Pileus Git - ~andy/linux/blob - drivers/staging/brcm80211/sys/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 struct ieee80211_tkip_data {
  72 #define TKIP_KEY_LEN 32
  73         u8 key[TKIP_KEY_LEN];
  74         int key_set;
  75
  76         u32 tx_iv32;
  77         u16 tx_iv16;
  78         u16 tx_ttak[5];
  79         int tx_phase1_done;
  80
  81         u32 rx_iv32;
  82         u16 rx_iv16;
  83         u16 rx_ttak[5];
  84         int rx_phase1_done;
  85         u32 rx_iv32_new;
  86         u16 rx_iv16_new;
  87
  88         u32 dot11RSNAStatsTKIPReplays;
  89         u32 dot11RSNAStatsTKIPICVErrors;
  90         u32 dot11RSNAStatsTKIPLocalMICFailures;
  91
  92         int key_idx;
  93
  94         struct crypto_tfm *tfm_arc4;
  95         struct crypto_tfm *tfm_michael;
  96
  97         /* scratch buffers for virt_to_page() (crypto API) */
  98         u8 rx_hdr[16], tx_hdr[16];
  99 };
 100
 101 #define WL_DEV_IF(dev)          ((struct wl_if *)netdev_priv(dev))
 102 #define WL_INFO(dev)            ((struct wl_info *)(WL_DEV_IF(dev)->wl))
 103 static int wl_request_fw(struct wl_info *wl, struct pci_dev *pdev);
 104 static void wl_release_fw(struct wl_info *wl);
 105
 106 /* local prototypes */
 107 static void wl_dpc(unsigned long data);
 108
 109 MODULE_AUTHOR("Broadcom Corporation");
 110 MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver.");
 111 MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards");
 112 MODULE_LICENSE("Dual BSD/GPL");
 113
 114 /* recognized PCI IDs */
 115 static struct pci_device_id wl_id_table[] = {
 116         {PCI_VENDOR_ID_BROADCOM, 0x4357, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},      /* 43225 2G */
 117         {PCI_VENDOR_ID_BROADCOM, 0x4353, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},      /* 43224 DUAL */
 118         {PCI_VENDOR_ID_BROADCOM, 0x4727, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},      /* 4313 DUAL */
 119         {0}
 120 };
 121
 122 MODULE_DEVICE_TABLE(pci, wl_id_table);
 123 static void wl_remove(struct pci_dev *pdev);
 124
 125
 126 #ifdef BCMDBG
 127 static int msglevel = 0xdeadbeef;
 128 module_param(msglevel, int, 0);
 129 static int phymsglevel = 0xdeadbeef;
 130 module_param(phymsglevel, int, 0);
 131 #endif                          /* BCMDBG */
 132
 133 #define HW_TO_WL(hw)     (hw->priv)
 134 #define WL_TO_HW(wl)      (wl->pub->ieee_hw)
 135 static int wl_ops_start(struct ieee80211_hw *hw);
 136 static void wl_ops_stop(struct ieee80211_hw *hw);
 137 static int wl_ops_add_interface(struct ieee80211_hw *hw,
 138                                 struct ieee80211_vif *vif);
 139 static void wl_ops_remove_interface(struct ieee80211_hw *hw,
 140                                     struct ieee80211_vif *vif);
 141 static int wl_ops_config(struct ieee80211_hw *hw, u32 changed);
 142 static void wl_ops_bss_info_changed(struct ieee80211_hw *hw,
 143                                     struct ieee80211_vif *vif,
 144                                     struct ieee80211_bss_conf *info,
 145                                     u32 changed);
 146 static void wl_ops_configure_filter(struct ieee80211_hw *hw,
 147                                     unsigned int changed_flags,
 148                                     unsigned int *total_flags, u64 multicast);
 149 static int wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
 150                           bool set);
 151 static void wl_ops_sw_scan_start(struct ieee80211_hw *hw);
 152 static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw);
 153 static void wl_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf);
 154 static int wl_ops_get_stats(struct ieee80211_hw *hw,
 155                             struct ieee80211_low_level_stats *stats);
 156 static int wl_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
 157 static void wl_ops_sta_notify(struct ieee80211_hw *hw,
 158                               struct ieee80211_vif *vif,
 159                               enum sta_notify_cmd cmd,
 160                               struct ieee80211_sta *sta);
 161 static int wl_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
 162                           const struct ieee80211_tx_queue_params *params);
 163 static u64 wl_ops_get_tsf(struct ieee80211_hw *hw);
 164 static int wl_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 165                       struct ieee80211_sta *sta);
 166 static int wl_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 167                          struct ieee80211_sta *sta);
 168 static int wl_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 169                            enum ieee80211_ampdu_mlme_action action,
 170                            struct ieee80211_sta *sta, u16 tid, u16 *ssn);
 171
 172 static void wl_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 173 {
 174         struct wl_info *wl = hw->priv;
 175         WL_LOCK(wl);
 176         if (!wl->pub->up) {
 177                 WL_ERROR("ops->tx called while down\n");
 178                 kfree_skb(skb);
 179                 goto done;
 180         }
 181         wlc_sendpkt_mac80211(wl->wlc, skb, hw);
 182  done:
 183         WL_UNLOCK(wl);
 184 }
 185
 186 static int wl_ops_start(struct ieee80211_hw *hw)
 187 {
 188         struct wl_info *wl = hw->priv;
 189         /*
 190           struct ieee80211_channel *curchan = hw->conf.channel;
 191           WL_NONE("%s : Initial channel: %d\n", __func__, curchan->hw_value);
 192         */
 193
 194         WL_LOCK(wl);
 195         ieee80211_wake_queues(hw);
 196         WL_UNLOCK(wl);
 197
 198         return 0;
 199 }
 200
 201 static void wl_ops_stop(struct ieee80211_hw *hw)
 202 {
