drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.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 /* Toplevel file. Relies on dhd_linux.c to send commands to the dongle. */
  18
  19 #include <linux/kernel.h>
  20 #include <linux/etherdevice.h>
  21 #include <linux/module.h>
  22 #include <linux/vmalloc.h>
  23 #include <net/cfg80211.h>
  24 #include <net/netlink.h>
  25
  26 #include <brcmu_utils.h>
  27 #include <defs.h>
  28 #include <brcmu_wifi.h>
  29 #include "dhd.h"
  30 #include "dhd_dbg.h"
  31 #include "tracepoint.h"
  32 #include "fwil_types.h"
  33 #include "p2p.h"
  34 #include "btcoex.h"
  35 #include "wl_cfg80211.h"
  36 #include "feature.h"
  37 #include "fwil.h"
  38 #include "proto.h"
  39 #include "vendor.h"
  40
  41 #define BRCMF_SCAN_IE_LEN_MAX           2048
  42 #define BRCMF_PNO_VERSION               2
  43 #define BRCMF_PNO_TIME                  30
  44 #define BRCMF_PNO_REPEAT                4
  45 #define BRCMF_PNO_FREQ_EXPO_MAX         3
  46 #define BRCMF_PNO_MAX_PFN_COUNT         16
  47 #define BRCMF_PNO_ENABLE_ADAPTSCAN_BIT  6
  48 #define BRCMF_PNO_HIDDEN_BIT            2
  49 #define BRCMF_PNO_WPA_AUTH_ANY          0xFFFFFFFF
  50 #define BRCMF_PNO_SCAN_COMPLETE         1
  51 #define BRCMF_PNO_SCAN_INCOMPLETE       0
  52
  53 #define BRCMF_IFACE_MAX_CNT             3
  54
  55 #define WPA_OUI                         "\x00\x50\xF2"  /* WPA OUI */
  56 #define WPA_OUI_TYPE                    1
  57 #define RSN_OUI                         "\x00\x0F\xAC"  /* RSN OUI */
  58 #define WME_OUI_TYPE                    2
  59 #define WPS_OUI_TYPE                    4
  60
  61 #define VS_IE_FIXED_HDR_LEN             6
  62 #define WPA_IE_VERSION_LEN              2
  63 #define WPA_IE_MIN_OUI_LEN              4
  64 #define WPA_IE_SUITE_COUNT_LEN          2
  65
  66 #define WPA_CIPHER_NONE                 0       /* None */
  67 #define WPA_CIPHER_WEP_40               1       /* WEP (40-bit) */
  68 #define WPA_CIPHER_TKIP                 2       /* TKIP: default for WPA */
  69 #define WPA_CIPHER_AES_CCM              4       /* AES (CCM) */
  70 #define WPA_CIPHER_WEP_104              5       /* WEP (104-bit) */
  71
  72 #define RSN_AKM_NONE                    0       /* None (IBSS) */
  73 #define RSN_AKM_UNSPECIFIED             1       /* Over 802.1x */
  74 #define RSN_AKM_PSK                     2       /* Pre-shared Key */
  75 #define RSN_CAP_LEN                     2       /* Length of RSN capabilities */
  76 #define RSN_CAP_PTK_REPLAY_CNTR_MASK    0x000C
  77
  78 #define VNDR_IE_CMD_LEN                 4       /* length of the set command
  79                                                  * string :"add", "del" (+ NUL)
  80                                                  */
  81 #define VNDR_IE_COUNT_OFFSET            4
  82 #define VNDR_IE_PKTFLAG_OFFSET          8
  83 #define VNDR_IE_VSIE_OFFSET             12
  84 #define VNDR_IE_HDR_SIZE                12
  85 #define VNDR_IE_PARSE_LIMIT             5
  86
  87 #define DOT11_MGMT_HDR_LEN              24      /* d11 management header len */
  88 #define DOT11_BCN_PRB_FIXED_LEN         12      /* beacon/probe fixed length */
  89
  90 #define BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS    320
  91 #define BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS   400
  92 #define BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS       20
  93
  94 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
  95         (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
  96
  97 static bool check_vif_up(struct brcmf_cfg80211_vif *vif)
  98 {
  99         if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) {
 100                 brcmf_dbg(INFO, "device is not ready : status (%lu)\n",
 101                           vif->sme_state);
 102                 return false;
 103         }
 104         return true;
 105 }
 106
 107 #define RATE_TO_BASE100KBPS(rate)   (((rate) * 10) / 2)
 108 #define RATETAB_ENT(_rateid, _flags) \
 109         {                                                               \
 110                 .bitrate        = RATE_TO_BASE100KBPS(_rateid),     \
 111                 .hw_value       = (_rateid),                            \
 112                 .flags          = (_flags),                             \
 113         }
 114
 115 static struct ieee80211_rate __wl_rates[] = {
 116         RATETAB_ENT(BRCM_RATE_1M, 0),
 117         RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
 118         RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
 119         RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
 120         RATETAB_ENT(BRCM_RATE_6M, 0),
 121         RATETAB_ENT(BRCM_RATE_9M, 0),
 122         RATETAB_ENT(BRCM_RATE_12M, 0),
 123         RATETAB_ENT(BRCM_RATE_18M, 0),
 124         RATETAB_ENT(BRCM_RATE_24M, 0),
 125         RATETAB_ENT(BRCM_RATE_36M, 0),
 126         RATETAB_ENT(BRCM_RATE_48M, 0),
 127         RATETAB_ENT(BRCM_RATE_54M, 0),
 128 };
 129
 130 #define wl_a_rates              (__wl_rates + 4)
 131 #define wl_a_rates_size 8
 132 #define wl_g_rates              (__wl_rates + 0)
 133 #define wl_g_rates_size 12
 134
 135 /* Band templates duplicated per wiphy. The channel info
 136  * is filled in after querying the device.
 137  */
 138 static const struct ieee80211_supported_band __wl_band_2ghz = {
 139         .band = IEEE80211_BAND_2GHZ,
 140         .bitrates = wl_g_rates,
 141         .n_bitrates = wl_g_rates_size,
 142 };
 143
 144 static const struct ieee80211_supported_band __wl_band_5ghz_a = {
 145         .band = IEEE80211_BAND_5GHZ,
 146         .bitrates = wl_a_rates,
 147         .n_bitrates = wl_a_rates_size,
 148 };
 149
 150 /* This is to override regulatory domains defined in cfg80211 module (reg.c)
 151  * By default world regulatory domain defined in reg.c puts the flags
 152  * NL80211_RRF_NO_IR for 5GHz channels (for * 36..48 and 149..165).
 153  * With respect to these flags, wpa_supplicant doesn't * start p2p
 154  * operations on 5GHz channels. All the changes in world regulatory
 155  * domain are to be done here.
 156  */
 157 static const struct ieee80211_regdomain brcmf_regdom = {
 158         .n_reg_rules = 4,
 159         .alpha2 =  "99",
 160         .reg_rules = {
 161                 /* IEEE 802.11b/g, channels 1..11 */
 162                 REG_RULE(2412-10, 2472+10, 40, 6, 20, 0),
 163                 /* If any */
 164                 /* IEEE 802.11 channel 14 - Only JP enables
 165                  * this and for 802.11b only
 166                  */
 167                 REG_RULE(2484-10, 2484+10, 20, 6, 20, 0),
 168                 /* IEEE 802.11a, channel 36..64 */
 169                 REG_RULE(5150-10, 5350+10, 80, 6, 20, 0),
 170                 /* IEEE 802.11a, channel 100..165 */
 171                 REG_RULE(5470-10, 5850+10, 80, 6, 20, 0), }
 172 };
 173
 174 static const u32 __wl_cipher_suites[] = {
 175         WLAN_CIPHER_SUITE_WEP40,
 176         WLAN_CIPHER_SUITE_WEP104,
 177         WLAN_CIPHER_SUITE_TKIP,
 178         WLAN_CIPHER_SUITE_CCMP,
 179         WLAN_CIPHER_SUITE_AES_CMAC,
 180 };
 181
 182 /* Vendor specific ie. id = 221, oui and type defines exact ie */
 183 struct brcmf_vs_tlv {
 184         u8 id;
 185         u8 len;
 186         u8 oui[3];
 187         u8 oui_type;
 188 };
 189
 190 struct parsed_vndr_ie_info {
 191         u8 *ie_ptr;
 192         u32 ie_len;     /* total length including id & length field */
 193         struct brcmf_vs_tlv vndrie;
 194 };
 195
 196 struct parsed_vndr_ies {
 197         u32 count;
 198         struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
 199 };
 200
 201 static int brcmf_roamoff;
 202 module_param_named(roamoff, brcmf_roamoff, int, S_IRUSR);
 203 MODULE_PARM_DESC(roamoff, "do not use internal roaming engine");
 204
 205 /* Quarter dBm units to mW
 206  * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
 207  * Table is offset so the last entry is largest mW value that fits in
 208  * a u16.
 209  */
 210
 211 #define QDBM_OFFSET 153         /* Offset for first entry */
 212 #define QDBM_TABLE_LEN 40       /* Table size */
 213
 214 /* Smallest mW value that will round up to the first table entry, QDBM_OFFSET.
 215  * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2
 216  */
 217 #define QDBM_TABLE_LOW_BOUND 6493       /* Low bound */
 218
 219 /* Largest mW value that will round down to the last table entry,
 220  * QDBM_OFFSET + QDBM_TABLE_LEN-1.
 221  * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) +
 222  * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2.
 223  */
 224 #define QDBM_TABLE_HIGH_BOUND 64938     /* High bound */
 225
 226 static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = {
 227 /* qdBm:        +0      +1      +2      +3      +4      +5      +6      +7 */
 228 /* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000,
 229 /* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849,
 230 /* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119,
 231 /* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811,
 232 /* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096
 233 };
 234
 235 static u16 brcmf_qdbm_to_mw(u8 qdbm)
 236 {
 237         uint factor = 1;
 238         int idx = qdbm - QDBM_OFFSET;
 239
 240         if (idx >= QDBM_TABLE_LEN)
 241                 /* clamp to max u16 mW value */
 242                 return 0xFFFF;
 243
 244         /* scale the qdBm index up to the range of the table 0-40
 245          * where an offset of 40 qdBm equals a factor of 10 mW.
 246          */
 247         while (idx < 0) {
 248                 idx += 40;
 249                 factor *= 10;
 250         }
 251
 252         /* return the mW value scaled down to the correct factor of 10,
 253          * adding in factor/2 to get proper rounding.
 254          */
 255         return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
 256 }
 257
 258 static u8 brcmf_mw_to_qdbm(u16 mw)
 259 {
 260         u8 qdbm;
 261         int offset;
 262         uint mw_uint = mw;
 263         uint boundary;
 264
 265         /* handle boundary case */
 266         if (mw_uint <= 1)
 267                 return 0;
 268
 269         offset = QDBM_OFFSET;
 270
 271         /* move mw into the range of the table */
 272         while (mw_uint < QDBM_TABLE_LOW_BOUND) {
 273                 mw_uint *= 10;
 274                 offset -= 40;
 275         }
 276
 277         for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) {
 278                 boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] -
 279                                                     nqdBm_to_mW_map[qdbm]) / 2;
 280                 if (mw_uint < boundary)
 281                         break;
 282         }
 283
 284         qdbm += (u8) offset;
 285
 286         return qdbm;
 287 }
 288
 289 static u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf,
 290                                struct cfg80211_chan_def *ch)
 291 {
 292         struct brcmu_chan ch_inf;
 293         s32 primary_offset;
 294
 295         brcmf_dbg(TRACE, "chandef: control %d center %d width %d\n",
 296                   ch->chan->center_freq, ch->center_freq1, ch->width);
 297         ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq1);
 298         primary_offset = ch->center_freq1 - ch->chan->center_freq;
 299         switch (ch->width) {
 300         case NL80211_CHAN_WIDTH_20:
 301                 ch_inf.bw = BRCMU_CHAN_BW_20;
 302                 WARN_ON(primary_offset != 0);
 303                 break;
 304         case NL80211_CHAN_WIDTH_40:
 305                 ch_inf.bw = BRCMU_CHAN_BW_40;
 306                 if (primary_offset < 0)
 307                         ch_inf.sb = BRCMU_CHAN_SB_U;
 308                 else
 309                         ch_inf.sb = BRCMU_CHAN_SB_L;
 310                 break;
 311         case NL80211_CHAN_WIDTH_80:
 312                 ch_inf.bw = BRCMU_CHAN_BW_80;
 313                 if (primary_offset < 0) {
 314                         if (primary_offset < -CH_10MHZ_APART)
 315                                 ch_inf.sb = BRCMU_CHAN_SB_UU;
 316                         else
 317                                 ch_inf.sb = BRCMU_CHAN_SB_UL;
 318                 } else {
 319                         if (primary_offset > CH_10MHZ_APART)
 320                                 ch_inf.sb = BRCMU_CHAN_SB_LL;
 321                         else
 322                                 ch_inf.sb = BRCMU_CHAN_SB_LU;
 323                 }
 324                 break;
 325         default:
 326                 WARN_ON_ONCE(1);
 327         }
 328         switch (ch->chan->band) {
 329         case IEEE80211_BAND_2GHZ:
 330                 ch_inf.band = BRCMU_CHAN_BAND_2G;
 331                 break;
 332         case IEEE80211_BAND_5GHZ:
 333                 ch_inf.band = BRCMU_CHAN_BAND_5G;
 334                 break;
 335         default:
 336                 WARN_ON_ONCE(1);
 337         }
 338         d11inf->encchspec(&ch_inf);
 339
 340         return ch_inf.chspec;
 341 }
 342
 343 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
 344                         struct ieee80211_channel *ch)
 345 {
 346         struct brcmu_chan ch_inf;
 347
 348         ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq);
 349         ch_inf.bw = BRCMU_CHAN_BW_20;
 350         d11inf->encchspec(&ch_inf);
 351
 352         return ch_inf.chspec;
 353 }
 354
 355 /* Traverse a string of 1-byte tag/1-byte length/variable-length value
 356  * triples, returning a pointer to the substring whose first element
 357  * matches tag
 358  */
 359 const struct brcmf_tlv *
 360 brcmf_parse_tlvs(const void *buf, int buflen, uint key)
 361 {
 362         const struct brcmf_tlv *elt = buf;
 363         int totlen = buflen;
 364
 365         /* find tagged parameter */
 366         while (totlen >= TLV_HDR_LEN) {
 367                 int len = elt->len;
 368
 369                 /* validate remaining totlen */
 370                 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
 371                         return elt;
 372
 373                 elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN));
 374                 totlen -= (len + TLV_HDR_LEN);
 375         }
 376
 377         return NULL;
 378 }
 379
 380 /* Is any of the tlvs the expected entry? If
 381  * not update the tlvs buffer pointer/length.
 382  */
 383 static bool
 384 brcmf_tlv_has_ie(const u8 *ie, const u8 **tlvs, u32 *tlvs_len,
 385                  const u8 *oui, u32 oui_len, u8 type)
 386 {
 387         /* If the contents match the OUI and the type */
 388         if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
 389             !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
 390             type == ie[TLV_BODY_OFF + oui_len]) {
 391                 return true;
 392         }
 393
 394         if (tlvs == NULL)
 395                 return false;
 396         /* point to the next ie */
 397         ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
 398         /* calculate the length of the rest of the buffer */
 399         *tlvs_len -= (int)(ie - *tlvs);
 400         /* update the pointer to the start of the buffer */
 401         *tlvs = ie;
 402
 403         return false;
 404 }
 405
 406 static struct brcmf_vs_tlv *
 407 brcmf_find_wpaie(const u8 *parse, u32 len)
 408 {
 409         const struct brcmf_tlv *ie;
 410
 411         while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
 412                 if (brcmf_tlv_has_ie((const u8 *)ie, &parse, &len,
 413                                      WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
 414                         return (struct brcmf_vs_tlv *)ie;
 415         }
 416         return NULL;
 417 }
 418
 419 static struct brcmf_vs_tlv *
 420 brcmf_find_wpsie(const u8 *parse, u32 len)
 421 {
 422         const struct brcmf_tlv *ie;
 423
 424         while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
 425                 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
 426                                      WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE))
 427                         return (struct brcmf_vs_tlv *)ie;
 428         }
 429         return NULL;
 430 }
 431
 432
 433 static void convert_key_from_CPU(struct brcmf_wsec_key *key,
 434                                  struct brcmf_wsec_key_le *key_le)
 435 {
 436         key_le->index = cpu_to_le32(key->index);
 437         key_le->len = cpu_to_le32(key->len);
 438         key_le->algo = cpu_to_le32(key->algo);
 439         key_le->flags = cpu_to_le32(key->flags);
 440         key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
 441         key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
 442         key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
 443         memcpy(key_le->data, key->data, sizeof(key->data));
 444         memcpy(key_le->ea, key->ea, sizeof(key->ea));
 445 }
 446
 447 static int
 448 send_key_to_dongle(struct net_device *ndev, struct brcmf_wsec_key *key)
 449 {
 450         int err;
 451         struct brcmf_wsec_key_le key_le;
 452
 453         convert_key_from_CPU(key, &key_le);
 454
 455         brcmf_netdev_wait_pend8021x(ndev);
 456
 457         err = brcmf_fil_bsscfg_data_set(netdev_priv(ndev), "wsec_key", &key_le,
 458                                         sizeof(key_le));
 459
 460         if (err)
 461                 brcmf_err("wsec_key error (%d)\n", err);
 462         return err;
 463 }
 464
 465 static s32
 466 brcmf_configure_arp_offload(struct brcmf_if *ifp, bool enable)
 467 {
 468         s32 err;
 469         u32 mode;
 470
 471         if (enable)
 472                 mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
 473         else
 474                 mode = 0;
 475
 476         /* Try to set and enable ARP offload feature, this may fail, then it  */
 477         /* is simply not supported and err 0 will be returned                 */
 478         err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
 479         if (err) {
 480                 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
 481                           mode, err);
 482                 err = 0;
 483         } else {
 484                 err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
 485                 if (err) {
 486                         brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
 487                                   enable, err);
 488                         err = 0;
 489                 } else
 490                         brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
 491                                   enable, mode);
 492         }
 493
 494         return err;
 495 }
 496
 497 static void
 498 brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev)
 499 {
 500         struct net_device *ndev = wdev->netdev;
 501         struct brcmf_if *ifp = netdev_priv(ndev);
 502
 503         if ((wdev->iftype == NL80211_IFTYPE_ADHOC) ||
 504             (wdev->iftype == NL80211_IFTYPE_AP) ||
 505             (wdev->iftype == NL80211_IFTYPE_P2P_GO))
 506                 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
 507                                                 ADDR_DIRECT);
 508         else
 509                 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
 510                                                 ADDR_INDIRECT);
 511 }
 512
 513 static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif)
 514 {
 515         enum nl80211_iftype iftype;
 516
 517         iftype = vif->wdev.iftype;
 518         return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO;
 519 }
 520
 521 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
 522 {
 523         return vif->wdev.iftype == NL80211_IFTYPE_ADHOC;
 524 }
 525
 526 static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
 527                                                      const char *name,
 528                                                      enum nl80211_iftype type,
 529                                                      u32 *flags,
 530                                                      struct vif_params *params)
 531 {
 532         struct wireless_dev *wdev;
 533
 534         brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
 535         switch (type) {
 536         case NL80211_IFTYPE_ADHOC:
 537         case NL80211_IFTYPE_STATION:
 538         case NL80211_IFTYPE_AP:
 539         case NL80211_IFTYPE_AP_VLAN:
 540         case NL80211_IFTYPE_WDS:
 541         case NL80211_IFTYPE_MONITOR:
 542         case NL80211_IFTYPE_MESH_POINT:
 543                 return ERR_PTR(-EOPNOTSUPP);
 544         case NL80211_IFTYPE_P2P_CLIENT:
 545         case NL80211_IFTYPE_P2P_GO:
 546         case NL80211_IFTYPE_P2P_DEVICE:
 547                 wdev = brcmf_p2p_add_vif(wiphy, name, type, flags, params);
 548                 if (!IS_ERR(wdev))
 549                         brcmf_cfg80211_update_proto_addr_mode(wdev);
 550                 return wdev;
 551         case NL80211_IFTYPE_UNSPECIFIED:
 552         default:
 553                 return ERR_PTR(-EINVAL);
 554         }
 555 }
 556
 557 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
 558 {
 559         if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC))
 560                 brcmf_set_mpc(ifp, mpc);
 561 }
 562
 563 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
 564 {
 565         s32 err = 0;
 566
 567         if (check_vif_up(ifp->vif)) {
 568                 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
 569                 if (err) {
 570                         brcmf_err("fail to set mpc\n");
 571                         return;
 572                 }
 573                 brcmf_dbg(INFO, "MPC : %d\n", mpc);
 574         }
 575 }
 576
 577 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
 578                                 struct brcmf_if *ifp, bool aborted,
 579                                 bool fw_abort)
 580 {
 581         struct brcmf_scan_params_le params_le;
 582         struct cfg80211_scan_request *scan_request;
 583         s32 err = 0;
 584
 585         brcmf_dbg(SCAN, "Enter\n");
 586
 587         /* clear scan request, because the FW abort can cause a second call */
 588         /* to this functon and might cause a double cfg80211_scan_done      */
 589         scan_request = cfg->scan_request;
 590         cfg->scan_request = NULL;
 591
 592         if (timer_pending(&cfg->escan_timeout))
 593                 del_timer_sync(&cfg->escan_timeout);
 594
 595         if (fw_abort) {
 596                 /* Do a scan abort to stop the driver's scan engine */
 597                 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
 598                 memset(&params_le, 0, sizeof(params_le));
 599                 memset(params_le.bssid, 0xFF, ETH_ALEN);
 600                 params_le.bss_type = DOT11_BSSTYPE_ANY;
 601                 params_le.scan_type = 0;
 602                 params_le.channel_num = cpu_to_le32(1);
 603                 params_le.nprobes = cpu_to_le32(1);
 604                 params_le.active_time = cpu_to_le32(-1);
 605                 params_le.passive_time = cpu_to_le32(-1);
 606                 params_le.home_time = cpu_to_le32(-1);
 607                 /* Scan is aborted by setting channel_list[0] to -1 */
 608                 params_le.channel_list[0] = cpu_to_le16(-1);
 609                 /* E-Scan (or anyother type) can be aborted by SCAN */
 610                 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
 611                                              &params_le, sizeof(params_le));
 612                 if (err)
 613                         brcmf_err("Scan abort  failed\n");
 614         }
 615
 616         brcmf_scan_config_mpc(ifp, 1);
 617
 618         /*
 619          * e-scan can be initiated by scheduled scan
 620          * which takes precedence.
