drivers/staging/brcm80211/brcmsmac/wl_mac80211.c

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #define __UNDEF_NO_VERSION__
  18
  19 #include <linux/kernel.h>
  20 #include <linux/etherdevice.h>
  21 #include <linux/string.h>
  22 #include <linux/pci_ids.h>
  23 #include <bcmdefs.h>
  24 #include <linux/module.h>
  25 #include <linux/pci.h>
  26 #include <linux/sched.h>
  27 #include <osl.h>
  28 #define WLC_MAXBSSCFG           1       /* single BSS configs */
  29
  30 #include <wlc_cfg.h>
  31 #include <net/mac80211.h>
  32 #include <phy_version.h>
  33 #include <bcmutils.h>
  34 #include <pcicfg.h>
  35 #include <wlioctl.h>
  36 #include <wlc_key.h>
  37 #include <sbhndpio.h>
  38 #include <sbhnddma.h>
  39 #include <wlc_channel.h>
  40 #include <wlc_pub.h>
  41 #include <wlc_scb.h>
  42 #include <wl_dbg.h>
  43 #include <wl_export.h>
  44
  45 #include <wl_mac80211.h>
  46 #include <linux/firmware.h>
  47 #include <wl_ucode.h>
  48 #include <d11ucode_ext.h>
  49
  50
  51 static void wl_timer(unsigned long data);
  52 static void _wl_timer(wl_timer_t *t);
  53
  54
  55 static int ieee_hw_init(struct ieee80211_hw *hw);
  56 static int ieee_hw_rate_init(struct ieee80211_hw *hw);
  57
  58 static int wl_linux_watchdog(void *ctx);
  59
  60 /* Flags we support */
  61 #define MAC_FILTERS (FIF_PROMISC_IN_BSS | \
  62         FIF_ALLMULTI | \
  63         FIF_FCSFAIL | \
  64         FIF_PLCPFAIL | \
  65         FIF_CONTROL | \
  66         FIF_OTHER_BSS | \
  67         FIF_BCN_PRBRESP_PROMISC)
  68
  69 static int wl_found;
  70
  71 #define WL_DEV_IF(dev)          ((struct wl_if *)netdev_priv(dev))
  72 #define WL_INFO(dev)            ((struct wl_info *)(WL_DEV_IF(dev)->wl))
  73 static int wl_request_fw(struct wl_info *wl, struct pci_dev *pdev);
  74 static void wl_release_fw(struct wl_info *wl);
  75
  76 /* local prototypes */
  77 static int wl_start(struct sk_buff *skb, struct wl_info *wl);
  78 static int wl_start_int(struct wl_info *wl, struct ieee80211_hw *hw,
  79                         struct sk_buff *skb);
  80 static void wl_dpc(unsigned long data);
  81
  82 MODULE_AUTHOR("Broadcom Corporation");
  83 MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver.");
  84 MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards");
  85 MODULE_LICENSE("Dual BSD/GPL");
  86
  87 /* recognized PCI IDs */
  88 static struct pci_device_id wl_id_table[] = {
  89         {PCI_VENDOR_ID_BROADCOM, 0x4357, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},      /* 43225 2G */
  90         {PCI_VENDOR_ID_BROADCOM, 0x4353, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},      /* 43224 DUAL */
  91         {PCI_VENDOR_ID_BROADCOM, 0x4727, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},      /* 4313 DUAL */
  92         {0}
  93 };
  94
  95 MODULE_DEVICE_TABLE(pci, wl_id_table);
  96 static void wl_remove(struct pci_dev *pdev);
  97
  98
  99 #ifdef BCMDBG
 100 static int msglevel = 0xdeadbeef;
 101 module_param(msglevel, int, 0);
 102 static int phymsglevel = 0xdeadbeef;
 103 module_param(phymsglevel, int, 0);
 104 #endif                          /* BCMDBG */
 105
 106 #define HW_TO_WL(hw)     (hw->priv)
 107 #define WL_TO_HW(wl)      (wl->pub->ieee_hw)
 108 static int wl_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
 109 static int wl_ops_start(struct ieee80211_hw *hw);
 110 static void wl_ops_stop(struct ieee80211_hw *hw);
 111 static int wl_ops_add_interface(struct ieee80211_hw *hw,
 112                                 struct ieee80211_vif *vif);
 113 static void wl_ops_remove_interface(struct ieee80211_hw *hw,
 114                                     struct ieee80211_vif *vif);
 115 static int wl_ops_config(struct ieee80211_hw *hw, u32 changed);
 116 static void wl_ops_bss_info_changed(struct ieee80211_hw *hw,
 117                                     struct ieee80211_vif *vif,
 118                                     struct ieee80211_bss_conf *info,
 119                                     u32 changed);
 120 static void wl_ops_configure_filter(struct ieee80211_hw *hw,
 121                                     unsigned int changed_flags,
 122                                     unsigned int *total_flags, u64 multicast);
 123 static int wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
 124                           bool set);
 125 static void wl_ops_sw_scan_start(struct ieee80211_hw *hw);
 126 static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw);
 127 static void wl_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf);
 128 static int wl_ops_get_stats(struct ieee80211_hw *hw,
 129                             struct ieee80211_low_level_stats *stats);
 130 static int wl_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
 131 static void wl_ops_sta_notify(struct ieee80211_hw *hw,
 132                               struct ieee80211_vif *vif,
 133                               enum sta_notify_cmd cmd,
 134                               struct ieee80211_sta *sta);
 135 static int wl_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
 136                           const struct ieee80211_tx_queue_params *params);
 137 static u64 wl_ops_get_tsf(struct ieee80211_hw *hw);
 138 static int wl_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 139                       struct ieee80211_sta *sta);
 140 static int wl_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 141                          struct ieee80211_sta *sta);
 142 static int wl_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 143                            enum ieee80211_ampdu_mlme_action action,
 144                            struct ieee80211_sta *sta, u16 tid, u16 *ssn);
 145 static void wl_ops_rfkill_poll(struct ieee80211_hw *hw);
 146
 147 static int wl_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 148 {
 149         int status;
 150         struct wl_info *wl = hw->priv;
 151         WL_LOCK(wl);
 152         if (!wl->pub->up) {
 153                 WL_ERROR("ops->tx called while down\n");
 154                 status = -ENETDOWN;
 155                 goto done;
 156         }
 157         status = wl_start(skb, wl);
 158  done:
 159         WL_UNLOCK(wl);
 160         return status;
 161 }
 162
 163 static int wl_ops_start(struct ieee80211_hw *hw)
 164 {
 165         struct wl_info *wl = hw->priv;
 166         bool blocked;
 167         /*
 168           struct ieee80211_channel *curchan = hw->conf.channel;
 169           WL_NONE("%s : Initial channel: %d\n", __func__, curchan->hw_value);
 170         */
 171
 172         WL_LOCK(wl);
 173         ieee80211_wake_queues(hw);
 174         WL_UNLOCK(wl);
 175         blocked = wl_rfkill_set_hw_state(wl);
 176         if (!blocked)
 177                 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
 178
 179         return 0;
 180 }
 181
 182 static void wl_ops_stop(struct ieee80211_hw *hw)
 183 {
 184         struct wl_info *wl = hw->priv;
 185         ASSERT(wl);
 186         WL_LOCK(wl);
 187         ieee80211_stop_queues(hw);
 188         WL_UNLOCK(wl);
 189 }
 190
 191 static int
 192 wl_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 193 {
 194         struct wl_info *wl;
 195         int err;
 196
 197         /* Just STA for now */
 198         if (vif->type != NL80211_IFTYPE_AP &&
 199             vif->type != NL80211_IFTYPE_MESH_POINT &&
 200             vif->type != NL80211_IFTYPE_STATION &&
 201             vif->type != NL80211_IFTYPE_WDS &&
 202             vif->type != NL80211_IFTYPE_ADHOC) {
 203                 WL_ERROR("%s: Attempt to add type %d, only STA for now\n",
 204                          __func__, vif->type);
 205                 return -EOPNOTSUPP;
 206         }
 207
 208         wl = HW_TO_WL(hw);
 209         WL_LOCK(wl);
 210         err = wl_up(wl);
 211         WL_UNLOCK(wl);
 212
 213         if (err != 0) {
 214                 WL_ERROR("%s: wl_up() returned %d\n", __func__, err);
 215         }
 216         return err;
 217 }
 218
 219 static void
 220 wl_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 221 {
 222         struct wl_info *wl;
 223
 224         wl = HW_TO_WL(hw);
 225
