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 goto err; 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 if (!se) 1382 continue; 1383 1384 kfree(se->dobj.control.dvalues); 1385 for (j = 0; j < ec->items; j++) 1386 kfree(se->dobj.control.dtexts[j]); 1387 1388 kfree(se); 1389 } 1390 err: 1391 kfree(kc); 1392 1393 return NULL; 1394 } 1395 1396 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create( 1397 struct soc_tplg *tplg, int count) 1398 { 1399 struct snd_soc_tplg_bytes_control *be; 1400 struct soc_bytes_ext *sbe; 1401 struct snd_kcontrol_new *kc; 1402 int i, err; 1403 1404 kc = kcalloc(count, sizeof(*kc), GFP_KERNEL); 1405 if (!kc) 1406 return NULL; 1407 1408 for (i = 0; i < count; i++) { 1409 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 1410 1411 /* validate kcontrol */ 1412 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1413 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1414 goto err; 1415 1416 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL); 1417 if (sbe == NULL) 1418 goto err; 1419 1420 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + 1421 be->priv.size); 1422 1423 dev_dbg(tplg->dev, 1424 "ASoC: adding bytes kcontrol %s with access 0x%x\n", 1425 be->hdr.name, be->hdr.access); 1426 1427 kc[i].name = be->hdr.name; 1428 kc[i].private_value = (long)sbe; 1429 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; 1430 kc[i].access = be->hdr.access; 1431 1432 sbe->max = be->max; 1433 INIT_LIST_HEAD(&sbe->dobj.list); 1434 1435 /* map standard io handlers and check for external handlers */ 1436 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg); 1437 if (err) { 1438 soc_control_err(tplg, &be->hdr, be->hdr.name); 1439 kfree(sbe); 1440 continue; 1441 } 1442 1443 /* pass control to driver for optional further init */ 1444 err = soc_tplg_init_kcontrol(tplg, &kc[i], 1445 (struct snd_soc_tplg_ctl_hdr *)be); 1446 if (err < 0) { 1447 dev_err(tplg->dev, "ASoC: failed to init %s\n", 1448 be->hdr.name); 1449 kfree(sbe); 1450 continue; 1451 } 1452 } 1453 1454 return kc; 1455 1456 err: 1457 for (--i; i >= 0; i--) 1458 kfree((void *)kc[i].private_value); 1459 1460 kfree(kc); 1461 return NULL; 1462 } 1463 1464 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1465 struct snd_soc_tplg_dapm_widget *w) 1466 { 1467 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1468 struct snd_soc_dapm_widget template, *widget; 1469 struct snd_soc_tplg_ctl_hdr *control_hdr; 1470 struct snd_soc_card *card = tplg->comp->card; 1471 unsigned int kcontrol_type; 1472 int ret = 0; 1473 1474 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1475 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1476 return -EINVAL; 1477 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1478 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1479 return -EINVAL; 1480 1481 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1482 w->name, w->id); 1483 1484 memset(&template, 0, sizeof(template)); 1485 1486 /* map user to kernel widget ID */ 1487 template.id = get_widget_id(w->id); 1488 if (template.id < 0) 1489 return template.id; 1490 1491 /* strings are allocated here, but used and freed by the widget */ 1492 template.name = kstrdup(w->name, GFP_KERNEL); 1493 if (!template.name) 1494 return -ENOMEM; 1495 template.sname = kstrdup(w->sname, GFP_KERNEL); 1496 if (!template.sname) { 1497 ret = -ENOMEM; 1498 goto err; 1499 } 1500 template.reg = w->reg; 1501 template.shift = w->shift; 1502 template.mask = w->mask; 1503 template.subseq = w->subseq; 1504 template.on_val = w->invert ? 0 : 1; 1505 template.off_val = w->invert ? 1 : 0; 1506 template.ignore_suspend = w->ignore_suspend; 1507 template.event_flags = w->event_flags; 1508 template.dobj.index = tplg->index; 1509 1510 tplg->pos += 1511 (sizeof(struct snd_soc_tplg_dapm_widget) + w->priv.size); 1512 if (w->num_kcontrols == 0) { 1513 kcontrol_type = 0; 1514 template.num_kcontrols = 0; 1515 goto widget; 1516 } 1517 1518 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1519 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n", 1520 w->name, w->num_kcontrols, control_hdr->type); 1521 1522 switch (control_hdr->ops.info) { 1523 case SND_SOC_TPLG_CTL_VOLSW: 1524 case SND_SOC_TPLG_CTL_STROBE: 1525 case SND_SOC_TPLG_CTL_VOLSW_SX: 1526 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1527 case SND_SOC_TPLG_CTL_RANGE: 1528 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1529 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */ 1530 template.num_kcontrols = w->num_kcontrols; 1531 template.kcontrol_news = 