root/drivers/net/wireless/marvell/mwifiex/cfg80211.c

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DEFINITIONS

This source file includes following definitions.
  1. mwifiex_chan_type_to_sec_chan_offset
  2. mwifiex_get_chan_type
  3. mwifiex_is_alg_wep
  4. mwifiex_cfg80211_get_adapter
  5. mwifiex_cfg80211_del_key
  6. mwifiex_form_mgmt_frame
  7. mwifiex_cfg80211_mgmt_tx
  8. mwifiex_cfg80211_mgmt_frame_register
  9. mwifiex_cfg80211_remain_on_channel
  10. mwifiex_cfg80211_cancel_remain_on_channel
  11. mwifiex_cfg80211_set_tx_power
  12. mwifiex_cfg80211_get_tx_power
  13. mwifiex_cfg80211_set_power_mgmt
  14. mwifiex_cfg80211_set_default_key
  15. mwifiex_cfg80211_add_key
  16. mwifiex_cfg80211_set_default_mgmt_key
  17. mwifiex_send_domain_info_cmd_fw
  18. mwifiex_reg_apply_radar_flags
  19. mwifiex_reg_notifier
  20. mwifiex_set_frag
  21. mwifiex_set_rts
  22. mwifiex_cfg80211_set_wiphy_params
  23. mwifiex_cfg80211_deinit_p2p
  24. mwifiex_cfg80211_init_p2p_client
  25. mwifiex_cfg80211_init_p2p_go
  26. mwifiex_deinit_priv_params
  27. mwifiex_init_new_priv_params
  28. mwifiex_change_vif_to_p2p
  29. mwifiex_change_vif_to_sta_adhoc
  30. mwifiex_change_vif_to_ap
  31. mwifiex_cfg80211_change_virtual_intf
  32. mwifiex_parse_htinfo
  33. mwifiex_dump_station_info
  34. mwifiex_cfg80211_get_station
  35. mwifiex_cfg80211_dump_station
  36. mwifiex_cfg80211_dump_survey
  37. mwifiex_cfg80211_set_bitrate_mask
  38. mwifiex_cfg80211_set_cqm_rssi_config
  39. mwifiex_cfg80211_change_beacon
  40. mwifiex_cfg80211_del_station
  41. mwifiex_cfg80211_set_antenna
  42. mwifiex_cfg80211_get_antenna
  43. mwifiex_cfg80211_stop_ap
  44. mwifiex_cfg80211_start_ap
  45. mwifiex_cfg80211_disconnect
  46. mwifiex_cfg80211_inform_ibss_bss
  47. mwifiex_cfg80211_assoc
  48. mwifiex_cfg80211_connect
  49. mwifiex_set_ibss_params
  50. mwifiex_cfg80211_join_ibss
  51. mwifiex_cfg80211_leave_ibss
  52. mwifiex_cfg80211_scan
  53. mwifiex_cfg80211_sched_scan_start
  54. mwifiex_cfg80211_sched_scan_stop
  55. mwifiex_setup_vht_caps
  56. mwifiex_setup_ht_caps
  57. mwifiex_add_virtual_intf
  58. mwifiex_del_virtual_intf
  59. mwifiex_is_pattern_supported
  60. mwifiex_set_auto_arp_mef_entry
  61. mwifiex_set_wowlan_mef_entry
  62. mwifiex_set_mef_filter
  63. mwifiex_cfg80211_suspend
  64. mwifiex_cfg80211_resume
  65. mwifiex_cfg80211_set_wakeup
  66. mwifiex_set_rekey_data
  67. mwifiex_get_coalesce_pkt_type
  68. mwifiex_fill_coalesce_rule_info
  69. mwifiex_cfg80211_set_coalesce
  70. mwifiex_cfg80211_tdls_mgmt
  71. mwifiex_cfg80211_tdls_oper
  72. mwifiex_cfg80211_tdls_chan_switch
  73. mwifiex_cfg80211_tdls_cancel_chan_switch
  74. mwifiex_cfg80211_add_station
  75. mwifiex_cfg80211_channel_switch
  76. mwifiex_cfg80211_get_channel
  77. mwifiex_tm_cmd
  78. mwifiex_cfg80211_start_radar_detection
  79. mwifiex_cfg80211_change_station
  80. mwifiex_is_valid_alpha2
  81. mwifiex_init_channel_scan_gap
  82. mwifiex_register_cfg80211

   1 /*
   2  * Marvell Wireless LAN device driver: CFG80211
   3  *
   4  * Copyright (C) 2011-2014, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19 
  20 #include "cfg80211.h"
  21 #include "main.h"
  22 #include "11n.h"
  23 #include "wmm.h"
  24 
  25 static char *reg_alpha2;
  26 module_param(reg_alpha2, charp, 0);
  27 
  28 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  29         {
  30                 .max = 3, .types = BIT(NL80211_IFTYPE_STATION) |
  31                                    BIT(NL80211_IFTYPE_P2P_GO) |
  32                                    BIT(NL80211_IFTYPE_P2P_CLIENT) |
  33                                    BIT(NL80211_IFTYPE_AP),
  34         },
  35 };
  36 
  37 static const struct ieee80211_iface_combination
  38 mwifiex_iface_comb_ap_sta = {
  39         .limits = mwifiex_ap_sta_limits,
  40         .num_different_channels = 1,
  41         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  42         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  43         .beacon_int_infra_match = true,
  44         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  45                                 BIT(NL80211_CHAN_WIDTH_20) |
  46                                 BIT(NL80211_CHAN_WIDTH_40),
  47 };
  48 
  49 static const struct ieee80211_iface_combination
  50 mwifiex_iface_comb_ap_sta_vht = {
  51         .limits = mwifiex_ap_sta_limits,
  52         .num_different_channels = 1,
  53         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  54         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  55         .beacon_int_infra_match = true,
  56         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  57                                 BIT(NL80211_CHAN_WIDTH_20) |
  58                                 BIT(NL80211_CHAN_WIDTH_40) |
  59                                 BIT(NL80211_CHAN_WIDTH_80),
  60 };
  61 
  62 static const struct
  63 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
  64         .limits = mwifiex_ap_sta_limits,
  65         .num_different_channels = 2,
  66         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  67         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  68         .beacon_int_infra_match = true,
  69 };
  70 
  71 /*
  72  * This function maps the nl802.11 channel type into driver channel type.
  73  *
  74  * The mapping is as follows -
  75  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  76  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  77  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  78  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  79  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  80  */
  81 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  82 {
  83         switch (chan_type) {
  84         case NL80211_CHAN_NO_HT:
  85         case NL80211_CHAN_HT20:
  86                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  87         case NL80211_CHAN_HT40PLUS:
  88                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  89         case NL80211_CHAN_HT40MINUS:
  90                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  91         default:
  92                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  93         }
  94 }
  95 
  96 /* This function maps IEEE HT secondary channel type to NL80211 channel type
  97  */
  98 u8 mwifiex_get_chan_type(struct mwifiex_private *priv)
  99 {
 100         struct mwifiex_channel_band channel_band;
 101         int ret;
 102 
 103         ret = mwifiex_get_chan_info(priv, &channel_band);
 104 
 105         if (!ret) {
 106                 switch (channel_band.band_config.chan_width) {
 107                 case CHAN_BW_20MHZ:
 108                         if (IS_11N_ENABLED(priv))
 109                                 return NL80211_CHAN_HT20;
 110                         else
 111                                 return NL80211_CHAN_NO_HT;
 112                 case CHAN_BW_40MHZ:
 113                         if (channel_band.band_config.chan2_offset ==
 114                             SEC_CHAN_ABOVE)
 115                                 return NL80211_CHAN_HT40PLUS;
 116                         else
 117                                 return NL80211_CHAN_HT40MINUS;
 118                 default:
 119                         return NL80211_CHAN_HT20;
 120                 }
 121         }
 122 
 123         return NL80211_CHAN_HT20;
 124 }
 125 
 126 /*
 127  * This function checks whether WEP is set.
 128  */
 129 static int
 130 mwifiex_is_alg_wep(u32 cipher)
 131 {
 132         switch (cipher) {
 133         case WLAN_CIPHER_SUITE_WEP40:
 134         case WLAN_CIPHER_SUITE_WEP104:
 135                 return 1;
 136         default:
 137                 break;
 138         }
 139 
 140         return 0;
 141 }
 142 
 143 /*
 144  * This function retrieves the private structure from kernel wiphy structure.
 145  */
 146 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 147 {
 148         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 149 }
 150 
 151 /*
 152  * CFG802.11 operation handler to delete a network key.
 153  */
 154 static int
 155 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 156                          u8 key_index, bool pairwise, const u8 *mac_addr)
 157 {
 158         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 159         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 160         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 161 
 162         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 163                 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
 164                 return -EFAULT;
 165         }
 166 
 167         mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
 168         return 0;
 169 }
 170 
 171 /*
 172  * This function forms an skb for management frame.
 173  */
 174 static int
 175 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 176 {
 177         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 178         u16 pkt_len;
 179         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 180 
 181         pkt_len = len + ETH_ALEN;
 182 
 183         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 184                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 185         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 186 
 187         memcpy(skb_push(skb, sizeof(tx_control)),
 188                &tx_control, sizeof(tx_control));
 189 
 190         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 191 
 192         /* Add packet data and address4 */
 193         skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr));
 194         skb_put_data(skb, addr, ETH_ALEN);
 195         skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr),
 196                      len - sizeof(struct ieee80211_hdr_3addr));
 197 
 198         skb->priority = LOW_PRIO_TID;
 199         __net_timestamp(skb);
 200 
 201         return 0;
 202 }
 203 
 204 /*
 205  * CFG802.11 operation handler to transmit a management frame.
 206  */
 207 static int
 208 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 209                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 210 {
 211         const u8 *buf = params->buf;
 212         size_t len = params->len;
 213         struct sk_buff *skb;
 214         u16 pkt_len;
 215         const struct ieee80211_mgmt *mgmt;
 216         struct mwifiex_txinfo *tx_info;
 217         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 218 
 219         if (!buf || !len) {
 220                 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
 221                 return -EFAULT;
 222         }
 223 
 224         mgmt = (const struct ieee80211_mgmt *)buf;
 225         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 226             ieee80211_is_probe_resp(mgmt->frame_control)) {
 227                 /* Since we support offload probe resp, we need to skip probe
 228                  * resp in AP or GO mode */
 229                 mwifiex_dbg(priv->adapter, INFO,
 230                             "info: skip to send probe resp in AP or GO mode\n");
 231                 return 0;
 232         }
 233 
 234         pkt_len = len + ETH_ALEN;
 235         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 236                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 237                             pkt_len + sizeof(pkt_len));
 238 
 239         if (!skb) {
 240                 mwifiex_dbg(priv->adapter, ERROR,
 241                             "allocate skb failed for management frame\n");
 242                 return -ENOMEM;
 243         }
 244 
 245         tx_info = MWIFIEX_SKB_TXCB(skb);
 246         memset(tx_info, 0, sizeof(*tx_info));
 247         tx_info->bss_num = priv->bss_num;
 248         tx_info->bss_type = priv->bss_type;
 249         tx_info->pkt_len = pkt_len;
 250 
 251         mwifiex_form_mgmt_frame(skb, buf, len);
 252         *cookie = prandom_u32() | 1;
 253 
 254         if (ieee80211_is_action(mgmt->frame_control))
 255                 skb = mwifiex_clone_skb_for_tx_status(priv,
 256                                                       skb,
 257                                 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 258         else
 259                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 260                                         GFP_ATOMIC);
 261 
 262         mwifiex_queue_tx_pkt(priv, skb);
 263 
 264         mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
 265         return 0;
 266 }
 267 
 268 /*
 269  * CFG802.11 operation handler to register a mgmt frame.
 270  */
 271 static void
 272 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 273                                      struct wireless_dev *wdev,
 274                                      u16 frame_type, bool reg)
 275 {
 276         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 277         u32 mask;
 278 
 279         if (reg)
 280                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 281         else
 282                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 283 
 284         if (mask != priv->mgmt_frame_mask) {
 285                 priv->mgmt_frame_mask = mask;
 286                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 287                                  HostCmd_ACT_GEN_SET, 0,
 288                                  &priv->mgmt_frame_mask, false);
 289                 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
 290         }
 291 }
 292 
 293 /*
 294  * CFG802.11 operation handler to remain on channel.
 295  */
 296 static int
 297 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 298                                    struct wireless_dev *wdev,
 299                                    struct ieee80211_channel *chan,
 300                                    unsigned int duration, u64 *cookie)
 301 {
 302         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 303         int ret;
 304 
 305         if (!chan || !cookie) {
 306                 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
 307                 return -EINVAL;
 308         }
 309 
 310         if (priv->roc_cfg.cookie) {
 311                 mwifiex_dbg(priv->adapter, INFO,
 312                             "info: ongoing ROC, cookie = 0x%llx\n",
 313                             priv->roc_cfg.cookie);
 314                 return -EBUSY;
 315         }
 316 
 317         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 318                                          duration);
 319 
 320         if (!ret) {
 321                 *cookie = prandom_u32() | 1;
 322                 priv->roc_cfg.cookie = *cookie;
 323                 priv->roc_cfg.chan = *chan;
 324 
 325                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 326                                           duration, GFP_ATOMIC);
 327 
 328                 mwifiex_dbg(priv->adapter, INFO,
 329                             "info: ROC, cookie = 0x%llx\n", *cookie);
 330         }
 331 
 332         return ret;
 333 }
 334 
 335 /*
 336  * CFG802.11 operation handler to cancel remain on channel.
 337  */
 338 static int
 339 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 340                                           struct wireless_dev *wdev, u64 cookie)
 341 {
 342         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 343         int ret;
 344 
 345         if (cookie != priv->roc_cfg.cookie)
 346                 return -ENOENT;
 347 
 348         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 349                                          &priv->roc_cfg.chan, 0);
 350 
 351         if (!ret) {
 352                 cfg80211_remain_on_channel_expired(wdev, cookie,
 353                                                    &priv->roc_cfg.chan,
 354                                                    GFP_ATOMIC);
 355 
 356                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 357 
 358                 mwifiex_dbg(priv->adapter, INFO,
 359                             "info: cancel ROC, cookie = 0x%llx\n", cookie);
 360         }
 361 
 362         return ret;
 363 }
 364 
 365 /*
 366  * CFG802.11 operation handler to set Tx power.
 367  */
 368 static int
 369 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 370                               struct wireless_dev *wdev,
 371                               enum nl80211_tx_power_setting type,
 372                               int mbm)
 373 {
 374         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 375         struct mwifiex_private *priv;
 376         struct mwifiex_power_cfg power_cfg;
 377         int dbm = MBM_TO_DBM(mbm);
 378 
 379         switch (type) {
 380         case NL80211_TX_POWER_FIXED:
 381                 power_cfg.is_power_auto = 0;
 382                 power_cfg.is_power_fixed = 1;
 383                 power_cfg.power_level = dbm;
 384                 break;
 385         case NL80211_TX_POWER_LIMITED:
 386                 power_cfg.is_power_auto = 0;
 387                 power_cfg.is_power_fixed = 0;
 388                 power_cfg.power_level = dbm;
 389                 break;
 390         case NL80211_TX_POWER_AUTOMATIC:
 391                 power_cfg.is_power_auto = 1;
 392                 break;
 393         }
 394 
 395         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 396 
 397         return mwifiex_set_tx_power(priv, &power_cfg);
 398 }
 399 
 400 /*
 401  * CFG802.11 operation handler to get Tx power.
 402  */
 403 static int
 404 mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy,
 405                               struct wireless_dev *wdev,
 406                               int *dbm)
 407 {
 408         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 409         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 410                                                         MWIFIEX_BSS_ROLE_ANY);
 411         int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR,
 412                                    HostCmd_ACT_GEN_GET, 0, NULL, true);
 413 
 414         if (ret < 0)
 415                 return ret;
 416 
 417         /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */
 418         *dbm = priv->tx_power_level;
 419 
 420         return 0;
 421 }
 422 
 423 /*
 424  * CFG802.11 operation handler to set Power Save option.
 425  *
 426  * The timeout value, if provided, is currently ignored.
 427  */
 428 static int
 429 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 430                                 struct net_device *dev,
 431                                 bool enabled, int timeout)
 432 {
 433         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 434         u32 ps_mode;
 435 
 436         if (timeout)
 437                 mwifiex_dbg(priv->adapter, INFO,
 438                             "info: ignore timeout value for IEEE Power Save\n");
 439 
 440         ps_mode = enabled;
 441 
 442         return mwifiex_drv_set_power(priv, &ps_mode);
 443 }
 444 
 445 /*
 446  * CFG802.11 operation handler to set the default network key.
 447  */
 448 static int
 449 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 450                                  u8 key_index, bool unicast,
 451                                  bool multicast)
 452 {
 453         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 454 
 455         /* Return if WEP key not configured */
 456         if (!priv->sec_info.wep_enabled)
 457                 return 0;
 458 
 459         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 460                 priv->wep_key_curr_index = key_index;
 461         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 462                                       NULL, 0)) {
 463                 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
 464                 return -EFAULT;
 465         }
 466 
 467         return 0;
 468 }
 469 
 470 /*
 471  * CFG802.11 operation handler to add a network key.
