sound/soc/soc-topology.c

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This source file includes following definitions.
soc_tplg_check_elem_count
soc_tplg_is_eof
soc_tplg_get_hdr_offset
soc_tplg_get_offset
tplc_chan_get_reg
tplc_chan_get_shift
get_widget_id
soc_bind_err
soc_control_err
soc_tplg_vendor_load_
soc_tplg_vendor_load
soc_tplg_widget_load
soc_tplg_widget_ready
soc_tplg_dai_load
soc_tplg_dai_link_load
soc_tplg_complete
soc_tplg_add_dcontrol
soc_tplg_add_kcontrol
remove_mixer
remove_enum
remove_bytes
remove_route
remove_widget
remove_dai
remove_link
remove_backend_link
soc_tplg_kcontrol_bind_io
snd_soc_tplg_widget_bind_event
soc_tplg_init_kcontrol
soc_tplg_create_tlv_db_scale
soc_tplg_create_tlv
soc_tplg_free_tlv
soc_tplg_dbytes_create
soc_tplg_dmixer_create
soc_tplg_denum_create_texts
soc_tplg_denum_remove_texts
soc_tplg_denum_create_values
soc_tplg_denum_remove_values
soc_tplg_denum_create
soc_tplg_kcontrol_elems_load
soc_tplg_add_route
soc_tplg_dapm_graph_elems_load
soc_tplg_dapm_widget_dmixer_create
soc_tplg_dapm_widget_denum_create
soc_tplg_dapm_widget_dbytes_create
soc_tplg_dapm_widget_create
soc_tplg_dapm_widget_elems_load
soc_tplg_dapm_complete
set_stream_info
set_dai_flags
soc_tplg_dai_create
set_link_flags
soc_tplg_fe_link_create
soc_tplg_pcm_create
stream_caps_new_ver
pcm_new_ver
soc_tplg_pcm_elems_load
set_link_hw_format
link_new_ver
soc_tplg_link_config
soc_tplg_link_elems_load
soc_tplg_dai_config
soc_tplg_dai_elems_load
manifest_new_ver
soc_tplg_manifest_load
soc_valid_header
soc_tplg_load_header
soc_tplg_process_headers
soc_tplg_load
snd_soc_tplg_component_load
snd_soc_tplg_widget_remove
snd_soc_tplg_widget_remove_all
snd_soc_tplg_component_remove
   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 */
  55 struct soc_tplg {
  56         const struct firmware *fw;
  57 
  58         /* runtime FW parsing */
  59         const u8 *pos;          /* read postion */
  60         const u8 *hdr_pos;      /* header position */
  61         unsigned int pass;      /* pass number */
  62 
  63         /* component caller */
  64         struct device *dev;
  65         struct snd_soc_component *comp;
  66         u32 index;      /* current block index */
  67         u32 req_index;  /* required index, only loaded/free matching blocks */
  68 
  69         /* vendor specific kcontrol operations */
  70         const struct snd_soc_tplg_kcontrol_ops *io_ops;
  71         int io_ops_count;
  72 
  73         /* vendor specific bytes ext handlers, for TLV bytes controls */
  74         const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
  75         int bytes_ext_ops_count;
  76 
  77         /* optional fw loading callbacks to component drivers */
  78         struct snd_soc_tplg_ops *ops;
  79 };
  80 
  81 static int soc_tplg_process_headers(struct soc_tplg *tplg);
  82 static void soc_tplg_complete(struct soc_tplg *tplg);
  83 static void soc_tplg_denum_remove_texts(struct soc_enum *se);
  84 static void soc_tplg_denum_remove_values(struct soc_enum *se);
  85 
  86 /* check we dont overflow the data for this control chunk */
  87 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size,
  88         unsigned int count, size_t bytes, const char *elem_type)
  89 {
  90         const u8 *end = tplg->pos + elem_size * count;
  91 
  92         if (end > tplg->fw->data + tplg->fw->size) {
  93                 dev_err(tplg->dev, "ASoC: %s overflow end of data\n",
  94                         elem_type);
  95                 return -EINVAL;
  96         }
  97 
  98         /* check there is enough room in chunk for control.
  99            extra bytes at the end of control are for vendor data here  */
 100         if (elem_size * count > bytes) {
 101                 dev_err(tplg->dev,
 102                         "ASoC: %s count %d of size %zu is bigger than chunk %zu\n",
 103                         elem_type, count, elem_size, bytes);
 104                 return -EINVAL;
 105         }
 106 
 107         return 0;
 108 }
 109 
 110 static inline int soc_tplg_is_eof(struct soc_tplg *tplg)
 111 {
 112         const u8 *end = tplg->hdr_pos;
 113 
 114         if (end >= tplg->fw->data + tplg->fw->size)
 115                 return 1;
 116         return 0;
 117 }
 118 
 119 static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg)
 120 {
 121         return (unsigned long)(tplg->hdr_pos - tplg->fw->data);
 122 }
 123 
 124 static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg)
 125 {
 126         return (unsigned long)(tplg->pos - tplg->fw->data);
 127 }
 128 
 129 /* mapping of Kcontrol types and associated operations. */
 130 static const struct snd_soc_tplg_kcontrol_ops io_ops[] = {
 131         {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw,
 132                 snd_soc_put_volsw, snd_soc_info_volsw},
 133         {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx,
 134                 snd_soc_put_volsw_sx, NULL},
 135         {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double,
 136                 snd_soc_put_enum_double, snd_soc_info_enum_double},
 137         {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double,
 138                 snd_soc_put_enum_double, NULL},
 139         {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get,
 140                 snd_soc_bytes_put, snd_soc_bytes_info},
 141         {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range,
 142                 snd_soc_put_volsw_range, snd_soc_info_volsw_range},
 143         {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx,
 144                 snd_soc_put_xr_sx, snd_soc_info_xr_sx},
 145         {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe,
 146                 snd_soc_put_strobe, NULL},
 147         {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw,
 148                 snd_soc_dapm_put_volsw, snd_soc_info_volsw},
 149         {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double,
 150                 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double},
 151         {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double,
 152                 snd_soc_dapm_put_enum_double, NULL},
 153         {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double,
 154                 snd_soc_dapm_put_enum_double, NULL},
 155         {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch,
 156                 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch},
 157 };
 158 
 159 struct soc_tplg_map {
 160         int uid;
 161         int kid;
 162 };
 163 
 164 /* mapping of widget types from UAPI IDs to kernel IDs */
 165 static const struct soc_tplg_map dapm_map[] = {
 166         {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input},
 167         {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output},
 168         {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux},
 169         {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer},
 170         {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga},
 171         {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv},
 172         {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc},
 173         {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac},
 174         {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch},
 175         {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre},
 176         {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post},
 177         {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in},
 178         {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out},
 179         {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in},
 180         {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out},
 181         {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link},
 182         {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer},
 183         {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler},
 184         {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect},
 185         {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen},
 186         {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src},
 187         {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc},
 188         {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder},
 189         {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder},
 190 };
 191 
 192 static int tplc_chan_get_reg(struct soc_tplg *tplg,
 193         struct snd_soc_tplg_channel *chan, int map)
 194 {
 195         int i;
 196 
 197         for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
 198                 if (le32_to_cpu(chan[i].id) == map)
 199                         return le32_to_cpu(chan[i].reg);
 200         }
 201 
 202         return -EINVAL;
 203 }
 204 
 205 static int tplc_chan_get_shift(struct soc_tplg *tplg,
 206         struct snd_soc_tplg_channel *chan, int map)
 207 {
 208         int i;
 209 
 210         for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
 211                 if (le32_to_cpu(chan[i].id) == map)
 212                         return le32_to_cpu(chan[i].shift);
 213         }
 214 
 215         return -EINVAL;
 216 }
 217 
 218 static int get_widget_id(int tplg_type)
 219 {
 220         int i;
 221 
 222         for (i = 0; i < ARRAY_SIZE(dapm_map); i++) {
 223                 if (tplg_type == dapm_map[i].uid)
 224                         return dapm_map[i].kid;
 225         }
 226 
 227         return -EINVAL;
 228 }
 229 
 230 static inline void soc_bind_err(struct soc_tplg *tplg,
 231         struct snd_soc_tplg_ctl_hdr *hdr, int index)
 232 {
 233         dev_err(tplg->dev,
 234                 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n",
 235                 hdr->ops.get, hdr->ops.put, hdr->ops.info, index,
 236                 soc_tplg_get_offset(tplg));
 237 }
 238 
 239 static inline void soc_control_err(struct soc_tplg *tplg,
 240         struct snd_soc_tplg_ctl_hdr *hdr, const char *name)
 241 {
 242         dev_err(tplg->dev,
 243                 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n",
 244                 name, hdr->ops.get, hdr->ops.put, hdr->ops.info,
 245                 soc_tplg_get_offset(tplg));
 246 }
 247 
 248 /* pass vendor data to component driver for processing */
 249 static int soc_tplg_vendor_load_(struct soc_tplg *tplg,
 250         struct snd_soc_tplg_hdr *hdr)
 251 {
 252         int ret = 0;
 253 
 254         if (tplg->comp && tplg->ops && tplg->ops->vendor_load)
 255                 ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr);
 256         else {
 257                 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n",
 258                         hdr->vendor_type);
 259                 return -EINVAL;
 260         }
 261 
 262         if (ret < 0)
 263                 dev_err(tplg->dev,
 264                         "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n",
 265                         soc_tplg_get_hdr_offset(tplg),
 266                         soc_tplg_get_hdr_offset(tplg),
 267                         hdr->type, hdr->vendor_type);
 268         return ret;
 269 }
 270 
 271 /* pass vendor data to component driver for processing */
 272 static int soc_tplg_vendor_load(struct soc_tplg *tplg,
 273         struct snd_soc_tplg_hdr *hdr)
 274 {
 275         if (tplg->pass != SOC_TPLG_PASS_VENDOR)
 276                 return 0;
 277 
 278         return soc_tplg_vendor_load_(tplg, hdr);
 279 }
 280 
 281 /* optionally pass new dynamic widget to component driver. This is mainly for
 282  * external widgets where we can assign private data/ops */
 283 static int soc_tplg_widget_load(struct soc_tplg *tplg,
 284         struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
 285 {
 286         if (tplg->comp && tplg->ops && tplg->ops->widget_load)
 287                 return tplg->ops->widget_load(tplg->comp, tplg->index, w,
