net/mac80211/driver-ops.h

   1 #ifndef __MAC80211_DRIVER_OPS
   2 #define __MAC80211_DRIVER_OPS
   3
   4 #include <net/mac80211.h>
   5 #include "ieee80211_i.h"
   6 #include "trace.h"
   7
   8 static inline void check_sdata_in_driver(struct ieee80211_sub_if_data *sdata)
   9 {
  10         WARN(!(sdata->flags & IEEE80211_SDATA_IN_DRIVER),
  11              "%s:  Failed check-sdata-in-driver check, flags: 0x%x\n",
  12              sdata->dev->name, sdata->flags);
  13 }
  14
  15 static inline struct ieee80211_sub_if_data *
  16 get_bss_sdata(struct ieee80211_sub_if_data *sdata)
  17 {
  18         if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
  19                 sdata = container_of(sdata->bss, struct ieee80211_sub_if_data,
  20                                      u.ap);
  21
  22         return sdata;
  23 }
  24
  25 static inline void drv_tx(struct ieee80211_local *local, struct sk_buff *skb)
  26 {
  27         local->ops->tx(&local->hw, skb);
  28 }
  29
  30 static inline void drv_get_et_strings(struct ieee80211_sub_if_data *sdata,
  31                                       u32 sset, u8 *data)
  32 {
  33         struct ieee80211_local *local = sdata->local;
  34         if (local->ops->get_et_strings) {
  35                 trace_drv_get_et_strings(local, sset);
  36                 local->ops->get_et_strings(&local->hw, &sdata->vif, sset, data);
  37                 trace_drv_return_void(local);
  38         }
  39 }
  40
  41 static inline void drv_get_et_stats(struct ieee80211_sub_if_data *sdata,
  42                                     struct ethtool_stats *stats,
  43                                     u64 *data)
  44 {
  45         struct ieee80211_local *local = sdata->local;
  46         if (local->ops->get_et_stats) {
  47                 trace_drv_get_et_stats(local);
  48                 local->ops->get_et_stats(&local->hw, &sdata->vif, stats, data);
  49                 trace_drv_return_void(local);
  50         }
  51 }
  52
  53 static inline int drv_get_et_sset_count(struct ieee80211_sub_if_data *sdata,
  54                                         int sset)
  55 {
  56         struct ieee80211_local *local = sdata->local;
  57         int rv = 0;
  58         if (local->ops->get_et_sset_count) {
  59                 trace_drv_get_et_sset_count(local, sset);
  60                 rv = local->ops->get_et_sset_count(&local->hw, &sdata->vif,
  61                                                    sset);
  62                 trace_drv_return_int(local, rv);
  63         }
  64         return rv;
  65 }
  66
  67 static inline int drv_start(struct ieee80211_local *local)
  68 {
  69         int ret;
  70
  71         might_sleep();
  72
  73         trace_drv_start(local);
  74         local->started = true;
  75         smp_mb();
  76         ret = local->ops->start(&local->hw);
  77         trace_drv_return_int(local, ret);
  78         return ret;
  79 }
  80
  81 static inline void drv_stop(struct ieee80211_local *local)
  82 {
  83         might_sleep();
  84
  85         trace_drv_stop(local);
  86         local->ops->stop(&local->hw);
  87         trace_drv_return_void(local);
  88
  89         /* sync away all work on the tasklet before clearing started */
  90         tasklet_disable(&local->tasklet);
  91         tasklet_enable(&local->tasklet);
  92
  93         barrier();
  94
  95         local->started = false;
  96 }
  97
  98 #ifdef CONFIG_PM
  99 static inline int drv_suspend(struct ieee80211_local *local,
 100                               struct cfg80211_wowlan *wowlan)
 101 {
 102         int ret;
 103
 104         might_sleep();
 105
 106         trace_drv_suspend(local);
 107         ret = local->ops->suspend(&local->hw, wowlan);
 108         trace_drv_return_int(local, ret);
 109         return ret;
 110 }
 111
 112 static inline int drv_resume(struct ieee80211_local *local)
 113 {
 114         int ret;
 115
