linux/sound/soc/soc-topology.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2//
   3// soc-topology.c  --  ALSA SoC Topology
   4//
   5// Copyright (C) 2012 Texas Instruments Inc.
   6// Copyright (C) 2015 Intel Corporation.
   7//
   8// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
   9//              K, Mythri P <mythri.p.k@intel.com>
  10//              Prusty, Subhransu S <subhransu.s.prusty@intel.com>
  11//              B, Jayachandran <jayachandran.b@intel.com>
  12//              Abdullah, Omair M <omair.m.abdullah@intel.com>
  13//              Jin, Yao <yao.jin@intel.com>
  14//              Lin, Mengdong <mengdong.lin@intel.com>
  15//
  16//  Add support to read audio firmware topology alongside firmware text. The
  17//  topology data can contain kcontrols, DAPM graphs, widgets, DAIs, DAI links,
  18//  equalizers, firmware, coefficients etc.
  19//
  20//  This file only manages the core ALSA and ASoC components, all other bespoke
  21//  firmware topology data is passed to component drivers for bespoke handling.
  22
  23#include <linux/kernel.h>
  24#include <linux/export.h>
  25#include <linux/list.h>
  26#include <linux/firmware.h>
  27#include <linux/slab.h>
  28#include <sound/soc.h>
  29#include <sound/soc-dapm.h>
  30#include <sound/soc-topology.h>
  31#include <sound/tlv.h>
  32
  33#define SOC_TPLG_MAGIC_BIG_ENDIAN            0x436F5341 /* ASoC in reverse */
  34
  35/*
  36 * We make several passes over the data (since it wont necessarily be ordered)
  37 * and process objects in the following order. This guarantees the component
  38 * drivers will be ready with any vendor data before the mixers and DAPM objects
  39 * are loaded (that may make use of the vendor data).
  40 */
  41#define SOC_TPLG_PASS_MANIFEST          0
  42#define SOC_TPLG_PASS_VENDOR            1
  43#define SOC_TPLG_PASS_MIXER             2
  44#define SOC_TPLG_PASS_WIDGET            3
  45#define SOC_TPLG_PASS_PCM_DAI           4
  46#define SOC_TPLG_PASS_GRAPH             5
  47#define SOC_TPLG_PASS_PINS              6
  48#define SOC_TPLG_PASS_BE_DAI            7
  49#define SOC_TPLG_PASS_LINK              8
  50
  51#define SOC_TPLG_PASS_START     SOC_TPLG_PASS_MANIFEST
  52#define SOC_TPLG_PASS_END       SOC_TPLG_PASS_LINK
  53
  54/* topology context */
  55struct soc_tplg {
  56        const struct firmware *fw;
  57
  58        /* runtime FW parsing */
  59        const u8 *pos;          /* read postion */
  60        const u8 *hdr_pos;      /* header position */
  61        unsigned int pass;      /* pass number */
  62
  63        /* component caller */
  64        struct device *dev;
  65        struct snd_soc_component *comp;
  66        u32 index;      /* current block index */
  67        u32 req_index;  /* required index, only loaded/free matching blocks */
  68
  69        /* vendor specific kcontrol operations */
  70        const struct snd_soc_tplg_kcontrol_ops *io_ops;
  71        int io_ops_count;
  72
  73        /* vendor specific bytes ext handlers, for TLV bytes controls */
  74        const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
  75        int bytes_ext_ops_count;
  76
  77        /* optional fw loading callbacks to component drivers */
  78        struct snd_soc_tplg_ops *ops;
  79};
  80
  81static int soc_tplg_process_headers(struct soc_tplg *tplg);
  82static void soc_tplg_complete(struct soc_tplg *tplg);
  83static void soc_tplg_denum_remove_texts(struct soc_enum *se);
  84static void soc_tplg_denum_remove_values(struct soc_enum *se);
  85
  86/* check we dont overflow the data for this control chunk */
  87static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size,
  88        unsigned int count, size_t bytes, const char *elem_type)
  89{
  90        const u8 *end = tplg->pos + elem_size * count;
  91
  92        if (end > tplg->fw->data + tplg->fw->size) {
  93                dev_err(tplg->dev, "ASoC: %s overflow end of data\n",
  94                        elem_type);
  95                return -EINVAL;
  96        }
  97
  98        /* check there is enough room in chunk for control.
  99           extra bytes at the end of control are for vendor data here  */
 100        if (elem_size * count > bytes) {
 101                dev_err(tplg->dev,
 102                        "ASoC: %s count %d of size %zu is bigger than chunk %zu\n",
 103                        elem_type, count, elem_size, bytes);
 104                return -EINVAL;
 105        }
 106
 107        return 0;
 108}
 109
 110static inline int soc_tplg_is_eof(struct soc_tplg *tplg)
 111{
 112        const u8 *end = tplg->hdr_pos;
 113
 114        if (end >= tplg->fw->data + tplg->fw->size)
 115                return 1;
 116        return 0;
 117}
 118
 119static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg)
 120{
 121        return (unsigned long)(tplg->hdr_pos - tplg->fw->data);
 122}
 123
 124static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg)
 125{
 126        return (unsigned long)(tplg->pos - tplg->fw->data);
 127}
 128
 129/* mapping of Kcontrol types and associated operations. */
 130static const struct snd_soc_tplg_kcontrol_ops io_ops[] = {
 131        {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw,
 132                snd_soc_put_volsw, snd_soc_info_volsw},
 133        {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx,
 134                snd_soc_put_volsw_sx, NULL},
 135        {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double,
 136                snd_soc_put_enum_double, snd_soc_info_enum_double},
 137        {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double,
 138                snd_soc_put_enum_double, NULL},
 139        {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get,
 140                snd_soc_bytes_put, snd_soc_bytes_info},
 141        {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range,
 142                snd_soc_put_volsw_range, snd_soc_info_volsw_range},
 143        {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx,
 144                snd_soc_put_xr_sx, snd_soc_info_xr_sx},
 145        {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe,
 146                snd_soc_put_strobe, NULL},
 147        {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw,
 148                snd_soc_dapm_put_volsw, snd_soc_info_volsw},
 149        {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double,
 150                snd_soc_dapm_put_enum_double, snd_soc_info_enum_double},
 151        {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double,
 152                snd_soc_dapm_put_enum_double, NULL},
 153        {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double,
 154                snd_soc_dapm_put_enum_double, NULL},
 155        {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch,
 156                snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch},
 157};
 158
 159struct soc_tplg_map {
 160        int uid;
 161        int kid;
 162};
 163
 164/* mapping of widget types from UAPI IDs to kernel IDs */
 165static const struct soc_tplg_map dapm_map[] = {
 166        {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input},
 167        {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output},
 168        {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux},
 169        {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer},
 170        {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga},
 171        {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv},
 172        {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc},
 173        {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac},
 174        {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch},
 175        {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre},
 176        {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post},
 177        {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in},
 178        {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out},
 179        {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in},
 180        {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out},
 181        {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link},
 182        {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer},
 183        {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler},
 184        {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect},
 185        {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen},
 186        {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src},
 187        {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc},
 188        {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder},
 189        {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder},
 190};
 191
 192static int tplc_chan_get_reg(struct soc_tplg *tplg,
 193        struct snd_soc_tplg_channel *chan, int map)
 194{
 195        int i;
 196
 197        for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
 198                if (le32_to_cpu(chan[i].id) == map)
 199                        return le32_to_cpu(chan[i].reg);
 200        }
 201
 202        return -EINVAL;
 203}
 204
 205static int tplc_chan_get_shift(struct soc_tplg *tplg,
 206        struct snd_soc_tplg_channel *chan, int map)
 207{
 208        int i;
 209
 210        for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
 211                if (le32_to_cpu(chan[i].id) == map)
 212                        return le32_to_cpu(chan[i].shift);
 213        }
 214
 215        return -EINVAL;
 216}
 217
 218static int get_widget_id(int tplg_type)
 219{
 220        int i;
 221
 222        for (i = 0; i < ARRAY_SIZE(dapm_map); i++) {
 223                if (tplg_type == dapm_map[i].uid)
 224                        return dapm_map[i].kid;
 225        }
 226
 227        return -EINVAL;
 228}
 229
 230static inline void soc_bind_err(struct soc_tplg *tplg,
 231        struct snd_soc_tplg_ctl_hdr *hdr, int index)
 232{
 233        dev_err(tplg->dev,
 234                "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n",
 235                hdr->ops.get, hdr->ops.put, hdr->ops.info, index,
 236                soc_tplg_get_offset(tplg));
 237}
 238
 239static inline void soc_control_err(struct soc_tplg *tplg,
 240        struct snd_soc_tplg_ctl_hdr *hdr, const char *name)
 241{
 242        dev_err(tplg->dev,
 243                "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n",
 244                name, hdr->ops.get, hdr->ops.put, hdr->ops.info,
 245                soc_tplg_get_offset(tplg));
 246}
 247
 248/* pass vendor data to component driver for processing */
 249static int soc_tplg_vendor_load_(struct soc_tplg *tplg,
 250        struct snd_soc_tplg_hdr *hdr)
 251{
 252        int ret = 0;
 253
 254        if (tplg->comp && tplg->ops && tplg->ops->vendor_load)
 255                ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr);
 256        else {
 257                dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n",
 258                        hdr->vendor_type);
 259                return -EINVAL;
 260        }
 261
 262        if (ret < 0)
 263                dev_err(tplg->dev,
 264                        "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n",
 265                        soc_tplg_get_hdr_offset(tplg),
 266                        soc_tplg_get_hdr_offset(tplg),
 267                        hdr->type, hdr->vendor_type);
 268        return ret;
 269}
 270
 271/* pass vendor data to component driver for processing */
 272static int soc_tplg_vendor_load(struct soc_tplg *tplg,
 273        struct snd_soc_tplg_hdr *hdr)
 274{
 275        if (tplg->pass != SOC_TPLG_PASS_VENDOR)
 276                return 0;
 277
 278        return soc_tplg_vendor_load_(tplg, hdr);
 279}
 280
 281/* optionally pass new dynamic widget to component driver. This is mainly for