 226         /* put driver in down state */
 227         WL_LOCK(wl);
 228         wl_down(wl);
 229         WL_UNLOCK(wl);
 230 }
 231
 232 static int
 233 ieee_set_channel(struct ieee80211_hw *hw, struct ieee80211_channel *chan,
 234                  enum nl80211_channel_type type)
 235 {
 236         struct wl_info *wl = HW_TO_WL(hw);
 237         int err = 0;
 238
 239         switch (type) {
 240         case NL80211_CHAN_HT20:
 241         case NL80211_CHAN_NO_HT:
 242                 WL_LOCK(wl);
 243                 err = wlc_set(wl->wlc, WLC_SET_CHANNEL, chan->hw_value);
 244                 WL_UNLOCK(wl);
 245                 break;
 246         case NL80211_CHAN_HT40MINUS:
 247         case NL80211_CHAN_HT40PLUS:
 248                 WL_ERROR("%s: Need to implement 40 Mhz Channels!\n", __func__);
 249                 break;
 250         }
 251
 252         if (err)
 253                 return -EIO;
 254         return err;
 255 }
 256
 257 static int wl_ops_config(struct ieee80211_hw *hw, u32 changed)
 258 {
 259         struct ieee80211_conf *conf = &hw->conf;
 260         struct wl_info *wl = HW_TO_WL(hw);
 261         int err = 0;
 262         int new_int;
 263
 264         if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
 265                 WL_NONE("%s: Setting listen interval to %d\n",
 266                         __func__, conf->listen_interval);
 267                 if (wlc_iovar_setint
 268                     (wl->wlc, "bcn_li_bcn", conf->listen_interval)) {
 269                         WL_ERROR("%s: Error setting listen_interval\n",
 270                                  __func__);
 271                         err = -EIO;
 272                         goto config_out;
 273                 }
 274                 wlc_iovar_getint(wl->wlc, "bcn_li_bcn", &new_int);
 275                 ASSERT(new_int == conf->listen_interval);
 276         }
 277         if (changed & IEEE80211_CONF_CHANGE_MONITOR)
 278                 WL_NONE("Need to set monitor mode\n");
 279         if (changed & IEEE80211_CONF_CHANGE_PS)
 280                 WL_NONE("Need to set Power-save mode\n");
 281
 282         if (changed & IEEE80211_CONF_CHANGE_POWER) {
 283                 WL_NONE("%s: Setting tx power to %d dbm\n",
 284                         __func__, conf->power_level);
 285                 if (wlc_iovar_setint
 286                     (wl->wlc, "qtxpower", conf->power_level * 4)) {
 287                         WL_ERROR("%s: Error setting power_level\n", __func__);
 288                         err = -EIO;
 289                         goto config_out;
 290                 }
 291                 wlc_iovar_getint(wl->wlc, "qtxpower", &new_int);
 292                 if (new_int != (conf->power_level * 4))
 293                         WL_ERROR("%s: Power level req != actual, %d %d\n",
 294                                  __func__, conf->power_level * 4, new_int);
 295         }
 296         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 297                 err = ieee_set_channel(hw, conf->channel, conf->channel_type);
 298         }
 299         if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
 300                 WL_NONE("%s: srl %d, lrl %d\n",
 301                         __func__,
 302                         conf->short_frame_max_tx_count,
 303                         conf->long_frame_max_tx_count);
 304                 if (wlc_set
 305                     (wl->wlc, WLC_SET_SRL,
 306                      conf->short_frame_max_tx_count) < 0) {
 307                         WL_ERROR("%s: Error setting srl\n", __func__);
 308                         err = -EIO;
 309                         goto config_out;
 310                 }
 311                 if (wlc_set(wl->wlc, WLC_SET_LRL, conf->long_frame_max_tx_count)
 312                     < 0) {
 313                         WL_ERROR("%s: Error setting lrl\n", __func__);
 314                         err = -EIO;
 315                         goto config_out;
 316                 }
 317         }
 318
 319  config_out:
 320         return err;
 321 }
 322
 323 static void
 324 wl_ops_bss_info_changed(struct ieee80211_hw *hw,
 325                         struct ieee80211_vif *vif,
 326                         struct ieee80211_bss_conf *info, u32 changed)
 327 {
 328         struct wl_info *wl = HW_TO_WL(hw);
 329         int val;
 330
 331
 332         if (changed & BSS_CHANGED_ASSOC) {
 333                 WL_ERROR("Associated:\t%s\n", info->assoc ? "True" : "False");
 334                 /* association status changed (associated/disassociated)
 335                  * also implies a change in the AID.
 336                  */
 337         }
 338         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 339                 WL_NONE("Use_cts_prot:\t%s Implement me\n",
 340                         info->use_cts_prot ? "True" : "False");
 341                 /* CTS protection changed */
 342         }
 343         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 344                 WL_NONE("Short preamble:\t%s Implement me\n",
 345                         info->use_short_preamble ? "True" : "False");
 346                 /* preamble changed */
 347         }
 348         if (changed & BSS_CHANGED_ERP_SLOT) {
 349                 WL_NONE("Changing short slot:\t%s\n",
 350                         info->use_short_slot ? "True" : "False");
 351                 if (info->use_short_slot)
 352                         val = 1;
 353                 else
 354                         val = 0;
 355                 wlc_set(wl->wlc, WLC_SET_SHORTSLOT_OVERRIDE, val);
 356                 /* slot timing changed */
 357         }
 358
 359         if (changed & BSS_CHANGED_HT) {
 360                 WL_NONE("%s: HT mode - Implement me\n", __func__);
 361                 /* 802.11n parameters changed */
 362         }
 363         if (changed & BSS_CHANGED_BASIC_RATES) {
 364                 WL_NONE("Need to change Basic Rates:\t0x%x! Implement me\n",
 365                         (u32) info->basic_rates);
 366                 /* Basic rateset changed */
 367         }
 368         if (changed & BSS_CHANGED_BEACON_INT) {
 369                 WL_NONE("Beacon Interval:\t%d Implement me\n",
 370                         info->beacon_int);
 371                 /* Beacon interval changed */
 372         }
 373         if (changed & BSS_CHANGED_BSSID) {
 374                 WL_NONE("new BSSID:\taid %d  bss:%pM\n",
 375                         info->aid, info->bssid);
 376                 /* BSSID changed, for whatever reason (IBSS and managed mode) */
 377                 /* FIXME: need to store bssid in bsscfg */
 378                 wlc_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET,
 379                                   info->bssid);
 380         }
 381         if (changed & BSS_CHANGED_BEACON) {
 382                 WL_ERROR("BSS_CHANGED_BEACON\n");
 383                 /* Beacon data changed, retrieve new beacon (beaconing modes) */
 384         }
 385         if (changed & BSS_CHANGED_BEACON_ENABLED) {
 386                 WL_ERROR("Beacon enabled:\t%s\n",
 387                          info->enable_beacon ? "True" : "False");
 388                 /* Beaconing should be enabled/disabled (beaconing modes) */
 389         }
 390         return;
 391 }
 392
 393 static void
 394 wl_ops_configure_filter(struct ieee80211_hw *hw,
 395                         unsigned int changed_flags,
 396                         unsigned int *total_flags, u64 multicast)
 397 {
 398         struct wl_info *wl = hw->priv;
 399
 400         changed_flags &= MAC_FILTERS;
 401         *total_flags &= MAC_FILTERS;
 402         if (changed_flags & FIF_PROMISC_IN_BSS)
 403                 WL_ERROR("FIF_PROMISC_IN_BSS\n");
 404         if (changed_flags & FIF_ALLMULTI)
 405                 WL_ERROR("FIF_ALLMULTI\n");
 406         if (changed_flags & FIF_FCSFAIL)
 407                 WL_ERROR("FIF_FCSFAIL\n");
 408         if (changed_flags & FIF_PLCPFAIL)
 409                 WL_ERROR("FIF_PLCPFAIL\n");
 410         if (changed_flags & FIF_CONTROL)
 411                 WL_ERROR("FIF_CONTROL\n");
