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 break; 1266 1267 /* add route, but keep going if some fail */ 1268 snd_soc_dapm_add_routes(dapm, routes[i], 1); 1269 } 1270 1271 /* free memory allocated for all dapm routes in case of error */ 1272 if (ret < 0) 1273 for (i = 0; i < count ; i++) 1274 kfree(routes[i]); 1275 1276 /* 1277 * free pointer to array of dapm routes as this is no longer needed. 1278 * The memory allocated for each dapm route will be freed 1279 * when it is removed in remove_route(). 1280 */ 1281 kfree(routes); 1282 1283 return ret; 1284 } 1285 1286 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create( 1287 struct soc_tplg *tplg, int num_kcontrols) 1288 { 1289 struct snd_kcontrol_new *kc; 1290 struct soc_mixer_control *sm; 1291 struct snd_soc_tplg_mixer_control *mc; 1292 int i, err; 1293 1294 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1295 if (kc == NULL) 1296 return NULL; 1297 1298 for (i = 0; i < num_kcontrols; i++) { 1299 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1300 1301 /* validate kcontrol */ 1302 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1303 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1304 goto err_sm; 1305 1306 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 1307 if (sm == NULL) 1308 goto err_sm; 1309 1310 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 1311 le32_to_cpu(mc->priv.size)); 1312 1313 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n", 1314 mc->hdr.name, i); 1315 1316 kc[i].private_value = (long)sm; 1317 kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL); 1318 if (kc[i].name == NULL) 1319 goto err_sm; 1320 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1321 kc[i].access = le32_to_cpu(mc->hdr.access); 1322 1323 /* we only support FL/FR channel mapping atm */ 1324 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 1325 SNDRV_CHMAP_FL); 1326 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 1327 SNDRV_CHMAP_FR); 1328 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 1329 SNDRV_CHMAP_FL); 1330 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 1331 SNDRV_CHMAP_FR); 1332 1333 sm->max = le32_to_cpu(mc->max); 1334 sm->min = le32_to_cpu(mc->min); 1335 sm->invert = le32_to_cpu(mc->invert); 1336 sm->platform_max = le32_to_cpu(mc->platform_max); 1337 sm->dobj.index = tplg->index; 1338 INIT_LIST_HEAD(&sm->dobj.list); 1339 1340 /* map io handlers */ 1341 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg); 1342 if (err) { 1343 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1344 goto err_sm; 1345 } 1346 1347 /* create any TLV data */ 1348 err = soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr); 1349 if (err < 0) { 1350 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", 1351 mc->hdr.name); 1352 kfree(sm); 1353 continue; 1354 } 1355 1356 /* pass control to driver for optional further init */ 1357 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1358 (struct snd_soc_tplg_ctl_hdr *)mc); 1359 if (err < 0) { 1360 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1361 mc->hdr.name); 1362 soc_tplg_free_tlv(tplg, &kc[i]); 1363 goto err_sm; 1364 } 1365 } 1366 return kc; 1367 1368 err_sm: 1369 for (; i >= 0; i--) { 1370 sm = (struct soc_mixer_control *)kc[i].private_value; 1371 kfree(sm); 1372 kfree(kc[i].name); 1373 } 1374 kfree(kc); 1375 1376 return NULL; 1377 } 1378 1379 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create( 1380 struct soc_tplg *tplg, int num_kcontrols) 1381 { 1382 struct snd_kcontrol_new *kc; 1383 struct snd_soc_tplg_enum_control *ec; 1384 struct soc_enum *se; 1385 int i, err; 1386 1387 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1388 if (kc == NULL) 1389 return NULL; 1390 1391 for (i = 0; i < num_kcontrols; i++) { 1392 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1393 /* validate kcontrol */ 1394 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1395 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1396 goto err_se; 1397 1398 se = kzalloc(sizeof(*se), GFP_KERNEL); 1399 if (se == NULL) 1400 goto err_se; 1401 1402 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1403 le32_to_cpu(ec->priv.size)); 1404 1405 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1406 ec->hdr.name); 1407 1408 kc[i].private_value = (long)se; 1409 kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL); 1410 if (kc[i].name == NULL) 1411 goto err_se; 1412 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1413 kc[i].access = le32_to_cpu(ec->hdr.access); 1414 1415 /* we only support FL/FR channel mapping atm */ 1416 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1417 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1418 SNDRV_CHMAP_FL); 1419 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1420 SNDRV_CHMAP_FR); 1421 1422 se->items = le32_to_cpu(ec->items); 1423 se->mask = le32_to_cpu(ec->mask); 1424 se->dobj.index = tplg->index; 1425 1426 switch (le32_to_cpu(ec->hdr.ops.info)) { 1427 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1428 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1429 err = soc_tplg_denum_create_values(se, ec); 1430 if (err < 0) { 1431 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1432 ec->hdr.name); 1433 goto err_se; 1434 } 1435 /* fall through */ 1436 case SND_SOC_TPLG_CTL_ENUM: 1437 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1438 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1439 err = soc_tplg_denum_create_texts(se, ec); 1440 if (err < 0) { 1441 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1442 ec->hdr.name); 1443 goto err_se; 1444 } 1445 break; 1446 default: 1447 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1448 ec->hdr.ops.info, ec->hdr.name); 1449 goto err_se; 1450 } 1451 1452 /* map io handlers */ 1453 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg); 1454 if (err) { 1455 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1456 goto err_se; 1457 } 1458 1459 /* pass control to driver for optional further init */ 1460 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1461 (struct snd_soc_tplg_ctl_hdr *)ec); 1462 if (err < 0) { 1463 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1464 ec->hdr.name); 1465 goto err_se; 1466 } 1467 } 1468 1469 return kc; 1470 1471 err_se: 1472 for (; i >= 0; i--) { 1473 /* free values and texts */ 1474 se = (struct soc_enum *)kc[i].private_value; 1475 1476 if (se) { 1477 soc_tplg_denum_remove_values(se); 1478 soc_tplg_denum_remove_texts(se); 1479 } 1480 1481 kfree(se); 1482 kfree(kc[i].name); 1483 } 1484 kfree(kc); 1485 1486 return NULL; 1487 } 1488 1489 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create( 1490 struct soc_tplg *tplg, int num_kcontrols) 1491 { 1492 struct snd_soc_tplg_bytes_control *be; 1493 struct soc_bytes_ext *sbe; 1494 struct snd_kcontrol_new *kc; 1495 int i, err; 1496 1497 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1498 if (!kc) 1499 return NULL; 1500 1501 for (i = 0; i < num_kcontrols; i++) { 1502 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1503 1504 /* validate kcontrol */ 1505 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1506 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1507 goto err_sbe; 1508 1509 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 1510 if (sbe == NULL) 1511 goto err_sbe; 1512 1513 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1514 le32_to_cpu(be->priv.size)); 1515 1516 dev_dbg(tplg->dev, 1517 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1518 be->hdr.name, be->hdr.access); 1519 1520 kc[i].private_value = (long)sbe; 1521 kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL); 1522 if (kc[i].name == NULL) 1523 goto err_sbe; 1524 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1525 kc[i].access = le32_to_cpu(be->hdr.access); 1526 1527 sbe->max = le32_to_cpu(be->max); 1528 INIT_LIST_HEAD(&sbe->dobj.list); 1529 1530 /* map standard io handlers and check for external handlers */ 1531 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg); 1532 if (err) { 1533 soc_control_err(tplg, &be->hdr, be->hdr.name); 1534 goto err_sbe; 1535 } 1536 1537 /* pass control to driver for optional further init */ 1538 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1539 (struct snd_soc_tplg_ctl_hdr *)be); 1540 if (err < 0) { 1541 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1542 be->hdr.name); 1543 goto err_sbe; 1544 } 1545 } 1546 1547 return kc; 1548 1549 err_sbe: 1550 for (; i >= 0; i--) { 1551 sbe = (struct soc_bytes_ext *)kc[i].private_value; 1552 kfree(sbe); 1553 kfree(kc[i].name); 1554 } 1555 kfree(kc); 1556 1557 return NULL; 1558 } 1559 1560 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1561 struct snd_soc_tplg_dapm_widget *w) 1562 { 1563 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1564 struct snd_soc_dapm_widget template, *widget; 1565 struct snd_soc_tplg_ctl_hdr *control_hdr; 1566 struct snd_soc_card *card = tplg->comp->card; 1567 unsigned int kcontrol_type; 1568 int ret = 0; 1569 1570 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1571 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1572 return -EINVAL; 1573 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1574 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1575 return -EINVAL; 1576 1577 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1578 w->name, w->id); 1579 1580 memset(&template, 0, sizeof(template)); 1581 1582 /* map user to kernel widget ID */ 1583 template.id = get_widget_id(le32_to_cpu(w->id)); 1584 if ((int)template.id < 0) 1585 return template.id; 1586 1587 /* strings are allocated here, but used and freed by the widget */ 1588 template.name = kstrdup(w->name, GFP_KERNEL); 1589 if (!template.name) 1590 return -ENOMEM; 1591 template.sname = kstrdup(w->sname, GFP_KERNEL); 1592 if (!template.sname) { 1593 ret = -ENOMEM; 1594 goto err; 1595 } 1596 template.reg = le32_to_cpu(w->reg); 1597 template.shift = le32_to_cpu(w->shift); 1598 template.mask = le32_to_cpu(w->mask); 1599 template.subseq = le32_to_cpu(w->subseq); 1600 template.on_val = w->invert ? 0 : 1; 1601 template.off_val = w->invert ? 1 : 0; 1602 template.ignore_suspend = le32_to_cpu(w->ignore_suspend); 1603 template.event_flags = le16_to_cpu(w->event_flags); 1604 template.dobj.index = tplg->index; 1605 1606 tplg->pos += 1607 (sizeof(struct snd_soc_tplg_dapm_widget) + 1608 le32_to_cpu(w->priv.size)); 1609 1610 if (w->num_kcontrols == 0) { 1611 kcontrol_type = 0; 1612 template.num_kcontrols = 0; 1613 goto widget; 1614 } 1615 1616 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1617 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n", 1618 w->name, w->num_kcontrols, control_hdr->type); 1619 1620 switch (le32_to_cpu(control_hdr->ops.info)) { 1621 case SND_SOC_TPLG_CTL_VOLSW: 1622 case SND_SOC_TPLG_CTL_STROBE: 1623 case SND_SOC_TPLG_CTL_VOLSW_SX: 1624 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1625 case SND_SOC_TPLG_CTL_RANGE: 1626 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1627 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */ 1628 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1629 template.kcontrol_news = 1630 soc_tplg_dapm_widget_dmixer_create(tplg, 1631 template.num_kcontrols); 1632 if (!template.kcontrol_news) { 1633 ret = -ENOMEM; 1634 goto hdr_err; 1635 } 1636 break; 1637 case SND_SOC_TPLG_CTL_ENUM: 1638 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1639 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1640 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1641 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1642 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */ 1643 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1644 template.kcontrol_news = 1645 soc_tplg_dapm_widget_denum_create(tplg, 1646 template.num_kcontrols); 1647 if (!template.kcontrol_news) { 1648 ret = -ENOMEM; 1649 goto hdr_err; 1650 } 1651 break; 1652 case SND_SOC_TPLG_CTL_BYTES: 1653 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */ 1654 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1655 template.kcontrol_news = 1656 soc_tplg_dapm_widget_dbytes_create(tplg, 