1 // SPDX-License-Identifier: GPL-2.0+ 2 // 3 // soc-topology.c -- ALSA SoC Topology 4 // 5 // Copyright (C) 2012 Texas Instruments Inc. 6 // Copyright (C) 2015 Intel Corporation. 7 // 8 // Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com> 9 // K, Mythri P <mythri.p.k@intel.com> 10 // Prusty, Subhransu S <subhransu.s.prusty@intel.com> 11 // B, Jayachandran <jayachandran.b@intel.com> 12 // Abdullah, Omair M <omair.m.abdullah@intel.com> 13 // Jin, Yao <yao.jin@intel.com> 14 // Lin, Mengdong <mengdong.lin@intel.com> 15 // 16 // Add support to read audio firmware topology alongside firmware text. The 17 // topology data can contain kcontrols, DAPM graphs, widgets, DAIs, DAI links, 18 // equalizers, firmware, coefficients etc. 19 // 20 // This file only manages the core ALSA and ASoC components, all other bespoke 21 // firmware topology data is passed to component drivers for bespoke handling. 22 23 #include <linux/kernel.h> 24 #include <linux/export.h> 25 #include <linux/list.h> 26 #include <linux/firmware.h> 27 #include <linux/slab.h> 28 #include <sound/soc.h> 29 #include <sound/soc-dapm.h> 30 #include <sound/soc-topology.h> 31 #include <sound/tlv.h> 32 33 #define SOC_TPLG_MAGIC_BIG_ENDIAN 0x436F5341 /* ASoC in reverse */ 34 35 /* 36 * We make several passes over the data (since it wont necessarily be ordered) 37 * and process objects in the following order. This guarantees the component 38 * drivers will be ready with any vendor data before the mixers and DAPM objects 39 * are loaded (that may make use of the vendor data). 40 */ 41 #define SOC_TPLG_PASS_MANIFEST 0 42 #define SOC_TPLG_PASS_VENDOR 1 43 #define SOC_TPLG_PASS_MIXER 2 44 #define SOC_TPLG_PASS_WIDGET 3 45 #define SOC_TPLG_PASS_PCM_DAI 4 46 #define SOC_TPLG_PASS_GRAPH 5 47 #define SOC_TPLG_PASS_PINS 6 48 #define SOC_TPLG_PASS_BE_DAI 7 49 #define SOC_TPLG_PASS_LINK 8 50 51 #define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST 52 #define SOC_TPLG_PASS_END SOC_TPLG_PASS_LINK 53 54 /* topology context */ 55 struct soc_tplg { 56 const struct firmware *fw; 57 58 /* runtime FW parsing */ 59 const u8 *pos; /* read postion */ 60 const u8 *hdr_pos; /* header position */ 61 unsigned int pass; /* pass number */ 62 63 /* component caller */ 64 struct device *dev; 65 struct snd_soc_component *comp; 66 u32 index; /* current block index */ 67 u32 req_index; /* required index, only loaded/free matching blocks */ 68 69 /* vendor specific kcontrol operations */ 70 const struct snd_soc_tplg_kcontrol_ops *io_ops; 71 int io_ops_count; 72 73 /* vendor specific bytes ext handlers, for TLV bytes controls */ 74 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops; 75 int bytes_ext_ops_count; 76 77 /* optional fw loading callbacks to component drivers */ 78 struct snd_soc_tplg_ops *ops; 79 }; 80 81 static int soc_tplg_process_headers(struct soc_tplg *tplg); 82 static void soc_tplg_complete(struct soc_tplg *tplg); 83 static void soc_tplg_denum_remove_texts(struct soc_enum *se); 84 static void soc_tplg_denum_remove_values(struct soc_enum *se); 85 86 /* check we dont overflow the data for this control chunk */ 87 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size, 88 unsigned int count, size_t bytes, const char *elem_type) 89 { 90 const u8 *end = tplg->pos + elem_size * count; 91 92 if (end > tplg->fw->data + tplg->fw->size) { 93 dev_err(tplg->dev, "ASoC: %s overflow end of data\n", 94 elem_type); 95 return -EINVAL; 96 } 97 98 /* check there is enough room in chunk for control. 99 extra bytes at the end of control are for vendor data here */ 100 if (elem_size * count > bytes) { 101 dev_err(tplg->dev, 102 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n", 103 elem_type, count, elem_size, bytes); 104 return -EINVAL; 105 } 106 107 return 0; 108 } 109 110 static inline int soc_tplg_is_eof(struct soc_tplg *tplg) 111 { 112 const u8 *end = tplg->hdr_pos; 113 114 if (end >= tplg->fw->data + tplg->fw->size) 115 return 1; 116 return 0; 117 } 118 119 static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg) 120 { 121 return (unsigned long)(tplg->hdr_pos - tplg->fw->data); 122 } 123 124 static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg) 125 { 126 return (unsigned long)(tplg->pos - tplg->fw->data); 127 } 128 129 /* mapping of Kcontrol types and associated operations. */ 130 static const struct snd_soc_tplg_kcontrol_ops io_ops[] = { 131 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw, 132 snd_soc_put_volsw, snd_soc_info_volsw}, 133 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx, 134 snd_soc_put_volsw_sx, NULL}, 135 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double, 136 snd_soc_put_enum_double, snd_soc_info_enum_double}, 137 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double, 138 snd_soc_put_enum_double, NULL}, 139 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get, 140 snd_soc_bytes_put, snd_soc_bytes_info}, 141 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range, 142 snd_soc_put_volsw_range, snd_soc_info_volsw_range}, 143 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx, 144 snd_soc_put_xr_sx, snd_soc_info_xr_sx}, 145 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe, 146 snd_soc_put_strobe, NULL}, 147 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw, 148 snd_soc_dapm_put_volsw, snd_soc_info_volsw}, 149 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double, 150 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double}, 151 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double, 152 snd_soc_dapm_put_enum_double, NULL}, 153 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double, 154 snd_soc_dapm_put_enum_double, NULL}, 155 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch, 156 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch}, 157 }; 158 159 struct soc_tplg_map { 160 int uid; 161 int kid; 162 }; 163 164 /* mapping of widget types from UAPI IDs to kernel IDs */ 165 static const struct soc_tplg_map dapm_map[] = { 166 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input}, 167 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output}, 168 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux}, 169 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer}, 170 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga}, 171 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv}, 172 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc}, 173 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac}, 174 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch}, 175 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre}, 176 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post}, 177 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in}, 178 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out}, 179 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in}, 180 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out}, 181 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link}, 182 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer}, 183 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler}, 184 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect}, 185 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen}, 186 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src}, 187 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc}, 188 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder}, 189 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder}, 190 }; 191 192 static int tplc_chan_get_reg(struct soc_tplg *tplg, 193 struct snd_soc_tplg_channel *chan, int map) 194 { 195 int i; 196 197 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 198 if (le32_to_cpu(chan[i].id) == map) 199 return le32_to_cpu(chan[i].reg); 200 } 201 202 return -EINVAL; 203 } 204 205 static int tplc_chan_get_shift(struct soc_tplg *tplg, 206 struct snd_soc_tplg_channel *chan, int map) 207 { 208 int i; 209 210 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 211 if (le32_to_cpu(chan[i].id) == map) 212 return le32_to_cpu(chan[i].shift); 213 } 214 215 return -EINVAL; 216 } 217 218 static int get_widget_id(int tplg_type) 219 { 220 int i; 221 222 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) { 223 if (tplg_type == dapm_map[i].uid) 224 return dapm_map[i].kid; 225 } 226 227 return -EINVAL; 228 } 229 230 static inline void soc_bind_err(struct soc_tplg *tplg, 231 struct snd_soc_tplg_ctl_hdr *hdr, int index) 232 { 233 dev_err(tplg->dev, 234 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n", 235 hdr->ops.get, hdr->ops.put, hdr->ops.info, index, 236 soc_tplg_get_offset(tplg)); 237 } 238 239 static inline void soc_control_err(struct soc_tplg *tplg, 240 struct snd_soc_tplg_ctl_hdr *hdr, const char *name) 241 { 242 dev_err(tplg->dev, 243 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n", 244 name, hdr->ops.get, hdr->ops.put, hdr->ops.info, 245 soc_tplg_get_offset(tplg)); 246 } 247 248 /* pass vendor data to component driver for processing */ 249 static int soc_tplg_vendor_load(struct soc_tplg *tplg, 250 struct snd_soc_tplg_hdr *hdr) 251 { 252 int ret = 0; 253 254 if (tplg->ops && tplg->ops->vendor_load) 255 ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr); 256 else { 257 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n", 258 hdr->vendor_type); 259 return -EINVAL; 260 } 261 262 if (ret < 0) 263 dev_err(tplg->dev, 264 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n", 265 soc_tplg_get_hdr_offset(tplg), 266 soc_tplg_get_hdr_offset(tplg), 267 hdr->type, hdr->vendor_type); 268 return ret; 269 } 270 271 /* optionally pass new dynamic widget to component driver. This is mainly for 272 * external widgets where we can assign private data/ops */ 273 static int soc_tplg_widget_load(struct soc_tplg *tplg, 274 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 275 { 276 if (tplg->ops && tplg->ops->widget_load) 277 return tplg->ops->widget_load(tplg->comp, tplg->index, w, 278 tplg_w); 279 280 return 0; 281 } 282 283 /* optionally pass new dynamic widget to component driver. This is mainly for 284 * external widgets where we can assign private data/ops */ 285 static int soc_tplg_widget_ready(struct soc_tplg *tplg, 286 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 287 { 288 if (tplg->ops && tplg->ops->widget_ready) 289 return tplg->ops->widget_ready(tplg->comp, tplg->index, w, 290 tplg_w); 291 292 return 0; 293 } 294 295 /* pass DAI configurations to component driver for extra initialization */ 296 static int soc_tplg_dai_load(struct soc_tplg *tplg, 297 struct snd_soc_dai_driver *dai_drv, 298 struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai) 299 { 300 if (tplg->ops && tplg->ops->dai_load) 301 return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv, 302 pcm, dai); 303 304 return 0; 305 } 306 307 /* pass link