 282 * external widgets where we can assign private data/ops */
 283static int soc_tplg_widget_load(struct soc_tplg *tplg,
 284        struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
 285{
 286        if (tplg->comp && tplg->ops && tplg->ops->widget_load)
 287                return tplg->ops->widget_load(tplg->comp, tplg->index, w,
 288                        tplg_w);
 289
 290        return 0;
 291}
 292
 293/* optionally pass new dynamic widget to component driver. This is mainly for
 294 * external widgets where we can assign private data/ops */
 295static int soc_tplg_widget_ready(struct soc_tplg *tplg,
 296        struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
 297{
 298        if (tplg->comp && tplg->ops && tplg->ops->widget_ready)
 299                return tplg->ops->widget_ready(tplg->comp, tplg->index, w,
 300                        tplg_w);
 301
 302        return 0;
 303}
 304
 305/* pass DAI configurations to component driver for extra initialization */
 306static int soc_tplg_dai_load(struct soc_tplg *tplg,
 307        struct snd_soc_dai_driver *dai_drv,
 308        struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai)
 309{
 310        if (tplg->comp && tplg->ops && tplg->ops->dai_load)
 311                return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv,
 312                        pcm, dai);
 313
 314        return 0;
 315}
 316
 317/* pass link configurations to component driver for extra initialization */
 318static int soc_tplg_dai_link_load(struct soc_tplg *tplg,
 319        struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg)
 320{
 321        if (tplg->comp && tplg->ops && tplg->ops->link_load)
 322                return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg);
 323
 324        return 0;
 325}
 326
 327/* tell the component driver that all firmware has been loaded in this request */
 328static void soc_tplg_complete(struct soc_tplg *tplg)
 329{
 330        if (tplg->comp && tplg->ops && tplg->ops->complete)
 331                tplg->ops->complete(tplg->comp);
 332}
 333
 334/* add a dynamic kcontrol */
 335static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev,
 336        const struct snd_kcontrol_new *control_new, const char *prefix,
 337        void *data, struct snd_kcontrol **kcontrol)
 338{
 339        int err;
 340
 341        *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix);
 342        if (*kcontrol == NULL) {
 343                dev_err(dev, "ASoC: Failed to create new kcontrol %s\n",
 344                control_new->name);
 345                return -ENOMEM;
 346        }
 347
 348        err = snd_ctl_add(card, *kcontrol);
 349        if (err < 0) {
 350                dev_err(dev, "ASoC: Failed to add %s: %d\n",
 351                        control_new->name, err);
 352                return err;
 353        }
 354
 355        return 0;
 356}
 357
 358/* add a dynamic kcontrol for component driver */
 359static int soc_tplg_add_kcontrol(struct soc_tplg *tplg,
 360        struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol)
 361{
 362        struct snd_soc_component *comp = tplg->comp;
 363
 364        return soc_tplg_add_dcontrol(comp->card->snd_card,
 365                                comp->dev, k, NULL, comp, kcontrol);
 366}
 367
 368/* remove a mixer kcontrol */
 369static void remove_mixer(struct snd_soc_component *comp,
 370        struct snd_soc_dobj *dobj, int pass)
 371{
 372        struct snd_card *card = comp->card->snd_card;
 373        struct soc_mixer_control *sm =
 374                container_of(dobj, struct soc_mixer_control, dobj);
 375        const unsigned int *p = NULL;
 376
 377        if (pass != SOC_TPLG_PASS_MIXER)
 378                return;
 379
 380        if (dobj->ops && dobj->ops->control_unload)
 381                dobj->ops->control_unload(comp, dobj);
 382
 383        if (dobj->control.kcontrol->tlv.p)
 384                p = dobj->control.kcontrol->tlv.p;
 385        snd_ctl_remove(card, dobj->control.kcontrol);
 386        list_del(&dobj->list);
 387        kfree(sm);
 388        kfree(p);
 389}
 390
 391/* remove an enum kcontrol */
 392static void remove_enum(struct snd_soc_component *comp,
 393        struct snd_soc_dobj *dobj, int pass)
 394{
 395        struct snd_card *card = comp->card->snd_card;
 396        struct soc_enum *se = container_of(dobj, struct soc_enum, dobj);
 397
 398        if (pass != SOC_TPLG_PASS_MIXER)
 399                return;
 400
 401        if (dobj->ops && dobj->ops->control_unload)
 402                dobj->ops->control_unload(comp, dobj);
 403
 404        snd_ctl_remove(card, dobj->control.kcontrol);
 405        list_del(&dobj->list);
 406
 407        soc_tplg_denum_remove_values(se);
 408        soc_tplg_denum_remove_texts(se);
 409        kfree(se);
 410}
 411
 412/* remove a byte kcontrol */
 413static void remove_bytes(struct snd_soc_component *comp,
 414        struct snd_soc_dobj *dobj, int pass)
 415{
 416        struct snd_card *card = comp->card->snd_card;
 417        struct soc_bytes_ext *sb =
 418                container_of(dobj, struct soc_bytes_ext, dobj);
 419
 420        if (pass != SOC_TPLG_PASS_MIXER)
 421                return;
 422
 423        if (dobj->ops && dobj->ops->control_unload)
 424                dobj->ops->control_unload(comp, dobj);
 425
 426        snd_ctl_remove(card, dobj->control.kcontrol);
 427        list_del(&dobj->list);
 428        kfree(sb);
 429}
 430
 431/* remove a route */
 432static void remove_route(struct snd_soc_component *comp,
 433                         struct snd_soc_dobj *dobj, int pass)
 434{
 435        struct snd_soc_dapm_route *route =
 436                container_of(dobj, struct snd_soc_dapm_route, dobj);
 437
 438        if (pass != SOC_TPLG_PASS_GRAPH)
 439                return;
 440
 441        if (dobj->ops && dobj->ops->dapm_route_unload)
 442                dobj->ops->dapm_route_unload(comp, dobj);
 443
 444        list_del(&dobj->list);
 445        kfree(route);
 446}
 447
 448/* remove a widget and it's kcontrols - routes must be removed first */
 449static void remove_widget(struct snd_soc_component *comp,
 450        struct snd_soc_dobj *dobj, int pass)
 451{
 452        struct snd_card *card = comp->card->snd_card;
 453        struct snd_soc_dapm_widget *w =
 454                container_of(dobj, struct snd_soc_dapm_widget, dobj);
 455        int i;
 456
 457        if (pass != SOC_TPLG_PASS_WIDGET)
 458                return;
 459
 460        if (dobj->ops && dobj->ops->widget_unload)
 461                dobj->ops->widget_unload(comp, dobj);
 462
 463        if (!w->kcontrols)
 464                goto free_news;
 465
 466        /*
 467         * Dynamic Widgets either have 1..N enum kcontrols or mixers.
 468         * The enum may either have an array of values or strings.
 469         */
 470        if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) {
 471                /* enumerated widget mixer */
 472                for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
 473                        struct snd_kcontrol *kcontrol = w->kcontrols[i];
 474                        struct soc_enum *se =
 475                                (struct soc_enum *)kcontrol->private_value;
 476
 477                        snd_ctl_remove(card, kcontrol);
 478
 479                        /* free enum kcontrol's dvalues and dtexts */
 480                        soc_tplg_denum_remove_values(se);
 481                        soc_tplg_denum_remove_texts(se);
 482
 483                        kfree(se);
 484                        kfree(w->kcontrol_news[i].name);
 485                }
 486        } else {
 487                /* volume mixer or bytes controls */
 488                for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
 489                        struct snd_kcontrol *kcontrol = w->kcontrols[i];
 490
 491                        if (dobj->widget.kcontrol_type
 492                            == SND_SOC_TPLG_TYPE_MIXER)
 493                                kfree(kcontrol->tlv.p);
 494
 495                        /* Private value is used as struct soc_mixer_control
 496                         * for volume mixers or soc_bytes_ext for bytes
 497                         * controls.
 498                         */
 499                        kfree((void *)kcontrol->private_value);
 500                        snd_ctl_remove(card, kcontrol);
 501                        kfree(w->kcontrol_news[i].name);
 502                }
 503        }
 504
 505free_news:
 506        kfree(w->kcontrol_news);
 507
 508        list_del(&dobj->list);
 509
 510        /* widget w is freed by soc-dapm.c */
 511}
 512
 513/* remove DAI configurations */
 514static void remove_dai(struct snd_soc_component *comp,
 515        struct snd_soc_dobj *dobj, int pass)
 516{
 517        struct snd_soc_dai_driver *dai_drv =
 518                container_of(dobj, struct snd_soc_dai_driver, dobj);
 519        struct snd_soc_dai *dai;
 520
 521        if (pass != SOC_TPLG_PASS_PCM_DAI)
 522                return;
 523
 524        if (dobj->ops && dobj->ops->dai_unload)
 525                dobj->ops->dai_unload(comp, dobj);
 526
 527        for_each_component_dais(comp, dai)
 528                if (dai->driver == dai_drv)
 529                        dai->driver = NULL;
 530
 531        kfree(dai_drv->playback.stream_name);
 532        kfree(dai_drv->capture.stream_name);
 533        kfree(dai_drv->name);
 534        list_del(&dobj->list);
 535        kfree(dai_drv);
 536}
 537
 538/* remove link configurations */
 539static void remove_link(struct snd_soc_component *comp,
 540        struct snd_soc_dobj *dobj, int pass)
 541{
 542        struct snd_soc_dai_link *link =
 543                container_of(dobj, struct snd_soc_dai_link, dobj);
 544
 545        if (pass != SOC_TPLG_PASS_PCM_DAI)
 546                return;
 547
 548        if (dobj->ops && dobj->ops->link_unload)
 549                dobj->ops->link_unload(comp, dobj);
 550
 551        kfree(link->name);
 552        kfree(link->stream_name);
 553        kfree(link->cpus->dai_name);
 554
 555        list_del(&dobj->list);
 556        snd_soc_remove_dai_link(comp->card, link);
 557        kfree(link);
 558}
 559
 560/* unload dai link */
 561static void remove_backend_link(struct snd_soc_component *comp,
 562        struct snd_soc_dobj *dobj, int pass)
 563{
 564        if (pass != SOC_TPLG_PASS_LINK)
 565                return;
 566
 567        if (dobj->ops && dobj->ops->link_unload)
 568                dobj->ops->link_unload(comp, dobj);
 569
 570        /*
 571         * We don't free the link here as what remove_link() do since BE
 572         * links are not allocated by topology.
 573         * We however need to reset the dobj type to its initial values
 574         */
 575        dobj->type = SND_SOC_DOBJ_NONE;
 576        list_del(&dobj->list);
 577}
 578
 579/* bind a kcontrol to it's IO handlers */
 580static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 581        struct snd_kcontrol_new *k,
 582        const struct soc_tplg *tplg)
 583{
 584        const struct snd_soc_tplg_kcontrol_ops *ops;
 585        const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
 586        int num_ops, i;
 587
 588        if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES
 589                && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
 590                && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
 591                && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
 592                struct soc_bytes_ext *sbe;
 593                struct snd_soc_tplg_bytes_control *be;
 594
 595                sbe = (struct soc_bytes_ext *)k->private_value;
 596                be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
 597
 598                /* TLV bytes controls need standard kcontrol info handler,
 599                 * TLV callback and extended put/get handlers.