1657 template.num_kcontrols); 1658 if (!template.kcontrol_news) { 1659 ret = -ENOMEM; 1660 goto hdr_err; 1661 } 1662 break; 1663 default: 1664 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1665 control_hdr->ops.get, control_hdr->ops.put, 1666 le32_to_cpu(control_hdr->ops.info)); 1667 ret = -EINVAL; 1668 goto hdr_err; 1669 } 1670 1671 widget: 1672 ret = soc_tplg_widget_load(tplg, &template, w); 1673 if (ret < 0) 1674 goto hdr_err; 1675 1676 /* card dapm mutex is held by the core if we are loading topology 1677 * data during sound card init. */ 1678 if (card->instantiated) 1679 widget = snd_soc_dapm_new_control(dapm, &template); 1680 else 1681 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1682 if (IS_ERR(widget)) { 1683 ret = PTR_ERR(widget); 1684 goto hdr_err; 1685 } 1686 1687 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1688 widget->dobj.widget.kcontrol_type = kcontrol_type; 1689 widget->dobj.ops = tplg->ops; 1690 widget->dobj.index = tplg->index; 1691 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1692 1693 ret = soc_tplg_widget_ready(tplg, widget, w); 1694 if (ret < 0) 1695 goto ready_err; 1696 1697 kfree(template.sname); 1698 kfree(template.name); 1699 1700 return 0; 1701 1702 ready_err: 1703 snd_soc_tplg_widget_remove(widget); 1704 snd_soc_dapm_free_widget(widget); 1705 hdr_err: 1706 kfree(template.sname); 1707 err: 1708 kfree(template.name); 1709 return ret; 1710 } 1711 1712 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1713 struct snd_soc_tplg_hdr *hdr) 1714 { 1715 struct snd_soc_tplg_dapm_widget *widget; 1716 int ret, count, i; 1717 1718 count = le32_to_cpu(hdr->count); 1719 1720 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1721 1722 for (i = 0; i < count; i++) { 1723 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1724 if (le32_to_cpu(widget->size) != sizeof(*widget)) { 1725 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1726 return -EINVAL; 1727 } 1728 1729 ret = soc_tplg_dapm_widget_create(tplg, widget); 1730 if (ret < 0) { 1731 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1732 widget->name); 1733 return ret; 1734 } 1735 } 1736 1737 return 0; 1738 } 1739 1740 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1741 { 1742 struct snd_soc_card *card = tplg->comp->card; 1743 int ret; 1744 1745 /* Card might not have been registered at this point. 1746 * If so, just return success. 1747 */ 1748 if (!card || !card->instantiated) { 1749 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1750 " widget card binding deferred\n"); 1751 return 0; 1752 } 1753 1754 ret = snd_soc_dapm_new_widgets(card); 1755 if (ret < 0) 1756 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1757 ret); 1758 1759 return 0; 1760 } 1761 1762 static int set_stream_info(struct snd_soc_pcm_stream *stream, 1763 struct snd_soc_tplg_stream_caps *caps) 1764 { 1765 stream->stream_name = kstrdup(caps->name, GFP_KERNEL); 1766 if (!stream->stream_name) 1767 return -ENOMEM; 1768 1769 stream->channels_min = le32_to_cpu(caps->channels_min); 1770 stream->channels_max = le32_to_cpu(caps->channels_max); 1771 stream->rates = le32_to_cpu(caps->rates); 1772 stream->rate_min = le32_to_cpu(caps->rate_min); 1773 stream->rate_max = le32_to_cpu(caps->rate_max); 1774 stream->formats = le64_to_cpu(caps->formats); 1775 stream->sig_bits = le32_to_cpu(caps->sig_bits); 1776 1777 return 0; 1778 } 1779 1780 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1781 unsigned int flag_mask, unsigned int flags) 1782 { 1783 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1784 dai_drv->symmetric_rates = 1785 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1786 1787 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1788 dai_drv->symmetric_channels = 1789 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ? 1790 1 : 0; 1791 1792 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1793 dai_drv->symmetric_samplebits = 1794 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1795 1 : 0; 1796 } 1797 1798 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1799 struct snd_soc_tplg_pcm *pcm) 1800 { 1801 struct snd_soc_dai_driver *dai_drv; 1802 struct snd_soc_pcm_stream *stream; 1803 struct snd_soc_tplg_stream_caps *caps; 1804 struct snd_soc_dai *dai; 1805 struct snd_soc_dapm_context *dapm = 1806 snd_soc_component_get_dapm(tplg->comp); 1807 int ret; 1808 1809 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1810 if (dai_drv == NULL) 1811 return -ENOMEM; 1812 1813 if (strlen(pcm->dai_name)) { 1814 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL); 1815 if (!dai_drv->name) { 1816 ret = -ENOMEM; 1817 goto err; 1818 } 1819 } 1820 dai_drv->id = le32_to_cpu(pcm->dai_id); 1821 1822 if (pcm->playback) { 1823 stream = &dai_drv->playback; 1824 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1825 ret = set_stream_info(stream, caps); 1826 if (ret < 0) 1827 goto err; 1828 } 1829 1830 if (pcm->capture) { 1831 stream = &dai_drv->capture; 1832 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1833 ret = set_stream_info(stream, caps); 1834 if (ret < 0) 1835 goto err; 1836 } 1837 1838 if (pcm->compress) 1839 dai_drv->compress_new = snd_soc_new_compress; 1840 1841 /* pass control to component driver for optional further init */ 1842 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1843 if (ret < 0) { 1844 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 1845 goto err; 1846 } 1847 1848 dai_drv->dobj.index = tplg->index; 1849 dai_drv->dobj.ops = tplg->ops; 1850 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1851 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1852 1853 /* register the DAI to the component */ 1854 dai = devm_snd_soc_register_dai(tplg->comp->dev, tplg->comp, dai_drv, false); 1855 if (!dai) 1856 return -ENOMEM; 1857 1858 /* Create the DAI widgets here */ 1859 ret = snd_soc_dapm_new_dai_widgets(dapm, dai); 1860 if (ret != 0) { 1861 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret); 1862 return ret; 1863 } 1864 1865 return 0; 1866 1867 err: 1868 kfree(dai_drv->playback.stream_name); 1869 kfree(dai_drv->capture.stream_name); 1870 kfree(dai_drv->name); 1871 kfree(dai_drv); 1872 1873 return ret; 1874 } 1875 1876 static void set_link_flags(struct snd_soc_dai_link *link, 1877 unsigned int flag_mask, unsigned int flags) 1878 { 1879 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1880 link->symmetric_rates = 1881 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1882 1883 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1884 link->symmetric_channels = 1885 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ? 