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 position */ 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 tplg->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 < le32_to_cpu(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 /* 1595 * check if widget itself fits within topology file 1596 * use sizeof instead of widget->size, as we can't be sure 1597 * it is set properly yet (file may end before it is present) 1598 */ 1599 if (soc_tplg_get_offset(tplg) + sizeof(*widget) >= tplg->fw->size) { 1600 dev_err(tplg->dev, "ASoC: invalid widget data size\n"); 1601 return -EINVAL; 1602 } 1603 1604 /* check if widget has proper size */ 1605 if (le32_to_cpu(widget->size) != sizeof(*widget)) { 1606 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1607 return -EINVAL; 1608 } 1609 1610 /* check if widget private data fits within topology file */ 1611 if (soc_tplg_get_offset(tplg) + le32_to_cpu(widget->priv.size) >= tplg->fw->size) { 1612 dev_err(tplg->dev, "ASoC: invalid widget private data size\n"); 1613 return -EINVAL; 1614 } 1615 1616 ret = soc_tplg_dapm_widget_create(tplg, widget); 1617 if (ret < 0) { 1618 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1619 widget->name); 1620 return ret; 1621 } 1622 } 1623 1624 return 0; 1625 } 1626 1627 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1628 { 1629 struct snd_soc_card *card = tplg->comp->card; 1630 int ret; 1631 1632 /* Card might not have been registered at this point. 1633 * If so, just return success. 1634 */ 1635 if (!card || !card->instantiated) { 1636 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1637 " widget card binding deferred\n"); 1638 return 0; 1639 } 1640 1641 ret = snd_soc_dapm_new_widgets(card); 1642 if (ret < 0) 1643 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1644 ret); 1645 1646 return 0; 1647 } 1648 1649 static int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream, 1650 struct snd_soc_tplg_stream_caps *caps) 1651 { 1652 stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL); 1653 if (!stream->stream_name) 1654 return -ENOMEM; 1655 1656 stream->channels_min = le32_to_cpu(caps->channels_min); 1657 stream->channels_max = le32_to_cpu(caps->channels_max); 1658 stream->rates = le32_to_cpu(caps->rates); 1659 stream->rate_min = le32_to_cpu(caps->rate_min); 1660 stream->rate_max = le32_to_cpu(caps->rate_max); 1661 stream->formats = le64_to_cpu(caps->formats); 1662 stream->sig_bits = le32_to_cpu(caps->sig_bits); 1663 1664 return 0; 1665 } 1666 1667 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1668 unsigned int flag_mask, unsigned int flags) 1669 { 1670 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1671 dai_drv->symmetric_rate = 1672 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1673 1674 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1675 dai_drv->symmetric_channels = 1676 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) ? 1677 1 : 0; 1678 1679 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1680 dai_drv->symmetric_sample_bits = 1681 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1682 1 : 0; 1683 } 1684 1685 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1686 struct snd_soc_tplg_pcm *pcm) 1687 { 1688 struct snd_soc_dai_driver *dai_drv; 1689 struct snd_soc_pcm_stream *stream; 1690 struct snd_soc_tplg_stream_caps *caps; 1691 struct snd_soc_dai *dai; 1692 struct snd_soc_dapm_context *dapm = 1693 snd_soc_component_get_dapm(tplg->comp); 1694 int ret; 1695 1696 dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1697 if (dai_drv == NULL) 1698 return -ENOMEM; 1699 1700 if (strlen(pcm->dai_name)) { 1701 dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1702 if (!dai_drv->name) { 1703 ret = -ENOMEM; 1704 goto err; 1705 } 1706 } 1707 dai_drv->id = le32_to_cpu(pcm->dai_id); 1708 1709 if (pcm->playback) { 1710 stream = &dai_drv->playback; 1711 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1712 ret = set_stream_info(tplg, stream, caps); 1713 if (ret < 0) 1714 goto err; 1715 } 1716 1717 if (pcm->capture) { 1718 stream = &dai_drv->capture; 1719 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1720 ret = set_stream_info(tplg, stream, caps); 1721 if (ret < 0) 1722 goto err; 1723 } 1724 1725 if (pcm->compress) 1726 dai_drv->compress_new = snd_soc_new_compress; 1727 1728 /* pass control to component