 412         if (changed_flags & FIF_OTHER_BSS)
 413                 WL_ERROR("FIF_OTHER_BSS\n");
 414         if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
 415                 WL_NONE("FIF_BCN_PRBRESP_PROMISC\n");
 416                 WL_LOCK(wl);
 417                 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
 418                         wl->pub->mac80211_state |= MAC80211_PROMISC_BCNS;
 419                         wlc_mac_bcn_promisc_change(wl->wlc, 1);
 420                 } else {
 421                         wlc_mac_bcn_promisc_change(wl->wlc, 0);
 422                         wl->pub->mac80211_state &= ~MAC80211_PROMISC_BCNS;
 423                 }
 424                 WL_UNLOCK(wl);
 425         }
 426         return;
 427 }
 428
 429 static int
 430 wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
 431 {
 432         WL_ERROR("%s: Enter\n", __func__);
 433         return 0;
 434 }
 435
 436 static void wl_ops_sw_scan_start(struct ieee80211_hw *hw)
 437 {
 438         WL_NONE("Scan Start\n");
 439         return;
 440 }
 441
 442 static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw)
 443 {
 444         WL_NONE("Scan Complete\n");
 445         return;
 446 }
 447
 448 static void wl_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf)
 449 {
 450         WL_ERROR("%s: Enter\n", __func__);
 451         return;
 452 }
 453
 454 static int
 455 wl_ops_get_stats(struct ieee80211_hw *hw,
 456                  struct ieee80211_low_level_stats *stats)
 457 {
 458         WL_ERROR("%s: Enter\n", __func__);
 459         return 0;
 460 }
 461
 462 static int wl_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
 463 {
 464         WL_ERROR("%s: Enter\n", __func__);
 465         return 0;
 466 }
 467
 468 static void
 469 wl_ops_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 470                   enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
 471 {
 472         WL_NONE("%s: Enter\n", __func__);
 473         switch (cmd) {
 474         default:
 475                 WL_ERROR("%s: Unknown cmd = %d\n", __func__, cmd);
 476                 break;
 477         }
 478         return;
 479 }
 480
 481 static int
 482 wl_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
 483                const struct ieee80211_tx_queue_params *params)
 484 {
 485         struct wl_info *wl = hw->priv;
 486
 487         WL_NONE("%s: Enter (WME config)\n", __func__);
 488         WL_NONE("queue %d, txop %d, cwmin %d, cwmax %d, aifs %d\n", queue,
 489                  params->txop, params->cw_min, params->cw_max, params->aifs);
 490
 491         WL_LOCK(wl);
 492         wlc_wme_setparams(wl->wlc, queue, (void *)params, true);
 493         WL_UNLOCK(wl);
 494
 495         return 0;
 496 }
 497
 498 static u64 wl_ops_get_tsf(struct ieee80211_hw *hw)
 499 {
 500         WL_ERROR("%s: Enter\n", __func__);
 501         return 0;
 502 }
 503
 504 static int
 505 wl_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 506            struct ieee80211_sta *sta)
 507 {
 508         struct scb *scb;
 509
 510         int i;
 511         struct wl_info *wl = hw->priv;
 512
 513         /* Init the scb */
 514         scb = (struct scb *)sta->drv_priv;
 515         memset(scb, 0, sizeof(struct scb));
 516         for (i = 0; i < NUMPRIO; i++)
 517                 scb->seqctl[i] = 0xFFFF;
 518         scb->seqctl_nonqos = 0xFFFF;
 519         scb->magic = SCB_MAGIC;
 520
 521         wl->pub->global_scb = scb;
 522         wl->pub->global_ampdu = &(scb->scb_ampdu);
 523         wl->pub->global_ampdu->scb = scb;
 524         wl->pub->global_ampdu->max_pdu = 16;
 525         pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID,
 526                   AMPDU_MAX_SCB_TID * PKTQ_LEN_DEFAULT);
 527
 528         sta->ht_cap.ht_supported = true;
 529         sta->ht_cap.ampdu_factor = AMPDU_RX_FACTOR_64K;
 530         sta->ht_cap.ampdu_density = AMPDU_DEF_MPDU_DENSITY;
 531         sta->ht_cap.cap = IEEE80211_HT_CAP_GRN_FLD |
 532             IEEE80211_HT_CAP_SGI_20 |
 533             IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT;
 534
 535         /* minstrel_ht initiates addBA on our behalf by calling ieee80211_start_tx_ba_session() */
 536         return 0;
 537 }
 538
 539 static int
 540 wl_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 541               struct ieee80211_sta *sta)
 542 {
 543         WL_NONE("%s: Enter\n", __func__);
 544         return 0;
 545 }
 546
 547 static int
 548 wl_ampdu_action(struct ieee80211_hw *hw,
 549                 struct ieee80211_vif *vif,
 550                 enum ieee80211_ampdu_mlme_action action,
 551                 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
 552 {
 553 #if defined(BCMDBG)
 554         struct scb *scb = (struct scb *)sta->drv_priv;
 555 #endif
 556         struct wl_info *wl = hw->priv;
 557
 558         ASSERT(scb->magic == SCB_MAGIC);
 559         switch (action) {
 560         case IEEE80211_AMPDU_RX_START:
 561                 WL_NONE("%s: action = IEEE80211_AMPDU_RX_START\n", __func__);
 562                 break;
 563         case IEEE80211_AMPDU_RX_STOP:
 564                 WL_NONE("%s: action = IEEE80211_AMPDU_RX_STOP\n", __func__);
 565                 break;
 566         case IEEE80211_AMPDU_TX_START:
 567                 if (!wlc_aggregatable(wl->wlc, tid)) {
 568                         /* WL_ERROR("START: tid %d is not agg' able, return FAILURE to stack\n", tid); */
 569                         return -1;
 570                 }
 571                 /* XXX: Use the starting sequence number provided ... */
 572                 *ssn = 0;
 573                 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 574                 break;
 575
 576         case IEEE80211_AMPDU_TX_STOP:
 577                 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 578                 break;
 579         case IEEE80211_AMPDU_TX_OPERATIONAL:
 580                 /* Not sure what to do here */
 581                 /* Power save wakeup */
 582                 WL_NONE("%s: action = IEEE80211_AMPDU_TX_OPERATIONAL\n",
 583                         __func__);
 584                 break;
 585         default:
 586                 WL_ERROR("%s: Invalid command, ignoring\n", __func__);
 587         }
 588
 589         return 0;
 590 }
 591
 592 static void wl_ops_rfkill_poll(struct ieee80211_hw *hw)
 593 {
 594         struct wl_info *wl = HW_TO_WL(hw);
 595         bool blocked;
 596
 597         WL_LOCK(wl);
 598         blocked = wlc_check_radio_disabled(wl->wlc);
 599         WL_UNLOCK(wl);
 600
 601         WL_ERROR("wl: rfkill_poll: %d\n", blocked);
 602         wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
 603 }
 604
 605 static const struct ieee80211_ops wl_ops = {
 606         .tx = wl_ops_tx,
 607         .start = wl_ops_start,
 608         .stop = wl_ops_stop,
 609         .add_interface = wl_ops_add_interface,
 610         .remove_interface = wl_ops_remove_interface,
 611         .config = wl_ops_config,
 612         .bss_info_changed = wl_ops_bss_info_changed,
 613         .configure_filter = wl_ops_configure_filter,
 614         .set_tim = wl_ops_set_tim,
 615         .sw_scan_start = wl_ops_sw_scan_start,
 616         .sw_scan_complete = wl_ops_sw_scan_complete,
 617         .set_tsf = wl_ops_set_tsf,
 618         .get_stats = wl_ops_get_stats,
 619         .set_rts_threshold = wl_ops_set_rts_threshold,
 620         .sta_notify = wl_ops_sta_notify,
 621         .conf_tx = wl_ops_conf_tx,
 622         .get_tsf = wl_ops_get_tsf,
 623         .sta_add = wl_sta_add,
 624         .sta_remove = wl_sta_remove,
 625         .ampdu_action = wl_ampdu_action,
 626         .rfkill_poll = wl_ops_rfkill_poll,
 627 };
 628
 629 static int wl_set_hint(struct wl_info *wl, char *abbrev)
 630 {
 631         WL_ERROR("%s: Sending country code %c%c to MAC80211\n",
 632                  __func__, abbrev[0], abbrev[1]);
 633         return regulatory_hint(wl->pub->ieee_hw->wiphy, abbrev);
 634 }
 635
 636 /**
 637  * attach to the WL device.
 638  *
 639  * Attach to the WL device identified by vendor and device parameters.