 288                         tplg_w);
 289 
 290         return 0;
 291 }
 292 
 293 /* optionally pass new dynamic widget to component driver. This is mainly for
 294  * external widgets where we can assign private data/ops */
 295 static int soc_tplg_widget_ready(struct soc_tplg *tplg,
 296         struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
 297 {
 298         if (tplg->comp && tplg->ops && tplg->ops->widget_ready)
 299                 return tplg->ops->widget_ready(tplg->comp, tplg->index, w,
 300                         tplg_w);
 301 
 302         return 0;
 303 }
 304 
 305 /* pass DAI configurations to component driver for extra initialization */
 306 static int soc_tplg_dai_load(struct soc_tplg *tplg,
 307         struct snd_soc_dai_driver *dai_drv,
 308         struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai)
 309 {
 310         if (tplg->comp && tplg->ops && tplg->ops->dai_load)
 311                 return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv,
 312                         pcm, dai);
 313 
 314         return 0;
 315 }
 316 
 317 /* pass link configurations to component driver for extra initialization */
 318 static int soc_tplg_dai_link_load(struct soc_tplg *tplg,
 319         struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg)
 320 {
 321         if (tplg->comp && tplg->ops && tplg->ops->link_load)
 322                 return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg);
 323 
 324         return 0;
 325 }
 326 
 327 /* tell the component driver that all firmware has been loaded in this request */
 328 static void soc_tplg_complete(struct soc_tplg *tplg)
 329 {
 330         if (tplg->comp && tplg->ops && tplg->ops->complete)
 331                 tplg->ops->complete(tplg->comp);
 332 }
 333 
 334 /* add a dynamic kcontrol */
 335 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev,
 336         const struct snd_kcontrol_new *control_new, const char *prefix,
 337         void *data, struct snd_kcontrol **kcontrol)
 338 {
 339         int err;
 340 
 341         *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix);
 342         if (*kcontrol == NULL) {
 343                 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n",
 344                 control_new->name);
 345                 return -ENOMEM;
 346         }
 347 
 348         err = snd_ctl_add(card, *kcontrol);
 349         if (err < 0) {
 350                 dev_err(dev, "ASoC: Failed to add %s: %d\n",
 351                         control_new->name, err);
 352                 return err;
 353         }
 354 
 355         return 0;
 356 }
 357 
 358 /* add a dynamic kcontrol for component driver */
 359 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg,
 360         struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol)
 361 {
 362         struct snd_soc_component *comp = tplg->comp;
 363 
 364         return soc_tplg_add_dcontrol(comp->card->snd_card,
 365                                 comp->dev, k, comp->name_prefix, comp, kcontrol);
 366 }
 367 
 368 /* remove a mixer kcontrol */
 369 static void remove_mixer(struct snd_soc_component *comp,
 370         struct snd_soc_dobj *dobj, int pass)
 371 {
 372         struct snd_card *card = comp->card->snd_card;
 373         struct soc_mixer_control *sm =
 374                 container_of(dobj, struct soc_mixer_control, dobj);
 375         const unsigned int *p = NULL;
 376 
 377         if (pass != SOC_TPLG_PASS_MIXER)
 378                 return;
 379 
 380         if (dobj->ops && dobj->ops->control_unload)
 381                 dobj->ops->control_unload(comp, dobj);
 382 
 383         if (dobj->control.kcontrol->tlv.p)
 384                 p = dobj->control.kcontrol->tlv.p;
 385         snd_ctl_remove(card, dobj->control.kcontrol);
 386         list_del(&dobj->list);
 387         kfree(sm);
 388         kfree(p);
 389 }
 390 
 391 /* remove an enum kcontrol */
 392 static void remove_enum(struct snd_soc_component *comp,
 393         struct snd_soc_dobj *dobj, int pass)
 394 {
 395         struct snd_card *card = comp->card->snd_card;
 396         struct soc_enum *se = container_of(dobj, struct soc_enum, dobj);
 397 
 398         if (pass != SOC_TPLG_PASS_MIXER)
 399                 return;
 400 
 401         if (dobj->ops && dobj->ops->control_unload)
 402                 dobj->ops->control_unload(comp, dobj);
 403 
 404         snd_ctl_remove(card, dobj->control.kcontrol);
 405         list_del(&dobj->list);
 406 
 407         soc_tplg_denum_remove_values(se);
 408         soc_tplg_denum_remove_texts(se);
 409         kfree(se);
 410 }
 411 
 412 /* remove a byte kcontrol */
 413 static void remove_bytes(struct snd_soc_component *comp,
 414         struct snd_soc_dobj *dobj, int pass)
 415 {
 416         struct snd_card *card = comp->card->snd_card;
 417         struct soc_bytes_ext *sb =
 418                 container_of(dobj, struct soc_bytes_ext, dobj);
 419 
 420         if (pass != SOC_TPLG_PASS_MIXER)
 421                 return;
 422 
 423         if (dobj->ops && dobj->ops->control_unload)
 424                 dobj->ops->control_unload(comp, dobj);
 425 
 426         snd_ctl_remove(card, dobj->control.kcontrol);
 427         list_del(&dobj->list);
 428         kfree(sb);
 429 }
 430 
 431 /* remove a route */
 432 static void remove_route(struct snd_soc_component *comp,
 433                          struct snd_soc_dobj *dobj, int pass)
 434 {
 435         struct snd_soc_dapm_route *route =
 436                 container_of(dobj, struct snd_soc_dapm_route, dobj);
 437 
 438         if (pass != SOC_TPLG_PASS_GRAPH)
 439                 return;
 440 
 441         if (dobj->ops && dobj->ops->dapm_route_unload)
 442                 dobj->ops->dapm_route_unload(comp, dobj);
 443 
 444         list_del(&dobj->list);
 445         kfree(route);
 446 }
 447 
 448 /* remove a widget and it's kcontrols - routes must be removed first */
 449 static void remove_widget(struct snd_soc_component *comp,
 450         struct snd_soc_dobj *dobj, int pass)
 451 {
 452         struct snd_card *card = comp->card->snd_card;
 453         struct snd_soc_dapm_widget *w =
 454                 container_of(dobj, struct snd_soc_dapm_widget, dobj);
 455         int i;
 456 
 457         if (pass != SOC_TPLG_PASS_WIDGET)
 458                 return;
 459 
 460         if (dobj->ops && dobj->ops->widget_unload)
 461                 dobj->ops->widget_unload(comp, dobj);
 462 
 463         if (!w->kcontrols)
 464                 goto free_news;
 465 
 466         /*
 467          * Dynamic Widgets either have 1..N enum kcontrols or mixers.
 468          * The enum may either have an array of values or strings.
 469          */
 470         if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) {
 471                 /* enumerated widget mixer */
 472                 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
 473                         struct snd_kcontrol *kcontrol = w->kcontrols[i];
 474                         struct soc_enum *se =
 475                                 (struct soc_enum *)kcontrol->private_value;
 476 
 477                         snd_ctl_remove(card, kcontrol);
 478 
 479                         /* free enum kcontrol's dvalues and dtexts */
 480                         soc_tplg_denum_remove_values(se);
 481                         soc_tplg_denum_remove_texts(se);
 482 
 483                         kfree(se);
 484                         kfree(w->kcontrol_news[i].name);
 485                 }
 486         } else {
 487                 /* volume mixer or bytes controls */
 488                 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
 489                         struct snd_kcontrol *kcontrol = w->kcontrols[i];
 490 
 491                         if (dobj->widget.kcontrol_type
 492                             == SND_SOC_TPLG_TYPE_MIXER)
 493                                 kfree(kcontrol->tlv.p);
 494 
 495                         /* Private value is used as struct soc_mixer_control
 496                          * for volume mixers or soc_bytes_ext for bytes
 497                          * controls.
 498                          */
 499                         kfree((void *)kcontrol->private_value);
 500                         snd_ctl_remove(card, kcontrol);
 501                         kfree(w->kcontrol_news[i].name);
 502                 }
 503         }
 504 
 505 free_news:
 506         kfree(w->kcontrol_news);
 507 
 508         list_del(&dobj->list);
 509 
 510         /* widget w is freed by soc-dapm.c */
 511 }
 512 
 513 /* remove DAI configurations */
 514 static void remove_dai(struct snd_soc_component *comp,
 515         struct snd_soc_dobj *dobj, int pass)
 516 {
 517         struct snd_soc_dai_driver *dai_drv =
 518                 container_of(dobj, struct snd_soc_dai_driver, dobj);
 519         struct snd_soc_dai *dai;
 520 
 521         if (pass != SOC_TPLG_PASS_PCM_DAI)
 522                 return;
 523 
 524         if (dobj->ops && dobj->ops->dai_unload)
 525                 dobj->ops->dai_unload(comp, dobj);
 526 
 527         for_each_component_dais(comp, dai)
 528                 if (dai->driver == dai_drv)
 529                         dai->driver = NULL;
 530 
 531         kfree(dai_drv->playback.stream_name);
 532         kfree(dai_drv->capture.stream_name);
 533         kfree(dai_drv->name);
 534         list_del(&dobj->list);
 535         kfree(dai_drv);
 536 }
 537 
 538 /* remove link configurations */
 539 static void remove_link(struct snd_soc_component *comp,
 540         struct snd_soc_dobj *dobj, int pass)
 541 {
 542         struct snd_soc_dai_link *link =
 543                 container_of(dobj, struct snd_soc_dai_link, dobj);
 544 
 545         if (pass != SOC_TPLG_PASS_PCM_DAI)
 546                 return;
 547 
 548         if (dobj->ops && dobj->ops->link_unload)
 549                 dobj->ops->link_unload(comp, dobj);
 550 
 551         list_del(&dobj->list);
 552         snd_soc_remove_dai_link(comp->card, link);
 553 
 554         kfree(link->name);
 555         kfree(link->stream_name);
 556         kfree(link->cpus->dai_name);
 557         kfree(link);
 558 }
 559 
 560 /* unload dai link */
 561 static void remove_backend_link(struct snd_soc_component *comp,
 562         struct snd_soc_dobj *dobj, int pass)
 563 {
 564         if (pass != SOC_TPLG_PASS_LINK)
 565                 return;
 566 
 567         if (dobj->ops && dobj->ops->link_unload)
 568                 dobj->ops->link_unload(comp, dobj);
 569 
 570         /*
 571          * We don't free the link here as what remove_link() do since BE
 572          * links are not allocated by topology.
 573          * We however need to reset the dobj type to its initial values
 574          */
 575         dobj->type = SND_SOC_DOBJ_NONE;
 576         list_del(&dobj->list);
 577 }
 578 
 579 /* bind a kcontrol to it's IO handlers */
 580 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 581         struct snd_kcontrol_new *k,
 582         const struct soc_tplg *tplg)
 583 {
 584         const struct snd_soc_tplg_kcontrol_ops *ops;
 585         const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
 586         int num_ops, i;
 587 
 588         if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES
 589                 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
 590                 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
 591                 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
 592                 struct soc_bytes_ext *sbe;
 593                 struct snd_soc_tplg_bytes_control *be;
 594 
 595                 sbe = (struct soc_bytes_ext *)k->private_value;
 596                 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
 597 
 598                 /* TLV bytes controls need standard kcontrol info handler,
 599                  * TLV callback and extended put/get handlers.
