drivers/net/wireless/brcm80211/brcmfmac/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 "core.h"
  30 #include "debug.h"
  31 #include "tracepoint.h"
  32 #include "fwil_types.h"
  33 #include "p2p.h"
  34 #include "btcoex.h"
  35 #include "cfg80211.h"
  36 #include "feature.h"
  37 #include "fwil.h"
  38 #include "proto.h"
  39 #include "vendor.h"
  40 #include "bus.h"
  41
  42 #define BRCMF_SCAN_IE_LEN_MAX           2048
  43 #define BRCMF_PNO_VERSION               2
  44 #define BRCMF_PNO_TIME                  30
  45 #define BRCMF_PNO_REPEAT                4
  46 #define BRCMF_PNO_FREQ_EXPO_MAX         3
  47 #define BRCMF_PNO_MAX_PFN_COUNT         16
  48 #define BRCMF_PNO_ENABLE_ADAPTSCAN_BIT  6
  49 #define BRCMF_PNO_HIDDEN_BIT            2
  50 #define BRCMF_PNO_WPA_AUTH_ANY          0xFFFFFFFF
  51 #define BRCMF_PNO_SCAN_COMPLETE         1
  52 #define BRCMF_PNO_SCAN_INCOMPLETE       0
  53
  54 #define BRCMF_IFACE_MAX_CNT             3
  55
  56 #define WPA_OUI                         "\x00\x50\xF2"  /* WPA OUI */
  57 #define WPA_OUI_TYPE                    1
  58 #define RSN_OUI                         "\x00\x0F\xAC"  /* RSN OUI */
  59 #define WME_OUI_TYPE                    2
  60 #define WPS_OUI_TYPE                    4
  61
  62 #define VS_IE_FIXED_HDR_LEN             6
  63 #define WPA_IE_VERSION_LEN              2
  64 #define WPA_IE_MIN_OUI_LEN              4
  65 #define WPA_IE_SUITE_COUNT_LEN          2
  66
  67 #define WPA_CIPHER_NONE                 0       /* None */
  68 #define WPA_CIPHER_WEP_40               1       /* WEP (40-bit) */
  69 #define WPA_CIPHER_TKIP                 2       /* TKIP: default for WPA */
  70 #define WPA_CIPHER_AES_CCM              4       /* AES (CCM) */
  71 #define WPA_CIPHER_WEP_104              5       /* WEP (104-bit) */
  72
  73 #define RSN_AKM_NONE                    0       /* None (IBSS) */
  74 #define RSN_AKM_UNSPECIFIED             1       /* Over 802.1x */
  75 #define RSN_AKM_PSK                     2       /* Pre-shared Key */
  76 #define RSN_CAP_LEN                     2       /* Length of RSN capabilities */
  77 #define RSN_CAP_PTK_REPLAY_CNTR_MASK    0x000C
  78
  79 #define VNDR_IE_CMD_LEN                 4       /* length of the set command
  80                                                  * string :"add", "del" (+ NUL)
  81                                                  */
  82 #define VNDR_IE_COUNT_OFFSET            4
  83 #define VNDR_IE_PKTFLAG_OFFSET          8
  84 #define VNDR_IE_VSIE_OFFSET             12
  85 #define VNDR_IE_HDR_SIZE                12
  86 #define VNDR_IE_PARSE_LIMIT             5
  87
  88 #define DOT11_MGMT_HDR_LEN              24      /* d11 management header len */
  89 #define DOT11_BCN_PRB_FIXED_LEN         12      /* beacon/probe fixed length */
  90
  91 #define BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS    320
  92 #define BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS   400
  93 #define BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS       20
  94
  95 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
  96         (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
  97
  98 static bool check_vif_up(struct brcmf_cfg80211_vif *vif)
  99 {
 100         if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) {
 101                 brcmf_dbg(INFO, "device is not ready : status (%lu)\n",
 102                           vif->sme_state);
 103                 return false;
 104         }
 105         return true;
 106 }
 107
 108 #define RATE_TO_BASE100KBPS(rate)   (((rate) * 10) / 2)
 109 #define RATETAB_ENT(_rateid, _flags) \
 110         {                                                               \
 111                 .bitrate        = RATE_TO_BASE100KBPS(_rateid),     \
 112                 .hw_value       = (_rateid),                            \
 113                 .flags          = (_flags),                             \
 114         }
 115
 116 static struct ieee80211_rate __wl_rates[] = {
 117         RATETAB_ENT(BRCM_RATE_1M, 0),
 118         RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
 119         RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
 120         RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
 121         RATETAB_ENT(BRCM_RATE_6M, 0),
 122         RATETAB_ENT(BRCM_RATE_9M, 0),
 123         RATETAB_ENT(BRCM_RATE_12M, 0),
 124         RATETAB_ENT(BRCM_RATE_18M, 0),
 125         RATETAB_ENT(BRCM_RATE_24M, 0),
 126         RATETAB_ENT(BRCM_RATE_36M, 0),
 127         RATETAB_ENT(BRCM_RATE_48M, 0),
 128         RATETAB_ENT(BRCM_RATE_54M, 0),
 129 };
 130
 131 #define wl_a_rates              (__wl_rates + 4)
 132 #define wl_a_rates_size 8
 133 #define wl_g_rates              (__wl_rates + 0)
 134 #define wl_g_rates_size 12
 135
 136 /* Band templates duplicated per wiphy. The channel info
 137  * is filled in after querying the device.
 138  */
 139 static const struct ieee80211_supported_band __wl_band_2ghz = {
 140         .band = IEEE80211_BAND_2GHZ,
 141         .bitrates = wl_g_rates,
 142         .n_bitrates = wl_g_rates_size,
 143 };
 144
 145 static const struct ieee80211_supported_band __wl_band_5ghz_a = {
 146         .band = IEEE80211_BAND_5GHZ,
 147         .bitrates = wl_a_rates,
 148         .n_bitrates = wl_a_rates_size,
 149 };
 150
 151 /* This is to override regulatory domains defined in cfg80211 module (reg.c)
 152  * By default world regulatory domain defined in reg.c puts the flags
 153  * NL80211_RRF_NO_IR for 5GHz channels (for * 36..48 and 149..165).
 154  * With respect to these flags, wpa_supplicant doesn't * start p2p
 155  * operations on 5GHz channels. All the changes in world regulatory
 156  * domain are to be done here.
 157  */
 158 static const struct ieee80211_regdomain brcmf_regdom = {
 159         .n_reg_rules = 4,
 160         .alpha2 =  "99",
 161         .reg_rules = {
 162                 /* IEEE 802.11b/g, channels 1..11 */
 163                 REG_RULE(2412-10, 2472+10, 40, 6, 20, 0),
 164                 /* If any */
 165                 /* IEEE 802.11 channel 14 - Only JP enables
 166                  * this and for 802.11b only
 167                  */
 168                 REG_RULE(2484-10, 2484+10, 20, 6, 20, 0),
 169                 /* IEEE 802.11a, channel 36..64 */
 170                 REG_RULE(5150-10, 5350+10, 80, 6, 20, 0),
 171                 /* IEEE 802.11a, channel 100..165 */
 172                 REG_RULE(5470-10, 5850+10, 80, 6, 20, 0), }
 173 };
 174
 175 static const u32 __wl_cipher_suites[] = {
 176         WLAN_CIPHER_SUITE_WEP40,
 177         WLAN_CIPHER_SUITE_WEP104,
 178         WLAN_CIPHER_SUITE_TKIP,
 179         WLAN_CIPHER_SUITE_CCMP,
 180         WLAN_CIPHER_SUITE_AES_CMAC,
 181 };
 182
 183 /* Vendor specific ie. id = 221, oui and type defines exact ie */
 184 struct brcmf_vs_tlv {
 185         u8 id;
 186         u8 len;
 187         u8 oui[3];
 188         u8 oui_type;
 189 };
 190
 191 struct parsed_vndr_ie_info {
 192         u8 *ie_ptr;
 193         u32 ie_len;     /* total length including id & length field */
 194         struct brcmf_vs_tlv vndrie;
 195 };
 196
 197 struct parsed_vndr_ies {
 198         u32 count;
 199         struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
 200 };
 201
 202 static int brcmf_roamoff;
 203 module_param_named(roamoff, brcmf_roamoff, int, S_IRUSR);
 204 MODULE_PARM_DESC(roamoff, "do not use internal roaming engine");
 205
 206 /* Quarter dBm units to mW
 207  * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
 208  * Table is offset so the last entry is largest mW value that fits in
 209  * a u16.
 210  */
 211
 212 #define QDBM_OFFSET 153         /* Offset for first entry */
 213 #define QDBM_TABLE_LEN 40       /* Table size */
 214
 215 /* Smallest mW value that will round up to the first table entry, QDBM_OFFSET.
 216  * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2
 217  */
 218 #define QDBM_TABLE_LOW_BOUND 6493       /* Low bound */
 219
 220 /* Largest mW value that will round down to the last table entry,
 221  * QDBM_OFFSET + QDBM_TABLE_LEN-1.
 222  * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) +
 223  * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2.
 224  */
 225 #define QDBM_TABLE_HIGH_BOUND 64938     /* High bound */
 226
 227 static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = {
 228 /* qdBm:        +0      +1      +2      +3      +4      +5      +6      +7 */
 229 /* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000,
 230 /* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849,
 231 /* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119,
 232 /* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811,
 233 /* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096
 234 };
 235
 236 static u16 brcmf_qdbm_to_mw(u8 qdbm)
 237 {
 238         uint factor = 1;
 239         int idx = qdbm - QDBM_OFFSET;
 240
 241         if (idx >= QDBM_TABLE_LEN)
 242                 /* clamp to max u16 mW value */
 243                 return 0xFFFF;
 244
 245         /* scale the qdBm index up to the range of the table 0-40
 246          * where an offset of 40 qdBm equals a factor of 10 mW.
 247          */
 248         while (idx < 0) {
 249                 idx += 40;
 250                 factor *= 10;
 251         }
 252
 253         /* return the mW value scaled down to the correct factor of 10,
 254          * adding in factor/2 to get proper rounding.
 255          */
 256         return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
 257 }
 258
 259 static u8 brcmf_mw_to_qdbm(u16 mw)
 260 {
 261         u8 qdbm;
 262         int offset;
 263         uint mw_uint = mw;
 264         uint boundary;
 265
 266         /* handle boundary case */
 267         if (mw_uint <= 1)
 268                 return 0;
 269
 270         offset = QDBM_OFFSET;
 271
 272         /* move mw into the range of the table */
 273         while (mw_uint < QDBM_TABLE_LOW_BOUND) {
 274                 mw_uint *= 10;
 275                 offset -= 40;
 276         }
 277
 278         for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) {
 279                 boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] -
 280                                                     nqdBm_to_mW_map[qdbm]) / 2;
 281                 if (mw_uint < boundary)
 282                         break;
 283         }
 284
 285         qdbm += (u8) offset;
 286
 287         return qdbm;
 288 }
 289
 290 static u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf,
 291                                struct cfg80211_chan_def *ch)
 292 {
 293         struct brcmu_chan ch_inf;
 294         s32 primary_offset;
 295
 296         brcmf_dbg(TRACE, "chandef: control %d center %d width %d\n",
 297                   ch->chan->center_freq, ch->center_freq1, ch->width);
 298         ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq1);
 299         primary_offset = ch->center_freq1 - ch->chan->center_freq;
 300         switch (ch->width) {
 301         case NL80211_CHAN_WIDTH_20:
 302                 ch_inf.bw = BRCMU_CHAN_BW_20;
 303                 WARN_ON(primary_offset != 0);
 304                 break;
 305         case NL80211_CHAN_WIDTH_40:
 306                 ch_inf.bw = BRCMU_CHAN_BW_40;
 307                 if (primary_offset < 0)
 308                         ch_inf.sb = BRCMU_CHAN_SB_U;
 309                 else
 310                         ch_inf.sb = BRCMU_CHAN_SB_L;
 311                 break;
 312         case NL80211_CHAN_WIDTH_80:
 313                 ch_inf.bw = BRCMU_CHAN_BW_80;
 314                 if (primary_offset < 0) {
 315                         if (primary_offset < -CH_10MHZ_APART)
 316                                 ch_inf.sb = BRCMU_CHAN_SB_UU;
 317                         else
 318                                 ch_inf.sb = BRCMU_CHAN_SB_UL;
 319                 } else {
 320                         if (primary_offset > CH_10MHZ_APART)
 321                                 ch_inf.sb = BRCMU_CHAN_SB_LL;
 322                         else
 323                                 ch_inf.sb = BRCMU_CHAN_SB_LU;
 324                 }
 325                 break;
 326         default:
 327                 WARN_ON_ONCE(1);
 328         }
 329         switch (ch->chan->band) {
 330         case IEEE80211_BAND_2GHZ:
 331                 ch_inf.band = BRCMU_CHAN_BAND_2G;
 332                 break;
 333         case IEEE80211_BAND_5GHZ:
 334                 ch_inf.band = BRCMU_CHAN_BAND_5G;
 335                 break;
 336         default:
 337                 WARN_ON_ONCE(1);
 338         }
 339         d11inf->encchspec(&ch_inf);
 340
 341         return ch_inf.chspec;
 342 }
 343
 344 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
 345                         struct ieee80211_channel *ch)
 346 {
 347         struct brcmu_chan ch_inf;
 348
 349         ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq);
 350         ch_inf.bw = BRCMU_CHAN_BW_20;
 351         d11inf->encchspec(&ch_inf);
 352
 353         return ch_inf.chspec;
 354 }
 355
 356 /* Traverse a string of 1-byte tag/1-byte length/variable-length value
 357  * triples, returning a pointer to the substring whose first element
 358  * matches tag
 359  */
 360 const struct brcmf_tlv *
 361 brcmf_parse_tlvs(const void *buf, int buflen, uint key)
 362 {
 363         const struct brcmf_tlv *elt = buf;
 364         int totlen = buflen;
 365
 366         /* find tagged parameter */
 367         while (totlen >= TLV_HDR_LEN) {
 368                 int len = elt->len;
 369
 370                 /* validate remaining totlen */
 371                 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
 372                         return elt;
 373
 374                 elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN));
 375                 totlen -= (len + TLV_HDR_LEN);
 376         }
 377
 378         return NULL;
 379 }
 380
 381 /* Is any of the tlvs the expected entry? If
 382  * not update the tlvs buffer pointer/length.
 383  */
 384 static bool
 385 brcmf_tlv_has_ie(const u8 *ie, const u8 **tlvs, u32 *tlvs_len,
 386                  const u8 *oui, u32 oui_len, u8 type)
 387 {
 388         /* If the contents match the OUI and the type */
 389         if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
 390             !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
 391             type == ie[TLV_BODY_OFF + oui_len]) {
 392                 return true;
 393         }
 394
 395         if (tlvs == NULL)
 396                 return false;
 397         /* point to the next ie */
 398         ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
 399         /* calculate the length of the rest of the buffer */
 400         *tlvs_len -= (int)(ie - *tlvs);
 401         /* update the pointer to the start of the buffer */
 402         *tlvs = ie;
 403
 404         return false;
 405 }
 406
 407 static struct brcmf_vs_tlv *
 408 brcmf_find_wpaie(const u8 *parse, u32 len)
 409 {
 410         const struct brcmf_tlv *ie;
 411
 412         while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
 413                 if (brcmf_tlv_has_ie((const u8 *)ie, &parse, &len,
 414                                      WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
 415                         return (struct brcmf_vs_tlv *)ie;
 416         }
 417         return NULL;
 418 }
 419
 420 static struct brcmf_vs_tlv *
 421 brcmf_find_wpsie(const u8 *parse, u32 len)
 422 {
 423         const struct brcmf_tlv *ie;
 424
 425         while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
 426                 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
 427                                      WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE))
 428                         return (struct brcmf_vs_tlv *)ie;
 429         }
 430         return NULL;
 431 }
 432
 433
 434 static void convert_key_from_CPU(struct brcmf_wsec_key *key,
 435                                  struct brcmf_wsec_key_le *key_le)
 436 {
 437         key_le->index = cpu_to_le32(key->index);
 438         key_le->len = cpu_to_le32(key->len);
 439         key_le->algo = cpu_to_le32(key->algo);
 440         key_le->flags = cpu_to_le32(key->flags);
 441         key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
 442         key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
 443         key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
 444         memcpy(key_le->data, key->data, sizeof(key->data));
 445         memcpy(key_le->ea, key->ea, sizeof(key->ea));
 446 }
 447
 448 static int
 449 send_key_to_dongle(struct net_device *ndev, struct brcmf_wsec_key *key)
 450 {
 451         int err;
 452         struct brcmf_wsec_key_le key_le;
 453
 454         convert_key_from_CPU(key, &key_le);
 455
 456         brcmf_netdev_wait_pend8021x(ndev);
 457
 458         err = brcmf_fil_bsscfg_data_set(netdev_priv(ndev), "wsec_key", &key_le,
 459                                         sizeof(key_le));
 460
 461         if (err)
 462                 brcmf_err("wsec_key error (%d)\n", err);
 463         return err;
 464 }
 465
 466 static s32
 467 brcmf_configure_arp_offload(struct brcmf_if *ifp, bool enable)
 468 {
 469         s32 err;
 470         u32 mode;
 471
 472         if (enable)
 473                 mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
 474         else
 475                 mode = 0;
 476
 477         /* Try to set and enable ARP offload feature, this may fail, then it  */
 478         /* is simply not supported and err 0 will be returned                 */
 479         err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
 480         if (err) {
 481                 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
 482                           mode, err);
 483                 err = 0;
 484         } else {
 485                 err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
 486                 if (err) {
 487                         brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
 488                                   enable, err);
 489                         err = 0;
 490                 } else
 491                         brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
 492                                   enable, mode);
 493         }
 494
 495         return err;
 496 }
 497
 498 static void
 499 brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev)
 500 {
 501         struct brcmf_cfg80211_vif *vif;
 502         struct brcmf_if *ifp;
 503
 504         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
 505         ifp = vif->ifp;
 506
 507         if ((wdev->iftype == NL80211_IFTYPE_ADHOC) ||
 508             (wdev->iftype == NL80211_IFTYPE_AP) ||
 509             (wdev->iftype == NL80211_IFTYPE_P2P_GO))
 510                 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
 511                                                 ADDR_DIRECT);
 512         else
 513                 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
 514                                                 ADDR_INDIRECT);
 515 }
 516
 517 static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif)
 518 {
 519         enum nl80211_iftype iftype;
 520
 521         iftype = vif->wdev.iftype;
 522         return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO;
 523 }
 524
 525 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
 526 {
 527         return vif->wdev.iftype == NL80211_IFTYPE_ADHOC;
 528 }
 529
 530 static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
 531                                                      const char *name,
 532                                                      enum nl80211_iftype type,
 533                                                      u32 *flags,
 534                                                      struct vif_params *params)
 535 {
 536         struct wireless_dev *wdev;
 537
 538         brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
 539         switch (type) {
 540         case NL80211_IFTYPE_ADHOC:
 541         case NL80211_IFTYPE_STATION:
 542         case NL80211_IFTYPE_AP:
 543         case NL80211_IFTYPE_AP_VLAN:
 544         case NL80211_IFTYPE_WDS:
 545         case NL80211_IFTYPE_MONITOR:
 546         case NL80211_IFTYPE_MESH_POINT:
 547                 return ERR_PTR(-EOPNOTSUPP);
 548         case NL80211_IFTYPE_P2P_CLIENT:
 549         case NL80211_IFTYPE_P2P_GO:
 550         case NL80211_IFTYPE_P2P_DEVICE:
 551                 wdev = brcmf_p2p_add_vif(wiphy, name, type, flags, params);
 552                 if (!IS_ERR(wdev))
 553                         brcmf_cfg80211_update_proto_addr_mode(wdev);
 554                 return wdev;
 555         case NL80211_IFTYPE_UNSPECIFIED:
 556         default:
 557                 return ERR_PTR(-EINVAL);
 558         }
 559 }
 560
 561 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
 562 {
 563         if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC))
 564                 brcmf_set_mpc(ifp, mpc);
 565 }
 566
 567 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
 568 {
 569         s32 err = 0;
 570
 571         if (check_vif_up(ifp->vif)) {
 572                 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
 573                 if (err) {
 574                         brcmf_err("fail to set mpc\n");
 575                         return;
 576                 }
 577                 brcmf_dbg(INFO, "MPC : %d\n", mpc);
 578         }
 579 }
 580
 581 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
 582                                 struct brcmf_if *ifp, bool aborted,
 583                                 bool fw_abort)
 584 {
 585         struct brcmf_scan_params_le params_le;
 586         struct cfg80211_scan_request *scan_request;
 587         s32 err = 0;
 588
 589         brcmf_dbg(SCAN, "Enter\n");
 590
 591         /* clear scan request, because the FW abort can cause a second call */
 592         /* to this functon and might cause a double cfg80211_scan_done      */
 593         scan_request = cfg->scan_request;
 594         cfg->scan_request = NULL;
 595
 596         if (timer_pending(&cfg->escan_timeout))
 597                 del_timer_sync(&cfg->escan_timeout);
 598
 599         if (fw_abort) {
 600                 /* Do a scan abort to stop the driver's scan engine */
 601                 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
 602                 memset(&params_le, 0, sizeof(params_le));
 603                 memset(params_le.bssid, 0xFF, ETH_ALEN);
 604                 params_le.bss_type = DOT11_BSSTYPE_ANY;
 605                 params_le.scan_type = 0;
 606                 params_le.channel_num = cpu_to_le32(1);
 607                 params_le.nprobes = cpu_to_le32(1);
 608                 params_le.active_time = cpu_to_le32(-1);
 609                 params_le.passive_time = cpu_to_le32(-1);
 610                 params_le.home_time = cpu_to_le32(-1);
 611                 /* Scan is aborted by setting channel_list[0] to -1 */
 612                 params_le.channel_list[0] = cpu_to_le16(-1);
 613                 /* E-Scan (or anyother type) can be aborted by SCAN */
 614                 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
 615                                              &params_le, sizeof(params_le));
 616                 if (err)
 617                         brcmf_err("Scan abort  failed\n");
 618         }
 619
 620         brcmf_scan_config_mpc(ifp, 1);
 621
 622         /*
 623          * e-scan can be initiated by scheduled scan
 624          * which takes precedence.