 472  */
 473 static int
 474 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 475                          u8 key_index, bool pairwise, const u8 *mac_addr,
 476                          struct key_params *params)
 477 {
 478         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 479         struct mwifiex_wep_key *wep_key;
 480         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 481         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 482 
 483         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 484             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 485              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 486                 if (params->key && params->key_len) {
 487                         wep_key = &priv->wep_key[key_index];
 488                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 489                         memcpy(wep_key->key_material, params->key,
 490                                params->key_len);
 491                         wep_key->key_index = key_index;
 492                         wep_key->key_length = params->key_len;
 493                         priv->sec_info.wep_enabled = 1;
 494                 }
 495                 return 0;
 496         }
 497 
 498         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 499                                key_index, peer_mac, 0)) {
 500                 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
 501                 return -EFAULT;
 502         }
 503 
 504         return 0;
 505 }
 506 
 507 /*
 508  * CFG802.11 operation handler to set default mgmt key.
 509  */
 510 static int
 511 mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy,
 512                                       struct net_device *netdev,
 513                                       u8 key_index)
 514 {
 515         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 516         struct mwifiex_ds_encrypt_key encrypt_key;
 517 
 518         wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index);
 519 
 520         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
 521         encrypt_key.key_len = WLAN_KEY_LEN_CCMP;
 522         encrypt_key.key_index = key_index;
 523         encrypt_key.is_igtk_def_key = true;
 524         eth_broadcast_addr(encrypt_key.mac_addr);
 525 
 526         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 527                                 HostCmd_ACT_GEN_SET, true, &encrypt_key, true);
 528 }
 529 
 530 /*
 531  * This function sends domain information to the firmware.
 532  *
 533  * The following information are passed to the firmware -
 534  *      - Country codes
 535  *      - Sub bands (first channel, number of channels, maximum Tx power)
 536  */
 537 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 538 {
 539         u8 no_of_triplet = 0;
 540         struct ieee80211_country_ie_triplet *t;
 541         u8 no_of_parsed_chan = 0;
 542         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 543         u8 i, flag = 0;
 544         enum nl80211_band band;
 545         struct ieee80211_supported_band *sband;
 546         struct ieee80211_channel *ch;
 547         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 548         struct mwifiex_private *priv;
 549         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 550 
 551         /* Set country code */
 552         domain_info->country_code[0] = adapter->country_code[0];
 553         domain_info->country_code[1] = adapter->country_code[1];
 554         domain_info->country_code[2] = ' ';
 555 
 556         band = mwifiex_band_to_radio_type(adapter->config_bands);
 557         if (!wiphy->bands[band]) {
 558                 mwifiex_dbg(adapter, ERROR,
 559                             "11D: setting domain info in FW\n");
 560                 return -1;
 561         }
 562 
 563         sband = wiphy->bands[band];
 564 
 565         for (i = 0; i < sband->n_channels ; i++) {
 566                 ch = &sband->channels[i];
 567                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 568                         continue;
 569 
 570                 if (!flag) {
 571                         flag = 1;
 572                         first_chan = (u32) ch->hw_value;
 573                         next_chan = first_chan;
 574                         max_pwr = ch->max_power;
 575                         no_of_parsed_chan = 1;
 576                         continue;
 577                 }
 578 
 579                 if (ch->hw_value == next_chan + 1 &&
 580                     ch->max_power == max_pwr) {
 581                         next_chan++;
 582                         no_of_parsed_chan++;
 583                 } else {
 584                         t = &domain_info->triplet[no_of_triplet];
 585                         t->chans.first_channel = first_chan;
 586                         t->chans.num_channels = no_of_parsed_chan;
 587                         t->chans.max_power = max_pwr;
 588                         no_of_triplet++;
 589                         first_chan = (u32) ch->hw_value;
 590                         next_chan = first_chan;
 591                         max_pwr = ch->max_power;
 592                         no_of_parsed_chan = 1;
 593                 }
 594         }
 595 
 596         if (flag) {
 597                 t = &domain_info->triplet[no_of_triplet];
 598                 t->chans.first_channel = first_chan;
 599                 t->chans.num_channels = no_of_parsed_chan;
 600                 t->chans.max_power = max_pwr;
 601                 no_of_triplet++;
 602         }
 603 
 604         domain_info->no_of_triplet = no_of_triplet;
 605 
 606         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 607 
 608         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 609                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 610                 mwifiex_dbg(adapter, INFO,
 611                             "11D: setting domain info in FW\n");
 612                 return -1;
 613         }
 614 
 615         return 0;
 616 }
 617 
 618 static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy)
 619 {
 620         struct ieee80211_supported_band *sband;
 621         struct ieee80211_channel *chan;
 622         unsigned int i;
 623 
 624         if (!wiphy->bands[NL80211_BAND_5GHZ])
 625                 return;
 626         sband = wiphy->bands[NL80211_BAND_5GHZ];
 627 
 628         for (i = 0; i < sband->n_channels; i++) {
 629                 chan = &sband->channels[i];
 630                 if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) &&
 631                     (chan->flags & IEEE80211_CHAN_RADAR))
 632                         chan->flags |= IEEE80211_CHAN_NO_IR;
 633         }
 634 }
 635 
 636 /*
 637  * CFG802.11 regulatory domain callback function.
 638  *
 639  * This function is called when the regulatory domain is changed due to the
 640  * following reasons -
 641  *      - Set by driver
 642  *      - Set by system core
 643  *      - Set by user
 644  *      - Set bt Country IE
 645  */
 646 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 647                                  struct regulatory_request *request)
 648 {
 649         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 650         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 651                                                         MWIFIEX_BSS_ROLE_ANY);
 652         mwifiex_dbg(adapter, INFO,
 653                     "info: cfg80211 regulatory domain callback for %c%c\n",
 654                     request->alpha2[0], request->alpha2[1]);
 655         mwifiex_reg_apply_radar_flags(wiphy);
 656 
 657         switch (request->initiator) {
 658         case NL80211_REGDOM_SET_BY_DRIVER:
 659         case NL80211_REGDOM_SET_BY_CORE:
 660         case NL80211_REGDOM_SET_BY_USER:
 661         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 662                 break;
 663         default:
 664                 mwifiex_dbg(adapter, ERROR,
 665                             "unknown regdom initiator: %d\n",
 666                             request->initiator);
 667                 return;
 668         }
 669 
 670         /* Don't send world or same regdom info to firmware */
 671         if (strncmp(request->alpha2, "00", 2) &&
 672             strncmp(request->alpha2, adapter->country_code,
 673                     sizeof(request->alpha2))) {
 674                 memcpy(adapter->country_code, request->alpha2,
 675                        sizeof(request->alpha2));
 676                 mwifiex_send_domain_info_cmd_fw(wiphy);
 677                 mwifiex_dnld_txpwr_table(priv);
 678         }
 679 }
 680 
 681 /*
 682  * This function sets the fragmentation threshold.
 683  *
 684  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 685  * and MWIFIEX_FRAG_MAX_VALUE.
 686  */
 687 static int
 688 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 689 {
 690         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 691             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 692                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 693 
 694         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 695                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 696                                 &frag_thr, true);
 697 }
 698 
 699 /*
 700  * This function sets the RTS threshold.
 701 
 702  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 703  * and MWIFIEX_RTS_MAX_VALUE.
 704  */
 705 static int
 706 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 707 {
 708         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 709                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 710 
 711         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 712                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 713                                 &rts_thr, true);
 714 }
 715 
 716 /*
 717  * CFG802.11 operation handler to set wiphy parameters.
 718  *
 719  * This function can be used to set the RTS threshold and the
 720  * Fragmentation threshold of the driver.
 721  */
 722 static int
 723 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 724 {
 725         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 726         struct mwifiex_private *priv;
 727         struct mwifiex_uap_bss_param *bss_cfg;
 728         int ret;
 729 
 730         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 731 
 732         switch (priv->bss_role) {
 733         case MWIFIEX_BSS_ROLE_UAP:
 734                 if (priv->bss_started) {
 735                         mwifiex_dbg(adapter, ERROR,
 736                                     "cannot change wiphy params when bss started");
 737                         return -EINVAL;
 738                 }
 739 
 740                 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 741                 if (!bss_cfg)
 742                         return -ENOMEM;
 743 
 744                 mwifiex_set_sys_config_invalid_data(bss_cfg);
 745 
 746                 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 747                         bss_cfg->rts_threshold = wiphy->rts_threshold;
 748                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 749                         bss_cfg->frag_threshold = wiphy->frag_threshold;
 750                 if (changed & WIPHY_PARAM_RETRY_LONG)
 751                         bss_cfg->retry_limit = wiphy->retry_long;
 752 
 753                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 754                                        HostCmd_ACT_GEN_SET,
 755                                        UAP_BSS_PARAMS_I, bss_cfg,
 756                                        false);
 757 
 758                 kfree(bss_cfg);
 759                 if (ret) {
 760                         mwifiex_dbg(adapter, ERROR,
 761                                     "Failed to set wiphy phy params\n");
 762                         return ret;
 763                 }
 764                 break;
 765 
 766         case MWIFIEX_BSS_ROLE_STA:
 767                 if (priv->media_connected) {
 768                         mwifiex_dbg(adapter, ERROR,
 769                                     "cannot change wiphy params when connected");
 770                         return -EINVAL;
 771                 }
 772                 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 773                         ret = mwifiex_set_rts(priv,
 774                                               wiphy->rts_threshold);
 775                         if (ret)
 776                                 return ret;
 777                 }
 778                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 779                         ret = mwifiex_set_frag(priv,
 780                                                wiphy->frag_threshold);
 781                         if (ret)
 782                                 return ret;
 783                 }
 784                 break;
 785         }
 786 
 787         return 0;
 788 }
 789 
 790 static int
 791 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 792 {
 793         u16 mode = P2P_MODE_DISABLE;
 794 
 795         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 796                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 797                 return -1;
 798 
 799         return 0;
 800 }
 801 
 802 /*
 803  * This function initializes the functionalities for P2P client.
 804  * The P2P client initialization sequence is:
 805  * disable -> device -> client
 806  */
 807 static int
 808 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 809 {
 810         u16 mode;
 811 
 812         if (mwifiex_cfg80211_deinit_p2p(priv))
 813                 return -1;
 814 
 815         mode = P2P_MODE_DEVICE;
 816         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 817                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 818                 return -1;
 819 
 820         mode = P2P_MODE_CLIENT;
 821         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 822                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 823                 return -1;
 824 
 825         return 0;
 826 }
 827 
 828 /*
 829  * This function initializes the functionalities for P2P GO.
 830  * The P2P GO initialization sequence is:
 831  * disable -> device -> GO
 832  */
 833 static int
 834 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 835 {
 836         u16 mode;
 837 
 838         if (mwifiex_cfg80211_deinit_p2p(priv))
 839                 return -1;
 840 
 841         mode = P2P_MODE_DEVICE;
 842         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 843                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 844                 return -1;
 845 
 846         mode = P2P_MODE_GO;
 847         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 848                              HostCmd_ACT_GEN_SET, 0, &mode, true))
 849                 return -1;
 850 
 851         return 0;
 852 }
 853 
 854 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
 855 {
 856         struct mwifiex_adapter *adapter = priv->adapter;
 857         unsigned long flags;
 858 
 859         priv->mgmt_frame_mask = 0;
 860         if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 861                              HostCmd_ACT_GEN_SET, 0,
 862                              &priv->mgmt_frame_mask, false)) {
 863                 mwifiex_dbg(adapter, ERROR,
 864                             "could not unregister mgmt frame rx\n");
 865                 return -1;
 866         }
 867 
 868         mwifiex_deauthenticate(priv, NULL);
 869 
 870         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 871         adapter->main_locked = true;
 872         if (adapter->mwifiex_processing) {
 873                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 874                 flush_workqueue(adapter->workqueue);
 875         } else {
 876                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 877         }
 878 
 879         spin_lock_bh(&adapter->rx_proc_lock);
 880         adapter->rx_locked = true;
 881         if (adapter->rx_processing) {
 882                 spin_unlock_bh(&adapter->rx_proc_lock);
 883                 flush_workqueue(adapter->rx_workqueue);
 884         } else {
 885         spin_unlock_bh(&adapter->rx_proc_lock);
 886         }
 887 
 888         mwifiex_free_priv(priv);
 889         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
 890         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
 891         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 892 
 893         return 0;
 894 }
 895 
 896 static int
 897 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 898                              struct net_device *dev,
 899                              enum nl80211_iftype type)
 900 {
 901         struct mwifiex_adapter *adapter = priv->adapter;
 902         unsigned long flags;
 903 
 904         mwifiex_init_priv(priv);
 905 
 906         priv->bss_mode = type;
 907         priv->wdev.iftype = type;
 908 
 909         mwifiex_init_priv_params(priv, priv->netdev);
 910         priv->bss_started = 0;
 911 
 912         switch (type) {
 913         case NL80211_IFTYPE_STATION:
 914         case NL80211_IFTYPE_ADHOC:
 915                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 916                 break;
 917         case NL80211_IFTYPE_P2P_CLIENT:
 918                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
 919                 break;
 920         case NL80211_IFTYPE_P2P_GO:
 921                 priv->bss_role =  MWIFIEX_BSS_ROLE_UAP;
 922                 break;
 923         case NL80211_IFTYPE_AP:
 924                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 925                 break;
 926         default:
 927                 mwifiex_dbg(adapter, ERROR,
 928                             "%s: changing to %d not supported\n",
 929                             dev->name, type);
 930                 return -EOPNOTSUPP;
 931         }
 932 
 933         spin_lock_irqsave(&adapter->main_proc_lock, flags);
 934         adapter->main_locked = false;
 935         spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 936 
 937         spin_lock_bh(&adapter->rx_proc_lock);
 938         adapter->rx_locked = false;
 939         spin_unlock_bh(&adapter->rx_proc_lock);
 940 
 941         mwifiex_set_mac_address(priv, dev, false, NULL);
 942 
 943         return 0;
 944 }
 945 
 946 static int
 947 mwifiex_change_vif_to_p2p(struct net_device *dev,
 948                           enum nl80211_iftype curr_iftype,
 949                           enum nl80211_iftype type,
 950                           struct vif_params *params)
 951 {
 952         struct mwifiex_private *priv;
 953         struct mwifiex_adapter *adapter;
 954 
 955         priv = mwifiex_netdev_get_priv(dev);
 956 
 957         if (!priv)
 958                 return -1;
 959 
 960         adapter = priv->adapter;
 961 
 962         if (adapter->curr_iface_comb.p2p_intf ==
 963             adapter->iface_limit.p2p_intf) {
 964                 mwifiex_dbg(adapter, ERROR,
 965                             "cannot create multiple P2P ifaces\n");
 966                 return -1;
 967         }
 968 
 969         mwifiex_dbg(adapter, INFO,
 970                     "%s: changing role to p2p\n", dev->name);
 971 
 972         if (mwifiex_deinit_priv_params(priv))
 973                 return -1;
 974         if (mwifiex_init_new_priv_params(priv, dev, type))
 975                 return -1;
 976 
 977         switch (type) {
 978         case NL80211_IFTYPE_P2P_CLIENT:
 979                 if (mwifiex_cfg80211_init_p2p_client(priv))
 980                         return -EFAULT;
 981                 break;
 982         case NL80211_IFTYPE_P2P_GO:
 983                 if (mwifiex_cfg80211_init_p2p_go(priv))
 984                         return -EFAULT;
 985                 break;
 986         default:
 987                 mwifiex_dbg(adapter, ERROR,
 988                             "%s: changing to %d not supported\n",
 989                             dev->name, type);
 990                 return -EOPNOTSUPP;
 991         }
 992 
 993         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
 994                              HostCmd_ACT_GEN_SET, 0, NULL, true))
 995                 return -1;
 996 
 997         if (mwifiex_sta_init_cmd(priv, false, false))
 998                 return -1;
 999 
1000         switch (curr_iftype) {
1001         case NL80211_IFTYPE_STATION:
1002         case NL80211_IFTYPE_ADHOC:
1003                 adapter->curr_iface_comb.sta_intf--;
1004                 break;
1005         case NL80211_IFTYPE_AP:
1006                 adapter->curr_iface_comb.uap_intf--;
1007                 break;
1008         default:
1009                 break;
1010         }
1011 
1012         adapter->curr_iface_comb.p2p_intf++;
1013         dev->ieee80211_ptr->iftype = type;
1014 
1015         return 0;
1016 }
1017 
1018 static int
1019 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
1020                                 enum nl80211_iftype curr_iftype,
1021                                 enum nl80211_iftype type,
1022                                 struct vif_params *params)
1023 {
1024         struct mwifiex_private *priv;
1025         struct mwifiex_adapter *adapter;
1026 
1027         priv = mwifiex_netdev_get_priv(dev);
1028 
1029         if (!priv)
1030                 return -1;
1031 
1032         adapter = priv->adapter;
1033 
1034         if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
1035              curr_iftype != NL80211_IFTYPE_P2P_GO) &&
1036             (adapter->curr_iface_comb.sta_intf ==
1037              adapter->iface_limit.sta_intf)) {
1038                 mwifiex_dbg(adapter, ERROR,
1039                             "cannot create multiple station/adhoc ifaces\n");
1040                 return -1;
1041         }
1042 
1043         if (type == NL80211_IFTYPE_STATION)
1044                 mwifiex_dbg(adapter, INFO,
1045                             "%s: changing role to station\n", dev->name);
1046         else
1047                 mwifiex_dbg(adapter, INFO,
1048                             "%s: changing role to adhoc\n", dev->name);
1049 
1050         if (mwifiex_deinit_priv_params(priv))
1051                 return -1;
1052         if (mwifiex_init_new_priv_params(priv, dev, type))
1053                 return -1;
1054         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1055                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1056                 return -1;
1057         if (mwifiex_sta_init_cmd(priv, false, false))
1058                 return -1;
1059 
1060         switch (curr_iftype) {
1061         case NL80211_IFTYPE_P2P_CLIENT:
1062         case NL80211_IFTYPE_P2P_GO:
1063                 adapter->curr_iface_comb.p2p_intf--;
1064                 break;
1065         case NL80211_IFTYPE_AP:
1066                 adapter->curr_iface_comb.uap_intf--;
1067                 break;
1068         default:
1069                 break;
1070         }
1071 
1072         adapter->curr_iface_comb.sta_intf++;
1073         dev->ieee80211_ptr->iftype = type;
1074         return 0;
1075 }
1076 
1077 static int
1078 mwifiex_change_vif_to_ap(struct net_device *dev,
1079                          enum nl80211_iftype curr_iftype,
1080                          enum nl80211_iftype type,
1081                          struct vif_params *params)
1082 {
1083         struct mwifiex_private *priv;
1084         struct mwifiex_adapter *adapter;
1085 
1086         priv = mwifiex_netdev_get_priv(dev);
1087 
1088         if (!priv)
1089                 return -1;
1090 
1091         adapter = priv->adapter;
1092 
1093         if (adapter->curr_iface_comb.uap_intf ==
1094             adapter->iface_limit.uap_intf) {
1095                 mwifiex_dbg(adapter, ERROR,
1096                             "cannot create multiple AP ifaces\n");
1097                 return -1;
1098         }
1099 
1100         mwifiex_dbg(adapter, INFO,
1101                     "%s: changing role to AP\n", dev->name);
1102 
1103         if (mwifiex_deinit_priv_params(priv))
1104                 return -1;
1105         if (mwifiex_init_new_priv_params(priv, dev, type))
1106                 return -1;
1107         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1108                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1109                 return -1;
1110         if (mwifiex_sta_init_cmd(priv, false, false))
1111                 return -1;
1112 
1113         switch (curr_iftype) {
1114         case NL80211_IFTYPE_P2P_CLIENT:
1115         case NL80211_IFTYPE_P2P_GO:
1116                 adapter->curr_iface_comb.p2p_intf--;
1117                 break;
1118         case NL80211_IFTYPE_STATION:
1119         case NL80211_IFTYPE_ADHOC:
1120                 adapter->curr_iface_comb.sta_intf--;
1121                 break;
1122         default:
1123                 break;
1124         }
1125 
1126         adapter->curr_iface_comb.uap_intf++;
1127         dev->ieee80211_ptr->iftype = type;
1128         return 0;
1129 }
1130 /*
1131  * CFG802.11 operation handler to change interface type.
