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 (sm->dobj.control.kcontrol->tlv.p) 386 p = sm->dobj.control.kcontrol->tlv.p; 387 snd_ctl_remove(card, sm->dobj.control.kcontrol); 388 list_del(&sm->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, se->dobj.control.kcontrol); 408 list_del(&se->dobj.list); 409 410 kfree(se->dobj.control.dvalues); 411 for (i = 0; i < se->items; i++) 412 kfree(se->dobj.control.dtexts[i]); 413 kfree(se); 414 } 415 416 /* remove a byte kcontrol */ 417 static void remove_bytes(struct snd_soc_component *comp, 418 struct snd_soc_dobj *dobj, int pass) 419 { 420 struct snd_card *card = comp->card->snd_card; 421 struct soc_bytes_ext *sb = 422 container_of(dobj, struct soc_bytes_ext, dobj); 423 424 if (pass != SOC_TPLG_PASS_MIXER) 425 return; 426 427 if (dobj->ops && dobj->ops->control_unload) 428 dobj->ops->control_unload(comp, dobj); 429 430 snd_ctl_remove(card, sb->dobj.control.kcontrol); 431 list_del(&sb->dobj.list); 432 kfree(sb); 433 } 434 435 /* remove a widget and it's kcontrols - routes must be removed first */ 436 static void remove_widget(struct snd_soc_component *comp, 437 struct snd_soc_dobj *dobj, int pass) 438 { 439 struct snd_card *card = comp->card->snd_card; 440 struct snd_soc_dapm_widget *w = 441 container_of(dobj, struct snd_soc_dapm_widget, dobj); 442 int i; 443 444 if (pass != SOC_TPLG_PASS_WIDGET) 445 return; 446 447 if (dobj->ops && dobj->ops->widget_unload) 448 dobj->ops->widget_unload(comp, dobj); 449 450 if (!w->kcontrols) 451 goto free_news; 452 453 /* 454 * Dynamic Widgets either have 1..N enum kcontrols or mixers. 455 * The enum may either have an array of values or strings. 456 */ 457 if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) { 458 /* enumerated widget mixer */ 459 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { 460 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 461 struct soc_enum *se = 462 (struct soc_enum *)kcontrol->private_value; 463 int j; 464 465 snd_ctl_remove(card, kcontrol); 466 467 kfree(se->dobj.control.dvalues); 468 for (j = 0; j < se->items; j++) 469 kfree(se->dobj.control.dtexts[j]); 470 471 kfree(se); 472 kfree(w->kcontrol_news[i].name); 473 } 474 } else { 475 /* volume mixer or bytes controls */ 476 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { 477 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 478 479 if (dobj->widget.kcontrol_type 480 == SND_SOC_TPLG_TYPE_MIXER) 481 kfree(kcontrol->tlv.p); 482 483 /* Private value is used as struct soc_mixer_control 484 * for volume mixers or soc_bytes_ext for bytes 485 * controls. 486 */ 487 kfree((void *)kcontrol->private_value); 488 snd_ctl_remove(card, kcontrol); 489 kfree(w->kcontrol_news[i].name); 490 } 491 } 492 493 free_news: 494 kfree(w->kcontrol_news); 495 496 /* widget w is freed by soc-dapm.c */ 497 } 498 499 /* remove DAI configurations */ 500 static void remove_dai(struct snd_soc_component *comp, 501 struct snd_soc_dobj *dobj, int pass) 502 { 503 struct snd_soc_dai_driver *dai_drv = 504 container_of(dobj, struct snd_soc_dai_driver, dobj); 505 struct snd_soc_dai *dai; 506 507 if (pass != SOC_TPLG_PASS_PCM_DAI) 508 return; 509 510 if (dobj->ops && dobj->ops->dai_unload) 511 dobj->ops->dai_unload(comp, dobj); 512 513 list_for_each_entry(dai, &comp->dai_list, list) 514 if (dai->driver == dai_drv) 515 dai->driver = NULL; 516 517 kfree(dai_drv->name); 518 list_del(&dobj->list); 519 kfree(dai_drv); 520 } 521 522 /* remove link configurations */ 523 static void remove_link(struct snd_soc_component *comp, 524 struct snd_soc_dobj *dobj, int pass) 525 { 526 struct snd_soc_dai_link *link = 527 container_of(dobj, struct snd_soc_dai_link, dobj); 528 529 if (pass != SOC_TPLG_PASS_PCM_DAI) 530 return; 531 532 if (dobj->ops && dobj->ops->link_unload) 533 dobj->ops->link_unload(comp, dobj); 534 535 kfree(link->name); 536 kfree(link->stream_name); 537 kfree(link->cpu_dai_name); 538 539 list_del(&dobj->list); 540 snd_soc_remove_dai_link(comp->card, link); 541 kfree(link); 542 } 543 544 /* bind a kcontrol to it's IO handlers */ 545 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr, 546 struct snd_kcontrol_new *k, 547 const struct soc_tplg *tplg) 548 { 549 const struct snd_soc_tplg_kcontrol_ops *ops; 550 const struct snd_soc_tplg_bytes_ext_ops *ext_ops; 551 int num_ops, i; 552 553 if (hdr->ops.info == SND_SOC_TPLG_CTL_BYTES 554 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER 555 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE 556 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 557 struct soc_bytes_ext *sbe; 558 struct snd_soc_tplg_bytes_control *be; 559 560 sbe = (struct soc_bytes_ext *)k->private_value; 561 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr); 562 563 /* TLV bytes controls need standard kcontrol info handler, 564 * TLV callback and extended put/get handlers. 565 */ 566 k->info = snd_soc_bytes_info_ext; 567 k->tlv.c = snd_soc_bytes_tlv_callback; 568 569 ext_ops = tplg->bytes_ext_ops; 570 num_ops = tplg->bytes_ext_ops_count; 571 for (i = 0; i < num_ops; i++) { 572 if (!sbe->put && ext_ops[i].id == be->ext_ops.put) 573 sbe->put = ext_ops[i].put; 574 if (!sbe->get && ext_ops[i].id == be->ext_ops.get) 575 sbe->get = ext_ops[i].get; 576 } 577 578 if (sbe->put && sbe->get) 579 return 0; 580 else 581 return -EINVAL; 582 } 583 584 /* try and map vendor specific kcontrol handlers first */ 585 ops = tplg->io_ops; 586 num_ops = tplg->io_ops_count; 587 for (i = 0; i < num_ops; i++) { 588 589 if (k->put == NULL && ops[i].id == hdr->ops.put) 590 k->put = ops[i].put; 591 if (k->get == NULL && ops[i].id == hdr->ops.get) 592 k->get = ops[i].get; 593 if (k->info == NULL && ops[i].id == hdr->ops.info) 594 k->info = ops[i].info; 595 } 596 597 /* vendor specific handlers found ? */ 598 if (k->put && k->get && k->info) 599 return 0; 600 601 /* none found so try standard kcontrol handlers */ 602 ops = io_ops; 603 num_ops = ARRAY_SIZE(io_ops); 604 for (i = 0; i < num_ops; i++) { 605 606 if (k->put == NULL && ops[i].id == hdr->ops.put) 607 k->put = ops[i].put; 608 if (k->get == NULL && ops[i].id == hdr->ops.get) 609 k->get = ops[i].get; 610 if (k->info == NULL && ops[i].id == hdr->ops.info) 611 k->info = ops[i].info; 612 } 613 614 /* standard handlers found ? */ 615 if (k->put && k->get && k->info) 616 return 0; 617 618 /* nothing to bind */ 619 return -EINVAL; 620 } 621 622 /* bind a widgets to it's evnt handlers */ 623 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w, 624 const struct snd_soc_tplg_widget_events *events, 625 int num_events, u16 event_type) 626 { 627 int i; 628 629 w->event = NULL; 630 631 for (i = 0; i < num_events; i++) { 632 if (event_type == events[i].type) { 633 634 /* found - so assign event */ 635 w->event = events[i].event_handler; 636 return 0; 637 } 638 } 639 640 /* not found */ 641 return -EINVAL; 642 } 643 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event); 644 645 /* optionally pass new dynamic kcontrol to component driver. */ 646 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg, 647 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr) 648 { 649 if (tplg->comp && tplg->ops && tplg->ops->control_load) 650 return tplg->ops->control_load(tplg->comp, tplg->index, k, 651 hdr); 652 653 return 0; 654 } 655 656 657 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg, 658 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale) 659 { 660 unsigned int item_len = 2 * sizeof(unsigned int); 661 unsigned int *p; 662 663 p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL); 664 if (!p) 665 return -ENOMEM; 666 667 p[0] = SNDRV_CTL_TLVT_DB_SCALE; 668 p[1] = item_len; 669 p[2] = scale->min; 670 p[3] = (scale->step & TLV_DB_SCALE_MASK) 671 | (scale->mute ? TLV_DB_SCALE_MUTE : 0); 672 673 kc->tlv.p = (void *)p; 674 return 0; 675 } 676 677 static int soc_tplg_create_tlv(struct soc_tplg *tplg, 678 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc) 679 { 680 struct snd_soc_tplg_ctl_tlv *tplg_tlv; 681 682 