 640  * regs is a host accessible memory address pointing to WL device registers.
 641  *
 642  * wl_attach is not defined as static because in the case where no bus
 643  * is defined, wl_attach will never be called, and thus, gcc will issue
 644  * a warning that this function is defined but not used if we declare
 645  * it as static.
 646  */
 647 static struct wl_info *wl_attach(u16 vendor, u16 device, unsigned long regs,
 648                             uint bustype, void *btparam, uint irq)
 649 {
 650         struct wl_info *wl;
 651         struct osl_info *osh;
 652         int unit, err;
 653
 654         unsigned long base_addr;
 655         struct ieee80211_hw *hw;
 656         u8 perm[ETH_ALEN];
 657
 658         unit = wl_found;
 659         err = 0;
 660
 661         if (unit < 0) {
 662                 WL_ERROR("wl%d: unit number overflow, exiting\n", unit);
 663                 return NULL;
 664         }
 665
 666         osh = osl_attach(btparam, bustype);
 667         ASSERT(osh);
 668
 669         /* allocate private info */
 670         hw = pci_get_drvdata(btparam);  /* btparam == pdev */
 671         wl = hw->priv;
 672         ASSERT(wl);
 673
 674         wl->osh = osh;
 675         atomic_set(&wl->callbacks, 0);
 676
 677         /* setup the bottom half handler */
 678         tasklet_init(&wl->tasklet, wl_dpc, (unsigned long) wl);
 679
 680
 681
 682         base_addr = regs;
 683
 684         if (bustype == PCI_BUS) {
 685                 wl->piomode = false;
 686         } else if (bustype == RPC_BUS) {
 687                 /* Do nothing */
 688         } else {
 689                 bustype = PCI_BUS;
 690                 WL_TRACE("force to PCI\n");
 691         }
 692         wl->bcm_bustype = bustype;
 693
 694         wl->regsva = ioremap_nocache(base_addr, PCI_BAR0_WINSZ);
 695         if (wl->regsva == NULL) {
 696                 WL_ERROR("wl%d: ioremap() failed\n", unit);
 697                 goto fail;
 698         }
 699         spin_lock_init(&wl->lock);
 700         spin_lock_init(&wl->isr_lock);
 701
 702         /* prepare ucode */
 703         if (wl_request_fw(wl, (struct pci_dev *)btparam)) {
 704                 printf("%s: Failed to find firmware usually in %s\n",
 705                         KBUILD_MODNAME, "/lib/firmware/brcm");
 706                 wl_release_fw(wl);
 707                 wl_remove((struct pci_dev *)btparam);
 708                 goto fail1;
 709         }
 710
 711         /* common load-time initialization */
 712         wl->wlc = wlc_attach((void *)wl, vendor, device, unit, wl->piomode, osh,
 713                              wl->regsva, wl->bcm_bustype, btparam, &err);
 714         wl_release_fw(wl);
 715         if (!wl->wlc) {
 716                 printf("%s: wlc_attach() failed with code %d\n",
 717                         KBUILD_MODNAME, err);
 718                 goto fail;
 719         }
 720         wl->pub = wlc_pub(wl->wlc);
 721
 722         wl->pub->ieee_hw = hw;
 723         ASSERT(wl->pub->ieee_hw);
 724         ASSERT(wl->pub->ieee_hw->priv == wl);
 725
 726
 727         if (wlc_iovar_setint(wl->wlc, "mpc", 0)) {
 728                 WL_ERROR("wl%d: Error setting MPC variable to 0\n", unit);
 729         }
 730
 731         /* register our interrupt handler */
 732         if (request_irq(irq, wl_isr, IRQF_SHARED, KBUILD_MODNAME, wl)) {
 733                 WL_ERROR("wl%d: request_irq() failed\n", unit);
 734                 goto fail;
 735         }
 736         wl->irq = irq;
 737
 738         /* register module */
 739         wlc_module_register(wl->pub, NULL, "linux", wl, NULL, wl_linux_watchdog,
 740                             NULL);
 741
 742         if (ieee_hw_init(hw)) {
 743                 WL_ERROR("wl%d: %s: ieee_hw_init failed!\n", unit, __func__);
 744                 goto fail;
 745         }
 746
 747         bcopy(&wl->pub->cur_etheraddr, perm, ETH_ALEN);
 748         ASSERT(is_valid_ether_addr(perm));
 749         SET_IEEE80211_PERM_ADDR(hw, perm);
 750
 751         err = ieee80211_register_hw(hw);
 752         if (err) {
 753                 WL_ERROR("%s: ieee80211_register_hw failed, status %d\n",
 754                          __func__, err);
 755         }
 756
 757         if (wl->pub->srom_ccode[0])
 758                 err = wl_set_hint(wl, wl->pub->srom_ccode);
 759         else
 760                 err = wl_set_hint(wl, "US");
 761         if (err) {
 762                 WL_ERROR("%s: regulatory_hint failed, status %d\n",
 763                          __func__, err);
 764         }
 765         WL_ERROR("wl%d: Broadcom BCM43xx 802.11 MAC80211 Driver (" PHY_VERSION_STR ")",
 766                  unit);
 767
 768 #ifdef BCMDBG
 769         printf(" (Compiled at " __TIME__ " on " __DATE__ ")");
 770 #endif                          /* BCMDBG */
 771         printf("\n");
 772
 773         wl_found++;
 774         return wl;
 775
 776 fail:
 777         wl_free(wl);
 778 fail1:
 779         return NULL;
 780 }
 781
 782
 783
 784 #define CHAN2GHZ(channel, freqency, chflags)  { \
 785         .band = IEEE80211_BAND_2GHZ, \
 786         .center_freq = (freqency), \
 787         .hw_value = (channel), \
 788         .flags = chflags, \
 789         .max_antenna_gain = 0, \
 790         .max_power = 19, \
 791 }
 792
 793 static struct ieee80211_channel wl_2ghz_chantable[] = {
 794         CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
 795         CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
 796         CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
 797         CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
 798         CHAN2GHZ(5, 2432, 0),
 799         CHAN2GHZ(6, 2437, 0),
 800         CHAN2GHZ(7, 2442, 0),
 801         CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
 802         CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
 803         CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
 804         CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
 805         CHAN2GHZ(12, 2467,
 806                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
 807                  IEEE80211_CHAN_NO_HT40PLUS),
 808         CHAN2GHZ(13, 2472,
 809                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
 810                  IEEE80211_CHAN_NO_HT40PLUS),
 811         CHAN2GHZ(14, 2484,
 812                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
 813                  IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
 814 };
 815
 816 #define CHAN5GHZ(channel, chflags)  { \
 817         .band = IEEE80211_BAND_5GHZ, \
 818         .center_freq = 5000 + 5*(channel), \
 819         .hw_value = (channel), \
 820         .flags = chflags, \
 821         .max_antenna_gain = 0, \
 822         .max_power = 21, \
 823 }
 824
 825 static struct ieee80211_channel wl_5ghz_nphy_chantable[] = {
 826         /* UNII-1 */
 827         CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
 828         CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
 829         CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
 830         CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
 831         /* UNII-2 */
 832         CHAN5GHZ(52,
 833                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 834                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 835         CHAN5GHZ(56,
 836                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 837                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 838         CHAN5GHZ(60,
 839                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 840                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 841         CHAN5GHZ(64,
 842                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 843                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 844         /* MID */
 845         CHAN5GHZ(100,
 846                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 847                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 848         CHAN5GHZ(104,
 849                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 850                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 851         CHAN5GHZ(108,
 852                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 853                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 854         CHAN5GHZ(112,
 855                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 856                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 857         CHAN5GHZ(116,
 858                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 859                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 860         CHAN5GHZ(120,
 861                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 862                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 863         CHAN5GHZ(124,
 864                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 865                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 866         CHAN5GHZ(128,
 867                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 868                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 869         CHAN5GHZ(132,
 870                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 871                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 872         CHAN5GHZ(136,
 873                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 874                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 875         CHAN5GHZ(140,
 876                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 877                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS |
 878                  IEEE80211_CHAN_NO_HT40MINUS),
 879         /* UNII-3 */
 880         CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
 881         CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