 625          */
 626         if (cfg->sched_escan) {
 627                 brcmf_dbg(SCAN, "scheduled scan completed\n");
 628                 cfg->sched_escan = false;
 629                 if (!aborted)
 630                         cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
 631         } else if (scan_request) {
 632                 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
 633                           aborted ? "Aborted" : "Done");
 634                 cfg80211_scan_done(scan_request, aborted);
 635         }
 636         if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
 637                 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
 638
 639         return err;
 640 }
 641
 642 static
 643 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
 644 {
 645         struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
 646         struct net_device *ndev = wdev->netdev;
 647
 648         /* vif event pending in firmware */
 649         if (brcmf_cfg80211_vif_event_armed(cfg))
 650                 return -EBUSY;
 651
 652         if (ndev) {
 653                 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
 654                     cfg->escan_info.ifp == netdev_priv(ndev))
 655                         brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
 656                                                     true, true);
 657
 658                 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
 659         }
 660
 661         switch (wdev->iftype) {
 662         case NL80211_IFTYPE_ADHOC:
 663         case NL80211_IFTYPE_STATION:
 664         case NL80211_IFTYPE_AP:
 665         case NL80211_IFTYPE_AP_VLAN:
 666         case NL80211_IFTYPE_WDS:
 667         case NL80211_IFTYPE_MONITOR:
 668         case NL80211_IFTYPE_MESH_POINT:
 669                 return -EOPNOTSUPP;
 670         case NL80211_IFTYPE_P2P_CLIENT:
 671         case NL80211_IFTYPE_P2P_GO:
 672         case NL80211_IFTYPE_P2P_DEVICE:
 673                 return brcmf_p2p_del_vif(wiphy, wdev);
 674         case NL80211_IFTYPE_UNSPECIFIED:
 675         default:
 676                 return -EINVAL;
 677         }
 678         return -EOPNOTSUPP;
 679 }
 680
 681 static s32
 682 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
 683                          enum nl80211_iftype type, u32 *flags,
 684                          struct vif_params *params)
 685 {
 686         struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
 687         struct brcmf_if *ifp = netdev_priv(ndev);
 688         struct brcmf_cfg80211_vif *vif = ifp->vif;
 689         s32 infra = 0;
 690         s32 ap = 0;
 691         s32 err = 0;
 692
 693         brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type);
 694
 695         switch (type) {
 696         case NL80211_IFTYPE_MONITOR:
 697         case NL80211_IFTYPE_WDS:
 698                 brcmf_err("type (%d) : currently we do not support this type\n",
 699                           type);
 700                 return -EOPNOTSUPP;
 701         case NL80211_IFTYPE_ADHOC:
 702                 infra = 0;
 703                 break;
 704         case NL80211_IFTYPE_STATION:
 705                 /* Ignore change for p2p IF. Unclear why supplicant does this */
 706                 if ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
 707                     (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO)) {
 708                         brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
 709                         /* WAR: It is unexpected to get a change of VIF for P2P
 710                          * IF, but it happens. The request can not be handled
 711                          * but returning EPERM causes a crash. Returning 0
 712                          * without setting ieee80211_ptr->iftype causes trace
 713                          * (WARN_ON) but it works with wpa_supplicant
 714                          */
 715                         return 0;
 716                 }
 717                 infra = 1;
 718                 break;
 719         case NL80211_IFTYPE_AP:
 720         case NL80211_IFTYPE_P2P_GO:
 721                 ap = 1;
 722                 break;
 723         default:
 724                 err = -EINVAL;
 725                 goto done;
 726         }
 727
 728         if (ap) {
 729                 if (type == NL80211_IFTYPE_P2P_GO) {
 730                         brcmf_dbg(INFO, "IF Type = P2P GO\n");
 731                         err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
 732                 }
 733                 if (!err) {
 734                         set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
 735                         brcmf_dbg(INFO, "IF Type = AP\n");
 736                 }
 737         } else {
 738                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
 739                 if (err) {
 740                         brcmf_err("WLC_SET_INFRA error (%d)\n", err);
 741                         err = -EAGAIN;
 742                         goto done;
 743                 }
 744                 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ?
 745                           "Adhoc" : "Infra");
 746         }
 747         ndev->ieee80211_ptr->iftype = type;
 748
 749         brcmf_cfg80211_update_proto_addr_mode(&vif->wdev);
 750
 751 done:
 752         brcmf_dbg(TRACE, "Exit\n");
 753
 754         return err;
 755 }
 756
 757 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
 758                              struct brcmf_scan_params_le *params_le,
 759                              struct cfg80211_scan_request *request)
 760 {
 761         u32 n_ssids;
 762         u32 n_channels;
 763         s32 i;
 764         s32 offset;
 765         u16 chanspec;
 766         char *ptr;
 767         struct brcmf_ssid_le ssid_le;
 768
 769         memset(params_le->bssid, 0xFF, ETH_ALEN);
 770         params_le->bss_type = DOT11_BSSTYPE_ANY;
 771         params_le->scan_type = 0;
 772         params_le->channel_num = 0;
 773         params_le->nprobes = cpu_to_le32(-1);
 774         params_le->active_time = cpu_to_le32(-1);
 775         params_le->passive_time = cpu_to_le32(-1);
 776         params_le->home_time = cpu_to_le32(-1);
 777         memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
 778
 779         /* if request is null exit so it will be all channel broadcast scan */
 780         if (!request)
 781                 return;
 782
 783         n_ssids = request->n_ssids;
 784         n_channels = request->n_channels;
 785         /* Copy channel array if applicable */
 786         brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
 787                   n_channels);
 788         if (n_channels > 0) {
 789                 for (i = 0; i < n_channels; i++) {
 790                         chanspec = channel_to_chanspec(&cfg->d11inf,
 791                                                        request->channels[i]);
 792                         brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
 793                                   request->channels[i]->hw_value, chanspec);
 794                         params_le->channel_list[i] = cpu_to_le16(chanspec);
 795                 }
 796         } else {
 797                 brcmf_dbg(SCAN, "Scanning all channels\n");
 798         }
 799         /* Copy ssid array if applicable */
 800         brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
 801         if (n_ssids > 0) {
 802                 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
 803                                 n_channels * sizeof(u16);
 804                 offset = roundup(offset, sizeof(u32));
 805                 ptr = (char *)params_le + offset;
 806                 for (i = 0; i < n_ssids; i++) {
 807                         memset(&ssid_le, 0, sizeof(ssid_le));
 808                         ssid_le.SSID_len =
 809                                         cpu_to_le32(request->ssids[i].ssid_len);
 810                         memcpy(ssid_le.SSID, request->ssids[i].ssid,
 811                                request->ssids[i].ssid_len);
 812                         if (!ssid_le.SSID_len)
 813                                 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
 814                         else
 815                                 brcmf_dbg(SCAN, "%d: scan for  %s size =%d\n",
 816                                           i, ssid_le.SSID, ssid_le.SSID_len);
 817                         memcpy(ptr, &ssid_le, sizeof(ssid_le));
 818                         ptr += sizeof(ssid_le);
 819                 }
 820         } else {
 821                 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
 822                 if ((request->ssids) && request->ssids->ssid_len) {
 823                         brcmf_dbg(SCAN, "SSID %s len=%d\n",
 824                                   params_le->ssid_le.SSID,
 825                                   request->ssids->ssid_len);
 826                         params_le->ssid_le.SSID_len =
 827                                 cpu_to_le32(request->ssids->ssid_len);
 828                         memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
 829                                 request->ssids->ssid_len);
 830                 }
 831         }
 832         /* Adding mask to channel numbers */
 833         params_le->channel_num =
 834                 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
 835                         (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
 836 }
 837
 838 static s32
 839 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
 840                 struct cfg80211_scan_request *request, u16 action)
 841 {
 842         s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
 843                           offsetof(struct brcmf_escan_params_le, params_le);
 844         struct brcmf_escan_params_le *params;
 845         s32 err = 0;
 846
 847         brcmf_dbg(SCAN, "E-SCAN START\n");
 848
 849         if (request != NULL) {
 850                 /* Allocate space for populating ssids in struct */
 851                 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
 852
 853                 /* Allocate space for populating ssids in struct */
 854                 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
 855         }
 856
 857         params = kzalloc(params_size, GFP_KERNEL);
 858         if (!params) {
 859                 err = -ENOMEM;
 860                 goto exit;
 861         }
 862         BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
 863         brcmf_escan_prep(cfg, &params->params_le, request);
 864         params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
 865         params->action = cpu_to_le16(action);
 866         params->sync_id = cpu_to_le16(0x1234);
 867
 868         err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
 869         if (err) {
 870                 if (err == -EBUSY)
 871                         brcmf_dbg(INFO, "system busy : escan canceled\n");
 872                 else
 873                         brcmf_err("error (%d)\n", err);
 874         }
 875
 876         kfree(params);
 877 exit:
 878         return err;
 879 }
 880
 881 static s32
 882 brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
 883                struct brcmf_if *ifp, struct cfg80211_scan_request *request)
 884 {
 885         s32 err;
 886         u32 passive_scan;
 887         struct brcmf_scan_results *results;
 888         struct escan_info *escan = &cfg->escan_info;
 889
 890         brcmf_dbg(SCAN, "Enter\n");
 891         escan->ifp = ifp;
 892         escan->wiphy = wiphy;
 893         escan->escan_state = WL_ESCAN_STATE_SCANNING;
 894         passive_scan = cfg->active_scan ? 0 : 1;
 895         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
 896                                     passive_scan);
 897         if (err) {
 898                 brcmf_err("error (%d)\n", err);
 899                 return err;
 900         }
 901         brcmf_scan_config_mpc(ifp, 0);
 902         results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
 903         results->version = 0;
 904         results->count = 0;
 905         results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
 906
 907         err = escan->run(cfg, ifp, request, WL_ESCAN_ACTION_START);
 908         if (err)
 909                 brcmf_scan_config_mpc(ifp, 1);
 910         return err;
 911 }
 912
 913 static s32
 914 brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
 915                      struct cfg80211_scan_request *request,
 916                      struct cfg80211_ssid *this_ssid)
 917 {
 918         struct brcmf_if *ifp = vif->ifp;
 919         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 920         struct cfg80211_ssid *ssids;
 921         struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
 922         u32 passive_scan;
 923         bool escan_req;
 924         bool spec_scan;
 925         s32 err;
 926         u32 SSID_len;
 927
 928         brcmf_dbg(SCAN, "START ESCAN\n");
 929
 930         if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
 931                 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
 932                 return -EAGAIN;
 933         }
 934         if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
 935                 brcmf_err("Scanning being aborted: status (%lu)\n",
 936                           cfg->scan_status);
 937                 return -EAGAIN;
 938         }
 939         if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
 940                 brcmf_err("Scanning suppressed: status (%lu)\n",
 941                           cfg->scan_status);
 942                 return -EAGAIN;
 943         }
 944         if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
 945                 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
 946                 return -EAGAIN;
 947         }
 948
 949         /* If scan req comes for p2p0, send it over primary I/F */
 950         if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
 951                 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
 952
 953         /* Arm scan timeout timer */
 954         mod_timer(&cfg->escan_timeout, jiffies +
 955                         WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
 956
 957         escan_req = false;
 958         if (request) {
 959                 /* scan bss */
 960                 ssids = request->ssids;
 961                 escan_req = true;
 962         } else {
 963                 /* scan in ibss */
 964                 /* we don't do escan in ibss */
 965                 ssids = this_ssid;
 966         }
 967
 968         cfg->scan_request = request;
 969         set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
 970         if (escan_req) {
 971                 cfg->escan_info.run = brcmf_run_escan;
 972                 err = brcmf_p2p_scan_prep(wiphy, request, vif);
 973                 if (err)
 974                         goto scan_out;
 975
 976                 err = brcmf_do_escan(cfg, wiphy, vif->ifp, request);
 977                 if (err)
 978                         goto scan_out;
 979         } else {
 980                 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
 981                           ssids->ssid, ssids->ssid_len);
 982                 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
 983                 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
 984                 sr->ssid_le.SSID_len = cpu_to_le32(0);
 985                 spec_scan = false;
 986                 if (SSID_len) {
 987                         memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
 988                         sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
 989                         spec_scan = true;
 990                 } else
 991                         brcmf_dbg(SCAN, "Broadcast scan\n");
 992
 993                 passive_scan = cfg->active_scan ? 0 : 1;
 994                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
 995                                             passive_scan);
 996                 if (err) {
 997                         brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
 998                         goto scan_out;
 999                 }
1000                 brcmf_scan_config_mpc(ifp, 0);
1001                 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
1002                                              &sr->ssid_le, sizeof(sr->ssid_le));
1003                 if (err) {
1004                         if (err == -EBUSY)
1005                                 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
1006                                           sr->ssid_le.SSID);
1007                         else
1008                                 brcmf_err("WLC_SCAN error (%d)\n", err);
1009
1010                         brcmf_scan_config_mpc(ifp, 1);
1011                         goto scan_out;
1012                 }
1013         }
1014
1015         return 0;
1016
1017 scan_out:
1018         clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1019         if (timer_pending(&cfg->escan_timeout))
1020                 del_timer_sync(&cfg->escan_timeout);
1021         cfg->scan_request = NULL;
1022         return err;
1023 }
1024
1025 static s32
1026 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
1027 {
1028         struct brcmf_cfg80211_vif *vif;
1029         s32 err = 0;
1030
1031         brcmf_dbg(TRACE, "Enter\n");
1032         vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
1033         if (!check_vif_up(vif))
1034                 return -EIO;
1035
1036         err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);
1037
1038         if (err)
1039                 brcmf_err("scan error (%d)\n", err);
1040
1041         brcmf_dbg(TRACE, "Exit\n");
1042         return err;
1043 }
1044
1045 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1046 {
1047         s32 err = 0;
1048
1049         err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1050                                       rts_threshold);
1051         if (err)
1052                 brcmf_err("Error (%d)\n", err);
1053
1054         return err;
1055 }
1056
1057 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1058 {
1059         s32 err = 0;
1060
1061         err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1062                                       frag_threshold);
1063         if (err)
1064                 brcmf_err("Error (%d)\n", err);
1065
1066         return err;
1067 }
1068
1069 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1070 {
1071         s32 err = 0;
1072         u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1073
1074         err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1075         if (err) {
1076                 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1077                 return err;
1078         }
1079         return err;
1080 }
1081
1082 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1083 {
1084         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1085         struct net_device *ndev = cfg_to_ndev(cfg);
1086         struct brcmf_if *ifp = netdev_priv(ndev);
1087         s32 err = 0;
1088
1089         brcmf_dbg(TRACE, "Enter\n");
1090         if (!check_vif_up(ifp->vif))
1091                 return -EIO;
1092
1093         if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1094             (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1095                 cfg->conf->rts_threshold = wiphy->rts_threshold;
1096                 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1097                 if (!err)
1098                         goto done;
1099         }
1100         if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1101             (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1102                 cfg->conf->frag_threshold = wiphy->frag_threshold;
1103                 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1104                 if (!err)
1105                         goto done;
1106         }
1107         if (changed & WIPHY_PARAM_RETRY_LONG
1108             && (cfg->conf->retry_long != wiphy->retry_long)) {
1109                 cfg->conf->retry_long = wiphy->retry_long;
1110                 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1111                 if (!err)
1112                         goto done;
1113         }
1114         if (changed & WIPHY_PARAM_RETRY_SHORT
1115             && (cfg->conf->retry_short != wiphy->retry_short)) {
1116                 cfg->conf->retry_short = wiphy->retry_short;
1117                 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1118                 if (!err)
1119                         goto done;
1120         }
1121
1122 done:
1123         brcmf_dbg(TRACE, "Exit\n");
1124         return err;
1125 }
1126
1127 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1128 {
1129         memset(prof, 0, sizeof(*prof));
1130 }
1131
1132 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif)
1133 {
1134         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
1135         s32 err = 0;
1136
1137         brcmf_dbg(TRACE, "Enter\n");
1138
1139         if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1140                 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1141                 err = brcmf_fil_cmd_data_set(vif->ifp,
1142                                              BRCMF_C_DISASSOC, NULL, 0);
1143                 if (err) {
1144                         brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1145                 }
1146                 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
1147                 cfg80211_disconnected(vif->wdev.netdev, 0, NULL, 0, GFP_KERNEL);
1148
1149         }
1150         clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1151         clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
1152         brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
1153         brcmf_dbg(TRACE, "Exit\n");
1154 }
1155
1156 static s32
1157 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1158                       struct cfg80211_ibss_params *params)
1159 {
1160         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1161         struct brcmf_if *ifp = netdev_priv(ndev);
1162         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1163         struct brcmf_join_params join_params;
1164         size_t join_params_size = 0;
1165         s32 err = 0;
1166         s32 wsec = 0;
1167         s32 bcnprd;
1168         u16 chanspec;
1169
1170         brcmf_dbg(TRACE, "Enter\n");
1171         if (!check_vif_up(ifp->vif))
1172                 return -EIO;
1173
1174         if (params->ssid)
1175                 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1176         else {
1177                 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1178                 return -EOPNOTSUPP;
1179         }
1180
1181         set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1182
1183         if (params->bssid)
1184                 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1185         else
1186                 brcmf_dbg(CONN, "No BSSID specified\n");
1187
1188         if (params->chandef.chan)
1189                 brcmf_dbg(CONN, "channel: %d\n",
1190                           params->chandef.chan->center_freq);
1191         else
1192                 brcmf_dbg(CONN, "no channel specified\n");
1193
1194         if (params->channel_fixed)
1195                 brcmf_dbg(CONN, "fixed channel required\n");
1196         else
1197                 brcmf_dbg(CONN, "no fixed channel required\n");
1198
1199         if (params->ie && params->ie_len)
1200                 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1201         else
1202                 brcmf_dbg(CONN, "no ie specified\n");
1203
1204         if (params->beacon_interval)
1205                 brcmf_dbg(CONN, "beacon interval: %d\n",
1206                           params->beacon_interval);
1207         else
1208                 brcmf_dbg(CONN, "no beacon interval specified\n");
1209
1210         if (params->basic_rates)
1211                 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1212         else
1213                 brcmf_dbg(CONN, "no basic rates specified\n");
1214
1215         if (params->privacy)
1216                 brcmf_dbg(CONN, "privacy required\n");
1217         else
1218                 brcmf_dbg(CONN, "no privacy required\n");
1219
1220         /* Configure Privacy for starter */
1221         if (params->privacy)
1222                 wsec |= WEP_ENABLED;
1223
1224         err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1225         if (err) {
1226                 brcmf_err("wsec failed (%d)\n", err);
1227                 goto done;
1228         }
1229
1230         /* Configure Beacon Interval for starter */
1231         if (params->beacon_interval)
1232                 bcnprd = params->beacon_interval;
1233         else
1234                 bcnprd = 100;
1235
1236         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1237         if (err) {
1238                 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1239                 goto done;
1240         }
1241
1242         /* Configure required join parameter */
1243         memset(&join_params, 0, sizeof(struct brcmf_join_params));
1244
1245         /* SSID */
1246         profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1247         memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1248         memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1249         join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1250         join_params_size = sizeof(join_params.ssid_le);
1251
1252         /* BSSID */
1253         if (params->bssid) {
1254                 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1255                 join_params_size = sizeof(join_params.ssid_le) +
1256                                    BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1257                 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1258         } else {
1259                 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1260                 memset(profile->bssid, 0, ETH_ALEN);
1261         }
1262
1263         /* Channel */
1264         if (params->chandef.chan) {
1265                 u32 target_channel;
1266
1267                 cfg->channel =
1268                         ieee80211_frequency_to_channel(
1269                                 params->chandef.chan->center_freq);
1270                 if (params->channel_fixed) {
1271                         /* adding chanspec */
1272                         chanspec = chandef_to_chanspec(&cfg->d11inf,
1273                                                        &params->chandef);
1274                         join_params.params_le.chanspec_list[0] =
1275                                 cpu_to_le16(chanspec);
1276                         join_params.params_le.chanspec_num = cpu_to_le32(1);
1277                         join_params_size += sizeof(join_params.params_le);
1278                 }
1279
1280                 /* set channel for starter */
1281                 target_channel = cfg->channel;
1282                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1283                                             target_channel);
1284                 if (err) {
1285                         brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1286                         goto done;
1287                 }
1288         } else
1289                 cfg->channel = 0;
1290
1291         cfg->ibss_starter = false;
1292
1293
1294         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1295                                      &join_params, join_params_size);
1296         if (err) {
1297                 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1298                 goto done;
1299         }
1300
1301 done:
1302         if (err)
1303                 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1304         brcmf_dbg(TRACE, "Exit\n");
1305         return err;
1306 }
1307
1308 static s32
1309 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1310 {
1311         struct brcmf_if *ifp = netdev_priv(ndev);
1312
1313         brcmf_dbg(TRACE, "Enter\n");
1314         if (!check_vif_up(ifp->vif))
1315                 return -EIO;
1316
1317         brcmf_link_down(ifp->vif);
1318
1319         brcmf_dbg(TRACE, "Exit\n");
1320
1321         return 0;
1322 }
1323
1324 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1325                                  struct cfg80211_connect_params *sme)
1326 {
1327         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1328         struct brcmf_cfg80211_security *sec;
1329         s32 val = 0;
1330         s32 err = 0;
1331
1332         if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1333                 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1334         else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1335                 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1336         else
1337                 val = WPA_AUTH_DISABLED;
1338         brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1339         err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1340         if (err) {
1341                 brcmf_err("set wpa_auth failed (%d)\n", err);
1342                 return err;
1343         }
1344         sec = &profile->sec;
1345         sec->wpa_versions = sme->crypto.wpa_versions;
1346         return err;
1347 }
1348
1349 static s32 brcmf_set_auth_type(struct net_device *ndev,
1350                                struct cfg80211_connect_params *sme)
1351 {
1352         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1353         struct brcmf_cfg80211_security *sec;
1354         s32 val = 0;
1355         s32 err = 0;
1356
1357         switch (sme->auth_type) {
1358         case NL80211_AUTHTYPE_OPEN_SYSTEM:
1359                 val = 0;
1360                 brcmf_dbg(CONN, "open system\n");
1361                 break;
1362         case NL80211_AUTHTYPE_SHARED_KEY:
1363                 val = 1;
1364                 brcmf_dbg(CONN, "shared key\n");
1365                 break;
1366         case NL80211_AUTHTYPE_AUTOMATIC:
1367                 val = 2;
1368                 brcmf_dbg(CONN, "automatic\n");
1369                 break;
1370         case NL80211_AUTHTYPE_NETWORK_EAP:
1371                 brcmf_dbg(CONN, "network eap\n");
1372         default:
1373                 val = 2;
1374                 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1375                 break;
1376         }
1377
1378         err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1379         if (err) {
1380                 brcmf_err("set auth failed (%d)\n", err);
1381                 return err;
1382         }
1383         sec = &profile->sec;
1384         sec->auth_type = sme->auth_type;
1385         return err;
1386 }
1387
1388 static s32
1389 brcmf_set_wsec_mode(struct net_device *ndev,
1390                      struct cfg80211_connect_params *sme, bool mfp)
1391 {
1392         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1393         struct brcmf_cfg80211_security *sec;
1394         s32 pval = 0;