 621          */
 622         if (cfg->sched_escan) {
 623                 brcmf_dbg(SCAN, "scheduled scan completed\n");
 624                 cfg->sched_escan = false;
 625                 if (!aborted)
 626                         cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
 627         } else if (scan_request) {
 628                 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
 629                           aborted ? "Aborted" : "Done");
 630                 cfg80211_scan_done(scan_request, aborted);
 631         }
 632         if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
 633                 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
 634
 635         return err;
 636 }
 637
 638 static
 639 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
 640 {
 641         struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
 642         struct net_device *ndev = wdev->netdev;
 643
 644         /* vif event pending in firmware */
 645         if (brcmf_cfg80211_vif_event_armed(cfg))
 646                 return -EBUSY;
 647
 648         if (ndev) {
 649                 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
 650                     cfg->escan_info.ifp == netdev_priv(ndev))
 651                         brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
 652                                                     true, true);
 653
 654                 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
 655         }
 656
 657         switch (wdev->iftype) {
 658         case NL80211_IFTYPE_ADHOC:
 659         case NL80211_IFTYPE_STATION:
 660         case NL80211_IFTYPE_AP:
 661         case NL80211_IFTYPE_AP_VLAN:
 662         case NL80211_IFTYPE_WDS:
 663         case NL80211_IFTYPE_MONITOR:
 664         case NL80211_IFTYPE_MESH_POINT:
 665                 return -EOPNOTSUPP;
 666         case NL80211_IFTYPE_P2P_CLIENT:
 667         case NL80211_IFTYPE_P2P_GO:
 668         case NL80211_IFTYPE_P2P_DEVICE:
 669                 return brcmf_p2p_del_vif(wiphy, wdev);
 670         case NL80211_IFTYPE_UNSPECIFIED:
 671         default:
 672                 return -EINVAL;
 673         }
 674         return -EOPNOTSUPP;
 675 }
 676
 677 static s32
 678 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
 679                          enum nl80211_iftype type, u32 *flags,
 680                          struct vif_params *params)
 681 {
 682         struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
 683         struct brcmf_if *ifp = netdev_priv(ndev);
 684         struct brcmf_cfg80211_vif *vif = ifp->vif;
 685         s32 infra = 0;
 686         s32 ap = 0;
 687         s32 err = 0;
 688
 689         brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type);
 690
 691         switch (type) {
 692         case NL80211_IFTYPE_MONITOR:
 693         case NL80211_IFTYPE_WDS:
 694                 brcmf_err("type (%d) : currently we do not support this type\n",
 695                           type);
 696                 return -EOPNOTSUPP;
 697         case NL80211_IFTYPE_ADHOC:
 698                 infra = 0;
 699                 break;
 700         case NL80211_IFTYPE_STATION:
 701                 /* Ignore change for p2p IF. Unclear why supplicant does this */
 702                 if ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
 703                     (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO)) {
 704                         brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
 705                         /* WAR: It is unexpected to get a change of VIF for P2P
 706                          * IF, but it happens. The request can not be handled
 707                          * but returning EPERM causes a crash. Returning 0
 708                          * without setting ieee80211_ptr->iftype causes trace
 709                          * (WARN_ON) but it works with wpa_supplicant
 710                          */
 711                         return 0;
 712                 }
 713                 infra = 1;
 714                 break;
 715         case NL80211_IFTYPE_AP:
 716         case NL80211_IFTYPE_P2P_GO:
 717                 ap = 1;
 718                 break;
 719         default:
 720                 err = -EINVAL;
 721                 goto done;
 722         }
 723
 724         if (ap) {
 725                 if (type == NL80211_IFTYPE_P2P_GO) {
 726                         brcmf_dbg(INFO, "IF Type = P2P GO\n");
 727                         err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
 728                 }
 729                 if (!err) {
 730                         set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
 731                         brcmf_dbg(INFO, "IF Type = AP\n");
 732                 }
 733         } else {
 734                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
 735                 if (err) {
 736                         brcmf_err("WLC_SET_INFRA error (%d)\n", err);
 737                         err = -EAGAIN;
 738                         goto done;
 739                 }
 740                 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ?
 741                           "Adhoc" : "Infra");
 742         }
 743         ndev->ieee80211_ptr->iftype = type;
 744
 745         brcmf_cfg80211_update_proto_addr_mode(&vif->wdev);
 746
 747 done:
 748         brcmf_dbg(TRACE, "Exit\n");
 749
 750         return err;
 751 }
 752
 753 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
 754                              struct brcmf_scan_params_le *params_le,
 755                              struct cfg80211_scan_request *request)
 756 {
 757         u32 n_ssids;
 758         u32 n_channels;
 759         s32 i;
 760         s32 offset;
 761         u16 chanspec;
 762         char *ptr;
 763         struct brcmf_ssid_le ssid_le;
 764
 765         memset(params_le->bssid, 0xFF, ETH_ALEN);
 766         params_le->bss_type = DOT11_BSSTYPE_ANY;
 767         params_le->scan_type = 0;
 768         params_le->channel_num = 0;
 769         params_le->nprobes = cpu_to_le32(-1);
 770         params_le->active_time = cpu_to_le32(-1);
 771         params_le->passive_time = cpu_to_le32(-1);
 772         params_le->home_time = cpu_to_le32(-1);
 773         memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
 774
 775         /* if request is null exit so it will be all channel broadcast scan */
 776         if (!request)
 777                 return;
 778
 779         n_ssids = request->n_ssids;
 780         n_channels = request->n_channels;
 781         /* Copy channel array if applicable */
 782         brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
 783                   n_channels);
 784         if (n_channels > 0) {
 785                 for (i = 0; i < n_channels; i++) {
 786                         chanspec = channel_to_chanspec(&cfg->d11inf,
 787                                                        request->channels[i]);
 788                         brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
 789                                   request->channels[i]->hw_value, chanspec);
 790                         params_le->channel_list[i] = cpu_to_le16(chanspec);
 791                 }
 792         } else {
 793                 brcmf_dbg(SCAN, "Scanning all channels\n");
 794         }
 795         /* Copy ssid array if applicable */
 796         brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
 797         if (n_ssids > 0) {
 798                 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
 799                                 n_channels * sizeof(u16);
 800                 offset = roundup(offset, sizeof(u32));
 801                 ptr = (char *)params_le + offset;
 802                 for (i = 0; i < n_ssids; i++) {
 803                         memset(&ssid_le, 0, sizeof(ssid_le));
 804                         ssid_le.SSID_len =
 805                                         cpu_to_le32(request->ssids[i].ssid_len);
 806                         memcpy(ssid_le.SSID, request->ssids[i].ssid,
 807                                request->ssids[i].ssid_len);
 808                         if (!ssid_le.SSID_len)
 809                                 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
 810                         else
 811                                 brcmf_dbg(SCAN, "%d: scan for  %s size =%d\n",
 812                                           i, ssid_le.SSID, ssid_le.SSID_len);
 813                         memcpy(ptr, &ssid_le, sizeof(ssid_le));
 814                         ptr += sizeof(ssid_le);
 815                 }
 816         } else {
 817                 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
 818                 if ((request->ssids) && request->ssids->ssid_len) {
 819                         brcmf_dbg(SCAN, "SSID %s len=%d\n",
 820                                   params_le->ssid_le.SSID,
 821                                   request->ssids->ssid_len);
 822                         params_le->ssid_le.SSID_len =
 823                                 cpu_to_le32(request->ssids->ssid_len);
 824                         memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
 825                                 request->ssids->ssid_len);
 826                 }
 827         }
 828         /* Adding mask to channel numbers */
 829         params_le->channel_num =
 830                 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
 831                         (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
 832 }
 833
 834 static s32
 835 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
 836                 struct cfg80211_scan_request *request, u16 action)
 837 {
 838         s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
 839                           offsetof(struct brcmf_escan_params_le, params_le);
 840         struct brcmf_escan_params_le *params;
 841         s32 err = 0;
 842
 843         brcmf_dbg(SCAN, "E-SCAN START\n");
 844
 845         if (request != NULL) {
 846                 /* Allocate space for populating ssids in struct */
 847                 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
 848
 849                 /* Allocate space for populating ssids in struct */
 850                 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
 851         }
 852
 853         params = kzalloc(params_size, GFP_KERNEL);
 854         if (!params) {
 855                 err = -ENOMEM;
 856                 goto exit;
 857         }
 858         BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
 859         brcmf_escan_prep(cfg, &params->params_le, request);
 860         params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
 861         params->action = cpu_to_le16(action);
 862         params->sync_id = cpu_to_le16(0x1234);
 863
 864         err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
 865         if (err) {
 866                 if (err == -EBUSY)
 867                         brcmf_dbg(INFO, "system busy : escan canceled\n");
 868                 else
 869                         brcmf_err("error (%d)\n", err);
 870         }
 871
 872         kfree(params);
 873 exit:
 874         return err;
 875 }
 876
 877 static s32
 878 brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
 879                struct brcmf_if *ifp, struct cfg80211_scan_request *request)
 880 {
 881         s32 err;
 882         u32 passive_scan;
 883         struct brcmf_scan_results *results;
 884         struct escan_info *escan = &cfg->escan_info;
 885
 886         brcmf_dbg(SCAN, "Enter\n");
 887         escan->ifp = ifp;
 888         escan->wiphy = wiphy;
 889         escan->escan_state = WL_ESCAN_STATE_SCANNING;
 890         passive_scan = cfg->active_scan ? 0 : 1;
 891         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
 892                                     passive_scan);
 893         if (err) {
 894                 brcmf_err("error (%d)\n", err);
 895                 return err;
 896         }
 897         brcmf_scan_config_mpc(ifp, 0);
 898         results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
 899         results->version = 0;
 900         results->count = 0;
 901         results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
 902
 903         err = escan->run(cfg, ifp, request, WL_ESCAN_ACTION_START);
 904         if (err)
 905                 brcmf_scan_config_mpc(ifp, 1);
 906         return err;
 907 }
 908
 909 static s32
 910 brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
 911                      struct cfg80211_scan_request *request,
 912                      struct cfg80211_ssid *this_ssid)
 913 {
 914         struct brcmf_if *ifp = vif->ifp;
 915         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 916         struct cfg80211_ssid *ssids;
 917         struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
 918         u32 passive_scan;
 919         bool escan_req;
 920         bool spec_scan;
 921         s32 err;
 922         u32 SSID_len;
 923
 924         brcmf_dbg(SCAN, "START ESCAN\n");
 925
 926         if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
 927                 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
 928                 return -EAGAIN;
 929         }
 930         if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
 931                 brcmf_err("Scanning being aborted: status (%lu)\n",
 932                           cfg->scan_status);
 933                 return -EAGAIN;
 934         }
 935         if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
 936                 brcmf_err("Scanning suppressed: status (%lu)\n",
 937                           cfg->scan_status);
 938                 return -EAGAIN;
 939         }
 940         if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
 941                 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
 942                 return -EAGAIN;
 943         }
 944
 945         /* If scan req comes for p2p0, send it over primary I/F */
 946         if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
 947                 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
 948
 949         /* Arm scan timeout timer */
 950         mod_timer(&cfg->escan_timeout, jiffies +
 951                         WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
 952
 953         escan_req = false;
 954         if (request) {
 955                 /* scan bss */
 956                 ssids = request->ssids;
 957                 escan_req = true;
 958         } else {
 959                 /* scan in ibss */
 960                 /* we don't do escan in ibss */
 961                 ssids = this_ssid;
 962         }
 963
 964         cfg->scan_request = request;
 965         set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
 966         if (escan_req) {
 967                 cfg->escan_info.run = brcmf_run_escan;
 968                 err = brcmf_p2p_scan_prep(wiphy, request, vif);
 969                 if (err)
 970                         goto scan_out;
 971
 972                 err = brcmf_do_escan(cfg, wiphy, vif->ifp, request);
 973                 if (err)
 974                         goto scan_out;
 975         } else {
 976                 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
 977                           ssids->ssid, ssids->ssid_len);
 978                 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
 979                 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
 980                 sr->ssid_le.SSID_len = cpu_to_le32(0);
 981                 spec_scan = false;
 982                 if (SSID_len) {
 983                         memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
 984                         sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
 985                         spec_scan = true;
 986                 } else
 987                         brcmf_dbg(SCAN, "Broadcast scan\n");
 988
 989                 passive_scan = cfg->active_scan ? 0 : 1;
 990                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
 991                                             passive_scan);
 992                 if (err) {
 993                         brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
 994                         goto scan_out;
 995                 }
 996                 brcmf_scan_config_mpc(ifp, 0);
 997                 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
 998                                              &sr->ssid_le, sizeof(sr->ssid_le));
 999                 if (err) {
1000                         if (err == -EBUSY)
1001                                 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
1002                                           sr->ssid_le.SSID);
1003                         else
1004                                 brcmf_err("WLC_SCAN error (%d)\n", err);
1005
1006                         brcmf_scan_config_mpc(ifp, 1);
1007                         goto scan_out;
1008                 }
1009         }
1010
1011         return 0;
1012
1013 scan_out:
1014         clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1015         if (timer_pending(&cfg->escan_timeout))
1016                 del_timer_sync(&cfg->escan_timeout);
1017         cfg->scan_request = NULL;
1018         return err;
1019 }
1020
1021 static s32
1022 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
1023 {
1024         struct brcmf_cfg80211_vif *vif;
1025         s32 err = 0;
1026
1027         brcmf_dbg(TRACE, "Enter\n");
1028         vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
1029         if (!check_vif_up(vif))
1030                 return -EIO;
1031
1032         err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);
1033
1034         if (err)
1035                 brcmf_err("scan error (%d)\n", err);
1036
1037         brcmf_dbg(TRACE, "Exit\n");
1038         return err;
1039 }
1040
1041 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1042 {
1043         s32 err = 0;
1044
1045         err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1046                                       rts_threshold);
1047         if (err)
1048                 brcmf_err("Error (%d)\n", err);
1049
1050         return err;
1051 }
1052
1053 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1054 {
1055         s32 err = 0;
1056
1057         err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1058                                       frag_threshold);
1059         if (err)
1060                 brcmf_err("Error (%d)\n", err);
1061
1062         return err;
1063 }
1064
1065 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1066 {
1067         s32 err = 0;
1068         u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1069
1070         err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1071         if (err) {
1072                 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1073                 return err;
1074         }
1075         return err;
1076 }
1077
1078 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1079 {
1080         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1081         struct net_device *ndev = cfg_to_ndev(cfg);
1082         struct brcmf_if *ifp = netdev_priv(ndev);
1083         s32 err = 0;
1084
1085         brcmf_dbg(TRACE, "Enter\n");
1086         if (!check_vif_up(ifp->vif))
1087                 return -EIO;
1088
1089         if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1090             (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1091                 cfg->conf->rts_threshold = wiphy->rts_threshold;
1092                 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1093                 if (!err)
1094                         goto done;
1095         }
1096         if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1097             (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1098                 cfg->conf->frag_threshold = wiphy->frag_threshold;
1099                 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1100                 if (!err)
1101                         goto done;
1102         }
1103         if (changed & WIPHY_PARAM_RETRY_LONG
1104             && (cfg->conf->retry_long != wiphy->retry_long)) {
1105                 cfg->conf->retry_long = wiphy->retry_long;
1106                 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1107                 if (!err)
1108                         goto done;
1109         }
1110         if (changed & WIPHY_PARAM_RETRY_SHORT
1111             && (cfg->conf->retry_short != wiphy->retry_short)) {
1112                 cfg->conf->retry_short = wiphy->retry_short;
1113                 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1114                 if (!err)
1115                         goto done;
1116         }
1117
1118 done:
1119         brcmf_dbg(TRACE, "Exit\n");
1120         return err;
1121 }
1122
1123 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1124 {
1125         memset(prof, 0, sizeof(*prof));
1126 }
1127
1128 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif)
1129 {
1130         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
1131         s32 err = 0;
1132
1133         brcmf_dbg(TRACE, "Enter\n");
1134
1135         if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1136                 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1137                 err = brcmf_fil_cmd_data_set(vif->ifp,
1138                                              BRCMF_C_DISASSOC, NULL, 0);
1139                 if (err) {
1140                         brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1141                 }
1142                 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
1143                 cfg80211_disconnected(vif->wdev.netdev, 0, NULL, 0, GFP_KERNEL);
1144
1145         }
1146         clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1147         clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
1148         brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
1149         brcmf_dbg(TRACE, "Exit\n");
1150 }
1151
1152 static s32
1153 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1154                       struct cfg80211_ibss_params *params)
1155 {
1156         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1157         struct brcmf_if *ifp = netdev_priv(ndev);
1158         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1159         struct brcmf_join_params join_params;
1160         size_t join_params_size = 0;
1161         s32 err = 0;
1162         s32 wsec = 0;
1163         s32 bcnprd;
1164         u16 chanspec;
1165
1166         brcmf_dbg(TRACE, "Enter\n");
1167         if (!check_vif_up(ifp->vif))
1168                 return -EIO;
1169
1170         if (params->ssid)
1171                 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1172         else {
1173                 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1174                 return -EOPNOTSUPP;
1175         }
1176
1177         set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1178
1179         if (params->bssid)
1180                 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1181         else
1182                 brcmf_dbg(CONN, "No BSSID specified\n");
1183
1184         if (params->chandef.chan)
1185                 brcmf_dbg(CONN, "channel: %d\n",
1186                           params->chandef.chan->center_freq);
1187         else
1188                 brcmf_dbg(CONN, "no channel specified\n");
1189
1190         if (params->channel_fixed)
1191                 brcmf_dbg(CONN, "fixed channel required\n");
1192         else
1193                 brcmf_dbg(CONN, "no fixed channel required\n");
1194
1195         if (params->ie && params->ie_len)
1196                 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1197         else
1198                 brcmf_dbg(CONN, "no ie specified\n");
1199
1200         if (params->beacon_interval)
1201                 brcmf_dbg(CONN, "beacon interval: %d\n",
1202                           params->beacon_interval);
1203         else
1204                 brcmf_dbg(CONN, "no beacon interval specified\n");
1205
1206         if (params->basic_rates)
1207                 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1208         else
1209                 brcmf_dbg(CONN, "no basic rates specified\n");
1210
1211         if (params->privacy)
1212                 brcmf_dbg(CONN, "privacy required\n");
1213         else
1214                 brcmf_dbg(CONN, "no privacy required\n");
1215
1216         /* Configure Privacy for starter */
1217         if (params->privacy)
1218                 wsec |= WEP_ENABLED;
1219
1220         err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1221         if (err) {
1222                 brcmf_err("wsec failed (%d)\n", err);
1223                 goto done;
1224         }
1225
1226         /* Configure Beacon Interval for starter */
1227         if (params->beacon_interval)
1228                 bcnprd = params->beacon_interval;
1229         else
1230                 bcnprd = 100;
1231
1232         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1233         if (err) {
1234                 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1235                 goto done;
1236         }
1237
1238         /* Configure required join parameter */
1239         memset(&join_params, 0, sizeof(struct brcmf_join_params));
1240
1241         /* SSID */
1242         profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1243         memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1244         memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1245         join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1246         join_params_size = sizeof(join_params.ssid_le);
1247
1248         /* BSSID */
1249         if (params->bssid) {
1250                 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1251                 join_params_size = sizeof(join_params.ssid_le) +
1252                                    BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1253                 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1254         } else {
1255                 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1256                 memset(profile->bssid, 0, ETH_ALEN);
1257         }
1258
1259         /* Channel */
1260         if (params->chandef.chan) {
1261                 u32 target_channel;
1262
1263                 cfg->channel =
1264                         ieee80211_frequency_to_channel(
1265                                 params->chandef.chan->center_freq);
1266                 if (params->channel_fixed) {
1267                         /* adding chanspec */
1268                         chanspec = chandef_to_chanspec(&cfg->d11inf,
1269                                                        &params->chandef);
1270                         join_params.params_le.chanspec_list[0] =
1271                                 cpu_to_le16(chanspec);
1272                         join_params.params_le.chanspec_num = cpu_to_le32(1);
1273                         join_params_size += sizeof(join_params.params_le);
1274                 }
1275
1276                 /* set channel for starter */
1277                 target_channel = cfg->channel;
1278                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1279                                             target_channel);
1280                 if (err) {
1281                         brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1282                         goto done;
1283                 }
1284         } else
1285                 cfg->channel = 0;
1286
1287         cfg->ibss_starter = false;
1288
1289
1290         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1291                                      &join_params, join_params_size);
1292         if (err) {
1293                 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1294                 goto done;
1295         }
1296
1297 done:
1298         if (err)
1299                 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1300         brcmf_dbg(TRACE, "Exit\n");
1301         return err;
1302 }
1303
1304 static s32
1305 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1306 {
1307         struct brcmf_if *ifp = netdev_priv(ndev);
1308
1309         brcmf_dbg(TRACE, "Enter\n");
1310         if (!check_vif_up(ifp->vif))
1311                 return -EIO;
1312
1313         brcmf_link_down(ifp->vif);
1314
1315         brcmf_dbg(TRACE, "Exit\n");
1316
1317         return 0;
1318 }
1319
1320 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1321                                  struct cfg80211_connect_params *sme)
1322 {
1323         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1324         struct brcmf_cfg80211_security *sec;
1325         s32 val = 0;
1326         s32 err = 0;
1327
1328         if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1329                 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1330         else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1331                 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1332         else
1333                 val = WPA_AUTH_DISABLED;
1334         brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1335         err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1336         if (err) {
1337                 brcmf_err("set wpa_auth failed (%d)\n", err);
1338                 return err;
1339         }
1340         sec = &profile->sec;
1341         sec->wpa_versions = sme->crypto.wpa_versions;
1342         return err;
1343 }
1344
1345 static s32 brcmf_set_auth_type(struct net_device *ndev,
1346                                struct cfg80211_connect_params *sme)
1347 {
1348         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1349         struct brcmf_cfg80211_security *sec;
1350         s32 val = 0;
1351         s32 err = 0;
1352
1353         switch (sme->auth_type) {