configurations to component driver for extra initialization */ 308 static int soc_tplg_dai_link_load(struct soc_tplg *tplg, 309 struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg) 310 { 311 if (tplg->ops && tplg->ops->link_load) 312 return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg); 313 314 return 0; 315 } 316 317 /* tell the component driver that all firmware has been loaded in this request */ 318 static void soc_tplg_complete(struct soc_tplg *tplg) 319 { 320 if (tplg->ops && tplg->ops->complete) 321 tplg->ops->complete(tplg->comp); 322 } 323 324 /* add a dynamic kcontrol */ 325 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev, 326 const struct snd_kcontrol_new *control_new, const char *prefix, 327 void *data, struct snd_kcontrol **kcontrol) 328 { 329 int err; 330 331 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix); 332 if (*kcontrol == NULL) { 333 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n", 334 control_new->name); 335 return -ENOMEM; 336 } 337 338 err = snd_ctl_add(card, *kcontrol); 339 if (err < 0) { 340 dev_err(dev, "ASoC: Failed to add %s: %d\n", 341 control_new->name, err); 342 return err; 343 } 344 345 return 0; 346 } 347 348 /* add a dynamic kcontrol for component driver */ 349 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg, 350 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol) 351 { 352 struct snd_soc_component *comp = tplg->comp; 353 354 return soc_tplg_add_dcontrol(comp->card->snd_card, 355 comp->dev, k, comp->name_prefix, comp, kcontrol); 356 } 357 358 /* remove a mixer kcontrol */ 359 static void remove_mixer(struct snd_soc_component *comp, 360 struct snd_soc_dobj *dobj, int pass) 361 { 362 struct snd_card *card = comp->card->snd_card; 363 struct soc_mixer_control *sm = 364 container_of(dobj, struct soc_mixer_control, dobj); 365 const unsigned int *p = NULL; 366 367 if (pass != SOC_TPLG_PASS_MIXER) 368 return; 369 370 if (dobj->ops && dobj->ops->control_unload) 371 dobj->ops->control_unload(comp, dobj); 372 373 if (dobj->control.kcontrol->tlv.p) 374 p = dobj->control.kcontrol->tlv.p; 375 snd_ctl_remove(card, dobj->control.kcontrol); 376 list_del(&dobj->list); 377 kfree(sm); 378 kfree(p); 379 } 380 381 /* remove an enum kcontrol */ 382 static void remove_enum(struct snd_soc_component *comp, 383 struct snd_soc_dobj *dobj, int pass) 384 { 385 struct snd_card *card = comp->card->snd_card; 386 struct soc_enum *se = container_of(dobj, struct soc_enum, dobj); 387 388 if (pass != SOC_TPLG_PASS_MIXER) 389 return; 390 391 if (dobj->ops && dobj->ops->control_unload) 392 dobj->ops->control_unload(comp, dobj); 393 394 snd_ctl_remove(card, dobj->control.kcontrol); 395 list_del(&dobj->list); 396 397 soc_tplg_denum_remove_values(se); 398 soc_tplg_denum_remove_texts(se); 399 kfree(se); 400 } 401 402 /* remove a byte kcontrol */ 403 static void remove_bytes(struct snd_soc_component *comp, 404 struct snd_soc_dobj *dobj, int pass) 405 { 406 struct snd_card *card = comp->card->snd_card; 407 struct soc_bytes_ext *sb = 408 container_of(dobj, struct soc_bytes_ext, dobj); 409 410 if (pass != SOC_TPLG_PASS_MIXER) 411 return; 412 413 if (dobj->ops && dobj->ops->control_unload) 414 dobj->ops->control_unload(comp, dobj); 415 416 snd_ctl_remove(card, dobj->control.kcontrol); 417 list_del(&dobj->list); 418 kfree(sb); 419 } 420 421 /* remove a route */ 422 static void remove_route(struct snd_soc_component *comp, 423 struct snd_soc_dobj *dobj, int pass) 424 { 425 struct snd_soc_dapm_route *route = 426 container_of(dobj, struct snd_soc_dapm_route, dobj); 427 428 if (pass != SOC_TPLG_PASS_GRAPH) 429 return; 430 431 if (dobj->ops && dobj->ops->dapm_route_unload) 432 dobj->ops->dapm_route_unload(comp, dobj); 433 434 list_del(&dobj->list); 435 kfree(route); 436 } 437 438 /* remove a widget and it's kcontrols - routes must be removed first */ 439 static void remove_widget(struct snd_soc_component *comp, 440 struct snd_soc_dobj *dobj, int pass) 441 { 442 struct snd_card *card = comp->card->snd_card; 443 struct snd_soc_dapm_widget *w = 444 container_of(dobj, struct snd_soc_dapm_widget, dobj); 445 int i; 446 447 if (pass != SOC_TPLG_PASS_WIDGET) 448 return; 449 450 if (dobj->ops && dobj->ops->widget_unload) 451 dobj->ops->widget_unload(comp, dobj); 452 453 if (!w->kcontrols) 454 goto free_news; 455 456 /* 457 * Dynamic Widgets either have 1..N enum kcontrols or mixers. 458 * The enum may either have an array of values or strings. 459 */ 460 if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) { 461 /* enumerated widget mixer */ 462 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { 463 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 464 struct soc_enum *se = 465 (struct soc_enum *)kcontrol->private_value; 466 467 snd_ctl_remove(card, kcontrol); 468 469 /* free enum kcontrol's dvalues and dtexts */ 470 soc_tplg_denum_remove_values(se); 471 soc_tplg_denum_remove_texts(se); 472 473 kfree(se); 474 kfree(w->kcontrol_news[i].name); 475 } 476 } else { 477 /* volume mixer or bytes controls */ 478 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) { 479 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 480 481 if (dobj->widget.kcontrol_type 482 == SND_SOC_TPLG_TYPE_MIXER) 483 kfree(kcontrol->tlv.p); 484 485 /* Private value is used as struct soc_mixer_control 486 * for volume mixers or soc_bytes_ext for bytes 487 * controls. 488 */ 489 kfree((void *)kcontrol->private_value); 490 snd_ctl_remove(card, kcontrol); 491 kfree(w->kcontrol_news[i].name); 492 } 493 } 494 495 free_news: 496 kfree(w->kcontrol_news); 497 498 list_del(&dobj->list); 499 500 /* widget w is freed by soc-dapm.c */ 501 } 502 503 /* remove DAI configurations */ 504 static void remove_dai(struct snd_soc_component *comp, 505 struct snd_soc_dobj *dobj, int pass) 506 { 507 struct snd_soc_dai_driver *dai_drv = 508 container_of(dobj, struct snd_soc_dai_driver, dobj); 509 struct snd_soc_dai *dai; 510 511 if (pass != SOC_TPLG_PASS_PCM_DAI) 512 return; 513 514 if (dobj->ops && dobj->ops->dai_unload) 515 dobj->ops->dai_unload(comp, dobj); 516 517 for_each_component_dais(comp, dai) 518 if (dai->driver == dai_drv) 519 dai->driver = NULL; 520 521 kfree(dai_drv->playback.stream_name); 522 kfree(dai_drv->capture.stream_name); 523 kfree(dai_drv->name); 524 list_del(&dobj->list); 525 kfree(dai_drv); 526 } 527 528 /* remove link configurations */ 529 static void remove_link(struct snd_soc_component *comp, 530 struct snd_soc_dobj *dobj, int pass) 531 { 532 struct snd_soc_dai_link *link = 533 container_of(dobj, struct snd_soc_dai_link, dobj); 534 535 if (pass != SOC_TPLG_PASS_PCM_DAI) 536 return; 537 538 if (dobj->ops && dobj->ops->link_unload) 539 dobj->ops->link_unload(comp, dobj); 540 541 list_del(&dobj->list); 542 snd_soc_remove_pcm_runtime(comp->card, 543 snd_soc_get_pcm_runtime(comp->card, link)); 544 545 kfree(link->name); 546 kfree(link->stream_name); 547 kfree(link->cpus->dai_name); 548 kfree(link); 549 } 550 551 /* unload dai link */ 552 static void remove_backend_link(struct snd_soc_component *comp, 553 struct snd_soc_dobj *dobj, int pass) 554 { 555 if (pass != SOC_TPLG_PASS_LINK) 556 return; 557 558 if (dobj->ops && dobj->ops->link_unload) 559 dobj->ops->link_unload(comp, dobj); 560 561 /* 562 * We don't free the link here as what remove_link() do since BE 563 * links are not allocated by topology. 564 * We however need to reset the dobj type to its initial values 565 */ 566 dobj->type = SND_SOC_DOBJ_NONE; 567 list_del(&dobj->list); 568 } 569 570 /* bind a kcontrol to it's IO handlers */ 571 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr, 572 struct snd_kcontrol_new *k, 573 const struct soc_tplg *tplg) 574 { 575 const struct snd_soc_tplg_kcontrol_ops *ops; 576 const struct snd_soc_tplg_bytes_ext_ops *ext_ops; 577 int num_ops, i; 578 579 if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES 580 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER 581 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE 582 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 583 struct soc_bytes_ext *sbe; 584 struct snd_soc_tplg_bytes_control *be; 585 586 sbe = (struct soc_bytes_ext *)k->private_value; 587 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr); 588 589 /* TLV bytes controls need standard kcontrol info handler, 590 * TLV callback and extended put/get handlers. 591 */ 592 k->info = snd_soc_bytes_info_ext; 593 k->tlv.c = snd_soc_bytes_tlv_callback; 594 595 ext_ops = tplg->bytes_ext_ops; 596 num_ops = tplg->bytes_ext_ops_count; 597 for (i = 0; i < num_ops; i++) { 598 if (!sbe->put && 599 ext_ops[i].id == le32_to_cpu(be->ext_ops.put)) 600 sbe->put = ext_ops[i].put; 601 if (!sbe->get && 602 ext_ops[i].id == le32_to_cpu(be->ext_ops.get)) 603 sbe->get = ext_ops[i].get; 604 } 605 606 if (sbe->put && sbe->get) 607 return 0; 608 else 609 return -EINVAL; 610 } 611 612 /* try and map vendor specific kcontrol handlers first */ 613 ops = tplg->io_ops; 614 num_ops = tplg->io_ops_count; 615 for (i = 0; i < num_ops; i++) { 616 617 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 618 k->put = ops[i].put; 619 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 620 k->get = ops[i].get; 621 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 622 k->info = ops[i].info; 623 } 624 625 /* vendor specific handlers found ? */ 626 if (k->put && k->get && k->info) 627 return 0; 628 629 /* none found so try standard kcontrol handlers */ 630 ops = io_ops; 631 num_ops = ARRAY_SIZE(io_ops); 632 for (i = 0; i < num_ops; i++) { 633 634 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 635 k->put = ops[i].put; 636 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 637 k->get = ops[i].get; 638 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 639 k->info = ops[i].info; 640 } 641 642 /* standard handlers found ? */ 643 if (k->put && k->get && k->info) 644 return 0; 645 646 /* nothing to bind */ 647 return -EINVAL; 648 } 649 650 /* bind a widgets to it's evnt handlers */ 651 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w, 652 const struct snd_soc_tplg_widget_events *events, 653 int num_events, u16 event_type) 654 { 655 int i; 656 657 w->event = NULL; 658 659 for (i = 0; i < num_events; i++) { 660 if (event_type == events[i].type) { 661 662 /* found - so assign event */ 663 w->event = events[i].event_handler; 664 return 0; 665 } 666 } 667 668 /* not found */ 669 return -EINVAL; 670 } 671 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event); 672 673 /* optionally pass new dynamic kcontrol to component driver. */ 674 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg, 675 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr) 676 { 677 if (tplg->ops && tplg->ops->control_load) 678 return tplg->ops->control_load(tplg->comp, tplg->index, k, 679 hdr); 680 681 return 0; 682 } 683 684 685 