 116         might_sleep();
 117
 118         trace_drv_resume(local);
 119         ret = local->ops->resume(&local->hw);
 120         trace_drv_return_int(local, ret);
 121         return ret;
 122 }
 123
 124 static inline void drv_set_wakeup(struct ieee80211_local *local,
 125                                   bool enabled)
 126 {
 127         might_sleep();
 128
 129         if (!local->ops->set_wakeup)
 130                 return;
 131
 132         trace_drv_set_wakeup(local, enabled);
 133         local->ops->set_wakeup(&local->hw, enabled);
 134         trace_drv_return_void(local);
 135 }
 136 #endif
 137
 138 static inline int drv_add_interface(struct ieee80211_local *local,
 139                                     struct ieee80211_sub_if_data *sdata)
 140 {
 141         int ret;
 142
 143         might_sleep();
 144
 145         if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 146                     (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
 147                      !(local->hw.flags & IEEE80211_HW_WANT_MONITOR_VIF))))
 148                 return -EINVAL;
 149
 150         trace_drv_add_interface(local, sdata);
 151         ret = local->ops->add_interface(&local->hw, &sdata->vif);
 152         trace_drv_return_int(local, ret);
 153
 154         if (ret == 0)
 155                 sdata->flags |= IEEE80211_SDATA_IN_DRIVER;
 156
 157         return ret;
 158 }
 159
 160 static inline int drv_change_interface(struct ieee80211_local *local,
 161                                        struct ieee80211_sub_if_data *sdata,
 162                                        enum nl80211_iftype type, bool p2p)
 163 {
 164         int ret;
 165
 166         might_sleep();
 167
 168         check_sdata_in_driver(sdata);
 169
 170         trace_drv_change_interface(local, sdata, type, p2p);
 171         ret = local->ops->change_interface(&local->hw, &sdata->vif, type, p2p);
 172         trace_drv_return_int(local, ret);
 173         return ret;
 174 }
 175
 176 static inline void drv_remove_interface(struct ieee80211_local *local,
 177                                         struct ieee80211_sub_if_data *sdata)
 178 {
 179         might_sleep();
 180
 181         check_sdata_in_driver(sdata);
 182
 183         trace_drv_remove_interface(local, sdata);
 184         local->ops->remove_interface(&local->hw, &sdata->vif);
 185         sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER;
 186         trace_drv_return_void(local);
 187 }
 188
 189 static inline int drv_config(struct ieee80211_local *local, u32 changed)
 190 {
 191         int ret;
 192
 193         might_sleep();
 194
 195         trace_drv_config(local, changed);
 196         ret = local->ops->config(&local->hw, changed);
 197         trace_drv_return_int(local, ret);
 198         return ret;
 199 }
 200
 201 static inline void drv_bss_info_changed(struct ieee80211_local *local,
 202                                         struct ieee80211_sub_if_data *sdata,
 203                                         struct ieee80211_bss_conf *info,
 204                                         u32 changed)
 205 {
 206         might_sleep();
 207
 208         check_sdata_in_driver(sdata);
 209
 210         trace_drv_bss_info_changed(local, sdata, info, changed);
 211         if (local->ops->bss_info_changed)
 212                 local->ops->bss_info_changed(&local->hw, &sdata->vif, info, changed);
 213         trace_drv_return_void(local);
 214 }
 215
 216 static inline u64 drv_prepare_multicast(struct ieee80211_local *local,
 217                                         struct netdev_hw_addr_list *mc_list)
 218 {
 219         u64 ret = 0;
 220
 221         trace_drv_prepare_multicast(local, mc_list->count);
 222
 223         if (local->ops->prepare_multicast)
 224                 ret = local->ops->prepare_multicast(&local->hw, mc_list);
 225
 226         trace_drv_return_u64(local, ret);
 227
 228         return ret;
 229 }