1354         case NL80211_AUTHTYPE_OPEN_SYSTEM:
1355                 val = 0;
1356                 brcmf_dbg(CONN, "open system\n");
1357                 break;
1358         case NL80211_AUTHTYPE_SHARED_KEY:
1359                 val = 1;
1360                 brcmf_dbg(CONN, "shared key\n");
1361                 break;
1362         case NL80211_AUTHTYPE_AUTOMATIC:
1363                 val = 2;
1364                 brcmf_dbg(CONN, "automatic\n");
1365                 break;
1366         case NL80211_AUTHTYPE_NETWORK_EAP:
1367                 brcmf_dbg(CONN, "network eap\n");
1368         default:
1369                 val = 2;
1370                 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1371                 break;
1372         }
1373
1374         err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1375         if (err) {
1376                 brcmf_err("set auth failed (%d)\n", err);
1377                 return err;
1378         }
1379         sec = &profile->sec;
1380         sec->auth_type = sme->auth_type;
1381         return err;
1382 }
1383
1384 static s32
1385 brcmf_set_wsec_mode(struct net_device *ndev,
1386                      struct cfg80211_connect_params *sme, bool mfp)
1387 {
1388         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1389         struct brcmf_cfg80211_security *sec;
1390         s32 pval = 0;
1391         s32 gval = 0;
1392         s32 wsec;
1393         s32 err = 0;
1394
1395         if (sme->crypto.n_ciphers_pairwise) {
1396                 switch (sme->crypto.ciphers_pairwise[0]) {
1397                 case WLAN_CIPHER_SUITE_WEP40:
1398                 case WLAN_CIPHER_SUITE_WEP104:
1399                         pval = WEP_ENABLED;
1400                         break;
1401                 case WLAN_CIPHER_SUITE_TKIP:
1402                         pval = TKIP_ENABLED;
1403                         break;
1404                 case WLAN_CIPHER_SUITE_CCMP:
1405                         pval = AES_ENABLED;
1406                         break;
1407                 case WLAN_CIPHER_SUITE_AES_CMAC:
1408                         pval = AES_ENABLED;
1409                         break;
1410                 default:
1411                         brcmf_err("invalid cipher pairwise (%d)\n",
1412                                   sme->crypto.ciphers_pairwise[0]);
1413                         return -EINVAL;
1414                 }
1415         }
1416         if (sme->crypto.cipher_group) {
1417                 switch (sme->crypto.cipher_group) {
1418                 case WLAN_CIPHER_SUITE_WEP40:
1419                 case WLAN_CIPHER_SUITE_WEP104:
1420                         gval = WEP_ENABLED;
1421                         break;
1422                 case WLAN_CIPHER_SUITE_TKIP:
1423                         gval = TKIP_ENABLED;
1424                         break;
1425                 case WLAN_CIPHER_SUITE_CCMP:
1426                         gval = AES_ENABLED;
1427                         break;
1428                 case WLAN_CIPHER_SUITE_AES_CMAC:
1429                         gval = AES_ENABLED;
1430                         break;
1431                 default:
1432                         brcmf_err("invalid cipher group (%d)\n",
1433                                   sme->crypto.cipher_group);
1434                         return -EINVAL;
1435                 }
1436         }
1437
1438         brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1439         /* In case of privacy, but no security and WPS then simulate */
1440         /* setting AES. WPS-2.0 allows no security                   */
1441         if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1442             sme->privacy)
1443                 pval = AES_ENABLED;
1444
1445         if (mfp)
1446                 wsec = pval | gval | MFP_CAPABLE;
1447         else
1448                 wsec = pval | gval;
1449         err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec);
1450         if (err) {
1451                 brcmf_err("error (%d)\n", err);
1452                 return err;
1453         }
1454
1455         sec = &profile->sec;
1456         sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1457         sec->cipher_group = sme->crypto.cipher_group;
1458
1459         return err;
1460 }
1461
1462 static s32
1463 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1464 {
1465         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1466         struct brcmf_cfg80211_security *sec;
1467         s32 val = 0;
1468         s32 err = 0;
1469
1470         if (sme->crypto.n_akm_suites) {
1471                 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev),
1472                                                "wpa_auth", &val);
1473                 if (err) {
1474                         brcmf_err("could not get wpa_auth (%d)\n", err);
1475                         return err;
1476                 }
1477                 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1478                         switch (sme->crypto.akm_suites[0]) {
1479                         case WLAN_AKM_SUITE_8021X:
1480                                 val = WPA_AUTH_UNSPECIFIED;
1481                                 break;
1482                         case WLAN_AKM_SUITE_PSK:
1483                                 val = WPA_AUTH_PSK;
1484                                 break;
1485                         default:
1486                                 brcmf_err("invalid cipher group (%d)\n",
1487                                           sme->crypto.cipher_group);
1488                                 return -EINVAL;
1489                         }
1490                 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1491                         switch (sme->crypto.akm_suites[0]) {
1492                         case WLAN_AKM_SUITE_8021X:
1493                                 val = WPA2_AUTH_UNSPECIFIED;
1494                                 break;
1495                         case WLAN_AKM_SUITE_PSK:
1496                                 val = WPA2_AUTH_PSK;
1497                                 break;
1498                         default:
1499                                 brcmf_err("invalid cipher group (%d)\n",
1500                                           sme->crypto.cipher_group);
1501                                 return -EINVAL;
1502                         }
1503                 }
1504
1505                 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1506                 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev),
1507                                                "wpa_auth", val);
1508                 if (err) {
1509                         brcmf_err("could not set wpa_auth (%d)\n", err);
1510                         return err;
1511                 }
1512         }
1513         sec = &profile->sec;
1514         sec->wpa_auth = sme->crypto.akm_suites[0];
1515
1516         return err;
1517 }
1518
1519 static s32
1520 brcmf_set_sharedkey(struct net_device *ndev,
1521                     struct cfg80211_connect_params *sme)
1522 {
1523         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1524         struct brcmf_cfg80211_security *sec;
1525         struct brcmf_wsec_key key;
1526         s32 val;
1527         s32 err = 0;
1528
1529         brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1530
1531         if (sme->key_len == 0)
1532                 return 0;
1533
1534         sec = &profile->sec;
1535         brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1536                   sec->wpa_versions, sec->cipher_pairwise);
1537
1538         if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1539                 return 0;
1540
1541         if (!(sec->cipher_pairwise &
1542             (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1543                 return 0;
1544
1545         memset(&key, 0, sizeof(key));
1546         key.len = (u32) sme->key_len;
1547         key.index = (u32) sme->key_idx;
1548         if (key.len > sizeof(key.data)) {
1549                 brcmf_err("Too long key length (%u)\n", key.len);
1550                 return -EINVAL;
1551         }
1552         memcpy(key.data, sme->key, key.len);
1553         key.flags = BRCMF_PRIMARY_KEY;
1554         switch (sec->cipher_pairwise) {
1555         case WLAN_CIPHER_SUITE_WEP40:
1556                 key.algo = CRYPTO_ALGO_WEP1;
1557                 break;
1558         case WLAN_CIPHER_SUITE_WEP104:
1559                 key.algo = CRYPTO_ALGO_WEP128;
1560                 break;
1561         default:
1562                 brcmf_err("Invalid algorithm (%d)\n",
1563                           sme->crypto.ciphers_pairwise[0]);
1564                 return -EINVAL;
1565         }
1566         /* Set the new key/index */
1567         brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1568                   key.len, key.index, key.algo);
1569         brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1570         err = send_key_to_dongle(ndev, &key);
1571         if (err)
1572                 return err;
1573
1574         if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1575                 brcmf_dbg(CONN, "set auth_type to shared key\n");
1576                 val = WL_AUTH_SHARED_KEY;       /* shared key */
1577                 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1578                 if (err)
1579                         brcmf_err("set auth failed (%d)\n", err);
1580         }
1581         return err;
1582 }
1583
1584 static
1585 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1586                                            enum nl80211_auth_type type)
1587 {
1588         if (type == NL80211_AUTHTYPE_AUTOMATIC &&
1589             brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) {
1590                 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n");
1591                 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1592         }
1593         return type;
1594 }
1595
1596 static s32
1597 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1598                        struct cfg80211_connect_params *sme)
1599 {
1600         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1601         struct brcmf_if *ifp = netdev_priv(ndev);
1602         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1603         struct ieee80211_channel *chan = sme->channel;
1604         struct brcmf_join_params join_params;
1605         size_t join_params_size;
1606         const struct brcmf_tlv *rsn_ie;
1607         const struct brcmf_vs_tlv *wpa_ie;
1608         const void *ie;
1609         u32 ie_len;
1610         struct brcmf_ext_join_params_le *ext_join_params;
1611         u16 chanspec;
1612         s32 err = 0;
1613
1614         brcmf_dbg(TRACE, "Enter\n");
1615         if (!check_vif_up(ifp->vif))
1616                 return -EIO;
1617
1618         if (!sme->ssid) {
1619                 brcmf_err("Invalid ssid\n");
1620                 return -EOPNOTSUPP;
1621         }
1622
1623         if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1624                 /* A normal (non P2P) connection request setup. */
1625                 ie = NULL;
1626                 ie_len = 0;
1627                 /* find the WPA_IE */
1628                 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1629                 if (wpa_ie) {
1630                         ie = wpa_ie;
1631                         ie_len = wpa_ie->len + TLV_HDR_LEN;
1632                 } else {
1633                         /* find the RSN_IE */
1634                         rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie,
1635                                                   sme->ie_len,
1636                                                   WLAN_EID_RSN);
1637                         if (rsn_ie) {
1638                                 ie = rsn_ie;
1639                                 ie_len = rsn_ie->len + TLV_HDR_LEN;
1640                         }
1641                 }
1642                 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1643         }
1644
1645         err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1646                                     sme->ie, sme->ie_len);
1647         if (err)
1648                 brcmf_err("Set Assoc REQ IE Failed\n");
1649         else
1650                 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1651
1652         set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1653
1654         if (chan) {
1655                 cfg->channel =
1656                         ieee80211_frequency_to_channel(chan->center_freq);
1657                 chanspec = channel_to_chanspec(&cfg->d11inf, chan);
1658                 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1659                           cfg->channel, chan->center_freq, chanspec);
1660         } else {
1661                 cfg->channel = 0;
1662                 chanspec = 0;
1663         }
1664
1665         brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1666
1667         err = brcmf_set_wpa_version(ndev, sme);
1668         if (err) {
1669                 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1670                 goto done;
1671         }
1672
1673         sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1674         err = brcmf_set_auth_type(ndev, sme);
1675         if (err) {
1676                 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1677                 goto done;
1678         }
1679
1680         err = brcmf_set_wsec_mode(ndev, sme, sme->mfp == NL80211_MFP_REQUIRED);
1681         if (err) {
1682                 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1683                 goto done;
1684         }
1685
1686         err = brcmf_set_key_mgmt(ndev, sme);
1687         if (err) {
1688                 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1689                 goto done;
1690         }
1691
1692         err = brcmf_set_sharedkey(ndev, sme);
1693         if (err) {
1694                 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1695                 goto done;
1696         }
1697
1698         profile->ssid.SSID_len = min_t(u32, (u32)sizeof(profile->ssid.SSID),
1699                                        (u32)sme->ssid_len);
1700         memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1701         if (profile->ssid.SSID_len < IEEE80211_MAX_SSID_LEN) {
1702                 profile->ssid.SSID[profile->ssid.SSID_len] = 0;
1703                 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", profile->ssid.SSID,
1704                           profile->ssid.SSID_len);
1705         }
1706
1707         /* Join with specific BSSID and cached SSID
1708          * If SSID is zero join based on BSSID only
1709          */
1710         join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
1711                 offsetof(struct brcmf_assoc_params_le, chanspec_list);
1712         if (cfg->channel)
1713                 join_params_size += sizeof(u16);
1714         ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
1715         if (ext_join_params == NULL) {
1716                 err = -ENOMEM;
1717                 goto done;
1718         }
1719         ext_join_params->ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1720         memcpy(&ext_join_params->ssid_le.SSID, sme->ssid,
1721                profile->ssid.SSID_len);
1722
1723         /* Set up join scan parameters */
1724         ext_join_params->scan_le.scan_type = -1;
1725         ext_join_params->scan_le.home_time = cpu_to_le32(-1);
1726
1727         if (sme->bssid)
1728                 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
1729         else
1730                 memset(&ext_join_params->assoc_le.bssid, 0xFF, ETH_ALEN);
1731
1732         if (cfg->channel) {
1733                 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
1734
1735                 ext_join_params->assoc_le.chanspec_list[0] =
1736                         cpu_to_le16(chanspec);
1737                 /* Increase dwell time to receive probe response or detect
1738                  * beacon from target AP at a noisy air only during connect
1739                  * command.
1740                  */
1741                 ext_join_params->scan_le.active_time =
1742                         cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
1743                 ext_join_params->scan_le.passive_time =
1744                         cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
1745                 /* To sync with presence period of VSDB GO send probe request
1746                  * more frequently. Probe request will be stopped when it gets
1747                  * probe response from target AP/GO.
1748                  */
1749                 ext_join_params->scan_le.nprobes =
1750                         cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
1751                                     BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
1752         } else {
1753                 ext_join_params->scan_le.active_time = cpu_to_le32(-1);
1754                 ext_join_params->scan_le.passive_time = cpu_to_le32(-1);
1755                 ext_join_params->scan_le.nprobes = cpu_to_le32(-1);
1756         }
1757
1758         err  = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
1759                                          join_params_size);
1760         kfree(ext_join_params);
1761         if (!err)
1762                 /* This is it. join command worked, we are done */
1763                 goto done;
1764
1765         /* join command failed, fallback to set ssid */
1766         memset(&join_params, 0, sizeof(join_params));
1767         join_params_size = sizeof(join_params.ssid_le);
1768
1769         memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1770         join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1771
1772         if (sme->bssid)
1773                 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
1774         else
1775                 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1776
1777         if (cfg->channel) {
1778                 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1779                 join_params.params_le.chanspec_num = cpu_to_le32(1);
1780                 join_params_size += sizeof(join_params.params_le);
1781         }
1782         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1783                                      &join_params, join_params_size);
1784         if (err)
1785                 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
1786
1787 done:
1788         if (err)
1789                 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1790         brcmf_dbg(TRACE, "Exit\n");
1791         return err;
1792 }
1793
1794 static s32
1795 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1796                        u16 reason_code)
1797 {
1798         struct brcmf_if *ifp = netdev_priv(ndev);
1799         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1800         struct brcmf_scb_val_le scbval;
1801         s32 err = 0;
1802
1803         brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
1804         if (!check_vif_up(ifp->vif))
1805                 return -EIO;
1806
1807         clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1808         cfg80211_disconnected(ndev, reason_code, NULL, 0, GFP_KERNEL);
1809
1810         memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1811         scbval.val = cpu_to_le32(reason_code);
1812         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1813                                      &scbval, sizeof(scbval));
1814         if (err)
1815                 brcmf_err("error (%d)\n", err);
1816
1817         brcmf_dbg(TRACE, "Exit\n");
1818         return err;
1819 }
1820
1821 static s32
1822 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
1823                             enum nl80211_tx_power_setting type, s32 mbm)
1824 {
1825
1826         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1827         struct net_device *ndev = cfg_to_ndev(cfg);
1828         struct brcmf_if *ifp = netdev_priv(ndev);
1829         u16 txpwrmw;
1830         s32 err = 0;
1831         s32 disable = 0;
1832         s32 dbm = MBM_TO_DBM(mbm);
1833
1834         brcmf_dbg(TRACE, "Enter\n");
1835         if (!check_vif_up(ifp->vif))
1836                 return -EIO;
1837
1838         switch (type) {
1839         case NL80211_TX_POWER_AUTOMATIC:
1840                 break;
1841         case NL80211_TX_POWER_LIMITED:
1842         case NL80211_TX_POWER_FIXED:
1843                 if (dbm < 0) {
1844                         brcmf_err("TX_POWER_FIXED - dbm is negative\n");
1845                         err = -EINVAL;
1846                         goto done;
1847                 }
1848                 break;
1849         }
1850         /* Make sure radio is off or on as far as software is concerned */
1851         disable = WL_RADIO_SW_DISABLE << 16;
1852         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1853         if (err)
1854                 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
1855
1856         if (dbm > 0xffff)
1857                 txpwrmw = 0xffff;
1858         else
1859                 txpwrmw = (u16) dbm;
1860         err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1861                                       (s32)brcmf_mw_to_qdbm(txpwrmw));
1862         if (err)
1863                 brcmf_err("qtxpower error (%d)\n", err);
1864         cfg->conf->tx_power = dbm;
1865
1866 done:
1867         brcmf_dbg(TRACE, "Exit\n");
1868         return err;
1869 }
1870
1871 static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy,
1872                                        struct wireless_dev *wdev,
1873                                        s32 *dbm)
1874 {
1875         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1876         struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
1877         s32 txpwrdbm;
1878         u8 result;
1879         s32 err = 0;
1880
1881         brcmf_dbg(TRACE, "Enter\n");
1882         if (!check_vif_up(ifp->vif))
1883                 return -EIO;
1884
1885         err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
1886         if (err) {
1887                 brcmf_err("error (%d)\n", err);
1888                 goto done;
1889         }
1890
1891         result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
1892         *dbm = (s32) brcmf_qdbm_to_mw(result);
1893
1894 done:
1895         brcmf_dbg(TRACE, "Exit\n");
1896         return err;
1897 }
1898
1899 static s32
1900 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
1901                                u8 key_idx, bool unicast, bool multicast)
1902 {
1903         struct brcmf_if *ifp = netdev_priv(ndev);
1904         u32 index;
1905         u32 wsec;
1906         s32 err = 0;
1907
1908         brcmf_dbg(TRACE, "Enter\n");
1909         brcmf_dbg(CONN, "key index (%d)\n", key_idx);
1910         if (!check_vif_up(ifp->vif))
1911                 return -EIO;
1912
1913         err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
1914         if (err) {
1915                 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
1916                 goto done;
1917         }
1918
1919         if (wsec & WEP_ENABLED) {
1920                 /* Just select a new current key */
1921                 index = key_idx;
1922                 err = brcmf_fil_cmd_int_set(ifp,
1923                                             BRCMF_C_SET_KEY_PRIMARY, index);
1924                 if (err)
1925                         brcmf_err("error (%d)\n", err);
1926         }
1927 done:
1928         brcmf_dbg(TRACE, "Exit\n");
1929         return err;
1930 }
1931
1932 static s32
1933 brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
1934               u8 key_idx, const u8 *mac_addr, struct key_params *params)
1935 {
1936         struct brcmf_if *ifp = netdev_priv(ndev);
1937         struct brcmf_wsec_key key;
1938         s32 err = 0;
1939         u8 keybuf[8];
1940
1941         memset(&key, 0, sizeof(key));
1942         key.index = (u32) key_idx;
1943         /* Instead of bcast for ea address for default wep keys,
1944                  driver needs it to be Null */
1945         if (!is_multicast_ether_addr(mac_addr))
1946                 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
1947         key.len = (u32) params->key_len;
1948         /* check for key index change */
1949         if (key.len == 0) {
1950                 /* key delete */
1951                 err = send_key_to_dongle(ndev, &key);
1952                 if (err)
1953                         brcmf_err("key delete error (%d)\n", err);
1954         } else {
1955                 if (key.len > sizeof(key.data)) {
1956                         brcmf_err("Invalid key length (%d)\n", key.len);
1957                         return -EINVAL;
1958                 }
1959
1960                 brcmf_dbg(CONN, "Setting the key index %d\n", key.index);
1961                 memcpy(key.data, params->key, key.len);
1962
1963                 if (!brcmf_is_apmode(ifp->vif) &&
1964                     (params->cipher == WLAN_CIPHER_SUITE_TKIP)) {
1965                         brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
1966                         memcpy(keybuf, &key.data[24], sizeof(keybuf));
1967                         memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
1968                         memcpy(&key.data[16], keybuf, sizeof(keybuf));
1969                 }
1970
1971                 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
1972                 if (params->seq && params->seq_len == 6) {
1973                         /* rx iv */
1974                         u8 *ivptr;
1975                         ivptr = (u8 *) params->seq;
1976                         key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
1977                             (ivptr[3] << 8) | ivptr[2];
1978                         key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
1979                         key.iv_initialized = true;
1980                 }
1981
1982                 switch (params->cipher) {
1983                 case WLAN_CIPHER_SUITE_WEP40:
1984                         key.algo = CRYPTO_ALGO_WEP1;
1985                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
1986                         break;
1987                 case WLAN_CIPHER_SUITE_WEP104:
1988                         key.algo = CRYPTO_ALGO_WEP128;
1989                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
1990                         break;
1991                 case WLAN_CIPHER_SUITE_TKIP:
1992                         key.algo = CRYPTO_ALGO_TKIP;
1993                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
1994                         break;
1995                 case WLAN_CIPHER_SUITE_AES_CMAC:
1996                         key.algo = CRYPTO_ALGO_AES_CCM;
1997                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
1998                         break;
1999                 case WLAN_CIPHER_SUITE_CCMP:
2000                         key.algo = CRYPTO_ALGO_AES_CCM;
2001                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2002                         break;
2003                 default:
2004                         brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2005                         return -EINVAL;
2006                 }
2007                 err = send_key_to_dongle(ndev, &key);
2008                 if (err)
2009                         brcmf_err("wsec_key error (%d)\n", err);
2010         }
2011         return err;
2012 }
2013
2014 static s32
2015 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
2016                     u8 key_idx, bool pairwise, const u8 *mac_addr,
2017                     struct key_params *params)
2018 {
2019         struct brcmf_if *ifp = netdev_priv(ndev);
2020         struct brcmf_wsec_key key;
2021         s32 val;
2022         s32 wsec;
2023         s32 err = 0;
2024         u8 keybuf[8];
2025
2026         brcmf_dbg(TRACE, "Enter\n");
2027         brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2028         if (!check_vif_up(ifp->vif))
2029                 return -EIO;
2030
2031         if (mac_addr &&
2032                 (params->cipher != WLAN_CIPHER_SUITE_WEP40) &&
2033                 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) {
2034                 brcmf_dbg(TRACE, "Exit");
2035                 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
2036         }
2037         memset(&key, 0, sizeof(key));
2038
2039         key.len = (u32) params->key_len;
2040         key.index = (u32) key_idx;
2041
2042         if (key.len > sizeof(key.data)) {
2043                 brcmf_err("Too long key length (%u)\n", key.len);
2044                 err = -EINVAL;
2045                 goto done;
2046         }
2047         memcpy(key.data, params->key, key.len);
2048
2049         key.flags = BRCMF_PRIMARY_KEY;
2050         switch (params->cipher) {
2051         case WLAN_CIPHER_SUITE_WEP40:
2052                 key.algo = CRYPTO_ALGO_WEP1;
2053                 val = WEP_ENABLED;
2054                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2055                 break;
2056         case WLAN_CIPHER_SUITE_WEP104:
2057                 key.algo = CRYPTO_ALGO_WEP128;
2058                 val = WEP_ENABLED;
2059                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2060                 break;
2061         case WLAN_CIPHER_SUITE_TKIP:
2062                 if (!brcmf_is_apmode(ifp->vif)) {
2063                         brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2064                         memcpy(keybuf, &key.data[24], sizeof(keybuf));
2065                         memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
2066                         memcpy(&key.data[16], keybuf, sizeof(keybuf));
2067                 }
2068                 key.algo = CRYPTO_ALGO_TKIP;
2069                 val = TKIP_ENABLED;
