drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 /* Toplevel file. Relies on dhd_linux.c to send commands to the dongle. */
  18
  19 #include <linux/kernel.h>
  20 #include <linux/etherdevice.h>
  21 #include <linux/module.h>
  22 #include <linux/vmalloc.h>
  23 #include <net/cfg80211.h>
  24 #include <net/netlink.h>
  25
  26 #include <brcmu_utils.h>
  27 #include <defs.h>
  28 #include <brcmu_wifi.h>
  29 #include "dhd.h"
  30 #include "dhd_dbg.h"
  31 #include "tracepoint.h"
  32 #include "fwil_types.h"
  33 #include "p2p.h"
  34 #include "btcoex.h"
  35 #include "wl_cfg80211.h"
  36 #include "feature.h"
  37 #include "fwil.h"
  38 #include "proto.h"
  39 #include "vendor.h"
  40
  41 #define BRCMF_SCAN_IE_LEN_MAX           2048
  42 #define BRCMF_PNO_VERSION               2
  43 #define BRCMF_PNO_TIME                  30
  44 #define BRCMF_PNO_REPEAT                4
  45 #define BRCMF_PNO_FREQ_EXPO_MAX         3
  46 #define BRCMF_PNO_MAX_PFN_COUNT         16
  47 #define BRCMF_PNO_ENABLE_ADAPTSCAN_BIT  6
  48 #define BRCMF_PNO_HIDDEN_BIT            2
  49 #define BRCMF_PNO_WPA_AUTH_ANY          0xFFFFFFFF
  50 #define BRCMF_PNO_SCAN_COMPLETE         1
  51 #define BRCMF_PNO_SCAN_INCOMPLETE       0
  52
  53 #define BRCMF_IFACE_MAX_CNT             3
  54
  55 #define WPA_OUI                         "\x00\x50\xF2"  /* WPA OUI */
  56 #define WPA_OUI_TYPE                    1
  57 #define RSN_OUI                         "\x00\x0F\xAC"  /* RSN OUI */
  58 #define WME_OUI_TYPE                    2
  59 #define WPS_OUI_TYPE                    4
  60
  61 #define VS_IE_FIXED_HDR_LEN             6
  62 #define WPA_IE_VERSION_LEN              2
  63 #define WPA_IE_MIN_OUI_LEN              4
  64 #define WPA_IE_SUITE_COUNT_LEN          2
  65
  66 #define WPA_CIPHER_NONE                 0       /* None */
  67 #define WPA_CIPHER_WEP_40               1       /* WEP (40-bit) */
  68 #define WPA_CIPHER_TKIP                 2       /* TKIP: default for WPA */
  69 #define WPA_CIPHER_AES_CCM              4       /* AES (CCM) */
  70 #define WPA_CIPHER_WEP_104              5       /* WEP (104-bit) */
  71
  72 #define RSN_AKM_NONE                    0       /* None (IBSS) */
  73 #define RSN_AKM_UNSPECIFIED             1       /* Over 802.1x */
  74 #define RSN_AKM_PSK                     2       /* Pre-shared Key */
  75 #define RSN_CAP_LEN                     2       /* Length of RSN capabilities */
  76 #define RSN_CAP_PTK_REPLAY_CNTR_MASK    0x000C
  77
  78 #define VNDR_IE_CMD_LEN                 4       /* length of the set command
  79                                                  * string :"add", "del" (+ NUL)
  80                                                  */
  81 #define VNDR_IE_COUNT_OFFSET            4
  82 #define VNDR_IE_PKTFLAG_OFFSET          8
  83 #define VNDR_IE_VSIE_OFFSET             12
  84 #define VNDR_IE_HDR_SIZE                12
  85 #define VNDR_IE_PARSE_LIMIT             5
  86
  87 #define DOT11_MGMT_HDR_LEN              24      /* d11 management header len */
  88 #define DOT11_BCN_PRB_FIXED_LEN         12      /* beacon/probe fixed length */
  89
  90 #define BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS    320
  91 #define BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS   400
  92 #define BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS       20
  93
  94 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
  95         (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
  96
  97 static bool check_vif_up(struct brcmf_cfg80211_vif *vif)
  98 {
  99         if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) {
 100                 brcmf_dbg(INFO, "device is not ready : status (%lu)\n",
 101                           vif->sme_state);
 102                 return false;
 103         }
 104         return true;
 105 }
 106
 107 #define RATE_TO_BASE100KBPS(rate)   (((rate) * 10) / 2)
 108 #define RATETAB_ENT(_rateid, _flags) \
 109         {                                                               \
 110                 .bitrate        = RATE_TO_BASE100KBPS(_rateid),     \
 111                 .hw_value       = (_rateid),                            \
 112                 .flags          = (_flags),                             \
 113         }
 114
 115 static struct ieee80211_rate __wl_rates[] = {
 116         RATETAB_ENT(BRCM_RATE_1M, 0),
 117         RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
 118         RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
 119         RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
 120         RATETAB_ENT(BRCM_RATE_6M, 0),
 121         RATETAB_ENT(BRCM_RATE_9M, 0),
 122         RATETAB_ENT(BRCM_RATE_12M, 0),
 123         RATETAB_ENT(BRCM_RATE_18M, 0),
 124         RATETAB_ENT(BRCM_RATE_24M, 0),
 125         RATETAB_ENT(BRCM_RATE_36M, 0),
 126         RATETAB_ENT(BRCM_RATE_48M, 0),
 127         RATETAB_ENT(BRCM_RATE_54M, 0),
 128 };
 129
 130 #define wl_a_rates              (__wl_rates + 4)
 131 #define wl_a_rates_size 8
 132 #define wl_g_rates              (__wl_rates + 0)
 133 #define wl_g_rates_size 12
 134
 135 /* Band templates duplicated per wiphy. The channel info
 136  * is filled in after querying the device.
 137  */
 138 static const struct ieee80211_supported_band __wl_band_2ghz = {
 139         .band = IEEE80211_BAND_2GHZ,
 140         .bitrates = wl_g_rates,
 141         .n_bitrates = wl_g_rates_size,
 142 };
 143
 144 static const struct ieee80211_supported_band __wl_band_5ghz_a = {
 145         .band = IEEE80211_BAND_5GHZ,
 146         .bitrates = wl_a_rates,
 147         .n_bitrates = wl_a_rates_size,
 148 };
 149
 150 /* This is to override regulatory domains defined in cfg80211 module (reg.c)
 151  * By default world regulatory domain defined in reg.c puts the flags
 152  * NL80211_RRF_NO_IR for 5GHz channels (for * 36..48 and 149..165).
 153  * With respect to these flags, wpa_supplicant doesn't * start p2p
 154  * operations on 5GHz channels. All the changes in world regulatory
 155  * domain are to be done here.
 156  */
 157 static const struct ieee80211_regdomain brcmf_regdom = {
 158         .n_reg_rules = 4,
 159         .alpha2 =  "99",
 160         .reg_rules = {
 161                 /* IEEE 802.11b/g, channels 1..11 */
 162                 REG_RULE(2412-10, 2472+10, 40, 6, 20, 0),
 163                 /* If any */
 164                 /* IEEE 802.11 channel 14 - Only JP enables
 165                  * this and for 802.11b only
 166                  */
 167                 REG_RULE(2484-10, 2484+10, 20, 6, 20, 0),
 168                 /* IEEE 802.11a, channel 36..64 */
 169                 REG_RULE(5150-10, 5350+10, 80, 6, 20, 0),
 170                 /* IEEE 802.11a, channel 100..165 */
 171                 REG_RULE(5470-10, 5850+10, 80, 6, 20, 0), }
 172 };
 173
 174 static const u32 __wl_cipher_suites[] = {
 175         WLAN_CIPHER_SUITE_WEP40,
 176         WLAN_CIPHER_SUITE_WEP104,
 177         WLAN_CIPHER_SUITE_TKIP,
 178         WLAN_CIPHER_SUITE_CCMP,
 179         WLAN_CIPHER_SUITE_AES_CMAC,
 180 };
 181
 182 /* Vendor specific ie. id = 221, oui and type defines exact ie */
 183 struct brcmf_vs_tlv {
 184         u8 id;
 185         u8 len;
 186         u8 oui[3];
 187         u8 oui_type;
 188 };
 189
 190 struct parsed_vndr_ie_info {
 191         u8 *ie_ptr;
 192         u32 ie_len;     /* total length including id & length field */
 193         struct brcmf_vs_tlv vndrie;
 194 };
 195
 196 struct parsed_vndr_ies {
 197         u32 count;
 198         struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
 199 };
 200
 201 static int brcmf_roamoff;
 202 module_param_named(roamoff, brcmf_roamoff, int, S_IRUSR);
 203 MODULE_PARM_DESC(roamoff, "do not use internal roaming engine");
 204
 205 /* Quarter dBm units to mW
 206  * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
 207  * Table is offset so the last entry is largest mW value that fits in
 208  * a u16.
 209  */
 210
 211 #define QDBM_OFFSET 153         /* Offset for first entry */
 212 #define QDBM_TABLE_LEN 40       /* Table size */
 213
 214 /* Smallest mW value that will round up to the first table entry, QDBM_OFFSET.
 215  * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2
 216  */
 217 #define QDBM_TABLE_LOW_BOUND 6493       /* Low bound */
 218
 219 /* Largest mW value that will round down to the last table entry,
 220  * QDBM_OFFSET + QDBM_TABLE_LEN-1.
 221  * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) +
 222  * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2.
 223  */
 224 #define QDBM_TABLE_HIGH_BOUND 64938     /* High bound */
 225
 226 static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = {
 227 /* qdBm:        +0      +1      +2      +3      +4      +5      +6      +7 */
 228 /* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000,
 229 /* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849,
 230 /* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119,
 231 /* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811,
 232 /* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096
 233 };
 234
 235 static u16 brcmf_qdbm_to_mw(u8 qdbm)
 236 {
 237         uint factor = 1;
 238         int idx = qdbm - QDBM_OFFSET;
 239
 240         if (idx >= QDBM_TABLE_LEN)
 241                 /* clamp to max u16 mW value */
 242                 return 0xFFFF;
 243
 244         /* scale the qdBm index up to the range of the table 0-40
 245          * where an offset of 40 qdBm equals a factor of 10 mW.
 246          */
 247         while (idx < 0) {
 248                 idx += 40;
 249                 factor *= 10;
 250         }
 251
 252         /* return the mW value scaled down to the correct factor of 10,
 253          * adding in factor/2 to get proper rounding.
 254          */
 255         return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
 256 }
 257
 258 static u8 brcmf_mw_to_qdbm(u16 mw)
 259 {
 260         u8 qdbm;
 261         int offset;
 262         uint mw_uint = mw;
 263         uint boundary;
 264
 265         /* handle boundary case */
 266         if (mw_uint <= 1)
 267                 return 0;
 268
 269         offset = QDBM_OFFSET;
 270
 271         /* move mw into the range of the table */
 272         while (mw_uint < QDBM_TABLE_LOW_BOUND) {
 273                 mw_uint *= 10;
 274                 offset -= 40;
 275         }
 276
 277         for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) {
 278                 boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] -
 279                                                     nqdBm_to_mW_map[qdbm]) / 2;
 280                 if (mw_uint < boundary)
 281                         break;
 282         }
 283
 284         qdbm += (u8) offset;
 285
 286         return qdbm;
 287 }
 288
 289 static u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf,
 290                                struct cfg80211_chan_def *ch)
 291 {
 292         struct brcmu_chan ch_inf;
 293         s32 primary_offset;
 294
 295         brcmf_dbg(TRACE, "chandef: control %d center %d width %d\n",
 296                   ch->chan->center_freq, ch->center_freq1, ch->width);
 297         ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq1);
 298         primary_offset = ch->center_freq1 - ch->chan->center_freq;
 299         switch (ch->width) {
 300         case NL80211_CHAN_WIDTH_20:
 301                 ch_inf.bw = BRCMU_CHAN_BW_20;
 302                 WARN_ON(primary_offset != 0);
 303                 break;
 304         case NL80211_CHAN_WIDTH_40:
 305                 ch_inf.bw = BRCMU_CHAN_BW_40;
 306                 if (primary_offset < 0)
 307                         ch_inf.sb = BRCMU_CHAN_SB_U;
 308                 else
 309                         ch_inf.sb = BRCMU_CHAN_SB_L;
 310                 break;
 311         case NL80211_CHAN_WIDTH_80:
 312                 ch_inf.bw = BRCMU_CHAN_BW_80;
 313                 if (primary_offset < 0) {
 314                         if (primary_offset < -CH_10MHZ_APART)
 315                                 ch_inf.sb = BRCMU_CHAN_SB_UU;
 316                         else
 317                                 ch_inf.sb = BRCMU_CHAN_SB_UL;
 318                 } else {
 319                         if (primary_offset > CH_10MHZ_APART)
 320                                 ch_inf.sb = BRCMU_CHAN_SB_LL;
 321                         else
 322                                 ch_inf.sb = BRCMU_CHAN_SB_LU;
 323                 }
 324                 break;
 325         default:
 326                 WARN_ON_ONCE(1);
 327         }
 328         switch (ch->chan->band) {
 329         case IEEE80211_BAND_2GHZ:
 330                 ch_inf.band = BRCMU_CHAN_BAND_2G;
 331                 break;
 332         case IEEE80211_BAND_5GHZ:
 333                 ch_inf.band = BRCMU_CHAN_BAND_5G;
 334                 break;
 335         default:
 336                 WARN_ON_ONCE(1);
 337         }
 338         d11inf->encchspec(&ch_inf);
 339
 340         return ch_inf.chspec;
 341 }
 342
 343 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
 344                         struct ieee80211_channel *ch)
 345 {
 346         struct brcmu_chan ch_inf;
 347
 348         ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq);
 349         ch_inf.bw = BRCMU_CHAN_BW_20;
 350         d11inf->encchspec(&ch_inf);
 351
 352         return ch_inf.chspec;
 353 }
 354
 355 /* Traverse a string of 1-byte tag/1-byte length/variable-length value
 356  * triples, returning a pointer to the substring whose first element
 357  * matches tag
 358  */
 359 const struct brcmf_tlv *
 360 brcmf_parse_tlvs(const void *buf, int buflen, uint key)
 361 {
 362         const struct brcmf_tlv *elt = buf;
 363         int totlen = buflen;
 364
 365         /* find tagged parameter */
 366         while (totlen >= TLV_HDR_LEN) {
 367                 int len = elt->len;
 368
 369                 /* validate remaining totlen */
 370                 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
 371                         return elt;
 372
 373                 elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN));
 374                 totlen -= (len + TLV_HDR_LEN);
 375         }
 376
 377         return NULL;
 378 }
 379
 380 /* Is any of the tlvs the expected entry? If
 381  * not update the tlvs buffer pointer/length.
 382  */
 383 static bool
 384 brcmf_tlv_has_ie(const u8 *ie, const u8 **tlvs, u32 *tlvs_len,
 385                  const u8 *oui, u32 oui_len, u8 type)
 386 {
 387         /* If the contents match the OUI and the type */
 388         if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
 389             !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
 390             type == ie[TLV_BODY_OFF + oui_len]) {
 391                 return true;
 392         }
 393
 394         if (tlvs == NULL)
 395                 return false;
 396         /* point to the next ie */
 397         ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
 398         /* calculate the length of the rest of the buffer */
 399         *tlvs_len -= (int)(ie - *tlvs);
 400         /* update the pointer to the start of the buffer */
 401         *tlvs = ie;
 402
 403         return false;
 404 }
 405
 406 static struct brcmf_vs_tlv *
 407 brcmf_find_wpaie(const u8 *parse, u32 len)
 408 {
 409         const struct brcmf_tlv *ie;
 410
 411         while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
 412                 if (brcmf_tlv_has_ie((const u8 *)ie, &parse, &len,
 413                                      WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
 414                         return (struct brcmf_vs_tlv *)ie;
 415         }
 416         return NULL;
 417 }
 418
 419 static struct brcmf_vs_tlv *
 420 brcmf_find_wpsie(const u8 *parse, u32 len)
 421 {
 422         const struct brcmf_tlv *ie;
 423
 424         while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
 425                 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
 426                                      WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE))
 427                         return (struct brcmf_vs_tlv *)ie;
 428         }
 429         return NULL;
 430 }
 431
 432
 433 static void convert_key_from_CPU(struct brcmf_wsec_key *key,
 434                                  struct brcmf_wsec_key_le *key_le)
 435 {
 436         key_le->index = cpu_to_le32(key->index);
 437         key_le->len = cpu_to_le32(key->len);
 438         key_le->algo = cpu_to_le32(key->algo);
 439         key_le->flags = cpu_to_le32(key->flags);
 440         key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
 441         key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
 442         key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
 443         memcpy(key_le->data, key->data, sizeof(key->data));
 444         memcpy(key_le->ea, key->ea, sizeof(key->ea));
 445 }
 446
 447 static int
 448 send_key_to_dongle(struct net_device *ndev, struct brcmf_wsec_key *key)
 449 {
 450         int err;
 451         struct brcmf_wsec_key_le key_le;
 452
 453         convert_key_from_CPU(key, &key_le);
 454
 455         brcmf_netdev_wait_pend8021x(ndev);
 456
 457         err = brcmf_fil_bsscfg_data_set(netdev_priv(ndev), "wsec_key", &key_le,
 458                                         sizeof(key_le));
 459
 460         if (err)
 461                 brcmf_err("wsec_key error (%d)\n", err);
 462         return err;
 463 }
 464
 465 static s32
 466 brcmf_configure_arp_offload(struct brcmf_if *ifp, bool enable)
 467 {
 468         s32 err;
 469         u32 mode;
 470
 471         if (enable)
 472                 mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
 473         else
 474                 mode = 0;
 475
 476         /* Try to set and enable ARP offload feature, this may fail, then it  */
 477         /* is simply not supported and err 0 will be returned                 */
 478         err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
 479         if (err) {
 480                 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
 481                           mode, err);
 482                 err = 0;
 483         } else {
 484                 err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
 485                 if (err) {
 486                         brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
 487                                   enable, err);
 488                         err = 0;
 489                 } else
 490                         brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
 491                                   enable, mode);
 492         }
 493
 494         return err;
 495 }
 496
 497 static void
 498 brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev)
 499 {
 500         struct net_device *ndev = wdev->netdev;
 501         struct brcmf_if *ifp = netdev_priv(ndev);
 502
 503         if ((wdev->iftype == NL80211_IFTYPE_ADHOC) ||
 504             (wdev->iftype == NL80211_IFTYPE_AP) ||
 505             (wdev->iftype == NL80211_IFTYPE_P2P_GO))
 506                 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
 507                                                 ADDR_DIRECT);
 508         else
 509                 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx,
 510                                                 ADDR_INDIRECT);
 511 }
 512
 513 static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif)
 514 {
 515         enum nl80211_iftype iftype;
 516
 517         iftype = vif->wdev.iftype;
 518         return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO;
 519 }
 520
 521 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
 522 {
 523         return vif->wdev.iftype == NL80211_IFTYPE_ADHOC;
 524 }
 525
 526 static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
 527                                                      const char *name,
 528                                                      enum nl80211_iftype type,
 529                                                      u32 *flags,
 530                                                      struct vif_params *params)
 531 {
 532         struct wireless_dev *wdev;
 533
 534         brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
 535         switch (type) {
 536         case NL80211_IFTYPE_ADHOC:
 537         case NL80211_IFTYPE_STATION:
 538         case NL80211_IFTYPE_AP:
 539         case NL80211_IFTYPE_AP_VLAN:
 540         case NL80211_IFTYPE_WDS:
 541         case NL80211_IFTYPE_MONITOR:
 542         case NL80211_IFTYPE_MESH_POINT:
 543                 return ERR_PTR(-EOPNOTSUPP);
 544         case NL80211_IFTYPE_P2P_CLIENT:
 545         case NL80211_IFTYPE_P2P_GO:
 546         case NL80211_IFTYPE_P2P_DEVICE:
 547                 wdev = brcmf_p2p_add_vif(wiphy, name, type, flags, params);
 548                 if (!IS_ERR(wdev))
 549                         brcmf_cfg80211_update_proto_addr_mode(wdev);
 550                 return wdev;
 551         case NL80211_IFTYPE_UNSPECIFIED:
 552         default:
 553                 return ERR_PTR(-EINVAL);
 554         }
 555 }
 556
 557 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
 558 {
 559         if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC))
 560                 brcmf_set_mpc(ifp, mpc);
 561 }
 562
 563 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
 564 {
 565         s32 err = 0;
 566
 567         if (check_vif_up(ifp->vif)) {
 568                 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
 569                 if (err) {
 570                         brcmf_err("fail to set mpc\n");
 571                         return;
 572                 }
 573                 brcmf_dbg(INFO, "MPC : %d\n", mpc);
 574         }
 575 }
 576
 577 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
 578                                 struct brcmf_if *ifp, bool aborted,
 579                                 bool fw_abort)
 580 {
 581         struct brcmf_scan_params_le params_le;
 582         struct cfg80211_scan_request *scan_request;
 583         s32 err = 0;
 584
 585         brcmf_dbg(SCAN, "Enter\n");
 586
 587         /* clear scan request, because the FW abort can cause a second call */
 588         /* to this functon and might cause a double cfg80211_scan_done      */
 589         scan_request = cfg->scan_request;
 590         cfg->scan_request = NULL;
 591
 592         if (timer_pending(&cfg->escan_timeout))
 593                 del_timer_sync(&cfg->escan_timeout);
 594
 595         if (fw_abort) {
 596                 /* Do a scan abort to stop the driver's scan engine */
 597                 brcmf_dbg(SCAN, "ABORT scan in firmware\n");
 598                 memset(&params_le, 0, sizeof(params_le));
 599                 memset(params_le.bssid, 0xFF, ETH_ALEN);
 600                 params_le.bss_type = DOT11_BSSTYPE_ANY;
 601                 params_le.scan_type = 0;
 602                 params_le.channel_num = cpu_to_le32(1);
 603                 params_le.nprobes = cpu_to_le32(1);
 604                 params_le.active_time = cpu_to_le32(-1);
 605                 params_le.passive_time = cpu_to_le32(-1);
 606                 params_le.home_time = cpu_to_le32(-1);
 607                 /* Scan is aborted by setting channel_list[0] to -1 */
 608                 params_le.channel_list[0] = cpu_to_le16(-1);
 609                 /* E-Scan (or anyother type) can be aborted by SCAN */
 610                 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
 611                                              &params_le, sizeof(params_le));
 612                 if (err)
 613                         brcmf_err("Scan abort  failed\n");
 614         }
 615
 616         brcmf_scan_config_mpc(ifp, 1);
 617
 618         /*
 619          * e-scan can be initiated by scheduled scan
 620          * which takes precedence.