1886 1 : 0; 1887 1888 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1889 link->symmetric_samplebits = 1890 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1891 1 : 0; 1892 1893 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1894 link->ignore_suspend = 1895 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ? 1896 1 : 0; 1897 } 1898 1899 /* create the FE DAI link */ 1900 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1901 struct snd_soc_tplg_pcm *pcm) 1902 { 1903 struct snd_soc_dai_link *link; 1904 struct snd_soc_dai_link_component *dlc; 1905 int ret; 1906 1907 /* link + cpu + codec + platform */ 1908 link = kzalloc(sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1909 if (link == NULL) 1910 return -ENOMEM; 1911 1912 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1913 1914 link->cpus = &dlc[0]; 1915 link->codecs = &dlc[1]; 1916 link->platforms = &dlc[2]; 1917 1918 link->num_cpus = 1; 1919 link->num_codecs = 1; 1920 link->num_platforms = 1; 1921 1922 link->dobj.index = tplg->index; 1923 link->dobj.ops = tplg->ops; 1924 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1925 1926 if (strlen(pcm->pcm_name)) { 1927 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1928 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1929 if (!link->name || !link->stream_name) { 1930 ret = -ENOMEM; 1931 goto err; 1932 } 1933 } 1934 link->id = le32_to_cpu(pcm->pcm_id); 1935 1936 if (strlen(pcm->dai_name)) { 1937 link->cpus->dai_name = kstrdup(pcm->dai_name, GFP_KERNEL); 1938 if (!link->cpus->dai_name) { 1939 ret = -ENOMEM; 1940 goto err; 1941 } 1942 } 1943 1944 link->codecs->name = "snd-soc-dummy"; 1945 link->codecs->dai_name = "snd-soc-dummy-dai"; 1946 1947 link->platforms->name = "snd-soc-dummy"; 1948 1949 /* enable DPCM */ 1950 link->dynamic = 1; 1951 link->dpcm_playback = le32_to_cpu(pcm->playback); 1952 link->dpcm_capture = le32_to_cpu(pcm->capture); 1953 if (pcm->flag_mask) 1954 set_link_flags(link, 1955 le32_to_cpu(pcm->flag_mask), 1956 le32_to_cpu(pcm->flags)); 1957 1958 /* pass control to component driver for optional further init */ 1959 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1960 if (ret < 0) { 1961 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n"); 1962 goto err; 1963 } 1964 1965 ret = snd_soc_add_pcm_runtime(tplg->comp->card, link); 1966 if (ret < 0) { 1967 dev_err(tplg->comp->dev, "ASoC: adding FE link failed\n"); 1968 goto err; 1969 } 1970 1971 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1972 1973 return 0; 1974 err: 1975 kfree(link->name); 1976 kfree(link->stream_name); 1977 kfree(link->cpus->dai_name); 1978 kfree(link); 1979 return ret; 1980 } 1981 1982 /* create a FE DAI and DAI link from the PCM object */ 1983 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1984 struct snd_soc_tplg_pcm *pcm) 1985 { 1986 int ret; 1987 1988 ret = soc_tplg_dai_create(tplg, pcm); 1989 if (ret < 0) 1990 return ret; 1991 1992 return soc_tplg_fe_link_create(tplg, pcm); 1993 } 1994 1995 /* copy stream caps from the old version 4 of source */ 1996 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 1997 struct snd_soc_tplg_stream_caps_v4 *src) 1998 { 1999 dest->size = cpu_to_le32(sizeof(*dest)); 2000 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2001 dest->formats = src->formats; 2002 dest->rates = src->rates; 2003 dest->rate_min = src->rate_min; 2004 dest->rate_max = src->rate_max; 2005 dest->channels_min = src->channels_min; 2006 dest->channels_max = src->channels_max; 2007 dest->periods_min = src->periods_min; 2008 dest->periods_max = src->periods_max; 2009 dest->period_size_min = src->period_size_min; 2010 dest->period_size_max = src->period_size_max; 2011 dest->buffer_size_min = src->buffer_size_min; 2012 dest->buffer_size_max = src->buffer_size_max; 2013 } 2014 2015 /** 2016 * pcm_new_ver - Create the new version of PCM from the old version. 2017 * @tplg: topology context 2018 * @src: older version of pcm as a source 2019 * @pcm: latest version of pcm created from the source 2020 * 2021 * Support from vesion 4. User should free the returned pcm manually. 2022 */ 2023 static int pcm_new_ver(struct soc_tplg *tplg, 2024 struct snd_soc_tplg_pcm *src, 2025 struct snd_soc_tplg_pcm **pcm) 2026 { 2027 struct snd_soc_tplg_pcm *dest; 2028 struct snd_soc_tplg_pcm_v4 *src_v4; 2029 int i; 2030 2031 *pcm = NULL; 2032 2033 if (le32_to_cpu(src->size) != sizeof(*src_v4)) { 2034 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 2035 return -EINVAL; 2036 } 2037 2038 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 2039 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 2040 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2041 if (!dest) 2042 return -ENOMEM; 2043 2044 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2045 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2046 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2047 dest->pcm_id = src_v4->pcm_id; 2048 dest->dai_id = src_v4->dai_id; 2049 dest->playback = src_v4->playback; 2050 dest->capture = src_v4->capture; 2051 dest->compress = src_v4->compress; 2052 dest->num_streams = src_v4->num_streams; 2053 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2054 memcpy(&dest->stream[i], &src_v4->stream[i], 2055 sizeof(struct snd_soc_tplg_stream)); 2056 2057 for (i = 0; i < 2; i++) 2058 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 2059 2060 *pcm = dest; 2061 return 0; 2062 } 2063 2064 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 2065 struct snd_soc_tplg_hdr *hdr) 2066 { 2067 