2070                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2071                 break;
2072         case WLAN_CIPHER_SUITE_AES_CMAC:
2073                 key.algo = CRYPTO_ALGO_AES_CCM;
2074                 val = AES_ENABLED;
2075                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2076                 break;
2077         case WLAN_CIPHER_SUITE_CCMP:
2078                 key.algo = CRYPTO_ALGO_AES_CCM;
2079                 val = AES_ENABLED;
2080                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2081                 break;
2082         default:
2083                 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2084                 err = -EINVAL;
2085                 goto done;
2086         }
2087
2088         err = send_key_to_dongle(ndev, &key);
2089         if (err)
2090                 goto done;
2091
2092         err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2093         if (err) {
2094                 brcmf_err("get wsec error (%d)\n", err);
2095                 goto done;
2096         }
2097         wsec |= val;
2098         err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2099         if (err) {
2100                 brcmf_err("set wsec error (%d)\n", err);
2101                 goto done;
2102         }
2103
2104 done:
2105         brcmf_dbg(TRACE, "Exit\n");
2106         return err;
2107 }
2108
2109 static s32
2110 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2111                     u8 key_idx, bool pairwise, const u8 *mac_addr)
2112 {
2113         struct brcmf_if *ifp = netdev_priv(ndev);
2114         struct brcmf_wsec_key key;
2115         s32 err = 0;
2116
2117         brcmf_dbg(TRACE, "Enter\n");
2118         if (!check_vif_up(ifp->vif))
2119                 return -EIO;
2120
2121         if (key_idx >= DOT11_MAX_DEFAULT_KEYS) {
2122                 /* we ignore this key index in this case */
2123                 brcmf_err("invalid key index (%d)\n", key_idx);
2124                 return -EINVAL;
2125         }
2126
2127         memset(&key, 0, sizeof(key));
2128
2129         key.index = (u32) key_idx;
2130         key.flags = BRCMF_PRIMARY_KEY;
2131         key.algo = CRYPTO_ALGO_OFF;
2132
2133         brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2134
2135         /* Set the new key/index */
2136         err = send_key_to_dongle(ndev, &key);
2137
2138         brcmf_dbg(TRACE, "Exit\n");
2139         return err;
2140 }
2141
2142 static s32
2143 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
2144                     u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
2145                     void (*callback) (void *cookie, struct key_params * params))
2146 {
2147         struct key_params params;
2148         struct brcmf_if *ifp = netdev_priv(ndev);
2149         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2150         struct brcmf_cfg80211_security *sec;
2151         s32 wsec;
2152         s32 err = 0;
2153
2154         brcmf_dbg(TRACE, "Enter\n");
2155         brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2156         if (!check_vif_up(ifp->vif))
2157                 return -EIO;
2158
2159         memset(&params, 0, sizeof(params));
2160
2161         err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2162         if (err) {
2163                 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2164                 /* Ignore this error, may happen during DISASSOC */
2165                 err = -EAGAIN;
2166                 goto done;
2167         }
2168         if (wsec & WEP_ENABLED) {
2169                 sec = &profile->sec;
2170                 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2171                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
2172                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2173                 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2174                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
2175                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2176                 }
2177         } else if (wsec & TKIP_ENABLED) {
2178                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2179                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2180         } else if (wsec & AES_ENABLED) {
2181                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2182                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2183         } else  {
2184                 brcmf_err("Invalid algo (0x%x)\n", wsec);
2185                 err = -EINVAL;
2186                 goto done;
2187         }
2188         callback(cookie, &params);
2189
2190 done:
2191         brcmf_dbg(TRACE, "Exit\n");
2192         return err;
2193 }
2194
2195 static s32
2196 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2197                                     struct net_device *ndev, u8 key_idx)
2198 {
2199         brcmf_dbg(INFO, "Not supported\n");
2200
2201         return -EOPNOTSUPP;
2202 }
2203
2204 static s32
2205 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2206                            const u8 *mac, struct station_info *sinfo)
2207 {
2208         struct brcmf_if *ifp = netdev_priv(ndev);
2209         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2210         struct brcmf_scb_val_le scb_val;
2211         int rssi;
2212         s32 rate;
2213         s32 err = 0;
2214         u8 *bssid = profile->bssid;
2215         struct brcmf_sta_info_le sta_info_le;
2216         u32 beacon_period;
2217         u32 dtim_period;
2218
2219         brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2220         if (!check_vif_up(ifp->vif))
2221                 return -EIO;
2222
2223         if (brcmf_is_apmode(ifp->vif)) {
2224                 memcpy(&sta_info_le, mac, ETH_ALEN);
2225                 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2226                                                &sta_info_le,
2227                                                sizeof(sta_info_le));
2228                 if (err < 0) {
2229                         brcmf_err("GET STA INFO failed, %d\n", err);
2230                         goto done;
2231                 }
2232                 sinfo->filled = STATION_INFO_INACTIVE_TIME;
2233                 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2234                 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2235                         sinfo->filled |= STATION_INFO_CONNECTED_TIME;
2236                         sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2237                 }
2238                 brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n",
2239                           sinfo->inactive_time, sinfo->connected_time);
2240         } else if (ifp->vif->wdev.iftype == NL80211_IFTYPE_STATION) {
2241                 if (memcmp(mac, bssid, ETH_ALEN)) {
2242                         brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2243                                   mac, bssid);
2244                         err = -ENOENT;
2245                         goto done;
2246                 }
2247                 /* Report the current tx rate */
2248                 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2249                 if (err) {
2250                         brcmf_err("Could not get rate (%d)\n", err);
2251                         goto done;
2252                 } else {
2253                         sinfo->filled |= STATION_INFO_TX_BITRATE;
2254                         sinfo->txrate.legacy = rate * 5;
2255                         brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2);
2256                 }
2257
2258                 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2259                              &ifp->vif->sme_state)) {
2260                         memset(&scb_val, 0, sizeof(scb_val));
2261                         err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2262                                                      &scb_val, sizeof(scb_val));
2263                         if (err) {
2264                                 brcmf_err("Could not get rssi (%d)\n", err);
2265                                 goto done;
2266                         } else {
2267                                 rssi = le32_to_cpu(scb_val.val);
2268                                 sinfo->filled |= STATION_INFO_SIGNAL;
2269                                 sinfo->signal = rssi;
2270                                 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2271                         }
2272                         err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_BCNPRD,
2273                                                     &beacon_period);
2274                         if (err) {
2275                                 brcmf_err("Could not get beacon period (%d)\n",
2276                                           err);
2277                                 goto done;
2278                         } else {
2279                                 sinfo->bss_param.beacon_interval =
2280                                         beacon_period;
2281                                 brcmf_dbg(CONN, "Beacon peroid %d\n",
2282                                           beacon_period);
2283                         }
2284                         err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_DTIMPRD,
2285                                                     &dtim_period);
2286                         if (err) {
2287                                 brcmf_err("Could not get DTIM period (%d)\n",
2288                                           err);
2289                                 goto done;
2290                         } else {
2291                                 sinfo->bss_param.dtim_period = dtim_period;
2292                                 brcmf_dbg(CONN, "DTIM peroid %d\n",
2293                                           dtim_period);
2294                         }
2295                         sinfo->filled |= STATION_INFO_BSS_PARAM;
2296                 }
2297         } else
2298                 err = -EPERM;
2299 done:
2300         brcmf_dbg(TRACE, "Exit\n");
2301         return err;
2302 }
2303
2304 static s32
2305 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2306                            bool enabled, s32 timeout)
2307 {
2308         s32 pm;
2309         s32 err = 0;
2310         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2311         struct brcmf_if *ifp = netdev_priv(ndev);
2312
2313         brcmf_dbg(TRACE, "Enter\n");
2314
2315         /*
2316          * Powersave enable/disable request is coming from the
2317          * cfg80211 even before the interface is up. In that
2318          * scenario, driver will be storing the power save
2319          * preference in cfg struct to apply this to
2320          * FW later while initializing the dongle
2321          */
2322         cfg->pwr_save = enabled;
2323         if (!check_vif_up(ifp->vif)) {
2324
2325                 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2326                 goto done;
2327         }
2328
2329         pm = enabled ? PM_FAST : PM_OFF;
2330         /* Do not enable the power save after assoc if it is a p2p interface */
2331         if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) {
2332                 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
2333                 pm = PM_OFF;
2334         }
2335         brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2336
2337         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2338         if (err) {
2339                 if (err == -ENODEV)
2340                         brcmf_err("net_device is not ready yet\n");
2341                 else
2342                         brcmf_err("error (%d)\n", err);
2343         }
2344 done:
2345         brcmf_dbg(TRACE, "Exit\n");
2346         return err;
2347 }
2348
2349 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2350                                    struct brcmf_bss_info_le *bi)
2351 {
2352         struct wiphy *wiphy = cfg_to_wiphy(cfg);
2353         struct ieee80211_channel *notify_channel;
2354         struct cfg80211_bss *bss;
2355         struct ieee80211_supported_band *band;
2356         struct brcmu_chan ch;
2357         u16 channel;
2358         u32 freq;
2359         u16 notify_capability;
2360         u16 notify_interval;
2361         u8 *notify_ie;
2362         size_t notify_ielen;
2363         s32 notify_signal;
2364
2365         if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2366                 brcmf_err("Bss info is larger than buffer. Discarding\n");
2367                 return 0;
2368         }
2369
2370         if (!bi->ctl_ch) {
2371                 ch.chspec = le16_to_cpu(bi->chanspec);
2372                 cfg->d11inf.decchspec(&ch);
2373                 bi->ctl_ch = ch.chnum;
2374         }
2375         channel = bi->ctl_ch;
2376
2377         if (channel <= CH_MAX_2G_CHANNEL)
2378                 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2379         else
2380                 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2381
2382         freq = ieee80211_channel_to_frequency(channel, band->band);
2383         notify_channel = ieee80211_get_channel(wiphy, freq);
2384
2385         notify_capability = le16_to_cpu(bi->capability);
2386         notify_interval = le16_to_cpu(bi->beacon_period);
2387         notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2388         notify_ielen = le32_to_cpu(bi->ie_length);
2389         notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2390
2391         brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2392         brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2393         brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2394         brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2395         brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2396
2397         bss = cfg80211_inform_bss(wiphy, notify_channel, (const u8 *)bi->BSSID,
2398                 0, notify_capability, notify_interval, notify_ie,
2399                 notify_ielen, notify_signal, GFP_KERNEL);
2400
2401         if (!bss)
2402                 return -ENOMEM;
2403
2404         cfg80211_put_bss(wiphy, bss);
2405
2406         return 0;
2407 }
2408
2409 static struct brcmf_bss_info_le *
2410 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2411 {
2412         if (bss == NULL)
2413                 return list->bss_info_le;
2414         return (struct brcmf_bss_info_le *)((unsigned long)bss +
2415                                             le32_to_cpu(bss->length));
2416 }
2417
2418 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2419 {
2420         struct brcmf_scan_results *bss_list;
2421         struct brcmf_bss_info_le *bi = NULL;    /* must be initialized */
2422         s32 err = 0;
2423         int i;
2424
2425         bss_list = cfg->bss_list;
2426         if (bss_list->count != 0 &&
2427             bss_list->version != BRCMF_BSS_INFO_VERSION) {
2428                 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2429                           bss_list->version);
2430                 return -EOPNOTSUPP;
2431         }
2432         brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2433         for (i = 0; i < bss_list->count; i++) {
2434                 bi = next_bss_le(bss_list, bi);
2435                 err = brcmf_inform_single_bss(cfg, bi);
2436                 if (err)
2437                         break;
2438         }
2439         return err;
2440 }
2441
2442 static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2443                           struct net_device *ndev, const u8 *bssid)
2444 {
2445         struct wiphy *wiphy = cfg_to_wiphy(cfg);
2446         struct ieee80211_channel *notify_channel;
2447         struct brcmf_bss_info_le *bi = NULL;
2448         struct ieee80211_supported_band *band;
2449         struct cfg80211_bss *bss;
2450         struct brcmu_chan ch;
2451         u8 *buf = NULL;
2452         s32 err = 0;
2453         u32 freq;
2454         u16 notify_capability;
2455         u16 notify_interval;
2456         u8 *notify_ie;
2457         size_t notify_ielen;
2458         s32 notify_signal;
2459
2460         brcmf_dbg(TRACE, "Enter\n");
2461
2462         buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2463         if (buf == NULL) {
2464                 err = -ENOMEM;
2465                 goto CleanUp;
2466         }
2467
2468         *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2469
2470         err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2471                                      buf, WL_BSS_INFO_MAX);
2472         if (err) {
2473                 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2474                 goto CleanUp;
2475         }
2476
2477         bi = (struct brcmf_bss_info_le *)(buf + 4);
2478
2479         ch.chspec = le16_to_cpu(bi->chanspec);
2480         cfg->d11inf.decchspec(&ch);
2481
2482         if (ch.band == BRCMU_CHAN_BAND_2G)
2483                 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2484         else
2485                 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2486
2487         freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
2488         notify_channel = ieee80211_get_channel(wiphy, freq);
2489
2490         notify_capability = le16_to_cpu(bi->capability);
2491         notify_interval = le16_to_cpu(bi->beacon_period);
2492         notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2493         notify_ielen = le32_to_cpu(bi->ie_length);
2494         notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2495
2496         brcmf_dbg(CONN, "channel: %d(%d)\n", ch.chnum, freq);
2497         brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2498         brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2499         brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2500
2501         bss = cfg80211_inform_bss(wiphy, notify_channel, bssid,
2502                 0, notify_capability, notify_interval,
2503                 notify_ie, notify_ielen, notify_signal, GFP_KERNEL);
2504
2505         if (!bss) {
2506                 err = -ENOMEM;
2507                 goto CleanUp;
2508         }
2509
2510         cfg80211_put_bss(wiphy, bss);
2511
2512 CleanUp:
2513
2514         kfree(buf);
2515
2516         brcmf_dbg(TRACE, "Exit\n");
2517
2518         return err;
2519 }
2520
2521 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2522                                  struct brcmf_if *ifp)
2523 {
2524         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ifp->ndev);
2525         struct brcmf_bss_info_le *bi;
2526         struct brcmf_ssid *ssid;
2527         const struct brcmf_tlv *tim;
2528         u16 beacon_interval;
2529         u8 dtim_period;
2530         size_t ie_len;
2531         u8 *ie;
2532         s32 err = 0;
2533
2534         brcmf_dbg(TRACE, "Enter\n");
2535         if (brcmf_is_ibssmode(ifp->vif))
2536                 return err;
2537
2538         ssid = &profile->ssid;
2539
2540         *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2541         err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2542                                      cfg->extra_buf, WL_EXTRA_BUF_MAX);
2543         if (err) {
2544                 brcmf_err("Could not get bss info %d\n", err);
2545                 goto update_bss_info_out;
2546         }
2547
2548         bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2549         err = brcmf_inform_single_bss(cfg, bi);
2550         if (err)
2551                 goto update_bss_info_out;
2552
2553         ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2554         ie_len = le32_to_cpu(bi->ie_length);
2555         beacon_interval = le16_to_cpu(bi->beacon_period);
2556
2557         tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2558         if (tim)
2559                 dtim_period = tim->data[1];
2560         else {
2561                 /*
2562                 * active scan was done so we could not get dtim
2563                 * information out of probe response.
2564                 * so we speficially query dtim information to dongle.
2565                 */
2566                 u32 var;
2567                 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2568                 if (err) {
2569                         brcmf_err("wl dtim_assoc failed (%d)\n", err);
2570                         goto update_bss_info_out;
2571                 }
2572                 dtim_period = (u8)var;
2573         }
2574
2575 update_bss_info_out:
2576         brcmf_dbg(TRACE, "Exit");
2577         return err;
2578 }
2579
2580 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2581 {
2582         struct escan_info *escan = &cfg->escan_info;
2583
2584         set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2585         if (cfg->scan_request) {
2586                 escan->escan_state = WL_ESCAN_STATE_IDLE;
2587                 brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
2588         }
2589         clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2590         clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2591 }
2592
2593 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2594 {
2595         struct brcmf_cfg80211_info *cfg =
2596                         container_of(work, struct brcmf_cfg80211_info,
2597                                      escan_timeout_work);
2598
2599         brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
2600 }
2601
2602 static void brcmf_escan_timeout(unsigned long data)
2603 {
2604         struct brcmf_cfg80211_info *cfg =
2605                         (struct brcmf_cfg80211_info *)data;
2606
2607         if (cfg->scan_request) {
2608                 brcmf_err("timer expired\n");
2609                 schedule_work(&cfg->escan_timeout_work);
2610         }
2611 }
2612
2613 static s32
2614 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
2615                               struct brcmf_bss_info_le *bss,
2616                               struct brcmf_bss_info_le *bss_info_le)
2617 {
2618         struct brcmu_chan ch_bss, ch_bss_info_le;
2619
2620         ch_bss.chspec = le16_to_cpu(bss->chanspec);
2621         cfg->d11inf.decchspec(&ch_bss);
2622         ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
2623         cfg->d11inf.decchspec(&ch_bss_info_le);
2624
2625         if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2626                 ch_bss.band == ch_bss_info_le.band &&
2627                 bss_info_le->SSID_len == bss->SSID_len &&
2628                 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2629                 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) ==
2630                         (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) {
2631                         s16 bss_rssi = le16_to_cpu(bss->RSSI);
2632                         s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2633
2634                         /* preserve max RSSI if the measurements are
2635                         * both on-channel or both off-channel
2636                         */
2637                         if (bss_info_rssi > bss_rssi)
2638                                 bss->RSSI = bss_info_le->RSSI;
2639                 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) &&
2640                         (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) {
2641                         /* preserve the on-channel rssi measurement
2642                         * if the new measurement is off channel
2643                         */
2644                         bss->RSSI = bss_info_le->RSSI;
2645                         bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL;
2646                 }
2647                 return 1;
2648         }
2649         return 0;
2650 }
2651
2652 static s32
2653 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
2654                              const struct brcmf_event_msg *e, void *data)
2655 {
2656         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2657         s32 status;
2658         struct brcmf_escan_result_le *escan_result_le;
2659         struct brcmf_bss_info_le *bss_info_le;
2660         struct brcmf_bss_info_le *bss = NULL;
2661         u32 bi_length;
2662         struct brcmf_scan_results *list;
2663         u32 i;
2664         bool aborted;
2665
2666         status = e->status;
2667
2668         if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2669                 brcmf_err("scan not ready, bssidx=%d\n", ifp->bssidx);
2670                 return -EPERM;
2671         }
2672
2673         if (status == BRCMF_E_STATUS_PARTIAL) {
2674                 brcmf_dbg(SCAN, "ESCAN Partial result\n");
2675                 escan_result_le = (struct brcmf_escan_result_le *) data;
2676                 if (!escan_result_le) {
2677                         brcmf_err("Invalid escan result (NULL pointer)\n");
2678                         goto exit;
2679                 }
2680                 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2681                         brcmf_err("Invalid bss_count %d: ignoring\n",
2682                                   escan_result_le->bss_count);
2683                         goto exit;
2684                 }
2685                 bss_info_le = &escan_result_le->bss_info_le;
2686
2687                 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
2688                         goto exit;
2689
2690                 if (!cfg->scan_request) {
2691                         brcmf_dbg(SCAN, "result without cfg80211 request\n");
2692                         goto exit;
2693                 }
2694
2695                 bi_length = le32_to_cpu(bss_info_le->length);
2696                 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2697                                         WL_ESCAN_RESULTS_FIXED_SIZE)) {
2698                         brcmf_err("Invalid bss_info length %d: ignoring\n",
2699                                   bi_length);
2700                         goto exit;
2701                 }
2702
2703                 if (!(cfg_to_wiphy(cfg)->interface_modes &
2704                                         BIT(NL80211_IFTYPE_ADHOC))) {
2705                         if (le16_to_cpu(bss_info_le->capability) &
2706                                                 WLAN_CAPABILITY_IBSS) {
2707                                 brcmf_err("Ignoring IBSS result\n");
2708                                 goto exit;
2709                         }
2710                 }
2711
2712                 list = (struct brcmf_scan_results *)
2713                                 cfg->escan_info.escan_buf;
2714                 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2715                         brcmf_err("Buffer is too small: ignoring\n");
2716                         goto exit;
2717                 }
2718
2719                 for (i = 0; i < list->count; i++) {
2720                         bss = bss ? (struct brcmf_bss_info_le *)
2721                                 ((unsigned char *)bss +
2722                                 le32_to_cpu(bss->length)) : list->bss_info_le;
2723                         if (brcmf_compare_update_same_bss(cfg, bss,
2724                                                           bss_info_le))
2725                                 goto exit;
2726                 }
2727                 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2728                         bss_info_le, bi_length);
2729                 list->version = le32_to_cpu(bss_info_le->version);
2730                 list->buflen += bi_length;
2731                 list->count++;
2732         } else {
2733                 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2734                 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
2735                         goto exit;
2736                 if (cfg->scan_request) {
2737                         cfg->bss_list = (struct brcmf_scan_results *)
2738                                 cfg->escan_info.escan_buf;
2739                         brcmf_inform_bss(cfg);
2740                         aborted = status != BRCMF_E_STATUS_SUCCESS;
2741                         brcmf_notify_escan_complete(cfg, ifp, aborted,
2742                                                     false);
2743                 } else
2744                         brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
2745                                   status);
2746         }
2747 exit:
2748         return 0;
2749 }
2750
2751 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2752 {
2753         brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
2754                             brcmf_cfg80211_escan_handler);
2755         cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2756         /* Init scan_timeout timer */
2757         init_timer(&cfg->escan_timeout);
2758         cfg->escan_timeout.data = (unsigned long) cfg;
2759         cfg->escan_timeout.function = brcmf_escan_timeout;
2760         INIT_WORK(&cfg->escan_timeout_work,
2761                   brcmf_cfg80211_escan_timeout_worker);
2762 }
2763
2764 static __always_inline void brcmf_delay(u32 ms)
2765 {
2766         if (ms < 1000 / HZ) {
2767                 cond_resched();
2768                 mdelay(ms);
2769         } else {
2770                 msleep(ms);
2771         }
2772 }
2773
2774 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2775 {
2776         brcmf_dbg(TRACE, "Enter\n");
2777
2778         return 0;
2779 }
2780
2781 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
2782                                   struct cfg80211_wowlan *wow)
2783 {
2784         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2785         struct net_device *ndev = cfg_to_ndev(cfg);
2786         struct brcmf_cfg80211_vif *vif;
2787
2788         brcmf_dbg(TRACE, "Enter\n");
2789
2790         /*
2791          * if the primary net_device is not READY there is nothing
2792          * we can do but pray resume goes smoothly.