 600                 */
 601                k->info = snd_soc_bytes_info_ext;
 602                k->tlv.c = snd_soc_bytes_tlv_callback;
 603
 604                ext_ops = tplg->bytes_ext_ops;
 605                num_ops = tplg->bytes_ext_ops_count;
 606                for (i = 0; i < num_ops; i++) {
 607                        if (!sbe->put && ext_ops[i].id == be->ext_ops.put)
 608                                sbe->put = ext_ops[i].put;
 609                        if (!sbe->get && ext_ops[i].id == be->ext_ops.get)
 610                                sbe->get = ext_ops[i].get;
 611                }
 612
 613                if (sbe->put && sbe->get)
 614                        return 0;
 615                else
 616                        return -EINVAL;
 617        }
 618
 619        /* try and map vendor specific kcontrol handlers first */
 620        ops = tplg->io_ops;
 621        num_ops = tplg->io_ops_count;
 622        for (i = 0; i < num_ops; i++) {
 623
 624                if (k->put == NULL && ops[i].id == hdr->ops.put)
 625                        k->put = ops[i].put;
 626                if (k->get == NULL && ops[i].id == hdr->ops.get)
 627                        k->get = ops[i].get;
 628                if (k->info == NULL && ops[i].id == hdr->ops.info)
 629                        k->info = ops[i].info;
 630        }
 631
 632        /* vendor specific handlers found ? */
 633        if (k->put && k->get && k->info)
 634                return 0;
 635
 636        /* none found so try standard kcontrol handlers */
 637        ops = io_ops;
 638        num_ops = ARRAY_SIZE(io_ops);
 639        for (i = 0; i < num_ops; i++) {
 640
 641                if (k->put == NULL && ops[i].id == hdr->ops.put)
 642                        k->put = ops[i].put;
 643                if (k->get == NULL && ops[i].id == hdr->ops.get)
 644                        k->get = ops[i].get;
 645                if (k->info == NULL && ops[i].id == hdr->ops.info)
 646                        k->info = ops[i].info;
 647        }
 648
 649        /* standard handlers found ? */
 650        if (k->put && k->get && k->info)
 651                return 0;
 652
 653        /* nothing to bind */
 654        return -EINVAL;
 655}
 656
 657/* bind a widgets to it's evnt handlers */
 658int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
 659                const struct snd_soc_tplg_widget_events *events,
 660                int num_events, u16 event_type)
 661{
 662        int i;
 663
 664        w->event = NULL;
 665
 666        for (i = 0; i < num_events; i++) {
 667                if (event_type == events[i].type) {
 668
 669                        /* found - so assign event */
 670                        w->event = events[i].event_handler;
 671                        return 0;
 672                }
 673        }
 674
 675        /* not found */
 676        return -EINVAL;
 677}
 678EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event);
 679
 680/* optionally pass new dynamic kcontrol to component driver. */
 681static int soc_tplg_init_kcontrol(struct soc_tplg *tplg,
 682        struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr)
 683{
 684        if (tplg->comp && tplg->ops && tplg->ops->control_load)
 685                return tplg->ops->control_load(tplg->comp, tplg->index, k,
 686                        hdr);
 687
 688        return 0;
 689}
 690
 691
 692static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg,
 693        struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale)
 694{
 695        unsigned int item_len = 2 * sizeof(unsigned int);
 696        unsigned int *p;
 697
 698        p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
 699        if (!p)
 700                return -ENOMEM;
 701
 702        p[0] = SNDRV_CTL_TLVT_DB_SCALE;
 703        p[1] = item_len;
 704        p[2] = le32_to_cpu(scale->min);
 705        p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK)
 706                | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0);
 707
 708        kc->tlv.p = (void *)p;
 709        return 0;
 710}
 711
 712static int soc_tplg_create_tlv(struct soc_tplg *tplg,
 713        struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc)
 714{
 715        struct snd_soc_tplg_ctl_tlv *tplg_tlv;
 716        u32 access = le32_to_cpu(tc->access);
 717
 718        if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
 719                return 0;
 720
 721        if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
 722                tplg_tlv = &tc->tlv;
 723                switch (le32_to_cpu(tplg_tlv->type)) {
 724                case SNDRV_CTL_TLVT_DB_SCALE:
 725                        return soc_tplg_create_tlv_db_scale(tplg, kc,
 726                                        &tplg_tlv->scale);
 727
 728                /* TODO: add support for other TLV types */
 729                default:
 730                        dev_dbg(tplg->dev, "Unsupported TLV type %d\n",
 731                                        tplg_tlv->type);
 732                        return -EINVAL;
 733                }
 734        }
 735
 736        return 0;
 737}
 738
 739static inline void soc_tplg_free_tlv(struct soc_tplg *tplg,
 740        struct snd_kcontrol_new *kc)
 741{
 742        kfree(kc->tlv.p);
 743}
 744
 745static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
 746        size_t size)
 747{
 748        struct snd_soc_tplg_bytes_control *be;
 749        struct soc_bytes_ext *sbe;
 750        struct snd_kcontrol_new kc;
 751        int i, err;
 752
 753        if (soc_tplg_check_elem_count(tplg,
 754                sizeof(struct snd_soc_tplg_bytes_control), count,
 755                        size, "mixer bytes")) {
 756                dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n",
 757                        count);
 758                return -EINVAL;
 759        }
 760
 761        for (i = 0; i < count; i++) {
 762                be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
 763
 764                /* validate kcontrol */
 765                if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
 766                        SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 767                        return -EINVAL;
 768
 769                sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
 770                if (sbe == NULL)
 771                        return -ENOMEM;
 772
 773                tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
 774                              le32_to_cpu(be->priv.size));
 775
 776                dev_dbg(tplg->dev,
 777                        "ASoC: adding bytes kcontrol %s with access 0x%x\n",
 778                        be->hdr.name, be->hdr.access);
 779
 780                memset(&kc, 0, sizeof(kc));
 781                kc.name = be->hdr.name;
 782                kc.private_value = (long)sbe;
 783                kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 784                kc.access = le32_to_cpu(be->hdr.access);
 785
 786                sbe->max = le32_to_cpu(be->max);
 787                sbe->dobj.type = SND_SOC_DOBJ_BYTES;
 788                sbe->dobj.ops = tplg->ops;
 789                INIT_LIST_HEAD(&sbe->dobj.list);
 790
 791                /* map io handlers */
 792                err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
 793                if (err) {
 794                        soc_control_err(tplg, &be->hdr, be->hdr.name);
 795                        kfree(sbe);
 796                        continue;
 797                }
 798
 799                /* pass control to driver for optional further init */
 800                err = soc_tplg_init_kcontrol(tplg, &kc,
 801                        (struct snd_soc_tplg_ctl_hdr *)be);
 802                if (err < 0) {
 803                        dev_err(tplg->dev, "ASoC: failed to init %s\n",
 804                                be->hdr.name);
 805                        kfree(sbe);
 806                        continue;
 807                }
 808
 809                /* register control here */
 810                err = soc_tplg_add_kcontrol(tplg, &kc,
 811                        &sbe->dobj.control.kcontrol);
 812                if (err < 0) {
 813                        dev_err(tplg->dev, "ASoC: failed to add %s\n",
 814                                be->hdr.name);
 815                        kfree(sbe);
 816                        continue;
 817                }
 818
 819                list_add(&sbe->dobj.list, &tplg->comp->dobj_list);
 820        }
 821        return 0;
 822
 823}
 824
 825static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
 826        size_t size)
 827{
 828        struct snd_soc_tplg_mixer_control *mc;
 829        struct soc_mixer_control *sm;
 830        struct snd_kcontrol_new kc;
 831        int i, err;
 832
 833        if (soc_tplg_check_elem_count(tplg,
 834                sizeof(struct snd_soc_tplg_mixer_control),
 835                count, size, "mixers")) {
 836
 837                dev_err(tplg->dev, "ASoC: invalid count %d for controls\n",
 838                        count);
 839                return -EINVAL;
 840        }
 841
 842        for (i = 0; i < count; i++) {
 843                mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
 844
 845                /* validate kcontrol */
 846                if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
 847                        SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 848                        return -EINVAL;
 849
 850                sm = kzalloc(sizeof(*sm), GFP_KERNEL);
 851                if (sm == NULL)
 852                        return -ENOMEM;
 853                tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
 854                              le32_to_cpu(mc->priv.size));
 855
 856                dev_dbg(tplg->dev,
 857                        "ASoC: adding mixer kcontrol %s with access 0x%x\n",
 858                        mc->hdr.name, mc->hdr.access);
 859
 860                memset(&kc, 0, sizeof(kc));
 861                kc.name = mc->hdr.name;
 862                kc.private_value = (long)sm;
 863                kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 864                kc.access = le32_to_cpu(mc->hdr.access);
 865
 866                /* we only support FL/FR channel mapping atm */
 867                sm->reg = tplc_chan_get_reg(tplg, mc->channel,
 868                        SNDRV_CHMAP_FL);
 869                sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
 870                        SNDRV_CHMAP_FR);
 871                sm->shift = tplc_chan_get_shift(tplg, mc->channel,
 872                        SNDRV_CHMAP_FL);
 873                sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
 874                        SNDRV_CHMAP_FR);
 875
 876                sm->max = le32_to_cpu(mc->max);
 877                sm->min = le32_to_cpu(mc->min);
 878                sm->invert = le32_to_cpu(mc->invert);
 879                sm->platform_max = le32_to_cpu(mc->platform_max);
 880                sm->dobj.index = tplg->index;
 881                sm->dobj.ops = tplg->ops;
 882                sm->dobj.type = SND_SOC_DOBJ_MIXER;
 883                INIT_LIST_HEAD(&sm->dobj.list);
 884
 885                /* map io handlers */
 886                err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
 887                if (err) {
 888                        soc_control_err(tplg, &mc->hdr, mc->hdr.name);
 889                        kfree(sm);
 890                        continue;
 891                }
 892
 893                /* create any TLV data */
 894                soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
 895
 896                /* pass control to driver for optional further init */
 897                err = soc_tplg_init_kcontrol(tplg, &kc,
 898                        (struct snd_soc_tplg_ctl_hdr *) mc);
 899                if (err < 0) {
 900                        dev_err(tplg->dev, "ASoC: failed to init %s\n",
 901                                mc->hdr.name);
 902                        soc_tplg_free_tlv(tplg, &kc);
 903                        kfree(sm);
 904                        continue;
 905                }
 906
 907                /* register control here */
 908                err = soc_tplg_add_kcontrol(tplg, &kc,
 909                        &sm->dobj.control.kcontrol);
 910                if (err < 0) {
 911                        dev_err(tplg->dev, "ASoC: failed to add %s\n",
 912                                mc->hdr.name);
 913                        soc_tplg_free_tlv(tplg, &kc);
 914                        kfree(sm);
 915                        continue;
 916                }
 917
 918                list_add(&sm->dobj.list, &tplg->comp->dobj_list);
 919        }
 920
 921        return 0;
 922}
 923
 924static int soc_tplg_denum_create_texts(struct soc_enum *se,
 925        struct snd_soc_tplg_enum_control *ec)
 926{
 927        int i, ret;
 928
 929        se->dobj.control.dtexts =
 930                kcalloc(le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL);
 931        if (se->dobj.control.dtexts == NULL)
 932                return -ENOMEM;
 933
 934        for (i = 0; i < ec->items; i++) {
 935
 936                if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
 937                        SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
 938                        ret = -EINVAL;
 939                        goto err;
 940                }
 941
 942                se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL);
 943                if (!se->dobj.control.dtexts[i]) {
 944                        ret = -ENOMEM;
 945                        goto err;
 946                }
 947        }
 948
 949        se->items = le32_to_cpu(ec->items);
 950        se->texts = (const char * const *)se->dobj.control.dtexts;
