break; 739 } 740 741 /* register control here */ 742 err = soc_tplg_add_kcontrol(tplg, &kc, 743 &sbe->dobj.control.kcontrol); 744 if (err < 0) { 745 dev_err(tplg->dev, "ASoC: failed to add %s\n", 746 be->hdr.name); 747 break; 748 } 749 750 list_add(&sbe->dobj.list, &tplg->comp->dobj_list); 751 } 752 return err; 753 754 } 755 756 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count, 757 size_t size) 758 { 759 struct snd_soc_tplg_mixer_control *mc; 760 struct soc_mixer_control *sm; 761 struct snd_kcontrol_new kc; 762 int i; 763 int err = 0; 764 765 if (soc_tplg_check_elem_count(tplg, 766 sizeof(struct snd_soc_tplg_mixer_control), 767 count, size, "mixers")) { 768 769 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n", 770 count); 771 return -EINVAL; 772 } 773 774 for (i = 0; i < count; i++) { 775 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 776 777 /* validate kcontrol */ 778 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 779 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 780 return -EINVAL; 781 782 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL); 783 if (sm == NULL) 784 return -ENOMEM; 785 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 786 le32_to_cpu(mc->priv.size)); 787 788 dev_dbg(tplg->dev, 789 "ASoC: adding mixer kcontrol %s with access 0x%x\n", 790 mc->hdr.name, mc->hdr.access); 791 792 memset(&kc, 0, sizeof(kc)); 793 kc.name = mc->hdr.name; 794 kc.private_value = (long)sm; 795 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 796 kc.access = le32_to_cpu(mc->hdr.access); 797 798 /* we only support FL/FR channel mapping atm */ 799 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 800 SNDRV_CHMAP_FL); 801 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 802 SNDRV_CHMAP_FR); 803 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 804 SNDRV_CHMAP_FL); 805 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 806 SNDRV_CHMAP_FR); 807 808 sm->max = le32_to_cpu(mc->max); 809 sm->min = le32_to_cpu(mc->min); 810 sm->invert = le32_to_cpu(mc->invert); 811 sm->platform_max = le32_to_cpu(mc->platform_max); 812 sm->dobj.index = tplg->index; 813 sm->dobj.ops = tplg->ops; 814 sm->dobj.type = SND_SOC_DOBJ_MIXER; 815 INIT_LIST_HEAD(&sm->dobj.list); 816 817 /* map io handlers */ 818 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg); 819 if (err) { 820 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 821 break; 822 } 823 824 /* create any TLV data */ 825 err = soc_tplg_create_tlv(tplg, &kc, &mc->hdr); 826 if (err < 0) { 827 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 828 mc->hdr.name); 829 break; 830 } 831 832 /* pass control to driver for optional further init */ 833 err = soc_tplg_init_kcontrol(tplg, &kc, 834 (struct snd_soc_tplg_ctl_hdr *) mc); 835 if (err < 0) { 836 dev_err(tplg->dev, "ASoC: failed to init %s\n", 837 mc->hdr.name); 838 break; 839 } 840 841 /* register control here */ 842 err = soc_tplg_add_kcontrol(tplg, &kc, 843 &sm->dobj.control.kcontrol); 844 if (err < 0) { 845 dev_err(tplg->dev, "ASoC: failed to add %s\n", 846 mc->hdr.name); 847 break; 848 } 849 850 list_add(&sm->dobj.list, &tplg->comp->dobj_list); 851 } 852 853 return err; 854 } 855 856 static int soc_tplg_denum_create_texts(struct soc_tplg *tplg, struct soc_enum *se, 857 struct snd_soc_tplg_enum_control *ec) 858 { 859 int i, ret; 860 861 if (le32_to_cpu(ec->items) > ARRAY_SIZE(ec->texts)) 862 return -EINVAL; 863 864 se->dobj.control.dtexts = 865 devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL); 866 if (se->dobj.control.dtexts == NULL) 867 return -ENOMEM; 868 869 for (i = 0; i < le32_to_cpu(ec->items); i++) { 870 871 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 872 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 873 ret = -EINVAL; 874 goto err; 875 } 876 877 se->dobj.control.dtexts[i] = devm_kstrdup(tplg->dev, ec->texts[i], GFP_KERNEL); 878 if (!se->dobj.control.dtexts[i]) { 879 ret = -ENOMEM; 880 goto err; 881 } 882 } 883 884 se->items = le32_to_cpu(ec->items); 885 se->texts = (const char * const *)se->dobj.control.dtexts; 886 return 0; 887 888 err: 889 return ret; 890 } 891 892 static int soc_tplg_denum_create_values(struct soc_tplg *tplg, struct soc_enum *se, 893 struct snd_soc_tplg_enum_control *ec) 894 { 895 int i; 896 897 /* 898 * Following "if" checks if we have at most SND_SOC_TPLG_NUM_TEXTS 899 * values instead of using ARRAY_SIZE(ec->values) due to the fact that 900 * it is oversized for its purpose. Additionally it is done so because 901 * it is defined in UAPI header where it can't be easily changed. 902 */ 903 if (le32_to_cpu(ec->items) > SND_SOC_TPLG_NUM_TEXTS) 904 return -EINVAL; 905 906 se->dobj.control.dvalues = devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), 907 sizeof(*se->dobj.control.dvalues), 908 GFP_KERNEL); 909 if (!se->dobj.control.dvalues) 910 return -ENOMEM; 911 912 /* convert from little-endian */ 913 for (i = 0; i < le32_to_cpu(ec->items); i++) { 914 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]); 915 } 916 917 return 0; 918 } 919 920 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count, 921 size_t size) 922 { 923 struct snd_soc_tplg_enum_control *ec; 924 struct soc_enum *se; 925 struct snd_kcontrol_new kc; 926 int i; 927 int err = 0; 928 929 if (soc_tplg_check_elem_count(tplg, 930 sizeof(struct snd_soc_tplg_enum_control), 931 count, size, "enums")) { 932 933 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n", 934 count); 935 return -EINVAL; 936 } 937 938 for (i = 0; i < count; i++) { 939 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 940 941 /* validate kcontrol */ 942 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 943 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 944 return -EINVAL; 945 946 se = devm_kzalloc(tplg->dev, (sizeof(*se)), GFP_KERNEL); 947 if (se == NULL) 948 return -ENOMEM; 949 950 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 951 le32_to_cpu(ec->priv.size)); 952 953 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", 954 ec->hdr.name, ec->items); 955 956 memset(&kc, 0, sizeof(kc)); 957 kc.name = ec->hdr.name; 958 kc.private_value = (long)se; 959 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 960 kc.access = le32_to_cpu(ec->hdr.access); 961 962 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 963 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 964 SNDRV_CHMAP_FL); 965 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 966 SNDRV_CHMAP_FL); 967 968 se->mask = le32_to_cpu(ec->mask); 969 se->dobj.index = tplg->index; 970 se->dobj.type = SND_SOC_DOBJ_ENUM; 971 se->dobj.ops = tplg->ops; 972 INIT_LIST_HEAD(&se->dobj.list); 973 974 switch (le32_to_cpu(ec->hdr.ops.info)) { 975 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 976 case SND_SOC_TPLG_CTL_ENUM_VALUE: 977 err = soc_tplg_denum_create_values(tplg, se, ec); 978 if (err < 0) { 979 dev_err(tplg->dev, 980 "ASoC: could not create values for %s\n", 981 ec->hdr.name); 982 goto err_denum; 983 } 984 fallthrough; 985 case SND_SOC_TPLG_CTL_ENUM: 986 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 987 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 988 err = soc_tplg_denum_create_texts(tplg, se, ec); 989 if (err < 0) { 990 dev_err(tplg->dev, 991 "ASoC: could not create texts for %s\n", 992 ec->hdr.name); 993 goto err_denum; 994 } 995 break; 996 default: 997 err = -EINVAL; 998 dev_err(tplg->dev, 