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 u32 req_index; /* required index, only loaded/free matching blocks */ 68 69 /* vendor specific kcontrol operations */ 70 const struct snd_soc_tplg_kcontrol_ops *io_ops; 71 int io_ops_count; 72 73 /* vendor specific bytes ext handlers, for TLV bytes controls */ 74 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops; 75 int bytes_ext_ops_count; 76 77 /* optional fw loading callbacks to component drivers */ 78 struct snd_soc_tplg_ops *ops; 79 }; 80 81 static int soc_tplg_process_headers(struct soc_tplg *tplg); 82 static void soc_tplg_complete(struct soc_tplg *tplg); 83 static void soc_tplg_denum_remove_texts(struct soc_enum *se); 84 static void soc_tplg_denum_remove_values(struct soc_enum *se); 85 86 /* check we dont overflow the data for this control chunk */ 87 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size, 88 unsigned int count, size_t bytes, const char *elem_type) 89 { 90 const u8 *end = tplg->pos + elem_size * count; 91 92 if (end > tplg->fw->data + tplg->fw->size) { 93 dev_err(tplg->dev, "ASoC: %s overflow end of data\n", 94 elem_type); 95 return -EINVAL; 96 } 97 98 /* check there is enough room in chunk for control. 99 extra bytes at the end of control are for vendor data here */ 100 if (elem_size * count > bytes) { 101 dev_err(tplg->dev, 102 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n", 103 elem_type, count, elem_size, bytes); 104 return -EINVAL; 105 } 106 107 return 0; 108 } 109 110 static inline int soc_tplg_is_eof(struct soc_tplg *tplg) 111 { 112 const u8 *end = tplg->hdr_pos; 113 114 if (end >= tplg->fw->data + tplg->fw->size) 115 return 1; 116 return 0; 117 } 118 119 static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg) 120 { 121 return (unsigned long)(tplg->hdr_pos - tplg->fw->data); 122 } 123 124 static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg) 125 { 126 return (unsigned long)(tplg->pos - tplg->fw->data); 127 } 128 129 /* mapping of Kcontrol types and associated operations. */ 130 static const struct snd_soc_tplg_kcontrol_ops io_ops[] = { 131 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw, 132 snd_soc_put_volsw, snd_soc_info_volsw}, 133 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx, 134 snd_soc_put_volsw_sx, NULL}, 135 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double, 136 snd_soc_put_enum_double, snd_soc_info_enum_double}, 137 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double, 138 snd_soc_put_enum_double, NULL}, 139 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get, 140 snd_soc_bytes_put, snd_soc_bytes_info}, 141 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range, 142 snd_soc_put_volsw_range, snd_soc_info_volsw_range}, 143 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx, 144 snd_soc_put_xr_sx, snd_soc_info_xr_sx}, 145 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe, 146 snd_soc_put_strobe, NULL}, 147 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw, 148 snd_soc_dapm_put_volsw, snd_soc_info_volsw}, 149 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double, 150 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double}, 151 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double, 152 snd_soc_dapm_put_enum_double, NULL}, 153 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double, 154 snd_soc_dapm_put_enum_double, NULL}, 155 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch, 156 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch}, 157 }; 158 159 struct soc_tplg_map { 160 int uid; 161 int kid; 162 }; 163 164 /* mapping of widget types from UAPI IDs to kernel IDs */ 165 static const struct soc_tplg_map dapm_map[] = { 166 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input}, 167 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output}, 168 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux}, 169 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer}, 170 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga}, 171 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv}, 172 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc}, 173 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac}, 174 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch}, 175 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre}, 176 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post}, 177 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in}, 178 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out}, 179 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in}, 180 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out}, 181 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link}, 182 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer}, 183 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler}, 184 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect}, 185 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen}, 186 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src}, 187 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc}, 188 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder}, 189 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder}, 190 }; 191 192 static int tplc_chan_get_reg(struct soc_tplg *tplg, 193 struct snd_soc_tplg_channel *chan, int map) 194 { 195 int i; 196 197 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 198 if (le32_to_cpu(chan[i].id) == map) 199 return le32_to_cpu(chan[i].reg); 200 } 201 202 return -EINVAL; 203 } 204 205 static int tplc_chan_get_shift(struct soc_tplg *tplg, 206 struct snd_soc_tplg_channel *chan, int map) 207 { 208 int i; 209 210 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 211 if (le32_to_cpu(chan[i].id) == map) 212 return le32_to_cpu(chan[i].shift); 213 } 214 215 return -EINVAL; 216 } 217 218 static int get_widget_id(int tplg_type) 219 { 220 int i; 221 222 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) { 223 if (tplg_type == dapm_map[i].uid) 224 return dapm_map[i].kid; 225 } 226 227 return -EINVAL; 228 } 229 230 static inline void soc_bind_err(struct soc_tplg *tplg, 231 struct snd_soc_tplg_ctl_hdr *hdr, int index) 232 { 233 dev_err(tplg->dev, 234 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n", 235 hdr->ops.get, hdr->ops.put, hdr->ops.info, index, 236 soc_tplg_get_offset(tplg)); 237 } 238 239 static inline void soc_control_err(struct soc_tplg *tplg, 240 struct snd_soc_tplg_ctl_hdr *hdr, const char *name) 241 { 242 dev_err(tplg->dev, 243 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n", 244 name, hdr->ops.get, hdr->ops.put, hdr->ops.info, 245 soc_tplg_get_offset(tplg)); 246 } 247 248 /* pass vendor data to component driver for processing */ 249 static int soc_tplg_vendor_load(struct soc_tplg *tplg, 250 struct snd_soc_tplg_hdr *hdr) 251 { 252 int ret = 0; 253 254 if (tplg->ops && tplg->ops->vendor_load) 255 ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr); 256 else { 257 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n", 258 hdr->vendor_type); 259 return -EINVAL; 260 } 261 262 if (ret < 0) 263 dev_err(tplg->dev, 264 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n", 265 soc_tplg_get_hdr_offset(tplg), 266 soc_tplg_get_hdr_offset(tplg), 267 hdr->type, hdr->vendor_type); 268 return ret; 269 } 270 271 /* optionally pass new dynamic widget to component driver. This is mainly for 272 * external widgets where we can assign private data/ops */ 273 static int soc_tplg_widget_load(struct soc_tplg *tplg, 274 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 275 { 276 if (tplg->ops && tplg->ops->widget_load) 277 return tplg->ops->widget_load(tplg->comp, tplg->index, w, 278 tplg_w); 279 280 return 0; 281 } 282 283 /* optionally pass new dynamic widget to component driver. This is mainly for 284 * external widgets where we can assign private data/ops */ 285 static int soc_tplg_widget_ready(struct soc_tplg *tplg, 286 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 287 { 288 if (tplg->ops && tplg->ops->widget_ready) 289 return tplg->ops->widget_ready(tplg->comp, tplg->index, w, 290 tplg_w); 291 292 return 0; 293 } 294 295 /* pass DAI configurations to component driver for extra initialization */ 296 static int soc_tplg_dai_load(struct soc_tplg *tplg, 297 struct snd_soc_dai_driver *dai_drv, 298 struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai) 299 { 300 if (tplg->ops && tplg->ops->dai_load) 301 return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv, 302 pcm, dai); 303 304 return 0; 305 } 306 307 /* pass link configurations to component driver for extra initialization */ 308 static int soc_tplg_dai_link_load(struct soc_tplg *tplg, 309 struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg) 310 { 311 if (tplg->ops && tplg->ops->link_load) 312 return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg); 313 314 return 0; 315 } 316 317 /* tell the component driver that all firmware has been loaded in this request */ 318 static void soc_tplg_complete(struct soc_tplg *tplg) 319 { 320 if (tplg->ops && tplg->ops->complete) 321 tplg->ops->complete(tplg->comp); 322 } 323 324 /* add a dynamic kcontrol */ 325 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev, 326 const struct snd_kcontrol_new *control_new, const char *prefix, 327 void *data, struct snd_kcontrol **kcontrol) 328 { 329 int err; 330 331 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix); 332 if (*kcontrol == NULL) { 333 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n", 334 control_new->name); 335 return -ENOMEM; 336 } 337 338 err = snd_ctl_add(card, *kcontrol); 339 if (err < 0) { 340 dev_err(dev, "ASoC: Failed to add %s: %d\n", 341 control_new->name, err); 342 return err; 343 } 344 345 return 0; 346 } 347 348 /* add a dynamic kcontrol for component driver */ 349 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg, 350 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol) 351 { 352 struct snd_soc_component *comp = tplg->comp; 353 354 return soc_tplg_add_dcontrol(comp->card->snd_card, 355 comp->dev, k, comp->name_prefix, comp, kcontrol); 356 } 357 358 /* remove a mixer kcontrol */ 359 static void remove_mixer(struct snd_soc_component *comp, 360 struct snd_soc_dobj *dobj, int pass) 361 { 362 struct snd_card *card = comp->card->snd_card; 363 struct soc_mixer_control *sm = 364 container_of(dobj, struct soc_mixer_control, dobj); 365 const unsigned int *p = NULL; 366 367 if (pass != SOC_TPLG_PASS_MIXER) 368 return; 369 370 if (dobj->ops && dobj->ops->control_unload) 371 dobj->ops->control_unload(comp, dobj); 372 373 if (dobj->control.kcontrol->tlv.p) 374 p = dobj->control.kcontrol->tlv.p; 375 