 882         CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
 883         CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
 884         CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
 885 };
 886
 887 #define RATE(rate100m, _flags) { \
 888         .bitrate = (rate100m), \
 889         .flags = (_flags), \
 890         .hw_value = (rate100m / 5), \
 891 }
 892
 893 static struct ieee80211_rate wl_legacy_ratetable[] = {
 894         RATE(10, 0),
 895         RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
 896         RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
 897         RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
 898         RATE(60, 0),
 899         RATE(90, 0),
 900         RATE(120, 0),
 901         RATE(180, 0),
 902         RATE(240, 0),
 903         RATE(360, 0),
 904         RATE(480, 0),
 905         RATE(540, 0),
 906 };
 907
 908 static struct ieee80211_supported_band wl_band_2GHz_nphy = {
 909         .band = IEEE80211_BAND_2GHZ,
 910         .channels = wl_2ghz_chantable,
 911         .n_channels = ARRAY_SIZE(wl_2ghz_chantable),
 912         .bitrates = wl_legacy_ratetable,
 913         .n_bitrates = ARRAY_SIZE(wl_legacy_ratetable),
 914         .ht_cap = {
 915                    /* from include/linux/ieee80211.h */
 916                    .cap = IEEE80211_HT_CAP_GRN_FLD |
 917                    IEEE80211_HT_CAP_SGI_20 |
 918                    IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT,
 919                    .ht_supported = true,
 920                    .ampdu_factor = AMPDU_RX_FACTOR_64K,
 921                    .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
 922                    .mcs = {
 923                            /* placeholders for now */
 924                            .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
 925                            .rx_highest = 500,
 926                            .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
 927                    }
 928 };
 929
 930 static struct ieee80211_supported_band wl_band_5GHz_nphy = {
 931         .band = IEEE80211_BAND_5GHZ,
 932         .channels = wl_5ghz_nphy_chantable,
 933         .n_channels = ARRAY_SIZE(wl_5ghz_nphy_chantable),
 934         .bitrates = wl_legacy_ratetable + 4,
 935         .n_bitrates = ARRAY_SIZE(wl_legacy_ratetable) - 4,
 936         .ht_cap = {
 937                    /* use IEEE80211_HT_CAP_* from include/linux/ieee80211.h */
 938                    .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT,     /* No 40 mhz yet */
 939                    .ht_supported = true,
 940                    .ampdu_factor = AMPDU_RX_FACTOR_64K,
 941                    .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
 942                    .mcs = {
 943                            /* placeholders for now */
 944                            .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
 945                            .rx_highest = 500,
 946                            .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
 947                    }
 948 };
 949
 950 static int ieee_hw_rate_init(struct ieee80211_hw *hw)
 951 {
 952         struct wl_info *wl = HW_TO_WL(hw);
 953         int has_5g;
 954         char phy_list[4];
 955
 956         has_5g = 0;
 957
 958         hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
 959         hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
 960
 961         if (wlc_get(wl->wlc, WLC_GET_PHYLIST, (int *)&phy_list) < 0) {
 962                 WL_ERROR("Phy list failed\n");
 963         }
 964         WL_NONE("%s: phylist = %c\n", __func__, phy_list[0]);
 965
 966         if (phy_list[0] == 'n' || phy_list[0] == 'c') {
 967                 if (phy_list[0] == 'c') {
 968                         /* Single stream */
 969                         wl_band_2GHz_nphy.ht_cap.mcs.rx_mask[1] = 0;
 970                         wl_band_2GHz_nphy.ht_cap.mcs.rx_highest = 72;
 971                 }
 972                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl_band_2GHz_nphy;
 973         } else {
 974                 BUG();
 975                 return -1;
 976         }
 977
 978         /* Assume all bands use the same phy.  True for 11n devices. */
 979         if (NBANDS_PUB(wl->pub) > 1) {
 980                 has_5g++;
 981                 if (phy_list[0] == 'n' || phy_list[0] == 'c') {
 982                         hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 983                             &wl_band_5GHz_nphy;
 984                 } else {
 985                         return -1;
 986                 }
 987         }
 988
 989         WL_NONE("%s: 2ghz = %d, 5ghz = %d\n", __func__, 1, has_5g);
 990
 991         return 0;
 992 }
 993
 994 static int ieee_hw_init(struct ieee80211_hw *hw)
 995 {
 996         hw->flags = IEEE80211_HW_SIGNAL_DBM
 997             /* | IEEE80211_HW_CONNECTION_MONITOR  What is this? */
 998             | IEEE80211_HW_REPORTS_TX_ACK_STATUS
 999             | IEEE80211_HW_AMPDU_AGGREGATION;
1000
1001         hw->extra_tx_headroom = wlc_get_header_len();
1002         /* FIXME: should get this from wlc->machwcap */
1003         hw->queues = 4;
1004         /* FIXME: this doesn't seem to be used properly in minstrel_ht.
1005          * mac80211/status.c:ieee80211_tx_status() checks this value,
1006          * but mac80211/rc80211_minstrel_ht.c:minstrel_ht_get_rate()
1007          * appears to always set 3 rates
1008          */
1009         hw->max_rates = 2;      /* Primary rate and 1 fallback rate */
1010
1011         hw->channel_change_time = 7 * 1000;     /* channel change time is dependant on chip and band  */
1012         hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1013
1014         hw->rate_control_algorithm = "minstrel_ht";
1015
1016         hw->sta_data_size = sizeof(struct scb);
1017         return ieee_hw_rate_init(hw);
1018 }
1019
1020 /**
1021  * determines if a device is a WL device, and if so, attaches it.
1022  *
1023  * This function determines if a device pointed to by pdev is a WL device,
1024  * and if so, performs a wl_attach() on it.
1025  *
1026  */
1027 int __devinit
1028 wl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1029 {
1030         int rc;
1031         struct wl_info *wl;
1032         struct ieee80211_hw *hw;
1033         u32 val;
1034
1035         ASSERT(pdev);
1036
1037         WL_TRACE("%s: bus %d slot %d func %d irq %d\n",
1038                  __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
1039                  PCI_FUNC(pdev->devfn), pdev->irq);
1040
1041         if ((pdev->vendor != PCI_VENDOR_ID_BROADCOM) ||
1042             (((pdev->device & 0xff00) != 0x4300) &&
1043              ((pdev->device & 0xff00) != 0x4700) &&
1044              ((pdev->device < 43000) || (pdev->device > 43999))))
1045                 return -ENODEV;
1046
1047         rc = pci_enable_device(pdev);
1048         if (rc) {
1049                 WL_ERROR("%s: Cannot enable device %d-%d_%d\n",
1050                          __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
1051                          PCI_FUNC(pdev->devfn));
1052                 return -ENODEV;
1053         }
1054         pci_set_master(pdev);
1055
1056         pci_read_config_dword(pdev, 0x40, &val);
1057         if ((val & 0x0000ff00) != 0)
1058                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1059
1060         hw = ieee80211_alloc_hw(sizeof(struct wl_info), &wl_ops);
1061         if (!hw) {
1062                 WL_ERROR("%s: ieee80211_alloc_hw failed\n", __func__);
1063                 rc = -ENOMEM;
1064                 goto err_1;
1065         }
1066
1067         SET_IEEE80211_DEV(hw, &pdev->dev);
1068
1069         pci_set_drvdata(pdev, hw);
1070
1071         memset(hw->priv, 0, sizeof(*wl));
1072
1073         wl = wl_attach(pdev->vendor, pdev->device, pci_resource_start(pdev, 0),
1074                        PCI_BUS, pdev, pdev->irq);
1075
1076         if (!wl) {
1077                 WL_ERROR("%s: %s: wl_attach failed!\n",
1078                          KBUILD_MODNAME, __func__);
1079                 return -ENODEV;
1080         }
1081         return 0;
1082  err_1:
1083         WL_ERROR("%s: err_1: Major hoarkage\n", __func__);
1084         return 0;
1085 }
1086
1087 static int wl_suspend(struct pci_dev *pdev, pm_message_t state)
1088 {
1089         struct wl_info *wl;
1090         struct ieee80211_hw *hw;
1091
1092         WL_TRACE("wl: wl_suspend\n");
1093
1094         hw = pci_get_drvdata(pdev);
1095         wl = HW_TO_WL(hw);
1096         if (!wl) {
1097                 WL_ERROR("wl: wl_suspend: pci_get_drvdata failed\n");
1098                 return -ENODEV;
1099         }
1100
1101         /* only need to flag hw is down for proper resume */
1102         WL_LOCK(wl);
1103         wl->pub->hw_up = false;
1104         WL_UNLOCK(wl);
1105
1106         pci_save_state(pdev);
1107         pci_disable_device(pdev);
1108         return pci_set_power_state(pdev, PCI_D3hot);
1109 }
1110
1111 static int wl_resume(struct pci_dev *pdev)
1112 {
1113         struct wl_info *wl;
1114         struct ieee80211_hw *hw;
1115         int err = 0;
1116         u32 val;
1117
1118         WL_TRACE("wl: wl_resume\n");
1119         hw = pci_get_drvdata(pdev);
1120         wl = HW_TO_WL(hw);
1121         if (!wl) {
1122                 WL_ERROR("wl: wl_resume: pci_get_drvdata failed\n");
1123                 return -ENODEV;
1124         }
1125
1126         err = pci_set_power_state(pdev, PCI_D0);
1127         if (err)
1128                 return err;
1129
1130         pci_restore_state(pdev);
1131
1132         err = pci_enable_device(pdev);
1133         if (err)
1134                 return err;
1135
1136         pci_set_master(pdev);
1137
1138         pci_read_config_dword(pdev, 0x40, &val);
1139         if ((val & 0x0000ff00) != 0)
1140                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1141
1142         /*
1143         *  done. driver will be put in up state
1144         *  in wl_ops_add_interface() call.
