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 /* 34 * We make several passes over the data (since it wont necessarily be ordered) 35 * and process objects in the following order. This guarantees the component 36 * drivers will be ready with any vendor data before the mixers and DAPM objects 37 * are loaded (that may make use of the vendor data). 38 */ 39 #define SOC_TPLG_PASS_MANIFEST 0 40 #define SOC_TPLG_PASS_VENDOR 1 41 #define SOC_TPLG_PASS_MIXER 2 42 #define SOC_TPLG_PASS_WIDGET 3 43 #define SOC_TPLG_PASS_PCM_DAI 4 44 #define SOC_TPLG_PASS_GRAPH 5 45 #define SOC_TPLG_PASS_PINS 6 46 #define SOC_TPLG_PASS_BE_DAI 7 47 #define SOC_TPLG_PASS_LINK 8 48 49 #define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST 50 #define SOC_TPLG_PASS_END SOC_TPLG_PASS_LINK 51 52 /* topology context */ 53 struct soc_tplg { 54 const struct firmware *fw; 55 56 /* runtime FW parsing */ 57 const u8 *pos; /* read postion */ 58 const u8 *hdr_pos; /* header position */ 59 unsigned int pass; /* pass number */ 60 61 /* component caller */ 62 struct device *dev; 63 struct snd_soc_component *comp; 64 u32 index; /* current block index */ 65 u32 req_index; /* required index, only loaded/free matching blocks */ 66 67 /* vendor specific kcontrol operations */ 68 const struct snd_soc_tplg_kcontrol_ops *io_ops; 69 int io_ops_count; 70 71 /* vendor specific bytes ext handlers, for TLV bytes controls */ 72 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops; 73 int bytes_ext_ops_count; 74 75 /* optional fw loading callbacks to component drivers */ 76 struct snd_soc_tplg_ops *ops; 77 }; 78 79 static int soc_tplg_process_headers(struct soc_tplg *tplg); 80 static void soc_tplg_complete(struct soc_tplg *tplg); 81 struct snd_soc_dapm_widget * 82 snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, 83 const struct snd_soc_dapm_widget *widget); 84 struct snd_soc_dapm_widget * 85 snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, 86 const struct snd_soc_dapm_widget *widget); 87 88 /* check we dont overflow the data for this control chunk */ 89 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size, 90 unsigned int count, size_t bytes, const char *elem_type) 91 { 92 const u8 *end = tplg->pos + elem_size * count; 93 94 if (end > tplg->fw->data + tplg->fw->size) { 95 dev_err(tplg->dev, "ASoC: %s overflow end of data\n", 96 elem_type); 97 return -EINVAL; 98 } 99 100 /* check there is enough room in chunk for control. 101 extra bytes at the end of control are for vendor data here */ 102 if (elem_size * count > bytes) { 103 dev_err(tplg->dev, 104 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n", 105 elem_type, count, elem_size, bytes); 106 return -EINVAL; 107 } 108 109 return 0; 110 } 111 112 static inline int soc_tplg_is_eof(struct soc_tplg *tplg) 113 { 114 const u8 *end = tplg->hdr_pos; 115 116 if (end >= tplg->fw->data + tplg->fw->size) 117 return 1; 118 return 0; 119 } 120 121 static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg) 122 { 123 return (unsigned long)(tplg->hdr_pos - tplg->fw->data); 124 } 125 126 static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg) 127 { 128 return (unsigned long)(tplg->pos - tplg->fw->data); 129 } 130 131 /* mapping of Kcontrol types and associated operations. */ 132 static const struct snd_soc_tplg_kcontrol_ops io_ops[] = { 133 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw, 134 snd_soc_put_volsw, snd_soc_info_volsw}, 135 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx, 136 snd_soc_put_volsw_sx, NULL}, 137 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double, 138 snd_soc_put_enum_double, snd_soc_info_enum_double}, 139 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double, 140 snd_soc_put_enum_double, NULL}, 141 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get, 142 snd_soc_bytes_put, snd_soc_bytes_info}, 143 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range, 144 snd_soc_put_volsw_range, snd_soc_info_volsw_range}, 145 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx, 146 snd_soc_put_xr_sx, snd_soc_info_xr_sx}, 147 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe, 148 snd_soc_put_strobe, NULL}, 149 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw, 150 snd_soc_dapm_put_volsw, snd_soc_info_volsw}, 151 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double, 152 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double}, 153 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double, 154 snd_soc_dapm_put_enum_double, NULL}, 155 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double, 156 snd_soc_dapm_put_enum_double, NULL}, 157 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch, 158 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch}, 159 }; 160 161 struct soc_tplg_map { 162 int uid; 163 int kid; 164 }; 165 166 /* mapping of widget types from UAPI IDs to kernel IDs */ 167 static const struct soc_tplg_map dapm_map[] = { 168 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input}, 169 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output}, 170 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux}, 171 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer}, 172 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga}, 173 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv}, 174 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc}, 175 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac}, 176 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch}, 177 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre}, 178 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post}, 179 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in}, 180 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out}, 181 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in}, 182 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out}, 183 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link}, 184 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer}, 185 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler}, 186 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect}, 187 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen}, 188 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src}, 189 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc}, 190 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder}, 191 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder}, 192 }; 193 194 static int tplc_chan_get_reg(struct soc_tplg *tplg, 195 struct snd_soc_tplg_channel *chan, int map) 196 { 197 int i; 198 199 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 200 if (chan[i].id == map) 201 return chan[i].reg; 202 } 203 204 return -EINVAL; 205 } 206 207 static int tplc_chan_get_shift(struct soc_tplg *tplg, 208 struct snd_soc_tplg_channel *chan, int map) 209 { 210 int i; 211 212 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 213 if (chan[i].id == map) 214 return chan[i].shift; 215 } 216 217 return -EINVAL; 218 } 219 220 static int get_widget_id(int tplg_type) 221 { 222 int i; 223 224 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) { 225 if (tplg_type == dapm_map[i].uid) 226 return dapm_map[i].kid; 227 } 228 229 return -EINVAL; 230 } 231 232 static inline void soc_bind_err(struct soc_tplg *tplg, 233 struct snd_soc_tplg_ctl_hdr *hdr, int index) 234 { 235 dev_err(tplg->dev, 236 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n", 237 hdr->ops.get, hdr->ops.put, hdr->ops.info, index, 238 soc_tplg_get_offset(tplg)); 239 } 240 241 static inline void soc_control_err(struct soc_tplg *tplg, 242 struct snd_soc_tplg_ctl_hdr *hdr, const char *name) 243 { 244 dev_err(tplg->dev, 245 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n", 246 name, hdr->ops.get, hdr->ops.put, hdr->ops.info, 247 soc_tplg_get_offset(tplg)); 248 } 249 250 /* pass vendor data to component driver for processing */ 251 static int soc_tplg_vendor_load_(struct soc_tplg *tplg, 252 struct snd_soc_tplg_hdr *hdr) 253 { 254 int ret = 0; 255 256 if (tplg->comp && tplg->ops && tplg->ops->vendor_load) 257 ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr); 258 else { 259 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n", 260 hdr->vendor_type); 261 return -EINVAL; 262 } 263 264 if (ret < 0) 265 dev_err(tplg->dev, 266 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n", 267 soc_tplg_get_hdr_offset(tplg), 268 soc_tplg_get_hdr_offset(tplg), 269 hdr->type, hdr->vendor_type); 270 return ret; 271 } 272 273 /* pass vendor data to component driver for processing */ 274 static int soc_tplg_vendor_load(struct soc_tplg *tplg, 275 struct snd_soc_tplg_hdr *hdr) 276 { 277 if (tplg->pass != SOC_TPLG_PASS_VENDOR) 278 return 0; 279 280 return soc_tplg_vendor_load_(tplg, hdr); 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_load(struct soc_tplg *tplg, 286 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 287 { 288 if (tplg->comp && tplg->ops && tplg->ops->widget_load) 289 return tplg->ops->widget_load(tplg->comp, tplg->index, w, 290 tplg_w); 291 292 return 0; 293 } 294 295 /* optionally pass new dynamic widget to component driver. This is mainly for 296 * external widgets where we can assign private data/ops */ 297 static int soc_tplg_widget_ready(struct soc_tplg *tplg, 298 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 299 { 300 if (tplg->comp && tplg->ops && tplg->ops->widget_ready) 301 return tplg->ops->widget_ready(tplg->comp, tplg->index, w, 302 tplg_w); 303 304 return 0; 305 } 306 307 /* pass DAI configurations to component driver for extra initialization */ 308 static int soc_tplg_dai_load(struct soc_tplg *tplg, 309 struct snd_soc_dai_driver *dai_drv, 310 struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai) 311 { 312 if (tplg->comp && tplg->ops && tplg->ops->dai_load) 313 return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv, 314 pcm, dai); 