 600                  */
 601                 k->info = snd_soc_bytes_info_ext;
 602                 k->tlv.c = snd_soc_bytes_tlv_callback;
 603 
 604                 ext_ops = tplg->bytes_ext_ops;
 605                 num_ops = tplg->bytes_ext_ops_count;
 606                 for (i = 0; i < num_ops; i++) {
 607                         if (!sbe->put &&
 608                             ext_ops[i].id == le32_to_cpu(be->ext_ops.put))
 609                                 sbe->put = ext_ops[i].put;
 610                         if (!sbe->get &&
 611                             ext_ops[i].id == le32_to_cpu(be->ext_ops.get))
 612                                 sbe->get = ext_ops[i].get;
 613                 }
 614 
 615                 if (sbe->put && sbe->get)
 616                         return 0;
 617                 else
 618                         return -EINVAL;
 619         }
 620 
 621         /* try and map vendor specific kcontrol handlers first */
 622         ops = tplg->io_ops;
 623         num_ops = tplg->io_ops_count;
 624         for (i = 0; i < num_ops; i++) {
 625 
 626                 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
 627                         k->put = ops[i].put;
 628                 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
 629                         k->get = ops[i].get;
 630                 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
 631                         k->info = ops[i].info;
 632         }
 633 
 634         /* vendor specific handlers found ? */
 635         if (k->put && k->get && k->info)
 636                 return 0;
 637 
 638         /* none found so try standard kcontrol handlers */
 639         ops = io_ops;
 640         num_ops = ARRAY_SIZE(io_ops);
 641         for (i = 0; i < num_ops; i++) {
 642 
 643                 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
 644                         k->put = ops[i].put;
 645                 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
 646                         k->get = ops[i].get;
 647                 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
 648                         k->info = ops[i].info;
 649         }
 650 
 651         /* standard handlers found ? */
 652         if (k->put && k->get && k->info)
 653                 return 0;
 654 
 655         /* nothing to bind */
 656         return -EINVAL;
 657 }
 658 
 659 /* bind a widgets to it's evnt handlers */
 660 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
 661                 const struct snd_soc_tplg_widget_events *events,
 662                 int num_events, u16 event_type)
 663 {
 664         int i;
 665 
 666         w->event = NULL;
 667 
 668         for (i = 0; i < num_events; i++) {
 669                 if (event_type == events[i].type) {
 670 
 671                         /* found - so assign event */
 672                         w->event = events[i].event_handler;
 673                         return 0;
 674                 }
 675         }
 676 
 677         /* not found */
 678         return -EINVAL;
 679 }
 680 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event);
 681 
 682 /* optionally pass new dynamic kcontrol to component driver. */
 683 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg,
 684         struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr)
 685 {
 686         if (tplg->comp && tplg->ops && tplg->ops->control_load)
 687                 return tplg->ops->control_load(tplg->comp, tplg->index, k,
 688                         hdr);
 689 
 690         return 0;
 691 }
 692 
 693 
 694 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg,
 695         struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale)
 696 {
 697         unsigned int item_len = 2 * sizeof(unsigned int);
 698         unsigned int *p;
 699 
 700         p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
 701         if (!p)
 702                 return -ENOMEM;
 703 
 704         p[0] = SNDRV_CTL_TLVT_DB_SCALE;
 705         p[1] = item_len;
 706         p[2] = le32_to_cpu(scale->min);
 707         p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK)
 708                 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0);
 709 
 710         kc->tlv.p = (void *)p;
 711         return 0;
 712 }
 713 
 714 static int soc_tplg_create_tlv(struct soc_tplg *tplg,
 715         struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc)
 716 {
 717         struct snd_soc_tplg_ctl_tlv *tplg_tlv;
 718         u32 access = le32_to_cpu(tc->access);
 719 
 720         if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
 721                 return 0;
 722 
 723         if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
 724                 tplg_tlv = &tc->tlv;
 725                 switch (le32_to_cpu(tplg_tlv->type)) {
 726                 case SNDRV_CTL_TLVT_DB_SCALE:
 727                         return soc_tplg_create_tlv_db_scale(tplg, kc,
 728                                         &tplg_tlv->scale);
 729 
 730                 /* TODO: add support for other TLV types */
 731                 default:
 732                         dev_dbg(tplg->dev, "Unsupported TLV type %d\n",
 733                                         tplg_tlv->type);
 734                         return -EINVAL;
 735                 }
 736         }
 737 
 738         return 0;
 739 }
 740 
 741 static inline void soc_tplg_free_tlv(struct soc_tplg *tplg,
 742         struct snd_kcontrol_new *kc)
 743 {
 744         kfree(kc->tlv.p);
 745 }
 746 
 747 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
 748         size_t size)
 749 {
 750         struct snd_soc_tplg_bytes_control *be;
 751         struct soc_bytes_ext *sbe;
 752         struct snd_kcontrol_new kc;
 753         int i, err;
 754 
 755         if (soc_tplg_check_elem_count(tplg,
 756                 sizeof(struct snd_soc_tplg_bytes_control), count,
 757                         size, "mixer bytes")) {
 758                 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n",
 759                         count);
 760                 return -EINVAL;
 761         }
 762 
 763         for (i = 0; i < count; i++) {
 764                 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
 765 
 766                 /* validate kcontrol */
 767                 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
 768                         SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 769                         return -EINVAL;
 770 
 771                 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
 772                 if (sbe == NULL)
 773                         return -ENOMEM;
 774 
 775                 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
 776                               le32_to_cpu(be->priv.size));
 777 
 778                 dev_dbg(tplg->dev,
 779                         "ASoC: adding bytes kcontrol %s with access 0x%x\n",
 780                         be->hdr.name, be->hdr.access);
 781 
 782                 memset(&kc, 0, sizeof(kc));
 783                 kc.name = be->hdr.name;
 784                 kc.private_value = (long)sbe;
 785                 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 786                 kc.access = le32_to_cpu(be->hdr.access);
 787 
 788                 sbe->max = le32_to_cpu(be->max);
 789                 sbe->dobj.type = SND_SOC_DOBJ_BYTES;
 790                 sbe->dobj.ops = tplg->ops;
 791                 INIT_LIST_HEAD(&sbe->dobj.list);
 792 
 793                 /* map io handlers */
 794                 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
 795                 if (err) {
 796                         soc_control_err(tplg, &be->hdr, be->hdr.name);
 797                         kfree(sbe);
 798                         continue;
 799                 }
 800 
 801                 /* pass control to driver for optional further init */
 802                 err = soc_tplg_init_kcontrol(tplg, &kc,
 803                         (struct snd_soc_tplg_ctl_hdr *)be);
 804                 if (err < 0) {
 805                         dev_err(tplg->dev, "ASoC: failed to init %s\n",
 806                                 be->hdr.name);
 807                         kfree(sbe);
 808                         continue;
 809                 }
 810 
 811                 /* register control here */
 812                 err = soc_tplg_add_kcontrol(tplg, &kc,
 813                         &sbe->dobj.control.kcontrol);
 814                 if (err < 0) {
 815                         dev_err(tplg->dev, "ASoC: failed to add %s\n",
 816                                 be->hdr.name);
 817                         kfree(sbe);
 818                         continue;
 819                 }
 820 
 821                 list_add(&sbe->dobj.list, &tplg->comp->dobj_list);
 822         }
 823         return 0;
 824 
 825 }
 826 
 827 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
 828         size_t size)
 829 {
 830         struct snd_soc_tplg_mixer_control *mc;
 831         struct soc_mixer_control *sm;
 832         struct snd_kcontrol_new kc;
 833         int i, err;
 834 
 835         if (soc_tplg_check_elem_count(tplg,
 836                 sizeof(struct snd_soc_tplg_mixer_control),
 837                 count, size, "mixers")) {
 838 
 839                 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n",
 840                         count);
 841                 return -EINVAL;
 842         }
 843 
 844         for (i = 0; i < count; i++) {
 845                 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
 846 
 847                 /* validate kcontrol */
 848                 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
 849                         SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 850                         return -EINVAL;
 851 
 852                 sm = kzalloc(sizeof(*sm), GFP_KERNEL);
 853                 if (sm == NULL)
 854                         return -ENOMEM;
 855                 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
 856                               le32_to_cpu(mc->priv.size));
 857 
 858                 dev_dbg(tplg->dev,
 859                         "ASoC: adding mixer kcontrol %s with access 0x%x\n",
 860                         mc->hdr.name, mc->hdr.access);
 861 
 862                 memset(&kc, 0, sizeof(kc));
 863                 kc.name = mc->hdr.name;
 864                 kc.private_value = (long)sm;
 865                 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 866                 kc.access = le32_to_cpu(mc->hdr.access);
 867 
 868                 /* we only support FL/FR channel mapping atm */
 869                 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
 870                         SNDRV_CHMAP_FL);
 871                 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
 872                         SNDRV_CHMAP_FR);
 873                 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
 874                         SNDRV_CHMAP_FL);
 875                 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
 876                         SNDRV_CHMAP_FR);
 877 
 878                 sm->max = le32_to_cpu(mc->max);
 879                 sm->min = le32_to_cpu(mc->min);
 880                 sm->invert = le32_to_cpu(mc->invert);
 881                 sm->platform_max = le32_to_cpu(mc->platform_max);
 882                 sm->dobj.index = tplg->index;
 883                 sm->dobj.ops = tplg->ops;
 884                 sm->dobj.type = SND_SOC_DOBJ_MIXER;
 885                 INIT_LIST_HEAD(&sm->dobj.list);
 886 
 887                 /* map io handlers */
 888                 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
 889                 if (err) {
 890                         soc_control_err(tplg, &mc->hdr, mc->hdr.name);
 891                         kfree(sm);
 892                         continue;
 893                 }
 894 
 895                 /* create any TLV data */
 896                 err = soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
 897                 if (err < 0) {
 898                         dev_err(tplg->dev, "ASoC: failed to create TLV %s\n",
 899                                 mc->hdr.name);
 900                         kfree(sm);
 901                         continue;
 902                 }
 903 
 904                 /* pass control to driver for optional further init */
 905                 err = soc_tplg_init_kcontrol(tplg, &kc,
 906                         (struct snd_soc_tplg_ctl_hdr *) mc);
 907                 if (err < 0) {
 908                         dev_err(tplg->dev, "ASoC: failed to init %s\n",
 909                                 mc->hdr.name);
 910                         soc_tplg_free_tlv(tplg, &kc);
 911                         kfree(sm);
 912                         continue;
 913                 }
 914 
 915                 /* register control here */
 916                 err = soc_tplg_add_kcontrol(tplg, &kc,
 917                         &sm->dobj.control.kcontrol);
 918                 if (err < 0) {
 919                         dev_err(tplg->dev, "ASoC: failed to add %s\n",
 920                                 mc->hdr.name);
 921                         soc_tplg_free_tlv(tplg, &kc);
 922                         kfree(sm);
 923                         continue;
 924                 }
 925 
 926                 list_add(&sm->dobj.list, &tplg->comp->dobj_list);
 927         }
 928 
 929         return 0;
 930 }
 931 
 932 static int soc_tplg_denum_create_texts(struct soc_enum *se,
 933         struct snd_soc_tplg_enum_control *ec)
 934 {
 935         int i, ret;
 936 
 937         se->dobj.control.dtexts =
 938                 kcalloc(le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL);
 939         if (se->dobj.control.dtexts == NULL)
 940                 return -ENOMEM;
 941 
 942         for (i = 0; i < le32_to_cpu(ec->items); i++) {
 943 
 944                 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
 945                         SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
 946                         ret = -EINVAL;
 947                         goto err;
 948                 }
 949 
 950                 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL);
 951                 if (!se->dobj.control.dtexts[i]) {
 952                         ret = -ENOMEM;
 953                         goto err;
 954                 }
 955         }
 956 
 957         se->items = le32_to_cpu(ec->items);
