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 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer}, 246 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler}, 247 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect}, 248 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen}, 249 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src}, 250 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc}, 251 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder}, 252 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder}, 253 }; 254 255 static int tplc_chan_get_reg(struct soc_tplg *tplg, 256 struct snd_soc_tplg_channel *chan, int map) 257 { 258 int i; 259 260 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 261 if (chan[i].id == map) 262 return chan[i].reg; 263 } 264 265 return -EINVAL; 266 } 267 268 static int tplc_chan_get_shift(struct soc_tplg *tplg, 269 struct snd_soc_tplg_channel *chan, int map) 270 { 271 int i; 272 273 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 274 if (chan[i].id == map) 275 return chan[i].shift; 276 } 277 278 return -EINVAL; 279 } 280 281 static int get_widget_id(int tplg_type) 282 { 283 int i; 284 285 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) { 286 if (tplg_type == dapm_map[i].uid) 287 return dapm_map[i].kid; 288 } 289 290 return -EINVAL; 291 } 292 293 static inline void soc_bind_err(struct soc_tplg *tplg, 294 struct snd_soc_tplg_ctl_hdr *hdr, int index) 295 { 296 dev_err(tplg->dev, 297 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n", 298 hdr->ops.get, hdr->ops.put, hdr->ops.info, index, 299 soc_tplg_get_offset(tplg)); 300 } 301 302 static inline void soc_control_err(struct soc_tplg *tplg, 303 struct snd_soc_tplg_ctl_hdr *hdr, const char *name) 304 { 305 dev_err(tplg->dev, 306 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n", 307 name, hdr->ops.get, hdr->ops.put, hdr->ops.info, 308 soc_tplg_get_offset(tplg)); 309 } 310 311 /* pass vendor data to component driver for processing */ 312 static int soc_tplg_vendor_load_(struct soc_tplg *tplg, 313 struct snd_soc_tplg_hdr *hdr) 314 { 315 int ret = 0; 316 317 if (tplg->comp && tplg->ops && tplg->ops->vendor_load) 318 ret = tplg->ops->vendor_load(tplg->comp, hdr); 319 else { 320 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n", 321 hdr->vendor_type); 322 return -EINVAL; 323 } 324 325 if (ret < 0) 326 dev_err(tplg->dev, 327 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n", 328 soc_tplg_get_hdr_offset(tplg), 329 soc_tplg_get_hdr_offset(tplg), 330 hdr->type, hdr->vendor_type); 331 return ret; 332 } 333 334 /* pass vendor data to component driver for processing */ 335 static int soc_tplg_vendor_load(struct soc_tplg *tplg, 336 struct snd_soc_tplg_hdr *hdr) 337 { 338 if (tplg->pass != SOC_TPLG_PASS_VENDOR) 339 return 0; 340 341 return soc_tplg_vendor_load_(tplg, hdr); 342 } 343 344 /* optionally pass new dynamic widget to component driver. This is mainly for 345 * external widgets where we can assign private data/ops */ 346 static int soc_tplg_widget_load(struct soc_tplg *tplg, 347 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 348 { 349 if (tplg->comp && tplg->ops && tplg->ops->widget_load) 350 return tplg->ops->widget_load(tplg->comp, w, tplg_w); 351 352 return 0; 353 } 354 355 /* optionally pass new dynamic widget to component driver. This is mainly for 356 * external widgets where we can assign private data/ops */ 357 static int soc_tplg_widget_ready(struct soc_tplg *tplg, 358 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 359 { 360 if (tplg->comp && tplg->ops && tplg->ops->widget_ready) 361 return tplg->ops->widget_ready(tplg->comp, w, tplg_w); 362 363 return 0; 364 } 365 366 /* pass DAI configurations to component driver for extra initialization */ 367 static int soc_tplg_dai_load(struct soc_tplg *tplg, 368 struct snd_soc_dai_driver *dai_drv) 369 { 370 if (tplg->comp && tplg->ops && tplg->ops->dai_load) 371 return tplg->ops->dai_load(tplg->comp, dai_drv); 372 373 return 0; 374 } 375 376 /* pass link configurations to component driver for extra initialization */ 377 static int soc_tplg_dai_link_load(struct soc_tplg *tplg, 378 struct snd_soc_dai_link *link) 379 { 380 if (tplg->comp && tplg->ops && tplg->ops->link_load) 381 return tplg->ops->link_load(tplg->comp, link); 382 383 return 0; 384 } 385 386 /* tell the component driver that all firmware has been loaded in this request */ 387 static void soc_tplg_complete(struct soc_tplg *tplg) 388 { 389 if (tplg->comp && tplg->ops && tplg->ops->complete) 390 tplg->ops->complete(tplg->comp); 391 } 392 393 /* add a dynamic kcontrol */ 394 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev, 395 const struct snd_kcontrol_new *control_new, const char *prefix, 396 void *data, struct snd_kcontrol **kcontrol) 397 { 398 int err; 399 400 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix); 401 if (*kcontrol == NULL) { 402 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n", 403 control_new->name); 404 return -ENOMEM; 405 } 406 407 err = snd_ctl_add(card, *kcontrol); 408 if (err < 0) { 409 dev_err(dev, "ASoC: Failed to add %s: %d\n", 410 control_new->name, err); 411 return err; 412 } 413 414 return 0; 415 } 416 417 /* add a dynamic kcontrol for component driver */ 418 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg, 419 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol) 420 { 421 struct snd_soc_component *comp = tplg->comp; 422 423 return soc_tplg_add_dcontrol(comp->card->snd_card, 424 comp->dev, k, NULL, comp, kcontrol); 425 } 426 427 /* remove a mixer kcontrol */ 428 static void remove_mixer(struct snd_soc_component *comp, 429 struct snd_soc_dobj *dobj, int pass) 430 { 431 struct snd_card *card = comp->card->snd_card; 432 struct soc_mixer_control *sm = 433 container_of(dobj, struct soc_mixer_control, dobj); 434 const unsigned int *p = NULL; 435 436 if (pass != SOC_TPLG_PASS_MIXER) 437 return; 438 439 if (dobj->ops && dobj->ops->control_unload) 440 dobj->ops->control_unload(comp, dobj); 441 442 if (sm->dobj.control.kcontrol->tlv.p) 443 p = sm->dobj.control.kcontrol->tlv.p; 444 snd_ctl_remove(card, sm->dobj.control.kcontrol); 445 list_del(&sm->dobj.list); 446 kfree(sm); 447 kfree(p); 448 } 449 450 /* remove an enum kcontrol */ 451 static void remove_enum(struct snd_soc_component *comp, 452 struct snd_soc_dobj *dobj, int pass) 453 { 454 struct snd_card *card = comp->card->snd_card; 455 struct soc_enum *se = container_of(dobj, struct soc_enum, dobj); 456 int i; 457 458 if (pass != SOC_TPLG_PASS_MIXER) 459 return; 460 461 if (dobj->ops && dobj->ops->control_unload) 462 dobj->ops->control_unload(comp, dobj); 463 464 snd_ctl_remove(card, se->dobj.control.kcontrol); 465 list_del(&se->dobj.list); 466 467 kfree(se->dobj.control.dvalues); 468 for (i = 0; i < se->items; i++) 469 kfree(se->dobj.control.dtexts[i]); 470 kfree(se); 471 } 472 473 /* remove a byte kcontrol */ 474 static void remove_bytes(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 soc_bytes_ext *sb = 479 container_of(dobj, struct soc_bytes_ext, dobj); 480 481 if (pass != SOC_TPLG_PASS_MIXER) 482 return; 483 484 if (dobj->ops && dobj->ops->control_unload) 485 dobj->ops->control_unload(comp, dobj); 486 487 snd_ctl_remove(card, sb->dobj.control.kcontrol); 488 list_del(&sb->dobj.list); 489 kfree(sb); 490 } 491 492 /* remove a widget and it's kcontrols - routes must be removed first */ 493 static void remove_widget(struct snd_soc_component *comp, 494 struct snd_soc_dobj *dobj, int pass) 495 { 496 struct snd_card *card = comp->card->snd_card; 497 struct snd_soc_dapm_widget *w = 498 container_of(dobj, struct snd_soc_dapm_widget, dobj); 499 int i; 500 501 if (pass != SOC_TPLG_PASS_WIDGET) 502 return; 503 504 if (dobj->ops && dobj->ops->widget_unload) 505 dobj->ops->widget_unload(comp, dobj); 506 507 /* 508 * Dynamic Widgets either have 1..N enum kcontrols or mixers. 509 * The enum may either have an array of values or strings. 510 */ 511 if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) { 512 /* enumerated widget mixer */ 513 for (i = 0; i < w->num_kcontrols; i++) { 514 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 515 struct soc_enum *se = 516 (struct soc_enum *)kcontrol->private_value; 517 int j; 518 519 snd_ctl_remove(card, kcontrol); 520 521 kfree(se->dobj.control.dvalues); 522 for (j = 0; j < se->items; j++) 523 kfree(se->dobj.control.dtexts[j]); 524 525 kfree(se); 526 } 527 kfree(w->kcontrol_news); 528 } else { 529 /* volume mixer or bytes controls */ 530 for (i = 0; i < w->num_kcontrols; i++) { 531 struct snd_kcontrol *kcontrol = w->kcontrols[i]; 532 533 if (dobj->widget.kcontrol_type 534 == SND_SOC_TPLG_TYPE_MIXER) 535 kfree(kcontrol->tlv.p); 536 537 /* Private value is used as struct soc_mixer_control 538 * for volume mixers or soc_bytes_ext for bytes 539 * controls. 