315 316 return 0; 317 } 318 319 /* pass link configurations to component driver for extra initialization */ 320 static int soc_tplg_dai_link_load(struct soc_tplg *tplg, 321 struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg) 322 { 323 if (tplg->comp && tplg->ops && tplg->ops->link_load) 324 return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg); 325 326 return 0; 327 } 328 329 /* tell the component driver that all firmware has been loaded in this request */ 330 static void soc_tplg_complete(struct soc_tplg *tplg) 331 { 332 if (tplg->comp && tplg->ops && tplg->ops->complete) 333 tplg->ops->complete(tplg->comp); 334 } 335 336 /* add a dynamic kcontrol */ 337 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev, 338 const struct snd_kcontrol_new *control_new, const char *prefix, 339 void *data, struct snd_kcontrol **kcontrol) 340 { 341 int err; 342 343 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix); 344 if (*kcontrol == NULL) { 345 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n", 346 control_new->name); 347 return -ENOMEM; 348 } 349 350 err = snd_ctl_add(card, *kcontrol); 351 if (err < 0) { 352 dev_err(dev, "ASoC: Failed to add %s: %d\n", 353 control_new->name, err); 354 return err; 355 } 356 357 return 0; 358 } 359 360 /* add a dynamic kcontrol for component driver */ 361 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg, 362 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol) 363 { 364 struct snd_soc_component *comp = tplg->comp; 365 366 return soc_tplg_add_dcontrol(comp->card->snd_card, 367 comp->dev, k, NULL, comp, kcontrol); 368 } 369 370 /* remove a mixer kcontrol */ 371 static void remove_mixer(struct snd_soc_component *comp, 372 struct snd_soc_dobj *dobj, int pass) 373 { 374 struct snd_card *card = comp->card->snd_card; 375 struct soc_mixer_control *sm = 376 container_of(dobj, struct soc_mixer_control, dobj); 377 const unsigned int *p = NULL; 378 379 if (pass != SOC_TPLG_PASS_MIXER) 380 return; 381 382 if (dobj->ops && dobj->ops->control_unload) 383 dobj->ops->control_unload(comp, dobj); 384 385 if (dobj->control.kcontrol->tlv.p) 386 p = dobj->control.kcontrol->tlv.p; 387 snd_ctl_remove(card, dobj->control.kcontrol); 388 list_del(&dobj->list); 389 kfree(sm); 390 kfree(p); 391 } 392 393 /* remove an enum kcontrol */ 394 static void remove_enum(struct snd_soc_component *comp, 395 struct snd_soc_dobj *dobj, int pass) 396 { 397 struct snd_card *card = comp->card->snd_card; 398 struct soc_enum *se = container_of(dobj, struct soc_enum, dobj); 399 int i; 400 401 if (pass != SOC_TPLG_PASS_MIXER) 402 return; 403 404 if (dobj->ops && dobj->ops->control_unload) 405 dobj->ops->control_unload(comp, dobj); 406 407 snd_ctl_remove(card, dobj->control.kcontrol); 408 list_del(&dobj->list); 409 410 kfree(dobj->control.dvalues); 411 for (i = 0; i < se->items; i++) 412 kfree(dobj->control.dtexts[i]); 413 kfree(dobj->control.dtexts); 414 kfree(se); 415 } 416 417 /* remove a byte kcontrol */ 418 static void remove_bytes(struct snd_soc_component *comp, 419 struct snd_soc_dobj *dobj, int pass) 420 { 421 struct snd_card *card = comp->card->snd_card; 422 struct soc_bytes_ext *sb = 423 container_of(dobj, struct soc_bytes_ext, dobj); 424 425 if (pass != SOC_TPLG_PASS_MIXER) 426 return; 427 428 if (dobj->ops && dobj->ops->control_unload) 429 dobj->ops->control_unload(comp, dobj); 430 431 snd_ctl_remove(card, dobj->control.kcontrol); 432 list_del(&dobj->list); 433 kfree(sb); 434 } 435 436 /* remove a route */ 437 static void remove_route(struct snd_soc_component *comp, 438 struct snd_soc_dobj *dobj, int pass) 439 { 440 struct snd_soc_dapm_route *route = 441 container_of(dobj, struct snd_soc_dapm_route, dobj); 442 443 if (pass != SOC_TPLG_PASS_GRAPH) 444 return; 445 446 if (dobj->ops && dobj->ops->dapm_route_unload) 447 dobj->ops->dapm_route_unload(comp, dobj); 448 449 list_del(&dobj->list); 450 kfree(route); 451 } 452 453 /* remove a widget and it's kcontrols - routes must be removed first */ 454 static void remove_widget(struct snd_soc_component *comp, 455 struct snd_soc_dobj *dobj, int pass) 456 { 457 struct snd_card *card = comp->card->snd_card; 458 struct snd_soc_dapm_widget *w = 459 container_of(dobj, struct snd_soc_dapm_widget, dobj); 460 int i; 461 462 if (pass != SOC_TPLG_PASS_WIDGET) 463 return; 464 465 if (dobj->ops && dobj->ops->widget_unload) 466 dobj->ops->widget_unload(comp, dobj); 467 468 if (!w->kcontrols) 469 goto free_news; 470 471 /* 472 * Dynamic Widgets either have 1..N enum kcontrols or mixers. 473 * The enum may either have an array of values or strings. 474 */ 475 if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) { 476 /* enumerated widget mixer */ 477 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { 478 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 479 struct soc_enum *se = 480 (struct soc_enum *)kcontrol->private_value; 481 int j; 482 483 snd_ctl_remove(card, kcontrol); 484 485 /* free enum kcontrol's dvalues and dtexts */ 486 kfree(se->dobj.control.dvalues); 487 for (j = 0; j < se->items; j++) 488 kfree(se->dobj.control.dtexts[j]); 489 kfree(se->dobj.control.dtexts); 490 491 kfree(se); 492 kfree(w->kcontrol_news[i].name); 493 } 494 } else { 495 /* volume mixer or bytes controls */ 496 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { 497 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 498 499 if (dobj->widget.kcontrol_type 500 == SND_SOC_TPLG_TYPE_MIXER) 501 kfree(kcontrol->tlv.p); 502 503 /* Private value is used as struct soc_mixer_control 504 * for volume mixers or soc_bytes_ext for bytes 505 * controls. 506 */ 507 kfree((void *)kcontrol->private_value); 508 snd_ctl_remove(card, kcontrol); 509 kfree(w->kcontrol_news[i].name); 510 } 511 } 512 513 free_news: 514 kfree(w->kcontrol_news); 515 516 list_del(&dobj->list); 517 518 /* widget w is freed by soc-dapm.c */ 519 } 520 521 /* remove DAI configurations */ 522 static void remove_dai(struct snd_soc_component *comp, 523 struct snd_soc_dobj *dobj, int pass) 524 { 525 struct snd_soc_dai_driver *dai_drv = 526 container_of(dobj, struct snd_soc_dai_driver, dobj); 527 struct snd_soc_dai *dai; 528 529 if (pass != SOC_TPLG_PASS_PCM_DAI) 530 return; 531 532 if (dobj->ops && dobj->ops->dai_unload) 533 dobj->ops->dai_unload(comp, dobj); 534 535 list_for_each_entry(dai, &comp->dai_list, list) 536 if (dai->driver == dai_drv) 537 dai->driver = NULL; 538 539 kfree(dai_drv->name); 540 list_del(&dobj->list); 541 kfree(dai_drv); 542 } 543 544 /* remove link configurations */ 545 static void remove_link(struct snd_soc_component *comp, 546 struct snd_soc_dobj *dobj, int pass) 547 { 548 struct snd_soc_dai_link *link = 549 container_of(dobj, struct snd_soc_dai_link, dobj); 550 551 if (pass != SOC_TPLG_PASS_PCM_DAI) 552 return; 553 554 if (dobj->ops && dobj->ops->link_unload) 555 dobj->ops->link_unload(comp, dobj); 556 557 kfree(link->name); 558 kfree(link->stream_name); 559 kfree(link->cpu_dai_name); 560 561 list_del(&dobj->list); 562 snd_soc_remove_dai_link(comp->card, link); 563 kfree(link); 564 } 565 566 /* unload dai link */ 567 static void remove_backend_link(struct snd_soc_component *comp, 568 struct snd_soc_dobj *dobj, int pass) 569 { 570 if (pass != SOC_TPLG_PASS_LINK) 571 return; 572 573 if (dobj->ops && dobj->ops->link_unload) 574 dobj->ops->link_unload(comp, dobj); 575 576 /* 577 * We don't free the link here as what remove_link() do since BE 578 * links are not allocated by topology. 579 * We however need to reset the dobj type to its initial values 580 */ 581 dobj->type = SND_SOC_DOBJ_NONE; 582 list_del(&dobj->list); 583 } 584 585 /* bind a kcontrol to it's IO handlers */ 586 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr, 587 struct snd_kcontrol_new *k, 588 const struct soc_tplg *tplg) 589 { 590 const struct snd_soc_tplg_kcontrol_ops *ops; 591 const struct snd_soc_tplg_bytes_ext_ops *ext_ops; 592 int num_ops, i; 593 594 if (hdr->ops.info == SND_SOC_TPLG_CTL_BYTES 595 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER 596 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE 597 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 598 struct soc_bytes_ext *sbe; 599 struct snd_soc_tplg_bytes_control *be; 600 601 sbe = (struct soc_bytes_ext *)k->private_value; 602 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr); 603 604 /* TLV bytes controls need standard kcontrol info handler, 605 * TLV callback and extended put/get handlers. 