1 /* 2 * soc-topology.c -- ALSA SoC Topology 3 * 4 * Copyright (C) 2012 Texas Instruments Inc. 5 * Copyright (C) 2015 Intel Corporation. 6 * 7 * Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com> 8 * K, Mythri P <mythri.p.k@intel.com> 9 * Prusty, Subhransu S <subhransu.s.prusty@intel.com> 10 * B, Jayachandran <jayachandran.b@intel.com> 11 * Abdullah, Omair M <omair.m.abdullah@intel.com> 12 * Jin, Yao <yao.jin@intel.com> 13 * Lin, Mengdong <mengdong.lin@intel.com> 14 * 15 * This program is free software; you can redistribute it and/or modify it 16 * under the terms of the GNU General Public License as published by the 17 * Free Software Foundation; either version 2 of the License, or (at your 18 * option) any later version. 19 * 20 * Add support to read audio firmware topology alongside firmware text. The 21 * topology data can contain kcontrols, DAPM graphs, widgets, DAIs, DAI links, 22 * equalizers, firmware, coefficients etc. 23 * 24 * This file only manages the core ALSA and ASoC components, all other bespoke 25 * firmware topology data is passed to component drivers for bespoke handling. 26 */ 27 28 #include <linux/kernel.h> 29 #include <linux/export.h> 30 #include <linux/list.h> 31 #include <linux/firmware.h> 32 #include <linux/slab.h> 33 #include <sound/soc.h> 34 #include <sound/soc-dapm.h> 35 #include <sound/soc-topology.h> 36 #include <sound/tlv.h> 37 38 /* 39 * We make several passes over the data (since it wont necessarily be ordered) 40 * and process objects in the following order. This guarantees the component 41 * drivers will be ready with any vendor data before the mixers and DAPM objects 42 * are loaded (that may make use of the vendor data). 43 */ 44 #define SOC_TPLG_PASS_MANIFEST 0 45 #define SOC_TPLG_PASS_VENDOR 1 46 #define SOC_TPLG_PASS_MIXER 2 47 #define SOC_TPLG_PASS_WIDGET 3 48 #define SOC_TPLG_PASS_PCM_DAI 4 49 #define SOC_TPLG_PASS_GRAPH 5 50 #define SOC_TPLG_PASS_PINS 6 51 #define SOC_TPLG_PASS_BE_DAI 7 52 #define SOC_TPLG_PASS_LINK 8 53 54 #define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST 55 #define SOC_TPLG_PASS_END SOC_TPLG_PASS_LINK 56 57 /* 58 * Old version of ABI structs, supported for backward compatibility. 59 */ 60 61 /* Manifest v4 */ 62 struct snd_soc_tplg_manifest_v4 { 63 __le32 size; /* in bytes of this structure */ 64 __le32 control_elems; /* number of control elements */ 65 __le32 widget_elems; /* number of widget elements */ 66 __le32 graph_elems; /* number of graph elements */ 67 __le32 pcm_elems; /* number of PCM elements */ 68 __le32 dai_link_elems; /* number of DAI link elements */ 69 struct snd_soc_tplg_private priv; 70 } __packed; 71 72 /* Stream Capabilities v4 */ 73 struct snd_soc_tplg_stream_caps_v4 { 74 __le32 size; /* in bytes of this structure */ 75 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 76 __le64 formats; /* supported formats SNDRV_PCM_FMTBIT_* */ 77 __le32 rates; /* supported rates SNDRV_PCM_RATE_* */ 78 __le32 rate_min; /* min rate */ 79 __le32 rate_max; /* max rate */ 80 __le32 channels_min; /* min channels */ 81 __le32 channels_max; /* max channels */ 82 __le32 periods_min; /* min number of periods */ 83 __le32 periods_max; /* max number of periods */ 84 __le32 period_size_min; /* min period size bytes */ 85 __le32 period_size_max; /* max period size bytes */ 86 __le32 buffer_size_min; /* min buffer size bytes */ 87 __le32 buffer_size_max; /* max buffer size bytes */ 88 } __packed; 89 90 /* PCM v4 */ 91 struct snd_soc_tplg_pcm_v4 { 92 __le32 size; /* in bytes of this structure */ 93 char pcm_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 94 char dai_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 95 __le32 pcm_id; /* unique ID - used to match with DAI link */ 96 __le32 dai_id; /* unique ID - used to match */ 97 __le32 playback; /* supports playback mode */ 98 __le32 capture; /* supports capture mode */ 99 __le32 compress; /* 1 = compressed; 0 = PCM */ 100 struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* for DAI link */ 101 __le32 num_streams; /* number of streams */ 102 struct snd_soc_tplg_stream_caps_v4 caps[2]; /* playback and capture for DAI */ 103 } __packed; 104 105 /* Physical link config v4 */ 106 struct snd_soc_tplg_link_config_v4 { 107 __le32 size; /* in bytes of this structure */ 108 __le32 id; /* unique ID - used to match */ 109 struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* supported configs playback and captrure */ 110 __le32 num_streams; /* number of streams */ 111 } __packed; 112 113 /* topology context */ 114 struct soc_tplg { 115 const struct firmware *fw; 116 117 /* runtime FW parsing */ 118 const u8 *pos; /* read postion */ 119 const u8 *hdr_pos; /* header position */ 120 unsigned int pass; /* pass number */ 121 122 /* component caller */ 123 struct device *dev; 124 struct snd_soc_component *comp; 125 u32 index; /* current block index */ 126 u32 req_index; /* required index, only loaded/free matching blocks */ 127 128 /* vendor specific kcontrol operations */ 129 const struct snd_soc_tplg_kcontrol_ops *io_ops; 130 int io_ops_count; 131 132 /* vendor specific bytes ext handlers, for TLV bytes controls */ 133 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops; 134 int bytes_ext_ops_count; 135 136 /* optional fw loading callbacks to component drivers */ 137 struct snd_soc_tplg_ops *ops; 138 }; 139 140 static int soc_tplg_process_headers(struct soc_tplg *tplg); 141 static void soc_tplg_complete(struct soc_tplg *tplg); 142 struct snd_soc_dapm_widget * 143 snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, 144 const struct snd_soc_dapm_widget *widget); 145 struct snd_soc_dapm_widget * 146 snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, 147 const struct snd_soc_dapm_widget *widget); 148 149 /* check we dont overflow the data for this control chunk */ 150 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size, 151 unsigned int count, size_t bytes, const char *elem_type) 152 { 153 const u8 *end = tplg->pos + elem_size * count; 154 155 if (end > tplg->fw->data + tplg->fw->size) { 156 dev_err(tplg->dev, "ASoC: %s overflow end of data\n", 157 elem_type); 158 return -EINVAL; 159 } 160 161 /* check there is enough room in chunk for control. 162 extra bytes at the end of control are for vendor data here */ 163 if (elem_size * count > bytes) { 164 dev_err(tplg->dev, 165 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n", 166 elem_type, count, elem_size, bytes); 167 return -EINVAL; 168 } 169 170 return 0; 171 } 172 173 static inline int soc_tplg_is_eof(struct soc_tplg *tplg) 174 { 175 const u8 *end = tplg->hdr_pos; 176 177 if (end >= tplg->fw->data + tplg->fw->size) 178 return 1; 179 return 0; 180 } 181 182 static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg) 183 { 184 return (unsigned long)(tplg->hdr_pos - tplg->fw->data); 185 } 186 187 static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg) 188 { 189 return (unsigned long)(tplg->pos - tplg->fw->data); 190 } 191 192 /* mapping of Kcontrol types and associated operations. */ 193 static const struct snd_soc_tplg_kcontrol_ops io_ops[] = { 194 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw, 195 snd_soc_put_volsw, snd_soc_info_volsw}, 196 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx, 197 snd_soc_put_volsw_sx, NULL}, 198 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double, 199 snd_soc_put_enum_double, snd_soc_info_enum_double}, 200 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double, 201 snd_soc_put_enum_double, NULL}, 202 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get, 203 snd_soc_bytes_put, snd_soc_bytes_info}, 204 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range, 205 snd_soc_put_volsw_range, snd_soc_info_volsw_range}, 206 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx, 207 snd_soc_put_xr_sx, snd_soc_info_xr_sx}, 208 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe, 209 snd_soc_put_strobe, NULL}, 210 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw, 211 snd_soc_dapm_put_volsw, snd_soc_info_volsw}, 212 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double, 213 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double}, 214 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double, 215 snd_soc_dapm_put_enum_double, NULL}, 216 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double, 217 snd_soc_dapm_put_enum_double, NULL}, 218 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch, 219 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch}, 220 }; 221 222 struct soc_tplg_map { 223 int uid; 224 int kid; 225 }; 226 227 /* mapping of widget types from UAPI IDs to kernel IDs */ 228 static const struct soc_tplg_map dapm_map[] = { 229 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input}, 230 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output}, 231 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux}, 232 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer}, 233 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga}, 234 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv}, 235 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc}, 236 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac}, 237 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch}, 238 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre}, 239 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post}, 240 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in}, 241 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out}, 242 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in}, 243 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out}, 244 