 958         se->texts = (const char * const *)se->dobj.control.dtexts;
 959         return 0;
 960 
 961 err:
 962         se->items = i;
 963         soc_tplg_denum_remove_texts(se);
 964         return ret;
 965 }
 966 
 967 static inline void soc_tplg_denum_remove_texts(struct soc_enum *se)
 968 {
 969         int i = se->items;
 970 
 971         for (--i; i >= 0; i--)
 972                 kfree(se->dobj.control.dtexts[i]);
 973         kfree(se->dobj.control.dtexts);
 974 }
 975 
 976 static int soc_tplg_denum_create_values(struct soc_enum *se,
 977         struct snd_soc_tplg_enum_control *ec)
 978 {
 979         int i;
 980 
 981         if (le32_to_cpu(ec->items) > sizeof(*ec->values))
 982                 return -EINVAL;
 983 
 984         se->dobj.control.dvalues = kzalloc(le32_to_cpu(ec->items) *
 985                                            sizeof(u32),
 986                                            GFP_KERNEL);
 987         if (!se->dobj.control.dvalues)
 988                 return -ENOMEM;
 989 
 990         /* convert from little-endian */
 991         for (i = 0; i < le32_to_cpu(ec->items); i++) {
 992                 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]);
 993         }
 994 
 995         return 0;
 996 }
 997 
 998 static inline void soc_tplg_denum_remove_values(struct soc_enum *se)
 999 {
1000         kfree(se->dobj.control.dvalues);
1001 }
1002 
1003 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
1004         size_t size)
1005 {
1006         struct snd_soc_tplg_enum_control *ec;
1007         struct soc_enum *se;
1008         struct snd_kcontrol_new kc;
1009         int i, ret, err;
1010 
1011         if (soc_tplg_check_elem_count(tplg,
1012                 sizeof(struct snd_soc_tplg_enum_control),
1013                 count, size, "enums")) {
1014 
1015                 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n",
1016                         count);
1017                 return -EINVAL;
1018         }
1019 
1020         for (i = 0; i < count; i++) {
1021                 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1022 
1023                 /* validate kcontrol */
1024                 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1025                         SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1026                         return -EINVAL;
1027 
1028                 se = kzalloc((sizeof(*se)), GFP_KERNEL);
1029                 if (se == NULL)
1030                         return -ENOMEM;
1031 
1032                 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1033                               le32_to_cpu(ec->priv.size));
1034 
1035                 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n",
1036                         ec->hdr.name, ec->items);
1037 
1038                 memset(&kc, 0, sizeof(kc));
1039                 kc.name = ec->hdr.name;
1040                 kc.private_value = (long)se;
1041                 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1042                 kc.access = le32_to_cpu(ec->hdr.access);
1043 
1044                 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1045                 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1046                         SNDRV_CHMAP_FL);
1047                 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1048                         SNDRV_CHMAP_FL);
1049 
1050                 se->mask = le32_to_cpu(ec->mask);
1051                 se->dobj.index = tplg->index;
1052                 se->dobj.type = SND_SOC_DOBJ_ENUM;
1053                 se->dobj.ops = tplg->ops;
1054                 INIT_LIST_HEAD(&se->dobj.list);
1055 
1056                 switch (le32_to_cpu(ec->hdr.ops.info)) {
1057                 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1058                 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1059                         err = soc_tplg_denum_create_values(se, ec);
1060                         if (err < 0) {
1061                                 dev_err(tplg->dev,
1062                                         "ASoC: could not create values for %s\n",
1063                                         ec->hdr.name);
1064                                 kfree(se);
1065                                 continue;
1066                         }
1067                         /* fall through */
1068                 case SND_SOC_TPLG_CTL_ENUM:
1069                 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1070                 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1071                         err = soc_tplg_denum_create_texts(se, ec);
1072                         if (err < 0) {
1073                                 dev_err(tplg->dev,
1074                                         "ASoC: could not create texts for %s\n",
1075                                         ec->hdr.name);
1076                                 kfree(se);
1077                                 continue;
1078                         }
1079                         break;
1080                 default:
1081                         dev_err(tplg->dev,
1082                                 "ASoC: invalid enum control type %d for %s\n",
1083                                 ec->hdr.ops.info, ec->hdr.name);
1084                         kfree(se);
1085                         continue;
1086                 }
1087 
1088                 /* map io handlers */
1089                 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
1090                 if (err) {
1091                         soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1092                         kfree(se);
1093                         continue;
1094                 }
1095 
1096                 /* pass control to driver for optional further init */
1097                 err = soc_tplg_init_kcontrol(tplg, &kc,
1098                         (struct snd_soc_tplg_ctl_hdr *) ec);
1099                 if (err < 0) {
1100                         dev_err(tplg->dev, "ASoC: failed to init %s\n",
1101                                 ec->hdr.name);
1102                         kfree(se);
1103                         continue;
1104                 }
1105 
1106                 /* register control here */
1107                 ret = soc_tplg_add_kcontrol(tplg,
1108                         &kc, &se->dobj.control.kcontrol);
1109                 if (ret < 0) {
1110                         dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n",
1111                                 ec->hdr.name);
1112                         kfree(se);
1113                         continue;
1114                 }
1115 
1116                 list_add(&se->dobj.list, &tplg->comp->dobj_list);
1117         }
1118 
1119         return 0;
1120 }
1121 
1122 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
1123         struct snd_soc_tplg_hdr *hdr)
1124 {
1125         struct snd_soc_tplg_ctl_hdr *control_hdr;
1126         int ret;
1127         int i;
1128 
1129         if (tplg->pass != SOC_TPLG_PASS_MIXER) {
1130                 tplg->pos += le32_to_cpu(hdr->size) +
1131                         le32_to_cpu(hdr->payload_size);
1132                 return 0;
1133         }
1134 
1135         dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
1136                 soc_tplg_get_offset(tplg));
1137 
1138         for (i = 0; i < le32_to_cpu(hdr->count); i++) {
1139 
1140                 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1141 
1142                 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) {
1143                         dev_err(tplg->dev, "ASoC: invalid control size\n");
1144                         return -EINVAL;
1145                 }
1146 
1147                 switch (le32_to_cpu(control_hdr->ops.info)) {
1148                 case SND_SOC_TPLG_CTL_VOLSW:
1149                 case SND_SOC_TPLG_CTL_STROBE:
1150                 case SND_SOC_TPLG_CTL_VOLSW_SX:
1151                 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1152                 case SND_SOC_TPLG_CTL_RANGE:
1153                 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1154                 case SND_SOC_TPLG_DAPM_CTL_PIN:
1155                         ret = soc_tplg_dmixer_create(tplg, 1,
1156                                         le32_to_cpu(hdr->payload_size));
1157                         break;
1158                 case SND_SOC_TPLG_CTL_ENUM:
1159                 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1160                 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1161                 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1162                 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1163                         ret = soc_tplg_denum_create(tplg, 1,
1164                                         le32_to_cpu(hdr->payload_size));
1165                         break;
1166                 case SND_SOC_TPLG_CTL_BYTES:
1167                         ret = soc_tplg_dbytes_create(tplg, 1,
1168                                         le32_to_cpu(hdr->payload_size));
1169                         break;
1170                 default:
1171                         soc_bind_err(tplg, control_hdr, i);
1172                         return -EINVAL;
1173                 }
1174                 if (ret < 0) {
1175                         dev_err(tplg->dev, "ASoC: invalid control\n");
1176                         return ret;
1177                 }
1178 
1179         }
1180 
1181         return 0;
1182 }
1183 
1184 /* optionally pass new dynamic kcontrol to component driver. */
1185 static int soc_tplg_add_route(struct soc_tplg *tplg,
1186         struct snd_soc_dapm_route *route)
1187 {
1188         if (tplg->comp && tplg->ops && tplg->ops->dapm_route_load)
1189                 return tplg->ops->dapm_route_load(tplg->comp, tplg->index,
1190                         route);
1191 
1192         return 0;
1193 }
1194 
1195 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
1196         struct snd_soc_tplg_hdr *hdr)
1197 {
1198         struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1199         struct snd_soc_tplg_dapm_graph_elem *elem;
1200         struct snd_soc_dapm_route **routes;
1201         int count, i, j;
1202         int ret = 0;
1203 
1204         count = le32_to_cpu(hdr->count);
1205 
1206         if (tplg->pass != SOC_TPLG_PASS_GRAPH) {
1207                 tplg->pos +=
1208                         le32_to_cpu(hdr->size) +
1209                         le32_to_cpu(hdr->payload_size);
1210 
1211                 return 0;
1212         }
1213 
1214         if (soc_tplg_check_elem_count(tplg,
1215                 sizeof(struct snd_soc_tplg_dapm_graph_elem),
1216                 count, le32_to_cpu(hdr->payload_size), "graph")) {
1217 
1218                 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n",
1219                         count);
1220                 return -EINVAL;
1221         }
1222 
1223         dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
1224                 hdr->index);
1225 
1226         /* allocate memory for pointer to array of dapm routes */
1227         routes = kcalloc(count, sizeof(struct snd_soc_dapm_route *),
1228                          GFP_KERNEL);
1229         if (!routes)
1230                 return -ENOMEM;
1231 
1232         /*
1233          * allocate memory for each dapm route in the array.
1234          * This needs to be done individually so that
1235          * each route can be freed when it is removed in remove_route().
1236          */
1237         for (i = 0; i < count; i++) {
1238                 routes[i] = kzalloc(sizeof(*routes[i]), GFP_KERNEL);
1239                 if (!routes[i]) {
1240                         /* free previously allocated memory */
1241                         for (j = 0; j < i; j++)
1242                                 kfree(routes[j]);
1243 
1244                         kfree(routes);
1245                         return -ENOMEM;
1246                 }
1247         }
1248 
1249         for (i = 0; i < count; i++) {
1250                 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos;
1251                 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem);
1252 
1253                 /* validate routes */
1254                 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1255                             SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1256                         ret = -EINVAL;
1257                         break;
1258                 }
1259                 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1260                             SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1261                         ret = -EINVAL;
1262                         break;
1263                 }
1264                 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1265                             SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1266                         ret = -EINVAL;
1267                         break;
1268                 }
1269 
1270                 routes[i]->source = elem->source;
1271                 routes[i]->sink = elem->sink;
1272 
1273                 /* set to NULL atm for tplg users */
1274                 routes[i]->connected = NULL;
1275                 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0)
1276                         routes[i]->control = NULL;
1277                 else
1278                         routes[i]->control = elem->control;
1279 
1280                 /* add route dobj to dobj_list */
1281                 routes[i]->dobj.type = SND_SOC_DOBJ_GRAPH;
1282                 routes[i]->dobj.ops = tplg->ops;
1283                 routes[i]->dobj.index = tplg->index;
1284                 list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list);
1285 
1286                 ret = soc_tplg_add_route(tplg, routes[i]);
1287                 if (ret < 0)
1288                         break;
1289 
1290                 /* add route, but keep going if some fail */
1291                 snd_soc_dapm_add_routes(dapm, routes[i], 1);
1292         }
1293 
1294         /* free memory allocated for all dapm routes in case of error */
1295         if (ret < 0)
1296                 for (i = 0; i < count ; i++)
1297                         kfree(routes[i]);
1298 
1299         /*
1300          * free pointer to array of dapm routes as this is no longer needed.
1301          * The memory allocated for each dapm route will be freed
1302          * when it is removed in remove_route().