606 */ 607 k->info = snd_soc_bytes_info_ext; 608 k->tlv.c = snd_soc_bytes_tlv_callback; 609 610 ext_ops = tplg->bytes_ext_ops; 611 num_ops = tplg->bytes_ext_ops_count; 612 for (i = 0; i < num_ops; i++) { 613 if (!sbe->put && ext_ops[i].id == be->ext_ops.put) 614 sbe->put = ext_ops[i].put; 615 if (!sbe->get && ext_ops[i].id == be->ext_ops.get) 616 sbe->get = ext_ops[i].get; 617 } 618 619 if (sbe->put && sbe->get) 620 return 0; 621 else 622 return -EINVAL; 623 } 624 625 /* try and map vendor specific kcontrol handlers first */ 626 ops = tplg->io_ops; 627 num_ops = tplg->io_ops_count; 628 for (i = 0; i < num_ops; i++) { 629 630 if (k->put == NULL && ops[i].id == hdr->ops.put) 631 k->put = ops[i].put; 632 if (k->get == NULL && ops[i].id == hdr->ops.get) 633 k->get = ops[i].get; 634 if (k->info == NULL && ops[i].id == hdr->ops.info) 635 k->info = ops[i].info; 636 } 637 638 /* vendor specific handlers found ? */ 639 if (k->put && k->get && k->info) 640 return 0; 641 642 /* none found so try standard kcontrol handlers */ 643 ops = io_ops; 644 num_ops = ARRAY_SIZE(io_ops); 645 for (i = 0; i < num_ops; i++) { 646 647 if (k->put == NULL && ops[i].id == hdr->ops.put) 648 k->put = ops[i].put; 649 if (k->get == NULL && ops[i].id == hdr->ops.get) 650 k->get = ops[i].get; 651 if (k->info == NULL && ops[i].id == hdr->ops.info) 652 k->info = ops[i].info; 653 } 654 655 /* standard handlers found ? */ 656 if (k->put && k->get && k->info) 657 return 0; 658 659 /* nothing to bind */ 660 return -EINVAL; 661 } 662 663 /* bind a widgets to it's evnt handlers */ 664 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w, 665 const struct snd_soc_tplg_widget_events *events, 666 int num_events, u16 event_type) 667 { 668 int i; 669 670 w->event = NULL; 671 672 for (i = 0; i < num_events; i++) { 673 if (event_type == events[i].type) { 674 675 /* found - so assign event */ 676 w->event = events[i].event_handler; 677 return 0; 678 } 679 } 680 681 /* not found */ 682 return -EINVAL; 683 } 684 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event); 685 686 /* optionally pass new dynamic kcontrol to component driver. */ 687 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg, 688 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr) 689 { 690 if (tplg->comp && tplg->ops && tplg->ops->control_load) 691 return tplg->ops->control_load(tplg->comp, tplg->index, k, 692 hdr); 693 694 return 0; 695 } 696 697 698 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg, 699 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale) 700 { 701 unsigned int item_len = 2 * sizeof(unsigned int); 702 unsigned int *p; 703 704 p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL); 705 if (!p) 706 return -ENOMEM; 707 708 p[0] = SNDRV_CTL_TLVT_DB_SCALE; 709 p[1] = item_len; 710 p[2] = scale->min; 711 p[3] = (scale->step & TLV_DB_SCALE_MASK) 712 | (scale->mute ? TLV_DB_SCALE_MUTE : 0); 713 714 kc->tlv.p = (void *)p; 715 return 0; 716 } 717 718 static int soc_tplg_create_tlv(struct soc_tplg *tplg, 719 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc) 720 { 721 struct snd_soc_tplg_ctl_tlv *tplg_tlv; 722 723 if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)) 724 return 0; 725 726 if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) { 727 tplg_tlv = &tc->tlv; 728 switch (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, err; 757 758 if (soc_tplg_check_elem_count(tplg, 759 sizeof(struct snd_soc_tplg_bytes_control), count, 760 size, "mixer bytes")) { 761 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n", 762 count); 763 return -EINVAL; 764 } 765 766 for (i = 0; i < count; i++) { 767 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 768 769 /* validate kcontrol */ 770 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 771 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 772 return -EINVAL; 773 774 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 775 if (sbe == NULL) 776 return -ENOMEM; 777 778 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 779 be->priv.size); 780 781 dev_dbg(tplg->dev, 782 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 783 be->hdr.name, be->hdr.access); 784 785 memset(&kc, 0, sizeof(kc)); 786 kc.name = be->hdr.name; 787 kc.private_value = (long)sbe; 788 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 789 kc.access = be->hdr.access; 790 791 sbe->max = be->max; 792 sbe->dobj.type = SND_SOC_DOBJ_BYTES; 793 sbe->dobj.ops = tplg->ops; 794 INIT_LIST_HEAD(&sbe->dobj.list); 795 796 /* map io handlers */ 797 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg); 798 if (err) { 799 soc_control_err(tplg, &be->hdr, be->hdr.name); 800 kfree(sbe); 801 continue; 802 } 803 804 /* pass control to driver for optional further init */ 805 err = soc_tplg_init_kcontrol(tplg, &kc, 806 (struct snd_soc_tplg_ctl_hdr *)be); 807 if (err < 0) { 808 dev_err(tplg->dev, "ASoC: failed to init %s\n", 809 be->hdr.name); 810 kfree(sbe); 811 continue; 812 } 813 814 /* register control here */ 815 err = soc_tplg_add_kcontrol(tplg, &kc, 816 &sbe->dobj.control.kcontrol); 817 if (err < 0) { 818 dev_err(tplg->dev, "ASoC: failed to add %s\n", 819 be->hdr.name); 820 kfree(sbe); 821 continue; 822 } 823 824 list_add(&sbe->dobj.list, &tplg->comp->dobj_list); 825 } 826 return 0; 827 828 } 829 830 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count, 831 size_t size) 832 { 833 struct snd_soc_tplg_mixer_control *mc; 834 struct soc_mixer_control *sm; 835 struct snd_kcontrol_new kc; 836 int i, err; 837 838 if (soc_tplg_check_elem_count(tplg, 839 sizeof(struct snd_soc_tplg_mixer_control), 840 count, size, "mixers")) { 841 842 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n", 843 count); 844 return -EINVAL; 845 } 846 847 for (i = 0; i < count; i++) { 848 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 849 850 /* validate kcontrol */ 851 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 852 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 853 return -EINVAL; 854 855 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 856 if (sm == NULL) 857 return -ENOMEM; 858 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 859 mc->priv.size); 860 861 dev_dbg(tplg->dev, 862 "ASoC: adding mixer kcontrol %s with access 0x%x\n", 863 mc->hdr.name, mc->hdr.access); 864 865 memset(&kc, 0, sizeof(kc)); 866 kc.name = mc->hdr.name; 867 kc.private_value = (long)sm; 868 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 869 kc.access = mc->hdr.access; 870 871 /* we only support FL/FR channel mapping atm */ 872 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 873 SNDRV_CHMAP_FL); 874 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 875 SNDRV_CHMAP_FR); 876 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 877 SNDRV_CHMAP_FL); 878 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 879 SNDRV_CHMAP_FR); 880 881 sm->max = mc->max; 882 sm->min = mc->min; 883 sm->invert = mc->invert; 884 sm->platform_max = mc->platform_max; 885 sm->dobj.index = tplg->index; 886 sm->dobj.ops = tplg->ops; 887 sm->dobj.type = SND_SOC_DOBJ_MIXER; 888 INIT_LIST_HEAD(&sm->dobj.list); 889 890 /* map io handlers */ 891 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg); 892 if (err) { 893 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 894 kfree(sm); 895 continue; 896 } 897 898 /* pass control to driver for optional further init */ 899 err = soc_tplg_init_kcontrol(tplg, &kc, 900 (struct snd_soc_tplg_ctl_hdr *) mc); 901 if (err < 0) { 902 dev_err(tplg->dev, "ASoC: failed to init %s\n", 903 mc->hdr.name); 904 kfree(sm); 905 continue; 906 } 907 908 /* create any TLV data */ 909 soc_tplg_create_tlv(tplg, &kc, &mc->hdr); 910 911 /* register control here */ 912 err = soc_tplg_add_kcontrol(tplg, &kc, 913 &sm->dobj.control.kcontrol); 914 if (err < 0) { 915 dev_err(tplg->dev, "ASoC: failed to add %s\n", 916 mc->hdr.name); 917 soc_tplg_free_tlv(tplg, &kc); 918 kfree(sm); 919 continue; 920 } 921 922 list_add(&sm->dobj.list, &tplg->comp->dobj_list); 923 } 924 925 return 0; 926 } 927 928 static int soc_tplg_denum_create_texts(struct soc_enum *se, 929 struct snd_soc_tplg_enum_control *ec) 930 { 931 int i, ret; 932 933 se->dobj.control.dtexts = 934 kcalloc(ec->items, sizeof(char *), GFP_KERNEL); 935 if (se->dobj.control.dtexts == NULL) 936 return -ENOMEM; 937 938 for (i = 0; i < ec->items; i++) { 939 940 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 941 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 942 ret = -EINVAL; 943 goto err; 944 } 945 946 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL); 947 if (!se->dobj.control.dtexts[i]) { 948 ret = -ENOMEM; 949 goto err; 950 } 951 } 952 953 se->texts = (const char * const *)se->dobj.control.dtexts; 954 return 0; 955 956 err: 957 for (--i; i >= 0; i--) 958 kfree(se->dobj.control.dtexts[i]); 959 kfree(se->dobj.control.dtexts); 960 return ret; 961 } 962 963 static int soc_tplg_denum_create_values(struct soc_enum *se, 964 struct snd_soc_tplg_enum_control *ec) 965 { 966 if (ec->items > sizeof(*ec->values)) 967 return -EINVAL; 968 969 se->dobj.control.dvalues = kmemdup(ec->values, 970 ec->items * sizeof(u32), 971 GFP_KERNEL); 972 if (!se->dobj.control.dvalues) 973 return -ENOMEM; 974 975 return 0; 976 } 977 978 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count, 979 size_t size) 980 { 981 struct snd_soc_tplg_enum_control *ec; 982 struct soc_enum *se; 983 struct snd_kcontrol_new kc; 984 int i, ret, err; 985 986 if (soc_tplg_check_elem_count(tplg, 987 sizeof(struct snd_soc_tplg_enum_control), 988 count, size, "enums")) { 989 990 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n", 991 count); 992 return -EINVAL; 993 } 994 995 for (i = 0; i < count; i++) { 996 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 997 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 998 ec->priv.size); 999 1000 /* validate kcontrol */ 1001 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1002 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1003 return -EINVAL; 1004 1005 se = kzalloc((sizeof(*se)), GFP_KERNEL); 1006 if (se == NULL) 1007 return -ENOMEM; 1008 1009 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", 1010 ec->hdr.name, ec->items); 1011 1012 memset(&kc, 0, sizeof(kc)); 1013 kc.name = ec->hdr.name; 1014 kc.private_value = (long)se; 1015 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1016 kc.access = ec->hdr.access; 1017 1018 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1019 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1020 SNDRV_CHMAP_FL); 1021 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1022 SNDRV_CHMAP_FL); 1023 1024 se->items = ec->items; 1025 se->mask = ec->mask; 1026 se->dobj.index = tplg->index; 1027 se->dobj.type = SND_SOC_DOBJ_ENUM; 1028 se->dobj.ops = tplg->ops; 1029 INIT_LIST_HEAD(&se->dobj.list); 1030 1031 switch (ec->hdr.ops.info) { 1032 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1033 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1034 err = soc_tplg_denum_create_values(se, ec); 1035 if (err < 0) { 1036 dev_err(tplg->dev, 1037 "ASoC: could not create values for %s\n", 1038 ec->hdr.name); 1039 kfree(se); 1040 continue; 1041 } 1042 /* fall through */ 1043 case SND_SOC_TPLG_CTL_ENUM: 1044 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1045 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1046 