 203         struct wl_info *wl = hw->priv;
 204         ASSERT(wl);
 205         WL_LOCK(wl);
 206         wl_down(wl);
 207         ieee80211_stop_queues(hw);
 208         WL_UNLOCK(wl);
 209
 210         return;
 211 }
 212
 213 static int
 214 wl_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 215 {
 216         struct wl_info *wl;
 217         int err;
 218
 219         /* Just STA for now */
 220         if (vif->type != NL80211_IFTYPE_AP &&
 221             vif->type != NL80211_IFTYPE_MESH_POINT &&
 222             vif->type != NL80211_IFTYPE_STATION &&
 223             vif->type != NL80211_IFTYPE_WDS &&
 224             vif->type != NL80211_IFTYPE_ADHOC) {
 225                 WL_ERROR("%s: Attempt to add type %d, only STA for now\n",
 226                          __func__, vif->type);
 227                 return -EOPNOTSUPP;
 228         }
 229
 230         wl = HW_TO_WL(hw);
 231         WL_LOCK(wl);
 232         err = wl_up(wl);
 233         WL_UNLOCK(wl);
 234
 235         if (err != 0)
 236                 WL_ERROR("%s: wl_up() returned %d\n", __func__, err);
 237         return err;
 238 }
 239
 240 static void
 241 wl_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 242 {
 243         return;
 244 }
 245
 246 static int
 247 ieee_set_channel(struct ieee80211_hw *hw, struct ieee80211_channel *chan,
 248                  enum nl80211_channel_type type)
 249 {
 250         struct wl_info *wl = HW_TO_WL(hw);
 251         int err = 0;
 252
 253         switch (type) {
 254         case NL80211_CHAN_HT20:
 255         case NL80211_CHAN_NO_HT:
 256                 WL_LOCK(wl);
 257                 err = wlc_set(wl->wlc, WLC_SET_CHANNEL, chan->hw_value);
 258                 WL_UNLOCK(wl);
 259                 break;
 260         case NL80211_CHAN_HT40MINUS:
 261         case NL80211_CHAN_HT40PLUS:
 262                 WL_ERROR("%s: Need to implement 40 Mhz Channels!\n", __func__);
 263                 break;
 264         }
 265
 266         if (err)
 267                 return -EIO;
 268         return err;
 269 }
 270
 271 static int wl_ops_config(struct ieee80211_hw *hw, u32 changed)
 272 {
 273         struct ieee80211_conf *conf = &hw->conf;
 274         struct wl_info *wl = HW_TO_WL(hw);
 275         int err = 0;
 276         int new_int;
 277
 278         if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
 279                 WL_NONE("%s: Setting listen interval to %d\n",
 280                         __func__, conf->listen_interval);
 281                 if (wlc_iovar_setint
 282                     (wl->wlc, "bcn_li_bcn", conf->listen_interval)) {
 283                         WL_ERROR("%s: Error setting listen_interval\n",
 284                                  __func__);
 285                         err = -EIO;
 286                         goto config_out;
 287                 }
 288                 wlc_iovar_getint(wl->wlc, "bcn_li_bcn", &new_int);
 289                 ASSERT(new_int == conf->listen_interval);
 290         }
 291         if (changed & IEEE80211_CONF_CHANGE_MONITOR)
 292                 WL_NONE("Need to set monitor mode\n");
 293         if (changed & IEEE80211_CONF_CHANGE_PS)
 294                 WL_NONE("Need to set Power-save mode\n");
 295
 296         if (changed & IEEE80211_CONF_CHANGE_POWER) {
 297                 WL_NONE("%s: Setting tx power to %d dbm\n",
 298                         __func__, conf->power_level);
 299                 if (wlc_iovar_setint
 300                     (wl->wlc, "qtxpower", conf->power_level * 4)) {
 301                         WL_ERROR("%s: Error setting power_level\n", __func__);
 302                         err = -EIO;
 303                         goto config_out;
 304                 }
 305                 wlc_iovar_getint(wl->wlc, "qtxpower", &new_int);
 306                 if (new_int != (conf->power_level * 4))
 307                         WL_ERROR("%s: Power level req != actual, %d %d\n",
 308                                  __func__, conf->power_level * 4, new_int);
 309         }
 310         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 311                 err = ieee_set_channel(hw, conf->channel, conf->channel_type);
 312         }
 313         if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
 314                 WL_NONE("%s: srl %d, lrl %d\n",
 315                         __func__,
 316                         conf->short_frame_max_tx_count,
 317                         conf->long_frame_max_tx_count);
 318                 if (wlc_set
 319                     (wl->wlc, WLC_SET_SRL,
 320                      conf->short_frame_max_tx_count) < 0) {
 321                         WL_ERROR("%s: Error setting srl\n", __func__);
 322                         err = -EIO;
 323                         goto config_out;
 324                 }
 325                 if (wlc_set(wl->wlc, WLC_SET_LRL, conf->long_frame_max_tx_count)
 326                     < 0) {
 327                         WL_ERROR("%s: Error setting lrl\n", __func__);
 328                         err = -EIO;
 329                         goto config_out;
 330                 }
 331         }
 332
 333  config_out:
 334         return err;
 335 }
 336
 337 static void
 338 wl_ops_bss_info_changed(struct ieee80211_hw *hw,
 339                         struct ieee80211_vif *vif,
 340                         struct ieee80211_bss_conf *info, u32 changed)
 341 {
 342         struct wl_info *wl = HW_TO_WL(hw);
 343         int val;
 344
 345
 346         if (changed & BSS_CHANGED_ASSOC) {
 347                 WL_ERROR("Associated:\t%s\n", info->assoc ? "True" : "False");
 348                 /* association status changed (associated/disassociated)
 349                  * also implies a change in the AID.