 621          */
 622         if (cfg->sched_escan) {
 623                 brcmf_dbg(SCAN, "scheduled scan completed\n");
 624                 cfg->sched_escan = false;
 625                 if (!aborted)
 626                         cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
 627         } else if (scan_request) {
 628                 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
 629                           aborted ? "Aborted" : "Done");
 630                 cfg80211_scan_done(scan_request, aborted);
 631         }
 632         if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
 633                 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
 634
 635         return err;
 636 }
 637
 638 static
 639 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
 640 {
 641         struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
 642         struct net_device *ndev = wdev->netdev;
 643
 644         /* vif event pending in firmware */
 645         if (brcmf_cfg80211_vif_event_armed(cfg))
 646                 return -EBUSY;
 647
 648         if (ndev) {
 649                 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
 650                     cfg->escan_info.ifp == netdev_priv(ndev))
 651                         brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
 652                                                     true, true);
 653
 654                 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
 655         }
 656
 657         switch (wdev->iftype) {
 658         case NL80211_IFTYPE_ADHOC:
 659         case NL80211_IFTYPE_STATION:
 660         case NL80211_IFTYPE_AP:
 661         case NL80211_IFTYPE_AP_VLAN:
 662         case NL80211_IFTYPE_WDS:
 663         case NL80211_IFTYPE_MONITOR:
 664         case NL80211_IFTYPE_MESH_POINT:
 665                 return -EOPNOTSUPP;
 666         case NL80211_IFTYPE_P2P_CLIENT:
 667         case NL80211_IFTYPE_P2P_GO:
 668         case NL80211_IFTYPE_P2P_DEVICE:
 669                 return brcmf_p2p_del_vif(wiphy, wdev);
 670         case NL80211_IFTYPE_UNSPECIFIED:
 671         default:
 672                 return -EINVAL;
 673         }
 674         return -EOPNOTSUPP;
 675 }
 676
 677 static s32
 678 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
 679                          enum nl80211_iftype type, u32 *flags,
 680                          struct vif_params *params)
 681 {
 682         struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
 683         struct brcmf_if *ifp = netdev_priv(ndev);
 684         struct brcmf_cfg80211_vif *vif = ifp->vif;
 685         s32 infra = 0;
 686         s32 ap = 0;
 687         s32 err = 0;
 688
 689         brcmf_dbg(TRACE, "Enter, ndev=%p, type=%d\n", ndev, type);
 690
 691         switch (type) {
 692         case NL80211_IFTYPE_MONITOR:
 693         case NL80211_IFTYPE_WDS:
 694                 brcmf_err("type (%d) : currently we do not support this type\n",
 695                           type);
 696                 return -EOPNOTSUPP;
 697         case NL80211_IFTYPE_ADHOC:
 698                 infra = 0;
 699                 break;
 700         case NL80211_IFTYPE_STATION:
 701                 /* Ignore change for p2p IF. Unclear why supplicant does this */
 702                 if ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) ||
 703                     (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO)) {
 704                         brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n");
 705                         /* WAR: It is unexpected to get a change of VIF for P2P
 706                          * IF, but it happens. The request can not be handled
 707                          * but returning EPERM causes a crash. Returning 0
 708                          * without setting ieee80211_ptr->iftype causes trace
 709                          * (WARN_ON) but it works with wpa_supplicant
 710                          */
 711                         return 0;
 712                 }
 713                 infra = 1;
 714                 break;
 715         case NL80211_IFTYPE_AP:
 716         case NL80211_IFTYPE_P2P_GO:
 717                 ap = 1;
 718                 break;
 719         default:
 720                 err = -EINVAL;
 721                 goto done;
 722         }
 723
 724         if (ap) {
 725                 if (type == NL80211_IFTYPE_P2P_GO) {
 726                         brcmf_dbg(INFO, "IF Type = P2P GO\n");
 727                         err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
 728                 }
 729                 if (!err) {
 730                         set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
 731                         brcmf_dbg(INFO, "IF Type = AP\n");
 732                 }
 733         } else {
 734                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
 735                 if (err) {
 736                         brcmf_err("WLC_SET_INFRA error (%d)\n", err);
 737                         err = -EAGAIN;
 738                         goto done;
 739                 }
 740                 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ?
 741                           "Adhoc" : "Infra");
 742         }
 743         ndev->ieee80211_ptr->iftype = type;
 744
 745         brcmf_cfg80211_update_proto_addr_mode(&vif->wdev);
 746
 747 done:
 748         brcmf_dbg(TRACE, "Exit\n");
 749
 750         return err;
 751 }
 752
 753 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
 754                              struct brcmf_scan_params_le *params_le,
 755                              struct cfg80211_scan_request *request)
 756 {
 757         u32 n_ssids;
 758         u32 n_channels;
 759         s32 i;
 760         s32 offset;
 761         u16 chanspec;
 762         char *ptr;
 763         struct brcmf_ssid_le ssid_le;
 764
 765         memset(params_le->bssid, 0xFF, ETH_ALEN);
 766         params_le->bss_type = DOT11_BSSTYPE_ANY;
 767         params_le->scan_type = 0;
 768         params_le->channel_num = 0;
 769         params_le->nprobes = cpu_to_le32(-1);
 770         params_le->active_time = cpu_to_le32(-1);
 771         params_le->passive_time = cpu_to_le32(-1);
 772         params_le->home_time = cpu_to_le32(-1);
 773         memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
 774
 775         /* if request is null exit so it will be all channel broadcast scan */
 776         if (!request)
 777                 return;
 778
 779         n_ssids = request->n_ssids;
 780         n_channels = request->n_channels;
 781         /* Copy channel array if applicable */
 782         brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
 783                   n_channels);
 784         if (n_channels > 0) {
 785                 for (i = 0; i < n_channels; i++) {
 786                         chanspec = channel_to_chanspec(&cfg->d11inf,
 787                                                        request->channels[i]);
 788                         brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
 789                                   request->channels[i]->hw_value, chanspec);
 790                         params_le->channel_list[i] = cpu_to_le16(chanspec);
 791                 }
 792         } else {
 793                 brcmf_dbg(SCAN, "Scanning all channels\n");
 794         }
 795         /* Copy ssid array if applicable */
 796         brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids);
 797         if (n_ssids > 0) {
 798                 offset = offsetof(struct brcmf_scan_params_le, channel_list) +
 799                                 n_channels * sizeof(u16);
 800                 offset = roundup(offset, sizeof(u32));
 801                 ptr = (char *)params_le + offset;
 802                 for (i = 0; i < n_ssids; i++) {
 803                         memset(&ssid_le, 0, sizeof(ssid_le));
 804                         ssid_le.SSID_len =
 805                                         cpu_to_le32(request->ssids[i].ssid_len);
 806                         memcpy(ssid_le.SSID, request->ssids[i].ssid,
 807                                request->ssids[i].ssid_len);
 808                         if (!ssid_le.SSID_len)
 809                                 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
 810                         else
 811                                 brcmf_dbg(SCAN, "%d: scan for  %s size =%d\n",
 812                                           i, ssid_le.SSID, ssid_le.SSID_len);
 813                         memcpy(ptr, &ssid_le, sizeof(ssid_le));
 814                         ptr += sizeof(ssid_le);
 815                 }
 816         } else {
 817                 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
 818                 if ((request->ssids) && request->ssids->ssid_len) {
 819                         brcmf_dbg(SCAN, "SSID %s len=%d\n",
 820                                   params_le->ssid_le.SSID,
 821                                   request->ssids->ssid_len);
 822                         params_le->ssid_le.SSID_len =
 823                                 cpu_to_le32(request->ssids->ssid_len);
 824                         memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
 825                                 request->ssids->ssid_len);
 826                 }
 827         }
 828         /* Adding mask to channel numbers */
 829         params_le->channel_num =
 830                 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
 831                         (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
 832 }
 833
 834 static s32
 835 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
 836                 struct cfg80211_scan_request *request, u16 action)
 837 {
 838         s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
 839                           offsetof(struct brcmf_escan_params_le, params_le);
 840         struct brcmf_escan_params_le *params;
 841         s32 err = 0;
 842
 843         brcmf_dbg(SCAN, "E-SCAN START\n");
 844
 845         if (request != NULL) {
 846                 /* Allocate space for populating ssids in struct */
 847                 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
 848
 849                 /* Allocate space for populating ssids in struct */
 850                 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
 851         }
 852
 853         params = kzalloc(params_size, GFP_KERNEL);
 854         if (!params) {
 855                 err = -ENOMEM;
 856                 goto exit;
 857         }
 858         BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
 859         brcmf_escan_prep(cfg, &params->params_le, request);
 860         params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
 861         params->action = cpu_to_le16(action);
 862         params->sync_id = cpu_to_le16(0x1234);
 863
 864         err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
 865         if (err) {
 866                 if (err == -EBUSY)
 867                         brcmf_dbg(INFO, "system busy : escan canceled\n");
 868                 else
 869                         brcmf_err("error (%d)\n", err);
 870         }
 871
 872         kfree(params);
 873 exit:
 874         return err;
 875 }
 876
 877 static s32
 878 brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
 879                struct brcmf_if *ifp, struct cfg80211_scan_request *request)
 880 {
 881         s32 err;
 882         u32 passive_scan;
 883         struct brcmf_scan_results *results;
 884         struct escan_info *escan = &cfg->escan_info;
 885
 886         brcmf_dbg(SCAN, "Enter\n");
 887         escan->ifp = ifp;
 888         escan->wiphy = wiphy;
 889         escan->escan_state = WL_ESCAN_STATE_SCANNING;
 890         passive_scan = cfg->active_scan ? 0 : 1;
 891         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
 892                                     passive_scan);
 893         if (err) {
 894                 brcmf_err("error (%d)\n", err);
 895                 return err;
 896         }
 897         brcmf_scan_config_mpc(ifp, 0);
 898         results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
 899         results->version = 0;
 900         results->count = 0;
 901         results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
 902
 903         err = escan->run(cfg, ifp, request, WL_ESCAN_ACTION_START);
 904         if (err)
 905                 brcmf_scan_config_mpc(ifp, 1);
 906         return err;
 907 }
 908
 909 static s32
 910 brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
 911                      struct cfg80211_scan_request *request,
 912                      struct cfg80211_ssid *this_ssid)
 913 {
 914         struct brcmf_if *ifp = vif->ifp;
 915         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 916         struct cfg80211_ssid *ssids;
 917         struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
 918         u32 passive_scan;
 919         bool escan_req;
 920         bool spec_scan;
 921         s32 err;
 922         u32 SSID_len;
 923
 924         brcmf_dbg(SCAN, "START ESCAN\n");
 925
 926         if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
 927                 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
 928                 return -EAGAIN;
 929         }
 930         if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
 931                 brcmf_err("Scanning being aborted: status (%lu)\n",
 932                           cfg->scan_status);
 933                 return -EAGAIN;
 934         }
 935         if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
 936                 brcmf_err("Scanning suppressed: status (%lu)\n",
 937                           cfg->scan_status);
 938                 return -EAGAIN;
 939         }
 940         if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
 941                 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
 942                 return -EAGAIN;
 943         }
 944
 945         /* If scan req comes for p2p0, send it over primary I/F */
 946         if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
 947                 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
 948
 949         /* Arm scan timeout timer */
 950         mod_timer(&cfg->escan_timeout, jiffies +
 951                         WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
 952
 953         escan_req = false;
 954         if (request) {
 955                 /* scan bss */
 956                 ssids = request->ssids;
 957                 escan_req = true;
 958         } else {
 959                 /* scan in ibss */
 960                 /* we don't do escan in ibss */
 961                 ssids = this_ssid;
 962         }
 963
 964         cfg->scan_request = request;
 965         set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
 966         if (escan_req) {
 967                 cfg->escan_info.run = brcmf_run_escan;
 968                 err = brcmf_p2p_scan_prep(wiphy, request, vif);
 969                 if (err)
 970                         goto scan_out;
 971
 972                 err = brcmf_do_escan(cfg, wiphy, vif->ifp, request);
 973                 if (err)
 974                         goto scan_out;
 975         } else {
 976                 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n",
 977                           ssids->ssid, ssids->ssid_len);
 978                 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
 979                 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
 980                 sr->ssid_le.SSID_len = cpu_to_le32(0);
 981                 spec_scan = false;
 982                 if (SSID_len) {
 983                         memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
 984                         sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
 985                         spec_scan = true;
 986                 } else
 987                         brcmf_dbg(SCAN, "Broadcast scan\n");
 988
 989                 passive_scan = cfg->active_scan ? 0 : 1;
 990                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
 991                                             passive_scan);
 992                 if (err) {
 993                         brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
 994                         goto scan_out;
 995                 }
 996                 brcmf_scan_config_mpc(ifp, 0);
 997                 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
 998                                              &sr->ssid_le, sizeof(sr->ssid_le));
 999                 if (err) {
1000                         if (err == -EBUSY)
1001                                 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n",
1002                                           sr->ssid_le.SSID);
1003                         else
1004                                 brcmf_err("WLC_SCAN error (%d)\n", err);
1005
1006                         brcmf_scan_config_mpc(ifp, 1);
1007                         goto scan_out;
1008                 }
1009         }
1010
1011         return 0;
1012
1013 scan_out:
1014         clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1015         if (timer_pending(&cfg->escan_timeout))
1016                 del_timer_sync(&cfg->escan_timeout);
1017         cfg->scan_request = NULL;
1018         return err;
1019 }
1020
1021 static s32
1022 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
1023 {
1024         struct brcmf_cfg80211_vif *vif;
1025         s32 err = 0;
1026
1027         brcmf_dbg(TRACE, "Enter\n");
1028         vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
1029         if (!check_vif_up(vif))
1030                 return -EIO;
1031
1032         err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);
1033
1034         if (err)
1035                 brcmf_err("scan error (%d)\n", err);
1036
1037         brcmf_dbg(TRACE, "Exit\n");
1038         return err;
1039 }
1040
1041 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1042 {
1043         s32 err = 0;
1044
1045         err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1046                                       rts_threshold);
1047         if (err)
1048                 brcmf_err("Error (%d)\n", err);
1049
1050         return err;
1051 }
1052
1053 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1054 {
1055         s32 err = 0;
1056
1057         err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1058                                       frag_threshold);
1059         if (err)
1060                 brcmf_err("Error (%d)\n", err);
1061
1062         return err;
1063 }
1064
1065 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1066 {
1067         s32 err = 0;
1068         u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL);
1069
1070         err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1071         if (err) {
1072                 brcmf_err("cmd (%d) , error (%d)\n", cmd, err);
1073                 return err;
1074         }
1075         return err;
1076 }
1077
1078 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1079 {
1080         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1081         struct net_device *ndev = cfg_to_ndev(cfg);
1082         struct brcmf_if *ifp = netdev_priv(ndev);
1083         s32 err = 0;
1084
1085         brcmf_dbg(TRACE, "Enter\n");
1086         if (!check_vif_up(ifp->vif))
1087                 return -EIO;
1088
1089         if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1090             (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1091                 cfg->conf->rts_threshold = wiphy->rts_threshold;
1092                 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1093                 if (!err)
1094                         goto done;
1095         }
1096         if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1097             (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1098                 cfg->conf->frag_threshold = wiphy->frag_threshold;
1099                 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1100                 if (!err)
1101                         goto done;
1102         }
1103         if (changed & WIPHY_PARAM_RETRY_LONG
1104             && (cfg->conf->retry_long != wiphy->retry_long)) {
1105                 cfg->conf->retry_long = wiphy->retry_long;
1106                 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1107                 if (!err)
1108                         goto done;
1109         }
1110         if (changed & WIPHY_PARAM_RETRY_SHORT
1111             && (cfg->conf->retry_short != wiphy->retry_short)) {
1112                 cfg->conf->retry_short = wiphy->retry_short;
1113                 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1114                 if (!err)
1115                         goto done;
1116         }
1117
1118 done:
1119         brcmf_dbg(TRACE, "Exit\n");
1120         return err;
1121 }
1122
1123 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1124 {
1125         memset(prof, 0, sizeof(*prof));
1126 }
1127
1128 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif)
1129 {
1130         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
1131         s32 err = 0;
1132
1133         brcmf_dbg(TRACE, "Enter\n");
1134
1135         if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
1136                 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n ");
1137                 err = brcmf_fil_cmd_data_set(vif->ifp,
1138                                              BRCMF_C_DISASSOC, NULL, 0);
1139                 if (err) {
1140                         brcmf_err("WLC_DISASSOC failed (%d)\n", err);
1141                 }
1142                 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
1143                 cfg80211_disconnected(vif->wdev.netdev, 0, NULL, 0, GFP_KERNEL);
1144
1145         }
1146         clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
1147         clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
1148         brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
1149         brcmf_dbg(TRACE, "Exit\n");
1150 }
1151
1152 static s32
1153 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1154                       struct cfg80211_ibss_params *params)
1155 {
1156         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1157         struct brcmf_if *ifp = netdev_priv(ndev);
1158         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1159         struct brcmf_join_params join_params;
1160         size_t join_params_size = 0;
1161         s32 err = 0;
1162         s32 wsec = 0;
1163         s32 bcnprd;
1164         u16 chanspec;
1165
1166         brcmf_dbg(TRACE, "Enter\n");
1167         if (!check_vif_up(ifp->vif))
1168                 return -EIO;
1169
1170         if (params->ssid)
1171                 brcmf_dbg(CONN, "SSID: %s\n", params->ssid);
1172         else {
1173                 brcmf_dbg(CONN, "SSID: NULL, Not supported\n");
1174                 return -EOPNOTSUPP;
1175         }
1176
1177         set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1178
1179         if (params->bssid)
1180                 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid);
1181         else
1182                 brcmf_dbg(CONN, "No BSSID specified\n");
1183
1184         if (params->chandef.chan)
1185                 brcmf_dbg(CONN, "channel: %d\n",
1186                           params->chandef.chan->center_freq);
1187         else
1188                 brcmf_dbg(CONN, "no channel specified\n");
1189
1190         if (params->channel_fixed)
1191                 brcmf_dbg(CONN, "fixed channel required\n");
1192         else
1193                 brcmf_dbg(CONN, "no fixed channel required\n");
1194
1195         if (params->ie && params->ie_len)
1196                 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len);
1197         else
1198                 brcmf_dbg(CONN, "no ie specified\n");
1199
1200         if (params->beacon_interval)
1201                 brcmf_dbg(CONN, "beacon interval: %d\n",
1202                           params->beacon_interval);
1203         else
1204                 brcmf_dbg(CONN, "no beacon interval specified\n");
1205
1206         if (params->basic_rates)
1207                 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates);
1208         else
1209                 brcmf_dbg(CONN, "no basic rates specified\n");
1210
1211         if (params->privacy)
1212                 brcmf_dbg(CONN, "privacy required\n");
1213         else
1214                 brcmf_dbg(CONN, "no privacy required\n");
1215
1216         /* Configure Privacy for starter */
1217         if (params->privacy)
1218                 wsec |= WEP_ENABLED;
1219
1220         err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1221         if (err) {
1222                 brcmf_err("wsec failed (%d)\n", err);
1223                 goto done;
1224         }
1225
1226         /* Configure Beacon Interval for starter */
1227         if (params->beacon_interval)
1228                 bcnprd = params->beacon_interval;
1229         else
1230                 bcnprd = 100;
1231
1232         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd);
1233         if (err) {
1234                 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err);
1235                 goto done;
1236         }
1237
1238         /* Configure required join parameter */
1239         memset(&join_params, 0, sizeof(struct brcmf_join_params));
1240
1241         /* SSID */
1242         profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1243         memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1244         memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1245         join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1246         join_params_size = sizeof(join_params.ssid_le);
1247
1248         /* BSSID */
1249         if (params->bssid) {
1250                 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1251                 join_params_size = sizeof(join_params.ssid_le) +
1252                                    BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1253                 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1254         } else {
1255                 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1256                 memset(profile->bssid, 0, ETH_ALEN);
1257         }
1258
1259         /* Channel */
1260         if (params->chandef.chan) {
1261                 u32 target_channel;
1262
1263                 cfg->channel =
1264                         ieee80211_frequency_to_channel(
1265                                 params->chandef.chan->center_freq);
1266                 if (params->channel_fixed) {
1267                         /* adding chanspec */
1268                         chanspec = chandef_to_chanspec(&cfg->d11inf,
1269                                                        &params->chandef);
1270                         join_params.params_le.chanspec_list[0] =
1271                                 cpu_to_le16(chanspec);
1272                         join_params.params_le.chanspec_num = cpu_to_le32(1);
1273                         join_params_size += sizeof(join_params.params_le);
1274                 }
1275
1276                 /* set channel for starter */
1277                 target_channel = cfg->channel;
1278                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL,
1279                                             target_channel);
1280                 if (err) {
1281                         brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err);
1282                         goto done;
1283                 }
1284         } else
1285                 cfg->channel = 0;
1286
1287         cfg->ibss_starter = false;
1288
1289
1290         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1291                                      &join_params, join_params_size);
1292         if (err) {
1293                 brcmf_err("WLC_SET_SSID failed (%d)\n", err);
1294                 goto done;
1295         }
1296
1297 done:
1298         if (err)
1299                 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1300         brcmf_dbg(TRACE, "Exit\n");
1301         return err;
1302 }
1303
1304 static s32
1305 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1306 {
1307         struct brcmf_if *ifp = netdev_priv(ndev);
1308
1309         brcmf_dbg(TRACE, "Enter\n");
1310         if (!check_vif_up(ifp->vif))
1311                 return -EIO;
1312
1313         brcmf_link_down(ifp->vif);
1314
1315         brcmf_dbg(TRACE, "Exit\n");
1316
1317         return 0;
1318 }
1319
1320 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1321                                  struct cfg80211_connect_params *sme)
1322 {
1323         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1324         struct brcmf_cfg80211_security *sec;
1325         s32 val = 0;
1326         s32 err = 0;
1327
1328         if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1329                 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1330         else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1331                 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1332         else
1333                 val = WPA_AUTH_DISABLED;
1334         brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val);
1335         err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val);
1336         if (err) {
1337                 brcmf_err("set wpa_auth failed (%d)\n", err);
1338                 return err;
1339         }
1340         sec = &profile->sec;
1341         sec->wpa_versions = sme->crypto.wpa_versions;
1342         return err;
1343 }
1344
1345 static s32 brcmf_set_auth_type(struct net_device *ndev,
1346                                struct cfg80211_connect_params *sme)
1347 {
1348         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1349         struct brcmf_cfg80211_security *sec;
1350         s32 val = 0;
1351         s32 err = 0;
1352
1353         switch (sme->auth_type) {
1354         case NL80211_AUTHTYPE_OPEN_SYSTEM:
1355                 val = 0;