err = soc_tplg_denum_create_texts(se, ec); 1047 if (err < 0) { 1048 dev_err(tplg->dev, 1049 "ASoC: could not create texts for %s\n", 1050 ec->hdr.name); 1051 kfree(se); 1052 continue; 1053 } 1054 break; 1055 default: 1056 dev_err(tplg->dev, 1057 "ASoC: invalid enum control type %d for %s\n", 1058 ec->hdr.ops.info, ec->hdr.name); 1059 kfree(se); 1060 continue; 1061 } 1062 1063 /* map io handlers */ 1064 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg); 1065 if (err) { 1066 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1067 kfree(se); 1068 continue; 1069 } 1070 1071 /* pass control to driver for optional further init */ 1072 err = soc_tplg_init_kcontrol(tplg, &kc, 1073 (struct snd_soc_tplg_ctl_hdr *) ec); 1074 if (err < 0) { 1075 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1076 ec->hdr.name); 1077 kfree(se); 1078 continue; 1079 } 1080 1081 /* register control here */ 1082 ret = soc_tplg_add_kcontrol(tplg, 1083 &kc, &se->dobj.control.kcontrol); 1084 if (ret < 0) { 1085 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n", 1086 ec->hdr.name); 1087 kfree(se); 1088 continue; 1089 } 1090 1091 list_add(&se->dobj.list, &tplg->comp->dobj_list); 1092 } 1093 1094 return 0; 1095 } 1096 1097 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 1098 struct snd_soc_tplg_hdr *hdr) 1099 { 1100 struct snd_soc_tplg_ctl_hdr *control_hdr; 1101 int i; 1102 1103 if (tplg->pass != SOC_TPLG_PASS_MIXER) { 1104 tplg->pos += hdr->size + hdr->payload_size; 1105 return 0; 1106 } 1107 1108 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 1109 soc_tplg_get_offset(tplg)); 1110 1111 for (i = 0; i < hdr->count; i++) { 1112 1113 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1114 1115 if (control_hdr->size != sizeof(*control_hdr)) { 1116 dev_err(tplg->dev, "ASoC: invalid control size\n"); 1117 return -EINVAL; 1118 } 1119 1120 switch (control_hdr->ops.info) { 1121 case SND_SOC_TPLG_CTL_VOLSW: 1122 case SND_SOC_TPLG_CTL_STROBE: 1123 case SND_SOC_TPLG_CTL_VOLSW_SX: 1124 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1125 case SND_SOC_TPLG_CTL_RANGE: 1126 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1127 case SND_SOC_TPLG_DAPM_CTL_PIN: 1128 soc_tplg_dmixer_create(tplg, 1, hdr->payload_size); 1129 break; 1130 case SND_SOC_TPLG_CTL_ENUM: 1131 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1132 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1133 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1134 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1135 soc_tplg_denum_create(tplg, 1, hdr->payload_size); 1136 break; 1137 case SND_SOC_TPLG_CTL_BYTES: 1138 soc_tplg_dbytes_create(tplg, 1, hdr->payload_size); 1139 break; 1140 default: 1141 soc_bind_err(tplg, control_hdr, i); 1142 return -EINVAL; 1143 } 1144 } 1145 1146 return 0; 1147 } 1148 1149 /* optionally pass new dynamic kcontrol to component driver. */ 1150 static int soc_tplg_add_route(struct soc_tplg *tplg, 1151 struct snd_soc_dapm_route *route) 1152 { 1153 if (tplg->comp && tplg->ops && tplg->ops->dapm_route_load) 1154 return tplg->ops->dapm_route_load(tplg->comp, tplg->index, 1155 route); 1156 1157 return 0; 1158 } 1159 1160 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1161 struct snd_soc_tplg_hdr *hdr) 1162 { 1163 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1164 struct snd_soc_tplg_dapm_graph_elem *elem; 1165 struct snd_soc_dapm_route **routes; 1166 int count = hdr->count, i, j; 1167 int ret = 0; 1168 1169 if (tplg->pass != SOC_TPLG_PASS_GRAPH) { 1170 tplg->pos += hdr->size + hdr->payload_size; 1171 return 0; 1172 } 1173 1174 if (soc_tplg_check_elem_count(tplg, 1175 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1176 count, hdr->payload_size, "graph")) { 1177 1178 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n", 1179 count); 1180 return -EINVAL; 1181 } 1182 1183 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, 1184 hdr->index); 1185 1186 /* allocate memory for pointer to array of dapm routes */ 1187 routes = kcalloc(count, sizeof(struct snd_soc_dapm_route *), 1188 GFP_KERNEL); 1189 if (!routes) 1190 return -ENOMEM; 1191 1192 /* 1193 * allocate memory for each dapm route in the array. 1194 * This needs to be done individually so that 1195 * each route can be freed when it is removed in remove_route(). 1196 */ 1197 for (i = 0; i < count; i++) { 1198 routes[i] = kzalloc(sizeof(*routes[i]), GFP_KERNEL); 1199 if (!routes[i]) { 1200 /* free previously allocated memory */ 1201 for (j = 0; j < i; j++) 1202 kfree(routes[j]); 1203 1204 kfree(routes); 1205 return -ENOMEM; 1206 } 1207 } 1208 1209 for (i = 0; i < count; i++) { 1210 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1211 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1212 1213 /* validate routes */ 1214 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1215 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1216 ret = -EINVAL; 1217 break; 1218 } 1219 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1220 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1221 ret = -EINVAL; 1222 break; 1223 } 1224 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1225 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1226 ret = -EINVAL; 1227 break; 1228 } 1229 1230 routes[i]->source = elem->source; 1231 routes[i]->sink = elem->sink; 1232 1233 /* set to NULL atm for tplg users */ 1234 routes[i]->connected = NULL; 1235 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0) 1236 routes[i]->control = NULL; 1237 else 1238 routes[i]->control = elem->control; 1239 1240 /* add route dobj to dobj_list */ 1241 routes[i]->dobj.type = SND_SOC_DOBJ_GRAPH; 1242 routes[i]->dobj.ops = tplg->ops; 1243 routes[i]->dobj.index = tplg->index; 1244 list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list); 1245 1246 soc_tplg_add_route(tplg, routes[i]); 1247 1248 /* add route, but keep going if some fail */ 1249 snd_soc_dapm_add_routes(dapm, routes[i], 1); 1250 } 1251 1252 /* free memory allocated for all dapm routes in case of error */ 1253 if (ret < 0) 1254 for (i = 0; i < count ; i++) 1255 kfree(routes[i]); 1256 1257 /* 1258 * free pointer to array of dapm routes as this is no longer needed. 1259 * The memory allocated for each dapm route will be freed 1260 * when it is removed in remove_route(). 1261 */ 1262 kfree(routes); 1263 1264 return ret; 1265 } 1266 1267 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create( 1268 struct soc_tplg *tplg, int num_kcontrols) 1269 { 1270 struct snd_kcontrol_new *kc; 1271 struct soc_mixer_control *sm; 1272 struct snd_soc_tplg_mixer_control *mc; 1273 int i, err; 1274 1275 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1276 if (kc == NULL) 1277 return NULL; 1278 1279 for (i = 0; i < num_kcontrols; i++) { 1280 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1281 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 1282 if (sm == NULL) 1283 goto err; 1284 1285 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 1286 mc->priv.size); 1287 1288 /* validate kcontrol */ 1289 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1290 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1291 goto err_str; 1292 1293 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n", 1294 mc->hdr.name, i); 1295 1296 kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL); 1297 if (kc[i].name == NULL) 1298 goto err_str; 1299 kc[i].private_value = (long)sm; 1300 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1301 kc[i].access = mc->hdr.access; 1302 1303 /* we only support FL/FR channel mapping atm */ 1304 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 1305 SNDRV_CHMAP_FL); 1306 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 1307 SNDRV_CHMAP_FR); 1308 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 1309 SNDRV_CHMAP_FL); 1310 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 1311 SNDRV_CHMAP_FR); 1312 1313 sm->max = mc->max; 1314 sm->min = mc->min; 1315 sm->invert = mc->invert; 1316 sm->platform_max = mc->platform_max; 1317 sm->dobj.index = tplg->index; 1318 INIT_LIST_HEAD(&sm->dobj.list); 1319 1320 /* map io handlers */ 1321 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg); 1322 if (err) { 1323 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1324 kfree(sm); 1325 continue; 1326 } 1327 1328 /* pass control to driver for optional further init */ 1329 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1330 (struct snd_soc_tplg_ctl_hdr *)mc); 1331 if (err < 0) { 1332 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1333 mc->hdr.name); 1334 kfree(sm); 1335 continue; 1336 } 1337 1338 /* create any TLV data */ 1339 soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr); 1340 } 1341 return kc; 1342 1343 err_str: 1344 kfree(sm); 1345 err: 1346 for (--i; i >= 0; i--) { 1347 kfree((void *)kc[i].private_value); 1348 kfree(kc[i].name); 1349 } 1350 kfree(kc); 1351 return NULL; 1352 } 1353 1354 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create( 1355 struct soc_tplg *tplg, int num_kcontrols) 1356 { 1357 struct snd_kcontrol_new *kc; 1358 struct snd_soc_tplg_enum_control *ec; 1359 struct soc_enum *se; 1360 int i, j, err; 1361 1362 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1363 if (kc == NULL) 1364 return NULL; 1365 1366 for (i = 0; i < num_kcontrols; i++) { 1367 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1368 /* validate kcontrol */ 1369 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1370 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1371 goto err; 1372 1373 se = kzalloc(sizeof(*se), GFP_KERNEL); 1374 if (se == NULL) 1375 goto err; 1376 1377 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1378 ec->hdr.name); 1379 1380 kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL); 1381 if (kc[i].name == NULL) { 1382 kfree(se); 1383 goto err_se; 1384 } 1385 kc[i].private_value = (long)se; 1386 