 350                  */
 351         }
 352         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 353                 WL_NONE("Use_cts_prot:\t%s Implement me\n",
 354                         info->use_cts_prot ? "True" : "False");
 355                 /* CTS protection changed */
 356         }
 357         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 358                 WL_NONE("Short preamble:\t%s Implement me\n",
 359                         info->use_short_preamble ? "True" : "False");
 360                 /* preamble changed */
 361         }
 362         if (changed & BSS_CHANGED_ERP_SLOT) {
 363                 WL_NONE("Changing short slot:\t%s\n",
 364                         info->use_short_slot ? "True" : "False");
 365                 if (info->use_short_slot)
 366                         val = 1;
 367                 else
 368                         val = 0;
 369                 wlc_set(wl->wlc, WLC_SET_SHORTSLOT_OVERRIDE, val);
 370                 /* slot timing changed */
 371         }
 372
 373         if (changed & BSS_CHANGED_HT) {
 374                 WL_NONE("%s: HT mode - Implement me\n", __func__);
 375                 /* 802.11n parameters changed */
 376         }
 377         if (changed & BSS_CHANGED_BASIC_RATES) {
 378                 WL_NONE("Need to change Basic Rates:\t0x%x! Implement me\n",
 379                         (u32) info->basic_rates);
 380                 /* Basic rateset changed */
 381         }
 382         if (changed & BSS_CHANGED_BEACON_INT) {
 383                 WL_NONE("Beacon Interval:\t%d Implement me\n",
 384                         info->beacon_int);
 385                 /* Beacon interval changed */
 386         }
 387         if (changed & BSS_CHANGED_BSSID) {
 388                 WL_NONE("new BSSID:\taid %d  bss:%pM\n",
 389                         info->aid, info->bssid);
 390                 /* BSSID changed, for whatever reason (IBSS and managed mode) */
 391                 /* FIXME: need to store bssid in bsscfg */
 392                 wlc_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET,
 393                                   (struct ether_addr *)info->bssid);
 394         }
 395         if (changed & BSS_CHANGED_BEACON) {
 396                 WL_ERROR("BSS_CHANGED_BEACON\n");
 397                 /* Beacon data changed, retrieve new beacon (beaconing modes) */
 398         }
 399         if (changed & BSS_CHANGED_BEACON_ENABLED) {
 400                 WL_ERROR("Beacon enabled:\t%s\n",
 401                          info->enable_beacon ? "True" : "False");
 402                 /* Beaconing should be enabled/disabled (beaconing modes) */
 403         }
 404         return;
 405 }
 406
 407 static void
 408 wl_ops_configure_filter(struct ieee80211_hw *hw,
 409                         unsigned int changed_flags,
 410                         unsigned int *total_flags, u64 multicast)
 411 {
 412         struct wl_info *wl = hw->priv;
 413
 414         changed_flags &= MAC_FILTERS;
 415         *total_flags &= MAC_FILTERS;
 416         if (changed_flags & FIF_PROMISC_IN_BSS)
 417                 WL_ERROR("FIF_PROMISC_IN_BSS\n");
 418         if (changed_flags & FIF_ALLMULTI)
 419                 WL_ERROR("FIF_ALLMULTI\n");
 420         if (changed_flags & FIF_FCSFAIL)
 421                 WL_ERROR("FIF_FCSFAIL\n");
 422         if (changed_flags & FIF_PLCPFAIL)
 423                 WL_ERROR("FIF_PLCPFAIL\n");
 424         if (changed_flags & FIF_CONTROL)
 425                 WL_ERROR("FIF_CONTROL\n");
 426         if (changed_flags & FIF_OTHER_BSS)
 427                 WL_ERROR("FIF_OTHER_BSS\n");
 428         if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
 429                 WL_NONE("FIF_BCN_PRBRESP_PROMISC\n");
 430                 WL_LOCK(wl);
 431                 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
 432                         wl->pub->mac80211_state |= MAC80211_PROMISC_BCNS;
 433                         wlc_mac_bcn_promisc_change(wl->wlc, 1);
 434                 } else {
 435                         wlc_mac_bcn_promisc_change(wl->wlc, 0);
 436                         wl->pub->mac80211_state &= ~MAC80211_PROMISC_BCNS;
 437                 }
 438                 WL_UNLOCK(wl);
 439         }
 440         return;
 441 }
 442
 443 static int
 444 wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
 445 {
 446         WL_ERROR("%s: Enter\n", __func__);
 447         return 0;
 448 }
 449
 450 static void wl_ops_sw_scan_start(struct ieee80211_hw *hw)
 451 {
 452         WL_NONE("Scan Start\n");
 453         return;
 454 }
 455
 456 static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw)
 457 {
 458         WL_NONE("Scan Complete\n");
 459         return;
 460 }
 461
 462 static void wl_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf)
 463 {
 464         WL_ERROR("%s: Enter\n", __func__);
 465         return;
 466 }
 467
 468 static int
 469 wl_ops_get_stats(struct ieee80211_hw *hw,
 470                  struct ieee80211_low_level_stats *stats)
 471 {
 472         WL_ERROR("%s: Enter\n", __func__);
 473         return 0;
 474 }
 475
 476 static int wl_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
 477 {
 478         WL_ERROR("%s: Enter\n", __func__);
 479         return 0;
 480 }
 481
 482 static void
 483 wl_ops_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 484                   enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