snd_ctl_remove(card, dobj->control.kcontrol); 376 list_del(&dobj->list); 377 kfree(sm); 378 kfree(p); 379 } 380 381 /* remove an enum kcontrol */ 382 static void remove_enum(struct snd_soc_component *comp, 383 struct snd_soc_dobj *dobj, int pass) 384 { 385 struct snd_card *card = comp->card->snd_card; 386 struct soc_enum *se = container_of(dobj, struct soc_enum, dobj); 387 388 if (pass != SOC_TPLG_PASS_MIXER) 389 return; 390 391 if (dobj->ops && dobj->ops->control_unload) 392 dobj->ops->control_unload(comp, dobj); 393 394 snd_ctl_remove(card, dobj->control.kcontrol); 395 list_del(&dobj->list); 396 397 soc_tplg_denum_remove_values(se); 398 soc_tplg_denum_remove_texts(se); 399 kfree(se); 400 } 401 402 /* remove a byte kcontrol */ 403 static void remove_bytes(struct snd_soc_component *comp, 404 struct snd_soc_dobj *dobj, int pass) 405 { 406 struct snd_card *card = comp->card->snd_card; 407 struct soc_bytes_ext *sb = 408 container_of(dobj, struct soc_bytes_ext, dobj); 409 410 if (pass != SOC_TPLG_PASS_MIXER) 411 return; 412 413 if (dobj->ops && dobj->ops->control_unload) 414 dobj->ops->control_unload(comp, dobj); 415 416 snd_ctl_remove(card, dobj->control.kcontrol); 417 list_del(&dobj->list); 418 kfree(sb); 419 } 420 421 /* remove a route */ 422 static void remove_route(struct snd_soc_component *comp, 423 struct snd_soc_dobj *dobj, int pass) 424 { 425 struct snd_soc_dapm_route *route = 426 container_of(dobj, struct snd_soc_dapm_route, dobj); 427 428 if (pass != SOC_TPLG_PASS_GRAPH) 429 return; 430 431 if (dobj->ops && dobj->ops->dapm_route_unload) 432 dobj->ops->dapm_route_unload(comp, dobj); 433 434 list_del(&dobj->list); 435 kfree(route); 436 } 437 438 /* remove a widget and it's kcontrols - routes must be removed first */ 439 static void remove_widget(struct snd_soc_component *comp, 440 struct snd_soc_dobj *dobj, int pass) 441 { 442 struct snd_card *card = comp->card->snd_card; 443 struct snd_soc_dapm_widget *w = 444 container_of(dobj, struct snd_soc_dapm_widget, dobj); 445 int i; 446 447 if (pass != SOC_TPLG_PASS_WIDGET) 448 return; 449 450 if (dobj->ops && dobj->ops->widget_unload) 451 dobj->ops->widget_unload(comp, dobj); 452 453 if (!w->kcontrols) 454 goto free_news; 455 456 /* 457 * Dynamic Widgets either have 1..N enum kcontrols or mixers. 458 * The enum may either have an array of values or strings. 459 */ 460 if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) { 461 /* enumerated widget mixer */ 462 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { 463 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 464 struct soc_enum *se = 465 (struct soc_enum *)kcontrol->private_value; 466 467 snd_ctl_remove(card, kcontrol); 468 469 /* free enum kcontrol's dvalues and dtexts */ 470 soc_tplg_denum_remove_values(se); 471 soc_tplg_denum_remove_texts(se); 472 473 kfree(se); 474 kfree(w->kcontrol_news[i].name); 475 } 476 } else { 477 /* volume mixer or bytes controls */ 478 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { 479 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 480 481 if (dobj->widget.kcontrol_type 482 == SND_SOC_TPLG_TYPE_MIXER) 483 kfree(kcontrol->tlv.p); 484 485 /* Private value is used as struct soc_mixer_control 486 * for volume mixers or soc_bytes_ext for bytes 487 * controls. 488 */ 489 kfree((void *)kcontrol->private_value); 490 snd_ctl_remove(card, kcontrol); 491 kfree(w->kcontrol_news[i].name); 492 } 493 } 494 495 free_news: 496 kfree(w->kcontrol_news); 497 498 list_del(&dobj->list); 499 500 /* widget w is freed by soc-dapm.c */ 501 } 502 503 /* remove DAI configurations */ 504 static void remove_dai(struct snd_soc_component *comp, 505 struct snd_soc_dobj *dobj, int pass) 506 { 507 struct snd_soc_dai_driver *dai_drv = 508 container_of(dobj, struct snd_soc_dai_driver, dobj); 509 struct snd_soc_dai *dai; 510 511 if (pass != SOC_TPLG_PASS_PCM_DAI) 512 return; 513 514 if (dobj->ops && dobj->ops->dai_unload) 515 dobj->ops->dai_unload(comp, dobj); 516 517 for_each_component_dais(comp, dai) 518 if (dai->driver == dai_drv) 519 dai->driver = NULL; 520 521 kfree(dai_drv->playback.stream_name); 522 kfree(dai_drv->capture.stream_name); 523 kfree(dai_drv->name); 524 list_del(&dobj->list); 525 kfree(dai_drv); 526 } 527 528 /* remove link configurations */ 529 static void remove_link(struct snd_soc_component *comp, 530 struct snd_soc_dobj *dobj, int pass) 531 { 532 struct snd_soc_dai_link *link = 533 container_of(dobj, struct snd_soc_dai_link, dobj); 534 535 if (pass != SOC_TPLG_PASS_PCM_DAI) 536 return; 537 538 if (dobj->ops && dobj->ops->link_unload) 539 dobj->ops->link_unload(comp, dobj); 540 541 list_del(&dobj->list); 542 snd_soc_remove_pcm_runtime(comp->card, 543 snd_soc_get_pcm_runtime(comp->card, link)); 544 545 kfree(link->name); 546 kfree(link->stream_name); 547 kfree(link->cpus->dai_name); 548 kfree(link); 549 } 550 551 /* unload dai link */ 552 static void remove_backend_link(struct snd_soc_component *comp, 553 struct snd_soc_dobj *dobj, int pass) 554 { 555 if (pass != SOC_TPLG_PASS_LINK) 556 return; 557 558 if (dobj->ops && dobj->ops->link_unload) 559 dobj->ops->link_unload(comp, dobj); 560 561 /* 562 * We don't free the link here as what remove_link() do since BE 563 * links are not allocated by topology. 564 * We however need to reset the dobj type to its initial values 565 */ 566 dobj->type = SND_SOC_DOBJ_NONE; 567 list_del(&dobj->list); 568 } 569 570 /* bind a kcontrol to it's IO handlers */ 571 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr, 572 struct snd_kcontrol_new *k, 573 const struct soc_tplg *tplg) 574 { 575 const struct snd_soc_tplg_kcontrol_ops *ops; 576 const struct snd_soc_tplg_bytes_ext_ops *ext_ops; 577 int num_ops, i; 578 579 if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES 580 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER 581 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE 582 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 583 struct soc_bytes_ext *sbe; 584 struct snd_soc_tplg_bytes_control *be; 585 586 sbe = (struct soc_bytes_ext *)k->private_value; 587 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr); 588 589 /* TLV bytes controls need standard kcontrol info handler, 590 * TLV callback and extended put/get handlers. 591 */ 592 k->info = snd_soc_bytes_info_ext; 593 k->tlv.c = snd_soc_bytes_tlv_callback; 594 595 /* 596 * When a topology-based implementation abuses the 597 * control interface and uses bytes_ext controls of 598 * more than 512 bytes, we need to disable the size 599 * checks, otherwise accesses to such controls will 600 * return an -EINVAL error and prevent the card from 601 * being configured. 602 */ 603 if (IS_ENABLED(CONFIG_SND_CTL_VALIDATION) && sbe->max > 512) 604 k->access |= SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK; 605 606 ext_ops = tplg->bytes_ext_ops; 607 num_ops = tplg->bytes_ext_ops_count; 608 for (i = 0; i < num_ops; i++) { 609 if (!sbe->put && 610 ext_ops[i].id == le32_to_cpu(be->ext_ops.put)) 611 sbe->put = ext_ops[i].put; 612 if (!sbe->get && 613 ext_ops[i].id == le32_to_cpu(be->ext_ops.get)) 614 sbe->get = ext_ops[i].get; 615 } 616 617 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) && !sbe->get) 618 return -EINVAL; 619 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) && !sbe->put) 620 return -EINVAL; 621 return 0; 622 } 623 624 /* try and map vendor specific kcontrol handlers first */ 625 ops = tplg->io_ops; 626 num_ops = tplg->io_ops_count; 627 for (i = 0; i < num_ops; i++) { 628 629 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 630 k->put = ops[i].put; 631 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 632 k->get = ops[i].get; 633 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 634 k->info = ops[i].info; 635 } 636 637 /* vendor specific handlers found ? */ 638 if (k->put && k->get && k->info) 639 return 0; 640 641 /* none found so try standard kcontrol handlers */ 642 ops = io_ops; 643 num_ops = ARRAY_SIZE(io_ops); 644 for (i = 0; i < num_ops; i++) { 645 646 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 647 k->put = ops[i].put; 648 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 649 k->get = ops[i].get; 650 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 651 k->info = ops[i].info; 652 } 653 654 /* standard handlers found ? */ 655 if (k->put && k->get && k->info) 656 return 0; 657 658 /* nothing to bind */ 659 return -EINVAL; 660 } 661 662 /* bind a widgets to it's evnt handlers */ 663 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w, 664 const struct snd_soc_tplg_widget_events *events, 665 int num_events, u16 event_type) 666 { 667 int i; 668 669 w->event = NULL; 670 671 for (i = 0; i < num_events; i++) { 672 if (event_type == events[i].type) { 673 674 /* found - so assign event */ 675 w->event = events[i].event_handler; 676 return 0; 677 } 678 } 679 680 /* not found */ 681 return -EINVAL; 682 } 683 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event); 684 685 /* optionally pass new dynamic kcontrol to component driver. */ 686 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg, 687 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr) 688 { 689 if (tplg->ops && tplg->ops->control_load) 690 return tplg->ops->control_load(tplg->comp, tplg->index, k, 691 hdr); 692 693 return 0; 694 } 695 696 697 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg, 698 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale) 699 { 700 unsigned int item_len = 2 * sizeof(unsigned int); 701 unsigned int *p; 702 703 p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL); 704 if (!p) 705 return -ENOMEM; 706 707 p[0] = SNDRV_CTL_TLVT_DB_SCALE; 708 p[1] = item_len; 709 p[2] = le32_to_cpu(scale->min); 710 p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK) 711 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0); 712 713 kc->tlv.p = (void *)p; 714 return 0; 715 } 716 717 static int soc_tplg_create_tlv(struct soc_tplg *tplg, 718 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc) 719 { 720 struct snd_soc_tplg_ctl_tlv *tplg_tlv; 721 u32 access = le32_to_cpu(tc->access); 722 723 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)) 724 return 0; 725 726 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) { 727 tplg_tlv = &tc->tlv; 728 switch (le32_to_cpu(tplg_tlv->type)) { 729 case SNDRV_CTL_TLVT_DB_SCALE: 730 return soc_tplg_create_tlv_db_scale(tplg, kc, 731 &tplg_tlv->scale); 732 733 /* TODO: add support for other TLV types */ 734 default: 735 dev_dbg(tplg->dev, "Unsupported TLV type %d\n", 736 tplg_tlv->type); 737 return -EINVAL; 738 } 739 } 740 741 return 0; 742 } 743 744 static inline void soc_tplg_free_tlv(struct soc_tplg *tplg, 745 