if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)) 683 return 0; 684 685 if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) { 686 tplg_tlv = &tc->tlv; 687 switch (tplg_tlv->type) { 688 case SNDRV_CTL_TLVT_DB_SCALE: 689 return soc_tplg_create_tlv_db_scale(tplg, kc, 690 &tplg_tlv->scale); 691 692 /* TODO: add support for other TLV types */ 693 default: 694 dev_dbg(tplg->dev, "Unsupported TLV type %d\n", 695 tplg_tlv->type); 696 return -EINVAL; 697 } 698 } 699 700 return 0; 701 } 702 703 static inline void soc_tplg_free_tlv(struct soc_tplg *tplg, 704 struct snd_kcontrol_new *kc) 705 { 706 kfree(kc->tlv.p); 707 } 708 709 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count, 710 size_t size) 711 { 712 struct snd_soc_tplg_bytes_control *be; 713 struct soc_bytes_ext *sbe; 714 struct snd_kcontrol_new kc; 715 int i, err; 716 717 if (soc_tplg_check_elem_count(tplg, 718 sizeof(struct snd_soc_tplg_bytes_control), count, 719 size, "mixer bytes")) { 720 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n", 721 count); 722 return -EINVAL; 723 } 724 725 for (i = 0; i < count; i++) { 726 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 727 728 /* validate kcontrol */ 729 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 730 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 731 return -EINVAL; 732 733 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 734 if (sbe == NULL) 735 return -ENOMEM; 736 737 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 738 be->priv.size); 739 740 dev_dbg(tplg->dev, 741 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 742 be->hdr.name, be->hdr.access); 743 744 memset(&kc, 0, sizeof(kc)); 745 kc.name = be->hdr.name; 746 kc.private_value = (long)sbe; 747 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 748 kc.access = be->hdr.access; 749 750 sbe->max = be->max; 751 sbe->dobj.type = SND_SOC_DOBJ_BYTES; 752 sbe->dobj.ops = tplg->ops; 753 INIT_LIST_HEAD(&sbe->dobj.list); 754 755 /* map io handlers */ 756 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg); 757 if (err) { 758 soc_control_err(tplg, &be->hdr, be->hdr.name); 759 kfree(sbe); 760 continue; 761 } 762 763 /* pass control to driver for optional further init */ 764 err = soc_tplg_init_kcontrol(tplg, &kc, 765 (struct snd_soc_tplg_ctl_hdr *)be); 766 if (err < 0) { 767 dev_err(tplg->dev, "ASoC: failed to init %s\n", 768 be->hdr.name); 769 kfree(sbe); 770 continue; 771 } 772 773 /* register control here */ 774 err = soc_tplg_add_kcontrol(tplg, &kc, 775 &sbe->dobj.control.kcontrol); 776 if (err < 0) { 777 dev_err(tplg->dev, "ASoC: failed to add %s\n", 778 be->hdr.name); 779 kfree(sbe); 780 continue; 781 } 782 783 list_add(&sbe->dobj.list, &tplg->comp->dobj_list); 784 } 785 return 0; 786 787 } 788 789 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count, 790 size_t size) 791 { 792 struct snd_soc_tplg_mixer_control *mc; 793 struct soc_mixer_control *sm; 794 struct snd_kcontrol_new kc; 795 int i, err; 796 797 if (soc_tplg_check_elem_count(tplg, 798 sizeof(struct snd_soc_tplg_mixer_control), 799 count, size, "mixers")) { 800 801 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n", 802 count); 803 return -EINVAL; 804 } 805 806 for (i = 0; i < count; i++) { 807 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 808 809 /* validate kcontrol */ 810 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 811 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 812 return -EINVAL; 813 814 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 815 if (sm == NULL) 816 return -ENOMEM; 817 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 818 mc->priv.size); 819 820 dev_dbg(tplg->dev, 821 "ASoC: adding mixer kcontrol %s with access 0x%x\n", 822 mc->hdr.name, mc->hdr.access); 823 824 memset(&kc, 0, sizeof(kc)); 825 kc.name = mc->hdr.name; 826 kc.private_value = (long)sm; 827 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 828 kc.access = mc->hdr.access; 829 830 /* we only support FL/FR channel mapping atm */ 831 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 832 SNDRV_CHMAP_FL); 833 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 834 SNDRV_CHMAP_FR); 835 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 836 SNDRV_CHMAP_FL); 837 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 838 SNDRV_CHMAP_FR); 839 840 sm->max = mc->max; 841 sm->min = mc->min; 842 sm->invert = mc->invert; 843 sm->platform_max = mc->platform_max; 844 sm->dobj.index = tplg->index; 845 sm->dobj.ops = tplg->ops; 846 sm->dobj.type = SND_SOC_DOBJ_MIXER; 847 INIT_LIST_HEAD(&sm->dobj.list); 848 849 /* map io handlers */ 850 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg); 851 if (err) { 852 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 853 kfree(sm); 854 continue; 855 } 856 857 /* pass control to driver for optional further init */ 858 err = soc_tplg_init_kcontrol(tplg, &kc, 859 (struct snd_soc_tplg_ctl_hdr *) mc); 860 if (err < 0) { 861 dev_err(tplg->dev, "ASoC: failed to init %s\n", 862 mc->hdr.name); 863 kfree(sm); 864 continue; 865 } 866 867 /* create any TLV data */ 868 soc_tplg_create_tlv(tplg, &kc, &mc->hdr); 869 870 /* register control here */ 871 err = soc_tplg_add_kcontrol(tplg, &kc, 872 &sm->dobj.control.kcontrol); 873 if (err < 0) { 874 dev_err(tplg->dev, "ASoC: failed to add %s\n", 875 mc->hdr.name); 876 soc_tplg_free_tlv(tplg, &kc); 877 kfree(sm); 878 continue; 879 } 880 881 list_add(&sm->dobj.list, &tplg->comp->dobj_list); 882 } 883 884 return 0; 885 } 886 887 static int soc_tplg_denum_create_texts(struct soc_enum *se, 888 struct snd_soc_tplg_enum_control *ec) 889 { 890 int i, ret; 891 892 se->dobj.control.dtexts = 893 kcalloc(ec->items, sizeof(char *), GFP_KERNEL); 894 if (se->dobj.control.dtexts == NULL) 895 return -ENOMEM; 896 897 for (i = 0; i < ec->items; i++) { 898 899 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 900 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 901 ret = -EINVAL; 902 goto err; 903 } 904 905 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL); 906 if (!se->dobj.control.dtexts[i]) { 907 ret = -ENOMEM; 908 goto err; 909 } 910 } 911 912 se->texts = (const char * const *)se->dobj.control.dtexts; 913 return 0; 914 915 err: 916 for (--i; i >= 0; i--) 917 kfree(se->dobj.control.dtexts[i]); 918 kfree(se->dobj.control.dtexts); 919 return ret; 920 } 921 922 static int soc_tplg_denum_create_values(struct soc_enum *se, 923 struct snd_soc_tplg_enum_control *ec) 924 { 925 if (ec->items > sizeof(*ec->values)) 926 return -EINVAL; 927 928 se->dobj.control.dvalues = kmemdup(ec->values, 929 ec->items * sizeof(u32), 930 GFP_KERNEL); 931 if (!se->dobj.control.dvalues) 932 return -ENOMEM; 933 934 return 0; 935 } 936 937 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count, 938 size_t size) 939 { 940 struct snd_soc_tplg_enum_control *ec; 941 struct soc_enum *se; 942 struct snd_kcontrol_new kc; 943 int i, ret, err; 944 945 if (soc_tplg_check_elem_count(tplg, 946 sizeof(struct snd_soc_tplg_enum_control), 947 count, size, "enums")) { 948 949 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n", 950 count); 951 return -EINVAL; 952 } 953 954 for (i = 0; i < count; i++) { 955 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 956 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 957 ec->priv.size); 958 959 /* validate kcontrol */ 960 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 961 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 962 return -EINVAL; 963 964 se = kzalloc((sizeof(*se)), GFP_KERNEL); 965 if (se == NULL) 966 return -ENOMEM; 967 968 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", 969 ec->hdr.name, ec->items); 970 971 memset(&kc, 0, sizeof(kc)); 972 kc.name = ec->hdr.name; 973 kc.private_value = (long)se; 974 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 975 kc.access = ec->hdr.access; 976 977 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 978 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 979 SNDRV_CHMAP_FL); 980 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 