 485 {
 486         WL_NONE("%s: Enter\n", __func__);
 487         switch (cmd) {
 488         default:
 489                 WL_ERROR("%s: Unknown cmd = %d\n", __func__, cmd);
 490                 break;
 491         }
 492         return;
 493 }
 494
 495 static int
 496 wl_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
 497                const struct ieee80211_tx_queue_params *params)
 498 {
 499         struct wl_info *wl = hw->priv;
 500
 501         WL_NONE("%s: Enter (WME config)\n", __func__);
 502         WL_NONE("queue %d, txop %d, cwmin %d, cwmax %d, aifs %d\n", queue,
 503                  params->txop, params->cw_min, params->cw_max, params->aifs);
 504
 505         WL_LOCK(wl);
 506         wlc_wme_setparams(wl->wlc, queue, (void *)params, true);
 507         WL_UNLOCK(wl);
 508
 509         return 0;
 510 }
 511
 512 static u64 wl_ops_get_tsf(struct ieee80211_hw *hw)
 513 {
 514         WL_ERROR("%s: Enter\n", __func__);
 515         return 0;
 516 }
 517
 518 static int
 519 wl_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 520            struct ieee80211_sta *sta)
 521 {
 522         struct scb *scb;
 523
 524         int i;
 525         struct wl_info *wl = hw->priv;
 526
 527         /* Init the scb */
 528         scb = (struct scb *)sta->drv_priv;
 529         memset(scb, 0, sizeof(struct scb));
 530         for (i = 0; i < NUMPRIO; i++)
 531                 scb->seqctl[i] = 0xFFFF;
 532         scb->seqctl_nonqos = 0xFFFF;
 533         scb->magic = SCB_MAGIC;
 534
 535         wl->pub->global_scb = scb;
 536         wl->pub->global_ampdu = &(scb->scb_ampdu);
 537         wl->pub->global_ampdu->scb = scb;
 538         wl->pub->global_ampdu->max_pdu = 16;
 539         pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID,
 540                   AMPDU_MAX_SCB_TID * PKTQ_LEN_DEFAULT);
 541
 542         sta->ht_cap.ht_supported = true;
 543         sta->ht_cap.ampdu_factor = AMPDU_RX_FACTOR_64K;
 544         sta->ht_cap.ampdu_density = AMPDU_DEF_MPDU_DENSITY;
 545         sta->ht_cap.cap = IEEE80211_HT_CAP_GRN_FLD |
 546             IEEE80211_HT_CAP_SGI_20 |
 547             IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT;
 548
 549         /* minstrel_ht initiates addBA on our behalf by calling ieee80211_start_tx_ba_session() */
 550         return 0;
 551 }
 552
 553 static int
 554 wl_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 555               struct ieee80211_sta *sta)
 556 {
 557         WL_NONE("%s: Enter\n", __func__);
 558         return 0;
 559 }
 560
 561 static int
 562 wl_ampdu_action(struct ieee80211_hw *hw,
 563                 struct ieee80211_vif *vif,
 564                 enum ieee80211_ampdu_mlme_action action,
 565                 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
 566 {
 567 #if defined(BCMDBG)
 568         struct scb *scb = (struct scb *)sta->drv_priv;
 569 #endif
 570         struct wl_info *wl = hw->priv;
 571
 572         ASSERT(scb->magic == SCB_MAGIC);
 573         switch (action) {
 574         case IEEE80211_AMPDU_RX_START:
 575                 WL_NONE("%s: action = IEEE80211_AMPDU_RX_START\n", __func__);
 576                 break;
 577         case IEEE80211_AMPDU_RX_STOP:
 578                 WL_NONE("%s: action = IEEE80211_AMPDU_RX_STOP\n", __func__);
 579                 break;
 580         case IEEE80211_AMPDU_TX_START:
 581                 if (!wlc_aggregatable(wl->wlc, tid)) {
 582                         /* WL_ERROR("START: tid %d is not agg' able, return FAILURE to stack\n", tid); */
 583                         return -1;
 584                 }
 585                 /* XXX: Use the starting sequence number provided ... */
 586                 *ssn = 0;
 587                 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 588                 break;
 589
 590         case IEEE80211_AMPDU_TX_STOP:
 591                 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 592                 break;
 593         case IEEE80211_AMPDU_TX_OPERATIONAL:
 594                 /* Not sure what to do here */
 595                 /* Power save wakeup */
 596                 WL_NONE("%s: action = IEEE80211_AMPDU_TX_OPERATIONAL\n",
 597                         __func__);
 598                 break;
 599         default:
 600                 WL_ERROR("%s: Invalid command, ignoring\n", __func__);
 601         }
 602
 603         return 0;
 604 }
 605
 606 static const struct ieee80211_ops wl_ops = {
 607         .tx = wl_ops_tx,
 608         .start = wl_ops_start,
 609         .stop = wl_ops_stop,
 610         .add_interface = wl_ops_add_interface,
 611         .remove_interface = wl_ops_remove_interface,
 612         .config = wl_ops_config,
 613         .bss_info_changed = wl_ops_bss_info_changed,
 614         .configure_filter = wl_ops_configure_filter,
 615         .set_tim = wl_ops_set_tim,
 616         .sw_scan_start = wl_ops_sw_scan_start,
 617         .sw_scan_complete = wl_ops_sw_scan_complete,
 618         .set_tsf = wl_ops_set_tsf,
 619         .get_stats = wl_ops_get_stats,
 620         .set_rts_threshold = wl_ops_set_rts_threshold,
 621         .sta_notify = wl_ops_sta_notify,
 622         .conf_tx = wl_ops_conf_tx,
 623         .get_tsf = wl_ops_get_tsf,
 624         .sta_add = wl_sta_add,
 625         .sta_remove = wl_sta_remove,
 626         .ampdu_action = wl_ampdu_action,
 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 #ifdef LINUXSTA_PS