driver for optional further init */ 1729 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1730 if (ret < 0) { 1731 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 1732 goto err; 1733 } 1734 1735 dai_drv->dobj.index = tplg->index; 1736 dai_drv->dobj.ops = tplg->ops; 1737 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1738 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1739 1740 /* register the DAI to the component */ 1741 dai = snd_soc_register_dai(tplg->comp, dai_drv, false); 1742 if (!dai) 1743 return -ENOMEM; 1744 1745 /* Create the DAI widgets here */ 1746 ret = snd_soc_dapm_new_dai_widgets(dapm, dai); 1747 if (ret != 0) { 1748 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret); 1749 snd_soc_unregister_dai(dai); 1750 return ret; 1751 } 1752 1753 return 0; 1754 1755 err: 1756 return ret; 1757 } 1758 1759 static void set_link_flags(struct snd_soc_dai_link *link, 1760 unsigned int flag_mask, unsigned int flags) 1761 { 1762 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1763 link->symmetric_rate = 1764 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1765 1766 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1767 link->symmetric_channels = 1768 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) ? 1769 1 : 0; 1770 1771 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1772 link->symmetric_sample_bits = 1773 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1774 1 : 0; 1775 1776 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1777 link->ignore_suspend = 1778 (flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) ? 1779 1 : 0; 1780 } 1781 1782 /* create the FE DAI link */ 1783 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1784 struct snd_soc_tplg_pcm *pcm) 1785 { 1786 struct snd_soc_dai_link *link; 1787 struct snd_soc_dai_link_component *dlc; 1788 int ret; 1789 1790 /* link + cpu + codec + platform */ 1791 link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1792 if (link == NULL) 1793 return -ENOMEM; 1794 1795 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1796 1797 link->cpus = &dlc[0]; 1798 link->codecs = &dlc[1]; 1799 link->platforms = &dlc[2]; 1800 1801 link->num_cpus = 1; 1802 link->num_codecs = 1; 1803 link->num_platforms = 1; 1804 1805 link->dobj.index = tplg->index; 1806 link->dobj.ops = tplg->ops; 1807 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1808 1809 if (strlen(pcm->pcm_name)) { 1810 link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1811 link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1812 if (!link->name || !link->stream_name) { 1813 ret = -ENOMEM; 1814 goto err; 1815 } 1816 } 1817 link->id = le32_to_cpu(pcm->pcm_id); 1818 1819 if (strlen(pcm->dai_name)) { 1820 link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1821 if (!link->cpus->dai_name) { 1822 ret = -ENOMEM; 1823 goto err; 1824 } 1825 } 1826 1827 link->codecs->name = "snd-soc-dummy"; 1828 link->codecs->dai_name = "snd-soc-dummy-dai"; 1829 1830 link->platforms->name = "snd-soc-dummy"; 1831 1832 /* enable DPCM */ 1833 link->dynamic = 1; 1834 link->dpcm_playback = le32_to_cpu(pcm->playback); 1835 link->dpcm_capture = le32_to_cpu(pcm->capture); 1836 if (pcm->flag_mask) 1837 set_link_flags(link, 1838 le32_to_cpu(pcm->flag_mask), 1839 le32_to_cpu(pcm->flags)); 1840 1841 /* pass control to component driver for optional further init */ 1842 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1843 if (ret < 0) { 1844 dev_err(tplg->dev, "ASoC: FE link loading failed\n"); 1845 goto err; 1846 } 1847 1848 ret = snd_soc_add_pcm_runtime(tplg->comp->card, link); 1849 if (ret < 0) { 1850 dev_err(tplg->dev, "ASoC: adding FE link failed\n"); 1851 goto err; 1852 } 1853 1854 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1855 1856 return 0; 1857 err: 1858 return ret; 1859 } 1860 1861 /* create a FE DAI and DAI link from the PCM object */ 1862 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1863 struct snd_soc_tplg_pcm *pcm) 1864 { 1865 int ret; 1866 1867 ret = soc_tplg_dai_create(tplg, pcm); 1868 if (ret < 0) 1869 return ret; 1870 1871 return soc_tplg_fe_link_create(tplg, pcm); 1872 } 1873 1874 /* copy stream caps from the old version 4 of source */ 1875 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 1876 struct snd_soc_tplg_stream_caps_v4 *src) 1877 { 1878 dest->size = cpu_to_le32(sizeof(*dest)); 1879 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1880 dest->formats = src->formats; 1881 dest->rates = src->rates; 1882 dest->rate_min = src->rate_min; 1883 dest->rate_max = src->rate_max; 1884 dest->channels_min = src->channels_min; 1885 dest->channels_max = src->channels_max; 1886 dest->periods_min = src->periods_min; 1887 dest->periods_max = src->periods_max; 1888 dest->period_size_min = src->period_size_min; 1889 dest->period_size_max = src->period_size_max; 1890 dest->buffer_size_min = src->buffer_size_min; 1891 dest->buffer_size_max = src->buffer_size_max; 1892 } 1893 1894 /** 1895 * pcm_new_ver - Create the new version of PCM from the old version. 1896 * @tplg: topology context 1897 * @src: older version of pcm as a source 1898 * @pcm: latest version of pcm created from the source 1899 * 1900 * Support from version 4. User should free the returned pcm manually. 1901 */ 1902 static int pcm_new_ver(struct soc_tplg *tplg, 1903 struct snd_soc_tplg_pcm *src, 1904 struct snd_soc_tplg_pcm **pcm) 1905 { 1906 struct snd_soc_tplg_pcm *dest; 1907 struct snd_soc_tplg_pcm_v4 *src_v4; 1908 int i; 1909 1910 *pcm = NULL; 1911 1912 if (le32_to_cpu(src->size) != sizeof(*src_v4)) { 1913 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 1914 return -EINVAL; 1915 } 1916 1917 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 1918 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 1919 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1920 if (!dest) 1921 return -ENOMEM; 1922 1923 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 1924 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1925 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1926 dest->pcm_id = src_v4->pcm_id; 1927 dest->dai_id = src_v4->dai_id; 1928 dest->playback = src_v4->playback; 1929 dest->capture = src_v4->capture; 1930 dest->compress = src_v4->compress; 1931 dest->num_streams = src_v4->num_streams; 1932 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 1933 memcpy(&dest->stream[i], &src_v4->stream[i], 1934 sizeof(struct snd_soc_tplg_stream)); 1935 1936 for (i = 0; i < 2; i++) 1937 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 1938 1939 *pcm = dest; 1940 return 0; 1941 } 1942 1943 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1944 struct snd_soc_tplg_hdr *hdr) 1945 { 1946 struct snd_soc_tplg_pcm *pcm, *_pcm; 1947 int count; 1948 int size; 1949 int i; 1950 bool abi_match; 1951 int ret; 1952 1953 count = le32_to_cpu(hdr->count); 1954 1955 /* check the element size and count */ 1956 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1957 size = le32_to_cpu(pcm->size); 1958 if (size > sizeof(struct snd_soc_tplg_pcm) 1959 || size < sizeof(struct snd_soc_tplg_pcm_v4)) { 1960 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1961 size); 1962 return -EINVAL; 1963 } 1964 1965 if (soc_tplg_check_elem_count(tplg, 1966 size, count, 1967 le32_to_cpu(hdr->payload_size), 1968 "PCM DAI")) { 1969 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 1970 count); 1971 return -EINVAL; 1972 } 1973 1974 for (i = 0; i < count; i++) { 1975 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1976 size = le32_to_cpu(pcm->size); 1977 1978 /* check ABI version by size, create a new version of pcm 1979 * if abi not match. 1980 */ 1981 if (size == sizeof(*pcm)) { 1982 abi_match = true; 1983 _pcm = pcm; 1984 } else { 1985 abi_match = false; 1986 ret = pcm_new_ver(tplg, pcm, &_pcm); 1987 if (ret < 0) 1988 return ret; 1989 } 1990 1991 /* create the FE DAIs and DAI links */ 1992 ret = soc_tplg_pcm_create(tplg, _pcm); 1993 if (ret < 0) { 1994 if (!abi_match) 1995 kfree(_pcm); 1996 return ret; 1997 } 1998 1999 /* offset by version-specific struct size and 2000 * real priv data size 2001 */ 2002 tplg->pos += size + le32_to_cpu(_pcm->priv.size); 2003 2004 if (!abi_match) 2005 kfree(_pcm); /* free the duplicated one */ 2006 } 2007 2008 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 2009 2010 return 0; 2011 } 2012 2013 /** 2014 * set_link_hw_format - Set the HW audio format of the physical DAI link. 2015 * @link: &snd_soc_dai_link which should be updated 2016 * @cfg: physical link configs. 