struct snd_soc_tplg_pcm *pcm, *_pcm; 2068 int count; 2069 int size; 2070 int i; 2071 bool abi_match; 2072 int ret; 2073 2074 count = le32_to_cpu(hdr->count); 2075 2076 /* check the element size and count */ 2077 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 2078 size = le32_to_cpu(pcm->size); 2079 if (size > sizeof(struct snd_soc_tplg_pcm) 2080 || size < sizeof(struct snd_soc_tplg_pcm_v4)) { 2081 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 2082 size); 2083 return -EINVAL; 2084 } 2085 2086 if (soc_tplg_check_elem_count(tplg, 2087 size, count, 2088 le32_to_cpu(hdr->payload_size), 2089 "PCM DAI")) { 2090 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 2091 count); 2092 return -EINVAL; 2093 } 2094 2095 for (i = 0; i < count; i++) { 2096 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 2097 size = le32_to_cpu(pcm->size); 2098 2099 /* check ABI version by size, create a new version of pcm 2100 * if abi not match. 2101 */ 2102 if (size == sizeof(*pcm)) { 2103 abi_match = true; 2104 _pcm = pcm; 2105 } else { 2106 abi_match = false; 2107 ret = pcm_new_ver(tplg, pcm, &_pcm); 2108 if (ret < 0) 2109 return ret; 2110 } 2111 2112 /* create the FE DAIs and DAI links */ 2113 ret = soc_tplg_pcm_create(tplg, _pcm); 2114 if (ret < 0) { 2115 if (!abi_match) 2116 kfree(_pcm); 2117 return ret; 2118 } 2119 2120 /* offset by version-specific struct size and 2121 * real priv data size 2122 */ 2123 tplg->pos += size + le32_to_cpu(_pcm->priv.size); 2124 2125 if (!abi_match) 2126 kfree(_pcm); /* free the duplicated one */ 2127 } 2128 2129 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 2130 2131 return 0; 2132 } 2133 2134 /** 2135 * set_link_hw_format - Set the HW audio format of the physical DAI link. 2136 * @link: &snd_soc_dai_link which should be updated 2137 * @cfg: physical link configs. 2138 * 2139 * Topology context contains a list of supported HW formats (configs) and 2140 * a default format ID for the physical link. This function will use this 2141 * default ID to choose the HW format to set the link's DAI format for init. 2142 */ 2143 static void set_link_hw_format(struct snd_soc_dai_link *link, 2144 struct snd_soc_tplg_link_config *cfg) 2145 { 2146 struct snd_soc_tplg_hw_config *hw_config; 2147 unsigned char bclk_master, fsync_master; 2148 unsigned char invert_bclk, invert_fsync; 2149 int i; 2150 2151 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 2152 hw_config = &cfg->hw_config[i]; 2153 if (hw_config->id != cfg->default_hw_config_id) 2154 continue; 2155 2156 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 2157 SND_SOC_DAIFMT_FORMAT_MASK; 2158 2159 /* clock gating */ 2160 switch (hw_config->clock_gated) { 2161 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 2162 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 2163 break; 2164 2165 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 2166 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 2167 break; 2168 2169 default: 2170 /* ignore the value */ 2171 break; 2172 } 2173 2174 /* clock signal polarity */ 2175 invert_bclk = hw_config->invert_bclk; 2176 invert_fsync = hw_config->invert_fsync; 2177 if (!invert_bclk && !invert_fsync) 2178 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 2179 else if (!invert_bclk && invert_fsync) 2180 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 2181 else if (invert_bclk && !invert_fsync) 2182 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 2183 else 2184 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 2185 2186 /* clock masters */ 2187 bclk_master = (hw_config->bclk_master == 2188 SND_SOC_TPLG_BCLK_CM); 2189 fsync_master = (hw_config->fsync_master == 2190 SND_SOC_TPLG_FSYNC_CM); 2191 if (bclk_master && fsync_master) 2192 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; 2193 else if (!bclk_master && fsync_master) 2194 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; 2195 else if (bclk_master && !fsync_master) 2196 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; 2197 else 2198 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; 2199 } 2200 } 2201 2202 /** 2203 * link_new_ver - Create a new physical link config from the old 2204 * version of source. 2205 * @tplg: topology context 2206 * @src: old version of phyical link config as a source 2207 * @link: latest version of physical link config created from the source 2208 * 2209 * Support from vesion 4. User need free the returned link config manually. 2210 */ 2211 static int link_new_ver(struct soc_tplg *tplg, 2212 struct snd_soc_tplg_link_config *src, 2213 struct snd_soc_tplg_link_config **link) 2214 { 2215 struct snd_soc_tplg_link_config *dest; 2216 struct snd_soc_tplg_link_config_v4 *src_v4; 2217 int i; 2218 2219 *link = NULL; 2220 2221 if (le32_to_cpu(src->size) != 2222 sizeof(struct snd_soc_tplg_link_config_v4)) { 2223 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2224 return -EINVAL; 2225 } 2226 2227 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2228 2229 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2230 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2231 if (!dest) 2232 return -ENOMEM; 2233 2234 dest->size = cpu_to_le32(sizeof(*dest)); 2235 dest->id = src_v4->id; 2236 dest->num_streams = src_v4->num_streams; 2237 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2238 memcpy(&dest->stream[i], &src_v4->stream[i], 2239 sizeof(struct snd_soc_tplg_stream)); 2240 2241 *link = dest; 2242 return 0; 2243 } 2244 2245 /** 2246 * snd_soc_find_dai_link - Find a DAI link 2247 * 2248 * @card: soc card 2249 * @id: DAI link ID to match 2250 * @name: DAI link name to match, optional 2251 * @stream_name: DAI link stream name to match, optional 2252 * 2253 * This function will search all existing DAI links of the soc card to 2254 * find the link of the same ID. Since DAI links may not have their 2255 * unique ID, so name and stream name should also match if being 2256 * specified. 2257 * 2258 * Return: pointer of DAI link, or NULL if not found. 