981 SNDRV_CHMAP_FL); 982 983 se->items = ec->items; 984 se->mask = ec->mask; 985 se->dobj.index = tplg->index; 986 se->dobj.type = SND_SOC_DOBJ_ENUM; 987 se->dobj.ops = tplg->ops; 988 INIT_LIST_HEAD(&se->dobj.list); 989 990 switch (ec->hdr.ops.info) { 991 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 992 case SND_SOC_TPLG_CTL_ENUM_VALUE: 993 err = soc_tplg_denum_create_values(se, ec); 994 if (err < 0) { 995 dev_err(tplg->dev, 996 "ASoC: could not create values for %s\n", 997 ec->hdr.name); 998 kfree(se); 999 continue; 1000 } 1001 /* fall through */ 1002 case SND_SOC_TPLG_CTL_ENUM: 1003 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1004 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1005 err = soc_tplg_denum_create_texts(se, ec); 1006 if (err < 0) { 1007 dev_err(tplg->dev, 1008 "ASoC: could not create texts for %s\n", 1009 ec->hdr.name); 1010 kfree(se); 1011 continue; 1012 } 1013 break; 1014 default: 1015 dev_err(tplg->dev, 1016 "ASoC: invalid enum control type %d for %s\n", 1017 ec->hdr.ops.info, ec->hdr.name); 1018 kfree(se); 1019 continue; 1020 } 1021 1022 /* map io handlers */ 1023 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg); 1024 if (err) { 1025 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1026 kfree(se); 1027 continue; 1028 } 1029 1030 /* pass control to driver for optional further init */ 1031 err = soc_tplg_init_kcontrol(tplg, &kc, 1032 (struct snd_soc_tplg_ctl_hdr *) ec); 1033 if (err < 0) { 1034 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1035 ec->hdr.name); 1036 kfree(se); 1037 continue; 1038 } 1039 1040 /* register control here */ 1041 ret = soc_tplg_add_kcontrol(tplg, 1042 &kc, &se->dobj.control.kcontrol); 1043 if (ret < 0) { 1044 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n", 1045 ec->hdr.name); 1046 kfree(se); 1047 continue; 1048 } 1049 1050 list_add(&se->dobj.list, &tplg->comp->dobj_list); 1051 } 1052 1053 return 0; 1054 } 1055 1056 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 1057 struct snd_soc_tplg_hdr *hdr) 1058 { 1059 struct snd_soc_tplg_ctl_hdr *control_hdr; 1060 int i; 1061 1062 if (tplg->pass != SOC_TPLG_PASS_MIXER) { 1063 tplg->pos += hdr->size + hdr->payload_size; 1064 return 0; 1065 } 1066 1067 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 1068 soc_tplg_get_offset(tplg)); 1069 1070 for (i = 0; i < hdr->count; i++) { 1071 1072 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1073 1074 if (control_hdr->size != sizeof(*control_hdr)) { 1075 dev_err(tplg->dev, "ASoC: invalid control size\n"); 1076 return -EINVAL; 1077 } 1078 1079 switch (control_hdr->ops.info) { 1080 case SND_SOC_TPLG_CTL_VOLSW: 1081 case SND_SOC_TPLG_CTL_STROBE: 1082 case SND_SOC_TPLG_CTL_VOLSW_SX: 1083 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1084 case SND_SOC_TPLG_CTL_RANGE: 1085 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1086 case SND_SOC_TPLG_DAPM_CTL_PIN: 1087 soc_tplg_dmixer_create(tplg, 1, hdr->payload_size); 1088 break; 1089 case SND_SOC_TPLG_CTL_ENUM: 1090 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1091 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1092 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1093 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1094 soc_tplg_denum_create(tplg, 1, hdr->payload_size); 1095 break; 1096 case SND_SOC_TPLG_CTL_BYTES: 1097 soc_tplg_dbytes_create(tplg, 1, hdr->payload_size); 1098 break; 1099 default: 1100 soc_bind_err(tplg, control_hdr, i); 1101 return -EINVAL; 1102 } 1103 } 1104 1105 return 0; 1106 } 1107 1108 /* optionally pass new dynamic kcontrol to component driver. */ 1109 static int soc_tplg_add_route(struct soc_tplg *tplg, 1110 struct snd_soc_dapm_route *route) 1111 { 1112 if (tplg->comp && tplg->ops && tplg->ops->dapm_route_load) 1113 return tplg->ops->dapm_route_load(tplg->comp, tplg->index, 1114 route); 1115 1116 return 0; 1117 } 1118 1119 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1120 struct snd_soc_tplg_hdr *hdr) 1121 { 1122 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1123 struct snd_soc_dapm_route route; 1124 struct snd_soc_tplg_dapm_graph_elem *elem; 1125 int count = hdr->count, i; 1126 1127 if (tplg->pass != SOC_TPLG_PASS_GRAPH) { 1128 tplg->pos += hdr->size + hdr->payload_size; 1129 return 0; 1130 } 1131 1132 if (soc_tplg_check_elem_count(tplg, 1133 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1134 count, hdr->payload_size, "graph")) { 1135 1136 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n", 1137 count); 1138 return -EINVAL; 1139 } 1140 1141 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, 1142 hdr->index); 1143 1144 for (i = 0; i < count; i++) { 1145 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1146 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1147 1148 /* validate routes */ 1149 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1150 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1151 return -EINVAL; 1152 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1153 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1154 return -EINVAL; 1155 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1156 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1157 return -EINVAL; 1158 1159 route.source = elem->source; 1160 route.sink = elem->sink; 1161 route.connected = NULL; /* set to NULL atm for tplg users */ 1162 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0) 1163 route.control = NULL; 1164 else 1165 route.control = elem->control; 1166 1167 soc_tplg_add_route(tplg, &route); 1168 1169 /* add route, but keep going if some fail */ 1170 snd_soc_dapm_add_routes(dapm, &route, 1); 1171 } 1172 1173 return 0; 1174 } 1175 1176 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create( 1177 struct soc_tplg *tplg, int num_kcontrols) 1178 { 1179 struct snd_kcontrol_new *kc; 1180 struct soc_mixer_control *sm; 1181 struct snd_soc_tplg_mixer_control *mc; 1182 int i, err; 1183 1184 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1185 if (kc == NULL) 1186 return NULL; 1187 1188 for (i = 0; i < num_kcontrols; i++) { 1189 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1190 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 1191 if (sm == NULL) 1192 goto err; 1193 1194 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 1195 mc->priv.size); 1196 1197 /* validate kcontrol */ 1198 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1199 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1200 goto err_str; 1201 1202 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n", 1203 mc->hdr.name, i); 1204 1205 kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL); 1206 if (kc[i].name == NULL) 1207 goto err_str; 1208 kc[i].private_value = (long)sm; 1209 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1210 kc[i].access = mc->hdr.access; 1211 1212 /* we only support FL/FR channel mapping atm */ 1213 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 1214 SNDRV_CHMAP_FL); 1215 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 1216 SNDRV_CHMAP_FR); 1217 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 1218 SNDRV_CHMAP_FL); 1219 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 1220 SNDRV_CHMAP_FR); 1221 1222 sm->max = mc->max; 1223 sm->min = mc->min; 1224 sm->invert = mc->invert; 1225 sm->platform_max = mc->platform_max; 1226 sm->dobj.index = tplg->index; 1227 INIT_LIST_HEAD(&sm->dobj.list); 1228 1229 /* map io handlers */ 1230 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg); 1231 if (err) { 1232 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1233 kfree(sm); 1234 continue; 1235 } 1236 1237 /* pass control to driver for optional further init */ 1238 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1239 (struct snd_soc_tplg_ctl_hdr *)mc); 1240 if (err < 0) { 1241 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1242 mc->hdr.name); 1243 kfree(sm); 1244 continue; 1245 } 1246 1247 /* create any TLV data */ 1248 soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr); 1249 } 1250 return kc; 1251 1252 err_str: 1253 kfree(sm); 1254 err: 1255 for (--i; i >= 0; i--) { 1256 kfree((void *)kc[i].private_value); 1257 kfree(kc[i].name); 1258 } 1259 kfree(kc); 1260 return NULL; 1261 } 1262 1263 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create( 1264 struct soc_tplg *tplg, int num_kcontrols) 1265 { 1266 struct snd_kcontrol_new *kc; 1267 struct snd_soc_tplg_enum_control *ec; 1268 struct soc_enum *se; 1269 int i, j, err; 1270 1271 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1272 if (kc == NULL) 1273 return NULL; 1274 1275 for (i = 0; i < num_kcontrols; i++) { 1276 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1277 /* validate kcontrol */ 1278 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1279 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1280 goto err; 1281 1282 se = kzalloc(sizeof(*se), GFP_KERNEL); 1283 if (se == NULL) 1284 goto err; 1285 1286 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1287 ec->hdr.name); 1288 1289 kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL); 1290 if (kc[i].name == NULL) { 1291 kfree(se); 1292 goto err_se; 1293 } 1294 kc[i].private_value = (long)se; 1295 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1296 kc[i].access = ec->hdr.access; 1297 1298 /* we only support FL/FR channel mapping atm */ 1299 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1300 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1301 SNDRV_CHMAP_FL); 1302 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1303 SNDRV_CHMAP_FR); 1304 1305 se->items = ec->items; 1306 se->mask = ec->mask; 1307 se->dobj.index = tplg->index; 1308 1309 switch (ec->hdr.ops.info) { 1310 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1311 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1312 err = soc_tplg_denum_create_values(se, ec); 1313 if (err < 0) { 1314 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1315 ec->hdr.name); 1316 goto err_se; 1317 } 1318 /* fall through */ 1319 case SND_SOC_TPLG_CTL_ENUM: 1320 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1321 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1322 err = soc_tplg_denum_create_texts(se, ec); 1323 if (err < 0) { 1324 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1325 ec->hdr.name); 1326 goto err_se; 1327 } 1328 break; 1329 default: 1330 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1331 ec->hdr.ops.info, ec->hdr.name); 1332 goto err_se; 1333 } 1334 1335 /* map io handlers */ 1336 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg); 1337 if (err) { 1338 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1339 goto err_se; 1340 } 1341 1342 /* pass control to driver for optional further init */ 1343 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1344 (struct snd_soc_tplg_ctl_hdr *)ec); 1345 if (err < 0) { 1346 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1347 ec->hdr.name); 1348 goto err_se; 1349 } 1350 1351 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1352 ec->priv.size); 1353 } 1354 1355 return kc; 1356 1357 err_se: 1358 for (; i >= 0; i--) { 1359 /* free values and texts */ 1360 se = (struct soc_enum *)kc[i].private_value; 1361 if (!se) 1362 continue; 1363 1364 kfree(se->dobj.control.dvalues); 1365 for (j = 0; j < ec->items; j++) 1366 kfree(se->dobj.control.dtexts[j]); 1367 1368 kfree(se); 1369 kfree(kc[i].name); 1370 } 1371 err: 1372 kfree(kc); 1373 1374 return NULL; 1375 } 1376 1377 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create( 1378 struct soc_tplg *tplg, int count) 1379 { 1380 struct snd_soc_tplg_bytes_control *be; 1381 struct soc_bytes_ext *sbe; 1382 struct snd_kcontrol_new *kc; 1383 int i, err; 1384 1385 kc = kcalloc(count, sizeof(*kc), GFP_KERNEL); 1386 if (!kc) 1387 return NULL; 1388 1389 for (i = 0; i < count; i++) { 1390 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1391 1392 /* validate kcontrol */ 1393 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1394 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1395 goto err; 1396 1397 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 1398 if (sbe == NULL) 1399 goto err; 1400 1401 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1402 be->priv.size); 1403 1404 dev_dbg(tplg->dev, 1405 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1406 be->hdr.name, be->hdr.access); 1407 1408 kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL); 1409 if (kc[i].name == NULL) { 1410 kfree(sbe); 1411 goto err; 1412 } 1413 kc[i].private_value = (long)sbe; 1414 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1415 kc[i].access = be->hdr.access; 1416 1417 sbe->max = be->max; 1418 INIT_LIST_HEAD(&sbe->dobj.list); 1419 1420 /* map standard io handlers and check for external handlers */ 1421 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg); 1422 if (err) { 1423 soc_control_err(tplg, &be->hdr, be->hdr.name); 1424 kfree(sbe); 1425 continue; 1426 } 1427 1428 /* pass control to driver for optional further init */ 1429 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1430 (struct snd_soc_tplg_ctl_hdr *)be); 1431 if (err < 0) { 1432 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1433 be->hdr.name); 1434 kfree(sbe); 1435 continue; 1436 } 1437 } 1438 1439 return kc; 1440 1441 err: 1442 for (--i; i >= 0; i--) { 1443 kfree((void *)kc[i].private_value); 1444 kfree(kc[i].name); 1445 } 1446 1447 kfree(kc); 1448 return NULL; 1449 } 1450 1451 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1452 struct snd_soc_tplg_dapm_widget *w) 1453 { 1454 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1455 struct snd_soc_dapm_widget template, *widget; 1456 struct snd_soc_tplg_ctl_hdr *control_hdr; 1457 struct snd_soc_card *card = tplg->comp->card; 1458 unsigned int kcontrol_type; 1459 int ret = 0; 1460 1461 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1462 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1463 return -EINVAL; 1464 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1465 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1466 return -EINVAL; 1467 1468 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1469 w->name, w->id); 1470 1471 memset(&template, 0, sizeof(template)); 1472 1473 /* map user to kernel widget ID */ 1474 template.id = get_widget_id(w->id); 1475 if (template.id < 0) 1476 return template.id; 1477 1478 /* strings are allocated here, but used and freed by the widget */ 1479 template.name = kstrdup(w->name, GFP_KERNEL); 1480 if (!template.name) 1481 return -ENOMEM; 1482 template.sname = kstrdup(w->sname, GFP_KERNEL); 1483 if (!template.sname) { 1484 ret = -ENOMEM; 1485 goto err; 1486 } 1487 template.reg = w->reg; 1488 template.shift = w->shift; 1489 template.mask = w->mask; 1490 template.subseq = w->subseq; 1491 template.on_val = w->invert ? 0 : 1; 1492 template.off_val = w->invert ? 