 230
 231 static inline void drv_configure_filter(struct ieee80211_local *local,
 232                                         unsigned int changed_flags,
 233                                         unsigned int *total_flags,
 234                                         u64 multicast)
 235 {
 236         might_sleep();
 237
 238         trace_drv_configure_filter(local, changed_flags, total_flags,
 239                                    multicast);
 240         local->ops->configure_filter(&local->hw, changed_flags, total_flags,
 241                                      multicast);
 242         trace_drv_return_void(local);
 243 }
 244
 245 static inline int drv_set_tim(struct ieee80211_local *local,
 246                               struct ieee80211_sta *sta, bool set)
 247 {
 248         int ret = 0;
 249         trace_drv_set_tim(local, sta, set);
 250         if (local->ops->set_tim)
 251                 ret = local->ops->set_tim(&local->hw, sta, set);
 252         trace_drv_return_int(local, ret);
 253         return ret;
 254 }
 255
 256 static inline int drv_set_key(struct ieee80211_local *local,
 257                               enum set_key_cmd cmd,
 258                               struct ieee80211_sub_if_data *sdata,
 259                               struct ieee80211_sta *sta,
 260                               struct ieee80211_key_conf *key)
 261 {
 262         int ret;
 263
 264         might_sleep();
 265
 266         sdata = get_bss_sdata(sdata);
 267         check_sdata_in_driver(sdata);
 268
 269         trace_drv_set_key(local, cmd, sdata, sta, key);
 270         ret = local->ops->set_key(&local->hw, cmd, &sdata->vif, sta, key);
 271         trace_drv_return_int(local, ret);
 272         return ret;
 273 }
 274
 275 static inline void drv_update_tkip_key(struct ieee80211_local *local,
 276                                        struct ieee80211_sub_if_data *sdata,
 277                                        struct ieee80211_key_conf *conf,
 278                                        struct sta_info *sta, u32 iv32,
 279                                        u16 *phase1key)
 280 {
 281         struct ieee80211_sta *ista = NULL;
 282
 283         if (sta)
 284                 ista = &sta->sta;
 285
 286         sdata = get_bss_sdata(sdata);
 287         check_sdata_in_driver(sdata);
 288
 289         trace_drv_update_tkip_key(local, sdata, conf, ista, iv32);
 290         if (local->ops->update_tkip_key)
 291                 local->ops->update_tkip_key(&local->hw, &sdata->vif, conf,
 292                                             ista, iv32, phase1key);
 293         trace_drv_return_void(local);
 294 }
 295
 296 static inline int drv_hw_scan(struct ieee80211_local *local,
 297                               struct ieee80211_sub_if_data *sdata,
 298                               struct cfg80211_scan_request *req)
 299 {
 300         int ret;
 301
 302         might_sleep();
 303
 304         check_sdata_in_driver(sdata);
 305
 306         trace_drv_hw_scan(local, sdata);
 307         ret = local->ops->hw_scan(&local->hw, &sdata->vif, req);
 308         trace_drv_return_int(local, ret);
 309         return ret;
 310 }
 311
 312 static inline void drv_cancel_hw_scan(struct ieee80211_local *local,
 313                                       struct ieee80211_sub_if_data *sdata)
 314 {
 315         might_sleep();
 316
 317         check_sdata_in_driver(sdata);
 318
 319         trace_drv_cancel_hw_scan(local, sdata);
 320         local->ops->cancel_hw_scan(&local->hw, &sdata->vif);
 321         trace_drv_return_void(local);
 322 }
 323
 324 static inline int
 325 drv_sched_scan_start(struct ieee80211_local *local,
 326                      struct ieee80211_sub_if_data *sdata,
 327                      struct cfg80211_sched_scan_request *req,
 328                      struct ieee80211_sched_scan_ies *ies)
 329 {
 330         int ret;
 331
 332         might_sleep();