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link}, 245 }; 246 247 static int tplc_chan_get_reg(struct soc_tplg *tplg, 248 struct snd_soc_tplg_channel *chan, int map) 249 { 250 int i; 251 252 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 253 if (chan[i].id == map) 254 return chan[i].reg; 255 } 256 257 return -EINVAL; 258 } 259 260 static int tplc_chan_get_shift(struct soc_tplg *tplg, 261 struct snd_soc_tplg_channel *chan, int map) 262 { 263 int i; 264 265 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 266 if (chan[i].id == map) 267 return chan[i].shift; 268 } 269 270 return -EINVAL; 271 } 272 273 static int get_widget_id(int tplg_type) 274 { 275 int i; 276 277 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) { 278 if (tplg_type == dapm_map[i].uid) 279 return dapm_map[i].kid; 280 } 281 282 return -EINVAL; 283 } 284 285 static inline void soc_bind_err(struct soc_tplg *tplg, 286 struct snd_soc_tplg_ctl_hdr *hdr, int index) 287 { 288 dev_err(tplg->dev, 289 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n", 290 hdr->ops.get, hdr->ops.put, hdr->ops.info, index, 291 soc_tplg_get_offset(tplg)); 292 } 293 294 static inline void soc_control_err(struct soc_tplg *tplg, 295 struct snd_soc_tplg_ctl_hdr *hdr, const char *name) 296 { 297 dev_err(tplg->dev, 298 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n", 299 name, hdr->ops.get, hdr->ops.put, hdr->ops.info, 300 soc_tplg_get_offset(tplg)); 301 } 302 303 /* pass vendor data to component driver for processing */ 304 static int soc_tplg_vendor_load_(struct soc_tplg *tplg, 305 struct snd_soc_tplg_hdr *hdr) 306 { 307 int ret = 0; 308 309 if (tplg->comp && tplg->ops && tplg->ops->vendor_load) 310 ret = tplg->ops->vendor_load(tplg->comp, hdr); 311 else { 312 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n", 313 hdr->vendor_type); 314 return -EINVAL; 315 } 316 317 if (ret < 0) 318 dev_err(tplg->dev, 319 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n", 320 soc_tplg_get_hdr_offset(tplg), 321 soc_tplg_get_hdr_offset(tplg), 322 hdr->type, hdr->vendor_type); 323 return ret; 324 } 325 326 /* pass vendor data to component driver for processing */ 327 static int soc_tplg_vendor_load(struct soc_tplg *tplg, 328 struct snd_soc_tplg_hdr *hdr) 329 { 330 if (tplg->pass != SOC_TPLG_PASS_VENDOR) 331 return 0; 332 333 return soc_tplg_vendor_load_(tplg, hdr); 334 } 335 336 /* optionally pass new dynamic widget to component driver. This is mainly for 337 * external widgets where we can assign private data/ops */ 338 static int soc_tplg_widget_load(struct soc_tplg *tplg, 339 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 340 { 341 if (tplg->comp && tplg->ops && tplg->ops->widget_load) 342 return tplg->ops->widget_load(tplg->comp, w, tplg_w); 343 344 return 0; 345 } 346 347 /* pass DAI configurations to component driver for extra intialization */ 348 static int soc_tplg_dai_load(struct soc_tplg *tplg, 349 struct snd_soc_dai_driver *dai_drv) 350 { 351 if (tplg->comp && tplg->ops && tplg->ops->dai_load) 352 return tplg->ops->dai_load(tplg->comp, dai_drv); 353 354 return 0; 355 } 356 357 /* pass link configurations to component driver for extra intialization */ 358 static int soc_tplg_dai_link_load(struct soc_tplg *tplg, 359 struct snd_soc_dai_link *link) 360 { 361 if (tplg->comp && tplg->ops && tplg->ops->link_load) 362 return tplg->ops->link_load(tplg->comp, link); 363 364 return 0; 365 } 366 367 /* tell the component driver that all firmware has been loaded in this request */ 368 static void soc_tplg_complete(struct soc_tplg *tplg) 369 { 370 if (tplg->comp && tplg->ops && tplg->ops->complete) 371 tplg->ops->complete(tplg->comp); 372 } 373 374 /* add a dynamic kcontrol */ 375 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev, 376 const struct snd_kcontrol_new *control_new, const char *prefix, 377 void *data, struct snd_kcontrol **kcontrol) 378 { 379 int err; 380 381 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix); 382 if (*kcontrol == NULL) { 383 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n", 384 control_new->name); 385 return -ENOMEM; 386 } 387 388 err = snd_ctl_add(card, *kcontrol); 389 if (err < 0) { 390 dev_err(dev, "ASoC: Failed to add %s: %d\n", 391 control_new->name, err); 392 return err; 393 } 394 395 return 0; 396 } 397 398 /* add a dynamic kcontrol for component driver */ 399 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg, 400 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol) 401 { 402 struct snd_soc_component *comp = tplg->comp; 403 404 return soc_tplg_add_dcontrol(comp->card->snd_card, 405 comp->dev, k, NULL, comp, kcontrol); 406 } 407 408 /* remove a mixer kcontrol */ 409 static void remove_mixer(struct snd_soc_component *comp, 410 struct snd_soc_dobj *dobj, int pass) 411 { 412 struct snd_card *card = comp->card->snd_card; 413 struct soc_mixer_control *sm = 414 container_of(dobj, struct soc_mixer_control, dobj); 415 const unsigned int *p = NULL; 416 417 if (pass != SOC_TPLG_PASS_MIXER) 418 return; 419 420 if (dobj->ops && dobj->ops->control_unload) 421 dobj->ops->control_unload(comp, dobj); 422 423 if (sm->dobj.control.kcontrol->tlv.p) 424 p = sm->dobj.control.kcontrol->tlv.p; 425 snd_ctl_remove(card, sm->dobj.control.kcontrol); 426 list_del(&sm->dobj.list); 427 kfree(sm); 428 kfree(p); 429 } 430 431 /* remove an enum kcontrol */ 432 static void remove_enum(struct snd_soc_component *comp, 433 struct snd_soc_dobj *dobj, int pass) 434 { 435 struct snd_card *card = comp->card->snd_card; 436 struct soc_enum *se = container_of(dobj, struct soc_enum, dobj); 437 int i; 438 439 if (pass != SOC_TPLG_PASS_MIXER) 440 return; 441 442 if (dobj->ops && dobj->ops->control_unload) 443 dobj->ops->control_unload(comp, dobj); 444 445 snd_ctl_remove(card, se->dobj.control.kcontrol); 446 list_del(&se->dobj.list); 447 448 kfree(se->dobj.control.dvalues); 449 for (i = 0; i < se->items; i++) 450 kfree(se->dobj.control.dtexts[i]); 451 kfree(se); 452 } 453 454 /* remove a byte kcontrol */ 455 static void remove_bytes(struct snd_soc_component *comp, 456 struct snd_soc_dobj *dobj, int pass) 457 { 458 struct snd_card *card = comp->card->snd_card; 459 struct soc_bytes_ext *sb = 460 container_of(dobj, struct soc_bytes_ext, dobj); 461 462 if (pass != SOC_TPLG_PASS_MIXER) 463 return; 464 465 if (dobj->ops && dobj->ops->control_unload) 466 dobj->ops->control_unload(comp, dobj); 467 468 snd_ctl_remove(card, sb->dobj.control.kcontrol); 469 list_del(&sb->dobj.list); 470 kfree(sb); 471 } 472 473 /* remove a widget and it's kcontrols - routes must be removed first */ 474 static void remove_widget(struct snd_soc_component *comp, 475 struct snd_soc_dobj *dobj, int pass) 476 { 477 struct snd_card *card = comp->card->snd_card; 478 struct snd_soc_dapm_widget *w = 479 container_of(dobj, struct snd_soc_dapm_widget, dobj); 480 int i; 481 482 if (pass != SOC_TPLG_PASS_WIDGET) 483 return; 484 485 if (dobj->ops && dobj->ops->widget_unload) 486 dobj->ops->widget_unload(comp, dobj); 487 488 /* 489 * Dynamic Widgets either have 1..N enum kcontrols or mixers. 490 * The enum may either have an array of values or strings. 491 */ 492 if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) { 493 /* enumerated widget mixer */ 494 for (i = 0; i < w->num_kcontrols; i++) { 495 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 496 struct soc_enum *se = 497 (struct soc_enum *)kcontrol->private_value; 498 499 snd_ctl_remove(card, kcontrol); 500 501 kfree(se->dobj.control.dvalues); 502 for (i = 0; i < se->items; i++) 503 kfree(se->dobj.control.dtexts[i]); 504 505 kfree(se); 506 } 507 kfree(w->kcontrol_news); 508 } else { 509 /* volume mixer or bytes controls */ 510 for (i = 0; i < w->num_kcontrols; i++) { 511 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 512 513 if (dobj->widget.kcontrol_type 514 == SND_SOC_TPLG_TYPE_MIXER) 515 kfree(kcontrol->tlv.p); 516 517 /* Private value is used as struct soc_mixer_control 518 * for volume mixers or soc_bytes_ext for bytes 519 * controls. 520 */ 521 kfree((void *)kcontrol->private_value); 522 snd_ctl_remove(card, kcontrol); 523 } 524 kfree(w->kcontrol_news); 525 } 526 /* widget w is freed by soc-dapm.c */ 527 } 528 529 /* remove DAI configurations */ 530 static void remove_dai(struct snd_soc_component *comp, 531 struct snd_soc_dobj *dobj, int pass) 532 { 533 struct snd_soc_dai_driver *dai_drv = 534 container_of(dobj, struct snd_soc_dai_driver, dobj); 535 536 if (pass != SOC_TPLG_PASS_PCM_DAI) 537 return; 538 539 if (dobj->ops && dobj->ops->dai_unload) 540 dobj->ops->dai_unload(comp, dobj); 541 542 kfree(dai_drv->name); 543 list_del(&dobj->list); 544 kfree(dai_drv); 545 } 546 547 /* remove link configurations */ 548 static void remove_link(struct snd_soc_component *comp, 549 struct snd_soc_dobj *dobj, int pass) 550 { 551 struct snd_soc_dai_link *link = 552 container_of(dobj, struct snd_soc_dai_link, dobj); 553 554 if (pass != SOC_TPLG_PASS_PCM_DAI) 555 return; 556 557 if (dobj->ops && dobj->ops->link_unload) 558 dobj->ops->link_unload(comp, dobj); 559 560 kfree(link->name); 561 kfree(link->stream_name); 562 kfree(link->cpu_dai_name); 563 564 list_del(&dobj->list); 565 snd_soc_remove_dai_link(comp->card, link); 566 kfree(link); 567 } 568 569 /* bind a kcontrol to it's IO handlers */ 570 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr, 571 struct snd_kcontrol_new *k, 572 const struct soc_tplg *tplg) 573 { 574 const struct snd_soc_tplg_kcontrol_ops *ops; 575 const struct snd_soc_tplg_bytes_ext_ops *ext_ops; 576 int num_ops, i; 577 578 if (hdr->ops.info == SND_SOC_TPLG_CTL_BYTES 579 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER 580 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE 581 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 582 struct soc_bytes_ext *sbe; 583 struct snd_soc_tplg_bytes_control *be; 584 585 sbe = (struct soc_bytes_ext *)k->private_value; 586 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr); 587 588 /* TLV bytes controls need standard kcontrol info handler, 589 * TLV callback and extended put/get handlers. 