1395         s32 gval = 0;
1396         s32 wsec;
1397         s32 err = 0;
1398
1399         if (sme->crypto.n_ciphers_pairwise) {
1400                 switch (sme->crypto.ciphers_pairwise[0]) {
1401                 case WLAN_CIPHER_SUITE_WEP40:
1402                 case WLAN_CIPHER_SUITE_WEP104:
1403                         pval = WEP_ENABLED;
1404                         break;
1405                 case WLAN_CIPHER_SUITE_TKIP:
1406                         pval = TKIP_ENABLED;
1407                         break;
1408                 case WLAN_CIPHER_SUITE_CCMP:
1409                         pval = AES_ENABLED;
1410                         break;
1411                 case WLAN_CIPHER_SUITE_AES_CMAC:
1412                         pval = AES_ENABLED;
1413                         break;
1414                 default:
1415                         brcmf_err("invalid cipher pairwise (%d)\n",
1416                                   sme->crypto.ciphers_pairwise[0]);
1417                         return -EINVAL;
1418                 }
1419         }
1420         if (sme->crypto.cipher_group) {
1421                 switch (sme->crypto.cipher_group) {
1422                 case WLAN_CIPHER_SUITE_WEP40:
1423                 case WLAN_CIPHER_SUITE_WEP104:
1424                         gval = WEP_ENABLED;
1425                         break;
1426                 case WLAN_CIPHER_SUITE_TKIP:
1427                         gval = TKIP_ENABLED;
1428                         break;
1429                 case WLAN_CIPHER_SUITE_CCMP:
1430                         gval = AES_ENABLED;
1431                         break;
1432                 case WLAN_CIPHER_SUITE_AES_CMAC:
1433                         gval = AES_ENABLED;
1434                         break;
1435                 default:
1436                         brcmf_err("invalid cipher group (%d)\n",
1437                                   sme->crypto.cipher_group);
1438                         return -EINVAL;
1439                 }
1440         }
1441
1442         brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1443         /* In case of privacy, but no security and WPS then simulate */
1444         /* setting AES. WPS-2.0 allows no security                   */
1445         if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1446             sme->privacy)
1447                 pval = AES_ENABLED;
1448
1449         if (mfp)
1450                 wsec = pval | gval | MFP_CAPABLE;
1451         else
1452                 wsec = pval | gval;
1453         err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec);
1454         if (err) {
1455                 brcmf_err("error (%d)\n", err);
1456                 return err;
1457         }
1458
1459         sec = &profile->sec;
1460         sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1461         sec->cipher_group = sme->crypto.cipher_group;
1462
1463         return err;
1464 }
1465
1466 static s32
1467 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1468 {
1469         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1470         struct brcmf_cfg80211_security *sec;
1471         s32 val = 0;
1472         s32 err = 0;
1473
1474         if (sme->crypto.n_akm_suites) {
1475                 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev),
1476                                                "wpa_auth", &val);
1477                 if (err) {
1478                         brcmf_err("could not get wpa_auth (%d)\n", err);
1479                         return err;
1480                 }
1481                 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1482                         switch (sme->crypto.akm_suites[0]) {
1483                         case WLAN_AKM_SUITE_8021X:
1484                                 val = WPA_AUTH_UNSPECIFIED;
1485                                 break;
1486                         case WLAN_AKM_SUITE_PSK:
1487                                 val = WPA_AUTH_PSK;
1488                                 break;
1489                         default:
1490                                 brcmf_err("invalid cipher group (%d)\n",
1491                                           sme->crypto.cipher_group);
1492                                 return -EINVAL;
1493                         }
1494                 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1495                         switch (sme->crypto.akm_suites[0]) {
1496                         case WLAN_AKM_SUITE_8021X:
1497                                 val = WPA2_AUTH_UNSPECIFIED;
1498                                 break;
1499                         case WLAN_AKM_SUITE_PSK:
1500                                 val = WPA2_AUTH_PSK;
1501                                 break;
1502                         default:
1503                                 brcmf_err("invalid cipher group (%d)\n",
1504                                           sme->crypto.cipher_group);
1505                                 return -EINVAL;
1506                         }
1507                 }
1508
1509                 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1510                 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev),
1511                                                "wpa_auth", val);
1512                 if (err) {
1513                         brcmf_err("could not set wpa_auth (%d)\n", err);
1514                         return err;
1515                 }
1516         }
1517         sec = &profile->sec;
1518         sec->wpa_auth = sme->crypto.akm_suites[0];
1519
1520         return err;
1521 }
1522
1523 static s32
1524 brcmf_set_sharedkey(struct net_device *ndev,
1525                     struct cfg80211_connect_params *sme)
1526 {
1527         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1528         struct brcmf_cfg80211_security *sec;
1529         struct brcmf_wsec_key key;
1530         s32 val;
1531         s32 err = 0;
1532
1533         brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1534
1535         if (sme->key_len == 0)
1536                 return 0;
1537
1538         sec = &profile->sec;
1539         brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1540                   sec->wpa_versions, sec->cipher_pairwise);
1541
1542         if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1543                 return 0;
1544
1545         if (!(sec->cipher_pairwise &
1546             (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1547                 return 0;
1548
1549         memset(&key, 0, sizeof(key));
1550         key.len = (u32) sme->key_len;
1551         key.index = (u32) sme->key_idx;
1552         if (key.len > sizeof(key.data)) {
1553                 brcmf_err("Too long key length (%u)\n", key.len);
1554                 return -EINVAL;
1555         }
1556         memcpy(key.data, sme->key, key.len);
1557         key.flags = BRCMF_PRIMARY_KEY;
1558         switch (sec->cipher_pairwise) {
1559         case WLAN_CIPHER_SUITE_WEP40:
1560                 key.algo = CRYPTO_ALGO_WEP1;
1561                 break;
1562         case WLAN_CIPHER_SUITE_WEP104:
1563                 key.algo = CRYPTO_ALGO_WEP128;
1564                 break;
1565         default:
1566                 brcmf_err("Invalid algorithm (%d)\n",
1567                           sme->crypto.ciphers_pairwise[0]);
1568                 return -EINVAL;
1569         }
1570         /* Set the new key/index */
1571         brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1572                   key.len, key.index, key.algo);
1573         brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1574         err = send_key_to_dongle(ndev, &key);
1575         if (err)
1576                 return err;
1577
1578         if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1579                 brcmf_dbg(CONN, "set auth_type to shared key\n");
1580                 val = WL_AUTH_SHARED_KEY;       /* shared key */
1581                 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1582                 if (err)
1583                         brcmf_err("set auth failed (%d)\n", err);
1584         }
1585         return err;
1586 }
1587
1588 static
1589 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1590                                            enum nl80211_auth_type type)
1591 {
1592         if (type == NL80211_AUTHTYPE_AUTOMATIC &&
1593             brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) {
1594                 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n");
1595                 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1596         }
1597         return type;
1598 }
1599
1600 static s32
1601 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1602                        struct cfg80211_connect_params *sme)
1603 {
1604         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1605         struct brcmf_if *ifp = netdev_priv(ndev);
1606         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1607         struct ieee80211_channel *chan = sme->channel;
1608         struct brcmf_join_params join_params;
1609         size_t join_params_size;
1610         const struct brcmf_tlv *rsn_ie;
1611         const struct brcmf_vs_tlv *wpa_ie;
1612         const void *ie;
1613         u32 ie_len;
1614         struct brcmf_ext_join_params_le *ext_join_params;
1615         u16 chanspec;
1616         s32 err = 0;
1617
1618         brcmf_dbg(TRACE, "Enter\n");
1619         if (!check_vif_up(ifp->vif))
1620                 return -EIO;
1621
1622         if (!sme->ssid) {
1623                 brcmf_err("Invalid ssid\n");
1624                 return -EOPNOTSUPP;
1625         }
1626
1627         if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1628                 /* A normal (non P2P) connection request setup. */
1629                 ie = NULL;
1630                 ie_len = 0;
1631                 /* find the WPA_IE */
1632                 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1633                 if (wpa_ie) {
1634                         ie = wpa_ie;
1635                         ie_len = wpa_ie->len + TLV_HDR_LEN;
1636                 } else {
1637                         /* find the RSN_IE */
1638                         rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie,
1639                                                   sme->ie_len,
1640                                                   WLAN_EID_RSN);
1641                         if (rsn_ie) {
1642                                 ie = rsn_ie;
1643                                 ie_len = rsn_ie->len + TLV_HDR_LEN;
1644                         }
1645                 }
1646                 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1647         }
1648
1649         err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1650                                     sme->ie, sme->ie_len);
1651         if (err)
1652                 brcmf_err("Set Assoc REQ IE Failed\n");
1653         else
1654                 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1655
1656         set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1657
1658         if (chan) {
1659                 cfg->channel =
1660                         ieee80211_frequency_to_channel(chan->center_freq);
1661                 chanspec = channel_to_chanspec(&cfg->d11inf, chan);
1662                 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1663                           cfg->channel, chan->center_freq, chanspec);
1664         } else {
1665                 cfg->channel = 0;
1666                 chanspec = 0;
1667         }
1668
1669         brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1670
1671         err = brcmf_set_wpa_version(ndev, sme);
1672         if (err) {
1673                 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1674                 goto done;
1675         }
1676
1677         sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1678         err = brcmf_set_auth_type(ndev, sme);
1679         if (err) {
1680                 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1681                 goto done;
1682         }
1683
1684         err = brcmf_set_wsec_mode(ndev, sme, sme->mfp == NL80211_MFP_REQUIRED);
1685         if (err) {
1686                 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1687                 goto done;
1688         }
1689
1690         err = brcmf_set_key_mgmt(ndev, sme);
1691         if (err) {
1692                 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1693                 goto done;
1694         }
1695
1696         err = brcmf_set_sharedkey(ndev, sme);
1697         if (err) {
1698                 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1699                 goto done;
1700         }
1701
1702         profile->ssid.SSID_len = min_t(u32, (u32)sizeof(profile->ssid.SSID),
1703                                        (u32)sme->ssid_len);
1704         memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1705         if (profile->ssid.SSID_len < IEEE80211_MAX_SSID_LEN) {
1706                 profile->ssid.SSID[profile->ssid.SSID_len] = 0;
1707                 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", profile->ssid.SSID,
1708                           profile->ssid.SSID_len);
1709         }
1710
1711         /* Join with specific BSSID and cached SSID
1712          * If SSID is zero join based on BSSID only
1713          */
1714         join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
1715                 offsetof(struct brcmf_assoc_params_le, chanspec_list);
1716         if (cfg->channel)
1717                 join_params_size += sizeof(u16);
1718         ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
1719         if (ext_join_params == NULL) {
1720                 err = -ENOMEM;
1721                 goto done;
1722         }
1723         ext_join_params->ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1724         memcpy(&ext_join_params->ssid_le.SSID, sme->ssid,
1725                profile->ssid.SSID_len);
1726
1727         /* Set up join scan parameters */
1728         ext_join_params->scan_le.scan_type = -1;
1729         ext_join_params->scan_le.home_time = cpu_to_le32(-1);
1730
1731         if (sme->bssid)
1732                 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
1733         else
1734                 memset(&ext_join_params->assoc_le.bssid, 0xFF, ETH_ALEN);
1735
1736         if (cfg->channel) {
1737                 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
1738
1739                 ext_join_params->assoc_le.chanspec_list[0] =
1740                         cpu_to_le16(chanspec);
1741                 /* Increase dwell time to receive probe response or detect
1742                  * beacon from target AP at a noisy air only during connect
1743                  * command.
1744                  */
1745                 ext_join_params->scan_le.active_time =
1746                         cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
1747                 ext_join_params->scan_le.passive_time =
1748                         cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
1749                 /* To sync with presence period of VSDB GO send probe request
1750                  * more frequently. Probe request will be stopped when it gets
1751                  * probe response from target AP/GO.
1752                  */
1753                 ext_join_params->scan_le.nprobes =
1754                         cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
1755                                     BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
1756         } else {
1757                 ext_join_params->scan_le.active_time = cpu_to_le32(-1);
1758                 ext_join_params->scan_le.passive_time = cpu_to_le32(-1);
1759                 ext_join_params->scan_le.nprobes = cpu_to_le32(-1);
1760         }
1761
1762         err  = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
1763                                          join_params_size);
1764         kfree(ext_join_params);
1765         if (!err)
1766                 /* This is it. join command worked, we are done */
1767                 goto done;
1768
1769         /* join command failed, fallback to set ssid */
1770         memset(&join_params, 0, sizeof(join_params));
1771         join_params_size = sizeof(join_params.ssid_le);
1772
1773         memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1774         join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1775
1776         if (sme->bssid)
1777                 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
1778         else
1779                 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1780
1781         if (cfg->channel) {
1782                 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1783                 join_params.params_le.chanspec_num = cpu_to_le32(1);
1784                 join_params_size += sizeof(join_params.params_le);
1785         }
1786         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1787                                      &join_params, join_params_size);
1788         if (err)
1789                 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
1790
1791 done:
1792         if (err)
1793                 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1794         brcmf_dbg(TRACE, "Exit\n");
1795         return err;
1796 }
1797
1798 static s32
1799 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1800                        u16 reason_code)
1801 {
1802         struct brcmf_if *ifp = netdev_priv(ndev);
1803         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1804         struct brcmf_scb_val_le scbval;
1805         s32 err = 0;
1806
1807         brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
1808         if (!check_vif_up(ifp->vif))
1809                 return -EIO;
1810
1811         clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1812         cfg80211_disconnected(ndev, reason_code, NULL, 0, GFP_KERNEL);
1813
1814         memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1815         scbval.val = cpu_to_le32(reason_code);
1816         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1817                                      &scbval, sizeof(scbval));
1818         if (err)
1819                 brcmf_err("error (%d)\n", err);
1820
1821         brcmf_dbg(TRACE, "Exit\n");
1822         return err;
1823 }
1824
1825 static s32
1826 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
1827                             enum nl80211_tx_power_setting type, s32 mbm)
1828 {
1829
1830         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1831         struct net_device *ndev = cfg_to_ndev(cfg);
1832         struct brcmf_if *ifp = netdev_priv(ndev);
1833         u16 txpwrmw;
1834         s32 err = 0;
1835         s32 disable = 0;
1836         s32 dbm = MBM_TO_DBM(mbm);
1837
1838         brcmf_dbg(TRACE, "Enter\n");
1839         if (!check_vif_up(ifp->vif))
1840                 return -EIO;
1841
1842         switch (type) {
1843         case NL80211_TX_POWER_AUTOMATIC:
1844                 break;
1845         case NL80211_TX_POWER_LIMITED:
1846         case NL80211_TX_POWER_FIXED:
1847                 if (dbm < 0) {
1848                         brcmf_err("TX_POWER_FIXED - dbm is negative\n");
1849                         err = -EINVAL;
1850                         goto done;
1851                 }
1852                 break;
1853         }
1854         /* Make sure radio is off or on as far as software is concerned */
1855         disable = WL_RADIO_SW_DISABLE << 16;
1856         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1857         if (err)
1858                 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
1859
1860         if (dbm > 0xffff)
1861                 txpwrmw = 0xffff;
1862         else
1863                 txpwrmw = (u16) dbm;
1864         err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1865                                       (s32)brcmf_mw_to_qdbm(txpwrmw));
1866         if (err)
1867                 brcmf_err("qtxpower error (%d)\n", err);
1868         cfg->conf->tx_power = dbm;
1869
1870 done:
1871         brcmf_dbg(TRACE, "Exit\n");
1872         return err;
1873 }
1874
1875 static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy,
1876                                        struct wireless_dev *wdev,
1877                                        s32 *dbm)
1878 {
1879         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1880         struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
1881         s32 txpwrdbm;
1882         u8 result;
1883         s32 err = 0;
1884
1885         brcmf_dbg(TRACE, "Enter\n");
1886         if (!check_vif_up(ifp->vif))
1887                 return -EIO;
1888
1889         err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
1890         if (err) {
1891                 brcmf_err("error (%d)\n", err);
1892                 goto done;
1893         }
1894
1895         result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
1896         *dbm = (s32) brcmf_qdbm_to_mw(result);
1897
1898 done:
1899         brcmf_dbg(TRACE, "Exit\n");
1900         return err;
1901 }
1902
1903 static s32
1904 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
1905                                u8 key_idx, bool unicast, bool multicast)
1906 {
1907         struct brcmf_if *ifp = netdev_priv(ndev);
1908         u32 index;
1909         u32 wsec;
1910         s32 err = 0;
1911
1912         brcmf_dbg(TRACE, "Enter\n");
1913         brcmf_dbg(CONN, "key index (%d)\n", key_idx);
1914         if (!check_vif_up(ifp->vif))
1915                 return -EIO;
1916
1917         err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
1918         if (err) {
1919                 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
1920                 goto done;
1921         }
1922
1923         if (wsec & WEP_ENABLED) {
1924                 /* Just select a new current key */
1925                 index = key_idx;
1926                 err = brcmf_fil_cmd_int_set(ifp,
1927                                             BRCMF_C_SET_KEY_PRIMARY, index);
1928                 if (err)
1929                         brcmf_err("error (%d)\n", err);
1930         }
1931 done:
1932         brcmf_dbg(TRACE, "Exit\n");
1933         return err;
1934 }
1935
1936 static s32
1937 brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
1938               u8 key_idx, const u8 *mac_addr, struct key_params *params)
1939 {
1940         struct brcmf_if *ifp = netdev_priv(ndev);
1941         struct brcmf_wsec_key key;
1942         s32 err = 0;
1943         u8 keybuf[8];
1944
1945         memset(&key, 0, sizeof(key));
1946         key.index = (u32) key_idx;
1947         /* Instead of bcast for ea address for default wep keys,
1948                  driver needs it to be Null */
1949         if (!is_multicast_ether_addr(mac_addr))
1950                 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
1951         key.len = (u32) params->key_len;
1952         /* check for key index change */
1953         if (key.len == 0) {
1954                 /* key delete */
1955                 err = send_key_to_dongle(ndev, &key);
1956                 if (err)
1957                         brcmf_err("key delete error (%d)\n", err);
1958         } else {
1959                 if (key.len > sizeof(key.data)) {
1960                         brcmf_err("Invalid key length (%d)\n", key.len);
1961                         return -EINVAL;
1962                 }
1963
1964                 brcmf_dbg(CONN, "Setting the key index %d\n", key.index);
1965                 memcpy(key.data, params->key, key.len);
1966
1967                 if (!brcmf_is_apmode(ifp->vif) &&
1968                     (params->cipher == WLAN_CIPHER_SUITE_TKIP)) {
1969                         brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
1970                         memcpy(keybuf, &key.data[24], sizeof(keybuf));
1971                         memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
1972                         memcpy(&key.data[16], keybuf, sizeof(keybuf));
1973                 }
1974
1975                 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
1976                 if (params->seq && params->seq_len == 6) {
1977                         /* rx iv */
1978                         u8 *ivptr;
1979                         ivptr = (u8 *) params->seq;
1980                         key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
1981                             (ivptr[3] << 8) | ivptr[2];
1982                         key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
1983                         key.iv_initialized = true;
1984                 }
1985
1986                 switch (params->cipher) {
1987                 case WLAN_CIPHER_SUITE_WEP40:
1988                         key.algo = CRYPTO_ALGO_WEP1;
1989                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
1990                         break;
1991                 case WLAN_CIPHER_SUITE_WEP104:
1992                         key.algo = CRYPTO_ALGO_WEP128;
1993                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
1994                         break;
1995                 case WLAN_CIPHER_SUITE_TKIP:
1996                         key.algo = CRYPTO_ALGO_TKIP;
1997                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
1998                         break;
1999                 case WLAN_CIPHER_SUITE_AES_CMAC:
2000                         key.algo = CRYPTO_ALGO_AES_CCM;
2001                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2002                         break;
2003                 case WLAN_CIPHER_SUITE_CCMP:
2004                         key.algo = CRYPTO_ALGO_AES_CCM;
2005                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2006                         break;
2007                 default:
2008                         brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2009                         return -EINVAL;
2010                 }
2011                 err = send_key_to_dongle(ndev, &key);
2012                 if (err)
2013                         brcmf_err("wsec_key error (%d)\n", err);
2014         }
2015         return err;
2016 }
2017
2018 static s32
2019 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
2020                     u8 key_idx, bool pairwise, const u8 *mac_addr,
2021                     struct key_params *params)
2022 {
2023         struct brcmf_if *ifp = netdev_priv(ndev);
2024         struct brcmf_wsec_key key;
2025         s32 val;
2026         s32 wsec;
2027         s32 err = 0;
2028         u8 keybuf[8];
2029
2030         brcmf_dbg(TRACE, "Enter\n");
2031         brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2032         if (!check_vif_up(ifp->vif))
2033                 return -EIO;
2034
2035         if (mac_addr &&
2036                 (params->cipher != WLAN_CIPHER_SUITE_WEP40) &&
2037                 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) {
2038                 brcmf_dbg(TRACE, "Exit");
2039                 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
2040         }
2041         memset(&key, 0, sizeof(key));
2042
2043         key.len = (u32) params->key_len;
2044         key.index = (u32) key_idx;
2045
2046         if (key.len > sizeof(key.data)) {
2047                 brcmf_err("Too long key length (%u)\n", key.len);
2048                 err = -EINVAL;
2049                 goto done;
2050         }
2051         memcpy(key.data, params->key, key.len);
2052
2053         key.flags = BRCMF_PRIMARY_KEY;
2054         switch (params->cipher) {
2055         case WLAN_CIPHER_SUITE_WEP40:
2056                 key.algo = CRYPTO_ALGO_WEP1;
2057                 val = WEP_ENABLED;
2058                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2059                 break;
2060         case WLAN_CIPHER_SUITE_WEP104:
2061                 key.algo = CRYPTO_ALGO_WEP128;
2062                 val = WEP_ENABLED;
2063                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2064                 break;
2065         case WLAN_CIPHER_SUITE_TKIP:
2066                 if (!brcmf_is_apmode(ifp->vif)) {
2067                         brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2068                         memcpy(keybuf, &key.data[24], sizeof(keybuf));
2069                         memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
2070                         memcpy(&key.data[16], keybuf, sizeof(keybuf));
2071                 }
2072                 key.algo = CRYPTO_ALGO_TKIP;
2073                 val = TKIP_ENABLED;
2074                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2075                 break;
2076         case WLAN_CIPHER_SUITE_AES_CMAC:
2077                 key.algo = CRYPTO_ALGO_AES_CCM;
2078                 val = AES_ENABLED;
2079                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2080                 break;
2081         case WLAN_CIPHER_SUITE_CCMP:
2082                 key.algo = CRYPTO_ALGO_AES_CCM;
2083                 val = AES_ENABLED;
2084                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2085                 break;
2086         default:
2087                 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2088                 err = -EINVAL;
2089                 goto done;
2090         }
2091
2092         err = send_key_to_dongle(ndev, &key);
2093         if (err)
2094                 goto done;
2095
2096         err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2097         if (err) {
2098                 brcmf_err("get wsec error (%d)\n", err);
2099                 goto done;
2100         }
2101         wsec |= val;
2102         err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2103         if (err) {
2104                 brcmf_err("set wsec error (%d)\n", err);
2105                 goto done;
2106         }
2107
2108 done:
2109         brcmf_dbg(TRACE, "Exit\n");
2110         return err;
2111 }
2112
2113 static s32
2114 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2115                     u8 key_idx, bool pairwise, const u8 *mac_addr)
2116 {
2117         struct brcmf_if *ifp = netdev_priv(ndev);
2118         struct brcmf_wsec_key key;
2119         s32 err = 0;
2120
2121         brcmf_dbg(TRACE, "Enter\n");
2122         if (!check_vif_up(ifp->vif))
2123                 return -EIO;
2124
2125         if (key_idx >= DOT11_MAX_DEFAULT_KEYS) {
2126                 /* we ignore this key index in this case */
2127                 brcmf_err("invalid key index (%d)\n", key_idx);
2128                 return -EINVAL;
2129         }
2130
2131         memset(&key, 0, sizeof(key));
2132
2133         key.index = (u32) key_idx;
2134         key.flags = BRCMF_PRIMARY_KEY;
2135         key.algo = CRYPTO_ALGO_OFF;
2136
2137         brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2138
2139         /* Set the new key/index */
2140         err = send_key_to_dongle(ndev, &key);
2141
2142         brcmf_dbg(TRACE, "Exit\n");
2143         return err;
2144 }
2145
2146 static s32
2147 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
2148                     u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
2149                     void (*callback) (void *cookie, struct key_params * params))
2150 {