struct snd_kcontrol_new *kc) 746 { 747 kfree(kc->tlv.p); 748 } 749 750 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count, 751 size_t size) 752 { 753 struct snd_soc_tplg_bytes_control *be; 754 struct soc_bytes_ext *sbe; 755 struct snd_kcontrol_new kc; 756 int i; 757 int err = 0; 758 759 if (soc_tplg_check_elem_count(tplg, 760 sizeof(struct snd_soc_tplg_bytes_control), count, 761 size, "mixer bytes")) { 762 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n", 763 count); 764 return -EINVAL; 765 } 766 767 for (i = 0; i < count; i++) { 768 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 769 770 /* validate kcontrol */ 771 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 772 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 773 return -EINVAL; 774 775 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 776 if (sbe == NULL) 777 return -ENOMEM; 778 779 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 780 le32_to_cpu(be->priv.size)); 781 782 dev_dbg(tplg->dev, 783 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 784 be->hdr.name, be->hdr.access); 785 786 memset(&kc, 0, sizeof(kc)); 787 kc.name = be->hdr.name; 788 kc.private_value = (long)sbe; 789 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 790 kc.access = le32_to_cpu(be->hdr.access); 791 792 sbe->max = le32_to_cpu(be->max); 793 sbe->dobj.type = SND_SOC_DOBJ_BYTES; 794 sbe->dobj.ops = tplg->ops; 795 INIT_LIST_HEAD(&sbe->dobj.list); 796 797 /* map io handlers */ 798 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg); 799 if (err) { 800 soc_control_err(tplg, &be->hdr, be->hdr.name); 801 kfree(sbe); 802 break; 803 } 804 805 /* pass control to driver for optional further init */ 806 err = soc_tplg_init_kcontrol(tplg, &kc, 807 (struct snd_soc_tplg_ctl_hdr *)be); 808 if (err < 0) { 809 dev_err(tplg->dev, "ASoC: failed to init %s\n", 810 be->hdr.name); 811 kfree(sbe); 812 break; 813 } 814 815 /* register control here */ 816 err = soc_tplg_add_kcontrol(tplg, &kc, 817 &sbe->dobj.control.kcontrol); 818 if (err < 0) { 819 dev_err(tplg->dev, "ASoC: failed to add %s\n", 820 be->hdr.name); 821 kfree(sbe); 822 break; 823 } 824 825 list_add(&sbe->dobj.list, &tplg->comp->dobj_list); 826 } 827 return err; 828 829 } 830 831 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count, 832 size_t size) 833 { 834 struct snd_soc_tplg_mixer_control *mc; 835 struct soc_mixer_control *sm; 836 struct snd_kcontrol_new kc; 837 int i; 838 int err = 0; 839 840 if (soc_tplg_check_elem_count(tplg, 841 sizeof(struct snd_soc_tplg_mixer_control), 842 count, size, "mixers")) { 843 844 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n", 845 count); 846 return -EINVAL; 847 } 848 849 for (i = 0; i < count; i++) { 850 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 851 852 /* validate kcontrol */ 853 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 854 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 855 return -EINVAL; 856 857 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 858 if (sm == NULL) 859 return -ENOMEM; 860 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 861 le32_to_cpu(mc->priv.size)); 862 863 dev_dbg(tplg->dev, 864 "ASoC: adding mixer kcontrol %s with access 0x%x\n", 865 mc->hdr.name, mc->hdr.access); 866 867 memset(&kc, 0, sizeof(kc)); 868 kc.name = mc->hdr.name; 869 kc.private_value = (long)sm; 870 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 871 kc.access = le32_to_cpu(mc->hdr.access); 872 873 /* we only support FL/FR channel mapping atm */ 874 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 875 SNDRV_CHMAP_FL); 876 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 877 SNDRV_CHMAP_FR); 878 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 879 SNDRV_CHMAP_FL); 880 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 881 SNDRV_CHMAP_FR); 882 883 sm->max = le32_to_cpu(mc->max); 884 sm->min = le32_to_cpu(mc->min); 885 sm->invert = le32_to_cpu(mc->invert); 886 sm->platform_max = le32_to_cpu(mc->platform_max); 887 sm->dobj.index = tplg->index; 888 sm->dobj.ops = tplg->ops; 889 sm->dobj.type = SND_SOC_DOBJ_MIXER; 890 INIT_LIST_HEAD(&sm->dobj.list); 891 892 /* map io handlers */ 893 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg); 894 if (err) { 895 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 896 kfree(sm); 897 break; 898 } 899 900 /* create any TLV data */ 901 err = soc_tplg_create_tlv(tplg, &kc, &mc->hdr); 902 if (err < 0) { 903 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 904 mc->hdr.name); 905 kfree(sm); 906 break; 907 } 908 909 /* pass control to driver for optional further init */ 910 err = soc_tplg_init_kcontrol(tplg, &kc, 911 (struct snd_soc_tplg_ctl_hdr *) mc); 912 if (err < 0) { 913 dev_err(tplg->dev, "ASoC: failed to init %s\n", 914 mc->hdr.name); 915 soc_tplg_free_tlv(tplg, &kc); 916 kfree(sm); 917 break; 918 } 919 920 /* register control here */ 921 err = soc_tplg_add_kcontrol(tplg, &kc, 922 &sm->dobj.control.kcontrol); 923 if (err < 0) { 924 dev_err(tplg->dev, "ASoC: failed to add %s\n", 925 mc->hdr.name); 926 soc_tplg_free_tlv(tplg, &kc); 927 kfree(sm); 928 break; 929 } 930 931 list_add(&sm->dobj.list, &tplg->comp->dobj_list); 932 } 933 934 return err; 935 } 936 937 static int soc_tplg_denum_create_texts(struct soc_enum *se, 938 struct snd_soc_tplg_enum_control *ec) 939 { 940 int i, ret; 941 942 se->dobj.control.dtexts = 943 kcalloc(le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL); 944 if (se->dobj.control.dtexts == NULL) 945 return -ENOMEM; 946 947 for (i = 0; i < le32_to_cpu(ec->items); i++) { 948 949 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 950 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 951 ret = -EINVAL; 952 goto err; 953 } 954 955 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL); 956 if (!se->dobj.control.dtexts[i]) { 957 ret = -ENOMEM; 958 goto err; 959 } 960 } 961 962 se->items = le32_to_cpu(ec->items); 963 se->texts = (const char * const *)se->dobj.control.dtexts; 964 return 0; 965 966 err: 967 se->items = i; 968 soc_tplg_denum_remove_texts(se); 969 return ret; 970 } 971 972 static inline void soc_tplg_denum_remove_texts(struct soc_enum *se) 973 { 974 int i = se->items; 975 976 for (--i; i >= 0; i--) 977 kfree(se->dobj.control.dtexts[i]); 978 kfree(se->dobj.control.dtexts); 979 } 980 981 static int soc_tplg_denum_create_values(struct soc_enum *se, 982 struct snd_soc_tplg_enum_control *ec) 983 { 984 int i; 985 986 if (le32_to_cpu(ec->items) > sizeof(*ec->values)) 987 return -EINVAL; 988 989 se->dobj.control.dvalues = kzalloc(le32_to_cpu(ec->items) * 990 sizeof(u32), 991 GFP_KERNEL); 992 if (!se->dobj.control.dvalues) 993 return -ENOMEM; 994 995 /* convert from little-endian */ 996 for (i = 0; i < le32_to_cpu(ec->items); i++) { 997 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]); 998 } 999 1000 return 0; 1001 } 1002 1003 static inline void soc_tplg_denum_remove_values(struct soc_enum *se) 1004 { 1005 kfree(se->dobj.control.dvalues); 1006 } 1007 1008 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count, 1009 size_t size) 1010 { 1011 struct snd_soc_tplg_enum_control *ec; 1012 struct soc_enum *se; 1013 struct snd_kcontrol_new kc; 1014 int i; 1015 int err = 0; 1016 1017 if (soc_tplg_check_elem_count(tplg, 1018 sizeof(struct snd_soc_tplg_enum_control), 1019 count, size, "enums")) { 1020 1021 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n", 1022 count); 1023 return -EINVAL; 1024 } 1025 1026 for (i = 0; i < count; i++) { 1027 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1028 1029 /* validate kcontrol */ 1030 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1031 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1032 return -EINVAL; 1033 1034 se = kzalloc((sizeof(*se)), GFP_KERNEL); 1035 if (se == NULL) 1036 return -ENOMEM; 1037 1038 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1039 le32_to_cpu(ec->priv.size)); 1040 1041 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", 1042 ec->hdr.name, ec->items); 1043 1044 memset(&kc, 0, sizeof(kc)); 1045 kc.name = ec->hdr.name; 1046 kc.private_value = (long)se; 1047 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1048 kc.access = le32_to_cpu(ec->hdr.access); 1049 1050 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1051 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1052 SNDRV_CHMAP_FL); 1053 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1054 SNDRV_CHMAP_FL); 1055 1056 se->mask = le32_to_cpu(ec->mask); 1057 se->dobj.index = tplg->index; 1058 se->dobj.type = SND_SOC_DOBJ_ENUM; 1059 se->dobj.ops = tplg->ops; 1060 INIT_LIST_HEAD(&se->dobj.list); 1061 1062 switch (le32_to_cpu(ec->hdr.ops.info)) { 1063 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1064 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1065 err = soc_tplg_denum_create_values(se, ec); 1066 if (err < 0) { 1067 dev_err(tplg->dev, 1068 "ASoC: could not create values for %s\n", 1069 ec->hdr.name); 1070 goto err_denum; 1071 } 1072 fallthrough; 1073 case SND_SOC_TPLG_CTL_ENUM: 1074 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1075 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1076 err = soc_tplg_denum_create_texts(se, ec); 1077 if (err < 0) { 1078 dev_err(tplg->dev, 1079 "ASoC: could not create texts for %s\n", 1080 ec->hdr.name); 1081 goto err_denum; 1082 } 1083 break; 1084 default: 1085 err = -EINVAL; 1086 dev_err(tplg->dev, 1087 "ASoC: invalid enum control type %d for %s\n", 1088 ec->hdr.ops.info, ec->hdr.name); 1089 goto err_denum; 1090 } 1091 1092 /* map io handlers */ 1093 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg); 1094 if (err) { 1095 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1096 goto err_denum; 1097 } 1098 1099 /* pass control to driver for optional further init */ 1100 err = soc_tplg_init_kcontrol(tplg, &kc, 1101 (struct snd_soc_tplg_ctl_hdr *) ec); 1102 if (err < 0) { 1103 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1104 ec->hdr.name); 1105 goto err_denum; 1106 } 1107 1108 /* register control here */ 1109 err = soc_tplg_add_kcontrol(tplg, 1110 &kc, &se->dobj.control.kcontrol); 1111 if (err < 0) { 1112 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n", 1113 ec->hdr.name); 1114 goto err_denum; 1115 } 1116 1117 list_add(&se->dobj.list, &tplg->comp->dobj_list); 1118 } 1119 return 0; 1120 1121 err_denum: 1122 kfree(se); 1123 return err; 1124 } 1125 1126 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 1127 struct snd_soc_tplg_hdr *hdr) 1128 { 1129 struct snd_soc_tplg_ctl_hdr *control_hdr; 1130 int ret; 1131 int i; 1132 1133 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 1134 soc_tplg_get_offset(tplg)); 