590 */ 591 k->info = snd_soc_bytes_info_ext; 592 k->tlv.c = snd_soc_bytes_tlv_callback; 593 594 ext_ops = tplg->bytes_ext_ops; 595 num_ops = tplg->bytes_ext_ops_count; 596 for (i = 0; i < num_ops; i++) { 597 if (!sbe->put && ext_ops[i].id == be->ext_ops.put) 598 sbe->put = ext_ops[i].put; 599 if (!sbe->get && ext_ops[i].id == be->ext_ops.get) 600 sbe->get = ext_ops[i].get; 601 } 602 603 if (sbe->put && sbe->get) 604 return 0; 605 else 606 return -EINVAL; 607 } 608 609 /* try and map vendor specific kcontrol handlers first */ 610 ops = tplg->io_ops; 611 num_ops = tplg->io_ops_count; 612 for (i = 0; i < num_ops; i++) { 613 614 if (k->put == NULL && ops[i].id == hdr->ops.put) 615 k->put = ops[i].put; 616 if (k->get == NULL && ops[i].id == hdr->ops.get) 617 k->get = ops[i].get; 618 if (k->info == NULL && ops[i].id == hdr->ops.info) 619 k->info = ops[i].info; 620 } 621 622 /* vendor specific handlers found ? */ 623 if (k->put && k->get && k->info) 624 return 0; 625 626 /* none found so try standard kcontrol handlers */ 627 ops = io_ops; 628 num_ops = ARRAY_SIZE(io_ops); 629 for (i = 0; i < num_ops; i++) { 630 631 if (k->put == NULL && ops[i].id == hdr->ops.put) 632 k->put = ops[i].put; 633 if (k->get == NULL && ops[i].id == hdr->ops.get) 634 k->get = ops[i].get; 635 if (k->info == NULL && ops[i].id == hdr->ops.info) 636 k->info = ops[i].info; 637 } 638 639 /* standard handlers found ? */ 640 if (k->put && k->get && k->info) 641 return 0; 642 643 /* nothing to bind */ 644 return -EINVAL; 645 } 646 647 /* bind a widgets to it's evnt handlers */ 648 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w, 649 const struct snd_soc_tplg_widget_events *events, 650 int num_events, u16 event_type) 651 { 652 int i; 653 654 w->event = NULL; 655 656 for (i = 0; i < num_events; i++) { 657 if (event_type == events[i].type) { 658 659 /* found - so assign event */ 660 w->event = events[i].event_handler; 661 return 0; 662 } 663 } 664 665 /* not found */ 666 return -EINVAL; 667 } 668 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event); 669 670 /* optionally pass new dynamic kcontrol to component driver. */ 671 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg, 672 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr) 673 { 674 if (tplg->comp && tplg->ops && tplg->ops->control_load) 675 return tplg->ops->control_load(tplg->comp, k, hdr); 676 677 return 0; 678 } 679 680 681 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg, 682 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale) 683 { 684 unsigned int item_len = 2 * sizeof(unsigned int); 685 unsigned int *p; 686 687 p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL); 688 if (!p) 689 return -ENOMEM; 690 691 p[0] = SNDRV_CTL_TLVT_DB_SCALE; 692 p[1] = item_len; 693 p[2] = scale->min; 694 p[3] = (scale->step & TLV_DB_SCALE_MASK) 695 | (scale->mute ? TLV_DB_SCALE_MUTE : 0); 696 697 kc->tlv.p = (void *)p; 698 return 0; 699 } 700 701 static int soc_tplg_create_tlv(struct soc_tplg *tplg, 702 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc) 703 { 704 struct snd_soc_tplg_ctl_tlv *tplg_tlv; 705 706 if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)) 707 return 0; 708 709 if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) { 710 tplg_tlv = &tc->tlv; 711 switch (tplg_tlv->type) { 712 case SNDRV_CTL_TLVT_DB_SCALE: 713 return soc_tplg_create_tlv_db_scale(tplg, kc, 714 &tplg_tlv->scale); 715 716 /* TODO: add support for other TLV types */ 717 default: 718 dev_dbg(tplg->dev, "Unsupported TLV type %d\n", 719 tplg_tlv->type); 720 return -EINVAL; 721 } 722 } 723 724 return 0; 725 } 726 727 static inline void soc_tplg_free_tlv(struct soc_tplg *tplg, 728 struct snd_kcontrol_new *kc) 729 { 730 kfree(kc->tlv.p); 731 } 732 733 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count, 734 size_t size) 735 { 736 struct snd_soc_tplg_bytes_control *be; 737 struct soc_bytes_ext *sbe; 738 struct snd_kcontrol_new kc; 739 int i, err; 740 741 if (soc_tplg_check_elem_count(tplg, 742 sizeof(struct snd_soc_tplg_bytes_control), count, 743 size, "mixer bytes")) { 744 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n", 745 count); 746 return -EINVAL; 747 } 748 749 for (i = 0; i < count; i++) { 750 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 751 752 /* validate kcontrol */ 753 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 754 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 755 return -EINVAL; 756 757 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 758 if (sbe == NULL) 759 return -ENOMEM; 760 761 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 762 be->priv.size); 763 764 dev_dbg(tplg->dev, 765 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 766 be->hdr.name, be->hdr.access); 767 768 memset(&kc, 0, sizeof(kc)); 769 kc.name = be->hdr.name; 770 kc.private_value = (long)sbe; 771 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 772 kc.access = be->hdr.access; 773 774 sbe->max = be->max; 775 sbe->dobj.type = SND_SOC_DOBJ_BYTES; 776 sbe->dobj.ops = tplg->ops; 777 INIT_LIST_HEAD(&sbe->dobj.list); 778 779 /* map io handlers */ 780 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg); 781 if (err) { 782 soc_control_err(tplg, &be->hdr, be->hdr.name); 783 kfree(sbe); 784 continue; 785 } 786 787 /* pass control to driver for optional further init */ 788 err = soc_tplg_init_kcontrol(tplg, &kc, 789 (struct snd_soc_tplg_ctl_hdr *)be); 790 if (err < 0) { 791 dev_err(tplg->dev, "ASoC: failed to init %s\n", 792 be->hdr.name); 793 kfree(sbe); 794 continue; 795 } 796 797 /* register control here */ 798 err = soc_tplg_add_kcontrol(tplg, &kc, 799 &sbe->dobj.control.kcontrol); 800 if (err < 0) { 801 dev_err(tplg->dev, "ASoC: failed to add %s\n", 802 be->hdr.name); 803 kfree(sbe); 804 continue; 805 } 806 807 list_add(&sbe->dobj.list, &tplg->comp->dobj_list); 808 } 809 return 0; 810 811 } 812 813 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count, 814 size_t size) 815 { 816 struct snd_soc_tplg_mixer_control *mc; 817 struct soc_mixer_control *sm; 818 struct snd_kcontrol_new kc; 819 int i, err; 820 821 if (soc_tplg_check_elem_count(tplg, 822 sizeof(struct snd_soc_tplg_mixer_control), 823 count, size, "mixers")) { 824 825 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n", 826 count); 827 return -EINVAL; 828 } 829 830 for (i = 0; i < count; i++) { 831 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 832 833 /* validate kcontrol */ 834 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 835 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 836 return -EINVAL; 837 838 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 839 if (sm == NULL) 840 return -ENOMEM; 841 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 842 mc->priv.size); 843 844 dev_dbg(tplg->dev, 845 "ASoC: adding mixer kcontrol %s with access 0x%x\n", 846 mc->hdr.name, mc->hdr.access); 847 848 memset(&kc, 0, sizeof(kc)); 849 kc.name = mc->hdr.name; 850 kc.private_value = (long)sm; 851 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 852 kc.access = mc->hdr.access; 853 854 /* we only support FL/FR channel mapping atm */ 855 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 856 SNDRV_CHMAP_FL); 857 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 858 SNDRV_CHMAP_FR); 859 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 860 SNDRV_CHMAP_FL); 861 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 862 SNDRV_CHMAP_FR); 863 864 sm->max = mc->max; 865 sm->min = mc->min; 866 sm->invert = mc->invert; 867 sm->platform_max = mc->platform_max; 868 sm->dobj.index = tplg->index; 869 sm->dobj.ops = tplg->ops; 870 sm->dobj.type = SND_SOC_DOBJ_MIXER; 871 INIT_LIST_HEAD(&sm->dobj.list); 872 873 /* map io handlers */ 874 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg); 875 if (err) { 876 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 877 kfree(sm); 878 continue; 879 } 880 881 /* pass control to driver for optional further init */ 882 err = soc_tplg_init_kcontrol(tplg, &kc, 883 (struct snd_soc_tplg_ctl_hdr *) mc); 884 if (err < 0) { 885 dev_err(tplg->dev, "ASoC: failed to init %s\n", 886 mc->hdr.name); 887 kfree(sm); 888 continue; 889 } 890 891 /* create any TLV data */ 892 soc_tplg_create_tlv(tplg, &kc, &mc->hdr); 893 894 /* register control here */ 895 err = soc_tplg_add_kcontrol(tplg, &kc, 896 &sm->dobj.control.kcontrol); 897 if (err < 0) { 898 dev_err(tplg->dev, "ASoC: failed to add %s\n", 899 mc->hdr.name); 900 soc_tplg_free_tlv(tplg, &kc); 901 kfree(sm); 902 continue; 903 } 904 905 list_add(&sm->dobj.list, &tplg->comp->dobj_list); 906 } 907 908 return 0; 909 } 910 911 static int soc_tplg_denum_create_texts(struct soc_enum *se, 912 struct snd_soc_tplg_enum_control *ec) 913 { 914 int i, ret; 915 916 se->dobj.control.dtexts = 917 kzalloc(sizeof(char *) * ec->items, GFP_KERNEL); 918 if (se->dobj.control.dtexts == NULL) 919 return -ENOMEM; 920 921 for (i = 0; i < ec->items; i++) { 922 923 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 924 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 925 ret = -EINVAL; 926 goto err; 927 } 928 929 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL); 930 if (!se->dobj.control.dtexts[i]) { 931 ret = -ENOMEM; 932 goto err; 933 } 934 } 935 936 return 0; 937 938 