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