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1387 kc[i].access = ec->hdr.access; 1388 1389 /* we only support FL/FR channel mapping atm */ 1390 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1391 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1392 SNDRV_CHMAP_FL); 1393 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1394 SNDRV_CHMAP_FR); 1395 1396 se->items = ec->items; 1397 se->mask = ec->mask; 1398 se->dobj.index = tplg->index; 1399 1400 switch (ec->hdr.ops.info) { 1401 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1402 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1403 err = soc_tplg_denum_create_values(se, ec); 1404 if (err < 0) { 1405 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1406 ec->hdr.name); 1407 goto err_se; 1408 } 1409 /* fall through */ 1410 case SND_SOC_TPLG_CTL_ENUM: 1411 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1412 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1413 err = soc_tplg_denum_create_texts(se, ec); 1414 if (err < 0) { 1415 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1416 ec->hdr.name); 1417 goto err_se; 1418 } 1419 break; 1420 default: 1421 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1422 ec->hdr.ops.info, ec->hdr.name); 1423 goto err_se; 1424 } 1425 1426 /* map io handlers */ 1427 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg); 1428 if (err) { 1429 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1430 goto err_se; 1431 } 1432 1433 /* pass control to driver for optional further init */ 1434 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1435 (struct snd_soc_tplg_ctl_hdr *)ec); 1436 if (err < 0) { 1437 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1438 ec->hdr.name); 1439 goto err_se; 1440 } 1441 1442 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1443 ec->priv.size); 1444 } 1445 1446 return kc; 1447 1448 err_se: 1449 for (; i >= 0; i--) { 1450 /* free values and texts */ 1451 se = (struct soc_enum *)kc[i].private_value; 1452 if (!se) 1453 continue; 1454 1455 kfree(se->dobj.control.dvalues); 1456 for (j = 0; j < ec->items; j++) 1457 kfree(se->dobj.control.dtexts[j]); 1458 kfree(se->dobj.control.dtexts); 1459 1460 kfree(se); 1461 kfree(kc[i].name); 1462 } 1463 err: 1464 kfree(kc); 1465 1466 return NULL; 1467 } 1468 1469 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create( 1470 struct soc_tplg *tplg, int count) 1471 { 1472 struct snd_soc_tplg_bytes_control *be; 1473 struct soc_bytes_ext *sbe; 1474 struct snd_kcontrol_new *kc; 1475 int i, err; 1476 1477 kc = kcalloc(count, sizeof(*kc), GFP_KERNEL); 1478 if (!kc) 1479 return NULL; 1480 1481 for (i = 0; i < count; i++) { 1482 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1483 1484 /* validate kcontrol */ 1485 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1486 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1487 goto err; 1488 1489 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 1490 if (sbe == NULL) 1491 goto err; 1492 1493 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1494 be->priv.size); 1495 1496 dev_dbg(tplg->dev, 1497 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1498 be->hdr.name, be->hdr.access); 1499 1500 kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL); 1501 if (kc[i].name == NULL) { 1502 kfree(sbe); 1503 goto err; 1504 } 1505 kc[i].private_value = (long)sbe; 1506 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1507 kc[i].access = be->hdr.access; 1508 1509 sbe->max = be->max; 1510 INIT_LIST_HEAD(&sbe->dobj.list); 1511 1512 /* map standard io handlers and check for external handlers */ 1513 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg); 1514 if (err) { 1515 soc_control_err(tplg, &be->hdr, be->hdr.name); 1516 kfree(sbe); 1517 continue; 1518 } 1519 1520 /* pass control to driver for optional further init */ 1521 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1522 (struct snd_soc_tplg_ctl_hdr *)be); 1523 if (err < 0) { 1524 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1525 be->hdr.name); 1526 kfree(sbe); 1527 continue; 1528 } 1529 } 1530 1531 return kc; 1532 1533 err: 1534 for (--i; i >= 0; i--) { 1535 kfree((void *)kc[i].private_value); 1536 kfree(kc[i].name); 1537 } 1538 1539 kfree(kc); 1540 return NULL; 1541 } 1542 1543 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1544 struct snd_soc_tplg_dapm_widget *w) 1545 { 1546 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1547 struct snd_soc_dapm_widget template, *widget; 1548 struct snd_soc_tplg_ctl_hdr *control_hdr; 1549 struct snd_soc_card *card = tplg->comp->card; 1550 unsigned int kcontrol_type; 1551 int ret = 0; 1552 1553 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1554 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1555 return -EINVAL; 1556 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1557 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1558 return -EINVAL; 1559 1560 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1561 w->name, w->id); 1562 1563 memset(&template, 0, sizeof(template)); 1564 1565 /* map user to kernel widget ID */ 1566 template.id = get_widget_id(w->id); 1567 if (template.id < 0) 1568 return template.id; 1569 1570 /* strings are allocated here, but used and freed by the widget */ 1571 template.name = kstrdup(w->name, GFP_KERNEL); 1572 if (!template.name) 1573 return -ENOMEM; 1574 template.sname = kstrdup(w->sname, GFP_KERNEL); 1575 if (!template.sname) { 1576 ret = -ENOMEM; 1577 goto err; 1578 } 1579 template.reg = w->reg; 1580 template.shift = w->shift; 1581 template.mask = w->mask; 1582 template.subseq = w->subseq; 1583 template.on_val = w->invert ? 0 : 1; 1584 template.off_val = w->invert ? 1 : 0; 1585 template.ignore_suspend = w->ignore_suspend; 1586 template.event_flags = w->event_flags; 1587 template.dobj.index = tplg->index; 1588 1589 tplg->pos += 1590 (sizeof(struct snd_soc_tplg_dapm_widget) + w->priv.size); 1591 if (w->num_kcontrols == 0) { 1592 kcontrol_type = 0; 1593 template.num_kcontrols = 0; 1594 goto widget; 1595 } 1596 1597 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1598 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n", 1599 w->name, w->num_kcontrols, control_hdr->type); 1600 1601 switch (control_hdr->ops.info) { 1602 case SND_SOC_TPLG_CTL_VOLSW: 1603 case SND_SOC_TPLG_CTL_STROBE: 1604 case SND_SOC_TPLG_CTL_VOLSW_SX: 1605 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1606 case SND_SOC_TPLG_CTL_RANGE: 1607 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1608 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */ 1609 template.num_kcontrols = w->num_kcontrols; 1610 template.kcontrol_news = 1611 soc_tplg_dapm_widget_dmixer_create(tplg, 1612 template.num_kcontrols); 1613 if (!template.kcontrol_news) { 1614 ret = -ENOMEM; 1615 goto hdr_err; 1616 } 1617 break; 1618 case SND_SOC_TPLG_CTL_ENUM: 1619 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1620 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1621 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1622 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1623 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */ 1624 template.num_kcontrols = w->num_kcontrols; 1625 template.kcontrol_news = 1626 soc_tplg_dapm_widget_denum_create(tplg, 1627 template.num_kcontrols); 1628 if (!template.kcontrol_news) { 1629 ret = -ENOMEM; 1630 goto hdr_err; 1631 } 1632 break; 1633 case SND_SOC_TPLG_CTL_BYTES: 1634 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */ 1635 template.num_kcontrols = w->num_kcontrols; 1636 template.kcontrol_news = 1637 soc_tplg_dapm_widget_dbytes_create(tplg, 1638 template.num_kcontrols); 1639 if (!template.kcontrol_news) { 1640 ret = -ENOMEM; 1641 goto hdr_err; 1642 } 1643 break; 1644 default: 1645 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1646 control_hdr->ops.get, control_hdr->ops.put, 1647 control_hdr->ops.info); 1648 ret = -EINVAL; 1649 goto hdr_err; 1650 } 1651 1652 widget: 1653 ret = soc_tplg_widget_load(tplg, &template, w); 1654 if (ret < 0) 1655 goto hdr_err; 1656 1657 /* card dapm mutex is held by the core if we are loading topology 1658 * data during sound card init. */ 1659 if (card->instantiated) 1660 widget = snd_soc_dapm_new_control(dapm, &template); 1661 else 1662 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1663 if (IS_ERR(widget)) { 1664 ret = PTR_ERR(widget); 1665 goto hdr_err; 1666 } 1667 1668 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1669 widget->dobj.widget.kcontrol_type = kcontrol_type; 1670 widget->dobj.ops = tplg->ops; 1671 widget->dobj.index = tplg->index; 1672 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1673 1674 ret = soc_tplg_widget_ready(tplg, widget, w); 1675 if (ret < 0) 1676 goto ready_err; 1677 1678 kfree(template.sname); 1679 kfree(template.name); 1680 1681 return 0; 1682 1683 ready_err: 1684 snd_soc_tplg_widget_remove(widget); 1685 snd_soc_dapm_free_widget(widget); 1686 hdr_err: 1687 kfree(template.sname); 1688 err: 1689 kfree(template.name); 1690 return ret; 1691 } 1692 1693 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1694 struct snd_soc_tplg_hdr *hdr) 1695 { 1696 struct snd_soc_tplg_dapm_widget *widget; 1697 int ret, count = hdr->count, i; 1698 1699 if (tplg->pass != SOC_TPLG_PASS_WIDGET) 1700 return 0; 1701 1702 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1703 1704 for (i = 0; i < count; i++) { 1705 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1706 if (widget->size != sizeof(*widget)) { 1707 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1708 return -EINVAL; 1709 } 1710 1711 ret = soc_tplg_dapm_widget_create(tplg, widget); 1712 if (ret < 0) { 1713 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1714 widget->name); 1715 return ret; 1716 } 1717 } 1718 1719 return 0; 1720 } 1721 1722 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1723 { 1724 struct snd_soc_card *card = tplg->comp->card; 1725 int ret; 1726 1727 /* Card might not have been registered at this point. 