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 kfree(link->name); 552 kfree(link->stream_name); 553 kfree(link->cpus->dai_name); 554 555 list_del(&dobj->list); 556 snd_soc_remove_dai_link(comp->card, link); 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 (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 int ret; 1804 1805 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1806 if (dai_drv == NULL) 1807 return -ENOMEM; 1808 1809 if (strlen(pcm->dai_name)) 1810 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL); 1811 dai_drv->id = le32_to_cpu(pcm->dai_id); 1812 1813 if (pcm->playback) { 1814 stream = &dai_drv->playback; 1815 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1816 set_stream_info(stream, caps); 1817 } 1818 1819 if (pcm->capture) { 1820 stream = &dai_drv->capture; 1821 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1822 set_stream_info(stream, caps); 1823 } 1824 1825 if (pcm->compress) 1826 dai_drv->compress_new = snd_soc_new_compress; 1827 1828 /* pass control to component driver for optional further init */ 1829 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1830 if (ret < 0) { 1831 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 1832 kfree(dai_drv->playback.stream_name); 1833 kfree(dai_drv->capture.stream_name); 1834 kfree(dai_drv->name); 1835 kfree(dai_drv); 1836 return ret; 1837 } 1838 1839 dai_drv->dobj.index = tplg->index; 1840 dai_drv->dobj.ops = tplg->ops; 1841 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1842 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1843 1844 /* register the DAI to the component */ 1845 return snd_soc_register_dai(tplg->comp, dai_drv); 1846 } 1847 1848 static void set_link_flags(struct snd_soc_dai_link *link, 1849 unsigned int flag_mask, unsigned int flags) 1850 { 1851 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1852 link->symmetric_rates = 1853 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1854 1855 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1856 link->symmetric_channels = 1857 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ? 1858 1 : 0; 1859 1860 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1861 link->symmetric_samplebits = 1862 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1863 1 : 0; 1864 1865 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1866 link->ignore_suspend = 1867 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ? 1868 1 : 0; 1869 } 1870 1871 /* create the FE DAI link */ 1872 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1873 struct snd_soc_tplg_pcm *pcm) 1874 { 1875 struct snd_soc_dai_link *link; 1876 struct snd_soc_dai_link_component *dlc; 1877 int ret; 1878 1879 /* link + cpu + codec + platform */ 1880 link = kzalloc(sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1881 if (link == NULL) 1882 return -ENOMEM; 1883 1884 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1885 1886 link->cpus = &dlc[0]; 1887 link->codecs = &dlc[1]; 1888 link->platforms = &dlc[2]; 1889 1890 link->num_cpus = 1; 1891 link->num_codecs = 1; 1892 link->num_platforms = 1; 1893 1894 if (strlen(pcm->pcm_name)) { 1895 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1896 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1897 } 1898 link->id = le32_to_cpu(pcm->pcm_id); 1899 1900 if (strlen(pcm->dai_name)) 1901 link->cpus->dai_name = kstrdup(pcm->dai_name, GFP_KERNEL); 1902 1903 link->codecs->name = "snd-soc-dummy"; 1904 link->codecs->dai_name = "snd-soc-dummy-dai"; 1905 1906 link->platforms->name = "snd-soc-dummy"; 1907 1908 /* enable DPCM */ 1909 link->dynamic = 1; 1910 link->dpcm_playback = le32_to_cpu(pcm->playback); 1911 link->dpcm_capture = le32_to_cpu(pcm->capture); 1912 if (pcm->flag_mask) 1913 set_link_flags(link, 1914 le32_to_cpu(pcm->flag_mask), 1915 le32_to_cpu(pcm->flags)); 1916 1917 /* pass control to component driver for optional further init */ 1918 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1919 if (ret < 0) { 1920 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n"); 1921 kfree(link->name); 1922 kfree(link->stream_name); 1923 kfree(link->cpus->dai_name); 1924 kfree(link); 1925 return ret; 1926 } 1927 1928 link->dobj.index = tplg->index; 1929 link->dobj.ops = tplg->ops; 