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 (widget == NULL) { 1559 dev_err(tplg->dev, "ASoC: failed to create widget %s controls\n", 1560 w->name); 1561 ret = -ENOMEM; 1562 goto hdr_err; 1563 } 1564 1565 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1566 widget->dobj.widget.kcontrol_type = kcontrol_type; 1567 widget->dobj.ops = tplg->ops; 1568 widget->dobj.index = tplg->index; 1569 kfree(template.sname); 1570 kfree(template.name); 1571 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1572 return 0; 1573 1574 hdr_err: 1575 kfree(template.sname); 1576 err: 1577 kfree(template.name); 1578 return ret; 1579 } 1580 1581 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1582 struct snd_soc_tplg_hdr *hdr) 1583 { 1584 struct snd_soc_tplg_dapm_widget *widget; 1585 int ret, count = hdr->count, i; 1586 1587 if (tplg->pass != SOC_TPLG_PASS_WIDGET) 1588 return 0; 1589 1590 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1591 1592 for (i = 0; i < count; i++) { 1593 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1594 if (widget->size != sizeof(*widget)) { 1595 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1596 return -EINVAL; 1597 } 1598 1599 ret = soc_tplg_dapm_widget_create(tplg, widget); 1600 if (ret < 0) { 1601 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1602 widget->name); 1603 return ret; 1604 } 1605 } 1606 1607 return 0; 1608 } 1609 1610 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1611 { 1612 struct snd_soc_card *card = tplg->comp->card; 1613 int ret; 1614 1615 /* Card might not have been registered at this point. 1616 * If so, just return success. 1617 */ 1618 if (!card || !card->instantiated) { 1619 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1620 "Do not add new widgets now\n"); 1621 return 0; 1622 } 1623 1624 ret = snd_soc_dapm_new_widgets(card); 1625 if (ret < 0) 1626 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1627 ret); 1628 1629 return 0; 1630 } 1631 1632 static void set_stream_info(struct snd_soc_pcm_stream *stream, 1633 struct snd_soc_tplg_stream_caps *caps) 1634 { 1635 stream->stream_name = kstrdup(caps->name, GFP_KERNEL); 1636 stream->channels_min = caps->channels_min; 1637 stream->channels_max = caps->channels_max; 1638 stream->rates = caps->rates; 1639 stream->rate_min = caps->rate_min; 1640 stream->rate_max = caps->rate_max; 1641 stream->formats = caps->formats; 1642 stream->sig_bits = caps->sig_bits; 1643 } 1644 1645 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1646 unsigned int flag_mask, unsigned int flags) 1647 { 1648 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1649 dai_drv->symmetric_rates = 1650 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1651 1652 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1653 dai_drv->symmetric_channels = 1654 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ? 1655 1 : 0; 1656 1657 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1658 dai_drv->symmetric_samplebits = 1659 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1660 1 : 0; 1661 } 1662 1663 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1664 struct snd_soc_tplg_pcm *pcm) 1665 { 1666 struct snd_soc_dai_driver *dai_drv; 1667 struct snd_soc_pcm_stream *stream; 1668 struct snd_soc_tplg_stream_caps *caps; 1669 int ret; 1670 1671 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1672 if (dai_drv == NULL) 1673 return -ENOMEM; 1674 1675 if (strlen(pcm->dai_name)) 1676 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL); 1677 dai_drv->id = pcm->dai_id; 1678 1679 if (pcm->playback) { 1680 stream = &dai_drv->playback; 1681 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1682 set_stream_info(stream, caps); 1683 } 1684 1685 if (pcm->capture) { 