1728 * If so, just return success. 1729 */ 1730 if (!card || !card->instantiated) { 1731 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1732 " widget card binding deferred\n"); 1733 return 0; 1734 } 1735 1736 ret = snd_soc_dapm_new_widgets(card); 1737 if (ret < 0) 1738 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1739 ret); 1740 1741 return 0; 1742 } 1743 1744 static void set_stream_info(struct snd_soc_pcm_stream *stream, 1745 struct snd_soc_tplg_stream_caps *caps) 1746 { 1747 stream->stream_name = kstrdup(caps->name, GFP_KERNEL); 1748 stream->channels_min = caps->channels_min; 1749 stream->channels_max = caps->channels_max; 1750 stream->rates = caps->rates; 1751 stream->rate_min = caps->rate_min; 1752 stream->rate_max = caps->rate_max; 1753 stream->formats = caps->formats; 1754 stream->sig_bits = caps->sig_bits; 1755 } 1756 1757 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1758 unsigned int flag_mask, unsigned int flags) 1759 { 1760 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1761 dai_drv->symmetric_rates = 1762 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1763 1764 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1765 dai_drv->symmetric_channels = 1766 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ? 1767 1 : 0; 1768 1769 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1770 dai_drv->symmetric_samplebits = 1771 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1772 1 : 0; 1773 } 1774 1775 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1776 struct snd_soc_tplg_pcm *pcm) 1777 { 1778 struct snd_soc_dai_driver *dai_drv; 1779 struct snd_soc_pcm_stream *stream; 1780 struct snd_soc_tplg_stream_caps *caps; 1781 int ret; 1782 1783 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1784 if (dai_drv == NULL) 1785 return -ENOMEM; 1786 1787 if (strlen(pcm->dai_name)) 1788 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL); 1789 dai_drv->id = pcm->dai_id; 1790 1791 if (pcm->playback) { 1792 stream = &dai_drv->playback; 1793 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1794 set_stream_info(stream, caps); 1795 } 1796 1797 if (pcm->capture) { 1798 stream = &dai_drv->capture; 1799 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1800 set_stream_info(stream, caps); 1801 } 1802 1803 if (pcm->compress) 1804 dai_drv->compress_new = snd_soc_new_compress; 1805 1806 /* pass control to component driver for optional further init */ 1807 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1808 if (ret < 0) { 1809 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 1810 kfree(dai_drv); 1811 return ret; 1812 } 1813 1814 dai_drv->dobj.index = tplg->index; 1815 dai_drv->dobj.ops = tplg->ops; 1816 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1817 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1818 1819 /* register the DAI to the component */ 1820 return snd_soc_register_dai(tplg->comp, dai_drv); 1821 } 1822 1823 static void set_link_flags(struct snd_soc_dai_link *link, 1824 unsigned int flag_mask, unsigned int flags) 1825 { 1826 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1827 link->symmetric_rates = 1828 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1829 1830 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1831 link->symmetric_channels = 1832 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ? 1833 1 : 0; 1834 1835 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1836 link->symmetric_samplebits = 1837 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1838 1 : 0; 1839 1840 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1841 link->ignore_suspend = 1842 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ? 1843 1 : 0; 1844 } 1845 1846 /* create the FE DAI link */ 1847 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1848 struct snd_soc_tplg_pcm *pcm) 1849 { 1850 struct snd_soc_dai_link *link; 1851 int ret; 1852 1853 link = kzalloc(sizeof(struct snd_soc_dai_link), GFP_KERNEL); 1854 if (link == NULL) 1855 return -ENOMEM; 1856 1857 if (strlen(pcm->pcm_name)) { 1858 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1859 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1860 } 1861 link->id = pcm->pcm_id; 1862 1863 if (strlen(pcm->dai_name)) 1864 link->cpu_dai_name = kstrdup(pcm->dai_name, GFP_KERNEL); 1865 1866 link->codec_name = "snd-soc-dummy"; 1867 link->codec_dai_name = "snd-soc-dummy-dai"; 1868 1869 /* enable DPCM */ 1870 link->dynamic = 1; 1871 link->dpcm_playback = pcm->playback; 1872 link->dpcm_capture = pcm->capture; 1873 if (pcm->flag_mask) 1874 set_link_flags(link, pcm->flag_mask, pcm->flags); 1875 1876 /* pass control to component driver for optional further init */ 1877 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1878 if (ret < 0) { 1879 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n"); 1880 kfree(link); 1881 return ret; 1882 } 1883 1884 link->dobj.index = tplg->index; 1885 link->dobj.ops = tplg->ops; 1886 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1887 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1888 1889 snd_soc_add_dai_link(tplg->comp->card, link); 1890 return 0; 1891 } 1892 1893 /* create a FE DAI and DAI link from the PCM object */ 1894 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1895 struct snd_soc_tplg_pcm *pcm) 1896 { 1897 int ret; 1898 1899 ret = soc_tplg_dai_create(tplg, pcm); 1900 if (ret < 0) 1901 return ret; 1902 1903 return soc_tplg_fe_link_create(tplg, pcm); 1904 } 1905 1906 /* copy stream caps from the old version 4 of source */ 1907 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 1908 struct snd_soc_tplg_stream_caps_v4 *src) 1909 { 1910 dest->size = sizeof(*dest); 1911 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1912 dest->formats = src->formats; 1913 dest->rates = src->rates; 1914 dest->rate_min = src->rate_min; 1915 dest->rate_max = src->rate_max; 1916 dest->channels_min = src->channels_min; 1917 dest->channels_max = src->channels_max; 1918 dest->periods_min = src->periods_min; 1919 dest->periods_max = src->periods_max; 1920 dest->period_size_min = src->period_size_min; 1921 dest->period_size_max = src->period_size_max; 1922 dest->buffer_size_min = src->buffer_size_min; 1923 dest->buffer_size_max = src->buffer_size_max; 1924 } 1925 1926 /** 1927 * pcm_new_ver - Create the new version of PCM from the old version. 1928 * @tplg: topology context 1929 * @src: older version of pcm as a source 1930 * @pcm: latest version of pcm created from the source 1931 * 1932 * Support from vesion 4. User should free the returned pcm manually. 1933 */ 1934 static int pcm_new_ver(struct soc_tplg *tplg, 1935 struct snd_soc_tplg_pcm *src, 1936 struct snd_soc_tplg_pcm **pcm) 1937 { 1938 struct snd_soc_tplg_pcm *dest; 1939 struct snd_soc_tplg_pcm_v4 *src_v4; 1940 int i; 1941 1942 *pcm = NULL; 1943 1944 if (src->size != sizeof(*src_v4)) { 1945 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 1946 return -EINVAL; 1947 } 1948 1949 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 1950 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 1951 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1952 if (!dest) 1953 return -ENOMEM; 1954 1955 dest->size = sizeof(*dest); /* size of latest abi version */ 1956 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1957 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1958 dest->pcm_id = src_v4->pcm_id; 1959 dest->dai_id = src_v4->dai_id; 1960 dest->playback = src_v4->playback; 1961 dest->capture = src_v4->capture; 1962 dest->compress = src_v4->compress; 1963 dest->num_streams = src_v4->num_streams; 1964 for (i = 0; i < dest->num_streams; i++) 1965 memcpy(&dest->stream[i], &src_v4->stream[i], 1966 sizeof(struct snd_soc_tplg_stream)); 1967 1968 for (i = 0; i < 2; i++) 1969 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 1970 1971 *pcm = dest; 1972 return 0; 1973 } 1974 1975 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1976 struct snd_soc_tplg_hdr *hdr) 1977 { 1978 struct snd_soc_tplg_pcm *pcm, *_pcm; 1979 int count = hdr->count; 1980 int i; 1981 bool abi_match; 1982 1983 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI) 1984 return 0; 1985 1986 /* check the element size and count */ 1987 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1988 if (pcm->size > sizeof(struct snd_soc_tplg_pcm) 1989 || pcm->size < sizeof(struct snd_soc_tplg_pcm_v4)) { 1990 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1991 pcm->size); 1992 return -EINVAL; 1993 } 1994 1995 if (soc_tplg_check_elem_count(tplg, 1996 pcm->size, count, 1997 hdr->payload_size, "PCM DAI")) { 1998 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 1999 count); 2000 return -EINVAL; 2001 } 2002 2003 for (i = 0; i < count; i++) { 2004 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 2005 2006 /* check ABI version by size, create a new version of pcm 2007 * if abi not match. 2008 */ 2009 if (pcm->size == sizeof(*pcm)) { 2010 abi_match = true; 2011 _pcm = pcm; 2012 } else { 2013 abi_match = false; 2014 pcm_new_ver(tplg, pcm, &_pcm); 2015 } 2016 2017 /* create the FE DAIs and DAI links */ 2018 soc_tplg_pcm_create(tplg, _pcm); 2019 2020 /* offset by version-specific struct size and 2021 * real priv data size 2022 */ 2023 tplg->pos += pcm->size + _pcm->priv.size; 2024 2025 if (!abi_match) 2026 kfree(_pcm); /* free the duplicated one */ 2027 } 2028 2029 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 2030 2031 return 0; 2032 } 2033 2034 /** 2035 * set_link_hw_format - Set the HW audio format of the physical DAI link. 2036 * @link: &snd_soc_dai_link which should be updated 2037 * @cfg: physical link configs. 