1930 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1931 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1932 1933 snd_soc_add_dai_link(tplg->comp->card, link); 1934 return 0; 1935 } 1936 1937 /* create a FE DAI and DAI link from the PCM object */ 1938 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1939 struct snd_soc_tplg_pcm *pcm) 1940 { 1941 int ret; 1942 1943 ret = soc_tplg_dai_create(tplg, pcm); 1944 if (ret < 0) 1945 return ret; 1946 1947 return soc_tplg_fe_link_create(tplg, pcm); 1948 } 1949 1950 /* copy stream caps from the old version 4 of source */ 1951 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 1952 struct snd_soc_tplg_stream_caps_v4 *src) 1953 { 1954 dest->size = cpu_to_le32(sizeof(*dest)); 1955 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1956 dest->formats = src->formats; 1957 dest->rates = src->rates; 1958 dest->rate_min = src->rate_min; 1959 dest->rate_max = src->rate_max; 1960 dest->channels_min = src->channels_min; 1961 dest->channels_max = src->channels_max; 1962 dest->periods_min = src->periods_min; 1963 dest->periods_max = src->periods_max; 1964 dest->period_size_min = src->period_size_min; 1965 dest->period_size_max = src->period_size_max; 1966 dest->buffer_size_min = src->buffer_size_min; 1967 dest->buffer_size_max = src->buffer_size_max; 1968 } 1969 1970 /** 1971 * pcm_new_ver - Create the new version of PCM from the old version. 1972 * @tplg: topology context 1973 * @src: older version of pcm as a source 1974 * @pcm: latest version of pcm created from the source 1975 * 1976 * Support from vesion 4. User should free the returned pcm manually. 1977 */ 1978 static int pcm_new_ver(struct soc_tplg *tplg, 1979 struct snd_soc_tplg_pcm *src, 1980 struct snd_soc_tplg_pcm **pcm) 1981 { 1982 struct snd_soc_tplg_pcm *dest; 1983 struct snd_soc_tplg_pcm_v4 *src_v4; 1984 int i; 1985 1986 *pcm = NULL; 1987 1988 if (le32_to_cpu(src->size) != sizeof(*src_v4)) { 1989 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 1990 return -EINVAL; 1991 } 1992 1993 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 1994 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 1995 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1996 if (!dest) 1997 return -ENOMEM; 1998 1999 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2000 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2001 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2002 dest->pcm_id = src_v4->pcm_id; 2003 dest->dai_id = src_v4->dai_id; 2004 dest->playback = src_v4->playback; 2005 dest->capture = src_v4->capture; 2006 dest->compress = src_v4->compress; 2007 dest->num_streams = src_v4->num_streams; 2008 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2009 memcpy(&dest->stream[i], &src_v4->stream[i], 2010 sizeof(struct snd_soc_tplg_stream)); 2011 2012 for (i = 0; i < 2; i++) 2013 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 2014 2015 *pcm = dest; 2016 return 0; 2017 } 2018 2019 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 2020 struct snd_soc_tplg_hdr *hdr) 2021 { 2022 struct snd_soc_tplg_pcm *pcm, *_pcm; 2023 int count; 2024 int size; 2025 int i; 2026 bool abi_match; 2027 2028 count = le32_to_cpu(hdr->count); 2029 2030 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI) 2031 return 0; 2032 2033 /* check the element size and count */ 2034 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 2035 size = le32_to_cpu(pcm->size); 2036 if (size > sizeof(struct snd_soc_tplg_pcm) 2037 || size < sizeof(struct snd_soc_tplg_pcm_v4)) { 2038 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 2039 size); 2040 return -EINVAL; 2041 } 2042 2043 if (soc_tplg_check_elem_count(tplg, 2044 size, count, 2045 le32_to_cpu(hdr->payload_size), 2046 "PCM DAI")) { 2047 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 2048 count); 2049 return -EINVAL; 2050 } 2051 2052 for (i = 0; i < count; i++) { 2053 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 2054 size = le32_to_cpu(pcm->size); 2055 2056 /* check ABI version by size, create a new version of pcm 2057 * if abi not match. 