1 : 0; 1493 template.ignore_suspend = w->ignore_suspend; 1494 template.event_flags = w->event_flags; 1495 template.dobj.index = tplg->index; 1496 1497 tplg->pos += 1498 (sizeof(struct snd_soc_tplg_dapm_widget) + w->priv.size); 1499 if (w->num_kcontrols == 0) { 1500 kcontrol_type = 0; 1501 template.num_kcontrols = 0; 1502 goto widget; 1503 } 1504 1505 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1506 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n", 1507 w->name, w->num_kcontrols, control_hdr->type); 1508 1509 switch (control_hdr->ops.info) { 1510 case SND_SOC_TPLG_CTL_VOLSW: 1511 case SND_SOC_TPLG_CTL_STROBE: 1512 case SND_SOC_TPLG_CTL_VOLSW_SX: 1513 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1514 case SND_SOC_TPLG_CTL_RANGE: 1515 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1516 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */ 1517 template.num_kcontrols = w->num_kcontrols; 1518 template.kcontrol_news = 1519 soc_tplg_dapm_widget_dmixer_create(tplg, 1520 template.num_kcontrols); 1521 if (!template.kcontrol_news) { 1522 ret = -ENOMEM; 1523 goto hdr_err; 1524 } 1525 break; 1526 case SND_SOC_TPLG_CTL_ENUM: 1527 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1528 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1529 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1530 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1531 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */ 1532 template.num_kcontrols = w->num_kcontrols; 1533 template.kcontrol_news = 1534 soc_tplg_dapm_widget_denum_create(tplg, 1535 template.num_kcontrols); 1536 if (!template.kcontrol_news) { 1537 ret = -ENOMEM; 1538 goto hdr_err; 1539 } 1540 break; 1541 case SND_SOC_TPLG_CTL_BYTES: 1542 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */ 1543 template.num_kcontrols = w->num_kcontrols; 1544 template.kcontrol_news = 1545 soc_tplg_dapm_widget_dbytes_create(tplg, 1546 template.num_kcontrols); 1547 if (!template.kcontrol_news) { 1548 ret = -ENOMEM; 1549 goto hdr_err; 1550 } 1551 break; 1552 default: 1553 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1554 control_hdr->ops.get, control_hdr->ops.put, 1555 control_hdr->ops.info); 1556 ret = -EINVAL; 1557 goto hdr_err; 1558 } 1559 1560 widget: 1561 ret = soc_tplg_widget_load(tplg, &template, w); 1562 if (ret < 0) 1563 goto hdr_err; 1564 1565 /* card dapm mutex is held by the core if we are loading topology 1566 * data during sound card init. */ 1567 if (card->instantiated) 1568 widget = snd_soc_dapm_new_control(dapm, &template); 1569 else 1570 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1571 if (IS_ERR(widget)) { 1572 ret = PTR_ERR(widget); 1573 goto hdr_err; 1574 } 1575 1576 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1577 widget->dobj.widget.kcontrol_type = kcontrol_type; 1578 widget->dobj.ops = tplg->ops; 1579 widget->dobj.index = tplg->index; 1580 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1581 1582 ret = soc_tplg_widget_ready(tplg, widget, w); 1583 if (ret < 0) 1584 goto ready_err; 1585 1586 return 0; 1587 1588 ready_err: 1589 snd_soc_tplg_widget_remove(widget); 1590 snd_soc_dapm_free_widget(widget); 1591 hdr_err: 1592 kfree(template.sname); 1593 err: 1594 kfree(template.name); 1595 return ret; 1596 } 1597 1598 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1599 struct snd_soc_tplg_hdr *hdr) 1600 { 1601 struct snd_soc_tplg_dapm_widget *widget; 1602 int ret, count = hdr->count, i; 1603 1604 if (tplg->pass != SOC_TPLG_PASS_WIDGET) 1605 return 0; 1606 1607 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1608 1609 for (i = 0; i < count; i++) { 1610 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1611 if (widget->size != sizeof(*widget)) { 1612 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1613 return -EINVAL; 1614 } 1615 1616 ret = soc_tplg_dapm_widget_create(tplg, widget); 1617 if (ret < 0) { 1618 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1619 widget->name); 1620 return ret; 1621 } 1622 } 1623 1624 return 0; 1625 } 1626 1627 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1628 { 1629 struct snd_soc_card *card = tplg->comp->card; 1630 int ret; 1631 1632 /* Card might not have been registered at this point. 1633 * If so, just return success. 1634 */ 1635 if (!card || !card->instantiated) { 1636 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1637 " widget card binding deferred\n"); 1638 return 0; 1639 } 1640 1641 ret = snd_soc_dapm_new_widgets(card); 1642 if (ret < 0) 1643 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1644 ret); 1645 1646 return 0; 1647 } 1648 1649 static void set_stream_info(struct snd_soc_pcm_stream *stream, 1650 struct snd_soc_tplg_stream_caps *caps) 1651 { 1652 stream->stream_name = kstrdup(caps->name, GFP_KERNEL); 1653 stream->channels_min = caps->channels_min; 1654 stream->channels_max = caps->channels_max; 1655 stream->rates = caps->rates; 1656 stream->rate_min = caps->rate_min; 1657 stream->rate_max = caps->rate_max; 1658 stream->formats = caps->formats; 1659 stream->sig_bits = caps->sig_bits; 1660 } 1661 1662 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1663 unsigned int flag_mask, unsigned int flags) 1664 { 1665 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1666 dai_drv->symmetric_rates = 1667 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1668 1669 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1670 dai_drv->symmetric_channels = 1671 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ? 1672 1 : 0; 1673 1674 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1675 dai_drv->symmetric_samplebits = 1676 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1677 1 : 0; 1678 } 1679 1680 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1681 struct snd_soc_tplg_pcm *pcm) 1682 { 1683 struct snd_soc_dai_driver *dai_drv; 1684 struct snd_soc_pcm_stream *stream; 1685 struct snd_soc_tplg_stream_caps *caps; 1686 int ret; 1687 1688 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1689 if (dai_drv == NULL) 1690 return -ENOMEM; 1691 1692 if (strlen(pcm->dai_name)) 1693 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL); 1694 dai_drv->id = pcm->dai_id; 1695 1696 if (pcm->playback) { 1697 stream = &dai_drv->playback; 1698 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1699 set_stream_info(stream, caps); 1700 } 1701 1702 if (pcm->capture) { 1703 stream = &dai_drv->capture; 1704 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1705 set_stream_info(stream, caps); 1706 } 1707 1708 if (pcm->compress) 1709 dai_drv->compress_new = snd_soc_new_compress; 1710 1711 /* pass control to component driver for optional further init */ 1712 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1713 if (ret < 0) { 1714 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 1715 kfree(dai_drv); 1716 return ret; 1717 } 1718 1719 dai_drv->dobj.index = tplg->index; 1720 dai_drv->dobj.ops = tplg->ops; 1721 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1722 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1723 1724 /* register the DAI to the component */ 1725 return snd_soc_register_dai(tplg->comp, dai_drv); 1726 } 1727 1728 static void set_link_flags(struct snd_soc_dai_link *link, 1729 unsigned int flag_mask, unsigned int flags) 1730 { 1731 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1732 link->symmetric_rates = 1733 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1734 1735 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1736 link->symmetric_channels = 1737 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ? 1738 1 : 0; 1739 1740 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1741 link->symmetric_samplebits = 1742 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1743 1 : 0; 1744 1745 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1746 link->ignore_suspend = 1747 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ? 1748 1 : 0; 1749 } 1750 1751 /* create the FE DAI link */ 1752 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1753 struct snd_soc_tplg_pcm *pcm) 1754 { 1755 struct snd_soc_dai_link *link; 1756 int ret; 1757 1758 link = kzalloc(sizeof(struct snd_soc_dai_link), GFP_KERNEL); 1759 if (link == NULL) 1760 return -ENOMEM; 1761 1762 if (strlen(pcm->pcm_name)) { 1763 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1764 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1765 } 1766 link->id = pcm->pcm_id; 1767 1768 if (strlen(pcm->dai_name)) 1769 link->cpu_dai_name = kstrdup(pcm->dai_name, GFP_KERNEL); 1770 1771 link->codec_name = "snd-soc-dummy"; 1772 link->codec_dai_name = "snd-soc-dummy-dai"; 1773 1774 /* enable DPCM */ 1775 link->dynamic = 1; 1776 link->dpcm_playback = pcm->playback; 1777 link->dpcm_capture = pcm->capture; 1778 if (pcm->flag_mask) 1779 set_link_flags(link, pcm->flag_mask, pcm->flags); 1780 1781 /* pass control to component driver for optional further init */ 1782 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1783 if (ret < 0) { 1784 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n"); 1785 kfree(link); 1786 return ret; 1787 } 1788 1789 link->dobj.index = tplg->index; 