540 */ 541 kfree((void *)kcontrol->private_value); 542 snd_ctl_remove(card, kcontrol); 543 } 544 kfree(w->kcontrol_news); 545 } 546 /* widget w is freed by soc-dapm.c */ 547 } 548 549 /* remove DAI configurations */ 550 static void remove_dai(struct snd_soc_component *comp, 551 struct snd_soc_dobj *dobj, int pass) 552 { 553 struct snd_soc_dai_driver *dai_drv = 554 container_of(dobj, struct snd_soc_dai_driver, dobj); 555 556 if (pass != SOC_TPLG_PASS_PCM_DAI) 557 return; 558 559 if (dobj->ops && dobj->ops->dai_unload) 560 dobj->ops->dai_unload(comp, dobj); 561 562 kfree(dai_drv->name); 563 list_del(&dobj->list); 564 kfree(dai_drv); 565 } 566 567 /* remove link configurations */ 568 static void remove_link(struct snd_soc_component *comp, 569 struct snd_soc_dobj *dobj, int pass) 570 { 571 struct snd_soc_dai_link *link = 572 container_of(dobj, struct snd_soc_dai_link, dobj); 573 574 if (pass != SOC_TPLG_PASS_PCM_DAI) 575 return; 576 577 if (dobj->ops && dobj->ops->link_unload) 578 dobj->ops->link_unload(comp, dobj); 579 580 kfree(link->name); 581 kfree(link->stream_name); 582 kfree(link->cpu_dai_name); 583 584 list_del(&dobj->list); 585 snd_soc_remove_dai_link(comp->card, link); 586 kfree(link); 587 } 588 589 /* bind a kcontrol to it's IO handlers */ 590 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr, 591 struct snd_kcontrol_new *k, 592 const struct soc_tplg *tplg) 593 { 594 const struct snd_soc_tplg_kcontrol_ops *ops; 595 const struct snd_soc_tplg_bytes_ext_ops *ext_ops; 596 int num_ops, i; 597 598 if (hdr->ops.info == SND_SOC_TPLG_CTL_BYTES 599 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER 600 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE 601 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 602 struct soc_bytes_ext *sbe; 603 struct snd_soc_tplg_bytes_control *be; 604 605 sbe = (struct soc_bytes_ext *)k->private_value; 606 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr); 607 608 /* TLV bytes controls need standard kcontrol info handler, 609 * TLV callback and extended put/get handlers. 610 */ 611 k->info = snd_soc_bytes_info_ext; 612 k->tlv.c = snd_soc_bytes_tlv_callback; 613 614 ext_ops = tplg->bytes_ext_ops; 615 num_ops = tplg->bytes_ext_ops_count; 616 for (i = 0; i < num_ops; i++) { 617 if (!sbe->put && ext_ops[i].id == be->ext_ops.put) 618 sbe->put = ext_ops[i].put; 619 if (!sbe->get && ext_ops[i].id == be->ext_ops.get) 620 sbe->get = ext_ops[i].get; 621 } 622 623 if (sbe->put && sbe->get) 624 return 0; 625 else 626 return -EINVAL; 627 } 628 629 /* try and map vendor specific kcontrol handlers first */ 630 ops = tplg->io_ops; 631 num_ops = tplg->io_ops_count; 632 for (i = 0; i < num_ops; i++) { 633 634 if (k->put == NULL && ops[i].id == hdr->ops.put) 635 k->put = ops[i].put; 636 if (k->get == NULL && ops[i].id == hdr->ops.get) 637 k->get = ops[i].get; 638 if (k->info == NULL && ops[i].id == hdr->ops.info) 639 k->info = ops[i].info; 640 } 641 642 /* vendor specific handlers found ? */ 643 if (k->put && k->get && k->info) 644 return 0; 645 646 /* none found so try standard kcontrol handlers */ 647 ops = io_ops; 648 num_ops = ARRAY_SIZE(io_ops); 649 for (i = 0; i < num_ops; i++) { 650 651 if (k->put == NULL && ops[i].id == hdr->ops.put) 652 k->put = ops[i].put; 653 if (k->get == NULL && ops[i].id == hdr->ops.get) 654 k->get = ops[i].get; 655 if (k->info == NULL && ops[i].id == hdr->ops.info) 656 k->info = ops[i].info; 657 } 658 659 /* standard handlers found ? */ 660 if (k->put && k->get && k->info) 661 return 0; 662 663 /* nothing to bind */ 664 return -EINVAL; 665 } 666 667 /* bind a widgets to it's evnt handlers */ 668 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w, 669 const struct snd_soc_tplg_widget_events *events, 670 int num_events, u16 event_type) 671 { 672 int i; 673 674 w->event = NULL; 675 676 for (i = 0; i < num_events; i++) { 677 if (event_type == events[i].type) { 678 679 /* found - so assign event */ 680 w->event = events[i].event_handler; 681 return 0; 682 } 683 } 684 685 /* not found */ 686 return -EINVAL; 687 } 688 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event); 689 690 /* optionally pass new dynamic kcontrol to component driver. */ 691 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg, 692 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr) 693 { 694 if (tplg->comp && tplg->ops && tplg->ops->control_load) 695 return tplg->ops->control_load(tplg->comp, k, hdr); 696 697 return 0; 698 } 699 700 701 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg, 702 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale) 703 { 704 unsigned int item_len = 2 * sizeof(unsigned int); 705 unsigned int *p; 706 707 p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL); 708 if (!p) 709 return -ENOMEM; 710 711 p[0] = SNDRV_CTL_TLVT_DB_SCALE; 712 p[1] = item_len; 713 p[2] = scale->min; 714 p[3] = (scale->step & TLV_DB_SCALE_MASK) 715 | (scale->mute ? TLV_DB_SCALE_MUTE : 0); 716 717 kc->tlv.p = (void *)p; 718 return 0; 719 } 720 721 static int soc_tplg_create_tlv(struct soc_tplg *tplg, 722 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc) 723 { 724 struct snd_soc_tplg_ctl_tlv *tplg_tlv; 725 726 if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)) 727 return 0; 728 729 if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) { 730 tplg_tlv = &tc->tlv; 731 switch (tplg_tlv->type) { 732 case SNDRV_CTL_TLVT_DB_SCALE: 733 return soc_tplg_create_tlv_db_scale(tplg, kc, 734 &tplg_tlv->scale); 735 736 /* TODO: add support for other TLV types */ 737 default: 738 dev_dbg(tplg->dev, "Unsupported TLV type %d\n", 739 tplg_tlv->type); 740 return -EINVAL; 741 } 742 } 743 744 return 0; 745 } 746 747 static inline void soc_tplg_free_tlv(struct soc_tplg *tplg, 748 struct snd_kcontrol_new *kc) 749 { 750 kfree(kc->tlv.p); 751 } 752 753 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count, 754 size_t size) 755 { 756 struct snd_soc_tplg_bytes_control *be; 757 struct soc_bytes_ext *sbe; 758 struct snd_kcontrol_new kc; 759 int i, err; 760 761 if (soc_tplg_check_elem_count(tplg, 762 sizeof(struct snd_soc_tplg_bytes_control), count, 763 size, "mixer bytes")) { 764 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n", 765 count); 766 return -EINVAL; 767 } 768 769 for (i = 0; i < count; i++) { 770 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 771 772 /* validate kcontrol */ 773 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 774 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 775 return -EINVAL; 776 777 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 778 if (sbe == NULL) 779 return -ENOMEM; 780 781 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 782 be->priv.size); 783 784 dev_dbg(tplg->dev, 785 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 786 be->hdr.name, be->hdr.access); 787 788 memset(&kc, 0, sizeof(kc)); 789 kc.name = be->hdr.name; 790 kc.private_value = (long)sbe; 791 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 792 kc.access = be->hdr.access; 793 794 sbe->max = be->max; 795 sbe->dobj.type = SND_SOC_DOBJ_BYTES; 796 sbe->dobj.ops = tplg->ops; 797 INIT_LIST_HEAD(&sbe->dobj.list); 798 799 /* map io handlers */ 800 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg); 801 if (err) { 802 soc_control_err(tplg, &be->hdr, be->hdr.name); 803 kfree(sbe); 804 continue; 805 } 806 807 /* pass control to driver for optional further init */ 808 err = soc_tplg_init_kcontrol(tplg, &kc, 809 (struct snd_soc_tplg_ctl_hdr *)be); 810 if (err < 0) { 811 dev_err(tplg->dev, "ASoC: failed to init %s\n", 812 be->hdr.name); 813 kfree(sbe); 814 continue; 815 } 816 817 /* register control here */ 818 err = soc_tplg_add_kcontrol(tplg, &kc, 819 &sbe->dobj.control.kcontrol); 820 if (err < 0) { 821 dev_err(tplg->dev, "ASoC: failed to add %s\n", 822 be->hdr.name); 823 kfree(sbe); 824 continue; 825 } 826 827 list_add(&sbe->dobj.list, &tplg->comp->dobj_list); 828 } 829 return 0; 830 831 } 832 833 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count, 834 size_t size) 835 { 836 struct snd_soc_tplg_mixer_control *mc; 837 struct soc_mixer_control *sm; 838 struct snd_kcontrol_new kc; 839 int i, err; 840 841 if (soc_tplg_check_elem_count(tplg, 842 sizeof(struct snd_soc_tplg_mixer_control), 843 count, size, "mixers")) { 844 845 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n", 846 count); 847 return -EINVAL; 848 } 849 850 for (i = 0; i < count; i++) { 851 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 852 853 /* validate kcontrol */ 854 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 855 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 856 return -EINVAL; 857 858 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 859 if (sm == NULL) 860 return -ENOMEM; 861 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 862 mc->priv.size); 863 864 dev_dbg(tplg->dev, 865 "ASoC: adding mixer kcontrol %s with access 0x%x\n", 866 mc->hdr.name, mc->hdr.access); 867 868 memset(&kc, 0, sizeof(kc)); 869 kc.name = mc->hdr.name; 870 kc.private_value = (long)sm; 871 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 872 kc.access = mc->hdr.access; 873 874 /* we only support FL/FR channel mapping atm */ 875 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 876 SNDRV_CHMAP_FL); 877 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 878 SNDRV_CHMAP_FR); 879 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 880 SNDRV_CHMAP_FL); 881 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 882 SNDRV_CHMAP_FR); 883 884 sm->max = mc->max; 885 sm->min = mc->min; 886 sm->invert = mc->invert; 887 sm->platform_max = mc->platform_max; 888 sm->dobj.index = tplg->index; 889 sm->dobj.ops = tplg->ops; 890 sm->dobj.type = SND_SOC_DOBJ_MIXER; 891 INIT_LIST_HEAD(&sm->dobj.list); 892 893 /* map io handlers */ 894 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg); 895 if (err) { 896 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 897 kfree(sm); 898 continue; 899 } 900 901 /* pass control to driver for optional further init */ 902 err = soc_tplg_init_kcontrol(tplg, &kc, 903 (struct snd_soc_tplg_ctl_hdr *) mc); 904 if (err < 0) { 905 dev_err(tplg->dev, "ASoC: failed to init %s\n", 906 mc->hdr.name); 907 kfree(sm); 908 continue; 909 } 910 911 /* create any TLV data */ 912 soc_tplg_create_tlv(tplg, &kc, &mc->hdr); 913 914 /* register control here */ 915 err = soc_tplg_add_kcontrol(tplg, &kc, 916 &sm->dobj.control.kcontrol); 917 if (err < 0) { 918 dev_err(tplg->dev, "ASoC: failed to add %s\n", 919 mc->hdr.name); 920 soc_tplg_free_tlv(tplg, &kc); 921 kfree(sm); 922 continue; 923 } 924 925 list_add(&sm->dobj.list, &tplg->comp->dobj_list); 926 } 927 928 return 0; 929 } 930 931 static int soc_tplg_denum_create_texts(struct soc_enum *se, 932 struct snd_soc_tplg_enum_control *ec) 933 { 934 int i, ret; 935 936 se->dobj.control.dtexts = 937 kzalloc(sizeof(char *) * ec->items, GFP_KERNEL); 938 if (se->dobj.control.dtexts == NULL) 939 return -ENOMEM; 940 941 for (i = 0; i < ec->items; i++) { 942 943 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 944 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 945 ret = -EINVAL; 946 goto err; 947 } 948 949 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL); 950 if (!se->dobj.control.dtexts[i]) { 951 ret = -ENOMEM; 952 goto err; 953 } 954 } 955 956 se->texts = (const char * const *)se->dobj.control.dtexts; 957 return 0; 958 959 err: 960 for (--i; i >= 0; i--) 961 kfree(se->dobj.control.dtexts[i]); 962 kfree(se->dobj.control.dtexts); 963 return ret; 964 } 965 966 static int soc_tplg_denum_create_values(struct soc_enum *se, 967 struct snd_soc_tplg_enum_control *ec) 968 { 969 if (ec->items > sizeof(*ec->values)) 970 return -EINVAL; 971 972 se->dobj.control.dvalues = kmemdup(ec->values, 973 ec->items * sizeof(u32), 974 GFP_KERNEL); 975 if (!se->dobj.control.dvalues) 976 return -ENOMEM; 977 978 return 0; 979 } 980 981 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count, 982 size_t size) 983 { 984 struct snd_soc_tplg_enum_control *ec; 985 struct soc_enum *se; 986 struct snd_kcontrol_new kc; 987 int i, ret, err; 988 989 if (soc_tplg_check_elem_count(tplg, 990 sizeof(struct snd_soc_tplg_enum_control), 991 count, size, "enums")) { 992 993 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n", 994 count); 995 return -EINVAL; 996 } 997 998 for (i = 0; i < count; i++) { 999 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1000 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1001 ec->priv.size); 1002 1003 /* validate kcontrol */ 1004 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1005 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1006 return -EINVAL; 1007 1008 se = kzalloc((sizeof(*se)), GFP_KERNEL); 1009 if (se == NULL) 1010 return -ENOMEM; 1011 1012 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", 1013 ec->hdr.name, ec->items); 1014 1015 memset(&kc, 0, sizeof(kc)); 1016 kc.name = ec->hdr.name; 1017 kc.private_value = (long)se; 1018 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1019 kc.access = ec->hdr.access; 1020 1021 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1022 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1023 SNDRV_CHMAP_FL); 1024 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1025 SNDRV_CHMAP_FL); 1026 1027 se->items = ec->items; 1028 se->mask = ec->mask; 1029 se->dobj.index = tplg->index; 1030 se->dobj.type = SND_SOC_DOBJ_ENUM; 1031 se->dobj.ops = tplg->ops; 1032 INIT_LIST_HEAD(&se->dobj.list); 1033 1034 switch (ec->hdr.ops.info) { 1035 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1036 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1037 err = soc_tplg_denum_create_values(se, ec); 1038 if (err < 0) { 1039 dev_err(tplg->dev, 1040 "ASoC: could not create values for %s\n", 1041 ec->hdr.name); 1042 kfree(se); 1043 continue; 1044 } 1045 /* fall through and create texts */ 1046 case SND_SOC_TPLG_CTL_ENUM: 1047 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1048 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1049 err = soc_tplg_denum_create_texts(se, ec); 1050 if (err < 0) { 1051 dev_err(tplg->dev, 1052 "ASoC: could not create texts for %s\n", 1053 ec->hdr.name); 1054 kfree(se); 1055 continue; 1056 } 1057 break; 1058 default: 1059 dev_err(tplg->dev, 1060 "ASoC: invalid enum control type %d for %s\n", 1061 ec->hdr.ops.info, ec->hdr.name); 1062 kfree(se); 1063 continue; 1064 } 1065 1066 /* map io handlers */ 1067 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg); 1068 if (err) { 1069 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1070 kfree(se); 1071 continue; 1072 } 1073 1074 /* pass control to driver for optional further init */ 1075 err = soc_tplg_init_kcontrol(tplg, &kc, 1076 (struct snd_soc_tplg_ctl_hdr *) ec); 1077 if (err < 0) { 1078 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1079 ec->hdr.name); 1080 kfree(se); 1081 continue; 1082 } 1083 1084 /* register control here */ 1085 ret = soc_tplg_add_kcontrol(tplg, 1086 &kc, &se->dobj.control.kcontrol); 1087 if (ret < 0) { 1088 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n", 1089 ec->hdr.name); 1090 kfree(se); 1091 continue; 1092 } 1093 1094 list_add(&se->dobj.list, &tplg->comp->dobj_list); 1095 } 1096 1097 return 0; 1098 } 1099 1100 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 1101 struct snd_soc_tplg_hdr *hdr) 1102 { 1103 struct snd_soc_tplg_ctl_hdr *control_hdr; 1104 int i; 1105 1106 if (tplg->pass != SOC_TPLG_PASS_MIXER) { 1107 tplg->pos += hdr->size + hdr->payload_size; 1108 return 0; 1109 } 1110 1111 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 1112 soc_tplg_get_offset(tplg)); 1113 1114 for (i = 0; i < hdr->count; i++) { 1115 1116 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1117 1118 if (control_hdr->size != sizeof(*control_hdr)) { 1119 dev_err(tplg->dev, "ASoC: invalid control size\n"); 1120 return -EINVAL; 1121 } 1122 1123 switch (control_hdr->ops.info) { 1124 case SND_SOC_TPLG_CTL_VOLSW: 1125 case SND_SOC_TPLG_CTL_STROBE: 1126 case SND_SOC_TPLG_CTL_VOLSW_SX: 1127 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1128 case SND_SOC_TPLG_CTL_RANGE: 1129 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1130 case SND_SOC_TPLG_DAPM_CTL_PIN: 1131 soc_tplg_dmixer_create(tplg, 1, hdr->payload_size); 1132 break; 1133 case SND_SOC_TPLG_CTL_ENUM: 1134 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1135 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1136 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1137 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1138 soc_tplg_denum_create(tplg, 1, hdr->payload_size); 1139 break; 1140 case SND_SOC_TPLG_CTL_BYTES: 1141 soc_tplg_dbytes_create(tplg, 1, hdr->payload_size); 1142 break; 1143 default: 1144 soc_bind_err(tplg, control_hdr, i); 1145 return -EINVAL; 1146 } 1147 } 1148 1149 return 0; 1150 } 1151 1152 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1153 struct snd_soc_tplg_hdr *hdr) 1154 { 1155 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1156 struct