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg, 686 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale) 687 { 688 unsigned int item_len = 2 * sizeof(unsigned int); 689 unsigned int *p; 690 691 p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL); 692 if (!p) 693 return -ENOMEM; 694 695 p[0] = SNDRV_CTL_TLVT_DB_SCALE; 696 p[1] = item_len; 697 p[2] = le32_to_cpu(scale->min); 698 p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK) 699 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0); 700 701 kc->tlv.p = (void *)p; 702 return 0; 703 } 704 705 static int soc_tplg_create_tlv(struct soc_tplg *tplg, 706 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc) 707 { 708 struct snd_soc_tplg_ctl_tlv *tplg_tlv; 709 u32 access = le32_to_cpu(tc->access); 710 711 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)) 712 return 0; 713 714 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) { 715 tplg_tlv = &tc->tlv; 716 switch (le32_to_cpu(tplg_tlv->type)) { 717 case SNDRV_CTL_TLVT_DB_SCALE: 718 return soc_tplg_create_tlv_db_scale(tplg, kc, 719 &tplg_tlv->scale); 720 721 /* TODO: add support for other TLV types */ 722 default: 723 dev_dbg(tplg->dev, "Unsupported TLV type %d\n", 724 tplg_tlv->type); 725 return -EINVAL; 726 } 727 } 728 729 return 0; 730 } 731 732 static inline void soc_tplg_free_tlv(struct soc_tplg *tplg, 733 struct snd_kcontrol_new *kc) 734 { 735 kfree(kc->tlv.p); 736 } 737 738 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count, 739 size_t size) 740 { 741 struct snd_soc_tplg_bytes_control *be; 742 struct soc_bytes_ext *sbe; 743 struct snd_kcontrol_new kc; 744 int i, err; 745 746 if (soc_tplg_check_elem_count(tplg, 747 sizeof(struct snd_soc_tplg_bytes_control), count, 748 size, "mixer bytes")) { 749 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n", 750 count); 751 return -EINVAL; 752 } 753 754 for (i = 0; i < count; i++) { 755 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 756 757 /* validate kcontrol */ 758 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 759 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 760 return -EINVAL; 761 762 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 763 if (sbe == NULL) 764 return -ENOMEM; 765 766 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 767 le32_to_cpu(be->priv.size)); 768 769 dev_dbg(tplg->dev, 770 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 771 be->hdr.name, be->hdr.access); 772 773 memset(&kc, 0, sizeof(kc)); 774 kc.name = be->hdr.name; 775 kc.private_value = (long)sbe; 776 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 777 kc.access = le32_to_cpu(be->hdr.access); 778 779 sbe->max = le32_to_cpu(be->max); 780 sbe->dobj.type = SND_SOC_DOBJ_BYTES; 781 sbe->dobj.ops = tplg->ops; 782 INIT_LIST_HEAD(&sbe->dobj.list); 783 784 /* map io handlers */ 785 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg); 786 if (err) { 787 soc_control_err(tplg, &be->hdr, be->hdr.name); 788 kfree(sbe); 789 continue; 790 } 791 792 /* pass control to driver for optional further init */ 793 err = soc_tplg_init_kcontrol(tplg, &kc, 794 (struct snd_soc_tplg_ctl_hdr *)be); 795 if (err < 0) { 796 dev_err(tplg->dev, "ASoC: failed to init %s\n", 797 be->hdr.name); 798 kfree(sbe); 799 continue; 800 } 801 802 /* register control here */ 803 err = soc_tplg_add_kcontrol(tplg, &kc, 804 &sbe->dobj.control.kcontrol); 805 if (err < 0) { 806 dev_err(tplg->dev, "ASoC: failed to add %s\n", 807 be->hdr.name); 808 kfree(sbe); 809 continue; 810 } 811 812 list_add(&sbe->dobj.list, &tplg->comp->dobj_list); 813 } 814 return 0; 815 816 } 817 818 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count, 819 size_t size) 820 { 821 struct snd_soc_tplg_mixer_control *mc; 822 struct soc_mixer_control *sm; 823 struct snd_kcontrol_new kc; 824 int i, err; 825 826 if (soc_tplg_check_elem_count(tplg, 827 sizeof(struct snd_soc_tplg_mixer_control), 828 count, size, "mixers")) { 829 830 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n", 831 count); 832 return -EINVAL; 833 } 834 835 for (i = 0; i < count; i++) { 836 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 837 838 /* validate kcontrol */ 839 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 840 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 841 return -EINVAL; 842 843 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 844 if (sm == NULL) 845 return -ENOMEM; 846 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 847 le32_to_cpu(mc->priv.size)); 848 849 dev_dbg(tplg->dev, 850 "ASoC: adding mixer kcontrol %s with access 0x%x\n", 851 mc->hdr.name, mc->hdr.access); 852 853 memset(&kc, 0, sizeof(kc)); 854 kc.name = mc->hdr.name; 855 kc.private_value = (long)sm; 856 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 857 kc.access = le32_to_cpu(mc->hdr.access); 858 859 /* we only support FL/FR channel mapping atm */ 860 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 861 SNDRV_CHMAP_FL); 862 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 863 SNDRV_CHMAP_FR); 864 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 865 SNDRV_CHMAP_FL); 866 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 867 SNDRV_CHMAP_FR); 868 869 sm->max = le32_to_cpu(mc->max); 870 sm->min = le32_to_cpu(mc->min); 871 sm->invert = le32_to_cpu(mc->invert); 872 sm->platform_max = le32_to_cpu(mc->platform_max); 873 sm->dobj.index = tplg->index; 874 sm->dobj.ops = tplg->ops; 875 sm->dobj.type = SND_SOC_DOBJ_MIXER; 876 INIT_LIST_HEAD(&sm->dobj.list); 877 878 /* map io handlers */ 879 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg); 880 if (err) { 881 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 882 kfree(sm); 883 continue; 884 } 885 886 /* create any TLV data */ 887 err = soc_tplg_create_tlv(tplg, &kc, &mc->hdr); 888 if (err < 0) { 889 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 890 mc->hdr.name); 891 kfree(sm); 892 continue; 893 } 894 895 /* pass control to driver for optional further init */ 896 err = soc_tplg_init_kcontrol(tplg, &kc, 897 (struct snd_soc_tplg_ctl_hdr *) mc); 898 if (err < 0) { 899 dev_err(tplg->dev, "ASoC: failed to init %s\n", 900 mc->hdr.name); 901 soc_tplg_free_tlv(tplg, &kc); 902 kfree(sm); 903 continue; 904 } 905 906 /* register control here */ 907 err = soc_tplg_add_kcontrol(tplg, &kc, 908 &sm->dobj.control.kcontrol); 909 if (err < 0) { 910 dev_err(tplg->dev, "ASoC: failed to add %s\n", 911 mc->hdr.name); 912 soc_tplg_free_tlv(tplg, &kc); 913 kfree(sm); 914 continue; 915 } 916 917 list_add(&sm->dobj.list, &tplg->comp->dobj_list); 918 } 919 920 return 0; 921 } 922 923 static int soc_tplg_denum_create_texts(struct soc_enum *se, 924 struct snd_soc_tplg_enum_control *ec) 925 { 926 int i, ret; 927 928 se->dobj.control.dtexts = 929 kcalloc(le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL); 930 if (se->dobj.control.dtexts == NULL) 931 return -ENOMEM; 932 933 for (i = 0; i < le32_to_cpu(ec->items); i++) { 934 935 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 936 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 937 ret = -EINVAL; 938 goto err; 939 } 940 941 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL); 942 if (!se->dobj.control.dtexts[i]) { 943 ret = -ENOMEM; 944 goto err; 945 } 946 } 947 948 se->items = le32_to_cpu(ec->items); 949 se->texts = (const char * const *)se->dobj.control.dtexts; 950 return 0; 951 952 err: 953 se->items = i; 954 soc_tplg_denum_remove_texts(se); 955 return ret; 956 } 957 958 static inline void soc_tplg_denum_remove_texts(struct soc_enum *se) 959 { 960 int i = se->items; 961 962 for (--i; i >= 0; i--) 963 kfree(se->dobj.control.dtexts[i]); 964 kfree(se->dobj.control.dtexts); 965 } 966 967 static int soc_tplg_denum_create_values(struct soc_enum *se, 968 struct snd_soc_tplg_enum_control *ec) 969 { 970 int i; 971 972 if (le32_to_cpu(ec->items) > sizeof(*ec->values)) 973 return -EINVAL; 974 975 se->dobj.control.dvalues = kzalloc(le32_to_cpu(ec->items) * 976 sizeof(u32), 977 GFP_KERNEL); 978 if (!se->dobj.control.dvalues) 979 return -ENOMEM; 980 981 /* convert from little-endian */ 982 for (i = 0; i < le32_to_cpu(ec->items); i++) { 983 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]); 984 } 985 986 return 0; 987 } 988 989 static inline void soc_tplg_denum_remove_values(struct soc_enum *se) 990 { 991 kfree(se->dobj.control.dvalues); 992 } 993 994 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count, 995 size_t size) 996 { 997 struct snd_soc_tplg_enum_control *ec; 998 struct soc_enum *se; 999 struct snd_kcontrol_new kc; 1000 int i, ret, err; 1001 1002 if (soc_tplg_check_elem_count(tplg, 1003 sizeof(struct snd_soc_tplg_enum_control), 1004 count, size, "enums")) { 1005 1006 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n", 1007 count); 1008 return -EINVAL; 1009 } 1010 1011 for (i = 0; i < count; i++) { 1012 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1013 1014 /* validate kcontrol */ 1015 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1016 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1017 return -EINVAL; 1018 1019 se = kzalloc((sizeof(*se)), GFP_KERNEL); 1020 if (se == NULL) 1021 return -ENOMEM; 1022 1023 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1024 le32_to_cpu(ec->priv.size)); 1025 1026 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", 1027 ec->hdr.name, ec->items); 1028 1029 memset(&kc, 0, sizeof(kc)); 1030 kc.name = ec->hdr.name; 1031 kc.private_value = (long)se; 1032 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1033 kc.access = le32_to_cpu(ec->hdr.access); 1034 1035 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1036 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1037 SNDRV_CHMAP_FL); 1038 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1039 SNDRV_CHMAP_FL); 1040 1041 se->mask = le32_to_cpu(ec->mask); 1042 se->dobj.index = tplg->index; 1043 se->dobj.type = SND_SOC_DOBJ_ENUM; 1044 se->dobj.ops = tplg->ops; 1045 INIT_LIST_HEAD(&se->dobj.list); 1046 1047 switch (le32_to_cpu(ec->hdr.ops.info)) { 1048 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1049 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1050 err = soc_tplg_denum_create_values(se, ec); 1051 if (err < 0) { 1052 dev_err(tplg->dev, 1053 "ASoC: could not create values for %s\n", 1054 ec->hdr.name); 1055 kfree(se); 1056 continue; 1057 } 1058 /* fall through */ 1059 case SND_SOC_TPLG_CTL_ENUM: 1060 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1061 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1062 err = soc_tplg_denum_create_texts(se, ec); 1063 if (err < 0) { 1064 dev_err(tplg->dev, 1065 "ASoC: could not create texts for %s\n", 1066 ec->hdr.name); 1067 kfree(se); 1068 continue; 1069 } 1070 break; 1071 default: 1072 dev_err(tplg->dev, 1073 "ASoC: invalid enum control type %d for %s\n", 1074 ec->hdr.ops.info, ec->hdr.name); 1075 kfree(se); 1076 