1686 stream = &dai_drv->capture; 1687 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1688 set_stream_info(stream, caps); 1689 } 1690 1691 /* pass control to component driver for optional further init */ 1692 ret = soc_tplg_dai_load(tplg, dai_drv); 1693 if (ret < 0) { 1694 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 1695 kfree(dai_drv); 1696 return ret; 1697 } 1698 1699 dai_drv->dobj.index = tplg->index; 1700 dai_drv->dobj.ops = tplg->ops; 1701 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1702 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1703 1704 /* register the DAI to the component */ 1705 return snd_soc_register_dai(tplg->comp, dai_drv); 1706 } 1707 1708 static void set_link_flags(struct snd_soc_dai_link *link, 1709 unsigned int flag_mask, unsigned int flags) 1710 { 1711 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1712 link->symmetric_rates = 1713 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1714 1715 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1716 link->symmetric_channels = 1717 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ? 1718 1 : 0; 1719 1720 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1721 link->symmetric_samplebits = 1722 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1723 1 : 0; 1724 1725 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1726 link->ignore_suspend = 1727 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ? 1728 1 : 0; 1729 } 1730 1731 /* create the FE DAI link */ 1732 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1733 struct snd_soc_tplg_pcm *pcm) 1734 { 1735 struct snd_soc_dai_link *link; 1736 int ret; 1737 1738 link = kzalloc(sizeof(struct snd_soc_dai_link), GFP_KERNEL); 1739 if (link == NULL) 1740 return -ENOMEM; 1741 1742 if (strlen(pcm->pcm_name)) { 1743 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1744 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1745 } 1746 link->id = pcm->pcm_id; 1747 1748 if (strlen(pcm->dai_name)) 1749 link->cpu_dai_name = kstrdup(pcm->dai_name, GFP_KERNEL); 1750 1751 link->codec_name = "snd-soc-dummy"; 1752 link->codec_dai_name = "snd-soc-dummy-dai"; 1753 1754 /* enable DPCM */ 1755 link->dynamic = 1; 1756 link->dpcm_playback = pcm->playback; 1757 link->dpcm_capture = pcm->capture; 1758 if (pcm->flag_mask) 1759 set_link_flags(link, pcm->flag_mask, pcm->flags); 1760 1761 /* pass control to component driver for optional further init */ 1762 ret = soc_tplg_dai_link_load(tplg, link); 1763 if (ret < 0) { 1764 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n"); 1765 kfree(link); 1766 return ret; 1767 } 1768 1769 link->dobj.index = tplg->index; 1770 link->dobj.ops = tplg->ops; 1771 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1772 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1773 1774 snd_soc_add_dai_link(tplg->comp->card, link); 1775 return 0; 1776 } 1777 1778 /* create a FE DAI and DAI link from the PCM object */ 1779 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1780 struct snd_soc_tplg_pcm *pcm) 1781 { 1782 int ret; 1783 1784 ret = soc_tplg_dai_create(tplg, pcm); 1785 if (ret < 0) 1786 return ret; 1787 1788 return soc_tplg_fe_link_create(tplg, pcm); 1789 } 1790 1791 /* copy stream caps from the old version 4 of source */ 1792 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 1793 struct snd_soc_tplg_stream_caps_v4 *src) 1794 { 1795 dest->size = sizeof(*dest); 1796 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1797 dest->formats = src->formats; 1798 dest->rates = src->rates; 1799 dest->rate_min = src->rate_min; 1800 dest->rate_max = src->rate_max; 1801 dest->channels_min = src->channels_min; 1802 dest->channels_max = src->channels_max; 1803 dest->periods_min = src->periods_min; 1804 dest->periods_max = src->periods_max; 1805 dest->period_size_min = src->period_size_min; 1806 dest->period_size_max = src->period_size_max; 1807 dest->buffer_size_min = src->buffer_size_min; 1808 dest->buffer_size_max = src->buffer_size_max; 1809 } 1810 1811 /** 1812 * pcm_new_ver - Create the new version of PCM from the old version. 