err: 939 for (--i; i >= 0; i--) 940 kfree(se->dobj.control.dtexts[i]); 941 kfree(se->dobj.control.dtexts); 942 return ret; 943 } 944 945 static int soc_tplg_denum_create_values(struct soc_enum *se, 946 struct snd_soc_tplg_enum_control *ec) 947 { 948 if (ec->items > sizeof(*ec->values)) 949 return -EINVAL; 950 951 se->dobj.control.dvalues = kmemdup(ec->values, 952 ec->items * sizeof(u32), 953 GFP_KERNEL); 954 if (!se->dobj.control.dvalues) 955 return -ENOMEM; 956 957 return 0; 958 } 959 960 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count, 961 size_t size) 962 { 963 struct snd_soc_tplg_enum_control *ec; 964 struct soc_enum *se; 965 struct snd_kcontrol_new kc; 966 int i, ret, err; 967 968 if (soc_tplg_check_elem_count(tplg, 969 sizeof(struct snd_soc_tplg_enum_control), 970 count, size, "enums")) { 971 972 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n", 973 count); 974 return -EINVAL; 975 } 976 977 for (i = 0; i < count; i++) { 978 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 979 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 980 ec->priv.size); 981 982 /* validate kcontrol */ 983 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 984 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 985 return -EINVAL; 986 987 se = kzalloc((sizeof(*se)), GFP_KERNEL); 988 if (se == NULL) 989 return -ENOMEM; 990 991 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", 992 ec->hdr.name, ec->items); 993 994 memset(&kc, 0, sizeof(kc)); 995 kc.name = ec->hdr.name; 996 kc.private_value = (long)se; 997 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 998 kc.access = ec->hdr.access; 999 1000 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1001 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1002 SNDRV_CHMAP_FL); 1003 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1004 SNDRV_CHMAP_FL); 1005 1006 se->items = ec->items; 1007 se->mask = ec->mask; 1008 se->dobj.index = tplg->index; 1009 se->dobj.type = SND_SOC_DOBJ_ENUM; 1010 se->dobj.ops = tplg->ops; 1011 INIT_LIST_HEAD(&se->dobj.list); 1012 1013 switch (ec->hdr.ops.info) { 1014 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1015 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1016 err = soc_tplg_denum_create_values(se, ec); 1017 if (err < 0) { 1018 dev_err(tplg->dev, 1019 "ASoC: could not create values for %s\n", 1020 ec->hdr.name); 1021 kfree(se); 1022 continue; 1023 } 1024 /* fall through and create texts */ 1025 case SND_SOC_TPLG_CTL_ENUM: 1026 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1027 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1028 err = soc_tplg_denum_create_texts(se, ec); 1029 if (err < 0) { 1030 dev_err(tplg->dev, 1031 "ASoC: could not create texts for %s\n", 1032 ec->hdr.name); 1033 kfree(se); 1034 continue; 1035 } 1036 break; 1037 default: 1038 dev_err(tplg->dev, 1039 "ASoC: invalid enum control type %d for %s\n", 1040 ec->hdr.ops.info, ec->hdr.name); 1041 kfree(se); 1042 continue; 1043 } 1044 1045 /* map io handlers */ 1046 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg); 1047 if (err) { 1048 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1049 kfree(se); 1050 continue; 1051 } 1052 1053 /* pass control to driver for optional further init */ 1054 err = soc_tplg_init_kcontrol(tplg, &kc, 1055 (struct snd_soc_tplg_ctl_hdr *) ec); 1056 if (err < 0) { 1057 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1058 ec->hdr.name); 1059 kfree(se); 1060 continue; 1061 } 1062 1063 /* register control here */ 1064 ret = soc_tplg_add_kcontrol(tplg, 1065 &kc, &se->dobj.control.kcontrol); 1066 if (ret < 0) { 1067 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n", 1068 ec->hdr.name); 1069 kfree(se); 1070 continue; 1071 } 1072 1073 list_add(&se->dobj.list, &tplg->comp->dobj_list); 1074 } 1075 1076 return 0; 1077 } 1078 1079 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 1080 struct snd_soc_tplg_hdr *hdr) 1081 { 1082 struct snd_soc_tplg_ctl_hdr *control_hdr; 1083 int i; 1084 1085 if (tplg->pass != SOC_TPLG_PASS_MIXER) { 1086 tplg->pos += hdr->size + hdr->payload_size; 1087 return 0; 1088 } 1089 1090 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 1091 soc_tplg_get_offset(tplg)); 1092 1093 for (i = 0; i < hdr->count; i++) { 1094 1095 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1096 1097 if (control_hdr->size != sizeof(*control_hdr)) { 1098 dev_err(tplg->dev, "ASoC: invalid control size\n"); 1099 return -EINVAL; 1100 } 1101 1102 switch (control_hdr->ops.info) { 1103 case SND_SOC_TPLG_CTL_VOLSW: 1104 case SND_SOC_TPLG_CTL_STROBE: 1105 case SND_SOC_TPLG_CTL_VOLSW_SX: 1106 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1107 case SND_SOC_TPLG_CTL_RANGE: 1108 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1109 case SND_SOC_TPLG_DAPM_CTL_PIN: 1110 soc_tplg_dmixer_create(tplg, 1, hdr->payload_size); 1111 break; 1112 case SND_SOC_TPLG_CTL_ENUM: 1113 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1114 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1115 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1116 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1117 soc_tplg_denum_create(tplg, 1, hdr->payload_size); 1118 break; 1119 case SND_SOC_TPLG_CTL_BYTES: 1120 soc_tplg_dbytes_create(tplg, 1, hdr->payload_size); 1121 break; 1122 default: 1123 soc_bind_err(tplg, control_hdr, i); 1124 return -EINVAL; 1125 } 1126 } 1127 1128 return 0; 1129 } 1130 1131 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1132 struct snd_soc_tplg_hdr *hdr) 1133 { 1134 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1135 struct snd_soc_dapm_route route; 1136 struct snd_soc_tplg_dapm_graph_elem *elem; 1137 int count = hdr->count, i; 1138 1139 if (tplg->pass != SOC_TPLG_PASS_GRAPH) { 1140 tplg->pos += hdr->size + hdr->payload_size; 1141 return 0; 1142 } 1143 1144 if (soc_tplg_check_elem_count(tplg, 1145 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1146 count, hdr->payload_size, "graph")) { 1147 1148 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n", 1149 count); 1150 return -EINVAL; 1151 } 1152 1153 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes\n", count); 1154 1155 for (i = 0; i < count; i++) { 1156 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1157 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1158 1159 /* validate routes */ 1160 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1161 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1162 return -EINVAL; 1163 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1164 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1165 return -EINVAL; 1166 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1167 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1168 return -EINVAL; 1169 1170 route.source = elem->source; 1171 route.sink = elem->sink; 1172 route.connected = NULL; /* set to NULL atm for tplg users */ 1173 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0) 1174 route.control = NULL; 1175 else 1176 route.control = elem->control; 1177 1178 /* add route, but keep going if some fail */ 1179 snd_soc_dapm_add_routes(dapm, &route, 1); 1180 } 1181 1182 return 0; 1183 } 1184 1185 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create( 1186 struct soc_tplg *tplg, int num_kcontrols) 1187 { 1188 struct snd_kcontrol_new *kc; 1189 struct soc_mixer_control *sm; 1190 struct snd_soc_tplg_mixer_control *mc; 1191 int i, err; 1192 1193 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1194 if (kc == NULL) 1195 return NULL; 1196 1197 for (i = 0; i < num_kcontrols; i++) { 1198 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1199 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 1200 if (sm == NULL) 1201 goto err; 1202 1203 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 1204 mc->priv.size); 1205 1206 /* validate kcontrol */ 1207 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1208 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1209 goto err_str; 1210 1211 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n", 1212 mc->hdr.name, i); 1213 1214 kc[i].name = mc->hdr.name; 1215 kc[i].private_value = (long)sm; 1216 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1217 kc[i].access = mc->hdr.access; 1218 1219 /* we only support FL/FR channel mapping atm */ 1220 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 1221 SNDRV_CHMAP_FL); 1222 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 1223 SNDRV_CHMAP_FR); 1224 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 1225 SNDRV_CHMAP_FL); 1226 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 1227 SNDRV_CHMAP_FR); 1228 1229 sm->max = mc->max; 1230 sm->min = mc->min; 1231 sm->invert = mc->invert; 1232 sm->platform_max = mc->platform_max; 1233 sm->dobj.index = tplg->index; 1234 INIT_LIST_HEAD(&sm->dobj.list); 1235 1236 /* map io handlers */ 1237 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg); 1238 if (err) { 1239 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1240 kfree(sm); 1241 continue; 1242 } 1243 1244 /* pass control to driver for optional further init */ 1245 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1246 (struct snd_soc_tplg_ctl_hdr *)mc); 1247 if (err < 0) { 1248 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1249 mc->hdr.name); 1250 kfree(sm); 1251 continue; 1252 } 1253 } 1254 return kc; 1255 1256 err_str: 1257 kfree(sm); 1258 err: 1259 for (--i; i >= 0; i--) 1260 kfree((void *)kc[i].private_value); 1261 kfree(kc); 1262 return NULL; 1263 } 1264 1265 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create( 1266 struct soc_tplg *tplg, int num_kcontrols) 1267 { 1268 struct snd_kcontrol_new *kc; 1269 struct