continue; 1077 } 1078 1079 /* map io handlers */ 1080 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg); 1081 if (err) { 1082 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1083 kfree(se); 1084 continue; 1085 } 1086 1087 /* pass control to driver for optional further init */ 1088 err = soc_tplg_init_kcontrol(tplg, &kc, 1089 (struct snd_soc_tplg_ctl_hdr *) ec); 1090 if (err < 0) { 1091 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1092 ec->hdr.name); 1093 kfree(se); 1094 continue; 1095 } 1096 1097 /* register control here */ 1098 ret = soc_tplg_add_kcontrol(tplg, 1099 &kc, &se->dobj.control.kcontrol); 1100 if (ret < 0) { 1101 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n", 1102 ec->hdr.name); 1103 kfree(se); 1104 continue; 1105 } 1106 1107 list_add(&se->dobj.list, &tplg->comp->dobj_list); 1108 } 1109 1110 return 0; 1111 } 1112 1113 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 1114 struct snd_soc_tplg_hdr *hdr) 1115 { 1116 struct snd_soc_tplg_ctl_hdr *control_hdr; 1117 int ret; 1118 int i; 1119 1120 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 1121 soc_tplg_get_offset(tplg)); 1122 1123 for (i = 0; i < le32_to_cpu(hdr->count); i++) { 1124 1125 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1126 1127 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) { 1128 dev_err(tplg->dev, "ASoC: invalid control size\n"); 1129 return -EINVAL; 1130 } 1131 1132 switch (le32_to_cpu(control_hdr->ops.info)) { 1133 case SND_SOC_TPLG_CTL_VOLSW: 1134 case SND_SOC_TPLG_CTL_STROBE: 1135 case SND_SOC_TPLG_CTL_VOLSW_SX: 1136 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1137 case SND_SOC_TPLG_CTL_RANGE: 1138 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1139 case SND_SOC_TPLG_DAPM_CTL_PIN: 1140 ret = soc_tplg_dmixer_create(tplg, 1, 1141 le32_to_cpu(hdr->payload_size)); 1142 break; 1143 case SND_SOC_TPLG_CTL_ENUM: 1144 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1145 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1146 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1147 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1148 ret = soc_tplg_denum_create(tplg, 1, 1149 le32_to_cpu(hdr->payload_size)); 1150 break; 1151 case SND_SOC_TPLG_CTL_BYTES: 1152 ret = soc_tplg_dbytes_create(tplg, 1, 1153 le32_to_cpu(hdr->payload_size)); 1154 break; 1155 default: 1156 soc_bind_err(tplg, control_hdr, i); 1157 return -EINVAL; 1158 } 1159 if (ret < 0) { 1160 dev_err(tplg->dev, "ASoC: invalid control\n"); 1161 return ret; 1162 } 1163 1164 } 1165 1166 return 0; 1167 } 1168 1169 /* optionally pass new dynamic kcontrol to component driver. */ 1170 static int soc_tplg_add_route(struct soc_tplg *tplg, 1171 struct snd_soc_dapm_route *route) 1172 { 1173 if (tplg->ops && tplg->ops->dapm_route_load) 1174 return tplg->ops->dapm_route_load(tplg->comp, tplg->index, 1175 route); 1176 1177 return 0; 1178 } 1179 1180 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1181 struct snd_soc_tplg_hdr *hdr) 1182 { 1183 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1184 struct snd_soc_tplg_dapm_graph_elem *elem; 1185 struct snd_soc_dapm_route **routes; 1186 int count, i, j; 1187 int ret = 0; 1188 1189 count = le32_to_cpu(hdr->count); 1190 1191 if (soc_tplg_check_elem_count(tplg, 1192 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1193 count, le32_to_cpu(hdr->payload_size), "graph")) { 1194 1195 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n", 1196 count); 1197 return -EINVAL; 1198 } 1199 1200 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, 1201 hdr->index); 1202 1203 /* allocate memory for pointer to array of dapm routes */ 1204 routes = kcalloc(count, sizeof(struct snd_soc_dapm_route *), 1205 GFP_KERNEL); 1206 if (!routes) 1207 return -ENOMEM; 1208 1209 /* 1210 * allocate memory for each dapm route in the array. 1211 * This needs to be done individually so that 1212 * each route can be freed when it is removed in remove_route(). 1213 */ 1214 for (i = 0; i < count; i++) { 1215 routes[i] = kzalloc(sizeof(*routes[i]), GFP_KERNEL); 1216 if (!routes[i]) { 1217 /* free previously allocated memory */ 1218 for (j = 0; j < i; j++) 1219 kfree(routes[j]); 1220 1221 kfree(routes); 1222 return -ENOMEM; 1223 } 1224 } 1225 1226 for (i = 0; i < count; i++) { 1227 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1228 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1229 1230 /* validate routes */ 1231 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1232 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1233 ret = -EINVAL; 1234 break; 1235 } 1236 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1237 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1238 ret = -EINVAL; 1239 break; 1240 } 1241 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1242 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 1243 ret = -EINVAL; 1244 break; 1245 } 1246 1247 routes[i]->source = elem->source; 1248 routes[i]->sink = elem->sink; 1249 1250 /* set to NULL atm for tplg users */ 1251 routes[i]->connected = NULL; 1252 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0) 1253 routes[i]->control = NULL; 1254 else 1255 routes[i]->control = elem->control; 1256 1257 /* add route dobj to dobj_list */ 1258 routes[i]->dobj.type = SND_SOC_DOBJ_GRAPH; 1259 routes[i]->dobj.ops = tplg->ops; 1260 routes[i]->dobj.index = tplg->index; 1261 list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list); 1262 1263 ret = soc_tplg_add_route(tplg, routes[i]); 1264 if (ret < 0) { 1265 /* 1266 * this route was added to the list, it will 1267 * be freed in remove_route() so increment the 1268 * counter to skip it in the error handling 1269 * below. 1270 */ 1271 i++; 1272 break; 1273 } 1274 1275 /* add route, but keep going if some fail */ 1276 snd_soc_dapm_add_routes(dapm, routes[i], 1); 1277 } 1278 1279 /* 1280 * free memory allocated for all dapm routes not added to the 1281 * list in case of error 1282 */ 1283 if (ret < 0) { 1284 while (i < count) 1285 kfree(routes[i++]); 1286 } 1287 1288 /* 1289 * free pointer to array of dapm routes as this is no longer needed. 1290 * The memory allocated for each dapm route will be freed 1291 * when it is removed in remove_route(). 1292 */ 1293 kfree(routes); 1294 1295 return ret; 1296 } 1297 1298 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create( 1299 struct soc_tplg *tplg, int num_kcontrols) 1300 { 1301 struct snd_kcontrol_new *kc; 1302 struct soc_mixer_control *sm; 1303 struct snd_soc_tplg_mixer_control *mc; 1304 int i, err; 1305 1306 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1307 if (kc == NULL) 1308 return NULL; 1309 1310 for (i = 0; i < num_kcontrols; i++) { 1311 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1312 1313 /* validate kcontrol */ 1314 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1315 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1316 goto err_sm; 1317 1318 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 1319 if (sm == NULL) 1320 goto err_sm; 1321 1322 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 1323 le32_to_cpu(mc->priv.size)); 1324 1325 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n", 1326 mc->hdr.name, i); 1327 1328 kc[i].private_value = (long)sm; 1329 kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL); 1330 if (kc[i].name == NULL) 1331 goto err_sm; 1332 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1333 kc[i].access = le32_to_cpu(mc->hdr.access); 1334 1335 /* we only support FL/FR channel mapping atm */ 1336 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 1337 SNDRV_CHMAP_FL); 1338 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 1339 SNDRV_CHMAP_FR); 1340 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 1341 SNDRV_CHMAP_FL); 1342 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 1343 SNDRV_CHMAP_FR); 1344 1345 sm->max = le32_to_cpu(mc->max); 1346 sm->min = le32_to_cpu(mc->min); 1347 sm->invert = le32_to_cpu(mc->invert); 1348 sm->platform_max = le32_to_cpu(mc->platform_max); 1349 sm->dobj.index = tplg->index; 1350 INIT_LIST_HEAD(&sm->dobj.list); 1351 1352 /* map io handlers */ 1353 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg); 1354 if (err) { 1355 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1356 goto err_sm; 1357 } 1358 1359 /* create any TLV data */ 1360 err = soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr); 1361 if (err < 0) { 1362 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 1363 mc->hdr.name); 1364 kfree(sm); 1365 continue; 1366 } 1367 1368 /* pass control to driver for optional further init */ 1369 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1370 (struct snd_soc_tplg_ctl_hdr *)mc); 1371 if (err < 0) { 1372 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1373 mc->hdr.name); 1374 goto err_sm; 1375 } 1376 } 1377 return kc; 1378 1379 err_sm: 1380 for (; i >= 0; i--) { 1381 soc_tplg_free_tlv(tplg, &kc[i]); 1382 sm = (struct soc_mixer_control *)kc[i].private_value; 1383 kfree(sm); 1384 kfree(kc[i].name); 1385 } 1386 kfree(kc); 1387 1388 return NULL; 1389 } 1390 1391 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create( 1392 struct soc_tplg *tplg, int num_kcontrols) 1393 { 1394 struct snd_kcontrol_new *kc; 1395 struct snd_soc_tplg_enum_control *ec; 1396 struct soc_enum *se; 1397 int i, err; 1398 1399 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1400 if (kc == NULL) 1401 return NULL; 1402 1403 for (i = 0; i < num_kcontrols; i++) { 1404 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1405 /* validate kcontrol */ 1406 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1407 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1408 goto err_se; 1409 1410 se = kzalloc(sizeof(*se), GFP_KERNEL); 1411 if (se == NULL) 1412 goto err_se; 1413 1414 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1415 le32_to_cpu(ec->priv.size)); 1416 1417 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1418 ec->hdr.name); 1419 1420 kc[i].private_value = (long)se; 1421 kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL); 1422 if (kc[i].name == NULL) 1423 goto err_se; 1424 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1425 kc[i].access = le32_to_cpu(ec->hdr.access); 1426 1427 /* we only support FL/FR channel mapping atm */ 1428 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1429 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1430 SNDRV_CHMAP_FL); 1431 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1432 SNDRV_CHMAP_FR); 1433 1434 se->items = le32_to_cpu(ec->items); 1435 se->mask = le32_to_cpu(ec->mask); 1436 se->dobj.index = tplg->index; 1437 1438 switch (le32_to_cpu(ec->hdr.ops.info)) { 1439 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1440 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1441 err = soc_tplg_denum_create_values(se, ec); 1442 if (err < 0) { 1443 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1444 ec->hdr.name); 1445 goto err_se; 1446 } 1447 /* fall through */ 1448 case SND_SOC_TPLG_CTL_ENUM: 1449 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1450 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1451 err = soc_tplg_denum_create_texts(se, ec); 1452 if (err < 0) { 1453 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1454 ec->hdr.name); 1455 goto err_se; 1456 } 1457 break; 1458 default: 1459 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1460 ec->hdr.ops.info, ec->hdr.name); 1461 goto err_se; 1462 } 1463 1464 /* map io handlers */ 1465 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg); 1466 if (err) { 1467 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1468 goto err_se; 1469 } 1470 1471 /* pass control to driver for optional further init */ 1472 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1473 (struct snd_soc_tplg_ctl_hdr *)ec); 1474 if (err < 0) { 1475 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1476 ec->hdr.name); 1477 goto err_se; 1478 } 1479 } 1480 1481 return kc; 1482 1483 err_se: 1484 for (; i >= 0; i--) { 1485 /* free values and texts */ 1486 se = (struct soc_enum *)kc[i].private_value; 1487 1488 if (se) { 1489 soc_tplg_denum_remove_values(se); 1490 soc_tplg_denum_remove_texts(se); 1491 } 1492 1493 kfree(se); 1494 kfree(kc[i].name); 1495 } 1496 kfree(kc); 1497 1498 return NULL; 1499 } 1500 1501 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create( 1502 struct soc_tplg *tplg, int num_kcontrols) 1503 { 1504 struct snd_soc_tplg_bytes_control *be; 1505 struct soc_bytes_ext *sbe; 1506 struct snd_kcontrol_new *kc; 1507 int i, err; 1508 1509 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1510 if (!kc) 1511 return NULL; 1512 1513 for (i = 0; i < num_kcontrols; i++) { 1514 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1515 1516 /* validate kcontrol */ 1517 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1518 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1519 goto err_sbe; 1520 1521 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 1522 if (sbe == NULL) 1523 goto err_sbe; 1524 1525 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1526 le32_to_cpu(be->priv.size)); 1527 1528 dev_dbg(tplg->dev, 1529 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1530 be->hdr.name, be->hdr.access); 1531 1532 kc[i].private_value = (long)sbe; 1533 kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL); 1534 if (kc[i].name == NULL) 1535 goto err_sbe; 1536 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1537 kc[i].access = le32_to_cpu(be->hdr.access); 1538 1539 sbe->max = le32_to_cpu(be->max); 1540 INIT_LIST_HEAD(&sbe->dobj.list); 1541 1542 /* map standard io handlers and check for external handlers */ 1543 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg); 1544 if (err) { 1545 soc_control_err(tplg, &be->hdr, be->hdr.name); 1546 goto err_sbe; 1547 } 1548 1549 /* pass control to driver for optional further init */ 1550 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1551 (struct snd_soc_tplg_ctl_hdr *)be); 1552 if (err < 0) { 1553 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1554 be->hdr.name); 1555 goto err_sbe; 1556 } 1557 } 1558 1559 return kc; 1560 1561 err_sbe: 1562 for (; i >= 0; i--) { 1563 sbe = (struct soc_bytes_ext *)kc[i].private_value; 1564 kfree(sbe); 1565 kfree(kc[i].name); 1566 } 1567 kfree(kc); 1568 1569 return NULL; 1570 } 1571 1572 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1573 struct snd_soc_tplg_dapm_widget *w) 1574 { 1575 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1576 struct snd_soc_dapm_widget template, *widget; 1577 struct snd_soc_tplg_ctl_hdr *control_hdr; 1578 struct snd_soc_card *card = tplg->comp->card; 1579 unsigned int kcontrol_type; 1580 int ret = 0; 1581 1582 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1583 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1584 return -EINVAL; 1585 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1586 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1587 return -EINVAL; 1588 1589 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1590 w->name, w->id); 1591 1592 memset(&template, 0, sizeof(template)); 1593 1594 /* map user to kernel widget ID */ 1595 template.id = get_widget_id(le32_to_cpu(w->id)); 1596 if ((int)template.id < 0) 1597 return template.id; 1598 1599 /* strings are allocated here, but used and freed by the widget */ 1600 template.name = kstrdup(w->name, GFP_KERNEL); 1601 if (!template.name) 1602 return -ENOMEM; 1603 template.sname = kstrdup(w->sname, GFP_KERNEL); 1604 if (!template.sname) { 1605 ret = -ENOMEM; 1606 goto err; 1607 } 1608 template.reg = le32_to_cpu(w->reg); 1609 template.shift = le32_to_cpu(w->shift); 1610 template.mask = le32_to_cpu(w->mask); 1611 template.subseq = le32_to_cpu(w->subseq); 1612 template.on_val = w->invert ? 0 : 1; 1613 template.off_val = w->invert ? 1 : 0; 1614 template.ignore_suspend = le32_to_cpu(w->ignore_suspend); 1615 template.event_flags = le16_to_cpu(w->event_flags); 1616 template.dobj.index = tplg->index; 1617 1618 tplg->pos += 1619 (sizeof(struct snd_soc_tplg_dapm_widget) + 1620 le32_to_cpu(w->priv.size)); 1621 1622 if (w->num_kcontrols == 0) { 1623 kcontrol_type = 0; 1624 template.num_kcontrols = 0; 1625 goto widget; 1626 } 1627 1628 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1629 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n", 1630 w->name, w->num_kcontrols, control_hdr->type); 1631 1632 switch (le32_to_cpu(control_hdr->ops.info)) { 1633 case SND_SOC_TPLG_CTL_VOLSW: 1634 case SND_SOC_TPLG_CTL_STROBE: 1635 case SND_SOC_TPLG_CTL_VOLSW_SX: 1636 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1637 case SND_SOC_TPLG_CTL_RANGE: 1638 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1639 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */ 1640 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1641 template.kcontrol_news = 1642 soc_tplg_dapm_widget_dmixer_create(tplg, 1643 template.num_kcontrols); 1644 if (!template.kcontrol_news) { 1645 ret = -ENOMEM; 1646 goto hdr_err; 1647 } 1648 break; 1649 case SND_SOC_TPLG_CTL_ENUM: 1650 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1651 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1652 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1653 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1654 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */ 1655 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1656 template.kcontrol_news = 1657 soc_tplg_dapm_widget_denum_create(tplg, 1658 template.num_kcontrols); 1659 if (!template.kcontrol_news) { 1660 ret = -ENOMEM; 1661 goto hdr_err; 1662 } 1663 break; 1664 case SND_SOC_TPLG_CTL_BYTES: 1665 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */ 1666 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1667 template.kcontrol_news = 1668 soc_tplg_dapm_widget_dbytes_create(tplg, 1669 template.num_kcontrols); 1670 if (!template.kcontrol_news) { 1671 ret = -ENOMEM; 1672 goto hdr_err; 1673 } 1674 break; 1675 default: 1676 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1677 control_hdr->ops.get, control_hdr->ops.put, 1678 le32_to_cpu(control_hdr->ops.info)); 1679 ret = -EINVAL; 1680 goto hdr_err; 1681 } 1682 1683 widget: 1684 ret = soc_tplg_widget_load(tplg, &template, w); 1685 if (ret < 0) 1686 goto hdr_err; 1687 1688 /* card dapm mutex is held by the core if we are loading topology 1689 * data during sound card init. */ 1690 if (card->instantiated) 1691 widget = snd_soc_dapm_new_control(dapm, &template); 1692 else 1693 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1694 if (IS_ERR(widget)) { 1695 ret = PTR_ERR(widget); 1696 goto hdr_err; 1697 } 1698 1699 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1700 widget->dobj.widget.kcontrol_type = kcontrol_type; 1701 widget->dobj.ops = tplg->ops; 1702 widget->dobj.index = tplg->index; 1703 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1704 1705 ret = soc_tplg_widget_ready(tplg, widget, w); 1706 if (ret < 0) 1707 goto ready_err; 1708 1709 kfree(template.sname); 1710 kfree(template.name); 1711 1712 return 0; 1713 1714 ready_err: 1715 snd_soc_tplg_widget_remove(widget); 1716 snd_soc_dapm_free_widget(widget); 1717 hdr_err: 1718 kfree(template.sname); 1719 err: 1720 kfree(template.name); 1721 return ret; 1722 } 1723 1724 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1725 struct snd_soc_tplg_hdr *hdr) 1726 { 1727 struct snd_soc_tplg_dapm_widget *widget; 1728 int ret, count, i; 1729 1730 count = le32_to_cpu(hdr->count); 1731 1732 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1733 1734 for (i = 0; i < count; i++) { 1735 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1736 if (le32_to_cpu(widget->size) != sizeof(*widget)) { 1737 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1738 return -EINVAL; 1739 } 1740 1741 ret = soc_tplg_dapm_widget_create(tplg, widget); 1742 if (ret < 0) { 1743 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1744 widget->name); 1745 return ret; 1746 } 1747 } 1748 1749 return 0; 1750 } 1751 1752 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1753 { 1754 struct snd_soc_card *card = tplg->comp->card; 1755 int ret; 1756 1757 /* Card might not have been registered at this point. 1758 * If so, just return success. 1759 */ 1760 if (!card || !card->instantiated) { 1761 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1762 " widget card binding deferred\n"); 1763 return 0; 1764 } 1765 1766 ret = snd_soc_dapm_new_widgets(card); 1767 if (ret < 0) 1768 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1769 ret); 1770 1771 return 0; 1772 } 1773 1774 static int set_stream_info(struct snd_soc_pcm_stream *stream, 1775 struct snd_soc_tplg_stream_caps *caps) 1776 { 1777 stream->stream_name = kstrdup(caps->name, GFP_KERNEL); 1778 if (!stream->stream_name) 1779 return -ENOMEM; 1780 1781 stream->channels_min = le32_to_cpu(caps->channels_min); 1782 stream->channels_max = le32_to_cpu(caps->channels_max); 1783 stream->rates = le32_to_cpu(caps->rates); 1784 stream->rate_min = le32_to_cpu(caps->rate_min); 1785 stream->rate_max = le32_to_cpu(caps->rate_max); 1786 stream->formats = le64_to_cpu(caps->formats); 1787 stream->sig_bits = le32_to_cpu(caps->sig_bits); 1788 1789 return 0; 1790 } 1791 1792 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1793 unsigned int flag_mask, unsigned int flags) 1794 { 1795 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1796 dai_drv->symmetric_rates = 1797 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1798 1799 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1800 dai_drv->symmetric_channels = 1801 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ? 