1 /* 2 * soc-topology.c -- ALSA SoC Topology 3 * 4 * Copyright (C) 2012 Texas Instruments Inc. 5 * Copyright (C) 2015 Intel Corporation. 6 * 7 * Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com> 8 * K, Mythri P <mythri.p.k@intel.com> 9 * Prusty, Subhransu S <subhransu.s.prusty@intel.com> 10 * B, Jayachandran <jayachandran.b@intel.com> 11 * Abdullah, Omair M <omair.m.abdullah@intel.com> 12 * Jin, Yao <yao.jin@intel.com> 13 * Lin, Mengdong <mengdong.lin@intel.com> 14 * 15 * This program is free software; you can redistribute it and/or modify it 16 * under the terms of the GNU General Public License as published by the 17 * Free Software Foundation; either version 2 of the License, or (at your 18 * option) any later version. 19 * 20 * Add support to read audio firmware topology alongside firmware text. The 21 * topology data can contain kcontrols, DAPM graphs, widgets, DAIs, DAI links, 22 * equalizers, firmware, coefficients etc. 23 * 24 * This file only manages the core ALSA and ASoC components, all other bespoke 25 * firmware topology data is passed to component drivers for bespoke handling. 26 */ 27 28 #include <linux/kernel.h> 29 #include <linux/export.h> 30 #include <linux/list.h> 31 #include <linux/firmware.h> 32 #include <linux/slab.h> 33 #include <sound/soc.h> 34 #include <sound/soc-dapm.h> 35 #include <sound/soc-topology.h> 36 37 /* 38 * We make several passes over the data (since it wont necessarily be ordered) 39 * and process objects in the following order. This guarantees the component 40 * drivers will be ready with any vendor data before the mixers and DAPM objects 41 * are loaded (that may make use of the vendor data). 42 */ 43 #define SOC_TPLG_PASS_MANIFEST 0 44 #define SOC_TPLG_PASS_VENDOR 1 45 #define SOC_TPLG_PASS_MIXER 2 46 #define SOC_TPLG_PASS_WIDGET 3 47 #define SOC_TPLG_PASS_GRAPH 4 48 #define SOC_TPLG_PASS_PINS 5 49 #define SOC_TPLG_PASS_PCM_DAI 6 50 51 #define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST 52 #define SOC_TPLG_PASS_END SOC_TPLG_PASS_PCM_DAI 53 54 struct soc_tplg { 55 const struct firmware *fw; 56 57 /* runtime FW parsing */ 58 const u8 *pos; /* read postion */ 59 const u8 *hdr_pos; /* header position */ 60 unsigned int pass; /* pass number */ 61 62 /* component caller */ 63 struct device *dev; 64 struct snd_soc_component *comp; 65 u32 index; /* current block index */ 66 u32 req_index; /* required index, only loaded/free matching blocks */ 67 68 /* kcontrol operations */ 69 const struct snd_soc_tplg_kcontrol_ops *io_ops; 70 int io_ops_count; 71 72 /* optional fw loading callbacks to component drivers */ 73 struct snd_soc_tplg_ops *ops; 74 }; 75 76 static int soc_tplg_process_headers(struct soc_tplg *tplg); 77 static void soc_tplg_complete(struct soc_tplg *tplg); 78 struct snd_soc_dapm_widget * 79 snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, 80 const struct snd_soc_dapm_widget *widget); 81 struct snd_soc_dapm_widget * 82 snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, 83 const struct snd_soc_dapm_widget *widget); 84 85 /* check we dont overflow the data for this control chunk */ 86 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size, 87 unsigned int count, size_t bytes, const char *elem_type) 88 { 89 const u8 *end = tplg->pos + elem_size * count; 90 91 if (end > tplg->fw->data + tplg->fw->size) { 92 dev_err(tplg->dev, "ASoC: %s overflow end of data\n", 93 elem_type); 94 return -EINVAL; 95 } 96 97 /* check there is enough room in chunk for control. 98 extra bytes at the end of control are for vendor data here */ 99 if (elem_size * count > bytes) { 100 dev_err(tplg->dev, 101 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n", 102 elem_type, count, elem_size, bytes); 103 return -EINVAL; 104 } 105 106 return 0; 107 } 108 109 static inline int soc_tplg_is_eof(struct soc_tplg *tplg) 110 { 111 const u8 *end = tplg->hdr_pos; 112 113 if (end >= tplg->fw->data + tplg->fw->size) 114 return 1; 115 return 0; 116 } 117 118 static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg) 119 { 120 return (unsigned long)(tplg->hdr_pos - tplg->fw->data); 121 } 122 123 static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg) 124 { 125 return (unsigned long)(tplg->pos - tplg->fw->data); 126 } 127 128 /* mapping of Kcontrol types and associated operations. */ 129 static const struct snd_soc_tplg_kcontrol_ops io_ops[] = { 130 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw, 131 snd_soc_put_volsw, snd_soc_info_volsw}, 132 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx, 133 snd_soc_put_volsw_sx, NULL}, 134 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double, 135 snd_soc_put_enum_double, snd_soc_info_enum_double}, 136 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double, 137 snd_soc_put_enum_double, NULL}, 138 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get, 139 snd_soc_bytes_put, snd_soc_bytes_info}, 140 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range, 141 snd_soc_put_volsw_range, snd_soc_info_volsw_range}, 142 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx, 143 snd_soc_put_xr_sx, snd_soc_info_xr_sx}, 144 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe, 145 snd_soc_put_strobe, NULL}, 146 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw, 147 snd_soc_dapm_put_volsw, NULL}, 148 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double, 149 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double}, 150 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double, 151 snd_soc_dapm_put_enum_double, NULL}, 152 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double, 153 snd_soc_dapm_put_enum_double, NULL}, 154 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch, 155 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch}, 156 }; 157 158 struct soc_tplg_map { 159 int uid; 160 int kid; 161 }; 162 163 /* mapping of widget types from UAPI IDs to kernel IDs */ 164 static const struct soc_tplg_map dapm_map[] = { 165 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input}, 166 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output}, 167 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux}, 168 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer}, 169 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga}, 170 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv}, 171 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc}, 172 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac}, 173 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch}, 174 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre}, 175 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post}, 176 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in}, 177 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out}, 