1813 * @tplg: topology context 1814 * @src: older version of pcm as a source 1815 * @pcm: latest version of pcm created from the source 1816 * 1817 * Support from vesion 4. User should free the returned pcm manually. 1818 */ 1819 static int pcm_new_ver(struct soc_tplg *tplg, 1820 struct snd_soc_tplg_pcm *src, 1821 struct snd_soc_tplg_pcm **pcm) 1822 { 1823 struct snd_soc_tplg_pcm *dest; 1824 struct snd_soc_tplg_pcm_v4 *src_v4; 1825 int i; 1826 1827 *pcm = NULL; 1828 1829 if (src->size != sizeof(*src_v4)) { 1830 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 1831 return -EINVAL; 1832 } 1833 1834 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 1835 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 1836 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1837 if (!dest) 1838 return -ENOMEM; 1839 1840 dest->size = sizeof(*dest); /* size of latest abi version */ 1841 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1842 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1843 dest->pcm_id = src_v4->pcm_id; 1844 dest->dai_id = src_v4->dai_id; 1845 dest->playback = src_v4->playback; 1846 dest->capture = src_v4->capture; 1847 dest->compress = src_v4->compress; 1848 dest->num_streams = src_v4->num_streams; 1849 for (i = 0; i < dest->num_streams; i++) 1850 memcpy(&dest->stream[i], &src_v4->stream[i], 1851 sizeof(struct snd_soc_tplg_stream)); 1852 1853 for (i = 0; i < 2; i++) 1854 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 1855 1856 *pcm = dest; 1857 return 0; 1858 } 1859 1860 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1861 struct snd_soc_tplg_hdr *hdr) 1862 { 1863 struct snd_soc_tplg_pcm *pcm, *_pcm; 1864 int count = hdr->count; 1865 int i, err; 1866 bool abi_match; 1867 1868 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI) 1869 return 0; 1870 1871 /* check the element size and count */ 1872 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1873 if (pcm->size > sizeof(struct snd_soc_tplg_pcm) 1874 || pcm->size < sizeof(struct snd_soc_tplg_pcm_v4)) { 1875 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1876 pcm->size); 1877 return -EINVAL; 1878 } 1879 1880 if (soc_tplg_check_elem_count(tplg, 1881 pcm->size, count, 1882 hdr->payload_size, "PCM DAI")) { 1883 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 1884 count); 1885 return -EINVAL; 1886 } 1887 1888 for (i = 0; i < count; i++) { 1889 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1890 1891 /* check ABI version by size, create a new version of pcm 1892 * if abi not match. 1893 */ 1894 if (pcm->size == sizeof(*pcm)) { 1895 abi_match = true; 1896 _pcm = pcm; 1897 } else { 1898 abi_match = false; 1899 err = pcm_new_ver(tplg, pcm, &_pcm); 1900 } 1901 1902 /* create the FE DAIs and DAI links */ 1903 soc_tplg_pcm_create(tplg, _pcm); 1904 1905 /* offset by version-specific struct size and 1906 * real priv data size 1907 */ 1908 tplg->pos += pcm->size + _pcm->priv.size; 1909 1910 if (!abi_match) 1911 kfree(_pcm); /* free the duplicated one */ 1912 } 1913 1914 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1915 1916 return 0; 1917 } 1918 1919 /** 1920 * set_link_hw_format - Set the HW audio format of the physical DAI link. 1921 * @tplg: topology context 1922 * @cfg: physical link configs. 