1802 1 : 0; 1803 1804 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1805 dai_drv->symmetric_samplebits = 1806 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1807 1 : 0; 1808 } 1809 1810 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1811 struct snd_soc_tplg_pcm *pcm) 1812 { 1813 struct snd_soc_dai_driver *dai_drv; 1814 struct snd_soc_pcm_stream *stream; 1815 struct snd_soc_tplg_stream_caps *caps; 1816 struct snd_soc_dai *dai; 1817 struct snd_soc_dapm_context *dapm = 1818 snd_soc_component_get_dapm(tplg->comp); 1819 int ret; 1820 1821 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1822 if (dai_drv == NULL) 1823 return -ENOMEM; 1824 1825 if (strlen(pcm->dai_name)) { 1826 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL); 1827 if (!dai_drv->name) { 1828 ret = -ENOMEM; 1829 goto err; 1830 } 1831 } 1832 dai_drv->id = le32_to_cpu(pcm->dai_id); 1833 1834 if (pcm->playback) { 1835 stream = &dai_drv->playback; 1836 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1837 ret = set_stream_info(stream, caps); 1838 if (ret < 0) 1839 goto err; 1840 } 1841 1842 if (pcm->capture) { 1843 stream = &dai_drv->capture; 1844 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1845 ret = set_stream_info(stream, caps); 1846 if (ret < 0) 1847 goto err; 1848 } 1849 1850 if (pcm->compress) 1851 dai_drv->compress_new = snd_soc_new_compress; 1852 1853 /* pass control to component driver for optional further init */ 1854 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1855 if (ret < 0) { 1856 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 1857 goto err; 1858 } 1859 1860 dai_drv->dobj.index = tplg->index; 1861 dai_drv->dobj.ops = tplg->ops; 1862 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1863 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1864 1865 /* register the DAI to the component */ 1866 dai = devm_snd_soc_register_dai(tplg->comp->dev, tplg->comp, dai_drv, false); 1867 if (!dai) 1868 return -ENOMEM; 1869 1870 /* Create the DAI widgets here */ 1871 ret = snd_soc_dapm_new_dai_widgets(dapm, dai); 1872 if (ret != 0) { 1873 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret); 1874 return ret; 1875 } 1876 1877 return 0; 1878 1879 err: 1880 kfree(dai_drv->playback.stream_name); 1881 kfree(dai_drv->capture.stream_name); 1882 kfree(dai_drv->name); 1883 kfree(dai_drv); 1884 1885 return ret; 1886 } 1887 1888 static void set_link_flags(struct snd_soc_dai_link *link, 1889 unsigned int flag_mask, unsigned int flags) 1890 { 1891 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1892 link->symmetric_rates = 1893 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1894 1895 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1896 link->symmetric_channels = 1897 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ? 1898 1 : 0; 1899 1900 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1901 link->symmetric_samplebits = 1902 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1903 1 : 0; 1904 1905 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1906 link->ignore_suspend = 1907 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ? 1908 1 : 0; 1909 } 1910 1911 /* create the FE DAI link */ 1912 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1913 struct snd_soc_tplg_pcm *pcm) 1914 { 1915 struct snd_soc_dai_link *link; 1916 struct snd_soc_dai_link_component *dlc; 1917 int ret; 1918 1919 /* link + cpu + codec + platform */ 1920 link = kzalloc(sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1921 if (link == NULL) 1922 return -ENOMEM; 1923 1924 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1925 1926 link->cpus = &dlc[0]; 1927 link->codecs = &dlc[1]; 1928 link->platforms = &dlc[2]; 1929 1930 link->num_cpus = 1; 1931 link->num_codecs = 1; 1932 link->num_platforms = 1; 1933 1934 link->dobj.index = tplg->index; 1935 link->dobj.ops = tplg->ops; 1936 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1937 1938 if (strlen(pcm->pcm_name)) { 1939 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1940 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1941 if (!link->name || !link->stream_name) { 1942 ret = -ENOMEM; 1943 goto err; 1944 } 1945 } 1946 link->id = le32_to_cpu(pcm->pcm_id); 1947 1948 if (strlen(pcm->dai_name)) { 1949 link->cpus->dai_name = kstrdup(pcm->dai_name, GFP_KERNEL); 1950 if (!link->cpus->dai_name) { 1951 ret = -ENOMEM; 1952 goto err; 1953 } 1954 } 1955 1956 link->codecs->name = "snd-soc-dummy"; 1957 link->codecs->dai_name = "snd-soc-dummy-dai"; 1958 1959 link->platforms->name = "snd-soc-dummy"; 1960 1961 /* enable DPCM */ 1962 link->dynamic = 1; 1963 link->dpcm_playback = le32_to_cpu(pcm->playback); 1964 link->dpcm_capture = le32_to_cpu(pcm->capture); 1965 if (pcm->flag_mask) 1966 set_link_flags(link, 1967 le32_to_cpu(pcm->flag_mask), 1968 le32_to_cpu(pcm->flags)); 1969 1970 /* pass control to component driver for optional further init */ 1971 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1972 if (ret < 0) { 1973 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n"); 1974 goto err; 1975 } 1976 1977 ret = snd_soc_add_pcm_runtime(tplg->comp->card, link); 1978 if (ret < 0) { 1979 dev_err(tplg->comp->dev, "ASoC: adding FE link failed\n"); 1980 goto err; 1981 } 1982 1983 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1984 1985 return 0; 1986 err: 1987 kfree(link->name); 1988 kfree(link->stream_name); 1989 kfree(link->cpus->dai_name); 1990 kfree(link); 1991 return ret; 1992 } 1993 1994 /* create a FE DAI and DAI link from the PCM object */ 1995 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1996 struct snd_soc_tplg_pcm *pcm) 1997 { 1998 int ret; 1999 2000 ret = soc_tplg_dai_create(tplg, pcm); 2001 if (ret < 0) 2002 return ret; 2003 2004 return soc_tplg_fe_link_create(tplg, pcm); 2005 } 2006 2007 /* copy stream caps from the old version 4 of source */ 2008 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 2009 struct snd_soc_tplg_stream_caps_v4 *src) 2010 { 2011 dest->size = cpu_to_le32(sizeof(*dest)); 2012 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2013 dest->formats = src->formats; 2014 dest->rates = src->rates; 2015 dest->rate_min = src->rate_min; 2016 dest->rate_max = src->rate_max; 2017 dest->channels_min = src->channels_min; 2018 dest->channels_max = src->channels_max; 2019 dest->periods_min = src->periods_min; 2020 dest->periods_max = src->periods_max; 2021 dest->period_size_min = src->period_size_min; 2022 dest->period_size_max = src->period_size_max; 2023 dest->buffer_size_min = src->buffer_size_min; 2024 dest->buffer_size_max = src->buffer_size_max; 2025 } 2026 2027 /** 2028 * pcm_new_ver - Create the new version of PCM from the old version. 2029 * @tplg: topology context 2030 * @src: older version of pcm as a source 2031 * @pcm: latest version of pcm created from the source 2032 * 2033 * Support from vesion 4. User should free the returned pcm manually. 2034 */ 2035 static int pcm_new_ver(struct soc_tplg *tplg, 2036 struct snd_soc_tplg_pcm *src, 2037 struct snd_soc_tplg_pcm **pcm) 2038 { 2039 struct snd_soc_tplg_pcm *dest; 2040 struct snd_soc_tplg_pcm_v4 *src_v4; 2041 int i; 2042 2043 *pcm = NULL; 2044 2045 if (le32_to_cpu(src->size) != sizeof(*src_v4)) { 2046 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 2047 return -EINVAL; 2048 } 2049 2050 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 2051 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 2052 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2053 if (!dest) 2054 return -ENOMEM; 2055 2056 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2057 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2058 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2059 dest->pcm_id = src_v4->pcm_id; 2060 dest->dai_id = src_v4->dai_id; 2061 dest->playback = src_v4->playback; 2062 dest->capture = src_v4->capture; 2063 dest->compress = src_v4->compress; 2064 dest->num_streams = src_v4->num_streams; 2065 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2066 memcpy(&dest->stream[i], &src_v4->stream[i], 2067 sizeof(struct snd_soc_tplg_stream)); 2068 2069 for (i = 0; i < 2; i++) 2070 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 2071 2072 *pcm = dest; 2073 return 0; 2074 } 2075 2076 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 2077 struct snd_soc_tplg_hdr *hdr) 2078 { 2079 struct snd_soc_tplg_pcm *pcm, *_pcm; 2080 int count; 2081 int size; 2082 int i; 2083 bool abi_match; 2084 int ret; 2085 2086 count = le32_to_cpu(hdr->count); 2087 2088 /* check the element size and count */ 2089 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 2090 size = le32_to_cpu(pcm->size); 2091 if (size > sizeof(struct snd_soc_tplg_pcm) 2092 || size < sizeof(struct snd_soc_tplg_pcm_v4)) { 2093 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 2094 size); 2095 return -EINVAL; 2096 } 2097 2098 if (soc_tplg_check_elem_count(tplg, 2099 size, count, 2100 le32_to_cpu(hdr->payload_size), 2101 "PCM DAI")) { 2102 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 2103 count); 2104 return -EINVAL; 2105 } 2106 2107 for (i = 0; i < count; i++) { 2108 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 2109 size = le32_to_cpu(pcm->size); 2110 2111 /* check ABI version by size, create a new version of pcm 2112 * if abi not match. 2113 */ 2114 if (size == sizeof(*pcm)) { 2115 abi_match = true; 2116 _pcm = pcm; 2117 } else { 2118 abi_match = false; 2119 ret = pcm_new_ver(tplg, pcm, &_pcm); 2120 if (ret < 0) 2121 return ret; 2122 } 2123 2124 /* create the FE DAIs and DAI links */ 2125 ret = soc_tplg_pcm_create(tplg, _pcm); 2126 if (ret < 0) { 2127 if (!abi_match) 2128 kfree(_pcm); 2129 return ret; 2130 } 2131 2132 /* offset by version-specific struct size and 2133 * real priv data size 2134 */ 2135 tplg->pos += size + le32_to_cpu(_pcm->priv.size); 2136 2137 if (!abi_match) 2138 kfree(_pcm); /* free the duplicated one */ 2139 } 2140 2141 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 2142 2143 return 0; 2144 } 2145 2146 /** 2147 * set_link_hw_format - Set the HW audio format of the physical DAI link. 2148 * @link: &snd_soc_dai_link which should be updated 2149 * @cfg: physical link configs. 