1135 1136 for (i = 0; i < le32_to_cpu(hdr->count); i++) { 1137 1138 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1139 1140 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) { 1141 dev_err(tplg->dev, "ASoC: invalid control size\n"); 1142 return -EINVAL; 1143 } 1144 1145 switch (le32_to_cpu(control_hdr->ops.info)) { 1146 case SND_SOC_TPLG_CTL_VOLSW: 1147 case SND_SOC_TPLG_CTL_STROBE: 1148 case SND_SOC_TPLG_CTL_VOLSW_SX: 1149 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1150 case SND_SOC_TPLG_CTL_RANGE: 1151 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1152 case SND_SOC_TPLG_DAPM_CTL_PIN: 1153 ret = soc_tplg_dmixer_create(tplg, 1, 1154 le32_to_cpu(hdr->payload_size)); 1155 break; 1156 case SND_SOC_TPLG_CTL_ENUM: 1157 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1158 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1159 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1160 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1161 ret = soc_tplg_denum_create(tplg, 1, 1162 le32_to_cpu(hdr->payload_size)); 1163 break; 1164 case SND_SOC_TPLG_CTL_BYTES: 1165 ret = soc_tplg_dbytes_create(tplg, 1, 1166 le32_to_cpu(hdr->payload_size)); 1167 break; 1168 default: 1169 soc_bind_err(tplg, control_hdr, i); 1170 return -EINVAL; 1171 } 1172 if (ret < 0) { 1173 dev_err(tplg->dev, "ASoC: invalid control\n"); 1174 return ret; 1175 } 1176 1177 } 1178 1179 return 0; 1180 } 1181 1182 /* optionally pass new dynamic kcontrol to component driver. */ 1183 static int soc_tplg_add_route(struct soc_tplg *tplg, 1184 struct snd_soc_dapm_route *route) 1185 { 1186 if (tplg->ops && tplg->ops->dapm_route_load) 1187 return tplg->ops->dapm_route_load(tplg->comp, tplg->index, 1188 route); 1189 1190 return 0; 1191 } 1192 1193 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1194 struct snd_soc_tplg_hdr *hdr) 1195 { 1196 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1197 struct snd_soc_tplg_dapm_graph_elem *elem; 1198 struct snd_soc_dapm_route **routes; 1199 int count, i, j; 1200 int ret = 0; 1201 1202 count = le32_to_cpu(hdr->count); 1203 1204 if (soc_tplg_check_elem_count(tplg, 1205 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1206 count, le32_to_cpu(hdr->payload_size), "graph")) { 1207 1208 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n", 1209 count); 1210 return -EINVAL; 1211 } 1212 1213 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, 1214 hdr->index); 1215 1216 /* allocate memory for pointer to array of dapm routes */ 1217 routes = kcalloc(count, sizeof(struct snd_soc_dapm_route *), 1218 GFP_KERNEL); 1219 if (!routes) 1220 return -ENOMEM; 1221 1222 /* 1223 * allocate memory for each dapm route in the array. 1224 * This needs to be done individually so that 1225 * each route can be freed when it is removed in remove_route(). 1226 */ 1227 for (i = 0; i < count; i++) { 1228 routes[i] = kzalloc(sizeof(*routes[i]), GFP_KERNEL); 1229 if (!routes[i]) { 1230 /* free previously allocated memory */ 1231 for (j = 0; j < i; j++) 1232 kfree(routes[j]); 1233 1234 kfree(routes); 1235 return -ENOMEM; 1236 } 1237 } 1238 1239 for (i = 0; i < count; i++) { 1240 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1241 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1242 1243 /* validate routes */ 1244 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1245 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1246 ret = -EINVAL; 1247 break; 1248 } 1249 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1250 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1251 ret = -EINVAL; 1252 break; 1253 } 1254 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1255 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1256 ret = -EINVAL; 1257 break; 1258 } 1259 1260 routes[i]->source = elem->source; 1261 routes[i]->sink = elem->sink; 1262 1263 /* set to NULL atm for tplg users */ 1264 routes[i]->connected = NULL; 1265 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0) 1266 routes[i]->control = NULL; 1267 else 1268 routes[i]->control = elem->control; 1269 1270 /* add route dobj to dobj_list */ 1271 routes[i]->dobj.type = SND_SOC_DOBJ_GRAPH; 1272 routes[i]->dobj.ops = tplg->ops; 1273 routes[i]->dobj.index = tplg->index; 1274 list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list); 1275 1276 ret = soc_tplg_add_route(tplg, routes[i]); 1277 if (ret < 0) { 1278 dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret); 1279 /* 1280 * this route was added to the list, it will 1281 * be freed in remove_route() so increment the 1282 * counter to skip it in the error handling 1283 * below. 1284 */ 1285 i++; 1286 break; 1287 } 1288 1289 /* add route, but keep going if some fail */ 1290 snd_soc_dapm_add_routes(dapm, routes[i], 1); 1291 } 1292 1293 /* 1294 * free memory allocated for all dapm routes not added to the 1295 * list in case of error 1296 */ 1297 if (ret < 0) { 1298 while (i < count) 1299 kfree(routes[i++]); 1300 } 1301 1302 /* 1303 * free pointer to array of dapm routes as this is no longer needed. 1304 * The memory allocated for each dapm route will be freed 1305 * when it is removed in remove_route(). 1306 */ 1307 kfree(routes); 1308 1309 return ret; 1310 } 1311 1312 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create( 1313 struct soc_tplg *tplg, int num_kcontrols) 1314 { 1315 struct snd_kcontrol_new *kc; 1316 struct soc_mixer_control *sm; 1317 struct snd_soc_tplg_mixer_control *mc; 1318 int i, err; 1319 1320 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1321 if (kc == NULL) 1322 return NULL; 1323 1324 for (i = 0; i < num_kcontrols; i++) { 1325 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1326 1327 /* validate kcontrol */ 1328 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1329 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1330 goto err_sm; 1331 1332 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 1333 if (sm == NULL) 1334 goto err_sm; 1335 1336 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 1337 le32_to_cpu(mc->priv.size)); 1338 1339 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n", 1340 mc->hdr.name, i); 1341 1342 kc[i].private_value = (long)sm; 1343 kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL); 1344 if (kc[i].name == NULL) 1345 goto err_sm; 1346 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1347 kc[i].access = le32_to_cpu(mc->hdr.access); 1348 1349 /* we only support FL/FR channel mapping atm */ 1350 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 1351 SNDRV_CHMAP_FL); 1352 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 1353 SNDRV_CHMAP_FR); 1354 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 1355 SNDRV_CHMAP_FL); 1356 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 1357 SNDRV_CHMAP_FR); 1358 1359 sm->max = le32_to_cpu(mc->max); 1360 sm->min = le32_to_cpu(mc->min); 1361 sm->invert = le32_to_cpu(mc->invert); 1362 sm->platform_max = le32_to_cpu(mc->platform_max); 1363 sm->dobj.index = tplg->index; 1364 INIT_LIST_HEAD(&sm->dobj.list); 1365 1366 /* map io handlers */ 1367 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg); 1368 if (err) { 1369 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1370 goto err_sm; 1371 } 1372 1373 /* create any TLV data */ 1374 err = soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr); 1375 if (err < 0) { 1376 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 1377 mc->hdr.name); 1378 goto err_sm; 1379 } 1380 1381 /* pass control to driver for optional further init */ 1382 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1383 (struct snd_soc_tplg_ctl_hdr *)mc); 1384 if (err < 0) { 1385 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1386 mc->hdr.name); 1387 goto err_sm; 1388 } 1389 } 1390 return kc; 1391 1392 err_sm: 1393 for (; i >= 0; i--) { 1394 soc_tplg_free_tlv(tplg, &kc[i]); 1395 sm = (struct soc_mixer_control *)kc[i].private_value; 1396 kfree(sm); 1397 kfree(kc[i].name); 1398 } 1399 kfree(kc); 1400 1401 return NULL; 1402 } 1403 1404 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create( 1405 struct soc_tplg *tplg, int num_kcontrols) 1406 { 1407 struct snd_kcontrol_new *kc; 1408 struct snd_soc_tplg_enum_control *ec; 1409 struct soc_enum *se; 1410 int i, err; 1411 1412 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1413 if (kc == NULL) 1414 return NULL; 1415 1416 for (i = 0; i < num_kcontrols; i++) { 1417 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1418 /* validate kcontrol */ 1419 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1420 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1421 goto err_se; 1422 1423 se = kzalloc(sizeof(*se), GFP_KERNEL); 1424 if (se == NULL) 1425 goto err_se; 1426 1427 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1428 le32_to_cpu(ec->priv.size)); 1429 1430 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1431 ec->hdr.name); 1432 1433 kc[i].private_value = (long)se; 1434 kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL); 1435 if (kc[i].name == NULL) 1436 goto err_se; 1437 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1438 kc[i].access = le32_to_cpu(ec->hdr.access); 1439 1440 /* we only support FL/FR channel mapping atm */ 1441 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1442 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1443 SNDRV_CHMAP_FL); 1444 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1445 SNDRV_CHMAP_FR); 1446 1447 se->items = le32_to_cpu(ec->items); 1448 se->mask = le32_to_cpu(ec->mask); 1449 se->dobj.index = tplg->index; 1450 1451 switch (le32_to_cpu(ec->hdr.ops.info)) { 1452 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1453 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1454 err = soc_tplg_denum_create_values(se, ec); 1455 if (err < 0) { 1456 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1457 ec->hdr.name); 1458 goto err_se; 1459 } 1460 fallthrough; 1461 case SND_SOC_TPLG_CTL_ENUM: 1462 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1463 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1464 err = soc_tplg_denum_create_texts(se, ec); 1465 if (err < 0) { 1466 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1467 ec->hdr.name); 1468 goto err_se; 1469 } 1470 break; 1471 default: 1472 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1473 ec->hdr.ops.info, ec->hdr.name); 1474 goto err_se; 1475 } 1476 1477 /* map io handlers */ 1478 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg); 1479 if (err) { 1480 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1481 goto err_se; 1482 } 1483 1484 /* pass control to driver for optional further init */ 1485 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1486 (struct snd_soc_tplg_ctl_hdr *)ec); 1487 if (err < 0) { 1488 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1489 ec->hdr.name); 1490 goto err_se; 1491 } 1492 } 1493 1494 return kc; 1495 1496 err_se: 1497 for (; i >= 0; i--) { 1498 /* free values and texts */ 1499 se = (struct soc_enum *)kc[i].private_value; 1500 1501 if (se) { 1502 soc_tplg_denum_remove_values(se); 1503 soc_tplg_denum_remove_texts(se); 1504 } 1505 1506 kfree(se); 1507 kfree(kc[i].name); 1508 } 1509 kfree(kc); 1510 1511 return NULL; 1512 } 1513 1514 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create( 1515 struct soc_tplg *tplg, int num_kcontrols) 1516 { 1517 struct snd_soc_tplg_bytes_control *be; 1518 struct soc_bytes_ext *sbe; 1519 struct snd_kcontrol_new *kc; 1520 int i, err; 1521 1522 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1523 if (!kc) 1524 return NULL; 1525 1526 for (i = 0; i < num_kcontrols; i++) { 1527 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1528 1529 /* validate kcontrol */ 1530 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1531 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1532 goto err_sbe; 1533 1534 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 1535 if (sbe == NULL) 1536 goto err_sbe; 1537 1538 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1539 le32_to_cpu(be->priv.size)); 1540 1541 dev_dbg(tplg->dev, 1542 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1543 be->hdr.name, be->hdr.access); 1544 1545 kc[i].private_value = (long)sbe; 1546 kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL); 1547 if (kc[i].name == NULL) 1548 goto err_sbe; 1549 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1550 kc[i].access = le32_to_cpu(be->hdr.access); 1551 1552 sbe->max = le32_to_cpu(be->max); 1553 INIT_LIST_HEAD(&sbe->dobj.list); 1554 1555 /* map standard io handlers and check for external handlers */ 1556 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg); 1557 if (err) { 1558 soc_control_err(tplg, &be->hdr, be->hdr.name); 1559 goto err_sbe; 1560 } 1561 1562 /* pass control to driver for optional further init */ 1563 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1564 (struct snd_soc_tplg_ctl_hdr *)be); 1565 if (err < 0) { 1566 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1567 be->hdr.name); 1568 goto err_sbe; 1569 } 1570 } 1571 1572 return kc; 1573 1574 err_sbe: 1575 for (; i >= 0; i--) { 1576 sbe = (struct soc_bytes_ext *)kc[i].private_value; 1577 kfree(sbe); 1578 kfree(kc[i].name); 1579 } 1580 kfree(kc); 1581 1582 return NULL; 1583 } 1584 1585 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1586 struct snd_soc_tplg_dapm_widget *w) 1587 { 1588 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1589 struct snd_soc_dapm_widget template, *widget; 1590 struct snd_soc_tplg_ctl_hdr *control_hdr; 1591 struct snd_soc_card *card = tplg->comp->card; 1592 unsigned int kcontrol_type; 1593 int ret = 0; 1594 1595 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1596 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1597 return -EINVAL; 1598 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1599 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1600 return -EINVAL; 1601 1602 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1603 w->name, w->id); 1604 1605 memset(&template, 0, sizeof(template)); 1606 1607 /* map user to kernel widget ID */ 1608 template.id = get_widget_id(le32_to_cpu(w->id)); 1609 if ((int)template.id < 0) 1610 return template.id; 1611 1612 /* strings are allocated here, but used and freed by the widget */ 1613 template.name = kstrdup(w->name, GFP_KERNEL); 1614 if (!template.name) 1615 return -ENOMEM; 1616 template.sname = kstrdup(w->sname, GFP_KERNEL); 1617 if (!template.sname) { 1618 ret = -ENOMEM; 1619 goto err; 1620 } 1621 template.reg = le32_to_cpu(w->reg); 1622 template.shift = le32_to_cpu(w->shift); 1623 template.mask = le32_to_cpu(w->mask); 1624 template.subseq = le32_to_cpu(w->subseq); 1625 template.on_val = w->invert ? 0 : 1; 1626 template.off_val = w->invert ? 1 : 0; 1627 template.ignore_suspend = le32_to_cpu(w->ignore_suspend); 1628 template.event_flags = le16_to_cpu(w->event_flags); 1629 template.dobj.index = tplg->index; 1630 1631 tplg->pos += 1632 (sizeof(struct snd_soc_tplg_dapm_widget) + 1633 le32_to_cpu(w->priv.size)); 1634 1635 if (w->num_kcontrols == 0) { 1636 kcontrol_type = 0; 1637 template.num_kcontrols = 0; 1638 goto widget; 1639 } 1640 1641 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1642 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n", 1643 w->name, w->num_kcontrols, control_hdr->type); 1644 1645 switch (le32_to_cpu(control_hdr->ops.info)) { 1646 case SND_SOC_TPLG_CTL_VOLSW: 1647 case SND_SOC_TPLG_CTL_STROBE: 1648 case SND_SOC_TPLG_CTL_VOLSW_SX: 1649 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1650 case SND_SOC_TPLG_CTL_RANGE: 1651 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1652 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */ 1653 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1654 template.kcontrol_news = 1655 soc_tplg_dapm_widget_dmixer_create(tplg, 1656 template.num_kcontrols); 1657 if (!template.kcontrol_news) { 1658 ret = -ENOMEM; 1659 goto hdr_err; 1660 } 1661 break; 1662 case SND_SOC_TPLG_CTL_ENUM: 1663 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1664 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1665 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1666 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1667 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */ 1668 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1669 template.kcontrol_news = 1670 soc_tplg_dapm_widget_denum_create(tplg, 1671 template.num_kcontrols); 1672 if (!template.kcontrol_news) { 1673 ret = -ENOMEM; 1674 goto hdr_err; 1675 } 1676 break; 1677 case SND_SOC_TPLG_CTL_BYTES: 1678 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */ 1679 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1680 template.kcontrol_news = 1681 soc_tplg_dapm_widget_dbytes_create(tplg, 1682 template.num_kcontrols); 1683 if (!template.kcontrol_news) { 1684 ret = -ENOMEM; 1685 goto hdr_err; 1686 } 1687 break; 1688 default: 1689 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1690 control_hdr->ops.get, control_hdr->ops.put, 1691 le32_to_cpu(control_hdr->ops.info)); 1692 ret = -EINVAL; 1693 goto hdr_err; 1694 } 1695 1696 widget: 1697 ret = soc_tplg_widget_load(tplg, &template, w); 1698 if (ret < 0) 1699 goto hdr_err; 1700 1701 /* card dapm mutex is held by the core if we are loading topology 1702 * data during sound card init. */ 1703 if (card->instantiated) 1704 widget = snd_soc_dapm_new_control(dapm, &template); 1705 else 1706 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1707 if (IS_ERR(widget)) { 1708 ret = PTR_ERR(widget); 1709 goto hdr_err; 1710 } 1711 1712 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1713 widget->dobj.widget.kcontrol_type = kcontrol_type; 1714 widget->dobj.ops = tplg->ops; 1715 widget->dobj.index = tplg->index; 1716 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1717 1718 ret = soc_tplg_widget_ready(tplg, widget, w); 1719 if (ret < 0) 1720 goto ready_err; 1721 1722 kfree(template.sname); 1723 kfree(template.name); 1724 1725 return 0; 1726 1727 ready_err: 1728 snd_soc_tplg_widget_remove(widget); 1729 snd_soc_dapm_free_widget(widget); 1730 hdr_err: 1731 kfree(template.sname); 1732 err: 1733 kfree(template.name); 1734 return ret; 1735 } 1736 1737 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1738 struct snd_soc_tplg_hdr *hdr) 1739 { 1740 struct snd_soc_tplg_dapm_widget *widget; 1741 int ret, count, i; 1742 1743 count = le32_to_cpu(hdr->count); 1744 1745 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1746 1747 for (i = 0; i < count; i++) { 1748 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1749 if (le32_to_cpu(widget->size) != sizeof(*widget)) { 1750 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1751 return -EINVAL; 1752 } 1753 1754 ret = soc_tplg_dapm_widget_create(tplg, widget); 1755 if (ret < 0) { 1756 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1757 widget->name); 1758 return ret; 1759 } 1760 } 1761 1762 return 0; 1763 } 1764 1765 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1766 { 1767 struct snd_soc_card *card = tplg->comp->card; 1768 int ret; 1769 1770 /* Card might not have been registered at this point. 1771 * If so, just return success. 1772 */ 1773 if (!card || !card->instantiated) { 1774 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1775 " widget card binding deferred\n"); 1776 return 0; 1777 } 1778 1779 ret = snd_soc_dapm_new_widgets(card); 1780 if (ret < 0) 1781 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1782 ret); 1783 1784 return 0; 1785 } 1786 1787 static int set_stream_info(struct snd_soc_pcm_stream *stream, 1788 struct snd_soc_tplg_stream_caps *caps) 1789 { 1790 stream->stream_name = kstrdup(caps->name, GFP_KERNEL); 1791 if (!stream->stream_name) 1792 return -ENOMEM; 1793 1794 stream->channels_min = le32_to_cpu(caps->channels_min); 1795 stream->channels_max = le32_to_cpu(caps->channels_max); 1796 stream->rates = le32_to_cpu(caps->rates); 1797 stream->rate_min = le32_to_cpu(caps->rate_min); 1798 stream->rate_max = le32_to_cpu(caps->rate_max); 1799 stream->formats = le64_to_cpu(caps->formats); 1800 stream->sig_bits = le32_to_cpu(caps->sig_bits); 1801 1802 return 0; 1803 } 1804 1805 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1806 unsigned int flag_mask, unsigned int flags) 1807 { 1808 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1809 dai_drv->symmetric_rates = 1810 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1811 1812 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1813 dai_drv->symmetric_channels = 1814 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ? 