 333
 334         check_sdata_in_driver(sdata);
 335
 336         trace_drv_sched_scan_start(local, sdata);
 337         ret = local->ops->sched_scan_start(&local->hw, &sdata->vif,
 338                                               req, ies);
 339         trace_drv_return_int(local, ret);
 340         return ret;
 341 }
 342
 343 static inline void drv_sched_scan_stop(struct ieee80211_local *local,
 344                                        struct ieee80211_sub_if_data *sdata)
 345 {
 346         might_sleep();
 347
 348         check_sdata_in_driver(sdata);
 349
 350         trace_drv_sched_scan_stop(local, sdata);
 351         local->ops->sched_scan_stop(&local->hw, &sdata->vif);
 352         trace_drv_return_void(local);
 353 }
 354
 355 static inline void drv_sw_scan_start(struct ieee80211_local *local)
 356 {
 357         might_sleep();
 358
 359         trace_drv_sw_scan_start(local);
 360         if (local->ops->sw_scan_start)
 361                 local->ops->sw_scan_start(&local->hw);
 362         trace_drv_return_void(local);
 363 }
 364
 365 static inline void drv_sw_scan_complete(struct ieee80211_local *local)
 366 {
 367         might_sleep();
 368
 369         trace_drv_sw_scan_complete(local);
 370         if (local->ops->sw_scan_complete)
 371                 local->ops->sw_scan_complete(&local->hw);
 372         trace_drv_return_void(local);
 373 }
 374
 375 static inline int drv_get_stats(struct ieee80211_local *local,
 376                                 struct ieee80211_low_level_stats *stats)
 377 {
 378         int ret = -EOPNOTSUPP;
 379
 380         might_sleep();
 381
 382         if (local->ops->get_stats)
 383                 ret = local->ops->get_stats(&local->hw, stats);
 384         trace_drv_get_stats(local, stats, ret);
 385
 386         return ret;
 387 }
 388
 389 static inline void drv_get_tkip_seq(struct ieee80211_local *local,
 390                                     u8 hw_key_idx, u32 *iv32, u16 *iv16)
 391 {
 392         if (local->ops->get_tkip_seq)
 393                 local->ops->get_tkip_seq(&local->hw, hw_key_idx, iv32, iv16);
 394         trace_drv_get_tkip_seq(local, hw_key_idx, iv32, iv16);
 395 }
 396
 397 static inline int drv_set_frag_threshold(struct ieee80211_local *local,
 398                                         u32 value)
 399 {
 400         int ret = 0;
 401
 402         might_sleep();
 403
 404         trace_drv_set_frag_threshold(local, value);
 405         if (local->ops->set_frag_threshold)
 406                 ret = local->ops->set_frag_threshold(&local->hw, value);
 407         trace_drv_return_int(local, ret);
 408         return ret;
 409 }
 410
 411 static inline int drv_set_rts_threshold(struct ieee80211_local *local,
 412                                         u32 value)
 413 {
 414         int ret = 0;
 415
 416         might_sleep();
 417
 418         trace_drv_set_rts_threshold(local, value);
 419         if (local->ops->set_rts_threshold)
 420                 ret = local->ops->set_rts_threshold(&local->hw, value);
 421         trace_drv_return_int(local, ret);
 422         return ret;
 423 }
 424
 425 static inline int drv_set_coverage_class(struct ieee80211_local *local,
 426                                          u8 value)
 427 {
 428         int ret = 0;
 429         might_sleep();
 430
 431         trace_drv_set_coverage_class(local, value);
 432         if (local->ops->set_coverage_class)
 433                 local->ops->set_coverage_class(&local->hw, value);
 434         else
 435                 ret = -EOPNOTSUPP;
 436
 437         trace_drv_return_int(local, ret);
 438         return ret;
 439 }
 440
 441 static inline void drv_sta_notify(struct ieee80211_local *local,
 442                                   struct ieee80211_sub_if_data *sdata,
 443                                   enum sta_notify_cmd cmd,
 444                                   struct ieee80211_sta *sta)
 445 {