1132  */
1133 static int
1134 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1135                                      struct net_device *dev,
1136                                      enum nl80211_iftype type,
1137                                      struct vif_params *params)
1138 {
1139         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1140         enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1141 
1142         if (priv->scan_request) {
1143                 mwifiex_dbg(priv->adapter, ERROR,
1144                             "change virtual interface: scan in process\n");
1145                 return -EBUSY;
1146         }
1147 
1148         switch (curr_iftype) {
1149         case NL80211_IFTYPE_ADHOC:
1150                 switch (type) {
1151                 case NL80211_IFTYPE_STATION:
1152                         priv->bss_mode = type;
1153                         priv->sec_info.authentication_mode =
1154                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1155                         dev->ieee80211_ptr->iftype = type;
1156                         mwifiex_deauthenticate(priv, NULL);
1157                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1158                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1159                                                 true);
1160                 case NL80211_IFTYPE_P2P_CLIENT:
1161                 case NL80211_IFTYPE_P2P_GO:
1162                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1163                                                          type, params);
1164                 case NL80211_IFTYPE_AP:
1165                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1166                                                         params);
1167                 case NL80211_IFTYPE_UNSPECIFIED:
1168                         mwifiex_dbg(priv->adapter, INFO,
1169                                     "%s: kept type as IBSS\n", dev->name);
1170                         /* fall through */
1171                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
1172                         return 0;
1173                 default:
1174                         mwifiex_dbg(priv->adapter, ERROR,
1175                                     "%s: changing to %d not supported\n",
1176                                     dev->name, type);
1177                         return -EOPNOTSUPP;
1178                 }
1179                 break;
1180         case NL80211_IFTYPE_STATION:
1181                 switch (type) {
1182                 case NL80211_IFTYPE_ADHOC:
1183                         priv->bss_mode = type;
1184                         priv->sec_info.authentication_mode =
1185                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1186                         dev->ieee80211_ptr->iftype = type;
1187                         mwifiex_deauthenticate(priv, NULL);
1188                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1189                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1190                                                 true);
1191                 case NL80211_IFTYPE_P2P_CLIENT:
1192                 case NL80211_IFTYPE_P2P_GO:
1193                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1194                                                          type, params);
1195                 case NL80211_IFTYPE_AP:
1196                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1197                                                         params);
1198                 case NL80211_IFTYPE_UNSPECIFIED:
1199                         mwifiex_dbg(priv->adapter, INFO,
1200                                     "%s: kept type as STA\n", dev->name);
1201                         /* fall through */
1202                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
1203                         return 0;
1204                 default:
1205                         mwifiex_dbg(priv->adapter, ERROR,
1206                                     "%s: changing to %d not supported\n",
1207                                     dev->name, type);
1208                         return -EOPNOTSUPP;
1209                 }
1210                 break;
1211         case NL80211_IFTYPE_AP:
1212                 switch (type) {
1213                 case NL80211_IFTYPE_ADHOC:
1214                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1215                                                                type, params);
1216                         break;
1217                 case NL80211_IFTYPE_P2P_CLIENT:
1218                 case NL80211_IFTYPE_P2P_GO:
1219                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1220                                                          type, params);
1221                 case NL80211_IFTYPE_UNSPECIFIED:
1222                         mwifiex_dbg(priv->adapter, INFO,
1223                                     "%s: kept type as AP\n", dev->name);
1224                         /* fall through */
1225                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
1226                         return 0;
1227                 default:
1228                         mwifiex_dbg(priv->adapter, ERROR,
1229                                     "%s: changing to %d not supported\n",
1230                                     dev->name, type);
1231                         return -EOPNOTSUPP;
1232                 }
1233                 break;
1234         case NL80211_IFTYPE_P2P_CLIENT:
1235         case NL80211_IFTYPE_P2P_GO:
1236                 switch (type) {
1237                 case NL80211_IFTYPE_STATION:
1238                         if (mwifiex_cfg80211_deinit_p2p(priv))
1239                                 return -EFAULT;
1240                         priv->adapter->curr_iface_comb.p2p_intf--;
1241                         priv->adapter->curr_iface_comb.sta_intf++;
1242                         dev->ieee80211_ptr->iftype = type;
1243                         if (mwifiex_deinit_priv_params(priv))
1244                                 return -1;
1245                         if (mwifiex_init_new_priv_params(priv, dev, type))
1246                                 return -1;
1247                         if (mwifiex_sta_init_cmd(priv, false, false))
1248                                 return -1;
1249                         break;
1250                 case NL80211_IFTYPE_ADHOC:
1251                         if (mwifiex_cfg80211_deinit_p2p(priv))
1252                                 return -EFAULT;
1253                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1254                                                                type, params);
1255                         break;
1256                 case NL80211_IFTYPE_AP:
1257                         if (mwifiex_cfg80211_deinit_p2p(priv))
1258                                 return -EFAULT;
1259                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1260                                                         params);
1261                 case NL80211_IFTYPE_UNSPECIFIED:
1262                         mwifiex_dbg(priv->adapter, INFO,
1263                                     "%s: kept type as P2P\n", dev->name);
1264                         /* fall through */
1265                 case NL80211_IFTYPE_P2P_CLIENT:
1266                 case NL80211_IFTYPE_P2P_GO:
1267                         return 0;
1268                 default:
1269                         mwifiex_dbg(priv->adapter, ERROR,
1270                                     "%s: changing to %d not supported\n",
1271                                     dev->name, type);
1272                         return -EOPNOTSUPP;
1273                 }
1274                 break;
1275         default:
1276                 mwifiex_dbg(priv->adapter, ERROR,
1277                             "%s: unknown iftype: %d\n",
1278                             dev->name, dev->ieee80211_ptr->iftype);
1279                 return -EOPNOTSUPP;
1280         }
1281 
1282 
1283         return 0;
1284 }
1285 
1286 static void
1287 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 rateinfo, u8 htinfo,
1288                      struct rate_info *rate)
1289 {
1290         struct mwifiex_adapter *adapter = priv->adapter;
1291 
1292         if (adapter->is_hw_11ac_capable) {
1293                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1294                 if (htinfo & BIT(0)) {
1295                         /* HT */
1296                         rate->mcs = rateinfo;
1297                         rate->flags |= RATE_INFO_FLAGS_MCS;
1298                 }
1299                 if (htinfo & BIT(1)) {
1300                         /* VHT */
1301                         rate->mcs = rateinfo & 0x0F;
1302                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1303                 }
1304 
1305                 if (htinfo & (BIT(1) | BIT(0))) {
1306                         /* HT or VHT */
1307                         switch (htinfo & (BIT(3) | BIT(2))) {
1308                         case 0:
1309                                 rate->bw = RATE_INFO_BW_20;
1310                                 break;
1311                         case (BIT(2)):
1312                                 rate->bw = RATE_INFO_BW_40;
1313                                 break;
1314                         case (BIT(3)):
1315                                 rate->bw = RATE_INFO_BW_80;
1316                                 break;
1317                         case (BIT(3) | BIT(2)):
1318                                 rate->bw = RATE_INFO_BW_160;
1319                                 break;
1320                         }
1321 
1322                         if (htinfo & BIT(4))
1323                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1324 
1325                         if ((rateinfo >> 4) == 1)
1326                                 rate->nss = 2;
1327                         else
1328                                 rate->nss = 1;
1329                 }
1330         } else {
1331                 /*
1332                  * Bit 0 in htinfo indicates that current rate is 11n. Valid
1333                  * MCS index values for us are 0 to 15.
1334                  */
1335                 if ((htinfo & BIT(0)) && (rateinfo < 16)) {
1336                         rate->mcs = rateinfo;
1337                         rate->flags |= RATE_INFO_FLAGS_MCS;
1338                         rate->bw = RATE_INFO_BW_20;
1339                         if (htinfo & BIT(1))
1340                                 rate->bw = RATE_INFO_BW_40;
1341                         if (htinfo & BIT(2))
1342                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1343                 }
1344         }
1345 
1346         /* Decode legacy rates for non-HT. */
1347         if (!(htinfo & (BIT(0) | BIT(1)))) {
1348                 /* Bitrates in multiples of 100kb/s. */
1349                 static const int legacy_rates[] = {
1350                         [0] = 10,
1351                         [1] = 20,
1352                         [2] = 55,
1353                         [3] = 110,
1354                         [4] = 60, /* MWIFIEX_RATE_INDEX_OFDM0 */
1355                         [5] = 60,
1356                         [6] = 90,
1357                         [7] = 120,
1358                         [8] = 180,
1359                         [9] = 240,
1360                         [10] = 360,
1361                         [11] = 480,
1362                         [12] = 540,
1363                 };
1364                 if (rateinfo < ARRAY_SIZE(legacy_rates))
1365                         rate->legacy = legacy_rates[rateinfo];
1366         }
1367 }
1368 
1369 /*
1370  * This function dumps the station information on a buffer.
1371  *
1372  * The following information are shown -
1373  *      - Total bytes transmitted
1374  *      - Total bytes received
1375  *      - Total packets transmitted
1376  *      - Total packets received
1377  *      - Signal quality level
1378  *      - Transmission rate
1379  */
1380 static int
1381 mwifiex_dump_station_info(struct mwifiex_private *priv,
1382                           struct mwifiex_sta_node *node,
1383                           struct station_info *sinfo)
1384 {
1385         u32 rate;
1386 
1387         sinfo->filled = BIT_ULL(NL80211_STA_INFO_RX_BYTES) | BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
1388                         BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |
1389                         BIT_ULL(NL80211_STA_INFO_TX_BITRATE) |
1390                         BIT_ULL(NL80211_STA_INFO_SIGNAL) | BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
1391 
1392         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1393                 if (!node)
1394                         return -ENOENT;
1395 
1396                 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) |
1397                                 BIT_ULL(NL80211_STA_INFO_TX_FAILED);
1398                 sinfo->inactive_time =
1399                         jiffies_to_msecs(jiffies - node->stats.last_rx);
1400 
1401                 sinfo->signal = node->stats.rssi;
1402                 sinfo->signal_avg = node->stats.rssi;
1403                 sinfo->rx_bytes = node->stats.rx_bytes;
1404                 sinfo->tx_bytes = node->stats.tx_bytes;
1405                 sinfo->rx_packets = node->stats.rx_packets;
1406                 sinfo->tx_packets = node->stats.tx_packets;
1407                 sinfo->tx_failed = node->stats.tx_failed;
1408 
1409                 mwifiex_parse_htinfo(priv, priv->tx_rate,
1410                                      node->stats.last_tx_htinfo,
1411                                      &sinfo->txrate);
1412                 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1413 
1414                 return 0;
1415         }
1416 
1417         /* Get signal information from the firmware */
1418         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1419                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1420                 mwifiex_dbg(priv->adapter, ERROR,
1421                             "failed to get signal information\n");
1422                 return -EFAULT;
1423         }
1424 
1425         if (mwifiex_drv_get_data_rate(priv, &rate)) {
1426                 mwifiex_dbg(priv->adapter, ERROR,
1427                             "getting data rate error\n");
1428                 return -EFAULT;
1429         }
1430 
1431         /* Get DTIM period information from firmware */
1432         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1433                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1434                          &priv->dtim_period, true);
1435 
1436         mwifiex_parse_htinfo(priv, priv->tx_rate, priv->tx_htinfo,
1437                              &sinfo->txrate);
1438 
1439         sinfo->signal_avg = priv->bcn_rssi_avg;
1440         sinfo->rx_bytes = priv->stats.rx_bytes;
1441         sinfo->tx_bytes = priv->stats.tx_bytes;
1442         sinfo->rx_packets = priv->stats.rx_packets;
1443         sinfo->tx_packets = priv->stats.tx_packets;
1444         sinfo->signal = priv->bcn_rssi_avg;
1445         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1446         sinfo->txrate.legacy = rate * 5;
1447 
1448         sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE);
1449         mwifiex_parse_htinfo(priv, priv->rxpd_rate, priv->rxpd_htinfo,
1450                              &sinfo->rxrate);
1451 
1452         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1453                 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM);
1454                 sinfo->bss_param.flags = 0;
1455                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1456                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
1457                         sinfo->bss_param.flags |=
1458                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1459                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1460                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1461                         sinfo->bss_param.flags |=
1462                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1463                 sinfo->bss_param.dtim_period = priv->dtim_period;
1464                 sinfo->bss_param.beacon_interval =
1465                         priv->curr_bss_params.bss_descriptor.beacon_period;
1466         }
1467 
1468         return 0;
1469 }
1470 
1471 /*
1472  * CFG802.11 operation handler to get station information.
1473  *
1474  * This function only works in connected mode, and dumps the
1475  * requested station information, if available.
1476  */
1477 static int
1478 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1479                              const u8 *mac, struct station_info *sinfo)
1480 {
1481         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1482 
1483         if (!priv->media_connected)
1484                 return -ENOENT;
1485         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1486                 return -ENOENT;
1487 
1488         return mwifiex_dump_station_info(priv, NULL, sinfo);
1489 }
1490 
1491 /*
1492  * CFG802.11 operation handler to dump station information.