snd_soc_dapm_route route; 1157 struct snd_soc_tplg_dapm_graph_elem *elem; 1158 int count = hdr->count, i; 1159 1160 if (tplg->pass != SOC_TPLG_PASS_GRAPH) { 1161 tplg->pos += hdr->size + hdr->payload_size; 1162 return 0; 1163 } 1164 1165 if (soc_tplg_check_elem_count(tplg, 1166 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1167 count, hdr->payload_size, "graph")) { 1168 1169 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n", 1170 count); 1171 return -EINVAL; 1172 } 1173 1174 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, 1175 hdr->index); 1176 1177 for (i = 0; i < count; i++) { 1178 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1179 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1180 1181 /* validate routes */ 1182 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1183 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1184 return -EINVAL; 1185 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1186 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1187 return -EINVAL; 1188 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1189 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1190 return -EINVAL; 1191 1192 route.source = elem->source; 1193 route.sink = elem->sink; 1194 route.connected = NULL; /* set to NULL atm for tplg users */ 1195 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0) 1196 route.control = NULL; 1197 else 1198 route.control = elem->control; 1199 1200 /* add route, but keep going if some fail */ 1201 snd_soc_dapm_add_routes(dapm, &route, 1); 1202 } 1203 1204 return 0; 1205 } 1206 1207 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create( 1208 struct soc_tplg *tplg, int num_kcontrols) 1209 { 1210 struct snd_kcontrol_new *kc; 1211 struct soc_mixer_control *sm; 1212 struct snd_soc_tplg_mixer_control *mc; 1213 int i, err; 1214 1215 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1216 if (kc == NULL) 1217 return NULL; 1218 1219 for (i = 0; i < num_kcontrols; i++) { 1220 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 1221 sm = kzalloc(sizeof(*sm), GFP_KERNEL); 1222 if (sm == NULL) 1223 goto err; 1224 1225 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) + 1226 mc->priv.size); 1227 1228 /* validate kcontrol */ 1229 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1230 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1231 goto err_str; 1232 1233 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n", 1234 mc->hdr.name, i); 1235 1236 kc[i].name = mc->hdr.name; 1237 kc[i].private_value = (long)sm; 1238 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1239 kc[i].access = mc->hdr.access; 1240 1241 /* we only support FL/FR channel mapping atm */ 1242 sm->reg = tplc_chan_get_reg(tplg, mc->channel, 1243 SNDRV_CHMAP_FL); 1244 sm->rreg = tplc_chan_get_reg(tplg, mc->channel, 1245 SNDRV_CHMAP_FR); 1246 sm->shift = tplc_chan_get_shift(tplg, mc->channel, 1247 SNDRV_CHMAP_FL); 1248 sm->rshift = tplc_chan_get_shift(tplg, mc->channel, 1249 SNDRV_CHMAP_FR); 1250 1251 sm->max = mc->max; 1252 sm->min = mc->min; 1253 sm->invert = mc->invert; 1254 sm->platform_max = mc->platform_max; 1255 sm->dobj.index = tplg->index; 1256 INIT_LIST_HEAD(&sm->dobj.list); 1257 1258 /* map io handlers */ 1259 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg); 1260 if (err) { 1261 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 1262 kfree(sm); 1263 continue; 1264 } 1265 1266 /* pass control to driver for optional further init */ 1267 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1268 (struct snd_soc_tplg_ctl_hdr *)mc); 1269 if (err < 0) { 1270 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1271 mc->hdr.name); 1272 kfree(sm); 1273 continue; 1274 } 1275 } 1276 return kc; 1277 1278 err_str: 1279 kfree(sm); 1280 err: 1281 for (--i; i >= 0; i--) 1282 kfree((void *)kc[i].private_value); 1283 kfree(kc); 1284 return NULL; 1285 } 1286 1287 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create( 1288 struct soc_tplg *tplg, int num_kcontrols) 1289 { 1290 struct snd_kcontrol_new *kc; 1291 struct snd_soc_tplg_enum_control *ec; 1292 struct soc_enum *se; 1293 int i, j, err; 1294 1295 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL); 1296 if (kc == NULL) 1297 return NULL; 1298 1299 for (i = 0; i < num_kcontrols; i++) { 1300 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 1301 /* validate kcontrol */ 1302 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1303 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1304 return NULL; 1305 1306 se = kzalloc(sizeof(*se), GFP_KERNEL); 1307 if (se == NULL) 1308 goto err; 1309 1310 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n", 1311 ec->hdr.name); 1312 1313 kc[i].name = ec->hdr.name; 1314 kc[i].private_value = (long)se; 1315 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1316 kc[i].access = ec->hdr.access; 1317 1318 /* we only support FL/FR channel mapping atm */ 1319 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 1320 se->shift_l = tplc_chan_get_shift(tplg, ec->channel, 1321 SNDRV_CHMAP_FL); 1322 se->shift_r = tplc_chan_get_shift(tplg, ec->channel, 1323 SNDRV_CHMAP_FR); 1324 1325 se->items = ec->items; 1326 se->mask = ec->mask; 1327 se->dobj.index = tplg->index; 1328 1329 switch (ec->hdr.ops.info) { 1330 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1331 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1332 err = soc_tplg_denum_create_values(se, ec); 1333 if (err < 0) { 1334 dev_err(tplg->dev, "ASoC: could not create values for %s\n", 1335 ec->hdr.name); 1336 goto err_se; 1337 } 1338 /* fall through to create texts */ 1339 case SND_SOC_TPLG_CTL_ENUM: 1340 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1341 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1342 err = soc_tplg_denum_create_texts(se, ec); 1343 if (err < 0) { 1344 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", 1345 ec->hdr.name); 1346 goto err_se; 1347 } 1348 break; 1349 default: 1350 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 1351 ec->hdr.ops.info, ec->hdr.name); 1352 goto err_se; 1353 } 1354 1355 /* map io handlers */ 1356 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg); 1357 if (err) { 1358 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 1359 goto err_se; 1360 } 1361 1362 /* pass control to driver for optional further init */ 1363 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1364 (struct snd_soc_tplg_ctl_hdr *)ec); 1365 if (err < 0) { 1366 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1367 ec->hdr.name); 1368 goto err_se; 1369 } 1370 1371 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + 1372 ec->priv.size); 1373 } 1374 1375 return kc; 1376 1377 err_se: 1378 for (; i >= 0; i--) { 1379 /* free values and texts */ 1380 se = (struct soc_enum *)kc[i].private_value; 1381 kfree(se->dobj.control.dvalues); 1382 for (j = 0; j < ec->items; j++) 1383 kfree(se->dobj.control.dtexts[j]); 1384 1385 kfree(se); 1386 } 1387 err: 1388 kfree(kc); 1389 1390 return NULL; 1391 } 1392 1393 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create( 1394 struct soc_tplg *tplg, int count) 1395 { 1396 struct snd_soc_tplg_bytes_control *be; 1397 struct soc_bytes_ext *sbe; 1398 struct snd_kcontrol_new *kc; 1399 int i, err; 1400 1401 kc = kcalloc(count, sizeof(*kc), GFP_KERNEL); 1402 if (!kc) 1403 return NULL; 1404 1405 for (i = 0; i < count; i++) { 1406 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1407 1408 /* validate kcontrol */ 1409 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1410 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1411 goto err; 1412 1413 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 1414 if (sbe == NULL) 1415 goto err; 1416 1417 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1418 be->priv.size); 1419 1420 dev_dbg(tplg->dev, 1421 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1422 be->hdr.name, be->hdr.access); 1423 1424 kc[i].name = be->hdr.name; 1425 kc[i].private_value = (long)sbe; 1426 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1427 kc[i].access = be->hdr.access; 1428 1429 sbe->max = be->max; 1430 INIT_LIST_HEAD(&sbe->dobj.list); 1431 1432 /* map standard io handlers and check for external handlers */ 1433 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg); 1434 if (err) { 1435 soc_control_err(tplg, &be->hdr, be->hdr.name); 1436 kfree(sbe); 1437 continue; 1438 } 1439 1440 /* pass control to driver for optional further init */ 1441 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1442 (struct snd_soc_tplg_ctl_hdr *)be); 1443 if (err < 0) { 1444 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1445 