2151         struct key_params params;
2152         struct brcmf_if *ifp = netdev_priv(ndev);
2153         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2154         struct brcmf_cfg80211_security *sec;
2155         s32 wsec;
2156         s32 err = 0;
2157
2158         brcmf_dbg(TRACE, "Enter\n");
2159         brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2160         if (!check_vif_up(ifp->vif))
2161                 return -EIO;
2162
2163         memset(&params, 0, sizeof(params));
2164
2165         err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2166         if (err) {
2167                 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2168                 /* Ignore this error, may happen during DISASSOC */
2169                 err = -EAGAIN;
2170                 goto done;
2171         }
2172         if (wsec & WEP_ENABLED) {
2173                 sec = &profile->sec;
2174                 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2175                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
2176                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2177                 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2178                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
2179                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2180                 }
2181         } else if (wsec & TKIP_ENABLED) {
2182                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2183                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2184         } else if (wsec & AES_ENABLED) {
2185                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2186                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2187         } else  {
2188                 brcmf_err("Invalid algo (0x%x)\n", wsec);
2189                 err = -EINVAL;
2190                 goto done;
2191         }
2192         callback(cookie, &params);
2193
2194 done:
2195         brcmf_dbg(TRACE, "Exit\n");
2196         return err;
2197 }
2198
2199 static s32
2200 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2201                                     struct net_device *ndev, u8 key_idx)
2202 {
2203         brcmf_dbg(INFO, "Not supported\n");
2204
2205         return -EOPNOTSUPP;
2206 }
2207
2208 static s32
2209 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2210                            const u8 *mac, struct station_info *sinfo)
2211 {
2212         struct brcmf_if *ifp = netdev_priv(ndev);
2213         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2214         struct brcmf_scb_val_le scb_val;
2215         int rssi;
2216         s32 rate;
2217         s32 err = 0;
2218         u8 *bssid = profile->bssid;
2219         struct brcmf_sta_info_le sta_info_le;
2220         u32 beacon_period;
2221         u32 dtim_period;
2222
2223         brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2224         if (!check_vif_up(ifp->vif))
2225                 return -EIO;
2226
2227         if (brcmf_is_apmode(ifp->vif)) {
2228                 memcpy(&sta_info_le, mac, ETH_ALEN);
2229                 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2230                                                &sta_info_le,
2231                                                sizeof(sta_info_le));
2232                 if (err < 0) {
2233                         brcmf_err("GET STA INFO failed, %d\n", err);
2234                         goto done;
2235                 }
2236                 sinfo->filled = STATION_INFO_INACTIVE_TIME;
2237                 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2238                 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2239                         sinfo->filled |= STATION_INFO_CONNECTED_TIME;
2240                         sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2241                 }
2242                 brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n",
2243                           sinfo->inactive_time, sinfo->connected_time);
2244         } else if (ifp->vif->wdev.iftype == NL80211_IFTYPE_STATION) {
2245                 if (memcmp(mac, bssid, ETH_ALEN)) {
2246                         brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2247                                   mac, bssid);
2248                         err = -ENOENT;
2249                         goto done;
2250                 }
2251                 /* Report the current tx rate */
2252                 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2253                 if (err) {
2254                         brcmf_err("Could not get rate (%d)\n", err);
2255                         goto done;
2256                 } else {
2257                         sinfo->filled |= STATION_INFO_TX_BITRATE;
2258                         sinfo->txrate.legacy = rate * 5;
2259                         brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2);
2260                 }
2261
2262                 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2263                              &ifp->vif->sme_state)) {
2264                         memset(&scb_val, 0, sizeof(scb_val));
2265                         err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2266                                                      &scb_val, sizeof(scb_val));
2267                         if (err) {
2268                                 brcmf_err("Could not get rssi (%d)\n", err);
2269                                 goto done;
2270                         } else {
2271                                 rssi = le32_to_cpu(scb_val.val);
2272                                 sinfo->filled |= STATION_INFO_SIGNAL;
2273                                 sinfo->signal = rssi;
2274                                 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2275                         }
2276                         err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_BCNPRD,
2277                                                     &beacon_period);
2278                         if (err) {
2279                                 brcmf_err("Could not get beacon period (%d)\n",
2280                                           err);
2281                                 goto done;
2282                         } else {
2283                                 sinfo->bss_param.beacon_interval =
2284                                         beacon_period;
2285                                 brcmf_dbg(CONN, "Beacon peroid %d\n",
2286                                           beacon_period);
2287                         }
2288                         err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_DTIMPRD,
2289                                                     &dtim_period);
2290                         if (err) {
2291                                 brcmf_err("Could not get DTIM period (%d)\n",
2292                                           err);
2293                                 goto done;
2294                         } else {
2295                                 sinfo->bss_param.dtim_period = dtim_period;
2296                                 brcmf_dbg(CONN, "DTIM peroid %d\n",
2297                                           dtim_period);
2298                         }
2299                         sinfo->filled |= STATION_INFO_BSS_PARAM;
2300                 }
2301         } else
2302                 err = -EPERM;
2303 done:
2304         brcmf_dbg(TRACE, "Exit\n");
2305         return err;
2306 }
2307
2308 static s32
2309 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2310                            bool enabled, s32 timeout)
2311 {
2312         s32 pm;
2313         s32 err = 0;
2314         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2315         struct brcmf_if *ifp = netdev_priv(ndev);
2316
2317         brcmf_dbg(TRACE, "Enter\n");
2318
2319         /*
2320          * Powersave enable/disable request is coming from the
2321          * cfg80211 even before the interface is up. In that
2322          * scenario, driver will be storing the power save
2323          * preference in cfg struct to apply this to
2324          * FW later while initializing the dongle
2325          */
2326         cfg->pwr_save = enabled;
2327         if (!check_vif_up(ifp->vif)) {
2328
2329                 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2330                 goto done;
2331         }
2332
2333         pm = enabled ? PM_FAST : PM_OFF;
2334         /* Do not enable the power save after assoc if it is a p2p interface */
2335         if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) {
2336                 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
2337                 pm = PM_OFF;
2338         }
2339         brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2340
2341         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2342         if (err) {
2343                 if (err == -ENODEV)
2344                         brcmf_err("net_device is not ready yet\n");
2345                 else
2346                         brcmf_err("error (%d)\n", err);
2347         }
2348 done:
2349         brcmf_dbg(TRACE, "Exit\n");
2350         return err;
2351 }
2352
2353 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2354                                    struct brcmf_bss_info_le *bi)
2355 {
2356         struct wiphy *wiphy = cfg_to_wiphy(cfg);
2357         struct ieee80211_channel *notify_channel;
2358         struct cfg80211_bss *bss;
2359         struct ieee80211_supported_band *band;
2360         struct brcmu_chan ch;
2361         u16 channel;
2362         u32 freq;
2363         u16 notify_capability;
2364         u16 notify_interval;
2365         u8 *notify_ie;
2366         size_t notify_ielen;
2367         s32 notify_signal;
2368
2369         if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2370                 brcmf_err("Bss info is larger than buffer. Discarding\n");
2371                 return 0;
2372         }
2373
2374         if (!bi->ctl_ch) {
2375                 ch.chspec = le16_to_cpu(bi->chanspec);
2376                 cfg->d11inf.decchspec(&ch);
2377                 bi->ctl_ch = ch.chnum;
2378         }
2379         channel = bi->ctl_ch;
2380
2381         if (channel <= CH_MAX_2G_CHANNEL)
2382                 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2383         else
2384                 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2385
2386         freq = ieee80211_channel_to_frequency(channel, band->band);
2387         notify_channel = ieee80211_get_channel(wiphy, freq);
2388
2389         notify_capability = le16_to_cpu(bi->capability);
2390         notify_interval = le16_to_cpu(bi->beacon_period);
2391         notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2392         notify_ielen = le32_to_cpu(bi->ie_length);
2393         notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2394
2395         brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2396         brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2397         brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2398         brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2399         brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2400
2401         bss = cfg80211_inform_bss(wiphy, notify_channel,
2402                                   CFG80211_BSS_FTYPE_UNKNOWN,
2403                                   (const u8 *)bi->BSSID,
2404                                   0, notify_capability,
2405                                   notify_interval, notify_ie,
2406                                   notify_ielen, notify_signal,
2407                                   GFP_KERNEL);
2408
2409         if (!bss)
2410                 return -ENOMEM;
2411
2412         cfg80211_put_bss(wiphy, bss);
2413
2414         return 0;
2415 }
2416
2417 static struct brcmf_bss_info_le *
2418 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2419 {
2420         if (bss == NULL)
2421                 return list->bss_info_le;
2422         return (struct brcmf_bss_info_le *)((unsigned long)bss +
2423                                             le32_to_cpu(bss->length));
2424 }
2425
2426 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2427 {
2428         struct brcmf_scan_results *bss_list;
2429         struct brcmf_bss_info_le *bi = NULL;    /* must be initialized */
2430         s32 err = 0;
2431         int i;
2432
2433         bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
2434         if (bss_list->count != 0 &&
2435             bss_list->version != BRCMF_BSS_INFO_VERSION) {
2436                 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2437                           bss_list->version);
2438                 return -EOPNOTSUPP;
2439         }
2440         brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2441         for (i = 0; i < bss_list->count; i++) {
2442                 bi = next_bss_le(bss_list, bi);
2443                 err = brcmf_inform_single_bss(cfg, bi);
2444                 if (err)
2445                         break;
2446         }
2447         return err;
2448 }
2449
2450 static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2451                           struct net_device *ndev, const u8 *bssid)
2452 {
2453         struct wiphy *wiphy = cfg_to_wiphy(cfg);
2454         struct ieee80211_channel *notify_channel;
2455         struct brcmf_bss_info_le *bi = NULL;
2456         struct ieee80211_supported_band *band;
2457         struct cfg80211_bss *bss;
2458         struct brcmu_chan ch;
2459         u8 *buf = NULL;
2460         s32 err = 0;
2461         u32 freq;
2462         u16 notify_capability;
2463         u16 notify_interval;
2464         u8 *notify_ie;
2465         size_t notify_ielen;
2466         s32 notify_signal;
2467
2468         brcmf_dbg(TRACE, "Enter\n");
2469
2470         buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2471         if (buf == NULL) {
2472                 err = -ENOMEM;
2473                 goto CleanUp;
2474         }
2475
2476         *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2477
2478         err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2479                                      buf, WL_BSS_INFO_MAX);
2480         if (err) {
2481                 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2482                 goto CleanUp;
2483         }
2484
2485         bi = (struct brcmf_bss_info_le *)(buf + 4);
2486
2487         ch.chspec = le16_to_cpu(bi->chanspec);
2488         cfg->d11inf.decchspec(&ch);
2489
2490         if (ch.band == BRCMU_CHAN_BAND_2G)
2491                 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2492         else
2493                 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2494
2495         freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
2496         notify_channel = ieee80211_get_channel(wiphy, freq);
2497
2498         notify_capability = le16_to_cpu(bi->capability);
2499         notify_interval = le16_to_cpu(bi->beacon_period);
2500         notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2501         notify_ielen = le32_to_cpu(bi->ie_length);
2502         notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2503
2504         brcmf_dbg(CONN, "channel: %d(%d)\n", ch.chnum, freq);
2505         brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2506         brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2507         brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2508
2509         bss = cfg80211_inform_bss(wiphy, notify_channel,
2510                                   CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0,
2511                                   notify_capability, notify_interval,
2512                                   notify_ie, notify_ielen, notify_signal,
2513                                   GFP_KERNEL);
2514
2515         if (!bss) {
2516                 err = -ENOMEM;
2517                 goto CleanUp;
2518         }
2519
2520         cfg80211_put_bss(wiphy, bss);
2521
2522 CleanUp:
2523
2524         kfree(buf);
2525
2526         brcmf_dbg(TRACE, "Exit\n");
2527
2528         return err;
2529 }
2530
2531 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2532                                  struct brcmf_if *ifp)
2533 {
2534         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ifp->ndev);
2535         struct brcmf_bss_info_le *bi;
2536         struct brcmf_ssid *ssid;
2537         const struct brcmf_tlv *tim;
2538         u16 beacon_interval;
2539         u8 dtim_period;
2540         size_t ie_len;
2541         u8 *ie;
2542         s32 err = 0;
2543
2544         brcmf_dbg(TRACE, "Enter\n");
2545         if (brcmf_is_ibssmode(ifp->vif))
2546                 return err;
2547
2548         ssid = &profile->ssid;
2549
2550         *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2551         err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2552                                      cfg->extra_buf, WL_EXTRA_BUF_MAX);
2553         if (err) {
2554                 brcmf_err("Could not get bss info %d\n", err);
2555                 goto update_bss_info_out;
2556         }
2557
2558         bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2559         err = brcmf_inform_single_bss(cfg, bi);
2560         if (err)
2561                 goto update_bss_info_out;
2562
2563         ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2564         ie_len = le32_to_cpu(bi->ie_length);
2565         beacon_interval = le16_to_cpu(bi->beacon_period);
2566
2567         tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2568         if (tim)
2569                 dtim_period = tim->data[1];
2570         else {
2571                 /*
2572                 * active scan was done so we could not get dtim
2573                 * information out of probe response.
2574                 * so we speficially query dtim information to dongle.
2575                 */
2576                 u32 var;
2577                 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2578                 if (err) {
2579                         brcmf_err("wl dtim_assoc failed (%d)\n", err);
2580                         goto update_bss_info_out;
2581                 }
2582                 dtim_period = (u8)var;
2583         }
2584
2585 update_bss_info_out:
2586         brcmf_dbg(TRACE, "Exit");
2587         return err;
2588 }
2589
2590 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2591 {
2592         struct escan_info *escan = &cfg->escan_info;
2593
2594         set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2595         if (cfg->scan_request) {
2596                 escan->escan_state = WL_ESCAN_STATE_IDLE;
2597                 brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
2598         }
2599         clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2600         clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2601 }
2602
2603 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2604 {
2605         struct brcmf_cfg80211_info *cfg =
2606                         container_of(work, struct brcmf_cfg80211_info,
2607                                      escan_timeout_work);
2608
2609         brcmf_inform_bss(cfg);
2610         brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
2611 }
2612
2613 static void brcmf_escan_timeout(unsigned long data)
2614 {
2615         struct brcmf_cfg80211_info *cfg =
2616                         (struct brcmf_cfg80211_info *)data;
2617
2618         if (cfg->scan_request) {
2619                 brcmf_err("timer expired\n");
2620                 schedule_work(&cfg->escan_timeout_work);
2621         }
2622 }
2623
2624 static s32
2625 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
2626                               struct brcmf_bss_info_le *bss,
2627                               struct brcmf_bss_info_le *bss_info_le)
2628 {
2629         struct brcmu_chan ch_bss, ch_bss_info_le;
2630
2631         ch_bss.chspec = le16_to_cpu(bss->chanspec);
2632         cfg->d11inf.decchspec(&ch_bss);
2633         ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
2634         cfg->d11inf.decchspec(&ch_bss_info_le);
2635
2636         if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2637                 ch_bss.band == ch_bss_info_le.band &&
2638                 bss_info_le->SSID_len == bss->SSID_len &&
2639                 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2640                 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) ==
2641                         (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) {
2642                         s16 bss_rssi = le16_to_cpu(bss->RSSI);
2643                         s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2644
2645                         /* preserve max RSSI if the measurements are
2646                         * both on-channel or both off-channel
2647                         */
2648                         if (bss_info_rssi > bss_rssi)
2649                                 bss->RSSI = bss_info_le->RSSI;
2650                 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) &&
2651                         (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) {
2652                         /* preserve the on-channel rssi measurement
2653                         * if the new measurement is off channel
2654                         */
2655                         bss->RSSI = bss_info_le->RSSI;
2656                         bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL;
2657                 }
2658                 return 1;
2659         }
2660         return 0;
2661 }
2662
2663 static s32
2664 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
2665                              const struct brcmf_event_msg *e, void *data)
2666 {
2667         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2668         s32 status;
2669         struct brcmf_escan_result_le *escan_result_le;
2670         struct brcmf_bss_info_le *bss_info_le;
2671         struct brcmf_bss_info_le *bss = NULL;
2672         u32 bi_length;
2673         struct brcmf_scan_results *list;
2674         u32 i;
2675         bool aborted;
2676
2677         status = e->status;
2678
2679         if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2680                 brcmf_err("scan not ready, bssidx=%d\n", ifp->bssidx);
2681                 return -EPERM;
2682         }
2683
2684         if (status == BRCMF_E_STATUS_PARTIAL) {
2685                 brcmf_dbg(SCAN, "ESCAN Partial result\n");
2686                 escan_result_le = (struct brcmf_escan_result_le *) data;
2687                 if (!escan_result_le) {
2688                         brcmf_err("Invalid escan result (NULL pointer)\n");
2689                         goto exit;
2690                 }
2691                 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2692                         brcmf_err("Invalid bss_count %d: ignoring\n",
2693                                   escan_result_le->bss_count);
2694                         goto exit;
2695                 }
2696                 bss_info_le = &escan_result_le->bss_info_le;
2697
2698                 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
2699                         goto exit;
2700
2701                 if (!cfg->scan_request) {
2702                         brcmf_dbg(SCAN, "result without cfg80211 request\n");
2703                         goto exit;
2704                 }
2705
2706                 bi_length = le32_to_cpu(bss_info_le->length);
2707                 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2708                                         WL_ESCAN_RESULTS_FIXED_SIZE)) {
2709                         brcmf_err("Invalid bss_info length %d: ignoring\n",
2710                                   bi_length);
2711                         goto exit;
2712                 }
2713
2714                 if (!(cfg_to_wiphy(cfg)->interface_modes &
2715                                         BIT(NL80211_IFTYPE_ADHOC))) {
2716                         if (le16_to_cpu(bss_info_le->capability) &
2717                                                 WLAN_CAPABILITY_IBSS) {
2718                                 brcmf_err("Ignoring IBSS result\n");
2719                                 goto exit;
2720                         }
2721                 }
2722
2723                 list = (struct brcmf_scan_results *)
2724                                 cfg->escan_info.escan_buf;
2725                 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2726                         brcmf_err("Buffer is too small: ignoring\n");
2727                         goto exit;
2728                 }
2729
2730                 for (i = 0; i < list->count; i++) {
2731                         bss = bss ? (struct brcmf_bss_info_le *)
2732                                 ((unsigned char *)bss +
2733                                 le32_to_cpu(bss->length)) : list->bss_info_le;
2734                         if (brcmf_compare_update_same_bss(cfg, bss,
2735                                                           bss_info_le))
2736                                 goto exit;
2737                 }
2738                 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2739                         bss_info_le, bi_length);
2740                 list->version = le32_to_cpu(bss_info_le->version);
2741                 list->buflen += bi_length;
2742                 list->count++;
2743         } else {
2744                 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2745                 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
2746                         goto exit;
2747                 if (cfg->scan_request) {
2748                         brcmf_inform_bss(cfg);
2749                         aborted = status != BRCMF_E_STATUS_SUCCESS;
2750                         brcmf_notify_escan_complete(cfg, ifp, aborted, false);
2751                 } else
2752                         brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
2753                                   status);
2754         }
2755 exit:
2756         return 0;
2757 }
2758
2759 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2760 {
2761         brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
2762                             brcmf_cfg80211_escan_handler);
2763         cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2764         /* Init scan_timeout timer */
2765         init_timer(&cfg->escan_timeout);
2766         cfg->escan_timeout.data = (unsigned long) cfg;
2767         cfg->escan_timeout.function = brcmf_escan_timeout;
2768         INIT_WORK(&cfg->escan_timeout_work,
2769                   brcmf_cfg80211_escan_timeout_worker);
2770 }
2771
2772 static __always_inline void brcmf_delay(u32 ms)
2773 {
2774         if (ms < 1000 / HZ) {
2775                 cond_resched();
2776                 mdelay(ms);
2777         } else {
2778                 msleep(ms);
2779         }
2780 }
2781
2782 static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4],
2783                                      u8 *pattern, u32 patternsize, u8 *mask,
2784                                      u32 packet_offset)
2785 {
2786         struct brcmf_fil_wowl_pattern_le *filter;
2787         u32 masksize;
2788         u32 patternoffset;
2789         u8 *buf;
2790         u32 bufsize;
2791         s32 ret;
2792
2793         masksize = (patternsize + 7) / 8;
2794         patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize;
2795
2796         bufsize = sizeof(*filter) + patternsize + masksize;
2797         buf = kzalloc(bufsize, GFP_KERNEL);
2798         if (!buf)
2799                 return -ENOMEM;
2800         filter = (struct brcmf_fil_wowl_pattern_le *)buf;
2801
2802         memcpy(filter->cmd, cmd, 4);
2803         filter->masksize = cpu_to_le32(masksize);
2804         filter->offset = cpu_to_le32(packet_offset);
2805         filter->patternoffset = cpu_to_le32(patternoffset);
2806         filter->patternsize = cpu_to_le32(patternsize);
2807         filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP);
2808
2809         if ((mask) && (masksize))
2810                 memcpy(buf + sizeof(*filter), mask, masksize);
2811         if ((pattern) && (patternsize))
2812                 memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize);
2813
2814         ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize);
2815
2816         kfree(buf);
2817         return ret;
2818 }
2819
2820 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2821 {
2822         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2823         struct net_device *ndev = cfg_to_ndev(cfg);
2824         struct brcmf_if *ifp = netdev_priv(ndev);
2825
2826         brcmf_dbg(TRACE, "Enter\n");
2827
2828         if (cfg->wowl_enabled) {
2829                 brcmf_configure_arp_offload(ifp, true);
2830                 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM,
2831                                       cfg->pre_wowl_pmmode);
2832                 brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0);
2833                 brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0);
2834                 cfg->wowl_enabled = false;
2835         }
2836         return 0;
2837 }
2838
2839 static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg,
2840                                  struct brcmf_if *ifp,
2841                                  struct cfg80211_wowlan *wowl)
2842 {
2843         u32 wowl_config;
2844         u32 i;
2845
2846         brcmf_dbg(TRACE, "Suspend, wowl config.\n");
2847
2848         brcmf_configure_arp_offload(ifp, false);
2849         brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->pre_wowl_pmmode);
2850         brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX);
2851
2852         wowl_config = 0;
2853         if (wowl->disconnect)
2854                 wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR;
2855         if (wowl->magic_pkt)
2856                 wowl_config |= BRCMF_WOWL_MAGIC;
2857         if ((wowl->patterns) && (wowl->n_patterns)) {
2858                 wowl_config |= BRCMF_WOWL_NET;
2859                 for (i = 0; i < wowl->n_patterns; i++) {
2860                         brcmf_config_wowl_pattern(ifp, "add",
2861                                 (u8 *)wowl->patterns[i].pattern,
2862                                 wowl->patterns[i].pattern_len,
2863                                 (u8 *)wowl->patterns[i].mask,
2864                                 wowl->patterns[i].pkt_offset);
2865                 }
2866         }
2867         brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config);
2868         brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1);
2869         brcmf_bus_wowl_config(cfg->pub->bus_if, true);
2870         cfg->wowl_enabled = true;
2871 }
2872
2873 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
2874                                   struct cfg80211_wowlan *wowl)
2875 {
2876         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2877         struct net_device *ndev = cfg_to_ndev(cfg);
2878         struct brcmf_if *ifp = netdev_priv(ndev);
2879         struct brcmf_cfg80211_vif *vif;
2880
2881         brcmf_dbg(TRACE, "Enter\n");
2882
2883         /* if the primary net_device is not READY there is nothing
2884          * we can do but pray resume goes smoothly.
