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_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 139                       struct ieee80211_sta *sta);
 140 static int wl_ops_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 141                          struct ieee80211_sta *sta);
 142 static int wl_ops_ampdu_action(struct ieee80211_hw *hw,
 143                                struct ieee80211_vif *vif,
 144                                enum ieee80211_ampdu_mlme_action action,
 145                                struct ieee80211_sta *sta, u16 tid, u16 *ssn);
 146 static void wl_ops_rfkill_poll(struct ieee80211_hw *hw);
 147
 148 static int wl_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 149 {
 150         int status;
 151         struct wl_info *wl = hw->priv;
 152
 153         WL_LOCK(wl);
 154         if (!wl->pub->up) {
 155                 WL_ERROR("ops->tx called while down\n");
 156                 status = -ENETDOWN;
 157                 goto done;
 158         }
 159         status = wl_start(skb, wl);
 160  done:
 161         WL_UNLOCK(wl);
 162         return status;
 163 }
 164
 165 static int wl_ops_start(struct ieee80211_hw *hw)
 166 {
 167         struct wl_info *wl = hw->priv;
 168         bool blocked;
 169         /*
 170           struct ieee80211_channel *curchan = hw->conf.channel;
 171           WL_NONE("%s : Initial channel: %d\n", __func__, curchan->hw_value);
 172         */
 173
 174         WL_LOCK(wl);
 175         ieee80211_wake_queues(hw);
 176         WL_UNLOCK(wl);
 177         blocked = wl_rfkill_set_hw_state(wl);
 178         if (!blocked)
 179                 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
 180
 181         return 0;
 182 }
 183
 184 static void wl_ops_stop(struct ieee80211_hw *hw)
 185 {
 186         struct wl_info *wl = hw->priv;
 187         ASSERT(wl);
 188         WL_LOCK(wl);
 189         ieee80211_stop_queues(hw);
 190         WL_UNLOCK(wl);
 191 }
 192
 193 static int
 194 wl_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 195 {
 196         struct wl_info *wl;
 197         int err;
 198
 199         /* Just STA for now */
 200         if (vif->type != NL80211_IFTYPE_AP &&
 201             vif->type != NL80211_IFTYPE_MESH_POINT &&
 202             vif->type != NL80211_IFTYPE_STATION &&
 203             vif->type != NL80211_IFTYPE_WDS &&
 204             vif->type != NL80211_IFTYPE_ADHOC) {
 205                 WL_ERROR("%s: Attempt to add type %d, only STA for now\n",
 206                          __func__, vif->type);
 207                 return -EOPNOTSUPP;
 208         }
 209
 210         wl = HW_TO_WL(hw);
 211         WL_LOCK(wl);
 212         err = wl_up(wl);
 213         WL_UNLOCK(wl);
 214
 215         if (err != 0) {
 216                 WL_ERROR("%s: wl_up() returned %d\n", __func__, err);
 217         }
 218         return err;
 219 }
 220
 221 static void
 222 wl_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 223 {
 224         struct wl_info *wl;
 225
 226         wl = HW_TO_WL(hw);
 227
 228         /* put driver in down state */
 229         WL_LOCK(wl);
 230         wl_down(wl);
 231         WL_UNLOCK(wl);
 232 }
 233
 234 static int
 235 ieee_set_channel(struct ieee80211_hw *hw, struct ieee80211_channel *chan,
 236                  enum nl80211_channel_type type)
 237 {
 238         struct wl_info *wl = HW_TO_WL(hw);
 239         int err = 0;
 240
 241         switch (type) {
 242         case NL80211_CHAN_HT20:
 243         case NL80211_CHAN_NO_HT:
 244                 err = wlc_set(wl->wlc, WLC_SET_CHANNEL, chan->hw_value);
 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                 err = 1;
 250                 break;
 251         }
 252
 253         if (err)
 254                 return -EIO;
 255         return err;
 256 }
 257
 258 static int wl_ops_config(struct ieee80211_hw *hw, u32 changed)
 259 {
 260         struct ieee80211_conf *conf = &hw->conf;
 261         struct wl_info *wl = HW_TO_WL(hw);
 262         int err = 0;
 263         int new_int;
 264
 265         WL_LOCK(wl);
 266         if (changed & IEEE80211_CONF_CHANGE_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_ERROR("%s: change monitor mode: %s (implement)\n", __func__,
 279                          conf->flags & IEEE80211_CONF_MONITOR ?
 280                                 "true" : "false");
 281         if (changed & IEEE80211_CONF_CHANGE_PS)
 282                 WL_ERROR("%s: change power-save mode: %s (implement)\n",
 283                          __func__, conf->flags & IEEE80211_CONF_PS ?
 284                                 "true" : "false");
 285
 286         if (changed & IEEE80211_CONF_CHANGE_POWER) {
 287                 if (wlc_iovar_setint
 288                     (wl->wlc, "qtxpower", conf->power_level * 4)) {
 289                         WL_ERROR("%s: Error setting power_level\n", __func__);
 290                         err = -EIO;
 291                         goto config_out;
 292                 }
 293                 wlc_iovar_getint(wl->wlc, "qtxpower", &new_int);
 294                 if (new_int != (conf->power_level * 4))
 295                         WL_ERROR("%s: Power level req != actual, %d %d\n",
 296                                  __func__, conf->power_level * 4, new_int);
 297         }
 298         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 299                 err = ieee_set_channel(hw, conf->channel, conf->channel_type);
 300         }
 301         if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
 302                 if (wlc_set
 303                     (wl->wlc, WLC_SET_SRL,
 304                      conf->short_frame_max_tx_count) < 0) {
 305                         WL_ERROR("%s: Error setting srl\n", __func__);
 306                         err = -EIO;
 307                         goto config_out;
 308                 }
 309                 if (wlc_set(wl->wlc, WLC_SET_LRL, conf->long_frame_max_tx_count)
 310                     < 0) {
 311                         WL_ERROR("%s: Error setting lrl\n", __func__);
 312                         err = -EIO;
 313                         goto config_out;
 314                 }
 315         }
 316
 317  config_out:
 318         WL_UNLOCK(wl);
 319         return err;
 320 }
 321
 322 static void
 323 wl_ops_bss_info_changed(struct ieee80211_hw *hw,
 324                         struct ieee80211_vif *vif,
 325                         struct ieee80211_bss_conf *info, u32 changed)
 326 {
 327         struct wl_info *wl = HW_TO_WL(hw);
 328         int val;
 329
 330         if (changed & BSS_CHANGED_ASSOC) {
 331                 /* association status changed (associated/disassociated)
 332                  * also implies a change in the AID.
