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