2017 * 2018 * Topology context contains a list of supported HW formats (configs) and 2019 * a default format ID for the physical link. This function will use this 2020 * default ID to choose the HW format to set the link's DAI format for init. 2021 */ 2022 static void set_link_hw_format(struct snd_soc_dai_link *link, 2023 struct snd_soc_tplg_link_config *cfg) 2024 { 2025 struct snd_soc_tplg_hw_config *hw_config; 2026 unsigned char bclk_provider, fsync_provider; 2027 unsigned char invert_bclk, invert_fsync; 2028 int i; 2029 2030 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 2031 hw_config = &cfg->hw_config[i]; 2032 if (hw_config->id != cfg->default_hw_config_id) 2033 continue; 2034 2035 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 2036 SND_SOC_DAIFMT_FORMAT_MASK; 2037 2038 /* clock gating */ 2039 switch (hw_config->clock_gated) { 2040 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 2041 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 2042 break; 2043 2044 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 2045 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 2046 break; 2047 2048 default: 2049 /* ignore the value */ 2050 break; 2051 } 2052 2053 /* clock signal polarity */ 2054 invert_bclk = hw_config->invert_bclk; 2055 invert_fsync = hw_config->invert_fsync; 2056 if (!invert_bclk && !invert_fsync) 2057 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 2058 else if (!invert_bclk && invert_fsync) 2059 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 2060 else if (invert_bclk && !invert_fsync) 2061 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 2062 else 2063 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 2064 2065 /* clock masters */ 2066 bclk_provider = (hw_config->bclk_provider == 2067 SND_SOC_TPLG_BCLK_CP); 2068 fsync_provider = (hw_config->fsync_provider == 2069 SND_SOC_TPLG_FSYNC_CP); 2070 if (bclk_provider && fsync_provider) 2071 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 2072 else if (!bclk_provider && fsync_provider) 2073 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFP; 2074 else if (bclk_provider && !fsync_provider) 2075 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFC; 2076 else 2077 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC; 2078 } 2079 } 2080 2081 /** 2082 * link_new_ver - Create a new physical link config from the old 2083 * version of source. 2084 * @tplg: topology context 2085 * @src: old version of phyical link config as a source 2086 * @link: latest version of physical link config created from the source 2087 * 2088 * Support from version 4. User need free the returned link config manually. 2089 */ 2090 static int link_new_ver(struct soc_tplg *tplg, 2091 struct snd_soc_tplg_link_config *src, 2092 struct snd_soc_tplg_link_config **link) 2093 { 2094 struct snd_soc_tplg_link_config *dest; 2095 struct snd_soc_tplg_link_config_v4 *src_v4; 2096 int i; 2097 2098 *link = NULL; 2099 2100 if (le32_to_cpu(src->size) != 2101 sizeof(struct snd_soc_tplg_link_config_v4)) { 2102 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2103 return -EINVAL; 2104 } 2105 2106 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2107 2108 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2109 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2110 if (!dest) 2111 return -ENOMEM; 2112 2113 dest->size = cpu_to_le32(sizeof(*dest)); 2114 dest->id = src_v4->id; 2115 dest->num_streams = src_v4->num_streams; 2116 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2117 memcpy(&dest->stream[i], &src_v4->stream[i], 2118 sizeof(struct snd_soc_tplg_stream)); 2119 2120 *link = dest; 2121 return 0; 2122 } 2123 2124 /** 2125 * snd_soc_find_dai_link - Find a DAI link 2126 * 2127 * @card: soc card 2128 * @id: DAI link ID to match 2129 * @name: DAI link name to match, optional 2130 * @stream_name: DAI link stream name to match, optional 2131 * 2132 * This function will search all existing DAI links of the soc card to 2133 * find the link of the same ID. Since DAI links may not have their 2134 * unique ID, so name and stream name should also match if being 2135 * specified. 2136 * 2137 * Return: pointer of DAI link, or NULL if not found. 