 333                  */
 334                 WL_ERROR("%s: %s: %sassociated\n", KBUILD_MODNAME, __func__,
 335                          info->assoc ? "" : "dis");
 336         }
 337         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 338                 /* CTS protection changed */
 339                 WL_ERROR("%s: use_cts_prot: %s (implement)\n", __func__,
 340                         info->use_cts_prot ? "true" : "false");
 341         }
 342         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 343                 /* preamble changed */
 344                 WL_ERROR("%s: short preamble: %s (implement)\n", __func__,
 345                         info->use_short_preamble ? "true" : "false");
 346         }
 347         if (changed & BSS_CHANGED_ERP_SLOT) {
 348                 /* slot timing changed */
 349                 if (info->use_short_slot)
 350                         val = 1;
 351                 else
 352                         val = 0;
 353                 wlc_set(wl->wlc, WLC_SET_SHORTSLOT_OVERRIDE, val);
 354         }
 355
 356         if (changed & BSS_CHANGED_HT) {
 357                 /* 802.11n parameters changed */
 358                 u16 mode = info->ht_operation_mode;
 359                 WL_NONE("%s: HT mode: 0x%04X (implement)\n", __func__, mode);
 360         }
 361         if (changed & BSS_CHANGED_BASIC_RATES) {
 362                 /* Basic rateset changed */
 363                 WL_ERROR("%s: Need to change Basic Rates: 0x%x (implement)\n",
 364                          __func__, (u32) info->basic_rates);
 365         }
 366         if (changed & BSS_CHANGED_BEACON_INT) {
 367                 /* Beacon interval changed */
 368                 WL_NONE("%s: Beacon Interval: %d\n",
 369                         __func__, info->beacon_int);
 370         }
 371         if (changed & BSS_CHANGED_BSSID) {
 372                 /* BSSID changed, for whatever reason (IBSS and managed mode) */
 373                 WL_NONE("new BSSID:\taid %d  bss:%pM\n",
 374                         info->aid, info->bssid);
 375                 /* FIXME: need to store bssid in bsscfg */
 376                 wlc_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET,
 377                                   info->bssid);
 378         }
 379         if (changed & BSS_CHANGED_BEACON) {
 380                 /* Beacon data changed, retrieve new beacon (beaconing modes) */
 381                 WL_ERROR("BSS_CHANGED_BEACON\n");
 382         }
 383         if (changed & BSS_CHANGED_BEACON_ENABLED) {
 384                 /* Beaconing should be enabled/disabled (beaconing modes) */
 385                 WL_ERROR("Beacon enabled: %s\n",
 386                          info->enable_beacon ? "true" : "false");
 387         }
 388         return;
 389 }
 390
 391 static void
 392 wl_ops_configure_filter(struct ieee80211_hw *hw,
 393                         unsigned int changed_flags,
 394                         unsigned int *total_flags, u64 multicast)
 395 {
 396         struct wl_info *wl = hw->priv;
 397
 398         changed_flags &= MAC_FILTERS;
 399         *total_flags &= MAC_FILTERS;
 400         if (changed_flags & FIF_PROMISC_IN_BSS)
 401                 WL_ERROR("FIF_PROMISC_IN_BSS\n");
 402         if (changed_flags & FIF_ALLMULTI)
 403                 WL_ERROR("FIF_ALLMULTI\n");
 404         if (changed_flags & FIF_FCSFAIL)
 405                 WL_ERROR("FIF_FCSFAIL\n");
 406         if (changed_flags & FIF_PLCPFAIL)
 407                 WL_ERROR("FIF_PLCPFAIL\n");
 408         if (changed_flags & FIF_CONTROL)
 409                 WL_ERROR("FIF_CONTROL\n");
 410         if (changed_flags & FIF_OTHER_BSS)
 411                 WL_ERROR("FIF_OTHER_BSS\n");
 412         if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
 413                 WL_NONE("FIF_BCN_PRBRESP_PROMISC\n");
 414                 WL_LOCK(wl);
 415                 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
 416                         wl->pub->mac80211_state |= MAC80211_PROMISC_BCNS;
 417                         wlc_mac_bcn_promisc_change(wl->wlc, 1);
 418                 } else {
 419                         wlc_mac_bcn_promisc_change(wl->wlc, 0);
 420                         wl->pub->mac80211_state &= ~MAC80211_PROMISC_BCNS;
 421                 }
 422                 WL_UNLOCK(wl);
 423         }
 424         return;
 425 }
 426
 427 static int
 428 wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
 429 {
 430         WL_NONE("%s: Enter\n", __func__);
 431         return 0;
 432 }
 433
 434 static void wl_ops_sw_scan_start(struct ieee80211_hw *hw)
 435 {
 436         struct wl_info *wl = hw->priv;
 437         WL_NONE("Scan Start\n");
 438         WL_LOCK(wl);
 439         wlc_scan_start(wl->wlc);
 440         WL_UNLOCK(wl);
 441         return;
 442 }
 443
 444 static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw)
 445 {
 446         struct wl_info *wl = hw->priv;
 447         WL_NONE("Scan Complete\n");
 448         WL_LOCK(wl);
 449         wlc_scan_stop(wl->wlc);
 450         WL_UNLOCK(wl);
 451         return;
 452 }
 453
 454 static void wl_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf)
 455 {
 456         WL_ERROR("%s: Enter\n", __func__);
 457         return;
 458 }
 459
 460 static int
 461 wl_ops_get_stats(struct ieee80211_hw *hw,
 462                  struct ieee80211_low_level_stats *stats)
 463 {
 464         WL_ERROR("%s: Enter\n", __func__);
 465         return 0;
 466 }
 467
 468 static int wl_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
 469 {
 470         struct wl_info *wl = hw->priv;
 471
 472         WL_LOCK(wl);
 473         wlc_iovar_setint(wl->wlc, "rtsthresh", value & 0xFFFF);
 474         WL_UNLOCK(wl);
 475         return 0;
 476 }
 477
 478 static void
 479 wl_ops_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 480                   enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
 481 {
 482         WL_NONE("%s: Enter\n", __func__);
 483         switch (cmd) {
 484         default:
 485                 WL_ERROR("%s: Unknown cmd = %d\n", __func__, cmd);
 486                 break;
 487         }
 488         return;
 489 }
 490
 491 static int
 492 wl_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
 493                const struct ieee80211_tx_queue_params *params)
 494 {
 495         struct wl_info *wl = hw->priv;
 496
 497         WL_NONE("%s: Enter (WME config)\n", __func__);
 498         WL_NONE("queue %d, txop %d, cwmin %d, cwmax %d, aifs %d\n", queue,
 499                  params->txop, params->cw_min, params->cw_max, params->aifs);
 500
 501         WL_LOCK(wl);
 502         wlc_wme_setparams(wl->wlc, queue, (void *)params, true);
 503         WL_UNLOCK(wl);
 504
 505         return 0;
 506 }
 507
 508 static u64 wl_ops_get_tsf(struct ieee80211_hw *hw)
 509 {
 510         WL_ERROR("%s: Enter\n", __func__);
 511         return 0;
 512 }
 513
 514 static int
 515 wl_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 516                struct ieee80211_sta *sta)
 517 {
 518         struct scb *scb;
 519
 520         int i;
 521         struct wl_info *wl = hw->priv;
 522
 523         /* Init the scb */
 524         scb = (struct scb *)sta->drv_priv;
 525         memset(scb, 0, sizeof(struct scb));
 526         for (i = 0; i < NUMPRIO; i++)
 527                 scb->seqctl[i] = 0xFFFF;
 528         scb->seqctl_nonqos = 0xFFFF;
 529         scb->magic = SCB_MAGIC;
 530
 531         wl->pub->global_scb = scb;
 532         wl->pub->global_ampdu = &(scb->scb_ampdu);
 533         wl->pub->global_ampdu->scb = scb;
 534         wl->pub->global_ampdu->max_pdu = 16;
 535         pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID,
 536                   AMPDU_MAX_SCB_TID * PKTQ_LEN_DEFAULT);
 537
 538         sta->ht_cap.ht_supported = true;
 539         sta->ht_cap.ampdu_factor = AMPDU_RX_FACTOR_64K;
 540         sta->ht_cap.ampdu_density = AMPDU_DEF_MPDU_DENSITY;
 541         sta->ht_cap.cap = IEEE80211_HT_CAP_GRN_FLD |
 542             IEEE80211_HT_CAP_SGI_20 |
 543             IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT;
 544
 545         /* minstrel_ht initiates addBA on our behalf by calling ieee80211_start_tx_ba_session() */
 546         return 0;
 547 }
 548
 549 static int
 550 wl_ops_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 551                   struct ieee80211_sta *sta)
 552 {
 553         WL_NONE("%s: Enter\n", __func__);
 554         return 0;
 555 }
 556
 557 static int
 558 wl_ops_ampdu_action(struct ieee80211_hw *hw,
 559                     struct ieee80211_vif *vif,
 560                     enum ieee80211_ampdu_mlme_action action,
 561                     struct ieee80211_sta *sta, u16 tid, u16 *ssn)
 562 {
 563 #if defined(BCMDBG)
 564         struct scb *scb = (struct scb *)sta->drv_priv;
 565 #endif
 566         struct wl_info *wl = hw->priv;
 567
 568         ASSERT(scb->magic == SCB_MAGIC);
 569         switch (action) {
 570         case IEEE80211_AMPDU_RX_START:
 571                 WL_NONE("%s: action = IEEE80211_AMPDU_RX_START\n", __func__);
 572                 break;
 573         case IEEE80211_AMPDU_RX_STOP:
 574                 WL_NONE("%s: action = IEEE80211_AMPDU_RX_STOP\n", __func__);
 575                 break;
 576         case IEEE80211_AMPDU_TX_START:
 577                 if (!wlc_aggregatable(wl->wlc, tid)) {
 578                         /* WL_ERROR("START: tid %d is not agg' able, return FAILURE to stack\n", tid); */
 579                         return -1;
 580                 }
 581                 /* XXX: Use the starting sequence number provided ... */
 582                 *ssn = 0;
 583                 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 584                 break;
 585
 586         case IEEE80211_AMPDU_TX_STOP:
 587                 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 588                 break;
 589         case IEEE80211_AMPDU_TX_OPERATIONAL:
 590                 /* Not sure what to do here */
 591                 /* Power save wakeup */
 592                 WL_NONE("%s: action = IEEE80211_AMPDU_TX_OPERATIONAL\n",
 593                         __func__);
 594                 break;
 595         default:
 596                 WL_ERROR("%s: Invalid command, ignoring\n", __func__);
 597         }
 598
 599         return 0;
 600 }
 601
 602 static void wl_ops_rfkill_poll(struct ieee80211_hw *hw)
 603 {
 604         struct wl_info *wl = HW_TO_WL(hw);
 605         bool blocked;
 606
 607         WL_LOCK(wl);
 608         blocked = wlc_check_radio_disabled(wl->wlc);
 609         WL_UNLOCK(wl);
 610
 611         WL_NONE("wl: rfkill_poll: %d\n", blocked);
 612         wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
 613 }
 614
 615 static const struct ieee80211_ops wl_ops = {
 616         .tx = wl_ops_tx,
 617         .start = wl_ops_start,
 618         .stop = wl_ops_stop,
 619         .add_interface = wl_ops_add_interface,
 620         .remove_interface = wl_ops_remove_interface,
 621         .config = wl_ops_config,
 622         .bss_info_changed = wl_ops_bss_info_changed,
 623         .configure_filter = wl_ops_configure_filter,
 624         .set_tim = wl_ops_set_tim,
 625         .sw_scan_start = wl_ops_sw_scan_start,
 626         .sw_scan_complete = wl_ops_sw_scan_complete,
 627         .set_tsf = wl_ops_set_tsf,
 628         .get_stats = wl_ops_get_stats,
 629         .set_rts_threshold = wl_ops_set_rts_threshold,
 630         .sta_notify = wl_ops_sta_notify,
 631         .conf_tx = wl_ops_conf_tx,
 632         .get_tsf = wl_ops_get_tsf,
 633         .sta_add = wl_ops_sta_add,
 634         .sta_remove = wl_ops_sta_remove,
 635         .ampdu_action = wl_ops_ampdu_action,
 636         .rfkill_poll = wl_ops_rfkill_poll,
 637 };
 638
 639 static int wl_set_hint(struct wl_info *wl, char *abbrev)
 640 {
 641         WL_NONE("%s: Sending country code %c%c to MAC80211\n",
 642                  __func__, abbrev[0], abbrev[1]);
 643         return regulatory_hint(wl->pub->ieee_hw->wiphy, abbrev);
 644 }
 645
 646 /**
 647  * attach to the WL device.
 648  *
 649  * Attach to the WL device identified by vendor and device parameters.
 650  * regs is a host accessible memory address pointing to WL device registers.
 651  *
 652  * wl_attach is not defined as static because in the case where no bus
 653  * is defined, wl_attach will never be called, and thus, gcc will issue
 654  * a warning that this function is defined but not used if we declare
 655  * it as static.
 656  */
 657 static struct wl_info *wl_attach(u16 vendor, u16 device, unsigned long regs,
 658                             uint bustype, void *btparam, uint irq)
 659 {
 660         struct wl_info *wl;
 661         struct osl_info *osh;
 662         int unit, err;
 663
 664         unsigned long base_addr;
 665         struct ieee80211_hw *hw;
 666         u8 perm[ETH_ALEN];
 667
 668         unit = wl_found;
 669         err = 0;
 670
 671         if (unit < 0) {
 672                 WL_ERROR("wl%d: unit number overflow, exiting\n", unit);
 673                 return NULL;
 674         }
 675
 676         osh = osl_attach(btparam, bustype);
 677         ASSERT(osh);
 678
 679         /* allocate private info */
 680         hw = pci_get_drvdata(btparam);  /* btparam == pdev */
 681         wl = hw->priv;
 682         ASSERT(wl);
 683
 684         wl->osh = osh;
 685         atomic_set(&wl->callbacks, 0);
 686
 687         /* setup the bottom half handler */
 688         tasklet_init(&wl->tasklet, wl_dpc, (unsigned long) wl);
 689
 690
 691
 692         base_addr = regs;
 693
 694         if (bustype == PCI_BUS) {
 695                 wl->piomode = false;
 696         } else if (bustype == RPC_BUS) {
 697                 /* Do nothing */
 698         } else {
 699                 bustype = PCI_BUS;
 700                 WL_TRACE("force to PCI\n");
 701         }
 702         wl->bcm_bustype = bustype;
 703
 704         wl->regsva = ioremap_nocache(base_addr, PCI_BAR0_WINSZ);
 705         if (wl->regsva == NULL) {
 706                 WL_ERROR("wl%d: ioremap() failed\n", unit);
 707                 goto fail;
 708         }
 709         spin_lock_init(&wl->lock);
 710         spin_lock_init(&wl->isr_lock);
 711
 712         /* prepare ucode */
 713         if (wl_request_fw(wl, (struct pci_dev *)btparam)) {
 714                 printf("%s: Failed to find firmware usually in %s\n",
 715                         KBUILD_MODNAME, "/lib/firmware/brcm");
 716                 wl_release_fw(wl);
 717                 wl_remove((struct pci_dev *)btparam);
 718                 goto fail1;
 719         }
 720
 721         /* common load-time initialization */
 722         wl->wlc = wlc_attach((void *)wl, vendor, device, unit, wl->piomode, osh,
 723                              wl->regsva, wl->bcm_bustype, btparam, &err);
 724         wl_release_fw(wl);
 725         if (!wl->wlc) {
 726                 printf("%s: wlc_attach() failed with code %d\n",
 727                         KBUILD_MODNAME, err);
 728                 goto fail;
 729         }
 730         wl->pub = wlc_pub(wl->wlc);
 731
 732         wl->pub->ieee_hw = hw;
 733         ASSERT(wl->pub->ieee_hw);
 734         ASSERT(wl->pub->ieee_hw->priv == wl);
 735
 736
 737         if (wlc_iovar_setint(wl->wlc, "mpc", 0)) {
 738                 WL_ERROR("wl%d: Error setting MPC variable to 0\n", unit);
 739         }
 740
 741         /* register our interrupt handler */
 742         if (request_irq(irq, wl_isr, IRQF_SHARED, KBUILD_MODNAME, wl)) {
 743                 WL_ERROR("wl%d: request_irq() failed\n", unit);
 744                 goto fail;
 745         }
 746         wl->irq = irq;
 747
 748         /* register module */
 749         wlc_module_register(wl->pub, NULL, "linux", wl, NULL, wl_linux_watchdog,
 750                             NULL);
 751
 752         if (ieee_hw_init(hw)) {
 753                 WL_ERROR("wl%d: %s: ieee_hw_init failed!\n", unit, __func__);
 754                 goto fail;
 755         }
 756
 757         bcopy(&wl->pub->cur_etheraddr, perm, ETH_ALEN);
 758         ASSERT(is_valid_ether_addr(perm));
 759         SET_IEEE80211_PERM_ADDR(hw, perm);
 760
 761         err = ieee80211_register_hw(hw);
 762         if (err) {
 763                 WL_ERROR("%s: ieee80211_register_hw failed, status %d\n",
 764                          __func__, err);
 765         }
 766
 767         if (wl->pub->srom_ccode[0])
 768                 err = wl_set_hint(wl, wl->pub->srom_ccode);
 769         else
 770                 err = wl_set_hint(wl, "US");
 771         if (err) {
 772                 WL_ERROR("%s: regulatory_hint failed, status %d\n",
 773                          __func__, err);
 774         }
 775
 776         wl_found++;
 777         return wl;
 778
 779 fail:
 780         wl_free(wl);
 781 fail1:
 782         return NULL;
 783 }
 784
 785
 786
 787 #define CHAN2GHZ(channel, freqency, chflags)  { \
 788         .band = IEEE80211_BAND_2GHZ, \
 789         .center_freq = (freqency), \
 790         .hw_value = (channel), \
 791         .flags = chflags, \
 792         .max_antenna_gain = 0, \
 793         .max_power = 19, \
 794 }
 795
 796 static struct ieee80211_channel wl_2ghz_chantable[] = {
 797         CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
 798         CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
 799         CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
 800         CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
 801         CHAN2GHZ(5, 2432, 0),
 802         CHAN2GHZ(6, 2437, 0),
 803         CHAN2GHZ(7, 2442, 0),
 804         CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
 805         CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
 806         CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
 807         CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
 808         CHAN2GHZ(12, 2467,
 809                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
 810                  IEEE80211_CHAN_NO_HT40PLUS),
 811         CHAN2GHZ(13, 2472,