 951        return 0;
 952
 953err:
 954        se->items = i;
 955        soc_tplg_denum_remove_texts(se);
 956        return ret;
 957}
 958
 959static inline void soc_tplg_denum_remove_texts(struct soc_enum *se)
 960{
 961        int i = se->items;
 962
 963        for (--i; i >= 0; i--)
 964                kfree(se->dobj.control.dtexts[i]);
 965        kfree(se->dobj.control.dtexts);
 966}
 967
 968static int soc_tplg_denum_create_values(struct soc_enum *se,
 969        struct snd_soc_tplg_enum_control *ec)
 970{
 971        int i;
 972
 973        if (le32_to_cpu(ec->items) > sizeof(*ec->values))
 974                return -EINVAL;
 975
 976        se->dobj.control.dvalues = kzalloc(le32_to_cpu(ec->items) *
 977                                           sizeof(u32),
 978                                           GFP_KERNEL);
 979        if (!se->dobj.control.dvalues)
 980                return -ENOMEM;
 981
 982        /* convert from little-endian */
 983        for (i = 0; i < le32_to_cpu(ec->items); i++) {
 984                se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]);
 985        }
 986
 987        return 0;
 988}
 989
 990static inline void soc_tplg_denum_remove_values(struct soc_enum *se)
 991{
 992        kfree(se->dobj.control.dvalues);
 993}
 994
 995static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
 996        size_t size)
 997{
 998        struct snd_soc_tplg_enum_control *ec;
 999        struct soc_enum *se;
1000        struct snd_kcontrol_new kc;
1001        int i, ret, err;
1002
1003        if (soc_tplg_check_elem_count(tplg,
1004                sizeof(struct snd_soc_tplg_enum_control),
1005                count, size, "enums")) {
1006
1007                dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n",
1008                        count);
1009                return -EINVAL;
1010        }
1011
1012        for (i = 0; i < count; i++) {
1013                ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1014
1015                /* validate kcontrol */
1016                if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1017                        SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1018                        return -EINVAL;
1019
1020                se = kzalloc((sizeof(*se)), GFP_KERNEL);
1021                if (se == NULL)
1022                        return -ENOMEM;
1023
1024                tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1025                              le32_to_cpu(ec->priv.size));
1026
1027                dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n",
1028                        ec->hdr.name, ec->items);
1029
1030                memset(&kc, 0, sizeof(kc));
1031                kc.name = ec->hdr.name;
1032                kc.private_value = (long)se;
1033                kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1034                kc.access = le32_to_cpu(ec->hdr.access);
1035
1036                se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1037                se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1038                        SNDRV_CHMAP_FL);
1039                se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1040                        SNDRV_CHMAP_FL);
1041
1042                se->mask = le32_to_cpu(ec->mask);
1043                se->dobj.index = tplg->index;
1044                se->dobj.type = SND_SOC_DOBJ_ENUM;
1045                se->dobj.ops = tplg->ops;
1046                INIT_LIST_HEAD(&se->dobj.list);
1047
1048                switch (le32_to_cpu(ec->hdr.ops.info)) {
1049                case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1050                case SND_SOC_TPLG_CTL_ENUM_VALUE:
1051                        err = soc_tplg_denum_create_values(se, ec);
1052                        if (err < 0) {
1053                                dev_err(tplg->dev,
1054                                        "ASoC: could not create values for %s\n",
1055                                        ec->hdr.name);
1056                                kfree(se);
1057                                continue;
1058                        }
1059                        /* fall through */
1060                case SND_SOC_TPLG_CTL_ENUM:
1061                case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1062                case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1063                        err = soc_tplg_denum_create_texts(se, ec);
1064                        if (err < 0) {
1065                                dev_err(tplg->dev,
1066                                        "ASoC: could not create texts for %s\n",
1067                                        ec->hdr.name);
1068                                kfree(se);
1069                                continue;
1070                        }
1071                        break;
1072                default:
1073                        dev_err(tplg->dev,
1074                                "ASoC: invalid enum control type %d for %s\n",
1075                                ec->hdr.ops.info, ec->hdr.name);
1076                        kfree(se);
1077                        continue;
1078                }
1079
1080                /* map io handlers */
1081                err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
1082                if (err) {
1083                        soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1084                        kfree(se);
1085                        continue;
1086                }
1087
1088                /* pass control to driver for optional further init */
1089                err = soc_tplg_init_kcontrol(tplg, &kc,
1090                        (struct snd_soc_tplg_ctl_hdr *) ec);
1091                if (err < 0) {
1092                        dev_err(tplg->dev, "ASoC: failed to init %s\n",
1093                                ec->hdr.name);
1094                        kfree(se);
1095                        continue;
1096                }
1097
1098                /* register control here */
1099                ret = soc_tplg_add_kcontrol(tplg,
1100                        &kc, &se->dobj.control.kcontrol);
1101                if (ret < 0) {
1102                        dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n",
1103                                ec->hdr.name);
1104                        kfree(se);
1105                        continue;
1106                }
1107
1108                list_add(&se->dobj.list, &tplg->comp->dobj_list);
1109        }
1110
1111        return 0;
1112}
1113
1114static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
1115        struct snd_soc_tplg_hdr *hdr)
1116{
1117        struct snd_soc_tplg_ctl_hdr *control_hdr;
1118        int i;
1119
1120        if (tplg->pass != SOC_TPLG_PASS_MIXER) {
1121                tplg->pos += le32_to_cpu(hdr->size) +
1122                        le32_to_cpu(hdr->payload_size);
1123                return 0;
1124        }
1125
1126        dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
1127                soc_tplg_get_offset(tplg));
1128
1129        for (i = 0; i < le32_to_cpu(hdr->count); i++) {
1130
1131                control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1132
1133                if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) {
1134                        dev_err(tplg->dev, "ASoC: invalid control size\n");
1135                        return -EINVAL;
1136                }
1137
1138                switch (le32_to_cpu(control_hdr->ops.info)) {
1139                case SND_SOC_TPLG_CTL_VOLSW:
1140                case SND_SOC_TPLG_CTL_STROBE:
1141                case SND_SOC_TPLG_CTL_VOLSW_SX:
1142                case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1143                case SND_SOC_TPLG_CTL_RANGE:
1144                case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1145                case SND_SOC_TPLG_DAPM_CTL_PIN:
1146                        soc_tplg_dmixer_create(tplg, 1,
1147                                               le32_to_cpu(hdr->payload_size));
1148                        break;
1149                case SND_SOC_TPLG_CTL_ENUM:
1150                case SND_SOC_TPLG_CTL_ENUM_VALUE:
1151                case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1152                case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1153                case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1154                        soc_tplg_denum_create(tplg, 1,
1155                                              le32_to_cpu(hdr->payload_size));
1156                        break;
1157                case SND_SOC_TPLG_CTL_BYTES:
1158                        soc_tplg_dbytes_create(tplg, 1,
1159                                               le32_to_cpu(hdr->payload_size));
1160                        break;
1161                default:
1162                        soc_bind_err(tplg, control_hdr, i);
1163                        return -EINVAL;
1164                }
1165        }
1166
1167        return 0;
1168}
1169
1170/* optionally pass new dynamic kcontrol to component driver. */
1171static int soc_tplg_add_route(struct soc_tplg *tplg,
1172        struct snd_soc_dapm_route *route)
1173{
1174        if (tplg->comp && tplg->ops && tplg->ops->dapm_route_load)
1175                return tplg->ops->dapm_route_load(tplg->comp, tplg->index,
1176                        route);
1177
1178        return 0;
1179}
1180
1181static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
1182        struct snd_soc_tplg_hdr *hdr)
1183{
1184        struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1185        struct snd_soc_tplg_dapm_graph_elem *elem;
1186        struct snd_soc_dapm_route **routes;
1187        int count, i, j;
1188        int ret = 0;
1189
1190        count = le32_to_cpu(hdr->count);
1191
1192        if (tplg->pass != SOC_TPLG_PASS_GRAPH) {
1193                tplg->pos +=
1194                        le32_to_cpu(hdr->size) +
1195                        le32_to_cpu(hdr->payload_size);
1196
1197                return 0;
1198        }
1199
1200        if (soc_tplg_check_elem_count(tplg,
1201                sizeof(struct snd_soc_tplg_dapm_graph_elem),
1202                count, le32_to_cpu(hdr->payload_size), "graph")) {
1203
1204                dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n",
1205                        count);
1206                return -EINVAL;
1207        }
1208
1209        dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
1210                hdr->index);
1211
1212        /* allocate memory for pointer to array of dapm routes */
1213        routes = kcalloc(count, sizeof(struct snd_soc_dapm_route *),
1214                         GFP_KERNEL);
1215        if (!routes)
1216                return -ENOMEM;
1217
1218        /*
1219         * allocate memory for each dapm route in the array.
1220         * This needs to be done individually so that
1221         * each route can be freed when it is removed in remove_route().
1222         */
1223        for (i = 0; i < count; i++) {
1224                routes[i] = kzalloc(sizeof(*routes[i]), GFP_KERNEL);
1225                if (!routes[i]) {
1226                        /* free previously allocated memory */
1227                        for (j = 0; j < i; j++)
1228                                kfree(routes[j]);
1229
1230                        kfree(routes);
1231                        return -ENOMEM;
1232                }
1233        }
1234
1235        for (i = 0; i < count; i++) {
1236                elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos;
1237                tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem);
1238
1239                /* validate routes */
1240                if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1241                            SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1242                        ret = -EINVAL;
1243                        break;
1244                }
1245                if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1246                            SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1247                        ret = -EINVAL;
1248                        break;
1249                }
1250                if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1251                            SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1252                        ret = -EINVAL;
1253                        break;
1254                }
1255
1256                routes[i]->source = elem->source;
1257                routes[i]->sink = elem->sink;
1258
1259                /* set to NULL atm for tplg users */
1260                routes[i]->connected = NULL;
1261                if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0)
1262                        routes[i]->control = NULL;
1263                else
1264                        routes[i]->control = elem->control;
1265
1266                /* add route dobj to dobj_list */
1267                routes[i]->dobj.type = SND_SOC_DOBJ_GRAPH;
1268                routes[i]->dobj.ops = tplg->ops;
1269                routes[i]->dobj.index = tplg->index;
1270                list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list);
1271
1272                soc_tplg_add_route(tplg, routes[i]);
1273
1274                /* add route, but keep going if some fail */
1275                snd_soc_dapm_add_routes(dapm, routes[i], 1);
1276        }
1277
1278        /* free memory allocated for all dapm routes in case of error */
1279        if (ret < 0)
1280                for (i = 0; i < count ; i++)
1281                        kfree(routes[i]);
1282
1283        /*
1284         * free pointer to array of dapm routes as this is no longer needed.
1285         * The memory allocated for each dapm route will be freed
1286         * when it is removed in remove_route().