2138 */ 2139 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, 2140 int id, const char *name, 2141 const char *stream_name) 2142 { 2143 struct snd_soc_pcm_runtime *rtd; 2144 2145 for_each_card_rtds(card, rtd) { 2146 struct snd_soc_dai_link *link = rtd->dai_link; 2147 2148 if (link->id != id) 2149 continue; 2150 2151 if (name && (!link->name || strcmp(name, link->name))) 2152 continue; 2153 2154 if (stream_name && (!link->stream_name 2155 || strcmp(stream_name, link->stream_name))) 2156 continue; 2157 2158 return link; 2159 } 2160 2161 return NULL; 2162 } 2163 2164 /* Find and configure an existing physical DAI link */ 2165 static int soc_tplg_link_config(struct soc_tplg *tplg, 2166 struct snd_soc_tplg_link_config *cfg) 2167 { 2168 struct snd_soc_dai_link *link; 2169 const char *name, *stream_name; 2170 size_t len; 2171 int ret; 2172 2173 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2174 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2175 return -EINVAL; 2176 else if (len) 2177 name = cfg->name; 2178 else 2179 name = NULL; 2180 2181 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2182 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2183 return -EINVAL; 2184 else if (len) 2185 stream_name = cfg->stream_name; 2186 else 2187 stream_name = NULL; 2188 2189 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 2190 name, stream_name); 2191 if (!link) { 2192 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2193 name, cfg->id); 2194 return -EINVAL; 2195 } 2196 2197 /* hw format */ 2198 if (cfg->num_hw_configs) 2199 set_link_hw_format(link, cfg); 2200 2201 /* flags */ 2202 if (cfg->flag_mask) 2203 set_link_flags(link, 2204 le32_to_cpu(cfg->flag_mask), 2205 le32_to_cpu(cfg->flags)); 2206 2207 /* pass control to component driver for optional further init */ 2208 ret = soc_tplg_dai_link_load(tplg, link, cfg); 2209 if (ret < 0) { 2210 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2211 return ret; 2212 } 2213 2214 /* for unloading it in snd_soc_tplg_component_remove */ 2215 link->dobj.index = tplg->index; 2216 link->dobj.ops = tplg->ops; 2217 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 2218 list_add(&link->dobj.list, &tplg->comp->dobj_list); 2219 2220 return 0; 2221 } 2222 2223 2224 /* Load physical link config elements from the topology context */ 2225 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2226 struct snd_soc_tplg_hdr *hdr) 2227 { 2228 struct snd_soc_tplg_link_config *link, *_link; 2229 int count; 2230 int size; 2231 int i, ret; 2232 bool abi_match; 2233 2234 count = le32_to_cpu(hdr->count); 2235 2236 /* check the element size and count */ 2237 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2238 size = le32_to_cpu(link->size); 2239 if (size > sizeof(struct snd_soc_tplg_link_config) 2240 || size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2241 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2242 size); 2243 return -EINVAL; 2244 } 2245 2246 if (soc_tplg_check_elem_count(tplg, 2247 size, count, 2248 le32_to_cpu(hdr->payload_size), 2249 "physical link config")) { 2250 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2251 count); 2252 return -EINVAL; 2253 } 2254 2255 /* config physical DAI links */ 2256 for (i = 0; i < count; i++) { 2257 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2258 size = le32_to_cpu(link->size); 2259 if (size == sizeof(*link)) { 2260 abi_match = true; 2261 _link = link; 2262 } else { 2263 abi_match = false; 2264 ret = link_new_ver(tplg, link, &_link); 2265 if (ret < 0) 2266 return ret; 2267 } 2268 2269 ret = soc_tplg_link_config(tplg, _link); 2270 if (ret < 0) { 2271 if (!abi_match) 2272 kfree(_link); 2273 return ret; 2274 } 2275 2276 /* offset by version-specific struct size and 2277 * real priv data size 2278 */ 2279 tplg->pos += size + le32_to_cpu(_link->priv.size); 2280 2281 if (!abi_match) 2282 kfree(_link); /* free the duplicated one */ 2283 } 2284 2285 return 0; 2286 } 2287 2288 /** 2289 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2290 * @tplg: topology context 2291 * @d: physical DAI configs. 2292 * 2293 * The physical dai should already be registered by the platform driver. 2294 * The platform driver should specify the DAI name and ID for matching. 