1303          */
1304         kfree(routes);
1305 
1306         return ret;
1307 }
1308 
1309 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
1310         struct soc_tplg *tplg, int num_kcontrols)
1311 {
1312         struct snd_kcontrol_new *kc;
1313         struct soc_mixer_control *sm;
1314         struct snd_soc_tplg_mixer_control *mc;
1315         int i, err;
1316 
1317         kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1318         if (kc == NULL)
1319                 return NULL;
1320 
1321         for (i = 0; i < num_kcontrols; i++) {
1322                 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
1323 
1324                 /* validate kcontrol */
1325                 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1326                         SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1327                         goto err_sm;
1328 
1329                 sm = kzalloc(sizeof(*sm), GFP_KERNEL);
1330                 if (sm == NULL)
1331                         goto err_sm;
1332 
1333                 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
1334                               le32_to_cpu(mc->priv.size));
1335 
1336                 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n",
1337                         mc->hdr.name, i);
1338 
1339                 kc[i].private_value = (long)sm;
1340                 kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL);
1341                 if (kc[i].name == NULL)
1342                         goto err_sm;
1343                 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1344                 kc[i].access = le32_to_cpu(mc->hdr.access);
1345 
1346                 /* we only support FL/FR channel mapping atm */
1347                 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
1348                         SNDRV_CHMAP_FL);
1349                 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
1350                         SNDRV_CHMAP_FR);
1351                 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
1352                         SNDRV_CHMAP_FL);
1353                 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
1354                         SNDRV_CHMAP_FR);
1355 
1356                 sm->max = le32_to_cpu(mc->max);
1357                 sm->min = le32_to_cpu(mc->min);
1358                 sm->invert = le32_to_cpu(mc->invert);
1359                 sm->platform_max = le32_to_cpu(mc->platform_max);
1360                 sm->dobj.index = tplg->index;
1361                 INIT_LIST_HEAD(&sm->dobj.list);
1362 
1363                 /* map io handlers */
1364                 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg);
1365                 if (err) {
1366                         soc_control_err(tplg, &mc->hdr, mc->hdr.name);
1367                         goto err_sm;
1368                 }
1369 
1370                 /* create any TLV data */
1371                 err = soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr);
1372                 if (err < 0) {
1373                         dev_err(tplg->dev, "ASoC: failed to create TLV %s\n",
1374                                 mc->hdr.name);
1375                         kfree(sm);
1376                         continue;
1377                 }
1378 
1379                 /* pass control to driver for optional further init */
1380                 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1381                         (struct snd_soc_tplg_ctl_hdr *)mc);
1382                 if (err < 0) {
1383                         dev_err(tplg->dev, "ASoC: failed to init %s\n",
1384                                 mc->hdr.name);
1385                         soc_tplg_free_tlv(tplg, &kc[i]);
1386                         goto err_sm;
1387                 }
1388         }
1389         return kc;
1390 
1391 err_sm:
1392         for (; i >= 0; i--) {
1393                 sm = (struct soc_mixer_control *)kc[i].private_value;
1394                 kfree(sm);
1395                 kfree(kc[i].name);
1396         }
1397         kfree(kc);
1398 
1399         return NULL;
1400 }
1401 
1402 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
1403         struct soc_tplg *tplg, int num_kcontrols)
1404 {
1405         struct snd_kcontrol_new *kc;
1406         struct snd_soc_tplg_enum_control *ec;
1407         struct soc_enum *se;
1408         int i, err;
1409 
1410         kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1411         if (kc == NULL)
1412                 return NULL;
1413 
1414         for (i = 0; i < num_kcontrols; i++) {
1415                 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1416                 /* validate kcontrol */
1417                 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1418                             SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1419                         goto err_se;
1420 
1421                 se = kzalloc(sizeof(*se), GFP_KERNEL);
1422                 if (se == NULL)
1423                         goto err_se;
1424 
1425                 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1426                               le32_to_cpu(ec->priv.size));
1427 
1428                 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
1429                         ec->hdr.name);
1430 
1431                 kc[i].private_value = (long)se;
1432                 kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL);
1433                 if (kc[i].name == NULL)
1434                         goto err_se;
1435                 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1436                 kc[i].access = le32_to_cpu(ec->hdr.access);
1437 
1438                 /* we only support FL/FR channel mapping atm */
1439                 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1440                 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1441                                                   SNDRV_CHMAP_FL);
1442                 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1443                                                   SNDRV_CHMAP_FR);
1444 
1445                 se->items = le32_to_cpu(ec->items);
1446                 se->mask = le32_to_cpu(ec->mask);
1447                 se->dobj.index = tplg->index;
1448 
1449                 switch (le32_to_cpu(ec->hdr.ops.info)) {
1450                 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1451                 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1452                         err = soc_tplg_denum_create_values(se, ec);
1453                         if (err < 0) {
1454                                 dev_err(tplg->dev, "ASoC: could not create values for %s\n",
1455                                         ec->hdr.name);
1456                                 goto err_se;
1457                         }
1458                         /* fall through */
1459                 case SND_SOC_TPLG_CTL_ENUM:
1460                 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1461                 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1462                         err = soc_tplg_denum_create_texts(se, ec);
1463                         if (err < 0) {
1464                                 dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
1465                                         ec->hdr.name);
1466                                 goto err_se;
1467                         }
1468                         break;
1469                 default:
1470                         dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
1471                                 ec->hdr.ops.info, ec->hdr.name);
1472                         goto err_se;
1473                 }
1474 
1475                 /* map io handlers */
1476                 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg);
1477                 if (err) {
1478                         soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1479                         goto err_se;
1480                 }
1481 
1482                 /* pass control to driver for optional further init */
1483                 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1484                         (struct snd_soc_tplg_ctl_hdr *)ec);
1485                 if (err < 0) {
1486                         dev_err(tplg->dev, "ASoC: failed to init %s\n",
1487                                 ec->hdr.name);
1488                         goto err_se;
1489                 }
1490         }
1491 
1492         return kc;
1493 
1494 err_se:
1495         for (; i >= 0; i--) {
1496                 /* free values and texts */
1497                 se = (struct soc_enum *)kc[i].private_value;
1498 
1499                 if (se) {
1500                         soc_tplg_denum_remove_values(se);
1501                         soc_tplg_denum_remove_texts(se);
1502                 }
1503 
1504                 kfree(se);
1505                 kfree(kc[i].name);
1506         }
1507         kfree(kc);
1508 
1509         return NULL;
1510 }
1511 
1512 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
1513         struct soc_tplg *tplg, int num_kcontrols)
1514 {
1515         struct snd_soc_tplg_bytes_control *be;
1516         struct soc_bytes_ext *sbe;
1517         struct snd_kcontrol_new *kc;
1518         int i, err;
1519 
1520         kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1521         if (!kc)
1522                 return NULL;
1523 
1524         for (i = 0; i < num_kcontrols; i++) {
1525                 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
1526 
1527                 /* validate kcontrol */
1528                 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1529                         SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1530                         goto err_sbe;
1531 
1532                 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
1533                 if (sbe == NULL)
1534                         goto err_sbe;
1535 
1536                 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
1537                               le32_to_cpu(be->priv.size));
1538 
1539                 dev_dbg(tplg->dev,
1540                         "ASoC: adding bytes kcontrol %s with access 0x%x\n",
1541                         be->hdr.name, be->hdr.access);
1542 
1543                 kc[i].private_value = (long)sbe;
1544                 kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL);
1545                 if (kc[i].name == NULL)
1546                         goto err_sbe;
1547                 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1548                 kc[i].access = le32_to_cpu(be->hdr.access);
1549 
1550                 sbe->max = le32_to_cpu(be->max);
1551                 INIT_LIST_HEAD(&sbe->dobj.list);
1552 
1553                 /* map standard io handlers and check for external handlers */
1554                 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg);
1555                 if (err) {
1556                         soc_control_err(tplg, &be->hdr, be->hdr.name);
1557                         goto err_sbe;
1558                 }
1559 
1560                 /* pass control to driver for optional further init */
1561                 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1562                         (struct snd_soc_tplg_ctl_hdr *)be);
1563                 if (err < 0) {
1564                         dev_err(tplg->dev, "ASoC: failed to init %s\n",
1565                                 be->hdr.name);
1566                         goto err_sbe;
1567                 }
1568         }
1569 
1570         return kc;
1571 
1572 err_sbe:
1573         for (; i >= 0; i--) {
1574                 sbe = (struct soc_bytes_ext *)kc[i].private_value;
1575                 kfree(sbe);
1576                 kfree(kc[i].name);
1577         }
1578         kfree(kc);
1579 
1580         return NULL;
1581 }
1582 
1583 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
1584         struct snd_soc_tplg_dapm_widget *w)
1585 {
1586         struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1587         struct snd_soc_dapm_widget template, *widget;
1588         struct snd_soc_tplg_ctl_hdr *control_hdr;
1589         struct snd_soc_card *card = tplg->comp->card;
1590         unsigned int kcontrol_type;
1591         int ret = 0;
1592 
1593         if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1594                 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1595                 return -EINVAL;
1596         if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1597                 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1598                 return -EINVAL;
1599 
1600         dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n",
1601                 w->name, w->id);
1602 
1603         memset(&template, 0, sizeof(template));
1604 
1605         /* map user to kernel widget ID */
1606         template.id = get_widget_id(le32_to_cpu(w->id));
1607         if ((int)template.id < 0)
1608                 return template.id;
1609 
1610         /* strings are allocated here, but used and freed by the widget */
1611         template.name = kstrdup(w->name, GFP_KERNEL);
1612         if (!template.name)
1613                 return -ENOMEM;
1614         template.sname = kstrdup(w->sname, GFP_KERNEL);
1615         if (!template.sname) {
1616                 ret = -ENOMEM;
1617                 goto err;
1618         }
1619         template.reg = le32_to_cpu(w->reg);
1620         template.shift = le32_to_cpu(w->shift);
1621         template.mask = le32_to_cpu(w->mask);
1622         template.subseq = le32_to_cpu(w->subseq);
1623         template.on_val = w->invert ? 0 : 1;
1624         template.off_val = w->invert ? 1 : 0;
1625         template.ignore_suspend = le32_to_cpu(w->ignore_suspend);
1626         template.event_flags = le16_to_cpu(w->event_flags);
1627         template.dobj.index = tplg->index;
1628 
1629         tplg->pos +=
1630                 (sizeof(struct snd_soc_tplg_dapm_widget) +
1631                  le32_to_cpu(w->priv.size));
1632 
1633         if (w->num_kcontrols == 0) {
1634                 kcontrol_type = 0;
1635                 template.num_kcontrols = 0;
1636                 goto widget;
1637         }
1638 
1639         control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1640         dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n",
1641                 w->name, w->num_kcontrols, control_hdr->type);
1642 
1643         switch (le32_to_cpu(control_hdr->ops.info)) {
1644         case SND_SOC_TPLG_CTL_VOLSW:
1645         case SND_SOC_TPLG_CTL_STROBE:
1646         case SND_SOC_TPLG_CTL_VOLSW_SX:
1647         case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1648         case SND_SOC_TPLG_CTL_RANGE:
1649         case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1650                 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER;  /* volume mixer */
1651                 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1652                 template.kcontrol_news =
1653                         soc_tplg_dapm_widget_dmixer_create(tplg,
1654                         template.num_kcontrols);
1655                 if (!template.kcontrol_news) {
1656                         ret = -ENOMEM;
1657                         goto hdr_err;
1658                 }
1659                 break;
1660         case SND_SOC_TPLG_CTL_ENUM:
1661         case SND_SOC_TPLG_CTL_ENUM_VALUE:
1662         case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1663         case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1664         case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1665                 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */
1666                 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1667                 template.kcontrol_news =
1668                         soc_tplg_dapm_widget_denum_create(tplg,
1669                         template.num_kcontrols);
1670                 if (!template.kcontrol_news) {
1671                         ret = -ENOMEM;
1672                         goto hdr_err;
1673                 }
1674                 break;
1675         case SND_SOC_TPLG_CTL_BYTES:
1676                 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */
1677                 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1678                 template.kcontrol_news =
1679                         soc_tplg_dapm_widget_dbytes_create(tplg,
1680                                 template.num_kcontrols);
1681                 if (!template.kcontrol_news) {
1682                         ret = -ENOMEM;
1683                         goto hdr_err;
1684                 }
1685                 break;
1686         default:
1687                 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n",
1688                         control_hdr->ops.get, control_hdr->ops.put,
1689                         le32_to_cpu(control_hdr->ops.info));
1690                 ret = -EINVAL;
1691                 goto hdr_err;
1692         }
1693 
1694 widget:
1695         ret = soc_tplg_widget_load(tplg, &template, w);
1696         if (ret < 0)
1697                 goto hdr_err;
1698 
1699         /* card dapm mutex is held by the core if we are loading topology
1700          * data during sound card init. */
1701         if (card->instantiated)
1702                 widget = snd_soc_dapm_new_control(dapm, &template);
1703         else
1704                 widget = snd_soc_dapm_new_control_unlocked(dapm, &template);
1705         if (IS_ERR(widget)) {
1706                 ret = PTR_ERR(widget);
1707                 goto hdr_err;
1708         }
1709 
1710         widget->dobj.type = SND_SOC_DOBJ_WIDGET;
1711         widget->dobj.widget.kcontrol_type = kcontrol_type;
1712         widget->dobj.ops = tplg->ops;
1713         widget->dobj.index = tplg->index;
1714         list_add(&widget->dobj.list, &tplg->comp->dobj_list);
1715 
1716         ret = soc_tplg_widget_ready(tplg, widget, w);
1717         if (ret < 0)
1718                 goto ready_err;
1719 
1720         kfree(template.sname);
1721         kfree(template.name);
1722 
1723         return 0;
1724 
1725 ready_err:
1726         snd_soc_tplg_widget_remove(widget);
1727         snd_soc_dapm_free_widget(widget);
1728 hdr_err:
1729         kfree(template.sname);
1730 err:
1731         kfree(template.name);
1732         return ret;
1733 }
1734 
1735 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg,
1736         struct snd_soc_tplg_hdr *hdr)
1737 {
1738         struct snd_soc_tplg_dapm_widget *widget;
1739         int ret, count, i;
1740 
1741         count = le32_to_cpu(hdr->count);
1742 
1743         if (tplg->pass != SOC_TPLG_PASS_WIDGET)
1744                 return 0;
1745 
1746         dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
1747 
1748         for (i = 0; i < count; i++) {
1749                 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
1750                 if (le32_to_cpu(widget->size) != sizeof(*widget)) {
1751                         dev_err(tplg->dev, "ASoC: invalid widget size\n");
1752                         return -EINVAL;
1753                 }
1754 
1755                 ret = soc_tplg_dapm_widget_create(tplg, widget);
1756                 if (ret < 0) {
1757                         dev_err(tplg->dev, "ASoC: failed to load widget %s\n",
1758                                 widget->name);
1759                         return ret;
1760                 }
1761         }
1762 
1763         return 0;
1764 }
1765 
1766 static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
1767 {
1768         struct snd_soc_card *card = tplg->comp->card;
1769         int ret;
1770 
1771         /* Card might not have been registered at this point.