1493  */
1494 static int
1495 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1496                               int idx, u8 *mac, struct station_info *sinfo)
1497 {
1498         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1499         static struct mwifiex_sta_node *node;
1500 
1501         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1502             priv->media_connected && idx == 0) {
1503                 ether_addr_copy(mac, priv->cfg_bssid);
1504                 return mwifiex_dump_station_info(priv, NULL, sinfo);
1505         } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1506                 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1507                                  HostCmd_ACT_GEN_GET, 0, NULL, true);
1508 
1509                 if (node && (&node->list == &priv->sta_list)) {
1510                         node = NULL;
1511                         return -ENOENT;
1512                 }
1513 
1514                 node = list_prepare_entry(node, &priv->sta_list, list);
1515                 list_for_each_entry_continue(node, &priv->sta_list, list) {
1516                         ether_addr_copy(mac, node->mac_addr);
1517                         return mwifiex_dump_station_info(priv, node, sinfo);
1518                 }
1519         }
1520 
1521         return -ENOENT;
1522 }
1523 
1524 static int
1525 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1526                              int idx, struct survey_info *survey)
1527 {
1528         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1529         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1530         enum nl80211_band band;
1531 
1532         mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1533 
1534         memset(survey, 0, sizeof(struct survey_info));
1535 
1536         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1537             priv->media_connected && idx == 0) {
1538                         u8 curr_bss_band = priv->curr_bss_params.band;
1539                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1540 
1541                         band = mwifiex_band_to_radio_type(curr_bss_band);
1542                         survey->channel = ieee80211_get_channel(wiphy,
1543                                 ieee80211_channel_to_frequency(chan, band));
1544 
1545                         if (priv->bcn_nf_last) {
1546                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1547                                 survey->noise = priv->bcn_nf_last;
1548                         }
1549                         return 0;
1550         }
1551 
1552         if (idx >= priv->adapter->num_in_chan_stats)
1553                 return -ENOENT;
1554 
1555         if (!pchan_stats[idx].cca_scan_dur)
1556                 return 0;
1557 
1558         band = pchan_stats[idx].bandcfg;
1559         survey->channel = ieee80211_get_channel(wiphy,
1560             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1561         survey->filled = SURVEY_INFO_NOISE_DBM |
1562                          SURVEY_INFO_TIME |
1563                          SURVEY_INFO_TIME_BUSY;
1564         survey->noise = pchan_stats[idx].noise;
1565         survey->time = pchan_stats[idx].cca_scan_dur;
1566         survey->time_busy = pchan_stats[idx].cca_busy_dur;
1567 
1568         return 0;
1569 }
1570 
1571 /* Supported rates to be advertised to the cfg80211 */
1572 static struct ieee80211_rate mwifiex_rates[] = {
1573         {.bitrate = 10, .hw_value = 2, },
1574         {.bitrate = 20, .hw_value = 4, },
1575         {.bitrate = 55, .hw_value = 11, },
1576         {.bitrate = 110, .hw_value = 22, },
1577         {.bitrate = 60, .hw_value = 12, },
1578         {.bitrate = 90, .hw_value = 18, },
1579         {.bitrate = 120, .hw_value = 24, },
1580         {.bitrate = 180, .hw_value = 36, },
1581         {.bitrate = 240, .hw_value = 48, },
1582         {.bitrate = 360, .hw_value = 72, },
1583         {.bitrate = 480, .hw_value = 96, },
1584         {.bitrate = 540, .hw_value = 108, },
1585 };
1586 
1587 /* Channel definitions to be advertised to cfg80211 */
1588 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1589         {.center_freq = 2412, .hw_value = 1, },
1590         {.center_freq = 2417, .hw_value = 2, },
1591         {.center_freq = 2422, .hw_value = 3, },
1592         {.center_freq = 2427, .hw_value = 4, },
1593         {.center_freq = 2432, .hw_value = 5, },
1594         {.center_freq = 2437, .hw_value = 6, },
1595         {.center_freq = 2442, .hw_value = 7, },
1596         {.center_freq = 2447, .hw_value = 8, },
1597         {.center_freq = 2452, .hw_value = 9, },
1598         {.center_freq = 2457, .hw_value = 10, },
1599         {.center_freq = 2462, .hw_value = 11, },
1600         {.center_freq = 2467, .hw_value = 12, },
1601         {.center_freq = 2472, .hw_value = 13, },
1602         {.center_freq = 2484, .hw_value = 14, },
1603 };
1604 
1605 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1606         .channels = mwifiex_channels_2ghz,
1607         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1608         .bitrates = mwifiex_rates,
1609         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1610 };
1611 
1612 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1613         {.center_freq = 5040, .hw_value = 8, },
1614         {.center_freq = 5060, .hw_value = 12, },
1615         {.center_freq = 5080, .hw_value = 16, },
1616         {.center_freq = 5170, .hw_value = 34, },
1617         {.center_freq = 5190, .hw_value = 38, },
1618         {.center_freq = 5210, .hw_value = 42, },
1619         {.center_freq = 5230, .hw_value = 46, },
1620         {.center_freq = 5180, .hw_value = 36, },
1621         {.center_freq = 5200, .hw_value = 40, },
1622         {.center_freq = 5220, .hw_value = 44, },
1623         {.center_freq = 5240, .hw_value = 48, },
1624         {.center_freq = 5260, .hw_value = 52, },
1625         {.center_freq = 5280, .hw_value = 56, },
1626         {.center_freq = 5300, .hw_value = 60, },
1627         {.center_freq = 5320, .hw_value = 64, },
1628         {.center_freq = 5500, .hw_value = 100, },
1629         {.center_freq = 5520, .hw_value = 104, },
1630         {.center_freq = 5540, .hw_value = 108, },
1631         {.center_freq = 5560, .hw_value = 112, },
1632         {.center_freq = 5580, .hw_value = 116, },
1633         {.center_freq = 5600, .hw_value = 120, },
1634         {.center_freq = 5620, .hw_value = 124, },
1635         {.center_freq = 5640, .hw_value = 128, },
1636         {.center_freq = 5660, .hw_value = 132, },
1637         {.center_freq = 5680, .hw_value = 136, },
1638         {.center_freq = 5700, .hw_value = 140, },
1639         {.center_freq = 5745, .hw_value = 149, },
1640         {.center_freq = 5765, .hw_value = 153, },
1641         {.center_freq = 5785, .hw_value = 157, },
1642         {.center_freq = 5805, .hw_value = 161, },
1643         {.center_freq = 5825, .hw_value = 165, },
1644 };
1645 
1646 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1647         .channels = mwifiex_channels_5ghz,
1648         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1649         .bitrates = mwifiex_rates + 4,
1650         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1651 };
1652 
1653 
1654 /* Supported crypto cipher suits to be advertised to cfg80211 */
1655 static const u32 mwifiex_cipher_suites[] = {
1656         WLAN_CIPHER_SUITE_WEP40,
1657         WLAN_CIPHER_SUITE_WEP104,
1658         WLAN_CIPHER_SUITE_TKIP,
1659         WLAN_CIPHER_SUITE_CCMP,
1660         WLAN_CIPHER_SUITE_SMS4,
1661         WLAN_CIPHER_SUITE_AES_CMAC,
1662 };
1663 
1664 /* Supported mgmt frame types to be advertised to cfg80211 */
1665 static const struct ieee80211_txrx_stypes
1666 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1667         [NL80211_IFTYPE_STATION] = {
1668                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1669                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1670                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1671                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1672         },
1673         [NL80211_IFTYPE_AP] = {
1674                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1675                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1676                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1677                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1678         },
1679         [NL80211_IFTYPE_P2P_CLIENT] = {
1680                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1681                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1682                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1683                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1684         },
1685         [NL80211_IFTYPE_P2P_GO] = {
1686                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1687                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1688                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1689                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1690         },
1691 };
1692 
1693 /*
1694  * CFG802.11 operation handler for setting bit rates.
1695  *
1696  * Function configures data rates to firmware using bitrate mask
1697  * provided by cfg80211.
1698  */
1699 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1700                                 struct net_device *dev,
1701                                 const u8 *peer,
1702                                 const struct cfg80211_bitrate_mask *mask)
1703 {
1704         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1705         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1706         enum nl80211_band band;
1707         struct mwifiex_adapter *adapter = priv->adapter;
1708 
1709         if (!priv->media_connected) {
1710                 mwifiex_dbg(adapter, ERROR,
1711                             "Can not set Tx data rate in disconnected state\n");
1712                 return -EINVAL;
1713         }
1714 
1715         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1716 
1717         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1718 
1719         /* Fill HR/DSSS rates. */
1720         if (band == NL80211_BAND_2GHZ)
1721                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1722 
1723         /* Fill OFDM rates */
1724         if (band == NL80211_BAND_2GHZ)
1725                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1726         else
1727                 bitmap_rates[1] = mask->control[band].legacy;
1728 
1729         /* Fill HT MCS rates */
1730         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1731         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1732                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1733 
1734        /* Fill VHT MCS rates */
1735         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1736                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1737                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1738                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1739         }
1740 
1741         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1742                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1743 }
1744 
1745 /*
1746  * CFG802.11 operation handler for connection quality monitoring.
1747  *
1748  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1749  * events to FW.
1750  */
1751 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1752                                                 struct net_device *dev,
1753                                                 s32 rssi_thold, u32 rssi_hyst)
1754 {
1755         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1756         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1757 
1758         priv->cqm_rssi_thold = rssi_thold;
1759         priv->cqm_rssi_hyst = rssi_hyst;
1760 
1761         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1762         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1763 
1764         /* Subscribe/unsubscribe low and high rssi events */
1765         if (rssi_thold && rssi_hyst) {
1766                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1767                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1768                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1769                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1770                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1771                 return mwifiex_send_cmd(priv,
1772                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1773                                         0, 0, &subsc_evt, true);
1774         } else {
1775                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1776                 return mwifiex_send_cmd(priv,
1777                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1778                                         0, 0, &subsc_evt, true);
1779         }
1780 
1781         return 0;
1782 }
1783 
1784 /* cfg80211 operation handler for change_beacon.
1785  * Function retrieves and sets modified management IEs to FW.
1786  */
1787 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1788                                           struct net_device *dev,
1789                                           struct cfg80211_beacon_data *data)
1790 {
1791         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1792         struct mwifiex_adapter *adapter = priv->adapter;
1793 
1794         mwifiex_cancel_scan(adapter);
1795 
1796         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1797                 mwifiex_dbg(priv->adapter, ERROR,
1798                             "%s: bss_type mismatched\n", __func__);
1799                 return -EINVAL;
1800         }
1801 
1802         if (!priv->bss_started) {
1803                 mwifiex_dbg(priv->adapter, ERROR,
1804                             "%s: bss not started\n", __func__);
1805                 return -EINVAL;
1806         }
1807 
1808         if (mwifiex_set_mgmt_ies(priv, data)) {
1809                 mwifiex_dbg(priv->adapter, ERROR,
1810                             "%s: setting mgmt ies failed\n", __func__);
1811                 return -EFAULT;
1812         }
1813 
1814         return 0;
1815 }
1816 
1817 /* cfg80211 operation handler for del_station.
1818  * Function deauthenticates station which value is provided in mac parameter.
1819  * If mac is NULL/broadcast, all stations in associated station list are
1820  * deauthenticated. If bss is not started or there are no stations in
1821  * associated stations list, no action is taken.
1822  */
1823 static int
1824 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1825                              struct station_del_parameters *params)
1826 {
1827         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1828         struct mwifiex_sta_node *sta_node;
1829         u8 deauth_mac[ETH_ALEN];
1830 
1831         if (!priv->bss_started && priv->wdev.cac_started) {
1832                 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1833                 mwifiex_abort_cac(priv);
1834         }
1835 
1836         if (list_empty(&priv->sta_list) || !priv->bss_started)
1837                 return 0;
1838 
1839         if (!params->mac || is_broadcast_ether_addr(params->mac))
1840                 return 0;
1841 
1842         mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1843                     __func__, params->mac);
1844 
1845         eth_zero_addr(deauth_mac);
1846 
1847         spin_lock_bh(&priv->sta_list_spinlock);
1848         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1849         if (sta_node)
1850                 ether_addr_copy(deauth_mac, params->mac);
1851         spin_unlock_bh(&priv->sta_list_spinlock);
1852 
1853         if (is_valid_ether_addr(deauth_mac)) {
1854                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1855                                      HostCmd_ACT_GEN_SET, 0,
1856                                      deauth_mac, true))
1857                         return -1;
1858         }
1859 
1860         return 0;
1861 }
1862 
1863 static int
1864 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1865 {
1866         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1867         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1868                                                         MWIFIEX_BSS_ROLE_ANY);
1869         struct mwifiex_ds_ant_cfg ant_cfg;
1870 
1871         if (!tx_ant || !rx_ant)
1872                 return -EOPNOTSUPP;
1873 
1874         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1875                 /* Not a MIMO chip. User should provide specific antenna number
1876                  * for Tx/Rx path or enable all antennas for diversity
1877                  */
1878                 if (tx_ant != rx_ant)
1879                         return -EOPNOTSUPP;
1880 
1881                 if ((tx_ant & (tx_ant - 1)) &&
1882                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1883                         return -EOPNOTSUPP;
1884 
1885                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1886                     (priv->adapter->number_of_antenna > 1)) {
1887                         tx_ant = RF_ANTENNA_AUTO;
1888                         rx_ant = RF_ANTENNA_AUTO;
1889                 }
1890         } else {
1891                 struct ieee80211_sta_ht_cap *ht_info;
1892                 int rx_mcs_supp;
1893                 enum nl80211_band band;
1894 
1895                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1896                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1897                         if (adapter->is_hw_11ac_capable)
1898                                 adapter->usr_dot_11ac_mcs_support =
1899                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1900                 } else {
1901                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1902                         if (adapter->is_hw_11ac_capable)
1903                                 adapter->usr_dot_11ac_mcs_support =
1904                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1905                 }
1906 
1907                 for (band = 0; band < NUM_NL80211_BANDS; band++) {
1908                         if (!adapter->wiphy->bands[band])
1909                                 continue;
1910 
1911                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1912                         rx_mcs_supp =
1913                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1914                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1915                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1916                 }
1917         }
1918 
1919         ant_cfg.tx_ant = tx_ant;
1920         ant_cfg.rx_ant = rx_ant;
1921 
1922         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1923                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1924 }
1925 
1926 static int
1927 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1928 {
1929         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1930         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1931                                                         MWIFIEX_BSS_ROLE_ANY);
1932         mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1933                          HostCmd_ACT_GEN_GET, 0, NULL, true);
1934 
1935         *tx_ant = priv->tx_ant;
1936         *rx_ant = priv->rx_ant;
1937 
1938         return 0;
1939 }
1940 
1941 /* cfg80211 operation handler for stop ap.
1942  * Function stops BSS running at uAP interface.
1943  */
1944 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1945 {
1946         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1947 
1948         mwifiex_abort_cac(priv);
1949 
1950         if (mwifiex_del_mgmt_ies(priv))
1951                 mwifiex_dbg(priv->adapter, ERROR,
1952                             "Failed to delete mgmt IEs!\n");
1953 
1954         priv->ap_11n_enabled = 0;
1955         memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1956 
1957         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1958                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1959                 mwifiex_dbg(priv->adapter, ERROR,
1960                             "Failed to stop the BSS\n");
1961                 return -1;
1962         }
1963 
1964         if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1965                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1966                 mwifiex_dbg(priv->adapter, ERROR,
1967                             "Failed to reset BSS\n");
1968                 return -1;
1969         }
1970 
1971         if (netif_carrier_ok(priv->netdev))
1972                 netif_carrier_off(priv->netdev);
1973         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1974 
1975         return 0;
1976 }
1977 
1978 /* cfg80211 operation handler for start_ap.
1979  * Function sets beacon period, DTIM period, SSID and security into
1980  * AP config structure.
1981  * AP is configured with these settings and BSS is started.
1982  */
1983 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1984                                      struct net_device *dev,
1985                                      struct cfg80211_ap_settings *params)
1986 {
1987         struct mwifiex_uap_bss_param *bss_cfg;
1988         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1989 
1990         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1991                 return -1;
1992 
1993         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1994         if (!bss_cfg)
1995                 return -ENOMEM;
1996 
1997         mwifiex_set_sys_config_invalid_data(bss_cfg);
1998 
1999         if (params->beacon_interval)
2000                 bss_cfg->beacon_period = params->beacon_interval;
2001         if (params->dtim_period)
2002                 bss_cfg->dtim_period = params->dtim_period;
2003 
2004         if (params->ssid && params->ssid_len) {
2005                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
2006                 bss_cfg->ssid.ssid_len = params->ssid_len;
2007         }
2008         if (params->inactivity_timeout > 0) {
2009                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
2010                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
2011                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
2012         }
2013 
2014         switch (params->hidden_ssid) {
2015         case NL80211_HIDDEN_SSID_NOT_IN_USE:
2016                 bss_cfg->bcast_ssid_ctl = 1;
2017                 break;
2018         case NL80211_HIDDEN_SSID_ZERO_LEN:
2019                 bss_cfg->bcast_ssid_ctl = 0;
2020                 break;
2021         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
2022                 bss_cfg->bcast_ssid_ctl = 2;
2023                 break;
2024         default:
2025                 kfree(bss_cfg);
2026                 return -EINVAL;
2027         }
2028 
2029         mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
2030         mwifiex_set_uap_rates(bss_cfg, params);
2031 
2032         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
2033                 mwifiex_dbg(priv->adapter, ERROR,
2034                             "Failed to parse security parameters!\n");
2035                 goto out;
2036         }
2037 
2038         mwifiex_set_ht_params(priv, bss_cfg, params);
2039 
2040         if (priv->adapter->is_hw_11ac_capable) {
2041                 mwifiex_set_vht_params(priv, bss_cfg, params);
2042                 mwifiex_set_vht_width(priv, params->chandef.width,
2043                                       priv->ap_11ac_enabled);
2044         }
2045 
2046         if (priv->ap_11ac_enabled)
2047                 mwifiex_set_11ac_ba_params(priv);
2048         else
2049                 mwifiex_set_ba_params(priv);
2050 
2051         mwifiex_set_wmm_params(priv, bss_cfg, params);
2052 
2053         if (mwifiex_is_11h_active(priv))
2054                 mwifiex_set_tpc_params(priv, bss_cfg, params);
2055 
2056         if (mwifiex_is_11h_active(priv) &&
2057             !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
2058                                            priv->bss_mode)) {
2059                 mwifiex_dbg(priv->adapter, INFO,
2060                             "Disable 11h extensions in FW\n");
2061                 if (mwifiex_11h_activate(priv, false)) {
2062                         mwifiex_dbg(priv->adapter, ERROR,
2063                                     "Failed to disable 11h extensions!!");
2064                         goto out;
2065                 }
2066                 priv->state_11h.is_11h_active = false;
2067         }
2068 
2069         mwifiex_config_uap_11d(priv, &params->beacon);
2070 
2071         if (mwifiex_config_start_uap(priv, bss_cfg)) {
2072                 mwifiex_dbg(priv->adapter, ERROR,
2073                             "Failed to start AP\n");
2074                 goto out;
2075         }
2076 
2077         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
2078                 goto out;
2079 
2080         if (!netif_carrier_ok(priv->netdev))
2081                 netif_carrier_on(priv->netdev);
2082         mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
2083 
2084         memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
2085         kfree(bss_cfg);
2086         return 0;
2087 
2088 out:
2089         kfree(bss_cfg);
2090         return -1;
2091 }
2092 
2093 /*
2094  * CFG802.11 operation handler for disconnection request.