 812                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
 813                  IEEE80211_CHAN_NO_HT40PLUS),
 814         CHAN2GHZ(14, 2484,
 815                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
 816                  IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
 817 };
 818
 819 #define CHAN5GHZ(channel, chflags)  { \
 820         .band = IEEE80211_BAND_5GHZ, \
 821         .center_freq = 5000 + 5*(channel), \
 822         .hw_value = (channel), \
 823         .flags = chflags, \
 824         .max_antenna_gain = 0, \
 825         .max_power = 21, \
 826 }
 827
 828 static struct ieee80211_channel wl_5ghz_nphy_chantable[] = {
 829         /* UNII-1 */
 830         CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
 831         CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
 832         CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
 833         CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
 834         /* UNII-2 */
 835         CHAN5GHZ(52,
 836                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 837                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 838         CHAN5GHZ(56,
 839                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 840                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 841         CHAN5GHZ(60,
 842                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 843                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 844         CHAN5GHZ(64,
 845                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 846                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 847         /* MID */
 848         CHAN5GHZ(100,
 849                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 850                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 851         CHAN5GHZ(104,
 852                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 853                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 854         CHAN5GHZ(108,
 855                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 856                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 857         CHAN5GHZ(112,
 858                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 859                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 860         CHAN5GHZ(116,
 861                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 862                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 863         CHAN5GHZ(120,
 864                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 865                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 866         CHAN5GHZ(124,
 867                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 868                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 869         CHAN5GHZ(128,
 870                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 871                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 872         CHAN5GHZ(132,
 873                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 874                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
 875         CHAN5GHZ(136,
 876                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 877                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
 878         CHAN5GHZ(140,
 879                  IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
 880                  IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS |
 881                  IEEE80211_CHAN_NO_HT40MINUS),
 882         /* UNII-3 */
 883         CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
 884         CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
 885         CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
 886         CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
 887         CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
 888 };
 889
 890 #define RATE(rate100m, _flags) { \
 891         .bitrate = (rate100m), \
 892         .flags = (_flags), \
 893         .hw_value = (rate100m / 5), \
 894 }
 895
 896 static struct ieee80211_rate wl_legacy_ratetable[] = {
 897         RATE(10, 0),
 898         RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
 899         RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
 900         RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
 901         RATE(60, 0),
 902         RATE(90, 0),
 903         RATE(120, 0),
 904         RATE(180, 0),
 905         RATE(240, 0),
 906         RATE(360, 0),
 907         RATE(480, 0),
 908         RATE(540, 0),
 909 };
 910
 911 static struct ieee80211_supported_band wl_band_2GHz_nphy = {
 912         .band = IEEE80211_BAND_2GHZ,
 913         .channels = wl_2ghz_chantable,
 914         .n_channels = ARRAY_SIZE(wl_2ghz_chantable),
 915         .bitrates = wl_legacy_ratetable,
 916         .n_bitrates = ARRAY_SIZE(wl_legacy_ratetable),
 917         .ht_cap = {
 918                    /* from include/linux/ieee80211.h */
 919                    .cap = IEEE80211_HT_CAP_GRN_FLD |
 920                    IEEE80211_HT_CAP_SGI_20 |
 921                    IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT,
 922                    .ht_supported = true,
 923                    .ampdu_factor = AMPDU_RX_FACTOR_64K,
 924                    .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
 925                    .mcs = {
 926                            /* placeholders for now */
 927                            .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
 928                            .rx_highest = 500,
 929                            .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
 930                    }
 931 };
 932
 933 static struct ieee80211_supported_band wl_band_5GHz_nphy = {
 934         .band = IEEE80211_BAND_5GHZ,
 935         .channels = wl_5ghz_nphy_chantable,
 936         .n_channels = ARRAY_SIZE(wl_5ghz_nphy_chantable),
 937         .bitrates = wl_legacy_ratetable + 4,
 938         .n_bitrates = ARRAY_SIZE(wl_legacy_ratetable) - 4,
 939         .ht_cap = {
 940                    /* use IEEE80211_HT_CAP_* from include/linux/ieee80211.h */
 941                    .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 */
 942                    .ht_supported = true,
 943                    .ampdu_factor = AMPDU_RX_FACTOR_64K,
 944                    .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
 945                    .mcs = {
 946                            /* placeholders for now */
 947                            .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
 948                            .rx_highest = 500,
 949                            .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
 950                    }
 951 };
 952
 953 static int ieee_hw_rate_init(struct ieee80211_hw *hw)
 954 {
 955         struct wl_info *wl = HW_TO_WL(hw);
 956         int has_5g;
 957         char phy_list[4];
 958
 959         has_5g = 0;
 960
 961         hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
 962         hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
 963
 964         if (wlc_get(wl->wlc, WLC_GET_PHYLIST, (int *)&phy_list) < 0) {
 965                 WL_ERROR("Phy list failed\n");
 966         }
 967         WL_NONE("%s: phylist = %c\n", __func__, phy_list[0]);
 968
 969         if (phy_list[0] == 'n' || phy_list[0] == 'c') {
 970                 if (phy_list[0] == 'c') {
 971                         /* Single stream */
 972                         wl_band_2GHz_nphy.ht_cap.mcs.rx_mask[1] = 0;
 973                         wl_band_2GHz_nphy.ht_cap.mcs.rx_highest = 72;
 974                 }
 975                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl_band_2GHz_nphy;
 976         } else {
 977                 BUG();
 978                 return -1;
 979         }
 980
 981         /* Assume all bands use the same phy.  True for 11n devices. */
 982         if (NBANDS_PUB(wl->pub) > 1) {
 983                 has_5g++;
 984                 if (phy_list[0] == 'n' || phy_list[0] == 'c') {
 985                         hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 986                             &wl_band_5GHz_nphy;
 987                 } else {
 988                         return -1;
 989                 }
 990         }
 991
 992         WL_NONE("%s: 2ghz = %d, 5ghz = %d\n", __func__, 1, has_5g);
 993
 994         return 0;
 995 }
 996
 997 static int ieee_hw_init(struct ieee80211_hw *hw)
 998 {
 999         hw->flags = IEEE80211_HW_SIGNAL_DBM
1000             /* | IEEE80211_HW_CONNECTION_MONITOR  What is this? */
1001             | IEEE80211_HW_REPORTS_TX_ACK_STATUS
1002             | IEEE80211_HW_AMPDU_AGGREGATION;
1003
1004         hw->extra_tx_headroom = wlc_get_header_len();
1005         /* FIXME: should get this from wlc->machwcap */
1006         hw->queues = 4;
1007         /* FIXME: this doesn't seem to be used properly in minstrel_ht.