be->hdr.name); 1446 kfree(sbe); 1447 continue; 1448 } 1449 } 1450 1451 return kc; 1452 1453 err: 1454 for (--i; i >= 0; i--) 1455 kfree((void *)kc[i].private_value); 1456 1457 kfree(kc); 1458 return NULL; 1459 } 1460 1461 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1462 struct snd_soc_tplg_dapm_widget *w) 1463 { 1464 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1465 struct snd_soc_dapm_widget template, *widget; 1466 struct snd_soc_tplg_ctl_hdr *control_hdr; 1467 struct snd_soc_card *card = tplg->comp->card; 1468 unsigned int kcontrol_type; 1469 int ret = 0; 1470 1471 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1472 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1473 return -EINVAL; 1474 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1475 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1476 return -EINVAL; 1477 1478 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1479 w->name, w->id); 1480 1481 memset(&template, 0, sizeof(template)); 1482 1483 /* map user to kernel widget ID */ 1484 template.id = get_widget_id(w->id); 1485 if (template.id < 0) 1486 return template.id; 1487 1488 /* strings are allocated here, but used and freed by the widget */ 1489 template.name = kstrdup(w->name, GFP_KERNEL); 1490 if (!template.name) 1491 return -ENOMEM; 1492 template.sname = kstrdup(w->sname, GFP_KERNEL); 1493 if (!template.sname) { 1494 ret = -ENOMEM; 1495 goto err; 1496 } 1497 template.reg = w->reg; 1498 template.shift = w->shift; 1499 template.mask = w->mask; 1500 template.subseq = w->subseq; 1501 template.on_val = w->invert ? 0 : 1; 1502 template.off_val = w->invert ? 1 : 0; 1503 template.ignore_suspend = w->ignore_suspend; 1504 template.event_flags = w->event_flags; 1505 template.dobj.index = tplg->index; 1506 1507 tplg->pos += 1508 (sizeof(struct snd_soc_tplg_dapm_widget) + w->priv.size); 1509 if (w->num_kcontrols == 0) { 1510 kcontrol_type = 0; 1511 template.num_kcontrols = 0; 1512 goto widget; 1513 } 1514 1515 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1516 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n", 1517 w->name, w->num_kcontrols, control_hdr->type); 1518 1519 switch (control_hdr->ops.info) { 1520 case SND_SOC_TPLG_CTL_VOLSW: 1521 case SND_SOC_TPLG_CTL_STROBE: 1522 case SND_SOC_TPLG_CTL_VOLSW_SX: 1523 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1524 case SND_SOC_TPLG_CTL_RANGE: 1525 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1526 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */ 1527 template.num_kcontrols = w->num_kcontrols; 1528 template.kcontrol_news = 1529 soc_tplg_dapm_widget_dmixer_create(tplg, 1530 template.num_kcontrols); 1531 if (!template.kcontrol_news) { 1532 ret = -ENOMEM; 1533 goto hdr_err; 1534 } 1535 break; 1536 case SND_SOC_TPLG_CTL_ENUM: 1537 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1538 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1539 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1540 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1541 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */ 1542 template.num_kcontrols = w->num_kcontrols; 1543 template.kcontrol_news = 1544 soc_tplg_dapm_widget_denum_create(tplg, 1545 template.num_kcontrols); 1546 if (!template.kcontrol_news) { 1547 ret = -ENOMEM; 1548 goto hdr_err; 1549 } 1550 break; 1551 case SND_SOC_TPLG_CTL_BYTES: 1552 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */ 1553 template.num_kcontrols = w->num_kcontrols; 1554 template.kcontrol_news = 1555 soc_tplg_dapm_widget_dbytes_create(tplg, 1556 template.num_kcontrols); 1557 if (!template.kcontrol_news) { 1558 ret = -ENOMEM; 1559 goto hdr_err; 1560 } 1561 break; 1562 default: 1563 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1564 control_hdr->ops.get, control_hdr->ops.put, 1565 control_hdr->ops.info); 1566 ret = -EINVAL; 1567 goto hdr_err; 1568 } 1569 1570 widget: 1571 ret = soc_tplg_widget_load(tplg, &template, w); 1572 if (ret < 0) 1573 goto hdr_err; 1574 1575 /* card dapm mutex is held by the core if we are loading topology 1576 * data during sound card init. */ 1577 if (card->instantiated) 1578 widget = snd_soc_dapm_new_control(dapm, &template); 1579 else 1580 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1581 if (IS_ERR(widget)) { 1582 ret = PTR_ERR(widget); 1583 /* Do not nag about probe deferrals */ 1584 if (ret != -EPROBE_DEFER) 1585 dev_err(tplg->dev, 1586 "ASoC: failed to create widget %s controls (%d)\n", 1587 w->name, ret); 1588 goto hdr_err; 1589 } 1590 if (widget == NULL) { 1591 dev_err(tplg->dev, "ASoC: failed to create widget %s controls\n", 1592 w->name); 1593 ret = -ENOMEM; 1594 goto hdr_err; 1595 } 1596 1597 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1598 widget->dobj.widget.kcontrol_type = kcontrol_type; 1599 widget->dobj.ops = tplg->ops; 1600 widget->dobj.index = tplg->index; 1601 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1602 1603 ret = soc_tplg_widget_ready(tplg, widget, w); 1604 if (ret < 0) 1605 goto ready_err; 1606 1607 return 0; 1608 1609 ready_err: 1610 snd_soc_tplg_widget_remove(widget); 1611 snd_soc_dapm_free_widget(widget); 1612 hdr_err: 1613 kfree(template.sname); 1614 err: 1615 kfree(template.name); 1616 return ret; 1617 } 1618 1619 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1620 struct snd_soc_tplg_hdr *hdr) 1621 { 1622 struct snd_soc_tplg_dapm_widget *widget; 1623 int ret, count = hdr->count, i; 1624 1625 if (tplg->pass != SOC_TPLG_PASS_WIDGET) 1626 return 0; 1627 1628 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1629 1630 for (i = 0; i < count; i++) { 1631 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1632 if (widget->size != sizeof(*widget)) { 1633 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1634 return -EINVAL; 1635 } 1636 1637 ret = soc_tplg_dapm_widget_create(tplg, widget); 1638 if (ret < 0) { 1639 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1640 widget->name); 1641 return ret; 1642 } 1643 } 1644 1645 return 0; 1646 } 1647 1648 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1649 { 1650 struct snd_soc_card *card = tplg->comp->card; 1651 int ret; 1652 1653 /* Card might not have been registered at this point. 1654 * If so, just return success. 1655 */ 1656 if (!card || !card->instantiated) { 1657 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1658 " widget card binding deferred\n"); 1659 return 0; 1660 } 1661 1662 ret = snd_soc_dapm_new_widgets(card); 1663 if (ret < 0) 1664 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1665 ret); 1666 1667 return 0; 1668 } 1669 1670 static void set_stream_info(struct snd_soc_pcm_stream *stream, 1671 struct snd_soc_tplg_stream_caps *caps) 1672 { 1673 stream->stream_name = kstrdup(caps->name, GFP_KERNEL); 1674 stream->channels_min = caps->channels_min; 1675 stream->channels_max = caps->channels_max; 1676 stream->rates = caps->rates; 1677 stream->rate_min = caps->rate_min; 1678 stream->rate_max = caps->rate_max; 1679 stream->formats = caps->formats; 1680 stream->sig_bits = caps->sig_bits; 1681 } 1682 1683 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1684 unsigned int flag_mask, unsigned int flags) 1685 { 1686 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1687 dai_drv->symmetric_rates = 1688 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1689 1690 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1691 dai_drv->symmetric_channels = 1692 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ? 1693 1 : 0; 1694 1695 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1696 dai_drv->symmetric_samplebits = 1697 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1698 1 : 0; 1699 } 1700 1701 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1702 struct snd_soc_tplg_pcm *pcm) 1703 { 1704 struct snd_soc_dai_driver *dai_drv; 1705 struct snd_soc_pcm_stream *stream; 1706 struct snd_soc_tplg_stream_caps *caps; 1707 int ret; 1708 1709 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1710 if (dai_drv == NULL) 1711 return -ENOMEM; 1712 1713 if (strlen(pcm->dai_name)) 1714 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL); 1715 dai_drv->id = pcm->dai_id; 1716 1717 if (pcm->playback) { 1718 stream = &dai_drv->playback; 1719 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1720 set_stream_info(stream, caps); 1721 } 1722 1723 if (pcm->capture) { 1724 stream = &dai_drv->capture; 1725 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1726 set_stream_info(stream, caps); 1727 } 1728 1729 /* pass control to component driver for optional further init */ 1730 ret = soc_tplg_dai_load(tplg, dai_drv); 1731 if (ret < 0) { 1732 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 1733 kfree(dai_drv); 1734 return ret; 1735 } 1736 1737 dai_drv->dobj.index = tplg->index; 1738 dai_drv->dobj.ops = tplg->ops; 1739 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1740 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1741 1742 /* register the DAI to the component */ 1743 return snd_soc_register_dai(tplg->comp, dai_drv); 1744 } 1745 1746 static void set_link_flags(struct snd_soc_dai_link *link, 1747 unsigned int flag_mask, unsigned int flags) 1748 { 1749 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1750 link->symmetric_rates = 1751 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1752 1753 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1754 link->symmetric_channels = 1755 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ? 