1287         */
1288        kfree(routes);
1289
1290        return ret;
1291}
1292
1293static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
1294        struct soc_tplg *tplg, int num_kcontrols)
1295{
1296        struct snd_kcontrol_new *kc;
1297        struct soc_mixer_control *sm;
1298        struct snd_soc_tplg_mixer_control *mc;
1299        int i, err;
1300
1301        kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1302        if (kc == NULL)
1303                return NULL;
1304
1305        for (i = 0; i < num_kcontrols; i++) {
1306                mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
1307
1308                /* validate kcontrol */
1309                if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1310                        SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1311                        goto err_sm;
1312
1313                sm = kzalloc(sizeof(*sm), GFP_KERNEL);
1314                if (sm == NULL)
1315                        goto err_sm;
1316
1317                tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
1318                              le32_to_cpu(mc->priv.size));
1319
1320                dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n",
1321                        mc->hdr.name, i);
1322
1323                kc[i].private_value = (long)sm;
1324                kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL);
1325                if (kc[i].name == NULL)
1326                        goto err_sm;
1327                kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1328                kc[i].access = mc->hdr.access;
1329
1330                /* we only support FL/FR channel mapping atm */
1331                sm->reg = tplc_chan_get_reg(tplg, mc->channel,
1332                        SNDRV_CHMAP_FL);
1333                sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
1334                        SNDRV_CHMAP_FR);
1335                sm->shift = tplc_chan_get_shift(tplg, mc->channel,
1336                        SNDRV_CHMAP_FL);
1337                sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
1338                        SNDRV_CHMAP_FR);
1339
1340                sm->max = mc->max;
1341                sm->min = mc->min;
1342                sm->invert = mc->invert;
1343                sm->platform_max = mc->platform_max;
1344                sm->dobj.index = tplg->index;
1345                INIT_LIST_HEAD(&sm->dobj.list);
1346
1347                /* map io handlers */
1348                err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg);
1349                if (err) {
1350                        soc_control_err(tplg, &mc->hdr, mc->hdr.name);
1351                        goto err_sm;
1352                }
1353
1354                /* create any TLV data */
1355                soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr);
1356
1357                /* pass control to driver for optional further init */
1358                err = soc_tplg_init_kcontrol(tplg, &kc[i],
1359                        (struct snd_soc_tplg_ctl_hdr *)mc);
1360                if (err < 0) {
1361                        dev_err(tplg->dev, "ASoC: failed to init %s\n",
1362                                mc->hdr.name);
1363                        soc_tplg_free_tlv(tplg, &kc[i]);
1364                        goto err_sm;
1365                }
1366        }
1367        return kc;
1368
1369err_sm:
1370        for (; i >= 0; i--) {
1371                sm = (struct soc_mixer_control *)kc[i].private_value;
1372                kfree(sm);
1373                kfree(kc[i].name);
1374        }
1375        kfree(kc);
1376
1377        return NULL;
1378}
1379
1380static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
1381        struct soc_tplg *tplg, int num_kcontrols)
1382{
1383        struct snd_kcontrol_new *kc;
1384        struct snd_soc_tplg_enum_control *ec;
1385        struct soc_enum *se;
1386        int i, err;
1387
1388        kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1389        if (kc == NULL)
1390                return NULL;
1391
1392        for (i = 0; i < num_kcontrols; i++) {
1393                ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1394                /* validate kcontrol */
1395                if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1396                            SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1397                        goto err_se;
1398
1399                se = kzalloc(sizeof(*se), GFP_KERNEL);
1400                if (se == NULL)
1401                        goto err_se;
1402
1403                tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1404                                ec->priv.size);
1405
1406                dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
1407                        ec->hdr.name);
1408
1409                kc[i].private_value = (long)se;
1410                kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL);
1411                if (kc[i].name == NULL)
1412                        goto err_se;
1413                kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1414                kc[i].access = ec->hdr.access;
1415
1416                /* we only support FL/FR channel mapping atm */
1417                se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1418                se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1419                                                  SNDRV_CHMAP_FL);
1420                se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1421                                                  SNDRV_CHMAP_FR);
1422
1423                se->items = ec->items;
1424                se->mask = ec->mask;
1425                se->dobj.index = tplg->index;
1426
1427                switch (le32_to_cpu(ec->hdr.ops.info)) {
1428                case SND_SOC_TPLG_CTL_ENUM_VALUE:
1429                case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1430                        err = soc_tplg_denum_create_values(se, ec);
1431                        if (err < 0) {
1432                                dev_err(tplg->dev, "ASoC: could not create values for %s\n",
1433                                        ec->hdr.name);
1434                                goto err_se;
1435                        }
1436                        /* fall through */
1437                case SND_SOC_TPLG_CTL_ENUM:
1438                case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1439                case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1440                        err = soc_tplg_denum_create_texts(se, ec);
1441                        if (err < 0) {
1442                                dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
1443                                        ec->hdr.name);
1444                                goto err_se;
1445                        }
1446                        break;
1447                default:
1448                        dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
1449                                ec->hdr.ops.info, ec->hdr.name);
1450                        goto err_se;
1451                }
1452
1453                /* map io handlers */
1454                err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg);
1455                if (err) {
1456                        soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1457                        goto err_se;
1458                }
1459
1460                /* pass control to driver for optional further init */
1461                err = soc_tplg_init_kcontrol(tplg, &kc[i],
1462                        (struct snd_soc_tplg_ctl_hdr *)ec);
1463                if (err < 0) {
1464                        dev_err(tplg->dev, "ASoC: failed to init %s\n",
1465                                ec->hdr.name);
1466                        goto err_se;
1467                }
1468        }
1469
1470        return kc;
1471
1472err_se:
1473        for (; i >= 0; i--) {
1474                /* free values and texts */
1475                se = (struct soc_enum *)kc[i].private_value;
1476
1477                if (se) {
1478                        soc_tplg_denum_remove_values(se);
1479                        soc_tplg_denum_remove_texts(se);
1480                }
1481
1482                kfree(se);
1483                kfree(kc[i].name);
1484        }
1485        kfree(kc);
1486
1487        return NULL;
1488}
1489
1490static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
1491        struct soc_tplg *tplg, int num_kcontrols)
1492{
1493        struct snd_soc_tplg_bytes_control *be;
1494        struct soc_bytes_ext *sbe;
1495        struct snd_kcontrol_new *kc;
1496        int i, err;
1497
1498        kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1499        if (!kc)
1500                return NULL;
1501
1502        for (i = 0; i < num_kcontrols; i++) {
1503                be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
1504
1505                /* validate kcontrol */
1506                if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1507                        SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1508                        goto err_sbe;
1509
1510                sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
1511                if (sbe == NULL)
1512                        goto err_sbe;
1513
1514                tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
1515                              le32_to_cpu(be->priv.size));
1516
1517                dev_dbg(tplg->dev,
1518                        "ASoC: adding bytes kcontrol %s with access 0x%x\n",
1519                        be->hdr.name, be->hdr.access);
1520
1521                kc[i].private_value = (long)sbe;
1522                kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL);
1523                if (kc[i].name == NULL)
1524                        goto err_sbe;
1525                kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1526                kc[i].access = be->hdr.access;
1527
1528                sbe->max = be->max;
1529                INIT_LIST_HEAD(&sbe->dobj.list);
1530
1531                /* map standard io handlers and check for external handlers */
1532                err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg);
1533                if (err) {
1534                        soc_control_err(tplg, &be->hdr, be->hdr.name);
1535                        goto err_sbe;
1536                }
1537
1538                /* pass control to driver for optional further init */
1539                err = soc_tplg_init_kcontrol(tplg, &kc[i],
1540                        (struct snd_soc_tplg_ctl_hdr *)be);
1541                if (err < 0) {
1542                        dev_err(tplg->dev, "ASoC: failed to init %s\n",
1543                                be->hdr.name);
1544                        goto err_sbe;
1545                }
1546        }
1547
1548        return kc;
1549
1550err_sbe:
1551        for (; i >= 0; i--) {
1552                sbe = (struct soc_bytes_ext *)kc[i].private_value;
1553                kfree(sbe);
1554                kfree(kc[i].name);
1555        }
1556        kfree(kc);
1557
1558        return NULL;
1559}
1560
1561static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
1562        struct snd_soc_tplg_dapm_widget *w)
1563{
1564        struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1565        struct snd_soc_dapm_widget template, *widget;
1566        struct snd_soc_tplg_ctl_hdr *control_hdr;
1567        struct snd_soc_card *card = tplg->comp->card;
1568        unsigned int kcontrol_type;
1569        int ret = 0;
1570
1571        if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1572                SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1573                return -EINVAL;
1574        if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1575                SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1576                return -EINVAL;
1577
1578        dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n",
1579                w->name, w->id);
1580
1581        memset(&template, 0, sizeof(template));
1582
1583        /* map user to kernel widget ID */
1584        template.id = get_widget_id(le32_to_cpu(w->id));
1585        if ((int)template.id < 0)
1586                return template.id;
1587
1588        /* strings are allocated here, but used and freed by the widget */
1589        template.name = kstrdup(w->name, GFP_KERNEL);
1590        if (!template.name)
1591                return -ENOMEM;
1592        template.sname = kstrdup(w->sname, GFP_KERNEL);
1593        if (!template.sname) {
1594                ret = -ENOMEM;
1595                goto err;
1596        }
1597        template.reg = le32_to_cpu(w->reg);
1598        template.shift = le32_to_cpu(w->shift);
1599        template.mask = le32_to_cpu(w->mask);
1600        template.subseq = le32_to_cpu(w->subseq);
1601        template.on_val = w->invert ? 0 : 1;
1602        template.off_val = w->invert ? 1 : 0;
1603        template.ignore_suspend = le32_to_cpu(w->ignore_suspend);
1604        template.event_flags = le16_to_cpu(w->event_flags);
1605        template.dobj.index = tplg->index;
1606
1607        tplg->pos +=
1608                (sizeof(struct snd_soc_tplg_dapm_widget) +
1609                 le32_to_cpu(w->priv.size));
1610
1611        if (w->num_kcontrols == 0) {
1612                kcontrol_type = 0;
1613                template.num_kcontrols = 0;
1614                goto widget;
1615        }
1616
1617        control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1618        dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n",
1619                w->name, w->num_kcontrols, control_hdr->type);
1620
1621        switch (le32_to_cpu(control_hdr->ops.info)) {
1622        case SND_SOC_TPLG_CTL_VOLSW:
1623        case SND_SOC_TPLG_CTL_STROBE:
1624        case SND_SOC_TPLG_CTL_VOLSW_SX:
1625        case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1626        case SND_SOC_TPLG_CTL_RANGE:
1627        case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1628                kcontrol_type = SND_SOC_TPLG_TYPE_MIXER;  /* volume mixer */
1629                template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1630                template.kcontrol_news =
1631                        soc_tplg_dapm_widget_dmixer_create(tplg,
1632                        template.num_kcontrols);
1633                if (!template.kcontrol_news) {
1634                        ret = -ENOMEM;
1635                        goto hdr_err;
1636                }
1637                break;
1638        case SND_SOC_TPLG_CTL_ENUM:
1639        case SND_SOC_TPLG_CTL_ENUM_VALUE:
1640        case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1641        case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1642        case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1643                kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */
1644                template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1645                template.kcontrol_news =
1646                        soc_tplg_dapm_widget_denum_create(tplg,
1647                        template.num_kcontrols);
1648                if (!template.kcontrol_news) {
1649                        ret = -ENOMEM;
1650                        goto hdr_err;
1651                }
1652                break;
1653        case SND_SOC_TPLG_CTL_BYTES:
1654                kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */
1655                template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1656                template.kcontrol_news =
1657                        soc_tplg_dapm_widget_dbytes_create(tplg,
1658                                template.num_kcontrols);
1659                if (!template.kcontrol_news) {
1660                        ret = -ENOMEM;
1661                        goto hdr_err;
1662                }
1663                break;
1664        default:
1665                dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n",
1666                        control_hdr->ops.get, control_hdr->ops.put,
1667                        le32_to_cpu(control_hdr->ops.info));
1668                ret = -EINVAL;
1669                goto hdr_err;
1670        }
1671
1672widget:
1673        ret = soc_tplg_widget_load(tplg, &template, w);
1674        if (ret < 0)
1675                goto hdr_err;
1676
1677        /* card dapm mutex is held by the core if we are loading topology
1678         * data during sound card init. */
1679        if (card->instantiated)
1680                widget = snd_soc_dapm_new_control(dapm, &template);
1681        else
1682                widget = snd_soc_dapm_new_control_unlocked(dapm, &template);
1683        if (IS_ERR(widget)) {
1684                ret = PTR_ERR(widget);
1685                goto hdr_err;
1686        }
1687
1688        widget->dobj.type = SND_SOC_DOBJ_WIDGET;
1689        widget->dobj.widget.kcontrol_type = kcontrol_type;
1690        widget->dobj.ops = tplg->ops;
1691        widget->dobj.index = tplg->index;
1692        list_add(&widget->dobj.list, &tplg->comp->dobj_list);
1693
1694        ret = soc_tplg_widget_ready(tplg, widget, w);
1695        if (ret < 0)
1696                goto ready_err;
1697
1698        kfree(template.sname);
1699        kfree(template.name);
1700
1701        return 0;
1702
1703ready_err:
1704        snd_soc_tplg_widget_remove(widget);
1705        snd_soc_dapm_free_widget(widget);
1706hdr_err:
1707        kfree(template.sname);
1708err:
1709        kfree(template.name);
1710        return ret;
1711}
1712
1713static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg,
1714        struct snd_soc_tplg_hdr *hdr)
1715{
1716        struct snd_soc_tplg_dapm_widget *widget;
1717        int ret, count, i;
1718
1719        count = le32_to_cpu(hdr->count);
1720
1721        if (tplg->pass != SOC_TPLG_PASS_WIDGET)
1722                return 0;
1723
1724        dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
1725
1726        for (i = 0; i < count; i++) {
1727                widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
1728                if (le32_to_cpu(widget->size) != sizeof(*widget)) {
1729                        dev_err(tplg->dev, "ASoC: invalid widget size\n");
1730                        return -EINVAL;
1731                }
1732
1733                ret = soc_tplg_dapm_widget_create(tplg, widget);
1734                if (ret < 0) {
1735                        dev_err(tplg->dev, "ASoC: failed to load widget %s\n",
1736                                widget->name);
1737                        return ret;
1738                }
1739        }
1740
1741        return 0;
1742}
1743
1744static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
1745{
1746        struct snd_soc_card *card = tplg->comp->card;
1747        int ret;
1748
1749        /* Card might not have been registered at this point.