1008          * mac80211/status.c:ieee80211_tx_status() checks this value,
1009          * but mac80211/rc80211_minstrel_ht.c:minstrel_ht_get_rate()
1010          * appears to always set 3 rates
1011          */
1012         hw->max_rates = 2;      /* Primary rate and 1 fallback rate */
1013
1014         hw->channel_change_time = 7 * 1000;     /* channel change time is dependant on chip and band  */
1015         hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1016
1017         hw->rate_control_algorithm = "minstrel_ht";
1018
1019         hw->sta_data_size = sizeof(struct scb);
1020         return ieee_hw_rate_init(hw);
1021 }
1022
1023 /**
1024  * determines if a device is a WL device, and if so, attaches it.
1025  *
1026  * This function determines if a device pointed to by pdev is a WL device,
1027  * and if so, performs a wl_attach() on it.
1028  *
1029  */
1030 int __devinit
1031 wl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1032 {
1033         int rc;
1034         struct wl_info *wl;
1035         struct ieee80211_hw *hw;
1036         u32 val;
1037
1038         ASSERT(pdev);
1039
1040         WL_TRACE("%s: bus %d slot %d func %d irq %d\n",
1041                  __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
1042                  PCI_FUNC(pdev->devfn), pdev->irq);
1043
1044         if ((pdev->vendor != PCI_VENDOR_ID_BROADCOM) ||
1045             (((pdev->device & 0xff00) != 0x4300) &&
1046              ((pdev->device & 0xff00) != 0x4700) &&
1047              ((pdev->device < 43000) || (pdev->device > 43999))))
1048                 return -ENODEV;
1049
1050         rc = pci_enable_device(pdev);
1051         if (rc) {
1052                 WL_ERROR("%s: Cannot enable device %d-%d_%d\n",
1053                          __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
1054                          PCI_FUNC(pdev->devfn));
1055                 return -ENODEV;
1056         }
1057         pci_set_master(pdev);
1058
1059         pci_read_config_dword(pdev, 0x40, &val);
1060         if ((val & 0x0000ff00) != 0)
1061                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1062
1063         hw = ieee80211_alloc_hw(sizeof(struct wl_info), &wl_ops);
1064         if (!hw) {
1065                 WL_ERROR("%s: ieee80211_alloc_hw failed\n", __func__);
1066                 rc = -ENOMEM;
1067                 goto err_1;
1068         }
1069
1070         SET_IEEE80211_DEV(hw, &pdev->dev);
1071
1072         pci_set_drvdata(pdev, hw);
1073
1074         memset(hw->priv, 0, sizeof(*wl));
1075
1076         wl = wl_attach(pdev->vendor, pdev->device, pci_resource_start(pdev, 0),
1077                        PCI_BUS, pdev, pdev->irq);
1078
1079         if (!wl) {
1080                 WL_ERROR("%s: %s: wl_attach failed!\n",
1081                          KBUILD_MODNAME, __func__);
1082                 return -ENODEV;
1083         }
1084         return 0;
1085  err_1:
1086         WL_ERROR("%s: err_1: Major hoarkage\n", __func__);
1087         return 0;
1088 }
1089
1090 static int wl_suspend(struct pci_dev *pdev, pm_message_t state)
1091 {
1092         struct wl_info *wl;
1093         struct ieee80211_hw *hw;
1094
1095         WL_TRACE("wl: wl_suspend\n");
1096
1097         hw = pci_get_drvdata(pdev);
1098         wl = HW_TO_WL(hw);
1099         if (!wl) {
1100                 WL_ERROR("wl: wl_suspend: pci_get_drvdata failed\n");
1101                 return -ENODEV;
1102         }
1103
1104         /* only need to flag hw is down for proper resume */
1105         WL_LOCK(wl);
1106         wl->pub->hw_up = false;
1107         WL_UNLOCK(wl);
1108
1109         pci_save_state(pdev);
1110         pci_disable_device(pdev);
1111         return pci_set_power_state(pdev, PCI_D3hot);
1112 }
1113
1114 static int wl_resume(struct pci_dev *pdev)
1115 {
1116         struct wl_info *wl;
1117         struct ieee80211_hw *hw;
1118         int err = 0;
1119         u32 val;
1120
1121         WL_TRACE("wl: wl_resume\n");
1122         hw = pci_get_drvdata(pdev);
1123         wl = HW_TO_WL(hw);
1124         if (!wl) {
1125                 WL_ERROR("wl: wl_resume: pci_get_drvdata failed\n");
1126                 return -ENODEV;
1127         }
1128
1129         err = pci_set_power_state(pdev, PCI_D0);
1130         if (err)
1131                 return err;
1132
1133         pci_restore_state(pdev);
1134
1135         err = pci_enable_device(pdev);
1136         if (err)
1137                 return err;
1138
1139         pci_set_master(pdev);
1140
1141         pci_read_config_dword(pdev, 0x40, &val);
1142         if ((val & 0x0000ff00) != 0)
1143                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1144
1145         /*
1146         *  done. driver will be put in up state
1147         *  in wl_ops_add_interface() call.
1148         */
1149         return err;
1150 }
1151
1152 static void wl_remove(struct pci_dev *pdev)
1153 {
1154         struct wl_info *wl;
1155         struct ieee80211_hw *hw;
1156
1157         hw = pci_get_drvdata(pdev);
1158         wl = HW_TO_WL(hw);
1159         if (!wl) {
1160                 WL_ERROR("wl: wl_remove: pci_get_drvdata failed\n");
1161                 return;
1162         }
1163
1164         /* make sure rfkill is not using driver */
1165         wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
1166         wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
1167
1168         if (!wlc_chipmatch(pdev->vendor, pdev->device)) {
1169                 WL_ERROR("wl: wl_remove: wlc_chipmatch failed\n");
1170                 return;
1171         }
1172         if (wl->wlc) {
1173                 ieee80211_unregister_hw(hw);
1174                 WL_LOCK(wl);
1175                 wl_down(wl);
1176                 WL_UNLOCK(wl);
1177                 WL_NONE("%s: Down\n", __func__);
1178         }
1179         pci_disable_device(pdev);
1180
1181         wl_free(wl);
1182
1183         pci_set_drvdata(pdev, NULL);
1184         ieee80211_free_hw(hw);
1185 }
1186
1187 static struct pci_driver wl_pci_driver = {
1188         .name     = KBUILD_MODNAME,
1189         .probe    = wl_pci_probe,
1190         .suspend  = wl_suspend,
1191         .resume   = wl_resume,
1192         .remove   = __devexit_p(wl_remove),
1193         .id_table = wl_id_table,
1194 };
1195
1196 /**
1197  * This is the main entry point for the WL driver.