999 "ASoC: invalid enum control type %d for %s\n", 1000 ec->hdr.ops.info, ec->hdr.name); 1001 goto err_denum; 1002 } 1003 1004 /* map io handlers */ 1005 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg); 1006 if (err) { 1007 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1008 goto err_denum; 1009 } 1010 1011 /* pass control to driver for optional further init */ 1012 err = soc_tplg_init_kcontrol(tplg, &kc, 1013 (struct snd_soc_tplg_ctl_hdr *) ec); 1014 if (err < 0) { 1015 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1016 ec->hdr.name); 1017 goto err_denum; 1018 } 1019 1020 /* register control here */ 1021 err = soc_tplg_add_kcontrol(tplg, 1022 &kc, &se->dobj.control.kcontrol); 1023 if (err < 0) { 1024 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n", 1025 ec->hdr.name); 1026 goto err_denum; 1027 } 1028 1029 list_add(&se->dobj.list, &tplg->comp->dobj_list); 1030 } 1031 return 0; 1032 1033 err_denum: 1034 return err; 1035 } 1036 1037 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 1038 struct snd_soc_tplg_hdr *hdr) 1039 { 1040 int ret; 1041 int i; 1042 1043 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 1044 soc_tplg_get_offset(tplg)); 1045 1046 for (i = 0; i < le32_to_cpu(hdr->count); i++) { 1047 struct snd_soc_tplg_ctl_hdr *control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1048 1049 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) { 1050 dev_err(tplg->dev, "ASoC: invalid control size\n"); 1051 return -EINVAL; 1052 } 1053 1054 switch (le32_to_cpu(control_hdr->ops.info)) { 1055 case SND_SOC_TPLG_CTL_VOLSW: 1056 case SND_SOC_TPLG_CTL_STROBE: 1057 case SND_SOC_TPLG_CTL_VOLSW_SX: 1058 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1059 case SND_SOC_TPLG_CTL_RANGE: 1060 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1061 case SND_SOC_TPLG_DAPM_CTL_PIN: 1062 ret = soc_tplg_dmixer_create(tplg, 1, 1063 le32_to_cpu(hdr->payload_size)); 1064 break; 1065 case SND_SOC_TPLG_CTL_ENUM: 1066 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1067 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1068 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1069 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1070 ret = soc_tplg_denum_create(tplg, 1, 1071 le32_to_cpu(hdr->payload_size)); 1072 break; 1073 case SND_SOC_TPLG_CTL_BYTES: 1074 ret = soc_tplg_dbytes_create(tplg, 1, 1075 le32_to_cpu(hdr->payload_size)); 1076 break; 1077 default: 1078 soc_bind_err(tplg, control_hdr, i); 1079 return -EINVAL; 1080 } 1081 if (ret < 0) { 1082 dev_err(tplg->dev, "ASoC: invalid control\n"); 1083 return ret; 1084 } 1085 1086 } 1087 1088 return 0; 1089 } 1090 1091 /* optionally pass new dynamic kcontrol to component driver. */ 1092 static int soc_tplg_add_route(struct soc_tplg *tplg, 1093 struct snd_soc_dapm_route *route) 1094 { 1095 if (tplg->ops && tplg->ops->dapm_route_load) 1096 return tplg->ops->dapm_route_load(tplg->comp, tplg->index, 1097 route); 1098 1099 return 0; 1100 } 1101 1102 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1103 struct snd_soc_tplg_hdr *hdr) 1104 { 1105 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1106 struct snd_soc_tplg_dapm_graph_elem *elem; 1107 struct snd_soc_dapm_route **routes; 1108 int count, i; 1109 int ret = 0; 1110 1111 count = le32_to_cpu(hdr->count); 1112 1113 if (soc_tplg_check_elem_count(tplg, 1114 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1115 count, le32_to_cpu(hdr->payload_size), "graph")) { 1116 1117 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n", 1118 count); 1119 return -EINVAL; 1120 } 1121 1122 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, 1123 hdr->index); 1124 1125 /* allocate memory for pointer to array of dapm routes */ 1126 routes = kcalloc(count, sizeof(struct snd_soc_dapm_route *), 1127 GFP_KERNEL); 1128 if (!routes) 1129 return -ENOMEM; 1130 1131 /* 1132 * allocate memory for each dapm route in the array. 1133 * This needs to be done individually so that 1134 * each route can be freed when it is removed in remove_route(). 1135 */ 1136 for (i = 0; i < count; i++) { 1137 routes[i] = devm_kzalloc(tplg->dev, sizeof(*routes[i]), GFP_KERNEL); 1138 if (!routes[i]) 1139 return -ENOMEM; 1140 } 1141 1142 for (i = 0; i < count; i++) { 1143 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1144 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1145 1146 /* validate routes */ 1147 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1148 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1149 ret = -EINVAL; 1150 break; 1151 } 1152 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1153 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1154 ret = -EINVAL; 1155 break; 1156 } 1157 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1158 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1159 ret = -EINVAL; 1160 break; 1161 } 1162 1163 routes[i]->source = elem->source; 1164 routes[i]->sink = elem->sink; 1165 1166 /* set to NULL atm for tplg users */ 1167 routes[i]->connected = NULL; 1168 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0) 1169 routes[i]->control = NULL; 1170 else 1171 routes[i]->control = elem->control; 1172 1173 /* add route dobj to dobj_list */ 1174 routes[i]->dobj.type = SND_SOC_DOBJ_GRAPH; 1175 routes[i]->dobj.ops = tplg->ops; 1176 routes[i]->dobj.index = tplg->index; 1177 list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list); 1178 1179 ret = soc_tplg_add_route(tplg, routes[i]); 1180 if (ret < 0) { 1181 dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret); 1182 /* 1183 * this route was added to the list, it will 1184 * be freed in remove_route() so increment the 1185 * counter to skip it in the error handling 1186 * below. 1187 */ 1188 i++; 1189 break; 1190 } 1191 1192 /* add route, but keep going if some fail */ 1193 snd_soc_dapm_add_routes(dapm, routes[i], 1); 1194 } 1195 1196 /* 1197 * free pointer to array of dapm routes as this is no longer needed. 1198 * The memory allocated for each dapm route will be freed 1199 * when it is removed in remove_route(). 1200 */ 1201 kfree(routes); 1202 1203 return ret; 1204 } 1205 1206 static int soc_tplg_dapm_widget_dmixer_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1207 { 1208 struct soc_mixer_control *sm; 1209 struct snd_soc_tplg_mixer_control *mc; 1210 int err; 1211 1212 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1213 1214 /* validate kcontrol */ 1215 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1216 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1217 return -EINVAL; 1218 1219 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL); 1220 if (!sm) 1221 return -ENOMEM; 1222 1223 tplg->pos += sizeof(struct snd_soc_tplg_mixer_control) + 1224 le32_to_cpu(mc->priv.size); 1225 1226 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s\n", 1227 mc->hdr.name); 1228 1229 kc->private_value = (long)sm; 1230 kc->name = devm_kstrdup(tplg->dev, mc->hdr.name, GFP_KERNEL); 1231 if (!kc->name) 1232 return -ENOMEM; 1233 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1234 kc->access = le32_to_cpu(mc->hdr.access); 1235 1236 /* we only support FL/FR channel mapping atm */ 1237 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 1238 SNDRV_CHMAP_FL); 1239 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 1240 SNDRV_CHMAP_FR); 1241 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 1242 SNDRV_CHMAP_FL); 