2095  *
2096  * This function does not work when there is already a disconnection
2097  * procedure going on.
2098  */
2099 static int
2100 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2101                             u16 reason_code)
2102 {
2103         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2104 
2105         if (!mwifiex_stop_bg_scan(priv))
2106                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2107 
2108         if (mwifiex_deauthenticate(priv, NULL))
2109                 return -EFAULT;
2110 
2111         eth_zero_addr(priv->cfg_bssid);
2112         priv->hs2_enabled = false;
2113 
2114         return 0;
2115 }
2116 
2117 /*
2118  * This function informs the CFG802.11 subsystem of a new IBSS.
2119  *
2120  * The following information are sent to the CFG802.11 subsystem
2121  * to register the new IBSS. If we do not register the new IBSS,
2122  * a kernel panic will result.
2123  *      - SSID
2124  *      - SSID length
2125  *      - BSSID
2126  *      - Channel
2127  */
2128 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2129 {
2130         struct ieee80211_channel *chan;
2131         struct mwifiex_bss_info bss_info;
2132         struct cfg80211_bss *bss;
2133         int ie_len;
2134         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2135         enum nl80211_band band;
2136 
2137         if (mwifiex_get_bss_info(priv, &bss_info))
2138                 return -1;
2139 
2140         ie_buf[0] = WLAN_EID_SSID;
2141         ie_buf[1] = bss_info.ssid.ssid_len;
2142 
2143         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2144                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2145         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2146 
2147         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2148         chan = ieee80211_get_channel(priv->wdev.wiphy,
2149                         ieee80211_channel_to_frequency(bss_info.bss_chan,
2150                                                        band));
2151 
2152         bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2153                                   CFG80211_BSS_FTYPE_UNKNOWN,
2154                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2155                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
2156         if (bss) {
2157                 cfg80211_put_bss(priv->wdev.wiphy, bss);
2158                 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2159         }
2160 
2161         return 0;
2162 }
2163 
2164 /*
2165  * This function connects with a BSS.
2166  *
2167  * This function handles both Infra and Ad-Hoc modes. It also performs
2168  * validity checking on the provided parameters, disconnects from the
2169  * current BSS (if any), sets up the association/scan parameters,
2170  * including security settings, and performs specific SSID scan before
2171  * trying to connect.
2172  *
2173  * For Infra mode, the function returns failure if the specified SSID
2174  * is not found in scan table. However, for Ad-Hoc mode, it can create
2175  * the IBSS if it does not exist. On successful completion in either case,
2176  * the function notifies the CFG802.11 subsystem of the new BSS connection.
2177  */
2178 static int
2179 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2180                        const u8 *ssid, const u8 *bssid, int mode,
2181                        struct ieee80211_channel *channel,
2182                        struct cfg80211_connect_params *sme, bool privacy)
2183 {
2184         struct cfg80211_ssid req_ssid;
2185         int ret, auth_type = 0;
2186         struct cfg80211_bss *bss = NULL;
2187         u8 is_scanning_required = 0;
2188 
2189         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2190 
2191         req_ssid.ssid_len = ssid_len;
2192         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2193                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2194                 return -EINVAL;
2195         }
2196 
2197         memcpy(req_ssid.ssid, ssid, ssid_len);
2198         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2199                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2200                 return -EINVAL;
2201         }
2202 
2203         /* As this is new association, clear locally stored
2204          * keys and security related flags */
2205         priv->sec_info.wpa_enabled = false;
2206         priv->sec_info.wpa2_enabled = false;
2207         priv->wep_key_curr_index = 0;
2208         priv->sec_info.encryption_mode = 0;
2209         priv->sec_info.is_authtype_auto = 0;
2210         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2211 
2212         if (mode == NL80211_IFTYPE_ADHOC) {
2213                 u16 enable = true;
2214 
2215                 /* set ibss coalescing_status */
2216                 ret = mwifiex_send_cmd(
2217                                 priv,
2218                                 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
2219                                 HostCmd_ACT_GEN_SET, 0, &enable, true);
2220                 if (ret)
2221                         return ret;
2222 
2223                 /* "privacy" is set only for ad-hoc mode */
2224                 if (privacy) {
2225                         /*
2226                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2227                          * the firmware can find a matching network from the
2228                          * scan. The cfg80211 does not give us the encryption
2229                          * mode at this stage so just setting it to WEP here.
2230                          */
2231                         priv->sec_info.encryption_mode =
2232                                         WLAN_CIPHER_SUITE_WEP104;
2233                         priv->sec_info.authentication_mode =
2234                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
2235                 }
2236 
2237                 goto done;
2238         }
2239 
2240         /* Now handle infra mode. "sme" is valid for infra mode only */
2241         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2242                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2243                 priv->sec_info.is_authtype_auto = 1;
2244         } else {
2245                 auth_type = sme->auth_type;
2246         }
2247 
2248         if (sme->crypto.n_ciphers_pairwise) {
2249                 priv->sec_info.encryption_mode =
2250                                                 sme->crypto.ciphers_pairwise[0];
2251                 priv->sec_info.authentication_mode = auth_type;
2252         }
2253 
2254         if (sme->crypto.cipher_group) {
2255                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2256                 priv->sec_info.authentication_mode = auth_type;
2257         }
2258         if (sme->ie)
2259                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2260 
2261         if (sme->key) {
2262                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2263                         mwifiex_dbg(priv->adapter, INFO,
2264                                     "info: setting wep encryption\t"
2265                                     "with key len %d\n", sme->key_len);
2266                         priv->wep_key_curr_index = sme->key_idx;
2267                         ret = mwifiex_set_encode(priv, NULL, sme->key,
2268                                                  sme->key_len, sme->key_idx,
2269                                                  NULL, 0);
2270                 }
2271         }
2272 done:
2273         /*
2274          * Scan entries are valid for some time (15 sec). So we can save one
2275          * active scan time if we just try cfg80211_get_bss first. If it fails
2276          * then request scan and cfg80211_get_bss() again for final output.
2277          */
2278         while (1) {
2279                 if (is_scanning_required) {
2280                         /* Do specific SSID scanning */
2281                         if (mwifiex_request_scan(priv, &req_ssid)) {
2282                                 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2283                                 return -EFAULT;
2284                         }
2285                 }
2286 
2287                 /* Find the BSS we want using available scan results */
2288                 if (mode == NL80211_IFTYPE_ADHOC)
2289                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2290                                                bssid, ssid, ssid_len,
2291                                                IEEE80211_BSS_TYPE_IBSS,
2292                                                IEEE80211_PRIVACY_ANY);
2293                 else
2294                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2295                                                bssid, ssid, ssid_len,
2296                                                IEEE80211_BSS_TYPE_ESS,
2297                                                IEEE80211_PRIVACY_ANY);
2298 
2299                 if (!bss) {
2300                         if (is_scanning_required) {
2301                                 mwifiex_dbg(priv->adapter, MSG,
2302                                             "assoc: requested bss not found in scan results\n");
2303                                 break;
2304                         }
2305                         is_scanning_required = 1;
2306                 } else {
2307                         mwifiex_dbg(priv->adapter, MSG,
2308                                     "info: trying to associate to '%.*s' bssid %pM\n",
2309                                     req_ssid.ssid_len, (char *)req_ssid.ssid,
2310                                     bss->bssid);
2311                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2312                         break;
2313                 }
2314         }
2315 
2316         ret = mwifiex_bss_start(priv, bss, &req_ssid);
2317         if (ret)
2318                 return ret;
2319 
2320         if (mode == NL80211_IFTYPE_ADHOC) {
2321                 /* Inform the BSS information to kernel, otherwise
2322                  * kernel will give a panic after successful assoc */
2323                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2324                         return -EFAULT;
2325         }
2326 
2327         return ret;
2328 }
2329 
2330 /*
2331  * CFG802.11 operation handler for association request.
2332  *
2333  * This function does not work when the current mode is set to Ad-Hoc, or
2334  * when there is already an association procedure going on. The given BSS
2335  * information is used to associate.
2336  */
2337 static int
2338 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2339                          struct cfg80211_connect_params *sme)
2340 {
2341         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2342         struct mwifiex_adapter *adapter = priv->adapter;
2343         int ret;
2344 
2345         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2346                 mwifiex_dbg(adapter, ERROR,
2347                             "%s: reject infra assoc request in non-STA role\n",
2348                             dev->name);
2349                 return -EINVAL;
2350         }
2351 
2352         if (priv->wdev.current_bss) {
2353                 mwifiex_dbg(adapter, ERROR,
2354                             "%s: already connected\n", dev->name);
2355                 return -EALREADY;
2356         }
2357 
2358         if (priv->scan_block)
2359                 priv->scan_block = false;
2360 
2361         if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) ||
2362             test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) {
2363                 mwifiex_dbg(adapter, ERROR,
2364                             "%s: Ignore connection.\t"
2365                             "Card removed or FW in bad state\n",
2366                             dev->name);
2367                 return -EFAULT;
2368         }
2369 
2370         mwifiex_dbg(adapter, INFO,
2371                     "info: Trying to associate to %.*s and bssid %pM\n",
2372                     (int)sme->ssid_len, (char *)sme->ssid, sme->bssid);
2373 
2374         if (!mwifiex_stop_bg_scan(priv))
2375                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2376 
2377         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2378                                      priv->bss_mode, sme->channel, sme, 0);
2379         if (!ret) {
2380                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2381                                         NULL, 0, WLAN_STATUS_SUCCESS,
2382                                         GFP_KERNEL);
2383                 mwifiex_dbg(priv->adapter, MSG,
2384                             "info: associated to bssid %pM successfully\n",
2385                             priv->cfg_bssid);
2386                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2387                     priv->adapter->auto_tdls &&
2388                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2389                         mwifiex_setup_auto_tdls_timer(priv);
2390         } else {
2391                 mwifiex_dbg(priv->adapter, ERROR,
2392                             "info: association to bssid %pM failed\n",
2393                             priv->cfg_bssid);
2394                 eth_zero_addr(priv->cfg_bssid);
2395 
2396                 if (ret > 0)
2397                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2398                                                 NULL, 0, NULL, 0, ret,
2399                                                 GFP_KERNEL);
2400                 else
2401                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2402                                                 NULL, 0, NULL, 0,
2403                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
2404                                                 GFP_KERNEL);
2405         }
2406 
2407         return 0;
2408 }
2409 
2410 /*
2411  * This function sets following parameters for ibss network.
2412  *  -  channel
2413  *  -  start band
2414  *  -  11n flag
2415  *  -  secondary channel offset
2416  */
2417 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2418                                    struct cfg80211_ibss_params *params)
2419 {
2420         struct mwifiex_adapter *adapter = priv->adapter;
2421         int index = 0, i;
2422         u8 config_bands = 0;
2423 
2424         if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2425                 if (!params->basic_rates) {
2426                         config_bands = BAND_B | BAND_G;
2427                 } else {
2428                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2429                                 /*
2430                                  * Rates below 6 Mbps in the table are CCK
2431                                  * rates; 802.11b and from 6 they are OFDM;
2432                                  * 802.11G
2433                                  */
2434                                 if (mwifiex_rates[i].bitrate == 60) {
2435                                         index = 1 << i;
2436                                         break;
2437                                 }
2438                         }
2439 
2440                         if (params->basic_rates < index) {
2441                                 config_bands = BAND_B;
2442                         } else {
2443                                 config_bands = BAND_G;
2444                                 if (params->basic_rates % index)
2445                                         config_bands |= BAND_B;
2446                         }
2447                 }
2448 
2449                 if (cfg80211_get_chandef_type(&params->chandef) !=
2450                                                 NL80211_CHAN_NO_HT)
2451                         config_bands |= BAND_G | BAND_GN;
2452         } else {
2453                 if (cfg80211_get_chandef_type(&params->chandef) ==
2454                                                 NL80211_CHAN_NO_HT)
2455                         config_bands = BAND_A;
2456                 else
2457                         config_bands = BAND_AN | BAND_A;
2458         }
2459 
2460         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2461                 adapter->config_bands = config_bands;
2462                 adapter->adhoc_start_band = config_bands;
2463 
2464                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2465                         adapter->adhoc_11n_enabled = true;
2466                 else
2467                         adapter->adhoc_11n_enabled = false;
2468         }
2469 
2470         adapter->sec_chan_offset =
2471                 mwifiex_chan_type_to_sec_chan_offset(
2472                         cfg80211_get_chandef_type(&params->chandef));
2473         priv->adhoc_channel = ieee80211_frequency_to_channel(
2474                                 params->chandef.chan->center_freq);
2475 
2476         mwifiex_dbg(adapter, INFO,
2477                     "info: set ibss band %d, chan %d, chan offset %d\n",
2478                     config_bands, priv->adhoc_channel,
2479                     adapter->sec_chan_offset);
2480 
2481         return 0;
2482 }
2483 
2484 /*
2485  * CFG802.11 operation handler to join an IBSS.
2486  *
2487  * This function does not work in any mode other than Ad-Hoc, or if
2488  * a join operation is already in progress.
2489  */
2490 static int
2491 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2492                            struct cfg80211_ibss_params *params)
2493 {
2494         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2495         int ret = 0;
2496 
2497         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2498                 mwifiex_dbg(priv->adapter, ERROR,
2499                             "request to join ibss received\t"
2500                             "when station is not in ibss mode\n");
2501                 goto done;
2502         }
2503 
2504         mwifiex_dbg(priv->adapter, MSG,
2505                     "info: trying to join to %.*s and bssid %pM\n",
2506                     params->ssid_len, (char *)params->ssid, params->bssid);
2507 
2508         mwifiex_set_ibss_params(priv, params);
2509 
2510         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2511                                      params->bssid, priv->bss_mode,
2512                                      params->chandef.chan, NULL,
2513                                      params->privacy);
2514 done:
2515         if (!ret) {
2516                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2517                                      params->chandef.chan, GFP_KERNEL);
2518                 mwifiex_dbg(priv->adapter, MSG,
2519                             "info: joined/created adhoc network with bssid\t"
2520                             "%pM successfully\n", priv->cfg_bssid);
2521         } else {
2522                 mwifiex_dbg(priv->adapter, ERROR,
2523                             "info: failed creating/joining adhoc network\n");
2524         }
2525 
2526         return ret;
2527 }
2528 
2529 /*
2530  * CFG802.11 operation handler to leave an IBSS.
2531  *
2532  * This function does not work if a leave operation is
2533  * already in progress.
2534  */
2535 static int
2536 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2537 {
2538         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2539 
2540         mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2541                     priv->cfg_bssid);
2542         if (mwifiex_deauthenticate(priv, NULL))
2543                 return -EFAULT;
2544 
2545         eth_zero_addr(priv->cfg_bssid);
2546 
2547         return 0;
2548 }
2549 
2550 /*
2551  * CFG802.11 operation handler for scan request.
2552  *
2553  * This function issues a scan request to the firmware based upon
2554  * the user specified scan configuration. On successful completion,
2555  * it also informs the results.