1750         * If so, just return success.
1751        */
1752        if (!card || !card->instantiated) {
1753                dev_warn(tplg->dev, "ASoC: Parent card not yet available,"
1754                        " widget card binding deferred\n");
1755                return 0;
1756        }
1757
1758        ret = snd_soc_dapm_new_widgets(card);
1759        if (ret < 0)
1760                dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n",
1761                        ret);
1762
1763        return 0;
1764}
1765
1766static void set_stream_info(struct snd_soc_pcm_stream *stream,
1767        struct snd_soc_tplg_stream_caps *caps)
1768{
1769        stream->stream_name = kstrdup(caps->name, GFP_KERNEL);
1770        stream->channels_min = le32_to_cpu(caps->channels_min);
1771        stream->channels_max = le32_to_cpu(caps->channels_max);
1772        stream->rates = le32_to_cpu(caps->rates);
1773        stream->rate_min = le32_to_cpu(caps->rate_min);
1774        stream->rate_max = le32_to_cpu(caps->rate_max);
1775        stream->formats = le64_to_cpu(caps->formats);
1776        stream->sig_bits = le32_to_cpu(caps->sig_bits);
1777}
1778
1779static void set_dai_flags(struct snd_soc_dai_driver *dai_drv,
1780                          unsigned int flag_mask, unsigned int flags)
1781{
1782        if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES)
1783                dai_drv->symmetric_rates =
1784                        flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1785
1786        if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS)
1787                dai_drv->symmetric_channels =
1788                        flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ?
1789                        1 : 0;
1790
1791        if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS)
1792                dai_drv->symmetric_samplebits =
1793                        flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1794                        1 : 0;
1795}
1796
1797static int soc_tplg_dai_create(struct soc_tplg *tplg,
1798        struct snd_soc_tplg_pcm *pcm)
1799{
1800        struct snd_soc_dai_driver *dai_drv;
1801        struct snd_soc_pcm_stream *stream;
1802        struct snd_soc_tplg_stream_caps *caps;
1803        int ret;
1804
1805        dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
1806        if (dai_drv == NULL)
1807                return -ENOMEM;
1808
1809        if (strlen(pcm->dai_name))
1810                dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL);
1811        dai_drv->id = le32_to_cpu(pcm->dai_id);
1812
1813        if (pcm->playback) {
1814                stream = &dai_drv->playback;
1815                caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1816                set_stream_info(stream, caps);
1817        }
1818
1819        if (pcm->capture) {
1820                stream = &dai_drv->capture;
1821                caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1822                set_stream_info(stream, caps);
1823        }
1824
1825        if (pcm->compress)
1826                dai_drv->compress_new = snd_soc_new_compress;
1827
1828        /* pass control to component driver for optional further init */
1829        ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL);
1830        if (ret < 0) {
1831                dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
1832                kfree(dai_drv->playback.stream_name);
1833                kfree(dai_drv->capture.stream_name);
1834                kfree(dai_drv->name);
1835                kfree(dai_drv);
1836                return ret;
1837        }
1838
1839        dai_drv->dobj.index = tplg->index;
1840        dai_drv->dobj.ops = tplg->ops;
1841        dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
1842        list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
1843
1844        /* register the DAI to the component */
1845        return snd_soc_register_dai(tplg->comp, dai_drv);
1846}
1847
1848static void set_link_flags(struct snd_soc_dai_link *link,
1849                unsigned int flag_mask, unsigned int flags)
1850{
1851        if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
1852                link->symmetric_rates =
1853                        flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1854
1855        if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
1856                link->symmetric_channels =
1857                        flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ?
1858                        1 : 0;
1859
1860        if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
1861                link->symmetric_samplebits =
1862                        flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1863                        1 : 0;
1864
1865        if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP)
1866                link->ignore_suspend =
1867                flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ?
1868                1 : 0;
1869}
1870
1871/* create the FE DAI link */
1872static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
1873        struct snd_soc_tplg_pcm *pcm)
1874{
1875        struct snd_soc_dai_link *link;
1876        struct snd_soc_dai_link_component *dlc;
1877        int ret;
1878
1879        /* link + cpu + codec + platform */
1880        link = kzalloc(sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL);
1881        if (link == NULL)
1882                return -ENOMEM;
1883
1884        dlc = (struct snd_soc_dai_link_component *)(link + 1);
1885
1886        link->cpus      = &dlc[0];
1887        link->codecs    = &dlc[1];
1888        link->platforms = &dlc[2];
1889
1890        link->num_cpus   = 1;
1891        link->num_codecs = 1;
1892        link->num_platforms = 1;
1893
1894        if (strlen(pcm->pcm_name)) {
1895                link->name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1896                link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1897        }
1898        link->id = le32_to_cpu(pcm->pcm_id);
1899
1900        if (strlen(pcm->dai_name))
1901                link->cpus->dai_name = kstrdup(pcm->dai_name, GFP_KERNEL);
1902
1903        link->codecs->name = "snd-soc-dummy";
1904        link->codecs->dai_name = "snd-soc-dummy-dai";
1905
1906        link->platforms->name = "snd-soc-dummy";
1907
1908        /* enable DPCM */
1909        link->dynamic = 1;
1910        link->dpcm_playback = le32_to_cpu(pcm->playback);
1911        link->dpcm_capture = le32_to_cpu(pcm->capture);
1912        if (pcm->flag_mask)
1913                set_link_flags(link,
1914                               le32_to_cpu(pcm->flag_mask),
1915                               le32_to_cpu(pcm->flags));
1916
1917        /* pass control to component driver for optional further init */
1918        ret = soc_tplg_dai_link_load(tplg, link, NULL);
1919        if (ret < 0) {
1920                dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n");
1921                kfree(link->name);
1922                kfree(link->stream_name);
1923                kfree(link->cpus->dai_name);
1924                kfree(link);
1925                return ret;
1926        }
1927
1928        link->dobj.index = tplg->index;
1929        link->dobj.ops = tplg->ops;
1930        link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
1931        list_add(&link->dobj.list, &tplg->comp->dobj_list);
1932
1933        snd_soc_add_dai_link(tplg->comp->card, link);
1934        return 0;
1935}
1936
1937/* create a FE DAI and DAI link from the PCM object */
1938static int soc_tplg_pcm_create(struct soc_tplg *tplg,
1939        struct snd_soc_tplg_pcm *pcm)
1940{
1941        int ret;
1942
1943        ret = soc_tplg_dai_create(tplg, pcm);
1944        if (ret < 0)
1945                return ret;
1946
1947        return  soc_tplg_fe_link_create(tplg, pcm);
1948}
1949
1950/* copy stream caps from the old version 4 of source */
1951static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest,
1952                                struct snd_soc_tplg_stream_caps_v4 *src)
1953{
1954        dest->size = cpu_to_le32(sizeof(*dest));
1955        memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1956        dest->formats = src->formats;
1957        dest->rates = src->rates;
1958        dest->rate_min = src->rate_min;
1959        dest->rate_max = src->rate_max;
1960        dest->channels_min = src->channels_min;
1961        dest->channels_max = src->channels_max;
1962        dest->periods_min = src->periods_min;
1963        dest->periods_max = src->periods_max;
1964        dest->period_size_min = src->period_size_min;
1965        dest->period_size_max = src->period_size_max;
1966        dest->buffer_size_min = src->buffer_size_min;
1967        dest->buffer_size_max = src->buffer_size_max;
1968}
1969
1970/**
1971 * pcm_new_ver - Create the new version of PCM from the old version.
1972 * @tplg: topology context
1973 * @src: older version of pcm as a source
1974 * @pcm: latest version of pcm created from the source
1975 *
1976 * Support from vesion 4. User should free the returned pcm manually.
1977 */
1978static int pcm_new_ver(struct soc_tplg *tplg,
1979                       struct snd_soc_tplg_pcm *src,
1980                       struct snd_soc_tplg_pcm **pcm)
1981{
1982        struct snd_soc_tplg_pcm *dest;
1983        struct snd_soc_tplg_pcm_v4 *src_v4;
1984        int i;
1985
1986        *pcm = NULL;
1987
1988        if (le32_to_cpu(src->size) != sizeof(*src_v4)) {
1989                dev_err(tplg->dev, "ASoC: invalid PCM size\n");
1990                return -EINVAL;
1991        }
1992
1993        dev_warn(tplg->dev, "ASoC: old version of PCM\n");
1994        src_v4 = (struct snd_soc_tplg_pcm_v4 *)src;
1995        dest = kzalloc(sizeof(*dest), GFP_KERNEL);
1996        if (!dest)
1997                return -ENOMEM;
1998
1999        dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2000        memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2001        memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2002        dest->pcm_id = src_v4->pcm_id;
2003        dest->dai_id = src_v4->dai_id;
2004        dest->playback = src_v4->playback;
2005        dest->capture = src_v4->capture;
2006        dest->compress = src_v4->compress;
2007        dest->num_streams = src_v4->num_streams;
2008        for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2009                memcpy(&dest->stream[i], &src_v4->stream[i],
2010                       sizeof(struct snd_soc_tplg_stream));
2011
2012        for (i = 0; i < 2; i++)
2013                stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]);
2014
2015        *pcm = dest;
2016        return 0;
2017}
2018
2019static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
2020        struct snd_soc_tplg_hdr *hdr)
2021{
2022        struct snd_soc_tplg_pcm *pcm, *_pcm;
2023        int count;
2024        int size;
2025        int i;
2026        bool abi_match;
2027
2028        count = le32_to_cpu(hdr->count);
2029
2030        if (tplg->pass != SOC_TPLG_PASS_PCM_DAI)
2031                return 0;
2032
2033        /* check the element size and count */
2034        pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
2035        size = le32_to_cpu(pcm->size);
2036        if (size > sizeof(struct snd_soc_tplg_pcm)
2037                || size < sizeof(struct snd_soc_tplg_pcm_v4)) {
2038                dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
2039                        size);
2040                return -EINVAL;
2041        }
2042
2043        if (soc_tplg_check_elem_count(tplg,
2044                                      size, count,
2045                                      le32_to_cpu(hdr->payload_size),
2046                                      "PCM DAI")) {
2047                dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n",
2048                        count);
2049                return -EINVAL;
2050        }
2051
2052        for (i = 0; i < count; i++) {
2053                pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
2054                size = le32_to_cpu(pcm->size);
2055
2056                /* check ABI version by size, create a new version of pcm
2057                 * if abi not match.
2058                 */
2059                if (size == sizeof(*pcm)) {
2060                        abi_match = true;
2061                        _pcm = pcm;
2062                } else {
2063                        abi_match = false;
2064                        pcm_new_ver(tplg, pcm, &_pcm);
2065                }
2066
2067                /* create the FE DAIs and DAI links */
2068                soc_tplg_pcm_create(tplg, _pcm);
2069
2070                /* offset by version-specific struct size and
2071                 * real priv data size
2072                 */
2073                tplg->pos += size + le32_to_cpu(_pcm->priv.size);
2074
2075                if (!abi_match)
2076                        kfree(_pcm); /* free the duplicated one */
2077        }
2078
2079        dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
2080
2081        return 0;
2082}
2083
2084/**
2085 * set_link_hw_format - Set the HW audio format of the physical DAI link.