2259 */ 2260 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, 2261 int id, const char *name, 2262 const char *stream_name) 2263 { 2264 struct snd_soc_pcm_runtime *rtd; 2265 struct snd_soc_dai_link *link; 2266 2267 for_each_card_rtds(card, rtd) { 2268 link = rtd->dai_link; 2269 2270 if (link->id != id) 2271 continue; 2272 2273 if (name && (!link->name || strcmp(name, link->name))) 2274 continue; 2275 2276 if (stream_name && (!link->stream_name 2277 || strcmp(stream_name, link->stream_name))) 2278 continue; 2279 2280 return link; 2281 } 2282 2283 return NULL; 2284 } 2285 2286 /* Find and configure an existing physical DAI link */ 2287 static int soc_tplg_link_config(struct soc_tplg *tplg, 2288 struct snd_soc_tplg_link_config *cfg) 2289 { 2290 struct snd_soc_dai_link *link; 2291 const char *name, *stream_name; 2292 size_t len; 2293 int ret; 2294 2295 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2296 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2297 return -EINVAL; 2298 else if (len) 2299 name = cfg->name; 2300 else 2301 name = NULL; 2302 2303 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2304 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2305 return -EINVAL; 2306 else if (len) 2307 stream_name = cfg->stream_name; 2308 else 2309 stream_name = NULL; 2310 2311 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 2312 name, stream_name); 2313 if (!link) { 2314 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2315 name, cfg->id); 2316 return -EINVAL; 2317 } 2318 2319 /* hw format */ 2320 if (cfg->num_hw_configs) 2321 set_link_hw_format(link, cfg); 2322 2323 /* flags */ 2324 if (cfg->flag_mask) 2325 set_link_flags(link, 2326 le32_to_cpu(cfg->flag_mask), 2327 le32_to_cpu(cfg->flags)); 2328 2329 /* pass control to component driver for optional further init */ 2330 ret = soc_tplg_dai_link_load(tplg, link, cfg); 2331 if (ret < 0) { 2332 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2333 return ret; 2334 } 2335 2336 /* for unloading it in snd_soc_tplg_component_remove */ 2337 link->dobj.index = tplg->index; 2338 link->dobj.ops = tplg->ops; 2339 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 2340 list_add(&link->dobj.list, &tplg->comp->dobj_list); 2341 2342 return 0; 2343 } 2344 2345 2346 /* Load physical link config elements from the topology context */ 2347 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2348 struct snd_soc_tplg_hdr *hdr) 2349 { 2350 struct snd_soc_tplg_link_config *link, *_link; 2351 int count; 2352 int size; 2353 int i, ret; 2354 bool abi_match; 2355 2356 count = le32_to_cpu(hdr->count); 2357 2358 /* check the element size and count */ 2359 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2360 size = le32_to_cpu(link->size); 2361 if (size > sizeof(struct snd_soc_tplg_link_config) 2362 || size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2363 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2364 size); 2365 return -EINVAL; 2366 } 2367 2368 if (soc_tplg_check_elem_count(tplg, 2369 size, count, 2370 le32_to_cpu(hdr->payload_size), 2371 "physical link config")) { 2372 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2373 count); 2374 return -EINVAL; 2375 } 2376 2377 /* config physical DAI links */ 2378 for (i = 0; i < count; i++) { 2379 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2380 size = le32_to_cpu(link->size); 2381 if (size == sizeof(*link)) { 2382 abi_match = true; 2383 _link = link; 2384 } else { 2385 abi_match = false; 2386 ret = link_new_ver(tplg, link, &_link); 2387 if (ret < 0) 2388 return ret; 2389 } 2390 2391 ret = soc_tplg_link_config(tplg, _link); 2392 if (ret < 0) { 2393 if (!abi_match) 2394 kfree(_link); 2395 return ret; 2396 } 2397 2398 /* offset by version-specific struct size and 2399 * real priv data size 2400 */ 2401 tplg->pos += size + le32_to_cpu(_link->priv.size); 2402 2403 if (!abi_match) 2404 kfree(_link); /* free the duplicated one */ 2405 } 2406 2407 return 0; 2408 } 2409 2410 /** 2411 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2412 * @tplg: topology context 2413 * @d: physical DAI configs. 2414 * 2415 * The physical dai should already be registered by the platform driver. 2416 * The platform driver should specify the DAI name and ID for matching. 2417 */ 2418 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2419 struct snd_soc_tplg_dai *d) 2420 { 2421 struct snd_soc_dai_link_component dai_component; 2422 struct snd_soc_dai *dai; 2423 struct snd_soc_dai_driver *dai_drv; 2424 struct snd_soc_pcm_stream *stream; 2425 struct snd_soc_tplg_stream_caps *caps; 2426 int ret; 2427 2428 memset(&dai_component, 0, sizeof(dai_component)); 2429 2430 dai_component.dai_name = d->dai_name; 2431 dai = snd_soc_find_dai(&dai_component); 2432 if (!dai) { 2433 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2434 d->dai_name); 2435 return -EINVAL; 2436 } 2437 2438 if (le32_to_cpu(d->dai_id) != dai->id) { 2439 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2440 d->dai_name); 2441 return -EINVAL; 2442 } 2443 2444 dai_drv = dai->driver; 2445 if (!dai_drv) 2446 return -EINVAL; 2447 2448 if (d->playback) { 2449 stream = &dai_drv->playback; 2450 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2451 ret = set_stream_info(stream, caps); 2452 if (ret < 0) 2453 goto err; 2454 } 2455 2456 if (d->capture) { 2457 stream = &dai_drv->capture; 2458 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2459 ret = set_stream_info(stream, caps); 2460 if (ret < 0) 2461 goto err; 2462 } 2463 2464 if (d->flag_mask) 2465 set_dai_flags(dai_drv, 2466 le32_to_cpu(d->flag_mask), 2467 le32_to_cpu(d->flags)); 2468 2469 /* pass control to component driver for optional further init */ 2470 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2471 if (ret < 0) { 2472 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 2473 goto err; 2474 } 2475 2476 return 0; 2477 2478 err: 2479 kfree(dai_drv->playback.stream_name); 2480 kfree(dai_drv->capture.stream_name); 2481 return ret; 2482 } 2483 2484 /* load physical DAI elements */ 2485 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2486 struct snd_soc_tplg_hdr *hdr) 2487 { 2488 struct snd_soc_tplg_dai *dai; 2489 int count; 2490 int i, ret; 2491 2492 count = le32_to_cpu(hdr->count); 2493 2494 /* config the existing BE DAIs */ 2495 for (i = 0; i < count; i++) { 2496 dai = (struct snd_soc_tplg_dai *)tplg->pos; 2497 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 2498 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2499 return -EINVAL; 2500 } 2501 2502 ret = soc_tplg_dai_config(tplg, dai); 2503 if (ret < 0) { 2504 dev_err(tplg->dev, "ASoC: failed to configure DAI\n"); 2505 return ret; 2506 } 2507 2508 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 2509 } 2510 2511 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2512 return 0; 2513 } 2514 2515 /** 2516 * manifest_new_ver - Create a new version of manifest from the old version 2517 * of source. 