2556  */
2557 static int
2558 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2559                       struct cfg80211_scan_request *request)
2560 {
2561         struct net_device *dev = request->wdev->netdev;
2562         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2563         int i, offset, ret;
2564         struct ieee80211_channel *chan;
2565         struct ieee_types_header *ie;
2566         struct mwifiex_user_scan_cfg *user_scan_cfg;
2567         u8 mac_addr[ETH_ALEN];
2568 
2569         mwifiex_dbg(priv->adapter, CMD,
2570                     "info: received scan request on %s\n", dev->name);
2571 
2572         /* Block scan request if scan operation or scan cleanup when interface
2573          * is disabled is in process
2574          */
2575         if (priv->scan_request || priv->scan_aborting) {
2576                 mwifiex_dbg(priv->adapter, WARN,
2577                             "cmd: Scan already in process..\n");
2578                 return -EBUSY;
2579         }
2580 
2581         if (!priv->wdev.current_bss && priv->scan_block)
2582                 priv->scan_block = false;
2583 
2584         if (!mwifiex_stop_bg_scan(priv))
2585                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2586 
2587         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2588         if (!user_scan_cfg)
2589                 return -ENOMEM;
2590 
2591         priv->scan_request = request;
2592 
2593         if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2594                 get_random_mask_addr(mac_addr, request->mac_addr,
2595                                      request->mac_addr_mask);
2596                 ether_addr_copy(request->mac_addr, mac_addr);
2597                 ether_addr_copy(user_scan_cfg->random_mac, mac_addr);
2598         }
2599 
2600         user_scan_cfg->num_ssids = request->n_ssids;
2601         user_scan_cfg->ssid_list = request->ssids;
2602 
2603         if (request->ie && request->ie_len) {
2604                 offset = 0;
2605                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2606                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2607                                 continue;
2608                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2609                         ie = (struct ieee_types_header *)(request->ie + offset);
2610                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2611                         offset += sizeof(*ie) + ie->len;
2612 
2613                         if (offset >= request->ie_len)
2614                                 break;
2615                 }
2616         }
2617 
2618         for (i = 0; i < min_t(u32, request->n_channels,
2619                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2620                 chan = request->channels[i];
2621                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2622                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2623 
2624                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2625                         user_scan_cfg->chan_list[i].scan_type =
2626                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2627                 else
2628                         user_scan_cfg->chan_list[i].scan_type =
2629                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2630 
2631                 user_scan_cfg->chan_list[i].scan_time = 0;
2632         }
2633 
2634         if (priv->adapter->scan_chan_gap_enabled &&
2635             mwifiex_is_any_intf_active(priv))
2636                 user_scan_cfg->scan_chan_gap =
2637                                               priv->adapter->scan_chan_gap_time;
2638 
2639         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2640         kfree(user_scan_cfg);
2641         if (ret) {
2642                 mwifiex_dbg(priv->adapter, ERROR,
2643                             "scan failed: %d\n", ret);
2644                 priv->scan_aborting = false;
2645                 priv->scan_request = NULL;
2646                 return ret;
2647         }
2648 
2649         if (request->ie && request->ie_len) {
2650                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2651                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2652                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2653                                 memset(&priv->vs_ie[i].ie, 0,
2654                                        MWIFIEX_MAX_VSIE_LEN);
2655                         }
2656                 }
2657         }
2658         return 0;
2659 }
2660 
2661 /* CFG802.11 operation handler for sched_scan_start.
2662  *
2663  * This function issues a bgscan config request to the firmware based upon
2664  * the user specified sched_scan configuration. On successful completion,
2665  * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2666  * query command to get sched_scan results from firmware.
2667  */
2668 static int
2669 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2670                                   struct net_device *dev,
2671                                   struct cfg80211_sched_scan_request *request)
2672 {
2673         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2674         int i, offset;
2675         struct ieee80211_channel *chan;
2676         struct mwifiex_bg_scan_cfg *bgscan_cfg;
2677         struct ieee_types_header *ie;
2678 
2679         if (!request || (!request->n_ssids && !request->n_match_sets)) {
2680                 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2681                           __func__);
2682                 return -EINVAL;
2683         }
2684 
2685         wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2686                    request->n_ssids, request->n_match_sets);
2687         wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2688                    request->n_channels, request->scan_plans->interval,
2689                    (int)request->ie_len);
2690 
2691         bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2692         if (!bgscan_cfg)
2693                 return -ENOMEM;
2694 
2695         if (priv->scan_request || priv->scan_aborting)
2696                 bgscan_cfg->start_later = true;
2697 
2698         bgscan_cfg->num_ssids = request->n_match_sets;
2699         bgscan_cfg->ssid_list = request->match_sets;
2700 
2701         if (request->ie && request->ie_len) {
2702                 offset = 0;
2703                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2704                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2705                                 continue;
2706                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2707                         ie = (struct ieee_types_header *)(request->ie + offset);
2708                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2709                         offset += sizeof(*ie) + ie->len;
2710 
2711                         if (offset >= request->ie_len)
2712                                 break;
2713                 }
2714         }
2715 
2716         for (i = 0; i < min_t(u32, request->n_channels,
2717                               MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2718                 chan = request->channels[i];
2719                 bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2720                 bgscan_cfg->chan_list[i].radio_type = chan->band;
2721 
2722                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2723                         bgscan_cfg->chan_list[i].scan_type =
2724                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2725                 else
2726                         bgscan_cfg->chan_list[i].scan_type =
2727                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2728 
2729                 bgscan_cfg->chan_list[i].scan_time = 0;
2730         }
2731 
2732         bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2733                                           MWIFIEX_BG_SCAN_CHAN_MAX);
2734 
2735         /* Use at least 15 second for per scan cycle */
2736         bgscan_cfg->scan_interval = (request->scan_plans->interval >
2737                                      MWIFIEX_BGSCAN_INTERVAL) ?
2738                                 request->scan_plans->interval :
2739                                 MWIFIEX_BGSCAN_INTERVAL;
2740 
2741         bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2742         bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2743                                 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2744         bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2745         bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2746         bgscan_cfg->enable = true;
2747         if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2748                 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2749                 bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2750         }
2751 
2752         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2753                              HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2754                 kfree(bgscan_cfg);
2755                 return -EFAULT;
2756         }
2757 
2758         priv->sched_scanning = true;
2759 
2760         kfree(bgscan_cfg);
2761         return 0;
2762 }
2763 
2764 /* CFG802.11 operation handler for sched_scan_stop.
2765  *
2766  * This function issues a bgscan config command to disable
2767  * previous bgscan configuration in the firmware
2768  */
2769 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2770                                             struct net_device *dev, u64 reqid)
2771 {
2772         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2773 
2774         wiphy_info(wiphy, "sched scan stop!");
2775         mwifiex_stop_bg_scan(priv);
2776 
2777         return 0;
2778 }
2779 
2780 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2781                                    struct mwifiex_private *priv)
2782 {
2783         struct mwifiex_adapter *adapter = priv->adapter;
2784 
2785         vht_info->vht_supported = true;
2786 
2787         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2788         /* Update MCS support for VHT */
2789         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2790                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2791         vht_info->vht_mcs.rx_highest = 0;
2792         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2793                                 adapter->hw_dot_11ac_mcs_support >> 16);
2794         vht_info->vht_mcs.tx_highest = 0;
2795 }
2796 
2797 /*
2798  * This function sets up the CFG802.11 specific HT capability fields
2799  * with default values.
2800  *
2801  * The following default values are set -
2802  *      - HT Supported = True
2803  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2804  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2805  *      - HT Capabilities supported by firmware
2806  *      - MCS information, Rx mask = 0xff
2807  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2808  */
2809 static void
2810 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2811                       struct mwifiex_private *priv)
2812 {
2813         int rx_mcs_supp;
2814         struct ieee80211_mcs_info mcs_set;
2815         u8 *mcs = (u8 *)&mcs_set;
2816         struct mwifiex_adapter *adapter = priv->adapter;
2817 
2818         ht_info->ht_supported = true;
2819         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2820         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2821 
2822         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2823 
2824         /* Fill HT capability information */
2825         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2826                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2827         else
2828                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2829 
2830         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2831                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2832         else
2833                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2834 
2835         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2836                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2837         else
2838                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2839 
2840         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2841                 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2842         else
2843                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2844 
2845         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2846                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2847         else
2848                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2849 
2850         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2851                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2852         else
2853                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2854 
2855         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2856                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2857         else
2858                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2859 
2860         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2861                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2862         else
2863                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2864 
2865         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2866         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2867 
2868         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2869         /* Set MCS for 1x1/2x2 */
2870         memset(mcs, 0xff, rx_mcs_supp);
2871         /* Clear all the other values */
2872         memset(&mcs[rx_mcs_supp], 0,
2873                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2874         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2875             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2876                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2877                 SETHT_MCS32(mcs_set.rx_mask);
2878 
2879         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2880 
2881         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2882 }
2883 
2884 /*
2885  *  create a new virtual interface with the given name and name assign type
2886  */
2887 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2888                                               const char *name,
2889                                               unsigned char name_assign_type,
2890                                               enum nl80211_iftype type,
2891                                               struct vif_params *params)
2892 {
2893         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2894         struct mwifiex_private *priv;
2895         struct net_device *dev;
2896         void *mdev_priv;
2897         int ret;
2898 
2899         if (!adapter)
2900                 return ERR_PTR(-EFAULT);
2901 
2902         switch (type) {
2903         case NL80211_IFTYPE_UNSPECIFIED:
2904         case NL80211_IFTYPE_STATION:
2905         case NL80211_IFTYPE_ADHOC:
2906                 if (adapter->curr_iface_comb.sta_intf ==
2907                     adapter->iface_limit.sta_intf) {
2908                         mwifiex_dbg(adapter, ERROR,
2909                                     "cannot create multiple sta/adhoc ifaces\n");
2910                         return ERR_PTR(-EINVAL);
2911                 }
2912 
2913                 priv = mwifiex_get_unused_priv_by_bss_type(
2914                                                 adapter, MWIFIEX_BSS_TYPE_STA);
2915                 if (!priv) {
2916                         mwifiex_dbg(adapter, ERROR,
2917                                     "could not get free private struct\n");
2918                         return ERR_PTR(-EFAULT);
2919                 }
2920 
2921                 priv->wdev.wiphy = wiphy;
2922                 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2923 
2924                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2925                         priv->bss_mode = NL80211_IFTYPE_STATION;
2926                 else
2927                         priv->bss_mode = type;
2928 
2929                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2930                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2931                 priv->bss_priority = 0;
2932                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2933 
2934                 break;
2935         case NL80211_IFTYPE_AP:
2936                 if (adapter->curr_iface_comb.uap_intf ==
2937                     adapter->iface_limit.uap_intf) {
2938                         mwifiex_dbg(adapter, ERROR,
2939                                     "cannot create multiple AP ifaces\n");
2940                         return ERR_PTR(-EINVAL);
2941                 }
2942 
2943                 priv = mwifiex_get_unused_priv_by_bss_type(
2944                                                 adapter, MWIFIEX_BSS_TYPE_UAP);
2945                 if (!priv) {
2946                         mwifiex_dbg(adapter, ERROR,
2947                                     "could not get free private struct\n");
2948                         return ERR_PTR(-EFAULT);
2949                 }
2950 
2951                 priv->wdev.wiphy = wiphy;
2952                 priv->wdev.iftype = NL80211_IFTYPE_AP;
2953 
2954                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2955                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2956                 priv->bss_priority = 0;
2957                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2958                 priv->bss_started = 0;
2959                 priv->bss_mode = type;
2960 
2961                 break;
2962         case NL80211_IFTYPE_P2P_CLIENT:
2963                 if (adapter->curr_iface_comb.p2p_intf ==
2964                     adapter->iface_limit.p2p_intf) {
2965                         mwifiex_dbg(adapter, ERROR,
2966                                     "cannot create multiple P2P ifaces\n");
2967                         return ERR_PTR(-EINVAL);
2968                 }
2969 
2970                 priv = mwifiex_get_unused_priv_by_bss_type(
2971                                                 adapter, MWIFIEX_BSS_TYPE_P2P);
2972                 if (!priv) {
2973                         mwifiex_dbg(adapter, ERROR,
2974                                     "could not get free private struct\n");
2975                         return ERR_PTR(-EFAULT);
2976                 }
2977 
2978                 priv->wdev.wiphy = wiphy;
2979                 /* At start-up, wpa_supplicant tries to change the interface
2980                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2981                  */
2982                 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2983                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2984 
2985                 /* Setting bss_type to P2P tells firmware that this interface
2986                  * is receiving P2P peers found during find phase and doing
2987                  * action frame handshake.
2988                  */
2989                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2990 
2991                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2992                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2993                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2994                 priv->bss_started = 0;
2995 
2996                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2997                         memset(&priv->wdev, 0, sizeof(priv->wdev));
2998                         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2999                         return ERR_PTR(-EFAULT);
3000                 }
3001 
3002                 break;
3003         default:
3004                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
3005                 return ERR_PTR(-EINVAL);
3006         }
3007 
3008         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
3009                                name_assign_type, ether_setup,
3010                                IEEE80211_NUM_ACS, 1);
3011         if (!dev) {
3012                 mwifiex_dbg(adapter, ERROR,
3013                             "no memory available for netdevice\n");
3014                 ret = -ENOMEM;
3015                 goto err_alloc_netdev;
3016         }
3017 
3018         mwifiex_init_priv_params(priv, dev);
3019 
3020         priv->netdev = dev;
3021 
3022         if (!adapter->mfg_mode) {
3023                 mwifiex_set_mac_address(priv, dev, false, NULL);
3024 
3025                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
3026                                        HostCmd_ACT_GEN_SET, 0, NULL, true);
3027                 if (ret)
3028                         goto err_set_bss_mode;
3029 
3030                 ret = mwifiex_sta_init_cmd(priv, false, false);
3031                 if (ret)
3032                         goto err_sta_init;
3033         }
3034 
3035         mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
3036         if (adapter->is_hw_11ac_capable)
3037                 mwifiex_setup_vht_caps(
3038                         &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
3039 
3040         if (adapter->config_bands & BAND_A)
3041                 mwifiex_setup_ht_caps(
3042                         &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
3043 
3044         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
3045                 mwifiex_setup_vht_caps(
3046                         &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
3047 
3048         dev_net_set(dev, wiphy_net(wiphy));
3049         dev->ieee80211_ptr = &priv->wdev;
3050         dev->ieee80211_ptr->iftype = priv->bss_mode;
3051         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
3052 
3053         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
3054         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
3055         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
3056         dev->ethtool_ops = &mwifiex_ethtool_ops;
3057 
3058         mdev_priv = netdev_priv(dev);
3059         *((unsigned long *) mdev_priv) = (unsigned long) priv;
3060 
3061         SET_NETDEV_DEV(dev, adapter->dev);
3062 
3063         priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
3064                                                   WQ_HIGHPRI |
3065                                                   WQ_MEM_RECLAIM |
3066                                                   WQ_UNBOUND, 1, name);
3067         if (!priv->dfs_cac_workqueue) {
3068                 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n");
3069                 ret = -ENOMEM;
3070                 goto err_alloc_cac;
3071         }
3072 
3073         INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
3074 
3075         priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
3076                                                       WQ_HIGHPRI | WQ_UNBOUND |
3077                                                       WQ_MEM_RECLAIM, 1, name);
3078         if (!priv->dfs_chan_sw_workqueue) {
3079                 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n");
3080                 ret = -ENOMEM;
3081                 goto err_alloc_chsw;
3082         }
3083 
3084         INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
3085                           mwifiex_dfs_chan_sw_work_queue);
3086 
3087         mutex_init(&priv->async_mutex);
3088 
3089         /* Register network device */
3090         if (register_netdevice(dev)) {
3091                 mwifiex_dbg(adapter, ERROR, "cannot register network device\n");
3092                 ret = -EFAULT;
3093                 goto err_reg_netdev;
3094         }
3095 
3096         mwifiex_dbg(adapter, INFO,
3097                     "info: %s: Marvell 802.11 Adapter\n", dev->name);
3098 
3099 #ifdef CONFIG_DEBUG_FS
3100         mwifiex_dev_debugfs_init(priv);
3101 #endif
3102 
3103         switch (type) {
3104         case NL80211_IFTYPE_UNSPECIFIED:
3105         case NL80211_IFTYPE_STATION:
3106         case NL80211_IFTYPE_ADHOC:
3107                 adapter->curr_iface_comb.sta_intf++;
3108                 break;
3109         case NL80211_IFTYPE_AP:
3110                 adapter->curr_iface_comb.uap_intf++;
3111                 break;
3112         case NL80211_IFTYPE_P2P_CLIENT:
3113                 adapter->curr_iface_comb.p2p_intf++;
3114                 break;
3115         default:
3116                 /* This should be dead code; checked above */
3117                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
3118                 return ERR_PTR(-EINVAL);
3119         }
3120 
3121         return &priv->wdev;
3122 
3123 err_reg_netdev:
3124         destroy_workqueue(priv->dfs_chan_sw_workqueue);
3125         priv->dfs_chan_sw_workqueue = NULL;
3126 err_alloc_chsw:
3127         destroy_workqueue(priv->dfs_cac_workqueue);
3128         priv->dfs_cac_workqueue = NULL;
3129 err_alloc_cac:
3130         free_netdev(dev);
3131         priv->netdev = NULL;
3132 err_sta_init:
3133 err_set_bss_mode:
3134 err_alloc_netdev:
3135         memset(&priv->wdev, 0, sizeof(priv->wdev));
3136         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3137         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3138         return ERR_PTR(ret);
3139 }
3140 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
3141 
3142 /*
3143  * del_virtual_intf: remove the virtual interface determined by dev
3144  */
3145 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3146 {
3147         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3148         struct mwifiex_adapter *adapter = priv->adapter;
3149         struct sk_buff *skb, *tmp;
3150 
3151 #ifdef CONFIG_DEBUG_FS
3152         mwifiex_dev_debugfs_remove(priv);
3153 #endif
3154 
3155         if (priv->sched_scanning)
3156                 priv->sched_scanning = false;
3157 
3158         mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3159 
3160         skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) {
3161                 skb_unlink(skb, &priv->bypass_txq);
3162                 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
3163         }
3164 
3165         if (netif_carrier_ok(priv->netdev))
3166                 netif_carrier_off(priv->netdev);
3167 
3168         if (wdev->netdev->reg_state == NETREG_REGISTERED)
3169                 unregister_netdevice(wdev->netdev);
3170 
3171         if (priv->dfs_cac_workqueue) {
3172                 flush_workqueue(priv->dfs_cac_workqueue);
3173                 destroy_workqueue(priv->dfs_cac_workqueue);
3174                 priv->dfs_cac_workqueue = NULL;
3175         }
3176 
3177         if (priv->dfs_chan_sw_workqueue) {
3178                 flush_workqueue(priv->dfs_chan_sw_workqueue);
3179                 destroy_workqueue(priv->dfs_chan_sw_workqueue);
3180                 priv->dfs_chan_sw_workqueue = NULL;
3181         }
3182         /* Clear the priv in adapter */
3183         priv->netdev = NULL;
3184 
3185         switch (priv->bss_mode) {
3186         case NL80211_IFTYPE_UNSPECIFIED:
3187         case NL80211_IFTYPE_STATION:
3188         case NL80211_IFTYPE_ADHOC:
3189                 adapter->curr_iface_comb.sta_intf--;
3190                 break;
3191         case NL80211_IFTYPE_AP:
3192                 adapter->curr_iface_comb.uap_intf--;
3193                 break;
3194         case NL80211_IFTYPE_P2P_CLIENT:
3195         case NL80211_IFTYPE_P2P_GO:
3196                 adapter->curr_iface_comb.p2p_intf--;
3197                 break;
3198         default:
3199                 mwifiex_dbg(adapter, ERROR,
3200                             "del_virtual_intf: type not supported\n");
3201                 break;
3202         }
3203 
3204         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3205 
3206         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3207             GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3208                 kfree(priv->hist_data);
3209 
3210         return 0;
3211 }
3212 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3213 
3214 static bool
3215 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3216                              u8 max_byte_seq)
3217 {
3218         int j, k, valid_byte_cnt = 0;
3219         bool dont_care_byte = false;
3220 
3221         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3222                 for (k = 0; k < 8; k++) {
3223                         if (pat->mask[j] & 1 << k) {
3224                                 memcpy(byte_seq + valid_byte_cnt,
3225                                        &pat->pattern[j * 8 + k], 1);
3226                                 valid_byte_cnt++;
3227                                 if (dont_care_byte)
3228                                         return false;
3229                         } else {
3230                                 if (valid_byte_cnt)
3231                                         dont_care_byte = true;
3232                         }
3233 
3234                         /* wildcard bytes record as the offset
3235                          * before the valid byte
3236                          */
3237                         if (!valid_byte_cnt && !dont_care_byte)
3238                                 pat->pkt_offset++;
3239 
3240                         if (valid_byte_cnt > max_byte_seq)
3241                                 return false;
3242                 }
3243         }
3244 
3245         byte_seq[max_byte_seq] = valid_byte_cnt;
3246 
3247         return true;
3248 }
3249 
3250 #ifdef CONFIG_PM
3251 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3252                                            struct mwifiex_mef_entry *mef_entry)
3253 {
3254         int i, filt_num = 0, num_ipv4 = 0;
3255         struct in_device *in_dev;
3256         struct in_ifaddr *ifa;
3257         __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3258         struct mwifiex_adapter *adapter = priv->adapter;
3259 
3260         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3261         mef_entry->action = MEF_ACTION_AUTO_ARP;
3262 
3263         /* Enable ARP offload feature */
3264         memset(ips, 0, sizeof(ips));
3265         for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3266                 if (adapter->priv[i]->netdev) {
3267                         in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3268                         if (!in_dev)
3269                                 continue;
3270                         ifa = rtnl_dereference(in_dev->ifa_list);
3271                         if (!ifa || !ifa->ifa_local)
3272                                 continue;
3273                         ips[i] = ifa->ifa_local;
3274                         num_ipv4++;
3275                 }
3276         }
3277 
3278         for (i = 0; i < num_ipv4; i++) {
3279                 if (!ips[i])
3280                         continue;
3281                 mef_entry->filter[filt_num].repeat = 1;
3282                 memcpy(mef_entry->filter[filt_num].byte_seq,
3283                        (u8 *)&ips[i], sizeof(ips[i]));
3284                 mef_entry->filter[filt_num].