2885          */
2886         if (!check_vif_up(ifp->vif))
2887                 goto exit;
2888
2889         /* end any scanning */
2890         if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
2891                 brcmf_abort_scanning(cfg);
2892
2893         if (wowl == NULL) {
2894                 brcmf_bus_wowl_config(cfg->pub->bus_if, false);
2895                 list_for_each_entry(vif, &cfg->vif_list, list) {
2896                         if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
2897                                 continue;
2898                         /* While going to suspend if associated with AP
2899                          * disassociate from AP to save power while system is
2900                          * in suspended state
2901                          */
2902                         brcmf_link_down(vif);
2903                         /* Make sure WPA_Supplicant receives all the event
2904                          * generated due to DISASSOC call to the fw to keep
2905                          * the state fw and WPA_Supplicant state consistent
2906                          */
2907                         brcmf_delay(500);
2908                 }
2909                 /* Configure MPC */
2910                 brcmf_set_mpc(ifp, 1);
2911
2912         } else {
2913                 /* Configure WOWL paramaters */
2914                 brcmf_configure_wowl(cfg, ifp, wowl);
2915         }
2916
2917 exit:
2918         brcmf_dbg(TRACE, "Exit\n");
2919         /* clear any scanning activity */
2920         cfg->scan_status = 0;
2921         return 0;
2922 }
2923
2924 static __used s32
2925 brcmf_update_pmklist(struct net_device *ndev,
2926                      struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
2927 {
2928         int i, j;
2929         int pmkid_len;
2930
2931         pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
2932
2933         brcmf_dbg(CONN, "No of elements %d\n", pmkid_len);
2934         for (i = 0; i < pmkid_len; i++) {
2935                 brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i,
2936                           &pmk_list->pmkids.pmkid[i].BSSID);
2937                 for (j = 0; j < WLAN_PMKID_LEN; j++)
2938                         brcmf_dbg(CONN, "%02x\n",
2939                                   pmk_list->pmkids.pmkid[i].PMKID[j]);
2940         }
2941
2942         if (!err)
2943                 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
2944                                          (char *)pmk_list, sizeof(*pmk_list));
2945
2946         return err;
2947 }
2948
2949 static s32
2950 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2951                          struct cfg80211_pmksa *pmksa)
2952 {
2953         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2954         struct brcmf_if *ifp = netdev_priv(ndev);
2955         struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
2956         s32 err = 0;
2957         int i;
2958         int pmkid_len;
2959
2960         brcmf_dbg(TRACE, "Enter\n");
2961         if (!check_vif_up(ifp->vif))
2962                 return -EIO;
2963
2964         pmkid_len = le32_to_cpu(pmkids->npmkid);
2965         for (i = 0; i < pmkid_len; i++)
2966                 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
2967                         break;
2968         if (i < WL_NUM_PMKIDS_MAX) {
2969                 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
2970                 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2971                 if (i == pmkid_len) {
2972                         pmkid_len++;
2973                         pmkids->npmkid = cpu_to_le32(pmkid_len);
2974                 }
2975         } else
2976                 err = -EINVAL;
2977
2978         brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
2979                   pmkids->pmkid[pmkid_len].BSSID);
2980         for (i = 0; i < WLAN_PMKID_LEN; i++)
2981                 brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
2982
2983         err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2984
2985         brcmf_dbg(TRACE, "Exit\n");
2986         return err;
2987 }
2988
2989 static s32
2990 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2991                       struct cfg80211_pmksa *pmksa)
2992 {
2993         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2994         struct brcmf_if *ifp = netdev_priv(ndev);
2995         struct pmkid_list pmkid;
2996         s32 err = 0;
2997         int i, pmkid_len;
2998
2999         brcmf_dbg(TRACE, "Enter\n");
3000         if (!check_vif_up(ifp->vif))
3001                 return -EIO;
3002
3003         memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
3004         memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3005
3006         brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
3007                   &pmkid.pmkid[0].BSSID);
3008         for (i = 0; i < WLAN_PMKID_LEN; i++)
3009                 brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]);
3010
3011         pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
3012         for (i = 0; i < pmkid_len; i++)
3013                 if (!memcmp
3014                     (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
3015                      ETH_ALEN))
3016                         break;
3017
3018         if ((pmkid_len > 0)
3019             && (i < pmkid_len)) {
3020                 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
3021                        sizeof(struct pmkid));
3022                 for (; i < (pmkid_len - 1); i++) {
3023                         memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
3024                                &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
3025                                ETH_ALEN);
3026                         memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
3027                                &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
3028                                WLAN_PMKID_LEN);
3029                 }
3030                 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
3031         } else
3032                 err = -EINVAL;
3033
3034         err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3035
3036         brcmf_dbg(TRACE, "Exit\n");
3037         return err;
3038
3039 }
3040
3041 static s32
3042 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
3043 {
3044         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3045         struct brcmf_if *ifp = netdev_priv(ndev);
3046         s32 err = 0;
3047
3048         brcmf_dbg(TRACE, "Enter\n");
3049         if (!check_vif_up(ifp->vif))
3050                 return -EIO;
3051
3052         memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
3053         err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3054
3055         brcmf_dbg(TRACE, "Exit\n");
3056         return err;
3057
3058 }
3059
3060 /*
3061  * PFN result doesn't have all the info which are
3062  * required by the supplicant
3063  * (For e.g IEs) Do a target Escan so that sched scan results are reported
3064  * via wl_inform_single_bss in the required format. Escan does require the
3065  * scan request in the form of cfg80211_scan_request. For timebeing, create
3066  * cfg80211_scan_request one out of the received PNO event.
3067  */
3068 static s32
3069 brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
3070                                 const struct brcmf_event_msg *e, void *data)
3071 {
3072         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
3073         struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
3074         struct cfg80211_scan_request *request = NULL;
3075         struct cfg80211_ssid *ssid = NULL;
3076         struct ieee80211_channel *channel = NULL;
3077         struct wiphy *wiphy = cfg_to_wiphy(cfg);
3078         int err = 0;
3079         int channel_req = 0;
3080         int band = 0;
3081         struct brcmf_pno_scanresults_le *pfn_result;
3082         u32 result_count;
3083         u32 status;
3084
3085         brcmf_dbg(SCAN, "Enter\n");
3086
3087         if (e->event_code == BRCMF_E_PFN_NET_LOST) {
3088                 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
3089                 return 0;
3090         }
3091
3092         pfn_result = (struct brcmf_pno_scanresults_le *)data;
3093         result_count = le32_to_cpu(pfn_result->count);
3094         status = le32_to_cpu(pfn_result->status);
3095
3096         /*
3097          * PFN event is limited to fit 512 bytes so we may get
3098          * multiple NET_FOUND events. For now place a warning here.
3099          */
3100         WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
3101         brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
3102         if (result_count > 0) {
3103                 int i;
3104
3105                 request = kzalloc(sizeof(*request), GFP_KERNEL);
3106                 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
3107                 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
3108                 if (!request || !ssid || !channel) {
3109                         err = -ENOMEM;
3110                         goto out_err;
3111                 }
3112
3113                 request->wiphy = wiphy;
3114                 data += sizeof(struct brcmf_pno_scanresults_le);
3115                 netinfo_start = (struct brcmf_pno_net_info_le *)data;
3116
3117                 for (i = 0; i < result_count; i++) {
3118                         netinfo = &netinfo_start[i];
3119                         if (!netinfo) {
3120                                 brcmf_err("Invalid netinfo ptr. index: %d\n",
3121                                           i);
3122                                 err = -EINVAL;
3123                                 goto out_err;
3124                         }
3125
3126                         brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
3127                                   netinfo->SSID, netinfo->channel);
3128                         memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
3129                         ssid[i].ssid_len = netinfo->SSID_len;
3130                         request->n_ssids++;
3131
3132                         channel_req = netinfo->channel;
3133                         if (channel_req <= CH_MAX_2G_CHANNEL)
3134                                 band = NL80211_BAND_2GHZ;
3135                         else
3136                                 band = NL80211_BAND_5GHZ;
3137                         channel[i].center_freq =
3138                                 ieee80211_channel_to_frequency(channel_req,
3139                                                                band);
3140                         channel[i].band = band;
3141                         channel[i].flags |= IEEE80211_CHAN_NO_HT40;
3142                         request->channels[i] = &channel[i];
3143                         request->n_channels++;
3144                 }
3145
3146                 /* assign parsed ssid array */
3147                 if (request->n_ssids)
3148                         request->ssids = &ssid[0];
3149
3150                 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3151                         /* Abort any on-going scan */
3152                         brcmf_abort_scanning(cfg);
3153                 }
3154
3155                 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3156                 cfg->escan_info.run = brcmf_run_escan;
3157                 err = brcmf_do_escan(cfg, wiphy, ifp, request);
3158                 if (err) {
3159                         clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3160                         goto out_err;
3161                 }
3162                 cfg->sched_escan = true;
3163                 cfg->scan_request = request;
3164         } else {
3165                 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
3166                 goto out_err;
3167         }
3168
3169         kfree(ssid);
3170         kfree(channel);
3171         kfree(request);
3172         return 0;
3173
3174 out_err:
3175         kfree(ssid);
3176         kfree(channel);
3177         kfree(request);
3178         cfg80211_sched_scan_stopped(wiphy);
3179         return err;
3180 }
3181
3182 static int brcmf_dev_pno_clean(struct net_device *ndev)
3183 {
3184         int ret;
3185
3186         /* Disable pfn */
3187         ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3188         if (ret == 0) {
3189                 /* clear pfn */
3190                 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3191                                                NULL, 0);
3192         }
3193         if (ret < 0)
3194                 brcmf_err("failed code %d\n", ret);
3195
3196         return ret;
3197 }
3198
3199 static int brcmf_dev_pno_config(struct net_device *ndev)
3200 {
3201         struct brcmf_pno_param_le pfn_param;
3202
3203         memset(&pfn_param, 0, sizeof(pfn_param));
3204         pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3205
3206         /* set extra pno params */
3207         pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3208         pfn_param.repeat = BRCMF_PNO_REPEAT;
3209         pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3210
3211         /* set up pno scan fr */
3212         pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3213
3214         return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
3215                                         &pfn_param, sizeof(pfn_param));
3216 }
3217
3218 static int
3219 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3220                                 struct net_device *ndev,
3221                                 struct cfg80211_sched_scan_request *request)
3222 {
3223         struct brcmf_if *ifp = netdev_priv(ndev);
3224         struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3225         struct brcmf_pno_net_param_le pfn;
3226         int i;
3227         int ret = 0;
3228
3229         brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
3230                   request->n_match_sets, request->n_ssids);
3231         if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3232                 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
3233                 return -EAGAIN;
3234         }
3235         if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
3236                 brcmf_err("Scanning suppressed: status (%lu)\n",
3237                           cfg->scan_status);
3238                 return -EAGAIN;
3239         }
3240
3241         if (!request->n_ssids || !request->n_match_sets) {
3242                 brcmf_dbg(SCAN, "Invalid sched scan req!! n_ssids:%d\n",
3243                           request->n_ssids);
3244                 return -EINVAL;
3245         }
3246
3247         if (request->n_ssids > 0) {
3248                 for (i = 0; i < request->n_ssids; i++) {
3249                         /* Active scan req for ssids */
3250                         brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
3251                                   request->ssids[i].ssid);
3252
3253                         /*
3254                          * match_set ssids is a supert set of n_ssid list,
3255                          * so we need not add these set seperately.
3256                          */
3257                 }
3258         }
3259
3260         if (request->n_match_sets > 0) {
3261                 /* clean up everything */
3262                 ret = brcmf_dev_pno_clean(ndev);
3263                 if  (ret < 0) {
3264                         brcmf_err("failed error=%d\n", ret);
3265                         return ret;
3266                 }
3267
3268                 /* configure pno */
3269                 ret = brcmf_dev_pno_config(ndev);
3270                 if (ret < 0) {
3271                         brcmf_err("PNO setup failed!! ret=%d\n", ret);
3272                         return -EINVAL;
3273                 }
3274
3275                 /* configure each match set */
3276                 for (i = 0; i < request->n_match_sets; i++) {
3277                         struct cfg80211_ssid *ssid;
3278                         u32 ssid_len;
3279
3280                         ssid = &request->match_sets[i].ssid;
3281                         ssid_len = ssid->ssid_len;
3282
3283                         if (!ssid_len) {
3284                                 brcmf_err("skip broadcast ssid\n");
3285                                 continue;
3286                         }
3287                         pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3288                         pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3289                         pfn.wsec = cpu_to_le32(0);
3290                         pfn.infra = cpu_to_le32(1);
3291                         pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3292                         pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3293                         memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3294                         ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3295                                                        sizeof(pfn));
3296                         brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
3297                                   ret == 0 ? "set" : "failed", ssid->ssid);
3298                 }
3299                 /* Enable the PNO */
3300                 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3301                         brcmf_err("PNO enable failed!! ret=%d\n", ret);
3302                         return -EINVAL;
3303                 }
3304         } else {
3305                 return -EINVAL;
3306         }
3307
3308         return 0;
3309 }
3310
3311 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3312                                           struct net_device *ndev)
3313 {
3314         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3315
3316         brcmf_dbg(SCAN, "enter\n");
3317         brcmf_dev_pno_clean(ndev);
3318         if (cfg->sched_escan)
3319                 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true);
3320         return 0;
3321 }
3322
3323 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3324 {
3325         s32 err;
3326
3327         /* set auth */
3328         err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3329         if (err < 0) {
3330                 brcmf_err("auth error %d\n", err);
3331                 return err;
3332         }
3333         /* set wsec */
3334         err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3335         if (err < 0) {
3336                 brcmf_err("wsec error %d\n", err);
3337                 return err;
3338         }
3339         /* set upper-layer auth */
3340         err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3341         if (err < 0) {
3342                 brcmf_err("wpa_auth error %d\n", err);
3343                 return err;
3344         }
3345
3346         return 0;
3347 }
3348
3349 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3350 {
3351         if (is_rsn_ie)
3352                 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3353
3354         return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3355 }
3356
3357 static s32
3358 brcmf_configure_wpaie(struct net_device *ndev,
3359                       const struct brcmf_vs_tlv *wpa_ie,
3360                       bool is_rsn_ie)
3361 {
3362         struct brcmf_if *ifp = netdev_priv(ndev);
3363         u32 auth = 0; /* d11 open authentication */
3364         u16 count;
3365         s32 err = 0;
3366         s32 len = 0;
3367         u32 i;
3368         u32 wsec;
3369         u32 pval = 0;
3370         u32 gval = 0;
3371         u32 wpa_auth = 0;
3372         u32 offset;
3373         u8 *data;
3374         u16 rsn_cap;
3375         u32 wme_bss_disable;
3376
3377         brcmf_dbg(TRACE, "Enter\n");
3378         if (wpa_ie == NULL)
3379                 goto exit;
3380
3381         len = wpa_ie->len + TLV_HDR_LEN;
3382         data = (u8 *)wpa_ie;
3383         offset = TLV_HDR_LEN;
3384         if (!is_rsn_ie)
3385                 offset += VS_IE_FIXED_HDR_LEN;
3386         else
3387                 offset += WPA_IE_VERSION_LEN;
3388
3389         /* check for multicast cipher suite */
3390         if (offset + WPA_IE_MIN_OUI_LEN > len) {
3391                 err = -EINVAL;
3392                 brcmf_err("no multicast cipher suite\n");
3393                 goto exit;
3394         }
3395
3396         if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3397                 err = -EINVAL;
3398                 brcmf_err("ivalid OUI\n");
3399                 goto exit;
3400         }
3401         offset += TLV_OUI_LEN;
3402
3403         /* pick up multicast cipher */
3404         switch (data[offset]) {
3405         case WPA_CIPHER_NONE:
3406                 gval = 0;
3407                 break;
3408         case WPA_CIPHER_WEP_40:
3409         case WPA_CIPHER_WEP_104:
3410                 gval = WEP_ENABLED;
3411                 break;
3412         case WPA_CIPHER_TKIP:
3413                 gval = TKIP_ENABLED;
3414                 break;
3415         case WPA_CIPHER_AES_CCM:
3416                 gval = AES_ENABLED;
3417                 break;
3418         default:
3419                 err = -EINVAL;
3420                 brcmf_err("Invalid multi cast cipher info\n");
3421                 goto exit;
3422         }
3423
3424         offset++;
3425         /* walk thru unicast cipher list and pick up what we recognize */
3426         count = data[offset] + (data[offset + 1] << 8);
3427         offset += WPA_IE_SUITE_COUNT_LEN;
3428         /* Check for unicast suite(s) */
3429         if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3430                 err = -EINVAL;
3431                 brcmf_err("no unicast cipher suite\n");
3432                 goto exit;
3433         }
3434         for (i = 0; i < count; i++) {
3435                 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3436                         err = -EINVAL;
3437                         brcmf_err("ivalid OUI\n");
3438                         goto exit;
3439                 }
3440                 offset += TLV_OUI_LEN;
3441                 switch (data[offset]) {
3442                 case WPA_CIPHER_NONE:
3443                         break;
3444                 case WPA_CIPHER_WEP_40:
3445                 case WPA_CIPHER_WEP_104:
3446                         pval |= WEP_ENABLED;
3447                         break;
3448                 case WPA_CIPHER_TKIP:
3449                         pval |= TKIP_ENABLED;
3450                         break;
3451                 case WPA_CIPHER_AES_CCM:
3452                         pval |= AES_ENABLED;
3453                         break;
3454                 default:
3455                         brcmf_err("Ivalid unicast security info\n");
3456                 }
3457                 offset++;
3458         }
3459         /* walk thru auth management suite list and pick up what we recognize */
3460         count = data[offset] + (data[offset + 1] << 8);
3461         offset += WPA_IE_SUITE_COUNT_LEN;
3462         /* Check for auth key management suite(s) */
3463         if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3464                 err = -EINVAL;
3465                 brcmf_err("no auth key mgmt suite\n");
3466                 goto exit;
3467         }
3468         for (i = 0; i < count; i++) {
3469                 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3470                         err = -EINVAL;
3471                         brcmf_err("ivalid OUI\n");
3472                         goto exit;
3473                 }
3474                 offset += TLV_OUI_LEN;
3475                 switch (data[offset]) {
3476                 case RSN_AKM_NONE:
3477                         brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3478                         wpa_auth |= WPA_AUTH_NONE;
3479                         break;
3480                 case RSN_AKM_UNSPECIFIED:
3481                         brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3482                         is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3483                                     (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3484                         break;
3485                 case RSN_AKM_PSK:
3486                         brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3487                         is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3488                                     (wpa_auth |= WPA_AUTH_PSK);
3489                         break;
3490                 default:
3491                         brcmf_err("Ivalid key mgmt info\n");
3492                 }
3493                 offset++;
3494         }
3495
3496         if (is_rsn_ie) {
3497                 wme_bss_disable = 1;
3498                 if ((offset + RSN_CAP_LEN) <= len) {
3499                         rsn_cap = data[offset] + (data[offset + 1] << 8);
3500                         if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3501                                 wme_bss_disable = 0;
3502                 }
3503                 /* set wme_bss_disable to sync RSN Capabilities */
3504                 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3505                                                wme_bss_disable);
3506                 if (err < 0) {
3507                         brcmf_err("wme_bss_disable error %d\n", err);
3508                         goto exit;
3509                 }
3510         }
3511         /* FOR WPS , set SES_OW_ENABLED */
3512         wsec = (pval | gval | SES_OW_ENABLED);
3513
3514         /* set auth */
3515         err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3516         if (err < 0) {
3517                 brcmf_err("auth error %d\n", err);
3518                 goto exit;
3519         }
3520         /* set wsec */
3521         err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3522         if (err < 0) {
3523                 brcmf_err("wsec error %d\n", err);
3524                 goto exit;
3525         }
3526         /* set upper-layer auth */
3527         err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3528         if (err < 0) {
3529                 brcmf_err("wpa_auth error %d\n", err);
3530                 goto exit;
3531         }
3532
3533 exit:
3534         return err;
3535 }
3536
3537 static s32
3538 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
3539                      struct parsed_vndr_ies *vndr_ies)
3540 {
3541         struct brcmf_vs_tlv *vndrie;
3542         struct brcmf_tlv *ie;
3543         struct parsed_vndr_ie_info *parsed_info;
3544         s32 remaining_len;
3545
3546         remaining_len = (s32)vndr_ie_len;
3547         memset(vndr_ies, 0, sizeof(*vndr_ies));
3548
3549         ie = (struct brcmf_tlv *)vndr_ie_buf;
3550         while (ie) {
3551                 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3552                         goto next;
3553                 vndrie = (struct brcmf_vs_tlv *)ie;
3554                 /* len should be bigger than OUI length + one */
3555                 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3556                         brcmf_err("invalid vndr ie. length is too small %d\n",
3557                                   vndrie->len);
3558                         goto next;
3559                 }
3560                 /* if wpa or wme ie, do not add ie */
3561                 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3562                     ((vndrie->oui_type == WPA_OUI_TYPE) ||
3563                     (vndrie->oui_type == WME_OUI_TYPE))) {
3564                         brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
3565                         goto next;
3566                 }
3567
3568                 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3569
3570                 /* save vndr ie information */
3571                 parsed_info->ie_ptr = (char *)vndrie;
3572                 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3573                 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3574
3575                 vndr_ies->count++;
3576
3577                 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
3578                           parsed_info->vndrie.oui[0],
3579                           parsed_info->vndrie.oui[1],
3580                           parsed_info->vndrie.oui[2],
3581                           parsed_info->vndrie.oui_type);
3582
3583                 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
3584                         break;
3585 next:
3586                 remaining_len -= (ie->len + TLV_HDR_LEN);
3587                 if (remaining_len <= TLV_HDR_LEN)
3588                         ie = NULL;
3589                 else
3590                         ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
3591                                 TLV_HDR_LEN);
3592         }
3593         return 0;
3594 }
3595
3596 static u32
3597 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3598 {
3599
3600         __le32 iecount_le;
3601         __le32 pktflag_le;
3602
3603         strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3604         iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3605
3606         iecount_le = cpu_to_le32(1);
3607         memcpy(&iebuf[VNDR_IE_COUNT_OFFSET], &iecount_le, sizeof(iecount_le));
3608
3609         pktflag_le = cpu_to_le32(pktflag);
3610         memcpy(&iebuf[VNDR_IE_PKTFLAG_OFFSET], &pktflag_le, sizeof(pktflag_le));
3611
3612         memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3613
3614         return ie_len + VNDR_IE_HDR_SIZE;
3615 }
3616
3617 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
3618                           const u8 *vndr_ie_buf, u32 vndr_ie_len)
3619 {
3620         struct brcmf_if *ifp;
3621         struct vif_saved_ie *saved_ie;
3622         s32 err = 0;
3623         u8  *iovar_ie_buf;
3624         u8  *curr_ie_buf;
3625         u8  *mgmt_ie_buf = NULL;
3626         int mgmt_ie_buf_len;
3627         u32 *mgmt_ie_len;
3628         u32 del_add_ie_buf_len = 0;
3629         u32 total_ie_buf_len = 0;
3630         u32 parsed_ie_buf_len = 0;
3631         struct parsed_vndr_ies old_vndr_ies;
3632         struct parsed_vndr_ies new_vndr_ies;
3633         struct parsed_vndr_ie_info *vndrie_info;
3634         s32 i;
3635         u8 *ptr;
3636         int remained_buf_len;
3637
3638         if (!vif)
3639                 return -ENODEV;
3640         ifp = vif->ifp;
3641         saved_ie = &vif->saved_ie;
3642
3643         brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag);
3644         iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3645         if (!iovar_ie_buf)
3646                 return -ENOMEM;
3647         curr_ie_buf = iovar_ie_buf;
3648         switch (pktflag) {
3649         case BRCMF_VNDR_IE_PRBREQ_FLAG:
3650                 mgmt_ie_buf = saved_ie->probe_req_ie;
3651                 mgmt_ie_len = &saved_ie->probe_req_ie_len;
3652                 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
3653                 break;
3654         case BRCMF_VNDR_IE_PRBRSP_FLAG:
3655                 mgmt_ie_buf = saved_ie->probe_res_ie;
3656                 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3657                 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3658                 break;
3659         case BRCMF_VNDR_IE_BEACON_FLAG:
3660                 mgmt_ie_buf = saved_ie->beacon_ie;
3661                 mgmt_ie_len = &saved_ie->beacon_ie_len;
3662                 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
3663                 break;
3664         case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
3665                 mgmt_ie_buf = saved_ie->assoc_req_ie;