1532 soc_tplg_dapm_widget_dmixer_create(tplg, 1533 template.num_kcontrols); 1534 if (!template.kcontrol_news) { 1535 ret = -ENOMEM; 1536 goto hdr_err; 1537 } 1538 break; 1539 case SND_SOC_TPLG_CTL_ENUM: 1540 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1541 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1542 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1543 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1544 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */ 1545 template.num_kcontrols = w->num_kcontrols; 1546 template.kcontrol_news = 1547 soc_tplg_dapm_widget_denum_create(tplg, 1548 template.num_kcontrols); 1549 if (!template.kcontrol_news) { 1550 ret = -ENOMEM; 1551 goto hdr_err; 1552 } 1553 break; 1554 case SND_SOC_TPLG_CTL_BYTES: 1555 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */ 1556 template.num_kcontrols = w->num_kcontrols; 1557 template.kcontrol_news = 1558 soc_tplg_dapm_widget_dbytes_create(tplg, 1559 template.num_kcontrols); 1560 if (!template.kcontrol_news) { 1561 ret = -ENOMEM; 1562 goto hdr_err; 1563 } 1564 break; 1565 default: 1566 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1567 control_hdr->ops.get, control_hdr->ops.put, 1568 control_hdr->ops.info); 1569 ret = -EINVAL; 1570 goto hdr_err; 1571 } 1572 1573 widget: 1574 ret = soc_tplg_widget_load(tplg, &template, w); 1575 if (ret < 0) 1576 goto hdr_err; 1577 1578 /* card dapm mutex is held by the core if we are loading topology 1579 * data during sound card init. */ 1580 if (card->instantiated) 1581 widget = snd_soc_dapm_new_control(dapm, &template); 1582 else 1583 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1584 if (IS_ERR(widget)) { 1585 ret = PTR_ERR(widget); 1586 /* Do not nag about probe deferrals */ 1587 if (ret != -EPROBE_DEFER) 1588 dev_err(tplg->dev, 1589 "ASoC: failed to create widget %s controls (%d)\n", 1590 w->name, ret); 1591 goto hdr_err; 1592 } 1593 if (widget == NULL) { 1594 dev_err(tplg->dev, "ASoC: failed to create widget %s controls\n", 1595 w->name); 1596 ret = -ENOMEM; 1597 goto hdr_err; 1598 } 1599 1600 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1601 widget->dobj.widget.kcontrol_type = kcontrol_type; 1602 widget->dobj.ops = tplg->ops; 1603 widget->dobj.index = tplg->index; 1604 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1605 1606 ret = soc_tplg_widget_ready(tplg, widget, w); 1607 if (ret < 0) 1608 goto ready_err; 1609 1610 return 0; 1611 1612 ready_err: 1613 snd_soc_tplg_widget_remove(widget); 1614 snd_soc_dapm_free_widget(widget); 1615 hdr_err: 1616 kfree(template.sname); 1617 err: 1618 kfree(template.name); 1619 return ret; 1620 } 1621 1622 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1623 struct snd_soc_tplg_hdr *hdr) 1624 { 1625 struct snd_soc_tplg_dapm_widget *widget; 1626 int ret, count = hdr->count, i; 1627 1628 if (tplg->pass != SOC_TPLG_PASS_WIDGET) 1629 return 0; 1630 1631 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1632 1633 for (i = 0; i < count; i++) { 1634 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1635 if (widget->size != sizeof(*widget)) { 1636 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1637 return -EINVAL; 1638 } 1639 1640 ret = soc_tplg_dapm_widget_create(tplg, widget); 1641 if (ret < 0) { 1642 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1643 widget->name); 1644 return ret; 1645 } 1646 } 1647 1648 return 0; 1649 } 1650 1651 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1652 { 1653 struct snd_soc_card *card = tplg->comp->card; 1654 int ret; 1655 1656 /* Card might not have been registered at this point. 1657 * If so, just return success. 1658 */ 1659 if (!card || !card->instantiated) { 1660 dev_warn(tplg->dev, "ASoC: Parent card not yet available," 1661 " widget card binding deferred\n"); 1662 return 0; 1663 } 1664 1665 ret = snd_soc_dapm_new_widgets(card); 1666 if (ret < 0) 1667 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", 1668 ret); 1669 1670 return 0; 1671 } 1672 1673 static void set_stream_info(struct snd_soc_pcm_stream *stream, 1674 struct snd_soc_tplg_stream_caps *caps) 1675 { 1676 stream->stream_name = kstrdup(caps->name, GFP_KERNEL); 1677 stream->channels_min = caps->channels_min; 1678 stream->channels_max = caps->channels_max; 1679 stream->rates = caps->rates; 1680 stream->rate_min = caps->rate_min; 1681 stream->rate_max = caps->rate_max; 1682 stream->formats = caps->formats; 1683 stream->sig_bits = caps->sig_bits; 1684 } 1685 1686 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1687 unsigned int flag_mask, unsigned int flags) 1688 { 1689 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1690 dai_drv->symmetric_rates = 1691 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1692 1693 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1694 dai_drv->symmetric_channels = 1695 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ? 