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