178 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in}, 179 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out}, 180 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link}, 181 }; 182 183 static int tplc_chan_get_reg(struct soc_tplg *tplg, 184 struct snd_soc_tplg_channel *chan, int map) 185 { 186 int i; 187 188 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 189 if (chan[i].id == map) 190 return chan[i].reg; 191 } 192 193 return -EINVAL; 194 } 195 196 static int tplc_chan_get_shift(struct soc_tplg *tplg, 197 struct snd_soc_tplg_channel *chan, int map) 198 { 199 int i; 200 201 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 202 if (chan[i].id == map) 203 return chan[i].shift; 204 } 205 206 return -EINVAL; 207 } 208 209 static int get_widget_id(int tplg_type) 210 { 211 int i; 212 213 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) { 214 if (tplg_type == dapm_map[i].uid) 215 return dapm_map[i].kid; 216 } 217 218 return -EINVAL; 219 } 220 221 static enum snd_soc_dobj_type get_dobj_mixer_type( 222 struct snd_soc_tplg_ctl_hdr *control_hdr) 223 { 224 if (control_hdr == NULL) 225 return SND_SOC_DOBJ_NONE; 226 227 switch (control_hdr->ops.info) { 228 case SND_SOC_TPLG_CTL_VOLSW: 229 case SND_SOC_TPLG_CTL_VOLSW_SX: 230 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 231 case SND_SOC_TPLG_CTL_RANGE: 232 case SND_SOC_TPLG_CTL_STROBE: 233 return SND_SOC_DOBJ_MIXER; 234 case SND_SOC_TPLG_CTL_ENUM: 235 case SND_SOC_TPLG_CTL_ENUM_VALUE: 236 return SND_SOC_DOBJ_ENUM; 237 case SND_SOC_TPLG_CTL_BYTES: 238 return SND_SOC_DOBJ_BYTES; 239 default: 240 return SND_SOC_DOBJ_NONE; 241 } 242 } 243 244 static enum snd_soc_dobj_type get_dobj_type(struct snd_soc_tplg_hdr *hdr, 245 struct snd_soc_tplg_ctl_hdr *control_hdr) 246 { 247 switch (hdr->type) { 248 case SND_SOC_TPLG_TYPE_MIXER: 249 return get_dobj_mixer_type(control_hdr); 250 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 251 case SND_SOC_TPLG_TYPE_MANIFEST: 252 return SND_SOC_DOBJ_NONE; 253 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 254 return SND_SOC_DOBJ_WIDGET; 255 case SND_SOC_TPLG_TYPE_DAI_LINK: 256 return SND_SOC_DOBJ_DAI_LINK; 257 case SND_SOC_TPLG_TYPE_PCM: 258 return SND_SOC_DOBJ_PCM; 259 case SND_SOC_TPLG_TYPE_CODEC_LINK: 260 return SND_SOC_DOBJ_CODEC_LINK; 261 default: 262 return SND_SOC_DOBJ_NONE; 263 } 264 } 265 266 static inline void soc_bind_err(struct soc_tplg *tplg, 267 struct snd_soc_tplg_ctl_hdr *hdr, int index) 268 { 269 dev_err(tplg->dev, 270 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n", 271 hdr->ops.get, hdr->ops.put, hdr->ops.info, index, 272 soc_tplg_get_offset(tplg)); 273 } 274 275 static inline void soc_control_err(struct soc_tplg *tplg, 276 struct snd_soc_tplg_ctl_hdr *hdr, const char *name) 277 { 278 dev_err(tplg->dev, 279 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n", 280 name, hdr->ops.get, hdr->ops.put, hdr->ops.info, 281 soc_tplg_get_offset(tplg)); 282 } 283 284 /* pass vendor data to component driver for processing */ 285 static int soc_tplg_vendor_load_(struct soc_tplg *tplg, 286 struct snd_soc_tplg_hdr *hdr) 287 { 288 int ret = 0; 289 290 if (tplg->comp && tplg->ops && tplg->ops->vendor_load) 291 ret = tplg->ops->vendor_load(tplg->comp, hdr); 292 else { 293 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n", 294 hdr->vendor_type); 295 return -EINVAL; 296 } 297 298 if (ret < 0) 299 dev_err(tplg->dev, 300 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n", 301 soc_tplg_get_hdr_offset(tplg), 302 soc_tplg_get_hdr_offset(tplg), 303 hdr->type, hdr->vendor_type); 304 return ret; 305 } 306 307 /* pass vendor data to component driver for processing */ 308 static int soc_tplg_vendor_load(struct soc_tplg *tplg, 309 struct snd_soc_tplg_hdr *hdr) 310 { 311 if (tplg->pass != SOC_TPLG_PASS_VENDOR) 312 return 0; 313 314 return soc_tplg_vendor_load_(tplg, hdr); 315 } 316 317 /* optionally pass new dynamic widget to component driver. This is mainly for 318 * external widgets where we can assign private data/ops */ 319 static int soc_tplg_widget_load(struct soc_tplg *tplg, 320 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 321 { 322 if (tplg->comp && tplg->ops && tplg->ops->widget_load) 323 return tplg->ops->widget_load(tplg->comp, w, tplg_w); 324 325 return 0; 326 } 327 328 /* pass dynamic FEs configurations to component driver */ 329 static int soc_tplg_pcm_dai_load(struct soc_tplg *tplg, 330 struct snd_soc_tplg_pcm_dai *pcm_dai, int num_pcm_dai) 331 { 332 if (tplg->comp && tplg->ops && tplg->ops->pcm_dai_load) 333 return tplg->ops->pcm_dai_load(tplg->comp, pcm_dai, num_pcm_dai); 334 335 return 0; 336 } 337 338 /* tell the component driver that all firmware has been loaded in this request */ 339 static void soc_tplg_complete(struct soc_tplg *tplg) 340 { 341 if (tplg->comp && tplg->ops && tplg->ops->complete) 342 tplg->ops->complete(tplg->comp); 343 } 344 345 /* add a dynamic kcontrol */ 346 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev, 347 const struct snd_kcontrol_new *control_new, const char *prefix, 348 void *data, struct snd_kcontrol **kcontrol) 349 { 350 int err; 351 352 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix); 353 if (*kcontrol == NULL) { 354 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n", 355 control_new->name); 356 return -ENOMEM; 357 } 358 359 err = snd_ctl_add(card, *kcontrol); 360 if (err < 0) { 361 dev_err(dev, "ASoC: Failed to add %s: %d\n", 362 control_new->name, err); 363 return err; 364 } 365 366 return 0; 367 } 368 369 /* add a dynamic kcontrol for component driver */ 370 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg, 371 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol) 372 { 373 struct snd_soc_component *comp = tplg->comp; 374 375 return soc_tplg_add_dcontrol(comp->card->snd_card, 376 comp->dev, k, NULL, comp, kcontrol); 377 } 378 379 /* remove a mixer kcontrol */ 380 static void remove_mixer(struct snd_soc_component *comp, 381 struct snd_soc_dobj *dobj, int pass) 382 { 383 struct snd_card *card = comp->card->snd_card; 384 struct soc_mixer_control *sm = 385 container_of(dobj, struct soc_mixer_control, dobj); 386 const unsigned int *p = NULL; 387 388 if (pass != SOC_TPLG_PASS_MIXER) 389 return; 390 391 if (dobj->ops && dobj->ops->control_unload) 392 dobj->ops->control_unload(comp, dobj); 393 394 if (sm->dobj.control.kcontrol->tlv.p) 395 p = sm->dobj.control.kcontrol->tlv.p; 396 snd_ctl_remove(card, sm->dobj.control.kcontrol); 397 list_del(&sm->dobj.list); 398 kfree(sm); 399 kfree(p); 400 } 401 402 /* remove an enum kcontrol */ 403 static void remove_enum(struct snd_soc_component *comp, 404 struct snd_soc_dobj *dobj, int pass) 405 { 406 struct snd_card *card = comp->card->snd_card; 407 struct soc_enum *se = container_of(dobj, struct soc_enum, dobj); 408 int i; 409 410 if (pass != SOC_TPLG_PASS_MIXER) 411 return; 412 413 if (dobj->ops && dobj->ops->control_unload) 414 dobj->ops->control_unload(comp, dobj); 415 416 snd_ctl_remove(card, se->dobj.control.kcontrol); 417 list_del(&se->dobj.list); 418 419 kfree(se->dobj.control.dvalues); 420 for (i = 0; i < se->items; i++) 421 kfree(se->dobj.control.dtexts[i]); 422 kfree(se); 423 } 424 425 /* remove a byte kcontrol */ 426 static void remove_bytes(struct snd_soc_component *comp, 427 struct snd_soc_dobj *dobj, int pass) 428 { 429 struct snd_card *card = comp->card->snd_card; 430 struct soc_bytes_ext *sb = 431 container_of(dobj, struct soc_bytes_ext, dobj); 432 433 if (pass != SOC_TPLG_PASS_MIXER) 434 return; 435 436 if (dobj->ops && dobj->ops->control_unload) 437 dobj->ops->control_unload(comp, dobj); 438 439 snd_ctl_remove(card, sb->dobj.control.kcontrol); 440 list_del(&sb->dobj.list); 441 kfree(sb); 442 } 443 444 /* remove a widget and it's kcontrols - routes must be removed first */ 445 static void remove_widget(struct snd_soc_component *comp, 446 struct snd_soc_dobj *dobj, int pass) 447 { 448 struct snd_card *card = comp->card->snd_card; 449 struct snd_soc_dapm_widget *w = 450 container_of(dobj, struct snd_soc_dapm_widget, dobj); 451 int i; 452 453 if (pass != SOC_TPLG_PASS_WIDGET) 454 return; 455 456 if (dobj->ops && dobj->ops->widget_unload) 457 dobj->ops->widget_unload(comp, dobj); 458 459 /* 460 * Dynamic Widgets either have 1 enum kcontrol or 1..N mixers. 461 * The enum may either have an array of values or strings. 462 */ 463 if (dobj->widget.kcontrol_enum) { 464 /* enumerated widget mixer */ 465 struct soc_enum *se = 466 (struct soc_enum *)w->kcontrols[0]->private_value; 467 468 snd_ctl_remove(card, w->kcontrols[0]); 469 470 kfree(se->dobj.control.dvalues); 471 for (i = 0; i < se->items; i++) 472 kfree(se->dobj.control.dtexts[i]); 473 474 kfree(se); 475 kfree(w->kcontrol_news); 476 } else { 477 /* non enumerated widget mixer */ 478 for (i = 0; i < w->num_kcontrols; i++) { 479 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 480 struct soc_mixer_control *sm = 481 (struct soc_mixer_control *) kcontrol->private_value; 482 483 kfree(w->kcontrols[i]->tlv.p); 484 485 snd_ctl_remove(card, w->kcontrols[i]); 486 kfree(sm); 487 } 488 kfree(w->kcontrol_news); 489 } 490 /* widget w is freed by soc-dapm.c */ 491 } 492 493 /* remove PCM DAI configurations */ 494 static void remove_pcm_dai(struct snd_soc_component *comp, 495 struct snd_soc_dobj *dobj, int pass) 496 { 497 if (pass != SOC_TPLG_PASS_PCM_DAI) 498 return; 499 500 if (dobj->ops && dobj->ops->pcm_dai_unload) 501 dobj->ops->pcm_dai_unload(comp, dobj); 502 503 list_del(&dobj->list); 504 kfree(dobj); 505 } 506 507 /* bind a kcontrol to it's IO handlers */ 508 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr, 509 struct snd_kcontrol_new *k, 510 const struct snd_soc_tplg_kcontrol_ops *ops, int num_ops, 511 const struct snd_soc_tplg_kcontrol_ops *bops, int num_bops) 512 { 513 int i; 514 515 /* try and map standard kcontrols handler first */ 516 for (i = 0; i < num_ops; i++) { 517 518 if (ops[i].id == hdr->ops.put) 519 k->put = ops[i].put; 520 if (ops[i].id == hdr->ops.get) 521 k->get = ops[i].get; 522 if (ops[i].id == hdr->ops.info) 523 k->info = ops[i].info; 524 } 525 526 /* standard handlers found ? */ 527 if (k->put && k->get && k->info) 528 return 0; 529 530 /* none found so try bespoke handlers */ 531 for (i = 0; i < num_bops; i++) { 532 533 if (k->put == NULL && bops[i].id == hdr->ops.put) 534 k->put = bops[i].put; 535 if (k->get == NULL && bops[i].id == hdr->ops.get) 536 k->get = bops[i].get; 537 if (k->info == NULL && ops[i].id == hdr->ops.info) 538 k->info = bops[i].info; 539 } 540 541 /* bespoke handlers found ? */ 542 if (k->put && k->get && k->info) 543 return 0; 544 545 /* nothing to bind */ 546 return -EINVAL; 547 } 548 549 /* bind a widgets to it's evnt handlers */ 550 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w, 551 const struct snd_soc_tplg_widget_events *events, 552 int num_events, u16 event_type) 553 { 554 int i; 555 556 w->event = NULL; 557 558 for (i = 0; i < num_events; i++) { 559 if (event_type == events[i].type) { 560 561 /* found - so assign event */ 562 w->event = events[i].event_handler; 563 return 0; 564 } 565 } 566 567 /* not found */ 568 return -EINVAL; 569 } 570 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event); 571 572 /* optionally pass new dynamic kcontrol to component driver. */ 573 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg, 574 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr) 575 { 576 if (tplg->comp && tplg->ops && tplg->ops->control_load) 577 return tplg->ops->control_load(tplg->comp, k, hdr); 578 579 return 0; 580 } 581 582 static int soc_tplg_create_tlv(struct soc_tplg *tplg, 583 struct snd_kcontrol_new *kc, u32 tlv_size) 584 { 585 struct snd_soc_tplg_ctl_tlv *tplg_tlv; 586 struct snd_ctl_tlv *tlv; 587 588 if (tlv_size == 0) 589 return 0; 590 591 tplg_tlv = (struct snd_soc_tplg_ctl_tlv *) tplg->pos; 592 tplg->pos += tlv_size; 593 594 tlv = kzalloc(sizeof(*tlv) + tlv_size, GFP_KERNEL); 595 if (tlv == NULL) 596 return -ENOMEM; 597 598 dev_dbg(tplg->dev, " created TLV type %d size %d bytes\n", 599 tplg_tlv->numid, tplg_tlv->size); 600 601 tlv->numid = tplg_tlv->numid; 602 tlv->length = tplg_tlv->size; 603 memcpy(tlv->tlv, tplg_tlv + 1, tplg_tlv->size); 604 kc->tlv.p = (void *)tlv; 605 606 return 0; 607 } 608 609 static inline void soc_tplg_free_tlv(struct soc_tplg *tplg, 610 struct snd_kcontrol_new *kc) 611 { 612 kfree(kc->tlv.p); 613 } 614 615 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count, 616 size_t size) 617 { 618 struct snd_soc_tplg_bytes_control *be; 619 struct soc_bytes_ext *sbe; 620 struct snd_kcontrol_new kc; 621 int i, err; 622 623 if (soc_tplg_check_elem_count(tplg, 624 sizeof(struct snd_soc_tplg_bytes_control), count, 625 size, "mixer bytes")) { 626 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n", 627 count); 628 return -EINVAL; 629 } 630 631 for (i = 0; i < count; i++) { 632 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 633 634 /* validate kcontrol */ 635 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 636 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 637 return -EINVAL; 638 639 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 640 if (sbe == NULL) 641 return -ENOMEM; 642 643 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 644 be->priv.size); 645 646 dev_dbg(tplg->dev, 647 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 648 be->hdr.name, be->hdr.access); 649 650 memset(&kc, 0, sizeof(kc)); 651 kc.name = be->hdr.name; 652 kc.private_value = (long)sbe; 653 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 