1198  *
1199  * This function determines if a device pointed to by pdev is a WL device,
1200  * and if so, performs a wl_attach() on it.
1201  *
1202  */
1203 static int __init wl_module_init(void)
1204 {
1205         int error = -ENODEV;
1206
1207 #ifdef BCMDBG
1208         if (msglevel != 0xdeadbeef)
1209                 wl_msg_level = msglevel;
1210         else {
1211                 char *var = getvar(NULL, "wl_msglevel");
1212                 if (var)
1213                         wl_msg_level = simple_strtoul(var, NULL, 0);
1214         }
1215         {
1216                 extern u32 phyhal_msg_level;
1217
1218                 if (phymsglevel != 0xdeadbeef)
1219                         phyhal_msg_level = phymsglevel;
1220                 else {
1221                         char *var = getvar(NULL, "phy_msglevel");
1222                         if (var)
1223                                 phyhal_msg_level = simple_strtoul(var, NULL, 0);
1224                 }
1225         }
1226 #endif                          /* BCMDBG */
1227
1228         error = pci_register_driver(&wl_pci_driver);
1229         if (!error)
1230                 return 0;
1231
1232
1233
1234         return error;
1235 }
1236
1237 /**
1238  * This function unloads the WL driver from the system.
1239  *
1240  * This function unconditionally unloads the WL driver module from the
1241  * system.
1242  *
1243  */
1244 static void __exit wl_module_exit(void)
1245 {
1246         pci_unregister_driver(&wl_pci_driver);
1247
1248 }
1249
1250 module_init(wl_module_init);
1251 module_exit(wl_module_exit);
1252
1253 /**
1254  * This function frees the WL per-device resources.
1255  *
1256  * This function frees resources owned by the WL device pointed to
1257  * by the wl parameter.
1258  *
1259  */
1260 void wl_free(struct wl_info *wl)
1261 {
1262         wl_timer_t *t, *next;
1263         struct osl_info *osh;
1264
1265         ASSERT(wl);
1266         /* free ucode data */
1267         if (wl->fw.fw_cnt)
1268                 wl_ucode_data_free();
1269         if (wl->irq)
1270                 free_irq(wl->irq, wl);
1271
1272         /* kill dpc */
1273         tasklet_kill(&wl->tasklet);
1274
1275         if (wl->pub) {
1276                 wlc_module_unregister(wl->pub, "linux", wl);
1277         }
1278
1279         /* free common resources */
1280         if (wl->wlc) {
1281                 wlc_detach(wl->wlc);
1282                 wl->wlc = NULL;
1283                 wl->pub = NULL;
1284         }
1285
1286         /* virtual interface deletion is deferred so we cannot spinwait */
1287
1288         /* wait for all pending callbacks to complete */
1289         while (atomic_read(&wl->callbacks) > 0)
1290                 schedule();
1291
1292         /* free timers */
1293         for (t = wl->timers; t; t = next) {
1294                 next = t->next;
1295 #ifdef BCMDBG
1296                 if (t->name)
1297                         kfree(t->name);
1298 #endif
1299                 kfree(t);
1300         }
1301
1302         osh = wl->osh;
1303
1304         /*
1305          * unregister_netdev() calls get_stats() which may read chip registers
1306          * so we cannot unmap the chip registers until after calling unregister_netdev() .
1307          */
1308         if (wl->regsva && wl->bcm_bustype != SDIO_BUS &&
1309             wl->bcm_bustype != JTAG_BUS) {
1310                 iounmap((void *)wl->regsva);
1311         }
1312         wl->regsva = NULL;
1313
1314
1315         osl_detach(osh);
1316 }
1317
1318 /* transmit a packet */
1319 static int BCMFASTPATH wl_start(struct sk_buff *skb, struct wl_info *wl)
1320 {
1321         if (!wl)
1322                 return -ENETDOWN;
1323
1324         return wl_start_int(wl, WL_TO_HW(wl), skb);
1325 }
1326
1327 static int BCMFASTPATH
1328 wl_start_int(struct wl_info *wl, struct ieee80211_hw *hw, struct sk_buff *skb)
1329 {
1330         wlc_sendpkt_mac80211(wl->wlc, skb, hw);
1331         return NETDEV_TX_OK;
1332 }
1333
1334 void wl_txflowcontrol(struct wl_info *wl, struct wl_if *wlif, bool state,
1335                       int prio)
1336 {
1337         WL_ERROR("Shouldn't be here %s\n", __func__);
1338 }
1339
1340 void wl_init(struct wl_info *wl)
1341 {
1342         WL_TRACE("wl%d: wl_init\n", wl->pub->unit);
1343
1344         wl_reset(wl);
1345
1346         wlc_init(wl->wlc);
1347 }
1348
1349 uint wl_reset(struct wl_info *wl)
1350 {
1351         WL_TRACE("wl%d: wl_reset\n", wl->pub->unit);
1352
1353         wlc_reset(wl->wlc);
1354
1355         /* dpc will not be rescheduled */
1356         wl->resched = 0;
1357
1358         return 0;
1359 }
1360
1361 /*
1362  * These are interrupt on/off entry points. Disable interrupts
1363  * during interrupt state transition.