2518 * @tplg: topology context 2519 * @src: old version of manifest as a source 2520 * @manifest: latest version of manifest created from the source 2521 * 2522 * Support from vesion 4. Users need free the returned manifest manually. 2523 */ 2524 static int manifest_new_ver(struct soc_tplg *tplg, 2525 struct snd_soc_tplg_manifest *src, 2526 struct snd_soc_tplg_manifest **manifest) 2527 { 2528 struct snd_soc_tplg_manifest *dest; 2529 struct snd_soc_tplg_manifest_v4 *src_v4; 2530 int size; 2531 2532 *manifest = NULL; 2533 2534 size = le32_to_cpu(src->size); 2535 if (size != sizeof(*src_v4)) { 2536 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", 2537 size); 2538 if (size) 2539 return -EINVAL; 2540 src->size = cpu_to_le32(sizeof(*src_v4)); 2541 } 2542 2543 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2544 2545 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2546 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size), 2547 GFP_KERNEL); 2548 if (!dest) 2549 return -ENOMEM; 2550 2551 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2552 dest->control_elems = src_v4->control_elems; 2553 dest->widget_elems = src_v4->widget_elems; 2554 dest->graph_elems = src_v4->graph_elems; 2555 dest->pcm_elems = src_v4->pcm_elems; 2556 dest->dai_link_elems = src_v4->dai_link_elems; 2557 dest->priv.size = src_v4->priv.size; 2558 if (dest->priv.size) 2559 memcpy(dest->priv.data, src_v4->priv.data, 2560 le32_to_cpu(src_v4->priv.size)); 2561 2562 *manifest = dest; 2563 return 0; 2564 } 2565 2566 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2567 struct snd_soc_tplg_hdr *hdr) 2568 { 2569 struct snd_soc_tplg_manifest *manifest, *_manifest; 2570 bool abi_match; 2571 int ret = 0; 2572 2573 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2574 2575 /* check ABI version by size, create a new manifest if abi not match */ 2576 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) { 2577 abi_match = true; 2578 _manifest = manifest; 2579 } else { 2580 abi_match = false; 2581 ret = manifest_new_ver(tplg, manifest, &_manifest); 2582 if (ret < 0) 2583 return ret; 2584 } 2585 2586 /* pass control to component driver for optional further init */ 2587 if (tplg->ops && tplg->ops->manifest) 2588 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest); 2589 2590 if (!abi_match) /* free the duplicated one */ 2591 kfree(_manifest); 2592 2593 return ret; 2594 } 2595 2596 /* validate header magic, size and type */ 2597 static int soc_valid_header(struct soc_tplg *tplg, 2598 struct snd_soc_tplg_hdr *hdr) 2599 { 2600 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2601 return 0; 2602 2603 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 2604 dev_err(tplg->dev, 2605 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2606 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2607 tplg->fw->size); 2608 return -EINVAL; 2609 } 2610 2611 /* big endian firmware objects not supported atm */ 2612 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) { 2613 dev_err(tplg->dev, 2614 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2615 tplg->pass, hdr->magic, 2616 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2617 return -EINVAL; 2618 } 2619 2620 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2621 dev_err(tplg->dev, 2622 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2623 tplg->pass, hdr->magic, 2624 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2625 return -EINVAL; 2626 } 2627 2628 /* Support ABI from version 4 */ 2629 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2630 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2631 dev_err(tplg->dev, 2632 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2633 tplg->pass, hdr->abi, 2634 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2635 tplg->fw->size); 2636 return -EINVAL; 2637 } 2638 2639 if (hdr->payload_size == 0) { 2640 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2641 soc_tplg_get_hdr_offset(tplg)); 2642 return -EINVAL; 2643 } 2644 2645 return 1; 2646 } 2647 2648 /* check header type and call appropriate handler */ 2649 static int soc_tplg_load_header(struct soc_tplg *tplg, 2650 struct snd_soc_tplg_hdr *hdr) 2651 { 2652 int (*elem_load)(struct soc_tplg *tplg, 2653 struct snd_soc_tplg_hdr *hdr); 2654 unsigned int hdr_pass; 2655 2656 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2657 2658 /* check for matching ID */ 2659 if (le32_to_cpu(hdr->index) != tplg->req_index && 2660 tplg->req_index != SND_SOC_TPLG_INDEX_ALL) 2661 return 0; 2662 2663 tplg->index = le32_to_cpu(hdr->index); 2664 2665 switch (le32_to_cpu(hdr->type)) { 2666 case SND_SOC_TPLG_TYPE_MIXER: 2667 case SND_SOC_TPLG_TYPE_ENUM: 2668 case SND_SOC_TPLG_TYPE_BYTES: 2669 hdr_pass = SOC_TPLG_PASS_MIXER; 2670 elem_load = soc_tplg_kcontrol_elems_load; 2671 break; 2672 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2673 hdr_pass = SOC_TPLG_PASS_GRAPH; 2674 elem_load = soc_tplg_dapm_graph_elems_load; 2675 break; 2676 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2677 hdr_pass = SOC_TPLG_PASS_WIDGET; 2678 elem_load = soc_tplg_dapm_widget_elems_load; 2679 break; 2680 case SND_SOC_TPLG_TYPE_PCM: 2681 hdr_pass = SOC_TPLG_PASS_PCM_DAI; 2682 elem_load = soc_tplg_pcm_elems_load; 