 446         sdata = get_bss_sdata(sdata);
 447         check_sdata_in_driver(sdata);
 448
 449         trace_drv_sta_notify(local, sdata, cmd, sta);
 450         if (local->ops->sta_notify)
 451                 local->ops->sta_notify(&local->hw, &sdata->vif, cmd, sta);
 452         trace_drv_return_void(local);
 453 }
 454
 455 static inline int drv_sta_add(struct ieee80211_local *local,
 456                               struct ieee80211_sub_if_data *sdata,
 457                               struct ieee80211_sta *sta)
 458 {
 459         int ret = 0;
 460
 461         might_sleep();
 462
 463         sdata = get_bss_sdata(sdata);
 464         check_sdata_in_driver(sdata);
 465
 466         trace_drv_sta_add(local, sdata, sta);
 467         if (local->ops->sta_add)
 468                 ret = local->ops->sta_add(&local->hw, &sdata->vif, sta);
 469
 470         trace_drv_return_int(local, ret);
 471
 472         return ret;
 473 }
 474
 475 static inline void drv_sta_remove(struct ieee80211_local *local,
 476                                   struct ieee80211_sub_if_data *sdata,
 477                                   struct ieee80211_sta *sta)
 478 {
 479         might_sleep();
 480
 481         sdata = get_bss_sdata(sdata);
 482         check_sdata_in_driver(sdata);
 483
 484         trace_drv_sta_remove(local, sdata, sta);
 485         if (local->ops->sta_remove)
 486                 local->ops->sta_remove(&local->hw, &sdata->vif, sta);
 487
 488         trace_drv_return_void(local);
 489 }
 490
 491 static inline __must_check
 492 int drv_sta_state(struct ieee80211_local *local,
 493                   struct ieee80211_sub_if_data *sdata,
 494                   struct sta_info *sta,
 495                   enum ieee80211_sta_state old_state,
 496                   enum ieee80211_sta_state new_state)
 497 {
 498         int ret = 0;
 499
 500         might_sleep();
 501
 502         sdata = get_bss_sdata(sdata);
 503         check_sdata_in_driver(sdata);
 504
 505         trace_drv_sta_state(local, sdata, &sta->sta, old_state, new_state);
 506         if (local->ops->sta_state) {
 507                 ret = local->ops->sta_state(&local->hw, &sdata->vif, &sta->sta,
 508                                             old_state, new_state);
 509         } else if (old_state == IEEE80211_STA_AUTH &&
 510                    new_state == IEEE80211_STA_ASSOC) {
 511                 ret = drv_sta_add(local, sdata, &sta->sta);
 512                 if (ret == 0)
 513                         sta->uploaded = true;
 514         } else if (old_state == IEEE80211_STA_ASSOC &&
 515                    new_state == IEEE80211_STA_AUTH) {
 516                 drv_sta_remove(local, sdata, &sta->sta);
 517         }
 518         trace_drv_return_int(local, ret);
 519         return ret;
 520 }
 521
 522 static inline void drv_sta_rc_update(struct ieee80211_local *local,
 523                                      struct ieee80211_sub_if_data *sdata,
 524                                      struct ieee80211_sta *sta, u32 changed)
 525 {
 526         sdata = get_bss_sdata(sdata);
 527         check_sdata_in_driver(sdata);
 528
 529         trace_drv_sta_rc_update(local, sdata, sta, changed);
 530         if (local->ops->sta_rc_update)
 531                 local->ops->sta_rc_update(&local->hw, &sdata->vif,
 532                                           sta, changed);
 533
 534         trace_drv_return_void(local);
 535 }
 536
 537 static inline int drv_conf_tx(struct ieee80211_local *local,
 538                               struct ieee80211_sub_if_data *sdata, u16 ac,
 539                               const struct ieee80211_tx_queue_params *params)
 540 {
 541         int ret = -EOPNOTSUPP;
 542
 543         might_sleep();
 544
 545         check_sdata_in_driver(sdata);
 546
 547         trace_drv_conf_tx(local, sdata, ac, params);
 548         if (local->ops->conf_tx)
 549                 ret = local->ops->conf_tx(&local->hw, &sdata->vif,