snd_soc_tplg_enum_control *ec; 1270 struct soc_enum *se; 1271 int i, j, err; 1272 1273 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1274 if (kc == NULL) 1275 return NULL; 1276 1277 for (i = 0; i < num_kcontrols; i++) { 1278 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1279 /* validate kcontrol */ 1280 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1281 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1282 return NULL; 1283 1284 se = kzalloc(sizeof(*se), GFP_KERNEL); 1285 if (se == NULL) 1286 goto err; 1287 1288 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1289 ec->hdr.name); 1290 1291 kc[i].name = ec->hdr.name; 1292 kc[i].private_value = (long)se; 1293 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1294 kc[i].access = ec->hdr.access; 1295 1296 /* we only support FL/FR channel mapping atm */ 1297 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1298 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1299 SNDRV_CHMAP_FL); 1300 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1301 SNDRV_CHMAP_FR); 1302 1303 se->items = ec->items; 1304 se->mask = ec->mask; 1305 se->dobj.index = tplg->index; 1306 1307 switch (ec->hdr.ops.info) { 1308 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1309 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1310 err = soc_tplg_denum_create_values(se, ec); 1311 if (err < 0) { 1312 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1313 ec->hdr.name); 1314 goto err_se; 1315 } 1316 /* fall through to create texts */ 1317 case SND_SOC_TPLG_CTL_ENUM: 1318 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1319 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1320 err = soc_tplg_denum_create_texts(se, ec); 1321 if (err < 0) { 1322 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1323 ec->hdr.name); 1324 goto err_se; 1325 } 1326 break; 1327 default: 1328 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1329 ec->hdr.ops.info, ec->hdr.name); 1330 goto err_se; 1331 } 1332 1333 /* map io handlers */ 1334 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg); 1335 if (err) { 1336 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1337 goto err_se; 1338 } 1339 1340 /* pass control to driver for optional further init */ 1341 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1342 (struct snd_soc_tplg_ctl_hdr *)ec); 1343 if (err < 0) { 1344 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1345 ec->hdr.name); 1346 goto err_se; 1347 } 1348 1349 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1350 ec->priv.size); 1351 } 1352 1353 return kc; 1354 1355 err_se: 1356 for (; i >= 0; i--) { 1357 /* free values and texts */ 1358 se = (struct soc_enum *)kc[i].private_value; 1359 kfree(se->dobj.control.dvalues); 1360 for (j = 0; j < ec->items; j++) 1361 kfree(se->dobj.control.dtexts[j]); 1362 1363 kfree(se); 1364 } 1365 err: 1366 kfree(kc); 1367 1368 return NULL; 1369 } 1370 1371 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create( 1372 struct soc_tplg *tplg, int count) 1373 { 1374 struct snd_soc_tplg_bytes_control *be; 1375 struct soc_bytes_ext *sbe; 1376 struct snd_kcontrol_new *kc; 1377 int i, err; 1378 1379 kc = kcalloc(count, sizeof(*kc), GFP_KERNEL); 1380 if (!kc) 1381 return NULL; 1382 1383 for (i = 0; i < count; i++) { 1384 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1385 1386 /* validate kcontrol */ 1387 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1388 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1389 goto err; 1390 1391 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 1392 if (sbe == NULL) 1393 goto err; 1394 1395 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1396 be->priv.size); 1397 1398 dev_dbg(tplg->dev, 1399 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1400 be->hdr.name, be->hdr.access); 1401 1402 kc[i].name = be->hdr.name; 1403 kc[i].private_value = (long)sbe; 1404 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1405 kc[i].access = be->hdr.access; 1406 1407 sbe->max = be->max; 1408 INIT_LIST_HEAD(&sbe->dobj.list); 1409 1410 /* map standard io handlers and check for external handlers */ 1411 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg); 1412 if (err) { 1413 soc_control_err(tplg, &be->hdr, be->hdr.name); 1414 kfree(sbe); 1415 continue; 1416 } 1417 1418 /* pass control to driver for optional further init */ 1419 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1420 (struct snd_soc_tplg_ctl_hdr *)be); 1421 if (err < 0) { 1422 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1423 be->hdr.name); 1424 kfree(sbe); 1425 continue; 1426 } 1427 } 1428 1429 return kc; 1430 1431 err: 1432 for (--i; i >= 0; i--) 1433 kfree((void *)kc[i].private_value); 1434 1435 kfree(kc); 1436 return NULL; 1437 } 1438 1439 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1440 struct snd_soc_tplg_dapm_widget *w) 1441 { 1442 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1443 struct snd_soc_dapm_widget template, *widget; 1444 struct snd_soc_tplg_ctl_hdr *control_hdr; 1445 struct snd_soc_card *card = tplg->comp->card; 1446 unsigned int kcontrol_type; 1447 int ret = 0; 1448 1449 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1450 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1451 return -EINVAL; 1452 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1453 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1454 return -EINVAL; 1455 1456 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1457 w->name, w->id); 1458 1459 memset(&template, 0, sizeof(template)); 1460 1461 /* map user to kernel widget ID */ 1462 template.id = get_widget_id(w->id); 1463 if (template.id < 0) 1464 return template.id; 1465 1466 template.name = kstrdup(w->name, GFP_KERNEL); 1467 if (!template.name) 1468 return -ENOMEM; 1469 template.sname = kstrdup(w->sname, GFP_KERNEL); 1470 if (!template.sname) { 1471 ret = -ENOMEM; 1472 goto err; 1473 } 1474 template.reg = w->reg; 1475 template.shift = w->shift; 1476 template.mask = w->mask; 1477 template.subseq = w->subseq; 1478 template.on_val = w->invert ? 0 : 1; 1479 template.off_val = w->invert ? 1 : 0; 1480 template.ignore_suspend = w->ignore_suspend; 1481 template.event_flags = w->event_flags; 1482 template.dobj.index = tplg->index; 1483 1484 tplg->pos += 1485 (sizeof(struct snd_soc_tplg_dapm_widget) + w->priv.size); 1486 if (w->num_kcontrols == 0) { 1487 kcontrol_type = 0; 1488 template.num_kcontrols = 0; 1489 goto widget; 1490 } 1491 1492 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1493 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n", 1494 w->name, w->num_kcontrols, control_hdr->type); 1495 1496 switch (control_hdr->ops.info) { 1497 case SND_SOC_TPLG_CTL_VOLSW: 1498 case SND_SOC_TPLG_CTL_STROBE: 1499 case SND_SOC_TPLG_CTL_VOLSW_SX: 1500 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1501 case SND_SOC_TPLG_CTL_RANGE: 1502 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1503 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */ 1504 template.num_kcontrols = w->num_kcontrols; 1505 template.kcontrol_news = 1506 soc_tplg_dapm_widget_dmixer_create(tplg, 1507 template.num_kcontrols); 1508 if (!template.kcontrol_news) { 1509 ret = -ENOMEM; 1510 goto hdr_err; 1511 } 1512 break; 1513 case SND_SOC_TPLG_CTL_ENUM: 1514 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1515 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1516 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1517 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1518 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */ 1519 template.num_kcontrols = w->num_kcontrols; 1520 template.kcontrol_news = 1521 soc_tplg_dapm_widget_denum_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_BYTES: 1529 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */ 1530 template.num_kcontrols = w->num_kcontrols; 1531 template.kcontrol_news = 1532 soc_tplg_dapm_widget_dbytes_create(tplg, 1533 template.num_kcontrols); 1534 if (!template.kcontrol_news) { 1535 ret = -ENOMEM; 1536 goto hdr_err; 1537 } 1538 break; 1539 default: 1540 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1541 control_hdr->ops.get, control_hdr->ops.put, 1542 control_hdr->ops.info); 1543 ret = -EINVAL; 1544 goto hdr_err; 1545 } 1546 1547 widget: 1548 ret = soc_tplg_widget_load(tplg, &template, w); 1549 if (ret < 0) 1550 goto hdr_err; 1551 1552 /* card dapm mutex is held by the core if we are loading topology 1553 * data during sound card init. */ 1554 if (card->instantiated) 1555 widget = snd_soc_dapm_new_control(dapm, &template); 1556 else 1557 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1558 if (IS_ERR(widget)) { 1559 ret = PTR_ERR(widget); 1560 /* Do not nag about probe deferrals */ 1561 if (ret != -EPROBE_DEFER) 1562 dev_err(tplg->dev, 1563 "ASoC: failed to create widget %s controls (%d)\n", 1564 w->name, ret); 1565 goto hdr_err; 1566 } 1567 if (widget == NULL) { 1568 dev_err(tplg->dev, "ASoC: failed to create widget %s controls\n", 1569 w->name); 1570 ret = -ENOMEM; 1571 goto hdr_err; 1572 } 1573 1574 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1575 widget->dobj.widget.kcontrol_type = kcontrol_type; 1576 widget->dobj.ops = tplg->ops; 1577 widget->dobj.index = tplg->index; 1578 kfree(template.sname); 1579 kfree(template.name); 1580 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1581 return 0; 1582 1583 hdr_err: 1584 kfree(template.sname); 1585 err: 1586 kfree(template.name); 1587 return ret; 1588 } 1589 1590 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1591 struct snd_soc_tplg_hdr *hdr) 1592 { 1593 struct snd_soc_tplg_dapm_widget *widget; 1594 int ret, count = hdr->count, i; 1595 1596 if (tplg->pass != SOC_TPLG_PASS_WIDGET) 1597 return 0; 1598 1599 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1600 1601 for (i = 0; i < count; i++) { 1602 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1603 if (widget->size != sizeof(*widget)) { 1604 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1605 return -EINVAL; 1606 } 1607 1608 ret = soc_tplg_dapm_widget_create(tplg, widget); 1609 if (ret < 0) { 1610 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1611 widget->name); 1612 return ret; 1613 } 1614 } 1615 1616 return 0; 1617 } 1618 1619 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1620 { 1621 struct snd_soc_card *card = tplg->comp->card; 1622 int ret; 1623 1624 /* Card might not have been registered at this point. 