2038 * 2039 * Topology context contains a list of supported HW formats (configs) and 2040 * a default format ID for the physical link. This function will use this 2041 * default ID to choose the HW format to set the link's DAI format for init. 2042 */ 2043 static void set_link_hw_format(struct snd_soc_dai_link *link, 2044 struct snd_soc_tplg_link_config *cfg) 2045 { 2046 struct snd_soc_tplg_hw_config *hw_config; 2047 unsigned char bclk_master, fsync_master; 2048 unsigned char invert_bclk, invert_fsync; 2049 int i; 2050 2051 for (i = 0; i < cfg->num_hw_configs; i++) { 2052 hw_config = &cfg->hw_config[i]; 2053 if (hw_config->id != cfg->default_hw_config_id) 2054 continue; 2055 2056 link->dai_fmt = hw_config->fmt & SND_SOC_DAIFMT_FORMAT_MASK; 2057 2058 /* clock gating */ 2059 switch (hw_config->clock_gated) { 2060 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 2061 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 2062 break; 2063 2064 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 2065 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 2066 break; 2067 2068 default: 2069 /* ignore the value */ 2070 break; 2071 } 2072 2073 /* clock signal polarity */ 2074 invert_bclk = hw_config->invert_bclk; 2075 invert_fsync = hw_config->invert_fsync; 2076 if (!invert_bclk && !invert_fsync) 2077 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 2078 else if (!invert_bclk && invert_fsync) 2079 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 2080 else if (invert_bclk && !invert_fsync) 2081 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 2082 else 2083 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 2084 2085 /* clock masters */ 2086 bclk_master = (hw_config->bclk_master == 2087 SND_SOC_TPLG_BCLK_CM); 2088 fsync_master = (hw_config->fsync_master == 2089 SND_SOC_TPLG_FSYNC_CM); 2090 if (bclk_master && fsync_master) 2091 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; 2092 else if (!bclk_master && fsync_master) 2093 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; 2094 else if (bclk_master && !fsync_master) 2095 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; 2096 else 2097 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; 2098 } 2099 } 2100 2101 /** 2102 * link_new_ver - Create a new physical link config from the old 2103 * version of source. 2104 * @tplg: topology context 2105 * @src: old version of phyical link config as a source 2106 * @link: latest version of physical link config created from the source 2107 * 2108 * Support from vesion 4. User need free the returned link config manually. 2109 */ 2110 static int link_new_ver(struct soc_tplg *tplg, 2111 struct snd_soc_tplg_link_config *src, 2112 struct snd_soc_tplg_link_config **link) 2113 { 2114 struct snd_soc_tplg_link_config *dest; 2115 struct snd_soc_tplg_link_config_v4 *src_v4; 2116 int i; 2117 2118 *link = NULL; 2119 2120 if (src->size != sizeof(struct snd_soc_tplg_link_config_v4)) { 2121 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2122 return -EINVAL; 2123 } 2124 2125 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2126 2127 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2128 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2129 if (!dest) 2130 return -ENOMEM; 2131 2132 dest->size = sizeof(*dest); 2133 dest->id = src_v4->id; 2134 dest->num_streams = src_v4->num_streams; 2135 for (i = 0; i < dest->num_streams; i++) 2136 memcpy(&dest->stream[i], &src_v4->stream[i], 2137 sizeof(struct snd_soc_tplg_stream)); 2138 2139 *link = dest; 2140 return 0; 2141 } 2142 2143 /* Find and configure an existing physical DAI link */ 2144 static int soc_tplg_link_config(struct soc_tplg *tplg, 2145 struct snd_soc_tplg_link_config *cfg) 2146 { 2147 struct snd_soc_dai_link *link; 2148 const char *name, *stream_name; 2149 size_t len; 2150 int ret; 2151 2152 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2153 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2154 return -EINVAL; 2155 else if (len) 2156 name = cfg->name; 2157 else 2158 name = NULL; 2159 2160 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2161 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2162 return -EINVAL; 2163 else if (len) 2164 stream_name = cfg->stream_name; 2165 else 2166 stream_name = NULL; 2167 2168 link = snd_soc_find_dai_link(tplg->comp->card, cfg->id, 2169 name, stream_name); 2170 if (!link) { 2171 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2172 name, cfg->id); 2173 return -EINVAL; 2174 } 2175 2176 /* hw format */ 2177 if (cfg->num_hw_configs) 2178 set_link_hw_format(link, cfg); 2179 2180 /* flags */ 2181 if (cfg->flag_mask) 2182 set_link_flags(link, cfg->flag_mask, cfg->flags); 2183 2184 /* pass control to component driver for optional further init */ 2185 ret = soc_tplg_dai_link_load(tplg, link, cfg); 2186 if (ret < 0) { 2187 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2188 return ret; 2189 } 2190 2191 /* for unloading it in snd_soc_tplg_component_remove */ 2192 link->dobj.index = tplg->index; 2193 link->dobj.ops = tplg->ops; 2194 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 2195 list_add(&link->dobj.list, &tplg->comp->dobj_list); 2196 2197 return 0; 2198 } 2199 2200 2201 /* Load physical link config elements from the topology context */ 2202 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2203 struct snd_soc_tplg_hdr *hdr) 2204 { 2205 struct snd_soc_tplg_link_config *link, *_link; 2206 int count = hdr->count; 2207 int i, ret; 2208 bool abi_match; 2209 2210 if (tplg->pass != SOC_TPLG_PASS_LINK) { 2211 tplg->pos += hdr->size + hdr->payload_size; 2212 return 0; 2213 }; 2214 2215 /* check the element size and count */ 2216 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2217 if (link->size > sizeof(struct snd_soc_tplg_link_config) 2218 || link->size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2219 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2220 link->size); 2221 return -EINVAL; 2222 } 2223 2224 if (soc_tplg_check_elem_count(tplg, 2225 link->size, count, 2226 hdr->payload_size, "physical link config")) { 2227 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2228 count); 2229 return -EINVAL; 2230 } 2231 2232 /* config physical DAI links */ 2233 for (i = 0; i < count; i++) { 2234 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2235 if (link->size == sizeof(*link)) { 2236 abi_match = true; 2237 _link = link; 2238 } else { 2239 abi_match = false; 2240 ret = link_new_ver(tplg, link, &_link); 2241 if (ret < 0) 2242 return ret; 2243 } 2244 2245 ret = soc_tplg_link_config(tplg, _link); 2246 if (ret < 0) 2247 return ret; 2248 2249 /* offset by version-specific struct size and 2250 * real priv data size 2251 */ 2252 tplg->pos += link->size + _link->priv.size; 2253 2254 if (!abi_match) 2255 kfree(_link); /* free the duplicated one */ 2256 } 2257 2258 return 0; 2259 } 2260 2261 /** 2262 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2263 * @tplg: topology context 2264 * @d: physical DAI configs. 2265 * 2266 * The physical dai should already be registered by the platform driver. 2267 * The platform driver should specify the DAI name and ID for matching. 2268 */ 2269 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2270 struct snd_soc_tplg_dai *d) 2271 { 2272 struct snd_soc_dai_link_component dai_component = {0}; 2273 struct snd_soc_dai *dai; 2274 struct snd_soc_dai_driver *dai_drv; 2275 struct snd_soc_pcm_stream *stream; 2276 struct snd_soc_tplg_stream_caps *caps; 2277 int ret; 2278 2279 dai_component.dai_name = d->dai_name; 2280 dai = snd_soc_find_dai(&dai_component); 2281 if (!dai) { 2282 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2283 d->dai_name); 2284 return -EINVAL; 2285 } 2286 2287 if (d->dai_id != dai->id) { 2288 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2289 d->dai_name); 2290 return -EINVAL; 2291 } 2292 2293 dai_drv = dai->driver; 2294 if (!dai_drv) 2295 return -EINVAL; 2296 2297 if (d->playback) { 2298 stream = &dai_drv->playback; 2299 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2300 set_stream_info(stream, caps); 2301 } 2302 2303 if (d->capture) { 2304 stream = &dai_drv->capture; 2305 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2306 set_stream_info(stream, caps); 2307 } 2308 2309 if (d->flag_mask) 2310 set_dai_flags(dai_drv, d->flag_mask, d->flags); 2311 2312 /* pass control to component driver for optional further init */ 2313 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2314 if (ret < 0) { 2315 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 2316 return ret; 2317 } 2318 2319 return 0; 2320 } 2321 2322 /* load physical DAI elements */ 2323 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2324 struct snd_soc_tplg_hdr *hdr) 2325 { 2326 struct snd_soc_tplg_dai *dai; 2327 int count = hdr->count; 2328 int i; 2329 2330 if (tplg->pass != SOC_TPLG_PASS_BE_DAI) 2331 return 0; 2332 2333 /* config the existing BE DAIs */ 2334 for (i = 0; i < count; i++) { 2335 dai = (struct snd_soc_tplg_dai *)tplg->pos; 2336 if (dai->size != sizeof(*dai)) { 2337 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2338 return -EINVAL; 2339 } 2340 2341 soc_tplg_dai_config(tplg, dai); 2342 tplg->pos += (sizeof(*dai) + dai->priv.size); 2343 } 2344 2345 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2346 return 0; 2347 } 2348 2349 /** 2350 * manifest_new_ver - Create a new version of manifest from the old version 2351 * of source. 2352 * @tplg: topology context 2353 * @src: old version of manifest as a source 2354 * @manifest: latest version of manifest created from the source 2355 * 2356 * Support from vesion 4. Users need free the returned manifest manually. 