1772          * If so, just return success.
1773         */
1774         if (!card || !card->instantiated) {
1775                 dev_warn(tplg->dev, "ASoC: Parent card not yet available,"
1776                         " widget card binding deferred\n");
1777                 return 0;
1778         }
1779 
1780         ret = snd_soc_dapm_new_widgets(card);
1781         if (ret < 0)
1782                 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n",
1783                         ret);
1784 
1785         return 0;
1786 }
1787 
1788 static void set_stream_info(struct snd_soc_pcm_stream *stream,
1789         struct snd_soc_tplg_stream_caps *caps)
1790 {
1791         stream->stream_name = kstrdup(caps->name, GFP_KERNEL);
1792         stream->channels_min = le32_to_cpu(caps->channels_min);
1793         stream->channels_max = le32_to_cpu(caps->channels_max);
1794         stream->rates = le32_to_cpu(caps->rates);
1795         stream->rate_min = le32_to_cpu(caps->rate_min);
1796         stream->rate_max = le32_to_cpu(caps->rate_max);
1797         stream->formats = le64_to_cpu(caps->formats);
1798         stream->sig_bits = le32_to_cpu(caps->sig_bits);
1799 }
1800 
1801 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv,
1802                           unsigned int flag_mask, unsigned int flags)
1803 {
1804         if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES)
1805                 dai_drv->symmetric_rates =
1806                         flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1807 
1808         if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS)
1809                 dai_drv->symmetric_channels =
1810                         flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ?
1811                         1 : 0;
1812 
1813         if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS)
1814                 dai_drv->symmetric_samplebits =
1815                         flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1816                         1 : 0;
1817 }
1818 
1819 static int soc_tplg_dai_create(struct soc_tplg *tplg,
1820         struct snd_soc_tplg_pcm *pcm)
1821 {
1822         struct snd_soc_dai_driver *dai_drv;
1823         struct snd_soc_pcm_stream *stream;
1824         struct snd_soc_tplg_stream_caps *caps;
1825         int ret;
1826 
1827         dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
1828         if (dai_drv == NULL)
1829                 return -ENOMEM;
1830 
1831         if (strlen(pcm->dai_name))
1832                 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL);
1833         dai_drv->id = le32_to_cpu(pcm->dai_id);
1834 
1835         if (pcm->playback) {
1836                 stream = &dai_drv->playback;
1837                 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1838                 set_stream_info(stream, caps);
1839         }
1840 
1841         if (pcm->capture) {
1842                 stream = &dai_drv->capture;
1843                 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1844                 set_stream_info(stream, caps);
1845         }
1846 
1847         if (pcm->compress)
1848                 dai_drv->compress_new = snd_soc_new_compress;
1849 
1850         /* pass control to component driver for optional further init */
1851         ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL);
1852         if (ret < 0) {
1853                 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
1854                 kfree(dai_drv->playback.stream_name);
1855                 kfree(dai_drv->capture.stream_name);
1856                 kfree(dai_drv->name);
1857                 kfree(dai_drv);
1858                 return ret;
1859         }
1860 
1861         dai_drv->dobj.index = tplg->index;
1862         dai_drv->dobj.ops = tplg->ops;
1863         dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
1864         list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
1865 
1866         /* register the DAI to the component */
1867         return snd_soc_register_dai(tplg->comp, dai_drv);
1868 }
1869 
1870 static void set_link_flags(struct snd_soc_dai_link *link,
1871                 unsigned int flag_mask, unsigned int flags)
1872 {
1873         if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
1874                 link->symmetric_rates =
1875                         flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1876 
1877         if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
1878                 link->symmetric_channels =
1879                         flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ?
1880                         1 : 0;
1881 
1882         if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
1883                 link->symmetric_samplebits =
1884                         flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1885                         1 : 0;
1886 
1887         if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP)
1888                 link->ignore_suspend =
1889                 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ?
1890                 1 : 0;
1891 }
1892 
1893 /* create the FE DAI link */
1894 static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
1895         struct snd_soc_tplg_pcm *pcm)
1896 {
1897         struct snd_soc_dai_link *link;
1898         struct snd_soc_dai_link_component *dlc;
1899         int ret;
1900 
1901         /* link + cpu + codec + platform */
1902         link = kzalloc(sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL);
1903         if (link == NULL)
1904                 return -ENOMEM;
1905 
1906         dlc = (struct snd_soc_dai_link_component *)(link + 1);
1907 
1908         link->cpus      = &dlc[0];
1909         link->codecs    = &dlc[1];
1910         link->platforms = &dlc[2];
1911 
1912         link->num_cpus   = 1;
1913         link->num_codecs = 1;
1914         link->num_platforms = 1;
1915 
1916         link->dobj.index = tplg->index;
1917         link->dobj.ops = tplg->ops;
1918         link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
1919 
1920         if (strlen(pcm->pcm_name)) {
1921                 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1922                 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1923         }
1924         link->id = le32_to_cpu(pcm->pcm_id);
1925 
1926         if (strlen(pcm->dai_name))
1927                 link->cpus->dai_name = kstrdup(pcm->dai_name, GFP_KERNEL);
1928 
1929         link->codecs->name = "snd-soc-dummy";
1930         link->codecs->dai_name = "snd-soc-dummy-dai";
1931 
1932         link->platforms->name = "snd-soc-dummy";
1933 
1934         /* enable DPCM */
1935         link->dynamic = 1;
1936         link->dpcm_playback = le32_to_cpu(pcm->playback);
1937         link->dpcm_capture = le32_to_cpu(pcm->capture);
1938         if (pcm->flag_mask)
1939                 set_link_flags(link,
1940                                le32_to_cpu(pcm->flag_mask),
1941                                le32_to_cpu(pcm->flags));
1942 
1943         /* pass control to component driver for optional further init */
1944         ret = soc_tplg_dai_link_load(tplg, link, NULL);
1945         if (ret < 0) {
1946                 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n");
1947                 goto err;
1948         }
1949 
1950         ret = snd_soc_add_dai_link(tplg->comp->card, link);
1951         if (ret < 0) {
1952                 dev_err(tplg->comp->dev, "ASoC: adding FE link failed\n");
1953                 goto err;
1954         }
1955 
1956         list_add(&link->dobj.list, &tplg->comp->dobj_list);
1957 
1958         return 0;
1959 err:
1960         kfree(link->name);
1961         kfree(link->stream_name);
1962         kfree(link->cpus->dai_name);
1963         kfree(link);
1964         return ret;
1965 }
1966 
1967 /* create a FE DAI and DAI link from the PCM object */
1968 static int soc_tplg_pcm_create(struct soc_tplg *tplg,
1969         struct snd_soc_tplg_pcm *pcm)
1970 {
1971         int ret;
1972 
1973         ret = soc_tplg_dai_create(tplg, pcm);
1974         if (ret < 0)
1975                 return ret;
1976 
1977         return  soc_tplg_fe_link_create(tplg, pcm);
1978 }
1979 
1980 /* copy stream caps from the old version 4 of source */
1981 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest,
1982                                 struct snd_soc_tplg_stream_caps_v4 *src)
1983 {
1984         dest->size = cpu_to_le32(sizeof(*dest));
1985         memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1986         dest->formats = src->formats;
1987         dest->rates = src->rates;
1988         dest->rate_min = src->rate_min;
1989         dest->rate_max = src->rate_max;
1990         dest->channels_min = src->channels_min;
1991         dest->channels_max = src->channels_max;
1992         dest->periods_min = src->periods_min;
1993         dest->periods_max = src->periods_max;
1994         dest->period_size_min = src->period_size_min;
1995         dest->period_size_max = src->period_size_max;
1996         dest->buffer_size_min = src->buffer_size_min;
1997         dest->buffer_size_max = src->buffer_size_max;
1998 }
1999 
2000 /**
2001  * pcm_new_ver - Create the new version of PCM from the old version.
2002  * @tplg: topology context
2003  * @src: older version of pcm as a source
2004  * @pcm: latest version of pcm created from the source
2005  *
2006  * Support from vesion 4. User should free the returned pcm manually.
2007  */
2008 static int pcm_new_ver(struct soc_tplg *tplg,
2009                        struct snd_soc_tplg_pcm *src,
2010                        struct snd_soc_tplg_pcm **pcm)
2011 {
2012         struct snd_soc_tplg_pcm *dest;
2013         struct snd_soc_tplg_pcm_v4 *src_v4;
2014         int i;
2015 
2016         *pcm = NULL;
2017 
2018         if (le32_to_cpu(src->size) != sizeof(*src_v4)) {
2019                 dev_err(tplg->dev, "ASoC: invalid PCM size\n");
2020                 return -EINVAL;
2021         }
2022 
2023         dev_warn(tplg->dev, "ASoC: old version of PCM\n");
2024         src_v4 = (struct snd_soc_tplg_pcm_v4 *)src;
2025         dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2026         if (!dest)
2027                 return -ENOMEM;
2028 
2029         dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2030         memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2031         memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2032         dest->pcm_id = src_v4->pcm_id;
2033         dest->dai_id = src_v4->dai_id;
2034         dest->playback = src_v4->playback;
2035         dest->capture = src_v4->capture;
2036         dest->compress = src_v4->compress;
2037         dest->num_streams = src_v4->num_streams;
2038         for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2039                 memcpy(&dest->stream[i], &src_v4->stream[i],
2040                        sizeof(struct snd_soc_tplg_stream));
2041 
2042         for (i = 0; i < 2; i++)
2043                 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]);
2044 
2045         *pcm = dest;
2046         return 0;
2047 }
2048 
2049 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
2050         struct snd_soc_tplg_hdr *hdr)
2051 {
2052         struct snd_soc_tplg_pcm *pcm, *_pcm;
2053         int count;
2054         int size;
2055         int i;
2056         bool abi_match;
2057         int ret;
2058 
2059         count = le32_to_cpu(hdr->count);
2060 
2061         if (tplg->pass != SOC_TPLG_PASS_PCM_DAI)
2062                 return 0;
2063 
2064         /* check the element size and count */
2065         pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
2066         size = le32_to_cpu(pcm->size);
2067         if (size > sizeof(struct snd_soc_tplg_pcm)
2068                 || size < sizeof(struct snd_soc_tplg_pcm_v4)) {
2069                 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
2070                         size);
2071                 return -EINVAL;
2072         }
2073 
2074         if (soc_tplg_check_elem_count(tplg,
2075                                       size, count,
2076                                       le32_to_cpu(hdr->payload_size),
2077                                       "PCM DAI")) {
2078                 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n",
2079                         count);
2080                 return -EINVAL;
2081         }
2082 
2083         for (i = 0; i < count; i++) {
2084                 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
2085                 size = le32_to_cpu(pcm->size);
2086 
2087                 /* check ABI version by size, create a new version of pcm
2088                  * if abi not match.
2089                  */
2090                 if (size == sizeof(*pcm)) {
2091                         abi_match = true;
2092                         _pcm = pcm;
2093                 } else {
2094                         abi_match = false;
2095                         ret = pcm_new_ver(tplg, pcm, &_pcm);
2096                         if (ret < 0)
2097                                 return ret;
2098                 }
2099 
2100                 /* create the FE DAIs and DAI links */
2101                 ret = soc_tplg_pcm_create(tplg, _pcm);
2102                 if (ret < 0) {
2103                         if (!abi_match)
2104                                 kfree(_pcm);
2105                         return ret;
2106                 }
2107 
2108                 /* offset by version-specific struct size and
2109                  * real priv data size
2110                  */
2111                 tplg->pos += size + le32_to_cpu(_pcm->priv.size);
2112 
2113                 if (!abi_match)
2114                         kfree(_pcm); /* free the duplicated one */
2115         }
2116 
2117         dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
2118 
2119         return 0;
2120 }
2121 
2122 /**
2123  * set_link_hw_format - Set the HW audio format of the physical DAI link.