 550                                           ac, params);
 551         trace_drv_return_int(local, ret);
 552         return ret;
 553 }
 554
 555 static inline u64 drv_get_tsf(struct ieee80211_local *local,
 556                               struct ieee80211_sub_if_data *sdata)
 557 {
 558         u64 ret = -1ULL;
 559
 560         might_sleep();
 561
 562         check_sdata_in_driver(sdata);
 563
 564         trace_drv_get_tsf(local, sdata);
 565         if (local->ops->get_tsf)
 566                 ret = local->ops->get_tsf(&local->hw, &sdata->vif);
 567         trace_drv_return_u64(local, ret);
 568         return ret;
 569 }
 570
 571 static inline void drv_set_tsf(struct ieee80211_local *local,
 572                                struct ieee80211_sub_if_data *sdata,
 573                                u64 tsf)
 574 {
 575         might_sleep();
 576
 577         check_sdata_in_driver(sdata);
 578
 579         trace_drv_set_tsf(local, sdata, tsf);
 580         if (local->ops->set_tsf)
 581                 local->ops->set_tsf(&local->hw, &sdata->vif, tsf);
 582         trace_drv_return_void(local);
 583 }
 584
 585 static inline void drv_reset_tsf(struct ieee80211_local *local,
 586                                  struct ieee80211_sub_if_data *sdata)
 587 {
 588         might_sleep();
 589
 590         check_sdata_in_driver(sdata);
 591
 592         trace_drv_reset_tsf(local, sdata);
 593         if (local->ops->reset_tsf)
 594                 local->ops->reset_tsf(&local->hw, &sdata->vif);
 595         trace_drv_return_void(local);
 596 }
 597
 598 static inline int drv_tx_last_beacon(struct ieee80211_local *local)
 599 {
 600         int ret = 0; /* default unsuported op for less congestion */
 601
 602         might_sleep();
 603
 604         trace_drv_tx_last_beacon(local);
 605         if (local->ops->tx_last_beacon)
 606                 ret = local->ops->tx_last_beacon(&local->hw);
 607         trace_drv_return_int(local, ret);
 608         return ret;
 609 }
 610
 611 static inline int drv_ampdu_action(struct ieee80211_local *local,
 612                                    struct ieee80211_sub_if_data *sdata,
 613                                    enum ieee80211_ampdu_mlme_action action,
 614                                    struct ieee80211_sta *sta, u16 tid,
 615                                    u16 *ssn, u8 buf_size)
 616 {
 617         int ret = -EOPNOTSUPP;
 618
 619         might_sleep();
 620
 621         sdata = get_bss_sdata(sdata);
 622         check_sdata_in_driver(sdata);
 623
 624         trace_drv_ampdu_action(local, sdata, action, sta, tid, ssn, buf_size);
 625
 626         if (local->ops->ampdu_action)
 627                 ret = local->ops->ampdu_action(&local->hw, &sdata->vif, action,
 628                                                sta, tid, ssn, buf_size);
 629
 630         trace_drv_return_int(local, ret);
 631
 632         return ret;
 633 }
 634
 635 static inline int drv_get_survey(struct ieee80211_local *local, int idx,
 636                                 struct survey_info *survey)
 637 {
 638         int ret = -EOPNOTSUPP;
 639
 640         trace_drv_get_survey(local, idx, survey);
 641
 642         if (local->ops->get_survey)
 643                 ret = local->ops->get_survey(&local->hw, idx, survey);
 644
 645         trace_drv_return_int(local, ret);
 646
 647         return ret;
 648 }
 649
 650 static inline void drv_rfkill_poll(struct ieee80211_local *local)
 651 {
 652         might_sleep();
 653
 654         if (local->ops->rfkill_poll)
 655                 local->ops->rfkill_poll(&local->hw);
 656 }
 657
 658 static inline void drv_flush(struct ieee80211_local *local, bool drop)
 659 {
 660         might_sleep();
 661
 662         trace_drv_flush(local, drop);
 663         if (local->ops->flush)
 664                 local->ops->flush(&local->hw, drop);
 665         trace_drv_return_void(local);