1356                 brcmf_dbg(CONN, "open system\n");
1357                 break;
1358         case NL80211_AUTHTYPE_SHARED_KEY:
1359                 val = 1;
1360                 brcmf_dbg(CONN, "shared key\n");
1361                 break;
1362         case NL80211_AUTHTYPE_AUTOMATIC:
1363                 val = 2;
1364                 brcmf_dbg(CONN, "automatic\n");
1365                 break;
1366         case NL80211_AUTHTYPE_NETWORK_EAP:
1367                 brcmf_dbg(CONN, "network eap\n");
1368         default:
1369                 val = 2;
1370                 brcmf_err("invalid auth type (%d)\n", sme->auth_type);
1371                 break;
1372         }
1373
1374         err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1375         if (err) {
1376                 brcmf_err("set auth failed (%d)\n", err);
1377                 return err;
1378         }
1379         sec = &profile->sec;
1380         sec->auth_type = sme->auth_type;
1381         return err;
1382 }
1383
1384 static s32
1385 brcmf_set_wsec_mode(struct net_device *ndev,
1386                      struct cfg80211_connect_params *sme, bool mfp)
1387 {
1388         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1389         struct brcmf_cfg80211_security *sec;
1390         s32 pval = 0;
1391         s32 gval = 0;
1392         s32 wsec;
1393         s32 err = 0;
1394
1395         if (sme->crypto.n_ciphers_pairwise) {
1396                 switch (sme->crypto.ciphers_pairwise[0]) {
1397                 case WLAN_CIPHER_SUITE_WEP40:
1398                 case WLAN_CIPHER_SUITE_WEP104:
1399                         pval = WEP_ENABLED;
1400                         break;
1401                 case WLAN_CIPHER_SUITE_TKIP:
1402                         pval = TKIP_ENABLED;
1403                         break;
1404                 case WLAN_CIPHER_SUITE_CCMP:
1405                         pval = AES_ENABLED;
1406                         break;
1407                 case WLAN_CIPHER_SUITE_AES_CMAC:
1408                         pval = AES_ENABLED;
1409                         break;
1410                 default:
1411                         brcmf_err("invalid cipher pairwise (%d)\n",
1412                                   sme->crypto.ciphers_pairwise[0]);
1413                         return -EINVAL;
1414                 }
1415         }
1416         if (sme->crypto.cipher_group) {
1417                 switch (sme->crypto.cipher_group) {
1418                 case WLAN_CIPHER_SUITE_WEP40:
1419                 case WLAN_CIPHER_SUITE_WEP104:
1420                         gval = WEP_ENABLED;
1421                         break;
1422                 case WLAN_CIPHER_SUITE_TKIP:
1423                         gval = TKIP_ENABLED;
1424                         break;
1425                 case WLAN_CIPHER_SUITE_CCMP:
1426                         gval = AES_ENABLED;
1427                         break;
1428                 case WLAN_CIPHER_SUITE_AES_CMAC:
1429                         gval = AES_ENABLED;
1430                         break;
1431                 default:
1432                         brcmf_err("invalid cipher group (%d)\n",
1433                                   sme->crypto.cipher_group);
1434                         return -EINVAL;
1435                 }
1436         }
1437
1438         brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval);
1439         /* In case of privacy, but no security and WPS then simulate */
1440         /* setting AES. WPS-2.0 allows no security                   */
1441         if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval &&
1442             sme->privacy)
1443                 pval = AES_ENABLED;
1444
1445         if (mfp)
1446                 wsec = pval | gval | MFP_CAPABLE;
1447         else
1448                 wsec = pval | gval;
1449         err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec);
1450         if (err) {
1451                 brcmf_err("error (%d)\n", err);
1452                 return err;
1453         }
1454
1455         sec = &profile->sec;
1456         sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1457         sec->cipher_group = sme->crypto.cipher_group;
1458
1459         return err;
1460 }
1461
1462 static s32
1463 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1464 {
1465         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1466         struct brcmf_cfg80211_security *sec;
1467         s32 val = 0;
1468         s32 err = 0;
1469
1470         if (sme->crypto.n_akm_suites) {
1471                 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev),
1472                                                "wpa_auth", &val);
1473                 if (err) {
1474                         brcmf_err("could not get wpa_auth (%d)\n", err);
1475                         return err;
1476                 }
1477                 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1478                         switch (sme->crypto.akm_suites[0]) {
1479                         case WLAN_AKM_SUITE_8021X:
1480                                 val = WPA_AUTH_UNSPECIFIED;
1481                                 break;
1482                         case WLAN_AKM_SUITE_PSK:
1483                                 val = WPA_AUTH_PSK;
1484                                 break;
1485                         default:
1486                                 brcmf_err("invalid cipher group (%d)\n",
1487                                           sme->crypto.cipher_group);
1488                                 return -EINVAL;
1489                         }
1490                 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1491                         switch (sme->crypto.akm_suites[0]) {
1492                         case WLAN_AKM_SUITE_8021X:
1493                                 val = WPA2_AUTH_UNSPECIFIED;
1494                                 break;
1495                         case WLAN_AKM_SUITE_PSK:
1496                                 val = WPA2_AUTH_PSK;
1497                                 break;
1498                         default:
1499                                 brcmf_err("invalid cipher group (%d)\n",
1500                                           sme->crypto.cipher_group);
1501                                 return -EINVAL;
1502                         }
1503                 }
1504
1505                 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val);
1506                 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev),
1507                                                "wpa_auth", val);
1508                 if (err) {
1509                         brcmf_err("could not set wpa_auth (%d)\n", err);
1510                         return err;
1511                 }
1512         }
1513         sec = &profile->sec;
1514         sec->wpa_auth = sme->crypto.akm_suites[0];
1515
1516         return err;
1517 }
1518
1519 static s32
1520 brcmf_set_sharedkey(struct net_device *ndev,
1521                     struct cfg80211_connect_params *sme)
1522 {
1523         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1524         struct brcmf_cfg80211_security *sec;
1525         struct brcmf_wsec_key key;
1526         s32 val;
1527         s32 err = 0;
1528
1529         brcmf_dbg(CONN, "key len (%d)\n", sme->key_len);
1530
1531         if (sme->key_len == 0)
1532                 return 0;
1533
1534         sec = &profile->sec;
1535         brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n",
1536                   sec->wpa_versions, sec->cipher_pairwise);
1537
1538         if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1539                 return 0;
1540
1541         if (!(sec->cipher_pairwise &
1542             (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1543                 return 0;
1544
1545         memset(&key, 0, sizeof(key));
1546         key.len = (u32) sme->key_len;
1547         key.index = (u32) sme->key_idx;
1548         if (key.len > sizeof(key.data)) {
1549                 brcmf_err("Too long key length (%u)\n", key.len);
1550                 return -EINVAL;
1551         }
1552         memcpy(key.data, sme->key, key.len);
1553         key.flags = BRCMF_PRIMARY_KEY;
1554         switch (sec->cipher_pairwise) {
1555         case WLAN_CIPHER_SUITE_WEP40:
1556                 key.algo = CRYPTO_ALGO_WEP1;
1557                 break;
1558         case WLAN_CIPHER_SUITE_WEP104:
1559                 key.algo = CRYPTO_ALGO_WEP128;
1560                 break;
1561         default:
1562                 brcmf_err("Invalid algorithm (%d)\n",
1563                           sme->crypto.ciphers_pairwise[0]);
1564                 return -EINVAL;
1565         }
1566         /* Set the new key/index */
1567         brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n",
1568                   key.len, key.index, key.algo);
1569         brcmf_dbg(CONN, "key \"%s\"\n", key.data);
1570         err = send_key_to_dongle(ndev, &key);
1571         if (err)
1572                 return err;
1573
1574         if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1575                 brcmf_dbg(CONN, "set auth_type to shared key\n");
1576                 val = WL_AUTH_SHARED_KEY;       /* shared key */
1577                 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1578                 if (err)
1579                         brcmf_err("set auth failed (%d)\n", err);
1580         }
1581         return err;
1582 }
1583
1584 static
1585 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
1586                                            enum nl80211_auth_type type)
1587 {
1588         if (type == NL80211_AUTHTYPE_AUTOMATIC &&
1589             brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) {
1590                 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n");
1591                 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1592         }
1593         return type;
1594 }
1595
1596 static s32
1597 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1598                        struct cfg80211_connect_params *sme)
1599 {
1600         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1601         struct brcmf_if *ifp = netdev_priv(ndev);
1602         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1603         struct ieee80211_channel *chan = sme->channel;
1604         struct brcmf_join_params join_params;
1605         size_t join_params_size;
1606         const struct brcmf_tlv *rsn_ie;
1607         const struct brcmf_vs_tlv *wpa_ie;
1608         const void *ie;
1609         u32 ie_len;
1610         struct brcmf_ext_join_params_le *ext_join_params;
1611         u16 chanspec;
1612         s32 err = 0;
1613
1614         brcmf_dbg(TRACE, "Enter\n");
1615         if (!check_vif_up(ifp->vif))
1616                 return -EIO;
1617
1618         if (!sme->ssid) {
1619                 brcmf_err("Invalid ssid\n");
1620                 return -EOPNOTSUPP;
1621         }
1622
1623         if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
1624                 /* A normal (non P2P) connection request setup. */
1625                 ie = NULL;
1626                 ie_len = 0;
1627                 /* find the WPA_IE */
1628                 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len);
1629                 if (wpa_ie) {
1630                         ie = wpa_ie;
1631                         ie_len = wpa_ie->len + TLV_HDR_LEN;
1632                 } else {
1633                         /* find the RSN_IE */
1634                         rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie,
1635                                                   sme->ie_len,
1636                                                   WLAN_EID_RSN);
1637                         if (rsn_ie) {
1638                                 ie = rsn_ie;
1639                                 ie_len = rsn_ie->len + TLV_HDR_LEN;
1640                         }
1641                 }
1642                 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len);
1643         }
1644
1645         err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG,
1646                                     sme->ie, sme->ie_len);
1647         if (err)
1648                 brcmf_err("Set Assoc REQ IE Failed\n");
1649         else
1650                 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n");
1651
1652         set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1653
1654         if (chan) {
1655                 cfg->channel =
1656                         ieee80211_frequency_to_channel(chan->center_freq);
1657                 chanspec = channel_to_chanspec(&cfg->d11inf, chan);
1658                 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
1659                           cfg->channel, chan->center_freq, chanspec);
1660         } else {
1661                 cfg->channel = 0;
1662                 chanspec = 0;
1663         }
1664
1665         brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1666
1667         err = brcmf_set_wpa_version(ndev, sme);
1668         if (err) {
1669                 brcmf_err("wl_set_wpa_version failed (%d)\n", err);
1670                 goto done;
1671         }
1672
1673         sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type);
1674         err = brcmf_set_auth_type(ndev, sme);
1675         if (err) {
1676                 brcmf_err("wl_set_auth_type failed (%d)\n", err);
1677                 goto done;
1678         }
1679
1680         err = brcmf_set_wsec_mode(ndev, sme, sme->mfp == NL80211_MFP_REQUIRED);
1681         if (err) {
1682                 brcmf_err("wl_set_set_cipher failed (%d)\n", err);
1683                 goto done;
1684         }
1685
1686         err = brcmf_set_key_mgmt(ndev, sme);
1687         if (err) {
1688                 brcmf_err("wl_set_key_mgmt failed (%d)\n", err);
1689                 goto done;
1690         }
1691
1692         err = brcmf_set_sharedkey(ndev, sme);
1693         if (err) {
1694                 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err);
1695                 goto done;
1696         }
1697
1698         profile->ssid.SSID_len = min_t(u32, (u32)sizeof(profile->ssid.SSID),
1699                                        (u32)sme->ssid_len);
1700         memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1701         if (profile->ssid.SSID_len < IEEE80211_MAX_SSID_LEN) {
1702                 profile->ssid.SSID[profile->ssid.SSID_len] = 0;
1703                 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", profile->ssid.SSID,
1704                           profile->ssid.SSID_len);
1705         }
1706
1707         /* Join with specific BSSID and cached SSID
1708          * If SSID is zero join based on BSSID only
1709          */
1710         join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) +
1711                 offsetof(struct brcmf_assoc_params_le, chanspec_list);
1712         if (cfg->channel)
1713                 join_params_size += sizeof(u16);
1714         ext_join_params = kzalloc(join_params_size, GFP_KERNEL);
1715         if (ext_join_params == NULL) {
1716                 err = -ENOMEM;
1717                 goto done;
1718         }
1719         ext_join_params->ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1720         memcpy(&ext_join_params->ssid_le.SSID, sme->ssid,
1721                profile->ssid.SSID_len);
1722
1723         /* Set up join scan parameters */
1724         ext_join_params->scan_le.scan_type = -1;
1725         ext_join_params->scan_le.home_time = cpu_to_le32(-1);
1726
1727         if (sme->bssid)
1728                 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
1729         else
1730                 memset(&ext_join_params->assoc_le.bssid, 0xFF, ETH_ALEN);
1731
1732         if (cfg->channel) {
1733                 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
1734
1735                 ext_join_params->assoc_le.chanspec_list[0] =
1736                         cpu_to_le16(chanspec);
1737                 /* Increase dwell time to receive probe response or detect
1738                  * beacon from target AP at a noisy air only during connect
1739                  * command.
1740                  */
1741                 ext_join_params->scan_le.active_time =
1742                         cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS);
1743                 ext_join_params->scan_le.passive_time =
1744                         cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS);
1745                 /* To sync with presence period of VSDB GO send probe request
1746                  * more frequently. Probe request will be stopped when it gets
1747                  * probe response from target AP/GO.
1748                  */
1749                 ext_join_params->scan_le.nprobes =
1750                         cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS /
1751                                     BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS);
1752         } else {
1753                 ext_join_params->scan_le.active_time = cpu_to_le32(-1);
1754                 ext_join_params->scan_le.passive_time = cpu_to_le32(-1);
1755                 ext_join_params->scan_le.nprobes = cpu_to_le32(-1);
1756         }
1757
1758         err  = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params,
1759                                          join_params_size);
1760         kfree(ext_join_params);
1761         if (!err)
1762                 /* This is it. join command worked, we are done */
1763                 goto done;
1764
1765         /* join command failed, fallback to set ssid */
1766         memset(&join_params, 0, sizeof(join_params));
1767         join_params_size = sizeof(join_params.ssid_le);
1768
1769         memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1770         join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1771
1772         if (sme->bssid)
1773                 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN);
1774         else
1775                 memset(join_params.params_le.bssid, 0xFF, ETH_ALEN);
1776
1777         if (cfg->channel) {
1778                 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1779                 join_params.params_le.chanspec_num = cpu_to_le32(1);
1780                 join_params_size += sizeof(join_params.params_le);
1781         }
1782         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1783                                      &join_params, join_params_size);
1784         if (err)
1785                 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err);
1786
1787 done:
1788         if (err)
1789                 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1790         brcmf_dbg(TRACE, "Exit\n");
1791         return err;
1792 }
1793
1794 static s32
1795 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1796                        u16 reason_code)
1797 {
1798         struct brcmf_if *ifp = netdev_priv(ndev);
1799         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1800         struct brcmf_scb_val_le scbval;
1801         s32 err = 0;
1802
1803         brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code);
1804         if (!check_vif_up(ifp->vif))
1805                 return -EIO;
1806
1807         clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1808         cfg80211_disconnected(ndev, reason_code, NULL, 0, GFP_KERNEL);
1809
1810         memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1811         scbval.val = cpu_to_le32(reason_code);
1812         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1813                                      &scbval, sizeof(scbval));
1814         if (err)
1815                 brcmf_err("error (%d)\n", err);
1816
1817         brcmf_dbg(TRACE, "Exit\n");
1818         return err;
1819 }
1820
1821 static s32
1822 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
1823                             enum nl80211_tx_power_setting type, s32 mbm)
1824 {
1825
1826         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1827         struct net_device *ndev = cfg_to_ndev(cfg);
1828         struct brcmf_if *ifp = netdev_priv(ndev);
1829         u16 txpwrmw;
1830         s32 err = 0;
1831         s32 disable = 0;
1832         s32 dbm = MBM_TO_DBM(mbm);
1833
1834         brcmf_dbg(TRACE, "Enter\n");
1835         if (!check_vif_up(ifp->vif))
1836                 return -EIO;
1837
1838         switch (type) {
1839         case NL80211_TX_POWER_AUTOMATIC:
1840                 break;
1841         case NL80211_TX_POWER_LIMITED:
1842         case NL80211_TX_POWER_FIXED:
1843                 if (dbm < 0) {
1844                         brcmf_err("TX_POWER_FIXED - dbm is negative\n");
1845                         err = -EINVAL;
1846                         goto done;
1847                 }
1848                 break;
1849         }
1850         /* Make sure radio is off or on as far as software is concerned */
1851         disable = WL_RADIO_SW_DISABLE << 16;
1852         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1853         if (err)
1854                 brcmf_err("WLC_SET_RADIO error (%d)\n", err);
1855
1856         if (dbm > 0xffff)
1857                 txpwrmw = 0xffff;
1858         else
1859                 txpwrmw = (u16) dbm;
1860         err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1861                                       (s32)brcmf_mw_to_qdbm(txpwrmw));
1862         if (err)
1863                 brcmf_err("qtxpower error (%d)\n", err);
1864         cfg->conf->tx_power = dbm;
1865
1866 done:
1867         brcmf_dbg(TRACE, "Exit\n");
1868         return err;
1869 }
1870
1871 static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy,
1872                                        struct wireless_dev *wdev,
1873                                        s32 *dbm)
1874 {
1875         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1876         struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
1877         s32 txpwrdbm;
1878         u8 result;
1879         s32 err = 0;
1880
1881         brcmf_dbg(TRACE, "Enter\n");
1882         if (!check_vif_up(ifp->vif))
1883                 return -EIO;
1884
1885         err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
1886         if (err) {
1887                 brcmf_err("error (%d)\n", err);
1888                 goto done;
1889         }
1890
1891         result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
1892         *dbm = (s32) brcmf_qdbm_to_mw(result);
1893
1894 done:
1895         brcmf_dbg(TRACE, "Exit\n");
1896         return err;
1897 }
1898
1899 static s32
1900 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
1901                                u8 key_idx, bool unicast, bool multicast)
1902 {
1903         struct brcmf_if *ifp = netdev_priv(ndev);
1904         u32 index;
1905         u32 wsec;
1906         s32 err = 0;
1907
1908         brcmf_dbg(TRACE, "Enter\n");
1909         brcmf_dbg(CONN, "key index (%d)\n", key_idx);
1910         if (!check_vif_up(ifp->vif))
1911                 return -EIO;
1912
1913         err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
1914         if (err) {
1915                 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
1916                 goto done;
1917         }
1918
1919         if (wsec & WEP_ENABLED) {
1920                 /* Just select a new current key */
1921                 index = key_idx;
1922                 err = brcmf_fil_cmd_int_set(ifp,
1923                                             BRCMF_C_SET_KEY_PRIMARY, index);
1924                 if (err)
1925                         brcmf_err("error (%d)\n", err);
1926         }
1927 done:
1928         brcmf_dbg(TRACE, "Exit\n");
1929         return err;
1930 }
1931
1932 static s32
1933 brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
1934               u8 key_idx, const u8 *mac_addr, struct key_params *params)
1935 {
1936         struct brcmf_if *ifp = netdev_priv(ndev);
1937         struct brcmf_wsec_key key;
1938         s32 err = 0;
1939         u8 keybuf[8];
1940
1941         memset(&key, 0, sizeof(key));
1942         key.index = (u32) key_idx;
1943         /* Instead of bcast for ea address for default wep keys,
1944                  driver needs it to be Null */
1945         if (!is_multicast_ether_addr(mac_addr))
1946                 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
1947         key.len = (u32) params->key_len;
1948         /* check for key index change */
1949         if (key.len == 0) {
1950                 /* key delete */
1951                 err = send_key_to_dongle(ndev, &key);
1952                 if (err)
1953                         brcmf_err("key delete error (%d)\n", err);
1954         } else {
1955                 if (key.len > sizeof(key.data)) {
1956                         brcmf_err("Invalid key length (%d)\n", key.len);
1957                         return -EINVAL;
1958                 }
1959
1960                 brcmf_dbg(CONN, "Setting the key index %d\n", key.index);
1961                 memcpy(key.data, params->key, key.len);
1962
1963                 if (!brcmf_is_apmode(ifp->vif) &&
1964                     (params->cipher == WLAN_CIPHER_SUITE_TKIP)) {
1965                         brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
1966                         memcpy(keybuf, &key.data[24], sizeof(keybuf));
1967                         memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
1968                         memcpy(&key.data[16], keybuf, sizeof(keybuf));
1969                 }
1970
1971                 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
1972                 if (params->seq && params->seq_len == 6) {
1973                         /* rx iv */
1974                         u8 *ivptr;
1975                         ivptr = (u8 *) params->seq;
1976                         key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
1977                             (ivptr[3] << 8) | ivptr[2];
1978                         key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
1979                         key.iv_initialized = true;
1980                 }
1981
1982                 switch (params->cipher) {
1983                 case WLAN_CIPHER_SUITE_WEP40:
1984                         key.algo = CRYPTO_ALGO_WEP1;
1985                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
1986                         break;
1987                 case WLAN_CIPHER_SUITE_WEP104:
1988                         key.algo = CRYPTO_ALGO_WEP128;
1989                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
1990                         break;
1991                 case WLAN_CIPHER_SUITE_TKIP:
1992                         key.algo = CRYPTO_ALGO_TKIP;
1993                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
1994                         break;
1995                 case WLAN_CIPHER_SUITE_AES_CMAC:
1996                         key.algo = CRYPTO_ALGO_AES_CCM;
1997                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
1998                         break;
1999                 case WLAN_CIPHER_SUITE_CCMP:
2000                         key.algo = CRYPTO_ALGO_AES_CCM;
2001                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2002                         break;
2003                 default:
2004                         brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2005                         return -EINVAL;
2006                 }
2007                 err = send_key_to_dongle(ndev, &key);
2008                 if (err)
2009                         brcmf_err("wsec_key error (%d)\n", err);
2010         }
2011         return err;
2012 }
2013
2014 static s32
2015 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
2016                     u8 key_idx, bool pairwise, const u8 *mac_addr,
2017                     struct key_params *params)
2018 {
2019         struct brcmf_if *ifp = netdev_priv(ndev);
2020         struct brcmf_wsec_key key;
2021         s32 val;
2022         s32 wsec;
2023         s32 err = 0;
2024         u8 keybuf[8];
2025
2026         brcmf_dbg(TRACE, "Enter\n");
2027         brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2028         if (!check_vif_up(ifp->vif))
2029                 return -EIO;
2030
2031         if (mac_addr &&
2032                 (params->cipher != WLAN_CIPHER_SUITE_WEP40) &&
2033                 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) {
2034                 brcmf_dbg(TRACE, "Exit");
2035                 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
2036         }
2037         memset(&key, 0, sizeof(key));
2038
2039         key.len = (u32) params->key_len;
2040         key.index = (u32) key_idx;
2041
2042         if (key.len > sizeof(key.data)) {
2043                 brcmf_err("Too long key length (%u)\n", key.len);
2044                 err = -EINVAL;
2045                 goto done;
2046         }
2047         memcpy(key.data, params->key, key.len);
2048
2049         key.flags = BRCMF_PRIMARY_KEY;
2050         switch (params->cipher) {
2051         case WLAN_CIPHER_SUITE_WEP40:
2052                 key.algo = CRYPTO_ALGO_WEP1;
2053                 val = WEP_ENABLED;
2054                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2055                 break;
2056         case WLAN_CIPHER_SUITE_WEP104:
2057                 key.algo = CRYPTO_ALGO_WEP128;
2058                 val = WEP_ENABLED;
2059                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2060                 break;
2061         case WLAN_CIPHER_SUITE_TKIP:
2062                 if (!brcmf_is_apmode(ifp->vif)) {
2063                         brcmf_dbg(CONN, "Swapping RX/TX MIC key\n");
2064                         memcpy(keybuf, &key.data[24], sizeof(keybuf));
2065                         memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
2066                         memcpy(&key.data[16], keybuf, sizeof(keybuf));
2067                 }
2068                 key.algo = CRYPTO_ALGO_TKIP;
2069                 val = TKIP_ENABLED;
2070                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2071                 break;
2072         case WLAN_CIPHER_SUITE_AES_CMAC:
2073                 key.algo = CRYPTO_ALGO_AES_CCM;