1145         */
1146         return err;
1147 }
1148
1149 static void wl_remove(struct pci_dev *pdev)
1150 {
1151         struct wl_info *wl;
1152         struct ieee80211_hw *hw;
1153
1154         hw = pci_get_drvdata(pdev);
1155         wl = HW_TO_WL(hw);
1156         if (!wl) {
1157                 WL_ERROR("wl: wl_remove: pci_get_drvdata failed\n");
1158                 return;
1159         }
1160
1161         /* make sure rfkill is not using driver */
1162         wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
1163         wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
1164
1165         if (!wlc_chipmatch(pdev->vendor, pdev->device)) {
1166                 WL_ERROR("wl: wl_remove: wlc_chipmatch failed\n");
1167                 return;
1168         }
1169         if (wl->wlc) {
1170                 ieee80211_unregister_hw(hw);
1171                 WL_LOCK(wl);
1172                 wl_down(wl);
1173                 WL_UNLOCK(wl);
1174                 WL_NONE("%s: Down\n", __func__);
1175         }
1176         pci_disable_device(pdev);
1177
1178         wl_free(wl);
1179
1180         pci_set_drvdata(pdev, NULL);
1181         ieee80211_free_hw(hw);
1182 }
1183
1184 static struct pci_driver wl_pci_driver = {
1185         .name     = KBUILD_MODNAME,
1186         .probe    = wl_pci_probe,
1187         .suspend  = wl_suspend,
1188         .resume   = wl_resume,
1189         .remove   = __devexit_p(wl_remove),
1190         .id_table = wl_id_table,
1191 };
1192
1193 /**
1194  * This is the main entry point for the WL driver.
1195  *
1196  * This function determines if a device pointed to by pdev is a WL device,
1197  * and if so, performs a wl_attach() on it.
1198  *
1199  */
1200 static int __init wl_module_init(void)
1201 {
1202         int error = -ENODEV;
1203
1204 #ifdef BCMDBG
1205         if (msglevel != 0xdeadbeef)
1206                 wl_msg_level = msglevel;
1207         else {
1208                 char *var = getvar(NULL, "wl_msglevel");
1209                 if (var)
1210                         wl_msg_level = simple_strtoul(var, NULL, 0);
1211         }
1212         {
1213                 extern u32 phyhal_msg_level;
1214
1215                 if (phymsglevel != 0xdeadbeef)
1216                         phyhal_msg_level = phymsglevel;
1217                 else {
1218                         char *var = getvar(NULL, "phy_msglevel");
1219                         if (var)
1220                                 phyhal_msg_level = simple_strtoul(var, NULL, 0);
1221                 }
1222         }
1223 #endif                          /* BCMDBG */
1224
1225         error = pci_register_driver(&wl_pci_driver);
1226         if (!error)
1227                 return 0;
1228
1229
1230
1231         return error;
1232 }
1233
1234 /**
1235  * This function unloads the WL driver from the system.
1236  *
1237  * This function unconditionally unloads the WL driver module from the
1238  * system.
1239  *
1240  */
1241 static void __exit wl_module_exit(void)
1242 {
1243         pci_unregister_driver(&wl_pci_driver);
1244
1245 }
1246
1247 module_init(wl_module_init);
1248 module_exit(wl_module_exit);
1249
1250 /**
1251  * This function frees the WL per-device resources.
1252  *
1253  * This function frees resources owned by the WL device pointed to
1254  * by the wl parameter.
1255  *
1256  */
1257 void wl_free(struct wl_info *wl)
1258 {
1259         wl_timer_t *t, *next;
1260         struct osl_info *osh;
1261
1262         ASSERT(wl);
1263         /* free ucode data */
1264         if (wl->fw.fw_cnt)
1265                 wl_ucode_data_free();
1266         if (wl->irq)
1267                 free_irq(wl->irq, wl);
1268
1269         /* kill dpc */
1270         tasklet_kill(&wl->tasklet);
1271
1272         if (wl->pub) {
1273                 wlc_module_unregister(wl->pub, "linux", wl);
1274         }
1275
1276         /* free common resources */
1277         if (wl->wlc) {
1278                 wlc_detach(wl->wlc);
1279                 wl->wlc = NULL;
1280                 wl->pub = NULL;
1281         }
1282
1283         /* virtual interface deletion is deferred so we cannot spinwait */
1284
1285         /* wait for all pending callbacks to complete */
1286         while (atomic_read(&wl->callbacks) > 0)
1287                 schedule();
1288
1289         /* free timers */
1290         for (t = wl->timers; t; t = next) {
1291                 next = t->next;
1292 #ifdef BCMDBG
1293                 if (t->name)
1294                         kfree(t->name);
1295 #endif
1296                 kfree(t);
1297         }
1298
1299         osh = wl->osh;
1300
1301         /*
1302          * unregister_netdev() calls get_stats() which may read chip registers
1303          * so we cannot unmap the chip registers until after calling unregister_netdev() .
1304          */
1305         if (wl->regsva && wl->bcm_bustype != SDIO_BUS &&
1306             wl->bcm_bustype != JTAG_BUS) {
1307                 iounmap((void *)wl->regsva);
1308         }
1309         wl->regsva = NULL;
1310
1311
1312         osl_detach(osh);
1313 }
1314
1315 /* transmit a packet */
1316 static int BCMFASTPATH wl_start(struct sk_buff *skb, struct wl_info *wl)
1317 {
1318         if (!wl)
1319                 return -ENETDOWN;
1320
1321         return wl_start_int(wl, WL_TO_HW(wl), skb);
1322 }
1323
1324 static int BCMFASTPATH
1325 wl_start_int(struct wl_info *wl, struct ieee80211_hw *hw, struct sk_buff *skb)
1326 {
1327         wlc_sendpkt_mac80211(wl->wlc, skb, hw);
1328         return NETDEV_TX_OK;
1329 }
1330
1331 void wl_txflowcontrol(struct wl_info *wl, struct wl_if *wlif, bool state,
1332                       int prio)
1333 {
1334         WL_ERROR("Shouldn't be here %s\n", __func__);
1335 }
1336
1337 void wl_init(struct wl_info *wl)
1338 {
1339         WL_TRACE("wl%d: wl_init\n", wl->pub->unit);
1340
1341         wl_reset(wl);
1342
1343         wlc_init(wl->wlc);
1344 }
1345
1346 uint wl_reset(struct wl_info *wl)
1347 {
1348         WL_TRACE("wl%d: wl_reset\n", wl->pub->unit);
1349
1350         wlc_reset(wl->wlc);
1351
1352         /* dpc will not be rescheduled */
1353         wl->resched = 0;
1354
1355         return 0;
1356 }
1357
1358 /*
1359  * These are interrupt on/off entry points. Disable interrupts
1360  * during interrupt state transition.