 666 }
 667
 668 static inline void drv_channel_switch(struct ieee80211_local *local,
 669                                      struct ieee80211_channel_switch *ch_switch)
 670 {
 671         might_sleep();
 672
 673         trace_drv_channel_switch(local, ch_switch);
 674         local->ops->channel_switch(&local->hw, ch_switch);
 675         trace_drv_return_void(local);
 676 }
 677
 678
 679 static inline int drv_set_antenna(struct ieee80211_local *local,
 680                                   u32 tx_ant, u32 rx_ant)
 681 {
 682         int ret = -EOPNOTSUPP;
 683         might_sleep();
 684         if (local->ops->set_antenna)
 685                 ret = local->ops->set_antenna(&local->hw, tx_ant, rx_ant);
 686         trace_drv_set_antenna(local, tx_ant, rx_ant, ret);
 687         return ret;
 688 }
 689
 690 static inline int drv_get_antenna(struct ieee80211_local *local,
 691                                   u32 *tx_ant, u32 *rx_ant)
 692 {
 693         int ret = -EOPNOTSUPP;
 694         might_sleep();
 695         if (local->ops->get_antenna)
 696                 ret = local->ops->get_antenna(&local->hw, tx_ant, rx_ant);
 697         trace_drv_get_antenna(local, *tx_ant, *rx_ant, ret);
 698         return ret;
 699 }
 700
 701 static inline int drv_remain_on_channel(struct ieee80211_local *local,
 702                                         struct ieee80211_channel *chan,
 703                                         enum nl80211_channel_type chantype,
 704                                         unsigned int duration)
 705 {
 706         int ret;
 707
 708         might_sleep();
 709
 710         trace_drv_remain_on_channel(local, chan, chantype, duration);
 711         ret = local->ops->remain_on_channel(&local->hw, chan, chantype,
 712                                             duration);
 713         trace_drv_return_int(local, ret);
 714
 715         return ret;
 716 }
 717
 718 static inline int drv_cancel_remain_on_channel(struct ieee80211_local *local)
 719 {
 720         int ret;
 721
 722         might_sleep();
 723
 724         trace_drv_cancel_remain_on_channel(local);
 725         ret = local->ops->cancel_remain_on_channel(&local->hw);
 726         trace_drv_return_int(local, ret);
 727
 728         return ret;
 729 }
 730
 731 static inline int drv_set_ringparam(struct ieee80211_local *local,
 732                                     u32 tx, u32 rx)
 733 {
 734         int ret = -ENOTSUPP;
 735
 736         might_sleep();
 737
 738         trace_drv_set_ringparam(local, tx, rx);
 739         if (local->ops->set_ringparam)
 740                 ret = local->ops->set_ringparam(&local->hw, tx, rx);
 741         trace_drv_return_int(local, ret);
 742
 743         return ret;
 744 }
 745
 746 static inline void drv_get_ringparam(struct ieee80211_local *local,
 747                                      u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
 748 {
 749         might_sleep();
 750
 751         trace_drv_get_ringparam(local, tx, tx_max, rx, rx_max);
 752         if (local->ops->get_ringparam)
 753                 local->ops->get_ringparam(&local->hw, tx, tx_max, rx, rx_max);
 754         trace_drv_return_void(local);
 755 }
 756
 757 static inline bool drv_tx_frames_pending(struct ieee80211_local *local)
 758 {
 759         bool ret = false;
 760
 761         might_sleep();
 762
 763         trace_drv_tx_frames_pending(local);
 764         if (local->ops->tx_frames_pending)
 765                 ret = local->ops->tx_frames_pending(&local->hw);
 766         trace_drv_return_bool(local, ret);
 767
 768         return ret;
 769 }
 770
 771 static inline int drv_set_bitrate_mask(struct ieee80211_local *local,
 772                                        struct ieee80211_sub_if_data *sdata,
 773                                        const struct cfg80211_bitrate_mask *mask)
 774 {
 775         int ret = -EOPNOTSUPP;
 776
 777         might_sleep();