1243 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 1244 SNDRV_CHMAP_FR); 1245 1246 sm->max = le32_to_cpu(mc->max); 1247 sm->min = le32_to_cpu(mc->min); 1248 sm->invert = le32_to_cpu(mc->invert); 1249 sm->platform_max = le32_to_cpu(mc->platform_max); 1250 sm->dobj.index = tplg->index; 1251 INIT_LIST_HEAD(&sm->dobj.list); 1252 1253 /* map io handlers */ 1254 err = soc_tplg_kcontrol_bind_io(&mc->hdr, kc, tplg); 1255 if (err) { 1256 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1257 return err; 1258 } 1259 1260 /* create any TLV data */ 1261 err = soc_tplg_create_tlv(tplg, kc, &mc->hdr); 1262 if (err < 0) { 1263 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 1264 mc->hdr.name); 1265 return err; 1266 } 1267 1268 /* pass control to driver for optional further init */ 1269 err = soc_tplg_init_kcontrol(tplg, kc, 1270 (struct snd_soc_tplg_ctl_hdr *)mc); 1271 if (err < 0) { 1272 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1273 mc->hdr.name); 1274 return err; 1275 } 1276 1277 return 0; 1278 } 1279 1280 static int soc_tplg_dapm_widget_denum_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1281 { 1282 struct snd_soc_tplg_enum_control *ec; 1283 struct soc_enum *se; 1284 int err; 1285 1286 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1287 /* validate kcontrol */ 1288 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1289 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1290 return -EINVAL; 1291 1292 se = devm_kzalloc(tplg->dev, sizeof(*se), GFP_KERNEL); 1293 if (!se) 1294 return -ENOMEM; 1295 1296 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1297 le32_to_cpu(ec->priv.size)); 1298 1299 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1300 ec->hdr.name); 1301 1302 kc->private_value = (long)se; 1303 kc->name = devm_kstrdup(tplg->dev, ec->hdr.name, GFP_KERNEL); 1304 if (!kc->name) 1305 return -ENOMEM; 1306 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1307 kc->access = le32_to_cpu(ec->hdr.access); 1308 1309 /* we only support FL/FR channel mapping atm */ 1310 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1311 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1312 SNDRV_CHMAP_FL); 1313 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1314 SNDRV_CHMAP_FR); 1315 1316 se->items = le32_to_cpu(ec->items); 1317 se->mask = le32_to_cpu(ec->mask); 1318 se->dobj.index = tplg->index; 1319 1320 switch (le32_to_cpu(ec->hdr.ops.info)) { 1321 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1322 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1323 err = soc_tplg_denum_create_values(tplg, se, ec); 1324 if (err < 0) { 1325 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1326 ec->hdr.name); 1327 return err; 1328 } 1329 fallthrough; 1330 case SND_SOC_TPLG_CTL_ENUM: 1331 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1332 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1333 err = soc_tplg_denum_create_texts(tplg, se, ec); 1334 if (err < 0) { 1335 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1336 ec->hdr.name); 1337 return err; 1338 } 1339 break; 1340 default: 1341 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1342 ec->hdr.ops.info, ec->hdr.name); 1343 return -EINVAL; 1344 } 1345 1346 /* map io handlers */ 1347 err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, tplg); 1348 if (err) { 1349 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1350 return err; 1351 } 1352 1353 /* pass control to driver for optional further init */ 1354 err = soc_tplg_init_kcontrol(tplg, kc, 1355 (struct snd_soc_tplg_ctl_hdr *)ec); 1356 if (err < 0) { 1357 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1358 ec->hdr.name); 1359 return err; 1360 } 1361 1362 return 0; 1363 } 1364 1365 static int soc_tplg_dapm_widget_dbytes_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 1366 { 1367 struct snd_soc_tplg_bytes_control *be; 1368 struct soc_bytes_ext *sbe; 1369 int err; 1370 1371 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1372 1373 /* validate kcontrol */ 1374 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1375 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1376 return -EINVAL; 1377 1378 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL); 1379 if (!sbe) 1380 return -ENOMEM; 1381 1382 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1383 le32_to_cpu(be->priv.size)); 1384 1385 dev_dbg(tplg->dev, 1386 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1387 be->hdr.name, be->hdr.access); 1388 1389 kc->private_value = (long)sbe; 1390 kc->name = devm_kstrdup(tplg->dev, be->hdr.name, GFP_KERNEL); 1391 if (!kc->name) 1392 return -ENOMEM; 1393 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1394 kc->access = le32_to_cpu(be->hdr.access); 1395 1396 sbe->max = le32_to_cpu(be->max); 1397 INIT_LIST_HEAD(&sbe->dobj.list); 1398 1399 /* map standard io handlers and check for external handlers */ 1400 err = soc_tplg_kcontrol_bind_io(&be->hdr, kc, tplg); 1401 if (err) { 1402 soc_control_err(tplg, &be->hdr, be->hdr.name); 1403 return err; 1404 } 1405 1406 /* pass control to driver for optional further init */ 1407 err = soc_tplg_init_kcontrol(tplg, kc, 1408 (struct snd_soc_tplg_ctl_hdr *)be); 1409 if (err < 0) { 1410 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1411 be->hdr.name); 1412 return err; 1413 } 1414 1415 return 0; 1416 } 1417 1418 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1419 struct snd_soc_tplg_dapm_widget *w) 1420 { 1421 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1422 struct snd_soc_dapm_widget template, *widget; 1423 struct snd_soc_tplg_ctl_hdr *control_hdr; 1424 struct snd_soc_card *card = tplg->comp->card; 1425 unsigned int *kcontrol_type = NULL; 1426 struct snd_kcontrol_new *kc; 1427 int mixer_count = 0; 1428 int bytes_count = 0; 1429 int enum_count = 0; 1430 int ret = 0; 1431 int i; 1432 1433 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1434 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1435 return -EINVAL; 1436 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1437 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1438 return -EINVAL; 1439 1440 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1441 w->name, w->id); 1442 1443 memset(&template, 0, sizeof(template)); 1444 1445 /* map user to kernel widget ID */ 1446 template.id = get_widget_id(le32_to_cpu(w->id)); 1447 if ((int)template.id < 0) 1448 return template.id; 1449 1450 /* strings are allocated here, but used and freed by the widget */ 1451 template.name = kstrdup(w->name, GFP_KERNEL); 1452 if (!template.name) 1453 return -ENOMEM; 1454 template.sname = kstrdup(w->sname, GFP_KERNEL); 1455 if (!template.sname) { 1456 ret = -ENOMEM; 1457 goto err; 1458 } 1459 template.reg = le32_to_cpu(w->reg); 1460 template.shift = le32_to_cpu(w->shift); 1461 template.mask = le32_to_cpu(w->mask); 1462 template.subseq = le32_to_cpu(w->subseq); 1463 template.on_val = w->invert ? 0 : 1; 1464 template.off_val = w->invert ? 