2295 */ 2296 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2297 struct snd_soc_tplg_dai *d) 2298 { 2299 struct snd_soc_dai_link_component dai_component; 2300 struct snd_soc_dai *dai; 2301 struct snd_soc_dai_driver *dai_drv; 2302 struct snd_soc_pcm_stream *stream; 2303 struct snd_soc_tplg_stream_caps *caps; 2304 int ret; 2305 2306 memset(&dai_component, 0, sizeof(dai_component)); 2307 2308 dai_component.dai_name = d->dai_name; 2309 dai = snd_soc_find_dai(&dai_component); 2310 if (!dai) { 2311 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2312 d->dai_name); 2313 return -EINVAL; 2314 } 2315 2316 if (le32_to_cpu(d->dai_id) != dai->id) { 2317 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2318 d->dai_name); 2319 return -EINVAL; 2320 } 2321 2322 dai_drv = dai->driver; 2323 if (!dai_drv) 2324 return -EINVAL; 2325 2326 if (d->playback) { 2327 stream = &dai_drv->playback; 2328 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2329 ret = set_stream_info(tplg, stream, caps); 2330 if (ret < 0) 2331 goto err; 2332 } 2333 2334 if (d->capture) { 2335 stream = &dai_drv->capture; 2336 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2337 ret = set_stream_info(tplg, stream, caps); 2338 if (ret < 0) 2339 goto err; 2340 } 2341 2342 if (d->flag_mask) 2343 set_dai_flags(dai_drv, 2344 le32_to_cpu(d->flag_mask), 2345 le32_to_cpu(d->flags)); 2346 2347 /* pass control to component driver for optional further init */ 2348 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2349 if (ret < 0) { 2350 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 2351 goto err; 2352 } 2353 2354 return 0; 2355 2356 err: 2357 return ret; 2358 } 2359 2360 /* load physical DAI elements */ 2361 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2362 struct snd_soc_tplg_hdr *hdr) 2363 { 2364 int count; 2365 int i; 2366 2367 count = le32_to_cpu(hdr->count); 2368 2369 /* config the existing BE DAIs */ 2370 for (i = 0; i < count; i++) { 2371 struct snd_soc_tplg_dai *dai = (struct snd_soc_tplg_dai *)tplg->pos; 2372 int ret; 2373 2374 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 2375 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2376 return -EINVAL; 2377 } 2378 2379 ret = soc_tplg_dai_config(tplg, dai); 2380 if (ret < 0) { 2381 dev_err(tplg->dev, "ASoC: failed to configure DAI\n"); 2382 return ret; 2383 } 2384 2385 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 2386 } 2387 2388 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2389 return 0; 2390 } 2391 2392 /** 2393 * manifest_new_ver - Create a new version of manifest from the old version 2394 * of source. 2395 * @tplg: topology context 2396 * @src: old version of manifest as a source 2397 * @manifest: latest version of manifest created from the source 2398 * 2399 * Support from version 4. Users need free the returned manifest manually. 2400 */ 2401 static int manifest_new_ver(struct soc_tplg *tplg, 2402 struct snd_soc_tplg_manifest *src, 2403 struct snd_soc_tplg_manifest **manifest) 2404 { 2405 struct snd_soc_tplg_manifest *dest; 2406 struct snd_soc_tplg_manifest_v4 *src_v4; 2407 int size; 2408 2409 *manifest = NULL; 2410 2411 size = le32_to_cpu(src->size); 2412 if (size != sizeof(*src_v4)) { 2413 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", 2414 size); 2415 if (size) 2416 return -EINVAL; 2417 src->size = cpu_to_le32(sizeof(*src_v4)); 2418 } 2419 2420 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2421 2422 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2423 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size), 2424 GFP_KERNEL); 2425 if (!dest) 2426 return -ENOMEM; 2427 2428 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2429 dest->control_elems = src_v4->control_elems; 2430 dest->widget_elems = src_v4->widget_elems; 2431 dest->graph_elems = src_v4->graph_elems; 2432 dest->pcm_elems = src_v4->pcm_elems; 2433 dest->dai_link_elems = src_v4->dai_link_elems; 2434 dest->priv.size = src_v4->priv.size; 2435 if (dest->priv.size) 2436 memcpy(dest->priv.data, src_v4->priv.data, 2437 le32_to_cpu(src_v4->priv.size)); 2438 2439 *manifest = dest; 2440 return 0; 2441 } 2442 2443 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2444 struct snd_soc_tplg_hdr *hdr) 2445 { 2446 struct snd_soc_tplg_manifest *manifest, *_manifest; 2447 bool abi_match; 2448 int ret = 0; 2449 2450 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2451 2452 /* check ABI version by size, create a new manifest if abi not match */ 2453 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) { 2454 abi_match = true; 2455 _manifest = manifest; 2456 } else { 2457 abi_match = false; 2458 2459 ret = manifest_new_ver(tplg, manifest, &_manifest); 2460 if (ret < 0) 2461 return ret; 2462 } 2463 2464 /* pass control