2058 */ 2059 if (size == sizeof(*pcm)) { 2060 abi_match = true; 2061 _pcm = pcm; 2062 } else { 2063 abi_match = false; 2064 pcm_new_ver(tplg, pcm, &_pcm); 2065 } 2066 2067 /* create the FE DAIs and DAI links */ 2068 soc_tplg_pcm_create(tplg, _pcm); 2069 2070 /* offset by version-specific struct size and 2071 * real priv data size 2072 */ 2073 tplg->pos += size + le32_to_cpu(_pcm->priv.size); 2074 2075 if (!abi_match) 2076 kfree(_pcm); /* free the duplicated one */ 2077 } 2078 2079 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 2080 2081 return 0; 2082 } 2083 2084 /** 2085 * set_link_hw_format - Set the HW audio format of the physical DAI link. 2086 * @link: &snd_soc_dai_link which should be updated 2087 * @cfg: physical link configs. 2088 * 2089 * Topology context contains a list of supported HW formats (configs) and 2090 * a default format ID for the physical link. This function will use this 2091 * default ID to choose the HW format to set the link's DAI format for init. 2092 */ 2093 static void set_link_hw_format(struct snd_soc_dai_link *link, 2094 struct snd_soc_tplg_link_config *cfg) 2095 { 2096 struct snd_soc_tplg_hw_config *hw_config; 2097 unsigned char bclk_master, fsync_master; 2098 unsigned char invert_bclk, invert_fsync; 2099 int i; 2100 2101 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 2102 hw_config = &cfg->hw_config[i]; 2103 if (hw_config->id != cfg->default_hw_config_id) 2104 continue; 2105 2106 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 2107 SND_SOC_DAIFMT_FORMAT_MASK; 2108 2109 /* clock gating */ 2110 switch (hw_config->clock_gated) { 2111 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 2112 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 2113 break; 2114 2115 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 2116 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 2117 break; 2118 2119 default: 2120 /* ignore the value */ 2121 break; 2122 } 2123 2124 /* clock signal polarity */ 2125 invert_bclk = hw_config->invert_bclk; 2126 invert_fsync = hw_config->invert_fsync; 2127 if (!invert_bclk && !invert_fsync) 2128 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 2129 else if (!invert_bclk && invert_fsync) 2130 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 2131 else if (invert_bclk && !invert_fsync) 2132 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 2133 else 2134 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 2135 2136 /* clock masters */ 2137 bclk_master = (hw_config->bclk_master == 2138 SND_SOC_TPLG_BCLK_CM); 2139 fsync_master = (hw_config->fsync_master == 2140 SND_SOC_TPLG_FSYNC_CM); 2141 if (bclk_master && fsync_master) 2142 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; 2143 else if (!bclk_master && fsync_master) 2144 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; 2145 else if (bclk_master && !fsync_master) 2146 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; 2147 else 2148 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; 2149 } 2150 } 2151 2152 /** 2153 * link_new_ver - Create a new physical link config from the old 2154 * version of source. 2155 * @tplg: topology context 2156 * @src: old version of phyical link config as a source 2157 * @link: latest version of physical link config created from the source 2158 * 2159 * Support from vesion 4. User need free the returned link config manually. 2160 */ 2161 static int link_new_ver(struct soc_tplg *tplg, 2162 struct snd_soc_tplg_link_config *src, 2163 struct snd_soc_tplg_link_config **link) 2164 { 2165 struct snd_soc_tplg_link_config *dest; 2166 struct snd_soc_tplg_link_config_v4 *src_v4; 2167 int i; 2168 2169 *link = NULL; 2170 2171 if (le32_to_cpu(src->size) != 2172 sizeof(struct snd_soc_tplg_link_config_v4)) { 2173 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2174 return -EINVAL; 2175 } 2176 2177 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2178 2179 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2180 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2181 if (!dest) 2182 return -ENOMEM; 2183 2184 dest->size = cpu_to_le32(sizeof(*dest)); 2185 dest->id = src_v4->id; 2186 dest->num_streams = src_v4->num_streams; 2187 for (i = 0; i < le32_to_cpu(dest->num_streams); i++) 2188 memcpy(&dest->stream[i], &src_v4->stream[i], 2189 sizeof(struct snd_soc_tplg_stream)); 2190 2191 *link = dest; 2192 return 0; 2193 } 2194 2195 /* Find and