3285                         byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3286                         sizeof(ips[i]);
3287                 mef_entry->filter[filt_num].offset = 46;
3288                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3289                 if (filt_num) {
3290                         mef_entry->filter[filt_num].filt_action =
3291                                 TYPE_OR;
3292                 }
3293                 filt_num++;
3294         }
3295 
3296         mef_entry->filter[filt_num].repeat = 1;
3297         mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3298         mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3299         mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3300         mef_entry->filter[filt_num].offset = 20;
3301         mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3302         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3303 }
3304 
3305 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3306                                         struct mwifiex_ds_mef_cfg *mef_cfg,
3307                                         struct mwifiex_mef_entry *mef_entry,
3308                                         struct cfg80211_wowlan *wowlan)
3309 {
3310         int i, filt_num = 0, ret = 0;
3311         bool first_pat = true;
3312         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3313         static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3314         static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3315 
3316         mef_entry->mode = MEF_MODE_HOST_SLEEP;
3317         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3318 
3319         for (i = 0; i < wowlan->n_patterns; i++) {
3320                 memset(byte_seq, 0, sizeof(byte_seq));
3321                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3322                                         byte_seq,
3323                                         MWIFIEX_MEF_MAX_BYTESEQ)) {
3324                         mwifiex_dbg(priv->adapter, ERROR,
3325                                     "Pattern not supported\n");
3326                         return -EOPNOTSUPP;
3327                 }
3328 
3329                 if (!wowlan->patterns[i].pkt_offset) {
3330                         if (!(byte_seq[0] & 0x01) &&
3331                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3332                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3333                                 continue;
3334                         } else if (is_broadcast_ether_addr(byte_seq)) {
3335                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3336                                 continue;
3337                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3338                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3339                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3340                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3341                                 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3342                                 continue;
3343                         }
3344                 }
3345                 mef_entry->filter[filt_num].repeat = 1;
3346                 mef_entry->filter[filt_num].offset =
3347                         wowlan->patterns[i].pkt_offset;
3348                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3349                                 sizeof(byte_seq));
3350                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3351 
3352                 if (first_pat) {
3353                         first_pat = false;
3354                         mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3355                 } else {
3356                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
3357                 }
3358 
3359                 filt_num++;
3360         }
3361 
3362         if (wowlan->magic_pkt) {
3363                 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3364                 mef_entry->filter[filt_num].repeat = 16;
3365                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3366                                 ETH_ALEN);
3367                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3368                         ETH_ALEN;
3369                 mef_entry->filter[filt_num].offset = 28;
3370                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3371                 if (filt_num)
3372                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
3373 
3374                 filt_num++;
3375                 mef_entry->filter[filt_num].repeat = 16;
3376                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3377                                 ETH_ALEN);
3378                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3379                         ETH_ALEN;
3380                 mef_entry->filter[filt_num].offset = 56;
3381                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3382                 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3383                 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3384         }
3385         return ret;
3386 }
3387 
3388 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3389                                   struct cfg80211_wowlan *wowlan)
3390 {
3391         int ret = 0, num_entries = 1;
3392         struct mwifiex_ds_mef_cfg mef_cfg;
3393         struct mwifiex_mef_entry *mef_entry;
3394 
3395         if (wowlan->n_patterns || wowlan->magic_pkt)
3396                 num_entries++;
3397 
3398         mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3399         if (!mef_entry)
3400                 return -ENOMEM;
3401 
3402         memset(&mef_cfg, 0, sizeof(mef_cfg));
3403         mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3404                 MWIFIEX_CRITERIA_UNICAST;
3405         mef_cfg.num_entries = num_entries;
3406         mef_cfg.mef_entry = mef_entry;
3407 
3408         mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3409 
3410         if (wowlan->n_patterns || wowlan->magic_pkt) {
3411                 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3412                                                    &mef_entry[1], wowlan);
3413                 if (ret)
3414                         goto err;
3415         }
3416 
3417         if (!mef_cfg.criteria)
3418                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3419                         MWIFIEX_CRITERIA_UNICAST |
3420                         MWIFIEX_CRITERIA_MULTICAST;
3421 
3422         ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3423                         HostCmd_ACT_GEN_SET, 0,
3424                         &mef_cfg, true);
3425 
3426 err:
3427         kfree(mef_entry);
3428         return ret;
3429 }
3430 
3431 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3432                                     struct cfg80211_wowlan *wowlan)
3433 {
3434         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3435         struct mwifiex_ds_hs_cfg hs_cfg;
3436         int i, ret = 0, retry_num = 10;
3437         struct mwifiex_private *priv;
3438         struct mwifiex_private *sta_priv =
3439                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3440 
3441         sta_priv->scan_aborting = true;
3442         for (i = 0; i < adapter->priv_num; i++) {
3443                 priv = adapter->priv[i];
3444                 mwifiex_abort_cac(priv);
3445         }
3446 
3447         mwifiex_cancel_all_pending_cmd(adapter);
3448 
3449         for (i = 0; i < adapter->priv_num; i++) {
3450                 priv = adapter->priv[i];
3451                 if (priv && priv->netdev)
3452                         netif_device_detach(priv->netdev);
3453         }
3454 
3455         for (i = 0; i < retry_num; i++) {
3456                 if (!mwifiex_wmm_lists_empty(adapter) ||
3457                     !mwifiex_bypass_txlist_empty(adapter) ||
3458                     !skb_queue_empty(&adapter->tx_data_q))
3459                         usleep_range(10000, 15000);
3460                 else
3461                         break;
3462         }
3463 
3464         if (!wowlan) {
3465                 mwifiex_dbg(adapter, ERROR,
3466                             "None of the WOWLAN triggers enabled\n");
3467                 ret = 0;
3468                 goto done;
3469         }
3470 
3471         if (!sta_priv->media_connected && !wowlan->nd_config) {
3472                 mwifiex_dbg(adapter, ERROR,
3473                             "Can not configure WOWLAN in disconnected state\n");
3474                 ret = 0;
3475                 goto done;
3476         }
3477 
3478         ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3479         if (ret) {
3480                 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3481                 goto done;
3482         }
3483 
3484         memset(&hs_cfg, 0, sizeof(hs_cfg));
3485         hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3486 
3487         if (wowlan->nd_config) {
3488                 mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3489                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3490                 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3491                                                   wowlan->nd_config);
3492         }
3493 
3494         if (wowlan->disconnect) {
3495                 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3496                 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3497         }
3498 
3499         hs_cfg.is_invoke_hostcmd = false;
3500         hs_cfg.gpio = adapter->hs_cfg.gpio;
3501         hs_cfg.gap = adapter->hs_cfg.gap;
3502         ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3503                                     MWIFIEX_SYNC_CMD, &hs_cfg);
3504         if (ret)
3505                 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3506 
3507 done:
3508         sta_priv->scan_aborting = false;
3509         return ret;
3510 }
3511 
3512 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3513 {
3514         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3515         struct mwifiex_private *priv;
3516         struct mwifiex_ds_wakeup_reason wakeup_reason;
3517         struct cfg80211_wowlan_wakeup wakeup_report;
3518         int i;
3519         bool report_wakeup_reason = true;
3520 
3521         for (i = 0; i < adapter->priv_num; i++) {
3522                 priv = adapter->priv[i];
3523                 if (priv && priv->netdev)
3524                         netif_device_attach(priv->netdev);
3525         }
3526 
3527         if (!wiphy->wowlan_config)
3528                 goto done;
3529 
3530         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3531         mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3532                                   &wakeup_reason);
3533         memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3534 
3535         wakeup_report.pattern_idx = -1;
3536 
3537         switch (wakeup_reason.hs_wakeup_reason) {
3538         case NO_HSWAKEUP_REASON:
3539                 break;
3540         case BCAST_DATA_MATCHED:
3541                 break;
3542         case MCAST_DATA_MATCHED:
3543                 break;
3544         case UCAST_DATA_MATCHED:
3545                 break;
3546         case MASKTABLE_EVENT_MATCHED:
3547                 break;
3548         case NON_MASKABLE_EVENT_MATCHED:
3549                 if (wiphy->wowlan_config->disconnect)
3550                         wakeup_report.disconnect = true;
3551                 if (wiphy->wowlan_config->nd_config)
3552                         wakeup_report.net_detect = adapter->nd_info;
3553                 break;
3554         case NON_MASKABLE_CONDITION_MATCHED:
3555                 break;
3556         case MAGIC_PATTERN_MATCHED:
3557                 if (wiphy->wowlan_config->magic_pkt)
3558                         wakeup_report.magic_pkt = true;
3559                 if (wiphy->wowlan_config->n_patterns)
3560                         wakeup_report.pattern_idx = 1;
3561                 break;
3562         case GTK_REKEY_FAILURE:
3563                 if (wiphy->wowlan_config->gtk_rekey_failure)
3564                         wakeup_report.gtk_rekey_failure = true;
3565                 break;
3566         default:
3567                 report_wakeup_reason = false;
3568                 break;
3569         }
3570 
3571         if (report_wakeup_reason)
3572                 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3573                                               GFP_KERNEL);
3574 
3575 done:
3576         if (adapter->nd_info) {
3577                 for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3578                         kfree(adapter->nd_info->matches[i]);
3579                 kfree(adapter->nd_info);
3580                 adapter->nd_info = NULL;
3581         }
3582 
3583         return 0;
3584 }
3585 
3586 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3587                                        bool enabled)
3588 {
3589         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3590 
3591         device_set_wakeup_enable(adapter->dev, enabled);
3592 }
3593 
3594 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
3595                                   struct cfg80211_gtk_rekey_data *data)
3596 {
3597         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3598 
3599         if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
3600                 return -EOPNOTSUPP;
3601 
3602         return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
3603                                 HostCmd_ACT_GEN_SET, 0, data, true);
3604 }
3605 
3606 #endif
3607 
3608 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3609 {
3610         static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3611         static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3612         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3613 
3614         if ((byte_seq[0] & 0x01) &&
3615             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3616                 return PACKET_TYPE_UNICAST;
3617         else if (!memcmp(byte_seq, bc_mac, 4))
3618                 return PACKET_TYPE_BROADCAST;
3619         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3620                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3621                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3622                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3623                 return PACKET_TYPE_MULTICAST;
3624 
3625         return 0;
3626 }
3627 
3628 static int
3629 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3630                                 struct cfg80211_coalesce_rules *crule,
3631                                 struct mwifiex_coalesce_rule *mrule)
3632 {
3633         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3634         struct filt_field_param *param;
3635         int i;
3636 
3637         mrule->max_coalescing_delay = crule->delay;
3638 
3639         param = mrule->params;
3640 
3641         for (i = 0; i < crule->n_patterns; i++) {
3642                 memset(byte_seq, 0, sizeof(byte_seq));
3643                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3644                                                   byte_seq,
3645                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3646                         mwifiex_dbg(priv->adapter, ERROR,
3647                                     "Pattern not supported\n");
3648                         return -EOPNOTSUPP;
3649                 }
3650 
3651                 if (!crule->patterns[i].pkt_offset) {
3652                         u8 pkt_type;
3653 
3654                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3655                         if (pkt_type && mrule->pkt_type) {
3656                                 mwifiex_dbg(priv->adapter, ERROR,
3657                                             "Multiple packet types not allowed\n");
3658                                 return -EOPNOTSUPP;
3659                         } else if (pkt_type) {
3660                                 mrule->pkt_type = pkt_type;
3661                                 continue;
3662                         }
3663                 }
3664 
3665                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3666                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3667                 else
3668                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
3669 
3670                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3671                 memcpy(param->operand_byte_stream, byte_seq,
3672                        param->operand_len);
3673                 param->offset = crule->patterns[i].pkt_offset;
3674                 param++;
3675 
3676                 mrule->num_of_fields++;
3677         }
3678 
3679         if (!mrule->pkt_type) {
3680                 mwifiex_dbg(priv->adapter, ERROR,
3681                             "Packet type can not be determined\n");
3682                 return -EOPNOTSUPP;
3683         }
3684 
3685         return 0;
3686 }
3687 
3688 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3689                                          struct cfg80211_coalesce *coalesce)
3690 {
3691         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3692         int i, ret;
3693         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3694         struct mwifiex_private *priv =
3695                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3696 
3697         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3698         if (!coalesce) {
3699                 mwifiex_dbg(adapter, WARN,
3700                             "Disable coalesce and reset all previous rules\n");
3701                 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3702                                         HostCmd_ACT_GEN_SET, 0,
3703                                         &coalesce_cfg, true);
3704         }
3705 
3706         coalesce_cfg.num_of_rules = coalesce->n_rules;
3707         for (i = 0; i < coalesce->n_rules; i++) {
3708                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3709                                                       &coalesce_cfg.rule[i]);
3710                 if (ret) {
3711                         mwifiex_dbg(adapter, ERROR,
3712                                     "Recheck the patterns provided for rule %d\n",
3713                                 i + 1);
3714                         return ret;
3715                 }
3716         }
3717 
3718         return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3719                                 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3720 }
3721 
3722 /* cfg80211 ops handler for tdls_mgmt.