2086 * @link: &snd_soc_dai_link which should be updated
2087 * @cfg: physical link configs.
2088 *
2089 * Topology context contains a list of supported HW formats (configs) and
2090 * a default format ID for the physical link. This function will use this
2091 * default ID to choose the HW format to set the link's DAI format for init.
2092 */
2093static void set_link_hw_format(struct snd_soc_dai_link *link,
2094                        struct snd_soc_tplg_link_config *cfg)
2095{
2096        struct snd_soc_tplg_hw_config *hw_config;
2097        unsigned char bclk_master, fsync_master;
2098        unsigned char invert_bclk, invert_fsync;
2099        int i;
2100
2101        for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) {
2102                hw_config = &cfg->hw_config[i];
2103                if (hw_config->id != cfg->default_hw_config_id)
2104                        continue;
2105
2106                link->dai_fmt = le32_to_cpu(hw_config->fmt) &
2107                        SND_SOC_DAIFMT_FORMAT_MASK;
2108
2109                /* clock gating */
2110                switch (hw_config->clock_gated) {
2111                case SND_SOC_TPLG_DAI_CLK_GATE_GATED:
2112                        link->dai_fmt |= SND_SOC_DAIFMT_GATED;
2113                        break;
2114
2115                case SND_SOC_TPLG_DAI_CLK_GATE_CONT:
2116                        link->dai_fmt |= SND_SOC_DAIFMT_CONT;
2117                        break;
2118
2119                default:
2120                        /* ignore the value */
2121                        break;
2122                }
2123
2124                /* clock signal polarity */
2125                invert_bclk = hw_config->invert_bclk;
2126                invert_fsync = hw_config->invert_fsync;
2127                if (!invert_bclk && !invert_fsync)
2128                        link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
2129                else if (!invert_bclk && invert_fsync)
2130                        link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
2131                else if (invert_bclk && !invert_fsync)
2132                        link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
2133                else
2134                        link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
2135
2136                /* clock masters */
2137                bclk_master = (hw_config->bclk_master ==
2138                               SND_SOC_TPLG_BCLK_CM);
2139                fsync_master = (hw_config->fsync_master ==
2140                                SND_SOC_TPLG_FSYNC_CM);
2141                if (bclk_master && fsync_master)
2142                        link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
2143                else if (!bclk_master && fsync_master)
2144                        link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
2145                else if (bclk_master && !fsync_master)
2146                        link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
2147                else
2148                        link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
2149        }
2150}
2151
2152/**
2153 * link_new_ver - Create a new physical link config from the old
2154 * version of source.
2155 * @tplg: topology context
2156 * @src: old version of phyical link config as a source
2157 * @link: latest version of physical link config created from the source
2158 *
2159 * Support from vesion 4. User need free the returned link config manually.
2160 */
2161static int link_new_ver(struct soc_tplg *tplg,
2162                        struct snd_soc_tplg_link_config *src,
2163                        struct snd_soc_tplg_link_config **link)
2164{
2165        struct snd_soc_tplg_link_config *dest;
2166        struct snd_soc_tplg_link_config_v4 *src_v4;
2167        int i;
2168
2169        *link = NULL;
2170
2171        if (le32_to_cpu(src->size) !=
2172            sizeof(struct snd_soc_tplg_link_config_v4)) {
2173                dev_err(tplg->dev, "ASoC: invalid physical link config size\n");
2174                return -EINVAL;
2175        }
2176
2177        dev_warn(tplg->dev, "ASoC: old version of physical link config\n");
2178
2179        src_v4 = (struct snd_soc_tplg_link_config_v4 *)src;
2180        dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2181        if (!dest)
2182                return -ENOMEM;
2183
2184        dest->size = cpu_to_le32(sizeof(*dest));
2185        dest->id = src_v4->id;
2186        dest->num_streams = src_v4->num_streams;
2187        for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2188                memcpy(&dest->stream[i], &src_v4->stream[i],
2189                       sizeof(struct snd_soc_tplg_stream));
2190
2191        *link = dest;
2192        return 0;
2193}
2194
2195/* Find and configure an existing physical DAI link */
2196static int soc_tplg_link_config(struct soc_tplg *tplg,
2197        struct snd_soc_tplg_link_config *cfg)
2198{
2199        struct snd_soc_dai_link *link;
2200        const char *name, *stream_name;
2201        size_t len;
2202        int ret;
2203
2204        len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2205        if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2206                return -EINVAL;
2207        else if (len)
2208                name = cfg->name;
2209        else
2210                name = NULL;
2211
2212        len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2213        if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2214                return -EINVAL;
2215        else if (len)
2216                stream_name = cfg->stream_name;
2217        else
2218                stream_name = NULL;
2219
2220        link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id),
2221                                     name, stream_name);
2222        if (!link) {
2223                dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n",
2224                        name, cfg->id);
2225                return -EINVAL;
2226        }
2227
2228        /* hw format */
2229        if (cfg->num_hw_configs)
2230                set_link_hw_format(link, cfg);
2231
2232        /* flags */
2233        if (cfg->flag_mask)
2234                set_link_flags(link,
2235                               le32_to_cpu(cfg->flag_mask),
2236                               le32_to_cpu(cfg->flags));
2237
2238        /* pass control to component driver for optional further init */
2239        ret = soc_tplg_dai_link_load(tplg, link, cfg);
2240        if (ret < 0) {
2241                dev_err(tplg->dev, "ASoC: physical link loading failed\n");
2242                return ret;
2243        }
2244
2245        /* for unloading it in snd_soc_tplg_component_remove */
2246        link->dobj.index = tplg->index;
2247        link->dobj.ops = tplg->ops;
2248        link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK;
2249        list_add(&link->dobj.list, &tplg->comp->dobj_list);
2250
2251        return 0;
2252}
2253
2254
2255/* Load physical link config elements from the topology context */
2256static int soc_tplg_link_elems_load(struct soc_tplg *tplg,
2257        struct snd_soc_tplg_hdr *hdr)
2258{
2259        struct snd_soc_tplg_link_config *link, *_link;
2260        int count;
2261        int size;
2262        int i, ret;
2263        bool abi_match;
2264
2265        count = le32_to_cpu(hdr->count);
2266
2267        if (tplg->pass != SOC_TPLG_PASS_LINK) {
2268                tplg->pos += le32_to_cpu(hdr->size) +
2269                        le32_to_cpu(hdr->payload_size);
2270                return 0;
2271        };
2272
2273        /* check the element size and count */
2274        link = (struct snd_soc_tplg_link_config *)tplg->pos;
2275        size = le32_to_cpu(link->size);
2276        if (size > sizeof(struct snd_soc_tplg_link_config)
2277                || size < sizeof(struct snd_soc_tplg_link_config_v4)) {
2278                dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
2279                        size);
2280                return -EINVAL;
2281        }
2282
2283        if (soc_tplg_check_elem_count(tplg,
2284                                      size, count,
2285                                      le32_to_cpu(hdr->payload_size),
2286                                      "physical link config")) {
2287                dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n",
2288                        count);
2289                return -EINVAL;
2290        }
2291
2292        /* config physical DAI links */
2293        for (i = 0; i < count; i++) {
2294                link = (struct snd_soc_tplg_link_config *)tplg->pos;
2295                size = le32_to_cpu(link->size);
2296                if (size == sizeof(*link)) {
2297                        abi_match = true;
2298                        _link = link;
2299                } else {
2300                        abi_match = false;
2301                        ret = link_new_ver(tplg, link, &_link);
2302                        if (ret < 0)
2303                                return ret;
2304                }
2305
2306                ret = soc_tplg_link_config(tplg, _link);
2307                if (ret < 0)
2308                        return ret;
2309
2310                /* offset by version-specific struct size and
2311                 * real priv data size
2312                 */
2313                tplg->pos += size + le32_to_cpu(_link->priv.size);
2314
2315                if (!abi_match)
2316                        kfree(_link); /* free the duplicated one */
2317        }
2318
2319        return 0;
2320}
2321
2322/**
2323 * soc_tplg_dai_config - Find and configure an existing physical DAI.
2324 * @tplg: topology context
2325 * @d: physical DAI configs.
2326 *
2327 * The physical dai should already be registered by the platform driver.
2328 * The platform driver should specify the DAI name and ID for matching.
2329 */
2330static int soc_tplg_dai_config(struct soc_tplg *tplg,
2331                               struct snd_soc_tplg_dai *d)
2332{
2333        struct snd_soc_dai_link_component dai_component;
2334        struct snd_soc_dai *dai;
2335        struct snd_soc_dai_driver *dai_drv;
2336        struct snd_soc_pcm_stream *stream;
2337        struct snd_soc_tplg_stream_caps *caps;
2338        int ret;
2339
2340        memset(&dai_component, 0, sizeof(dai_component));
2341
2342        dai_component.dai_name = d->dai_name;
2343        dai = snd_soc_find_dai(&dai_component);
2344        if (!dai) {
2345                dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n",
2346                        d->dai_name);
2347                return -EINVAL;
2348        }
2349
2350        if (le32_to_cpu(d->dai_id) != dai->id) {
2351                dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n",
2352                        d->dai_name);
2353                return -EINVAL;
2354        }
2355
2356        dai_drv = dai->driver;
2357        if (!dai_drv)
2358                return -EINVAL;
2359
2360        if (d->playback) {
2361                stream = &dai_drv->playback;
2362                caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
2363                set_stream_info(stream, caps);
2364        }
2365
2366        if (d->capture) {
2367                stream = &dai_drv->capture;
2368                caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
2369                set_stream_info(stream, caps);
2370        }
2371
2372        if (d->flag_mask)
2373                set_dai_flags(dai_drv,
2374                              le32_to_cpu(d->flag_mask),
2375                              le32_to_cpu(d->flags));
2376
2377        /* pass control to component driver for optional further init */
2378        ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai);
2379        if (ret < 0) {
2380                dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
2381                return ret;
2382        }
2383
2384        return 0;
2385}
2386
2387/* load physical DAI elements */
2388static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
2389                                   struct snd_soc_tplg_hdr *hdr)
2390{
2391        struct snd_soc_tplg_dai *dai;
2392        int count;
2393        int i;
2394
2395        count = le32_to_cpu(hdr->count);
2396
2397        if (tplg->pass != SOC_TPLG_PASS_BE_DAI)
2398                return 0;
2399
2400        /* config the existing BE DAIs */
2401        for (i = 0; i < count; i++) {
2402                dai = (struct snd_soc_tplg_dai *)tplg->pos;
2403                if (le32_to_cpu(dai->size) != sizeof(*dai)) {
2404                        dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
2405                        return -EINVAL;
2406                }
2407
2408                soc_tplg_dai_config(tplg, dai);
2409                tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size));
2410        }
2411
2412        dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count);
2413        return 0;
2414}
2415
2416/**
2417 * manifest_new_ver - Create a new version of manifest from the old version
2418 * of source.
2419 * @tplg: topology context
2420 * @src: old version of manifest as a source
2421 * @manifest: latest version of manifest created from the source
2422 *
2423 * Support from vesion 4. Users need free the returned manifest manually.