1 : 0; 1465 template.ignore_suspend = le32_to_cpu(w->ignore_suspend); 1466 template.event_flags = le16_to_cpu(w->event_flags); 1467 template.dobj.index = tplg->index; 1468 1469 tplg->pos += 1470 (sizeof(struct snd_soc_tplg_dapm_widget) + 1471 le32_to_cpu(w->priv.size)); 1472 1473 if (w->num_kcontrols == 0) { 1474 template.num_kcontrols = 0; 1475 goto widget; 1476 } 1477 1478 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1479 kc = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(*kc), GFP_KERNEL); 1480 if (!kc) 1481 goto err; 1482 1483 kcontrol_type = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(unsigned int), 1484 GFP_KERNEL); 1485 if (!kcontrol_type) 1486 goto err; 1487 1488 for (i = 0; i < w->num_kcontrols; i++) { 1489 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1490 switch (le32_to_cpu(control_hdr->ops.info)) { 1491 case SND_SOC_TPLG_CTL_VOLSW: 1492 case SND_SOC_TPLG_CTL_STROBE: 1493 case SND_SOC_TPLG_CTL_VOLSW_SX: 1494 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1495 case SND_SOC_TPLG_CTL_RANGE: 1496 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1497 /* volume mixer */ 1498 kc[i].index = mixer_count; 1499 kcontrol_type[i] = SND_SOC_TPLG_TYPE_MIXER; 1500 mixer_count++; 1501 ret = soc_tplg_dapm_widget_dmixer_create(tplg, &kc[i]); 1502 if (ret < 0) 1503 goto hdr_err; 1504 break; 1505 case SND_SOC_TPLG_CTL_ENUM: 1506 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1507 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1508 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1509 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1510 /* enumerated mixer */ 1511 kc[i].index = enum_count; 1512 kcontrol_type[i] = SND_SOC_TPLG_TYPE_ENUM; 1513 enum_count++; 1514 ret = soc_tplg_dapm_widget_denum_create(tplg, &kc[i]); 1515 if (ret < 0) 1516 goto hdr_err; 1517 break; 1518 case SND_SOC_TPLG_CTL_BYTES: 1519 /* bytes control */ 1520 kc[i].index = bytes_count; 1521 kcontrol_type[i] = SND_SOC_TPLG_TYPE_BYTES; 1522 bytes_count++; 1523 ret = soc_tplg_dapm_widget_dbytes_create(tplg, &kc[i]); 1524 if (ret < 0) 1525 goto hdr_err; 1526 break; 1527 default: 1528 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1529 control_hdr->ops.get, control_hdr->ops.put, 1530 le32_to_cpu(control_hdr->ops.info)); 1531 ret = -EINVAL; 1532 goto hdr_err; 1533 } 1534 } 1535 1536 template.kcontrol_news = kc; 1537 dev_dbg(tplg->dev, "ASoC: template %s with %d/%d/%d (mixer/enum/bytes) control\n", 1538 w->name, mixer_count, enum_count, bytes_count); 1539 1540 widget: 1541 ret = soc_tplg_widget_load(tplg, &template, w); 1542 if (ret < 0) 1543 goto hdr_err; 1544 1545 /* card dapm mutex is held by the core if we are loading topology 1546 * data during sound card init. */ 1547 if (card->instantiated) 1548 widget = snd_soc_dapm_new_control(dapm, &template); 1549 else 1550 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1551 if (IS_ERR(widget)) { 1552 ret = PTR_ERR(widget); 1553 goto hdr_err; 1554 } 1555 1556 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1557 widget->dobj.widget.kcontrol_type = kcontrol_type; 1558 widget->dobj.ops = tplg->ops; 1559 widget->dobj.index = tplg->index; 1560 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1561 1562 ret = soc_tplg_widget_ready(tplg, widget, w); 1563 if (ret < 0) 1564 goto ready_err; 1565 1566 kfree(template.sname); 1567 kfree(template.name); 1568 1569 return 0; 1570 1571 ready_err: 1572 remove_widget(widget->dapm->component, &widget->dobj, SOC_TPLG_PASS_WIDGET); 1573 snd_soc_dapm_free_widget(widget); 1574 hdr_err: 1575 kfree(template.sname); 1576 err: 1577 kfree(template.name); 1578 return ret; 1579 } 1580 1581 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1582 struct snd_soc_tplg_hdr *hdr) 1583 { 1584 int count, i; 1585 1586 count = le32_to_cpu(hdr->count); 1587 1588 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1589 1590 for (i = 0; i < count; i++) { 1591 struct snd_soc_tplg_dapm_widget *widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1592 int ret; 1593 1594 if (le32_to_cpu(widget->size) != sizeof(*widget)) { 1595 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1596 return -EINVAL; 1597 } 1598 1599 ret = soc_tplg_dapm_widget_create(tplg, widget); 1600 if (ret < 0) { 1601 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1602 widget->name); 1603 return ret; 1604 } 1605 } 1606 1607 return 0; 1608 } 1609 1610 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1611 { 1612 struct snd_soc_card *card = tplg->comp->card; 1613 int ret; 1614 1615 /* Card might not have been registered at this point. 1616 * If so, just return success. 1617 */ 1618 if (!card || !card->instantiated) { 1619 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1620 " widget card binding deferred\n"); 1621 return 0; 1622 } 1623 1624 ret = snd_soc_dapm_new_widgets(card); 1625 if (ret < 0) 1626 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1627 ret); 1628 1629 return 0; 1630 } 1631 1632 static int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream, 1633 struct snd_soc_tplg_stream_caps *caps) 1634 { 1635 stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL); 1636 if (!stream->stream_name) 1637 return -ENOMEM; 1638 1639 stream->channels_min = le32_to_cpu(caps->channels_min); 1640 stream->channels_max = le32_to_cpu(caps->channels_max); 1641 stream->rates = le32_to_cpu(caps->rates); 1642 stream->rate_min = le32_to_cpu(caps->rate_min); 1643 stream->rate_max = le32_to_cpu(caps->rate_max); 1644 stream->formats = le64_to_cpu(caps->formats); 1645 stream->sig_bits = le32_to_cpu(caps->sig_bits); 1646 1647 return 0; 1648 } 1649 1650 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1651 unsigned int flag_mask, unsigned int flags) 1652 { 1653 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1654 dai_drv->symmetric_rate = 1655 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1656 1657 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1658 dai_drv->symmetric_channels = 1659 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) ? 1660 1 : 0; 1661 1662 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1663 dai_drv->symmetric_sample_bits = 1664 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1665 1 : 0; 1666 } 1667 1668 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1669 struct snd_soc_tplg_pcm *pcm) 1670 { 1671 struct snd_soc_dai_driver *dai_drv; 1672 struct snd_soc_pcm_stream *stream; 1673 struct snd_soc_tplg_stream_caps *caps; 1674 struct snd_soc_dai *dai; 1675 struct snd_soc_dapm_context *dapm = 1676 snd_soc_component_get_dapm(tplg->comp); 1677 int ret; 1678 1679 dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1680 if (dai_drv == NULL) 1681 return -ENOMEM; 1682 1683 if (strlen(pcm->dai_name)) { 1684 dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1685 if (!dai_drv->name) { 1686 ret = -ENOMEM; 1687 goto err; 1688 } 1689 } 1690 dai_drv->id = le32_to_cpu(pcm->dai_id); 1691 1692 if (pcm->playback) { 1693 stream = &dai_drv->playback; 1694 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1695 ret = set_stream_info(tplg, stream, caps); 1696 if (ret < 0) 1697 goto err; 1698 } 1699 1700 if (pcm->capture) { 1701 stream = &dai_drv->capture; 1702 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1703 ret = set_stream_info(tplg, stream, caps); 1704 if (ret < 0) 1705 goto err; 1706 } 1707 1708 if (pcm->compress) 1709 dai_drv->compress_new = snd_soc_new_compress; 1710 1711 /* pass control to component driver for optional further init */ 1712 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1713 if (ret < 0) { 1714 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 1715 goto err; 1716 } 1717 1718 dai_drv->dobj.index = tplg->index; 1719 dai_drv->dobj.ops = tplg->ops; 1720 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1721 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1722 1723 /* register the DAI to the component */ 1724 dai = snd_soc_register_dai(tplg->comp, dai_drv, false); 1725 if (!dai) 1726 return -ENOMEM; 1727 1728 /* Create the DAI widgets here */ 1729 ret = snd_soc_dapm_new_dai_widgets(dapm, dai); 1730 if (ret != 0) { 1731 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret); 1732 snd_soc_unregister_dai(dai); 1733 return ret; 1734 } 1735 1736 return 0; 1737 1738 err: 1739 return ret; 1740 } 1741 1742 static void set_link_flags(struct snd_soc_dai_link *link, 1743 unsigned int flag_mask, unsigned int flags) 1744 { 1745 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1746 link->symmetric_rate = 1747 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1748 1749 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1750 link->symmetric_channels = 1751 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) ? 