3666                 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
3667                 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
3668                 break;
3669         default:
3670                 err = -EPERM;
3671                 brcmf_err("not suitable type\n");
3672                 goto exit;
3673         }
3674
3675         if (vndr_ie_len > mgmt_ie_buf_len) {
3676                 err = -ENOMEM;
3677                 brcmf_err("extra IE size too big\n");
3678                 goto exit;
3679         }
3680
3681         /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3682         if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3683                 ptr = curr_ie_buf;
3684                 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3685                 for (i = 0; i < new_vndr_ies.count; i++) {
3686                         vndrie_info = &new_vndr_ies.ie_info[i];
3687                         memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3688                                vndrie_info->ie_len);
3689                         parsed_ie_buf_len += vndrie_info->ie_len;
3690                 }
3691         }
3692
3693         if (mgmt_ie_buf && *mgmt_ie_len) {
3694                 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3695                     (memcmp(mgmt_ie_buf, curr_ie_buf,
3696                             parsed_ie_buf_len) == 0)) {
3697                         brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
3698                         goto exit;
3699                 }
3700
3701                 /* parse old vndr_ie */
3702                 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3703
3704                 /* make a command to delete old ie */
3705                 for (i = 0; i < old_vndr_ies.count; i++) {
3706                         vndrie_info = &old_vndr_ies.ie_info[i];
3707
3708                         brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3709                                   vndrie_info->vndrie.id,
3710                                   vndrie_info->vndrie.len,
3711                                   vndrie_info->vndrie.oui[0],
3712                                   vndrie_info->vndrie.oui[1],
3713                                   vndrie_info->vndrie.oui[2]);
3714
3715                         del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3716                                                            vndrie_info->ie_ptr,
3717                                                            vndrie_info->ie_len,
3718                                                            "del");
3719                         curr_ie_buf += del_add_ie_buf_len;
3720                         total_ie_buf_len += del_add_ie_buf_len;
3721                 }
3722         }
3723
3724         *mgmt_ie_len = 0;
3725         /* Add if there is any extra IE */
3726         if (mgmt_ie_buf && parsed_ie_buf_len) {
3727                 ptr = mgmt_ie_buf;
3728
3729                 remained_buf_len = mgmt_ie_buf_len;
3730
3731                 /* make a command to add new ie */
3732                 for (i = 0; i < new_vndr_ies.count; i++) {
3733                         vndrie_info = &new_vndr_ies.ie_info[i];
3734
3735                         /* verify remained buf size before copy data */
3736                         if (remained_buf_len < (vndrie_info->vndrie.len +
3737                                                         VNDR_IE_VSIE_OFFSET)) {
3738                                 brcmf_err("no space in mgmt_ie_buf: len left %d",
3739                                           remained_buf_len);
3740                                 break;
3741                         }
3742                         remained_buf_len -= (vndrie_info->ie_len +
3743                                              VNDR_IE_VSIE_OFFSET);
3744
3745                         brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3746                                   vndrie_info->vndrie.id,
3747                                   vndrie_info->vndrie.len,
3748                                   vndrie_info->vndrie.oui[0],
3749                                   vndrie_info->vndrie.oui[1],
3750                                   vndrie_info->vndrie.oui[2]);
3751
3752                         del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3753                                                            vndrie_info->ie_ptr,
3754                                                            vndrie_info->ie_len,
3755                                                            "add");
3756
3757                         /* save the parsed IE in wl struct */
3758                         memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3759                                vndrie_info->ie_len);
3760                         *mgmt_ie_len += vndrie_info->ie_len;
3761
3762                         curr_ie_buf += del_add_ie_buf_len;
3763                         total_ie_buf_len += del_add_ie_buf_len;
3764                 }
3765         }
3766         if (total_ie_buf_len) {
3767                 err  = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3768                                                  total_ie_buf_len);
3769                 if (err)
3770                         brcmf_err("vndr ie set error : %d\n", err);
3771         }
3772
3773 exit:
3774         kfree(iovar_ie_buf);
3775         return err;
3776 }
3777
3778 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
3779 {
3780         s32 pktflags[] = {
3781                 BRCMF_VNDR_IE_PRBREQ_FLAG,
3782                 BRCMF_VNDR_IE_PRBRSP_FLAG,
3783                 BRCMF_VNDR_IE_BEACON_FLAG
3784         };
3785         int i;
3786
3787         for (i = 0; i < ARRAY_SIZE(pktflags); i++)
3788                 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
3789
3790         memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
3791         return 0;
3792 }
3793
3794 static s32
3795 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
3796                         struct cfg80211_beacon_data *beacon)
3797 {
3798         s32 err;
3799
3800         /* Set Beacon IEs to FW */
3801         err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
3802                                     beacon->tail, beacon->tail_len);
3803         if (err) {
3804                 brcmf_err("Set Beacon IE Failed\n");
3805                 return err;
3806         }
3807         brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
3808
3809         /* Set Probe Response IEs to FW */
3810         err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
3811                                     beacon->proberesp_ies,
3812                                     beacon->proberesp_ies_len);
3813         if (err)
3814                 brcmf_err("Set Probe Resp IE Failed\n");
3815         else
3816                 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
3817
3818         return err;
3819 }
3820
3821 static s32
3822 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3823                         struct cfg80211_ap_settings *settings)
3824 {
3825         s32 ie_offset;
3826         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3827         struct brcmf_if *ifp = netdev_priv(ndev);
3828         const struct brcmf_tlv *ssid_ie;
3829         struct brcmf_ssid_le ssid_le;
3830         s32 err = -EPERM;
3831         const struct brcmf_tlv *rsn_ie;
3832         const struct brcmf_vs_tlv *wpa_ie;
3833         struct brcmf_join_params join_params;
3834         enum nl80211_iftype dev_role;
3835         struct brcmf_fil_bss_enable_le bss_enable;
3836         u16 chanspec;
3837
3838         brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
3839                   settings->chandef.chan->hw_value,
3840                   settings->chandef.center_freq1, settings->chandef.width,
3841                   settings->beacon_interval, settings->dtim_period);
3842         brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
3843                   settings->ssid, settings->ssid_len, settings->auth_type,
3844                   settings->inactivity_timeout);
3845
3846         dev_role = ifp->vif->wdev.iftype;
3847
3848         memset(&ssid_le, 0, sizeof(ssid_le));
3849         if (settings->ssid == NULL || settings->ssid_len == 0) {
3850                 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
3851                 ssid_ie = brcmf_parse_tlvs(
3852                                 (u8 *)&settings->beacon.head[ie_offset],
3853                                 settings->beacon.head_len - ie_offset,
3854                                 WLAN_EID_SSID);
3855                 if (!ssid_ie)
3856                         return -EINVAL;
3857
3858                 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
3859                 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
3860                 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
3861         } else {
3862                 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
3863                 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
3864         }
3865
3866         brcmf_set_mpc(ifp, 0);
3867         brcmf_configure_arp_offload(ifp, false);
3868
3869         /* find the RSN_IE */
3870         rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
3871                                   settings->beacon.tail_len, WLAN_EID_RSN);
3872
3873         /* find the WPA_IE */
3874         wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
3875                                   settings->beacon.tail_len);
3876
3877         if ((wpa_ie != NULL || rsn_ie != NULL)) {
3878                 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
3879                 if (wpa_ie != NULL) {
3880                         /* WPA IE */
3881                         err = brcmf_configure_wpaie(ndev, wpa_ie, false);
3882                         if (err < 0)
3883                                 goto exit;
3884                 } else {
3885                         /* RSN IE */
3886                         err = brcmf_configure_wpaie(ndev,
3887                                 (struct brcmf_vs_tlv *)rsn_ie, true);
3888                         if (err < 0)
3889                                 goto exit;
3890                 }
3891         } else {
3892                 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
3893                 brcmf_configure_opensecurity(ifp);
3894         }
3895
3896         brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
3897
3898         chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef);
3899         err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
3900         if (err < 0) {
3901                 brcmf_err("Set Channel failed: chspec=%d, %d\n", chanspec, err);
3902                 goto exit;
3903         }
3904
3905         if (settings->beacon_interval) {
3906                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
3907                                             settings->beacon_interval);
3908                 if (err < 0) {
3909                         brcmf_err("Beacon Interval Set Error, %d\n", err);
3910                         goto exit;
3911                 }
3912         }
3913         if (settings->dtim_period) {
3914                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
3915                                             settings->dtim_period);
3916                 if (err < 0) {
3917                         brcmf_err("DTIM Interval Set Error, %d\n", err);
3918                         goto exit;
3919                 }
3920         }
3921
3922         if (dev_role == NL80211_IFTYPE_AP) {
3923                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
3924                 if (err < 0) {
3925                         brcmf_err("BRCMF_C_DOWN error %d\n", err);
3926                         goto exit;
3927                 }
3928                 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
3929         }
3930
3931         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
3932         if (err < 0) {
3933                 brcmf_err("SET INFRA error %d\n", err);
3934                 goto exit;
3935         }
3936         if (dev_role == NL80211_IFTYPE_AP) {
3937                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
3938                 if (err < 0) {
3939                         brcmf_err("setting AP mode failed %d\n", err);
3940                         goto exit;
3941                 }
3942                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
3943                 if (err < 0) {
3944                         brcmf_err("BRCMF_C_UP error (%d)\n", err);
3945                         goto exit;
3946                 }
3947
3948                 memset(&join_params, 0, sizeof(join_params));
3949                 /* join parameters starts with ssid */
3950                 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
3951                 /* create softap */
3952                 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
3953                                              &join_params, sizeof(join_params));
3954                 if (err < 0) {
3955                         brcmf_err("SET SSID error (%d)\n", err);
3956                         goto exit;
3957                 }
3958                 brcmf_dbg(TRACE, "AP mode configuration complete\n");
3959         } else {
3960                 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
3961                                                 sizeof(ssid_le));
3962                 if (err < 0) {
3963                         brcmf_err("setting ssid failed %d\n", err);
3964                         goto exit;
3965                 }
3966                 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
3967                 bss_enable.enable = cpu_to_le32(1);
3968                 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
3969                                                sizeof(bss_enable));
3970                 if (err < 0) {
3971                         brcmf_err("bss_enable config failed %d\n", err);
3972                         goto exit;
3973                 }
3974
3975                 brcmf_dbg(TRACE, "GO mode configuration complete\n");
3976         }
3977         clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
3978         set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
3979
3980 exit:
3981         if (err) {
3982                 brcmf_set_mpc(ifp, 1);
3983                 brcmf_configure_arp_offload(ifp, true);
3984         }
3985         return err;
3986 }
3987
3988 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
3989 {
3990         struct brcmf_if *ifp = netdev_priv(ndev);
3991         s32 err;
3992         struct brcmf_fil_bss_enable_le bss_enable;
3993         struct brcmf_join_params join_params;
3994
3995         brcmf_dbg(TRACE, "Enter\n");
3996
3997         if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
3998                 /* Due to most likely deauths outstanding we sleep */
3999                 /* first to make sure they get processed by fw. */
4000                 msleep(400);
4001
4002                 memset(&join_params, 0, sizeof(join_params));
4003                 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4004                                              &join_params, sizeof(join_params));
4005                 if (err < 0)
4006                         brcmf_err("SET SSID error (%d)\n", err);
4007                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
4008                 if (err < 0)
4009                         brcmf_err("BRCMF_C_UP error %d\n", err);
4010                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
4011                 if (err < 0)
4012                         brcmf_err("setting AP mode failed %d\n", err);
4013                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
4014                 if (err < 0)
4015                         brcmf_err("setting INFRA mode failed %d\n", err);
4016         } else {
4017                 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
4018                 bss_enable.enable = cpu_to_le32(0);
4019                 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
4020                                                sizeof(bss_enable));
4021                 if (err < 0)
4022                         brcmf_err("bss_enable config failed %d\n", err);
4023         }
4024         brcmf_set_mpc(ifp, 1);
4025         brcmf_configure_arp_offload(ifp, true);
4026         set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4027         clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4028
4029         return err;
4030 }
4031
4032 static s32
4033 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
4034                              struct cfg80211_beacon_data *info)
4035 {
4036         struct brcmf_if *ifp = netdev_priv(ndev);
4037         s32 err;
4038
4039         brcmf_dbg(TRACE, "Enter\n");
4040
4041         err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
4042
4043         return err;
4044 }
4045
4046 static int
4047 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
4048                            struct station_del_parameters *params)
4049 {
4050         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4051         struct brcmf_scb_val_le scbval;
4052         struct brcmf_if *ifp = netdev_priv(ndev);
4053         s32 err;
4054
4055         if (!params->mac)
4056                 return -EFAULT;
4057
4058         brcmf_dbg(TRACE, "Enter %pM\n", params->mac);
4059
4060         if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
4061                 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
4062         if (!check_vif_up(ifp->vif))
4063                 return -EIO;
4064
4065         memcpy(&scbval.ea, params->mac, ETH_ALEN);
4066         scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
4067         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
4068                                      &scbval, sizeof(scbval));
4069         if (err)
4070                 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
4071
4072         brcmf_dbg(TRACE, "Exit\n");
4073         return err;
4074 }
4075
4076
4077 static void
4078 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
4079                                    struct wireless_dev *wdev,
4080                                    u16 frame_type, bool reg)
4081 {
4082         struct brcmf_cfg80211_vif *vif;
4083         u16 mgmt_type;
4084
4085         brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
4086
4087         mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
4088         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4089         if (reg)
4090                 vif->mgmt_rx_reg |= BIT(mgmt_type);
4091         else
4092                 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
4093 }
4094
4095
4096 static int
4097 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
4098                        struct cfg80211_mgmt_tx_params *params, u64 *cookie)
4099 {
4100         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4101         struct ieee80211_channel *chan = params->chan;
4102         const u8 *buf = params->buf;
4103         size_t len = params->len;
4104         const struct ieee80211_mgmt *mgmt;
4105         struct brcmf_cfg80211_vif *vif;
4106         s32 err = 0;
4107         s32 ie_offset;
4108         s32 ie_len;
4109         struct brcmf_fil_action_frame_le *action_frame;
4110         struct brcmf_fil_af_params_le *af_params;
4111         bool ack;
4112         s32 chan_nr;
4113         u32 freq;
4114
4115         brcmf_dbg(TRACE, "Enter\n");
4116
4117         *cookie = 0;
4118
4119         mgmt = (const struct ieee80211_mgmt *)buf;
4120
4121         if (!ieee80211_is_mgmt(mgmt->frame_control)) {
4122                 brcmf_err("Driver only allows MGMT packet type\n");
4123                 return -EPERM;
4124         }
4125
4126         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4127
4128         if (ieee80211_is_probe_resp(mgmt->frame_control)) {
4129                 /* Right now the only reason to get a probe response */
4130                 /* is for p2p listen response or for p2p GO from     */
4131                 /* wpa_supplicant. Unfortunately the probe is send   */
4132                 /* on primary ndev, while dongle wants it on the p2p */
4133                 /* vif. Since this is only reason for a probe        */
4134                 /* response to be sent, the vif is taken from cfg.   */
4135                 /* If ever desired to send proberesp for non p2p     */
4136                 /* response then data should be checked for          */
4137                 /* "DIRECT-". Note in future supplicant will take    */
4138                 /* dedicated p2p wdev to do this and then this 'hack'*/
4139                 /* is not needed anymore.                            */
4140                 ie_offset =  DOT11_MGMT_HDR_LEN +
4141                              DOT11_BCN_PRB_FIXED_LEN;
4142                 ie_len = len - ie_offset;
4143                 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
4144                         vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4145                 err = brcmf_vif_set_mgmt_ie(vif,
4146                                             BRCMF_VNDR_IE_PRBRSP_FLAG,
4147                                             &buf[ie_offset],
4148                                             ie_len);
4149                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
4150                                         GFP_KERNEL);
4151         } else if (ieee80211_is_action(mgmt->frame_control)) {
4152                 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
4153                 if (af_params == NULL) {
4154                         brcmf_err("unable to allocate frame\n");
4155                         err = -ENOMEM;
4156                         goto exit;
4157                 }
4158                 action_frame = &af_params->action_frame;
4159                 /* Add the packet Id */
4160                 action_frame->packet_id = cpu_to_le32(*cookie);
4161                 /* Add BSSID */
4162                 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
4163                 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
4164                 /* Add the length exepted for 802.11 header  */
4165                 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
4166                 /* Add the channel. Use the one specified as parameter if any or
4167                  * the current one (got from the firmware) otherwise
4168                  */
4169                 if (chan)
4170                         freq = chan->center_freq;
4171                 else
4172                         brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
4173                                               &freq);
4174                 chan_nr = ieee80211_frequency_to_channel(freq);
4175                 af_params->channel = cpu_to_le32(chan_nr);
4176
4177                 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4178                        le16_to_cpu(action_frame->len));
4179
4180                 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4181                           *cookie, le16_to_cpu(action_frame->len), freq);
4182
4183                 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
4184                                                   af_params);
4185
4186                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4187                                         GFP_KERNEL);
4188                 kfree(af_params);
4189         } else {
4190                 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4191                 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
4192         }
4193
4194 exit:
4195         return err;
4196 }
4197
4198
4199 static int
4200 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4201                                         struct wireless_dev *wdev,
4202                                         u64 cookie)
4203 {
4204         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4205         struct brcmf_cfg80211_vif *vif;
4206         int err = 0;
4207
4208         brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4209
4210         vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4211         if (vif == NULL) {
4212                 brcmf_err("No p2p device available for probe response\n");
4213                 err = -ENODEV;
4214                 goto exit;
4215         }
4216         brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4217 exit:
4218         return err;
4219 }
4220
4221 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
4222                                            struct wireless_dev *wdev,
4223                                            enum nl80211_crit_proto_id proto,
4224                                            u16 duration)
4225 {
4226         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4227         struct brcmf_cfg80211_vif *vif;
4228
4229         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4230
4231         /* only DHCP support for now */
4232         if (proto != NL80211_CRIT_PROTO_DHCP)
4233                 return -EINVAL;
4234
4235         /* suppress and abort scanning */
4236         set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4237         brcmf_abort_scanning(cfg);
4238
4239         return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
4240 }
4241
4242 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
4243                                            struct wireless_dev *wdev)
4244 {
4245         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4246         struct brcmf_cfg80211_vif *vif;
4247
4248         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4249
4250         brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
4251         clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4252 }
4253
4254 static s32
4255 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp,
4256                              const struct brcmf_event_msg *e, void *data)
4257 {
4258         switch (e->reason) {
4259         case BRCMF_E_REASON_TDLS_PEER_DISCOVERED:
4260                 brcmf_dbg(TRACE, "TDLS Peer Discovered\n");
4261                 break;
4262         case BRCMF_E_REASON_TDLS_PEER_CONNECTED:
4263                 brcmf_dbg(TRACE, "TDLS Peer Connected\n");
4264                 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4265                 break;
4266         case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED:
4267                 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n");
4268                 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4269                 break;
4270         }
4271
4272         return 0;
4273 }
4274
4275 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)
4276 {
4277         int ret;
4278
4279         switch (oper) {
4280         case NL80211_TDLS_DISCOVERY_REQ:
4281                 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY;
4282                 break;
4283         case NL80211_TDLS_SETUP:
4284                 ret = BRCMF_TDLS_MANUAL_EP_CREATE;
4285                 break;
4286         case NL80211_TDLS_TEARDOWN:
4287                 ret = BRCMF_TDLS_MANUAL_EP_DELETE;
4288                 break;
4289         default:
4290                 brcmf_err("unsupported operation: %d\n", oper);
4291                 ret = -EOPNOTSUPP;
4292         }
4293         return ret;
4294 }
4295
4296 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy,
4297                                     struct net_device *ndev, const u8 *peer,
4298                                     enum nl80211_tdls_operation oper)
4299 {
4300         struct brcmf_if *ifp;
4301         struct brcmf_tdls_iovar_le info;
4302         int ret = 0;
4303
4304         ret = brcmf_convert_nl80211_tdls_oper(oper);
4305         if (ret < 0)
4306                 return ret;
4307
4308         ifp = netdev_priv(ndev);
4309         memset(&info, 0, sizeof(info));
4310         info.mode = (u8)ret;
4311         if (peer)
4312                 memcpy(info.ea, peer, ETH_ALEN);
4313
4314         ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint",
4315                                        &info, sizeof(info));
4316         if (ret < 0)
4317                 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret);
4318
4319         return ret;
4320 }
4321
4322 static struct cfg80211_ops wl_cfg80211_ops = {
4323         .add_virtual_intf = brcmf_cfg80211_add_iface,
4324         .del_virtual_intf = brcmf_cfg80211_del_iface,
4325         .change_virtual_intf = brcmf_cfg80211_change_iface,
4326         .scan = brcmf_cfg80211_scan,
4327         .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
4328         .join_ibss = brcmf_cfg80211_join_ibss,
4329         .leave_ibss = brcmf_cfg80211_leave_ibss,
4330         .get_station = brcmf_cfg80211_get_station,
4331         .set_tx_power = brcmf_cfg80211_set_tx_power,
4332         .get_tx_power = brcmf_cfg80211_get_tx_power,
4333         .add_key = brcmf_cfg80211_add_key,
4334         .del_key = brcmf_cfg80211_del_key,
4335         .get_key = brcmf_cfg80211_get_key,
4336         .set_default_key = brcmf_cfg80211_config_default_key,
4337         .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
4338         .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
4339         .connect = brcmf_cfg80211_connect,
4340         .disconnect = brcmf_cfg80211_disconnect,
4341         .suspend = brcmf_cfg80211_suspend,
4342         .resume = brcmf_cfg80211_resume,
4343         .set_pmksa = brcmf_cfg80211_set_pmksa,
4344         .del_pmksa = brcmf_cfg80211_del_pmksa,
4345         .flush_pmksa = brcmf_cfg80211_flush_pmksa,
4346         .start_ap = brcmf_cfg80211_start_ap,
4347         .stop_ap = brcmf_cfg80211_stop_ap,
4348         .change_beacon = brcmf_cfg80211_change_beacon,
4349         .del_station = brcmf_cfg80211_del_station,
4350         .sched_scan_start = brcmf_cfg80211_sched_scan_start,
4351         .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
4352         .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
4353         .mgmt_tx = brcmf_cfg80211_mgmt_tx,
4354         .remain_on_channel = brcmf_p2p_remain_on_channel,
4355         .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
4356         .start_p2p_device = brcmf_p2p_start_device,
4357         .stop_p2p_device = brcmf_p2p_stop_device,
4358         .crit_proto_start = brcmf_cfg80211_crit_proto_start,
4359         .crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
4360         .tdls_oper = brcmf_cfg80211_tdls_oper,
4361 };
4362
4363 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4364                                            enum nl80211_iftype type,
4365                                            bool pm_block)
4366 {
4367         struct brcmf_cfg80211_vif *vif;
4368
4369         brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
4370                   sizeof(*vif));
4371         vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4372         if (!vif)
4373                 return ERR_PTR(-ENOMEM);
4374
4375         vif->wdev.wiphy = cfg->wiphy;
4376         vif->wdev.iftype = type;
4377
4378         vif->pm_block = pm_block;
4379         vif->roam_off = -1;
4380
4381         brcmf_init_prof(&vif->profile);
4382
4383         list_add_tail(&vif->list, &cfg->vif_list);
4384         return vif;
4385 }
4386
4387 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
4388 {
4389         list_del(&vif->list);
4390         kfree(vif);
4391 }
4392
4393 void brcmf_cfg80211_free_netdev(struct net_device *ndev)
4394 {
4395         struct brcmf_cfg80211_vif *vif;