1790 link->dobj.ops = tplg->ops; 1791 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1792 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1793 1794 snd_soc_add_dai_link(tplg->comp->card, link); 1795 return 0; 1796 } 1797 1798 /* create a FE DAI and DAI link from the PCM object */ 1799 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1800 struct snd_soc_tplg_pcm *pcm) 1801 { 1802 int ret; 1803 1804 ret = soc_tplg_dai_create(tplg, pcm); 1805 if (ret < 0) 1806 return ret; 1807 1808 return soc_tplg_fe_link_create(tplg, pcm); 1809 } 1810 1811 /* copy stream caps from the old version 4 of source */ 1812 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 1813 struct snd_soc_tplg_stream_caps_v4 *src) 1814 { 1815 dest->size = sizeof(*dest); 1816 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1817 dest->formats = src->formats; 1818 dest->rates = src->rates; 1819 dest->rate_min = src->rate_min; 1820 dest->rate_max = src->rate_max; 1821 dest->channels_min = src->channels_min; 1822 dest->channels_max = src->channels_max; 1823 dest->periods_min = src->periods_min; 1824 dest->periods_max = src->periods_max; 1825 dest->period_size_min = src->period_size_min; 1826 dest->period_size_max = src->period_size_max; 1827 dest->buffer_size_min = src->buffer_size_min; 1828 dest->buffer_size_max = src->buffer_size_max; 1829 } 1830 1831 /** 1832 * pcm_new_ver - Create the new version of PCM from the old version. 1833 * @tplg: topology context 1834 * @src: older version of pcm as a source 1835 * @pcm: latest version of pcm created from the source 1836 * 1837 * Support from vesion 4. User should free the returned pcm manually. 1838 */ 1839 static int pcm_new_ver(struct soc_tplg *tplg, 1840 struct snd_soc_tplg_pcm *src, 1841 struct snd_soc_tplg_pcm **pcm) 1842 { 1843 struct snd_soc_tplg_pcm *dest; 1844 struct snd_soc_tplg_pcm_v4 *src_v4; 1845 int i; 1846 1847 *pcm = NULL; 1848 1849 if (src->size != sizeof(*src_v4)) { 1850 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 1851 return -EINVAL; 1852 } 1853 1854 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 1855 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 1856 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1857 if (!dest) 1858 return -ENOMEM; 1859 1860 dest->size = sizeof(*dest); /* size of latest abi version */ 1861 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1862 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1863 dest->pcm_id = src_v4->pcm_id; 1864 dest->dai_id = src_v4->dai_id; 1865 dest->playback = src_v4->playback; 1866 dest->capture = src_v4->capture; 1867 dest->compress = src_v4->compress; 1868 dest->num_streams = src_v4->num_streams; 1869 for (i = 0; i < dest->num_streams; i++) 1870 memcpy(&dest->stream[i], &src_v4->stream[i], 1871 sizeof(struct snd_soc_tplg_stream)); 1872 1873 for (i = 0; i < 2; i++) 1874 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 1875 1876 *pcm = dest; 1877 return 0; 1878 } 1879 1880 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1881 struct snd_soc_tplg_hdr *hdr) 1882 { 1883 struct snd_soc_tplg_pcm *pcm, *_pcm; 1884 int count = hdr->count; 1885 int i; 1886 bool abi_match; 1887 1888 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI) 1889 return 0; 1890 1891 /* check the element size and count */ 1892 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1893 if (pcm->size > sizeof(struct snd_soc_tplg_pcm) 1894 || pcm->size < sizeof(struct snd_soc_tplg_pcm_v4)) { 1895 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1896 pcm->size); 1897 return -EINVAL; 1898 } 1899 1900 if (soc_tplg_check_elem_count(tplg, 1901 pcm->size, count, 1902 hdr->payload_size, "PCM DAI")) { 1903 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 1904 count); 1905 return -EINVAL; 1906 } 1907 1908 for (i = 0; i < count; i++) { 1909 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1910 1911 /* check ABI version by size, create a new version of pcm 1912 * if abi not match. 1913 */ 1914 if (pcm->size == sizeof(*pcm)) { 1915 abi_match = true; 1916 _pcm = pcm; 1917 } else { 1918 abi_match = false; 1919 pcm_new_ver(tplg, pcm, &_pcm); 1920 } 1921 1922 /* create the FE DAIs and DAI links */ 1923 soc_tplg_pcm_create(tplg, _pcm); 1924 1925 /* offset by version-specific struct size and 1926 * real priv data size 1927 */ 1928 tplg->pos += pcm->size + _pcm->priv.size; 1929 1930 if (!abi_match) 1931 kfree(_pcm); /* free the duplicated one */ 1932 } 1933 1934 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1935 1936 return 0; 1937 } 1938 1939 /** 1940 * set_link_hw_format - Set the HW audio format of the physical DAI link. 1941 * @link: &snd_soc_dai_link which should be updated 1942 * @cfg: physical link configs. 1943 * 1944 * Topology context contains a list of supported HW formats (configs) and 1945 * a default format ID for the physical link. This function will use this 1946 * default ID to choose the HW format to set the link's DAI format for init. 1947 */ 1948 static void set_link_hw_format(struct snd_soc_dai_link *link, 1949 struct snd_soc_tplg_link_config *cfg) 1950 { 1951 struct snd_soc_tplg_hw_config *hw_config; 1952 unsigned char bclk_master, fsync_master; 1953 unsigned char invert_bclk, invert_fsync; 1954 int i; 1955 1956 for (i = 0; i < cfg->num_hw_configs; i++) { 1957 hw_config = &cfg->hw_config[i]; 1958 if (hw_config->id != cfg->default_hw_config_id) 1959 continue; 1960 1961 link->dai_fmt = hw_config->fmt & SND_SOC_DAIFMT_FORMAT_MASK; 1962 1963 /* clock gating */ 1964 switch (hw_config->clock_gated) { 1965 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 1966 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 1967 break; 1968 1969 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 1970 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 1971 break; 1972 1973 default: 1974 /* ignore the value */ 1975 break; 1976 } 1977 1978 /* clock signal polarity */ 1979 invert_bclk = hw_config->invert_bclk; 1980 invert_fsync = hw_config->invert_fsync; 1981 if (!invert_bclk && !invert_fsync) 1982 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 1983 else if (!invert_bclk && invert_fsync) 1984 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 1985 else if (invert_bclk && !invert_fsync) 1986 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 1987 else 1988 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 1989 1990 /* clock masters */ 1991 bclk_master = (hw_config->bclk_master == 1992 SND_SOC_TPLG_BCLK_CM); 1993 fsync_master = (hw_config->fsync_master == 1994 SND_SOC_TPLG_FSYNC_CM); 1995 if (bclk_master && fsync_master) 1996 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; 1997 else if (!bclk_master && fsync_master) 1998 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; 1999 else if (bclk_master && !fsync_master) 2000 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; 2001 else 2002 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; 2003 } 2004 } 2005 2006 /** 2007 * link_new_ver - Create a new physical link config from the old 2008 * version of source. 2009 * @tplg: topology context 2010 * @src: old version of phyical link config as a source 2011 * @link: latest version of physical link config created from the source 2012 * 2013 * Support from vesion 4. User need free the returned link config manually. 