drivers/staging/brcm80211/brcmsmac/wl_mac80211.c

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