2683 break; 2684 case SND_SOC_TPLG_TYPE_DAI: 2685 hdr_pass = SOC_TPLG_PASS_BE_DAI; 2686 elem_load = soc_tplg_dai_elems_load; 2687 break; 2688 case SND_SOC_TPLG_TYPE_DAI_LINK: 2689 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2690 /* physical link configurations */ 2691 hdr_pass = SOC_TPLG_PASS_LINK; 2692 elem_load = soc_tplg_link_elems_load; 2693 break; 2694 case SND_SOC_TPLG_TYPE_MANIFEST: 2695 hdr_pass = SOC_TPLG_PASS_MANIFEST; 2696 elem_load = soc_tplg_manifest_load; 2697 break; 2698 default: 2699 /* bespoke vendor data object */ 2700 hdr_pass = SOC_TPLG_PASS_VENDOR; 2701 elem_load = soc_tplg_vendor_load; 2702 break; 2703 } 2704 2705 if (tplg->pass == hdr_pass) { 2706 dev_dbg(tplg->dev, 2707 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2708 hdr->payload_size, hdr->type, hdr->version, 2709 hdr->vendor_type, tplg->pass); 2710 return elem_load(tplg, hdr); 2711 } 2712 2713 return 0; 2714 } 2715 2716 /* process the topology file headers */ 2717 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2718 { 2719 struct snd_soc_tplg_hdr *hdr; 2720 int ret; 2721 2722 tplg->pass = SOC_TPLG_PASS_START; 2723 2724 /* process the header types from start to end */ 2725 while (tplg->pass <= SOC_TPLG_PASS_END) { 2726 2727 tplg->hdr_pos = tplg->fw->data; 2728 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2729 2730 while (!soc_tplg_is_eof(tplg)) { 2731 2732 /* make sure header is valid before loading */ 2733 ret = soc_valid_header(tplg, hdr); 2734 if (ret < 0) 2735 return ret; 2736 else if (ret == 0) 2737 break; 2738 2739 /* load the header object */ 2740 ret = soc_tplg_load_header(tplg, hdr); 2741 if (ret < 0) 2742 return ret; 2743 2744 /* goto next header */ 2745 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2746 sizeof(struct snd_soc_tplg_hdr); 2747 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2748 } 2749 2750 /* next data type pass */ 2751 tplg->pass++; 2752 } 2753 2754 /* signal DAPM we are complete */ 2755 ret = soc_tplg_dapm_complete(tplg); 2756 if (ret < 0) 2757 dev_err(tplg->dev, 2758 "ASoC: failed to initialise DAPM from Firmware\n"); 2759 2760 return ret; 2761 } 2762 2763 static int soc_tplg_load(struct soc_tplg *tplg) 2764 { 2765 int ret; 2766 2767 ret = soc_tplg_process_headers(tplg); 2768 if (ret == 0) 2769 soc_tplg_complete(tplg); 2770 2771 return ret; 2772 } 2773 2774 /* load audio component topology from "firmware" file */ 2775 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2776 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) 2777 { 2778 struct soc_tplg tplg; 2779 int ret; 2780 2781 /* component needs to exist to keep and reference data while parsing */ 2782 if (!comp) 2783 return -EINVAL; 2784 2785 /* setup parsing context */ 2786 memset(&tplg, 0, sizeof(tplg)); 2787 tplg.fw = fw; 2788 tplg.dev = comp->dev; 2789 tplg.comp = comp; 2790 tplg.ops = ops; 2791 tplg.req_index = id; 2792 tplg.io_ops = ops->io_ops; 2793 tplg.io_ops_count = ops->io_ops_count; 2794 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2795 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2796 2797 ret = soc_tplg_load(&tplg); 2798 /* free the created components if fail to load topology */ 2799 if (ret) 2800 snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL); 2801 2802 return ret; 2803 } 2804 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2805 2806 /* remove this dynamic widget */ 2807 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) 2808 { 2809 /* make sure we are a widget */ 2810 if (w->dobj.type != SND_SOC_DOBJ_WIDGET) 2811 return; 2812 2813 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); 2814 } 2815 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); 2816 2817 /* remove all dynamic widgets from this DAPM context */ 2818 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, 2819 u32 index) 2820 { 2821 struct snd_soc_dapm_widget *w, *next_w; 2822 2823 for_each_card_widgets_safe(dapm->card, w, next_w) { 2824 2825 /* make sure we are a widget with correct context */ 2826 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) 2827 continue; 2828 2829 /* match ID */ 2830 if (w->dobj.index != index && 2831 w->dobj.index != SND_SOC_TPLG_INDEX_ALL) 2832 continue; 2833 /* check and free and dynamic widget kcontrols */ 2834 snd_soc_tplg_widget_remove(w); 2835 snd_soc_dapm_free_widget(w); 2836 } 2837 snd_soc_dapm_reset_cache(dapm); 2838 } 2839 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); 2840 2841 /* remove dynamic controls from the component driver */ 2842 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) 2843 { 2844 struct snd_soc_dobj *dobj, *next_dobj; 2845 int pass = SOC_TPLG_PASS_END; 2846 2847 /* process the header types from end to start */ 2848 while (pass >= SOC_TPLG_PASS_START) { 2849 2850 /* remove mixer controls */ 2851 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2852 list) { 2853 2854 /* match index */ 2855 if (dobj->index != index && 2856 index != SND_SOC_TPLG_INDEX_ALL) 2857 continue; 2858 2859 switch (dobj->type) { 2860 case SND_SOC_DOBJ_MIXER: 2861 remove_mixer(comp, dobj, pass); 2862 break; 2863 case SND_SOC_DOBJ_ENUM: 2864 remove_enum(comp, dobj, pass); 2865 break; 2866 case SND_SOC_DOBJ_BYTES: 2867 remove_bytes(comp, dobj, pass); 2868 break; 2869 case SND_SOC_DOBJ_GRAPH: 2870 remove_route(comp, dobj, pass); 2871 break; 2872 case SND_SOC_DOBJ_WIDGET: 2873 remove_widget(comp, dobj, pass); 2874 break; 2875 case SND_SOC_DOBJ_PCM: 2876 remove_dai(comp, dobj, pass); 2877 break; 2878 case SND_SOC_DOBJ_DAI_LINK: 2879 remove_link(comp, dobj, pass); 2880 break; 2881 case SND_SOC_DOBJ_BACKEND_LINK: 2882 /* 2883 * call link_unload ops if extra 2884 * deinitialization is needed. 2885 */ 2886 remove_backend_link(comp, dobj, pass); 2887 break; 2888 default: 2889 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2890 dobj->type); 2891 break; 2892 } 2893 } 2894 pass--; 2895 } 2896 2897 /* let caller know if FW can be freed when no objects are left */ 2898 return !list_empty(&comp->dobj_list); 2899 } 2900 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2901