1088 static int wl_suspend(struct pci_dev *pdev, pm_message_t state)
1089 {
1090         struct wl_info *wl;
1091         struct ieee80211_hw *hw;
1092
1093         WL_TRACE("wl: wl_suspend\n");
1094
1095         hw = pci_get_drvdata(pdev);
1096         wl = HW_TO_WL(hw);
1097         if (!wl) {
1098                 WL_ERROR("wl: wl_suspend: pci_get_drvdata failed\n");
1099                 return -ENODEV;
1100         }
1101
1102         WL_LOCK(wl);
1103         wl_down(wl);
1104         wl->pub->hw_up = false;
1105         WL_UNLOCK(wl);
1106         pci_save_state(pdev, wl->pci_psstate);
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, wl->pci_psstate);
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         WL_LOCK(wl);
1143         err = wl_up(wl);
1144         WL_UNLOCK(wl);
1145
1146         return err;
1147 }
1148 #endif                          /* LINUXSTA_PS */
1149
1150 static void wl_remove(struct pci_dev *pdev)
1151 {
1152         struct wl_info *wl;
1153         struct ieee80211_hw *hw;
1154
1155         hw = pci_get_drvdata(pdev);
1156         wl = HW_TO_WL(hw);
1157         if (!wl) {
1158                 WL_ERROR("wl: wl_remove: pci_get_drvdata failed\n");
1159                 return;
1160         }
1161         if (!wlc_chipmatch(pdev->vendor, pdev->device)) {
1162                 WL_ERROR("wl: wl_remove: wlc_chipmatch failed\n");
1163                 return;
1164         }
1165         if (wl->wlc) {
1166                 ieee80211_unregister_hw(hw);
1167                 WL_LOCK(wl);
1168                 wl_down(wl);
1169                 WL_UNLOCK(wl);
1170                 WL_NONE("%s: Down\n", __func__);
1171         }
1172         pci_disable_device(pdev);
1173
1174         wl_free(wl);
1175
1176         pci_set_drvdata(pdev, NULL);
1177         ieee80211_free_hw(hw);
1178 }
1179
1180 static struct pci_driver wl_pci_driver = {
1181  .name  = "brcm80211",
1182  .probe = wl_pci_probe,
1183 #ifdef LINUXSTA_PS
1184  .suspend = wl_suspend,
1185  .resume  = wl_resume,
1186 #endif                          /* LINUXSTA_PS */
1187  .remove   = __devexit_p(wl_remove),
1188  .id_table = wl_id_table,
1189 };
1190
1191 /**
1192  * This is the main entry point for the WL driver.
1193  *
1194  * This function determines if a device pointed to by pdev is a WL device,
1195  * and if so, performs a wl_attach() on it.
1196  *
1197  */
1198 static int __init wl_module_init(void)
1199 {
1200         int error = -ENODEV;
1201
1202 #ifdef BCMDBG
1203         if (msglevel != 0xdeadbeef)
1204                 wl_msg_level = msglevel;
1205         else {
1206                 char *var = getvar(NULL, "wl_msglevel");
1207                 if (var)
1208                         wl_msg_level = simple_strtoul(var, NULL, 0);
1209         }
1210         {
1211                 extern u32 phyhal_msg_level;
1212
1213                 if (phymsglevel != 0xdeadbeef)
1214                         phyhal_msg_level = phymsglevel;
1215                 else {
1216                         char *var = getvar(NULL, "phy_msglevel");
1217                         if (var)
1218                                 phyhal_msg_level = simple_strtoul(var, NULL, 0);
1219                 }
1220         }
1221 #endif                          /* BCMDBG */
1222
1223         error = pci_register_driver(&wl_pci_driver);
1224         if (!error)
1225                 return 0;
1226
1227
1228
1229         return error;
1230 }
1231
1232 /**
1233  * This function unloads the WL driver from the system.
1234  *
1235  * This function unconditionally unloads the WL driver module from the
1236  * system.
1237  *
1238  */
1239 static void __exit wl_module_exit(void)
1240 {
1241         pci_unregister_driver(&wl_pci_driver);
1242
1243 }
1244
1245 module_init(wl_module_init);
1246 module_exit(wl_module_exit);
1247
1248 /**
1249  * This function frees the WL per-device resources.
1250  *
1251  * This function frees resources owned by the WL device pointed to
1252  * by the wl parameter.
1253  *
1254  */
1255 void wl_free(struct wl_info *wl)
1256 {
1257         wl_timer_t *t, *next;
1258         struct osl_info *osh;
1259
1260         ASSERT(wl);
1261         /* free ucode data */
1262         if (wl->fw.fw_cnt)
1263                 wl_ucode_data_free();
1264         if (wl->irq)
1265                 free_irq(wl->irq, wl);
1266
1267         /* kill dpc */
1268         tasklet_kill(&wl->tasklet);
1269
1270         if (wl->pub) {
1271                 wlc_module_unregister(wl->pub, "linux", wl);
1272         }
1273
1274         /* free common resources */
1275         if (wl->wlc) {
1276                 wlc_detach(wl->wlc);
1277                 wl->wlc = NULL;
1278                 wl->pub = NULL;
1279         }
1280
1281         /* virtual interface deletion is deferred so we cannot spinwait */
1282
1283         /* wait for all pending callbacks to complete */
1284         while (atomic_read(&wl->callbacks) > 0)
1285                 schedule();
1286
1287         /* free timers */
1288         for (t = wl->timers; t; t = next) {
1289                 next = t->next;
1290 #ifdef BCMDBG
1291                 if (t->name)
1292                         kfree(t->name);
1293 #endif
1294                 kfree(t);
1295         }
1296
1297         osh = wl->osh;
1298
1299         /*
1300          * unregister_netdev() calls get_stats() which may read chip registers
1301          * so we cannot unmap the chip registers until after calling unregister_netdev() .