654 kc.access = be->hdr.access; 655 656 sbe->max = be->max; 657 sbe->dobj.type = SND_SOC_DOBJ_BYTES; 658 sbe->dobj.ops = tplg->ops; 659 INIT_LIST_HEAD(&sbe->dobj.list); 660 661 /* map io handlers */ 662 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, io_ops, 663 ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count); 664 if (err) { 665 soc_control_err(tplg, &be->hdr, be->hdr.name); 666 kfree(sbe); 667 continue; 668 } 669 670 /* pass control to driver for optional further init */ 671 err = soc_tplg_init_kcontrol(tplg, &kc, 672 (struct snd_soc_tplg_ctl_hdr *)be); 673 if (err < 0) { 674 dev_err(tplg->dev, "ASoC: failed to init %s\n", 675 be->hdr.name); 676 kfree(sbe); 677 continue; 678 } 679 680 /* register control here */ 681 err = soc_tplg_add_kcontrol(tplg, &kc, 682 &sbe->dobj.control.kcontrol); 683 if (err < 0) { 684 dev_err(tplg->dev, "ASoC: failed to add %s\n", 685 be->hdr.name); 686 kfree(sbe); 687 continue; 688 } 689 690 list_add(&sbe->dobj.list, &tplg->comp->dobj_list); 691 } 692 return 0; 693 694 } 695 696 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count, 697 size_t size) 698 { 699 struct snd_soc_tplg_mixer_control *mc; 700 struct soc_mixer_control *sm; 701 struct snd_kcontrol_new kc; 702 int i, err; 703 704 if (soc_tplg_check_elem_count(tplg, 705 sizeof(struct snd_soc_tplg_mixer_control), 706 count, size, "mixers")) { 707 708 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n", 709 count); 710 return -EINVAL; 711 } 712 713 for (i = 0; i < count; i++) { 714 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 715 716 /* validate kcontrol */ 717 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 718 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 719 return -EINVAL; 720 721 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 722 if (sm == NULL) 723 return -ENOMEM; 724 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 725 mc->priv.size); 726 727 dev_dbg(tplg->dev, 728 "ASoC: adding mixer kcontrol %s with access 0x%x\n", 729 mc->hdr.name, mc->hdr.access); 730 731 memset(&kc, 0, sizeof(kc)); 732 kc.name = mc->hdr.name; 733 kc.private_value = (long)sm; 734 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 735 kc.access = mc->hdr.access; 736 737 /* we only support FL/FR channel mapping atm */ 738 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 739 SNDRV_CHMAP_FL); 740 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 741 SNDRV_CHMAP_FR); 742 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 743 SNDRV_CHMAP_FL); 744 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 745 SNDRV_CHMAP_FR); 746 747 sm->max = mc->max; 748 sm->min = mc->min; 749 sm->invert = mc->invert; 750 sm->platform_max = mc->platform_max; 751 sm->dobj.index = tplg->index; 752 sm->dobj.ops = tplg->ops; 753 sm->dobj.type = SND_SOC_DOBJ_MIXER; 754 INIT_LIST_HEAD(&sm->dobj.list); 755 756 /* map io handlers */ 757 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, io_ops, 758 ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count); 759 if (err) { 760 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 761 kfree(sm); 762 continue; 763 } 764 765 /* pass control to driver for optional further init */ 766 err = soc_tplg_init_kcontrol(tplg, &kc, 767 (struct snd_soc_tplg_ctl_hdr *) mc); 768 if (err < 0) { 769 dev_err(tplg->dev, "ASoC: failed to init %s\n", 770 mc->hdr.name); 771 kfree(sm); 772 continue; 773 } 774 775 /* create any TLV data */ 776 soc_tplg_create_tlv(tplg, &kc, mc->hdr.tlv_size); 777 778 /* register control here */ 779 err = soc_tplg_add_kcontrol(tplg, &kc, 780 &sm->dobj.control.kcontrol); 781 if (err < 0) { 782 dev_err(tplg->dev, "ASoC: failed to add %s\n", 783 mc->hdr.name); 784 soc_tplg_free_tlv(tplg, &kc); 785 kfree(sm); 786 continue; 787 } 788 789 list_add(&sm->dobj.list, &tplg->comp->dobj_list); 790 } 791 792 return 0; 793 } 794 795 static int soc_tplg_denum_create_texts(struct soc_enum *se, 796 struct snd_soc_tplg_enum_control *ec) 797 { 798 int i, ret; 799 800 se->dobj.control.dtexts = 801 kzalloc(sizeof(char *) * ec->items, GFP_KERNEL); 802 if (se->dobj.control.dtexts == NULL) 803 return -ENOMEM; 804 805 for (i = 0; i < ec->items; i++) { 806 807 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 808 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 809 ret = -EINVAL; 810 goto err; 811 } 812 813 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL); 814 if (!se->dobj.control.dtexts[i]) { 815 ret = -ENOMEM; 816 goto err; 817 } 818 } 819 820 return 0; 821 822 err: 823 for (--i; i >= 0; i--) 824 kfree(se->dobj.control.dtexts[i]); 825 kfree(se->dobj.control.dtexts); 826 return ret; 827 } 828 829 static int soc_tplg_denum_create_values(struct soc_enum *se, 830 struct snd_soc_tplg_enum_control *ec) 831 { 832 if (ec->items > sizeof(*ec->values)) 833 return -EINVAL; 834 835 se->dobj.control.dvalues = 836 kmalloc(ec->items * sizeof(u32), GFP_KERNEL); 837 if (!se->dobj.control.dvalues) 838 return -ENOMEM; 839 840 memcpy(se->dobj.control.dvalues, ec->values, ec->items * sizeof(u32)); 841 return 0; 842 } 843 844 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count, 845 size_t size) 846 { 847 struct snd_soc_tplg_enum_control *ec; 848 struct soc_enum *se; 849 struct snd_kcontrol_new kc; 850 int i, ret, err; 851 852 if (soc_tplg_check_elem_count(tplg, 853 sizeof(struct snd_soc_tplg_enum_control), 854 count, size, "enums")) { 855 856 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n", 857 count); 858 return -EINVAL; 859 } 860 861 for (i = 0; i < count; i++) { 862 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 863 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 864 ec->priv.size); 865 866 /* validate kcontrol */ 867 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 868 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 869 return -EINVAL; 870 871 se = kzalloc((sizeof(*se)), GFP_KERNEL); 872 if (se == NULL) 873 return -ENOMEM; 874 875 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", 876 ec->hdr.name, ec->items); 877 878 memset(&kc, 0, sizeof(kc)); 879 kc.name = ec->hdr.name; 880 kc.private_value = (long)se; 881 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 882 kc.access = ec->hdr.access; 883 884 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 885 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 886 SNDRV_CHMAP_FL); 887 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 888 SNDRV_CHMAP_FL); 889 890 se->items = ec->items; 891 se->mask = ec->mask; 892 se->dobj.index = tplg->index; 893 se->dobj.type = SND_SOC_DOBJ_ENUM; 894 se->dobj.ops = tplg->ops; 895 INIT_LIST_HEAD(&se->dobj.list); 896 897 switch (ec->hdr.ops.info) { 898 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 899 case SND_SOC_TPLG_CTL_ENUM_VALUE: 900 