1625 * If so, just return success. 1626 */ 1627 if (!card || !card->instantiated) { 1628 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1629 "Do not add new widgets now\n"); 1630 return 0; 1631 } 1632 1633 ret = snd_soc_dapm_new_widgets(card); 1634 if (ret < 0) 1635 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1636 ret); 1637 1638 return 0; 1639 } 1640 1641 static void set_stream_info(struct snd_soc_pcm_stream *stream, 1642 struct snd_soc_tplg_stream_caps *caps) 1643 { 1644 stream->stream_name = kstrdup(caps->name, GFP_KERNEL); 1645 stream->channels_min = caps->channels_min; 1646 stream->channels_max = caps->channels_max; 1647 stream->rates = caps->rates; 1648 stream->rate_min = caps->rate_min; 1649 stream->rate_max = caps->rate_max; 1650 stream->formats = caps->formats; 1651 stream->sig_bits = caps->sig_bits; 1652 } 1653 1654 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1655 unsigned int flag_mask, unsigned int flags) 1656 { 1657 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1658 dai_drv->symmetric_rates = 1659 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1660 1661 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1662 dai_drv->symmetric_channels = 1663 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ? 1664 1 : 0; 1665 1666 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1667 dai_drv->symmetric_samplebits = 1668 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1669 1 : 0; 1670 } 1671 1672 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1673 struct snd_soc_tplg_pcm *pcm) 1674 { 1675 struct snd_soc_dai_driver *dai_drv; 1676 struct snd_soc_pcm_stream *stream; 1677 struct snd_soc_tplg_stream_caps *caps; 1678 int ret; 1679 1680 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1681 if (dai_drv == NULL) 1682 return -ENOMEM; 1683 1684 if (strlen(pcm->dai_name)) 1685 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL); 1686 dai_drv->id = pcm->dai_id; 1687 1688 if (pcm->playback) { 1689 stream = &dai_drv->playback; 1690 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1691 set_stream_info(stream, caps); 1692 } 1693 1694 if (pcm->capture) { 1695 stream = &dai_drv->capture; 1696 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1697 set_stream_info(stream, caps); 1698 } 1699 1700 /* pass control to component driver for optional further init */ 1701 ret = soc_tplg_dai_load(tplg, dai_drv); 1702 if (ret < 0) { 1703 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 1704 kfree(dai_drv); 1705 return ret; 1706 } 1707 1708 dai_drv->dobj.index = tplg->index; 1709 dai_drv->dobj.ops = tplg->ops; 1710 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1711 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1712 1713 /* register the DAI to the component */ 1714 return snd_soc_register_dai(tplg->comp, dai_drv); 1715 } 1716 1717 static void set_link_flags(struct snd_soc_dai_link *link, 1718 unsigned int flag_mask, unsigned int flags) 1719 { 1720 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1721 link->symmetric_rates = 1722 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1723 1724 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1725 link->symmetric_channels = 1726 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ? 1727 1 : 0; 1728 1729 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1730 link->symmetric_samplebits = 1731 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1732 1 : 0; 1733 1734 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1735 link->ignore_suspend = 1736 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ? 1737 1 : 0; 1738 } 1739 1740 /* create the FE DAI link */ 1741 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1742 struct snd_soc_tplg_pcm *pcm) 1743 { 1744 struct snd_soc_dai_link *link; 1745 int ret; 1746 1747 link = kzalloc(sizeof(struct snd_soc_dai_link), GFP_KERNEL); 1748 if (link == NULL) 1749 return -ENOMEM; 1750 1751 if (strlen(pcm->pcm_name)) { 1752 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1753 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1754 } 1755 link->id = pcm->pcm_id; 1756 1757 if (strlen(pcm->dai_name)) 1758 link->cpu_dai_name = kstrdup(pcm->dai_name, GFP_KERNEL); 1759 1760 link->codec_name = "snd-soc-dummy"; 1761 link->codec_dai_name = "snd-soc-dummy-dai"; 1762 1763 /* enable DPCM */ 1764 link->dynamic = 1; 1765 link->dpcm_playback = pcm->playback; 1766 link->dpcm_capture = pcm->capture; 1767 if (pcm->flag_mask) 1768 set_link_flags(link, pcm->flag_mask, pcm->flags); 1769 1770 /* pass control to component driver for optional further init */ 1771 ret = soc_tplg_dai_link_load(tplg, link); 1772 if (ret < 0) { 1773 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n"); 1774 kfree(link); 1775 return ret; 1776 } 1777 1778 link->dobj.index = tplg->index; 1779 link->dobj.ops = tplg->ops; 1780 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1781 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1782 1783 snd_soc_add_dai_link(tplg->comp->card, link); 1784 return 0; 1785 } 1786 1787 /* create a FE DAI and DAI link from the PCM object */ 1788 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1789 struct snd_soc_tplg_pcm *pcm) 1790 { 1791 int ret; 1792 1793 ret = soc_tplg_dai_create(tplg, pcm); 1794 if (ret < 0) 1795 return ret; 1796 1797 return soc_tplg_fe_link_create(tplg, pcm); 1798 } 1799 1800 /* copy stream caps from the old version 4 of source */ 1801 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 1802 struct snd_soc_tplg_stream_caps_v4 *src) 1803 { 1804 dest->size = sizeof(*dest); 1805 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1806 dest->formats = src->formats; 1807 dest->rates = src->rates; 1808 dest->rate_min = src->rate_min; 1809 dest->rate_max = src->rate_max; 1810 dest->channels_min = src->channels_min; 1811 dest->channels_max = src->channels_max; 1812 dest->periods_min = src->periods_min; 1813 dest->periods_max = src->periods_max; 1814 dest->period_size_min = src->period_size_min; 1815 dest->period_size_max = src->period_size_max; 1816 dest->buffer_size_min = src->buffer_size_min; 1817 dest->buffer_size_max = src->buffer_size_max; 1818 } 1819 1820 /** 1821 * pcm_new_ver - Create the new version of PCM from the old version. 1822 * @tplg: topology context 1823 * @src: older version of pcm as a source 1824 * @pcm: latest version of pcm created from the source 1825 * 1826 * Support from vesion 4. User should free the returned pcm manually. 1827 */ 1828 static int pcm_new_ver(struct soc_tplg *tplg, 1829 struct snd_soc_tplg_pcm *src, 1830 struct snd_soc_tplg_pcm **pcm) 1831 { 1832 struct snd_soc_tplg_pcm *dest; 1833 struct snd_soc_tplg_pcm_v4 *src_v4; 1834 int i; 1835 1836 *pcm = NULL; 1837 1838 if (src->size != sizeof(*src_v4)) { 1839 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 1840 return -EINVAL; 1841 } 1842 1843 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 1844 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 1845 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1846 if (!dest) 1847 return -ENOMEM; 1848 1849 dest->size = sizeof(*dest); /* size of latest abi version */ 1850 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1851 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1852 dest->pcm_id = src_v4->pcm_id; 1853 dest->dai_id = src_v4->dai_id; 1854 dest->playback = src_v4->playback; 1855 dest->capture = src_v4->capture; 1856 dest->compress = src_v4->compress; 1857 dest->num_streams = src_v4->num_streams; 1858 for (i = 0; i < dest->num_streams; i++) 1859 memcpy(&dest->stream[i], &src_v4->stream[i], 1860 sizeof(struct snd_soc_tplg_stream)); 1861 1862 for (i = 0; i < 2; i++) 1863 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 1864 1865 *pcm = dest; 1866 return 0; 1867 } 1868 1869 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1870 struct snd_soc_tplg_hdr *hdr) 1871 { 1872 struct snd_soc_tplg_pcm *pcm, *_pcm; 1873 int count = hdr->count; 1874 int i; 1875 bool abi_match; 1876 1877 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI) 1878 return 0; 1879 1880 /* check the element size and count */ 1881 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1882 if (pcm->size > sizeof(struct snd_soc_tplg_pcm) 1883 || pcm->size < sizeof(struct snd_soc_tplg_pcm_v4)) { 1884 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1885 pcm->size); 1886 return -EINVAL; 1887 } 1888 1889 if (soc_tplg_check_elem_count(tplg, 1890 pcm->size, count, 1891 hdr->payload_size, "PCM DAI")) { 1892 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 1893 count); 1894 return -EINVAL; 1895 } 1896 1897 for (i = 0; i < count; i++) { 1898 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1899 1900 /* check ABI version by size, create a new version of pcm 1901 * if abi not match. 