1756 1 : 0; 1757 1758 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1759 link->symmetric_samplebits = 1760 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1761 1 : 0; 1762 1763 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1764 link->ignore_suspend = 1765 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ? 1766 1 : 0; 1767 } 1768 1769 /* create the FE DAI link */ 1770 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1771 struct snd_soc_tplg_pcm *pcm) 1772 { 1773 struct snd_soc_dai_link *link; 1774 int ret; 1775 1776 link = kzalloc(sizeof(struct snd_soc_dai_link), GFP_KERNEL); 1777 if (link == NULL) 1778 return -ENOMEM; 1779 1780 if (strlen(pcm->pcm_name)) { 1781 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1782 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1783 } 1784 link->id = pcm->pcm_id; 1785 1786 if (strlen(pcm->dai_name)) 1787 link->cpu_dai_name = kstrdup(pcm->dai_name, GFP_KERNEL); 1788 1789 link->codec_name = "snd-soc-dummy"; 1790 link->codec_dai_name = "snd-soc-dummy-dai"; 1791 1792 /* enable DPCM */ 1793 link->dynamic = 1; 1794 link->dpcm_playback = pcm->playback; 1795 link->dpcm_capture = pcm->capture; 1796 if (pcm->flag_mask) 1797 set_link_flags(link, pcm->flag_mask, pcm->flags); 1798 1799 /* pass control to component driver for optional further init */ 1800 ret = soc_tplg_dai_link_load(tplg, link); 1801 if (ret < 0) { 1802 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n"); 1803 kfree(link); 1804 return ret; 1805 } 1806 1807 link->dobj.index = tplg->index; 1808 link->dobj.ops = tplg->ops; 1809 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1810 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1811 1812 snd_soc_add_dai_link(tplg->comp->card, link); 1813 return 0; 1814 } 1815 1816 /* create a FE DAI and DAI link from the PCM object */ 1817 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1818 struct snd_soc_tplg_pcm *pcm) 1819 { 1820 int ret; 1821 1822 ret = soc_tplg_dai_create(tplg, pcm); 1823 if (ret < 0) 1824 return ret; 1825 1826 return soc_tplg_fe_link_create(tplg, pcm); 1827 } 1828 1829 /* copy stream caps from the old version 4 of source */ 1830 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 1831 struct snd_soc_tplg_stream_caps_v4 *src) 1832 { 1833 dest->size = sizeof(*dest); 1834 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1835 dest->formats = src->formats; 1836 dest->rates = src->rates; 1837 dest->rate_min = src->rate_min; 1838 dest->rate_max = src->rate_max; 1839 dest->channels_min = src->channels_min; 1840 dest->channels_max = src->channels_max; 1841 dest->periods_min = src->periods_min; 1842 dest->periods_max = src->periods_max; 1843 dest->period_size_min = src->period_size_min; 1844 dest->period_size_max = src->period_size_max; 1845 dest->buffer_size_min = src->buffer_size_min; 1846 dest->buffer_size_max = src->buffer_size_max; 1847 } 1848 1849 /** 1850 * pcm_new_ver - Create the new version of PCM from the old version. 1851 * @tplg: topology context 1852 * @src: older version of pcm as a source 1853 * @pcm: latest version of pcm created from the source 1854 * 1855 * Support from vesion 4. User should free the returned pcm manually. 1856 */ 1857 static int pcm_new_ver(struct soc_tplg *tplg, 1858 struct snd_soc_tplg_pcm *src, 1859 struct snd_soc_tplg_pcm **pcm) 1860 { 1861 struct snd_soc_tplg_pcm *dest; 1862 struct snd_soc_tplg_pcm_v4 *src_v4; 1863 int i; 1864 1865 *pcm = NULL; 1866 1867 if (src->size != sizeof(*src_v4)) { 1868 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 1869 return -EINVAL; 1870 } 1871 1872 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 1873 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 1874 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1875 if (!dest) 1876 return -ENOMEM; 1877 1878 dest->size = sizeof(*dest); /* size of latest abi version */ 1879 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1880 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1881 dest->pcm_id = src_v4->pcm_id; 1882 dest->dai_id = src_v4->dai_id; 1883 dest->playback = src_v4->playback; 1884 dest->capture = src_v4->capture; 1885 dest->compress = src_v4->compress; 1886 dest->num_streams = src_v4->num_streams; 1887 for (i = 0; i < dest->num_streams; i++) 1888 memcpy(&dest->stream[i], &src_v4->stream[i], 1889 sizeof(struct snd_soc_tplg_stream)); 1890 1891 for (i = 0; i < 2; i++) 1892 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 1893 1894 *pcm = dest; 1895 return 0; 1896 } 1897 1898 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1899 struct snd_soc_tplg_hdr *hdr) 1900 { 1901 struct snd_soc_tplg_pcm *pcm, *_pcm; 1902 int count = hdr->count; 1903 int i; 1904 bool abi_match; 1905 1906 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI) 1907 return 0; 1908 1909 /* check the element size and count */ 1910 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1911 if (pcm->size > sizeof(struct snd_soc_tplg_pcm) 1912 || pcm->size < sizeof(struct snd_soc_tplg_pcm_v4)) { 1913 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1914 pcm->size); 1915 return -EINVAL; 1916 } 1917 1918 if (soc_tplg_check_elem_count(tplg, 1919 pcm->size, count, 1920 hdr->payload_size, "PCM DAI")) { 1921 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 1922 count); 1923 return -EINVAL; 1924 } 1925 1926 for (i = 0; i < count; i++) { 1927 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1928 1929 /* check ABI version by size, create a new version of pcm 1930 * if abi not match. 1931 */ 1932 if (pcm->size == sizeof(*pcm)) { 1933 abi_match = true; 1934 _pcm = pcm; 1935 } else { 1936 abi_match = false; 1937 pcm_new_ver(tplg, pcm, &_pcm); 1938 } 1939 1940 /* create the FE DAIs and DAI links */ 1941 soc_tplg_pcm_create(tplg, _pcm); 1942 1943 /* offset by version-specific struct size and 1944 * real priv data size 1945 */ 1946 tplg->pos += pcm->size + _pcm->priv.size; 1947 1948 if (!abi_match) 1949 kfree(_pcm); /* free the duplicated one */ 1950 } 1951 1952 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1953 1954 return 0; 1955 } 1956 1957 /** 1958 * set_link_hw_format - Set the HW audio format of the physical DAI link. 1959 * @link: &snd_soc_dai_link which should be updated 1960 * @cfg: physical link configs. 1961 * 1962 * Topology context contains a list of supported HW formats (configs) and 1963 * a default format ID for the physical link. This function will use this 1964 * default ID to choose the HW format to set the link's DAI format for init. 1965 */ 1966 static void set_link_hw_format(struct snd_soc_dai_link *link, 1967 struct snd_soc_tplg_link_config *cfg) 1968 { 1969 struct snd_soc_tplg_hw_config *hw_config; 1970 unsigned char bclk_master, fsync_master; 1971 unsigned char invert_bclk, invert_fsync; 1972 int i; 1973 1974 for (i = 0; i < cfg->num_hw_configs; i++) { 1975 hw_config = &cfg->hw_config[i]; 1976 if (hw_config->id != cfg->default_hw_config_id) 1977 continue; 1978 1979 link->dai_fmt = hw_config->fmt & SND_SOC_DAIFMT_FORMAT_MASK; 1980 1981 /* clock signal polarity */ 1982 invert_bclk = hw_config->invert_bclk; 1983 invert_fsync = hw_config->invert_fsync; 1984 if (!invert_bclk && !invert_fsync) 1985 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 1986 else if (!invert_bclk && invert_fsync) 1987 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 1988 else if (invert_bclk && !invert_fsync) 1989 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 1990 else 1991 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 1992 1993 /* clock masters */ 1994 bclk_master = hw_config->bclk_master; 1995 fsync_master = hw_config->fsync_master; 1996 if (!bclk_master && !fsync_master) 1997 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; 1998 else if (bclk_master && !fsync_master) 1999 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; 2000 else if (!bclk_master && fsync_master) 2001 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; 2002 else 2003 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; 2004 } 2005 } 2006 2007 /** 2008 * link_new_ver - Create a new physical link config from the old 2009 * version of source. 