2074                 val = AES_ENABLED;
2075                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2076                 break;
2077         case WLAN_CIPHER_SUITE_CCMP:
2078                 key.algo = CRYPTO_ALGO_AES_CCM;
2079                 val = AES_ENABLED;
2080                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n");
2081                 break;
2082         default:
2083                 brcmf_err("Invalid cipher (0x%x)\n", params->cipher);
2084                 err = -EINVAL;
2085                 goto done;
2086         }
2087
2088         err = send_key_to_dongle(ndev, &key);
2089         if (err)
2090                 goto done;
2091
2092         err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2093         if (err) {
2094                 brcmf_err("get wsec error (%d)\n", err);
2095                 goto done;
2096         }
2097         wsec |= val;
2098         err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
2099         if (err) {
2100                 brcmf_err("set wsec error (%d)\n", err);
2101                 goto done;
2102         }
2103
2104 done:
2105         brcmf_dbg(TRACE, "Exit\n");
2106         return err;
2107 }
2108
2109 static s32
2110 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2111                     u8 key_idx, bool pairwise, const u8 *mac_addr)
2112 {
2113         struct brcmf_if *ifp = netdev_priv(ndev);
2114         struct brcmf_wsec_key key;
2115         s32 err = 0;
2116
2117         brcmf_dbg(TRACE, "Enter\n");
2118         if (!check_vif_up(ifp->vif))
2119                 return -EIO;
2120
2121         if (key_idx >= DOT11_MAX_DEFAULT_KEYS) {
2122                 /* we ignore this key index in this case */
2123                 brcmf_err("invalid key index (%d)\n", key_idx);
2124                 return -EINVAL;
2125         }
2126
2127         memset(&key, 0, sizeof(key));
2128
2129         key.index = (u32) key_idx;
2130         key.flags = BRCMF_PRIMARY_KEY;
2131         key.algo = CRYPTO_ALGO_OFF;
2132
2133         brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2134
2135         /* Set the new key/index */
2136         err = send_key_to_dongle(ndev, &key);
2137
2138         brcmf_dbg(TRACE, "Exit\n");
2139         return err;
2140 }
2141
2142 static s32
2143 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
2144                     u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
2145                     void (*callback) (void *cookie, struct key_params * params))
2146 {
2147         struct key_params params;
2148         struct brcmf_if *ifp = netdev_priv(ndev);
2149         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2150         struct brcmf_cfg80211_security *sec;
2151         s32 wsec;
2152         s32 err = 0;
2153
2154         brcmf_dbg(TRACE, "Enter\n");
2155         brcmf_dbg(CONN, "key index (%d)\n", key_idx);
2156         if (!check_vif_up(ifp->vif))
2157                 return -EIO;
2158
2159         memset(&params, 0, sizeof(params));
2160
2161         err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2162         if (err) {
2163                 brcmf_err("WLC_GET_WSEC error (%d)\n", err);
2164                 /* Ignore this error, may happen during DISASSOC */
2165                 err = -EAGAIN;
2166                 goto done;
2167         }
2168         if (wsec & WEP_ENABLED) {
2169                 sec = &profile->sec;
2170                 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2171                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
2172                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n");
2173                 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2174                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
2175                         brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n");
2176                 }
2177         } else if (wsec & TKIP_ENABLED) {
2178                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2179                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n");
2180         } else if (wsec & AES_ENABLED) {
2181                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2182                 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n");
2183         } else  {
2184                 brcmf_err("Invalid algo (0x%x)\n", wsec);
2185                 err = -EINVAL;
2186                 goto done;
2187         }
2188         callback(cookie, &params);
2189
2190 done:
2191         brcmf_dbg(TRACE, "Exit\n");
2192         return err;
2193 }
2194
2195 static s32
2196 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2197                                     struct net_device *ndev, u8 key_idx)
2198 {
2199         brcmf_dbg(INFO, "Not supported\n");
2200
2201         return -EOPNOTSUPP;
2202 }
2203
2204 static s32
2205 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2206                            const u8 *mac, struct station_info *sinfo)
2207 {
2208         struct brcmf_if *ifp = netdev_priv(ndev);
2209         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2210         struct brcmf_scb_val_le scb_val;
2211         int rssi;
2212         s32 rate;
2213         s32 err = 0;
2214         u8 *bssid = profile->bssid;
2215         struct brcmf_sta_info_le sta_info_le;
2216         u32 beacon_period;
2217         u32 dtim_period;
2218
2219         brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac);
2220         if (!check_vif_up(ifp->vif))
2221                 return -EIO;
2222
2223         if (brcmf_is_apmode(ifp->vif)) {
2224                 memcpy(&sta_info_le, mac, ETH_ALEN);
2225                 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2226                                                &sta_info_le,
2227                                                sizeof(sta_info_le));
2228                 if (err < 0) {
2229                         brcmf_err("GET STA INFO failed, %d\n", err);
2230                         goto done;
2231                 }
2232                 sinfo->filled = STATION_INFO_INACTIVE_TIME;
2233                 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2234                 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2235                         sinfo->filled |= STATION_INFO_CONNECTED_TIME;
2236                         sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2237                 }
2238                 brcmf_dbg(TRACE, "STA idle time : %d ms, connected time :%d sec\n",
2239                           sinfo->inactive_time, sinfo->connected_time);
2240         } else if (ifp->vif->wdev.iftype == NL80211_IFTYPE_STATION) {
2241                 if (memcmp(mac, bssid, ETH_ALEN)) {
2242                         brcmf_err("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2243                                   mac, bssid);
2244                         err = -ENOENT;
2245                         goto done;
2246                 }
2247                 /* Report the current tx rate */
2248                 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2249                 if (err) {
2250                         brcmf_err("Could not get rate (%d)\n", err);
2251                         goto done;
2252                 } else {
2253                         sinfo->filled |= STATION_INFO_TX_BITRATE;
2254                         sinfo->txrate.legacy = rate * 5;
2255                         brcmf_dbg(CONN, "Rate %d Mbps\n", rate / 2);
2256                 }
2257
2258                 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2259                              &ifp->vif->sme_state)) {
2260                         memset(&scb_val, 0, sizeof(scb_val));
2261                         err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2262                                                      &scb_val, sizeof(scb_val));
2263                         if (err) {
2264                                 brcmf_err("Could not get rssi (%d)\n", err);
2265                                 goto done;
2266                         } else {
2267                                 rssi = le32_to_cpu(scb_val.val);
2268                                 sinfo->filled |= STATION_INFO_SIGNAL;
2269                                 sinfo->signal = rssi;
2270                                 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi);
2271                         }
2272                         err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_BCNPRD,
2273                                                     &beacon_period);
2274                         if (err) {
2275                                 brcmf_err("Could not get beacon period (%d)\n",
2276                                           err);
2277                                 goto done;
2278                         } else {
2279                                 sinfo->bss_param.beacon_interval =
2280                                         beacon_period;
2281                                 brcmf_dbg(CONN, "Beacon peroid %d\n",
2282                                           beacon_period);
2283                         }
2284                         err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_DTIMPRD,
2285                                                     &dtim_period);
2286                         if (err) {
2287                                 brcmf_err("Could not get DTIM period (%d)\n",
2288                                           err);
2289                                 goto done;
2290                         } else {
2291                                 sinfo->bss_param.dtim_period = dtim_period;
2292                                 brcmf_dbg(CONN, "DTIM peroid %d\n",
2293                                           dtim_period);
2294                         }
2295                         sinfo->filled |= STATION_INFO_BSS_PARAM;
2296                 }
2297         } else
2298                 err = -EPERM;
2299 done:
2300         brcmf_dbg(TRACE, "Exit\n");
2301         return err;
2302 }
2303
2304 static s32
2305 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2306                            bool enabled, s32 timeout)
2307 {
2308         s32 pm;
2309         s32 err = 0;
2310         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2311         struct brcmf_if *ifp = netdev_priv(ndev);
2312
2313         brcmf_dbg(TRACE, "Enter\n");
2314
2315         /*
2316          * Powersave enable/disable request is coming from the
2317          * cfg80211 even before the interface is up. In that
2318          * scenario, driver will be storing the power save
2319          * preference in cfg struct to apply this to
2320          * FW later while initializing the dongle
2321          */
2322         cfg->pwr_save = enabled;
2323         if (!check_vif_up(ifp->vif)) {
2324
2325                 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n");
2326                 goto done;
2327         }
2328
2329         pm = enabled ? PM_FAST : PM_OFF;
2330         /* Do not enable the power save after assoc if it is a p2p interface */
2331         if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) {
2332                 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n");
2333                 pm = PM_OFF;
2334         }
2335         brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled"));
2336
2337         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2338         if (err) {
2339                 if (err == -ENODEV)
2340                         brcmf_err("net_device is not ready yet\n");
2341                 else
2342                         brcmf_err("error (%d)\n", err);
2343         }
2344 done:
2345         brcmf_dbg(TRACE, "Exit\n");
2346         return err;
2347 }
2348
2349 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2350                                    struct brcmf_bss_info_le *bi)
2351 {
2352         struct wiphy *wiphy = cfg_to_wiphy(cfg);
2353         struct ieee80211_channel *notify_channel;
2354         struct cfg80211_bss *bss;
2355         struct ieee80211_supported_band *band;
2356         struct brcmu_chan ch;
2357         u16 channel;
2358         u32 freq;
2359         u16 notify_capability;
2360         u16 notify_interval;
2361         u8 *notify_ie;
2362         size_t notify_ielen;
2363         s32 notify_signal;
2364
2365         if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2366                 brcmf_err("Bss info is larger than buffer. Discarding\n");
2367                 return 0;
2368         }
2369
2370         if (!bi->ctl_ch) {
2371                 ch.chspec = le16_to_cpu(bi->chanspec);
2372                 cfg->d11inf.decchspec(&ch);
2373                 bi->ctl_ch = ch.chnum;
2374         }
2375         channel = bi->ctl_ch;
2376
2377         if (channel <= CH_MAX_2G_CHANNEL)
2378                 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2379         else
2380                 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2381
2382         freq = ieee80211_channel_to_frequency(channel, band->band);
2383         notify_channel = ieee80211_get_channel(wiphy, freq);
2384
2385         notify_capability = le16_to_cpu(bi->capability);
2386         notify_interval = le16_to_cpu(bi->beacon_period);
2387         notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2388         notify_ielen = le32_to_cpu(bi->ie_length);
2389         notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2390
2391         brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID);
2392         brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq);
2393         brcmf_dbg(CONN, "Capability: %X\n", notify_capability);
2394         brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval);
2395         brcmf_dbg(CONN, "Signal: %d\n", notify_signal);
2396
2397         bss = cfg80211_inform_bss(wiphy, notify_channel,
2398                                   CFG80211_BSS_FTYPE_UNKNOWN,
2399                                   (const u8 *)bi->BSSID,
2400                                   0, notify_capability,
2401                                   notify_interval, notify_ie,
2402                                   notify_ielen, notify_signal,
2403                                   GFP_KERNEL);
2404
2405         if (!bss)
2406                 return -ENOMEM;
2407
2408         cfg80211_put_bss(wiphy, bss);
2409
2410         return 0;
2411 }
2412
2413 static struct brcmf_bss_info_le *
2414 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2415 {
2416         if (bss == NULL)
2417                 return list->bss_info_le;
2418         return (struct brcmf_bss_info_le *)((unsigned long)bss +
2419                                             le32_to_cpu(bss->length));
2420 }
2421
2422 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2423 {
2424         struct brcmf_scan_results *bss_list;
2425         struct brcmf_bss_info_le *bi = NULL;    /* must be initialized */
2426         s32 err = 0;
2427         int i;
2428
2429         bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
2430         if (bss_list->count != 0 &&
2431             bss_list->version != BRCMF_BSS_INFO_VERSION) {
2432                 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
2433                           bss_list->version);
2434                 return -EOPNOTSUPP;
2435         }
2436         brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count);
2437         for (i = 0; i < bss_list->count; i++) {
2438                 bi = next_bss_le(bss_list, bi);
2439                 err = brcmf_inform_single_bss(cfg, bi);
2440                 if (err)
2441                         break;
2442         }
2443         return err;
2444 }
2445
2446 static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2447                           struct net_device *ndev, const u8 *bssid)
2448 {
2449         struct wiphy *wiphy = cfg_to_wiphy(cfg);
2450         struct ieee80211_channel *notify_channel;
2451         struct brcmf_bss_info_le *bi = NULL;
2452         struct ieee80211_supported_band *band;
2453         struct cfg80211_bss *bss;
2454         struct brcmu_chan ch;
2455         u8 *buf = NULL;
2456         s32 err = 0;
2457         u32 freq;
2458         u16 notify_capability;
2459         u16 notify_interval;
2460         u8 *notify_ie;
2461         size_t notify_ielen;
2462         s32 notify_signal;
2463
2464         brcmf_dbg(TRACE, "Enter\n");
2465
2466         buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2467         if (buf == NULL) {
2468                 err = -ENOMEM;
2469                 goto CleanUp;
2470         }
2471
2472         *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2473
2474         err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2475                                      buf, WL_BSS_INFO_MAX);
2476         if (err) {
2477                 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err);
2478                 goto CleanUp;
2479         }
2480
2481         bi = (struct brcmf_bss_info_le *)(buf + 4);
2482
2483         ch.chspec = le16_to_cpu(bi->chanspec);
2484         cfg->d11inf.decchspec(&ch);
2485
2486         if (ch.band == BRCMU_CHAN_BAND_2G)
2487                 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2488         else
2489                 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2490
2491         freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
2492         notify_channel = ieee80211_get_channel(wiphy, freq);
2493
2494         notify_capability = le16_to_cpu(bi->capability);
2495         notify_interval = le16_to_cpu(bi->beacon_period);
2496         notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2497         notify_ielen = le32_to_cpu(bi->ie_length);
2498         notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2499
2500         brcmf_dbg(CONN, "channel: %d(%d)\n", ch.chnum, freq);
2501         brcmf_dbg(CONN, "capability: %X\n", notify_capability);
2502         brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
2503         brcmf_dbg(CONN, "signal: %d\n", notify_signal);
2504
2505         bss = cfg80211_inform_bss(wiphy, notify_channel,
2506                                   CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0,
2507                                   notify_capability, notify_interval,
2508                                   notify_ie, notify_ielen, notify_signal,
2509                                   GFP_KERNEL);
2510
2511         if (!bss) {
2512                 err = -ENOMEM;
2513                 goto CleanUp;
2514         }
2515
2516         cfg80211_put_bss(wiphy, bss);
2517
2518 CleanUp:
2519
2520         kfree(buf);
2521
2522         brcmf_dbg(TRACE, "Exit\n");
2523
2524         return err;
2525 }
2526
2527 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg,
2528                                  struct brcmf_if *ifp)
2529 {
2530         struct brcmf_cfg80211_profile *profile = ndev_to_prof(ifp->ndev);
2531         struct brcmf_bss_info_le *bi;
2532         struct brcmf_ssid *ssid;
2533         const struct brcmf_tlv *tim;
2534         u16 beacon_interval;
2535         u8 dtim_period;
2536         size_t ie_len;
2537         u8 *ie;
2538         s32 err = 0;
2539
2540         brcmf_dbg(TRACE, "Enter\n");
2541         if (brcmf_is_ibssmode(ifp->vif))
2542                 return err;
2543
2544         ssid = &profile->ssid;
2545
2546         *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2547         err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2548                                      cfg->extra_buf, WL_EXTRA_BUF_MAX);
2549         if (err) {
2550                 brcmf_err("Could not get bss info %d\n", err);
2551                 goto update_bss_info_out;
2552         }
2553
2554         bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2555         err = brcmf_inform_single_bss(cfg, bi);
2556         if (err)
2557                 goto update_bss_info_out;
2558
2559         ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2560         ie_len = le32_to_cpu(bi->ie_length);
2561         beacon_interval = le16_to_cpu(bi->beacon_period);
2562
2563         tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2564         if (tim)
2565                 dtim_period = tim->data[1];
2566         else {
2567                 /*
2568                 * active scan was done so we could not get dtim
2569                 * information out of probe response.
2570                 * so we speficially query dtim information to dongle.
2571                 */
2572                 u32 var;
2573                 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2574                 if (err) {
2575                         brcmf_err("wl dtim_assoc failed (%d)\n", err);
2576                         goto update_bss_info_out;
2577                 }
2578                 dtim_period = (u8)var;
2579         }
2580
2581 update_bss_info_out:
2582         brcmf_dbg(TRACE, "Exit");
2583         return err;
2584 }
2585
2586 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2587 {
2588         struct escan_info *escan = &cfg->escan_info;
2589
2590         set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2591         if (cfg->scan_request) {
2592                 escan->escan_state = WL_ESCAN_STATE_IDLE;
2593                 brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
2594         }
2595         clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2596         clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2597 }
2598
2599 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2600 {
2601         struct brcmf_cfg80211_info *cfg =
2602                         container_of(work, struct brcmf_cfg80211_info,
2603                                      escan_timeout_work);
2604
2605         brcmf_inform_bss(cfg);
2606         brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
2607 }
2608
2609 static void brcmf_escan_timeout(unsigned long data)
2610 {
2611         struct brcmf_cfg80211_info *cfg =
2612                         (struct brcmf_cfg80211_info *)data;
2613
2614         if (cfg->scan_request) {
2615                 brcmf_err("timer expired\n");
2616                 schedule_work(&cfg->escan_timeout_work);
2617         }
2618 }
2619
2620 static s32
2621 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
2622                               struct brcmf_bss_info_le *bss,
2623                               struct brcmf_bss_info_le *bss_info_le)
2624 {
2625         struct brcmu_chan ch_bss, ch_bss_info_le;
2626
2627         ch_bss.chspec = le16_to_cpu(bss->chanspec);
2628         cfg->d11inf.decchspec(&ch_bss);
2629         ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
2630         cfg->d11inf.decchspec(&ch_bss_info_le);
2631
2632         if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2633                 ch_bss.band == ch_bss_info_le.band &&
2634                 bss_info_le->SSID_len == bss->SSID_len &&
2635                 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2636                 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) ==
2637                         (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) {
2638                         s16 bss_rssi = le16_to_cpu(bss->RSSI);
2639                         s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2640
2641                         /* preserve max RSSI if the measurements are
2642                         * both on-channel or both off-channel
2643                         */
2644                         if (bss_info_rssi > bss_rssi)
2645                                 bss->RSSI = bss_info_le->RSSI;
2646                 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) &&
2647                         (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) {
2648                         /* preserve the on-channel rssi measurement
2649                         * if the new measurement is off channel
2650                         */
2651                         bss->RSSI = bss_info_le->RSSI;
2652                         bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL;
2653                 }
2654                 return 1;
2655         }
2656         return 0;
2657 }
2658
2659 static s32
2660 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
2661                              const struct brcmf_event_msg *e, void *data)
2662 {
2663         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2664         s32 status;
2665         struct brcmf_escan_result_le *escan_result_le;
2666         struct brcmf_bss_info_le *bss_info_le;
2667         struct brcmf_bss_info_le *bss = NULL;
2668         u32 bi_length;
2669         struct brcmf_scan_results *list;
2670         u32 i;
2671         bool aborted;
2672
2673         status = e->status;
2674
2675         if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2676                 brcmf_err("scan not ready, bssidx=%d\n", ifp->bssidx);
2677                 return -EPERM;
2678         }
2679
2680         if (status == BRCMF_E_STATUS_PARTIAL) {
2681                 brcmf_dbg(SCAN, "ESCAN Partial result\n");
2682                 escan_result_le = (struct brcmf_escan_result_le *) data;
2683                 if (!escan_result_le) {
2684                         brcmf_err("Invalid escan result (NULL pointer)\n");
2685                         goto exit;
2686                 }
2687                 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2688                         brcmf_err("Invalid bss_count %d: ignoring\n",
2689                                   escan_result_le->bss_count);
2690                         goto exit;
2691                 }
2692                 bss_info_le = &escan_result_le->bss_info_le;
2693
2694                 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
2695                         goto exit;
2696
2697                 if (!cfg->scan_request) {
2698                         brcmf_dbg(SCAN, "result without cfg80211 request\n");
2699                         goto exit;
2700                 }
2701
2702                 bi_length = le32_to_cpu(bss_info_le->length);
2703                 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2704                                         WL_ESCAN_RESULTS_FIXED_SIZE)) {
2705                         brcmf_err("Invalid bss_info length %d: ignoring\n",
2706                                   bi_length);
2707                         goto exit;
2708                 }
2709
2710                 if (!(cfg_to_wiphy(cfg)->interface_modes &
2711                                         BIT(NL80211_IFTYPE_ADHOC))) {
2712                         if (le16_to_cpu(bss_info_le->capability) &
2713                                                 WLAN_CAPABILITY_IBSS) {
2714                                 brcmf_err("Ignoring IBSS result\n");
2715                                 goto exit;
2716                         }
2717                 }
2718
2719                 list = (struct brcmf_scan_results *)
2720                                 cfg->escan_info.escan_buf;
2721                 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2722                         brcmf_err("Buffer is too small: ignoring\n");
2723                         goto exit;
2724                 }
2725
2726                 for (i = 0; i < list->count; i++) {
2727                         bss = bss ? (struct brcmf_bss_info_le *)
2728                                 ((unsigned char *)bss +
2729                                 le32_to_cpu(bss->length)) : list->bss_info_le;
2730                         if (brcmf_compare_update_same_bss(cfg, bss,
2731                                                           bss_info_le))
2732                                 goto exit;
2733                 }
2734                 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2735                         bss_info_le, bi_length);
2736                 list->version = le32_to_cpu(bss_info_le->version);
2737                 list->buflen += bi_length;
2738                 list->count++;
2739         } else {
2740                 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2741                 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
2742                         goto exit;
2743                 if (cfg->scan_request) {
2744                         brcmf_inform_bss(cfg);
2745                         aborted = status != BRCMF_E_STATUS_SUCCESS;
2746                         brcmf_notify_escan_complete(cfg, ifp, aborted, false);
2747                 } else
2748                         brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
2749                                   status);
2750         }
2751 exit:
2752         return 0;
2753 }
2754
2755 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2756 {
2757         brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT,
2758                             brcmf_cfg80211_escan_handler);
2759         cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2760         /* Init scan_timeout timer */
2761         init_timer(&cfg->escan_timeout);
2762         cfg->escan_timeout.data = (unsigned long) cfg;
2763         cfg->escan_timeout.function = brcmf_escan_timeout;
2764         INIT_WORK(&cfg->escan_timeout_work,
2765                   brcmf_cfg80211_escan_timeout_worker);
2766 }
2767
2768 static __always_inline void brcmf_delay(u32 ms)
2769 {
2770         if (ms < 1000 / HZ) {
2771                 cond_resched();
2772                 mdelay(ms);
2773         } else {
2774                 msleep(ms);
2775         }
2776 }
2777
2778 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2779 {
2780         brcmf_dbg(TRACE, "Enter\n");
2781
2782         return 0;
2783 }
2784
2785 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
2786                                   struct cfg80211_wowlan *wow)
2787 {
2788         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2789         struct net_device *ndev = cfg_to_ndev(cfg);
2790         struct brcmf_cfg80211_vif *vif;
2791
2792         brcmf_dbg(TRACE, "Enter\n");
2793
2794         /*
2795          * if the primary net_device is not READY there is nothing
2796          * we can do but pray resume goes smoothly.