4396         struct brcmf_if *ifp;
4397
4398         ifp = netdev_priv(ndev);
4399         vif = ifp->vif;
4400
4401         brcmf_free_vif(vif);
4402         free_netdev(ndev);
4403 }
4404
4405 static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
4406 {
4407         u32 event = e->event_code;
4408         u32 status = e->status;
4409
4410         if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4411                 brcmf_dbg(CONN, "Processing set ssid\n");
4412                 return true;
4413         }
4414
4415         return false;
4416 }
4417
4418 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
4419 {
4420         u32 event = e->event_code;
4421         u16 flags = e->flags;
4422
4423         if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) ||
4424             (event == BRCMF_E_DISASSOC_IND) ||
4425             ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) {
4426                 brcmf_dbg(CONN, "Processing link down\n");
4427                 return true;
4428         }
4429         return false;
4430 }
4431
4432 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4433                                const struct brcmf_event_msg *e)
4434 {
4435         u32 event = e->event_code;
4436         u32 status = e->status;
4437
4438         if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4439                 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
4440                           e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
4441                 return true;
4442         }
4443
4444         if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4445                 brcmf_dbg(CONN, "Processing connecting & no network found\n");
4446                 return true;
4447         }
4448
4449         return false;
4450 }
4451
4452 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4453 {
4454         struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4455
4456         kfree(conn_info->req_ie);
4457         conn_info->req_ie = NULL;
4458         conn_info->req_ie_len = 0;
4459         kfree(conn_info->resp_ie);
4460         conn_info->resp_ie = NULL;
4461         conn_info->resp_ie_len = 0;
4462 }
4463
4464 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
4465                                struct brcmf_if *ifp)
4466 {
4467         struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4468         struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4469         u32 req_len;
4470         u32 resp_len;
4471         s32 err = 0;
4472
4473         brcmf_clear_assoc_ies(cfg);
4474
4475         err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4476                                        cfg->extra_buf, WL_ASSOC_INFO_MAX);
4477         if (err) {
4478                 brcmf_err("could not get assoc info (%d)\n", err);
4479                 return err;
4480         }
4481         assoc_info =
4482                 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4483         req_len = le32_to_cpu(assoc_info->req_len);
4484         resp_len = le32_to_cpu(assoc_info->resp_len);
4485         if (req_len) {
4486                 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4487                                                cfg->extra_buf,
4488                                                WL_ASSOC_INFO_MAX);
4489                 if (err) {
4490                         brcmf_err("could not get assoc req (%d)\n", err);
4491                         return err;
4492                 }
4493                 conn_info->req_ie_len = req_len;
4494                 conn_info->req_ie =
4495                     kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4496                             GFP_KERNEL);
4497         } else {
4498                 conn_info->req_ie_len = 0;
4499                 conn_info->req_ie = NULL;
4500         }
4501         if (resp_len) {
4502                 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4503                                                cfg->extra_buf,
4504                                                WL_ASSOC_INFO_MAX);
4505                 if (err) {
4506                         brcmf_err("could not get assoc resp (%d)\n", err);
4507                         return err;
4508                 }
4509                 conn_info->resp_ie_len = resp_len;
4510                 conn_info->resp_ie =
4511                     kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4512                             GFP_KERNEL);
4513         } else {
4514                 conn_info->resp_ie_len = 0;
4515                 conn_info->resp_ie = NULL;
4516         }
4517         brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
4518                   conn_info->req_ie_len, conn_info->resp_ie_len);
4519
4520         return err;
4521 }
4522
4523 static s32
4524 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4525                        struct net_device *ndev,
4526                        const struct brcmf_event_msg *e)
4527 {
4528         struct brcmf_if *ifp = netdev_priv(ndev);
4529         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4530         struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4531         struct wiphy *wiphy = cfg_to_wiphy(cfg);
4532         struct ieee80211_channel *notify_channel = NULL;
4533         struct ieee80211_supported_band *band;
4534         struct brcmf_bss_info_le *bi;
4535         struct brcmu_chan ch;
4536         u32 freq;
4537         s32 err = 0;
4538         u8 *buf;
4539
4540         brcmf_dbg(TRACE, "Enter\n");
4541
4542         brcmf_get_assoc_ies(cfg, ifp);
4543         memcpy(profile->bssid, e->addr, ETH_ALEN);
4544         brcmf_update_bss_info(cfg, ifp);
4545
4546         buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4547         if (buf == NULL) {
4548                 err = -ENOMEM;
4549                 goto done;
4550         }
4551
4552         /* data sent to dongle has to be little endian */
4553         *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4554         err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4555                                      buf, WL_BSS_INFO_MAX);
4556
4557         if (err)
4558                 goto done;
4559
4560         bi = (struct brcmf_bss_info_le *)(buf + 4);
4561         ch.chspec = le16_to_cpu(bi->chanspec);
4562         cfg->d11inf.decchspec(&ch);
4563
4564         if (ch.band == BRCMU_CHAN_BAND_2G)
4565                 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4566         else
4567                 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4568
4569         freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
4570         notify_channel = ieee80211_get_channel(wiphy, freq);
4571
4572 done:
4573         kfree(buf);
4574         cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4575                         conn_info->req_ie, conn_info->req_ie_len,
4576                         conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4577         brcmf_dbg(CONN, "Report roaming result\n");
4578
4579         set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4580         brcmf_dbg(TRACE, "Exit\n");
4581         return err;
4582 }
4583
4584 static s32
4585 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4586                        struct net_device *ndev, const struct brcmf_event_msg *e,
4587                        bool completed)
4588 {
4589         struct brcmf_if *ifp = netdev_priv(ndev);
4590         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4591         struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4592
4593         brcmf_dbg(TRACE, "Enter\n");
4594
4595         if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4596                                &ifp->vif->sme_state)) {
4597                 if (completed) {
4598                         brcmf_get_assoc_ies(cfg, ifp);
4599                         memcpy(profile->bssid, e->addr, ETH_ALEN);
4600                         brcmf_update_bss_info(cfg, ifp);
4601                         set_bit(BRCMF_VIF_STATUS_CONNECTED,
4602                                 &ifp->vif->sme_state);
4603                 }
4604                 cfg80211_connect_result(ndev,
4605                                         (u8 *)profile->bssid,
4606                                         conn_info->req_ie,
4607                                         conn_info->req_ie_len,
4608                                         conn_info->resp_ie,
4609                                         conn_info->resp_ie_len,
4610                                         completed ? WLAN_STATUS_SUCCESS :
4611                                                     WLAN_STATUS_AUTH_TIMEOUT,
4612                                         GFP_KERNEL);
4613                 brcmf_dbg(CONN, "Report connect result - connection %s\n",
4614                           completed ? "succeeded" : "failed");
4615         }
4616         brcmf_dbg(TRACE, "Exit\n");
4617         return 0;
4618 }
4619
4620 static s32
4621 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4622                                struct net_device *ndev,
4623                                const struct brcmf_event_msg *e, void *data)
4624 {
4625         static int generation;
4626         u32 event = e->event_code;
4627         u32 reason = e->reason;
4628         struct station_info sinfo;
4629
4630         brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
4631         if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
4632             ndev != cfg_to_ndev(cfg)) {
4633                 brcmf_dbg(CONN, "AP mode link down\n");
4634                 complete(&cfg->vif_disabled);
4635                 return 0;
4636         }
4637
4638         if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4639             (reason == BRCMF_E_STATUS_SUCCESS)) {
4640                 memset(&sinfo, 0, sizeof(sinfo));
4641                 sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
4642                 if (!data) {
4643                         brcmf_err("No IEs present in ASSOC/REASSOC_IND");
4644                         return -EINVAL;
4645                 }
4646                 sinfo.assoc_req_ies = data;
4647                 sinfo.assoc_req_ies_len = e->datalen;
4648                 generation++;
4649                 sinfo.generation = generation;
4650                 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
4651         } else if ((event == BRCMF_E_DISASSOC_IND) ||
4652                    (event == BRCMF_E_DEAUTH_IND) ||
4653                    (event == BRCMF_E_DEAUTH)) {
4654                 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
4655         }
4656         return 0;
4657 }
4658
4659 static s32
4660 brcmf_notify_connect_status(struct brcmf_if *ifp,
4661                             const struct brcmf_event_msg *e, void *data)
4662 {
4663         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4664         struct net_device *ndev = ifp->ndev;
4665         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4666         struct ieee80211_channel *chan;
4667         s32 err = 0;
4668
4669         if ((e->event_code == BRCMF_E_DEAUTH) ||
4670             (e->event_code == BRCMF_E_DEAUTH_IND) ||
4671             (e->event_code == BRCMF_E_DISASSOC_IND) ||
4672             ((e->event_code == BRCMF_E_LINK) && (!e->flags))) {
4673                 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4674         }
4675
4676         if (brcmf_is_apmode(ifp->vif)) {
4677                 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4678         } else if (brcmf_is_linkup(e)) {
4679                 brcmf_dbg(CONN, "Linkup\n");
4680                 if (brcmf_is_ibssmode(ifp->vif)) {
4681                         chan = ieee80211_get_channel(cfg->wiphy, cfg->channel);
4682                         memcpy(profile->bssid, e->addr, ETH_ALEN);
4683                         wl_inform_ibss(cfg, ndev, e->addr);
4684                         cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL);
4685                         clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4686                                   &ifp->vif->sme_state);
4687                         set_bit(BRCMF_VIF_STATUS_CONNECTED,
4688                                 &ifp->vif->sme_state);
4689                 } else
4690                         brcmf_bss_connect_done(cfg, ndev, e, true);
4691         } else if (brcmf_is_linkdown(e)) {
4692                 brcmf_dbg(CONN, "Linkdown\n");
4693                 if (!brcmf_is_ibssmode(ifp->vif)) {
4694                         brcmf_bss_connect_done(cfg, ndev, e, false);
4695                 }
4696                 brcmf_link_down(ifp->vif);
4697                 brcmf_init_prof(ndev_to_prof(ndev));
4698                 if (ndev != cfg_to_ndev(cfg))
4699                         complete(&cfg->vif_disabled);
4700         } else if (brcmf_is_nonetwork(cfg, e)) {
4701                 if (brcmf_is_ibssmode(ifp->vif))
4702                         clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4703                                   &ifp->vif->sme_state);
4704                 else
4705                         brcmf_bss_connect_done(cfg, ndev, e, false);
4706         }
4707
4708         return err;
4709 }
4710
4711 static s32
4712 brcmf_notify_roaming_status(struct brcmf_if *ifp,
4713                             const struct brcmf_event_msg *e, void *data)
4714 {
4715         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4716         u32 event = e->event_code;
4717         u32 status = e->status;
4718
4719         if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4720                 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4721                         brcmf_bss_roaming_done(cfg, ifp->ndev, e);
4722                 else
4723                         brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
4724         }
4725
4726         return 0;
4727 }
4728
4729 static s32
4730 brcmf_notify_mic_status(struct brcmf_if *ifp,
4731                         const struct brcmf_event_msg *e, void *data)
4732 {
4733         u16 flags = e->flags;
4734         enum nl80211_key_type key_type;
4735
4736         if (flags & BRCMF_EVENT_MSG_GROUP)
4737                 key_type = NL80211_KEYTYPE_GROUP;
4738         else
4739                 key_type = NL80211_KEYTYPE_PAIRWISE;
4740
4741         cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
4742                                      NULL, GFP_KERNEL);
4743
4744         return 0;
4745 }
4746
4747 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
4748                                   const struct brcmf_event_msg *e, void *data)
4749 {
4750         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4751         struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
4752         struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
4753         struct brcmf_cfg80211_vif *vif;
4754
4755         brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n",
4756                   ifevent->action, ifevent->flags, ifevent->ifidx,
4757                   ifevent->bssidx);
4758
4759         mutex_lock(&event->vif_event_lock);
4760         event->action = ifevent->action;
4761         vif = event->vif;
4762
4763         switch (ifevent->action) {
4764         case BRCMF_E_IF_ADD:
4765                 /* waiting process may have timed out */
4766                 if (!cfg->vif_event.vif) {
4767                         mutex_unlock(&event->vif_event_lock);
4768                         return -EBADF;
4769                 }
4770
4771                 ifp->vif = vif;
4772                 vif->ifp = ifp;
4773                 if (ifp->ndev) {
4774                         vif->wdev.netdev = ifp->ndev;
4775                         ifp->ndev->ieee80211_ptr = &vif->wdev;
4776                         SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
4777                 }
4778                 mutex_unlock(&event->vif_event_lock);
4779                 wake_up(&event->vif_wq);
4780                 return 0;
4781
4782         case BRCMF_E_IF_DEL:
4783                 mutex_unlock(&event->vif_event_lock);
4784                 /* event may not be upon user request */
4785                 if (brcmf_cfg80211_vif_event_armed(cfg))
4786                         wake_up(&event->vif_wq);
4787                 return 0;
4788
4789         case BRCMF_E_IF_CHANGE:
4790                 mutex_unlock(&event->vif_event_lock);
4791                 wake_up(&event->vif_wq);
4792                 return 0;
4793
4794         default:
4795                 mutex_unlock(&event->vif_event_lock);
4796                 break;
4797         }
4798         return -EINVAL;
4799 }
4800
4801 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
4802 {
4803         conf->frag_threshold = (u32)-1;
4804         conf->rts_threshold = (u32)-1;
4805         conf->retry_short = (u32)-1;
4806         conf->retry_long = (u32)-1;
4807         conf->tx_power = -1;
4808 }
4809
4810 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
4811 {
4812         brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
4813                             brcmf_notify_connect_status);
4814         brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
4815                             brcmf_notify_connect_status);
4816         brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
4817                             brcmf_notify_connect_status);
4818         brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
4819                             brcmf_notify_connect_status);
4820         brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
4821                             brcmf_notify_connect_status);
4822         brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
4823                             brcmf_notify_connect_status);
4824         brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
4825                             brcmf_notify_roaming_status);
4826         brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
4827                             brcmf_notify_mic_status);
4828         brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
4829                             brcmf_notify_connect_status);
4830         brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
4831                             brcmf_notify_sched_scan_results);
4832         brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
4833                             brcmf_notify_vif_event);
4834         brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
4835                             brcmf_p2p_notify_rx_mgmt_p2p_probereq);
4836         brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
4837                             brcmf_p2p_notify_listen_complete);
4838         brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
4839                             brcmf_p2p_notify_action_frame_rx);
4840         brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
4841                             brcmf_p2p_notify_action_tx_complete);
4842         brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
4843                             brcmf_p2p_notify_action_tx_complete);
4844 }
4845
4846 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
4847 {
4848         kfree(cfg->conf);
4849         cfg->conf = NULL;
4850         kfree(cfg->escan_ioctl_buf);
4851         cfg->escan_ioctl_buf = NULL;
4852         kfree(cfg->extra_buf);
4853         cfg->extra_buf = NULL;
4854         kfree(cfg->pmk_list);
4855         cfg->pmk_list = NULL;
4856 }
4857
4858 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
4859 {
4860         cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
4861         if (!cfg->conf)
4862                 goto init_priv_mem_out;
4863         cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
4864         if (!cfg->escan_ioctl_buf)
4865                 goto init_priv_mem_out;
4866         cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
4867         if (!cfg->extra_buf)
4868                 goto init_priv_mem_out;
4869         cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
4870         if (!cfg->pmk_list)
4871                 goto init_priv_mem_out;
4872
4873         return 0;
4874
4875 init_priv_mem_out:
4876         brcmf_deinit_priv_mem(cfg);
4877
4878         return -ENOMEM;
4879 }
4880
4881 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
4882 {
4883         s32 err = 0;
4884
4885         cfg->scan_request = NULL;
4886         cfg->pwr_save = true;
4887         cfg->active_scan = true;        /* we do active scan per default */
4888         cfg->dongle_up = false;         /* dongle is not up yet */
4889         err = brcmf_init_priv_mem(cfg);
4890         if (err)
4891                 return err;
4892         brcmf_register_event_handlers(cfg);
4893         mutex_init(&cfg->usr_sync);
4894         brcmf_init_escan(cfg);
4895         brcmf_init_conf(cfg->conf);
4896         init_completion(&cfg->vif_disabled);
4897         return err;
4898 }
4899
4900 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
4901 {
4902         cfg->dongle_up = false; /* dongle down */
4903         brcmf_abort_scanning(cfg);
4904         brcmf_deinit_priv_mem(cfg);
4905 }
4906
4907 static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
4908 {
4909         init_waitqueue_head(&event->vif_wq);
4910         mutex_init(&event->vif_event_lock);
4911 }
4912
4913 static s32
4914 brcmf_dongle_roam(struct brcmf_if *ifp, u32 bcn_timeout)
4915 {
4916         s32 err = 0;
4917         __le32 roamtrigger[2];
4918         __le32 roam_delta[2];
4919
4920         /*
4921          * Setup timeout if Beacons are lost and roam is
4922          * off to report link down
4923          */
4924         if (brcmf_roamoff) {
4925                 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
4926                 if (err) {
4927                         brcmf_err("bcn_timeout error (%d)\n", err);
4928                         goto dongle_rom_out;
4929                 }
4930         }
4931
4932         /*
4933          * Enable/Disable built-in roaming to allow supplicant
4934          * to take care of roaming
4935          */
4936         brcmf_dbg(INFO, "Internal Roaming = %s\n",
4937                   brcmf_roamoff ? "Off" : "On");
4938         err = brcmf_fil_iovar_int_set(ifp, "roam_off", !!(brcmf_roamoff));
4939         if (err) {
4940                 brcmf_err("roam_off error (%d)\n", err);
4941                 goto dongle_rom_out;
4942         }
4943
4944         roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
4945         roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
4946         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
4947                                      (void *)roamtrigger, sizeof(roamtrigger));
4948         if (err) {
4949                 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
4950                 goto dongle_rom_out;
4951         }
4952
4953         roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
4954         roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
4955         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
4956                                      (void *)roam_delta, sizeof(roam_delta));
4957         if (err) {
4958                 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
4959                 goto dongle_rom_out;
4960         }
4961
4962 dongle_rom_out:
4963         return err;
4964 }
4965
4966 static s32
4967 brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time,
4968                       s32 scan_unassoc_time, s32 scan_passive_time)
4969 {
4970         s32 err = 0;
4971
4972         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
4973                                     scan_assoc_time);
4974         if (err) {
4975                 if (err == -EOPNOTSUPP)
4976                         brcmf_dbg(INFO, "Scan assoc time is not supported\n");
4977                 else
4978                         brcmf_err("Scan assoc time error (%d)\n", err);
4979                 goto dongle_scantime_out;
4980         }
4981         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
4982                                     scan_unassoc_time);
4983         if (err) {
4984                 if (err == -EOPNOTSUPP)
4985                         brcmf_dbg(INFO, "Scan unassoc time is not supported\n");
4986                 else
4987                         brcmf_err("Scan unassoc time error (%d)\n", err);
4988                 goto dongle_scantime_out;
4989         }
4990
4991         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
4992                                     scan_passive_time);
4993         if (err) {
4994                 if (err == -EOPNOTSUPP)
4995                         brcmf_dbg(INFO, "Scan passive time is not supported\n");
4996                 else
4997                         brcmf_err("Scan passive time error (%d)\n", err);
4998                 goto dongle_scantime_out;
4999         }
5000
5001 dongle_scantime_out:
5002         return err;
5003 }
5004
5005 /* Filter the list of channels received from firmware counting only
5006  * the 20MHz channels. The wiphy band data only needs those which get
5007  * flagged to indicate if they can take part in higher bandwidth.
5008  */
5009 static void brcmf_count_20mhz_channels(struct brcmf_cfg80211_info *cfg,
5010                                        struct brcmf_chanspec_list *chlist,
5011                                        u32 chcnt[])
5012 {
5013         u32 total = le32_to_cpu(chlist->count);
5014         struct brcmu_chan ch;
5015         int i;
5016
5017         for (i = 0; i < total; i++) {
5018                 ch.chspec = (u16)le32_to_cpu(chlist->element[i]);
5019                 cfg->d11inf.decchspec(&ch);
5020
5021                 /* Firmware gives a ordered list. We skip non-20MHz
5022                  * channels is 2G. For 5G we can abort upon reaching
5023                  * a non-20MHz channel in the list.
5024                  */
5025                 if (ch.bw != BRCMU_CHAN_BW_20) {
5026                         if (ch.band == BRCMU_CHAN_BAND_5G)
5027                                 break;
5028                         else
5029                                 continue;
5030                 }
5031
5032                 if (ch.band == BRCMU_CHAN_BAND_2G)
5033                         chcnt[0] += 1;
5034                 else if (ch.band == BRCMU_CHAN_BAND_5G)
5035                         chcnt[1] += 1;
5036         }
5037 }
5038
5039 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel,
5040                                            struct brcmu_chan *ch)
5041 {
5042         u32 ht40_flag;
5043
5044         ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40;
5045         if (ch->sb == BRCMU_CHAN_SB_U) {
5046                 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5047                         channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5048                 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS;
5049         } else {
5050                 /* It should be one of
5051                  * IEEE80211_CHAN_NO_HT40 or
5052                  * IEEE80211_CHAN_NO_HT40PLUS
5053                  */
5054                 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
5055                 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
5056                         channel->flags |= IEEE80211_CHAN_NO_HT40MINUS;
5057         }
5058 }
5059
5060 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
5061                                     u32 bw_cap[])
5062 {
5063         struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5064         struct ieee80211_supported_band *band;
5065         struct ieee80211_channel *channel;
5066         struct wiphy *wiphy;
5067         struct brcmf_chanspec_list *list;
5068         struct brcmu_chan ch;
5069         int err;
5070         u8 *pbuf;
5071         u32 i, j;
5072         u32 total;
5073         u32 chaninfo;
5074         u32 chcnt[2] = { 0, 0 };
5075         u32 index;
5076
5077         pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5078
5079         if (pbuf == NULL)
5080                 return -ENOMEM;
5081
5082         list = (struct brcmf_chanspec_list *)pbuf;
5083
5084         err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5085                                        BRCMF_DCMD_MEDLEN);
5086         if (err) {
5087                 brcmf_err("get chanspecs error (%d)\n", err);
5088                 goto fail_pbuf;
5089         }
5090
5091         brcmf_count_20mhz_channels(cfg, list, chcnt);
5092         wiphy = cfg_to_wiphy(cfg);
5093         if (chcnt[0]) {
5094                 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz),
5095                                GFP_KERNEL);
5096                 if (band == NULL) {
5097                         err = -ENOMEM;
5098                         goto fail_pbuf;
5099                 }
5100                 band->channels = kcalloc(chcnt[0], sizeof(*channel),
5101                                          GFP_KERNEL);
5102                 if (band->channels == NULL) {
5103                         kfree(band);
5104                         err = -ENOMEM;
5105                         goto fail_pbuf;
5106                 }
5107                 band->n_channels = 0;
5108                 wiphy->bands[IEEE80211_BAND_2GHZ] = band;
5109         }
5110         if (chcnt[1]) {
5111                 band = kmemdup(&__wl_band_5ghz_a, sizeof(__wl_band_5ghz_a),
5112                                GFP_KERNEL);
5113                 if (band == NULL) {
5114                         err = -ENOMEM;
5115                         goto fail_band2g;
5116                 }
5117                 band->channels = kcalloc(chcnt[1], sizeof(*channel),
5118                                          GFP_KERNEL);
5119                 if (band->channels == NULL) {
5120                         kfree(band);
5121                         err = -ENOMEM;
5122                         goto fail_band2g;
5123                 }
5124                 band->n_channels = 0;
5125                 wiphy->bands[IEEE80211_BAND_5GHZ] = band;
5126         }
5127
5128         total = le32_to_cpu(list->count);
5129         for (i = 0; i < total; i++) {
5130                 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5131                 cfg->d11inf.decchspec(&ch);
5132
5133                 if (ch.band == BRCMU_CHAN_BAND_2G) {
5134                         band = wiphy->bands[IEEE80211_BAND_2GHZ];
5135                 } else if (ch.band == BRCMU_CHAN_BAND_5G) {
5136                         band = wiphy->bands[IEEE80211_BAND_5GHZ];
5137                 } else {
5138                         brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec);
5139                         continue;
5140                 }
5141                 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) &&
5142                     ch.bw == BRCMU_CHAN_BW_40)
5143                         continue;
5144                 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) &&
5145                     ch.bw == BRCMU_CHAN_BW_80)
5146                         continue;
5147
5148                 channel = band->channels;
5149                 index = band->n_channels;
5150                 for (j = 0; j < band->n_channels; j++) {
5151                         if (channel[j].hw_value == ch.chnum) {
5152                                 index = j;
5153                                 break;
5154                         }
5155                 }
5156                 channel[index].center_freq =
5157                         ieee80211_channel_to_frequency(ch.chnum, band->band);
5158                 channel[index].hw_value = ch.chnum;
5159
5160                 /* assuming the chanspecs order is HT20,
5161                  * HT40 upper, HT40 lower, and VHT80.