1361  */
1362 void BCMFASTPATH wl_intrson(struct wl_info *wl)
1363 {
1364         unsigned long flags;
1365
1366         INT_LOCK(wl, flags);
1367         wlc_intrson(wl->wlc);
1368         INT_UNLOCK(wl, flags);
1369 }
1370
1371 bool wl_alloc_dma_resources(struct wl_info *wl, uint addrwidth)
1372 {
1373         return true;
1374 }
1375
1376 u32 BCMFASTPATH wl_intrsoff(struct wl_info *wl)
1377 {
1378         unsigned long flags;
1379         u32 status;
1380
1381         INT_LOCK(wl, flags);
1382         status = wlc_intrsoff(wl->wlc);
1383         INT_UNLOCK(wl, flags);
1384         return status;
1385 }
1386
1387 void wl_intrsrestore(struct wl_info *wl, u32 macintmask)
1388 {
1389         unsigned long flags;
1390
1391         INT_LOCK(wl, flags);
1392         wlc_intrsrestore(wl->wlc, macintmask);
1393         INT_UNLOCK(wl, flags);
1394 }
1395
1396 int wl_up(struct wl_info *wl)
1397 {
1398         int error = 0;
1399
1400         if (wl->pub->up)
1401                 return 0;
1402
1403         error = wlc_up(wl->wlc);
1404
1405         return error;
1406 }
1407
1408 void wl_down(struct wl_info *wl)
1409 {
1410         uint callbacks, ret_val = 0;
1411
1412         /* call common down function */
1413         ret_val = wlc_down(wl->wlc);
1414         callbacks = atomic_read(&wl->callbacks) - ret_val;
1415
1416         /* wait for down callbacks to complete */
1417         WL_UNLOCK(wl);
1418
1419         /* For HIGH_only driver, it's important to actually schedule other work,
1420          * not just spin wait since everything runs at schedule level
1421          */
1422         SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1423
1424         WL_LOCK(wl);
1425 }
1426
1427 irqreturn_t BCMFASTPATH wl_isr(int irq, void *dev_id)
1428 {
1429         struct wl_info *wl;
1430         bool ours, wantdpc;
1431         unsigned long flags;
1432
1433         wl = (struct wl_info *) dev_id;
1434
1435         WL_ISRLOCK(wl, flags);
1436
1437         /* call common first level interrupt handler */
1438         ours = wlc_isr(wl->wlc, &wantdpc);
1439         if (ours) {
1440                 /* if more to do... */
1441                 if (wantdpc) {
1442
1443                         /* ...and call the second level interrupt handler */
1444                         /* schedule dpc */
1445                         ASSERT(wl->resched == false);
1446                         tasklet_schedule(&wl->tasklet);
1447                 }
1448         }
1449
1450         WL_ISRUNLOCK(wl, flags);
1451
1452         return IRQ_RETVAL(ours);
1453 }
1454
1455 static void BCMFASTPATH wl_dpc(unsigned long data)
1456 {
1457         struct wl_info *wl;
1458
1459         wl = (struct wl_info *) data;
1460
1461         WL_LOCK(wl);
1462
1463         /* call the common second level interrupt handler */
1464         if (wl->pub->up) {
1465                 if (wl->resched) {
1466                         unsigned long flags;
1467
1468                         INT_LOCK(wl, flags);
1469                         wlc_intrsupd(wl->wlc);
1470                         INT_UNLOCK(wl, flags);
1471                 }
1472
1473                 wl->resched = wlc_dpc(wl->wlc, true);
1474         }
1475
1476         /* wlc_dpc() may bring the driver down */
1477         if (!wl->pub->up)
1478                 goto done;
1479
1480         /* re-schedule dpc */
1481         if (wl->resched)
1482                 tasklet_schedule(&wl->tasklet);
1483         else {
1484                 /* re-enable interrupts */
1485                 wl_intrson(wl);
1486         }
1487
1488  done:
1489         WL_UNLOCK(wl);
1490 }
1491
1492 static void wl_link_up(struct wl_info *wl, char *ifname)
1493 {
1494         WL_ERROR("wl%d: link up (%s)\n", wl->pub->unit, ifname);
1495 }
1496
1497 static void wl_link_down(struct wl_info *wl, char *ifname)
1498 {
1499         WL_ERROR("wl%d: link down (%s)\n", wl->pub->unit, ifname);
1500 }
1501
1502 void wl_event(struct wl_info *wl, char *ifname, wlc_event_t *e)
1503 {
1504
1505         switch (e->event.event_type) {
1506         case WLC_E_LINK:
1507         case WLC_E_NDIS_LINK:
1508                 if (e->event.flags & WLC_EVENT_MSG_LINK)
1509                         wl_link_up(wl, ifname);
1510                 else
1511                         wl_link_down(wl, ifname);
1512                 break;
1513         case WLC_E_RADIO:
1514                 break;
1515         }
1516 }
1517
1518 static void wl_timer(unsigned long data)
1519 {
1520         _wl_timer((wl_timer_t *) data);
1521 }
1522
1523 static void _wl_timer(wl_timer_t *t)
1524 {
1525         WL_LOCK(t->wl);
1526
1527         if (t->set) {
1528                 if (t->periodic) {
1529                         t->timer.expires = jiffies + t->ms * HZ / 1000;
1530                         atomic_inc(&t->wl->callbacks);
1531                         add_timer(&t->timer);
1532                         t->set = true;
1533                 } else
1534                         t->set = false;
1535
1536                 t->fn(t->arg);
1537         }
1538
1539         atomic_dec(&t->wl->callbacks);
1540
1541         WL_UNLOCK(t->wl);
1542 }
1543
1544 wl_timer_t *wl_init_timer(struct wl_info *wl, void (*fn) (void *arg), void *arg,
1545                           const char *name)
1546 {
1547         wl_timer_t *t;
1548
1549         t = kmalloc(sizeof(wl_timer_t), GFP_ATOMIC);
1550         if (!t) {
1551                 WL_ERROR("wl%d: wl_init_timer: out of memory\n", wl->pub->unit);
1552                 return 0;
1553         }
1554
1555         memset(t, 0, sizeof(wl_timer_t));
1556
1557         init_timer(&t->timer);
1558         t->timer.data = (unsigned long) t;
1559         t->timer.function = wl_timer;
1560         t->wl = wl;
1561         t->fn = fn;
1562         t->arg = arg;
1563         t->next = wl->timers;
1564         wl->timers = t;
1565
1566 #ifdef BCMDBG
1567         t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC);
1568         if (t->name)
1569                 strcpy(t->name, name);
1570 #endif
1571
1572         return t;
1573 }
1574
1575 /* BMAC_NOTE: Add timer adds only the kernel timer since it's going to be more accurate
1576  * as well as it's easier to make it periodic
1577  */
1578 void wl_add_timer(struct wl_info *wl, wl_timer_t *t, uint ms, int periodic)
1579 {
1580 #ifdef BCMDBG
1581         if (t->set) {
1582                 WL_ERROR("%s: Already set. Name: %s, per %d\n",
1583                          __func__, t->name, periodic);
1584         }
1585 #endif
1586         ASSERT(!t->set);
1587
1588         t->ms = ms;
1589         t->periodic = (bool) periodic;
1590         t->set = true;
1591         t->timer.expires = jiffies + ms * HZ / 1000;
1592
1593         atomic_inc(&wl->callbacks);
1594         add_timer(&t->timer);
1595 }
1596
1597 /* return true if timer successfully deleted, false if still pending */
1598 bool wl_del_timer(struct wl_info *wl, wl_timer_t *t)
1599 {
1600         if (t->set) {
1601                 t->set = false;
1602                 if (!del_timer(&t->timer)) {
1603                         return false;
1604                 }
1605                 atomic_dec(&wl->callbacks);
1606         }
1607
1608         return true;
1609 }
1610
1611 void wl_free_timer(struct wl_info *wl, wl_timer_t *t)
1612 {
1613         wl_timer_t *tmp;
1614
1615         /* delete the timer in case it is active */
1616         wl_del_timer(wl, t);
1617
1618         if (wl->timers == t) {
1619                 wl->timers = wl->timers->next;
1620 #ifdef BCMDBG
1621                 if (t->name)
1622                         kfree(t->name);
1623 #endif
1624                 kfree(t);
1625                 return;
1626
1627         }
1628
1629         tmp = wl->timers;
1630         while (tmp) {
1631                 if (tmp->next == t) {
1632                         tmp->next = t->next;
1633 #ifdef BCMDBG
1634                         if (t->name)
1635                                 kfree(t->name);
1636 #endif
1637                         kfree(t);
1638                         return;
1639                 }
1640                 tmp = tmp->next;
1641         }
1642
1643 }
1644
1645 static int wl_linux_watchdog(void *ctx)
1646 {
1647         struct wl_info *wl = (struct wl_info *) ctx;
1648         struct net_device_stats *stats = NULL;
1649         uint id;
1650         /* refresh stats */
1651         if (wl->pub->up) {
1652                 ASSERT(wl->stats_id < 2);
