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