1923 * 1924 * Topology context contains a list of supported HW formats (configs) and 1925 * a default format ID for the physical link. This function will use this 1926 * default ID to choose the HW format to set the link's DAI format for init. 1927 */ 1928 static void set_link_hw_format(struct snd_soc_dai_link *link, 1929 struct snd_soc_tplg_link_config *cfg) 1930 { 1931 struct snd_soc_tplg_hw_config *hw_config; 1932 unsigned char bclk_master, fsync_master; 1933 unsigned char invert_bclk, invert_fsync; 1934 int i; 1935 1936 for (i = 0; i < cfg->num_hw_configs; i++) { 1937 hw_config = &cfg->hw_config[i]; 1938 if (hw_config->id != cfg->default_hw_config_id) 1939 continue; 1940 1941 link->dai_fmt = hw_config->fmt & SND_SOC_DAIFMT_FORMAT_MASK; 1942 1943 /* clock signal polarity */ 1944 invert_bclk = hw_config->invert_bclk; 1945 invert_fsync = hw_config->invert_fsync; 1946 if (!invert_bclk && !invert_fsync) 1947 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 1948 else if (!invert_bclk && invert_fsync) 1949 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 1950 else if (invert_bclk && !invert_fsync) 1951 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 1952 else 1953 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 1954 1955 /* clock masters */ 1956 bclk_master = hw_config->bclk_master; 1957 fsync_master = hw_config->fsync_master; 1958 if (!bclk_master && !fsync_master) 1959 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; 1960 else if (bclk_master && !fsync_master) 1961 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; 1962 else if (!bclk_master && fsync_master) 1963 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; 1964 else 1965 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; 1966 } 1967 } 1968 1969 /** 1970 * link_new_ver - Create a new physical link config from the old 1971 * version of source. 1972 * @toplogy: topology context 1973 * @src: old version of phyical link config as a source 1974 * @link: latest version of physical link config created from the source 1975 * 1976 * Support from vesion 4. User need free the returned link config manually. 1977 */ 1978 static int link_new_ver(struct soc_tplg *tplg, 1979 struct snd_soc_tplg_link_config *src, 1980 struct snd_soc_tplg_link_config **link) 1981 { 1982 struct snd_soc_tplg_link_config *dest; 1983 struct snd_soc_tplg_link_config_v4 *src_v4; 1984 int i; 1985 1986 *link = NULL; 1987 1988 if (src->size != sizeof(struct snd_soc_tplg_link_config_v4)) { 1989 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 1990 return -EINVAL; 1991 } 1992 1993 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 1994 1995 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 1996 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1997 if (!dest) 1998 return -ENOMEM; 1999 2000 dest->size = sizeof(*dest); 2001 dest->id = src_v4->id; 2002 dest->num_streams = src_v4->num_streams; 2003 for (i = 0; i < dest->num_streams; i++) 2004 memcpy(&dest->stream[i], &src_v4->stream[i], 2005 sizeof(struct snd_soc_tplg_stream)); 2006 2007 *link = dest; 2008 return 0; 2009 } 2010 2011 /* Find and configure an existing physical DAI link */ 2012 static int soc_tplg_link_config(struct soc_tplg *tplg, 2013 struct snd_soc_tplg_link_config *cfg) 2014 { 2015 struct snd_soc_dai_link *link; 2016 const char *name, *stream_name; 2017 size_t len; 2018 int ret; 2019 2020 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2021 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2022 return -EINVAL; 2023 else if (len) 2024 name = cfg->name; 2025 else 2026 name = NULL; 2027 2028 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2029 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2030 return -EINVAL; 2031 else if (len) 2032 stream_name = cfg->stream_name; 2033 else 2034 stream_name = NULL; 2035 