2793          */
2794         vif = ((struct brcmf_if *)netdev_priv(ndev))->vif;
2795         if (!check_vif_up(vif))
2796                 goto exit;
2797
2798         list_for_each_entry(vif, &cfg->vif_list, list) {
2799                 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
2800                         continue;
2801                 /*
2802                  * While going to suspend if associated with AP disassociate
2803                  * from AP to save power while system is in suspended state
2804                  */
2805                 brcmf_link_down(vif);
2806
2807                 /* Make sure WPA_Supplicant receives all the event
2808                  * generated due to DISASSOC call to the fw to keep
2809                  * the state fw and WPA_Supplicant state consistent
2810                  */
2811                 brcmf_delay(500);
2812         }
2813
2814         /* end any scanning */
2815         if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
2816                 brcmf_abort_scanning(cfg);
2817
2818         /* Turn off watchdog timer */
2819         brcmf_set_mpc(netdev_priv(ndev), 1);
2820
2821 exit:
2822         brcmf_dbg(TRACE, "Exit\n");
2823         /* clear any scanning activity */
2824         cfg->scan_status = 0;
2825         return 0;
2826 }
2827
2828 static __used s32
2829 brcmf_update_pmklist(struct net_device *ndev,
2830                      struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
2831 {
2832         int i, j;
2833         int pmkid_len;
2834
2835         pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
2836
2837         brcmf_dbg(CONN, "No of elements %d\n", pmkid_len);
2838         for (i = 0; i < pmkid_len; i++) {
2839                 brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i,
2840                           &pmk_list->pmkids.pmkid[i].BSSID);
2841                 for (j = 0; j < WLAN_PMKID_LEN; j++)
2842                         brcmf_dbg(CONN, "%02x\n",
2843                                   pmk_list->pmkids.pmkid[i].PMKID[j]);
2844         }
2845
2846         if (!err)
2847                 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
2848                                          (char *)pmk_list, sizeof(*pmk_list));
2849
2850         return err;
2851 }
2852
2853 static s32
2854 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2855                          struct cfg80211_pmksa *pmksa)
2856 {
2857         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2858         struct brcmf_if *ifp = netdev_priv(ndev);
2859         struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
2860         s32 err = 0;
2861         int i;
2862         int pmkid_len;
2863
2864         brcmf_dbg(TRACE, "Enter\n");
2865         if (!check_vif_up(ifp->vif))
2866                 return -EIO;
2867
2868         pmkid_len = le32_to_cpu(pmkids->npmkid);
2869         for (i = 0; i < pmkid_len; i++)
2870                 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
2871                         break;
2872         if (i < WL_NUM_PMKIDS_MAX) {
2873                 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
2874                 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2875                 if (i == pmkid_len) {
2876                         pmkid_len++;
2877                         pmkids->npmkid = cpu_to_le32(pmkid_len);
2878                 }
2879         } else
2880                 err = -EINVAL;
2881
2882         brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
2883                   pmkids->pmkid[pmkid_len].BSSID);
2884         for (i = 0; i < WLAN_PMKID_LEN; i++)
2885                 brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
2886
2887         err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2888
2889         brcmf_dbg(TRACE, "Exit\n");
2890         return err;
2891 }
2892
2893 static s32
2894 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2895                       struct cfg80211_pmksa *pmksa)
2896 {
2897         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2898         struct brcmf_if *ifp = netdev_priv(ndev);
2899         struct pmkid_list pmkid;
2900         s32 err = 0;
2901         int i, pmkid_len;
2902
2903         brcmf_dbg(TRACE, "Enter\n");
2904         if (!check_vif_up(ifp->vif))
2905                 return -EIO;
2906
2907         memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
2908         memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2909
2910         brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
2911                   &pmkid.pmkid[0].BSSID);
2912         for (i = 0; i < WLAN_PMKID_LEN; i++)
2913                 brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]);
2914
2915         pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
2916         for (i = 0; i < pmkid_len; i++)
2917                 if (!memcmp
2918                     (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
2919                      ETH_ALEN))
2920                         break;
2921
2922         if ((pmkid_len > 0)
2923             && (i < pmkid_len)) {
2924                 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
2925                        sizeof(struct pmkid));
2926                 for (; i < (pmkid_len - 1); i++) {
2927                         memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
2928                                &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
2929                                ETH_ALEN);
2930                         memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
2931                                &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
2932                                WLAN_PMKID_LEN);
2933                 }
2934                 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
2935         } else
2936                 err = -EINVAL;
2937
2938         err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2939
2940         brcmf_dbg(TRACE, "Exit\n");
2941         return err;
2942
2943 }
2944
2945 static s32
2946 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
2947 {
2948         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2949         struct brcmf_if *ifp = netdev_priv(ndev);
2950         s32 err = 0;
2951
2952         brcmf_dbg(TRACE, "Enter\n");
2953         if (!check_vif_up(ifp->vif))
2954                 return -EIO;
2955
2956         memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
2957         err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2958
2959         brcmf_dbg(TRACE, "Exit\n");
2960         return err;
2961
2962 }
2963
2964 /*
2965  * PFN result doesn't have all the info which are
2966  * required by the supplicant
2967  * (For e.g IEs) Do a target Escan so that sched scan results are reported
2968  * via wl_inform_single_bss in the required format. Escan does require the
2969  * scan request in the form of cfg80211_scan_request. For timebeing, create
2970  * cfg80211_scan_request one out of the received PNO event.
2971  */
2972 static s32
2973 brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
2974                                 const struct brcmf_event_msg *e, void *data)
2975 {
2976         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2977         struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
2978         struct cfg80211_scan_request *request = NULL;
2979         struct cfg80211_ssid *ssid = NULL;
2980         struct ieee80211_channel *channel = NULL;
2981         struct wiphy *wiphy = cfg_to_wiphy(cfg);
2982         int err = 0;
2983         int channel_req = 0;
2984         int band = 0;
2985         struct brcmf_pno_scanresults_le *pfn_result;
2986         u32 result_count;
2987         u32 status;
2988
2989         brcmf_dbg(SCAN, "Enter\n");
2990
2991         if (e->event_code == BRCMF_E_PFN_NET_LOST) {
2992                 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
2993                 return 0;
2994         }
2995
2996         pfn_result = (struct brcmf_pno_scanresults_le *)data;
2997         result_count = le32_to_cpu(pfn_result->count);
2998         status = le32_to_cpu(pfn_result->status);
2999
3000         /*
3001          * PFN event is limited to fit 512 bytes so we may get
3002          * multiple NET_FOUND events. For now place a warning here.
3003          */
3004         WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
3005         brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
3006         if (result_count > 0) {
3007                 int i;
3008
3009                 request = kzalloc(sizeof(*request), GFP_KERNEL);
3010                 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
3011                 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
3012                 if (!request || !ssid || !channel) {
3013                         err = -ENOMEM;
3014                         goto out_err;
3015                 }
3016
3017                 request->wiphy = wiphy;
3018                 data += sizeof(struct brcmf_pno_scanresults_le);
3019                 netinfo_start = (struct brcmf_pno_net_info_le *)data;
3020
3021                 for (i = 0; i < result_count; i++) {
3022                         netinfo = &netinfo_start[i];
3023                         if (!netinfo) {
3024                                 brcmf_err("Invalid netinfo ptr. index: %d\n",
3025                                           i);
3026                                 err = -EINVAL;
3027                                 goto out_err;
3028                         }
3029
3030                         brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
3031                                   netinfo->SSID, netinfo->channel);
3032                         memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
3033                         ssid[i].ssid_len = netinfo->SSID_len;
3034                         request->n_ssids++;
3035
3036                         channel_req = netinfo->channel;
3037                         if (channel_req <= CH_MAX_2G_CHANNEL)
3038                                 band = NL80211_BAND_2GHZ;
3039                         else
3040                                 band = NL80211_BAND_5GHZ;
3041                         channel[i].center_freq =
3042                                 ieee80211_channel_to_frequency(channel_req,
3043                                                                band);
3044                         channel[i].band = band;
3045                         channel[i].flags |= IEEE80211_CHAN_NO_HT40;
3046                         request->channels[i] = &channel[i];
3047                         request->n_channels++;
3048                 }
3049
3050                 /* assign parsed ssid array */
3051                 if (request->n_ssids)
3052                         request->ssids = &ssid[0];
3053
3054                 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3055                         /* Abort any on-going scan */
3056                         brcmf_abort_scanning(cfg);
3057                 }
3058
3059                 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3060                 cfg->escan_info.run = brcmf_run_escan;
3061                 err = brcmf_do_escan(cfg, wiphy, ifp, request);
3062                 if (err) {
3063                         clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3064                         goto out_err;
3065                 }
3066                 cfg->sched_escan = true;
3067                 cfg->scan_request = request;
3068         } else {
3069                 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
3070                 goto out_err;
3071         }
3072
3073         kfree(ssid);
3074         kfree(channel);
3075         kfree(request);
3076         return 0;
3077
3078 out_err:
3079         kfree(ssid);
3080         kfree(channel);
3081         kfree(request);
3082         cfg80211_sched_scan_stopped(wiphy);
3083         return err;
3084 }
3085
3086 static int brcmf_dev_pno_clean(struct net_device *ndev)
3087 {
3088         int ret;
3089
3090         /* Disable pfn */
3091         ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3092         if (ret == 0) {
3093                 /* clear pfn */
3094                 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3095                                                NULL, 0);
3096         }
3097         if (ret < 0)
3098                 brcmf_err("failed code %d\n", ret);
3099
3100         return ret;
3101 }
3102
3103 static int brcmf_dev_pno_config(struct net_device *ndev)
3104 {
3105         struct brcmf_pno_param_le pfn_param;
3106
3107         memset(&pfn_param, 0, sizeof(pfn_param));
3108         pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3109
3110         /* set extra pno params */
3111         pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3112         pfn_param.repeat = BRCMF_PNO_REPEAT;
3113         pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3114
3115         /* set up pno scan fr */
3116         pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3117
3118         return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
3119                                         &pfn_param, sizeof(pfn_param));
3120 }
3121
3122 static int
3123 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3124                                 struct net_device *ndev,
3125                                 struct cfg80211_sched_scan_request *request)
3126 {
3127         struct brcmf_if *ifp = netdev_priv(ndev);
3128         struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3129         struct brcmf_pno_net_param_le pfn;
3130         int i;
3131         int ret = 0;
3132
3133         brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
3134                   request->n_match_sets, request->n_ssids);
3135         if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3136                 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
3137                 return -EAGAIN;
3138         }
3139         if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
3140                 brcmf_err("Scanning suppressed: status (%lu)\n",
3141                           cfg->scan_status);
3142                 return -EAGAIN;
3143         }
3144
3145         if (!request->n_ssids || !request->n_match_sets) {
3146                 brcmf_dbg(SCAN, "Invalid sched scan req!! n_ssids:%d\n",
3147                           request->n_ssids);
3148                 return -EINVAL;
3149         }
3150
3151         if (request->n_ssids > 0) {
3152                 for (i = 0; i < request->n_ssids; i++) {
3153                         /* Active scan req for ssids */
3154                         brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
3155                                   request->ssids[i].ssid);
3156
3157                         /*
3158                          * match_set ssids is a supert set of n_ssid list,
3159                          * so we need not add these set seperately.
3160                          */
3161                 }
3162         }
3163
3164         if (request->n_match_sets > 0) {
3165                 /* clean up everything */
3166                 ret = brcmf_dev_pno_clean(ndev);
3167                 if  (ret < 0) {
3168                         brcmf_err("failed error=%d\n", ret);
3169                         return ret;
3170                 }
3171
3172                 /* configure pno */
3173                 ret = brcmf_dev_pno_config(ndev);
3174                 if (ret < 0) {
3175                         brcmf_err("PNO setup failed!! ret=%d\n", ret);
3176                         return -EINVAL;
3177                 }
3178
3179                 /* configure each match set */
3180                 for (i = 0; i < request->n_match_sets; i++) {
3181                         struct cfg80211_ssid *ssid;
3182                         u32 ssid_len;
3183
3184                         ssid = &request->match_sets[i].ssid;
3185                         ssid_len = ssid->ssid_len;
3186
3187                         if (!ssid_len) {
3188                                 brcmf_err("skip broadcast ssid\n");
3189                                 continue;
3190                         }
3191                         pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3192                         pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3193                         pfn.wsec = cpu_to_le32(0);
3194                         pfn.infra = cpu_to_le32(1);
3195                         pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3196                         pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3197                         memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3198                         ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3199                                                        sizeof(pfn));
3200                         brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
3201                                   ret == 0 ? "set" : "failed", ssid->ssid);
3202                 }
3203                 /* Enable the PNO */
3204                 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3205                         brcmf_err("PNO enable failed!! ret=%d\n", ret);
3206                         return -EINVAL;
3207                 }
3208         } else {
3209                 return -EINVAL;
3210         }
3211
3212         return 0;
3213 }
3214
3215 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3216                                           struct net_device *ndev)
3217 {
3218         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3219
3220         brcmf_dbg(SCAN, "enter\n");
3221         brcmf_dev_pno_clean(ndev);
3222         if (cfg->sched_escan)
3223                 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true);
3224         return 0;
3225 }
3226
3227 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3228 {
3229         s32 err;
3230
3231         /* set auth */
3232         err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3233         if (err < 0) {
3234                 brcmf_err("auth error %d\n", err);
3235                 return err;
3236         }
3237         /* set wsec */
3238         err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3239         if (err < 0) {
3240                 brcmf_err("wsec error %d\n", err);
3241                 return err;
3242         }
3243         /* set upper-layer auth */
3244         err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3245         if (err < 0) {
3246                 brcmf_err("wpa_auth error %d\n", err);
3247                 return err;
3248         }
3249
3250         return 0;
3251 }
3252
3253 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3254 {
3255         if (is_rsn_ie)
3256                 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3257
3258         return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3259 }
3260
3261 static s32
3262 brcmf_configure_wpaie(struct net_device *ndev,
3263                       const struct brcmf_vs_tlv *wpa_ie,
3264                       bool is_rsn_ie)
3265 {
3266         struct brcmf_if *ifp = netdev_priv(ndev);
3267         u32 auth = 0; /* d11 open authentication */
3268         u16 count;
3269         s32 err = 0;
3270         s32 len = 0;
3271         u32 i;
3272         u32 wsec;
3273         u32 pval = 0;
3274         u32 gval = 0;
3275         u32 wpa_auth = 0;
3276         u32 offset;
3277         u8 *data;
3278         u16 rsn_cap;
3279         u32 wme_bss_disable;
3280
3281         brcmf_dbg(TRACE, "Enter\n");
3282         if (wpa_ie == NULL)
3283                 goto exit;
3284
3285         len = wpa_ie->len + TLV_HDR_LEN;
3286         data = (u8 *)wpa_ie;
3287         offset = TLV_HDR_LEN;
3288         if (!is_rsn_ie)
3289                 offset += VS_IE_FIXED_HDR_LEN;
3290         else
3291                 offset += WPA_IE_VERSION_LEN;
3292
3293         /* check for multicast cipher suite */
3294         if (offset + WPA_IE_MIN_OUI_LEN > len) {
3295                 err = -EINVAL;
3296                 brcmf_err("no multicast cipher suite\n");
3297                 goto exit;
3298         }
3299
3300         if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3301                 err = -EINVAL;
3302                 brcmf_err("ivalid OUI\n");
3303                 goto exit;
3304         }
3305         offset += TLV_OUI_LEN;
3306
3307         /* pick up multicast cipher */
3308         switch (data[offset]) {
3309         case WPA_CIPHER_NONE:
3310                 gval = 0;
3311                 break;
3312         case WPA_CIPHER_WEP_40:
3313         case WPA_CIPHER_WEP_104:
3314                 gval = WEP_ENABLED;
3315                 break;
3316         case WPA_CIPHER_TKIP:
3317                 gval = TKIP_ENABLED;
3318                 break;
3319         case WPA_CIPHER_AES_CCM:
3320                 gval = AES_ENABLED;
3321                 break;
3322         default:
3323                 err = -EINVAL;
3324                 brcmf_err("Invalid multi cast cipher info\n");
3325                 goto exit;
3326         }
3327
3328         offset++;
3329         /* walk thru unicast cipher list and pick up what we recognize */
3330         count = data[offset] + (data[offset + 1] << 8);
3331         offset += WPA_IE_SUITE_COUNT_LEN;
3332         /* Check for unicast suite(s) */
3333         if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3334                 err = -EINVAL;
3335                 brcmf_err("no unicast cipher suite\n");
3336                 goto exit;
3337         }
3338         for (i = 0; i < count; i++) {
3339                 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3340                         err = -EINVAL;
3341                         brcmf_err("ivalid OUI\n");
3342                         goto exit;
3343                 }
3344                 offset += TLV_OUI_LEN;
3345                 switch (data[offset]) {
3346                 case WPA_CIPHER_NONE:
3347                         break;
3348                 case WPA_CIPHER_WEP_40:
3349                 case WPA_CIPHER_WEP_104:
3350                         pval |= WEP_ENABLED;
3351                         break;
3352                 case WPA_CIPHER_TKIP:
3353                         pval |= TKIP_ENABLED;
3354                         break;
3355                 case WPA_CIPHER_AES_CCM:
3356                         pval |= AES_ENABLED;
3357                         break;
3358                 default:
3359                         brcmf_err("Ivalid unicast security info\n");
3360                 }
3361                 offset++;
3362         }
3363         /* walk thru auth management suite list and pick up what we recognize */
3364         count = data[offset] + (data[offset + 1] << 8);
3365         offset += WPA_IE_SUITE_COUNT_LEN;
3366         /* Check for auth key management suite(s) */
3367         if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3368                 err = -EINVAL;
3369                 brcmf_err("no auth key mgmt suite\n");
3370                 goto exit;
3371         }
3372         for (i = 0; i < count; i++) {
3373                 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3374                         err = -EINVAL;
3375                         brcmf_err("ivalid OUI\n");
3376                         goto exit;
3377                 }
3378                 offset += TLV_OUI_LEN;
3379                 switch (data[offset]) {
3380                 case RSN_AKM_NONE:
3381                         brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3382                         wpa_auth |= WPA_AUTH_NONE;
3383                         break;
3384                 case RSN_AKM_UNSPECIFIED:
3385                         brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3386                         is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3387                                     (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3388                         break;
3389                 case RSN_AKM_PSK:
3390                         brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3391                         is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3392                                     (wpa_auth |= WPA_AUTH_PSK);
3393                         break;
3394                 default:
3395                         brcmf_err("Ivalid key mgmt info\n");
3396                 }
3397                 offset++;
3398         }
3399
3400         if (is_rsn_ie) {
3401                 wme_bss_disable = 1;
3402                 if ((offset + RSN_CAP_LEN) <= len) {
3403                         rsn_cap = data[offset] + (data[offset + 1] << 8);
3404                         if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3405                                 wme_bss_disable = 0;
3406                 }
3407                 /* set wme_bss_disable to sync RSN Capabilities */
3408                 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3409                                                wme_bss_disable);
3410                 if (err < 0) {
3411                         brcmf_err("wme_bss_disable error %d\n", err);
3412                         goto exit;
3413                 }
3414         }
3415         /* FOR WPS , set SES_OW_ENABLED */
3416         wsec = (pval | gval | SES_OW_ENABLED);
3417
3418         /* set auth */
3419         err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3420         if (err < 0) {
3421                 brcmf_err("auth error %d\n", err);
3422                 goto exit;
3423         }
3424         /* set wsec */
3425         err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3426         if (err < 0) {
3427                 brcmf_err("wsec error %d\n", err);
3428                 goto exit;
3429         }
3430         /* set upper-layer auth */
3431         err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3432         if (err < 0) {
3433                 brcmf_err("wpa_auth error %d\n", err);
3434                 goto exit;
3435         }
3436
3437 exit:
3438         return err;
3439 }
3440
3441 static s32
3442 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
3443                      struct parsed_vndr_ies *vndr_ies)
3444 {
3445         struct brcmf_vs_tlv *vndrie;
3446         struct brcmf_tlv *ie;
3447         struct parsed_vndr_ie_info *parsed_info;
3448         s32 remaining_len;
3449
3450         remaining_len = (s32)vndr_ie_len;
3451         memset(vndr_ies, 0, sizeof(*vndr_ies));
3452
3453         ie = (struct brcmf_tlv *)vndr_ie_buf;
3454         while (ie) {
3455                 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3456                         goto next;
3457                 vndrie = (struct brcmf_vs_tlv *)ie;
3458                 /* len should be bigger than OUI length + one */
3459                 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3460                         brcmf_err("invalid vndr ie. length is too small %d\n",
3461                                   vndrie->len);
3462                         goto next;
3463                 }
3464                 /* if wpa or wme ie, do not add ie */
3465                 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3466                     ((vndrie->oui_type == WPA_OUI_TYPE) ||
3467                     (vndrie->oui_type == WME_OUI_TYPE))) {
3468                         brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
3469                         goto next;
3470                 }
3471
3472                 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3473
3474                 /* save vndr ie information */
3475                 parsed_info->ie_ptr = (char *)vndrie;
3476                 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3477                 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3478
3479                 vndr_ies->count++;
3480
3481                 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
3482                           parsed_info->vndrie.oui[0],
3483                           parsed_info->vndrie.oui[1],
3484                           parsed_info->vndrie.oui[2],
3485                           parsed_info->vndrie.oui_type);
3486
3487                 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
3488                         break;
3489 next:
3490                 remaining_len -= (ie->len + TLV_HDR_LEN);
3491                 if (remaining_len <= TLV_HDR_LEN)
3492                         ie = NULL;
3493                 else
3494                         ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
3495                                 TLV_HDR_LEN);
3496         }
3497         return 0;
3498 }
3499
3500 static u32
3501 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3502 {
3503
3504         __le32 iecount_le;
3505         __le32 pktflag_le;
3506
3507         strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3508         iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3509
3510         iecount_le = cpu_to_le32(1);
3511         memcpy(&iebuf[VNDR_IE_COUNT_OFFSET], &iecount_le, sizeof(iecount_le));
3512
3513         pktflag_le = cpu_to_le32(pktflag);
3514         memcpy(&iebuf[VNDR_IE_PKTFLAG_OFFSET], &pktflag_le, sizeof(pktflag_le));
3515
3516         memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3517
3518         return ie_len + VNDR_IE_HDR_SIZE;
3519 }
3520
3521 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
3522                           const u8 *vndr_ie_buf, u32 vndr_ie_len)
3523 {
3524         struct brcmf_if *ifp;
3525         struct vif_saved_ie *saved_ie;
3526         s32 err = 0;
3527         u8  *iovar_ie_buf;
3528         u8  *curr_ie_buf;
3529         u8  *mgmt_ie_buf = NULL;
3530         int mgmt_ie_buf_len;
3531         u32 *mgmt_ie_len;
3532         u32 del_add_ie_buf_len = 0;
3533         u32 total_ie_buf_len = 0;
3534         u32 parsed_ie_buf_len = 0;
3535         struct parsed_vndr_ies old_vndr_ies;
3536         struct parsed_vndr_ies new_vndr_ies;
3537         struct parsed_vndr_ie_info *vndrie_info;
3538         s32 i;
3539         u8 *ptr;
3540         int remained_buf_len;
3541
3542         if (!vif)
3543                 return -ENODEV;
3544         ifp = vif->ifp;
3545         saved_ie = &vif->saved_ie;
3546
3547         brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag);
3548         iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3549         if (!iovar_ie_buf)
3550                 return -ENOMEM;
3551         curr_ie_buf = iovar_ie_buf;
3552         switch (pktflag) {
3553         case BRCMF_VNDR_IE_PRBREQ_FLAG:
3554                 mgmt_ie_buf = saved_ie->probe_req_ie;
3555                 mgmt_ie_len = &saved_ie->probe_req_ie_len;
3556                 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
3557                 break;
3558         case BRCMF_VNDR_IE_PRBRSP_FLAG:
3559                 mgmt_ie_buf = saved_ie->probe_res_ie;
3560                 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3561                 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3562                 break;
3563         case BRCMF_VNDR_IE_BEACON_FLAG:
3564                 mgmt_ie_buf = saved_ie->beacon_ie;
3565                 mgmt_ie_len = &saved_ie->beacon_ie_len;
3566                 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
3567                 break;
3568         case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
3569                 mgmt_ie_buf = saved_ie->assoc_req_ie;
3570                 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
3571                 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
3572                 break;