2010 * @tplg: topology context 2011 * @src: old version of phyical link config as a source 2012 * @link: latest version of physical link config created from the source 2013 * 2014 * Support from vesion 4. User need free the returned link config manually. 2015 */ 2016 static int link_new_ver(struct soc_tplg *tplg, 2017 struct snd_soc_tplg_link_config *src, 2018 struct snd_soc_tplg_link_config **link) 2019 { 2020 struct snd_soc_tplg_link_config *dest; 2021 struct snd_soc_tplg_link_config_v4 *src_v4; 2022 int i; 2023 2024 *link = NULL; 2025 2026 if (src->size != sizeof(struct snd_soc_tplg_link_config_v4)) { 2027 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2028 return -EINVAL; 2029 } 2030 2031 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2032 2033 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2034 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2035 if (!dest) 2036 return -ENOMEM; 2037 2038 dest->size = sizeof(*dest); 2039 dest->id = src_v4->id; 2040 dest->num_streams = src_v4->num_streams; 2041 for (i = 0; i < dest->num_streams; i++) 2042 memcpy(&dest->stream[i], &src_v4->stream[i], 2043 sizeof(struct snd_soc_tplg_stream)); 2044 2045 *link = dest; 2046 return 0; 2047 } 2048 2049 /* Find and configure an existing physical DAI link */ 2050 static int soc_tplg_link_config(struct soc_tplg *tplg, 2051 struct snd_soc_tplg_link_config *cfg) 2052 { 2053 struct snd_soc_dai_link *link; 2054 const char *name, *stream_name; 2055 size_t len; 2056 int ret; 2057 2058 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2059 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2060 return -EINVAL; 2061 else if (len) 2062 name = cfg->name; 2063 else 2064 name = NULL; 2065 2066 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2067 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2068 return -EINVAL; 2069 else if (len) 2070 stream_name = cfg->stream_name; 2071 else 2072 stream_name = NULL; 2073 2074 link = snd_soc_find_dai_link(tplg->comp->card, cfg->id, 2075 name, stream_name); 2076 if (!link) { 2077 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2078 name, cfg->id); 2079 return -EINVAL; 2080 } 2081 2082 /* hw format */ 2083 if (cfg->num_hw_configs) 2084 set_link_hw_format(link, cfg); 2085 2086 /* flags */ 2087 if (cfg->flag_mask) 2088 set_link_flags(link, cfg->flag_mask, cfg->flags); 2089 2090 /* pass control to component driver for optional further init */ 2091 ret = soc_tplg_dai_link_load(tplg, link); 2092 if (ret < 0) { 2093 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2094 return ret; 2095 } 2096 2097 return 0; 2098 } 2099 2100 2101 /* Load physical link config elements from the topology context */ 2102 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2103 struct snd_soc_tplg_hdr *hdr) 2104 { 2105 struct snd_soc_tplg_link_config *link, *_link; 2106 int count = hdr->count; 2107 int i, ret; 2108 bool abi_match; 2109 2110 if (tplg->pass != SOC_TPLG_PASS_LINK) { 2111 tplg->pos += hdr->size + hdr->payload_size; 2112 return 0; 2113 }; 2114 2115 /* check the element size and count */ 2116 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2117 if (link->size > sizeof(struct snd_soc_tplg_link_config) 2118 || link->size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2119 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2120 link->size); 2121 return -EINVAL; 2122 } 2123 2124 if (soc_tplg_check_elem_count(tplg, 2125 link->size, count, 2126 hdr->payload_size, "physical link config")) { 2127 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2128 count); 2129 return -EINVAL; 2130 } 2131 2132 /* config physical DAI links */ 2133 for (i = 0; i < count; i++) { 2134 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2135 if (link->size == sizeof(*link)) { 2136 abi_match = true; 2137 _link = link; 2138 } else { 2139 abi_match = false; 2140 ret = link_new_ver(tplg, link, &_link); 2141 if (ret < 0) 2142 return ret; 2143 } 2144 2145 ret = soc_tplg_link_config(tplg, _link); 2146 if (ret < 0) 2147 return ret; 2148 2149 /* offset by version-specific struct size and 2150 * real priv data size 2151 */ 2152 tplg->pos += link->size + _link->priv.size; 2153 2154 if (!abi_match) 2155 kfree(_link); /* free the duplicated one */ 2156 } 2157 2158 return 0; 2159 } 2160 2161 /** 2162 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2163 * @tplg: topology context 2164 * @d: physical DAI configs. 2165 * 2166 * The physical dai should already be registered by the platform driver. 2167 * The platform driver should specify the DAI name and ID for matching. 2168 */ 2169 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2170 struct snd_soc_tplg_dai *d) 2171 { 2172 struct snd_soc_dai_link_component dai_component = {0}; 2173 struct snd_soc_dai *dai; 2174 struct snd_soc_dai_driver *dai_drv; 2175 struct snd_soc_pcm_stream *stream; 2176 struct snd_soc_tplg_stream_caps *caps; 2177 int ret; 2178 2179 dai_component.dai_name = d->dai_name; 2180 dai = snd_soc_find_dai(&dai_component); 2181 if (!dai) { 2182 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2183 d->dai_name); 2184 return -EINVAL; 2185 } 2186 2187 if (d->dai_id != dai->id) { 2188 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2189 d->dai_name); 2190 return -EINVAL; 2191 } 2192 2193 dai_drv = dai->driver; 2194 if (!dai_drv) 2195 return -EINVAL; 2196 2197 if (d->playback) { 2198 stream = &dai_drv->playback; 2199 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2200 set_stream_info(stream, caps); 2201 } 2202 2203 if (d->capture) { 2204 stream = &dai_drv->capture; 2205 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2206 set_stream_info(stream, caps); 2207 } 2208 2209 if (d->flag_mask) 2210 set_dai_flags(dai_drv, d->flag_mask, d->flags); 2211 2212 /* pass control to component driver for optional further init */ 2213 ret = soc_tplg_dai_load(tplg, dai_drv); 2214 if (ret < 0) { 2215 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 2216 return ret; 2217 } 2218 2219 return 0; 2220 } 2221 2222 /* load physical DAI elements */ 2223 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2224 struct snd_soc_tplg_hdr *hdr) 2225 { 2226 struct snd_soc_tplg_dai *dai; 2227 int count = hdr->count; 2228 int i; 2229 2230 if (tplg->pass != SOC_TPLG_PASS_BE_DAI) 2231 return 0; 2232 2233 /* config the existing BE DAIs */ 2234 for (i = 0; i < count; i++) { 2235 dai = (struct snd_soc_tplg_dai *)tplg->pos; 2236 if (dai->size != sizeof(*dai)) { 2237 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2238 return -EINVAL; 2239 } 2240 2241 soc_tplg_dai_config(tplg, dai); 2242 tplg->pos += (sizeof(*dai) + dai->priv.size); 2243 } 2244 2245 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2246 return 0; 2247 } 2248 2249 /** 2250 * manifest_new_ver - Create a new version of manifest from the old version 2251 * of source. 2252 * @tplg: topology context 2253 * @src: old version of manifest as a source 2254 * @manifest: latest version of manifest created from the source 2255 * 2256 * Support from vesion 4. Users need free the returned manifest manually. 