err = soc_tplg_denum_create_values(se, ec); 901 if (err < 0) { 902 dev_err(tplg->dev, 903 "ASoC: could not create values for %s\n", 904 ec->hdr.name); 905 kfree(se); 906 continue; 907 } 908 /* fall through and create texts */ 909 case SND_SOC_TPLG_CTL_ENUM: 910 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 911 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 912 err = soc_tplg_denum_create_texts(se, ec); 913 if (err < 0) { 914 dev_err(tplg->dev, 915 "ASoC: could not create texts for %s\n", 916 ec->hdr.name); 917 kfree(se); 918 continue; 919 } 920 break; 921 default: 922 dev_err(tplg->dev, 923 "ASoC: invalid enum control type %d for %s\n", 924 ec->hdr.ops.info, ec->hdr.name); 925 kfree(se); 926 continue; 927 } 928 929 /* map io handlers */ 930 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, io_ops, 931 ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count); 932 if (err) { 933 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 934 kfree(se); 935 continue; 936 } 937 938 /* pass control to driver for optional further init */ 939 err = soc_tplg_init_kcontrol(tplg, &kc, 940 (struct snd_soc_tplg_ctl_hdr *) ec); 941 if (err < 0) { 942 dev_err(tplg->dev, "ASoC: failed to init %s\n", 943 ec->hdr.name); 944 kfree(se); 945 continue; 946 } 947 948 /* register control here */ 949 ret = soc_tplg_add_kcontrol(tplg, 950 &kc, &se->dobj.control.kcontrol); 951 if (ret < 0) { 952 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n", 953 ec->hdr.name); 954 kfree(se); 955 continue; 956 } 957 958 list_add(&se->dobj.list, &tplg->comp->dobj_list); 959 } 960 961 return 0; 962 } 963 964 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 965 struct snd_soc_tplg_hdr *hdr) 966 { 967 struct snd_soc_tplg_ctl_hdr *control_hdr; 968 int i; 969 970 if (tplg->pass != SOC_TPLG_PASS_MIXER) { 971 tplg->pos += hdr->size + hdr->payload_size; 972 return 0; 973 } 974 975 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 976 soc_tplg_get_offset(tplg)); 977 978 for (i = 0; i < hdr->count; i++) { 979 980 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 981 982 switch (control_hdr->ops.info) { 983 case SND_SOC_TPLG_CTL_VOLSW: 984 case SND_SOC_TPLG_CTL_STROBE: 985 case SND_SOC_TPLG_CTL_VOLSW_SX: 986 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 987 case SND_SOC_TPLG_CTL_RANGE: 988 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 989 case SND_SOC_TPLG_DAPM_CTL_PIN: 990 soc_tplg_dmixer_create(tplg, 1, hdr->payload_size); 991 break; 992 case SND_SOC_TPLG_CTL_ENUM: 993 case SND_SOC_TPLG_CTL_ENUM_VALUE: 994 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 995 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 996 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 997 soc_tplg_denum_create(tplg, 1, hdr->payload_size); 998 break; 999 case SND_SOC_TPLG_CTL_BYTES: 1000 soc_tplg_dbytes_create(tplg, 1, hdr->payload_size); 1001 break; 1002 default: 1003 soc_bind_err(tplg, control_hdr, i); 1004 return -EINVAL; 1005 } 1006 } 1007 1008 return 0; 1009 } 1010 1011 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1012 struct snd_soc_tplg_hdr *hdr) 1013 { 1014 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1015 struct snd_soc_dapm_route route; 1016 struct snd_soc_tplg_dapm_graph_elem *elem; 1017 int count = hdr->count, i; 1018 1019 if (tplg->pass != SOC_TPLG_PASS_GRAPH) { 1020 tplg->pos += hdr->size + hdr->payload_size; 1021 return 0; 1022 } 1023 1024 if (soc_tplg_check_elem_count(tplg, 1025 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1026 count, hdr->payload_size, "graph")) { 1027 1028 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n", 1029 count); 1030 return -EINVAL; 1031 } 1032 1033 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes\n", count); 1034 1035 for (i = 0; i < count; i++) { 1036 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1037 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1038 1039 /* validate routes */ 1040 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1041 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1042 return -EINVAL; 1043 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1044 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1045 return -EINVAL; 1046 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1047 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1048 return -EINVAL; 1049 1050 route.source = elem->source; 1051 route.sink = elem->sink; 1052 route.connected = NULL; /* set to NULL atm for tplg users */ 1053 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0) 1054 route.control = NULL; 1055 else 1056 route.control = elem->control; 1057 1058 /* add route, but keep going if some fail */ 1059 snd_soc_dapm_add_routes(dapm, &route, 1); 1060 } 1061 1062 return 0; 1063 } 1064 1065 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create( 1066 struct soc_tplg *tplg, int num_kcontrols) 1067 { 1068 struct snd_kcontrol_new *kc; 1069 struct soc_mixer_control *sm; 1070 struct snd_soc_tplg_mixer_control *mc; 1071 int i, err; 1072 1073 kc = kzalloc(sizeof(*kc) * num_kcontrols, GFP_KERNEL); 1074 if (kc == NULL) 1075 return NULL; 1076 1077 for (i = 0; i < num_kcontrols; i++) { 1078 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1079 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 1080 if (sm == NULL) 1081 goto err; 1082 1083 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 1084 mc->priv.size); 1085 1086 /* validate kcontrol */ 1087 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1088 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1089 goto err_str; 1090 1091 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n", 1092 mc->hdr.name, i); 1093 1094 kc[i].name = mc->hdr.name; 1095 kc[i].private_value = (long)sm; 1096 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1097 kc[i].access = mc->hdr.access; 1098 1099 /* we only support FL/FR channel mapping atm */ 1100 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 1101 SNDRV_CHMAP_FL); 1102 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 1103 SNDRV_CHMAP_FR); 1104 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 1105 SNDRV_CHMAP_FL); 1106 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 1107 SNDRV_CHMAP_FR); 1108 1109 sm->max = mc->max; 1110 sm->min = mc->min; 1111 sm->invert = mc->invert; 1112 sm->platform_max = mc->platform_max; 1113 sm->dobj.index = tplg->index; 1114 INIT_LIST_HEAD(&sm->dobj.list); 1115 1116 /* map io handlers */ 1117 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], io_ops, 1118 ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count); 1119 if (err) { 1120 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1121 kfree(sm); 1122 continue; 1123 } 1124 1125 /* pass control to driver for optional further init */ 1126 