2797          */
2798         vif = ((struct brcmf_if *)netdev_priv(ndev))->vif;
2799         if (!check_vif_up(vif))
2800                 goto exit;
2801
2802         list_for_each_entry(vif, &cfg->vif_list, list) {
2803                 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
2804                         continue;
2805                 /*
2806                  * While going to suspend if associated with AP disassociate
2807                  * from AP to save power while system is in suspended state
2808                  */
2809                 brcmf_link_down(vif);
2810
2811                 /* Make sure WPA_Supplicant receives all the event
2812                  * generated due to DISASSOC call to the fw to keep
2813                  * the state fw and WPA_Supplicant state consistent
2814                  */
2815                 brcmf_delay(500);
2816         }
2817
2818         /* end any scanning */
2819         if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
2820                 brcmf_abort_scanning(cfg);
2821
2822         /* Turn off watchdog timer */
2823         brcmf_set_mpc(netdev_priv(ndev), 1);
2824
2825 exit:
2826         brcmf_dbg(TRACE, "Exit\n");
2827         /* clear any scanning activity */
2828         cfg->scan_status = 0;
2829         return 0;
2830 }
2831
2832 static __used s32
2833 brcmf_update_pmklist(struct net_device *ndev,
2834                      struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
2835 {
2836         int i, j;
2837         int pmkid_len;
2838
2839         pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
2840
2841         brcmf_dbg(CONN, "No of elements %d\n", pmkid_len);
2842         for (i = 0; i < pmkid_len; i++) {
2843                 brcmf_dbg(CONN, "PMKID[%d]: %pM =\n", i,
2844                           &pmk_list->pmkids.pmkid[i].BSSID);
2845                 for (j = 0; j < WLAN_PMKID_LEN; j++)
2846                         brcmf_dbg(CONN, "%02x\n",
2847                                   pmk_list->pmkids.pmkid[i].PMKID[j]);
2848         }
2849
2850         if (!err)
2851                 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
2852                                          (char *)pmk_list, sizeof(*pmk_list));
2853
2854         return err;
2855 }
2856
2857 static s32
2858 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2859                          struct cfg80211_pmksa *pmksa)
2860 {
2861         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2862         struct brcmf_if *ifp = netdev_priv(ndev);
2863         struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
2864         s32 err = 0;
2865         int i;
2866         int pmkid_len;
2867
2868         brcmf_dbg(TRACE, "Enter\n");
2869         if (!check_vif_up(ifp->vif))
2870                 return -EIO;
2871
2872         pmkid_len = le32_to_cpu(pmkids->npmkid);
2873         for (i = 0; i < pmkid_len; i++)
2874                 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
2875                         break;
2876         if (i < WL_NUM_PMKIDS_MAX) {
2877                 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
2878                 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2879                 if (i == pmkid_len) {
2880                         pmkid_len++;
2881                         pmkids->npmkid = cpu_to_le32(pmkid_len);
2882                 }
2883         } else
2884                 err = -EINVAL;
2885
2886         brcmf_dbg(CONN, "set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
2887                   pmkids->pmkid[pmkid_len].BSSID);
2888         for (i = 0; i < WLAN_PMKID_LEN; i++)
2889                 brcmf_dbg(CONN, "%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
2890
2891         err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2892
2893         brcmf_dbg(TRACE, "Exit\n");
2894         return err;
2895 }
2896
2897 static s32
2898 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2899                       struct cfg80211_pmksa *pmksa)
2900 {
2901         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2902         struct brcmf_if *ifp = netdev_priv(ndev);
2903         struct pmkid_list pmkid;
2904         s32 err = 0;
2905         int i, pmkid_len;
2906
2907         brcmf_dbg(TRACE, "Enter\n");
2908         if (!check_vif_up(ifp->vif))
2909                 return -EIO;
2910
2911         memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
2912         memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2913
2914         brcmf_dbg(CONN, "del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
2915                   &pmkid.pmkid[0].BSSID);
2916         for (i = 0; i < WLAN_PMKID_LEN; i++)
2917                 brcmf_dbg(CONN, "%02x\n", pmkid.pmkid[0].PMKID[i]);
2918
2919         pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
2920         for (i = 0; i < pmkid_len; i++)
2921                 if (!memcmp
2922                     (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
2923                      ETH_ALEN))
2924                         break;
2925
2926         if ((pmkid_len > 0)
2927             && (i < pmkid_len)) {
2928                 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
2929                        sizeof(struct pmkid));
2930                 for (; i < (pmkid_len - 1); i++) {
2931                         memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
2932                                &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
2933                                ETH_ALEN);
2934                         memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
2935                                &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
2936                                WLAN_PMKID_LEN);
2937                 }
2938                 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
2939         } else
2940                 err = -EINVAL;
2941
2942         err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2943
2944         brcmf_dbg(TRACE, "Exit\n");
2945         return err;
2946
2947 }
2948
2949 static s32
2950 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
2951 {
2952         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2953         struct brcmf_if *ifp = netdev_priv(ndev);
2954         s32 err = 0;
2955
2956         brcmf_dbg(TRACE, "Enter\n");
2957         if (!check_vif_up(ifp->vif))
2958                 return -EIO;
2959
2960         memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
2961         err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
2962
2963         brcmf_dbg(TRACE, "Exit\n");
2964         return err;
2965
2966 }
2967
2968 /*
2969  * PFN result doesn't have all the info which are
2970  * required by the supplicant
2971  * (For e.g IEs) Do a target Escan so that sched scan results are reported
2972  * via wl_inform_single_bss in the required format. Escan does require the
2973  * scan request in the form of cfg80211_scan_request. For timebeing, create
2974  * cfg80211_scan_request one out of the received PNO event.
2975  */
2976 static s32
2977 brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
2978                                 const struct brcmf_event_msg *e, void *data)
2979 {
2980         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
2981         struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
2982         struct cfg80211_scan_request *request = NULL;
2983         struct cfg80211_ssid *ssid = NULL;
2984         struct ieee80211_channel *channel = NULL;
2985         struct wiphy *wiphy = cfg_to_wiphy(cfg);
2986         int err = 0;
2987         int channel_req = 0;
2988         int band = 0;
2989         struct brcmf_pno_scanresults_le *pfn_result;
2990         u32 result_count;
2991         u32 status;
2992
2993         brcmf_dbg(SCAN, "Enter\n");
2994
2995         if (e->event_code == BRCMF_E_PFN_NET_LOST) {
2996                 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n");
2997                 return 0;
2998         }
2999
3000         pfn_result = (struct brcmf_pno_scanresults_le *)data;
3001         result_count = le32_to_cpu(pfn_result->count);
3002         status = le32_to_cpu(pfn_result->status);
3003
3004         /*
3005          * PFN event is limited to fit 512 bytes so we may get
3006          * multiple NET_FOUND events. For now place a warning here.
3007          */
3008         WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
3009         brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count);
3010         if (result_count > 0) {
3011                 int i;
3012
3013                 request = kzalloc(sizeof(*request), GFP_KERNEL);
3014                 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
3015                 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
3016                 if (!request || !ssid || !channel) {
3017                         err = -ENOMEM;
3018                         goto out_err;
3019                 }
3020
3021                 request->wiphy = wiphy;
3022                 data += sizeof(struct brcmf_pno_scanresults_le);
3023                 netinfo_start = (struct brcmf_pno_net_info_le *)data;
3024
3025                 for (i = 0; i < result_count; i++) {
3026                         netinfo = &netinfo_start[i];
3027                         if (!netinfo) {
3028                                 brcmf_err("Invalid netinfo ptr. index: %d\n",
3029                                           i);
3030                                 err = -EINVAL;
3031                                 goto out_err;
3032                         }
3033
3034                         brcmf_dbg(SCAN, "SSID:%s Channel:%d\n",
3035                                   netinfo->SSID, netinfo->channel);
3036                         memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
3037                         ssid[i].ssid_len = netinfo->SSID_len;
3038                         request->n_ssids++;
3039
3040                         channel_req = netinfo->channel;
3041                         if (channel_req <= CH_MAX_2G_CHANNEL)
3042                                 band = NL80211_BAND_2GHZ;
3043                         else
3044                                 band = NL80211_BAND_5GHZ;
3045                         channel[i].center_freq =
3046                                 ieee80211_channel_to_frequency(channel_req,
3047                                                                band);
3048                         channel[i].band = band;
3049                         channel[i].flags |= IEEE80211_CHAN_NO_HT40;
3050                         request->channels[i] = &channel[i];
3051                         request->n_channels++;
3052                 }
3053
3054                 /* assign parsed ssid array */
3055                 if (request->n_ssids)
3056                         request->ssids = &ssid[0];
3057
3058                 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3059                         /* Abort any on-going scan */
3060                         brcmf_abort_scanning(cfg);
3061                 }
3062
3063                 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3064                 cfg->escan_info.run = brcmf_run_escan;
3065                 err = brcmf_do_escan(cfg, wiphy, ifp, request);
3066                 if (err) {
3067                         clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3068                         goto out_err;
3069                 }
3070                 cfg->sched_escan = true;
3071                 cfg->scan_request = request;
3072         } else {
3073                 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n");
3074                 goto out_err;
3075         }
3076
3077         kfree(ssid);
3078         kfree(channel);
3079         kfree(request);
3080         return 0;
3081
3082 out_err:
3083         kfree(ssid);
3084         kfree(channel);
3085         kfree(request);
3086         cfg80211_sched_scan_stopped(wiphy);
3087         return err;
3088 }
3089
3090 static int brcmf_dev_pno_clean(struct net_device *ndev)
3091 {
3092         int ret;
3093
3094         /* Disable pfn */
3095         ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3096         if (ret == 0) {
3097                 /* clear pfn */
3098                 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3099                                                NULL, 0);
3100         }
3101         if (ret < 0)
3102                 brcmf_err("failed code %d\n", ret);
3103
3104         return ret;
3105 }
3106
3107 static int brcmf_dev_pno_config(struct net_device *ndev)
3108 {
3109         struct brcmf_pno_param_le pfn_param;
3110
3111         memset(&pfn_param, 0, sizeof(pfn_param));
3112         pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3113
3114         /* set extra pno params */
3115         pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3116         pfn_param.repeat = BRCMF_PNO_REPEAT;
3117         pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3118
3119         /* set up pno scan fr */
3120         pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3121
3122         return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
3123                                         &pfn_param, sizeof(pfn_param));
3124 }
3125
3126 static int
3127 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3128                                 struct net_device *ndev,
3129                                 struct cfg80211_sched_scan_request *request)
3130 {
3131         struct brcmf_if *ifp = netdev_priv(ndev);
3132         struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3133         struct brcmf_pno_net_param_le pfn;
3134         int i;
3135         int ret = 0;
3136
3137         brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
3138                   request->n_match_sets, request->n_ssids);
3139         if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3140                 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
3141                 return -EAGAIN;
3142         }
3143         if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
3144                 brcmf_err("Scanning suppressed: status (%lu)\n",
3145                           cfg->scan_status);
3146                 return -EAGAIN;
3147         }
3148
3149         if (!request->n_ssids || !request->n_match_sets) {
3150                 brcmf_dbg(SCAN, "Invalid sched scan req!! n_ssids:%d\n",
3151                           request->n_ssids);
3152                 return -EINVAL;
3153         }
3154
3155         if (request->n_ssids > 0) {
3156                 for (i = 0; i < request->n_ssids; i++) {
3157                         /* Active scan req for ssids */
3158                         brcmf_dbg(SCAN, ">>> Active scan req for ssid (%s)\n",
3159                                   request->ssids[i].ssid);
3160
3161                         /*
3162                          * match_set ssids is a supert set of n_ssid list,
3163                          * so we need not add these set seperately.
3164                          */
3165                 }
3166         }
3167
3168         if (request->n_match_sets > 0) {
3169                 /* clean up everything */
3170                 ret = brcmf_dev_pno_clean(ndev);
3171                 if  (ret < 0) {
3172                         brcmf_err("failed error=%d\n", ret);
3173                         return ret;
3174                 }
3175
3176                 /* configure pno */
3177                 ret = brcmf_dev_pno_config(ndev);
3178                 if (ret < 0) {
3179                         brcmf_err("PNO setup failed!! ret=%d\n", ret);
3180                         return -EINVAL;
3181                 }
3182
3183                 /* configure each match set */
3184                 for (i = 0; i < request->n_match_sets; i++) {
3185                         struct cfg80211_ssid *ssid;
3186                         u32 ssid_len;
3187
3188                         ssid = &request->match_sets[i].ssid;
3189                         ssid_len = ssid->ssid_len;
3190
3191                         if (!ssid_len) {
3192                                 brcmf_err("skip broadcast ssid\n");
3193                                 continue;
3194                         }
3195                         pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3196                         pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3197                         pfn.wsec = cpu_to_le32(0);
3198                         pfn.infra = cpu_to_le32(1);
3199                         pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3200                         pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3201                         memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3202                         ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3203                                                        sizeof(pfn));
3204                         brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
3205                                   ret == 0 ? "set" : "failed", ssid->ssid);
3206                 }
3207                 /* Enable the PNO */
3208                 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3209                         brcmf_err("PNO enable failed!! ret=%d\n", ret);
3210                         return -EINVAL;
3211                 }
3212         } else {
3213                 return -EINVAL;
3214         }
3215
3216         return 0;
3217 }
3218
3219 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3220                                           struct net_device *ndev)
3221 {
3222         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3223
3224         brcmf_dbg(SCAN, "enter\n");
3225         brcmf_dev_pno_clean(ndev);
3226         if (cfg->sched_escan)
3227                 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true);
3228         return 0;
3229 }
3230
3231 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp)
3232 {
3233         s32 err;
3234
3235         /* set auth */
3236         err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3237         if (err < 0) {
3238                 brcmf_err("auth error %d\n", err);
3239                 return err;
3240         }
3241         /* set wsec */
3242         err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3243         if (err < 0) {
3244                 brcmf_err("wsec error %d\n", err);
3245                 return err;
3246         }
3247         /* set upper-layer auth */
3248         err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3249         if (err < 0) {
3250                 brcmf_err("wpa_auth error %d\n", err);
3251                 return err;
3252         }
3253
3254         return 0;
3255 }
3256
3257 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3258 {
3259         if (is_rsn_ie)
3260                 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3261
3262         return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3263 }
3264
3265 static s32
3266 brcmf_configure_wpaie(struct net_device *ndev,
3267                       const struct brcmf_vs_tlv *wpa_ie,
3268                       bool is_rsn_ie)
3269 {
3270         struct brcmf_if *ifp = netdev_priv(ndev);
3271         u32 auth = 0; /* d11 open authentication */
3272         u16 count;
3273         s32 err = 0;
3274         s32 len = 0;
3275         u32 i;
3276         u32 wsec;
3277         u32 pval = 0;
3278         u32 gval = 0;
3279         u32 wpa_auth = 0;
3280         u32 offset;
3281         u8 *data;
3282         u16 rsn_cap;
3283         u32 wme_bss_disable;
3284
3285         brcmf_dbg(TRACE, "Enter\n");
3286         if (wpa_ie == NULL)
3287                 goto exit;
3288
3289         len = wpa_ie->len + TLV_HDR_LEN;
3290         data = (u8 *)wpa_ie;
3291         offset = TLV_HDR_LEN;
3292         if (!is_rsn_ie)
3293                 offset += VS_IE_FIXED_HDR_LEN;
3294         else
3295                 offset += WPA_IE_VERSION_LEN;
3296
3297         /* check for multicast cipher suite */
3298         if (offset + WPA_IE_MIN_OUI_LEN > len) {
3299                 err = -EINVAL;
3300                 brcmf_err("no multicast cipher suite\n");
3301                 goto exit;
3302         }
3303
3304         if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3305                 err = -EINVAL;
3306                 brcmf_err("ivalid OUI\n");
3307                 goto exit;
3308         }
3309         offset += TLV_OUI_LEN;
3310
3311         /* pick up multicast cipher */
3312         switch (data[offset]) {
3313         case WPA_CIPHER_NONE:
3314                 gval = 0;
3315                 break;
3316         case WPA_CIPHER_WEP_40:
3317         case WPA_CIPHER_WEP_104:
3318                 gval = WEP_ENABLED;
3319                 break;
3320         case WPA_CIPHER_TKIP:
3321                 gval = TKIP_ENABLED;
3322                 break;
3323         case WPA_CIPHER_AES_CCM:
3324                 gval = AES_ENABLED;
3325                 break;
3326         default:
3327                 err = -EINVAL;
3328                 brcmf_err("Invalid multi cast cipher info\n");
3329                 goto exit;
3330         }
3331
3332         offset++;
3333         /* walk thru unicast cipher list and pick up what we recognize */
3334         count = data[offset] + (data[offset + 1] << 8);
3335         offset += WPA_IE_SUITE_COUNT_LEN;
3336         /* Check for unicast suite(s) */
3337         if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3338                 err = -EINVAL;
3339                 brcmf_err("no unicast cipher suite\n");
3340                 goto exit;
3341         }
3342         for (i = 0; i < count; i++) {
3343                 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3344                         err = -EINVAL;
3345                         brcmf_err("ivalid OUI\n");
3346                         goto exit;
3347                 }
3348                 offset += TLV_OUI_LEN;
3349                 switch (data[offset]) {
3350                 case WPA_CIPHER_NONE:
3351                         break;
3352                 case WPA_CIPHER_WEP_40:
3353                 case WPA_CIPHER_WEP_104:
3354                         pval |= WEP_ENABLED;
3355                         break;
3356                 case WPA_CIPHER_TKIP:
3357                         pval |= TKIP_ENABLED;
3358                         break;
3359                 case WPA_CIPHER_AES_CCM:
3360                         pval |= AES_ENABLED;
3361                         break;
3362                 default:
3363                         brcmf_err("Ivalid unicast security info\n");
3364                 }
3365                 offset++;
3366         }
3367         /* walk thru auth management suite list and pick up what we recognize */
3368         count = data[offset] + (data[offset + 1] << 8);
3369         offset += WPA_IE_SUITE_COUNT_LEN;
3370         /* Check for auth key management suite(s) */
3371         if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3372                 err = -EINVAL;
3373                 brcmf_err("no auth key mgmt suite\n");
3374                 goto exit;
3375         }
3376         for (i = 0; i < count; i++) {
3377                 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3378                         err = -EINVAL;
3379                         brcmf_err("ivalid OUI\n");
3380                         goto exit;
3381                 }
3382                 offset += TLV_OUI_LEN;
3383                 switch (data[offset]) {
3384                 case RSN_AKM_NONE:
3385                         brcmf_dbg(TRACE, "RSN_AKM_NONE\n");
3386                         wpa_auth |= WPA_AUTH_NONE;
3387                         break;
3388                 case RSN_AKM_UNSPECIFIED:
3389                         brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n");
3390                         is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3391                                     (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3392                         break;
3393                 case RSN_AKM_PSK:
3394                         brcmf_dbg(TRACE, "RSN_AKM_PSK\n");
3395                         is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3396                                     (wpa_auth |= WPA_AUTH_PSK);
3397                         break;
3398                 default:
3399                         brcmf_err("Ivalid key mgmt info\n");
3400                 }
3401                 offset++;
3402         }
3403
3404         if (is_rsn_ie) {
3405                 wme_bss_disable = 1;
3406                 if ((offset + RSN_CAP_LEN) <= len) {
3407                         rsn_cap = data[offset] + (data[offset + 1] << 8);
3408                         if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3409                                 wme_bss_disable = 0;
3410                 }
3411                 /* set wme_bss_disable to sync RSN Capabilities */
3412                 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3413                                                wme_bss_disable);
3414                 if (err < 0) {
3415                         brcmf_err("wme_bss_disable error %d\n", err);
3416                         goto exit;
3417                 }
3418         }
3419         /* FOR WPS , set SES_OW_ENABLED */
3420         wsec = (pval | gval | SES_OW_ENABLED);
3421
3422         /* set auth */
3423         err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3424         if (err < 0) {
3425                 brcmf_err("auth error %d\n", err);
3426                 goto exit;
3427         }
3428         /* set wsec */
3429         err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3430         if (err < 0) {
3431                 brcmf_err("wsec error %d\n", err);
3432                 goto exit;
3433         }
3434         /* set upper-layer auth */
3435         err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3436         if (err < 0) {
3437                 brcmf_err("wpa_auth error %d\n", err);
3438                 goto exit;
3439         }
3440
3441 exit:
3442         return err;
3443 }
3444
3445 static s32
3446 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
3447                      struct parsed_vndr_ies *vndr_ies)
3448 {
3449         struct brcmf_vs_tlv *vndrie;
3450         struct brcmf_tlv *ie;
3451         struct parsed_vndr_ie_info *parsed_info;
3452         s32 remaining_len;
3453
3454         remaining_len = (s32)vndr_ie_len;
3455         memset(vndr_ies, 0, sizeof(*vndr_ies));
3456
3457         ie = (struct brcmf_tlv *)vndr_ie_buf;
3458         while (ie) {
3459                 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3460                         goto next;
3461                 vndrie = (struct brcmf_vs_tlv *)ie;
3462                 /* len should be bigger than OUI length + one */
3463                 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3464                         brcmf_err("invalid vndr ie. length is too small %d\n",
3465                                   vndrie->len);
3466                         goto next;
3467                 }
3468                 /* if wpa or wme ie, do not add ie */
3469                 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3470                     ((vndrie->oui_type == WPA_OUI_TYPE) ||
3471                     (vndrie->oui_type == WME_OUI_TYPE))) {
3472                         brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n");
3473                         goto next;
3474                 }
3475
3476                 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3477
3478                 /* save vndr ie information */
3479                 parsed_info->ie_ptr = (char *)vndrie;
3480                 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3481                 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3482
3483                 vndr_ies->count++;
3484
3485                 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n",
3486                           parsed_info->vndrie.oui[0],
3487                           parsed_info->vndrie.oui[1],
3488                           parsed_info->vndrie.oui[2],
3489                           parsed_info->vndrie.oui_type);
3490
3491                 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
3492                         break;
3493 next:
3494                 remaining_len -= (ie->len + TLV_HDR_LEN);
3495                 if (remaining_len <= TLV_HDR_LEN)
3496                         ie = NULL;
3497                 else
3498                         ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len +
3499                                 TLV_HDR_LEN);
3500         }
3501         return 0;
3502 }
3503
3504 static u32
3505 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3506 {
3507
3508         __le32 iecount_le;
3509         __le32 pktflag_le;
3510
3511         strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3512         iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3513
3514         iecount_le = cpu_to_le32(1);
3515         memcpy(&iebuf[VNDR_IE_COUNT_OFFSET], &iecount_le, sizeof(iecount_le));
3516
3517         pktflag_le = cpu_to_le32(pktflag);
3518         memcpy(&iebuf[VNDR_IE_PKTFLAG_OFFSET], &pktflag_le, sizeof(pktflag_le));
3519
3520         memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3521
3522         return ie_len + VNDR_IE_HDR_SIZE;
3523 }
3524
3525 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
3526                           const u8 *vndr_ie_buf, u32 vndr_ie_len)
3527 {
3528         struct brcmf_if *ifp;
3529         struct vif_saved_ie *saved_ie;
3530         s32 err = 0;
3531         u8  *iovar_ie_buf;
3532         u8  *curr_ie_buf;
3533         u8  *mgmt_ie_buf = NULL;
3534         int mgmt_ie_buf_len;
3535         u32 *mgmt_ie_len;
3536         u32 del_add_ie_buf_len = 0;
3537         u32 total_ie_buf_len = 0;
3538         u32 parsed_ie_buf_len = 0;
3539         struct parsed_vndr_ies old_vndr_ies;
3540         struct parsed_vndr_ies new_vndr_ies;
3541         struct parsed_vndr_ie_info *vndrie_info;
3542         s32 i;
3543         u8 *ptr;
3544         int remained_buf_len;
3545
3546         if (!vif)
3547                 return -ENODEV;
3548         ifp = vif->ifp;
3549         saved_ie = &vif->saved_ie;
3550
3551         brcmf_dbg(TRACE, "bssidx %d, pktflag : 0x%02X\n", ifp->bssidx, pktflag);
3552         iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3553         if (!iovar_ie_buf)
3554                 return -ENOMEM;
3555         curr_ie_buf = iovar_ie_buf;
3556         switch (pktflag) {
3557         case BRCMF_VNDR_IE_PRBREQ_FLAG:
3558                 mgmt_ie_buf = saved_ie->probe_req_ie;
3559                 mgmt_ie_len = &saved_ie->probe_req_ie_len;
3560                 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
3561                 break;
3562         case BRCMF_VNDR_IE_PRBRSP_FLAG:
3563                 mgmt_ie_buf = saved_ie->probe_res_ie;
3564                 mgmt_ie_len = &saved_ie->probe_res_ie_len;
3565                 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
3566                 break;
3567         case BRCMF_VNDR_IE_BEACON_FLAG:
3568                 mgmt_ie_buf = saved_ie->beacon_ie;
3569                 mgmt_ie_len = &saved_ie->beacon_ie_len;
3570                 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
3571                 break;
3572         case BRCMF_VNDR_IE_ASSOCREQ_FLAG:
3573                 mgmt_ie_buf = saved_ie->assoc_req_ie;
3574                 mgmt_ie_len = &saved_ie->assoc_req_ie_len;
3575                 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie);
3576                 break;
3577         default:
3578                 err = -EPERM;
3579                 brcmf_err("not suitable type\n");
3580                 goto exit;
3581         }
3582
3583         if (vndr_ie_len > mgmt_ie_buf_len) {
3584                 err = -ENOMEM;
3585                 brcmf_err("extra IE size too big\n");
3586                 goto exit;
3587         }
3588
3589         /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3590         if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3591                 ptr = curr_ie_buf;
3592                 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3593                 for (i = 0; i < new_vndr_ies.count; i++) {
3594                         vndrie_info = &new_vndr_ies.ie_info[i];
3595                         memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3596                                vndrie_info->ie_len);
3597                         parsed_ie_buf_len += vndrie_info->ie_len;
3598                 }
3599         }
3600
3601         if (mgmt_ie_buf && *mgmt_ie_len) {
3602                 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3603                     (memcmp(mgmt_ie_buf, curr_ie_buf,
3604                             parsed_ie_buf_len) == 0)) {
3605                         brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n");
3606                         goto exit;
3607                 }
3608
3609                 /* parse old vndr_ie */
3610                 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3611
3612                 /* make a command to delete old ie */
3613                 for (i = 0; i < old_vndr_ies.count; i++) {
3614                         vndrie_info = &old_vndr_ies.ie_info[i];
3615
3616                         brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3617                                   vndrie_info->vndrie.id,
3618                                   vndrie_info->vndrie.len,
3619                                   vndrie_info->vndrie.oui[0],
3620                                   vndrie_info->vndrie.oui[1],
3621                                   vndrie_info->vndrie.oui[2]);
3622
3623                         del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3624                                                            vndrie_info->ie_ptr,
3625                                                            vndrie_info->ie_len,
3626                                                            "del");
3627                         curr_ie_buf += del_add_ie_buf_len;
3628                         total_ie_buf_len += del_add_ie_buf_len;
3629                 }
3630         }
3631
3632         *mgmt_ie_len = 0;
3633         /* Add if there is any extra IE */
3634         if (mgmt_ie_buf && parsed_ie_buf_len) {
3635                 ptr = mgmt_ie_buf;
3636
3637                 remained_buf_len = mgmt_ie_buf_len;
3638
3639                 /* make a command to add new ie */
3640                 for (i = 0; i < new_vndr_ies.count; i++) {
3641                         vndrie_info = &new_vndr_ies.ie_info[i];
3642
3643                         /* verify remained buf size before copy data */
3644                         if (remained_buf_len < (vndrie_info->vndrie.len +
3645                                                         VNDR_IE_VSIE_OFFSET)) {
3646                                 brcmf_err("no space in mgmt_ie_buf: len left %d",
3647                                           remained_buf_len);
3648                                 break;
3649                         }
3650                         remained_buf_len -= (vndrie_info->ie_len +
3651                                              VNDR_IE_VSIE_OFFSET);
3652
3653                         brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3654                                   vndrie_info->vndrie.id,
3655                                   vndrie_info->vndrie.len,
3656                                   vndrie_info->vndrie.oui[0],
3657                                   vndrie_info->vndrie.oui[1],
3658                                   vndrie_info->vndrie.oui[2]);
3659
3660                         del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3661                                                            vndrie_info->ie_ptr,
3662                                                            vndrie_info->ie_len,
3663                                                            "add");
3664
3665                         /* save the parsed IE in wl struct */
3666                         memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3667                                vndrie_info->ie_len);
3668                         *mgmt_ie_len += vndrie_info->ie_len;
3669
3670                         curr_ie_buf += del_add_ie_buf_len;
3671                         total_ie_buf_len += del_add_ie_buf_len;
3672                 }
3673         }
3674         if (total_ie_buf_len) {
3675                 err  = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3676                                                  total_ie_buf_len);
3677                 if (err)
3678                         brcmf_err("vndr ie set error : %d\n", err);
3679         }
3680
3681 exit:
3682         kfree(iovar_ie_buf);
3683         return err;
3684 }
3685
3686 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif)
3687 {
3688         s32 pktflags[] = {
3689                 BRCMF_VNDR_IE_PRBREQ_FLAG,
3690                 BRCMF_VNDR_IE_PRBRSP_FLAG,
3691                 BRCMF_VNDR_IE_BEACON_FLAG
3692         };
3693         int i;
3694
3695         for (i = 0; i < ARRAY_SIZE(pktflags); i++)
3696                 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0);
3697
3698         memset(&vif->saved_ie, 0, sizeof(vif->saved_ie));
3699         return 0;
3700 }
3701
3702 static s32
3703 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif,
3704                         struct cfg80211_beacon_data *beacon)
3705 {
3706         s32 err;
3707
3708         /* Set Beacon IEs to FW */
3709         err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG,
3710                                     beacon->tail, beacon->tail_len);
3711         if (err) {
3712                 brcmf_err("Set Beacon IE Failed\n");
3713                 return err;
3714         }
3715         brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n");
3716
3717         /* Set Probe Response IEs to FW */
3718         err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG,
3719                                     beacon->proberesp_ies,
3720                                     beacon->proberesp_ies_len);
3721         if (err)
3722                 brcmf_err("Set Probe Resp IE Failed\n");
3723         else
3724                 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n");
3725
3726         return err;
3727 }
3728
3729 static s32
3730 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3731                         struct cfg80211_ap_settings *settings)
3732 {
3733         s32 ie_offset;
3734         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3735         struct brcmf_if *ifp = netdev_priv(ndev);
3736         const struct brcmf_tlv *ssid_ie;
3737         struct brcmf_ssid_le ssid_le;
3738         s32 err = -EPERM;
3739         const struct brcmf_tlv *rsn_ie;
3740         const struct brcmf_vs_tlv *wpa_ie;
3741         struct brcmf_join_params join_params;
3742         enum nl80211_iftype dev_role;
3743         struct brcmf_fil_bss_enable_le bss_enable;
3744         u16 chanspec;
3745
3746         brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
3747                   settings->chandef.chan->hw_value,
3748                   settings->chandef.center_freq1, settings->chandef.width,
3749                   settings->beacon_interval, settings->dtim_period);
3750         brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
3751                   settings->ssid, settings->ssid_len, settings->auth_type,
3752                   settings->inactivity_timeout);
3753
3754         dev_role = ifp->vif->wdev.iftype;
3755
3756         memset(&ssid_le, 0, sizeof(ssid_le));
3757         if (settings->ssid == NULL || settings->ssid_len == 0) {
3758                 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
3759                 ssid_ie = brcmf_parse_tlvs(
3760                                 (u8 *)&settings->beacon.head[ie_offset],
3761                                 settings->beacon.head_len - ie_offset,
3762                                 WLAN_EID_SSID);
3763                 if (!ssid_ie)
3764                         return -EINVAL;
3765
3766                 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
3767                 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
3768                 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
3769         } else {
3770                 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
3771                 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
3772         }
3773
3774         brcmf_set_mpc(ifp, 0);
3775         brcmf_configure_arp_offload(ifp, false);
3776
3777         /* find the RSN_IE */
3778         rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
3779                                   settings->beacon.tail_len, WLAN_EID_RSN);
3780
3781         /* find the WPA_IE */
3782         wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
3783                                   settings->beacon.tail_len);
3784
3785         if ((wpa_ie != NULL || rsn_ie != NULL)) {
3786                 brcmf_dbg(TRACE, "WPA(2) IE is found\n");
3787                 if (wpa_ie != NULL) {
3788                         /* WPA IE */
3789                         err = brcmf_configure_wpaie(ndev, wpa_ie, false);
3790                         if (err < 0)
3791                                 goto exit;
3792                 } else {
3793                         /* RSN IE */
3794                         err = brcmf_configure_wpaie(ndev,
3795                                 (struct brcmf_vs_tlv *)rsn_ie, true);
3796                         if (err < 0)
3797                                 goto exit;
3798                 }
3799         } else {
3800                 brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
3801                 brcmf_configure_opensecurity(ifp);
3802         }
3803
3804         brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
3805
3806         chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef);
3807         err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
3808         if (err < 0) {
3809                 brcmf_err("Set Channel failed: chspec=%d, %d\n", chanspec, err);
3810                 goto exit;
3811         }
3812
3813         if (settings->beacon_interval) {
3814                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
3815                                             settings->beacon_interval);
3816                 if (err < 0) {
3817                         brcmf_err("Beacon Interval Set Error, %d\n", err);
3818                         goto exit;
3819                 }
3820         }
3821         if (settings->dtim_period) {
3822                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
3823                                             settings->dtim_period);
3824                 if (err < 0) {
3825                         brcmf_err("DTIM Interval Set Error, %d\n", err);
3826                         goto exit;
3827                 }
3828         }
3829
3830         if (dev_role == NL80211_IFTYPE_AP) {
3831                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
3832                 if (err < 0) {
3833                         brcmf_err("BRCMF_C_DOWN error %d\n", err);
3834                         goto exit;
3835                 }
3836                 brcmf_fil_iovar_int_set(ifp, "apsta", 0);
3837         }
3838
3839         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
3840         if (err < 0) {
3841                 brcmf_err("SET INFRA error %d\n", err);
3842                 goto exit;
3843         }
3844         if (dev_role == NL80211_IFTYPE_AP) {
3845                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
3846                 if (err < 0) {
3847                         brcmf_err("setting AP mode failed %d\n", err);
3848                         goto exit;
3849                 }
3850                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
3851                 if (err < 0) {
3852                         brcmf_err("BRCMF_C_UP error (%d)\n", err);
3853                         goto exit;
3854                 }
3855
3856                 memset(&join_params, 0, sizeof(join_params));
3857                 /* join parameters starts with ssid */
3858                 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
3859                 /* create softap */
3860                 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
3861                                              &join_params, sizeof(join_params));
3862                 if (err < 0) {
3863                         brcmf_err("SET SSID error (%d)\n", err);
3864                         goto exit;
3865                 }
3866                 brcmf_dbg(TRACE, "AP mode configuration complete\n");
3867         } else {
3868                 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
3869                                                 sizeof(ssid_le));
3870                 if (err < 0) {
3871                         brcmf_err("setting ssid failed %d\n", err);
3872                         goto exit;
3873                 }
3874                 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
3875                 bss_enable.enable = cpu_to_le32(1);
3876                 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
3877                                                sizeof(bss_enable));
3878                 if (err < 0) {
3879                         brcmf_err("bss_enable config failed %d\n", err);
3880                         goto exit;
3881                 }
3882
3883                 brcmf_dbg(TRACE, "GO mode configuration complete\n");
3884         }
3885         clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
3886         set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
3887
3888 exit:
3889         if (err) {
3890                 brcmf_set_mpc(ifp, 1);
3891                 brcmf_configure_arp_offload(ifp, true);
3892         }
3893         return err;
3894 }
3895
3896 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
3897 {
3898         struct brcmf_if *ifp = netdev_priv(ndev);
3899         s32 err;
3900         struct brcmf_fil_bss_enable_le bss_enable;
3901         struct brcmf_join_params join_params;
3902
3903         brcmf_dbg(TRACE, "Enter\n");
3904
3905         if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) {
3906                 /* Due to most likely deauths outstanding we sleep */
3907                 /* first to make sure they get processed by fw. */
3908                 msleep(400);
3909
3910                 memset(&join_params, 0, sizeof(join_params));
3911                 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
3912                                              &join_params, sizeof(join_params));
3913                 if (err < 0)
3914                         brcmf_err("SET SSID error (%d)\n", err);
3915                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
3916                 if (err < 0)
3917                         brcmf_err("BRCMF_C_UP error %d\n", err);
3918                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
3919                 if (err < 0)
3920                         brcmf_err("setting AP mode failed %d\n", err);
3921                 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
3922                 if (err < 0)
3923                         brcmf_err("setting INFRA mode failed %d\n", err);
3924         } else {
3925                 bss_enable.bsscfg_idx = cpu_to_le32(ifp->bssidx);
3926                 bss_enable.enable = cpu_to_le32(0);
3927                 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
3928                                                sizeof(bss_enable));
3929                 if (err < 0)
3930                         brcmf_err("bss_enable config failed %d\n", err);
3931         }
3932         brcmf_set_mpc(ifp, 1);
3933         brcmf_configure_arp_offload(ifp, true);
3934         set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
3935         clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
3936
3937         return err;
3938 }
3939
3940 static s32
3941 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev,
3942                              struct cfg80211_beacon_data *info)
3943 {
3944         struct brcmf_if *ifp = netdev_priv(ndev);
3945         s32 err;
3946
3947         brcmf_dbg(TRACE, "Enter\n");
3948
3949         err = brcmf_config_ap_mgmt_ie(ifp->vif, info);
3950
3951         return err;
3952 }
3953
3954 static int
3955 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
3956                            const u8 *mac)
3957 {
3958         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3959         struct brcmf_scb_val_le scbval;
3960         struct brcmf_if *ifp = netdev_priv(ndev);
3961         s32 err;
3962
3963         if (!mac)
3964                 return -EFAULT;
3965
3966         brcmf_dbg(TRACE, "Enter %pM\n", mac);
3967
3968         if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
3969                 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
3970         if (!check_vif_up(ifp->vif))
3971                 return -EIO;
3972
3973         memcpy(&scbval.ea, mac, ETH_ALEN);
3974         scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
3975         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
3976                                      &scbval, sizeof(scbval));
3977         if (err)
3978                 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
3979
3980         brcmf_dbg(TRACE, "Exit\n");
3981         return err;
3982 }
3983
3984
3985 static void
3986 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
3987                                    struct wireless_dev *wdev,
3988                                    u16 frame_type, bool reg)
3989 {
3990         struct brcmf_cfg80211_vif *vif;
3991         u16 mgmt_type;
3992
3993         brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
3994
3995         mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
3996         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
3997         if (reg)
3998                 vif->mgmt_rx_reg |= BIT(mgmt_type);
3999         else
4000                 vif->mgmt_rx_reg &= ~BIT(mgmt_type);
4001 }
4002
4003
4004 static int
4005 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
4006                        struct cfg80211_mgmt_tx_params *params, u64 *cookie)
4007 {
4008         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4009         struct ieee80211_channel *chan = params->chan;
4010         const u8 *buf = params->buf;
4011         size_t len = params->len;
4012         const struct ieee80211_mgmt *mgmt;
4013         struct brcmf_cfg80211_vif *vif;
4014         s32 err = 0;
4015         s32 ie_offset;
4016         s32 ie_len;
4017         struct brcmf_fil_action_frame_le *action_frame;
4018         struct brcmf_fil_af_params_le *af_params;
4019         bool ack;
4020         s32 chan_nr;
4021         u32 freq;
4022
4023         brcmf_dbg(TRACE, "Enter\n");
4024
4025         *cookie = 0;
4026
4027         mgmt = (const struct ieee80211_mgmt *)buf;
4028
4029         if (!ieee80211_is_mgmt(mgmt->frame_control)) {
4030                 brcmf_err("Driver only allows MGMT packet type\n");
4031                 return -EPERM;
4032         }
4033
4034         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4035
4036         if (ieee80211_is_probe_resp(mgmt->frame_control)) {
4037                 /* Right now the only reason to get a probe response */
4038                 /* is for p2p listen response or for p2p GO from     */
4039                 /* wpa_supplicant. Unfortunately the probe is send   */
4040                 /* on primary ndev, while dongle wants it on the p2p */
4041                 /* vif. Since this is only reason for a probe        */
4042                 /* response to be sent, the vif is taken from cfg.   */
4043                 /* If ever desired to send proberesp for non p2p     */
4044                 /* response then data should be checked for          */
4045                 /* "DIRECT-". Note in future supplicant will take    */
4046                 /* dedicated p2p wdev to do this and then this 'hack'*/
4047                 /* is not needed anymore.                            */
4048                 ie_offset =  DOT11_MGMT_HDR_LEN +
4049                              DOT11_BCN_PRB_FIXED_LEN;
4050                 ie_len = len - ie_offset;
4051                 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
4052                         vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4053                 err = brcmf_vif_set_mgmt_ie(vif,
4054                                             BRCMF_VNDR_IE_PRBRSP_FLAG,
4055                                             &buf[ie_offset],
4056                                             ie_len);
4057                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
4058                                         GFP_KERNEL);
4059         } else if (ieee80211_is_action(mgmt->frame_control)) {
4060                 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
4061                 if (af_params == NULL) {
4062                         brcmf_err("unable to allocate frame\n");
4063                         err = -ENOMEM;
4064                         goto exit;
4065                 }
4066                 action_frame = &af_params->action_frame;
4067                 /* Add the packet Id */
4068                 action_frame->packet_id = cpu_to_le32(*cookie);
4069                 /* Add BSSID */
4070                 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN);
4071                 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
4072                 /* Add the length exepted for 802.11 header  */
4073                 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
4074                 /* Add the channel. Use the one specified as parameter if any or
4075                  * the current one (got from the firmware) otherwise
4076                  */
4077                 if (chan)
4078                         freq = chan->center_freq;
4079                 else
4080                         brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
4081                                               &freq);
4082                 chan_nr = ieee80211_frequency_to_channel(freq);
4083                 af_params->channel = cpu_to_le32(chan_nr);
4084
4085                 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
4086                        le16_to_cpu(action_frame->len));
4087
4088                 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
4089                           *cookie, le16_to_cpu(action_frame->len), freq);
4090
4091                 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
4092                                                   af_params);
4093
4094                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
4095                                         GFP_KERNEL);
4096                 kfree(af_params);
4097         } else {
4098                 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control);
4099                 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%Zu\n", len);
4100         }
4101
4102 exit:
4103         return err;
4104 }
4105
4106
4107 static int
4108 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
4109                                         struct wireless_dev *wdev,
4110                                         u64 cookie)
4111 {
4112         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4113         struct brcmf_cfg80211_vif *vif;
4114         int err = 0;
4115
4116         brcmf_dbg(TRACE, "Enter p2p listen cancel\n");
4117
4118         vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
4119         if (vif == NULL) {
4120                 brcmf_err("No p2p device available for probe response\n");
4121                 err = -ENODEV;
4122                 goto exit;
4123         }
4124         brcmf_p2p_cancel_remain_on_channel(vif->ifp);
4125 exit:
4126         return err;
4127 }
4128
4129 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
4130                                            struct wireless_dev *wdev,
4131                                            enum nl80211_crit_proto_id proto,
4132                                            u16 duration)
4133 {
4134         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4135         struct brcmf_cfg80211_vif *vif;
4136
4137         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4138
4139         /* only DHCP support for now */
4140         if (proto != NL80211_CRIT_PROTO_DHCP)
4141                 return -EINVAL;
4142
4143         /* suppress and abort scanning */
4144         set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4145         brcmf_abort_scanning(cfg);
4146
4147         return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
4148 }
4149
4150 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
4151                                            struct wireless_dev *wdev)
4152 {
4153         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4154         struct brcmf_cfg80211_vif *vif;
4155
4156         vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
4157
4158         brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
4159         clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
4160 }
4161
4162 static s32
4163 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp,
4164                              const struct brcmf_event_msg *e, void *data)
4165 {
4166         switch (e->reason) {
4167         case BRCMF_E_REASON_TDLS_PEER_DISCOVERED:
4168                 brcmf_dbg(TRACE, "TDLS Peer Discovered\n");
4169                 break;
4170         case BRCMF_E_REASON_TDLS_PEER_CONNECTED:
4171                 brcmf_dbg(TRACE, "TDLS Peer Connected\n");
4172                 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4173                 break;
4174         case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED:
4175                 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n");
4176                 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4177                 break;
4178         }
4179
4180         return 0;
4181 }
4182
4183 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper)
4184 {
4185         int ret;
4186
4187         switch (oper) {
4188         case NL80211_TDLS_DISCOVERY_REQ:
4189                 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY;
4190                 break;
4191         case NL80211_TDLS_SETUP:
4192                 ret = BRCMF_TDLS_MANUAL_EP_CREATE;
4193                 break;
4194         case NL80211_TDLS_TEARDOWN:
4195                 ret = BRCMF_TDLS_MANUAL_EP_DELETE;
4196                 break;
4197         default:
4198                 brcmf_err("unsupported operation: %d\n", oper);
4199                 ret = -EOPNOTSUPP;
4200         }
4201         return ret;
4202 }
4203
4204 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy,
4205                                     struct net_device *ndev, const u8 *peer,
4206                                     enum nl80211_tdls_operation oper)
4207 {
4208         struct brcmf_if *ifp;
4209         struct brcmf_tdls_iovar_le info;
4210         int ret = 0;
4211
4212         ret = brcmf_convert_nl80211_tdls_oper(oper);
4213         if (ret < 0)
4214                 return ret;
4215
4216         ifp = netdev_priv(ndev);
4217         memset(&info, 0, sizeof(info));
4218         info.mode = (u8)ret;
4219         if (peer)
4220                 memcpy(info.ea, peer, ETH_ALEN);
4221
4222         ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint",
4223                                        &info, sizeof(info));
4224         if (ret < 0)
4225                 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret);
4226
4227         return ret;
4228 }
4229
4230 static struct cfg80211_ops wl_cfg80211_ops = {
4231         .add_virtual_intf = brcmf_cfg80211_add_iface,
4232         .del_virtual_intf = brcmf_cfg80211_del_iface,
4233         .change_virtual_intf = brcmf_cfg80211_change_iface,
4234         .scan = brcmf_cfg80211_scan,
4235         .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
4236         .join_ibss = brcmf_cfg80211_join_ibss,
4237         .leave_ibss = brcmf_cfg80211_leave_ibss,
4238         .get_station = brcmf_cfg80211_get_station,
4239         .set_tx_power = brcmf_cfg80211_set_tx_power,
4240         .get_tx_power = brcmf_cfg80211_get_tx_power,
4241         .add_key = brcmf_cfg80211_add_key,
4242         .del_key = brcmf_cfg80211_del_key,
4243         .get_key = brcmf_cfg80211_get_key,
4244         .set_default_key = brcmf_cfg80211_config_default_key,
4245         .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
4246         .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
4247         .connect = brcmf_cfg80211_connect,
4248         .disconnect = brcmf_cfg80211_disconnect,
4249         .suspend = brcmf_cfg80211_suspend,
4250         .resume = brcmf_cfg80211_resume,
4251         .set_pmksa = brcmf_cfg80211_set_pmksa,
4252         .del_pmksa = brcmf_cfg80211_del_pmksa,
4253         .flush_pmksa = brcmf_cfg80211_flush_pmksa,
4254         .start_ap = brcmf_cfg80211_start_ap,
4255         .stop_ap = brcmf_cfg80211_stop_ap,
4256         .change_beacon = brcmf_cfg80211_change_beacon,
4257         .del_station = brcmf_cfg80211_del_station,
4258         .sched_scan_start = brcmf_cfg80211_sched_scan_start,
4259         .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
4260         .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register,
4261         .mgmt_tx = brcmf_cfg80211_mgmt_tx,
4262         .remain_on_channel = brcmf_p2p_remain_on_channel,
4263         .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
4264         .start_p2p_device = brcmf_p2p_start_device,
4265         .stop_p2p_device = brcmf_p2p_stop_device,
4266         .crit_proto_start = brcmf_cfg80211_crit_proto_start,
4267         .crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
4268         .tdls_oper = brcmf_cfg80211_tdls_oper,
4269 };
4270
4271 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4272                                            enum nl80211_iftype type,
4273                                            bool pm_block)
4274 {
4275         struct brcmf_cfg80211_vif *vif;
4276
4277         brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
4278                   sizeof(*vif));
4279         vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4280         if (!vif)
4281                 return ERR_PTR(-ENOMEM);
4282
4283         vif->wdev.wiphy = cfg->wiphy;
4284         vif->wdev.iftype = type;
4285
4286         vif->pm_block = pm_block;
4287         vif->roam_off = -1;
4288
4289         brcmf_init_prof(&vif->profile);
4290
4291         list_add_tail(&vif->list, &cfg->vif_list);
4292         return vif;
4293 }
4294
4295 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
4296 {
4297         list_del(&vif->list);
4298         kfree(vif);
4299 }
4300
4301 void brcmf_cfg80211_free_netdev(struct net_device *ndev)
4302 {
4303         struct brcmf_cfg80211_vif *vif;
4304         struct brcmf_if *ifp;
4305
4306         ifp = netdev_priv(ndev);
4307         vif = ifp->vif;
4308