2036 link = snd_soc_find_dai_link(tplg->comp->card, cfg->id, 2037 name, stream_name); 2038 if (!link) { 2039 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2040 name, cfg->id); 2041 return -EINVAL; 2042 } 2043 2044 /* hw format */ 2045 if (cfg->num_hw_configs) 2046 set_link_hw_format(link, cfg); 2047 2048 /* flags */ 2049 if (cfg->flag_mask) 2050 set_link_flags(link, cfg->flag_mask, cfg->flags); 2051 2052 /* pass control to component driver for optional further init */ 2053 ret = soc_tplg_dai_link_load(tplg, link); 2054 if (ret < 0) { 2055 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2056 return ret; 2057 } 2058 2059 return 0; 2060 } 2061 2062 2063 /* Load physical link config elements from the topology context */ 2064 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2065 struct snd_soc_tplg_hdr *hdr) 2066 { 2067 struct snd_soc_tplg_link_config *link, *_link; 2068 int count = hdr->count; 2069 int i, ret; 2070 bool abi_match; 2071 2072 if (tplg->pass != SOC_TPLG_PASS_LINK) { 2073 tplg->pos += hdr->size + hdr->payload_size; 2074 return 0; 2075 }; 2076 2077 /* check the element size and count */ 2078 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2079 if (link->size > sizeof(struct snd_soc_tplg_link_config) 2080 || link->size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2081 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2082 link->size); 2083 return -EINVAL; 2084 } 2085 2086 if (soc_tplg_check_elem_count(tplg, 2087 link->size, count, 2088 hdr->payload_size, "physical link config")) { 2089 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2090 count); 2091 return -EINVAL; 2092 } 2093 2094 /* config physical DAI links */ 2095 for (i = 0; i < count; i++) { 2096 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2097 if (link->size == sizeof(*link)) { 2098 abi_match = true; 2099 _link = link; 2100 } else { 2101 abi_match = false; 2102 ret = link_new_ver(tplg, link, &_link); 2103 if (ret < 0) 2104 return ret; 2105 } 2106 2107 ret = soc_tplg_link_config(tplg, _link); 2108 if (ret < 0) 2109 return ret; 2110 2111 /* offset by version-specific struct size and 2112 * real priv data size 2113 */ 2114 tplg->pos += link->size + _link->priv.size; 2115 2116 if (!abi_match) 2117 kfree(_link); /* free the duplicated one */ 2118 } 2119 2120 return 0; 2121 } 2122 2123 /** 2124 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2125 * @tplg: topology context 2126 * @d: physical DAI configs. 2127 * 2128 * The physical dai should already be registered by the platform driver. 2129 * The platform driver should specify the DAI name and ID for matching. 2130 */ 2131 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2132 struct snd_soc_tplg_dai *d) 2133 { 2134 struct snd_soc_dai_link_component dai_component = {0}; 2135 struct snd_soc_dai *dai; 2136 struct snd_soc_dai_driver *dai_drv; 2137 struct snd_soc_pcm_stream *stream; 2138 struct snd_soc_tplg_stream_caps *caps; 2139 int ret; 2140 2141 dai_component.dai_name = d->dai_name; 2142 dai = snd_soc_find_dai(&dai_component); 2143 if (!dai) { 2144 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2145 d->dai_name); 2146 return -EINVAL; 2147 } 2148 2149 if (d->dai_id != dai->id) { 2150 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2151 d->dai_name); 2152 return -EINVAL; 2153 } 2154 2155 dai_drv = dai->driver; 2156 if (!dai_drv) 2157 return -EINVAL; 2158 2159 if (d->playback) { 2160 stream = &dai_drv->playback; 2161 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2162 set_stream_info(stream, caps); 2163 } 2164 2165 if (d->capture) { 2166 stream = &dai_drv->capture; 2167 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2168 set_stream_info(stream, caps); 2169 } 2170 2171 if (d->flag_mask) 2172 set_dai_flags(dai_drv, d->flag_mask, d->flags); 2173 2174 /* pass control to component driver for optional further init */ 2175 ret = soc_tplg_dai_load(tplg, dai_drv); 2176 if (ret < 0) { 2177 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 2178 return ret; 2179 } 2180 2181 return 0; 2182 } 2183 2184 /* load physical DAI elements */ 2185 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2186 struct snd_soc_tplg_hdr *hdr) 2187 { 2188 struct snd_soc_tplg_dai *dai; 2189 int count = hdr->count; 2190 int i; 2191 2192 if (tplg->pass != SOC_TPLG_PASS_BE_DAI) 2193 return 0; 2194 2195 /* config the existing BE DAIs */ 2196 for (i = 0; i < count; i++) { 2197 dai = (struct snd_soc_tplg_dai *)tplg->pos; 2198 if (dai->size != sizeof(*dai)) { 2199 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2200 return -EINVAL; 2201 } 2202 2203 soc_tplg_dai_config(tplg, dai); 2204 tplg->pos += (sizeof(*dai) + dai->priv.size); 2205 } 2206 2207 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2208 return 0; 2209 } 2210 2211 /** 2212 * manifest_new_ver - Create a new version of manifest from the old version 2213 * of source. 2214 * @toplogy: topology context 2215 * @src: old version of manifest as a source 2216 * @manifest: latest version of manifest created from the source 2217 * 2218 * Support from vesion 4. Users need free the returned manifest manually. 2219 */ 2220 static int manifest_new_ver(struct soc_tplg *tplg, 2221 struct snd_soc_tplg_manifest *src, 2222 struct snd_soc_tplg_manifest **manifest) 2223 { 2224 struct snd_soc_tplg_manifest *dest; 2225 struct snd_soc_tplg_manifest_v4 *src_v4; 2226 2227 *manifest = NULL; 2228 2229 if (src->size != sizeof(*src_v4)) { 2230 dev_err(tplg->dev, "ASoC: invalid manifest size\n"); 2231 return -EINVAL; 2232 } 2233 2234 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2235 2236 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2237 dest = kzalloc(sizeof(*dest) + src_v4->priv.size, GFP_KERNEL); 2238 if (!dest) 2239 return -ENOMEM; 2240 2241 dest->size = sizeof(*dest); /* size of latest abi version */ 2242 dest->control_elems = src_v4->control_elems; 2243 dest->widget_elems = src_v4->widget_elems; 2244 dest->graph_elems = src_v4->graph_elems; 2245 dest->pcm_elems = src_v4->pcm_elems; 2246 dest->dai_link_elems = src_v4->dai_link_elems; 2247 dest->priv.size = src_v4->priv.size; 2248 if (dest->priv.size) 2249 memcpy(dest->priv.data, src_v4->priv.data, 2250 src_v4->priv.size); 2251 2252 *manifest = dest; 2253 return 0; 2254 } 2255 2256 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2257 struct snd_soc_tplg_hdr *hdr) 2258 { 2259 struct snd_soc_tplg_manifest *manifest, *_manifest; 2260 bool abi_match; 2261 int err; 2262 2263 if (tplg->pass != SOC_TPLG_PASS_MANIFEST) 2264 return 0; 2265 2266 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2267 2268 /* check ABI version by size, create a new manifest if abi not match */ 2269 if (manifest->size == sizeof(*manifest)) { 2270 abi_match = true; 2271 _manifest = manifest; 2272 } else { 2273 abi_match = false; 2274 err = manifest_new_ver(tplg, manifest, &_manifest); 2275 if (err < 0) 2276 return err; 2277 } 2278 2279 /* pass control to component driver for optional further init */ 2280 if (tplg->comp && tplg->ops && tplg->ops->manifest) 2281 return tplg->ops->manifest(tplg->comp, _manifest); 2282 2283 if (!abi_match) /* free the duplicated one */ 2284 kfree(_manifest); 2285 2286 return 0; 2287 } 2288 2289 /* validate header magic, size and type */ 2290 static int soc_valid_header(struct soc_tplg *tplg, 2291 struct snd_soc_tplg_hdr *hdr) 2292 { 2293 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2294 return 0; 2295 2296 if (hdr->size != sizeof(*hdr)) { 