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1127 (struct snd_soc_tplg_ctl_hdr *)mc); 1128 if (err < 0) { 1129 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1130 mc->hdr.name); 1131 kfree(sm); 1132 continue; 1133 } 1134 } 1135 return kc; 1136 1137 err_str: 1138 kfree(sm); 1139 err: 1140 for (--i; i >= 0; i--) 1141 kfree((void *)kc[i].private_value); 1142 kfree(kc); 1143 return NULL; 1144 } 1145 1146 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create( 1147 struct soc_tplg *tplg) 1148 { 1149 struct snd_kcontrol_new *kc; 1150 struct snd_soc_tplg_enum_control *ec; 1151 struct soc_enum *se; 1152 int i, err; 1153 1154 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1155 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1156 ec->priv.size); 1157 1158 /* validate kcontrol */ 1159 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1160 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1161 return NULL; 1162 1163 kc = kzalloc(sizeof(*kc), GFP_KERNEL); 1164 if (kc == NULL) 1165 return NULL; 1166 1167 se = kzalloc(sizeof(*se), GFP_KERNEL); 1168 if (se == NULL) 1169 goto err; 1170 1171 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1172 ec->hdr.name); 1173 1174 kc->name = ec->hdr.name; 1175 kc->private_value = (long)se; 1176 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1177 kc->access = ec->hdr.access; 1178 1179 /* we only support FL/FR channel mapping atm */ 1180 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1181 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, SNDRV_CHMAP_FL); 1182 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, SNDRV_CHMAP_FR); 1183 1184 se->items = ec->items; 1185 se->mask = ec->mask; 1186 se->dobj.index = tplg->index; 1187 1188 switch (ec->hdr.ops.info) { 1189 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1190 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1191 err = soc_tplg_denum_create_values(se, ec); 1192 if (err < 0) { 1193 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1194 ec->hdr.name); 1195 goto err_se; 1196 } 1197 /* fall through to create texts */ 1198 case SND_SOC_TPLG_CTL_ENUM: 1199 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1200 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1201 err = soc_tplg_denum_create_texts(se, ec); 1202 if (err < 0) { 1203 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1204 ec->hdr.name); 1205 goto err_se; 1206 } 1207 break; 1208 default: 1209 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1210 ec->hdr.ops.info, ec->hdr.name); 1211 goto err_se; 1212 } 1213 1214 /* map io handlers */ 1215 err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, io_ops, 1216 ARRAY_SIZE(io_ops), tplg->io_ops, tplg->io_ops_count); 1217 if (err) { 1218 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1219 goto err_se; 1220 } 1221 1222 /* pass control to driver for optional further init */ 1223 err = soc_tplg_init_kcontrol(tplg, kc, 1224 (struct snd_soc_tplg_ctl_hdr *)ec); 1225 if (err < 0) { 1226 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1227 ec->hdr.name); 1228 goto err_se; 1229 } 1230 1231 return kc; 1232 1233 err_se: 1234 /* free values and texts */ 1235 kfree(se->dobj.control.dvalues); 1236 for (i = 0; i < ec->items; i++) 1237 kfree(se->dobj.control.dtexts[i]); 1238 1239 kfree(se); 1240 err: 1241 kfree(kc); 1242 1243 return NULL; 1244 } 1245 1246 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create( 1247 struct soc_tplg *tplg, int count) 1248 { 1249 struct snd_soc_tplg_bytes_control *be; 1250 struct soc_bytes_ext *sbe; 1251 struct snd_kcontrol_new *kc; 1252 int i, err; 1253 1254 kc = kzalloc(sizeof(*kc) * count, GFP_KERNEL); 1255 if (!kc) 1256 return NULL; 1257 1258 for (i = 0; i < count; i++) { 1259 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1260 1261 /* validate kcontrol */ 1262 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1263 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1264 goto err; 1265 1266 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 1267 if (sbe == NULL) 1268 goto err; 1269 1270 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1271 be->priv.size); 1272 1273 dev_dbg(tplg->dev, 1274 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1275 be->hdr.name, be->hdr.access); 1276 1277 memset(kc, 0, sizeof(*kc)); 1278 kc[i].name = be->hdr.name; 1279 kc[i].private_value = (long)sbe; 1280 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1281 kc[i].access = be->hdr.access; 1282 1283 sbe->max = be->max; 1284 INIT_LIST_HEAD(&sbe->dobj.list); 1285 1286 /* map standard io handlers and check for external handlers */ 1287 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], io_ops, 1288 ARRAY_SIZE(io_ops), tplg->io_ops, 1289 tplg->io_ops_count); 1290 if (err) { 1291 soc_control_err(tplg, &be->hdr, be->hdr.name); 1292 kfree(sbe); 1293 continue; 1294 } 1295 1296 /* pass control to driver for optional further init */ 1297 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1298 (struct snd_soc_tplg_ctl_hdr *)be); 1299 if (err < 0) { 1300 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1301 be->hdr.name); 1302 kfree(sbe); 1303 continue; 1304 } 1305 } 1306 1307 return kc; 1308 1309 err: 1310 for (--i; i >= 0; i--) 1311 kfree((void *)kc[i].private_value); 1312 1313 kfree(kc); 1314 return NULL; 1315 } 1316 1317 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1318 struct snd_soc_tplg_dapm_widget *w) 1319 { 1320 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1321 struct snd_soc_dapm_widget template, *widget; 1322 struct snd_soc_tplg_ctl_hdr *control_hdr; 1323 struct snd_soc_card *card = tplg->comp->card; 1324 int ret = 0; 1325 1326 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1327 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1328 return -EINVAL; 1329 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1330 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1331 return -EINVAL; 1332 1333 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1334 w->name, w->id); 1335 1336 memset(&template, 0, sizeof(template)); 1337 1338 /* map user to kernel widget ID */ 1339 template.id = get_widget_id(w->id); 1340 if (template.id < 0) 1341 return template.id; 1342 1343 template.name = kstrdup(w->name, GFP_KERNEL); 1344 if (!template.name) 1345 return -ENOMEM; 1346 template.sname = kstrdup(w->sname, GFP_KERNEL); 1347 if (!template.sname) { 1348 ret = -ENOMEM; 1349 goto err; 1350 } 1351 template.reg = w->reg; 1352 template.shift = w->shift; 1353 template.mask = w->mask; 1354 template.on_val = w->invert ? 0 : 1; 1355 template.off_val = w->invert ? 