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