2124  * @link: &snd_soc_dai_link which should be updated
2125  * @cfg: physical link configs.
2126  *
2127  * Topology context contains a list of supported HW formats (configs) and
2128  * a default format ID for the physical link. This function will use this
2129  * default ID to choose the HW format to set the link's DAI format for init.
2130  */
2131 static void set_link_hw_format(struct snd_soc_dai_link *link,
2132                         struct snd_soc_tplg_link_config *cfg)
2133 {
2134         struct snd_soc_tplg_hw_config *hw_config;
2135         unsigned char bclk_master, fsync_master;
2136         unsigned char invert_bclk, invert_fsync;
2137         int i;
2138 
2139         for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) {
2140                 hw_config = &cfg->hw_config[i];
2141                 if (hw_config->id != cfg->default_hw_config_id)
2142                         continue;
2143 
2144                 link->dai_fmt = le32_to_cpu(hw_config->fmt) &
2145                         SND_SOC_DAIFMT_FORMAT_MASK;
2146 
2147                 /* clock gating */
2148                 switch (hw_config->clock_gated) {
2149                 case SND_SOC_TPLG_DAI_CLK_GATE_GATED:
2150                         link->dai_fmt |= SND_SOC_DAIFMT_GATED;
2151                         break;
2152 
2153                 case SND_SOC_TPLG_DAI_CLK_GATE_CONT:
2154                         link->dai_fmt |= SND_SOC_DAIFMT_CONT;
2155                         break;
2156 
2157                 default:
2158                         /* ignore the value */
2159                         break;
2160                 }
2161 
2162                 /* clock signal polarity */
2163                 invert_bclk = hw_config->invert_bclk;
2164                 invert_fsync = hw_config->invert_fsync;
2165                 if (!invert_bclk && !invert_fsync)
2166                         link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
2167                 else if (!invert_bclk && invert_fsync)
2168                         link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
2169                 else if (invert_bclk && !invert_fsync)
2170                         link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
2171                 else
2172                         link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
2173 
2174                 /* clock masters */
2175                 bclk_master = (hw_config->bclk_master ==
2176                                SND_SOC_TPLG_BCLK_CM);
2177                 fsync_master = (hw_config->fsync_master ==
2178                                 SND_SOC_TPLG_FSYNC_CM);
2179                 if (bclk_master && fsync_master)
2180                         link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
2181                 else if (!bclk_master && fsync_master)
2182                         link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
2183                 else if (bclk_master && !fsync_master)
2184                         link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
2185                 else
2186                         link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
2187         }
2188 }
2189 
2190 /**
2191  * link_new_ver - Create a new physical link config from the old
2192  * version of source.
2193  * @tplg: topology context
2194  * @src: old version of phyical link config as a source
2195  * @link: latest version of physical link config created from the source
2196  *
2197  * Support from vesion 4. User need free the returned link config manually.
2198  */
2199 static int link_new_ver(struct soc_tplg *tplg,
2200                         struct snd_soc_tplg_link_config *src,
2201                         struct snd_soc_tplg_link_config **link)
2202 {
2203         struct snd_soc_tplg_link_config *dest;
2204         struct snd_soc_tplg_link_config_v4 *src_v4;
2205         int i;
2206 
2207         *link = NULL;
2208 
2209         if (le32_to_cpu(src->size) !=
2210             sizeof(struct snd_soc_tplg_link_config_v4)) {
2211                 dev_err(tplg->dev, "ASoC: invalid physical link config size\n");
2212                 return -EINVAL;
2213         }
2214 
2215         dev_warn(tplg->dev, "ASoC: old version of physical link config\n");
2216 
2217         src_v4 = (struct snd_soc_tplg_link_config_v4 *)src;
2218         dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2219         if (!dest)
2220                 return -ENOMEM;
2221 
2222         dest->size = cpu_to_le32(sizeof(*dest));
2223         dest->id = src_v4->id;
2224         dest->num_streams = src_v4->num_streams;
2225         for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2226                 memcpy(&dest->stream[i], &src_v4->stream[i],
2227                        sizeof(struct snd_soc_tplg_stream));
2228 
2229         *link = dest;
2230         return 0;
2231 }
2232 
2233 /* Find and configure an existing physical DAI link */
2234 static int soc_tplg_link_config(struct soc_tplg *tplg,
2235         struct snd_soc_tplg_link_config *cfg)
2236 {
2237         struct snd_soc_dai_link *link;
2238         const char *name, *stream_name;
2239         size_t len;
2240         int ret;
2241 
2242         len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2243         if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2244                 return -EINVAL;
2245         else if (len)
2246                 name = cfg->name;
2247         else
2248                 name = NULL;
2249 
2250         len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2251         if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2252                 return -EINVAL;
2253         else if (len)
2254                 stream_name = cfg->stream_name;
2255         else
2256                 stream_name = NULL;
2257 
2258         link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id),
2259                                      name, stream_name);
2260         if (!link) {
2261                 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n",
2262                         name, cfg->id);
2263                 return -EINVAL;
2264         }
2265 
2266         /* hw format */
2267         if (cfg->num_hw_configs)
2268                 set_link_hw_format(link, cfg);
2269 
2270         /* flags */
2271         if (cfg->flag_mask)
2272                 set_link_flags(link,
2273                                le32_to_cpu(cfg->flag_mask),
2274                                le32_to_cpu(cfg->flags));
2275 
2276         /* pass control to component driver for optional further init */
2277         ret = soc_tplg_dai_link_load(tplg, link, cfg);
2278         if (ret < 0) {
2279                 dev_err(tplg->dev, "ASoC: physical link loading failed\n");
2280                 return ret;
2281         }
2282 
2283         /* for unloading it in snd_soc_tplg_component_remove */
2284         link->dobj.index = tplg->index;
2285         link->dobj.ops = tplg->ops;
2286         link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK;
2287         list_add(&link->dobj.list, &tplg->comp->dobj_list);
2288 
2289         return 0;
2290 }
2291 
2292 
2293 /* Load physical link config elements from the topology context */
2294 static int soc_tplg_link_elems_load(struct soc_tplg *tplg,
2295         struct snd_soc_tplg_hdr *hdr)
2296 {
2297         struct snd_soc_tplg_link_config *link, *_link;
2298         int count;
2299         int size;
2300         int i, ret;
2301         bool abi_match;
2302 
2303         count = le32_to_cpu(hdr->count);
2304 
2305         if (tplg->pass != SOC_TPLG_PASS_LINK) {
2306                 tplg->pos += le32_to_cpu(hdr->size) +
2307                         le32_to_cpu(hdr->payload_size);
2308                 return 0;
2309         };
2310 
2311         /* check the element size and count */
2312         link = (struct snd_soc_tplg_link_config *)tplg->pos;
2313         size = le32_to_cpu(link->size);
2314         if (size > sizeof(struct snd_soc_tplg_link_config)
2315                 || size < sizeof(struct snd_soc_tplg_link_config_v4)) {
2316                 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
2317                         size);
2318                 return -EINVAL;
2319         }
2320 
2321         if (soc_tplg_check_elem_count(tplg,
2322                                       size, count,
2323                                       le32_to_cpu(hdr->payload_size),
2324                                       "physical link config")) {
2325                 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n",
2326                         count);
2327                 return -EINVAL;
2328         }
2329 
2330         /* config physical DAI links */
2331         for (i = 0; i < count; i++) {
2332                 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2333                 size = le32_to_cpu(link->size);
2334                 if (size == sizeof(*link)) {
2335                         abi_match = true;
2336                         _link = link;
2337                 } else {
2338                         abi_match = false;
2339                         ret = link_new_ver(tplg, link, &_link);
2340                         if (ret < 0)
2341                                 return ret;
2342                 }
2343 
2344                 ret = soc_tplg_link_config(tplg, _link);
2345                 if (ret < 0) {
2346                         if (!abi_match)
2347                                 kfree(_link);
2348                         return ret;
2349                 }
2350 
2351                 /* offset by version-specific struct size and
2352                  * real priv data size
2353                  */
2354                 tplg->pos += size + le32_to_cpu(_link->priv.size);
2355 
2356                 if (!abi_match)
2357                         kfree(_link); /* free the duplicated one */
2358         }
2359 
2360         return 0;
2361 }
2362 
2363 /**
2364  * soc_tplg_dai_config - Find and configure an existing physical DAI.
2365  * @tplg: topology context
2366  * @d: physical DAI configs.
2367  *
2368  * The physical dai should already be registered by the platform driver.
2369  * The platform driver should specify the DAI name and ID for matching.
2370  */
2371 static int soc_tplg_dai_config(struct soc_tplg *tplg,
2372                                struct snd_soc_tplg_dai *d)
2373 {
2374         struct snd_soc_dai_link_component dai_component;
2375         struct snd_soc_dai *dai;
2376         struct snd_soc_dai_driver *dai_drv;
2377         struct snd_soc_pcm_stream *stream;
2378         struct snd_soc_tplg_stream_caps *caps;
2379         int ret;
2380 
2381         memset(&dai_component, 0, sizeof(dai_component));
2382 
2383         dai_component.dai_name = d->dai_name;
2384         dai = snd_soc_find_dai(&dai_component);
2385         if (!dai) {
2386                 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n",
2387                         d->dai_name);
2388                 return -EINVAL;
2389         }
2390 
2391         if (le32_to_cpu(d->dai_id) != dai->id) {
2392                 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n",
2393                         d->dai_name);
2394                 return -EINVAL;
2395         }
2396 
2397         dai_drv = dai->driver;
2398         if (!dai_drv)
2399                 return -EINVAL;
2400 
2401         if (d->playback) {
2402                 stream = &dai_drv->playback;
2403                 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
2404                 set_stream_info(stream, caps);
2405         }
2406 
2407         if (d->capture) {
2408                 stream = &dai_drv->capture;
2409                 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
2410                 set_stream_info(stream, caps);
2411         }
2412 
2413         if (d->flag_mask)
2414                 set_dai_flags(dai_drv,
2415                               le32_to_cpu(d->flag_mask),
2416                               le32_to_cpu(d->flags));
2417 
2418         /* pass control to component driver for optional further init */
2419         ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai);
2420         if (ret < 0) {
2421                 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
2422                 return ret;
2423         }
2424 
2425         return 0;
2426 }
2427 
2428 /* load physical DAI elements */
2429 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
2430                                    struct snd_soc_tplg_hdr *hdr)
2431 {
2432         struct snd_soc_tplg_dai *dai;
2433         int count;
2434         int i, ret;
2435 
2436         count = le32_to_cpu(hdr->count);
2437 
2438         if (tplg->pass != SOC_TPLG_PASS_BE_DAI)
2439                 return 0;
2440 
2441         /* config the existing BE DAIs */
2442         for (i = 0; i < count; i++) {
2443                 dai = (struct snd_soc_tplg_dai *)tplg->pos;
2444                 if (le32_to_cpu(dai->size) != sizeof(*dai)) {
2445                         dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
2446                         return -EINVAL;
2447                 }
2448 
2449                 ret = soc_tplg_dai_config(tplg, dai);
2450                 if (ret < 0) {
2451                         dev_err(tplg->dev, "ASoC: failed to configure DAI\n");
2452                         return ret;
2453                 }
2454 
2455                 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size));
2456         }
2457 
2458         dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count);
2459         return 0;
2460 }
2461 
2462 /**
2463  * manifest_new_ver - Create a new version of manifest from the old version
2464  * of source.
2465  * @tplg: topology context
2466  * @src: old version of manifest as a source
2467  * @manifest: latest version of manifest created from the source
2468  *
2469  * Support from vesion 4. Users need free the returned manifest manually.