1 : 0; 1356 template.ignore_suspend = w->ignore_suspend; 1357 template.event_flags = w->event_flags; 1358 template.dobj.index = tplg->index; 1359 1360 tplg->pos += 1361 (sizeof(struct snd_soc_tplg_dapm_widget) + w->priv.size); 1362 if (w->num_kcontrols == 0) { 1363 template.num_kcontrols = 0; 1364 goto widget; 1365 } 1366 1367 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1368 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n", 1369 w->name, w->num_kcontrols, control_hdr->type); 1370 1371 switch (control_hdr->ops.info) { 1372 case SND_SOC_TPLG_CTL_VOLSW: 1373 case SND_SOC_TPLG_CTL_STROBE: 1374 case SND_SOC_TPLG_CTL_VOLSW_SX: 1375 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1376 case SND_SOC_TPLG_CTL_RANGE: 1377 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1378 template.num_kcontrols = w->num_kcontrols; 1379 template.kcontrol_news = 1380 soc_tplg_dapm_widget_dmixer_create(tplg, 1381 template.num_kcontrols); 1382 if (!template.kcontrol_news) { 1383 ret = -ENOMEM; 1384 goto hdr_err; 1385 } 1386 break; 1387 case SND_SOC_TPLG_CTL_ENUM: 1388 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1389 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1390 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1391 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1392 template.dobj.widget.kcontrol_enum = 1; 1393 template.num_kcontrols = 1; 1394 template.kcontrol_news = 1395 soc_tplg_dapm_widget_denum_create(tplg); 1396 if (!template.kcontrol_news) { 1397 ret = -ENOMEM; 1398 goto hdr_err; 1399 } 1400 break; 1401 case SND_SOC_TPLG_CTL_BYTES: 1402 template.num_kcontrols = w->num_kcontrols; 1403 template.kcontrol_news = 1404 soc_tplg_dapm_widget_dbytes_create(tplg, 1405 template.num_kcontrols); 1406 if (!template.kcontrol_news) { 1407 ret = -ENOMEM; 1408 goto hdr_err; 1409 } 1410 break; 1411 default: 1412 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1413 control_hdr->ops.get, control_hdr->ops.put, 1414 control_hdr->ops.info); 1415 ret = -EINVAL; 1416 goto hdr_err; 1417 } 1418 1419 widget: 1420 ret = soc_tplg_widget_load(tplg, &template, w); 1421 if (ret < 0) 1422 goto hdr_err; 1423 1424 /* card dapm mutex is held by the core if we are loading topology 1425 * data during sound card init. */ 1426 if (card->instantiated) 1427 widget = snd_soc_dapm_new_control(dapm, &template); 1428 else 1429 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1430 if (widget == NULL) { 1431 dev_err(tplg->dev, "ASoC: failed to create widget %s controls\n", 1432 w->name); 1433 goto hdr_err; 1434 } 1435 1436 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1437 widget->dobj.ops = tplg->ops; 1438 widget->dobj.index = tplg->index; 1439 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1440 return 0; 1441 1442 hdr_err: 1443 kfree(template.sname); 1444 err: 1445 kfree(template.name); 1446 return ret; 1447 } 1448 1449 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1450 struct snd_soc_tplg_hdr *hdr) 1451 { 1452 struct snd_soc_tplg_dapm_widget *widget; 1453 int ret, count = hdr->count, i; 1454 1455 if (tplg->pass != SOC_TPLG_PASS_WIDGET) 1456 return 0; 1457 1458 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1459 1460 for (i = 0; i < count; i++) { 1461 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1462 ret = soc_tplg_dapm_widget_create(tplg, widget); 1463 if (ret < 0) 1464 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1465 widget->name); 1466 } 1467 1468 return 0; 1469 } 1470 1471 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1472 { 1473 struct snd_soc_card *card = tplg->comp->card; 1474 int ret; 1475 1476 /* Card might not have been registered at this point. 1477 * If so, just return success. 1478 */ 1479 if (!card || !card->instantiated) { 1480 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1481 "Do not add new widgets now\n"); 1482 return 0; 1483 } 1484 1485 ret = snd_soc_dapm_new_widgets(card); 1486 if (ret < 0) 1487 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1488 ret); 1489 1490 return 0; 1491 } 1492 1493 static int soc_tplg_pcm_dai_elems_load(struct soc_tplg *tplg, 1494 struct snd_soc_tplg_hdr *hdr) 1495 { 1496 struct snd_soc_tplg_pcm_dai *pcm_dai; 1497 struct snd_soc_dobj *dobj; 1498 int count = hdr->count; 1499 int ret; 1500 1501 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI) 1502 return 0; 1503 1504 pcm_dai = (struct snd_soc_tplg_pcm_dai *)tplg->pos; 1505 1506 if (soc_tplg_check_elem_count(tplg, 1507 sizeof(struct snd_soc_tplg_pcm_dai), count, 1508 hdr->payload_size, "PCM DAI")) { 1509 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 1510 count); 1511 return -EINVAL; 1512 } 1513 1514 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1515 tplg->pos += sizeof(struct snd_soc_tplg_pcm_dai) * count; 1516 1517 dobj = kzalloc(sizeof(struct snd_soc_dobj), GFP_KERNEL); 1518 if (dobj == NULL) 1519 return -ENOMEM; 1520 1521 /* Call the platform driver call back to register the dais */ 1522 ret = soc_tplg_pcm_dai_load(tplg, pcm_dai, count); 1523 if (ret < 0) { 1524 dev_err(tplg->comp->dev, "ASoC: PCM DAI loading failed\n"); 1525 goto err; 1526 } 1527 1528 dobj->type = get_dobj_type(hdr, NULL); 1529 dobj->pcm_dai.count = count; 1530 dobj->pcm_dai.pd = pcm_dai; 1531 dobj->ops = tplg->ops; 1532 dobj->index = tplg->index; 1533 list_add(&dobj->list, &tplg->comp->dobj_list); 1534 return 0; 1535 1536 err: 1537 kfree(dobj); 1538 return ret; 1539 } 1540 1541 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 1542 struct snd_soc_tplg_hdr *hdr) 1543 { 1544 struct snd_soc_tplg_manifest *manifest; 1545 1546 if (tplg->pass != SOC_TPLG_PASS_MANIFEST) 1547 return 0; 1548 1549 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 1550 tplg->pos += sizeof(struct snd_soc_tplg_manifest); 1551 1552 if (tplg->comp && tplg->ops && tplg->ops->manifest) 1553 return tplg->ops->manifest(tplg->comp, manifest); 1554 1555 dev_err(tplg->dev, "ASoC: Firmware manifest not supported\n"); 1556 return 0; 1557 } 1558 1559 /* validate header magic, size and type */ 1560 static int soc_valid_header(struct soc_tplg *tplg, 1561 struct snd_soc_tplg_hdr *hdr) 1562 { 1563 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 1564 return 0; 1565 1566 /* big endian firmware objects not supported atm */ 1567 if (hdr->magic == cpu_to_be32(SND_SOC_TPLG_MAGIC)) { 1568 dev_err(tplg->dev, 1569 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 1570 tplg->pass, hdr->magic, 1571 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 1572 return -EINVAL; 1573 } 1574 1575 if (hdr->magic != SND_SOC_TPLG_MAGIC) { 1576 dev_err(tplg->dev, 1577 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 1578 tplg->pass, hdr->magic, 1579 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 1580 return -EINVAL; 1581 } 1582 1583 if (hdr->abi != SND_SOC_TPLG_ABI_VERSION) { 1584 dev_err(tplg->dev, 1585 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 1586 tplg->pass, hdr->abi, 1587 