5162                  */
5163                 if (ch.bw == BRCMU_CHAN_BW_80) {
5164                         channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ;
5165                 } else if (ch.bw == BRCMU_CHAN_BW_40) {
5166                         brcmf_update_bw40_channel_flag(&channel[index], &ch);
5167                 } else {
5168                         /* disable other bandwidths for now as mentioned
5169                          * order assure they are enabled for subsequent
5170                          * chanspecs.
5171                          */
5172                         channel[index].flags = IEEE80211_CHAN_NO_HT40 |
5173                                                IEEE80211_CHAN_NO_80MHZ;
5174                         ch.bw = BRCMU_CHAN_BW_20;
5175                         cfg->d11inf.encchspec(&ch);
5176                         chaninfo = ch.chspec;
5177                         err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info",
5178                                                        &chaninfo);
5179                         if (!err) {
5180                                 if (chaninfo & WL_CHAN_RADAR)
5181                                         channel[index].flags |=
5182                                                 (IEEE80211_CHAN_RADAR |
5183                                                  IEEE80211_CHAN_NO_IR);
5184                                 if (chaninfo & WL_CHAN_PASSIVE)
5185                                         channel[index].flags |=
5186                                                 IEEE80211_CHAN_NO_IR;
5187                         }
5188                 }
5189                 if (index == band->n_channels)
5190                         band->n_channels++;
5191         }
5192         kfree(pbuf);
5193         return 0;
5194
5195 fail_band2g:
5196         kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5197         kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5198         wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
5199 fail_pbuf:
5200         kfree(pbuf);
5201         return err;
5202 }
5203
5204 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg)
5205 {
5206         struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5207         struct ieee80211_supported_band *band;
5208         struct brcmf_fil_bwcap_le band_bwcap;
5209         struct brcmf_chanspec_list *list;
5210         u8 *pbuf;
5211         u32 val;
5212         int err;
5213         struct brcmu_chan ch;
5214         u32 num_chan;
5215         int i, j;
5216
5217         /* verify support for bw_cap command */
5218         val = WLC_BAND_5G;
5219         err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val);
5220
5221         if (!err) {
5222                 /* only set 2G bandwidth using bw_cap command */
5223                 band_bwcap.band = cpu_to_le32(WLC_BAND_2G);
5224                 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ);
5225                 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap,
5226                                                sizeof(band_bwcap));
5227         } else {
5228                 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n");
5229                 val = WLC_N_BW_40ALL;
5230                 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val);
5231         }
5232
5233         if (!err) {
5234                 /* update channel info in 2G band */
5235                 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5236
5237                 if (pbuf == NULL)
5238                         return -ENOMEM;
5239
5240                 ch.band = BRCMU_CHAN_BAND_2G;
5241                 ch.bw = BRCMU_CHAN_BW_40;
5242                 ch.sb = BRCMU_CHAN_SB_NONE;
5243                 ch.chnum = 0;
5244                 cfg->d11inf.encchspec(&ch);
5245
5246                 /* pass encoded chanspec in query */
5247                 *(__le16 *)pbuf = cpu_to_le16(ch.chspec);
5248
5249                 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5250                                                BRCMF_DCMD_MEDLEN);
5251                 if (err) {
5252                         brcmf_err("get chanspecs error (%d)\n", err);
5253                         kfree(pbuf);
5254                         return err;
5255                 }
5256
5257                 band = cfg_to_wiphy(cfg)->bands[IEEE80211_BAND_2GHZ];
5258                 list = (struct brcmf_chanspec_list *)pbuf;
5259                 num_chan = le32_to_cpu(list->count);
5260                 for (i = 0; i < num_chan; i++) {
5261                         ch.chspec = (u16)le32_to_cpu(list->element[i]);
5262                         cfg->d11inf.decchspec(&ch);
5263                         if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G))
5264                                 continue;
5265                         if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40))
5266                                 continue;
5267                         for (j = 0; j < band->n_channels; j++) {
5268                                 if (band->channels[j].hw_value == ch.chnum)
5269                                         break;
5270                         }
5271                         if (WARN_ON(j == band->n_channels))
5272                                 continue;
5273
5274                         brcmf_update_bw40_channel_flag(&band->channels[j], &ch);
5275                 }
5276                 kfree(pbuf);
5277         }
5278         return err;
5279 }
5280
5281 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[])
5282 {
5283         u32 band, mimo_bwcap;
5284         int err;
5285
5286         band = WLC_BAND_2G;
5287         err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5288         if (!err) {
5289                 bw_cap[IEEE80211_BAND_2GHZ] = band;
5290                 band = WLC_BAND_5G;
5291                 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5292                 if (!err) {
5293                         bw_cap[IEEE80211_BAND_5GHZ] = band;
5294                         return;
5295                 }
5296                 WARN_ON(1);
5297                 return;
5298         }
5299         brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n");
5300         mimo_bwcap = 0;
5301         err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap);
5302         if (err)
5303                 /* assume 20MHz if firmware does not give a clue */
5304                 mimo_bwcap = WLC_N_BW_20ALL;
5305
5306         switch (mimo_bwcap) {
5307         case WLC_N_BW_40ALL:
5308                 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT;
5309                 /* fall-thru */
5310         case WLC_N_BW_20IN2G_40IN5G:
5311                 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT;
5312                 /* fall-thru */
5313         case WLC_N_BW_20ALL:
5314                 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT;
5315                 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT;
5316                 break;
5317         default:
5318                 brcmf_err("invalid mimo_bw_cap value\n");
5319         }
5320 }
5321
5322 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band,
5323                                 u32 bw_cap[2], u32 nchain)
5324 {
5325         band->ht_cap.ht_supported = true;
5326         if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) {
5327                 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
5328                 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5329         }
5330         band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
5331         band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
5332         band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
5333         band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
5334         memset(band->ht_cap.mcs.rx_mask, 0xff, nchain);
5335         band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
5336 }
5337
5338 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp)
5339 {
5340         u16 mcs_map;
5341         int i;
5342
5343         for (i = 0, mcs_map = 0xFFFF; i < nchain; i++)
5344                 mcs_map = (mcs_map << 2) | supp;
5345
5346         return cpu_to_le16(mcs_map);
5347 }
5348
5349 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band,
5350                                  u32 bw_cap[2], u32 nchain)
5351 {
5352         __le16 mcs_map;
5353
5354         /* not allowed in 2.4G band */
5355         if (band->band == IEEE80211_BAND_2GHZ)
5356                 return;
5357
5358         band->vht_cap.vht_supported = true;
5359         /* 80MHz is mandatory */
5360         band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80;
5361         if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) {
5362                 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
5363                 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160;
5364         }
5365         /* all support 256-QAM */
5366         mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9);
5367         band->vht_cap.vht_mcs.rx_mcs_map = mcs_map;
5368         band->vht_cap.vht_mcs.tx_mcs_map = mcs_map;
5369 }
5370
5371 static int brcmf_setup_wiphybands(struct wiphy *wiphy)
5372 {
5373         struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5374         struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5375         u32 nmode = 0;
5376         u32 vhtmode = 0;
5377         u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT };
5378         u32 rxchain;
5379         u32 nchain;
5380         int err;
5381         s32 i;
5382         struct ieee80211_supported_band *band;
5383
5384         (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode);
5385         err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
5386         if (err) {
5387                 brcmf_err("nmode error (%d)\n", err);
5388         } else {
5389                 brcmf_get_bwcap(ifp, bw_cap);
5390         }
5391         brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n",
5392                   nmode, vhtmode, bw_cap[IEEE80211_BAND_2GHZ],
5393                   bw_cap[IEEE80211_BAND_5GHZ]);
5394
5395         err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain);
5396         if (err) {
5397                 brcmf_err("rxchain error (%d)\n", err);
5398                 nchain = 1;
5399         } else {
5400                 for (nchain = 0; rxchain; nchain++)
5401                         rxchain = rxchain & (rxchain - 1);
5402         }
5403         brcmf_dbg(INFO, "nchain=%d\n", nchain);
5404
5405         err = brcmf_construct_chaninfo(cfg, bw_cap);
5406         if (err) {
5407                 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err);
5408                 return err;
5409         }
5410
5411         wiphy = cfg_to_wiphy(cfg);
5412         for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) {
5413                 band = wiphy->bands[i];
5414                 if (band == NULL)
5415                         continue;
5416
5417                 if (nmode)
5418                         brcmf_update_ht_cap(band, bw_cap, nchain);
5419                 if (vhtmode)
5420                         brcmf_update_vht_cap(band, bw_cap, nchain);
5421         }
5422
5423         return 0;
5424 }
5425
5426 static const struct ieee80211_iface_limit brcmf_iface_limits[] = {
5427         {
5428                 .max = 2,
5429                 .types = BIT(NL80211_IFTYPE_STATION) |
5430                          BIT(NL80211_IFTYPE_ADHOC) |
5431                          BIT(NL80211_IFTYPE_AP)
5432         },
5433         {
5434                 .max = 1,
5435                 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5436                          BIT(NL80211_IFTYPE_P2P_GO)
5437         },
5438         {
5439                 .max = 1,
5440                 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5441         }
5442 };
5443 static struct ieee80211_iface_combination brcmf_iface_combos[] = {
5444         {
5445                  .max_interfaces = BRCMF_IFACE_MAX_CNT,
5446                  .num_different_channels = 1,
5447                  .n_limits = ARRAY_SIZE(brcmf_iface_limits),
5448                  .limits = brcmf_iface_limits
5449         }
5450 };
5451
5452 static const struct ieee80211_txrx_stypes
5453 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
5454         [NL80211_IFTYPE_STATION] = {
5455                 .tx = 0xffff,
5456                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5457                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5458         },
5459         [NL80211_IFTYPE_P2P_CLIENT] = {
5460                 .tx = 0xffff,
5461                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5462                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5463         },
5464         [NL80211_IFTYPE_P2P_GO] = {
5465                 .tx = 0xffff,
5466                 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
5467                       BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
5468                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
5469                       BIT(IEEE80211_STYPE_DISASSOC >> 4) |
5470                       BIT(IEEE80211_STYPE_AUTH >> 4) |
5471                       BIT(IEEE80211_STYPE_DEAUTH >> 4) |
5472                       BIT(IEEE80211_STYPE_ACTION >> 4)
5473         },
5474         [NL80211_IFTYPE_P2P_DEVICE] = {
5475                 .tx = 0xffff,
5476                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5477                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5478         }
5479 };
5480
5481 static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
5482 {
5483         /* scheduled scan settings */
5484         wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
5485         wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
5486         wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5487         wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
5488 }
5489
5490 #ifdef CONFIG_PM
5491 static const struct wiphy_wowlan_support brcmf_wowlan_support = {
5492         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
5493         .n_patterns = BRCMF_WOWL_MAXPATTERNS,
5494         .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE,
5495         .pattern_min_len = 1,
5496         .max_pkt_offset = 1500,
5497 };
5498 #endif
5499
5500 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy)
5501 {
5502 #ifdef CONFIG_PM
5503         /* wowl settings */
5504         wiphy->wowlan = &brcmf_wowlan_support;
5505 #endif
5506 }
5507
5508 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
5509 {
5510         struct ieee80211_iface_combination ifc_combo;
5511         wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
5512         wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5513         wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
5514         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
5515                                  BIT(NL80211_IFTYPE_ADHOC) |
5516                                  BIT(NL80211_IFTYPE_AP) |
5517                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
5518                                  BIT(NL80211_IFTYPE_P2P_GO) |
5519                                  BIT(NL80211_IFTYPE_P2P_DEVICE);
5520         /* need VSDB firmware feature for concurrent channels */
5521         ifc_combo = brcmf_iface_combos[0];
5522         if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
5523                 ifc_combo.num_different_channels = 2;
5524         wiphy->iface_combinations = kmemdup(&ifc_combo,
5525                                             sizeof(ifc_combo),
5526                                             GFP_KERNEL);
5527         wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
5528         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
5529         wiphy->cipher_suites = __wl_cipher_suites;
5530         wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
5531         wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
5532                         WIPHY_FLAG_OFFCHAN_TX |
5533                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
5534                         WIPHY_FLAG_SUPPORTS_TDLS;
5535         if (!brcmf_roamoff)
5536                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
5537         wiphy->mgmt_stypes = brcmf_txrx_stypes;
5538         wiphy->max_remain_on_channel_duration = 5000;
5539         brcmf_wiphy_pno_params(wiphy);
5540
5541         /* vendor commands/events support */
5542         wiphy->vendor_commands = brcmf_vendor_cmds;
5543         wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
5544
5545         if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL))
5546                 brcmf_wiphy_wowl_params(wiphy);
5547
5548         return brcmf_setup_wiphybands(wiphy);
5549 }
5550
5551 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
5552 {
5553         struct net_device *ndev;
5554         struct wireless_dev *wdev;
5555         struct brcmf_if *ifp;
5556         s32 power_mode;
5557         s32 err = 0;
5558
5559         if (cfg->dongle_up)
5560                 return err;
5561
5562         ndev = cfg_to_ndev(cfg);
5563         wdev = ndev->ieee80211_ptr;
5564         ifp = netdev_priv(ndev);
5565
5566         /* make sure RF is ready for work */
5567         brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
5568
5569         brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME,
5570                               WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
5571
5572         power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
5573         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
5574         if (err)
5575                 goto default_conf_out;
5576         brcmf_dbg(INFO, "power save set to %s\n",
5577                   (power_mode ? "enabled" : "disabled"));
5578
5579         err = brcmf_dongle_roam(ifp, WL_BEACON_TIMEOUT);
5580         if (err)
5581                 goto default_conf_out;
5582         err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
5583                                           NULL, NULL);
5584         if (err)
5585                 goto default_conf_out;
5586
5587         brcmf_configure_arp_offload(ifp, true);
5588
5589         cfg->dongle_up = true;
5590 default_conf_out:
5591
5592         return err;
5593
5594 }
5595
5596 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
5597 {
5598         set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5599
5600         return brcmf_config_dongle(ifp->drvr->config);
5601 }
5602
5603 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
5604 {
5605         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5606
5607         /*
5608          * While going down, if associated with AP disassociate
5609          * from AP to save power
5610          */
5611         if (check_vif_up(ifp->vif)) {
5612                 brcmf_link_down(ifp->vif);
5613
5614                 /* Make sure WPA_Supplicant receives all the event
5615                    generated due to DISASSOC call to the fw to keep
5616                    the state fw and WPA_Supplicant state consistent
5617                  */
5618                 brcmf_delay(500);
5619         }
5620
5621         brcmf_abort_scanning(cfg);
5622         clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5623
5624         return 0;
5625 }
5626
5627 s32 brcmf_cfg80211_up(struct net_device *ndev)
5628 {
5629         struct brcmf_if *ifp = netdev_priv(ndev);
5630         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5631         s32 err = 0;
5632
5633         mutex_lock(&cfg->usr_sync);
5634         err = __brcmf_cfg80211_up(ifp);
5635         mutex_unlock(&cfg->usr_sync);
5636
5637         return err;
5638 }
5639
5640 s32 brcmf_cfg80211_down(struct net_device *ndev)
5641 {
5642         struct brcmf_if *ifp = netdev_priv(ndev);
5643         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5644         s32 err = 0;
5645
5646         mutex_lock(&cfg->usr_sync);
5647         err = __brcmf_cfg80211_down(ifp);
5648         mutex_unlock(&cfg->usr_sync);
5649
5650         return err;
5651 }
5652
5653 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
5654 {
5655         struct wireless_dev *wdev = &ifp->vif->wdev;
5656
5657         return wdev->iftype;
5658 }
5659
5660 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
5661                              unsigned long state)
5662 {
5663         struct brcmf_cfg80211_vif *vif;
5664
5665         list_for_each_entry(vif, &cfg->vif_list, list) {
5666                 if (test_bit(state, &vif->sme_state))
5667                         return true;
5668         }
5669         return false;
5670 }
5671
5672 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
5673                                     u8 action)
5674 {
5675         u8 evt_action;
5676
5677         mutex_lock(&event->vif_event_lock);
5678         evt_action = event->action;
5679         mutex_unlock(&event->vif_event_lock);
5680         return evt_action == action;
5681 }
5682
5683 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
5684                                   struct brcmf_cfg80211_vif *vif)
5685 {
5686         struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5687
5688         mutex_lock(&event->vif_event_lock);
5689         event->vif = vif;
5690         event->action = 0;
5691         mutex_unlock(&event->vif_event_lock);
5692 }
5693
5694 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
5695 {
5696         struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5697         bool armed;
5698
5699         mutex_lock(&event->vif_event_lock);
5700         armed = event->vif != NULL;
5701         mutex_unlock(&event->vif_event_lock);
5702
5703         return armed;
5704 }
5705 int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
5706                                           u8 action, ulong timeout)
5707 {
5708         struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5709
5710         return wait_event_timeout(event->vif_wq,
5711                                   vif_event_equals(event, action), timeout);
5712 }
5713
5714 static void brcmf_free_wiphy(struct wiphy *wiphy)
5715 {
5716         kfree(wiphy->iface_combinations);
5717         if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
5718                 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5719                 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5720         }
5721         if (wiphy->bands[IEEE80211_BAND_5GHZ]) {
5722                 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]->channels);
5723                 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]);
5724         }
5725         wiphy_free(wiphy);
5726 }
5727
5728 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
5729                                                   struct device *busdev)
5730 {
5731         struct net_device *ndev = drvr->iflist[0]->ndev;
5732         struct brcmf_cfg80211_info *cfg;
5733         struct wiphy *wiphy;
5734         struct brcmf_cfg80211_vif *vif;
5735         struct brcmf_if *ifp;
5736         s32 err = 0;
5737         s32 io_type;
5738         u16 *cap = NULL;
5739
5740         if (!ndev) {
5741                 brcmf_err("ndev is invalid\n");
5742                 return NULL;
5743         }
5744
5745         ifp = netdev_priv(ndev);
5746         wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
5747         if (!wiphy) {
5748                 brcmf_err("Could not allocate wiphy device\n");
5749                 return NULL;
5750         }
5751         set_wiphy_dev(wiphy, busdev);
5752
5753         cfg = wiphy_priv(wiphy);
5754         cfg->wiphy = wiphy;
5755         cfg->pub = drvr;
5756         init_vif_event(&cfg->vif_event);
5757         INIT_LIST_HEAD(&cfg->vif_list);
5758
5759         vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false);
5760         if (IS_ERR(vif))
5761                 goto wiphy_out;
5762
5763         vif->ifp = ifp;
5764         vif->wdev.netdev = ndev;
5765         ndev->ieee80211_ptr = &vif->wdev;
5766         SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
5767
5768         err = wl_init_priv(cfg);
5769         if (err) {
5770                 brcmf_err("Failed to init iwm_priv (%d)\n", err);
5771                 brcmf_free_vif(vif);
5772                 goto wiphy_out;
5773         }
5774         ifp->vif = vif;
5775
5776         /* determine d11 io type before wiphy setup */
5777         err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type);
5778         if (err) {
5779                 brcmf_err("Failed to get D11 version (%d)\n", err);
5780                 goto priv_out;
5781         }
5782         cfg->d11inf.io_type = (u8)io_type;
5783         brcmu_d11_attach(&cfg->d11inf);
5784
5785         err = brcmf_setup_wiphy(wiphy, ifp);
5786         if (err < 0)
5787                 goto priv_out;
5788
5789         brcmf_dbg(INFO, "Registering custom regulatory\n");
5790         wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
5791         wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
5792
5793         /* firmware defaults to 40MHz disabled in 2G band. We signal
5794          * cfg80211 here that we do and have it decide we can enable
5795          * it. But first check if device does support 2G operation.
5796          */
5797         if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
5798                 cap = &wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap.cap;
5799                 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5800         }
5801         err = wiphy_register(wiphy);
5802         if (err < 0) {
5803                 brcmf_err("Could not register wiphy device (%d)\n", err);
5804                 goto priv_out;
5805         }
5806
5807         /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(),
5808          * setup 40MHz in 2GHz band and enable OBSS scanning.
5809          */
5810         if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) {
5811                 err = brcmf_enable_bw40_2g(cfg);
5812                 if (!err)
5813                         err = brcmf_fil_iovar_int_set(ifp, "obss_coex",
5814                                                       BRCMF_OBSS_COEX_AUTO);
5815                 else
5816                         *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5817         }
5818
5819         err = brcmf_p2p_attach(cfg);
5820         if (err) {
5821                 brcmf_err("P2P initilisation failed (%d)\n", err);
5822                 goto wiphy_unreg_out;
5823         }
5824         err = brcmf_btcoex_attach(cfg);
5825         if (err) {
5826                 brcmf_err("BT-coex initialisation failed (%d)\n", err);
5827                 brcmf_p2p_detach(&cfg->p2p);
5828                 goto wiphy_unreg_out;
5829         }
5830
5831         err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
5832         if (err) {
5833                 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err);
5834                 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS;
5835         } else {
5836                 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT,
5837                                     brcmf_notify_tdls_peer_event);
5838         }
5839
5840         return cfg;
5841
5842 wiphy_unreg_out:
5843         wiphy_unregister(cfg->wiphy);
5844 priv_out:
5845         wl_deinit_priv(cfg);
5846         brcmf_free_vif(vif);
5847 wiphy_out:
5848         brcmf_free_wiphy(wiphy);
5849         return NULL;
5850 }
5851
5852 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
5853 {
5854         if (!cfg)
5855                 return;
5856
5857         WARN_ON(!list_empty(&cfg->vif_list));
5858         wiphy_unregister(cfg->wiphy);
5859         brcmf_btcoex_detach(cfg);
5860         brcmf_p2p_detach(&cfg->p2p);
5861         wl_deinit_priv(cfg);
5862         brcmf_free_wiphy(cfg->wiphy);
5863 }