1653
1654                 id = 1 - wl->stats_id;
1655
1656                 stats = &wl->stats_watchdog[id];
1657                 stats->rx_packets = WLCNTVAL(wl->pub->_cnt->rxframe);
1658                 stats->tx_packets = WLCNTVAL(wl->pub->_cnt->txframe);
1659                 stats->rx_bytes = WLCNTVAL(wl->pub->_cnt->rxbyte);
1660                 stats->tx_bytes = WLCNTVAL(wl->pub->_cnt->txbyte);
1661                 stats->rx_errors = WLCNTVAL(wl->pub->_cnt->rxerror);
1662                 stats->tx_errors = WLCNTVAL(wl->pub->_cnt->txerror);
1663                 stats->collisions = 0;
1664
1665                 stats->rx_length_errors = 0;
1666                 stats->rx_over_errors = WLCNTVAL(wl->pub->_cnt->rxoflo);
1667                 stats->rx_crc_errors = WLCNTVAL(wl->pub->_cnt->rxcrc);
1668                 stats->rx_frame_errors = 0;
1669                 stats->rx_fifo_errors = WLCNTVAL(wl->pub->_cnt->rxoflo);
1670                 stats->rx_missed_errors = 0;
1671
1672                 stats->tx_fifo_errors = WLCNTVAL(wl->pub->_cnt->txuflo);
1673
1674                 wl->stats_id = id;
1675
1676         }
1677
1678         return 0;
1679 }
1680
1681 struct wl_fw_hdr {
1682         u32 offset;
1683         u32 len;
1684         u32 idx;
1685 };
1686
1687 char *wl_firmwares[WL_MAX_FW] = {
1688         "brcm/bcm43xx",
1689         NULL
1690 };
1691
1692 int wl_ucode_init_buf(struct wl_info *wl, void **pbuf, u32 idx)
1693 {
1694         int i, entry;
1695         const u8 *pdata;
1696         struct wl_fw_hdr *hdr;
1697         for (i = 0; i < wl->fw.fw_cnt; i++) {
1698                 hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
1699                 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1700                      entry++, hdr++) {
1701                         if (hdr->idx == idx) {
1702                                 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1703                                 *pbuf = kmalloc(hdr->len, GFP_ATOMIC);
1704                                 if (*pbuf == NULL) {
1705                                         printf("fail to alloc %d bytes\n",
1706                                                hdr->len);
1707                                 }
1708                                 bcopy(pdata, *pbuf, hdr->len);
1709                                 return 0;
1710                         }
1711                 }
1712         }
1713         printf("ERROR: ucode buf tag:%d can not be found!\n", idx);
1714         *pbuf = NULL;
1715         return -1;
1716 }
1717
1718 int wl_ucode_init_uint(struct wl_info *wl, u32 *data, u32 idx)
1719 {
1720         int i, entry;
1721         const u8 *pdata;
1722         struct wl_fw_hdr *hdr;
1723         for (i = 0; i < wl->fw.fw_cnt; i++) {
1724                 hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
1725                 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1726                      entry++, hdr++) {
1727                         if (hdr->idx == idx) {
1728                                 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1729                                 ASSERT(hdr->len == 4);
1730                                 *data = *((u32 *) pdata);
1731                                 return 0;
1732                         }
1733                 }
1734         }
1735         printf("ERROR: ucode tag:%d can not be found!\n", idx);
1736         return -1;
1737 }
1738
1739 static int wl_request_fw(struct wl_info *wl, struct pci_dev *pdev)
1740 {
1741         int status;
1742         struct device *device = &pdev->dev;
1743         char fw_name[100];
1744         int i;
1745
1746         memset((void *)&wl->fw, 0, sizeof(struct wl_firmware));
1747         for (i = 0; i < WL_MAX_FW; i++) {
1748                 if (wl_firmwares[i] == NULL)
1749                         break;
1750                 sprintf(fw_name, "%s-%d.fw", wl_firmwares[i],
1751                         UCODE_LOADER_API_VER);
1752                 WL_NONE("request fw %s\n", fw_name);
1753                 status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
1754                 if (status) {
1755                         printf("%s: fail to load firmware %s\n",
1756                                 KBUILD_MODNAME, fw_name);
1757                         wl_release_fw(wl);
1758                         return status;
1759                 }
1760                 WL_NONE("request fw %s\n", fw_name);
1761                 sprintf(fw_name, "%s_hdr-%d.fw", wl_firmwares[i],
1762                         UCODE_LOADER_API_VER);
1763                 status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
1764                 if (status) {
1765                         printf("%s: fail to load firmware %s\n",
1766                                 KBUILD_MODNAME, fw_name);
1767                         wl_release_fw(wl);
1768                         return status;
1769                 }
1770                 wl->fw.hdr_num_entries[i] =
1771                     wl->fw.fw_hdr[i]->size / (sizeof(struct wl_fw_hdr));
1772                 WL_NONE("request fw %s find: %d entries\n",
1773                         fw_name, wl->fw.hdr_num_entries[i]);
1774         }
1775         wl->fw.fw_cnt = i;
1776         return wl_ucode_data_init(wl);
1777 }
1778
1779 void wl_ucode_free_buf(void *p)
1780 {
1781         kfree(p);
1782 }
1783
1784 static void wl_release_fw(struct wl_info *wl)
1785 {
1786         int i;
1787         for (i = 0; i < WL_MAX_FW; i++) {
1788                 release_firmware(wl->fw.fw_bin[i]);
1789                 release_firmware(wl->fw.fw_hdr[i]);
1790         }
1791 }
1792
1793
1794 /*
1795  * checks validity of all firmware images loaded from user space
1796  */
1797 int wl_check_firmwares(struct wl_info *wl)
1798 {
1799         int i;
1800         int entry;
1801         int rc = 0;
1802         const struct firmware *fw;
1803         const struct firmware *fw_hdr;
1804         struct wl_fw_hdr *ucode_hdr;
1805         for (i = 0; i < WL_MAX_FW && rc == 0; i++) {
1806                 fw =  wl->fw.fw_bin[i];
1807                 fw_hdr = wl->fw.fw_hdr[i];
1808                 if (fw == NULL && fw_hdr == NULL) {
1809                         break;
1810                 } else if (fw == NULL || fw_hdr == NULL) {
1811                         WL_ERROR("%s: invalid bin/hdr fw\n", __func__);
1812                         rc = -EBADF;
1813                 } else if (fw_hdr->size % sizeof(struct wl_fw_hdr)) {
1814                         WL_ERROR("%s: non integral fw hdr file size %d/%zu\n",
1815                                  __func__, fw_hdr->size,
1816                                  sizeof(struct wl_fw_hdr));
1817                         rc = -EBADF;
1818                 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1819                         WL_ERROR("%s: out of bounds fw file size %d\n",
1820                                  __func__, fw->size);
1821                         rc = -EBADF;
1822                 } else {
1823                         /* check if ucode section overruns firmware image */
1824                         ucode_hdr = (struct wl_fw_hdr *)fw_hdr->data;
1825                         for (entry = 0; entry < wl->fw.hdr_num_entries[i] && rc;
1826                              entry++, ucode_hdr++) {
1827                                 if (ucode_hdr->offset + ucode_hdr->len >
1828                                     fw->size) {
1829                                         WL_ERROR("%s: conflicting bin/hdr\n",
1830                                                  __func__);
1831                                         rc = -EBADF;
1832                                 }
1833                         }
1834                 }
1835         }
1836         if (rc == 0 && wl->fw.fw_cnt != i) {
1837                 WL_ERROR("%s: invalid fw_cnt=%d\n", __func__, wl->fw.fw_cnt);
1838                 rc = -EBADF;
1839         }
1840         return rc;
1841 }
1842
1843 bool wl_rfkill_set_hw_state(struct wl_info *wl)
1844 {
1845         bool blocked = wlc_check_radio_disabled(wl->wlc);
1846
1847         WL_ERROR("%s: update hw state: blocked=%s\n", __func__, blocked ? "true" : "false");
1848         wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1849         if (blocked)
1850                 wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
1851         return blocked;
1852 }