3573         default:
3574                 err = -EPERM;
3575                 brcmf_err("not suitable type\n");
3576                 goto exit;
3577         }
3578
3579         if (vndr_ie_len > mgmt_ie_buf_len) {
3580                 err = -ENOMEM;
3581                 brcmf_err("extra IE size too big\n");
3582                 goto exit;
3583         }
3584
3585         /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3586         if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3587                 ptr = curr_ie_buf;
3588                 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3589                 for (i = 0; i < new_vndr_ies.count; i++) {
3590                         vndrie_info = &new_vndr_ies.ie_info[i];
3591                         memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3592                                vndrie_info->ie_len);
3593                         parsed_ie_buf_len += vndrie_info->ie_len;
3594                 }
3595         }
3596
3597         if (mgmt_ie_buf && *mgmt_ie_len) {
3598                 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3599                     (memcmp(mgmt_ie_buf, curr_ie_buf,
3600                             parsed_ie_buf_len) == 0)) {
3601                         brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
3602                         goto exit;
3603                 }
3604
3605                 /* parse old vndr_ie */
3606                 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3607
3608                 /* make a command to delete old ie */
3609                 for (i = 0; i < old_vndr_ies.count; i++) {
3610                         vndrie_info = &old_vndr_ies.ie_info[i];
3611
3612                         brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3613                                   vndrie_info->vndrie.id,
3614                                   vndrie_info->vndrie.len,
3615                                   vndrie_info->vndrie.oui[0],
3616                                   vndrie_info->vndrie.oui[1],
3617                                   vndrie_info->vndrie.oui[2]);
3618
3619                         del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3620                                                            vndrie_info->ie_ptr,
3621                                                            vndrie_info->ie_len,
3622                                                            "del");
3623                         curr_ie_buf += del_add_ie_buf_len;
3624                         total_ie_buf_len += del_add_ie_buf_len;
3625                 }
3626         }
3627
3628         *mgmt_ie_len = 0;
3629         /* Add if there is any extra IE */
3630         if (mgmt_ie_buf && parsed_ie_buf_len) {
3631                 ptr = mgmt_ie_buf;
3632
3633                 remained_buf_len = mgmt_ie_buf_len;
3634
3635                 /* make a command to add new ie */
3636                 for (i = 0; i < new_vndr_ies.count; i++) {
3637                         vndrie_info = &new_vndr_ies.ie_info[i];
3638
3639                         /* verify remained buf size before copy data */
3640                         if (remained_buf_len < (vndrie_info->vndrie.len +
3641                                                         VNDR_IE_VSIE_OFFSET)) {
3642                                 brcmf_err("no space in mgmt_ie_buf: len left %d",
3643                                           remained_buf_len);
3644                                 break;
3645                         }
3646                         remained_buf_len -= (vndrie_info->ie_len +
3647                                              VNDR_IE_VSIE_OFFSET);
3648
3649                         brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3650                                   vndrie_info->vndrie.id,
3651                                   vndrie_info->vndrie.len,
3652                                   vndrie_info->vndrie.oui[0],
3653                                   vndrie_info->vndrie.oui[1],
3654                                   vndrie_info->vndrie.oui[2]);
3655
3656                         del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3657                                                            vndrie_info->ie_ptr,
3658                                                            vndrie_info->ie_len,
3659                                                            "add");
3660
3661                         /* save the parsed IE in wl struct */
3662                         memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3663                                vndrie_info->ie_len);
3664                         *mgmt_ie_len += vndrie_info->ie_len;
3665
3666                         curr_ie_buf += del_add_ie_buf_len;
3667                         total_ie_buf_len += del_add_ie_buf_len;
3668                 }
3669         }
3670         if (total_ie_buf_len) {
3671                 err  = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3672                                                  total_ie_buf_len);
3673                 if (err)
3674                         brcmf_err("vndr ie set error : %d\n", err);
3675         }
3676
3677 exit:
3678         kfree(iovar_ie_buf);
3679         return err;
3680 }
3681
3682 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
3683 {
3684         s32 pktflags[] = {
3685                 BRCMF_VNDR_IE_PRBREQ_FLAG,
3686                 BRCMF_VNDR_IE_PRBRSP_FLAG,
3687                 BRCMF_VNDR_IE_BEACON_FLAG
3688         };
3689         int i;
3690
3691         for (i = 0; i < ARRAY_SIZE(pktflags); i++)
3692                 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
3693
3694         memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
3695         return 0;
3696 }
3697
3698 static s32
3699 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
3700                         struct cfg80211_beacon_data *beacon)
3701 {
3702         s32 err;
3703
3704         /* Set Beacon IEs to FW */
3705         err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
3706                                     beacon->tail, beacon->tail_len);
3707         if (err) {
3708                 brcmf_err("Set Beacon IE Failed\n");
3709                 return err;
3710         }
3711         brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
3712
3713         /* Set Probe Response IEs to FW */
3714         err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
3715                                     beacon->proberesp_ies,
3716                                     beacon->proberesp_ies_len);
3717         if (err)
3718                 brcmf_err("Set Probe Resp IE Failed\n");
3719         else
3720                 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
3721
3722         return err;
3723 }
3724
3725 static s32
3726 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3727                         struct cfg80211_ap_settings *settings)
3728 {
3729         s32 ie_offset;
3730         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3731         struct brcmf_if *ifp = netdev_priv(ndev);
3732         const struct brcmf_tlv *ssid_ie;
3733         struct brcmf_ssid_le ssid_le;
3734         s32 err = -EPERM;
3735         const struct brcmf_tlv *rsn_ie;
3736         const struct brcmf_vs_tlv *wpa_ie;
3737         struct brcmf_join_params join_params;
3738         enum nl80211_iftype dev_role;
3739         struct brcmf_fil_bss_enable_le bss_enable;
3740         u16 chanspec;
3741
3742         brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
3743                   settings->chandef.chan->hw_value,
3744                   settings->chandef.center_freq1, settings->chandef.width,
3745                   settings->beacon_interval, settings->dtim_period);
3746         brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
3747                   settings->ssid, settings->ssid_len, settings->auth_type,
3748                   settings->inactivity_timeout);
3749
3750         dev_role = ifp->vif->wdev.iftype;
3751
3752         memset(&ssid_le, 0, sizeof(ssid_le));
3753         if (settings->ssid == NULL || settings->ssid_len == 0) {
3754                 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
3755                 ssid_ie = brcmf_parse_tlvs(
3756                                 (u8 *)&settings->beacon.head[ie_offset],
3757                                 settings->beacon.head_len - ie_offset,
3758                                 WLAN_EID_SSID);
3759                 if (!ssid_ie)
3760                         return -EINVAL;
3761
3762                 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
3763                 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
3764                 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
3765         } else {
3766                 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
3767                 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
3768         }
3769
3770         brcmf_set_mpc(ifp, 0);
3771         brcmf_configure_arp_offload(ifp, false);
3772
3773         /* find the RSN_IE */
3774         rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
3775                                   settings->beacon.tail_len, WLAN_EID_RSN);
3776
3777         /* find the WPA_IE */
3778         wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
3779                                   settings->beacon.tail_len);
3780
3781         if ((wpa_ie != NULL || rsn_ie != NULL)) {
3782                 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
3783                 if (wpa_ie != NULL) {
3784                         /* WPA IE */
3785                         err = brcmf_configure_wpaie(ndev, wpa_ie, false);
3786                         if (err < 0)
3787                                 goto exit;
3788                 } else {
3789                         /* RSN IE */
3790                         err = brcmf_configure_wpaie(ndev,
3791                                 (struct brcmf_vs_tlv *)rsn_ie, true);
3792                         if (err < 0)
3793                                 goto exit;
3794                 }
3795         } else {
3796                 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
3797                 brcmf_configure_opensecurity(ifp);
3798         }
3799
3800         brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
3801
3802         chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef);
3803         err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
3804         if (err < 0) {
3805                 brcmf_err("Set Channel failed: chspec=%d, %d\n", chanspec, err);
3806                 goto exit;
3807         }
3808
3809         if (settings->beacon_interval) {
3810                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
3811                                             settings->beacon_interval);
3812                 if (err < 0) {
3813                         brcmf_err("Beacon Interval Set Error, %d\n", err);
3814                         goto exit;
3815                 }
3816         }
3817         if (settings->dtim_period) {
3818                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
3819                                             settings->dtim_period);
3820                 if (err < 0) {
3821                         brcmf_err("DTIM Interval Set Error, %d\n", err);
3822                         goto exit;
3823                 }
3824         }
3825
3826         if (dev_role == NL80211_IFTYPE_AP) {
3827                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
3828                 if (err < 0) {
3829                         brcmf_err("BRCMF_C_DOWN error %d\n", err);
3830                         goto exit;
3831                 }
3832                 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
3833         }
3834
3835         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
3836         if (err < 0) {
3837                 brcmf_err("SET INFRA error %d\n", err);
3838                 goto exit;
3839         }
3840         if (dev_role == NL80211_IFTYPE_AP) {
3841                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
3842                 if (err < 0) {
3843                         brcmf_err("setting AP mode failed %d\n", err);
3844                         goto exit;
3845                 }
3846                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
3847                 if (err < 0) {
3848                         brcmf_err("BRCMF_C_UP error (%d)\n", err);
3849                         goto exit;
3850                 }
3851
3852                 memset(&join_params, 0, sizeof(join_params));
3853                 /* join parameters starts with ssid */
3854                 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
3855                 /* create softap */
3856                 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
3857                                              &join_params, sizeof(join_params));
3858                 if (err < 0) {
3859                         brcmf_err("SET SSID error (%d)\n", err);
3860                         goto exit;
3861                 }
3862                 brcmf_dbg(TRACE, "AP mode configuration complete\n");
3863         } else {
3864                 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
3865                                                 sizeof(ssid_le));
3866                 if (err < 0) {
3867                         brcmf_err("setting ssid failed %d\n", err);
3868                         goto exit;
3869                 }
3870                 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
3871                 bss_enable.enable = cpu_to_le32(1);
3872                 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
3873                                                sizeof(bss_enable));
3874                 if (err < 0) {
3875                         brcmf_err("bss_enable config failed %d\n", err);
3876                         goto exit;
3877                 }
3878
3879                 brcmf_dbg(TRACE, "GO mode configuration complete\n");
3880         }
3881         clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
3882         set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
3883
3884 exit:
3885         if (err) {
3886                 brcmf_set_mpc(ifp, 1);
3887                 brcmf_configure_arp_offload(ifp, true);
3888         }
3889         return err;
3890 }
3891
3892 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
3893 {
3894         struct brcmf_if *ifp = netdev_priv(ndev);
3895         s32 err;
3896         struct brcmf_fil_bss_enable_le bss_enable;
3897         struct brcmf_join_params join_params;
3898
3899         brcmf_dbg(TRACE, "Enter\n");
3900
3901         if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
3902                 /* Due to most likely deauths outstanding we sleep */
3903                 /* first to make sure they get processed by fw. */
3904                 msleep(400);
3905
3906                 memset(&join_params, 0, sizeof(join_params));
3907                 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
3908                                              &join_params, sizeof(join_params));
3909                 if (err < 0)
3910                         brcmf_err("SET SSID error (%d)\n", err);
3911                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
3912                 if (err < 0)
3913                         brcmf_err("BRCMF_C_UP error %d\n", err);
3914                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
3915                 if (err < 0)
3916                         brcmf_err("setting AP mode failed %d\n", err);
3917                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
3918                 if (err < 0)
3919                         brcmf_err("setting INFRA mode failed %d\n", err);
3920         } else {
3921                 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
3922                 bss_enable.enable = cpu_to_le32(0);
3923                 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
3924                                                sizeof(bss_enable));
3925                 if (err < 0)
3926                         brcmf_err("bss_enable config failed %d\n", err);
3927         }
3928         brcmf_set_mpc(ifp, 1);
3929         brcmf_configure_arp_offload(ifp, true);
3930         set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
3931         clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
3932
3933         return err;
3934 }
3935
3936 static s32
3937 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
3938                              struct cfg80211_beacon_data *info)
3939 {
3940         struct brcmf_if *ifp = netdev_priv(ndev);
3941         s32 err;
3942
3943         brcmf_dbg(TRACE, "Enter\n");
3944
3945         err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
3946
3947         return err;
3948 }
3949
3950 static int
3951 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
3952                            const u8 *mac)
3953 {
3954         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3955         struct brcmf_scb_val_le scbval;
3956         struct brcmf_if *ifp = netdev_priv(ndev);
3957         s32 err;
3958
3959         if (!mac)
3960                 return -EFAULT;
3961
3962         brcmf_dbg(TRACE, "Enter %pM\n", mac);
3963
3964         if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
3965                 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
3966         if (!check_vif_up(ifp->vif))
3967                 return -EIO;
3968
3969         memcpy(&scbval.ea, mac, ETH_ALEN);
3970         scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
3971         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
3972                                      &scbval, sizeof(scbval));
3973         if (err)
3974                 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
3975
3976         brcmf_dbg(TRACE, "Exit\n");
3977         return err;
3978 }
3979
3980
3981 static void
3982 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
3983                                    struct wireless_dev *wdev,
3984                                    u16 frame_type, bool reg)
3985 {
3986         struct brcmf_cfg80211_vif *vif;
3987         u16 mgmt_type;
3988
3989         brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
3990
3991         mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
3992         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
3993         if (reg)
3994                 vif->mgmt_rx_reg |= BIT(mgmt_type);
3995         else
3996                 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
3997 }
3998
3999
4000 static int
4001 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
4002                        struct cfg80211_mgmt_tx_params *params, u64 *cookie)
4003 {
4004         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4005         struct ieee80211_channel *chan = params->chan;
4006         const u8 *buf = params->buf;
4007         size_t len = params->len;
4008         const struct ieee80211_mgmt *mgmt;
4009         struct brcmf_cfg80211_vif *vif;
4010         s32 err = 0;
4011         s32 ie_offset;
4012         s32 ie_len;
4013         struct brcmf_fil_action_frame_le *action_frame;
4014         struct brcmf_fil_af_params_le *af_params;
4015         bool ack;
4016         s32 chan_nr;
4017         u32 freq;
4018
4019         brcmf_dbg(TRACE, "Enter\n");
4020
4021         *cookie = 0;
4022
4023         mgmt = (const struct ieee80211_mgmt *)buf;
4024
4025         if (!ieee80211_is_mgmt(mgmt->frame_control)) {
4026                 brcmf_err("Driver only allows MGMT packet type\n");
4027                 return -EPERM;
4028         }
4029
4030         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4031
4032         if (ieee80211_is_probe_resp(mgmt->frame_control)) {
4033                 /* Right now the only reason to get a probe response */
4034                 /* is for p2p listen response or for p2p GO from     */
4035                 /* wpa_supplicant. Unfortunately the probe is send   */
4036                 /* on primary ndev, while dongle wants it on the p2p */
4037                 /* vif. Since this is only reason for a probe        */
4038                 /* response to be sent, the vif is taken from cfg.   */
4039                 /* If ever desired to send proberesp for non p2p     */
4040                 /* response then data should be checked for          */
4041                 /* "DIRECT-". Note in future supplicant will take    */
4042                 /* dedicated p2p wdev to do this and then this 'hack'*/
4043                 /* is not needed anymore.                            */
4044                 ie_offset =  DOT11_MGMT_HDR_LEN +
4045                              DOT11_BCN_PRB_FIXED_LEN;
4046                 ie_len = len - ie_offset;
4047                 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
4048                         vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4049                 err = brcmf_vif_set_mgmt_ie(vif,
4050                                             BRCMF_VNDR_IE_PRBRSP_FLAG,
4051                                             &buf[ie_offset],
4052                                             ie_len);
4053                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
4054                                         GFP_KERNEL);
4055         } else if (ieee80211_is_action(mgmt->frame_control)) {
4056                 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
4057                 if (af_params == NULL) {
4058                         brcmf_err("unable to allocate frame\n");
4059                         err = -ENOMEM;
4060                         goto exit;
4061                 }
4062                 action_frame = &af_params->action_frame;
4063                 /* Add the packet Id */
4064                 action_frame->packet_id = cpu_to_le32(*cookie);
4065                 /* Add BSSID */
4066                 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
4067                 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
4068                 /* Add the length exepted for 802.11 header  */
4069                 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
4070                 /* Add the channel. Use the one specified as parameter if any or
4071                  * the current one (got from the firmware) otherwise
4072                  */
4073                 if (chan)
4074                         freq = chan->center_freq;
4075                 else
4076                         brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
4077                                               &freq);
4078                 chan_nr = ieee80211_frequency_to_channel(freq);
4079                 af_params->channel = cpu_to_le32(chan_nr);
4080
4081                 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4082                        le16_to_cpu(action_frame->len));
4083
4084                 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4085                           *cookie, le16_to_cpu(action_frame->len), freq);
4086
4087                 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
4088                                                   af_params);
4089
4090                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4091                                         GFP_KERNEL);
4092                 kfree(af_params);
4093         } else {
4094                 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4095                 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
4096         }
4097
4098 exit:
4099         return err;
4100 }
4101
4102
4103 static int
4104 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4105                                         struct wireless_dev *wdev,
4106                                         u64 cookie)
4107 {
4108         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4109         struct brcmf_cfg80211_vif *vif;
4110         int err = 0;
4111
4112         brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4113
4114         vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4115         if (vif == NULL) {
4116                 brcmf_err("No p2p device available for probe response\n");
4117                 err = -ENODEV;
4118                 goto exit;
4119         }
4120         brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4121 exit:
4122         return err;
4123 }
4124
4125 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
4126                                            struct wireless_dev *wdev,
4127                                            enum nl80211_crit_proto_id proto,
4128                                            u16 duration)
4129 {
4130         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4131         struct brcmf_cfg80211_vif *vif;
4132
4133         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4134
4135         /* only DHCP support for now */
4136         if (proto != NL80211_CRIT_PROTO_DHCP)
4137                 return -EINVAL;
4138
4139         /* suppress and abort scanning */
4140         set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4141         brcmf_abort_scanning(cfg);
4142
4143         return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
4144 }
4145
4146 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
4147                                            struct wireless_dev *wdev)
4148 {
4149         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4150         struct brcmf_cfg80211_vif *vif;
4151
4152         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4153
4154         brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
4155         clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4156 }
4157
4158 static s32
4159 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp,
4160                              const struct brcmf_event_msg *e, void *data)
4161 {
4162         switch (e->reason) {
4163         case BRCMF_E_REASON_TDLS_PEER_DISCOVERED:
4164                 brcmf_dbg(TRACE, "TDLS Peer Discovered\n");
4165                 break;
4166         case BRCMF_E_REASON_TDLS_PEER_CONNECTED:
4167                 brcmf_dbg(TRACE, "TDLS Peer Connected\n");
4168                 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4169                 break;
4170         case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED:
4171                 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n");
4172                 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4173                 break;
4174         }
4175
4176         return 0;
4177 }
4178
4179 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)
4180 {
4181         int ret;
4182
4183         switch (oper) {
4184         case NL80211_TDLS_DISCOVERY_REQ:
4185                 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY;
4186                 break;
4187         case NL80211_TDLS_SETUP:
4188                 ret = BRCMF_TDLS_MANUAL_EP_CREATE;
4189                 break;
4190         case NL80211_TDLS_TEARDOWN:
4191                 ret = BRCMF_TDLS_MANUAL_EP_DELETE;
4192                 break;
4193         default:
4194                 brcmf_err("unsupported operation: %d\n", oper);
4195                 ret = -EOPNOTSUPP;
4196         }
4197         return ret;
4198 }
4199
4200 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy,
4201                                     struct net_device *ndev, const u8 *peer,
4202                                     enum nl80211_tdls_operation oper)
4203 {
4204         struct brcmf_if *ifp;
4205         struct brcmf_tdls_iovar_le info;
4206         int ret = 0;
4207
4208         ret = brcmf_convert_nl80211_tdls_oper(oper);
4209         if (ret < 0)
4210                 return ret;
4211
4212         ifp = netdev_priv(ndev);
4213         memset(&info, 0, sizeof(info));
4214         info.mode = (u8)ret;
4215         if (peer)
4216                 memcpy(info.ea, peer, ETH_ALEN);
4217
4218         ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint",
4219                                        &info, sizeof(info));
4220         if (ret < 0)
4221                 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret);
4222
4223         return ret;
4224 }
4225
4226 static struct cfg80211_ops wl_cfg80211_ops = {
4227         .add_virtual_intf = brcmf_cfg80211_add_iface,
4228         .del_virtual_intf = brcmf_cfg80211_del_iface,
4229         .change_virtual_intf = brcmf_cfg80211_change_iface,
4230         .scan = brcmf_cfg80211_scan,
4231         .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
4232         .join_ibss = brcmf_cfg80211_join_ibss,
4233         .leave_ibss = brcmf_cfg80211_leave_ibss,
4234         .get_station = brcmf_cfg80211_get_station,
4235         .set_tx_power = brcmf_cfg80211_set_tx_power,
4236         .get_tx_power = brcmf_cfg80211_get_tx_power,
4237         .add_key = brcmf_cfg80211_add_key,
4238         .del_key = brcmf_cfg80211_del_key,
4239         .get_key = brcmf_cfg80211_get_key,
4240         .set_default_key = brcmf_cfg80211_config_default_key,
4241         .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
4242         .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
4243         .connect = brcmf_cfg80211_connect,
4244         .disconnect = brcmf_cfg80211_disconnect,
4245         .suspend = brcmf_cfg80211_suspend,
4246         .resume = brcmf_cfg80211_resume,
4247         .set_pmksa = brcmf_cfg80211_set_pmksa,
4248         .del_pmksa = brcmf_cfg80211_del_pmksa,
4249         .flush_pmksa = brcmf_cfg80211_flush_pmksa,
4250         .start_ap = brcmf_cfg80211_start_ap,
4251         .stop_ap = brcmf_cfg80211_stop_ap,
4252         .change_beacon = brcmf_cfg80211_change_beacon,
4253         .del_station = brcmf_cfg80211_del_station,
4254         .sched_scan_start = brcmf_cfg80211_sched_scan_start,
4255         .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
4256         .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
4257         .mgmt_tx = brcmf_cfg80211_mgmt_tx,
4258         .remain_on_channel = brcmf_p2p_remain_on_channel,
4259         .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
4260         .start_p2p_device = brcmf_p2p_start_device,
4261         .stop_p2p_device = brcmf_p2p_stop_device,
4262         .crit_proto_start = brcmf_cfg80211_crit_proto_start,
4263         .crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
4264         .tdls_oper = brcmf_cfg80211_tdls_oper,
4265 };
4266
4267 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4268                                            enum nl80211_iftype type,
4269                                            bool pm_block)
4270 {
4271         struct brcmf_cfg80211_vif *vif;
4272
4273         brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
4274                   sizeof(*vif));
4275         vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4276         if (!vif)
4277                 return ERR_PTR(-ENOMEM);
4278
4279         vif->wdev.wiphy = cfg->wiphy;
4280         vif->wdev.iftype = type;
4281
4282         vif->pm_block = pm_block;
4283         vif->roam_off = -1;
4284
4285         brcmf_init_prof(&vif->profile);
4286
4287         list_add_tail(&vif->list, &cfg->vif_list);
4288         return vif;
4289 }
4290
4291 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
4292 {
4293         list_del(&vif->list);
4294         kfree(vif);
4295 }
4296
4297 void brcmf_cfg80211_free_netdev(struct net_device *ndev)
4298 {
4299         struct brcmf_cfg80211_vif *vif;
4300         struct brcmf_if *ifp;
4301
4302         ifp = netdev_priv(ndev);