1302          */
1303         if (wl->regsva && wl->bcm_bustype != SDIO_BUS &&
1304             wl->bcm_bustype != JTAG_BUS) {
1305                 iounmap((void *)wl->regsva);
1306         }
1307         wl->regsva = NULL;
1308
1309
1310         osl_detach(osh);
1311 }
1312
1313 void wl_txflowcontrol(struct wl_info *wl, struct wl_if *wlif, bool state,
1314                       int prio)
1315 {
1316         WL_ERROR("Shouldn't be here %s\n", __func__);
1317 }
1318
1319 void wl_init(struct wl_info *wl)
1320 {
1321         WL_TRACE("wl%d: wl_init\n", wl->pub->unit);
1322
1323         wl_reset(wl);
1324
1325         wlc_init(wl->wlc);
1326 }
1327
1328 uint wl_reset(struct wl_info *wl)
1329 {
1330         WL_TRACE("wl%d: wl_reset\n", wl->pub->unit);
1331
1332         wlc_reset(wl->wlc);
1333
1334         /* dpc will not be rescheduled */
1335         wl->resched = 0;
1336
1337         return 0;
1338 }
1339
1340 /*
1341  * These are interrupt on/off entry points. Disable interrupts
1342  * during interrupt state transition.
1343  */
1344 void BCMFASTPATH wl_intrson(struct wl_info *wl)
1345 {
1346         unsigned long flags;
1347
1348         INT_LOCK(wl, flags);
1349         wlc_intrson(wl->wlc);
1350         INT_UNLOCK(wl, flags);
1351 }
1352
1353 bool wl_alloc_dma_resources(struct wl_info *wl, uint addrwidth)
1354 {
1355         return true;
1356 }
1357
1358 u32 BCMFASTPATH wl_intrsoff(struct wl_info *wl)
1359 {
1360         unsigned long flags;
1361         u32 status;
1362
1363         INT_LOCK(wl, flags);
1364         status = wlc_intrsoff(wl->wlc);
1365         INT_UNLOCK(wl, flags);
1366         return status;
1367 }
1368
1369 void wl_intrsrestore(struct wl_info *wl, u32 macintmask)
1370 {
1371         unsigned long flags;
1372
1373         INT_LOCK(wl, flags);
1374         wlc_intrsrestore(wl->wlc, macintmask);
1375         INT_UNLOCK(wl, flags);
1376 }
1377
1378 int wl_up(struct wl_info *wl)
1379 {
1380         int error = 0;
1381
1382         if (wl->pub->up)
1383                 return 0;
1384
1385         error = wlc_up(wl->wlc);
1386
1387         return error;
1388 }
1389
1390 void wl_down(struct wl_info *wl)
1391 {
1392         uint callbacks, ret_val = 0;
1393
1394         /* call common down function */
1395         ret_val = wlc_down(wl->wlc);
1396         callbacks = atomic_read(&wl->callbacks) - ret_val;
1397
1398         /* wait for down callbacks to complete */
1399         WL_UNLOCK(wl);
1400
1401         /* For HIGH_only driver, it's important to actually schedule other work,
1402          * not just spin wait since everything runs at schedule level
1403          */
1404         SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1405
1406         WL_LOCK(wl);
1407 }
1408
1409 irqreturn_t BCMFASTPATH wl_isr(int irq, void *dev_id)
1410 {
1411         struct wl_info *wl;
1412         bool ours, wantdpc;
1413         unsigned long flags;
1414
1415         wl = (struct wl_info *) dev_id;
1416
1417         WL_ISRLOCK(wl, flags);
1418
1419         /* call common first level interrupt handler */
1420         ours = wlc_isr(wl->wlc, &wantdpc);
1421         if (ours) {
1422                 /* if more to do... */
1423                 if (wantdpc) {
1424
1425                         /* ...and call the second level interrupt handler */
1426                         /* schedule dpc */
1427                         ASSERT(wl->resched == false);
1428                         tasklet_schedule(&wl->tasklet);
1429                 }
1430         }
1431
1432         WL_ISRUNLOCK(wl, flags);
1433
1434         return IRQ_RETVAL(ours);
1435 }
1436
1437 static void BCMFASTPATH wl_dpc(unsigned long data)
1438 {
1439         struct wl_info *wl;
1440
1441         wl = (struct wl_info *) data;
1442
1443         WL_LOCK(wl);
1444
1445         /* call the common second level interrupt handler */
1446         if (wl->pub->up) {
1447                 if (wl->resched) {
1448                         unsigned long flags;
1449
1450                         INT_LOCK(wl, flags);
1451                         wlc_intrsupd(wl->wlc);
1452                         INT_UNLOCK(wl, flags);
1453                 }
1454
1455                 wl->resched = wlc_dpc(wl->wlc, true);
1456         }
1457
1458         /* wlc_dpc() may bring the driver down */
1459         if (!wl->pub->up)
1460                 goto done;
1461
1462         /* re-schedule dpc */
1463         if (wl->resched)
1464                 tasklet_schedule(&wl->tasklet);
1465         else {
1466                 /* re-enable interrupts */
1467                 wl_intrson(wl);
1468         }
1469
1470  done:
1471         WL_UNLOCK(wl);
1472 }
1473
1474 static void wl_link_up(struct wl_info *wl, char *ifname)
1475 {
1476         WL_ERROR("wl%d: link up (%s)\n", wl->pub->unit, ifname);
1477 }
1478
1479 static void wl_link_down(struct wl_info *wl, char *ifname)
1480 {
1481         WL_ERROR("wl%d: link down (%s)\n", wl->pub->unit, ifname);
1482 }
1483
1484 void wl_event(struct wl_info *wl, char *ifname, wlc_event_t *e)
1485 {
1486
1487         switch (e->event.event_type) {
1488         case WLC_E_LINK:
1489         case WLC_E_NDIS_LINK:
1490                 if (e->event.flags & WLC_EVENT_MSG_LINK)
1491                         wl_link_up(wl, ifname);
1492                 else
1493                         wl_link_down(wl, ifname);
1494                 break;
1495         case WLC_E_RADIO:
1496                 break;
1497         }
1498 }
1499
1500 static void wl_timer(unsigned long data)
1501 {
1502         _wl_timer((wl_timer_t *) data);
1503 }
1504
1505 static void _wl_timer(wl_timer_t *t)
1506 {
1507         WL_LOCK(t->wl);
1508
1509         if (t->set) {
1510                 if (t->periodic) {
1511                         t->timer.expires = jiffies + t->ms * HZ / 1000;