1902 */ 1903 if (pcm->size == sizeof(*pcm)) { 1904 abi_match = true; 1905 _pcm = pcm; 1906 } else { 1907 abi_match = false; 1908 pcm_new_ver(tplg, pcm, &_pcm); 1909 } 1910 1911 /* create the FE DAIs and DAI links */ 1912 soc_tplg_pcm_create(tplg, _pcm); 1913 1914 /* offset by version-specific struct size and 1915 * real priv data size 1916 */ 1917 tplg->pos += pcm->size + _pcm->priv.size; 1918 1919 if (!abi_match) 1920 kfree(_pcm); /* free the duplicated one */ 1921 } 1922 1923 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1924 1925 return 0; 1926 } 1927 1928 /** 1929 * set_link_hw_format - Set the HW audio format of the physical DAI link. 1930 * @link: &snd_soc_dai_link which should be updated 1931 * @cfg: physical link configs. 1932 * 1933 * Topology context contains a list of supported HW formats (configs) and 1934 * a default format ID for the physical link. This function will use this 1935 * default ID to choose the HW format to set the link's DAI format for init. 1936 */ 1937 static void set_link_hw_format(struct snd_soc_dai_link *link, 1938 struct snd_soc_tplg_link_config *cfg) 1939 { 1940 struct snd_soc_tplg_hw_config *hw_config; 1941 unsigned char bclk_master, fsync_master; 1942 unsigned char invert_bclk, invert_fsync; 1943 int i; 1944 1945 for (i = 0; i < cfg->num_hw_configs; i++) { 1946 hw_config = &cfg->hw_config[i]; 1947 if (hw_config->id != cfg->default_hw_config_id) 1948 continue; 1949 1950 link->dai_fmt = hw_config->fmt & SND_SOC_DAIFMT_FORMAT_MASK; 1951 1952 /* clock signal polarity */ 1953 invert_bclk = hw_config->invert_bclk; 1954 invert_fsync = hw_config->invert_fsync; 1955 if (!invert_bclk && !invert_fsync) 1956 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 1957 else if (!invert_bclk && invert_fsync) 1958 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 1959 else if (invert_bclk && !invert_fsync) 1960 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 1961 else 1962 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 1963 1964 /* clock masters */ 1965 bclk_master = hw_config->bclk_master; 1966 fsync_master = hw_config->fsync_master; 1967 if (!bclk_master && !fsync_master) 1968 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; 1969 else if (bclk_master && !fsync_master) 1970 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; 1971 else if (!bclk_master && fsync_master) 1972 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; 1973 else 1974 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; 1975 } 1976 } 1977 1978 /** 1979 * link_new_ver - Create a new physical link config from the old 1980 * version of source. 1981 * @tplg: topology context 1982 * @src: old version of phyical link config as a source 1983 * @link: latest version of physical link config created from the source 1984 * 1985 * Support from vesion 4. User need free the returned link config manually. 1986 */ 1987 static int link_new_ver(struct soc_tplg *tplg, 1988 struct snd_soc_tplg_link_config *src, 1989 struct snd_soc_tplg_link_config **link) 1990 { 1991 struct snd_soc_tplg_link_config *dest; 1992 struct snd_soc_tplg_link_config_v4 *src_v4; 1993 int i; 1994 1995 *link = NULL; 1996 1997 if (src->size != sizeof(struct snd_soc_tplg_link_config_v4)) { 1998 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 1999 return -EINVAL; 2000 } 2001 2002 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2003 2004 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2005 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2006 if (!dest) 2007 return -ENOMEM; 2008 2009 dest->size = sizeof(*dest); 2010 dest->id = src_v4->id; 2011 dest->num_streams = src_v4->num_streams; 2012 for (i = 0; i < dest->num_streams; i++) 2013 memcpy(&dest->stream[i], &src_v4->stream[i], 2014 sizeof(struct snd_soc_tplg_stream)); 2015 2016 *link = dest; 2017 return 0; 2018 } 2019 2020 /* Find and configure an existing physical DAI link */ 2021 static int soc_tplg_link_config(struct soc_tplg *tplg, 2022 struct snd_soc_tplg_link_config *cfg) 2023 { 2024 struct snd_soc_dai_link *link; 2025 const char *name, *stream_name; 2026 size_t len; 2027 int ret; 2028 2029 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2030 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2031 return -EINVAL; 2032 else if (len) 2033 name = cfg->name; 2034 else 2035 name = NULL; 2036 2037 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2038 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2039 return -EINVAL; 2040 else if (len) 2041 stream_name = cfg->stream_name; 2042 else 2043 stream_name = NULL; 2044 2045 link = snd_soc_find_dai_link(tplg->comp->card, cfg->id, 2046 name, stream_name); 2047 if (!link) { 2048 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2049 name, cfg->id); 2050 return -EINVAL; 2051 } 2052 2053 /* hw format */ 2054 if (cfg->num_hw_configs) 2055 set_link_hw_format(link, cfg); 2056 2057 /* flags */ 2058 if (cfg->flag_mask) 2059 set_link_flags(link, cfg->flag_mask, cfg->flags); 2060 2061 /* pass control to component driver for optional further init */ 2062 ret = soc_tplg_dai_link_load(tplg, link); 2063 if (ret < 0) { 2064 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2065 return ret; 2066 } 2067 2068 return 0; 2069 } 2070 2071 2072 /* Load physical link config elements from the topology context */ 2073 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2074 struct snd_soc_tplg_hdr *hdr) 2075 { 2076 struct snd_soc_tplg_link_config *link, *_link; 2077 int count = hdr->count; 2078 int i, ret; 2079 bool abi_match; 2080 2081 if (tplg->pass != SOC_TPLG_PASS_LINK) { 2082 tplg->pos += hdr->size + hdr->payload_size; 2083 return 0; 2084 }; 2085 2086 /* check the element size and count */ 2087 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2088 if (link->size > sizeof(struct snd_soc_tplg_link_config) 2089 || link->size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2090 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2091 link->size); 2092 return -EINVAL; 2093 } 2094 2095 if (soc_tplg_check_elem_count(tplg, 2096 link->size, count, 2097 hdr->payload_size, "physical link config")) { 2098 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2099 count); 2100 return -EINVAL; 2101 } 2102 2103 /* config physical DAI links */ 2104 for (i = 0; i < count; i++) { 2105 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2106 if (link->size == sizeof(*link)) { 2107 abi_match = true; 2108 _link = link; 2109 } else { 2110 abi_match = false; 2111 ret = link_new_ver(tplg, link, &_link); 2112 if (ret < 0) 2113 return ret; 2114 } 2115 2116 ret = soc_tplg_link_config(tplg, _link); 2117 if (ret < 0) 2118 return ret; 2119 2120 /* offset by version-specific struct size and 2121 * real priv data size 2122 */ 2123 tplg->pos += link->size + _link->priv.size; 2124 2125 if (!abi_match) 2126 kfree(_link); /* free the duplicated one */ 2127 } 2128 2129 return 0; 2130 } 2131 2132 /** 2133 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2134 * @tplg: topology context 2135 * @d: physical DAI configs. 2136 * 2137 * The physical dai should already be registered by the platform driver. 2138 * The platform driver should specify the DAI name and ID for matching. 2139 */ 2140 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2141 struct snd_soc_tplg_dai *d) 2142 { 2143 struct snd_soc_dai_link_component dai_component = {0}; 2144 struct snd_soc_dai *dai; 2145 struct snd_soc_dai_driver *dai_drv; 2146 struct snd_soc_pcm_stream *stream; 2147 struct snd_soc_tplg_stream_caps *caps; 2148 int ret; 2149 2150 dai_component.dai_name = d->dai_name; 2151 dai = snd_soc_find_dai(&dai_component); 2152 if (!dai) { 2153 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2154 d->dai_name); 2155 return -EINVAL; 2156 } 2157 2158 if (d->dai_id != dai->id) { 2159 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2160 d->dai_name); 2161 return -EINVAL; 2162 } 2163 2164 dai_drv = dai->driver; 2165 if (!dai_drv) 2166 return -EINVAL; 2167 2168 if (d->playback) { 2169 stream = &dai_drv->playback; 2170 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2171 set_stream_info(stream, caps); 2172 } 2173 2174 if (d->capture) { 2175 stream = &dai_drv->capture; 2176 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2177 set_stream_info(stream, caps); 2178 } 2179 2180 if (d->flag_mask) 2181 set_dai_flags(dai_drv, d->flag_mask, d->flags); 2182 2183 /* pass control to component driver for optional further init */ 2184 ret = soc_tplg_dai_load(tplg, dai_drv); 2185 if (ret < 0) { 2186 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 2187 return ret; 2188 } 2189 2190 return 0; 2191 } 2192 2193 /* load physical DAI elements */ 2194 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2195 struct snd_soc_tplg_hdr *hdr) 2196 { 2197 struct snd_soc_tplg_dai *dai; 2198 int count = hdr->count; 2199 int i; 2200 2201 if (tplg->pass != SOC_TPLG_PASS_BE_DAI) 2202 return 0; 2203 2204 /* config the existing BE DAIs */ 2205 for (i = 0; i < count; i++) { 2206 dai = (struct snd_soc_tplg_dai *)tplg->pos; 2207 if (dai->size != sizeof(*dai)) { 2208 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2209 return -EINVAL; 2210 } 2211 2212 soc_tplg_dai_config(tplg, dai); 2213 tplg->pos += (sizeof(*dai) + dai->priv.size); 2214 } 2215 2216 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2217 return 0; 2218 } 2219 2220 /** 2221 * manifest_new_ver - Create a new version of manifest from the old version 2222 * of source. 2223 * @tplg: topology context 2224 * @src: old version of manifest as a source 2225 * @manifest: latest version of manifest created from the source 2226 * 2227 * Support from vesion 4. Users need free the returned manifest manually. 