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