1512                         atomic_inc(&t->wl->callbacks);
1513                         add_timer(&t->timer);
1514                         t->set = true;
1515                 } else
1516                         t->set = false;
1517
1518                 t->fn(t->arg);
1519         }
1520
1521         atomic_dec(&t->wl->callbacks);
1522
1523         WL_UNLOCK(t->wl);
1524 }
1525
1526 wl_timer_t *wl_init_timer(struct wl_info *wl, void (*fn) (void *arg), void *arg,
1527                           const char *name)
1528 {
1529         wl_timer_t *t;
1530
1531         t = kmalloc(sizeof(wl_timer_t), GFP_ATOMIC);
1532         if (!t) {
1533                 WL_ERROR("wl%d: wl_init_timer: out of memory\n", wl->pub->unit);
1534                 return 0;
1535         }
1536
1537         memset(t, 0, sizeof(wl_timer_t));
1538
1539         init_timer(&t->timer);
1540         t->timer.data = (unsigned long) t;
1541         t->timer.function = wl_timer;
1542         t->wl = wl;
1543         t->fn = fn;
1544         t->arg = arg;
1545         t->next = wl->timers;
1546         wl->timers = t;
1547
1548 #ifdef BCMDBG
1549         t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC);
1550         if (t->name)
1551                 strcpy(t->name, name);
1552 #endif
1553
1554         return t;
1555 }
1556
1557 /* BMAC_NOTE: Add timer adds only the kernel timer since it's going to be more accurate
1558  * as well as it's easier to make it periodic
1559  */
1560 void wl_add_timer(struct wl_info *wl, wl_timer_t *t, uint ms, int periodic)
1561 {
1562 #ifdef BCMDBG
1563         if (t->set) {
1564                 WL_ERROR("%s: Already set. Name: %s, per %d\n",
1565                          __func__, t->name, periodic);
1566         }
1567 #endif
1568         ASSERT(!t->set);
1569
1570         t->ms = ms;
1571         t->periodic = (bool) periodic;
1572         t->set = true;
1573         t->timer.expires = jiffies + ms * HZ / 1000;
1574
1575         atomic_inc(&wl->callbacks);
1576         add_timer(&t->timer);
1577 }
1578
1579 /* return true if timer successfully deleted, false if still pending */
1580 bool wl_del_timer(struct wl_info *wl, wl_timer_t *t)
1581 {
1582         if (t->set) {
1583                 t->set = false;
1584                 if (!del_timer(&t->timer)) {
1585                         return false;
1586                 }
1587                 atomic_dec(&wl->callbacks);
1588         }
1589
1590         return true;
1591 }
1592
1593 void wl_free_timer(struct wl_info *wl, wl_timer_t *t)
1594 {
1595         wl_timer_t *tmp;
1596
1597         /* delete the timer in case it is active */
1598         wl_del_timer(wl, t);
1599
1600         if (wl->timers == t) {
1601                 wl->timers = wl->timers->next;
1602 #ifdef BCMDBG
1603                 if (t->name)
1604                         kfree(t->name);
1605 #endif
1606                 kfree(t);
1607                 return;
1608
1609         }
1610
1611         tmp = wl->timers;
1612         while (tmp) {
1613                 if (tmp->next == t) {
1614                         tmp->next = t->next;
1615 #ifdef BCMDBG
1616                         if (t->name)
1617                                 kfree(t->name);
1618 #endif
1619                         kfree(t);
1620                         return;
1621                 }
1622                 tmp = tmp->next;
1623         }
1624
1625 }
1626
1627 static int wl_linux_watchdog(void *ctx)
1628 {
1629         struct wl_info *wl = (struct wl_info *) ctx;
1630         struct net_device_stats *stats = NULL;
1631         uint id;
1632         /* refresh stats */
1633         if (wl->pub->up) {
1634                 ASSERT(wl->stats_id < 2);
1635
1636                 id = 1 - wl->stats_id;
1637
1638                 stats = &wl->stats_watchdog[id];
1639                 stats->rx_packets = WLCNTVAL(wl->pub->_cnt->rxframe);
1640                 stats->tx_packets = WLCNTVAL(wl->pub->_cnt->txframe);
1641                 stats->rx_bytes = WLCNTVAL(wl->pub->_cnt->rxbyte);
1642                 stats->tx_bytes = WLCNTVAL(wl->pub->_cnt->txbyte);
1643                 stats->rx_errors = WLCNTVAL(wl->pub->_cnt->rxerror);
1644                 stats->tx_errors = WLCNTVAL(wl->pub->_cnt->txerror);
1645                 stats->collisions = 0;
1646
1647                 stats->rx_length_errors = 0;
1648                 stats->rx_over_errors = WLCNTVAL(wl->pub->_cnt->rxoflo);
1649                 stats->rx_crc_errors = WLCNTVAL(wl->pub->_cnt->rxcrc);
1650                 stats->rx_frame_errors = 0;
1651                 stats->rx_fifo_errors = WLCNTVAL(wl->pub->_cnt->rxoflo);
1652                 stats->rx_missed_errors = 0;
1653
1654                 stats->tx_fifo_errors = WLCNTVAL(wl->pub->_cnt->txuflo);
1655
1656                 wl->stats_id = id;
1657
1658         }
1659
1660         return 0;
1661 }
1662
1663 struct wl_fw_hdr {
1664         u32 offset;
1665         u32 len;
1666         u32 idx;
1667 };
1668
1669 char *wl_firmwares[WL_MAX_FW] = {
1670         "brcm/bcm43xx",
1671         NULL
1672 };
1673
1674 int wl_ucode_init_buf(struct wl_info *wl, void **pbuf, u32 idx)
1675 {
1676         int i, entry;
1677         const u8 *pdata;
1678         struct wl_fw_hdr *hdr;
1679         for (i = 0; i < wl->fw.fw_cnt; i++) {
1680                 hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
1681                 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1682                      entry++, hdr++) {
1683                         if (hdr->idx == idx) {
1684                                 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1685                                 *pbuf = kmalloc(hdr->len, GFP_ATOMIC);
1686                                 if (*pbuf == NULL) {
1687                                         printf("fail to alloc %d bytes\n",
1688                                                hdr->len);