4303         vif = ifp->vif;
4304
4305         brcmf_free_vif(vif);
4306         free_netdev(ndev);
4307 }
4308
4309 static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
4310 {
4311         u32 event = e->event_code;
4312         u32 status = e->status;
4313
4314         if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4315                 brcmf_dbg(CONN, "Processing set ssid\n");
4316                 return true;
4317         }
4318
4319         return false;
4320 }
4321
4322 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
4323 {
4324         u32 event = e->event_code;
4325         u16 flags = e->flags;
4326
4327         if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) ||
4328             (event == BRCMF_E_DISASSOC_IND) ||
4329             ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) {
4330                 brcmf_dbg(CONN, "Processing link down\n");
4331                 return true;
4332         }
4333         return false;
4334 }
4335
4336 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4337                                const struct brcmf_event_msg *e)
4338 {
4339         u32 event = e->event_code;
4340         u32 status = e->status;
4341
4342         if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4343                 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
4344                           e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
4345                 return true;
4346         }
4347
4348         if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4349                 brcmf_dbg(CONN, "Processing connecting & no network found\n");
4350                 return true;
4351         }
4352
4353         return false;
4354 }
4355
4356 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4357 {
4358         struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4359
4360         kfree(conn_info->req_ie);
4361         conn_info->req_ie = NULL;
4362         conn_info->req_ie_len = 0;
4363         kfree(conn_info->resp_ie);
4364         conn_info->resp_ie = NULL;
4365         conn_info->resp_ie_len = 0;
4366 }
4367
4368 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
4369                                struct brcmf_if *ifp)
4370 {
4371         struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4372         struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4373         u32 req_len;
4374         u32 resp_len;
4375         s32 err = 0;
4376
4377         brcmf_clear_assoc_ies(cfg);
4378
4379         err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4380                                        cfg->extra_buf, WL_ASSOC_INFO_MAX);
4381         if (err) {
4382                 brcmf_err("could not get assoc info (%d)\n", err);
4383                 return err;
4384         }
4385         assoc_info =
4386                 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4387         req_len = le32_to_cpu(assoc_info->req_len);
4388         resp_len = le32_to_cpu(assoc_info->resp_len);
4389         if (req_len) {
4390                 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4391                                                cfg->extra_buf,
4392                                                WL_ASSOC_INFO_MAX);
4393                 if (err) {
4394                         brcmf_err("could not get assoc req (%d)\n", err);
4395                         return err;
4396                 }
4397                 conn_info->req_ie_len = req_len;
4398                 conn_info->req_ie =
4399                     kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4400                             GFP_KERNEL);
4401         } else {
4402                 conn_info->req_ie_len = 0;
4403                 conn_info->req_ie = NULL;
4404         }
4405         if (resp_len) {
4406                 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4407                                                cfg->extra_buf,
4408                                                WL_ASSOC_INFO_MAX);
4409                 if (err) {
4410                         brcmf_err("could not get assoc resp (%d)\n", err);
4411                         return err;
4412                 }
4413                 conn_info->resp_ie_len = resp_len;
4414                 conn_info->resp_ie =
4415                     kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4416                             GFP_KERNEL);
4417         } else {
4418                 conn_info->resp_ie_len = 0;
4419                 conn_info->resp_ie = NULL;
4420         }
4421         brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
4422                   conn_info->req_ie_len, conn_info->resp_ie_len);
4423
4424         return err;
4425 }
4426
4427 static s32
4428 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4429                        struct net_device *ndev,
4430                        const struct brcmf_event_msg *e)
4431 {
4432         struct brcmf_if *ifp = netdev_priv(ndev);
4433         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4434         struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4435         struct wiphy *wiphy = cfg_to_wiphy(cfg);
4436         struct ieee80211_channel *notify_channel = NULL;
4437         struct ieee80211_supported_band *band;
4438         struct brcmf_bss_info_le *bi;
4439         struct brcmu_chan ch;
4440         u32 freq;
4441         s32 err = 0;
4442         u8 *buf;
4443
4444         brcmf_dbg(TRACE, "Enter\n");
4445
4446         brcmf_get_assoc_ies(cfg, ifp);
4447         memcpy(profile->bssid, e->addr, ETH_ALEN);
4448         brcmf_update_bss_info(cfg, ifp);
4449
4450         buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4451         if (buf == NULL) {
4452                 err = -ENOMEM;
4453                 goto done;
4454         }
4455
4456         /* data sent to dongle has to be little endian */
4457         *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4458         err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4459                                      buf, WL_BSS_INFO_MAX);
4460
4461         if (err)
4462                 goto done;
4463
4464         bi = (struct brcmf_bss_info_le *)(buf + 4);
4465         ch.chspec = le16_to_cpu(bi->chanspec);
4466         cfg->d11inf.decchspec(&ch);
4467
4468         if (ch.band == BRCMU_CHAN_BAND_2G)
4469                 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4470         else
4471                 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4472
4473         freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
4474         notify_channel = ieee80211_get_channel(wiphy, freq);
4475
4476 done:
4477         kfree(buf);
4478         cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4479                         conn_info->req_ie, conn_info->req_ie_len,
4480                         conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4481         brcmf_dbg(CONN, "Report roaming result\n");
4482
4483         set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4484         brcmf_dbg(TRACE, "Exit\n");
4485         return err;
4486 }
4487
4488 static s32
4489 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4490                        struct net_device *ndev, const struct brcmf_event_msg *e,
4491                        bool completed)
4492 {
4493         struct brcmf_if *ifp = netdev_priv(ndev);
4494         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4495         struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4496
4497         brcmf_dbg(TRACE, "Enter\n");
4498
4499         if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4500                                &ifp->vif->sme_state)) {
4501                 if (completed) {
4502                         brcmf_get_assoc_ies(cfg, ifp);
4503                         memcpy(profile->bssid, e->addr, ETH_ALEN);
4504                         brcmf_update_bss_info(cfg, ifp);
4505                         set_bit(BRCMF_VIF_STATUS_CONNECTED,
4506                                 &ifp->vif->sme_state);
4507                 }
4508                 cfg80211_connect_result(ndev,
4509                                         (u8 *)profile->bssid,
4510                                         conn_info->req_ie,
4511                                         conn_info->req_ie_len,
4512                                         conn_info->resp_ie,
4513                                         conn_info->resp_ie_len,
4514                                         completed ? WLAN_STATUS_SUCCESS :
4515                                                     WLAN_STATUS_AUTH_TIMEOUT,
4516                                         GFP_KERNEL);
4517                 brcmf_dbg(CONN, "Report connect result - connection %s\n",
4518                           completed ? "succeeded" : "failed");
4519         }
4520         brcmf_dbg(TRACE, "Exit\n");
4521         return 0;
4522 }
4523
4524 static s32
4525 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4526                                struct net_device *ndev,
4527                                const struct brcmf_event_msg *e, void *data)
4528 {
4529         static int generation;
4530         u32 event = e->event_code;
4531         u32 reason = e->reason;
4532         struct station_info sinfo;
4533
4534         brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
4535         if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
4536             ndev != cfg_to_ndev(cfg)) {
4537                 brcmf_dbg(CONN, "AP mode link down\n");
4538                 complete(&cfg->vif_disabled);
4539                 return 0;
4540         }
4541
4542         if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4543             (reason == BRCMF_E_STATUS_SUCCESS)) {
4544                 memset(&sinfo, 0, sizeof(sinfo));
4545                 sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
4546                 if (!data) {
4547                         brcmf_err("No IEs present in ASSOC/REASSOC_IND");
4548                         return -EINVAL;
4549                 }
4550                 sinfo.assoc_req_ies = data;
4551                 sinfo.assoc_req_ies_len = e->datalen;
4552                 generation++;
4553                 sinfo.generation = generation;
4554                 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
4555         } else if ((event == BRCMF_E_DISASSOC_IND) ||
4556                    (event == BRCMF_E_DEAUTH_IND) ||
4557                    (event == BRCMF_E_DEAUTH)) {
4558                 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
4559         }
4560         return 0;
4561 }
4562
4563 static s32
4564 brcmf_notify_connect_status(struct brcmf_if *ifp,
4565                             const struct brcmf_event_msg *e, void *data)
4566 {
4567         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4568         struct net_device *ndev = ifp->ndev;
4569         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4570         struct ieee80211_channel *chan;
4571         s32 err = 0;
4572
4573         if ((e->event_code == BRCMF_E_DEAUTH) ||
4574             (e->event_code == BRCMF_E_DEAUTH_IND) ||
4575             (e->event_code == BRCMF_E_DISASSOC_IND) ||
4576             ((e->event_code == BRCMF_E_LINK) && (!e->flags))) {
4577                 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4578         }
4579
4580         if (brcmf_is_apmode(ifp->vif)) {
4581                 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4582         } else if (brcmf_is_linkup(e)) {
4583                 brcmf_dbg(CONN, "Linkup\n");
4584                 if (brcmf_is_ibssmode(ifp->vif)) {
4585                         chan = ieee80211_get_channel(cfg->wiphy, cfg->channel);
4586                         memcpy(profile->bssid, e->addr, ETH_ALEN);
4587                         wl_inform_ibss(cfg, ndev, e->addr);
4588                         cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL);
4589                         clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4590                                   &ifp->vif->sme_state);
4591                         set_bit(BRCMF_VIF_STATUS_CONNECTED,
4592                                 &ifp->vif->sme_state);
4593                 } else
4594                         brcmf_bss_connect_done(cfg, ndev, e, true);
4595         } else if (brcmf_is_linkdown(e)) {
4596                 brcmf_dbg(CONN, "Linkdown\n");
4597                 if (!brcmf_is_ibssmode(ifp->vif)) {
4598                         brcmf_bss_connect_done(cfg, ndev, e, false);
4599                 }
4600                 brcmf_link_down(ifp->vif);
4601                 brcmf_init_prof(ndev_to_prof(ndev));
4602                 if (ndev != cfg_to_ndev(cfg))
4603                         complete(&cfg->vif_disabled);
4604         } else if (brcmf_is_nonetwork(cfg, e)) {
4605                 if (brcmf_is_ibssmode(ifp->vif))
4606                         clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4607                                   &ifp->vif->sme_state);
4608                 else
4609                         brcmf_bss_connect_done(cfg, ndev, e, false);
4610         }
4611
4612         return err;
4613 }
4614
4615 static s32
4616 brcmf_notify_roaming_status(struct brcmf_if *ifp,
4617                             const struct brcmf_event_msg *e, void *data)
4618 {
4619         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4620         u32 event = e->event_code;
4621         u32 status = e->status;
4622
4623         if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4624                 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4625                         brcmf_bss_roaming_done(cfg, ifp->ndev, e);
4626                 else
4627                         brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
4628         }
4629
4630         return 0;
4631 }
4632
4633 static s32
4634 brcmf_notify_mic_status(struct brcmf_if *ifp,
4635                         const struct brcmf_event_msg *e, void *data)
4636 {
4637         u16 flags = e->flags;
4638         enum nl80211_key_type key_type;
4639
4640         if (flags & BRCMF_EVENT_MSG_GROUP)
4641                 key_type = NL80211_KEYTYPE_GROUP;
4642         else
4643                 key_type = NL80211_KEYTYPE_PAIRWISE;
4644
4645         cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
4646                                      NULL, GFP_KERNEL);
4647
4648         return 0;
4649 }
4650
4651 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
4652                                   const struct brcmf_event_msg *e, void *data)
4653 {
4654         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4655         struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
4656         struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
4657         struct brcmf_cfg80211_vif *vif;
4658
4659         brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n",
4660                   ifevent->action, ifevent->flags, ifevent->ifidx,
4661                   ifevent->bssidx);
4662
4663         mutex_lock(&event->vif_event_lock);
4664         event->action = ifevent->action;
4665         vif = event->vif;
4666
4667         switch (ifevent->action) {
4668         case BRCMF_E_IF_ADD:
4669                 /* waiting process may have timed out */
4670                 if (!cfg->vif_event.vif) {
4671                         mutex_unlock(&event->vif_event_lock);
4672                         return -EBADF;
4673                 }
4674
4675                 ifp->vif = vif;
4676                 vif->ifp = ifp;
4677                 if (ifp->ndev) {
4678                         vif->wdev.netdev = ifp->ndev;
4679                         ifp->ndev->ieee80211_ptr = &vif->wdev;
4680                         SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
4681                 }
4682                 mutex_unlock(&event->vif_event_lock);
4683                 wake_up(&event->vif_wq);
4684                 return 0;
4685
4686         case BRCMF_E_IF_DEL:
4687                 mutex_unlock(&event->vif_event_lock);
4688                 /* event may not be upon user request */
4689                 if (brcmf_cfg80211_vif_event_armed(cfg))
4690                         wake_up(&event->vif_wq);
4691                 return 0;
4692
4693         case BRCMF_E_IF_CHANGE:
4694                 mutex_unlock(&event->vif_event_lock);
4695                 wake_up(&event->vif_wq);
4696                 return 0;
4697
4698         default:
4699                 mutex_unlock(&event->vif_event_lock);
4700                 break;
4701         }
4702         return -EINVAL;
4703 }
4704
4705 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
4706 {
4707         conf->frag_threshold = (u32)-1;
4708         conf->rts_threshold = (u32)-1;
4709         conf->retry_short = (u32)-1;
4710         conf->retry_long = (u32)-1;
4711         conf->tx_power = -1;
4712 }
4713
4714 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
4715 {
4716         brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
4717                             brcmf_notify_connect_status);
4718         brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
4719                             brcmf_notify_connect_status);
4720         brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
4721                             brcmf_notify_connect_status);
4722         brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
4723                             brcmf_notify_connect_status);
4724         brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
4725                             brcmf_notify_connect_status);
4726         brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
4727                             brcmf_notify_connect_status);
4728         brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
4729                             brcmf_notify_roaming_status);
4730         brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
4731                             brcmf_notify_mic_status);
4732         brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
4733                             brcmf_notify_connect_status);
4734         brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
4735                             brcmf_notify_sched_scan_results);
4736         brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
4737                             brcmf_notify_vif_event);
4738         brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
4739                             brcmf_p2p_notify_rx_mgmt_p2p_probereq);
4740         brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
4741                             brcmf_p2p_notify_listen_complete);
4742         brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
4743                             brcmf_p2p_notify_action_frame_rx);
4744         brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
4745                             brcmf_p2p_notify_action_tx_complete);
4746         brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
4747                             brcmf_p2p_notify_action_tx_complete);
4748 }
4749
4750 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
4751 {
4752         kfree(cfg->conf);
4753         cfg->conf = NULL;
4754         kfree(cfg->escan_ioctl_buf);
4755         cfg->escan_ioctl_buf = NULL;
4756         kfree(cfg->extra_buf);
4757         cfg->extra_buf = NULL;
4758         kfree(cfg->pmk_list);
4759         cfg->pmk_list = NULL;
4760 }
4761
4762 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
4763 {
4764         cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
4765         if (!cfg->conf)
4766                 goto init_priv_mem_out;
4767         cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
4768         if (!cfg->escan_ioctl_buf)
4769                 goto init_priv_mem_out;
4770         cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
4771         if (!cfg->extra_buf)
4772                 goto init_priv_mem_out;
4773         cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
4774         if (!cfg->pmk_list)
4775                 goto init_priv_mem_out;
4776
4777         return 0;
4778
4779 init_priv_mem_out:
4780         brcmf_deinit_priv_mem(cfg);
4781
4782         return -ENOMEM;
4783 }
4784
4785 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
4786 {
4787         s32 err = 0;
4788
4789         cfg->scan_request = NULL;
4790         cfg->pwr_save = true;
4791         cfg->active_scan = true;        /* we do active scan per default */
4792         cfg->dongle_up = false;         /* dongle is not up yet */
4793         err = brcmf_init_priv_mem(cfg);
4794         if (err)
4795                 return err;
4796         brcmf_register_event_handlers(cfg);
4797         mutex_init(&cfg->usr_sync);
4798         brcmf_init_escan(cfg);
4799         brcmf_init_conf(cfg->conf);
4800         init_completion(&cfg->vif_disabled);
4801         return err;
4802 }
4803
4804 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
4805 {
4806         cfg->dongle_up = false; /* dongle down */
4807         brcmf_abort_scanning(cfg);
4808         brcmf_deinit_priv_mem(cfg);
4809 }
4810
4811 static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
4812 {
4813         init_waitqueue_head(&event->vif_wq);
4814         mutex_init(&event->vif_event_lock);
4815 }
4816
4817 static s32
4818 brcmf_dongle_roam(struct brcmf_if *ifp, u32 bcn_timeout)
4819 {
4820         s32 err = 0;
4821         __le32 roamtrigger[2];
4822         __le32 roam_delta[2];
4823
4824         /*
4825          * Setup timeout if Beacons are lost and roam is
4826          * off to report link down
4827          */
4828         if (brcmf_roamoff) {
4829                 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
4830                 if (err) {
4831                         brcmf_err("bcn_timeout error (%d)\n", err);
4832                         goto dongle_rom_out;
4833                 }
4834         }
4835
4836         /*
4837          * Enable/Disable built-in roaming to allow supplicant
4838          * to take care of roaming
4839          */
4840         brcmf_dbg(INFO, "Internal Roaming = %s\n",
4841                   brcmf_roamoff ? "Off" : "On");
4842         err = brcmf_fil_iovar_int_set(ifp, "roam_off", !!(brcmf_roamoff));
4843         if (err) {
4844                 brcmf_err("roam_off error (%d)\n", err);
4845                 goto dongle_rom_out;
4846         }
4847
4848         roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
4849         roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
4850         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
4851                                      (void *)roamtrigger, sizeof(roamtrigger));
4852         if (err) {
4853                 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
4854                 goto dongle_rom_out;
4855         }
4856
4857         roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
4858         roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
4859         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
4860                                      (void *)roam_delta, sizeof(roam_delta));
4861         if (err) {
4862                 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
4863                 goto dongle_rom_out;
4864         }
4865
4866 dongle_rom_out:
4867         return err;
4868 }
4869
4870 static s32
4871 brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time,
4872                       s32 scan_unassoc_time, s32 scan_passive_time)
4873 {
4874         s32 err = 0;
4875
4876         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
4877                                     scan_assoc_time);
4878         if (err) {
4879                 if (err == -EOPNOTSUPP)
4880                         brcmf_dbg(INFO, "Scan assoc time is not supported\n");
4881                 else
4882                         brcmf_err("Scan assoc time error (%d)\n", err);
4883                 goto dongle_scantime_out;
4884         }
4885         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
4886                                     scan_unassoc_time);
4887         if (err) {
4888                 if (err == -EOPNOTSUPP)
4889                         brcmf_dbg(INFO, "Scan unassoc time is not supported\n");
4890                 else
4891                         brcmf_err("Scan unassoc time error (%d)\n", err);
4892                 goto dongle_scantime_out;
4893         }
4894
4895         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
4896                                     scan_passive_time);
4897         if (err) {
4898                 if (err == -EOPNOTSUPP)
4899                         brcmf_dbg(INFO, "Scan passive time is not supported\n");
4900                 else
4901                         brcmf_err("Scan passive time error (%d)\n", err);
4902                 goto dongle_scantime_out;
4903         }
4904
4905 dongle_scantime_out:
4906         return err;
4907 }
4908
4909 /* Filter the list of channels received from firmware counting only
4910  * the 20MHz channels. The wiphy band data only needs those which get
4911  * flagged to indicate if they can take part in higher bandwidth.
4912  */
4913 static void brcmf_count_20mhz_channels(struct brcmf_cfg80211_info *cfg,
4914                                        struct brcmf_chanspec_list *chlist,
4915                                        u32 chcnt[])
4916 {
4917         u32 total = le32_to_cpu(chlist->count);
4918         struct brcmu_chan ch;
4919         int i;
4920
4921         for (i = 0; i <= total; i++) {
4922                 ch.chspec = (u16)le32_to_cpu(chlist->element[i]);
4923                 cfg->d11inf.decchspec(&ch);
4924
4925                 /* Firmware gives a ordered list. We skip non-20MHz
4926                  * channels is 2G. For 5G we can abort upon reaching
4927                  * a non-20MHz channel in the list.
4928                  */
4929                 if (ch.bw != BRCMU_CHAN_BW_20) {
4930                         if (ch.band == BRCMU_CHAN_BAND_5G)
4931                                 break;
4932                         else
4933                                 continue;
4934                 }
4935
4936                 if (ch.band == BRCMU_CHAN_BAND_2G)
4937                         chcnt[0] += 1;
4938                 else if (ch.band == BRCMU_CHAN_BAND_5G)
4939                         chcnt[1] += 1;
4940         }
4941 }
4942
4943 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel,
4944                                            struct brcmu_chan *ch)
4945 {
4946         u32 ht40_flag;
4947
4948         ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40;
4949         if (ch->sb == BRCMU_CHAN_SB_U) {
4950                 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
4951                         channel->flags &= ~IEEE80211_CHAN_NO_HT40;
4952                 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS;
4953         } else {
4954                 /* It should be one of
4955                  * IEEE80211_CHAN_NO_HT40 or
4956                  * IEEE80211_CHAN_NO_HT40PLUS
4957                  */
4958                 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
4959                 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
4960                         channel->flags |= IEEE80211_CHAN_NO_HT40MINUS;
4961         }
4962 }
4963
4964 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
4965                                     u32 bw_cap[])
4966 {
4967         struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
4968         struct ieee80211_supported_band *band;
4969         struct ieee80211_channel *channel;
4970         struct wiphy *wiphy;
4971         struct brcmf_chanspec_list *list;
4972         struct brcmu_chan ch;
4973         int err;
4974         u8 *pbuf;
4975         u32 i, j;
4976         u32 total;
4977         u32 chaninfo;
4978         u32 chcnt[2] = { 0, 0 };
4979         u32 index;
4980
4981         pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
4982
4983         if (pbuf == NULL)
4984                 return -ENOMEM;
4985
4986         list = (struct brcmf_chanspec_list *)pbuf;
4987
4988         err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
4989                                        BRCMF_DCMD_MEDLEN);
4990         if (err) {
4991                 brcmf_err("get chanspecs error (%d)\n", err);
4992                 goto fail_pbuf;
4993         }
4994
4995         brcmf_count_20mhz_channels(cfg, list, chcnt);
4996         wiphy = cfg_to_wiphy(cfg);
4997         if (chcnt[0]) {
4998                 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz),
4999                                GFP_KERNEL);
5000                 if (band == NULL) {
5001                         err = -ENOMEM;
5002                         goto fail_pbuf;
5003                 }
5004                 band->channels = kcalloc(chcnt[0], sizeof(*channel),
5005                                          GFP_KERNEL);
5006                 if (band->channels == NULL) {
5007                         kfree(band);
5008                         err = -ENOMEM;
5009                         goto fail_pbuf;
5010                 }
5011                 band->n_channels = 0;
5012                 wiphy->bands[IEEE80211_BAND_2GHZ] = band;
5013         }
5014         if (chcnt[1]) {
5015                 band = kmemdup(&__wl_band_5ghz_a, sizeof(__wl_band_5ghz_a),
5016                                GFP_KERNEL);
5017                 if (band == NULL) {
5018                         err = -ENOMEM;
5019                         goto fail_band2g;
5020                 }
5021                 band->channels = kcalloc(chcnt[1], sizeof(*channel),
5022                                          GFP_KERNEL);
5023                 if (band->channels == NULL) {
5024                         kfree(band);
5025                         err = -ENOMEM;
5026                         goto fail_band2g;
5027                 }
5028                 band->n_channels = 0;
5029                 wiphy->bands[IEEE80211_BAND_5GHZ] = band;
5030         }
5031
5032         total = le32_to_cpu(list->count);
5033         for (i = 0; i < total; i++) {
5034                 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5035                 cfg->d11inf.decchspec(&ch);
5036
5037                 if (ch.band == BRCMU_CHAN_BAND_2G) {
5038                         band = wiphy->bands[IEEE80211_BAND_2GHZ];
5039                 } else if (ch.band == BRCMU_CHAN_BAND_5G) {
5040                         band = wiphy->bands[IEEE80211_BAND_5GHZ];
5041                 } else {
5042                         brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec);
5043                         continue;
5044                 }
5045                 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) &&
5046                     ch.bw == BRCMU_CHAN_BW_40)
5047                         continue;
5048                 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) &&
5049                     ch.bw == BRCMU_CHAN_BW_80)
5050                         continue;
5051
5052                 channel = band->channels;
5053                 index = band->n_channels;
5054                 for (j = 0; j < band->n_channels; j++) {
5055                         if (channel[j].hw_value == ch.chnum) {
5056                                 index = j;
5057                                 break;
5058                         }
5059                 }
5060                 channel[index].center_freq =
5061                         ieee80211_channel_to_frequency(ch.chnum, band->band);
5062                 channel[index].hw_value = ch.chnum;
5063
5064                 /* assuming the chanspecs order is HT20,
5065                  * HT40 upper, HT40 lower, and VHT80.