2150 * 2151 * Topology context contains a list of supported HW formats (configs) and 2152 * a default format ID for the physical link. This function will use this 2153 * default ID to choose the HW format to set the link's DAI format for init. 2154 */ 2155 static void set_link_hw_format(struct snd_soc_dai_link *link, 2156 struct snd_soc_tplg_link_config *cfg) 2157 { 2158 struct snd_soc_tplg_hw_config *hw_config; 2159 unsigned char bclk_master, fsync_master; 2160 unsigned char invert_bclk, invert_fsync; 2161 int i; 2162 2163 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 2164 hw_config = &cfg->hw_config[i]; 2165 if (hw_config->id != cfg->default_hw_config_id) 2166 continue; 2167 2168 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 2169 SND_SOC_DAIFMT_FORMAT_MASK; 2170 2171 /* clock gating */ 2172 switch (hw_config->clock_gated) { 2173 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 2174 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 2175 break; 2176 2177 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 2178 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 2179 break; 2180 2181 default: 2182 /* ignore the value */ 2183 break; 2184 } 2185 2186 /* clock signal polarity */ 2187 invert_bclk = hw_config->invert_bclk; 2188 invert_fsync = hw_config->invert_fsync; 2189 if (!invert_bclk && !invert_fsync) 2190 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 2191 else if (!invert_bclk && invert_fsync) 2192 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 2193 else if (invert_bclk && !invert_fsync) 2194 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 2195 else 2196 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 2197 2198 /* clock masters */ 2199 bclk_master = (hw_config->bclk_master == 2200 SND_SOC_TPLG_BCLK_CM); 2201 fsync_master = (hw_config->fsync_master == 2202 SND_SOC_TPLG_FSYNC_CM); 2203 if (bclk_master && fsync_master) 2204 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; 2205 else if (!bclk_master && fsync_master) 2206 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; 2207 else if (bclk_master && !fsync_master) 2208 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; 2209 else 2210 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; 2211 } 2212 } 2213 2214 /** 2215 * link_new_ver - Create a new physical link config from the old 2216 * version of source. 2217 * @tplg: topology context 2218 * @src: old version of phyical link config as a source 2219 * @link: latest version of physical link config created from the source 2220 * 2221 * Support from vesion 4. User need free the returned link config manually. 2222 */ 2223 static int link_new_ver(struct soc_tplg *tplg, 2224 struct snd_soc_tplg_link_config *src, 2225 struct snd_soc_tplg_link_config **link) 2226 { 2227 struct snd_soc_tplg_link_config *dest; 2228 struct snd_soc_tplg_link_config_v4 *src_v4; 2229 int i; 2230 2231 *link = NULL; 2232 2233 if (le32_to_cpu(src->size) != 2234 sizeof(struct snd_soc_tplg_link_config_v4)) { 2235 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2236 return -EINVAL; 2237 } 2238 2239 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2240 2241 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2242 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2243 if (!dest) 2244 return -ENOMEM; 2245 2246 dest->size = cpu_to_le32(sizeof(*dest)); 2247 dest->id = src_v4->id; 2248 dest->num_streams = src_v4->num_streams; 2249 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2250 memcpy(&dest->stream[i], &src_v4->stream[i], 2251 sizeof(struct snd_soc_tplg_stream)); 2252 2253 *link = dest; 2254 return 0; 2255 } 2256 2257 /** 2258 * snd_soc_find_dai_link - Find a DAI link 2259 * 2260 * @card: soc card 2261 * @id: DAI link ID to match 2262 * @name: DAI link name to match, optional 2263 * @stream_name: DAI link stream name to match, optional 2264 * 2265 * This function will search all existing DAI links of the soc card to 2266 * find the link of the same ID. Since DAI links may not have their 2267 * unique ID, so name and stream name should also match if being 2268 * specified. 2269 * 2270 * Return: pointer of DAI link, or NULL if not found. 2271 */ 2272 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, 2273 int id, const char *name, 2274 const char *stream_name) 2275 { 2276 struct snd_soc_pcm_runtime *rtd; 2277 struct snd_soc_dai_link *link; 2278 2279 for_each_card_rtds(card, rtd) { 2280 link = rtd->dai_link; 2281 2282 if (link->id != id) 2283 continue; 2284 2285 if (name && (!link->name || strcmp(name, link->name))) 2286 continue; 2287 2288 if (stream_name && (!link->stream_name 2289 || strcmp(stream_name, link->stream_name))) 2290 continue; 2291 2292 return link; 2293 } 2294 2295 return NULL; 2296 } 2297 2298 /* Find and configure an existing physical DAI link */ 2299 static int soc_tplg_link_config(struct soc_tplg *tplg, 2300 struct snd_soc_tplg_link_config *cfg) 2301 { 2302 struct snd_soc_dai_link *link; 2303 const char *name, *stream_name; 2304 size_t len; 2305 int ret; 2306 2307 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2308 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2309 return -EINVAL; 2310 else if (len) 2311 name = cfg->name; 2312 else 2313 name = NULL; 2314 2315 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2316 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2317 return -EINVAL; 2318 else if (len) 2319 stream_name = cfg->stream_name; 2320 else 2321 stream_name = NULL; 2322 2323 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 2324 name, stream_name); 2325 if (!link) { 2326 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2327 name, cfg->id); 2328 return -EINVAL; 2329 } 2330 2331 /* hw format */ 2332 if (cfg->num_hw_configs) 2333 set_link_hw_format(link, cfg); 2334 2335 /* flags */ 2336 if (cfg->flag_mask) 2337 set_link_flags(link, 2338 le32_to_cpu(cfg->flag_mask), 2339 le32_to_cpu(cfg->flags)); 2340 2341 /* pass control to component driver for optional further init */ 2342 ret = soc_tplg_dai_link_load(tplg, link, cfg); 2343 if (ret < 0) { 2344 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2345 return ret; 2346 } 2347 2348 /* for unloading it in snd_soc_tplg_component_remove */ 2349 link->dobj.index = tplg->index; 2350 link->dobj.ops = tplg->ops; 2351 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 2352 list_add(&link->dobj.list, &tplg->comp->dobj_list); 2353 2354 return 0; 2355 } 2356 2357 2358 /* Load physical link config elements from the topology context */ 2359 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2360 struct snd_soc_tplg_hdr *hdr) 2361 { 2362 struct snd_soc_tplg_link_config *link, *_link; 2363 int count; 2364 int size; 2365 int i, ret; 2366 bool abi_match; 2367 2368 count = le32_to_cpu(hdr->count); 2369 2370 /* check the element size and count */ 2371 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2372 size = le32_to_cpu(link->size); 2373 if (size > sizeof(struct snd_soc_tplg_link_config) 2374 || size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2375 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2376 size); 2377 return -EINVAL; 2378 } 2379 2380 if (soc_tplg_check_elem_count(tplg, 2381 size, count, 2382 le32_to_cpu(hdr->payload_size), 2383 "physical link config")) { 2384 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2385 count); 2386 return -EINVAL; 2387 } 2388 2389 /* config physical DAI links */ 2390 for (i = 0; i < count; i++) { 2391 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2392 size = le32_to_cpu(link->size); 2393 if (size == sizeof(*link)) { 2394 abi_match = true; 2395 _link = link; 2396 } else { 2397 abi_match = false; 2398 ret = link_new_ver(tplg, link, &_link); 2399 if (ret < 0) 2400 return ret; 2401 } 2402 2403 ret = soc_tplg_link_config(tplg, _link); 2404 if (ret < 0) { 2405 if (!abi_match) 2406 kfree(_link); 2407 return ret; 2408 } 2409 2410 /* offset by version-specific struct size and 2411 * real priv data size 2412 */ 2413 tplg->pos += size + le32_to_cpu(_link->priv.size); 2414 2415 if (!abi_match) 2416 kfree(_link); /* free the duplicated one */ 2417 } 2418 2419 return 0; 2420 } 2421 2422 /** 2423 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2424 * @tplg: topology context 2425 * @d: physical DAI configs. 2426 * 2427 * The physical dai should already be registered by the platform driver. 2428 * The platform driver should specify the DAI name and ID for matching. 2429 */ 2430 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2431 struct snd_soc_tplg_dai *d) 2432 { 2433 struct snd_soc_dai_link_component dai_component; 2434 struct snd_soc_dai *dai; 2435 struct snd_soc_dai_driver *dai_drv; 2436 struct snd_soc_pcm_stream *stream; 2437 struct snd_soc_tplg_stream_caps *caps; 2438 int ret; 2439 2440 memset(&dai_component, 0, sizeof(dai_component)); 2441 2442 dai_component.dai_name = d->dai_name; 2443 dai = snd_soc_find_dai(&dai_component); 2444 if (!dai) { 2445 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2446 d->dai_name); 2447 return -EINVAL; 2448 } 2449 2450 if (le32_to_cpu(d->dai_id) != dai->id) { 2451 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2452 d->dai_name); 2453 return -EINVAL; 2454 } 2455 2456 dai_drv = dai->driver; 2457 if (!dai_drv) 2458 return -EINVAL; 2459 2460 if (d->playback) { 2461 stream = &dai_drv->playback; 2462 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2463 ret = set_stream_info(stream, caps); 2464 if (ret < 0) 2465 goto err; 2466 } 2467 2468 if (d->capture) { 2469 stream = &dai_drv->capture; 2470 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2471 ret = set_stream_info(stream, caps); 2472 if (ret < 0) 2473 goto err; 2474 } 2475 2476 if (d->flag_mask) 2477 set_dai_flags(dai_drv, 2478 le32_to_cpu(d->flag_mask), 2479 le32_to_cpu(d->flags)); 2480 2481 /* pass control to component driver for optional further init */ 2482 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2483 if (ret < 0) { 2484 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 2485 goto err; 2486 } 2487 2488 return 0; 2489 2490 err: 2491 kfree(dai_drv->playback.stream_name); 2492 kfree(dai_drv->capture.stream_name); 2493 return ret; 2494 } 2495 2496 /* load physical DAI elements */ 2497 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2498 struct snd_soc_tplg_hdr *hdr) 2499 { 2500 struct snd_soc_tplg_dai *dai; 2501 int count; 2502 int i, ret; 2503 2504 count = le32_to_cpu(hdr->count); 2505 2506 /* config the existing BE DAIs */ 2507 for (i = 0; i < count; i++) { 2508 dai = (struct snd_soc_tplg_dai *)tplg->pos; 2509 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 2510 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2511 return -EINVAL; 2512 } 2513 2514 ret = soc_tplg_dai_config(tplg, dai); 2515 if (ret < 0) { 2516 dev_err(tplg->dev, "ASoC: failed to configure DAI\n"); 2517 return ret; 2518 } 2519 2520 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 2521 } 2522 2523 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2524 return 0; 2525 } 2526 2527 /** 2528 * manifest_new_ver - Create a new version of manifest from the old version 2529 * of source. 2530 * @tplg: topology context 2531 * @src: old version of manifest as a source 2532 * @manifest: latest version of manifest created from the source 2533 * 2534 * Support from vesion 4. Users need free the returned manifest manually. 