4309         brcmf_free_vif(vif);
4310         free_netdev(ndev);
4311 }
4312
4313 static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
4314 {
4315         u32 event = e->event_code;
4316         u32 status = e->status;
4317
4318         if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4319                 brcmf_dbg(CONN, "Processing set ssid\n");
4320                 return true;
4321         }
4322
4323         return false;
4324 }
4325
4326 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e)
4327 {
4328         u32 event = e->event_code;
4329         u16 flags = e->flags;
4330
4331         if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) ||
4332             (event == BRCMF_E_DISASSOC_IND) ||
4333             ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) {
4334                 brcmf_dbg(CONN, "Processing link down\n");
4335                 return true;
4336         }
4337         return false;
4338 }
4339
4340 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4341                                const struct brcmf_event_msg *e)
4342 {
4343         u32 event = e->event_code;
4344         u32 status = e->status;
4345
4346         if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4347                 brcmf_dbg(CONN, "Processing Link %s & no network found\n",
4348                           e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down");
4349                 return true;
4350         }
4351
4352         if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4353                 brcmf_dbg(CONN, "Processing connecting & no network found\n");
4354                 return true;
4355         }
4356
4357         return false;
4358 }
4359
4360 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4361 {
4362         struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4363
4364         kfree(conn_info->req_ie);
4365         conn_info->req_ie = NULL;
4366         conn_info->req_ie_len = 0;
4367         kfree(conn_info->resp_ie);
4368         conn_info->resp_ie = NULL;
4369         conn_info->resp_ie_len = 0;
4370 }
4371
4372 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg,
4373                                struct brcmf_if *ifp)
4374 {
4375         struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4376         struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4377         u32 req_len;
4378         u32 resp_len;
4379         s32 err = 0;
4380
4381         brcmf_clear_assoc_ies(cfg);
4382
4383         err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4384                                        cfg->extra_buf, WL_ASSOC_INFO_MAX);
4385         if (err) {
4386                 brcmf_err("could not get assoc info (%d)\n", err);
4387                 return err;
4388         }
4389         assoc_info =
4390                 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4391         req_len = le32_to_cpu(assoc_info->req_len);
4392         resp_len = le32_to_cpu(assoc_info->resp_len);
4393         if (req_len) {
4394                 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4395                                                cfg->extra_buf,
4396                                                WL_ASSOC_INFO_MAX);
4397                 if (err) {
4398                         brcmf_err("could not get assoc req (%d)\n", err);
4399                         return err;
4400                 }
4401                 conn_info->req_ie_len = req_len;
4402                 conn_info->req_ie =
4403                     kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4404                             GFP_KERNEL);
4405         } else {
4406                 conn_info->req_ie_len = 0;
4407                 conn_info->req_ie = NULL;
4408         }
4409         if (resp_len) {
4410                 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4411                                                cfg->extra_buf,
4412                                                WL_ASSOC_INFO_MAX);
4413                 if (err) {
4414                         brcmf_err("could not get assoc resp (%d)\n", err);
4415                         return err;
4416                 }
4417                 conn_info->resp_ie_len = resp_len;
4418                 conn_info->resp_ie =
4419                     kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4420                             GFP_KERNEL);
4421         } else {
4422                 conn_info->resp_ie_len = 0;
4423                 conn_info->resp_ie = NULL;
4424         }
4425         brcmf_dbg(CONN, "req len (%d) resp len (%d)\n",
4426                   conn_info->req_ie_len, conn_info->resp_ie_len);
4427
4428         return err;
4429 }
4430
4431 static s32
4432 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4433                        struct net_device *ndev,
4434                        const struct brcmf_event_msg *e)
4435 {
4436         struct brcmf_if *ifp = netdev_priv(ndev);
4437         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4438         struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4439         struct wiphy *wiphy = cfg_to_wiphy(cfg);
4440         struct ieee80211_channel *notify_channel = NULL;
4441         struct ieee80211_supported_band *band;
4442         struct brcmf_bss_info_le *bi;
4443         struct brcmu_chan ch;
4444         u32 freq;
4445         s32 err = 0;
4446         u8 *buf;
4447
4448         brcmf_dbg(TRACE, "Enter\n");
4449
4450         brcmf_get_assoc_ies(cfg, ifp);
4451         memcpy(profile->bssid, e->addr, ETH_ALEN);
4452         brcmf_update_bss_info(cfg, ifp);
4453
4454         buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4455         if (buf == NULL) {
4456                 err = -ENOMEM;
4457                 goto done;
4458         }
4459
4460         /* data sent to dongle has to be little endian */
4461         *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4462         err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4463                                      buf, WL_BSS_INFO_MAX);
4464
4465         if (err)
4466                 goto done;
4467
4468         bi = (struct brcmf_bss_info_le *)(buf + 4);
4469         ch.chspec = le16_to_cpu(bi->chanspec);
4470         cfg->d11inf.decchspec(&ch);
4471
4472         if (ch.band == BRCMU_CHAN_BAND_2G)
4473                 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4474         else
4475                 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4476
4477         freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
4478         notify_channel = ieee80211_get_channel(wiphy, freq);
4479
4480 done:
4481         kfree(buf);
4482         cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4483                         conn_info->req_ie, conn_info->req_ie_len,
4484                         conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4485         brcmf_dbg(CONN, "Report roaming result\n");
4486
4487         set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4488         brcmf_dbg(TRACE, "Exit\n");
4489         return err;
4490 }
4491
4492 static s32
4493 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4494                        struct net_device *ndev, const struct brcmf_event_msg *e,
4495                        bool completed)
4496 {
4497         struct brcmf_if *ifp = netdev_priv(ndev);
4498         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4499         struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4500
4501         brcmf_dbg(TRACE, "Enter\n");
4502
4503         if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4504                                &ifp->vif->sme_state)) {
4505                 if (completed) {
4506                         brcmf_get_assoc_ies(cfg, ifp);
4507                         memcpy(profile->bssid, e->addr, ETH_ALEN);
4508                         brcmf_update_bss_info(cfg, ifp);
4509                         set_bit(BRCMF_VIF_STATUS_CONNECTED,
4510                                 &ifp->vif->sme_state);
4511                 }
4512                 cfg80211_connect_result(ndev,
4513                                         (u8 *)profile->bssid,
4514                                         conn_info->req_ie,
4515                                         conn_info->req_ie_len,
4516                                         conn_info->resp_ie,
4517                                         conn_info->resp_ie_len,
4518                                         completed ? WLAN_STATUS_SUCCESS :
4519                                                     WLAN_STATUS_AUTH_TIMEOUT,
4520                                         GFP_KERNEL);
4521                 brcmf_dbg(CONN, "Report connect result - connection %s\n",
4522                           completed ? "succeeded" : "failed");
4523         }
4524         brcmf_dbg(TRACE, "Exit\n");
4525         return 0;
4526 }
4527
4528 static s32
4529 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4530                                struct net_device *ndev,
4531                                const struct brcmf_event_msg *e, void *data)
4532 {
4533         static int generation;
4534         u32 event = e->event_code;
4535         u32 reason = e->reason;
4536         struct station_info sinfo;
4537
4538         brcmf_dbg(CONN, "event %d, reason %d\n", event, reason);
4539         if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS &&
4540             ndev != cfg_to_ndev(cfg)) {
4541                 brcmf_dbg(CONN, "AP mode link down\n");
4542                 complete(&cfg->vif_disabled);
4543                 return 0;
4544         }
4545
4546         if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4547             (reason == BRCMF_E_STATUS_SUCCESS)) {
4548                 memset(&sinfo, 0, sizeof(sinfo));
4549                 sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
4550                 if (!data) {
4551                         brcmf_err("No IEs present in ASSOC/REASSOC_IND");
4552                         return -EINVAL;
4553                 }
4554                 sinfo.assoc_req_ies = data;
4555                 sinfo.assoc_req_ies_len = e->datalen;
4556                 generation++;
4557                 sinfo.generation = generation;
4558                 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL);
4559         } else if ((event == BRCMF_E_DISASSOC_IND) ||
4560                    (event == BRCMF_E_DEAUTH_IND) ||
4561                    (event == BRCMF_E_DEAUTH)) {
4562                 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL);
4563         }
4564         return 0;
4565 }
4566
4567 static s32
4568 brcmf_notify_connect_status(struct brcmf_if *ifp,
4569                             const struct brcmf_event_msg *e, void *data)
4570 {
4571         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4572         struct net_device *ndev = ifp->ndev;
4573         struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4574         struct ieee80211_channel *chan;
4575         s32 err = 0;
4576
4577         if ((e->event_code == BRCMF_E_DEAUTH) ||
4578             (e->event_code == BRCMF_E_DEAUTH_IND) ||
4579             (e->event_code == BRCMF_E_DISASSOC_IND) ||
4580             ((e->event_code == BRCMF_E_LINK) && (!e->flags))) {
4581                 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr);
4582         }
4583
4584         if (brcmf_is_apmode(ifp->vif)) {
4585                 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4586         } else if (brcmf_is_linkup(e)) {
4587                 brcmf_dbg(CONN, "Linkup\n");
4588                 if (brcmf_is_ibssmode(ifp->vif)) {
4589                         chan = ieee80211_get_channel(cfg->wiphy, cfg->channel);
4590                         memcpy(profile->bssid, e->addr, ETH_ALEN);
4591                         wl_inform_ibss(cfg, ndev, e->addr);
4592                         cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL);
4593                         clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4594                                   &ifp->vif->sme_state);
4595                         set_bit(BRCMF_VIF_STATUS_CONNECTED,
4596                                 &ifp->vif->sme_state);
4597                 } else
4598                         brcmf_bss_connect_done(cfg, ndev, e, true);
4599         } else if (brcmf_is_linkdown(e)) {
4600                 brcmf_dbg(CONN, "Linkdown\n");
4601                 if (!brcmf_is_ibssmode(ifp->vif)) {
4602                         brcmf_bss_connect_done(cfg, ndev, e, false);
4603                 }
4604                 brcmf_link_down(ifp->vif);
4605                 brcmf_init_prof(ndev_to_prof(ndev));
4606                 if (ndev != cfg_to_ndev(cfg))
4607                         complete(&cfg->vif_disabled);
4608         } else if (brcmf_is_nonetwork(cfg, e)) {
4609                 if (brcmf_is_ibssmode(ifp->vif))
4610                         clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4611                                   &ifp->vif->sme_state);
4612                 else
4613                         brcmf_bss_connect_done(cfg, ndev, e, false);
4614         }
4615
4616         return err;
4617 }
4618
4619 static s32
4620 brcmf_notify_roaming_status(struct brcmf_if *ifp,
4621                             const struct brcmf_event_msg *e, void *data)
4622 {
4623         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4624         u32 event = e->event_code;
4625         u32 status = e->status;
4626
4627         if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4628                 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4629                         brcmf_bss_roaming_done(cfg, ifp->ndev, e);
4630                 else
4631                         brcmf_bss_connect_done(cfg, ifp->ndev, e, true);
4632         }
4633
4634         return 0;
4635 }
4636
4637 static s32
4638 brcmf_notify_mic_status(struct brcmf_if *ifp,
4639                         const struct brcmf_event_msg *e, void *data)
4640 {
4641         u16 flags = e->flags;
4642         enum nl80211_key_type key_type;
4643
4644         if (flags & BRCMF_EVENT_MSG_GROUP)
4645                 key_type = NL80211_KEYTYPE_GROUP;
4646         else
4647                 key_type = NL80211_KEYTYPE_PAIRWISE;
4648
4649         cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1,
4650                                      NULL, GFP_KERNEL);
4651
4652         return 0;
4653 }
4654
4655 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
4656                                   const struct brcmf_event_msg *e, void *data)
4657 {
4658         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
4659         struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data;
4660         struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
4661         struct brcmf_cfg80211_vif *vif;
4662
4663         brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfg %u\n",
4664                   ifevent->action, ifevent->flags, ifevent->ifidx,
4665                   ifevent->bssidx);
4666
4667         mutex_lock(&event->vif_event_lock);
4668         event->action = ifevent->action;
4669         vif = event->vif;
4670
4671         switch (ifevent->action) {
4672         case BRCMF_E_IF_ADD:
4673                 /* waiting process may have timed out */
4674                 if (!cfg->vif_event.vif) {
4675                         mutex_unlock(&event->vif_event_lock);
4676                         return -EBADF;
4677                 }
4678
4679                 ifp->vif = vif;
4680                 vif->ifp = ifp;
4681                 if (ifp->ndev) {
4682                         vif->wdev.netdev = ifp->ndev;
4683                         ifp->ndev->ieee80211_ptr = &vif->wdev;
4684                         SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
4685                 }
4686                 mutex_unlock(&event->vif_event_lock);
4687                 wake_up(&event->vif_wq);
4688                 return 0;
4689
4690         case BRCMF_E_IF_DEL:
4691                 mutex_unlock(&event->vif_event_lock);
4692                 /* event may not be upon user request */
4693                 if (brcmf_cfg80211_vif_event_armed(cfg))
4694                         wake_up(&event->vif_wq);
4695                 return 0;
4696
4697         case BRCMF_E_IF_CHANGE:
4698                 mutex_unlock(&event->vif_event_lock);
4699                 wake_up(&event->vif_wq);
4700                 return 0;
4701
4702         default:
4703                 mutex_unlock(&event->vif_event_lock);
4704                 break;
4705         }
4706         return -EINVAL;
4707 }
4708
4709 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
4710 {
4711         conf->frag_threshold = (u32)-1;
4712         conf->rts_threshold = (u32)-1;
4713         conf->retry_short = (u32)-1;
4714         conf->retry_long = (u32)-1;
4715         conf->tx_power = -1;
4716 }
4717
4718 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
4719 {
4720         brcmf_fweh_register(cfg->pub, BRCMF_E_LINK,
4721                             brcmf_notify_connect_status);
4722         brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND,
4723                             brcmf_notify_connect_status);
4724         brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH,
4725                             brcmf_notify_connect_status);
4726         brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND,
4727                             brcmf_notify_connect_status);
4728         brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND,
4729                             brcmf_notify_connect_status);
4730         brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND,
4731                             brcmf_notify_connect_status);
4732         brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM,
4733                             brcmf_notify_roaming_status);
4734         brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR,
4735                             brcmf_notify_mic_status);
4736         brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID,
4737                             brcmf_notify_connect_status);
4738         brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND,
4739                             brcmf_notify_sched_scan_results);
4740         brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
4741                             brcmf_notify_vif_event);
4742         brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
4743                             brcmf_p2p_notify_rx_mgmt_p2p_probereq);
4744         brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
4745                             brcmf_p2p_notify_listen_complete);
4746         brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
4747                             brcmf_p2p_notify_action_frame_rx);
4748         brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
4749                             brcmf_p2p_notify_action_tx_complete);
4750         brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
4751                             brcmf_p2p_notify_action_tx_complete);
4752 }
4753
4754 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
4755 {
4756         kfree(cfg->conf);
4757         cfg->conf = NULL;
4758         kfree(cfg->escan_ioctl_buf);
4759         cfg->escan_ioctl_buf = NULL;
4760         kfree(cfg->extra_buf);
4761         cfg->extra_buf = NULL;
4762         kfree(cfg->pmk_list);
4763         cfg->pmk_list = NULL;
4764 }
4765
4766 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
4767 {
4768         cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
4769         if (!cfg->conf)
4770                 goto init_priv_mem_out;
4771         cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
4772         if (!cfg->escan_ioctl_buf)
4773                 goto init_priv_mem_out;
4774         cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
4775         if (!cfg->extra_buf)
4776                 goto init_priv_mem_out;
4777         cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
4778         if (!cfg->pmk_list)
4779                 goto init_priv_mem_out;
4780
4781         return 0;
4782
4783 init_priv_mem_out:
4784         brcmf_deinit_priv_mem(cfg);
4785
4786         return -ENOMEM;
4787 }
4788
4789 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
4790 {
4791         s32 err = 0;
4792
4793         cfg->scan_request = NULL;
4794         cfg->pwr_save = true;
4795         cfg->active_scan = true;        /* we do active scan per default */
4796         cfg->dongle_up = false;         /* dongle is not up yet */
4797         err = brcmf_init_priv_mem(cfg);
4798         if (err)
4799                 return err;
4800         brcmf_register_event_handlers(cfg);
4801         mutex_init(&cfg->usr_sync);
4802         brcmf_init_escan(cfg);
4803         brcmf_init_conf(cfg->conf);
4804         init_completion(&cfg->vif_disabled);
4805         return err;
4806 }
4807
4808 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
4809 {
4810         cfg->dongle_up = false; /* dongle down */
4811         brcmf_abort_scanning(cfg);
4812         brcmf_deinit_priv_mem(cfg);
4813 }
4814
4815 static void init_vif_event(struct brcmf_cfg80211_vif_event *event)
4816 {
4817         init_waitqueue_head(&event->vif_wq);
4818         mutex_init(&event->vif_event_lock);
4819 }
4820
4821 static s32
4822 brcmf_dongle_roam(struct brcmf_if *ifp, u32 bcn_timeout)
4823 {
4824         s32 err = 0;
4825         __le32 roamtrigger[2];
4826         __le32 roam_delta[2];
4827
4828         /*
4829          * Setup timeout if Beacons are lost and roam is
4830          * off to report link down
4831          */
4832         if (brcmf_roamoff) {
4833                 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
4834                 if (err) {
4835                         brcmf_err("bcn_timeout error (%d)\n", err);
4836                         goto dongle_rom_out;
4837                 }
4838         }
4839
4840         /*
4841          * Enable/Disable built-in roaming to allow supplicant
4842          * to take care of roaming
4843          */
4844         brcmf_dbg(INFO, "Internal Roaming = %s\n",
4845                   brcmf_roamoff ? "Off" : "On");
4846         err = brcmf_fil_iovar_int_set(ifp, "roam_off", !!(brcmf_roamoff));
4847         if (err) {
4848                 brcmf_err("roam_off error (%d)\n", err);
4849                 goto dongle_rom_out;
4850         }
4851
4852         roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
4853         roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
4854         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
4855                                      (void *)roamtrigger, sizeof(roamtrigger));
4856         if (err) {
4857                 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
4858                 goto dongle_rom_out;
4859         }
4860
4861         roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
4862         roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
4863         err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
4864                                      (void *)roam_delta, sizeof(roam_delta));
4865         if (err) {
4866                 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
4867                 goto dongle_rom_out;
4868         }
4869
4870 dongle_rom_out:
4871         return err;
4872 }
4873
4874 static s32
4875 brcmf_dongle_scantime(struct brcmf_if *ifp, s32 scan_assoc_time,
4876                       s32 scan_unassoc_time, s32 scan_passive_time)
4877 {
4878         s32 err = 0;
4879
4880         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
4881                                     scan_assoc_time);
4882         if (err) {
4883                 if (err == -EOPNOTSUPP)
4884                         brcmf_dbg(INFO, "Scan assoc time is not supported\n");
4885                 else
4886                         brcmf_err("Scan assoc time error (%d)\n", err);
4887                 goto dongle_scantime_out;
4888         }
4889         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
4890                                     scan_unassoc_time);
4891         if (err) {
4892                 if (err == -EOPNOTSUPP)
4893                         brcmf_dbg(INFO, "Scan unassoc time is not supported\n");
4894                 else
4895                         brcmf_err("Scan unassoc time error (%d)\n", err);
4896                 goto dongle_scantime_out;
4897         }
4898
4899         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
4900                                     scan_passive_time);
4901         if (err) {
4902                 if (err == -EOPNOTSUPP)
4903                         brcmf_dbg(INFO, "Scan passive time is not supported\n");
4904                 else
4905                         brcmf_err("Scan passive time error (%d)\n", err);
4906                 goto dongle_scantime_out;
4907         }
4908
4909 dongle_scantime_out:
4910         return err;
4911 }
4912
4913 /* Filter the list of channels received from firmware counting only
4914  * the 20MHz channels. The wiphy band data only needs those which get
4915  * flagged to indicate if they can take part in higher bandwidth.
4916  */
4917 static void brcmf_count_20mhz_channels(struct brcmf_cfg80211_info *cfg,
4918                                        struct brcmf_chanspec_list *chlist,
4919                                        u32 chcnt[])
4920 {
4921         u32 total = le32_to_cpu(chlist->count);
4922         struct brcmu_chan ch;
4923         int i;
4924
4925         for (i = 0; i <= total; i++) {
4926                 ch.chspec = (u16)le32_to_cpu(chlist->element[i]);
4927                 cfg->d11inf.decchspec(&ch);
4928
4929                 /* Firmware gives a ordered list. We skip non-20MHz
4930                  * channels is 2G. For 5G we can abort upon reaching
4931                  * a non-20MHz channel in the list.
4932                  */
4933                 if (ch.bw != BRCMU_CHAN_BW_20) {
4934                         if (ch.band == BRCMU_CHAN_BAND_5G)
4935                                 break;
4936                         else
4937                                 continue;
4938                 }
4939
4940                 if (ch.band == BRCMU_CHAN_BAND_2G)
4941                         chcnt[0] += 1;
4942                 else if (ch.band == BRCMU_CHAN_BAND_5G)
4943                         chcnt[1] += 1;
4944         }
4945 }
4946
4947 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel,
4948                                            struct brcmu_chan *ch)
4949 {
4950         u32 ht40_flag;
4951
4952         ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40;
4953         if (ch->sb == BRCMU_CHAN_SB_U) {
4954                 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
4955                         channel->flags &= ~IEEE80211_CHAN_NO_HT40;
4956                 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS;
4957         } else {
4958                 /* It should be one of
4959                  * IEEE80211_CHAN_NO_HT40 or
4960                  * IEEE80211_CHAN_NO_HT40PLUS
4961                  */
4962                 channel->flags &= ~IEEE80211_CHAN_NO_HT40;
4963                 if (ht40_flag == IEEE80211_CHAN_NO_HT40)
4964                         channel->flags |= IEEE80211_CHAN_NO_HT40MINUS;
4965         }
4966 }
4967
4968 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
4969                                     u32 bw_cap[])
4970 {
4971         struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
4972         struct ieee80211_supported_band *band;
4973         struct ieee80211_channel *channel;
4974         struct wiphy *wiphy;
4975         struct brcmf_chanspec_list *list;
4976         struct brcmu_chan ch;
4977         int err;
4978         u8 *pbuf;
4979         u32 i, j;
4980         u32 total;
4981         u32 chaninfo;
4982         u32 chcnt[2] = { 0, 0 };
4983         u32 index;
4984
4985         pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
4986
4987         if (pbuf == NULL)
4988                 return -ENOMEM;
4989
4990         list = (struct brcmf_chanspec_list *)pbuf;
4991
4992         err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
4993                                        BRCMF_DCMD_MEDLEN);
4994         if (err) {
4995                 brcmf_err("get chanspecs error (%d)\n", err);
4996                 goto fail_pbuf;
4997         }
4998
4999         brcmf_count_20mhz_channels(cfg, list, chcnt);
5000         wiphy = cfg_to_wiphy(cfg);
5001         if (chcnt[0]) {
5002                 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz),
5003                                GFP_KERNEL);
5004                 if (band == NULL) {
5005                         err = -ENOMEM;
5006                         goto fail_pbuf;
5007                 }
5008                 band->channels = kcalloc(chcnt[0], sizeof(*channel),
5009                                          GFP_KERNEL);
5010                 if (band->channels == NULL) {
5011                         kfree(band);
5012                         err = -ENOMEM;
5013                         goto fail_pbuf;
5014                 }
5015                 band->n_channels = 0;
5016                 wiphy->bands[IEEE80211_BAND_2GHZ] = band;
5017         }
5018         if (chcnt[1]) {
5019                 band = kmemdup(&__wl_band_5ghz_a, sizeof(__wl_band_5ghz_a),
5020                                GFP_KERNEL);
5021                 if (band == NULL) {
5022                         err = -ENOMEM;
5023                         goto fail_band2g;
5024                 }
5025                 band->channels = kcalloc(chcnt[1], sizeof(*channel),
5026                                          GFP_KERNEL);
5027                 if (band->channels == NULL) {
5028                         kfree(band);
5029                         err = -ENOMEM;
5030                         goto fail_band2g;
5031                 }
5032                 band->n_channels = 0;
5033                 wiphy->bands[IEEE80211_BAND_5GHZ] = band;
5034         }
5035
5036         total = le32_to_cpu(list->count);
5037         for (i = 0; i < total; i++) {
5038                 ch.chspec = (u16)le32_to_cpu(list->element[i]);
5039                 cfg->d11inf.decchspec(&ch);
5040
5041                 if (ch.band == BRCMU_CHAN_BAND_2G) {
5042                         band = wiphy->bands[IEEE80211_BAND_2GHZ];
5043                 } else if (ch.band == BRCMU_CHAN_BAND_5G) {
5044                         band = wiphy->bands[IEEE80211_BAND_5GHZ];
5045                 } else {
5046                         brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec);
5047                         continue;
5048                 }
5049                 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) &&
5050                     ch.bw == BRCMU_CHAN_BW_40)
5051                         continue;
5052                 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) &&
5053                     ch.bw == BRCMU_CHAN_BW_80)
5054                         continue;
5055
5056                 channel = band->channels;
5057                 index = band->n_channels;
5058                 for (j = 0; j < band->n_channels; j++) {
5059                         if (channel[j].hw_value == ch.chnum) {
5060                                 index = j;
5061                                 break;
5062                         }
5063                 }
5064                 channel[index].center_freq =
5065                         ieee80211_channel_to_frequency(ch.chnum, band->band);
5066                 channel[index].hw_value = ch.chnum;
5067
5068                 /* assuming the chanspecs order is HT20,
5069                  * HT40 upper, HT40 lower, and VHT80.