1696 1 : 0; 1697 1698 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1699 dai_drv->symmetric_samplebits = 1700 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1701 1 : 0; 1702 } 1703 1704 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1705 struct snd_soc_tplg_pcm *pcm) 1706 { 1707 struct snd_soc_dai_driver *dai_drv; 1708 struct snd_soc_pcm_stream *stream; 1709 struct snd_soc_tplg_stream_caps *caps; 1710 int ret; 1711 1712 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1713 if (dai_drv == NULL) 1714 return -ENOMEM; 1715 1716 if (strlen(pcm->dai_name)) 1717 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL); 1718 dai_drv->id = pcm->dai_id; 1719 1720 if (pcm->playback) { 1721 stream = &dai_drv->playback; 1722 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1723 set_stream_info(stream, caps); 1724 } 1725 1726 if (pcm->capture) { 1727 stream = &dai_drv->capture; 1728 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1729 set_stream_info(stream, caps); 1730 } 1731 1732 /* pass control to component driver for optional further init */ 1733 ret = soc_tplg_dai_load(tplg, dai_drv); 1734 if (ret < 0) { 1735 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 1736 kfree(dai_drv); 1737 return ret; 1738 } 1739 1740 dai_drv->dobj.index = tplg->index; 1741 dai_drv->dobj.ops = tplg->ops; 1742 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1743 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1744 1745 /* register the DAI to the component */ 1746 return snd_soc_register_dai(tplg->comp, dai_drv); 1747 } 1748 1749 static void set_link_flags(struct snd_soc_dai_link *link, 1750 unsigned int flag_mask, unsigned int flags) 1751 { 1752 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1753 link->symmetric_rates = 1754 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0; 1755 1756 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1757 link->symmetric_channels = 1758 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ? 1759 1 : 0; 1760 1761 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1762 link->symmetric_samplebits = 1763 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ? 1764 1 : 0; 1765 1766 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1767 link->ignore_suspend = 1768 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ? 1769 1 : 0; 1770 } 1771 1772 /* create the FE DAI link */ 1773 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1774 struct snd_soc_tplg_pcm *pcm) 1775 { 1776 struct snd_soc_dai_link *link; 1777 int ret; 1778 1779 link = kzalloc(sizeof(struct snd_soc_dai_link), GFP_KERNEL); 1780 if (link == NULL) 1781 return -ENOMEM; 1782 1783 if (strlen(pcm->pcm_name)) { 1784 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1785 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); 1786 } 1787 link->id = pcm->pcm_id; 1788 1789 if (strlen(pcm->dai_name)) 1790 link->cpu_dai_name = kstrdup(pcm->dai_name, GFP_KERNEL); 1791 1792 link->codec_name = "snd-soc-dummy"; 1793 link->codec_dai_name = "snd-soc-dummy-dai"; 1794 1795 /* enable DPCM */ 1796 link->dynamic = 1; 1797 link->dpcm_playback = pcm->playback; 1798 link->dpcm_capture = pcm->capture; 1799 if (pcm->flag_mask) 1800 set_link_flags(link, pcm->flag_mask, pcm->flags); 1801 1802 /* pass control to component driver for optional further init */ 1803 ret = soc_tplg_dai_link_load(tplg, link); 1804 if (ret < 0) { 1805 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n"); 1806 kfree(link); 1807 return ret; 1808 } 1809 1810 link->dobj.index = tplg->index; 1811 link->dobj.ops = tplg->ops; 1812 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1813 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1814 1815 snd_soc_add_dai_link(tplg->comp->card, link); 1816 return 0; 1817 } 1818 1819 /* create a FE DAI and DAI link from the PCM object */ 1820 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1821 struct snd_soc_tplg_pcm *pcm) 1822 { 1823 int ret; 1824 1825 ret = soc_tplg_dai_create(tplg, pcm); 1826 if (ret < 0) 1827 return ret; 1828 1829 return soc_tplg_fe_link_create(tplg, pcm); 1830 } 1831 1832 /* copy stream caps from the old version 4 of source */ 1833 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest, 1834 struct snd_soc_tplg_stream_caps_v4 *src) 1835 { 1836 dest->size = sizeof(*dest); 1837 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1838 dest->formats = src->formats; 1839 dest->rates = src->rates; 1840 dest->rate_min = src->rate_min; 1841 dest->rate_max = src->rate_max; 1842 dest->channels_min = src->channels_min; 1843 dest->channels_max = src->channels_max; 1844 dest->periods_min = src->periods_min; 1845 dest->periods_max = src->periods_max; 1846 dest->period_size_min = src->period_size_min; 1847 dest->period_size_max = src->period_size_max; 1848 dest->buffer_size_min = src->buffer_size_min; 1849 dest->buffer_size_max = src->buffer_size_max; 1850 } 1851 1852 /** 1853 * pcm_new_ver - Create the new version of PCM from the old version. 1854 * @tplg: topology context 1855 * @src: older version of pcm as a source 1856 * @pcm: latest version of pcm created from the source 1857 * 1858 * Support from vesion 4. User should free the returned pcm manually. 1859 */ 1860 static int pcm_new_ver(struct soc_tplg *tplg, 1861 struct snd_soc_tplg_pcm *src, 1862 struct snd_soc_tplg_pcm **pcm) 1863 { 1864 struct snd_soc_tplg_pcm *dest; 1865 struct snd_soc_tplg_pcm_v4 *src_v4; 1866 int i; 1867 1868 *pcm = NULL; 1869 1870 if (src->size != sizeof(*src_v4)) { 1871 dev_err(tplg->dev, "ASoC: invalid PCM size\n"); 1872 return -EINVAL; 1873 } 1874 1875 dev_warn(tplg->dev, "ASoC: old version of PCM\n"); 1876 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src; 1877 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 1878 if (!dest) 1879 return -ENOMEM; 1880 1881 dest->size = sizeof(*dest); /* size of latest abi version */ 1882 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1883 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1884 dest->pcm_id = src_v4->pcm_id; 1885 dest->dai_id = src_v4->dai_id; 1886 dest->playback = src_v4->playback; 1887 dest->capture = src_v4->capture; 1888 dest->compress = src_v4->compress; 1889 dest->num_streams = src_v4->num_streams; 1890 for (i = 0; i < dest->num_streams; i++) 1891 memcpy(&dest->stream[i], &src_v4->stream[i], 1892 sizeof(struct snd_soc_tplg_stream)); 1893 1894 for (i = 0; i < 2; i++) 1895 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]); 1896 1897 *pcm = dest; 1898 return 0; 1899 } 1900 1901 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1902 struct snd_soc_tplg_hdr *hdr) 1903 { 1904 struct snd_soc_tplg_pcm *pcm, *_pcm; 1905 int count = hdr->count; 1906 int i; 1907 bool abi_match; 1908 1909 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI) 1910 return 0; 1911 1912 /* check the element size and count */ 1913 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1914 if (pcm->size > sizeof(struct snd_soc_tplg_pcm) 1915 || pcm->size < sizeof(struct snd_soc_tplg_pcm_v4)) { 1916 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1917 pcm->size); 1918 return -EINVAL; 1919 } 1920 1921 if (soc_tplg_check_elem_count(tplg, 1922 pcm->size, count, 1923 hdr->payload_size, "PCM DAI")) { 1924 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n", 1925 count); 1926 return -EINVAL; 1927 } 1928 1929 for (i = 0; i < count; i++) { 1930 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1931 1932 /* check ABI version by size, create a new version of pcm 1933 * if abi not match. 1934 */ 1935 if (pcm->size == sizeof(*pcm)) { 1936 abi_match = true; 1937 _pcm = pcm; 1938 } else { 1939 abi_match = false; 1940 pcm_new_ver(tplg, pcm, &_pcm); 1941 } 1942 1943 /* create the FE DAIs and DAI links */ 1944 soc_tplg_pcm_create(tplg, _pcm); 1945 1946 /* offset by version-specific struct size and 1947 * real priv data size 1948 */ 1949 tplg->pos += pcm->size + _pcm->priv.size; 1950 1951 if (!abi_match) 1952 kfree(_pcm); /* free the duplicated one */ 1953 } 1954 1955 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1956 1957 return 0; 1958 } 1959 1960 /** 1961 * set_link_hw_format - Set the HW audio format of the physical DAI link. 1962 * @link: &snd_soc_dai_link which should be updated 1963 * @cfg: physical link configs. 