1815 1 : 0; 1816 1817 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1818 dai_drv->symmetric_samplebits = 1819 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1820 1 : 0; 1821 } 1822 1823 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1824 struct snd_soc_tplg_pcm *pcm) 1825 { 1826 struct snd_soc_dai_driver *dai_drv; 1827 struct snd_soc_pcm_stream *stream; 1828 struct snd_soc_tplg_stream_caps *caps; 1829 struct snd_soc_dai *dai; 1830 struct snd_soc_dapm_context *dapm = 1831 snd_soc_component_get_dapm(tplg->comp); 1832 int ret; 1833 1834 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1835 if (dai_drv == NULL) 1836 return -ENOMEM; 1837 1838 if (strlen(pcm->dai_name)) { 1839 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL); 1840 if (!dai_drv->name) { 1841 ret = -ENOMEM; 1842 goto err; 1843 } 1844 } 1845 dai_drv->id = le32_to_cpu(pcm->dai_id); 1846 1847 if (pcm->playback) { 1848 stream = &dai_drv->playback; 1849 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1850 ret = set_stream_info(stream, caps); 1851 if (ret < 0) 1852 goto err; 1853 } 1854 1855 if (pcm->capture) { 1856 stream = &dai_drv->capture; 1857 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1858 ret = set_stream_info(stream, caps); 1859 if (ret < 0) 1860 goto err; 1861 } 1862 1863 if (pcm->compress) 1864 dai_drv->compress_new = snd_soc_new_compress; 1865 1866 /* pass control to component driver for optional further init */ 1867 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1868 if (ret < 0) { 1869 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 1870 goto err; 1871 } 1872 1873 dai_drv->dobj.index = tplg->index; 1874 dai_drv->dobj.ops = tplg->ops; 1875 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1876 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1877 1878 /* register the DAI to the component */ 1879 dai = devm_snd_soc_register_dai(tplg->comp->dev, tplg->comp, dai_drv, false); 1880 if (!dai) 1881 return -ENOMEM; 1882 1883 /* Create the DAI widgets here */ 1884 ret = snd_soc_dapm_new_dai_widgets(dapm, dai); 1885 if (ret != 0) { 1886 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret); 1887 return ret; 1888 } 1889 1890 return 0; 1891 1892 err: 1893 kfree(dai_drv->playback.stream_name); 1894 kfree(dai_drv->capture.stream_name); 1895 kfree(dai_drv->name); 1896 kfree(dai_drv); 1897 1898 return ret; 1899 } 1900 1901 static void set_link_flags(struct snd_soc_dai_link *link, 1902 unsigned int flag_mask, unsigned int flags) 1903 { 1904 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1905 link->symmetric_rates = 1906 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1907 1908 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1909 link->symmetric_channels = 1910 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ? 1911 1 : 0; 1912 1913 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1914 link->symmetric_samplebits = 1915 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1916 1 : 0; 1917 1918 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1919 link->ignore_suspend = 1920 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ? 1921 1 : 0; 1922 } 1923 1924 /* create the FE DAI link */ 1925 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1926 struct snd_soc_tplg_pcm *pcm) 1927 { 1928 struct snd_soc_dai_link *link; 1929 struct snd_soc_dai_link_component *dlc; 1930 int ret; 1931 1932 /* link + cpu + codec + platform */ 1933 link = kzalloc(sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1934 if (link == NULL) 1935 return -ENOMEM; 1936 1937 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1938 1939 link->cpus = &dlc[0]; 1940 link->codecs = &dlc[1]; 1941 link->platforms = &dlc[2]; 1942 1943 link->num_cpus = 1; 1944 link->num_codecs = 1; 1945 link->num_platforms = 1; 1946 1947 link->dobj.index = tplg->index; 1948 link->dobj.ops = tplg->ops; 1949 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1950 1951 if (strlen(pcm->pcm_name)) { 1952 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1953 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1954 if (!link->name || !link->stream_name) { 1955 ret = -ENOMEM; 1956 goto err; 1957 } 1958 } 1959 link->id = le32_to_cpu(pcm->pcm_id); 1960 1961 if (strlen(pcm->dai_name)) { 1962 link->cpus->dai_name = kstrdup(pcm->dai_name, GFP_KERNEL); 1963 if (!link->cpus->dai_name) { 1964 ret = -ENOMEM; 1965 goto err; 1966 } 1967 } 1968 1969 link->codecs->name = "snd-soc-dummy"; 1970 link->codecs->dai_name = "snd-soc-dummy-dai"; 1971 1972 link->platforms->name = "snd-soc-dummy"; 1973 1974 /* enable DPCM */ 1975 link->dynamic = 1; 1976 link->dpcm_playback = le32_to_cpu(pcm->playback); 1977 link->dpcm_capture = le32_to_cpu(pcm->capture); 1978 if (pcm->flag_mask) 1979 set_link_flags(link, 1980 le32_to_cpu(pcm->flag_mask), 1981 le32_to_cpu(pcm->flags)); 1982 1983 /* pass control to component driver for optional further init */ 1984 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1985 if (ret < 0) { 1986 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n"); 1987 goto err; 1988 } 1989 1990 ret = snd_soc_add_pcm_runtime(tplg->comp->card, link); 1991 if (ret < 0) { 1992 dev_err(tplg->comp->dev, "ASoC: adding FE link failed\n"); 1993 goto err; 1994 } 1995 1996 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1997 1998 return 0; 1999 err: 2000 kfree(link->name); 2001 kfree(link->stream_name); 2002 kfree(link->cpus->dai_name); 2003 kfree(link); 2004 return ret; 2005 } 2006 2007 /* create a FE DAI and DAI link from the PCM object */ 2008 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 2009 struct snd_soc_tplg_pcm *pcm) 2010 { 2011 int ret; 2012 2013 ret = soc_tplg_dai_create(tplg, pcm); 2014 if (ret < 0) 2015 return ret; 2016 2017 return soc_tplg_fe_link_create(tplg, pcm); 2018 } 2019 2020 /* copy stream caps from the old version 4 of source */ 2021 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 2022 struct snd_soc_tplg_stream_caps_v4 *src) 2023 { 2024 dest->size = cpu_to_le32(sizeof(*dest)); 2025 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2026 dest->formats = src->formats; 2027 dest->rates = src->rates; 2028 dest->rate_min = src->rate_min; 2029 dest->rate_max = src->rate_max; 2030 dest->channels_min = src->channels_min; 2031 dest->channels_max = src->channels_max; 2032 dest->periods_min = src->periods_min; 2033 dest->periods_max = src->periods_max; 2034 dest->period_size_min = src->period_size_min; 2035 dest->period_size_max = src->period_size_max; 2036 dest->buffer_size_min = src->buffer_size_min; 2037 dest->buffer_size_max = src->buffer_size_max; 2038 } 2039 2040 /** 2041 * pcm_new_ver - Create the new version of PCM from the old version. 2042 * @tplg: topology context 2043 * @src: older version of pcm as a source 2044 * @pcm: latest version of pcm created from the source 2045 * 2046 * Support from vesion 4. User should free the returned pcm manually. 2047 */ 2048 static int pcm_new_ver(struct soc_tplg *tplg, 2049 struct snd_soc_tplg_pcm *src, 2050 struct snd_soc_tplg_pcm **pcm) 2051 { 2052 struct snd_soc_tplg_pcm *dest; 2053 struct snd_soc_tplg_pcm_v4 *src_v4; 2054 int i; 2055 2056 *pcm = NULL; 2057 2058 if (le32_to_cpu(src->size) != sizeof(*src_v4)) { 2059 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 2060 return -EINVAL; 2061 } 2062 2063 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 2064 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 2065 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2066 if (!dest) 2067 return -ENOMEM; 2068 2069 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2070 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2071 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2072 dest->pcm_id = src_v4->pcm_id; 2073 dest->dai_id = src_v4->dai_id; 2074 dest->playback = src_v4->playback; 2075 dest->capture = src_v4->capture; 2076 dest->compress = src_v4->compress; 2077 dest->num_streams = src_v4->num_streams; 2078 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2079 memcpy(&dest->stream[i], &src_v4->stream[i], 2080 sizeof(struct snd_soc_tplg_stream)); 2081 2082 for (i = 0; i < 2; i++) 2083 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 2084 2085 *pcm = dest; 2086 return 0; 2087 } 2088 2089 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 2090 struct snd_soc_tplg_hdr *hdr) 2091 { 2092 struct snd_soc_tplg_pcm *pcm, *_pcm; 2093 int count; 2094 int size; 2095 int i; 2096 bool abi_match; 2097 int ret; 2098 2099 count = le32_to_cpu(hdr->count); 2100 2101 /* check the element size and count */ 2102 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 2103 size = le32_to_cpu(pcm->size); 2104 if (size > sizeof(struct snd_soc_tplg_pcm) 2105 || size < sizeof(struct snd_soc_tplg_pcm_v4)) { 2106 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 2107 size); 2108 return -EINVAL; 2109 } 2110 2111 if (soc_tplg_check_elem_count(tplg, 2112 size, count, 2113 le32_to_cpu(hdr->payload_size), 2114 "PCM DAI")) { 2115 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 2116 count); 2117 return -EINVAL; 2118 } 2119 2120 for (i = 0; i < count; i++) { 2121 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 2122 size = le32_to_cpu(pcm->size); 2123 2124 /* check ABI version by size, create a new version of pcm 2125 * if abi not match. 2126 */ 2127 if (size == sizeof(*pcm)) { 2128 abi_match = true; 2129 _pcm = pcm; 2130 } else { 2131 abi_match = false; 2132 ret = pcm_new_ver(tplg, pcm, &_pcm); 2133 if (ret < 0) 2134 return ret; 2135 } 2136 2137 /* create the FE DAIs and DAI links */ 2138 ret = soc_tplg_pcm_create(tplg, _pcm); 2139 if (ret < 0) { 2140 if (!abi_match) 2141 kfree(_pcm); 2142 return ret; 2143 } 2144 2145 /* offset by version-specific struct size and 2146 * real priv data size 2147 */ 2148 tplg->pos += size + le32_to_cpu(_pcm->priv.size); 2149 2150 if (!abi_match) 2151 kfree(_pcm); /* free the duplicated one */ 2152 } 2153 2154 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 2155 2156 return 0; 2157 } 2158 2159 /** 2160 * set_link_hw_format - Set the HW audio format of the physical DAI link. 2161 * @link: &snd_soc_dai_link which should be updated 2162 * @cfg: physical link configs. 2163 * 2164 * Topology context contains a list of supported HW formats (configs) and 2165 * a default format ID for the physical link. This function will use this 2166 * default ID to choose the HW format to set the link's DAI format for init. 2167 */ 2168 static void set_link_hw_format(struct snd_soc_dai_link *link, 2169 struct snd_soc_tplg_link_config *cfg) 2170 { 2171 struct snd_soc_tplg_hw_config *hw_config; 2172 unsigned char bclk_master, fsync_master; 2173 unsigned char invert_bclk, invert_fsync; 2174 int i; 2175 2176 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 2177 hw_config = &cfg->hw_config[i]; 2178 if (hw_config->id != cfg->default_hw_config_id) 2179 continue; 2180 2181 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 2182 SND_SOC_DAIFMT_FORMAT_MASK; 2183 2184 /* clock gating */ 2185 switch (hw_config->clock_gated) { 2186 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 2187 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 2188 break; 2189 2190 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 2191 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 2192 break; 2193 2194 default: 2195 /* ignore the value */ 2196 break; 2197 } 2198 2199 /* clock signal polarity */ 2200 invert_bclk = hw_config->invert_bclk; 2201 invert_fsync = hw_config->invert_fsync; 2202 if (!invert_bclk && !invert_fsync) 2203 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 2204 else if (!invert_bclk && invert_fsync) 2205 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 2206 else if (invert_bclk && !invert_fsync) 2207 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 2208 else 2209 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 2210 2211 /* clock masters */ 2212 bclk_master = (hw_config->bclk_master == 2213 SND_SOC_TPLG_BCLK_CM); 2214 fsync_master = (hw_config->fsync_master == 2215 SND_SOC_TPLG_FSYNC_CM); 2216 if (bclk_master && fsync_master) 2217 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; 2218 else if (!bclk_master && fsync_master) 2219 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; 2220 else if (bclk_master && !fsync_master) 2221 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; 2222 else 2223 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; 2224 } 2225 } 2226 2227 /** 2228 * link_new_ver - Create a new physical link config from the old 2229 * version of source. 