2357 */ 2358 static int manifest_new_ver(struct soc_tplg *tplg, 2359 struct snd_soc_tplg_manifest *src, 2360 struct snd_soc_tplg_manifest **manifest) 2361 { 2362 struct snd_soc_tplg_manifest *dest; 2363 struct snd_soc_tplg_manifest_v4 *src_v4; 2364 2365 *manifest = NULL; 2366 2367 if (src->size != sizeof(*src_v4)) { 2368 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", 2369 src->size); 2370 if (src->size) 2371 return -EINVAL; 2372 src->size = sizeof(*src_v4); 2373 } 2374 2375 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2376 2377 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2378 dest = kzalloc(sizeof(*dest) + src_v4->priv.size, GFP_KERNEL); 2379 if (!dest) 2380 return -ENOMEM; 2381 2382 dest->size = sizeof(*dest); /* size of latest abi version */ 2383 dest->control_elems = src_v4->control_elems; 2384 dest->widget_elems = src_v4->widget_elems; 2385 dest->graph_elems = src_v4->graph_elems; 2386 dest->pcm_elems = src_v4->pcm_elems; 2387 dest->dai_link_elems = src_v4->dai_link_elems; 2388 dest->priv.size = src_v4->priv.size; 2389 if (dest->priv.size) 2390 memcpy(dest->priv.data, src_v4->priv.data, 2391 src_v4->priv.size); 2392 2393 *manifest = dest; 2394 return 0; 2395 } 2396 2397 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2398 struct snd_soc_tplg_hdr *hdr) 2399 { 2400 struct snd_soc_tplg_manifest *manifest, *_manifest; 2401 bool abi_match; 2402 int err; 2403 2404 if (tplg->pass != SOC_TPLG_PASS_MANIFEST) 2405 return 0; 2406 2407 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2408 2409 /* check ABI version by size, create a new manifest if abi not match */ 2410 if (manifest->size == sizeof(*manifest)) { 2411 abi_match = true; 2412 _manifest = manifest; 2413 } else { 2414 abi_match = false; 2415 err = manifest_new_ver(tplg, manifest, &_manifest); 2416 if (err < 0) 2417 return err; 2418 } 2419 2420 /* pass control to component driver for optional further init */ 2421 if (tplg->comp && tplg->ops && tplg->ops->manifest) 2422 return tplg->ops->manifest(tplg->comp, tplg->index, _manifest); 2423 2424 if (!abi_match) /* free the duplicated one */ 2425 kfree(_manifest); 2426 2427 return 0; 2428 } 2429 2430 /* validate header magic, size and type */ 2431 static int soc_valid_header(struct soc_tplg *tplg, 2432 struct snd_soc_tplg_hdr *hdr) 2433 { 2434 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2435 return 0; 2436 2437 if (hdr->size != sizeof(*hdr)) { 2438 dev_err(tplg->dev, 2439 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2440 hdr->type, soc_tplg_get_hdr_offset(tplg), 2441 tplg->fw->size); 2442 return -EINVAL; 2443 } 2444 2445 /* big endian firmware objects not supported atm */ 2446 if (hdr->magic == cpu_to_be32(SND_SOC_TPLG_MAGIC)) { 2447 dev_err(tplg->dev, 2448 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2449 tplg->pass, hdr->magic, 2450 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2451 return -EINVAL; 2452 } 2453 2454 if (hdr->magic != SND_SOC_TPLG_MAGIC) { 2455 dev_err(tplg->dev, 2456 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2457 tplg->pass, hdr->magic, 2458 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2459 return -EINVAL; 2460 } 2461 2462 /* Support ABI from version 4 */ 2463 if (hdr->abi > SND_SOC_TPLG_ABI_VERSION 2464 || hdr->abi < SND_SOC_TPLG_ABI_VERSION_MIN) { 2465 dev_err(tplg->dev, 2466 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2467 tplg->pass, hdr->abi, 2468 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2469 tplg->fw->size); 2470 return -EINVAL; 2471 } 2472 2473 if (hdr->payload_size == 0) { 2474 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2475 soc_tplg_get_hdr_offset(tplg)); 2476 return -EINVAL; 2477 } 2478 2479 if (tplg->pass == hdr->type) 2480 dev_dbg(tplg->dev, 2481 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2482 hdr->payload_size, hdr->type, hdr->version, 2483 hdr->vendor_type, tplg->pass); 2484 2485 return 1; 2486 } 2487 2488 /* check header type and call appropriate handler */ 2489 static int soc_tplg_load_header(struct soc_tplg *tplg, 2490 struct snd_soc_tplg_hdr *hdr) 2491 { 2492 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2493 2494 /* check for matching ID */ 2495 if (hdr->index != tplg->req_index && 2496 tplg->req_index != SND_SOC_TPLG_INDEX_ALL) 2497 return 0; 2498 2499 tplg->index = hdr->index; 2500 2501 switch (hdr->type) { 2502 case SND_SOC_TPLG_TYPE_MIXER: 2503 case SND_SOC_TPLG_TYPE_ENUM: 2504 case SND_SOC_TPLG_TYPE_BYTES: 2505 return soc_tplg_kcontrol_elems_load(tplg, hdr); 2506 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2507 return soc_tplg_dapm_graph_elems_load(tplg, hdr); 2508 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2509 return soc_tplg_dapm_widget_elems_load(tplg, hdr); 2510 case SND_SOC_TPLG_TYPE_PCM: 2511 return soc_tplg_pcm_elems_load(tplg, hdr); 2512 case SND_SOC_TPLG_TYPE_DAI: 2513 return soc_tplg_dai_elems_load(tplg, hdr); 2514 case SND_SOC_TPLG_TYPE_DAI_LINK: 2515 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2516 /* physical link configurations */ 2517 return soc_tplg_link_elems_load(tplg, hdr); 2518 case SND_SOC_TPLG_TYPE_MANIFEST: 2519 return soc_tplg_manifest_load(tplg, hdr); 2520 default: 2521 /* bespoke vendor data object */ 2522 return soc_tplg_vendor_load(tplg, hdr); 2523 } 2524 2525 return 0; 2526 } 2527 2528 /* process the topology file headers */ 2529 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2530 { 2531 struct snd_soc_tplg_hdr *hdr; 2532 int ret; 2533 2534 tplg->pass = SOC_TPLG_PASS_START; 2535 2536 /* process the header types from start to end */ 2537 while (tplg->pass <= SOC_TPLG_PASS_END) { 2538 2539 tplg->hdr_pos = tplg->fw->data; 2540 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2541 2542 while (!soc_tplg_is_eof(tplg)) { 2543 2544 /* make sure header is valid before loading */ 2545 ret = soc_valid_header(tplg, hdr); 2546 if (ret < 0) 2547 return ret; 2548 else if (ret == 0) 2549 break; 2550 2551 /* load the header object */ 2552 ret = soc_tplg_load_header(tplg, hdr); 2553 if (ret < 0) 2554 return ret; 2555 2556 /* goto next header */ 2557 tplg->hdr_pos += hdr->payload_size + 2558 sizeof(struct snd_soc_tplg_hdr); 2559 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2560 } 2561 2562 /* next data type pass */ 2563 tplg->pass++; 2564 } 2565 2566 /* signal DAPM we are complete */ 2567 ret = soc_tplg_dapm_complete(tplg); 2568 if (ret < 0) 2569 dev_err(tplg->dev, 2570 "ASoC: failed to initialise DAPM from Firmware\n"); 2571 2572 return ret; 2573 } 2574 2575 static int soc_tplg_load(struct soc_tplg *tplg) 2576 { 2577 int ret; 2578 2579 ret = soc_tplg_process_headers(tplg); 2580 if (ret == 0) 2581 soc_tplg_complete(tplg); 2582 2583 return ret; 2584 } 2585 2586 /* load audio component topology from "firmware" file */ 2587 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2588 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) 2589 { 2590 struct soc_tplg tplg; 2591 int ret; 2592 2593 /* setup parsing context */ 2594 memset(&tplg, 0, sizeof(tplg)); 2595 tplg.fw = fw; 2596 tplg.dev = comp->dev; 2597 tplg.comp = comp; 2598 tplg.ops = ops; 2599 tplg.req_index = id; 2600 tplg.io_ops = ops->io_ops; 2601 tplg.io_ops_count = ops->io_ops_count; 2602 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2603 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2604 2605 ret = soc_tplg_load(&tplg); 2606 /* free the created components if fail to load topology */ 2607 if (ret) 2608 snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL); 2609 2610 return ret; 2611 } 2612 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2613 2614 /* remove this dynamic widget */ 2615 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) 2616 { 2617 /* make sure we are a widget */ 2618 if (w->dobj.type != SND_SOC_DOBJ_WIDGET) 2619 return; 2620 2621 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); 2622 } 2623 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); 2624 2625 /* remove all dynamic widgets from this DAPM context */ 2626 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, 2627 u32 index) 2628 { 2629 struct snd_soc_dapm_widget *w, *next_w; 2630 2631 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { 2632 2633 /* make sure we are a widget with correct context */ 2634 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) 2635 continue; 2636 2637 /* match ID */ 2638 if (w->dobj.index != index && 2639 w->dobj.index != SND_SOC_TPLG_INDEX_ALL) 2640 continue; 2641 /* check and free and dynamic widget kcontrols */ 2642 snd_soc_tplg_widget_remove(w); 2643 snd_soc_dapm_free_widget(w); 2644 } 2645 snd_soc_dapm_reset_cache(dapm); 2646 } 2647 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); 2648 2649 /* remove dynamic controls from the component driver */ 2650 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) 2651 { 2652 struct snd_soc_dobj *dobj, *next_dobj; 2653 int pass = SOC_TPLG_PASS_END; 2654 2655 /* process the header types from end to start */ 2656 while (pass >= SOC_TPLG_PASS_START) { 2657 2658 /* remove mixer controls */ 2659 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2660 list) { 2661 2662 /* match index */ 2663 if (dobj->index != index && 2664 index != SND_SOC_TPLG_INDEX_ALL) 2665 continue; 2666 2667 switch (dobj->type) { 2668 case SND_SOC_DOBJ_MIXER: 2669 remove_mixer(comp, dobj, pass); 2670 break; 2671 case SND_SOC_DOBJ_ENUM: 2672 remove_enum(comp, dobj, pass); 2673 break; 2674 case SND_SOC_DOBJ_BYTES: 2675 remove_bytes(comp, dobj, pass); 2676 break; 2677 case SND_SOC_DOBJ_GRAPH: 2678 remove_route(comp, dobj, pass); 2679 break; 2680 case SND_SOC_DOBJ_WIDGET: 2681 remove_widget(comp, dobj, pass); 2682 break; 2683 case SND_SOC_DOBJ_PCM: 2684 remove_dai(comp, dobj, pass); 2685 break; 2686 case SND_SOC_DOBJ_DAI_LINK: 2687 remove_link(comp, dobj, pass); 2688 break; 2689 case SND_SOC_DOBJ_BACKEND_LINK: 2690 /* 2691 * call link_unload ops if extra 2692 * deinitialization is needed. 2693 */ 2694 remove_backend_link(comp, dobj, pass); 2695 break; 2696 default: 2697 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2698 dobj->type); 2699 break; 2700 } 2701 } 2702 pass--; 2703 } 2704 2705 /* let caller know if FW can be freed when no objects are left */ 2706 return !list_empty(&comp->dobj_list); 2707 } 2708 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2709