1752 1 : 0; 1753 1754 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1755 link->symmetric_sample_bits = 1756 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1757 1 : 0; 1758 1759 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1760 link->ignore_suspend = 1761 (flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) ? 1762 1 : 0; 1763 } 1764 1765 /* create the FE DAI link */ 1766 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1767 struct snd_soc_tplg_pcm *pcm) 1768 { 1769 struct snd_soc_dai_link *link; 1770 struct snd_soc_dai_link_component *dlc; 1771 int ret; 1772 1773 /* link + cpu + codec + platform */ 1774 link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1775 if (link == NULL) 1776 return -ENOMEM; 1777 1778 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1779 1780 link->cpus = &dlc[0]; 1781 link->codecs = &dlc[1]; 1782 link->platforms = &dlc[2]; 1783 1784 link->num_cpus = 1; 1785 link->num_codecs = 1; 1786 link->num_platforms = 1; 1787 1788 link->dobj.index = tplg->index; 1789 link->dobj.ops = tplg->ops; 1790 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1791 1792 if (strlen(pcm->pcm_name)) { 1793 link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1794 link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1795 if (!link->name || !link->stream_name) { 1796 ret = -ENOMEM; 1797 goto err; 1798 } 1799 } 1800 link->id = le32_to_cpu(pcm->pcm_id); 1801 1802 if (strlen(pcm->dai_name)) { 1803 link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1804 if (!link->cpus->dai_name) { 1805 ret = -ENOMEM; 1806 goto err; 1807 } 1808 } 1809 1810 link->codecs->name = "snd-soc-dummy"; 1811 link->codecs->dai_name = "snd-soc-dummy-dai"; 1812 1813 link->platforms->name = "snd-soc-dummy"; 1814 1815 /* enable DPCM */ 1816 link->dynamic = 1; 1817 link->dpcm_playback = le32_to_cpu(pcm->playback); 1818 link->dpcm_capture = le32_to_cpu(pcm->capture); 1819 if (pcm->flag_mask) 1820 set_link_flags(link, 1821 le32_to_cpu(pcm->flag_mask), 1822 le32_to_cpu(pcm->flags)); 1823 1824 /* pass control to component driver for optional further init */ 1825 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1826 if (ret < 0) { 1827 dev_err(tplg->dev, "ASoC: FE link loading failed\n"); 1828 goto err; 1829 } 1830 1831 ret = snd_soc_add_pcm_runtime(tplg->comp->card, link); 1832 if (ret < 0) { 1833 dev_err(tplg->dev, "ASoC: adding FE link failed\n"); 1834 goto err; 1835 } 1836 1837 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1838 1839 return 0; 1840 err: 1841 return ret; 1842 } 1843 1844 /* create a FE DAI and DAI link from the PCM object */ 1845 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1846 struct snd_soc_tplg_pcm *pcm) 1847 { 1848 int ret; 1849 1850 ret = soc_tplg_dai_create(tplg, pcm); 1851 if (ret < 0) 1852 return ret; 1853 1854 return soc_tplg_fe_link_create(tplg, pcm); 1855 } 1856 1857 /* copy stream caps from the old version 4 of source */ 1858 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 1859 struct snd_soc_tplg_stream_caps_v4 *src) 1860 { 1861 dest->size = cpu_to_le32(sizeof(*dest)); 1862 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1863 dest->formats = src->formats; 1864 dest->rates = src->rates; 1865 dest->rate_min = src->rate_min; 1866 dest->rate_max = src->rate_max; 1867 dest->channels_min = src->channels_min; 1868 dest->channels_max = src->channels_max; 1869 dest->periods_min = src->periods_min; 1870 dest->periods_max = src->periods_max; 1871 dest->period_size_min = src->period_size_min; 1872 dest->period_size_max = src->period_size_max; 1873 dest->buffer_size_min = src->buffer_size_min; 1874 dest->buffer_size_max = src->buffer_size_max; 1875 } 1876 1877 /** 1878 * pcm_new_ver - Create the new version of PCM from the old version. 1879 * @tplg: topology context 1880 * @src: older version of pcm as a source 1881 * @pcm: latest version of pcm created from the source 1882 * 1883 * Support from version 4. User should free the returned pcm manually. 1884 */ 1885 static int pcm_new_ver(struct soc_tplg *tplg, 1886 struct snd_soc_tplg_pcm *src, 1887 struct snd_soc_tplg_pcm **pcm) 1888 { 1889 struct snd_soc_tplg_pcm *dest; 1890 struct snd_soc_tplg_pcm_v4 *src_v4; 1891 int i; 1892 1893 *pcm = NULL; 1894 1895 if (le32_to_cpu(src->size) != sizeof(*src_v4)) { 1896 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 1897 return -EINVAL; 1898 } 1899 1900 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 1901 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 1902 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1903 if (!dest) 1904 return -ENOMEM; 1905 1906 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 1907 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1908 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1909 dest->pcm_id = src_v4->pcm_id; 1910 dest->dai_id = src_v4->dai_id; 1911 dest->playback = src_v4->playback; 1912 dest->capture = src_v4->capture; 1913 dest->compress = src_v4->compress; 1914 dest->num_streams = src_v4->num_streams; 1915 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 1916 memcpy(&dest->stream[i], &src_v4->stream[i], 1917 sizeof(struct snd_soc_tplg_stream)); 1918 1919 for (i = 0; i < 2; i++) 1920 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 1921 1922 *pcm = dest; 1923 return 0; 1924 } 1925 1926 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1927 struct snd_soc_tplg_hdr *hdr) 1928 { 1929 struct snd_soc_tplg_pcm *pcm, *_pcm; 1930 int count; 1931 int size; 1932 int i; 1933 bool abi_match; 1934 int ret; 1935 1936 count = le32_to_cpu(hdr->count); 1937 1938 /* check the element size and count */ 1939 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1940 size = le32_to_cpu(pcm->size); 1941 if (size > sizeof(struct snd_soc_tplg_pcm) 1942 || size < sizeof(struct snd_soc_tplg_pcm_v4)) { 1943 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1944 size); 1945 return -EINVAL; 1946 } 1947 1948 if (soc_tplg_check_elem_count(tplg, 1949 size, count, 1950 le32_to_cpu(hdr->payload_size), 1951 "PCM DAI")) { 1952 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 1953 count); 1954 return -EINVAL; 1955 } 1956 1957 for (i = 0; i < count; i++) { 1958 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1959 size = le32_to_cpu(pcm->size); 1960 1961 /* check ABI version by size, create a new version of pcm 1962 * if abi not match. 