to component driver for optional further init */ 2465 if (tplg->ops && tplg->ops->manifest) 2466 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest); 2467 2468 if (!abi_match) /* free the duplicated one */ 2469 kfree(_manifest); 2470 2471 return ret; 2472 } 2473 2474 /* validate header magic, size and type */ 2475 static int soc_valid_header(struct soc_tplg *tplg, 2476 struct snd_soc_tplg_hdr *hdr) 2477 { 2478 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2479 return 0; 2480 2481 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 2482 dev_err(tplg->dev, 2483 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2484 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2485 tplg->fw->size); 2486 return -EINVAL; 2487 } 2488 2489 if (soc_tplg_get_hdr_offset(tplg) + hdr->payload_size >= tplg->fw->size) { 2490 dev_err(tplg->dev, 2491 "ASoC: invalid header of type %d at offset %ld payload_size %d\n", 2492 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2493 hdr->payload_size); 2494 return -EINVAL; 2495 } 2496 2497 /* big endian firmware objects not supported atm */ 2498 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) { 2499 dev_err(tplg->dev, 2500 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2501 tplg->pass, hdr->magic, 2502 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2503 return -EINVAL; 2504 } 2505 2506 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2507 dev_err(tplg->dev, 2508 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2509 tplg->pass, hdr->magic, 2510 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2511 return -EINVAL; 2512 } 2513 2514 /* Support ABI from version 4 */ 2515 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2516 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2517 dev_err(tplg->dev, 2518 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2519 tplg->pass, hdr->abi, 2520 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2521 tplg->fw->size); 2522 return -EINVAL; 2523 } 2524 2525 if (hdr->payload_size == 0) { 2526 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2527 soc_tplg_get_hdr_offset(tplg)); 2528 return -EINVAL; 2529 } 2530 2531 return 1; 2532 } 2533 2534 /* check header type and call appropriate handler */ 2535 static int soc_tplg_load_header(struct soc_tplg *tplg, 2536 struct snd_soc_tplg_hdr *hdr) 2537 { 2538 int (*elem_load)(struct soc_tplg *tplg, 2539 struct snd_soc_tplg_hdr *hdr); 2540 unsigned int hdr_pass; 2541 2542 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2543 2544 tplg->index = le32_to_cpu(hdr->index); 2545 2546 switch (le32_to_cpu(hdr->type)) { 2547 case SND_SOC_TPLG_TYPE_MIXER: 2548 case SND_SOC_TPLG_TYPE_ENUM: 2549 case SND_SOC_TPLG_TYPE_BYTES: 2550 hdr_pass = SOC_TPLG_PASS_MIXER; 2551 elem_load = soc_tplg_kcontrol_elems_load; 2552 break; 2553 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2554 hdr_pass = SOC_TPLG_PASS_GRAPH; 2555 elem_load = soc_tplg_dapm_graph_elems_load; 2556 break; 2557 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2558 hdr_pass = SOC_TPLG_PASS_WIDGET; 2559 elem_load = soc_tplg_dapm_widget_elems_load; 2560 break; 2561 case SND_SOC_TPLG_TYPE_PCM: 2562 hdr_pass = SOC_TPLG_PASS_PCM_DAI; 2563 elem_load = soc_tplg_pcm_elems_load; 2564 break; 2565 case SND_SOC_TPLG_TYPE_DAI: 2566 hdr_pass = SOC_TPLG_PASS_BE_DAI; 2567 elem_load = soc_tplg_dai_elems_load; 2568 break; 2569 case SND_SOC_TPLG_TYPE_DAI_LINK: 2570 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2571 /* physical link configurations */ 2572 hdr_pass = SOC_TPLG_PASS_LINK; 2573 elem_load = soc_tplg_link_elems_load; 2574 break; 2575 case SND_SOC_TPLG_TYPE_MANIFEST: 2576 hdr_pass = SOC_TPLG_PASS_MANIFEST; 2577 elem_load = soc_tplg_manifest_load; 2578 break; 2579 default: 2580 /* bespoke vendor data object */ 2581 hdr_pass = SOC_TPLG_PASS_VENDOR; 2582 elem_load = soc_tplg_vendor_load; 2583 break; 2584 } 2585 2586 if (tplg->pass == hdr_pass) { 2587 dev_dbg(tplg->dev, 2588 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2589 hdr->payload_size, hdr->type, hdr->version, 2590 hdr->vendor_type, tplg->pass); 2591 return elem_load(tplg, hdr); 2592 } 2593 2594 return 0; 2595 } 2596 2597 /* process the topology file headers */ 2598 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2599 { 2600 int ret; 2601 2602 tplg->pass = SOC_TPLG_PASS_START; 2603 