2424 */
2425static int manifest_new_ver(struct soc_tplg *tplg,
2426                            struct snd_soc_tplg_manifest *src,
2427                            struct snd_soc_tplg_manifest **manifest)
2428{
2429        struct snd_soc_tplg_manifest *dest;
2430        struct snd_soc_tplg_manifest_v4 *src_v4;
2431        int size;
2432
2433        *manifest = NULL;
2434
2435        size = le32_to_cpu(src->size);
2436        if (size != sizeof(*src_v4)) {
2437                dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n",
2438                         size);
2439                if (size)
2440                        return -EINVAL;
2441                src->size = cpu_to_le32(sizeof(*src_v4));
2442        }
2443
2444        dev_warn(tplg->dev, "ASoC: old version of manifest\n");
2445
2446        src_v4 = (struct snd_soc_tplg_manifest_v4 *)src;
2447        dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size),
2448                       GFP_KERNEL);
2449        if (!dest)
2450                return -ENOMEM;
2451
2452        dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2453        dest->control_elems = src_v4->control_elems;
2454        dest->widget_elems = src_v4->widget_elems;
2455        dest->graph_elems = src_v4->graph_elems;
2456        dest->pcm_elems = src_v4->pcm_elems;
2457        dest->dai_link_elems = src_v4->dai_link_elems;
2458        dest->priv.size = src_v4->priv.size;
2459        if (dest->priv.size)
2460                memcpy(dest->priv.data, src_v4->priv.data,
2461                       le32_to_cpu(src_v4->priv.size));
2462
2463        *manifest = dest;
2464        return 0;
2465}
2466
2467static int soc_tplg_manifest_load(struct soc_tplg *tplg,
2468                                  struct snd_soc_tplg_hdr *hdr)
2469{
2470        struct snd_soc_tplg_manifest *manifest, *_manifest;
2471        bool abi_match;
2472        int err;
2473
2474        if (tplg->pass != SOC_TPLG_PASS_MANIFEST)
2475                return 0;
2476
2477        manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
2478
2479        /* check ABI version by size, create a new manifest if abi not match */
2480        if (le32_to_cpu(manifest->size) == sizeof(*manifest)) {
2481                abi_match = true;
2482                _manifest = manifest;
2483        } else {
2484                abi_match = false;
2485                err = manifest_new_ver(tplg, manifest, &_manifest);
2486                if (err < 0)
2487                        return err;
2488        }
2489
2490        /* pass control to component driver for optional further init */
2491        if (tplg->comp && tplg->ops && tplg->ops->manifest)
2492                return tplg->ops->manifest(tplg->comp, tplg->index, _manifest);
2493
2494        if (!abi_match) /* free the duplicated one */
2495                kfree(_manifest);
2496
2497        return 0;
2498}
2499
2500/* validate header magic, size and type */
2501static int soc_valid_header(struct soc_tplg *tplg,
2502        struct snd_soc_tplg_hdr *hdr)
2503{
2504        if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size)
2505                return 0;
2506
2507        if (le32_to_cpu(hdr->size) != sizeof(*hdr)) {
2508                dev_err(tplg->dev,
2509                        "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
2510                        le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
2511                        tplg->fw->size);
2512                return -EINVAL;
2513        }
2514
2515        /* big endian firmware objects not supported atm */
2516        if (hdr->magic == SOC_TPLG_MAGIC_BIG_ENDIAN) {
2517                dev_err(tplg->dev,
2518                        "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n",
2519                        tplg->pass, hdr->magic,
2520                        soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2521                return -EINVAL;
2522        }
2523
2524        if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) {
2525                dev_err(tplg->dev,
2526                        "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n",
2527                        tplg->pass, hdr->magic,
2528                        soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2529                return -EINVAL;
2530        }
2531
2532        /* Support ABI from version 4 */
2533        if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION ||
2534            le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) {
2535                dev_err(tplg->dev,
2536                        "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
2537                        tplg->pass, hdr->abi,
2538                        SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg),
2539                        tplg->fw->size);
2540                return -EINVAL;
2541        }
2542
2543        if (hdr->payload_size == 0) {
2544                dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n",
2545                        soc_tplg_get_hdr_offset(tplg));
2546                return -EINVAL;
2547        }
2548
2549        if (tplg->pass == le32_to_cpu(hdr->type))
2550                dev_dbg(tplg->dev,
2551                        "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n",
2552                        hdr->payload_size, hdr->type, hdr->version,
2553                        hdr->vendor_type, tplg->pass);
2554
2555        return 1;
2556}
2557
2558/* check header type and call appropriate handler */
2559static int soc_tplg_load_header(struct soc_tplg *tplg,
2560        struct snd_soc_tplg_hdr *hdr)
2561{
2562        tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
2563
2564        /* check for matching ID */
2565        if (le32_to_cpu(hdr->index) != tplg->req_index &&
2566                tplg->req_index != SND_SOC_TPLG_INDEX_ALL)
2567                return 0;
2568
2569        tplg->index = le32_to_cpu(hdr->index);
2570
2571        switch (le32_to_cpu(hdr->type)) {
2572        case SND_SOC_TPLG_TYPE_MIXER:
2573        case SND_SOC_TPLG_TYPE_ENUM:
2574        case SND_SOC_TPLG_TYPE_BYTES:
2575                return soc_tplg_kcontrol_elems_load(tplg, hdr);
2576        case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
2577                return soc_tplg_dapm_graph_elems_load(tplg, hdr);
2578        case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
2579                return soc_tplg_dapm_widget_elems_load(tplg, hdr);
2580        case SND_SOC_TPLG_TYPE_PCM:
2581                return soc_tplg_pcm_elems_load(tplg, hdr);
2582        case SND_SOC_TPLG_TYPE_DAI:
2583                return soc_tplg_dai_elems_load(tplg, hdr);
2584        case SND_SOC_TPLG_TYPE_DAI_LINK:
2585        case SND_SOC_TPLG_TYPE_BACKEND_LINK:
2586                /* physical link configurations */
2587                return soc_tplg_link_elems_load(tplg, hdr);
2588        case SND_SOC_TPLG_TYPE_MANIFEST:
2589                return soc_tplg_manifest_load(tplg, hdr);
2590        default:
2591                /* bespoke vendor data object */
2592                return soc_tplg_vendor_load(tplg, hdr);
2593        }
2594
2595        return 0;
2596}
2597
2598/* process the topology file headers */
2599static int soc_tplg_process_headers(struct soc_tplg *tplg)
2600{
2601        struct snd_soc_tplg_hdr *hdr;
2602        int ret;
2603
2604        tplg->pass = SOC_TPLG_PASS_START;
2605
2606        /* process the header types from start to end */
2607        while (tplg->pass <= SOC_TPLG_PASS_END) {
2608
2609                tplg->hdr_pos = tplg->fw->data;
2610                hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2611
2612                while (!soc_tplg_is_eof(tplg)) {
2613
2614                        /* make sure header is valid before loading */
2615                        ret = soc_valid_header(tplg, hdr);
2616                        if (ret < 0)
2617                                return ret;
2618                        else if (ret == 0)
2619                                break;
2620
2621                        /* load the header object */
2622                        ret = soc_tplg_load_header(tplg, hdr);
2623                        if (ret < 0)
2624                                return ret;
2625
2626                        /* goto next header */
2627                        tplg->hdr_pos += le32_to_cpu(hdr->payload_size) +
2628                                sizeof(struct snd_soc_tplg_hdr);
2629                        hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2630                }
2631
2632                /* next data type pass */
2633                tplg->pass++;
2634        }
2635
2636        /* signal DAPM we are complete */
2637        ret = soc_tplg_dapm_complete(tplg);
2638        if (ret < 0)
2639                dev_err(tplg->dev,
2640                        "ASoC: failed to initialise DAPM from Firmware\n");
2641
2642        return ret;
2643}
2644
2645static int soc_tplg_load(struct soc_tplg *tplg)
2646{
2647        int ret;
2648
2649        ret = soc_tplg_process_headers(tplg);
2650        if (ret == 0)
2651                soc_tplg_complete(tplg);
2652
2653        return ret;
2654}
2655
2656/* load audio component topology from "firmware" file */
2657int snd_soc_tplg_component_load(struct snd_soc_component *comp,
2658        struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id)
2659{
2660        struct soc_tplg tplg;
2661        int ret;
2662
2663        /* setup parsing context */
2664        memset(&tplg, 0, sizeof(tplg));
2665        tplg.fw = fw;
2666        tplg.dev = comp->dev;
2667        tplg.comp = comp;
2668        tplg.ops = ops;
2669        tplg.req_index = id;
2670        tplg.io_ops = ops->io_ops;
2671        tplg.io_ops_count = ops->io_ops_count;
2672        tplg.bytes_ext_ops = ops->bytes_ext_ops;
2673        tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
2674
2675        ret = soc_tplg_load(&tplg);
2676        /* free the created components if fail to load topology */
2677        if (ret)
2678                snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL);
2679
2680        return ret;
2681}
2682EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
2683
2684/* remove this dynamic widget */
2685void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w)
2686{
2687        /* make sure we are a widget */
2688        if (w->dobj.type != SND_SOC_DOBJ_WIDGET)
2689                return;
2690
2691        remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET);
2692}
2693EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove);
2694
2695/* remove all dynamic widgets from this DAPM context */
2696void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm,
2697        u32 index)
2698{
2699        struct snd_soc_dapm_widget *w, *next_w;
2700
2701        list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) {
2702
2703                /* make sure we are a widget with correct context */
2704                if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm)
2705                        continue;
2706
2707                /* match ID */
2708                if (w->dobj.index != index &&
2709                        w->dobj.index != SND_SOC_TPLG_INDEX_ALL)
2710                        continue;
2711                /* check and free and dynamic widget kcontrols */
2712                snd_soc_tplg_widget_remove(w);
2713                snd_soc_dapm_free_widget(w);
2714        }
2715        snd_soc_dapm_reset_cache(dapm);
2716}
2717EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all);
2718
2719/* remove dynamic controls from the component driver */
2720int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
2721{
2722        struct snd_soc_dobj *dobj, *next_dobj;
2723        int pass = SOC_TPLG_PASS_END;
2724
2725        /* process the header types from end to start */
2726        while (pass >= SOC_TPLG_PASS_START) {
2727
2728                /* remove mixer controls */
2729                list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
2730                        list) {
2731
2732                        /* match index */
2733                        if (dobj->index != index &&
2734                                index != SND_SOC_TPLG_INDEX_ALL)
2735                                continue;
2736
2737                        switch (dobj->type) {
2738                        case SND_SOC_DOBJ_MIXER:
2739                                remove_mixer(comp, dobj, pass);
2740                                break;
2741                        case SND_SOC_DOBJ_ENUM:
2742                                remove_enum(comp, dobj, pass);
2743                                break;
2744                        case SND_SOC_DOBJ_BYTES:
2745                                remove_bytes(comp, dobj, pass);
2746                                break;
2747                        case SND_SOC_DOBJ_GRAPH:
2748                                remove_route(comp, dobj, pass);
2749                                break;
2750                        case SND_SOC_DOBJ_WIDGET:
2751                                remove_widget(comp, dobj, pass);
2752                                break;
2753                        case SND_SOC_DOBJ_PCM:
2754                                remove_dai(comp, dobj, pass);
2755                                break;
2756                        case SND_SOC_DOBJ_DAI_LINK:
2757                                remove_link(comp, dobj, pass);
2758                                break;
2759                        case SND_SOC_DOBJ_BACKEND_LINK:
2760                                /*
2761                                 * call link_unload ops if extra
2762                                 * deinitialization is needed.
2763                                 */
2764                                remove_backend_link(comp, dobj, pass);
2765                                break;
2766                        default:
2767                                dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
2768                                        dobj->type);
2769                                break;
2770                        }
2771                }
2772                pass--;
2773        }
2774
2775        /* let caller know if FW can be freed when no objects are left */
2776        return !list_empty(&comp->dobj_list);
2777}
2778EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove);
2779