2230 * @tplg: topology context 2231 * @src: old version of phyical link config as a source 2232 * @link: latest version of physical link config created from the source 2233 * 2234 * Support from vesion 4. User need free the returned link config manually. 2235 */ 2236 static int link_new_ver(struct soc_tplg *tplg, 2237 struct snd_soc_tplg_link_config *src, 2238 struct snd_soc_tplg_link_config **link) 2239 { 2240 struct snd_soc_tplg_link_config *dest; 2241 struct snd_soc_tplg_link_config_v4 *src_v4; 2242 int i; 2243 2244 *link = NULL; 2245 2246 if (le32_to_cpu(src->size) != 2247 sizeof(struct snd_soc_tplg_link_config_v4)) { 2248 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2249 return -EINVAL; 2250 } 2251 2252 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2253 2254 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2255 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2256 if (!dest) 2257 return -ENOMEM; 2258 2259 dest->size = cpu_to_le32(sizeof(*dest)); 2260 dest->id = src_v4->id; 2261 dest->num_streams = src_v4->num_streams; 2262 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2263 memcpy(&dest->stream[i], &src_v4->stream[i], 2264 sizeof(struct snd_soc_tplg_stream)); 2265 2266 *link = dest; 2267 return 0; 2268 } 2269 2270 /** 2271 * snd_soc_find_dai_link - Find a DAI link 2272 * 2273 * @card: soc card 2274 * @id: DAI link ID to match 2275 * @name: DAI link name to match, optional 2276 * @stream_name: DAI link stream name to match, optional 2277 * 2278 * This function will search all existing DAI links of the soc card to 2279 * find the link of the same ID. Since DAI links may not have their 2280 * unique ID, so name and stream name should also match if being 2281 * specified. 2282 * 2283 * Return: pointer of DAI link, or NULL if not found. 2284 */ 2285 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, 2286 int id, const char *name, 2287 const char *stream_name) 2288 { 2289 struct snd_soc_pcm_runtime *rtd; 2290 struct snd_soc_dai_link *link; 2291 2292 for_each_card_rtds(card, rtd) { 2293 link = rtd->dai_link; 2294 2295 if (link->id != id) 2296 continue; 2297 2298 if (name && (!link->name || strcmp(name, link->name))) 2299 continue; 2300 2301 if (stream_name && (!link->stream_name 2302 || strcmp(stream_name, link->stream_name))) 2303 continue; 2304 2305 return link; 2306 } 2307 2308 return NULL; 2309 } 2310 2311 /* Find and configure an existing physical DAI link */ 2312 static int soc_tplg_link_config(struct soc_tplg *tplg, 2313 struct snd_soc_tplg_link_config *cfg) 2314 { 2315 struct snd_soc_dai_link *link; 2316 const char *name, *stream_name; 2317 size_t len; 2318 int ret; 2319 2320 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2321 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2322 return -EINVAL; 2323 else if (len) 2324 name = cfg->name; 2325 else 2326 name = NULL; 2327 2328 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2329 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2330 return -EINVAL; 2331 else if (len) 2332 stream_name = cfg->stream_name; 2333 else 2334 stream_name = NULL; 2335 2336 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 2337 name, stream_name); 2338 if (!link) { 2339 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2340 name, cfg->id); 2341 return -EINVAL; 2342 } 2343 2344 /* hw format */ 2345 if (cfg->num_hw_configs) 2346 set_link_hw_format(link, cfg); 2347 2348 /* flags */ 2349 if (cfg->flag_mask) 2350 set_link_flags(link, 2351 le32_to_cpu(cfg->flag_mask), 2352 le32_to_cpu(cfg->flags)); 2353 2354 /* pass control to component driver for optional further init */ 2355 ret = soc_tplg_dai_link_load(tplg, link, cfg); 2356 if (ret < 0) { 2357 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2358 return ret; 2359 } 2360 2361 /* for unloading it in snd_soc_tplg_component_remove */ 2362 link->dobj.index = tplg->index; 2363 link->dobj.ops = tplg->ops; 2364 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 2365 list_add(&link->dobj.list, &tplg->comp->dobj_list); 2366 2367 return 0; 2368 } 2369 2370 2371 /* Load physical link config elements from the topology context */ 2372 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2373 struct snd_soc_tplg_hdr *hdr) 2374 { 2375 struct snd_soc_tplg_link_config *link, *_link; 2376 int count; 2377 int size; 2378 int i, ret; 2379 bool abi_match; 2380 2381 count = le32_to_cpu(hdr->count); 2382 2383 /* check the element size and count */ 2384 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2385 size = le32_to_cpu(link->size); 2386 if (size > sizeof(struct snd_soc_tplg_link_config) 2387 || size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2388 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2389 size); 2390 return -EINVAL; 2391 } 2392 2393 if (soc_tplg_check_elem_count(tplg, 2394 size, count, 2395 le32_to_cpu(hdr->payload_size), 2396 "physical link config")) { 2397 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2398 count); 2399 return -EINVAL; 2400 } 2401 2402 /* config physical DAI links */ 2403 for (i = 0; i < count; i++) { 2404 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2405 size = le32_to_cpu(link->size); 2406 if (size == sizeof(*link)) { 2407 abi_match = true; 2408 _link = link; 2409 } else { 2410 abi_match = false; 2411 ret = link_new_ver(tplg, link, &_link); 2412 if (ret < 0) 2413 return ret; 2414 } 2415 2416 ret = soc_tplg_link_config(tplg, _link); 2417 if (ret < 0) { 2418 if (!abi_match) 2419 kfree(_link); 2420 return ret; 2421 } 2422 2423 /* offset by version-specific struct size and 2424 * real priv data size 2425 */ 2426 tplg->pos += size + le32_to_cpu(_link->priv.size); 2427 2428 if (!abi_match) 2429 kfree(_link); /* free the duplicated one */ 2430 } 2431 2432 return 0; 2433 } 2434 2435 /** 2436 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2437 * @tplg: topology context 2438 * @d: physical DAI configs. 2439 * 2440 * The physical dai should already be registered by the platform driver. 2441 * The platform driver should specify the DAI name and ID for matching. 2442 */ 2443 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2444 struct snd_soc_tplg_dai *d) 2445 { 2446 struct snd_soc_dai_link_component dai_component; 2447 struct snd_soc_dai *dai; 2448 struct snd_soc_dai_driver *dai_drv; 2449 struct snd_soc_pcm_stream *stream; 2450 struct snd_soc_tplg_stream_caps *caps; 2451 int ret; 2452 2453 memset(&dai_component, 0, sizeof(dai_component)); 2454 2455 dai_component.dai_name = d->dai_name; 2456 dai = snd_soc_find_dai(&dai_component); 2457 if (!dai) { 2458 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2459 d->dai_name); 2460 return -EINVAL; 2461 } 2462 2463 if (le32_to_cpu(d->dai_id) != dai->id) { 2464 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2465 d->dai_name); 2466 return -EINVAL; 2467 } 2468 2469 dai_drv = dai->driver; 2470 if (!dai_drv) 2471 return -EINVAL; 2472 2473 if (d->playback) { 2474 stream = &dai_drv->playback; 2475 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2476 ret = set_stream_info(stream, caps); 2477 if (ret < 0) 2478 goto err; 2479 } 2480 2481 if (d->capture) { 2482 stream = &dai_drv->capture; 2483 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2484 ret = set_stream_info(stream, caps); 2485 if (ret < 0) 2486 goto err; 2487 } 2488 2489 if (d->flag_mask) 2490 set_dai_flags(dai_drv, 2491 le32_to_cpu(d->flag_mask), 2492 le32_to_cpu(d->flags)); 2493 2494 /* pass control to component driver for optional further init */ 2495 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2496 if (ret < 0) { 2497 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 2498 goto err; 2499 } 2500 2501 return 0; 2502 2503 err: 2504 kfree(dai_drv->playback.stream_name); 2505 kfree(dai_drv->capture.stream_name); 2506 return ret; 2507 } 2508 2509 /* load physical DAI elements */ 2510 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2511 struct snd_soc_tplg_hdr *hdr) 2512 { 2513 struct snd_soc_tplg_dai *dai; 2514 int count; 2515 int i, ret; 2516 2517 count = le32_to_cpu(hdr->count); 2518 2519 /* config the existing BE DAIs */ 2520 for (i = 0; i < count; i++) { 2521 dai = (struct snd_soc_tplg_dai *)tplg->pos; 2522 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 2523 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2524 return -EINVAL; 2525 } 2526 2527 ret = soc_tplg_dai_config(tplg, dai); 2528 if (ret < 0) { 2529 dev_err(tplg->dev, "ASoC: failed to configure DAI\n"); 2530 return ret; 2531 } 2532 2533 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 2534 } 2535 2536 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2537 return 0; 2538 } 2539 2540 /** 2541 * manifest_new_ver - Create a new version of manifest from the old version 2542 * of source. 2543 * @tplg: topology context 2544 * @src: old version of manifest as a source 2545 * @manifest: latest version of manifest created from the source 2546 * 2547 * Support from vesion 4. Users need free the returned manifest manually. 