1963 */ 1964 if (size == sizeof(*pcm)) { 1965 abi_match = true; 1966 _pcm = pcm; 1967 } else { 1968 abi_match = false; 1969 ret = pcm_new_ver(tplg, pcm, &_pcm); 1970 if (ret < 0) 1971 return ret; 1972 } 1973 1974 /* create the FE DAIs and DAI links */ 1975 ret = soc_tplg_pcm_create(tplg, _pcm); 1976 if (ret < 0) { 1977 if (!abi_match) 1978 kfree(_pcm); 1979 return ret; 1980 } 1981 1982 /* offset by version-specific struct size and 1983 * real priv data size 1984 */ 1985 tplg->pos += size + le32_to_cpu(_pcm->priv.size); 1986 1987 if (!abi_match) 1988 kfree(_pcm); /* free the duplicated one */ 1989 } 1990 1991 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1992 1993 return 0; 1994 } 1995 1996 /** 1997 * set_link_hw_format - Set the HW audio format of the physical DAI link. 1998 * @link: &snd_soc_dai_link which should be updated 1999 * @cfg: physical link configs. 2000 * 2001 * Topology context contains a list of supported HW formats (configs) and 2002 * a default format ID for the physical link. This function will use this 2003 * default ID to choose the HW format to set the link's DAI format for init. 2004 */ 2005 static void set_link_hw_format(struct snd_soc_dai_link *link, 2006 struct snd_soc_tplg_link_config *cfg) 2007 { 2008 struct snd_soc_tplg_hw_config *hw_config; 2009 unsigned char bclk_provider, fsync_provider; 2010 unsigned char invert_bclk, invert_fsync; 2011 int i; 2012 2013 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 2014 hw_config = &cfg->hw_config[i]; 2015 if (hw_config->id != cfg->default_hw_config_id) 2016 continue; 2017 2018 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 2019 SND_SOC_DAIFMT_FORMAT_MASK; 2020 2021 /* clock gating */ 2022 switch (hw_config->clock_gated) { 2023 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 2024 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 2025 break; 2026 2027 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 2028 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 2029 break; 2030 2031 default: 2032 /* ignore the value */ 2033 break; 2034 } 2035 2036 /* clock signal polarity */ 2037 invert_bclk = hw_config->invert_bclk; 2038 invert_fsync = hw_config->invert_fsync; 2039 if (!invert_bclk && !invert_fsync) 2040 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 2041 else if (!invert_bclk && invert_fsync) 2042 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 2043 else if (invert_bclk && !invert_fsync) 2044 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 2045 else 2046 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 2047 2048 /* clock masters */ 2049 bclk_provider = (hw_config->bclk_provider == 2050 SND_SOC_TPLG_BCLK_CP); 2051 fsync_provider = (hw_config->fsync_provider == 2052 SND_SOC_TPLG_FSYNC_CP); 2053 if (bclk_provider && fsync_provider) 2054 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 2055 else if (!bclk_provider && fsync_provider) 2056 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFP; 2057 else if (bclk_provider && !fsync_provider) 2058 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFC; 2059 else 2060 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC; 2061 } 2062 } 2063 2064 /** 2065 * link_new_ver - Create a new physical link config from the old 2066 * version of source. 2067 * @tplg: topology context 2068 * @src: old version of phyical link config as a source 2069 * @link: latest version of physical link config created from the source 2070 * 2071 * Support from version 4. User need free the returned link config manually. 2072 */ 2073 static int link_new_ver(struct soc_tplg *tplg, 2074 struct snd_soc_tplg_link_config *src, 2075 struct snd_soc_tplg_link_config **link) 2076 { 2077 struct snd_soc_tplg_link_config *dest; 2078 struct snd_soc_tplg_link_config_v4 *src_v4; 2079 int i; 2080 2081 *link = NULL; 2082 2083 if (le32_to_cpu(src->size) != 2084 sizeof(struct snd_soc_tplg_link_config_v4)) { 2085 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2086 return -EINVAL; 2087 } 2088 2089 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2090 2091 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2092 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2093 if (!dest) 2094 return -ENOMEM; 2095 2096 dest->size = cpu_to_le32(sizeof(*dest)); 2097 dest->id = src_v4->id; 2098 dest->num_streams = src_v4->num_streams; 2099 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2100 memcpy(&dest->stream[i], &src_v4->stream[i], 2101 sizeof(struct snd_soc_tplg_stream)); 2102 2103 *link = dest; 2104 return 0; 2105 } 2106 2107 /** 2108 * snd_soc_find_dai_link - Find a DAI link 2109 * 2110 * @card: soc card 2111 * @id: DAI link ID to match 2112 * @name: DAI link name to match, optional 2113 * @stream_name: DAI link stream name to match, optional 2114 * 2115 * This function will search all existing DAI links of the soc card to 2116 * find the link of the same ID. Since DAI links may not have their 2117 * unique ID, so name and stream name should also match if being 2118 * specified. 2119 * 2120 * Return: pointer of DAI link, or NULL if not found. 2121 */ 2122 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, 2123 int id, const char *name, 2124 const char *stream_name) 2125 { 2126 struct snd_soc_pcm_runtime *rtd; 2127 2128 for_each_card_rtds(card, rtd) { 2129 struct snd_soc_dai_link *link = rtd->dai_link; 2130 2131 if (link->id != id) 2132 continue; 2133 2134 if (name && (!link->name || strcmp(name, link->name))) 2135 continue; 2136 2137 if (stream_name && (!link->stream_name 2138 || strcmp(stream_name, link->stream_name))) 2139 continue; 2140 2141 return link; 2142 } 2143 2144 return NULL; 2145 } 2146 2147 /* Find and configure an existing physical DAI link */ 2148 static int soc_tplg_link_config(struct soc_tplg *tplg, 2149 struct snd_soc_tplg_link_config *cfg) 2150 { 2151 struct snd_soc_dai_link *link; 2152 const char *name, *stream_name; 2153 size_t len; 2154 int ret; 2155 2156 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2157 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2158 return -EINVAL; 2159 else if (len) 2160 name = cfg->name; 2161 else 2162 name = NULL; 2163 2164 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2165 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2166 return -EINVAL; 2167 else if (len) 2168 stream_name = cfg->stream_name; 2169 else 2170 stream_name = NULL; 2171 2172 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 2173 name, stream_name); 2174 if (!link) { 2175 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2176 name, cfg->id); 2177 return -EINVAL; 2178 } 2179 2180 /* hw format */ 2181 if (cfg->num_hw_configs) 2182 set_link_hw_format(link, cfg); 2183 2184 /* flags */ 2185 if (cfg->flag_mask) 2186 set_link_flags(link, 2187 le32_to_cpu(cfg->flag_mask), 2188 le32_to_cpu(cfg->flags)); 2189 2190 /* pass control to component driver for optional further init */ 2191 ret = soc_tplg_dai_link_load(tplg, link, cfg); 2192 if (ret < 0) { 2193 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2194 return ret; 2195 } 2196 2197 /* for unloading it in snd_soc_tplg_component_remove */ 2198 link->dobj.index = tplg->index; 2199 link->dobj.ops = tplg->ops; 2200 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 2201 list_add(&link->dobj.list, &tplg->comp->dobj_list); 2202 2203 return 0; 2204 } 2205 2206 2207 /* Load physical link config elements from the topology context */ 2208 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2209 struct snd_soc_tplg_hdr *hdr) 2210 { 2211 struct snd_soc_tplg_link_config *link, *_link; 2212 int count; 2213 int size; 2214 int i, ret; 2215 bool abi_match; 2216 2217 count = le32_to_cpu(hdr->count); 2218 2219 /* check the element size and count */ 2220 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2221 size = le32_to_cpu(link->size); 2222 if (size > sizeof(struct snd_soc_tplg_link_config) 2223 || size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2224 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2225 size); 2226 return -EINVAL; 2227 } 2228 2229 if (soc_tplg_check_elem_count(tplg, 2230 size, count, 2231 le32_to_cpu(hdr->payload_size), 2232 "physical link config")) { 2233 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2234 count); 2235 return -EINVAL; 2236 } 2237 2238 /* config physical DAI links */ 2239 for (i = 0; i < count; i++) { 2240 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2241 size = le32_to_cpu(link->size); 2242 if (size == sizeof(*link)) { 2243 abi_match = true; 2244 _link = link; 2245 } else { 2246 abi_match = false; 2247 ret = link_new_ver(tplg, link, &_link); 2248 if (ret < 0) 2249 return ret; 2250 } 2251 2252 ret = soc_tplg_link_config(tplg, _link); 2253 if (ret < 0) { 2254 if (!abi_match) 2255 kfree(_link); 2256 return ret; 2257 } 2258 2259 /* offset by version-specific struct size and 2260 * real priv data size 2261 */ 2262 tplg->pos += size + le32_to_cpu(_link->priv.size); 2263 2264 if (!abi_match) 2265 kfree(_link); /* free the duplicated one */ 2266 } 2267 2268 return 0; 2269 } 2270 2271 /** 2272 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2273 * @tplg: topology context 2274 * @d: physical DAI configs. 2275 * 2276 * The physical dai should already be registered by the platform driver. 2277 * The platform driver should specify the DAI name and ID for matching. 2278 */ 2279 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2280 struct snd_soc_tplg_dai *d) 2281 { 2282 struct snd_soc_dai_link_component dai_component; 2283 struct snd_soc_dai *dai; 2284 struct snd_soc_dai_driver *dai_drv; 2285 struct snd_soc_pcm_stream *stream; 2286 struct snd_soc_tplg_stream_caps *caps; 2287 int ret; 2288 2289 memset(&dai_component, 0, sizeof(dai_component)); 2290 2291 dai_component.dai_name = d->dai_name; 2292 dai = snd_soc_find_dai(&dai_component); 2293 if (!dai) { 2294 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2295 d->dai_name); 2296 return -EINVAL; 2297 } 2298 2299 if (le32_to_cpu(d->dai_id) != dai->id) { 2300 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2301 d->dai_name); 2302 return -EINVAL; 2303 } 2304 2305 dai_drv = dai->driver; 2306 if (!dai_drv) 2307 return -EINVAL; 2308 2309 if (d->playback) { 2310 stream = &dai_drv->playback; 2311 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2312 ret = set_stream_info(tplg, stream, caps); 2313 if (ret < 0) 2314 goto err; 2315 } 2316 2317 if (d->capture) { 2318 stream = &dai_drv->capture; 2319 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2320 ret = set_stream_info(tplg, stream, caps); 2321 if (ret < 0) 2322 goto err; 2323 } 2324 2325 if (d->flag_mask) 2326 set_dai_flags(dai_drv, 2327 le32_to_cpu(d->flag_mask), 2328 le32_to_cpu(d->flags)); 2329 2330 /* pass control to component driver for optional further init */ 2331 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2332 if (ret < 0) { 2333 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 2334 goto err; 2335 } 2336 2337 return 0; 2338 2339 err: 2340 return ret; 2341 } 2342 2343 /* load physical DAI elements */ 2344 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2345 struct snd_soc_tplg_hdr *hdr) 2346 { 2347 int count; 2348 int i; 2349 2350 count = le32_to_cpu(hdr->count); 2351 2352 /* config the existing BE DAIs */ 2353 for (i = 0; i < count; i++) { 2354 struct snd_soc_tplg_dai *dai = (struct snd_soc_tplg_dai *)tplg->pos; 2355 int ret; 2356 2357 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 2358 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2359 return -EINVAL; 2360 } 2361 2362 ret = soc_tplg_dai_config(tplg, dai); 2363 if (ret < 0) { 2364 dev_err(tplg->dev, "ASoC: failed to configure DAI\n"); 2365 return ret; 2366 } 2367 2368 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 2369 } 2370 2371 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2372 return 0; 2373 } 2374 2375 /** 2376 * manifest_new_ver - Create a new version of manifest from the old version 2377 * of source. 2378 * @tplg: topology context 2379 * @src: old version of manifest as a source 2380 * @manifest: latest version of manifest created from the source 2381 * 2382 * Support from version 4. Users need free the returned manifest manually. 2383 */ 2384 static int manifest_new_ver(struct soc_tplg *tplg, 2385 struct snd_soc_tplg_manifest *src, 2386 struct snd_soc_tplg_manifest **manifest) 2387 { 2388 struct snd_soc_tplg_manifest *dest; 2389 struct snd_soc_tplg_manifest_v4 *src_v4; 2390 int size; 2391 2392 *manifest = NULL; 2393 2394 size = le32_to_cpu(src->size); 2395 if (size != sizeof(*src_v4)) { 2396 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", 2397 size); 2398 if (size) 2399 return -EINVAL; 2400 src->size = cpu_to_le32(sizeof(*src_v4)); 2401 } 2402 2403 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2404 2405 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2406 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size), 2407 GFP_KERNEL); 2408 if (!dest) 2409 return -ENOMEM; 2410 2411 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2412 dest->control_elems = src_v4->control_elems; 2413 dest->widget_elems = src_v4->widget_elems; 2414 dest->graph_elems = src_v4->graph_elems; 2415 dest->pcm_elems = src_v4->pcm_elems; 2416 dest->dai_link_elems = src_v4->dai_link_elems; 2417 dest->priv.size = src_v4->priv.size; 2418 if (dest->priv.size) 2419 memcpy(dest->priv.data, src_v4->priv.data, 2420 le32_to_cpu(src_v4->priv.size)); 2421 2422 *manifest = dest; 2423 return 0; 2424 } 2425 2426 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2427 struct snd_soc_tplg_hdr *hdr) 2428 { 2429 struct snd_soc_tplg_manifest *manifest, *_manifest; 2430 bool abi_match; 2431 int ret = 0; 2432 2433 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2434 2435 /* check ABI version by size, create a new manifest if abi not match */ 2436 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) { 2437 abi_match = true; 2438 _manifest = manifest; 2439 } else { 2440 abi_match = false; 2441 ret = manifest_new_ver(tplg, manifest, &_manifest); 2442 if (ret < 0) 2443 return ret; 2444 } 2445 2446 /* pass control to component driver for optional further init */ 2447 if (tplg->ops && tplg->ops->manifest) 2448 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest); 2449 2450 if (!abi_match) /* free the duplicated one */ 2451 kfree(_manifest); 2452 2453 return ret; 2454 } 2455 2456 /* validate header magic, size and type */ 2457 static int soc_valid_header(struct soc_tplg *tplg, 2458 struct snd_soc_tplg_hdr *hdr) 2459 { 2460 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2461 return 0; 2462 2463 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 2464 dev_err(tplg->dev, 2465 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2466 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2467 tplg->fw->size); 2468 return -EINVAL; 2469 } 2470 2471 /* big endian firmware objects not supported atm */ 2472 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) { 