configure an existing physical DAI link */ 2196 static int soc_tplg_link_config(struct soc_tplg *tplg, 2197 struct snd_soc_tplg_link_config *cfg) 2198 { 2199 struct snd_soc_dai_link *link; 2200 const char *name, *stream_name; 2201 size_t len; 2202 int ret; 2203 2204 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2205 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2206 return -EINVAL; 2207 else if (len) 2208 name = cfg->name; 2209 else 2210 name = NULL; 2211 2212 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2213 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2214 return -EINVAL; 2215 else if (len) 2216 stream_name = cfg->stream_name; 2217 else 2218 stream_name = NULL; 2219 2220 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 2221 name, stream_name); 2222 if (!link) { 2223 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2224 name, cfg->id); 2225 return -EINVAL; 2226 } 2227 2228 /* hw format */ 2229 if (cfg->num_hw_configs) 2230 set_link_hw_format(link, cfg); 2231 2232 /* flags */ 2233 if (cfg->flag_mask) 2234 set_link_flags(link, 2235 le32_to_cpu(cfg->flag_mask), 2236 le32_to_cpu(cfg->flags)); 2237 2238 /* pass control to component driver for optional further init */ 2239 ret = soc_tplg_dai_link_load(tplg, link, cfg); 2240 if (ret < 0) { 2241 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2242 return ret; 2243 } 2244 2245 /* for unloading it in snd_soc_tplg_component_remove */ 2246 link->dobj.index = tplg->index; 2247 link->dobj.ops = tplg->ops; 2248 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 2249 list_add(&link->dobj.list, &tplg->comp->dobj_list); 2250 2251 return 0; 2252 } 2253 2254 2255 /* Load physical link config elements from the topology context */ 2256 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2257 struct snd_soc_tplg_hdr *hdr) 2258 { 2259 struct snd_soc_tplg_link_config *link, *_link; 2260 int count; 2261 int size; 2262 int i, ret; 2263 bool abi_match; 2264 2265 count = le32_to_cpu(hdr->count); 2266 2267 if (tplg->pass != SOC_TPLG_PASS_LINK) { 2268 tplg->pos += le32_to_cpu(hdr->size) + 2269 le32_to_cpu(hdr->payload_size); 2270 return 0; 2271 }; 2272 2273 /* check the element size and count */ 2274 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2275 size = le32_to_cpu(link->size); 2276 if (size > sizeof(struct snd_soc_tplg_link_config) 2277 || size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2278 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2279 size); 2280 return -EINVAL; 2281 } 2282 2283 if (soc_tplg_check_elem_count(tplg, 2284 size, count, 2285 le32_to_cpu(hdr->payload_size), 2286 "physical link config")) { 2287 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2288 count); 2289 return -EINVAL; 2290 } 2291 2292 /* config physical DAI links */ 2293 for (i = 0; i < count; i++) { 2294 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2295 size = le32_to_cpu(link->size); 2296 if (size == sizeof(*link)) { 2297 abi_match = true; 2298 _link = link; 2299 } else { 2300 abi_match = false; 2301 ret = link_new_ver(tplg, link, &_link); 2302 if (ret < 0) 2303 return ret; 2304 } 2305 2306 ret = soc_tplg_link_config(tplg, _link); 2307 if (ret < 0) 2308 return ret; 2309 2310 /* offset by version-specific struct size and 2311 * real priv data size 2312 */ 2313 tplg->pos += size + le32_to_cpu(_link->priv.size); 2314 2315 if (!abi_match) 2316 kfree(_link); /* free the duplicated one */ 2317 } 2318 2319 return 0; 2320 } 2321 2322 /** 2323 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2324 * @tplg: topology context 2325 * @d: physical DAI configs. 2326 * 2327 * The physical dai should already be registered by the platform driver. 2328 * The platform driver should specify the DAI name and ID for matching. 