1364  */
1365 void BCMFASTPATH wl_intrson(struct wl_info *wl)
1366 {
1367         unsigned long flags;
1368
1369         INT_LOCK(wl, flags);
1370         wlc_intrson(wl->wlc);
1371         INT_UNLOCK(wl, flags);
1372 }
1373
1374 bool wl_alloc_dma_resources(struct wl_info *wl, uint addrwidth)
1375 {
1376         return true;
1377 }
1378
1379 u32 BCMFASTPATH wl_intrsoff(struct wl_info *wl)
1380 {
1381         unsigned long flags;
1382         u32 status;
1383
1384         INT_LOCK(wl, flags);
1385         status = wlc_intrsoff(wl->wlc);
1386         INT_UNLOCK(wl, flags);
1387         return status;
1388 }
1389
1390 void wl_intrsrestore(struct wl_info *wl, u32 macintmask)
1391 {
1392         unsigned long flags;
1393
1394         INT_LOCK(wl, flags);
1395         wlc_intrsrestore(wl->wlc, macintmask);
1396         INT_UNLOCK(wl, flags);
1397 }
1398
1399 int wl_up(struct wl_info *wl)
1400 {
1401         int error = 0;
1402
1403         if (wl->pub->up)
1404                 return 0;
1405
1406         error = wlc_up(wl->wlc);
1407
1408         return error;
1409 }
1410
1411 void wl_down(struct wl_info *wl)
1412 {
1413         uint callbacks, ret_val = 0;
1414
1415         /* call common down function */
1416         ret_val = wlc_down(wl->wlc);
1417         callbacks = atomic_read(&wl->callbacks) - ret_val;
1418
1419         /* wait for down callbacks to complete */
1420         WL_UNLOCK(wl);
1421
1422         /* For HIGH_only driver, it's important to actually schedule other work,
1423          * not just spin wait since everything runs at schedule level
1424          */
1425         SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1426
1427         WL_LOCK(wl);
1428 }
1429
1430 irqreturn_t BCMFASTPATH wl_isr(int irq, void *dev_id)
1431 {
1432         struct wl_info *wl;
1433         bool ours, wantdpc;
1434         unsigned long flags;
1435
1436         wl = (struct wl_info *) dev_id;
1437
1438         WL_ISRLOCK(wl, flags);
1439
1440         /* call common first level interrupt handler */
1441         ours = wlc_isr(wl->wlc, &wantdpc);
1442         if (ours) {
1443                 /* if more to do... */
1444                 if (wantdpc) {
1445
1446                         /* ...and call the second level interrupt handler */
1447                         /* schedule dpc */
1448                         ASSERT(wl->resched == false);
1449                         tasklet_schedule(&wl->tasklet);
1450                 }
1451         }
1452
1453         WL_ISRUNLOCK(wl, flags);
1454
1455         return IRQ_RETVAL(ours);
1456 }
1457
1458 static void BCMFASTPATH wl_dpc(unsigned long data)
1459 {
1460         struct wl_info *wl;
1461
1462         wl = (struct wl_info *) data;
1463
1464         WL_LOCK(wl);
1465
1466         /* call the common second level interrupt handler */
1467         if (wl->pub->up) {
1468                 if (wl->resched) {
1469                         unsigned long flags;
1470
1471                         INT_LOCK(wl, flags);
1472                         wlc_intrsupd(wl->wlc);
1473                         INT_UNLOCK(wl, flags);
1474                 }
1475
1476                 wl->resched = wlc_dpc(wl->wlc, true);
1477         }
1478
1479         /* wlc_dpc() may bring the driver down */
1480         if (!wl->pub->up)
1481                 goto done;
1482
1483         /* re-schedule dpc */
1484         if (wl->resched)
1485                 tasklet_schedule(&wl->tasklet);
1486         else {
1487                 /* re-enable interrupts */
1488                 wl_intrson(wl);
1489         }
1490
1491  done:
1492         WL_UNLOCK(wl);
1493 }
1494
1495 static void wl_link_up(struct wl_info *wl, char *ifname)
1496 {
1497         WL_NONE("wl%d: link up (%s)\n", wl->pub->unit, ifname);
1498 }
1499
1500 static void wl_link_down(struct wl_info *wl, char *ifname)
1501 {
1502         WL_NONE("wl%d: link down (%s)\n", wl->pub->unit, ifname);
1503 }
1504
1505 void wl_event(struct wl_info *wl, char *ifname, wlc_event_t *e)
1506 {
1507
1508         switch (e->event.event_type) {
1509         case WLC_E_LINK:
1510         case WLC_E_NDIS_LINK:
1511                 if (e->event.flags & WLC_EVENT_MSG_LINK)
1512                         wl_link_up(wl, ifname);
1513                 else
1514                         wl_link_down(wl, ifname);
1515                 break;
1516         case WLC_E_RADIO:
1517                 break;
1518         }
1519 }
1520
1521 static void wl_timer(unsigned long data)
1522 {
1523         _wl_timer((wl_timer_t *) data);
1524 }
1525
1526 static void _wl_timer(wl_timer_t *t)
1527 {
1528         WL_LOCK(t->wl);
1529
1530         if (t->set) {
1531                 if (t->periodic) {
1532                         t->timer.expires = jiffies + t->ms * HZ / 1000;
1533                         atomic_inc(&t->wl->callbacks);
1534                         add_timer(&t->timer);
1535                         t->set = true;
1536                 } else
1537                         t->set = false;
1538
1539                 t->fn(t->arg);
1540         }
1541
1542         atomic_dec(&t->wl->callbacks);
1543
1544         WL_UNLOCK(t->wl);
1545 }
1546
1547 wl_timer_t *wl_init_timer(struct wl_info *wl, void (*fn) (void *arg), void *arg,
1548                           const char *name)
1549 {
1550         wl_timer_t *t;
1551
1552         t = kmalloc(sizeof(wl_timer_t), GFP_ATOMIC);
1553         if (!t) {
1554                 WL_ERROR("wl%d: wl_init_timer: out of memory\n", wl->pub->unit);
1555                 return 0;
1556         }
1557
1558         memset(t, 0, sizeof(wl_timer_t));
1559
1560         init_timer(&t->timer);
1561         t->timer.data = (unsigned long) t;
1562         t->timer.function = wl_timer;
1563         t->wl = wl;
1564         t->fn = fn;
1565         t->arg = arg;
1566         t->next = wl->timers;
1567         wl->timers = t;
1568
1569 #ifdef BCMDBG
1570         t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC);
1571         if (t->name)
1572                 strcpy(t->name, name);
1573 #endif
1574
1575         return t;
1576 }
1577
1578 /* BMAC_NOTE: Add timer adds only the kernel timer since it's going to be more accurate
1579  * as well as it's easier to make it periodic
1580  */
1581 void wl_add_timer(struct wl_info *wl, wl_timer_t *t, uint ms, int periodic)
1582 {
1583 #ifdef BCMDBG
1584         if (t->set) {
1585                 WL_ERROR("%s: Already set. Name: %s, per %d\n",
1586                          __func__, t->name, periodic);
1587         }
1588 #endif
1589         ASSERT(!t->set);
1590
1591         t->ms = ms;
1592         t->periodic = (bool) periodic;
1593         t->set = true;
1594         t->timer.expires = jiffies + ms * HZ / 1000;
1595
1596         atomic_inc(&wl->callbacks);
1597         add_timer(&t->timer);
1598 }
1599
1600 /* return true if timer successfully deleted, false if still pending */
1601 bool wl_del_timer(struct wl_info *wl, wl_timer_t *t)
1602 {
1603         if (t->set) {
1604                 t->set = false;
1605                 if (!del_timer(&t->timer)) {
1606                         return false;
1607                 }
1608                 atomic_dec(&wl->callbacks);
1609         }
1610
1611         return true;
1612 }
1613
1614 void wl_free_timer(struct wl_info *wl, wl_timer_t *t)
1615 {
1616         wl_timer_t *tmp;
1617
1618         /* delete the timer in case it is active */
1619         wl_del_timer(wl, t);
1620
1621         if (wl->timers == t) {
1622                 wl->timers = wl->timers->next;
1623 #ifdef BCMDBG
1624                 if (t->name)
1625                         kfree(t->name);
1626 #endif
1627                 kfree(t);
1628                 return;
1629
1630         }
1631
1632         tmp = wl->timers;
1633         while (tmp) {
1634                 if (tmp->next == t) {
1635                         tmp->next = t->next;
1636 #ifdef BCMDBG
1637                         if (t->name)
1638                                 kfree(t->name);
1639 #endif
1640                         kfree(t);
1641                         return;
1642                 }
1643                 tmp = tmp->next;
1644         }
1645
1646 }
1647
1648 static int wl_linux_watchdog(void *ctx)
1649 {
1650         struct wl_info *wl = (struct wl_info *) ctx;
1651         struct net_device_stats *stats = NULL;
1652         uint id;
1653         /* refresh stats */
1654         if (wl->pub->up) {
1655                 ASSERT(wl->stats_id < 2);
1656