2014 */ 2015 static int link_new_ver(struct soc_tplg *tplg, 2016 struct snd_soc_tplg_link_config *src, 2017 struct snd_soc_tplg_link_config **link) 2018 { 2019 struct snd_soc_tplg_link_config *dest; 2020 struct snd_soc_tplg_link_config_v4 *src_v4; 2021 int i; 2022 2023 *link = NULL; 2024 2025 if (src->size != sizeof(struct snd_soc_tplg_link_config_v4)) { 2026 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2027 return -EINVAL; 2028 } 2029 2030 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2031 2032 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2033 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2034 if (!dest) 2035 return -ENOMEM; 2036 2037 dest->size = sizeof(*dest); 2038 dest->id = src_v4->id; 2039 dest->num_streams = src_v4->num_streams; 2040 for (i = 0; i < dest->num_streams; i++) 2041 memcpy(&dest->stream[i], &src_v4->stream[i], 2042 sizeof(struct snd_soc_tplg_stream)); 2043 2044 *link = dest; 2045 return 0; 2046 } 2047 2048 /* Find and configure an existing physical DAI link */ 2049 static int soc_tplg_link_config(struct soc_tplg *tplg, 2050 struct snd_soc_tplg_link_config *cfg) 2051 { 2052 struct snd_soc_dai_link *link; 2053 const char *name, *stream_name; 2054 size_t len; 2055 int ret; 2056 2057 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2058 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2059 return -EINVAL; 2060 else if (len) 2061 name = cfg->name; 2062 else 2063 name = NULL; 2064 2065 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2066 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2067 return -EINVAL; 2068 else if (len) 2069 stream_name = cfg->stream_name; 2070 else 2071 stream_name = NULL; 2072 2073 link = snd_soc_find_dai_link(tplg->comp->card, cfg->id, 2074 name, stream_name); 2075 if (!link) { 2076 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2077 name, cfg->id); 2078 return -EINVAL; 2079 } 2080 2081 /* hw format */ 2082 if (cfg->num_hw_configs) 2083 set_link_hw_format(link, cfg); 2084 2085 /* flags */ 2086 if (cfg->flag_mask) 2087 set_link_flags(link, cfg->flag_mask, cfg->flags); 2088 2089 /* pass control to component driver for optional further init */ 2090 ret = soc_tplg_dai_link_load(tplg, link, cfg); 2091 if (ret < 0) { 2092 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2093 return ret; 2094 } 2095 2096 return 0; 2097 } 2098 2099 2100 /* Load physical link config elements from the topology context */ 2101 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2102 struct snd_soc_tplg_hdr *hdr) 2103 { 2104 struct snd_soc_tplg_link_config *link, *_link; 2105 int count = hdr->count; 2106 int i, ret; 2107 bool abi_match; 2108 2109 if (tplg->pass != SOC_TPLG_PASS_LINK) { 2110 tplg->pos += hdr->size + hdr->payload_size; 2111 return 0; 2112 }; 2113 2114 /* check the element size and count */ 2115 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2116 if (link->size > sizeof(struct snd_soc_tplg_link_config) 2117 || link->size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2118 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2119 link->size); 2120 return -EINVAL; 2121 } 2122 2123 if (soc_tplg_check_elem_count(tplg, 2124 link->size, count, 2125 hdr->payload_size, "physical link config")) { 2126 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2127 count); 2128 return -EINVAL; 2129 } 2130 2131 /* config physical DAI links */ 2132 for (i = 0; i < count; i++) { 2133 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2134 if (link->size == sizeof(*link)) { 2135 abi_match = true; 2136 _link = link; 2137 } else { 2138 abi_match = false; 2139 ret = link_new_ver(tplg, link, &_link); 2140 if (ret < 0) 2141 return ret; 2142 } 2143 2144 ret = soc_tplg_link_config(tplg, _link); 2145 if (ret < 0) 2146 return ret; 2147 2148 /* offset by version-specific struct size and 2149 * real priv data size 2150 */ 2151 tplg->pos += link->size + _link->priv.size; 2152 2153 if (!abi_match) 2154 kfree(_link); /* free the duplicated one */ 2155 } 2156 2157 return 0; 2158 } 2159 2160 /** 2161 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2162 * @tplg: topology context 2163 * @d: physical DAI configs. 2164 * 2165 * The physical dai should already be registered by the platform driver. 2166 * The platform driver should specify the DAI name and ID for matching. 2167 */ 2168 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2169 struct snd_soc_tplg_dai *d) 2170 { 2171 struct snd_soc_dai_link_component dai_component = {0}; 2172 struct snd_soc_dai *dai; 2173 struct snd_soc_dai_driver *dai_drv; 2174 struct snd_soc_pcm_stream *stream; 2175 struct snd_soc_tplg_stream_caps *caps; 2176 int ret; 2177 2178 dai_component.dai_name = d->dai_name; 2179 dai = snd_soc_find_dai(&dai_component); 2180 if (!dai) { 2181 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2182 d->dai_name); 2183 return -EINVAL; 2184 } 2185 2186 if (d->dai_id != dai->id) { 2187 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2188 d->dai_name); 2189 return -EINVAL; 2190 } 2191 2192 dai_drv = dai->driver; 2193 if (!dai_drv) 2194 return -EINVAL; 2195 2196 if (d->playback) { 2197 stream = &dai_drv->playback; 2198 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2199 set_stream_info(stream, caps); 2200 } 2201 2202 if (d->capture) { 2203 stream = &dai_drv->capture; 2204 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2205 set_stream_info(stream, caps); 2206 } 2207 2208 if (d->flag_mask) 2209 set_dai_flags(dai_drv, d->flag_mask, d->flags); 2210 2211 /* pass control to component driver for optional further init */ 2212 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2213 if (ret < 0) { 2214 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 2215 return ret; 2216 } 2217 2218 return 0; 2219 } 2220 2221 /* load physical DAI elements */ 2222 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2223 struct snd_soc_tplg_hdr *hdr) 2224 { 2225 struct snd_soc_tplg_dai *dai; 2226 int count = hdr->count; 2227 int i; 2228 2229 if (tplg->pass != SOC_TPLG_PASS_BE_DAI) 2230 return 0; 2231 2232 /* config the existing BE DAIs */ 2233 for (i = 0; i < count; i++) { 2234 dai = (struct snd_soc_tplg_dai *)tplg->pos; 2235 if (dai->size != sizeof(*dai)) { 2236 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2237 return -EINVAL; 2238 } 2239 2240 soc_tplg_dai_config(tplg, dai); 2241 tplg->pos += (sizeof(*dai) + dai->priv.size); 2242 } 2243 2244 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2245 return 0; 2246 } 2247 2248 /** 2249 * manifest_new_ver - Create a new version of manifest from the old version 2250 * of source. 2251 * @tplg: topology context 2252 * @src: old version of manifest as a source 2253 * @manifest: latest version of manifest created from the source 2254 * 2255 * Support from vesion 4. Users need free the returned manifest manually. 2256 */ 2257 static int manifest_new_ver(struct soc_tplg *tplg, 2258 struct snd_soc_tplg_manifest *src, 2259 struct snd_soc_tplg_manifest **manifest) 2260 { 2261 struct snd_soc_tplg_manifest *dest; 2262 struct snd_soc_tplg_manifest_v4 *src_v4; 2263 2264 *manifest = NULL; 2265 2266 if (src->size != sizeof(*src_v4)) { 2267 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", 2268 src->size); 2269 if (src->size) 2270 return -EINVAL; 2271 src->size = sizeof(*src_v4); 2272 } 2273 2274 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2275 2276 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2277 dest = kzalloc(sizeof(*dest) + src_v4->priv.size, GFP_KERNEL); 2278 if (!dest) 2279 return -ENOMEM; 2280 2281 dest->size = sizeof(*dest); /* size of latest abi version */ 2282 dest->control_elems = src_v4->control_elems; 2283 dest->widget_elems = src_v4->widget_elems; 2284 dest->graph_elems = src_v4->graph_elems; 2285 dest->pcm_elems = src_v4->pcm_elems; 2286 dest->dai_link_elems = src_v4->dai_link_elems; 2287 dest->priv.size = src_v4->priv.size; 2288 if (dest->priv.size) 2289 memcpy(dest->priv.data, src_v4->priv.data, 2290 src_v4->priv.size); 2291 2292 *manifest = dest; 2293 return 0; 2294 } 2295 2296 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2297 struct snd_soc_tplg_hdr *hdr) 2298 { 2299 struct snd_soc_tplg_manifest *manifest, *_manifest; 2300 bool abi_match; 2301 int err; 2302 2303 if (tplg->pass != SOC_TPLG_PASS_MANIFEST) 2304 return 0; 2305 2306 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2307 2308 /* check ABI version by size, create a new manifest if abi not match */ 2309 if (manifest->size == sizeof(*manifest)) { 2310 abi_match = true; 2311 _manifest = manifest; 2312 } else { 2313 abi_match = false; 2314 err = manifest_new_ver(tplg, manifest, &_manifest); 2315 if (err < 0) 2316 return err; 2317 } 2318 2319 /* pass control