2297 dev_err(tplg->dev, 2298 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2299 hdr->type, soc_tplg_get_hdr_offset(tplg), 2300 tplg->fw->size); 2301 return -EINVAL; 2302 } 2303 2304 /* big endian firmware objects not supported atm */ 2305 if (hdr->magic == cpu_to_be32(SND_SOC_TPLG_MAGIC)) { 2306 dev_err(tplg->dev, 2307 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2308 tplg->pass, hdr->magic, 2309 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2310 return -EINVAL; 2311 } 2312 2313 if (hdr->magic != SND_SOC_TPLG_MAGIC) { 2314 dev_err(tplg->dev, 2315 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2316 tplg->pass, hdr->magic, 2317 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2318 return -EINVAL; 2319 } 2320 2321 /* Support ABI from version 4 */ 2322 if (hdr->abi > SND_SOC_TPLG_ABI_VERSION 2323 || hdr->abi < SND_SOC_TPLG_ABI_VERSION_MIN) { 2324 dev_err(tplg->dev, 2325 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2326 tplg->pass, hdr->abi, 2327 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2328 tplg->fw->size); 2329 return -EINVAL; 2330 } 2331 2332 if (hdr->payload_size == 0) { 2333 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2334 soc_tplg_get_hdr_offset(tplg)); 2335 return -EINVAL; 2336 } 2337 2338 if (tplg->pass == hdr->type) 2339 dev_dbg(tplg->dev, 2340 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2341 hdr->payload_size, hdr->type, hdr->version, 2342 hdr->vendor_type, tplg->pass); 2343 2344 return 1; 2345 } 2346 2347 /* check header type and call appropriate handler */ 2348 static int soc_tplg_load_header(struct soc_tplg *tplg, 2349 struct snd_soc_tplg_hdr *hdr) 2350 { 2351 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2352 2353 /* check for matching ID */ 2354 if (hdr->index != tplg->req_index && 2355 hdr->index != SND_SOC_TPLG_INDEX_ALL) 2356 return 0; 2357 2358 tplg->index = hdr->index; 2359 2360 switch (hdr->type) { 2361 case SND_SOC_TPLG_TYPE_MIXER: 2362 case SND_SOC_TPLG_TYPE_ENUM: 2363 case SND_SOC_TPLG_TYPE_BYTES: 2364 return soc_tplg_kcontrol_elems_load(tplg, hdr); 2365 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2366 return soc_tplg_dapm_graph_elems_load(tplg, hdr); 2367 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2368 return soc_tplg_dapm_widget_elems_load(tplg, hdr); 2369 case SND_SOC_TPLG_TYPE_PCM: 2370 return soc_tplg_pcm_elems_load(tplg, hdr); 2371 case SND_SOC_TPLG_TYPE_DAI: 2372 return soc_tplg_dai_elems_load(tplg, hdr); 2373 case SND_SOC_TPLG_TYPE_DAI_LINK: 2374 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2375 /* physical link configurations */ 2376 return soc_tplg_link_elems_load(tplg, hdr); 2377 case SND_SOC_TPLG_TYPE_MANIFEST: 2378 return soc_tplg_manifest_load(tplg, hdr); 2379 default: 2380 /* bespoke vendor data object */ 2381 return soc_tplg_vendor_load(tplg, hdr); 2382 } 2383 2384 return 0; 2385 } 2386 2387 /* process the topology file headers */ 2388 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2389 { 2390 struct snd_soc_tplg_hdr *hdr; 2391 int ret; 2392 2393 tplg->pass = SOC_TPLG_PASS_START; 2394 2395 /* process the header types from start to end */ 2396 while (tplg->pass <= SOC_TPLG_PASS_END) { 2397 2398 tplg->hdr_pos = tplg->fw->data; 2399 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2400 2401 while (!soc_tplg_is_eof(tplg)) { 2402 2403 /* make sure header is valid before loading */ 2404 ret = soc_valid_header(tplg, hdr); 2405 if (ret < 0) 2406 return ret; 2407 else if (ret == 0) 2408 break; 2409 2410 /* load the header object */ 2411 ret = soc_tplg_load_header(tplg, hdr); 2412 if (ret < 0) 2413 return ret; 2414 2415 /* goto next header */ 2416 tplg->hdr_pos += hdr->payload_size + 2417 sizeof(struct snd_soc_tplg_hdr); 