1657                 id = 1 - wl->stats_id;
1658
1659                 stats = &wl->stats_watchdog[id];
1660                 stats->rx_packets = WLCNTVAL(wl->pub->_cnt->rxframe);
1661                 stats->tx_packets = WLCNTVAL(wl->pub->_cnt->txframe);
1662                 stats->rx_bytes = WLCNTVAL(wl->pub->_cnt->rxbyte);
1663                 stats->tx_bytes = WLCNTVAL(wl->pub->_cnt->txbyte);
1664                 stats->rx_errors = WLCNTVAL(wl->pub->_cnt->rxerror);
1665                 stats->tx_errors = WLCNTVAL(wl->pub->_cnt->txerror);
1666                 stats->collisions = 0;
1667
1668                 stats->rx_length_errors = 0;
1669                 stats->rx_over_errors = WLCNTVAL(wl->pub->_cnt->rxoflo);
1670                 stats->rx_crc_errors = WLCNTVAL(wl->pub->_cnt->rxcrc);
1671                 stats->rx_frame_errors = 0;
1672                 stats->rx_fifo_errors = WLCNTVAL(wl->pub->_cnt->rxoflo);
1673                 stats->rx_missed_errors = 0;
1674
1675                 stats->tx_fifo_errors = WLCNTVAL(wl->pub->_cnt->txuflo);
1676
1677                 wl->stats_id = id;
1678
1679         }
1680
1681         return 0;
1682 }
1683
1684 struct wl_fw_hdr {
1685         u32 offset;
1686         u32 len;
1687         u32 idx;
1688 };
1689
1690 char *wl_firmwares[WL_MAX_FW] = {
1691         "brcm/bcm43xx",
1692         NULL
1693 };
1694
1695 int wl_ucode_init_buf(struct wl_info *wl, void **pbuf, u32 idx)
1696 {
1697         int i, entry;
1698         const u8 *pdata;
1699         struct wl_fw_hdr *hdr;
1700         for (i = 0; i < wl->fw.fw_cnt; i++) {
1701                 hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
1702                 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1703                      entry++, hdr++) {
1704                         if (hdr->idx == idx) {
1705                                 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1706                                 *pbuf = kmalloc(hdr->len, GFP_ATOMIC);
1707                                 if (*pbuf == NULL) {
1708                                         printf("fail to alloc %d bytes\n",
1709                                                hdr->len);
1710                                 }
1711                                 bcopy(pdata, *pbuf, hdr->len);
1712                                 return 0;
1713                         }
1714                 }
1715         }
1716         printf("ERROR: ucode buf tag:%d can not be found!\n", idx);
1717         *pbuf = NULL;
1718         return -1;
1719 }
1720
1721 int wl_ucode_init_uint(struct wl_info *wl, u32 *data, u32 idx)
1722 {
1723         int i, entry;
1724         const u8 *pdata;
1725         struct wl_fw_hdr *hdr;
1726         for (i = 0; i < wl->fw.fw_cnt; i++) {
1727                 hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
1728                 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1729                      entry++, hdr++) {
1730                         if (hdr->idx == idx) {
1731                                 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1732                                 ASSERT(hdr->len == 4);
1733                                 *data = *((u32 *) pdata);
1734                                 return 0;
1735                         }
1736                 }
1737         }
1738         printf("ERROR: ucode tag:%d can not be found!\n", idx);
1739         return -1;
1740 }
1741
1742 static int wl_request_fw(struct wl_info *wl, struct pci_dev *pdev)
1743 {
1744         int status;
1745         struct device *device = &pdev->dev;
1746         char fw_name[100];
1747         int i;
1748
1749         memset((void *)&wl->fw, 0, sizeof(struct wl_firmware));
1750         for (i = 0; i < WL_MAX_FW; i++) {
1751                 if (wl_firmwares[i] == NULL)
1752                         break;
1753                 sprintf(fw_name, "%s-%d.fw", wl_firmwares[i],
1754                         UCODE_LOADER_API_VER);
1755                 WL_NONE("request fw %s\n", fw_name);
1756                 status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
1757                 if (status) {
1758                         printf("%s: fail to load firmware %s\n",
1759                                 KBUILD_MODNAME, fw_name);
1760                         wl_release_fw(wl);
1761                         return status;
1762                 }
1763                 WL_NONE("request fw %s\n", fw_name);
1764                 sprintf(fw_name, "%s_hdr-%d.fw", wl_firmwares[i],
1765                         UCODE_LOADER_API_VER);
1766                 status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
1767                 if (status) {
1768                         printf("%s: fail to load firmware %s\n",
1769                                 KBUILD_MODNAME, fw_name);
1770                         wl_release_fw(wl);
1771                         return status;
1772                 }
1773                 wl->fw.hdr_num_entries[i] =
1774                     wl->fw.fw_hdr[i]->size / (sizeof(struct wl_fw_hdr));
1775                 WL_NONE("request fw %s find: %d entries\n",
1776                         fw_name, wl->fw.hdr_num_entries[i]);
1777         }
1778         wl->fw.fw_cnt = i;
1779         return wl_ucode_data_init(wl);
1780 }
1781
1782 void wl_ucode_free_buf(void *p)
1783 {
1784         kfree(p);
1785 }
1786
1787 static void wl_release_fw(struct wl_info *wl)
1788 {
1789         int i;
1790         for (i = 0; i < WL_MAX_FW; i++) {
1791                 release_firmware(wl->fw.fw_bin[i]);
1792                 release_firmware(wl->fw.fw_hdr[i]);
1793         }
1794 }
1795
1796
1797 /*
1798  * checks validity of all firmware images loaded from user space
1799  */
1800 int wl_check_firmwares(struct wl_info *wl)
1801 {
1802         int i;
1803         int entry;
1804         int rc = 0;
1805         const struct firmware *fw;
1806         const struct firmware *fw_hdr;
1807         struct wl_fw_hdr *ucode_hdr;
1808         for (i = 0; i < WL_MAX_FW && rc == 0; i++) {
1809                 fw =  wl->fw.fw_bin[i];
1810                 fw_hdr = wl->fw.fw_hdr[i];
1811                 if (fw == NULL && fw_hdr == NULL) {
1812                         break;
1813                 } else if (fw == NULL || fw_hdr == NULL) {
1814                         WL_ERROR("%s: invalid bin/hdr fw\n", __func__);
1815                         rc = -EBADF;
1816                 } else if (fw_hdr->size % sizeof(struct wl_fw_hdr)) {
1817                         WL_ERROR("%s: non integral fw hdr file size %d/%zu\n",
1818                                  __func__, fw_hdr->size,
1819                                  sizeof(struct wl_fw_hdr));
1820                         rc = -EBADF;
1821                 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1822                         WL_ERROR("%s: out of bounds fw file size %d\n",
1823                                  __func__, fw->size);
1824                         rc = -EBADF;
1825                 } else {
1826                         /* check if ucode section overruns firmware image */
1827                         ucode_hdr = (struct wl_fw_hdr *)fw_hdr->data;
1828                         for (entry = 0; entry < wl->fw.hdr_num_entries[i] && rc;
1829                              entry++, ucode_hdr++) {
1830                                 if (ucode_hdr->offset + ucode_hdr->len >
1831                                     fw->size) {
1832                                         WL_ERROR("%s: conflicting bin/hdr\n",
1833                                                  __func__);
1834                                         rc = -EBADF;
1835                                 }
1836                         }
1837                 }
1838         }
1839         if (rc == 0 && wl->fw.fw_cnt != i) {
1840                 WL_ERROR("%s: invalid fw_cnt=%d\n", __func__, wl->fw.fw_cnt);
1841                 rc = -EBADF;
1842         }
1843         return rc;
1844 }
1845
1846 bool wl_rfkill_set_hw_state(struct wl_info *wl)
1847 {
1848         bool blocked = wlc_check_radio_disabled(wl->wlc);
1849
1850         WL_NONE("%s: update hw state: blocked=%s\n", __func__,
1851                 blocked ? "true" : "false");
1852         wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1853         if (blocked)
1854                 wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
1855         return blocked;
1856 }