to component driver for optional further init */ 2320 if (tplg->comp && tplg->ops && tplg->ops->manifest) 2321 return tplg->ops->manifest(tplg->comp, tplg->index, _manifest); 2322 2323 if (!abi_match) /* free the duplicated one */ 2324 kfree(_manifest); 2325 2326 return 0; 2327 } 2328 2329 /* validate header magic, size and type */ 2330 static int soc_valid_header(struct soc_tplg *tplg, 2331 struct snd_soc_tplg_hdr *hdr) 2332 { 2333 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2334 return 0; 2335 2336 if (hdr->size != sizeof(*hdr)) { 2337 dev_err(tplg->dev, 2338 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2339 hdr->type, soc_tplg_get_hdr_offset(tplg), 2340 tplg->fw->size); 2341 return -EINVAL; 2342 } 2343 2344 /* big endian firmware objects not supported atm */ 2345 if (hdr->magic == cpu_to_be32(SND_SOC_TPLG_MAGIC)) { 2346 dev_err(tplg->dev, 2347 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2348 tplg->pass, hdr->magic, 2349 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2350 return -EINVAL; 2351 } 2352 2353 if (hdr->magic != SND_SOC_TPLG_MAGIC) { 2354 dev_err(tplg->dev, 2355 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2356 tplg->pass, hdr->magic, 2357 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2358 return -EINVAL; 2359 } 2360 2361 /* Support ABI from version 4 */ 2362 if (hdr->abi > SND_SOC_TPLG_ABI_VERSION 2363 || hdr->abi < SND_SOC_TPLG_ABI_VERSION_MIN) { 2364 dev_err(tplg->dev, 2365 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2366 tplg->pass, hdr->abi, 2367 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2368 tplg->fw->size); 2369 return -EINVAL; 2370 } 2371 2372 if (hdr->payload_size == 0) { 2373 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2374 soc_tplg_get_hdr_offset(tplg)); 2375 return -EINVAL; 2376 } 2377 2378 if (tplg->pass == hdr->type) 2379 dev_dbg(tplg->dev, 2380 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2381 hdr->payload_size, hdr->type, hdr->version, 2382 hdr->vendor_type, tplg->pass); 2383 2384 return 1; 2385 } 2386 2387 /* check header type and call appropriate handler */ 2388 static int soc_tplg_load_header(struct soc_tplg *tplg, 2389 struct snd_soc_tplg_hdr *hdr) 2390 { 2391 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2392 2393 /* check for matching ID */ 2394 if (hdr->index != tplg->req_index && 2395 tplg->req_index != SND_SOC_TPLG_INDEX_ALL) 2396 return 0; 2397 2398 tplg->index = hdr->index; 2399 2400 switch (hdr->type) { 2401 case SND_SOC_TPLG_TYPE_MIXER: 2402 case SND_SOC_TPLG_TYPE_ENUM: 2403 case SND_SOC_TPLG_TYPE_BYTES: 2404 return soc_tplg_kcontrol_elems_load(tplg, hdr); 2405 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2406 return soc_tplg_dapm_graph_elems_load(tplg, hdr); 2407 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2408 return soc_tplg_dapm_widget_elems_load(tplg, hdr); 2409 case SND_SOC_TPLG_TYPE_PCM: 2410 return soc_tplg_pcm_elems_load(tplg, hdr); 2411 case SND_SOC_TPLG_TYPE_DAI: 2412 return soc_tplg_dai_elems_load(tplg, hdr); 2413 case SND_SOC_TPLG_TYPE_DAI_LINK: 2414 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2415 /* physical link configurations */ 2416 return soc_tplg_link_elems_load(tplg, hdr); 2417 case SND_SOC_TPLG_TYPE_MANIFEST: 2418 return soc_tplg_manifest_load(tplg, hdr); 2419 default: 2420 /* bespoke vendor data object */ 2421 return soc_tplg_vendor_load(tplg, hdr); 2422 } 2423 2424 return 0; 2425 } 2426 2427 /* process the topology file headers */ 2428 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2429 { 2430 struct snd_soc_tplg_hdr *hdr; 2431 int ret; 2432 2433 tplg->pass = SOC_TPLG_PASS_START; 2434 2435 /* process the header types from start to end */ 2436 while (tplg->pass <= SOC_TPLG_PASS_END) { 2437 2438 tplg->hdr_pos = tplg->fw->data; 2439 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2440 2441 while (!soc_tplg_is_eof(tplg)) { 2442 2443 /* make sure header is valid before loading */ 2444 ret = soc_valid_header(tplg, hdr); 2445 if (ret < 0) 2446 return ret; 2447 else if (ret == 0) 2448 break; 2449 2450 /* load the header object */ 2451 ret = soc_tplg_load_header(tplg, hdr); 2452 if (ret < 0) 2453 return ret; 2454 2455 /* goto next header */ 2456 tplg->hdr_pos += hdr->payload_size + 2457 sizeof(struct snd_soc_tplg_hdr); 2458 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2459 } 2460 2461 /* next data type pass */ 2462 tplg->pass++; 2463 } 2464 2465 /* signal DAPM we are complete */ 2466 ret = soc_tplg_dapm_complete(tplg); 2467 if (ret < 0) 2468 dev_err(tplg->dev, 2469 "ASoC: failed to initialise DAPM from Firmware\n"); 2470 2471 return ret; 2472 } 2473 2474 static int soc_tplg_load(struct soc_tplg *tplg) 2475 { 2476 int ret; 2477 2478 ret = soc_tplg_process_headers(tplg); 2479 if (ret == 0) 2480 soc_tplg_complete(tplg); 2481 2482 return ret; 2483 } 2484 2485 /* load audio component topology from "firmware" file */ 2486 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2487 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) 2488 { 2489 struct soc_tplg tplg; 2490 2491 /* setup parsing context */ 2492 memset(&tplg, 0, sizeof(tplg)); 2493 tplg.fw = fw; 2494 tplg.dev = comp->dev; 2495 tplg.comp = comp; 2496 tplg.ops = ops; 2497 tplg.req_index = id; 2498 tplg.io_ops = ops->io_ops; 2499 tplg.io_ops_count = ops->io_ops_count; 2500 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2501 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2502 2503 return soc_tplg_load(&tplg); 2504 } 2505 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2506 2507 /* remove this dynamic widget */ 2508 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) 2509 { 2510 /* make sure we are a widget */ 2511 if (w->dobj.type != SND_SOC_DOBJ_WIDGET) 2512 return; 2513 2514 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); 2515 } 2516 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); 2517 2518 /* remove all dynamic widgets from this DAPM context */ 2519 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, 2520 u32 index) 2521 { 2522 struct snd_soc_dapm_widget *w, *next_w; 2523 2524 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { 2525 2526 /* make sure we are a widget with correct context */ 2527 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) 2528 continue; 2529 2530 /* match ID */ 2531 if (w->dobj.index != index && 2532 w->dobj.index != SND_SOC_TPLG_INDEX_ALL) 2533 continue; 2534 /* check and free and dynamic widget kcontrols */ 2535 snd_soc_tplg_widget_remove(w); 2536 snd_soc_dapm_free_widget(w); 2537 } 2538 snd_soc_dapm_reset_cache(dapm); 2539 } 2540 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); 2541 2542 /* remove dynamic controls from the component driver */ 2543 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) 2544 { 2545 struct snd_soc_dobj *dobj, *next_dobj; 2546 int pass = SOC_TPLG_PASS_END; 2547 2548 /* process the header types from end to start */ 2549 while (pass >= SOC_TPLG_PASS_START) { 2550 2551 /* remove mixer controls */ 2552 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2553 list) { 2554 2555 /* match index */ 2556 if (dobj->index != index && 2557 index != SND_SOC_TPLG_INDEX_ALL) 2558 continue; 2559 2560 switch (dobj->type) { 2561 case SND_SOC_DOBJ_MIXER: 2562 remove_mixer(comp, dobj, pass); 2563 break; 2564 case SND_SOC_DOBJ_ENUM: 2565 remove_enum(comp, dobj, pass); 2566 break; 2567 case SND_SOC_DOBJ_BYTES: 2568 remove_bytes(comp, dobj, pass); 2569 break; 2570 case SND_SOC_DOBJ_WIDGET: 2571 remove_widget(comp, dobj, pass); 2572 break; 2573 case SND_SOC_DOBJ_PCM: 2574 remove_dai(comp, dobj, pass); 2575 break; 2576 case SND_SOC_DOBJ_DAI_LINK: 2577 remove_link(comp, dobj, pass); 2578 break; 2579 default: 2580 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2581 dobj->type); 2582 break; 2583 } 2584 } 2585 pass--; 2586 } 2587 2588 /* let caller know if FW can be freed when no objects are left */ 2589 return !list_empty(&comp->dobj_list); 2590 } 2591 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2592