1964 * 1965 * Topology context contains a list of supported HW formats (configs) and 1966 * a default format ID for the physical link. This function will use this 1967 * default ID to choose the HW format to set the link's DAI format for init. 1968 */ 1969 static void set_link_hw_format(struct snd_soc_dai_link *link, 1970 struct snd_soc_tplg_link_config *cfg) 1971 { 1972 struct snd_soc_tplg_hw_config *hw_config; 1973 unsigned char bclk_master, fsync_master; 1974 unsigned char invert_bclk, invert_fsync; 1975 int i; 1976 1977 for (i = 0; i < cfg->num_hw_configs; i++) { 1978 hw_config = &cfg->hw_config[i]; 1979 if (hw_config->id != cfg->default_hw_config_id) 1980 continue; 1981 1982 link->dai_fmt = hw_config->fmt & SND_SOC_DAIFMT_FORMAT_MASK; 1983 1984 /* clock signal polarity */ 1985 invert_bclk = hw_config->invert_bclk; 1986 invert_fsync = hw_config->invert_fsync; 1987 if (!invert_bclk && !invert_fsync) 1988 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 1989 else if (!invert_bclk && invert_fsync) 1990 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 1991 else if (invert_bclk && !invert_fsync) 1992 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 1993 else 1994 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 1995 1996 /* clock masters */ 1997 bclk_master = hw_config->bclk_master; 1998 fsync_master = hw_config->fsync_master; 1999 if (!bclk_master && !fsync_master) 2000 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; 2001 else if (bclk_master && !fsync_master) 2002 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; 2003 else if (!bclk_master && fsync_master) 2004 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; 2005 else 2006 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; 2007 } 2008 } 2009 2010 /** 2011 * link_new_ver - Create a new physical link config from the old 2012 * version of source. 2013 * @tplg: topology context 2014 * @src: old version of phyical link config as a source 2015 * @link: latest version of physical link config created from the source 2016 * 2017 * Support from vesion 4. User need free the returned link config manually. 2018 */ 2019 static int link_new_ver(struct soc_tplg *tplg, 2020 struct snd_soc_tplg_link_config *src, 2021 struct snd_soc_tplg_link_config **link) 2022 { 2023 struct snd_soc_tplg_link_config *dest; 2024 struct snd_soc_tplg_link_config_v4 *src_v4; 2025 int i; 2026 2027 *link = NULL; 2028 2029 if (src->size != sizeof(struct snd_soc_tplg_link_config_v4)) { 2030 dev_err(tplg->dev, "ASoC: invalid physical link config size\n"); 2031 return -EINVAL; 2032 } 2033 2034 dev_warn(tplg->dev, "ASoC: old version of physical link config\n"); 2035 2036 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src; 2037 dest = kzalloc(sizeof(*dest), GFP_KERNEL); 2038 if (!dest) 2039 return -ENOMEM; 2040 2041 dest->size = sizeof(*dest); 2042 dest->id = src_v4->id; 2043 dest->num_streams = src_v4->num_streams; 2044 for (i = 0; i < dest->num_streams; i++) 2045 memcpy(&dest->stream[i], &src_v4->stream[i], 2046 sizeof(struct snd_soc_tplg_stream)); 2047 2048 *link = dest; 2049 return 0; 2050 } 2051 2052 /* Find and configure an existing physical DAI link */ 2053 static int soc_tplg_link_config(struct soc_tplg *tplg, 2054 struct snd_soc_tplg_link_config *cfg) 2055 { 2056 struct snd_soc_dai_link *link; 2057 const char *name, *stream_name; 2058 size_t len; 2059 int ret; 2060 2061 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2062 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2063 return -EINVAL; 2064 else if (len) 2065 name = cfg->name; 2066 else 2067 name = NULL; 2068 2069 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 2070 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 2071 return -EINVAL; 2072 else if (len) 2073 stream_name = cfg->stream_name; 2074 else 2075 stream_name = NULL; 2076 2077 link = snd_soc_find_dai_link(tplg->comp->card, cfg->id, 2078 name, stream_name); 2079 if (!link) { 2080 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 2081 name, cfg->id); 2082 return -EINVAL; 2083 } 2084 2085 /* hw format */ 2086 if (cfg->num_hw_configs) 2087 set_link_hw_format(link, cfg); 2088 2089 /* flags */ 2090 if (cfg->flag_mask) 2091 set_link_flags(link, cfg->flag_mask, cfg->flags); 2092 2093 /* pass control to component driver for optional further init */ 2094 ret = soc_tplg_dai_link_load(tplg, link); 2095 if (ret < 0) { 2096 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 2097 return ret; 2098 } 2099 2100 return 0; 2101 } 2102 2103 2104 /* Load physical link config elements from the topology context */ 2105 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 2106 struct snd_soc_tplg_hdr *hdr) 2107 { 2108 struct snd_soc_tplg_link_config *link, *_link; 2109 int count = hdr->count; 2110 int i, ret; 2111 bool abi_match; 2112 2113 if (tplg->pass != SOC_TPLG_PASS_LINK) { 2114 tplg->pos += hdr->size + hdr->payload_size; 2115 return 0; 2116 }; 2117 2118 /* check the element size and count */ 2119 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2120 if (link->size > sizeof(struct snd_soc_tplg_link_config) 2121 || link->size < sizeof(struct