2418 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2419 } 2420 2421 /* next data type pass */ 2422 tplg->pass++; 2423 } 2424 2425 /* signal DAPM we are complete */ 2426 ret = soc_tplg_dapm_complete(tplg); 2427 if (ret < 0) 2428 dev_err(tplg->dev, 2429 "ASoC: failed to initialise DAPM from Firmware\n"); 2430 2431 return ret; 2432 } 2433 2434 static int soc_tplg_load(struct soc_tplg *tplg) 2435 { 2436 int ret; 2437 2438 ret = soc_tplg_process_headers(tplg); 2439 if (ret == 0) 2440 soc_tplg_complete(tplg); 2441 2442 return ret; 2443 } 2444 2445 /* load audio component topology from "firmware" file */ 2446 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2447 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) 2448 { 2449 struct soc_tplg tplg; 2450 2451 /* setup parsing context */ 2452 memset(&tplg, 0, sizeof(tplg)); 2453 tplg.fw = fw; 2454 tplg.dev = comp->dev; 2455 tplg.comp = comp; 2456 tplg.ops = ops; 2457 tplg.req_index = id; 2458 tplg.io_ops = ops->io_ops; 2459 tplg.io_ops_count = ops->io_ops_count; 2460 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2461 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2462 2463 return soc_tplg_load(&tplg); 2464 } 2465 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2466 2467 /* remove this dynamic widget */ 2468 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) 2469 { 2470 /* make sure we are a widget */ 2471 if (w->dobj.type != SND_SOC_DOBJ_WIDGET) 2472 return; 2473 2474 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); 2475 } 2476 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); 2477 2478 /* remove all dynamic widgets from this DAPM context */ 2479 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, 2480 u32 index) 2481 { 2482 struct snd_soc_dapm_widget *w, *next_w; 2483 2484 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { 2485 2486 /* make sure we are a widget with correct context */ 2487 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) 2488 continue; 2489 2490 /* match ID */ 2491 if (w->dobj.index != index && 2492 w->dobj.index != SND_SOC_TPLG_INDEX_ALL) 2493 continue; 2494 /* check and free and dynamic widget kcontrols */ 2495 snd_soc_tplg_widget_remove(w); 2496 snd_soc_dapm_free_widget(w); 2497 } 2498 snd_soc_dapm_reset_cache(dapm); 2499 } 2500 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); 2501 2502 /* remove dynamic controls from the component driver */ 2503 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) 2504 { 2505 struct snd_soc_dobj *dobj, *next_dobj; 2506 int pass = SOC_TPLG_PASS_END; 2507 2508 /* process the header types from end to start */ 2509 while (pass >= SOC_TPLG_PASS_START) { 2510 2511 /* remove mixer controls */ 2512 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2513 list) { 2514 2515 /* match index */ 2516 if (dobj->index != index && 2517 dobj->index != SND_SOC_TPLG_INDEX_ALL) 2518 continue; 2519 2520 switch (dobj->type) { 2521 case SND_SOC_DOBJ_MIXER: 2522 remove_mixer(comp, dobj, pass); 2523 break; 2524 case SND_SOC_DOBJ_ENUM: 2525 remove_enum(comp, dobj, pass); 2526 break; 2527 case SND_SOC_DOBJ_BYTES: 2528 remove_bytes(comp, dobj, pass); 2529 break; 2530 case SND_SOC_DOBJ_WIDGET: 2531 remove_widget(comp, dobj, pass); 2532 break; 2533 case SND_SOC_DOBJ_PCM: 2534 remove_dai(comp, dobj, pass); 2535 break; 2536 case SND_SOC_DOBJ_DAI_LINK: 2537 remove_link(comp, dobj, pass); 2538 break; 2539 default: 2540 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2541 dobj->type); 2542 break; 2543 } 2544 } 2545 pass--; 2546 } 2547 2548 /* let caller know if FW can be freed when no objects are left */ 2549 return !list_empty(&comp->dobj_list); 2550 } 2551 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2552