1689                                 }
1690                                 bcopy(pdata, *pbuf, hdr->len);
1691                                 return 0;
1692                         }
1693                 }
1694         }
1695         printf("ERROR: ucode buf tag:%d can not be found!\n", idx);
1696         *pbuf = NULL;
1697         return -1;
1698 }
1699
1700 int wl_ucode_init_uint(struct wl_info *wl, u32 *data, u32 idx)
1701 {
1702         int i, entry;
1703         const u8 *pdata;
1704         struct wl_fw_hdr *hdr;
1705         for (i = 0; i < wl->fw.fw_cnt; i++) {
1706                 hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
1707                 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1708                      entry++, hdr++) {
1709                         if (hdr->idx == idx) {
1710                                 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1711                                 ASSERT(hdr->len == 4);
1712                                 *data = *((u32 *) pdata);
1713                                 return 0;
1714                         }
1715                 }
1716         }
1717         printf("ERROR: ucode tag:%d can not be found!\n", idx);
1718         return -1;
1719 }
1720
1721 static int wl_request_fw(struct wl_info *wl, struct pci_dev *pdev)
1722 {
1723         int status;
1724         struct device *device = &pdev->dev;
1725         char fw_name[100];
1726         int i;
1727
1728         memset((void *)&wl->fw, 0, sizeof(struct wl_firmware));
1729         for (i = 0; i < WL_MAX_FW; i++) {
1730                 if (wl_firmwares[i] == NULL)
1731                         break;
1732                 sprintf(fw_name, "%s-%d.fw", wl_firmwares[i],
1733                         UCODE_LOADER_API_VER);
1734                 WL_NONE("request fw %s\n", fw_name);
1735                 status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
1736                 if (status) {
1737                         printf("%s: fail to load firmware %s\n",
1738                                 KBUILD_MODNAME, fw_name);
1739                         wl_release_fw(wl);
1740                         return status;
1741                 }
1742                 WL_NONE("request fw %s\n", fw_name);
1743                 sprintf(fw_name, "%s_hdr-%d.fw", wl_firmwares[i],
1744                         UCODE_LOADER_API_VER);
1745                 status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
1746                 if (status) {
1747                         printf("%s: fail to load firmware %s\n",
1748                                 KBUILD_MODNAME, fw_name);
1749                         wl_release_fw(wl);
1750                         return status;
1751                 }
1752                 wl->fw.hdr_num_entries[i] =
1753                     wl->fw.fw_hdr[i]->size / (sizeof(struct wl_fw_hdr));
1754                 WL_NONE("request fw %s find: %d entries\n",
1755                         fw_name, wl->fw.hdr_num_entries[i]);
1756         }
1757         wl->fw.fw_cnt = i;
1758         return wl_ucode_data_init(wl);
1759 }
1760
1761 void wl_ucode_free_buf(void *p)
1762 {
1763         kfree(p);
1764 }
1765
1766 static void wl_release_fw(struct wl_info *wl)
1767 {
1768         int i;
1769         for (i = 0; i < WL_MAX_FW; i++) {
1770                 release_firmware(wl->fw.fw_bin[i]);
1771                 release_firmware(wl->fw.fw_hdr[i]);
1772         }
1773 }
1774
1775
1776 /*
1777  * checks validity of all firmware images loaded from user space
1778  */
1779 int wl_check_firmwares(struct wl_info *wl)
1780 {
1781         int i;
1782         int entry;
1783         int rc = 0;
1784         const struct firmware *fw;
1785         const struct firmware *fw_hdr;
1786         struct wl_fw_hdr *ucode_hdr;
1787         for (i = 0; i < WL_MAX_FW && rc == 0; i++) {
1788                 fw =  wl->fw.fw_bin[i];
1789                 fw_hdr = wl->fw.fw_hdr[i];
1790                 if (fw == NULL && fw_hdr == NULL) {
1791                         break;
1792                 } else if (fw == NULL || fw_hdr == NULL) {
1793                         WL_ERROR("%s: invalid bin/hdr fw\n", __func__);
1794                         rc = -EBADF;
1795                 } else if (fw_hdr->size % sizeof(struct wl_fw_hdr)) {
1796                         WL_ERROR("%s: non integral fw hdr file size %d/%zu\n",
1797                                  __func__, fw_hdr->size,
1798                                  sizeof(struct wl_fw_hdr));
1799                         rc = -EBADF;
1800                 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1801                         WL_ERROR("%s: out of bounds fw file size %d\n",
1802                                  __func__, fw->size);
1803                         rc = -EBADF;
1804                 } else {
1805                         /* check if ucode section overruns firmware image */
1806                         ucode_hdr = (struct wl_fw_hdr *)fw_hdr->data;
1807                         for (entry = 0; entry < wl->fw.hdr_num_entries[i] && rc;
1808                              entry++, ucode_hdr++) {
1809                                 if (ucode_hdr->offset + ucode_hdr->len >
1810                                     fw->size) {
1811                                         WL_ERROR("%s: conflicting bin/hdr\n",
1812                                                  __func__);
1813                                         rc = -EBADF;
1814                                 }
1815                         }
1816                 }
1817         }
1818         if (rc == 0 && wl->fw.fw_cnt != i) {
1819                 WL_ERROR("%s: invalid fw_cnt=%d\n", __func__, wl->fw.fw_cnt);
1820                 rc = -EBADF;
1821         }
1822         return rc;
1823 }
1824