snd_soc_tplg_link_config_v4)) { 2122 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 2123 link->size); 2124 return -EINVAL; 2125 } 2126 2127 if (soc_tplg_check_elem_count(tplg, 2128 link->size, count, 2129 hdr->payload_size, "physical link config")) { 2130 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n", 2131 count); 2132 return -EINVAL; 2133 } 2134 2135 /* config physical DAI links */ 2136 for (i = 0; i < count; i++) { 2137 link = (struct snd_soc_tplg_link_config *)tplg->pos; 2138 if (link->size == sizeof(*link)) { 2139 abi_match = true; 2140 _link = link; 2141 } else { 2142 abi_match = false; 2143 ret = link_new_ver(tplg, link, &_link); 2144 if (ret < 0) 2145 return ret; 2146 } 2147 2148 ret = soc_tplg_link_config(tplg, _link); 2149 if (ret < 0) 2150 return ret; 2151 2152 /* offset by version-specific struct size and 2153 * real priv data size 2154 */ 2155 tplg->pos += link->size + _link->priv.size; 2156 2157 if (!abi_match) 2158 kfree(_link); /* free the duplicated one */ 2159 } 2160 2161 return 0; 2162 } 2163 2164 /** 2165 * soc_tplg_dai_config - Find and configure an existing physical DAI. 2166 * @tplg: topology context 2167 * @d: physical DAI configs. 2168 * 2169 * The physical dai should already be registered by the platform driver. 2170 * The platform driver should specify the DAI name and ID for matching. 2171 */ 2172 static int soc_tplg_dai_config(struct soc_tplg *tplg, 2173 struct snd_soc_tplg_dai *d) 2174 { 2175 struct snd_soc_dai_link_component dai_component = {0}; 2176 struct snd_soc_dai *dai; 2177 struct snd_soc_dai_driver *dai_drv; 2178 struct snd_soc_pcm_stream *stream; 2179 struct snd_soc_tplg_stream_caps *caps; 2180 int ret; 2181 2182 dai_component.dai_name = d->dai_name; 2183 dai = snd_soc_find_dai(&dai_component); 2184 if (!dai) { 2185 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 2186 d->dai_name); 2187 return -EINVAL; 2188 } 2189 2190 if (d->dai_id != dai->id) { 2191 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 2192 d->dai_name); 2193 return -EINVAL; 2194 } 2195 2196 dai_drv = dai->driver; 2197 if (!dai_drv) 2198 return -EINVAL; 2199 2200 if (d->playback) { 2201 stream = &dai_drv->playback; 2202 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 2203 set_stream_info(stream, caps); 2204 } 2205 2206 if (d->capture) { 2207 stream = &dai_drv->capture; 2208 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 2209 set_stream_info(stream, caps); 2210 } 2211 2212 if (d->flag_mask) 2213 set_dai_flags(dai_drv, d->flag_mask, d->flags); 2214 2215 /* pass control to component driver for optional further init */ 2216 ret = soc_tplg_dai_load(tplg, dai_drv); 2217 if (ret < 0) { 2218 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n"); 2219 return ret; 2220 } 2221 2222 return 0; 2223 } 2224 2225 /* load physical DAI elements */ 2226 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 2227 struct snd_soc_tplg_hdr *hdr) 2228 { 2229 struct snd_soc_tplg_dai *dai; 2230 int count = hdr->count; 2231 int i; 2232 2233 if (tplg->pass != SOC_TPLG_PASS_BE_DAI) 2234 return 0; 2235 2236 /* config the existing BE DAIs */ 2237 for (i = 0; i < count; i++) { 2238 dai = (struct snd_soc_tplg_dai *)tplg->pos; 2239 if (dai->size != sizeof(*dai)) { 2240 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 2241 return -EINVAL; 2242 } 2243 2244 soc_tplg_dai_config(tplg, dai); 2245 tplg->pos += (sizeof(*dai) + dai->priv.size); 2246 } 2247 2248 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 2249 return 0; 2250 } 2251 2252 /** 2253 * manifest_new_ver - Create a new version of manifest from the old version 2254 * of source. 2255 * @tplg: topology context 2256 * @src: old version of manifest as a source 2257 * @manifest: latest version of manifest created from the source 2258 * 2259 * Support from vesion 4. Users need free the returned manifest manually. 2260 */ 2261 static int manifest_new_ver(struct soc_tplg *tplg, 2262 struct snd_soc_tplg_manifest *src, 2263 struct snd_soc_tplg_manifest **manifest) 2264 { 2265 struct snd_soc_tplg_manifest *dest; 2266 struct snd_soc_tplg_manifest_v4 *src_v4; 2267 2268 *manifest = NULL; 2269 2270 if (src->size != sizeof(*src_v4)) { 2271 dev_err(tplg->dev, "ASoC: invalid manifest size\n"); 2272 return -EINVAL; 2273 } 2274 2275 dev_warn(tplg->dev, "ASoC: old version of manifest\n"); 2276 2277 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src; 2278 dest = kzalloc(sizeof(*dest) + src_v4->priv.size, GFP_KERNEL); 2279 if (!dest) 2280 return -ENOMEM; 2281 2282 dest->size = sizeof(*dest); /* size of latest abi