2228 */ 2229 static int manifest_new_ver(struct soc_tplg *tplg, 2230 struct snd_soc_tplg_manifest *src, 2231 struct snd_soc_tplg_manifest **manifest) 2232 { 2233 struct snd_soc_tplg_manifest *dest; 2234 struct snd_soc_tplg_manifest_v4 *src_v4; 2235 2236 *manifest = NULL; 2237 2238 if (src->size != sizeof(*src_v4)) { 2239 dev_err(tplg->dev, "ASoC: invalid manifest size\n"); 2240 return -EINVAL; 2241 } 2242 2243 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2244 2245 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2246 dest = kzalloc(sizeof(*dest) + src_v4->priv.size, GFP_KERNEL); 2247 if (!dest) 2248 return -ENOMEM; 2249 2250 dest->size = sizeof(*dest); /* size of latest abi version */ 2251 dest->control_elems = src_v4->control_elems; 2252 dest->widget_elems = src_v4->widget_elems; 2253 dest->graph_elems = src_v4->graph_elems; 2254 dest->pcm_elems = src_v4->pcm_elems; 2255 dest->dai_link_elems = src_v4->dai_link_elems; 2256 dest->priv.size = src_v4->priv.size; 2257 if (dest->priv.size) 2258 memcpy(dest->priv.data, src_v4->priv.data, 2259 src_v4->priv.size); 2260 2261 *manifest = dest; 2262 return 0; 2263 } 2264 2265 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2266 struct snd_soc_tplg_hdr *hdr) 2267 { 2268 struct snd_soc_tplg_manifest *manifest, *_manifest; 2269 bool abi_match; 2270 int err; 2271 2272 if (tplg->pass != SOC_TPLG_PASS_MANIFEST) 2273 return 0; 2274 2275 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2276 2277 /* check ABI version by size, create a new manifest if abi not match */ 2278 if (manifest->size == sizeof(*manifest)) { 2279 abi_match = true; 2280 _manifest = manifest; 2281 } else { 2282 abi_match = false; 2283 err = manifest_new_ver(tplg, manifest, &_manifest); 2284 if (err < 0) 2285 return err; 2286 } 2287 2288 /* pass control to component driver for optional further init */ 2289 if (tplg->comp && tplg->ops && tplg->ops->manifest) 2290 return tplg->ops->manifest(tplg->comp, _manifest); 2291 2292 if (!abi_match) /* free the duplicated one */ 2293 kfree(_manifest); 2294 2295 return 0; 2296 } 2297 2298 /* validate header magic, size and type */ 2299 static int soc_valid_header(struct soc_tplg *tplg, 2300 struct snd_soc_tplg_hdr *hdr) 2301 { 2302 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2303 return 0; 2304 2305 if (hdr->size != sizeof(*hdr)) { 2306 dev_err(tplg->dev, 2307 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2308 hdr->type, soc_tplg_get_hdr_offset(tplg), 2309 tplg->fw->size); 2310 return -EINVAL; 2311 } 2312 2313 /* big endian firmware objects not supported atm */ 2314 if (hdr->magic == cpu_to_be32(SND_SOC_TPLG_MAGIC)) { 2315 dev_err(tplg->dev, 2316 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2317 tplg->pass, hdr->magic, 2318 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2319 return -EINVAL; 2320 } 2321 2322 if (hdr->magic != SND_SOC_TPLG_MAGIC) { 2323 dev_err(tplg->dev, 2324 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2325 tplg->pass, hdr->magic, 2326 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2327 return -EINVAL; 2328 } 2329 2330 /* Support ABI from version 4 */ 2331 if (hdr->abi > SND_SOC_TPLG_ABI_VERSION 2332 || hdr->abi < SND_SOC_TPLG_ABI_VERSION_MIN) { 2333 dev_err(tplg->dev, 2334 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2335 tplg->pass, hdr->abi, 2336 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2337 tplg->fw->size); 2338 return -EINVAL; 2339 } 2340 2341 if (hdr->payload_size == 0) { 2342 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2343 soc_tplg_get_hdr_offset(tplg)); 2344 return -EINVAL; 2345 } 2346 2347 if (tplg->pass == hdr->type) 2348 dev_dbg(tplg->dev, 2349 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2350 hdr->payload_size, hdr->type, hdr->version, 2351 hdr->vendor_type, tplg->pass); 2352 2353 return 1; 2354 } 2355 2356 /* check header type and call appropriate handler */ 2357 static int soc_tplg_load_header(struct soc_tplg *tplg, 2358 struct snd_soc_tplg_hdr *hdr) 2359 { 2360 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2361 2362 /* check for matching ID */ 2363 if (hdr->index != tplg->req_index && 2364 hdr->index != SND_SOC_TPLG_INDEX_ALL) 2365 return 0; 2366 2367 tplg->index = hdr->index; 2368 2369 switch (hdr->type) { 2370 case SND_SOC_TPLG_TYPE_MIXER: 2371 case SND_SOC_TPLG_TYPE_ENUM: 2372 case SND_SOC_TPLG_TYPE_BYTES: 2373 return soc_tplg_kcontrol_elems_load(tplg, hdr); 2374 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2375 return soc_tplg_dapm_graph_elems_load(tplg, hdr); 2376 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2377 return soc_tplg_dapm_widget_elems_load(tplg, hdr); 2378 case SND_SOC_TPLG_TYPE_PCM: 2379 return soc_tplg_pcm_elems_load(tplg, hdr); 2380 case SND_SOC_TPLG_TYPE_DAI: 2381 return soc_tplg_dai_elems_load(tplg, hdr); 2382 case SND_SOC_TPLG_TYPE_DAI_LINK: 2383 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2384 /* physical link configurations */ 2385 return soc_tplg_link_elems_load(tplg, hdr); 2386 case SND_SOC_TPLG_TYPE_MANIFEST: 2387 return soc_tplg_manifest_load(tplg, hdr); 2388 default: 2389 /* bespoke vendor data object */ 2390 return soc_tplg_vendor_load(tplg, hdr); 2391 } 2392 2393 return 0; 2394 } 2395 2396 /* process the topology file headers */ 2397 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2398 { 2399 struct snd_soc_tplg_hdr *hdr; 2400 int ret; 2401 2402 tplg->pass = SOC_TPLG_PASS_START; 2403 2404 /* process the header types from start to end */ 2405 while (tplg->pass <= SOC_TPLG_PASS_END) { 2406 2407 tplg->hdr_pos = tplg->fw->data; 2408 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2409 2410 while (!soc_tplg_is_eof(tplg)) { 2411 2412 /* make sure header is valid before loading */ 2413 ret = soc_valid_header(tplg, hdr); 2414 if (ret < 0) 2415 return ret; 2416 else if (ret == 0) 2417 break; 2418 2419 /* load the header object */ 2420 ret = soc_tplg_load_header(tplg, hdr); 2421 if (ret < 0) 2422 return ret; 2423 2424 /* goto next header */ 2425 tplg->hdr_pos += hdr->payload_size + 2426 sizeof(struct snd_soc_tplg_hdr); 2427 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2428 } 2429 2430 /* next data type pass */ 2431 tplg->pass++; 2432 } 2433 2434 /* signal DAPM we are complete */ 2435 ret = soc_tplg_dapm_complete(tplg); 2436 if (ret < 0) 2437 dev_err(tplg->dev, 2438 "ASoC: failed to initialise DAPM from Firmware\n"); 2439 2440 return ret; 2441 } 2442 2443 static int soc_tplg_load(struct soc_tplg *tplg) 2444 { 2445 int ret; 2446 2447 ret = soc_tplg_process_headers(tplg); 2448 if (ret == 0) 2449 soc_tplg_complete(tplg); 2450 2451 return ret; 2452 } 2453 2454 /* load audio component topology from "firmware" file */ 2455 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2456 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) 2457 { 2458 struct soc_tplg tplg; 2459 2460 /* setup parsing context */ 2461 memset(&tplg, 0, sizeof(tplg)); 2462 tplg.fw = fw; 2463 tplg.dev = comp->dev; 2464 tplg.comp = comp; 2465 tplg.ops = ops; 2466 tplg.req_index = id; 2467 tplg.io_ops = ops->io_ops; 2468 tplg.io_ops_count = ops->io_ops_count; 2469 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2470 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2471 2472 return soc_tplg_load(&tplg); 2473 } 2474 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2475 2476 /* remove this dynamic widget */ 2477 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) 2478 { 2479 /* make sure we are a widget */ 2480 if (w->dobj.type != SND_SOC_DOBJ_WIDGET) 2481 return; 2482 2483 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); 2484 } 2485 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); 2486 2487 /* remove all dynamic widgets from this DAPM context */ 2488 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, 2489 u32 index) 2490 { 2491 struct snd_soc_dapm_widget *w, *next_w; 2492 2493 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { 2494 2495 /* make sure we are a widget with correct context */ 2496 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) 2497 continue; 2498 2499 /* match ID */ 2500 if (w->dobj.index != index && 2501 w->dobj.index != SND_SOC_TPLG_INDEX_ALL) 2502 continue; 2503 /* check and free and dynamic widget kcontrols */ 2504 snd_soc_tplg_widget_remove(w); 2505 snd_soc_dapm_free_widget(w); 2506 } 2507 snd_soc_dapm_reset_cache(dapm); 2508 } 2509 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); 2510 2511 /* remove dynamic controls from the component driver */ 2512 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) 2513 { 2514 struct snd_soc_dobj *dobj, *next_dobj; 2515 int pass = SOC_TPLG_PASS_END; 2516 2517 /* process the header types from end to start */ 2518 while (pass >= SOC_TPLG_PASS_START) { 2519 2520 /* remove mixer controls */ 2521 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2522 list) { 2523 2524 /* match index */ 2525 if (dobj->index != index && 2526 dobj->index != SND_SOC_TPLG_INDEX_ALL) 2527 continue; 2528 2529 switch (dobj->type) { 2530 case SND_SOC_DOBJ_MIXER: 2531 remove_mixer(comp, dobj, pass); 2532 break; 2533 case SND_SOC_DOBJ_ENUM: 2534 remove_enum(comp, dobj, pass); 2535 break; 2536 case SND_SOC_DOBJ_BYTES: 2537 remove_bytes(comp, dobj, pass); 2538 break; 2539 case SND_SOC_DOBJ_WIDGET: 2540 remove_widget(comp, dobj, pass); 2541 break; 2542 case SND_SOC_DOBJ_PCM: 2543 remove_dai(comp, dobj, pass); 2544 break; 2545 case SND_SOC_DOBJ_DAI_LINK: 2546 remove_link(comp, dobj, pass); 2547 break; 2548 default: 2549 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2550 dobj->type); 2551 break; 2552 } 2553 } 2554 pass--; 2555 } 2556 2557 /* let caller know if FW can be freed when no objects are left */ 2558 return !list_empty(&comp->dobj_list); 2559 } 2560 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2561