2473 dev_err(tplg->dev, 2474 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2475 tplg->pass, hdr->magic, 2476 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2477 return -EINVAL; 2478 } 2479 2480 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2481 dev_err(tplg->dev, 2482 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2483 tplg->pass, hdr->magic, 2484 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2485 return -EINVAL; 2486 } 2487 2488 /* Support ABI from version 4 */ 2489 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2490 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2491 dev_err(tplg->dev, 2492 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2493 tplg->pass, hdr->abi, 2494 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2495 tplg->fw->size); 2496 return -EINVAL; 2497 } 2498 2499 if (hdr->payload_size == 0) { 2500 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2501 soc_tplg_get_hdr_offset(tplg)); 2502 return -EINVAL; 2503 } 2504 2505 return 1; 2506 } 2507 2508 /* check header type and call appropriate handler */ 2509 static int soc_tplg_load_header(struct soc_tplg *tplg, 2510 struct snd_soc_tplg_hdr *hdr) 2511 { 2512 int (*elem_load)(struct soc_tplg *tplg, 2513 struct snd_soc_tplg_hdr *hdr); 2514 unsigned int hdr_pass; 2515 2516 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2517 2518 tplg->index = le32_to_cpu(hdr->index); 2519 2520 switch (le32_to_cpu(hdr->type)) { 2521 case SND_SOC_TPLG_TYPE_MIXER: 2522 case SND_SOC_TPLG_TYPE_ENUM: 2523 case SND_SOC_TPLG_TYPE_BYTES: 2524 hdr_pass = SOC_TPLG_PASS_MIXER; 2525 elem_load = soc_tplg_kcontrol_elems_load; 2526 break; 2527 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2528 hdr_pass = SOC_TPLG_PASS_GRAPH; 2529 elem_load = soc_tplg_dapm_graph_elems_load; 2530 break; 2531 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2532 hdr_pass = SOC_TPLG_PASS_WIDGET; 2533 elem_load = soc_tplg_dapm_widget_elems_load; 2534 break; 2535 case SND_SOC_TPLG_TYPE_PCM: 2536 hdr_pass = SOC_TPLG_PASS_PCM_DAI; 2537 elem_load = soc_tplg_pcm_elems_load; 2538 break; 2539 case SND_SOC_TPLG_TYPE_DAI: 2540 hdr_pass = SOC_TPLG_PASS_BE_DAI; 2541 elem_load = soc_tplg_dai_elems_load; 2542 break; 2543 case SND_SOC_TPLG_TYPE_DAI_LINK: 2544 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2545 /* physical link configurations */ 2546 hdr_pass = SOC_TPLG_PASS_LINK; 2547 elem_load = soc_tplg_link_elems_load; 2548 break; 2549 case SND_SOC_TPLG_TYPE_MANIFEST: 2550 hdr_pass = SOC_TPLG_PASS_MANIFEST; 2551 elem_load = soc_tplg_manifest_load; 2552 break; 2553 default: 2554 /* bespoke vendor data object */ 2555 hdr_pass = SOC_TPLG_PASS_VENDOR; 2556 elem_load = soc_tplg_vendor_load; 2557 break; 2558 } 2559 2560 if (tplg->pass == hdr_pass) { 2561 dev_dbg(tplg->dev, 2562 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2563 hdr->payload_size, hdr->type, hdr->version, 2564 hdr->vendor_type, tplg->pass); 2565 return elem_load(tplg, hdr); 2566 } 2567 2568 return 0; 2569 } 2570 2571 /* process the topology file headers */ 2572 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2573 { 2574 int ret; 2575 2576 tplg->pass = SOC_TPLG_PASS_START; 2577 2578 /* process the header types from start to end */ 2579 while (tplg->pass <= SOC_TPLG_PASS_END) { 2580 struct snd_soc_tplg_hdr *hdr; 2581 2582 tplg->hdr_pos = tplg->fw->data; 2583 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2584 2585 while (!soc_tplg_is_eof(tplg)) { 2586 2587 /* make sure header is valid before loading */ 2588 ret = soc_valid_header(tplg, hdr); 2589 if (ret < 0) { 2590 dev_err(tplg->dev, 2591 "ASoC: topology: invalid header: %d\n", ret); 2592 return ret; 2593 } else if (ret == 0) { 2594 break; 2595 } 2596 2597 /* load the header object */ 2598 ret = soc_tplg_load_header(tplg, hdr); 2599 if (ret < 0) { 2600 dev_err(tplg->dev, 2601 "ASoC: topology: could not load header: %d\n", ret); 2602 return ret; 2603 } 2604 2605 /* goto next header */ 2606 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2607 sizeof(struct snd_soc_tplg_hdr); 2608 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2609 } 2610 2611 /* next data type pass */ 2612 tplg->pass++; 2613 } 2614 2615 /* signal DAPM we are complete */ 2616 ret = soc_tplg_dapm_complete(tplg); 2617 if (ret < 0) 2618 dev_err(tplg->dev, 2619 "ASoC: failed to initialise DAPM from Firmware\n"); 2620 2621 return ret; 2622 } 2623 2624 static int soc_tplg_load(struct soc_tplg *tplg) 2625 { 2626 int ret; 2627 2628 ret = soc_tplg_process_headers(tplg); 2629 if (ret == 0) 2630 return soc_tplg_complete(tplg); 2631 2632 return ret; 2633 } 2634 2635 /* load audio component topology from "firmware" file */ 2636 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2637 struct snd_soc_tplg_ops *ops, const struct firmware *fw) 2638 { 2639 struct soc_tplg tplg; 2640 int ret; 2641 2642 /* 2643 * check if we have sane parameters: 2644 * comp - needs to exist to keep and reference data while parsing 2645 * comp->dev - used for resource management and prints 2646 * comp->card - used for setting card related parameters 2647 * fw - we need it, as it is the very thing we parse 2648 */ 2649 if (!comp || !comp->dev || !comp->card || !fw) 2650 return -EINVAL; 2651 2652 /* setup parsing context */ 2653 memset(&tplg, 0, sizeof(tplg)); 2654 tplg.fw = fw; 2655 tplg.dev = comp->dev; 2656 tplg.comp = comp; 2657 if (ops) { 2658 tplg.ops = ops; 2659 tplg.io_ops = ops->io_ops; 2660 tplg.io_ops_count = ops->io_ops_count; 2661 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2662 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2663 } 2664 2665 ret = soc_tplg_load(&tplg); 2666 /* free the created components if fail to load topology */ 2667 if (ret) 2668 snd_soc_tplg_component_remove(comp); 2669 2670 return ret; 2671 } 2672 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2673 2674 /* remove dynamic controls from the component driver */ 2675 int snd_soc_tplg_component_remove(struct snd_soc_component *comp) 2676 { 2677 struct snd_soc_dobj *dobj, *next_dobj; 2678 int pass = SOC_TPLG_PASS_END; 2679 2680 /* process the header types from end to start */ 2681 while (pass >= SOC_TPLG_PASS_START) { 2682 2683 /* remove mixer controls */ 2684 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2685 list) { 2686 2687 switch (dobj->type) { 2688 case SND_SOC_DOBJ_MIXER: 2689 remove_mixer(comp, dobj, pass); 2690 break; 2691 case SND_SOC_DOBJ_ENUM: 2692 remove_enum(comp, dobj, pass); 2693 break; 2694 case SND_SOC_DOBJ_BYTES: 2695 remove_bytes(comp, dobj, pass); 2696 break; 2697 case SND_SOC_DOBJ_GRAPH: 2698 remove_route(comp, dobj, pass); 2699 break; 2700 case SND_SOC_DOBJ_WIDGET: 2701 remove_widget(comp, dobj, pass); 2702 break; 2703 case SND_SOC_DOBJ_PCM: 2704 remove_dai(comp, dobj, pass); 2705 break; 2706 case SND_SOC_DOBJ_DAI_LINK: 2707 remove_link(comp, dobj, pass); 2708 break; 2709 case SND_SOC_DOBJ_BACKEND_LINK: 2710 /* 2711 * call link_unload ops if extra 2712 * deinitialization is needed. 2713 */ 2714 remove_backend_link(comp, dobj, pass); 2715 break; 2716 default: 2717 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2718 dobj->type); 2719 break; 2720 } 2721 } 2722 pass--; 2723 } 2724 2725 /* let caller know if FW can be freed when no objects are left */ 2726 return !list_empty(&comp->dobj_list); 2727 } 2728 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2729