version */ 2283 dest->control_elems = src_v4->control_elems; 2284 dest->widget_elems = src_v4->widget_elems; 2285 dest->graph_elems = src_v4->graph_elems; 2286 dest->pcm_elems = src_v4->pcm_elems; 2287 dest->dai_link_elems = src_v4->dai_link_elems; 2288 dest->priv.size = src_v4->priv.size; 2289 if (dest->priv.size) 2290 memcpy(dest->priv.data, src_v4->priv.data, 2291 src_v4->priv.size); 2292 2293 *manifest = dest; 2294 return 0; 2295 } 2296 2297 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 2298 struct snd_soc_tplg_hdr *hdr) 2299 { 2300 struct snd_soc_tplg_manifest *manifest, *_manifest; 2301 bool abi_match; 2302 int err; 2303 2304 if (tplg->pass != SOC_TPLG_PASS_MANIFEST) 2305 return 0; 2306 2307 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 2308 2309 /* check ABI version by size, create a new manifest if abi not match */ 2310 if (manifest->size == sizeof(*manifest)) { 2311 abi_match = true; 2312 _manifest = manifest; 2313 } else { 2314 abi_match = false; 2315 err = manifest_new_ver(tplg, manifest, &_manifest); 2316 if (err < 0) 2317 return err; 2318 } 2319 2320 /* pass control to component driver for optional further init */ 2321 if (tplg->comp && tplg->ops && tplg->ops->manifest) 2322 return tplg->ops->manifest(tplg->comp, _manifest); 2323 2324 if (!abi_match) /* free the duplicated one */ 2325 kfree(_manifest); 2326 2327 return 0; 2328 } 2329 2330 /* validate header magic, size and type */ 2331 static int soc_valid_header(struct soc_tplg *tplg, 2332 struct snd_soc_tplg_hdr *hdr) 2333 { 2334 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size) 2335 return 0; 2336 2337 if (hdr->size != sizeof(*hdr)) { 2338 dev_err(tplg->dev, 2339 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 2340 hdr->type, soc_tplg_get_hdr_offset(tplg), 2341 tplg->fw->size); 2342 return -EINVAL; 2343 } 2344 2345 /* big endian firmware objects not supported atm */ 2346 if (hdr->magic == cpu_to_be32(SND_SOC_TPLG_MAGIC)) { 2347 dev_err(tplg->dev, 2348 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 2349 tplg->pass, hdr->magic, 2350 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2351 return -EINVAL; 2352 } 2353 2354 if (hdr->magic != SND_SOC_TPLG_MAGIC) { 2355 dev_err(tplg->dev, 2356 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2357 tplg->pass, hdr->magic, 2358 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2359 return -EINVAL; 2360 } 2361 2362 /* Support ABI from version 4 */ 2363 if (hdr->abi > SND_SOC_TPLG_ABI_VERSION 2364 || hdr->abi < SND_SOC_TPLG_ABI_VERSION_MIN) { 2365 dev_err(tplg->dev, 2366 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2367 tplg->pass, hdr->abi, 2368 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2369 tplg->fw->size); 2370 return -EINVAL; 2371 } 2372 2373 if (hdr->payload_size == 0) { 2374 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2375 soc_tplg_get_hdr_offset(tplg)); 2376 return -EINVAL; 2377 } 2378 2379 if (tplg->pass == hdr->type) 2380 dev_dbg(tplg->dev, 2381 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2382 hdr->payload_size, hdr->type, hdr->version, 2383 hdr->vendor_type, tplg->pass); 2384 2385 return 1; 2386 } 2387 2388 /* check header type and call appropriate handler */ 2389 static int soc_tplg_load_header(struct soc_tplg *tplg, 2390 struct snd_soc_tplg_hdr *hdr) 2391 { 2392 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2393 2394 /* check for matching ID */ 2395 if (hdr->index != tplg->req_index && 2396 tplg->req_index != SND_SOC_TPLG_INDEX_ALL) 2397 return 0; 2398 2399 tplg->index = hdr->index; 2400 2401 switch (hdr->type) { 2402 case SND_SOC_TPLG_TYPE_MIXER: 2403 case SND_SOC_TPLG_TYPE_ENUM: 2404 case SND_SOC_TPLG_TYPE_BYTES: 2405 return soc_tplg_kcontrol_elems_load(tplg, hdr); 2406 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2407 return soc_tplg_dapm_graph_elems_load(tplg, hdr); 2408 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2409 return soc_tplg_dapm_widget_elems_load(tplg, hdr); 2410 case SND_SOC_TPLG_TYPE_PCM: 2411 return soc_tplg_pcm_elems_load(tplg, hdr); 2412 case SND_SOC_TPLG_TYPE_DAI: 2413 return soc_tplg_dai_elems_load(tplg, hdr); 2414 case SND_SOC_TPLG_TYPE_DAI_LINK: 2415 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2416 /* physical link configurations */ 2417 return soc_tplg_link_elems_load(tplg, hdr); 2418 case SND_SOC_TPLG_TYPE_MANIFEST: 2419 return soc_tplg_manifest_load(tplg, hdr); 2420 default: 2421 /* bespoke vendor data object */ 2422 return soc_tplg_vendor_load(tplg, hdr); 2423 } 2424 2425 return 0; 2426 } 2427 2428 /* process the topology