2470  */
2471 static int manifest_new_ver(struct soc_tplg *tplg,
2472                             struct snd_soc_tplg_manifest *src,
2473                             struct snd_soc_tplg_manifest **manifest)
2474 {
2475         struct snd_soc_tplg_manifest *dest;
2476         struct snd_soc_tplg_manifest_v4 *src_v4;
2477         int size;
2478 
2479         *manifest = NULL;
2480 
2481         size = le32_to_cpu(src->size);
2482         if (size != sizeof(*src_v4)) {
2483                 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n",
2484                          size);
2485                 if (size)
2486                         return -EINVAL;
2487                 src->size = cpu_to_le32(sizeof(*src_v4));
2488         }
2489 
2490         dev_warn(tplg->dev, "ASoC: old version of manifest\n");
2491 
2492         src_v4 = (struct snd_soc_tplg_manifest_v4 *)src;
2493         dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size),
2494                        GFP_KERNEL);
2495         if (!dest)
2496                 return -ENOMEM;
2497 
2498         dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2499         dest->control_elems = src_v4->control_elems;
2500         dest->widget_elems = src_v4->widget_elems;
2501         dest->graph_elems = src_v4->graph_elems;
2502         dest->pcm_elems = src_v4->pcm_elems;
2503         dest->dai_link_elems = src_v4->dai_link_elems;
2504         dest->priv.size = src_v4->priv.size;
2505         if (dest->priv.size)
2506                 memcpy(dest->priv.data, src_v4->priv.data,
2507                        le32_to_cpu(src_v4->priv.size));
2508 
2509         *manifest = dest;
2510         return 0;
2511 }
2512 
2513 static int soc_tplg_manifest_load(struct soc_tplg *tplg,
2514                                   struct snd_soc_tplg_hdr *hdr)
2515 {
2516         struct snd_soc_tplg_manifest *manifest, *_manifest;
2517         bool abi_match;
2518         int ret = 0;
2519 
2520         if (tplg->pass != SOC_TPLG_PASS_MANIFEST)
2521                 return 0;
2522 
2523         manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
2524 
2525         /* check ABI version by size, create a new manifest if abi not match */
2526         if (le32_to_cpu(manifest->size) == sizeof(*manifest)) {
2527                 abi_match = true;
2528                 _manifest = manifest;
2529         } else {
2530                 abi_match = false;
2531                 ret = manifest_new_ver(tplg, manifest, &_manifest);
2532                 if (ret < 0)
2533                         return ret;
2534         }
2535 
2536         /* pass control to component driver for optional further init */
2537         if (tplg->comp && tplg->ops && tplg->ops->manifest)
2538                 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest);
2539 
2540         if (!abi_match) /* free the duplicated one */
2541                 kfree(_manifest);
2542 
2543         return ret;
2544 }
2545 
2546 /* validate header magic, size and type */
2547 static int soc_valid_header(struct soc_tplg *tplg,
2548         struct snd_soc_tplg_hdr *hdr)
2549 {
2550         if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size)
2551                 return 0;
2552 
2553         if (le32_to_cpu(hdr->size) != sizeof(*hdr)) {
2554                 dev_err(tplg->dev,
2555                         "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
2556                         le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
2557                         tplg->fw->size);
2558                 return -EINVAL;
2559         }
2560 
2561         /* big endian firmware objects not supported atm */
2562         if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) {
2563                 dev_err(tplg->dev,
2564                         "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n",
2565                         tplg->pass, hdr->magic,
2566                         soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2567                 return -EINVAL;
2568         }
2569 
2570         if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) {
2571                 dev_err(tplg->dev,
2572                         "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n",
2573                         tplg->pass, hdr->magic,
2574                         soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2575                 return -EINVAL;
2576         }
2577 
2578         /* Support ABI from version 4 */
2579         if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION ||
2580             le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) {
2581                 dev_err(tplg->dev,
2582                         "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
2583                         tplg->pass, hdr->abi,
2584                         SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg),
2585                         tplg->fw->size);
2586                 return -EINVAL;
2587         }
2588 
2589         if (hdr->payload_size == 0) {
2590                 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n",
2591                         soc_tplg_get_hdr_offset(tplg));
2592                 return -EINVAL;
2593         }
2594 
2595         if (tplg->pass == le32_to_cpu(hdr->type))
2596                 dev_dbg(tplg->dev,
2597                         "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n",
2598                         hdr->payload_size, hdr->type, hdr->version,
2599                         hdr->vendor_type, tplg->pass);
2600 
2601         return 1;
2602 }
2603 
2604 /* check header type and call appropriate handler */
2605 static int soc_tplg_load_header(struct soc_tplg *tplg,
2606         struct snd_soc_tplg_hdr *hdr)
2607 {
2608         tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
2609 
2610         /* check for matching ID */
2611         if (le32_to_cpu(hdr->index) != tplg->req_index &&
2612                 tplg->req_index != SND_SOC_TPLG_INDEX_ALL)
2613                 return 0;
2614 
2615         tplg->index = le32_to_cpu(hdr->index);
2616 
2617         switch (le32_to_cpu(hdr->type)) {
2618         case SND_SOC_TPLG_TYPE_MIXER:
2619         case SND_SOC_TPLG_TYPE_ENUM:
2620         case SND_SOC_TPLG_TYPE_BYTES:
2621                 return soc_tplg_kcontrol_elems_load(tplg, hdr);
2622         case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
2623                 return soc_tplg_dapm_graph_elems_load(tplg, hdr);
2624         case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
2625                 return soc_tplg_dapm_widget_elems_load(tplg, hdr);
2626         case SND_SOC_TPLG_TYPE_PCM:
2627                 return soc_tplg_pcm_elems_load(tplg, hdr);
2628         case SND_SOC_TPLG_TYPE_DAI:
2629                 return soc_tplg_dai_elems_load(tplg, hdr);
2630         case SND_SOC_TPLG_TYPE_DAI_LINK:
2631         case SND_SOC_TPLG_TYPE_BACKEND_LINK:
2632                 /* physical link configurations */
2633                 return soc_tplg_link_elems_load(tplg, hdr);
2634         case SND_SOC_TPLG_TYPE_MANIFEST:
2635                 return soc_tplg_manifest_load(tplg, hdr);
2636         default:
2637                 /* bespoke vendor data object */
2638                 return soc_tplg_vendor_load(tplg, hdr);
2639         }
2640 
2641         return 0;
2642 }
2643 
2644 /* process the topology file headers */
2645 static int soc_tplg_process_headers(struct soc_tplg *tplg)
2646 {
2647         struct snd_soc_tplg_hdr *hdr;
2648         int ret;
2649 
2650         tplg->pass = SOC_TPLG_PASS_START;
2651 
2652         /* process the header types from start to end */
2653         while (tplg->pass <= SOC_TPLG_PASS_END) {
2654 
2655                 tplg->hdr_pos = tplg->fw->data;
2656                 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2657 
2658                 while (!soc_tplg_is_eof(tplg)) {
2659 
2660                         /* make sure header is valid before loading */
2661                         ret = soc_valid_header(tplg, hdr);
2662                         if (ret < 0)
2663                                 return ret;
2664                         else if (ret == 0)
2665                                 break;
2666 
2667                         /* load the header object */
2668                         ret = soc_tplg_load_header(tplg, hdr);
2669                         if (ret < 0)
2670                                 return ret;
2671 
2672                         /* goto next header */
2673                         tplg->hdr_pos += le32_to_cpu(hdr->payload_size) +
2674                                 sizeof(struct snd_soc_tplg_hdr);
2675                         hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2676                 }
2677 
2678                 /* next data type pass */
2679                 tplg->pass++;
2680         }
2681 
2682         /* signal DAPM we are complete */
2683         ret = soc_tplg_dapm_complete(tplg);
2684         if (ret < 0)
2685                 dev_err(tplg->dev,
2686                         "ASoC: failed to initialise DAPM from Firmware\n");
2687 
2688         return ret;
2689 }
2690 
2691 static int soc_tplg_load(struct soc_tplg *tplg)
2692 {
2693         int ret;
2694 
2695         ret = soc_tplg_process_headers(tplg);
2696         if (ret == 0)
2697                 soc_tplg_complete(tplg);
2698 
2699         return ret;
2700 }
2701 
2702 /* load audio component topology from "firmware" file */
2703 int snd_soc_tplg_component_load(struct snd_soc_component *comp,
2704         struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id)
2705 {
2706         struct soc_tplg tplg;
2707         int ret;
2708 
2709         /* setup parsing context */
2710         memset(&tplg, 0, sizeof(tplg));
2711         tplg.fw = fw;
2712         tplg.dev = comp->dev;
2713         tplg.comp = comp;
2714         tplg.ops = ops;
2715         tplg.req_index = id;
2716         tplg.io_ops = ops->io_ops;
2717         tplg.io_ops_count = ops->io_ops_count;
2718         tplg.bytes_ext_ops = ops->bytes_ext_ops;
2719         tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
2720 
2721         ret = soc_tplg_load(&tplg);
2722         /* free the created components if fail to load topology */
2723         if (ret)
2724                 snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL);
2725 
2726         return ret;
2727 }
2728 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
2729 
2730 /* remove this dynamic widget */
2731 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w)
2732 {
2733         /* make sure we are a widget */
2734         if (w->dobj.type != SND_SOC_DOBJ_WIDGET)
2735                 return;
2736 
2737         remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET);
2738 }
2739 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove);
2740 
2741 /* remove all dynamic widgets from this DAPM context */
2742 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm,
2743         u32 index)
2744 {
2745         struct snd_soc_dapm_widget *w, *next_w;
2746 
2747         list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) {
2748 
2749                 /* make sure we are a widget with correct context */
2750                 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm)
2751                         continue;
2752 
2753                 /* match ID */
2754                 if (w->dobj.index != index &&
2755                         w->dobj.index != SND_SOC_TPLG_INDEX_ALL)
2756                         continue;
2757                 /* check and free and dynamic widget kcontrols */
2758                 snd_soc_tplg_widget_remove(w);
2759                 snd_soc_dapm_free_widget(w);
2760         }
2761         snd_soc_dapm_reset_cache(dapm);
2762 }
2763 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all);
2764 
2765 /* remove dynamic controls from the component driver */
2766 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
2767 {
2768         struct snd_soc_dobj *dobj, *next_dobj;
2769         int pass = SOC_TPLG_PASS_END;
2770 
2771         /* process the header types from end to start */
2772         while (pass >= SOC_TPLG_PASS_START) {
2773 
2774                 /* remove mixer controls */
2775                 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
2776                         list) {
2777 
2778                         /* match index */
2779                         if (dobj->index != index &&
2780                                 index != SND_SOC_TPLG_INDEX_ALL)
2781                                 continue;
2782 
2783                         switch (dobj->type) {
2784                         case SND_SOC_DOBJ_MIXER:
2785                                 remove_mixer(comp, dobj, pass);
2786                                 break;
2787                         case SND_SOC_DOBJ_ENUM:
2788                                 remove_enum(comp, dobj, pass);
2789                                 break;
2790                         case SND_SOC_DOBJ_BYTES:
2791                                 remove_bytes(comp, dobj, pass);
2792                                 break;
2793                         case SND_SOC_DOBJ_GRAPH:
2794                                 remove_route(comp, dobj, pass);
2795                                 break;
2796                         case SND_SOC_DOBJ_WIDGET:
2797                                 remove_widget(comp, dobj, pass);
2798                                 break;
2799                         case SND_SOC_DOBJ_PCM:
2800                                 remove_dai(comp, dobj, pass);
2801                                 break;
2802                         case SND_SOC_DOBJ_DAI_LINK:
2803                                 remove_link(comp, dobj, pass);
2804                                 break;
2805                         case SND_SOC_DOBJ_BACKEND_LINK:
2806                                 /*
2807                                  * call link_unload ops if extra
2808                                  * deinitialization is needed.
2809                                  */
2810                                 remove_backend_link(comp, dobj, pass);
2811                                 break;
2812                         default:
2813                                 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
2814                                         dobj->type);
2815                                 break;
2816                         }
2817                 }
2818                 pass--;
2819         }
2820 
2821         /* let caller know if FW can be freed when no objects are left */
2822         return !list_empty(&comp->dobj_list);
2823 }
2824 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove);
/* [<][>][^][v][top][bottom][index][help] */
root/sound/soc/soc-topology.c

DEFINITIONS