 778
 779         check_sdata_in_driver(sdata);
 780
 781         trace_drv_set_bitrate_mask(local, sdata, mask);
 782         if (local->ops->set_bitrate_mask)
 783                 ret = local->ops->set_bitrate_mask(&local->hw,
 784                                                    &sdata->vif, mask);
 785         trace_drv_return_int(local, ret);
 786
 787         return ret;
 788 }
 789
 790 static inline void drv_set_rekey_data(struct ieee80211_local *local,
 791                                       struct ieee80211_sub_if_data *sdata,
 792                                       struct cfg80211_gtk_rekey_data *data)
 793 {
 794         check_sdata_in_driver(sdata);
 795
 796         trace_drv_set_rekey_data(local, sdata, data);
 797         if (local->ops->set_rekey_data)
 798                 local->ops->set_rekey_data(&local->hw, &sdata->vif, data);
 799         trace_drv_return_void(local);
 800 }
 801
 802 static inline void drv_rssi_callback(struct ieee80211_local *local,
 803                                      const enum ieee80211_rssi_event event)
 804 {
 805         trace_drv_rssi_callback(local, event);
 806         if (local->ops->rssi_callback)
 807                 local->ops->rssi_callback(&local->hw, event);
 808         trace_drv_return_void(local);
 809 }
 810
 811 static inline void
 812 drv_release_buffered_frames(struct ieee80211_local *local,
 813                             struct sta_info *sta, u16 tids, int num_frames,
 814                             enum ieee80211_frame_release_type reason,
 815                             bool more_data)
 816 {
 817         trace_drv_release_buffered_frames(local, &sta->sta, tids, num_frames,
 818                                           reason, more_data);
 819         if (local->ops->release_buffered_frames)
 820                 local->ops->release_buffered_frames(&local->hw, &sta->sta, tids,
 821                                                     num_frames, reason,
 822                                                     more_data);
 823         trace_drv_return_void(local);
 824 }
 825
 826 static inline void
 827 drv_allow_buffered_frames(struct ieee80211_local *local,
 828                           struct sta_info *sta, u16 tids, int num_frames,
 829                           enum ieee80211_frame_release_type reason,
 830                           bool more_data)
 831 {
 832         trace_drv_allow_buffered_frames(local, &sta->sta, tids, num_frames,
 833                                         reason, more_data);
 834         if (local->ops->allow_buffered_frames)
 835                 local->ops->allow_buffered_frames(&local->hw, &sta->sta,
 836                                                   tids, num_frames, reason,
 837                                                   more_data);
 838         trace_drv_return_void(local);
 839 }
 840
 841 static inline int drv_get_rssi(struct ieee80211_local *local,
 842                                 struct ieee80211_sub_if_data *sdata,
 843                                 struct ieee80211_sta *sta,
 844                                 s8 *rssi_dbm)
 845 {
 846         int ret;
 847
 848         might_sleep();
 849
 850         ret = local->ops->get_rssi(&local->hw, &sdata->vif, sta, rssi_dbm);
 851         trace_drv_get_rssi(local, sta, *rssi_dbm, ret);
 852
 853         return ret;
 854 }
 855
 856 static inline void drv_mgd_prepare_tx(struct ieee80211_local *local,
 857                                       struct ieee80211_sub_if_data *sdata)
 858 {
 859         might_sleep();
 860
 861         check_sdata_in_driver(sdata);
 862         WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION);
 863
 864         trace_drv_mgd_prepare_tx(local, sdata);
 865         if (local->ops->mgd_prepare_tx)
 866                 local->ops->mgd_prepare_tx(&local->hw, &sdata->vif);
 867         trace_drv_return_void(local);
 868 }
 869 #endif /* __MAC80211_DRIVER_OPS */