2257 */ 2258 static int manifest_new_ver(struct soc_tplg *tplg, 2259 struct snd_soc_tplg_manifest *src, 2260 struct snd_soc_tplg_manifest **manifest) 2261 { 2262 struct snd_soc_tplg_manifest *dest; 2263 struct snd_soc_tplg_manifest_v4 *src_v4; 2264 2265 *manifest = NULL; 2266 2267 if (src->size != sizeof(*src_v4)) { 2268 dev_err(tplg->dev, "ASoC: invalid manifest size\n"); 2269 return -EINVAL; 2270 } 2271 2272 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2273 2274 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2275 dest = kzalloc(sizeof(*dest) + src_v4->priv.size, GFP_KERNEL); 2276 if (!dest) 2277 return -ENOMEM; 2278 2279 dest->size = sizeof(*dest); /* size of latest abi version */ 2280 dest->control_elems = src_v4->control_elems; 2281 dest->widget_elems = src_v4->widget_elems; 2282 dest->graph_elems = src_v4->graph_elems; 2283 dest->pcm_elems = src_v4->pcm_elems; 2284 dest->dai_link_elems = src_v4->dai_link_elems; 2285 dest->priv.size = src_v4->priv.size; 2286 if (dest->priv.size) 2287 memcpy(dest->priv.data, src_v4->priv.data, 2288 src_v4->priv.size); 2289 2290 *manifest = dest; 2291 return 0; 2292 } 2293 2294 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2295 struct snd_soc_tplg_hdr *hdr) 2296 { 2297 struct snd_soc_tplg_manifest *manifest, *_manifest; 2298 bool abi_match; 2299 int err; 2300 2301 if (tplg->pass != SOC_TPLG_PASS_MANIFEST) 2302 return 0; 2303 2304 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2305 2306 /* check ABI version by size, create a new manifest if abi not match */ 2307 if (manifest->size == sizeof(*manifest)) { 2308 abi_match = true; 2309 _manifest = manifest; 2310 } else { 2311 abi_match = false; 2312 err = manifest_new_ver(tplg, manifest, &_manifest); 2313 if (err < 0) 2314 return err; 2315 } 2316 2317 /* pass control to component driver for optional further init */ 2318 if (tplg->comp && tplg->ops && tplg->ops->manifest) 2319 return tplg->ops->manifest(tplg->comp, _manifest); 2320 2321 if (!abi_match) /* free the duplicated one */ 2322 kfree(_manifest); 2323 2324 return 0; 2325 } 2326 2327 /* validate header magic, size and type */ 2328 static int soc_valid_header(struct soc_tplg *tplg, 2329 struct snd_soc_tplg_hdr *hdr) 2330 { 2331 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2332 return 0; 2333 2334 if (hdr->size != sizeof(*hdr)) { 2335 dev_err(tplg->dev, 2336 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2337 hdr->type, soc_tplg_get_hdr_offset(tplg), 2338 tplg->fw->size); 2339 return -EINVAL; 2340 } 2341 2342 /* big endian firmware objects not supported atm */ 2343 if (hdr->magic == cpu_to_be32(SND_SOC_TPLG_MAGIC)) { 2344 dev_err(tplg->dev, 2345 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2346 tplg->pass, hdr->magic, 2347 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2348 return -EINVAL; 2349 } 2350 2351 if (hdr->magic != SND_SOC_TPLG_MAGIC) { 2352 dev_err(tplg->dev, 2353 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2354 tplg->pass, hdr->magic, 2355 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2356 return -EINVAL; 2357 } 2358 2359 /* Support ABI from version 4 */ 2360 if (hdr->abi > SND_SOC_TPLG_ABI_VERSION 2361 || hdr->abi < SND_SOC_TPLG_ABI_VERSION_MIN) { 2362 dev_err(tplg->dev, 2363 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2364 tplg->pass, hdr->abi, 2365 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2366 tplg->fw->size); 2367 return -EINVAL; 2368 } 2369 2370 if (hdr->payload_size == 0) { 2371 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2372 soc_tplg_get_hdr_offset(tplg)); 2373 return -EINVAL; 2374 } 2375 2376 if (tplg->pass == hdr->type) 2377 dev_dbg(tplg->dev, 2378 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2379 hdr->payload_size, hdr->type, hdr->version, 2380 hdr->vendor_type, tplg->pass); 2381 2382 return 1; 2383 } 2384 2385 /* check header type and call appropriate handler */ 2386 static int soc_tplg_load_header(struct soc_tplg *tplg, 2387 struct snd_soc_tplg_hdr *hdr) 2388 { 2389 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2390 2391 /* check for matching ID */ 2392 if (hdr->index != tplg->req_index && 2393 tplg->req_index != SND_SOC_TPLG_INDEX_ALL) 2394 return 0; 2395 2396 tplg->index = hdr->index; 2397 2398 switch (hdr->type) { 2399 case SND_SOC_TPLG_TYPE_MIXER: 2400 case SND_SOC_TPLG_TYPE_ENUM: 2401 case SND_SOC_TPLG_TYPE_BYTES: 2402 return soc_tplg_kcontrol_elems_load(tplg, hdr); 2403 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2404 return soc_tplg_dapm_graph_elems_load(tplg, hdr); 2405 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2406 return soc_tplg_dapm_widget_elems_load(tplg, hdr); 2407 case SND_SOC_TPLG_TYPE_PCM: 2408 return soc_tplg_pcm_elems_load(tplg, hdr); 2409 case SND_SOC_TPLG_TYPE_DAI: 2410 return soc_tplg_dai_elems_load(tplg, hdr); 2411 case SND_SOC_TPLG_TYPE_DAI_LINK: 2412 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2413 /* physical link configurations */ 2414 return soc_tplg_link_elems_load(tplg, hdr); 2415 case SND_SOC_TPLG_TYPE_MANIFEST: 2416 return soc_tplg_manifest_load(tplg, hdr); 2417 default: 2418 /* bespoke vendor data object */ 2419 return soc_tplg_vendor_load(tplg, hdr); 2420 } 2421 2422 return 0; 2423 } 2424 2425 /* process the topology file headers */ 2426 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2427 { 2428 struct snd_soc_tplg_hdr *hdr; 2429 int ret; 2430 2431 tplg->pass = SOC_TPLG_PASS_START; 2432 2433 /* process the header types from start to end */ 2434 while (tplg->pass <= SOC_TPLG_PASS_END) { 2435 2436 tplg->hdr_pos = tplg->fw->data; 2437 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2438 2439 while (!soc_tplg_is_eof(tplg)) { 2440 2441 /* make sure header is valid before loading */ 2442 ret = soc_valid_header(tplg, hdr); 2443 if (ret < 0) 2444 return ret; 2445 else if (ret == 0) 2446 break; 2447 2448 /* load the header object */ 2449 ret = soc_tplg_load_header(tplg, hdr); 2450 if (ret < 0) 2451 return ret; 2452 2453 /* goto next header */ 2454 tplg->hdr_pos += hdr->payload_size + 2455 sizeof(struct snd_soc_tplg_hdr); 2456 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2457 } 2458 2459 /* next data type pass */ 2460 tplg->pass++; 2461 } 2462 2463 /* signal DAPM we are complete */ 2464 ret = soc_tplg_dapm_complete(tplg); 2465 if (ret < 0) 2466 dev_err(tplg->dev, 2467 "ASoC: failed to initialise DAPM from Firmware\n"); 2468 2469 return ret; 2470 } 2471 2472 static int soc_tplg_load(struct soc_tplg *tplg) 2473 { 2474 int ret; 2475 2476 ret = soc_tplg_process_headers(tplg); 2477 if (ret == 0) 2478 soc_tplg_complete(tplg); 2479 2480 return ret; 2481 } 2482 2483 /* load audio component topology from "firmware" file */ 2484 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2485 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) 2486 { 2487 struct soc_tplg tplg; 2488 2489 /* setup parsing context */ 2490 memset(&tplg, 0, sizeof(tplg)); 2491 tplg.fw = fw; 2492 tplg.dev = comp->dev; 2493 tplg.comp = comp; 2494 tplg.ops = ops; 2495 tplg.req_index = id; 2496 tplg.io_ops = ops->io_ops; 2497 tplg.io_ops_count = ops->io_ops_count; 2498 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2499 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2500 2501 return soc_tplg_load(&tplg); 2502 } 2503 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2504 2505 /* remove this dynamic widget */ 2506 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) 2507 { 2508 /* make sure we are a widget */ 2509 if (w->dobj.type != SND_SOC_DOBJ_WIDGET) 2510 return; 2511 2512 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); 2513 } 2514 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); 2515 2516 /* remove all dynamic widgets from this DAPM context */ 2517 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, 2518 u32 index) 2519 { 2520 struct snd_soc_dapm_widget *w, *next_w; 2521 2522 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { 2523 2524 /* make sure we are a widget with correct context */ 2525 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) 2526 continue; 2527 2528 /* match ID */ 2529 if (w->dobj.index != index && 2530 w->dobj.index != SND_SOC_TPLG_INDEX_ALL) 2531 continue; 2532 /* check and free and dynamic widget kcontrols */ 2533 snd_soc_tplg_widget_remove(w); 2534 snd_soc_dapm_free_widget(w); 2535 } 2536 snd_soc_dapm_reset_cache(dapm); 2537 } 2538 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); 2539 2540 /* remove dynamic controls from the component driver */ 2541 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) 2542 { 2543 struct snd_soc_dobj *dobj, *next_dobj; 2544 int pass = SOC_TPLG_PASS_END; 2545 2546 /* process the header types from end to start */ 2547 while (pass >= SOC_TPLG_PASS_START) { 2548 2549 /* remove mixer controls */ 2550 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2551 list) { 2552 2553 /* match index */ 2554 if (dobj->index != index && 2555 dobj->index != SND_SOC_TPLG_INDEX_ALL) 2556 continue; 2557 2558 switch (dobj->type) { 2559 case SND_SOC_DOBJ_MIXER: 2560 remove_mixer(comp, dobj, pass); 2561 break; 2562 case SND_SOC_DOBJ_ENUM: 2563 remove_enum(comp, dobj, pass); 2564 break; 2565 case SND_SOC_DOBJ_BYTES: 2566 remove_bytes(comp, dobj, pass); 2567 break; 2568 case SND_SOC_DOBJ_WIDGET: 2569 remove_widget(comp, dobj, pass); 2570 break; 2571 case SND_SOC_DOBJ_PCM: 2572 remove_dai(comp, dobj, pass); 2573 break; 2574 case SND_SOC_DOBJ_DAI_LINK: 2575 remove_link(comp, dobj, pass); 2576 break; 2577 default: 2578 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2579 dobj->type); 2580 break; 2581 } 2582 } 2583 pass--; 2584 } 2585 2586 /* let caller know if FW can be freed when no objects are left */ 2587 return !list_empty(&comp->dobj_list); 2588 } 2589 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2590