5066                  */
5067                 if (ch.bw == BRCMU_CHAN_BW_80) {
5068                         channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ;
5069                 } else if (ch.bw == BRCMU_CHAN_BW_40) {
5070                         brcmf_update_bw40_channel_flag(&channel[index], &ch);
5071                 } else {
5072                         /* disable other bandwidths for now as mentioned
5073                          * order assure they are enabled for subsequent
5074                          * chanspecs.
5075                          */
5076                         channel[index].flags = IEEE80211_CHAN_NO_HT40 |
5077                                                IEEE80211_CHAN_NO_80MHZ;
5078                         ch.bw = BRCMU_CHAN_BW_20;
5079                         cfg->d11inf.encchspec(&ch);
5080                         chaninfo = ch.chspec;
5081                         err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info",
5082                                                        &chaninfo);
5083                         if (!err) {
5084                                 if (chaninfo & WL_CHAN_RADAR)
5085                                         channel[index].flags |=
5086                                                 (IEEE80211_CHAN_RADAR |
5087                                                  IEEE80211_CHAN_NO_IR);
5088                                 if (chaninfo & WL_CHAN_PASSIVE)
5089                                         channel[index].flags |=
5090                                                 IEEE80211_CHAN_NO_IR;
5091                         }
5092                 }
5093                 if (index == band->n_channels)
5094                         band->n_channels++;
5095         }
5096         kfree(pbuf);
5097         return 0;
5098
5099 fail_band2g:
5100         kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5101         kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5102         wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
5103 fail_pbuf:
5104         kfree(pbuf);
5105         return err;
5106 }
5107
5108 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg)
5109 {
5110         struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5111         struct ieee80211_supported_band *band;
5112         struct brcmf_fil_bwcap_le band_bwcap;
5113         struct brcmf_chanspec_list *list;
5114         u8 *pbuf;
5115         u32 val;
5116         int err;
5117         struct brcmu_chan ch;
5118         u32 num_chan;
5119         int i, j;
5120
5121         /* verify support for bw_cap command */
5122         val = WLC_BAND_5G;
5123         err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val);
5124
5125         if (!err) {
5126                 /* only set 2G bandwidth using bw_cap command */
5127                 band_bwcap.band = cpu_to_le32(WLC_BAND_2G);
5128                 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ);
5129                 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap,
5130                                                sizeof(band_bwcap));
5131         } else {
5132                 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n");
5133                 val = WLC_N_BW_40ALL;
5134                 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val);
5135         }
5136
5137         if (!err) {
5138                 /* update channel info in 2G band */
5139                 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5140
5141                 if (pbuf == NULL)
5142                         return -ENOMEM;
5143
5144                 ch.band = BRCMU_CHAN_BAND_2G;
5145                 ch.bw = BRCMU_CHAN_BW_40;
5146                 ch.chnum = 0;
5147                 cfg->d11inf.encchspec(&ch);
5148
5149                 /* pass encoded chanspec in query */
5150                 *(__le16 *)pbuf = cpu_to_le16(ch.chspec);
5151
5152                 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5153                                                BRCMF_DCMD_MEDLEN);
5154                 if (err) {
5155                         brcmf_err("get chanspecs error (%d)\n", err);
5156                         kfree(pbuf);
5157                         return err;
5158                 }
5159
5160                 band = cfg_to_wiphy(cfg)->bands[IEEE80211_BAND_2GHZ];
5161                 list = (struct brcmf_chanspec_list *)pbuf;
5162                 num_chan = le32_to_cpu(list->count);
5163                 for (i = 0; i < num_chan; i++) {
5164                         ch.chspec = (u16)le32_to_cpu(list->element[i]);
5165                         cfg->d11inf.decchspec(&ch);
5166                         if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G))
5167                                 continue;
5168                         if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40))
5169                                 continue;
5170                         for (j = 0; j < band->n_channels; j++) {
5171                                 if (band->channels[j].hw_value == ch.chnum)
5172                                         break;
5173                         }
5174                         if (WARN_ON(j == band->n_channels))
5175                                 continue;
5176
5177                         brcmf_update_bw40_channel_flag(&band->channels[j], &ch);
5178                 }
5179         }
5180         return err;
5181 }
5182
5183 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[])
5184 {
5185         u32 band, mimo_bwcap;
5186         int err;
5187
5188         band = WLC_BAND_2G;
5189         err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5190         if (!err) {
5191                 bw_cap[IEEE80211_BAND_2GHZ] = band;
5192                 band = WLC_BAND_5G;
5193                 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5194                 if (!err) {
5195                         bw_cap[IEEE80211_BAND_5GHZ] = band;
5196                         return;
5197                 }
5198                 WARN_ON(1);
5199                 return;
5200         }
5201         brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n");
5202         mimo_bwcap = 0;
5203         err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap);
5204         if (err)
5205                 /* assume 20MHz if firmware does not give a clue */
5206                 mimo_bwcap = WLC_N_BW_20ALL;
5207
5208         switch (mimo_bwcap) {
5209         case WLC_N_BW_40ALL:
5210                 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT;
5211                 /* fall-thru */
5212         case WLC_N_BW_20IN2G_40IN5G:
5213                 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT;
5214                 /* fall-thru */
5215         case WLC_N_BW_20ALL:
5216                 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT;
5217                 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT;
5218                 break;
5219         default:
5220                 brcmf_err("invalid mimo_bw_cap value\n");
5221         }
5222 }
5223
5224 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band,
5225                                 u32 bw_cap[2], u32 nchain)
5226 {
5227         band->ht_cap.ht_supported = true;
5228         if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) {
5229                 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
5230                 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5231         }
5232         band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
5233         band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
5234         band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
5235         band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
5236         memset(band->ht_cap.mcs.rx_mask, 0xff, nchain);
5237         band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
5238 }
5239
5240 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp)
5241 {
5242         u16 mcs_map;
5243         int i;
5244
5245         for (i = 0, mcs_map = 0xFFFF; i < nchain; i++)
5246                 mcs_map = (mcs_map << 2) | supp;
5247
5248         return cpu_to_le16(mcs_map);
5249 }
5250
5251 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band,
5252                                  u32 bw_cap[2], u32 nchain)
5253 {
5254         __le16 mcs_map;
5255
5256         /* not allowed in 2.4G band */
5257         if (band->band == IEEE80211_BAND_2GHZ)
5258                 return;
5259
5260         band->vht_cap.vht_supported = true;
5261         /* 80MHz is mandatory */
5262         band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80;
5263         if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) {
5264                 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
5265                 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160;
5266         }
5267         /* all support 256-QAM */
5268         mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9);
5269         band->vht_cap.vht_mcs.rx_mcs_map = mcs_map;
5270         band->vht_cap.vht_mcs.tx_mcs_map = mcs_map;
5271 }
5272
5273 static int brcmf_setup_wiphybands(struct wiphy *wiphy)
5274 {
5275         struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5276         struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5277         u32 nmode = 0;
5278         u32 vhtmode = 0;
5279         u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT };
5280         u32 rxchain;
5281         u32 nchain;
5282         int err;
5283         s32 i;
5284         struct ieee80211_supported_band *band;
5285
5286         (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode);
5287         err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
5288         if (err) {
5289                 brcmf_err("nmode error (%d)\n", err);
5290         } else {
5291                 brcmf_get_bwcap(ifp, bw_cap);
5292         }
5293         brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n",
5294                   nmode, vhtmode, bw_cap[IEEE80211_BAND_2GHZ],
5295                   bw_cap[IEEE80211_BAND_5GHZ]);
5296
5297         err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain);
5298         if (err) {
5299                 brcmf_err("rxchain error (%d)\n", err);
5300                 nchain = 1;
5301         } else {
5302                 for (nchain = 0; rxchain; nchain++)
5303                         rxchain = rxchain & (rxchain - 1);
5304         }
5305         brcmf_dbg(INFO, "nchain=%d\n", nchain);
5306
5307         err = brcmf_construct_chaninfo(cfg, bw_cap);
5308         if (err) {
5309                 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err);
5310                 return err;
5311         }
5312
5313         wiphy = cfg_to_wiphy(cfg);
5314         for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) {
5315                 band = wiphy->bands[i];
5316                 if (band == NULL)
5317                         continue;
5318
5319                 if (nmode)
5320                         brcmf_update_ht_cap(band, bw_cap, nchain);
5321                 if (vhtmode)
5322                         brcmf_update_vht_cap(band, bw_cap, nchain);
5323         }
5324
5325         return 0;
5326 }
5327
5328 static const struct ieee80211_iface_limit brcmf_iface_limits[] = {
5329         {
5330                 .max = 2,
5331                 .types = BIT(NL80211_IFTYPE_STATION) |
5332                          BIT(NL80211_IFTYPE_ADHOC) |
5333                          BIT(NL80211_IFTYPE_AP)
5334         },
5335         {
5336                 .max = 1,
5337                 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5338                          BIT(NL80211_IFTYPE_P2P_GO)
5339         },
5340         {
5341                 .max = 1,
5342                 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5343         }
5344 };
5345 static struct ieee80211_iface_combination brcmf_iface_combos[] = {
5346         {
5347                  .max_interfaces = BRCMF_IFACE_MAX_CNT,
5348                  .num_different_channels = 1,
5349                  .n_limits = ARRAY_SIZE(brcmf_iface_limits),
5350                  .limits = brcmf_iface_limits
5351         }
5352 };
5353
5354 static const struct ieee80211_txrx_stypes
5355 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
5356         [NL80211_IFTYPE_STATION] = {
5357                 .tx = 0xffff,
5358                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5359                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5360         },
5361         [NL80211_IFTYPE_P2P_CLIENT] = {
5362                 .tx = 0xffff,
5363                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5364                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5365         },
5366         [NL80211_IFTYPE_P2P_GO] = {
5367                 .tx = 0xffff,
5368                 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
5369                       BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
5370                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
5371                       BIT(IEEE80211_STYPE_DISASSOC >> 4) |
5372                       BIT(IEEE80211_STYPE_AUTH >> 4) |
5373                       BIT(IEEE80211_STYPE_DEAUTH >> 4) |
5374                       BIT(IEEE80211_STYPE_ACTION >> 4)
5375         },
5376         [NL80211_IFTYPE_P2P_DEVICE] = {
5377                 .tx = 0xffff,
5378                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5379                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5380         }
5381 };
5382
5383 static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
5384 {
5385         /* scheduled scan settings */
5386         wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
5387         wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
5388         wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5389         wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
5390 }
5391
5392 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
5393 {
5394         struct ieee80211_iface_combination ifc_combo;
5395         wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
5396         wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5397         wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
5398         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
5399                                  BIT(NL80211_IFTYPE_ADHOC) |
5400                                  BIT(NL80211_IFTYPE_AP) |
5401                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
5402                                  BIT(NL80211_IFTYPE_P2P_GO) |
5403                                  BIT(NL80211_IFTYPE_P2P_DEVICE);
5404         /* need VSDB firmware feature for concurrent channels */
5405         ifc_combo = brcmf_iface_combos[0];
5406         if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
5407                 ifc_combo.num_different_channels = 2;
5408         wiphy->iface_combinations = kmemdup(&ifc_combo,
5409                                             sizeof(ifc_combo),
5410                                             GFP_KERNEL);
5411         wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
5412         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
5413         wiphy->cipher_suites = __wl_cipher_suites;
5414         wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
5415         wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
5416                         WIPHY_FLAG_OFFCHAN_TX |
5417                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
5418                         WIPHY_FLAG_SUPPORTS_TDLS;
5419         if (!brcmf_roamoff)
5420                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
5421         wiphy->mgmt_stypes = brcmf_txrx_stypes;
5422         wiphy->max_remain_on_channel_duration = 5000;
5423         brcmf_wiphy_pno_params(wiphy);
5424
5425         /* vendor commands/events support */
5426         wiphy->vendor_commands = brcmf_vendor_cmds;
5427         wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
5428
5429         return brcmf_setup_wiphybands(wiphy);
5430 }
5431
5432 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
5433 {
5434         struct net_device *ndev;
5435         struct wireless_dev *wdev;
5436         struct brcmf_if *ifp;
5437         s32 power_mode;
5438         s32 err = 0;
5439
5440         if (cfg->dongle_up)
5441                 return err;
5442
5443         ndev = cfg_to_ndev(cfg);
5444         wdev = ndev->ieee80211_ptr;
5445         ifp = netdev_priv(ndev);
5446
5447         /* make sure RF is ready for work */
5448         brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
5449
5450         brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME,
5451                               WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
5452
5453         power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
5454         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
5455         if (err)
5456                 goto default_conf_out;
5457         brcmf_dbg(INFO, "power save set to %s\n",
5458                   (power_mode ? "enabled" : "disabled"));
5459
5460         err = brcmf_dongle_roam(ifp, WL_BEACON_TIMEOUT);
5461         if (err)
5462                 goto default_conf_out;
5463         err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
5464                                           NULL, NULL);
5465         if (err)
5466                 goto default_conf_out;
5467
5468         brcmf_configure_arp_offload(ifp, true);
5469
5470         cfg->dongle_up = true;
5471 default_conf_out:
5472
5473         return err;
5474
5475 }
5476
5477 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
5478 {
5479         set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5480
5481         return brcmf_config_dongle(ifp->drvr->config);
5482 }
5483
5484 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
5485 {
5486         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5487
5488         /*
5489          * While going down, if associated with AP disassociate
5490          * from AP to save power
5491          */
5492         if (check_vif_up(ifp->vif)) {
5493                 brcmf_link_down(ifp->vif);
5494
5495                 /* Make sure WPA_Supplicant receives all the event
5496                    generated due to DISASSOC call to the fw to keep
5497                    the state fw and WPA_Supplicant state consistent
5498                  */
5499                 brcmf_delay(500);
5500         }
5501
5502         brcmf_abort_scanning(cfg);
5503         clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5504
5505         return 0;
5506 }
5507
5508 s32 brcmf_cfg80211_up(struct net_device *ndev)
5509 {
5510         struct brcmf_if *ifp = netdev_priv(ndev);
5511         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5512         s32 err = 0;
5513
5514         mutex_lock(&cfg->usr_sync);
5515         err = __brcmf_cfg80211_up(ifp);
5516         mutex_unlock(&cfg->usr_sync);
5517
5518         return err;
5519 }
5520
5521 s32 brcmf_cfg80211_down(struct net_device *ndev)
5522 {
5523         struct brcmf_if *ifp = netdev_priv(ndev);
5524         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5525         s32 err = 0;
5526
5527         mutex_lock(&cfg->usr_sync);
5528         err = __brcmf_cfg80211_down(ifp);
5529         mutex_unlock(&cfg->usr_sync);
5530
5531         return err;
5532 }
5533
5534 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
5535 {
5536         struct wireless_dev *wdev = &ifp->vif->wdev;
5537
5538         return wdev->iftype;
5539 }
5540
5541 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg, unsigned long state)
5542 {
5543         struct brcmf_cfg80211_vif *vif;
5544
5545         list_for_each_entry(vif, &cfg->vif_list, list) {
5546                 if (test_bit(state, &vif->sme_state))
5547                         return true;
5548         }
5549         return false;
5550 }
5551
5552 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
5553                                     u8 action)
5554 {
5555         u8 evt_action;
5556
5557         mutex_lock(&event->vif_event_lock);
5558         evt_action = event->action;
5559         mutex_unlock(&event->vif_event_lock);
5560         return evt_action == action;
5561 }
5562
5563 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
5564                                   struct brcmf_cfg80211_vif *vif)
5565 {
5566         struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5567
5568         mutex_lock(&event->vif_event_lock);
5569         event->vif = vif;
5570         event->action = 0;
5571         mutex_unlock(&event->vif_event_lock);
5572 }
5573
5574 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
5575 {
5576         struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5577         bool armed;
5578
5579         mutex_lock(&event->vif_event_lock);
5580         armed = event->vif != NULL;
5581         mutex_unlock(&event->vif_event_lock);
5582
5583         return armed;
5584 }
5585 int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
5586                                           u8 action, ulong timeout)
5587 {
5588         struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5589
5590         return wait_event_timeout(event->vif_wq,
5591                                   vif_event_equals(event, action), timeout);
5592 }
5593
5594 static void brcmf_free_wiphy(struct wiphy *wiphy)
5595 {
5596         kfree(wiphy->iface_combinations);
5597         if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
5598                 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5599                 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5600         }
5601         if (wiphy->bands[IEEE80211_BAND_5GHZ]) {
5602                 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]->channels);
5603                 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]);
5604         }
5605         wiphy_free(wiphy);
5606 }
5607
5608 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
5609                                                   struct device *busdev)
5610 {
5611         struct net_device *ndev = drvr->iflist[0]->ndev;
5612         struct brcmf_cfg80211_info *cfg;
5613         struct wiphy *wiphy;
5614         struct brcmf_cfg80211_vif *vif;
5615         struct brcmf_if *ifp;
5616         s32 err = 0;
5617         s32 io_type;
5618         u16 *cap = NULL;
5619
5620         if (!ndev) {
5621                 brcmf_err("ndev is invalid\n");
5622                 return NULL;
5623         }
5624
5625         ifp = netdev_priv(ndev);
5626         wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
5627         if (!wiphy) {
5628                 brcmf_err("Could not allocate wiphy device\n");
5629                 return NULL;
5630         }
5631         set_wiphy_dev(wiphy, busdev);
5632
5633         cfg = wiphy_priv(wiphy);
5634         cfg->wiphy = wiphy;
5635         cfg->pub = drvr;
5636         init_vif_event(&cfg->vif_event);
5637         INIT_LIST_HEAD(&cfg->vif_list);
5638
5639         vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false);
5640         if (IS_ERR(vif))
5641                 goto wiphy_out;
5642
5643         vif->ifp = ifp;
5644         vif->wdev.netdev = ndev;
5645         ndev->ieee80211_ptr = &vif->wdev;
5646         SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
5647
5648         err = wl_init_priv(cfg);
5649         if (err) {
5650                 brcmf_err("Failed to init iwm_priv (%d)\n", err);
5651                 brcmf_free_vif(vif);
5652                 goto wiphy_out;
5653         }
5654         ifp->vif = vif;
5655
5656         /* determine d11 io type before wiphy setup */
5657         err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type);
5658         if (err) {
5659                 brcmf_err("Failed to get D11 version (%d)\n", err);
5660                 goto priv_out;
5661         }
5662         cfg->d11inf.io_type = (u8)io_type;
5663         brcmu_d11_attach(&cfg->d11inf);
5664
5665         err = brcmf_setup_wiphy(wiphy, ifp);
5666         if (err < 0)
5667                 goto priv_out;
5668
5669         brcmf_dbg(INFO, "Registering custom regulatory\n");
5670         wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
5671         wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
5672
5673         /* firmware defaults to 40MHz disabled in 2G band. We signal
5674          * cfg80211 here that we do and have it decide we can enable
5675          * it. But first check if device does support 2G operation.
5676          */
5677         if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
5678                 cap = &wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap.cap;
5679                 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5680         }
5681         err = wiphy_register(wiphy);
5682         if (err < 0) {
5683                 brcmf_err("Could not register wiphy device (%d)\n", err);
5684                 goto priv_out;
5685         }
5686
5687         /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(),
5688          * setup 40MHz in 2GHz band and enable OBSS scanning.
5689          */
5690         if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) {
5691                 err = brcmf_enable_bw40_2g(cfg);
5692                 if (!err)
5693                         err = brcmf_fil_iovar_int_set(ifp, "obss_coex",
5694                                                       BRCMF_OBSS_COEX_AUTO);
5695                 else
5696                         *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5697         }
5698
5699         err = brcmf_p2p_attach(cfg);
5700         if (err) {
5701                 brcmf_err("P2P initilisation failed (%d)\n", err);
5702                 goto wiphy_unreg_out;
5703         }
5704         err = brcmf_btcoex_attach(cfg);
5705         if (err) {
5706                 brcmf_err("BT-coex initialisation failed (%d)\n", err);
5707                 brcmf_p2p_detach(&cfg->p2p);
5708                 goto wiphy_unreg_out;
5709         }
5710
5711         err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
5712         if (err) {
5713                 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err);
5714                 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS;
5715         } else {
5716                 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT,
5717                                     brcmf_notify_tdls_peer_event);
5718         }
5719
5720         return cfg;
5721
5722 wiphy_unreg_out:
5723         wiphy_unregister(cfg->wiphy);
5724 priv_out:
5725         wl_deinit_priv(cfg);
5726         brcmf_free_vif(vif);
5727 wiphy_out:
5728         brcmf_free_wiphy(wiphy);
5729         return NULL;
5730 }
5731
5732 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
5733 {
5734         if (!cfg)
5735                 return;
5736
5737         WARN_ON(!list_empty(&cfg->vif_list));
5738         wiphy_unregister(cfg->wiphy);
5739         brcmf_btcoex_detach(cfg);
5740         brcmf_p2p_detach(&cfg->p2p);
5741         wl_deinit_priv(cfg);
5742         brcmf_free_wiphy(cfg->wiphy);
5743 }