5070                  */
5071                 if (ch.bw == BRCMU_CHAN_BW_80) {
5072                         channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ;
5073                 } else if (ch.bw == BRCMU_CHAN_BW_40) {
5074                         brcmf_update_bw40_channel_flag(&channel[index], &ch);
5075                 } else {
5076                         /* disable other bandwidths for now as mentioned
5077                          * order assure they are enabled for subsequent
5078                          * chanspecs.
5079                          */
5080                         channel[index].flags = IEEE80211_CHAN_NO_HT40 |
5081                                                IEEE80211_CHAN_NO_80MHZ;
5082                         ch.bw = BRCMU_CHAN_BW_20;
5083                         cfg->d11inf.encchspec(&ch);
5084                         chaninfo = ch.chspec;
5085                         err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info",
5086                                                        &chaninfo);
5087                         if (!err) {
5088                                 if (chaninfo & WL_CHAN_RADAR)
5089                                         channel[index].flags |=
5090                                                 (IEEE80211_CHAN_RADAR |
5091                                                  IEEE80211_CHAN_NO_IR);
5092                                 if (chaninfo & WL_CHAN_PASSIVE)
5093                                         channel[index].flags |=
5094                                                 IEEE80211_CHAN_NO_IR;
5095                         }
5096                 }
5097                 if (index == band->n_channels)
5098                         band->n_channels++;
5099         }
5100         kfree(pbuf);
5101         return 0;
5102
5103 fail_band2g:
5104         kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5105         kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5106         wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
5107 fail_pbuf:
5108         kfree(pbuf);
5109         return err;
5110 }
5111
5112 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg)
5113 {
5114         struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5115         struct ieee80211_supported_band *band;
5116         struct brcmf_fil_bwcap_le band_bwcap;
5117         struct brcmf_chanspec_list *list;
5118         u8 *pbuf;
5119         u32 val;
5120         int err;
5121         struct brcmu_chan ch;
5122         u32 num_chan;
5123         int i, j;
5124
5125         /* verify support for bw_cap command */
5126         val = WLC_BAND_5G;
5127         err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val);
5128
5129         if (!err) {
5130                 /* only set 2G bandwidth using bw_cap command */
5131                 band_bwcap.band = cpu_to_le32(WLC_BAND_2G);
5132                 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ);
5133                 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap,
5134                                                sizeof(band_bwcap));
5135         } else {
5136                 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n");
5137                 val = WLC_N_BW_40ALL;
5138                 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val);
5139         }
5140
5141         if (!err) {
5142                 /* update channel info in 2G band */
5143                 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
5144
5145                 if (pbuf == NULL)
5146                         return -ENOMEM;
5147
5148                 ch.band = BRCMU_CHAN_BAND_2G;
5149                 ch.bw = BRCMU_CHAN_BW_40;
5150                 ch.chnum = 0;
5151                 cfg->d11inf.encchspec(&ch);
5152
5153                 /* pass encoded chanspec in query */
5154                 *(__le16 *)pbuf = cpu_to_le16(ch.chspec);
5155
5156                 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
5157                                                BRCMF_DCMD_MEDLEN);
5158                 if (err) {
5159                         brcmf_err("get chanspecs error (%d)\n", err);
5160                         kfree(pbuf);
5161                         return err;
5162                 }
5163
5164                 band = cfg_to_wiphy(cfg)->bands[IEEE80211_BAND_2GHZ];
5165                 list = (struct brcmf_chanspec_list *)pbuf;
5166                 num_chan = le32_to_cpu(list->count);
5167                 for (i = 0; i < num_chan; i++) {
5168                         ch.chspec = (u16)le32_to_cpu(list->element[i]);
5169                         cfg->d11inf.decchspec(&ch);
5170                         if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G))
5171                                 continue;
5172                         if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40))
5173                                 continue;
5174                         for (j = 0; j < band->n_channels; j++) {
5175                                 if (band->channels[j].hw_value == ch.chnum)
5176                                         break;
5177                         }
5178                         if (WARN_ON(j == band->n_channels))
5179                                 continue;
5180
5181                         brcmf_update_bw40_channel_flag(&band->channels[j], &ch);
5182                 }
5183         }
5184         return err;
5185 }
5186
5187 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[])
5188 {
5189         u32 band, mimo_bwcap;
5190         int err;
5191
5192         band = WLC_BAND_2G;
5193         err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5194         if (!err) {
5195                 bw_cap[IEEE80211_BAND_2GHZ] = band;
5196                 band = WLC_BAND_5G;
5197                 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band);
5198                 if (!err) {
5199                         bw_cap[IEEE80211_BAND_5GHZ] = band;
5200                         return;
5201                 }
5202                 WARN_ON(1);
5203                 return;
5204         }
5205         brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n");
5206         mimo_bwcap = 0;
5207         err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap);
5208         if (err)
5209                 /* assume 20MHz if firmware does not give a clue */
5210                 mimo_bwcap = WLC_N_BW_20ALL;
5211
5212         switch (mimo_bwcap) {
5213         case WLC_N_BW_40ALL:
5214                 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT;
5215                 /* fall-thru */
5216         case WLC_N_BW_20IN2G_40IN5G:
5217                 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT;
5218                 /* fall-thru */
5219         case WLC_N_BW_20ALL:
5220                 bw_cap[IEEE80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT;
5221                 bw_cap[IEEE80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT;
5222                 break;
5223         default:
5224                 brcmf_err("invalid mimo_bw_cap value\n");
5225         }
5226 }
5227
5228 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band,
5229                                 u32 bw_cap[2], u32 nchain)
5230 {
5231         band->ht_cap.ht_supported = true;
5232         if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) {
5233                 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
5234                 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5235         }
5236         band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
5237         band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
5238         band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
5239         band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16;
5240         memset(band->ht_cap.mcs.rx_mask, 0xff, nchain);
5241         band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
5242 }
5243
5244 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp)
5245 {
5246         u16 mcs_map;
5247         int i;
5248
5249         for (i = 0, mcs_map = 0xFFFF; i < nchain; i++)
5250                 mcs_map = (mcs_map << 2) | supp;
5251
5252         return cpu_to_le16(mcs_map);
5253 }
5254
5255 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band,
5256                                  u32 bw_cap[2], u32 nchain)
5257 {
5258         __le16 mcs_map;
5259
5260         /* not allowed in 2.4G band */
5261         if (band->band == IEEE80211_BAND_2GHZ)
5262                 return;
5263
5264         band->vht_cap.vht_supported = true;
5265         /* 80MHz is mandatory */
5266         band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80;
5267         if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) {
5268                 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
5269                 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160;
5270         }
5271         /* all support 256-QAM */
5272         mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9);
5273         band->vht_cap.vht_mcs.rx_mcs_map = mcs_map;
5274         band->vht_cap.vht_mcs.tx_mcs_map = mcs_map;
5275 }
5276
5277 static int brcmf_setup_wiphybands(struct wiphy *wiphy)
5278 {
5279         struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
5280         struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5281         u32 nmode = 0;
5282         u32 vhtmode = 0;
5283         u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT };
5284         u32 rxchain;
5285         u32 nchain;
5286         int err;
5287         s32 i;
5288         struct ieee80211_supported_band *band;
5289
5290         (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode);
5291         err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
5292         if (err) {
5293                 brcmf_err("nmode error (%d)\n", err);
5294         } else {
5295                 brcmf_get_bwcap(ifp, bw_cap);
5296         }
5297         brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n",
5298                   nmode, vhtmode, bw_cap[IEEE80211_BAND_2GHZ],
5299                   bw_cap[IEEE80211_BAND_5GHZ]);
5300
5301         err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain);
5302         if (err) {
5303                 brcmf_err("rxchain error (%d)\n", err);
5304                 nchain = 1;
5305         } else {
5306                 for (nchain = 0; rxchain; nchain++)
5307                         rxchain = rxchain & (rxchain - 1);
5308         }
5309         brcmf_dbg(INFO, "nchain=%d\n", nchain);
5310
5311         err = brcmf_construct_chaninfo(cfg, bw_cap);
5312         if (err) {
5313                 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err);
5314                 return err;
5315         }
5316
5317         wiphy = cfg_to_wiphy(cfg);
5318         for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) {
5319                 band = wiphy->bands[i];
5320                 if (band == NULL)
5321                         continue;
5322
5323                 if (nmode)
5324                         brcmf_update_ht_cap(band, bw_cap, nchain);
5325                 if (vhtmode)
5326                         brcmf_update_vht_cap(band, bw_cap, nchain);
5327         }
5328
5329         return 0;
5330 }
5331
5332 static const struct ieee80211_iface_limit brcmf_iface_limits[] = {
5333         {
5334                 .max = 2,
5335                 .types = BIT(NL80211_IFTYPE_STATION) |
5336                          BIT(NL80211_IFTYPE_ADHOC) |
5337                          BIT(NL80211_IFTYPE_AP)
5338         },
5339         {
5340                 .max = 1,
5341                 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
5342                          BIT(NL80211_IFTYPE_P2P_GO)
5343         },
5344         {
5345                 .max = 1,
5346                 .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
5347         }
5348 };
5349 static struct ieee80211_iface_combination brcmf_iface_combos[] = {
5350         {
5351                  .max_interfaces = BRCMF_IFACE_MAX_CNT,
5352                  .num_different_channels = 1,
5353                  .n_limits = ARRAY_SIZE(brcmf_iface_limits),
5354                  .limits = brcmf_iface_limits
5355         }
5356 };
5357
5358 static const struct ieee80211_txrx_stypes
5359 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
5360         [NL80211_IFTYPE_STATION] = {
5361                 .tx = 0xffff,
5362                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5363                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5364         },
5365         [NL80211_IFTYPE_P2P_CLIENT] = {
5366                 .tx = 0xffff,
5367                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5368                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5369         },
5370         [NL80211_IFTYPE_P2P_GO] = {
5371                 .tx = 0xffff,
5372                 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
5373                       BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
5374                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
5375                       BIT(IEEE80211_STYPE_DISASSOC >> 4) |
5376                       BIT(IEEE80211_STYPE_AUTH >> 4) |
5377                       BIT(IEEE80211_STYPE_DEAUTH >> 4) |
5378                       BIT(IEEE80211_STYPE_ACTION >> 4)
5379         },
5380         [NL80211_IFTYPE_P2P_DEVICE] = {
5381                 .tx = 0xffff,
5382                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
5383                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
5384         }
5385 };
5386
5387 static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
5388 {
5389         /* scheduled scan settings */
5390         wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
5391         wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
5392         wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5393         wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
5394 }
5395
5396 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
5397 {
5398         struct ieee80211_iface_combination ifc_combo;
5399         wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
5400         wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
5401         wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
5402         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
5403                                  BIT(NL80211_IFTYPE_ADHOC) |
5404                                  BIT(NL80211_IFTYPE_AP) |
5405                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
5406                                  BIT(NL80211_IFTYPE_P2P_GO) |
5407                                  BIT(NL80211_IFTYPE_P2P_DEVICE);
5408         /* need VSDB firmware feature for concurrent channels */
5409         ifc_combo = brcmf_iface_combos[0];
5410         if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
5411                 ifc_combo.num_different_channels = 2;
5412         wiphy->iface_combinations = kmemdup(&ifc_combo,
5413                                             sizeof(ifc_combo),
5414                                             GFP_KERNEL);
5415         wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
5416         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
5417         wiphy->cipher_suites = __wl_cipher_suites;
5418         wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
5419         wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
5420                         WIPHY_FLAG_OFFCHAN_TX |
5421                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
5422                         WIPHY_FLAG_SUPPORTS_TDLS;
5423         if (!brcmf_roamoff)
5424                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
5425         wiphy->mgmt_stypes = brcmf_txrx_stypes;
5426         wiphy->max_remain_on_channel_duration = 5000;
5427         brcmf_wiphy_pno_params(wiphy);
5428
5429         /* vendor commands/events support */
5430         wiphy->vendor_commands = brcmf_vendor_cmds;
5431         wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
5432
5433         return brcmf_setup_wiphybands(wiphy);
5434 }
5435
5436 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
5437 {
5438         struct net_device *ndev;
5439         struct wireless_dev *wdev;
5440         struct brcmf_if *ifp;
5441         s32 power_mode;
5442         s32 err = 0;
5443
5444         if (cfg->dongle_up)
5445                 return err;
5446
5447         ndev = cfg_to_ndev(cfg);
5448         wdev = ndev->ieee80211_ptr;
5449         ifp = netdev_priv(ndev);
5450
5451         /* make sure RF is ready for work */
5452         brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0);
5453
5454         brcmf_dongle_scantime(ifp, WL_SCAN_CHANNEL_TIME,
5455                               WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
5456
5457         power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
5458         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode);
5459         if (err)
5460                 goto default_conf_out;
5461         brcmf_dbg(INFO, "power save set to %s\n",
5462                   (power_mode ? "enabled" : "disabled"));
5463
5464         err = brcmf_dongle_roam(ifp, WL_BEACON_TIMEOUT);
5465         if (err)
5466                 goto default_conf_out;
5467         err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
5468                                           NULL, NULL);
5469         if (err)
5470                 goto default_conf_out;
5471
5472         brcmf_configure_arp_offload(ifp, true);
5473
5474         cfg->dongle_up = true;
5475 default_conf_out:
5476
5477         return err;
5478
5479 }
5480
5481 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp)
5482 {
5483         set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5484
5485         return brcmf_config_dongle(ifp->drvr->config);
5486 }
5487
5488 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp)
5489 {
5490         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5491
5492         /*
5493          * While going down, if associated with AP disassociate
5494          * from AP to save power
5495          */
5496         if (check_vif_up(ifp->vif)) {
5497                 brcmf_link_down(ifp->vif);
5498
5499                 /* Make sure WPA_Supplicant receives all the event
5500                    generated due to DISASSOC call to the fw to keep
5501                    the state fw and WPA_Supplicant state consistent
5502                  */
5503                 brcmf_delay(500);
5504         }
5505
5506         brcmf_abort_scanning(cfg);
5507         clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5508
5509         return 0;
5510 }
5511
5512 s32 brcmf_cfg80211_up(struct net_device *ndev)
5513 {
5514         struct brcmf_if *ifp = netdev_priv(ndev);
5515         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5516         s32 err = 0;
5517
5518         mutex_lock(&cfg->usr_sync);
5519         err = __brcmf_cfg80211_up(ifp);
5520         mutex_unlock(&cfg->usr_sync);
5521
5522         return err;
5523 }
5524
5525 s32 brcmf_cfg80211_down(struct net_device *ndev)
5526 {
5527         struct brcmf_if *ifp = netdev_priv(ndev);
5528         struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
5529         s32 err = 0;
5530
5531         mutex_lock(&cfg->usr_sync);
5532         err = __brcmf_cfg80211_down(ifp);
5533         mutex_unlock(&cfg->usr_sync);
5534
5535         return err;
5536 }
5537
5538 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
5539 {
5540         struct wireless_dev *wdev = &ifp->vif->wdev;
5541
5542         return wdev->iftype;
5543 }
5544
5545 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg, unsigned long state)
5546 {
5547         struct brcmf_cfg80211_vif *vif;
5548
5549         list_for_each_entry(vif, &cfg->vif_list, list) {
5550                 if (test_bit(state, &vif->sme_state))
5551                         return true;
5552         }
5553         return false;
5554 }
5555
5556 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event,
5557                                     u8 action)
5558 {
5559         u8 evt_action;
5560
5561         mutex_lock(&event->vif_event_lock);
5562         evt_action = event->action;
5563         mutex_unlock(&event->vif_event_lock);
5564         return evt_action == action;
5565 }
5566
5567 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
5568                                   struct brcmf_cfg80211_vif *vif)
5569 {
5570         struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5571
5572         mutex_lock(&event->vif_event_lock);
5573         event->vif = vif;
5574         event->action = 0;
5575         mutex_unlock(&event->vif_event_lock);
5576 }
5577
5578 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg)
5579 {
5580         struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5581         bool armed;
5582
5583         mutex_lock(&event->vif_event_lock);
5584         armed = event->vif != NULL;
5585         mutex_unlock(&event->vif_event_lock);
5586
5587         return armed;
5588 }
5589 int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
5590                                           u8 action, ulong timeout)
5591 {
5592         struct brcmf_cfg80211_vif_event *event = &cfg->vif_event;
5593
5594         return wait_event_timeout(event->vif_wq,
5595                                   vif_event_equals(event, action), timeout);
5596 }
5597
5598 static void brcmf_free_wiphy(struct wiphy *wiphy)
5599 {
5600         kfree(wiphy->iface_combinations);
5601         if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
5602                 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]->channels);
5603                 kfree(wiphy->bands[IEEE80211_BAND_2GHZ]);
5604         }
5605         if (wiphy->bands[IEEE80211_BAND_5GHZ]) {
5606                 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]->channels);
5607                 kfree(wiphy->bands[IEEE80211_BAND_5GHZ]);
5608         }
5609         wiphy_free(wiphy);
5610 }
5611
5612 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
5613                                                   struct device *busdev)
5614 {
5615         struct net_device *ndev = drvr->iflist[0]->ndev;
5616         struct brcmf_cfg80211_info *cfg;
5617         struct wiphy *wiphy;
5618         struct brcmf_cfg80211_vif *vif;
5619         struct brcmf_if *ifp;
5620         s32 err = 0;
5621         s32 io_type;
5622         u16 *cap = NULL;
5623
5624         if (!ndev) {
5625                 brcmf_err("ndev is invalid\n");
5626                 return NULL;
5627         }
5628
5629         ifp = netdev_priv(ndev);
5630         wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
5631         if (!wiphy) {
5632                 brcmf_err("Could not allocate wiphy device\n");
5633                 return NULL;
5634         }
5635         set_wiphy_dev(wiphy, busdev);
5636
5637         cfg = wiphy_priv(wiphy);
5638         cfg->wiphy = wiphy;
5639         cfg->pub = drvr;
5640         init_vif_event(&cfg->vif_event);
5641         INIT_LIST_HEAD(&cfg->vif_list);
5642
5643         vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION, false);
5644         if (IS_ERR(vif))
5645                 goto wiphy_out;
5646
5647         vif->ifp = ifp;
5648         vif->wdev.netdev = ndev;
5649         ndev->ieee80211_ptr = &vif->wdev;
5650         SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy));
5651
5652         err = wl_init_priv(cfg);
5653         if (err) {
5654                 brcmf_err("Failed to init iwm_priv (%d)\n", err);
5655                 brcmf_free_vif(vif);
5656                 goto wiphy_out;
5657         }
5658         ifp->vif = vif;
5659
5660         /* determine d11 io type before wiphy setup */
5661         err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type);
5662         if (err) {
5663                 brcmf_err("Failed to get D11 version (%d)\n", err);
5664                 goto priv_out;
5665         }
5666         cfg->d11inf.io_type = (u8)io_type;
5667         brcmu_d11_attach(&cfg->d11inf);
5668
5669         err = brcmf_setup_wiphy(wiphy, ifp);
5670         if (err < 0)
5671                 goto priv_out;
5672
5673         brcmf_dbg(INFO, "Registering custom regulatory\n");
5674         wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
5675         wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
5676
5677         /* firmware defaults to 40MHz disabled in 2G band. We signal
5678          * cfg80211 here that we do and have it decide we can enable
5679          * it. But first check if device does support 2G operation.
5680          */
5681         if (wiphy->bands[IEEE80211_BAND_2GHZ]) {
5682                 cap = &wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap.cap;
5683                 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5684         }
5685         err = wiphy_register(wiphy);
5686         if (err < 0) {
5687                 brcmf_err("Could not register wiphy device (%d)\n", err);
5688                 goto priv_out;
5689         }
5690
5691         /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(),
5692          * setup 40MHz in 2GHz band and enable OBSS scanning.
5693          */
5694         if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) {
5695                 err = brcmf_enable_bw40_2g(cfg);
5696                 if (!err)
5697                         err = brcmf_fil_iovar_int_set(ifp, "obss_coex",
5698                                                       BRCMF_OBSS_COEX_AUTO);
5699                 else
5700                         *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
5701         }
5702
5703         err = brcmf_p2p_attach(cfg);
5704         if (err) {
5705                 brcmf_err("P2P initilisation failed (%d)\n", err);
5706                 goto wiphy_unreg_out;
5707         }
5708         err = brcmf_btcoex_attach(cfg);
5709         if (err) {
5710                 brcmf_err("BT-coex initialisation failed (%d)\n", err);
5711                 brcmf_p2p_detach(&cfg->p2p);
5712                 goto wiphy_unreg_out;
5713         }
5714
5715         err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
5716         if (err) {
5717                 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err);
5718                 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS;
5719         } else {
5720                 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT,
5721                                     brcmf_notify_tdls_peer_event);
5722         }
5723
5724         return cfg;
5725
5726 wiphy_unreg_out:
5727         wiphy_unregister(cfg->wiphy);
5728 priv_out:
5729         wl_deinit_priv(cfg);
5730         brcmf_free_vif(vif);
5731 wiphy_out:
5732         brcmf_free_wiphy(wiphy);
5733         return NULL;
5734 }
5735
5736 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
5737 {
5738         if (!cfg)
5739                 return;
5740
5741         WARN_ON(!list_empty(&cfg->vif_list));
5742         wiphy_unregister(cfg->wiphy);
5743         brcmf_btcoex_detach(cfg);
5744         brcmf_p2p_detach(&cfg->p2p);
5745         wl_deinit_priv(cfg);
5746         brcmf_free_wiphy(cfg->wiphy);
5747 }