file headers */ 2429 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2430 { 2431 struct snd_soc_tplg_hdr *hdr; 2432 int ret; 2433 2434 tplg->pass = SOC_TPLG_PASS_START; 2435 2436 /* process the header types from start to end */ 2437 while (tplg->pass <= SOC_TPLG_PASS_END) { 2438 2439 tplg->hdr_pos = tplg->fw->data; 2440 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2441 2442 while (!soc_tplg_is_eof(tplg)) { 2443 2444 /* make sure header is valid before loading */ 2445 ret = soc_valid_header(tplg, hdr); 2446 if (ret < 0) 2447 return ret; 2448 else if (ret == 0) 2449 break; 2450 2451 /* load the header object */ 2452 ret = soc_tplg_load_header(tplg, hdr); 2453 if (ret < 0) 2454 return ret; 2455 2456 /* goto next header */ 2457 tplg->hdr_pos += hdr->payload_size + 2458 sizeof(struct snd_soc_tplg_hdr); 2459 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2460 } 2461 2462 /* next data type pass */ 2463 tplg->pass++; 2464 } 2465 2466 /* signal DAPM we are complete */ 2467 ret = soc_tplg_dapm_complete(tplg); 2468 if (ret < 0) 2469 dev_err(tplg->dev, 2470 "ASoC: failed to initialise DAPM from Firmware\n"); 2471 2472 return ret; 2473 } 2474 2475 static int soc_tplg_load(struct soc_tplg *tplg) 2476 { 2477 int ret; 2478 2479 ret = soc_tplg_process_headers(tplg); 2480 if (ret == 0) 2481 soc_tplg_complete(tplg); 2482 2483 return ret; 2484 } 2485 2486 /* load audio component topology from "firmware" file */ 2487 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2488 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) 2489 { 2490 struct soc_tplg tplg; 2491 2492 /* setup parsing context */ 2493 memset(&tplg, 0, sizeof(tplg)); 2494 tplg.fw = fw; 2495 tplg.dev = comp->dev; 2496 tplg.comp = comp; 2497 tplg.ops = ops; 2498 tplg.req_index = id; 2499 tplg.io_ops = ops->io_ops; 2500 tplg.io_ops_count = ops->io_ops_count; 2501 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2502 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2503 2504 return soc_tplg_load(&tplg); 2505 } 2506 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2507 2508 /* remove this dynamic widget */ 2509 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w) 2510 { 2511 /* make sure we are a widget */ 2512 if (w->dobj.type != SND_SOC_DOBJ_WIDGET) 2513 return; 2514 2515 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET); 2516 } 2517 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove); 2518 2519 /* remove all dynamic widgets from this DAPM context */ 2520 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm, 2521 u32 index) 2522 { 2523 struct snd_soc_dapm_widget *w, *next_w; 2524 2525 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { 2526 2527 /* make sure we are a widget with correct context */ 2528 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm) 2529 continue; 2530 2531 /* match ID */ 2532 if (w->dobj.index != index && 2533 w->dobj.index != SND_SOC_TPLG_INDEX_ALL) 2534 continue; 2535 /* check and free and dynamic widget kcontrols */ 2536 snd_soc_tplg_widget_remove(w); 2537 snd_soc_dapm_free_widget(w); 2538 } 2539 snd_soc_dapm_reset_cache(dapm); 2540 } 2541 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all); 2542 2543 /* remove dynamic controls from the component driver */ 2544 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index) 2545 { 2546 struct snd_soc_dobj *dobj, *next_dobj; 2547 int pass = SOC_TPLG_PASS_END; 2548 2549 /* process the header types from end to start */ 2550 while (pass >= SOC_TPLG_PASS_START) { 2551 2552 /* remove mixer controls */ 2553 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2554 list) { 2555 2556 /* match index */ 2557 if (dobj->index != index && 2558 dobj->index != SND_SOC_TPLG_INDEX_ALL) 2559 continue; 2560 2561 switch (dobj->type) { 2562 case SND_SOC_DOBJ_MIXER: 2563 remove_mixer(comp, dobj, pass); 2564 break; 2565 case SND_SOC_DOBJ_ENUM: 2566 remove_enum(comp, dobj, pass); 2567 break; 2568 case SND_SOC_DOBJ_BYTES: 2569 remove_bytes(comp, dobj, pass); 2570 break; 2571 case SND_SOC_DOBJ_WIDGET: 2572 remove_widget(comp, dobj, pass); 2573 break; 2574 case SND_SOC_DOBJ_PCM: 2575 remove_dai(comp, dobj, pass); 2576 break; 2577 case SND_SOC_DOBJ_DAI_LINK: 2578 remove_link(comp, dobj, pass); 2579 break; 2580 default: 2581 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2582 dobj->type); 2583 break; 2584 } 2585 } 2586 pass--; 2587 } 2588 2589 /* let caller know if FW can be freed when no objects are left */ 2590 return !list_empty(&comp->dobj_list); 2591 } 2592 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2593