2604 /* process the header types from start to end */ 2605 while (tplg->pass <= SOC_TPLG_PASS_END) { 2606 struct snd_soc_tplg_hdr *hdr; 2607 2608 tplg->hdr_pos = tplg->fw->data; 2609 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2610 2611 while (!soc_tplg_is_eof(tplg)) { 2612 2613 /* make sure header is valid before loading */ 2614 ret = soc_valid_header(tplg, hdr); 2615 if (ret < 0) { 2616 dev_err(tplg->dev, 2617 "ASoC: topology: invalid header: %d\n", ret); 2618 return ret; 2619 } else if (ret == 0) { 2620 break; 2621 } 2622 2623 /* load the header object */ 2624 ret = soc_tplg_load_header(tplg, hdr); 2625 if (ret < 0) { 2626 dev_err(tplg->dev, 2627 "ASoC: topology: could not load header: %d\n", ret); 2628 return ret; 2629 } 2630 2631 /* goto next header */ 2632 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2633 sizeof(struct snd_soc_tplg_hdr); 2634 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2635 } 2636 2637 /* next data type pass */ 2638 tplg->pass++; 2639 } 2640 2641 /* signal DAPM we are complete */ 2642 ret = soc_tplg_dapm_complete(tplg); 2643 if (ret < 0) 2644 dev_err(tplg->dev, 2645 "ASoC: failed to initialise DAPM from Firmware\n"); 2646 2647 return ret; 2648 } 2649 2650 static int soc_tplg_load(struct soc_tplg *tplg) 2651 { 2652 int ret; 2653 2654 ret = soc_tplg_process_headers(tplg); 2655 if (ret == 0) 2656 return soc_tplg_complete(tplg); 2657 2658 return ret; 2659 } 2660 2661 /* load audio component topology from "firmware" file */ 2662 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2663 struct snd_soc_tplg_ops *ops, const struct firmware *fw) 2664 { 2665 struct soc_tplg tplg; 2666 int ret; 2667 2668 /* 2669 * check if we have sane parameters: 2670 * comp - needs to exist to keep and reference data while parsing 2671 * comp->card - used for setting card related parameters 2672 * comp->card->dev - used for resource management and prints 2673 * fw - we need it, as it is the very thing we parse 2674 */ 2675 if (!comp || !comp->card || !comp->card->dev || !fw) 2676 return -EINVAL; 2677 2678 /* setup parsing context */ 2679 memset(&tplg, 0, sizeof(tplg)); 2680 tplg.fw = fw; 2681 tplg.dev = comp->card->dev; 2682 tplg.comp = comp; 2683 if (ops) { 2684 tplg.ops = ops; 2685 tplg.io_ops = ops->io_ops; 2686 tplg.io_ops_count = ops->io_ops_count; 2687 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2688 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2689 } 2690 2691 ret = soc_tplg_load(&tplg); 2692 /* free the created components if fail to load topology */ 2693 if (ret) 2694 snd_soc_tplg_component_remove(comp); 2695 2696 return ret; 2697 } 2698 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2699 2700 /* remove dynamic controls from the component driver */ 2701 int snd_soc_tplg_component_remove(struct snd_soc_component *comp) 2702 { 2703 struct snd_card *card = comp->card->snd_card; 2704 struct snd_soc_dobj *dobj, *next_dobj; 2705 int pass = SOC_TPLG_PASS_END; 2706 2707 /* process the header types from end to start */ 2708 while (pass >= SOC_TPLG_PASS_START) { 2709 2710 /* remove mixer controls */ 2711 down_write(&card->controls_rwsem); 2712 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2713 list) { 2714 2715 switch (dobj->type) { 2716 case SND_SOC_DOBJ_MIXER: 2717 remove_mixer(comp, dobj, pass); 2718 break; 2719 case SND_SOC_DOBJ_ENUM: 2720 remove_enum(comp, dobj, pass); 2721 break; 2722 case SND_SOC_DOBJ_BYTES: 2723 remove_bytes(comp, dobj, pass); 2724 break; 2725 case SND_SOC_DOBJ_GRAPH: 2726 remove_route(comp, dobj, pass); 2727 break; 2728 case SND_SOC_DOBJ_WIDGET: 2729 remove_widget(comp, dobj, pass); 2730 break; 2731 case SND_SOC_DOBJ_PCM: 2732 remove_dai(comp, dobj, pass); 2733 break; 2734 case SND_SOC_DOBJ_DAI_LINK: 2735 remove_link(comp, dobj, pass); 2736 break; 2737 case SND_SOC_DOBJ_BACKEND_LINK: 2738 /* 2739 * call link_unload ops if extra 2740 * deinitialization is needed. 2741 */ 2742 remove_backend_link(comp, dobj, pass); 2743 break; 2744 default: 2745 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2746 dobj->type); 2747 break; 2748 } 2749 } 2750 up_write(&card->controls_rwsem); 2751 pass--; 2752 } 2753 2754 /* let caller know if FW can be freed when no objects are left */ 2755 return !list_empty(&comp->dobj_list); 2756 } 2757 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2758