2535 */ 2536 static int manifest_new_ver(struct soc_tplg *tplg, 2537 struct snd_soc_tplg_manifest *src, 2538 struct snd_soc_tplg_manifest **manifest) 2539 { 2540 struct snd_soc_tplg_manifest *dest; 2541 struct snd_soc_tplg_manifest_v4 *src_v4; 2542 int size; 2543 2544 *manifest = NULL; 2545 2546 size = le32_to_cpu(src->size); 2547 if (size != sizeof(*src_v4)) { 2548 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", 2549 size); 2550 if (size) 2551 return -EINVAL; 2552 src->size = cpu_to_le32(sizeof(*src_v4)); 2553 } 2554 2555 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2556 2557 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2558 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size), 2559 GFP_KERNEL); 2560 if (!dest) 2561 return -ENOMEM; 2562 2563 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2564 dest->control_elems = src_v4->control_elems; 2565 dest->widget_elems = src_v4->widget_elems; 2566 dest->graph_elems = src_v4->graph_elems; 2567 dest->pcm_elems = src_v4->pcm_elems; 2568 dest->dai_link_elems = src_v4->dai_link_elems; 2569 dest->priv.size = src_v4->priv.size; 2570 if (dest->priv.size) 2571 memcpy(dest->priv.data, src_v4->priv.data, 2572 le32_to_cpu(src_v4->priv.size)); 2573 2574 *manifest = dest; 2575 return 0; 2576 } 2577 2578 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2579 struct snd_soc_tplg_hdr *hdr) 2580 { 2581 struct snd_soc_tplg_manifest *manifest, *_manifest; 2582 bool abi_match; 2583 int ret = 0; 2584 2585 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2586 2587 /* check ABI version by size, create a new manifest if abi not match */ 2588 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) { 2589 abi_match = true; 2590 _manifest = manifest; 2591 } else { 2592 abi_match = false; 2593 ret = manifest_new_ver(tplg, manifest, &_manifest); 2594 if (ret < 0) 2595 return ret; 2596 } 2597 2598 /* pass control to component driver for optional further init */ 2599 if (tplg->ops && tplg->ops->manifest) 2600 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest); 2601 2602 if (!abi_match) /* free the duplicated one */ 2603 kfree(_manifest); 2604 2605 return ret; 2606 } 2607 2608 /* validate header magic, size and type */ 2609 static int soc_valid_header(struct soc_tplg *tplg, 2610 struct snd_soc_tplg_hdr *hdr) 2611 { 2612 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2613 return 0; 2614 2615 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 2616 dev_err(tplg->dev, 2617 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2618 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2619 tplg->fw->size); 2620 return -EINVAL; 2621 } 2622 2623 /* big endian firmware objects not supported atm */ 2624 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) { 2625 dev_err(tplg->dev, 2626 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2627 tplg->pass, hdr->magic, 2628 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2629 return -EINVAL; 2630 } 2631 2632 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2633 dev_err(tplg->dev, 2634 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2635 tplg->pass, hdr->magic, 2636 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2637 return -EINVAL; 2638 } 2639 2640 /* Support ABI from version 4 */ 2641 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2642 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2643 dev_err(tplg->dev, 2644 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2645 tplg->pass, hdr->abi, 2646 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2647 tplg->fw->size); 2648 return -EINVAL; 2649 } 2650 2651 if (hdr->payload_size == 0) { 2652 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2653 soc_tplg_get_hdr_offset(tplg)); 2654 return -EINVAL; 2655 } 2656 2657 return 1; 2658 } 2659 2660 /* check header type and call appropriate handler */ 2661 static int soc_tplg_load_header(struct soc_tplg *tplg, 2662 struct snd_soc_tplg_hdr *hdr) 2663 { 2664 int (*elem_load)(struct soc_tplg *tplg, 2665 struct snd_soc_tplg_hdr *hdr); 2666 unsigned int hdr_pass; 2667 2668 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2669 2670 /* check for matching ID */ 2671 if (le32_to_cpu(hdr->index) != tplg->req_index && 2672 tplg->req_index != SND_SOC_TPLG_INDEX_ALL) 2673 return 0; 2674 2675 tplg->index = le32_to_cpu(hdr->index); 2676 2677 switch (le32_to_cpu(hdr->type)) { 2678 case SND_SOC_TPLG_TYPE_MIXER: 2679 case SND_SOC_TPLG_TYPE_ENUM: 2680 case SND_SOC_TPLG_TYPE_BYTES: 2681 hdr_pass = SOC_TPLG_PASS_MIXER; 2682 elem_load = soc_tplg_kcontrol_elems_load; 2683 break; 2684 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2685 hdr_pass = SOC_TPLG_PASS_GRAPH; 2686 elem_load = soc_tplg_dapm_graph_elems_load; 2687 break; 2688 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2689 hdr_pass = SOC_TPLG_PASS_WIDGET; 2690 elem_load = soc_tplg_dapm_widget_elems_load; 2691 break; 2692 case SND_SOC_TPLG_TYPE_PCM: 2693 hdr_pass = SOC_TPLG_PASS_PCM_DAI; 2694 elem_load = soc_tplg_pcm_elems_load; 2695 break; 2696 case SND_SOC_TPLG_TYPE_DAI: 2697 hdr_pass = SOC_TPLG_PASS_BE_DAI; 2698 elem_load = soc_tplg_dai_elems_load; 2699 break; 2700 case SND_SOC_TPLG_TYPE_DAI_LINK: 2701 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2702 /* physical link configurations */ 2703 hdr_pass = SOC_TPLG_PASS_LINK; 2704 elem_load = soc_tplg_link_elems_load; 2705 break; 2706 case SND_SOC_TPLG_TYPE_MANIFEST: 2707 hdr_pass = SOC_TPLG_PASS_MANIFEST; 2708 elem_load = soc_tplg_manifest_load; 2709 break; 2710 default: 2711 /* bespoke vendor data object */ 2712 hdr_pass = SOC_TPLG_PASS_VENDOR; 2713 elem_load = soc_tplg_vendor_load; 2714 break; 2715 } 2716 2717 if (tplg->pass == hdr_pass) { 2718 dev_dbg(tplg->dev, 2719 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2720 hdr->payload_size, hdr->type, hdr->version, 2721 hdr->vendor_type, tplg->pass); 2722 return elem_load(tplg, hdr); 2723 } 2724 2725 return 0; 2726 } 2727 2728 /* process the topology file headers */ 2729 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2730 { 2731 struct snd_soc_tplg_hdr *hdr; 2732 int ret; 2733 2734 tplg->pass = SOC_TPLG_PASS_START; 2735 2736 /* process the header types from start to end */ 2737 while (tplg->pass <= SOC_TPLG_PASS_END) { 2738 2739 tplg->hdr_pos = tplg->fw->data; 2740 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2741 2742 while (!soc_tplg_is_eof(tplg)) { 2743 2744 /* make sure header is valid before loading */ 2745 ret = soc_valid_header(tplg, hdr); 2746 if (ret < 0) 2747 return ret; 2748 else if (ret == 0) 2749 break; 2750 2751 /* load the header object */ 2752 ret = soc_tplg_load_header(tplg, hdr); 2753 if (ret < 0) 2754 return ret; 2755 2756 /* goto next header */ 2757 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2758 sizeof(struct snd_soc_tplg_hdr); 2759 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2760 } 2761 2762 /* next data type pass */ 2763 tplg->pass++; 2764 } 2765 2766 /* signal DAPM we are complete */ 2767 ret = soc_tplg_dapm_complete(tplg); 2768 if (ret < 0) 2769 dev_err(tplg->dev, 2770 "ASoC: failed to initialise DAPM from Firmware\n"); 2771 2772 return ret; 2773 } 2774 2775 static int soc_tplg_load(struct soc_tplg *tplg) 2776 { 2777 int ret; 2778 2779 ret = soc_tplg_process_headers(tplg); 2780 if (ret == 0) 2781 soc_tplg_complete(tplg); 2782 2783 return ret; 2784 } 2785 2786 /* load audio component topology from "firmware" file */ 2787 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2788 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) 2789 { 2790 struct soc_tplg tplg; 2791 int ret; 2792 2793 /* component needs to exist to keep and reference data while parsing */ 2794 if (!comp) 2795 return -EINVAL; 2796 2797 /* setup parsing context */ 2798 memset(&tplg, 0, sizeof(tplg)); 2799 tplg.fw = fw; 2800 tplg.dev = comp->dev; 2801 tplg.comp = comp; 2802 tplg.ops = ops; 2803 tplg.req_index = id; 2804 tplg.io_ops = ops->io_ops; 2805 tplg.io_ops_count = ops->io_ops_count; 2806 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2807 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2808 2809 ret = soc_tplg_load(&tplg); 2810 /* free the created components if fail to load topology */ 2811 if (ret) 2812 snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL); 2813 2814 return ret; 2815 } 2816 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2817 2818 /* remove this dynamic widget */ 2819 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) 2820 { 2821 /* make sure we are a widget */ 2822 if (w->dobj.type != SND_SOC_DOBJ_WIDGET) 2823 return; 2824 2825 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); 2826 } 2827 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); 2828 2829 /* remove all dynamic widgets from this DAPM context */ 2830 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, 2831 u32 index) 2832 { 2833 struct snd_soc_dapm_widget *w, *next_w; 2834 2835 for_each_card_widgets_safe(dapm->card, w, next_w) { 2836 2837 /* make sure we are a widget with correct context */ 2838 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) 2839 continue; 2840 2841 /* match ID */ 2842 if (w->dobj.index != index && 2843 w->dobj.index != SND_SOC_TPLG_INDEX_ALL) 2844 continue; 2845 /* check and free and dynamic widget kcontrols */ 2846 snd_soc_tplg_widget_remove(w); 2847 snd_soc_dapm_free_widget(w); 2848 } 2849 snd_soc_dapm_reset_cache(dapm); 2850 } 2851 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); 2852 2853 /* remove dynamic controls from the component driver */ 2854 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) 2855 { 2856 struct snd_soc_dobj *dobj, *next_dobj; 2857 int pass = SOC_TPLG_PASS_END; 2858 2859 /* process the header types from end to start */ 2860 while (pass >= SOC_TPLG_PASS_START) { 2861 2862 /* remove mixer controls */ 2863 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2864 list) { 2865 2866 /* match index */ 2867 if (dobj->index != index && 2868 index != SND_SOC_TPLG_INDEX_ALL) 2869 continue; 2870 2871 switch (dobj->type) { 2872 case SND_SOC_DOBJ_MIXER: 2873 remove_mixer(comp, dobj, pass); 2874 break; 2875 case SND_SOC_DOBJ_ENUM: 2876 remove_enum(comp, dobj, pass); 2877 break; 2878 case SND_SOC_DOBJ_BYTES: 2879 remove_bytes(comp, dobj, pass); 2880 break; 2881 case SND_SOC_DOBJ_GRAPH: 2882 remove_route(comp, dobj, pass); 2883 break; 2884 case SND_SOC_DOBJ_WIDGET: 2885 remove_widget(comp, dobj, pass); 2886 break; 2887 case SND_SOC_DOBJ_PCM: 2888 remove_dai(comp, dobj, pass); 2889 break; 2890 case SND_SOC_DOBJ_DAI_LINK: 2891 remove_link(comp, dobj, pass); 2892 break; 2893 case SND_SOC_DOBJ_BACKEND_LINK: 2894 /* 2895 * call link_unload ops if extra 2896 * deinitialization is needed. 2897 */ 2898 remove_backend_link(comp, dobj, pass); 2899 break; 2900 default: 2901 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2902 dobj->type); 2903 break; 2904 } 2905 } 2906 pass--; 2907 } 2908 2909 /* let caller know if FW can be freed when no objects are left */ 2910 return !list_empty(&comp->dobj_list); 2911 } 2912 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2913