2329 */ 2330 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2331 struct snd_soc_tplg_dai *d) 2332 { 2333 struct snd_soc_dai_link_component dai_component; 2334 struct snd_soc_dai *dai; 2335 struct snd_soc_dai_driver *dai_drv; 2336 struct snd_soc_pcm_stream *stream; 2337 struct snd_soc_tplg_stream_caps *caps; 2338 int ret; 2339 2340 memset(&dai_component, 0, sizeof(dai_component)); 2341 2342 dai_component.dai_name = d->dai_name; 2343 dai = snd_soc_find_dai(&dai_component); 2344 if (!dai) { 2345 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2346 d->dai_name); 2347 return -EINVAL; 2348 } 2349 2350 if (le32_to_cpu(d->dai_id) != dai->id) { 2351 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2352 d->dai_name); 2353 return -EINVAL; 2354 } 2355 2356 dai_drv = dai->driver; 2357 if (!dai_drv) 2358 return -EINVAL; 2359 2360 if (d->playback) { 2361 stream = &dai_drv->playback; 2362 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2363 set_stream_info(stream, caps); 2364 } 2365 2366 if (d->capture) { 2367 stream = &dai_drv->capture; 2368 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2369 set_stream_info(stream, caps); 2370 } 2371 2372 if (d->flag_mask) 2373 set_dai_flags(dai_drv, 2374 le32_to_cpu(d->flag_mask), 2375 le32_to_cpu(d->flags)); 2376 2377 /* pass control to component driver for optional further init */ 2378 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 2379 if (ret < 0) { 2380 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 2381 return ret; 2382 } 2383 2384 return 0; 2385 } 2386 2387 /* load physical DAI elements */ 2388 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2389 struct snd_soc_tplg_hdr *hdr) 2390 { 2391 struct snd_soc_tplg_dai *dai; 2392 int count; 2393 int i; 2394 2395 count = le32_to_cpu(hdr->count); 2396 2397 if (tplg->pass != SOC_TPLG_PASS_BE_DAI) 2398 return 0; 2399 2400 /* config the existing BE DAIs */ 2401 for (i = 0; i < count; i++) { 2402 dai = (struct snd_soc_tplg_dai *)tplg->pos; 2403 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 2404 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2405 return -EINVAL; 2406 } 2407 2408 soc_tplg_dai_config(tplg, dai); 2409 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 2410 } 2411 2412 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2413 return 0; 2414 } 2415 2416 /** 2417 * manifest_new_ver - Create a new version of manifest from the old version 2418 * of source. 2419 * @tplg: topology context 2420 * @src: old version of manifest as a source 2421 * @manifest: latest version of manifest created from the source 2422 * 2423 * Support from vesion 4. Users need free the returned manifest manually. 2424 */ 2425 static int manifest_new_ver(struct soc_tplg *tplg, 2426 struct snd_soc_tplg_manifest *src, 2427 struct snd_soc_tplg_manifest **manifest) 2428 { 2429 struct snd_soc_tplg_manifest *dest; 2430 struct snd_soc_tplg_manifest_v4 *src_v4; 2431 int size; 2432 2433 *manifest = NULL; 2434 2435 size = le32_to_cpu(src->size); 2436 if (size != sizeof(*src_v4)) { 2437 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n", 2438 size); 2439 if (size) 2440 return -EINVAL; 2441 src->size = cpu_to_le32(sizeof(*src_v4)); 2442 } 2443 2444 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2445 2446 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2447 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size), 2448 GFP_KERNEL); 2449 if (!dest) 2450 return -ENOMEM; 2451 2452 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */ 2453 dest->control_elems = src_v4->control_elems; 2454 dest->widget_elems = src_v4->widget_elems; 2455 dest->graph_elems = src_v4->graph_elems; 2456 dest->pcm_elems = src_v4->pcm_elems; 2457 dest->dai_link_elems = src_v4->dai_link_elems; 2458 dest->priv.size = src_v4->priv.size; 2459 if (dest->priv.size) 2460 memcpy(dest->priv.data, src_v4->priv.data, 2461 le32_to_cpu(src_v4->priv.size)); 2462 2463 *manifest = dest; 2464 return 0; 2465 } 2466 2467 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2468 struct snd_soc_tplg_hdr *hdr) 2469 { 2470 struct snd_soc_tplg_manifest *manifest, *_manifest; 2471 bool abi_match; 2472 int err; 2473 2474 if (tplg->pass != SOC_TPLG_PASS_MANIFEST) 2475 return 0; 2476 2477 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2478 2479 /* check ABI version by size, create a new manifest if abi not match */ 2480 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) { 2481 abi_match = true; 2482 _manifest = manifest; 2483 } else { 2484 abi_match = false; 2485 err = manifest_new_ver(tplg, manifest, &_manifest); 2486 if (err < 0) 2487 return err; 2488 } 2489 2490 /* pass control to component driver for optional further init */ 2491 if (tplg->comp && tplg->ops && tplg->ops->manifest) 2492 return tplg->ops->manifest(tplg->comp, tplg->index, _manifest); 2493 2494 if (!abi_match) /* free the duplicated one */ 2495 kfree(_manifest); 2496 2497 return 0; 2498 } 2499 2500 /* validate header magic, size and type */ 2501 static int soc_valid_header(struct soc_tplg *tplg, 2502 struct snd_soc_tplg_hdr *hdr) 2503 { 2504 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2505 return 0; 2506 2507 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 2508 dev_err(tplg->dev, 2509 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2510 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 2511 tplg->fw->size); 2512 return -EINVAL; 2513 } 2514 2515 /* big endian firmware objects not supported atm */ 2516 if (hdr->magic == SOC_TPLG_MAGIC_BIG_ENDIAN) { 2517 dev_err(tplg->dev, 2518 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2519 tplg->pass, hdr->magic, 2520 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2521 return -EINVAL; 2522 } 2523 2524 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2525 dev_err(tplg->dev, 2526 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2527 tplg->pass, hdr->magic, 2528 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2529 return -EINVAL; 2530 } 2531 2532 /* Support ABI from version 4 */ 2533 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2534 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2535 dev_err(tplg->dev, 2536 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2537 tplg->pass, hdr->abi, 2538 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2539 tplg->fw->size); 2540 return -EINVAL; 2541 } 2542 2543 if (hdr->payload_size == 0) { 2544 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2545 soc_tplg_get_hdr_offset(tplg)); 2546 return -EINVAL; 2547 } 2548 2549 if (tplg->pass == le32_to_cpu(hdr->type)) 2550 dev_dbg(tplg->dev, 2551 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2552 hdr->payload_size, hdr->type, hdr->version, 2553 hdr->vendor_type, tplg->pass); 2554 2555 return 1; 2556 } 2557 2558 /* check header type and call appropriate handler */ 2559 static int soc_tplg_load_header(struct soc_tplg *tplg, 2560 struct snd_soc_tplg_hdr *hdr) 2561 { 2562 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2563 2564 /* check for matching ID */ 2565 if (le32_to_cpu(hdr->index) != tplg->req_index && 2566 tplg->req_index != SND_SOC_TPLG_INDEX_ALL) 2567 return 0; 2568 2569 tplg->index = le32_to_cpu(hdr->index); 2570 2571 switch (le32_to_cpu(hdr->type)) { 2572 case SND_SOC_TPLG_TYPE_MIXER: 2573 case SND_SOC_TPLG_TYPE_ENUM: 2574 case SND_SOC_TPLG_TYPE_BYTES: 2575 return soc_tplg_kcontrol_elems_load(tplg, hdr); 2576 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2577 return soc_tplg_dapm_graph_elems_load(tplg, hdr); 2578 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2579 return soc_tplg_dapm_widget_elems_load(tplg, hdr); 2580 case SND_SOC_TPLG_TYPE_PCM: 2581 return soc_tplg_pcm_elems_load(tplg, hdr); 2582 case SND_SOC_TPLG_TYPE_DAI: 2583 return soc_tplg_dai_elems_load(tplg, hdr); 2584 case SND_SOC_TPLG_TYPE_DAI_LINK: 2585 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2586 /* physical link configurations */ 2587 return soc_tplg_link_elems_load(tplg, hdr); 2588 case SND_SOC_TPLG_TYPE_MANIFEST: 2589 return soc_tplg_manifest_load(tplg, hdr); 2590 default: 2591 /* bespoke vendor data object */ 2592 return soc_tplg_vendor_load(tplg, hdr); 2593 } 2594 2595 return 0; 2596 } 2597 2598 /* process the topology file headers */ 2599 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2600 { 2601 struct snd_soc_tplg_hdr *hdr; 2602 int ret; 2603 2604 tplg->pass = SOC_TPLG_PASS_START; 2605 2606 /* process the header types from start to end */ 2607 while (tplg->pass <= SOC_TPLG_PASS_END) { 2608 2609 tplg->hdr_pos = tplg->fw->data; 2610 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2611 2612 while (!soc_tplg_is_eof(tplg)) { 2613 2614 /* make sure header is valid before loading */ 2615 ret = soc_valid_header(tplg, hdr); 2616 if (ret < 0) 2617 return ret; 2618 else if (ret == 0) 2619 break; 2620 2621 /* load the header object */ 2622 ret = soc_tplg_load_header(tplg, hdr); 2623 if (ret < 0) 2624 return ret; 2625 2626 /* goto next header */ 2627 