2548 */ 2549 static int manifest_new_ver(struct soc_tplg *tplg, 2550 struct snd_soc_tplg_manifest *src, 2551 struct snd_soc_tplg_manifest **manifest) 2552 { 2553 struct snd_soc_tplg_manifest *dest; 2554 struct snd_soc_tplg_manifest_v4 *src_v4; 2555 int size; 2556 2557 *manifest = NULL; 2558 2559 size = le32_to_cpu(src->size); 2560 if (size != sizeof(*src_v4)) { 2561 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", 2562 size); 2563 if (size) 2564 return -EINVAL; 2565 src->size = cpu_to_le32(sizeof(*src_v4)); 2566 } 2567 2568 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2569 2570 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2571 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size), 2572 GFP_KERNEL); 2573 if (!dest) 2574 return -ENOMEM; 2575 2576 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2577 dest->control_elems = src_v4->control_elems; 2578 dest->widget_elems = src_v4->widget_elems; 2579 dest->graph_elems = src_v4->graph_elems; 2580 dest->pcm_elems = src_v4->pcm_elems; 2581 dest->dai_link_elems = src_v4->dai_link_elems; 2582 dest->priv.size = src_v4->priv.size; 2583 if (dest->priv.size) 2584 memcpy(dest->priv.data, src_v4->priv.data, 2585 le32_to_cpu(src_v4->priv.size)); 2586 2587 *manifest = dest; 2588 return 0; 2589 } 2590 2591 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2592 struct snd_soc_tplg_hdr *hdr) 2593 { 2594 struct snd_soc_tplg_manifest *manifest, *_manifest; 2595 bool abi_match; 2596 int ret = 0; 2597 2598 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2599 2600 /* check ABI version by size, create a new manifest if abi not match */ 2601 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) { 2602 abi_match = true; 2603 _manifest = manifest; 2604 } else { 2605 abi_match = false; 2606 ret = manifest_new_ver(tplg, manifest, &_manifest); 2607 if (ret < 0) 2608 return ret; 2609 } 2610 2611 /* pass control to component driver for optional further init */ 2612 if (tplg->ops && tplg->ops->manifest) 2613 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest); 2614 2615 if (!abi_match) /* free the duplicated one */ 2616 kfree(_manifest); 2617 2618 return ret; 2619 } 2620 2621 /* validate header magic, size and type */ 2622 static int soc_valid_header(struct soc_tplg *tplg, 2623 struct snd_soc_tplg_hdr *hdr) 2624 { 2625 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2626 return 0; 2627 2628 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 2629 dev_err(tplg->dev, 2630 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2631 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2632 tplg->fw->size); 2633 return -EINVAL; 2634 } 2635 2636 /* big endian firmware objects not supported atm */ 2637 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) { 2638 dev_err(tplg->dev, 2639 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2640 tplg->pass, hdr->magic, 2641 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2642 return -EINVAL; 2643 } 2644 2645 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2646 dev_err(tplg->dev, 2647 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2648 tplg->pass, hdr->magic, 2649 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2650 return -EINVAL; 2651 } 2652 2653 /* Support ABI from version 4 */ 2654 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2655 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2656 dev_err(tplg->dev, 2657 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2658 tplg->pass, hdr->abi, 2659 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2660 tplg->fw->size); 2661 return -EINVAL; 2662 } 2663 2664 if (hdr->payload_size == 0) { 2665 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2666 soc_tplg_get_hdr_offset(tplg)); 2667 return -EINVAL; 2668 } 2669 2670 return 1; 2671 } 2672 2673 /* check header type and call appropriate handler */ 2674 static int soc_tplg_load_header(struct soc_tplg *tplg, 2675 struct snd_soc_tplg_hdr *hdr) 2676 { 2677 int (*elem_load)(struct soc_tplg *tplg, 2678 struct snd_soc_tplg_hdr *hdr); 2679 unsigned int hdr_pass; 2680 2681 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2682 2683 /* check for matching ID */ 2684 if (le32_to_cpu(hdr->index) != tplg->req_index && 2685 tplg->req_index != SND_SOC_TPLG_INDEX_ALL) 2686 return 0; 2687 2688 tplg->index = le32_to_cpu(hdr->index); 2689 2690 switch (le32_to_cpu(hdr->type)) { 2691 case SND_SOC_TPLG_TYPE_MIXER: 2692 case SND_SOC_TPLG_TYPE_ENUM: 2693 case SND_SOC_TPLG_TYPE_BYTES: 2694 hdr_pass = SOC_TPLG_PASS_MIXER; 2695 elem_load = soc_tplg_kcontrol_elems_load; 2696 break; 2697 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2698 hdr_pass = SOC_TPLG_PASS_GRAPH; 2699 elem_load = soc_tplg_dapm_graph_elems_load; 2700 break; 2701 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2702 hdr_pass = SOC_TPLG_PASS_WIDGET; 2703 elem_load = soc_tplg_dapm_widget_elems_load; 2704 break; 2705 case SND_SOC_TPLG_TYPE_PCM: 2706 hdr_pass = SOC_TPLG_PASS_PCM_DAI; 2707 elem_load = soc_tplg_pcm_elems_load; 2708 break; 2709 case SND_SOC_TPLG_TYPE_DAI: 2710 hdr_pass = SOC_TPLG_PASS_BE_DAI; 2711 elem_load = soc_tplg_dai_elems_load; 2712 break; 2713 case SND_SOC_TPLG_TYPE_DAI_LINK: 2714 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2715 /* physical link configurations */ 2716 hdr_pass = SOC_TPLG_PASS_LINK; 2717 elem_load = soc_tplg_link_elems_load; 2718 break; 2719 case SND_SOC_TPLG_TYPE_MANIFEST: 2720 hdr_pass = SOC_TPLG_PASS_MANIFEST; 2721 elem_load = soc_tplg_manifest_load; 2722 break; 2723 default: 2724 /* bespoke vendor data object */ 2725 hdr_pass = SOC_TPLG_PASS_VENDOR; 2726 elem_load = soc_tplg_vendor_load; 2727 break; 2728 } 2729 2730 if (tplg->pass == hdr_pass) { 2731 dev_dbg(tplg->dev, 2732 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2733 hdr->payload_size, hdr->type, hdr->version, 2734 hdr->vendor_type, tplg->pass); 2735 return elem_load(tplg, hdr); 2736 } 2737 2738 return 0; 2739 } 2740 2741 /* process the topology file headers */ 2742 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2743 { 2744 struct snd_soc_tplg_hdr *hdr; 2745 int ret; 2746 2747 tplg->pass = SOC_TPLG_PASS_START; 2748 2749 /* process the header types from start to end */ 2750 while (tplg->pass <= SOC_TPLG_PASS_END) { 2751 2752 tplg->hdr_pos = tplg->fw->data; 2753 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2754 2755 while (!soc_tplg_is_eof(tplg)) { 2756 2757 /* make sure header is valid before loading */ 2758 ret = soc_valid_header(tplg, hdr); 2759 if (ret < 0) { 2760 dev_err(tplg->dev, 2761 "ASoC: topology: invalid header: %d\n", ret); 2762 return ret; 2763 } else if (ret == 0) { 2764 break; 2765 } 2766 2767 /* load the header object */ 2768 ret = soc_tplg_load_header(tplg, hdr); 2769 if (ret < 0) { 2770 dev_err(tplg->dev, 2771 "ASoC: topology: could not load header: %d\n", ret); 2772 return ret; 2773 } 2774 2775 /* goto next header */ 2776 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2777 sizeof(struct snd_soc_tplg_hdr); 2778 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2779 } 2780 2781 /* next data type pass */ 2782 tplg->pass++; 2783 } 2784 2785 /* signal DAPM we are complete */ 2786 ret = soc_tplg_dapm_complete(tplg); 2787 if (ret < 0) 2788 dev_err(tplg->dev, 2789 "ASoC: failed to initialise DAPM from Firmware\n"); 2790 2791 return ret; 2792 } 2793 2794 static int soc_tplg_load(struct soc_tplg *tplg) 2795 { 2796 int ret; 2797 2798 ret = soc_tplg_process_headers(tplg); 2799 if (ret == 0) 2800 soc_tplg_complete(tplg); 2801 2802 return ret; 2803 } 2804 2805 /* load audio component topology from "firmware" file */ 2806 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2807 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) 2808 { 2809 struct soc_tplg tplg; 2810 int ret; 2811 2812 /* component needs to exist to keep and reference data while parsing */ 2813 if (!comp) 2814 return -EINVAL; 2815 2816 /* setup parsing context */ 2817 memset(&tplg, 0, sizeof(tplg)); 2818 tplg.fw = fw; 2819 tplg.dev = comp->dev; 2820 tplg.comp = comp; 2821 tplg.ops = ops; 2822 tplg.req_index = id; 2823 tplg.io_ops = ops->io_ops; 2824 tplg.io_ops_count = ops->io_ops_count; 2825 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2826 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2827 2828 ret = soc_tplg_load(&tplg); 2829 /* free the created components if fail to load topology */ 2830 if (ret) 2831 snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL); 2832 2833 return ret; 2834 } 2835 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2836 2837 /* remove this dynamic widget */ 2838 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) 2839 { 2840 /* make sure we are a widget */ 2841 if (w->dobj.type != SND_SOC_DOBJ_WIDGET) 2842 return; 2843 2844 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); 2845 } 2846 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); 2847 2848 /* remove all dynamic widgets from this DAPM context */ 2849 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, 2850 u32 index) 2851 { 2852 struct snd_soc_dapm_widget *w, *next_w; 2853 2854 for_each_card_widgets_safe(dapm->card, w, next_w) { 2855 2856 /* make sure we are a widget with correct context */ 2857 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) 2858 continue; 2859 2860 /* match ID */ 2861 if (w->dobj.index != index && 2862 w->dobj.index != SND_SOC_TPLG_INDEX_ALL) 2863 continue; 2864 /* check and free and dynamic widget kcontrols */ 2865 snd_soc_tplg_widget_remove(w); 2866 snd_soc_dapm_free_widget(w); 2867 } 2868 snd_soc_dapm_reset_cache(dapm); 2869 } 2870 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); 2871 2872 /* remove dynamic controls from the component driver */ 2873 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) 2874 { 2875 struct snd_soc_dobj *dobj, *next_dobj; 2876 int pass = SOC_TPLG_PASS_END; 2877 2878 /* process the header types from end to start */ 2879 while (pass >= SOC_TPLG_PASS_START) { 2880 2881 /* remove mixer controls */ 2882 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2883 list) { 2884 2885 /* match index */ 2886 if (dobj->index != index && 2887 index != SND_SOC_TPLG_INDEX_ALL) 2888 continue; 2889 2890 switch (dobj->type) { 2891 case SND_SOC_DOBJ_MIXER: 2892 remove_mixer(comp, dobj, pass); 2893 break; 2894 case SND_SOC_DOBJ_ENUM: 2895 remove_enum(comp, dobj, pass); 2896 break; 2897 case SND_SOC_DOBJ_BYTES: 2898 remove_bytes(comp, dobj, pass); 2899 break; 2900 case SND_SOC_DOBJ_GRAPH: 2901 remove_route(comp, dobj, pass); 2902 break; 2903 case SND_SOC_DOBJ_WIDGET: 2904 remove_widget(comp, dobj, pass); 2905 break; 2906 case SND_SOC_DOBJ_PCM: 2907 remove_dai(comp, dobj, pass); 2908 break; 2909 case SND_SOC_DOBJ_DAI_LINK: 2910 remove_link(comp, dobj, pass); 2911 break; 2912 case SND_SOC_DOBJ_BACKEND_LINK: 2913 /* 2914 * call link_unload ops if extra 2915 * deinitialization is needed. 2916 */ 2917 remove_backend_link(comp, dobj, pass); 2918 break; 2919 default: 2920 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2921 dobj->type); 2922 break; 2923 } 2924 } 2925 pass--; 2926 } 2927 2928 /* let caller know if FW can be freed when no objects are left */ 2929 return !list_empty(&comp->dobj_list); 2930 } 2931 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2932