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 1588 tplg->fw->size); 1589 return -EINVAL; 1590 } 1591 1592 if (hdr->payload_size == 0) { 1593 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 1594 soc_tplg_get_hdr_offset(tplg)); 1595 return -EINVAL; 1596 } 1597 1598 if (tplg->pass == hdr->type) 1599 dev_dbg(tplg->dev, 1600 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 1601 hdr->payload_size, hdr->type, hdr->version, 1602 hdr->vendor_type, tplg->pass); 1603 1604 return 1; 1605 } 1606 1607 /* check header type and call appropriate handler */ 1608 static int soc_tplg_load_header(struct soc_tplg *tplg, 1609 struct snd_soc_tplg_hdr *hdr) 1610 { 1611 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 1612 1613 /* check for matching ID */ 1614 if (hdr->index != tplg->req_index && 1615 hdr->index != SND_SOC_TPLG_INDEX_ALL) 1616 return 0; 1617 1618 tplg->index = hdr->index; 1619 1620 switch (hdr->type) { 1621 case SND_SOC_TPLG_TYPE_MIXER: 1622 case SND_SOC_TPLG_TYPE_ENUM: 1623 case SND_SOC_TPLG_TYPE_BYTES: 1624 return soc_tplg_kcontrol_elems_load(tplg, hdr); 1625 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 1626 return soc_tplg_dapm_graph_elems_load(tplg, hdr); 1627 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 1628 return soc_tplg_dapm_widget_elems_load(tplg, hdr); 1629 case SND_SOC_TPLG_TYPE_PCM: 1630 case SND_SOC_TPLG_TYPE_DAI_LINK: 1631 case SND_SOC_TPLG_TYPE_CODEC_LINK: 1632 return soc_tplg_pcm_dai_elems_load(tplg, hdr); 1633 case SND_SOC_TPLG_TYPE_MANIFEST: 1634 return soc_tplg_manifest_load(tplg, hdr); 1635 default: 1636 /* bespoke vendor data object */ 1637 return soc_tplg_vendor_load(tplg, hdr); 1638 } 1639 1640 return 0; 1641 } 1642 1643 /* process the topology file headers */ 1644 static int soc_tplg_process_headers(struct soc_tplg *tplg) 1645 { 1646 struct snd_soc_tplg_hdr *hdr; 1647 int ret; 1648 1649 tplg->pass = SOC_TPLG_PASS_START; 1650 1651 /* process the header types from start to end */ 1652 while (tplg->pass <= SOC_TPLG_PASS_END) { 1653 1654 tplg->hdr_pos = tplg->fw->data; 1655 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 1656 1657 while (!soc_tplg_is_eof(tplg)) { 1658 1659 /* make sure header is valid before loading */ 1660 ret = soc_valid_header(tplg, hdr); 1661 if (ret < 0) 1662 return ret; 1663 else if (ret == 0) 1664 break; 1665 1666 /* load the header object */ 1667 ret = soc_tplg_load_header(tplg, hdr); 1668 if (ret < 0) 1669 return ret; 1670 1671 /* goto next header */ 1672 tplg->hdr_pos += hdr->payload_size + 1673 sizeof(struct snd_soc_tplg_hdr); 1674 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 1675 } 1676 1677 /* next data type pass */ 1678 tplg->pass++; 1679 } 1680 1681 /* signal DAPM we are complete */ 1682 ret = soc_tplg_dapm_complete(tplg); 1683 if (ret < 0) 1684 dev_err(tplg->dev, 1685 "ASoC: failed to initialise DAPM from Firmware\n"); 1686 1687 return ret; 1688 } 1689 1690 static int soc_tplg_load(struct soc_tplg *tplg) 1691 { 1692 int ret; 1693 1694 ret = soc_tplg_process_headers(tplg); 1695 if (ret == 0) 1696 soc_tplg_complete(tplg); 1697 1698 return ret; 1699 } 1700 1701 /* load audio component topology from "firmware" file */ 1702 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 1703 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) 1704 { 1705 struct soc_tplg tplg; 1706 1707 /* setup parsing context */ 1708 memset(&tplg, 0, sizeof(tplg)); 1709 tplg.fw = fw; 1710 tplg.dev = comp->dev; 1711 tplg.comp = comp; 1712 tplg.ops = ops; 1713 tplg.req_index = id; 1714 tplg.io_ops = ops->io_ops; 1715 tplg.io_ops_count = ops->io_ops_count; 1716 1717 return soc_tplg_load(&tplg); 1718 } 1719 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 1720 1721 /* remove this dynamic widget */ 1722 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) 1723 { 1724 /* make sure we are a widget */ 1725 if (w->dobj.type != SND_SOC_DOBJ_WIDGET) 1726 return; 1727 1728 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); 1729 } 1730 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); 1731 1732 /* remove all dynamic widgets from this DAPM context */ 1733 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, 1734 u32 index) 1735 { 1736 struct snd_soc_dapm_widget *w, *next_w; 1737 struct snd_soc_dapm_path *p, *next_p; 1738 1739 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { 1740 1741 /* make sure we are a widget with correct context */ 1742 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) 1743 continue; 1744 1745 /* match ID */ 1746 if (w->dobj.index != index && 1747 w->dobj.index != SND_SOC_TPLG_INDEX_ALL) 1748 continue; 1749 1750 list_del(&w->list); 1751 1752 /* 1753 * remove source and sink paths associated to this widget. 1754 * While removing the path, remove reference to it from both 1755 * source and sink widgets so that path is removed only once. 1756 */ 1757 list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { 1758 list_del(&p->list_sink); 1759 list_del(&p->list_source); 1760 list_del(&p->list); 1761 kfree(p); 1762 } 1763 list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { 1764 list_del(&p->list_sink); 1765 list_del(&p->list_source); 1766 list_del(&p->list); 1767 kfree(p); 1768 } 1769 /* check and free and dynamic widget kcontrols */ 1770 snd_soc_tplg_widget_remove(w); 1771 kfree(w->kcontrols); 1772 kfree(w->name); 1773 kfree(w); 1774 } 1775 } 1776 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); 1777 1778 /* remove dynamic controls from the component driver */ 1779 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) 1780 { 1781 struct snd_soc_dobj *dobj, *next_dobj; 1782 int pass = SOC_TPLG_PASS_END; 1783 1784 /* process the header types from end to start */ 1785 while (pass >= SOC_TPLG_PASS_START) { 1786 1787 /* remove mixer controls */ 1788 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 1789 list) { 1790 1791 /* match index */ 1792 if (dobj->index != index && 1793 dobj->index != SND_SOC_TPLG_INDEX_ALL) 1794 continue; 1795 1796 switch (dobj->type) { 1797 case SND_SOC_DOBJ_MIXER: 1798 remove_mixer(comp, dobj, pass); 1799 break; 1800 case SND_SOC_DOBJ_ENUM: 1801 remove_enum(comp, dobj, pass); 1802 break; 1803 case SND_SOC_DOBJ_BYTES: 1804 remove_bytes(comp, dobj, pass); 1805 break; 1806 case SND_SOC_DOBJ_WIDGET: 1807 remove_widget(comp, dobj, pass); 1808 break; 1809 case SND_SOC_DOBJ_PCM: 1810 case SND_SOC_DOBJ_DAI_LINK: 1811 case SND_SOC_DOBJ_CODEC_LINK: 1812 remove_pcm_dai(comp, dobj, pass); 1813 break; 1814 default: 1815 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 1816 dobj->type); 1817 break; 1818 } 1819 } 1820 pass--; 1821 } 1822 1823 /* let caller know if FW can be freed when no objects are left */ 1824 return !list_empty(&comp->dobj_list); 1825 } 1826 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 1827