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2628 sizeof(struct snd_soc_tplg_hdr); 2629 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2630 } 2631 2632 /* next data type pass */ 2633 tplg->pass++; 2634 } 2635 2636 /* signal DAPM we are complete */ 2637 ret = soc_tplg_dapm_complete(tplg); 2638 if (ret < 0) 2639 dev_err(tplg->dev, 2640 "ASoC: failed to initialise DAPM from Firmware\n"); 2641 2642 return ret; 2643 } 2644 2645 static int soc_tplg_load(struct soc_tplg *tplg) 2646 { 2647 int ret; 2648 2649 ret = soc_tplg_process_headers(tplg); 2650 if (ret == 0) 2651 soc_tplg_complete(tplg); 2652 2653 return ret; 2654 } 2655 2656 /* load audio component topology from "firmware" file */ 2657 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2658 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) 2659 { 2660 struct soc_tplg tplg; 2661 int ret; 2662 2663 /* setup parsing context */ 2664 memset(&tplg, 0, sizeof(tplg)); 2665 tplg.fw = fw; 2666 tplg.dev = comp->dev; 2667 tplg.comp = comp; 2668 tplg.ops = ops; 2669 tplg.req_index = id; 2670 tplg.io_ops = ops->io_ops; 2671 tplg.io_ops_count = ops->io_ops_count; 2672 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2673 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2674 2675 ret = soc_tplg_load(&tplg); 2676 /* free the created components if fail to load topology */ 2677 if (ret) 2678 snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL); 2679 2680 return ret; 2681 } 2682 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2683 2684 /* remove this dynamic widget */ 2685 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) 2686 { 2687 /* make sure we are a widget */ 2688 if (w->dobj.type != SND_SOC_DOBJ_WIDGET) 2689 return; 2690 2691 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); 2692 } 2693 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); 2694 2695 /* remove all dynamic widgets from this DAPM context */ 2696 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, 2697 u32 index) 2698 { 2699 struct snd_soc_dapm_widget *w, *next_w; 2700 2701 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { 2702 2703 /* make sure we are a widget with correct context */ 2704 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) 2705 continue; 2706 2707 /* match ID */ 2708 if (w->dobj.index != index && 2709 w->dobj.index != SND_SOC_TPLG_INDEX_ALL) 2710 continue; 2711 /* check and free and dynamic widget kcontrols */ 2712 snd_soc_tplg_widget_remove(w); 2713 snd_soc_dapm_free_widget(w); 2714 } 2715 snd_soc_dapm_reset_cache(dapm); 2716 } 2717 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); 2718 2719 /* remove dynamic controls from the component driver */ 2720 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) 2721 { 2722 struct snd_soc_dobj *dobj, *next_dobj; 2723 int pass = SOC_TPLG_PASS_END; 2724 2725 /* process the header types from end to start */ 2726 while (pass >= SOC_TPLG_PASS_START) { 2727 2728 /* remove mixer controls */ 2729 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2730 list) { 2731 2732 /* match index */ 2733 if (dobj->index != index && 2734 index != SND_SOC_TPLG_INDEX_ALL) 2735 continue; 2736 2737 switch (dobj->type) { 2738 case SND_SOC_DOBJ_MIXER: 2739 remove_mixer(comp, dobj, pass); 2740 break; 2741 case SND_SOC_DOBJ_ENUM: 2742 remove_enum(comp, dobj, pass); 2743 break; 2744 case SND_SOC_DOBJ_BYTES: 2745 remove_bytes(comp, dobj, pass); 2746 break; 2747 case SND_SOC_DOBJ_GRAPH: 2748 remove_route(comp, dobj, pass); 2749 break; 2750 case SND_SOC_DOBJ_WIDGET: 2751 remove_widget(comp, dobj, pass); 2752 break; 2753 case SND_SOC_DOBJ_PCM: 2754 remove_dai(comp, dobj, pass); 2755 break; 2756 case SND_SOC_DOBJ_DAI_LINK: 2757 remove_link(comp, dobj, pass); 2758 break; 2759 case SND_SOC_DOBJ_BACKEND_LINK: 2760 /* 2761 * call link_unload ops if extra 2762 * deinitialization is needed. 2763 */ 2764 remove_backend_link(comp, dobj, pass); 2765 break; 2766 default: 2767 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2768 dobj->type); 2769 break; 2770 } 2771 } 2772 pass--; 2773 } 2774 2775 /* let caller know if FW can be freed when no objects are left */ 2776 return !list_empty(&comp->dobj_list); 2777 } 2778 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2779