3723  * Function prepares TDLS action frame packets and forwards them to FW
3724  */
3725 static int
3726 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3727                            const u8 *peer, u8 action_code, u8 dialog_token,
3728                            u16 status_code, u32 peer_capability,
3729                            bool initiator, const u8 *extra_ies,
3730                            size_t extra_ies_len)
3731 {
3732         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3733         int ret;
3734 
3735         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3736                 return -ENOTSUPP;
3737 
3738         /* make sure we are in station mode and connected */
3739         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3740                 return -ENOTSUPP;
3741 
3742         switch (action_code) {
3743         case WLAN_TDLS_SETUP_REQUEST:
3744                 mwifiex_dbg(priv->adapter, MSG,
3745                             "Send TDLS Setup Request to %pM status_code=%d\n",
3746                             peer, status_code);
3747                 mwifiex_add_auto_tdls_peer(priv, peer);
3748                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3749                                                    dialog_token, status_code,
3750                                                    extra_ies, extra_ies_len);
3751                 break;
3752         case WLAN_TDLS_SETUP_RESPONSE:
3753                 mwifiex_add_auto_tdls_peer(priv, peer);
3754                 mwifiex_dbg(priv->adapter, MSG,
3755                             "Send TDLS Setup Response to %pM status_code=%d\n",
3756                             peer, status_code);
3757                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3758                                                    dialog_token, status_code,
3759                                                    extra_ies, extra_ies_len);
3760                 break;
3761         case WLAN_TDLS_SETUP_CONFIRM:
3762                 mwifiex_dbg(priv->adapter, MSG,
3763                             "Send TDLS Confirm to %pM status_code=%d\n", peer,
3764                             status_code);
3765                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3766                                                    dialog_token, status_code,
3767                                                    extra_ies, extra_ies_len);
3768                 break;
3769         case WLAN_TDLS_TEARDOWN:
3770                 mwifiex_dbg(priv->adapter, MSG,
3771                             "Send TDLS Tear down to %pM\n", peer);
3772                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3773                                                    dialog_token, status_code,
3774                                                    extra_ies, extra_ies_len);
3775                 break;
3776         case WLAN_TDLS_DISCOVERY_REQUEST:
3777                 mwifiex_dbg(priv->adapter, MSG,
3778                             "Send TDLS Discovery Request to %pM\n", peer);
3779                 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3780                                                    dialog_token, status_code,
3781                                                    extra_ies, extra_ies_len);
3782                 break;
3783         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3784                 mwifiex_dbg(priv->adapter, MSG,
3785                             "Send TDLS Discovery Response to %pM\n", peer);
3786                 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3787                                                    dialog_token, status_code,
3788                                                    extra_ies, extra_ies_len);
3789                 break;
3790         default:
3791                 mwifiex_dbg(priv->adapter, ERROR,
3792                             "Unknown TDLS mgmt/action frame %pM\n", peer);
3793                 ret = -EINVAL;
3794                 break;
3795         }
3796 
3797         return ret;
3798 }
3799 
3800 static int
3801 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3802                            const u8 *peer, enum nl80211_tdls_operation action)
3803 {
3804         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3805 
3806         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3807             !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3808                 return -ENOTSUPP;
3809 
3810         /* make sure we are in station mode and connected */
3811         if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3812                 return -ENOTSUPP;
3813 
3814         mwifiex_dbg(priv->adapter, MSG,
3815                     "TDLS peer=%pM, oper=%d\n", peer, action);
3816 
3817         switch (action) {
3818         case NL80211_TDLS_ENABLE_LINK:
3819                 action = MWIFIEX_TDLS_ENABLE_LINK;
3820                 break;
3821         case NL80211_TDLS_DISABLE_LINK:
3822                 action = MWIFIEX_TDLS_DISABLE_LINK;
3823                 break;
3824         case NL80211_TDLS_TEARDOWN:
3825                 /* shouldn't happen!*/
3826                 mwifiex_dbg(priv->adapter, ERROR,
3827                             "tdls_oper: teardown from driver not supported\n");
3828                 return -EINVAL;
3829         case NL80211_TDLS_SETUP:
3830                 /* shouldn't happen!*/
3831                 mwifiex_dbg(priv->adapter, ERROR,
3832                             "tdls_oper: setup from driver not supported\n");
3833                 return -EINVAL;
3834         case NL80211_TDLS_DISCOVERY_REQ:
3835                 /* shouldn't happen!*/
3836                 mwifiex_dbg(priv->adapter, ERROR,
3837                             "tdls_oper: discovery from driver not supported\n");
3838                 return -EINVAL;
3839         default:
3840                 mwifiex_dbg(priv->adapter, ERROR,
3841                             "tdls_oper: operation not supported\n");
3842                 return -ENOTSUPP;
3843         }
3844 
3845         return mwifiex_tdls_oper(priv, peer, action);
3846 }
3847 
3848 static int
3849 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3850                                   const u8 *addr, u8 oper_class,
3851                                   struct cfg80211_chan_def *chandef)
3852 {
3853         struct mwifiex_sta_node *sta_ptr;
3854         u16 chan;
3855         u8 second_chan_offset, band;
3856         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3857 
3858         spin_lock_bh(&priv->sta_list_spinlock);
3859         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3860         if (!sta_ptr) {
3861                 spin_unlock_bh(&priv->sta_list_spinlock);
3862                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3863                           __func__, addr);
3864                 return -ENOENT;
3865         }
3866 
3867         if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3868               WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3869                 spin_unlock_bh(&priv->sta_list_spinlock);
3870                 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3871                 return -ENOENT;
3872         }
3873 
3874         if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3875             sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3876                 spin_unlock_bh(&priv->sta_list_spinlock);
3877                 wiphy_err(wiphy, "channel switch is running, abort request\n");
3878                 return -EALREADY;
3879         }
3880         spin_unlock_bh(&priv->sta_list_spinlock);
3881 
3882         chan = chandef->chan->hw_value;
3883         second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3884         band = chandef->chan->band;
3885         mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3886 
3887         return 0;
3888 }
3889 
3890 static void
3891 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3892                                          struct net_device *dev,
3893                                          const u8 *addr)
3894 {
3895         struct mwifiex_sta_node *sta_ptr;
3896         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3897 
3898         spin_lock_bh(&priv->sta_list_spinlock);
3899         sta_ptr = mwifiex_get_sta_entry(priv, addr);
3900         if (!sta_ptr) {
3901                 spin_unlock_bh(&priv->sta_list_spinlock);
3902                 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3903                           __func__, addr);
3904         } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3905                      sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3906                      sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3907                 spin_unlock_bh(&priv->sta_list_spinlock);
3908                 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3909                           addr);
3910         } else {
3911                 spin_unlock_bh(&priv->sta_list_spinlock);
3912                 mwifiex_stop_tdls_cs(priv, addr);
3913         }
3914 }
3915 
3916 static int
3917 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3918                              const u8 *mac, struct station_parameters *params)
3919 {
3920         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3921 
3922         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3923                 return -ENOTSUPP;
3924 
3925         /* make sure we are in station mode and connected */
3926         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3927                 return -ENOTSUPP;
3928 
3929         return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3930 }
3931 
3932 static int
3933 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3934                                 struct cfg80211_csa_settings *params)
3935 {
3936         struct ieee_types_header *chsw_ie;
3937         struct ieee80211_channel_sw_ie *channel_sw;
3938         int chsw_msec;
3939         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3940 
3941         if (priv->adapter->scan_processing) {
3942                 mwifiex_dbg(priv->adapter, ERROR,
3943                             "radar detection: scan in process...\n");
3944                 return -EBUSY;
3945         }
3946 
3947         if (priv->wdev.cac_started)
3948                 return -EBUSY;
3949 
3950         if (cfg80211_chandef_identical(&params->chandef,
3951                                        &priv->dfs_chandef))
3952                 return -EINVAL;
3953 
3954         chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3955                                            params->beacon_csa.tail,
3956                                            params->beacon_csa.tail_len);
3957         if (!chsw_ie) {
3958                 mwifiex_dbg(priv->adapter, ERROR,
3959                             "Could not parse channel switch announcement IE\n");
3960                 return -EINVAL;
3961         }
3962 
3963         channel_sw = (void *)(chsw_ie + 1);
3964         if (channel_sw->mode) {
3965                 if (netif_carrier_ok(priv->netdev))
3966                         netif_carrier_off(priv->netdev);
3967                 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3968         }
3969 
3970         if (mwifiex_del_mgmt_ies(priv))
3971                 mwifiex_dbg(priv->adapter, ERROR,
3972                             "Failed to delete mgmt IEs!\n");
3973 
3974         if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3975                 mwifiex_dbg(priv->adapter, ERROR,
3976                             "%s: setting mgmt ies failed\n", __func__);
3977                 return -EFAULT;
3978         }
3979 
3980         memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
3981         memcpy(&priv->beacon_after, &params->beacon_after,
3982                sizeof(priv->beacon_after));
3983 
3984         chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3985         queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3986                            msecs_to_jiffies(chsw_msec));
3987         return 0;
3988 }
3989 
3990 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
3991                                         struct wireless_dev *wdev,
3992                                         struct cfg80211_chan_def *chandef)
3993 {
3994         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3995         struct mwifiex_bssdescriptor *curr_bss;
3996         struct ieee80211_channel *chan;
3997         enum nl80211_channel_type chan_type;
3998         enum nl80211_band band;
3999         int freq;
4000         int ret = -ENODATA;
4001 
4002         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
4003             cfg80211_chandef_valid(&priv->bss_chandef)) {
4004                 *chandef = priv->bss_chandef;
4005                 ret = 0;
4006         } else if (priv->media_connected) {
4007                 curr_bss = &priv->curr_bss_params.bss_descriptor;
4008                 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
4009                 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
4010                 chan = ieee80211_get_channel(wiphy, freq);
4011 
4012                 if (priv->ht_param_present) {
4013                         chan_type = mwifiex_get_chan_type(priv);
4014                         cfg80211_chandef_create(chandef, chan, chan_type);
4015                 } else {
4016                         cfg80211_chandef_create(chandef, chan,
4017                                                 NL80211_CHAN_NO_HT);
4018                 }
4019                 ret = 0;
4020         }
4021 
4022         return ret;
4023 }
4024 
4025 #ifdef CONFIG_NL80211_TESTMODE
4026 
4027 enum mwifiex_tm_attr {
4028         __MWIFIEX_TM_ATTR_INVALID       = 0,
4029         MWIFIEX_TM_ATTR_CMD             = 1,
4030         MWIFIEX_TM_ATTR_DATA            = 2,
4031 
4032         /* keep last */
4033         __MWIFIEX_TM_ATTR_AFTER_LAST,
4034         MWIFIEX_TM_ATTR_MAX             = __MWIFIEX_TM_ATTR_AFTER_LAST - 1,
4035 };
4036 
4037 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = {
4038         [MWIFIEX_TM_ATTR_CMD]           = { .type = NLA_U32 },
4039         [MWIFIEX_TM_ATTR_DATA]          = { .type = NLA_BINARY,
4040                                             .len = MWIFIEX_SIZE_OF_CMD_BUFFER },
4041 };
4042 
4043 enum mwifiex_tm_command {
4044         MWIFIEX_TM_CMD_HOSTCMD  = 0,
4045 };
4046 
4047 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
4048                           void *data, int len)
4049 {
4050         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4051         struct mwifiex_ds_misc_cmd *hostcmd;
4052         struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1];
4053         struct sk_buff *skb;
4054         int err;
4055 
4056         if (!priv)
4057                 return -EINVAL;
4058 
4059         err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len,
4060                                    mwifiex_tm_policy, NULL);
4061         if (err)
4062                 return err;
4063 
4064         if (!tb[MWIFIEX_TM_ATTR_CMD])
4065                 return -EINVAL;
4066 
4067         switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) {
4068         case MWIFIEX_TM_CMD_HOSTCMD:
4069                 if (!tb[MWIFIEX_TM_ATTR_DATA])
4070                         return -EINVAL;
4071 
4072                 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL);
4073                 if (!hostcmd)
4074                         return -ENOMEM;
4075 
4076                 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]);
4077                 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]),
4078                        hostcmd->len);
4079 
4080                 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) {
4081                         dev_err(priv->adapter->dev, "Failed to process hostcmd\n");
4082                         kfree(hostcmd);
4083                         return -EFAULT;
4084                 }
4085 
4086                 /* process hostcmd response*/
4087                 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len);
4088                 if (!skb) {
4089                         kfree(hostcmd);
4090                         return -ENOMEM;
4091                 }
4092                 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA,
4093                               hostcmd->len, hostcmd->cmd);
4094                 if (err) {
4095                         kfree(hostcmd);
4096                         kfree_skb(skb);
4097                         return -EMSGSIZE;
4098                 }
4099 
4100                 err = cfg80211_testmode_reply(skb);
4101                 kfree(hostcmd);
4102                 return err;
4103         default:
4104                 return -EOPNOTSUPP;
4105         }
4106 }
4107 #endif
4108 
4109 static int
4110 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
4111                                        struct net_device *dev,
4112                                        struct cfg80211_chan_def *chandef,
4113                                        u32 cac_time_ms)
4114 {
4115         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4116         struct mwifiex_radar_params radar_params;
4117 
4118         if (priv->adapter->scan_processing) {
4119                 mwifiex_dbg(priv->adapter, ERROR,
4120                             "radar detection: scan already in process...\n");
4121                 return -EBUSY;
4122         }
4123 
4124         if (!mwifiex_is_11h_active(priv)) {
4125                 mwifiex_dbg(priv->adapter, INFO,
4126                             "Enable 11h extensions in FW\n");
4127                 if (mwifiex_11h_activate(priv, true)) {
4128                         mwifiex_dbg(priv->adapter, ERROR,
4129                                     "Failed to activate 11h extensions!!");
4130                         return -1;
4131                 }
4132                 priv->state_11h.is_11h_active = true;
4133         }
4134 
4135         memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
4136         radar_params.chandef = chandef;
4137         radar_params.cac_time_ms = cac_time_ms;
4138 
4139         memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
4140 
4141         if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
4142                              HostCmd_ACT_GEN_SET, 0, &radar_params, true))
4143                 return -1;
4144 
4145         queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
4146                            msecs_to_jiffies(cac_time_ms));
4147         return 0;
4148 }
4149 
4150 static int
4151 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
4152                                 const u8 *mac,
4153                                 struct station_parameters *params)
4154 {
4155         int ret;
4156         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4157 
4158         /* we support change_station handler only for TDLS peers*/
4159         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4160                 return -ENOTSUPP;
4161 
4162         /* make sure we are in station mode and connected */
4163         if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
4164                 return -ENOTSUPP;
4165 
4166         priv->sta_params = params;
4167 
4168         ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
4169         priv->sta_params = NULL;
4170 
4171         return ret;
4172 }
4173 
4174 /* station cfg80211 operations */
4175 static struct cfg80211_ops mwifiex_cfg80211_ops = {
4176         .add_virtual_intf = mwifiex_add_virtual_intf,
4177         .del_virtual_intf = mwifiex_del_virtual_intf,
4178         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
4179         .scan = mwifiex_cfg80211_scan,
4180         .connect = mwifiex_cfg80211_connect,
4181         .disconnect = mwifiex_cfg80211_disconnect,
4182         .get_station = mwifiex_cfg80211_get_station,
4183         .dump_station = mwifiex_cfg80211_dump_station,
4184         .dump_survey = mwifiex_cfg80211_dump_survey,
4185         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
4186         .join_ibss = mwifiex_cfg80211_join_ibss,
4187         .leave_ibss = mwifiex_cfg80211_leave_ibss,
4188         .add_key = mwifiex_cfg80211_add_key,
4189         .del_key = mwifiex_cfg80211_del_key,
4190         .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key,
4191         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
4192         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
4193         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
4194         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
4195         .set_default_key = mwifiex_cfg80211_set_default_key,
4196         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
4197         .set_tx_power = mwifiex_cfg80211_set_tx_power,
4198         .get_tx_power = mwifiex_cfg80211_get_tx_power,
4199         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
4200         .start_ap = mwifiex_cfg80211_start_ap,
4201         .stop_ap = mwifiex_cfg80211_stop_ap,
4202         .change_beacon = mwifiex_cfg80211_change_beacon,
4203         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
4204         .set_antenna = mwifiex_cfg80211_set_antenna,
4205         .get_antenna = mwifiex_cfg80211_get_antenna,
4206         .del_station = mwifiex_cfg80211_del_station,
4207         .sched_scan_start = mwifiex_cfg80211_sched_scan_start,
4208         .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
4209 #ifdef CONFIG_PM
4210         .suspend = mwifiex_cfg80211_suspend,
4211         .resume = mwifiex_cfg80211_resume,
4212         .set_wakeup = mwifiex_cfg80211_set_wakeup,
4213         .set_rekey_data = mwifiex_set_rekey_data,
4214 #endif
4215         .set_coalesce = mwifiex_cfg80211_set_coalesce,
4216         .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
4217         .tdls_oper = mwifiex_cfg80211_tdls_oper,
4218         .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
4219         .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
4220         .add_station = mwifiex_cfg80211_add_station,
4221         .change_station = mwifiex_cfg80211_change_station,
4222         CFG80211_TESTMODE_CMD(mwifiex_tm_cmd)
4223         .get_channel = mwifiex_cfg80211_get_channel,
4224         .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
4225         .channel_switch = mwifiex_cfg80211_channel_switch,
4226 };
4227 
4228 #ifdef CONFIG_PM
4229 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
4230         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4231                 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
4232                 WIPHY_WOWLAN_GTK_REKEY_FAILURE,
4233         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4234         .pattern_min_len = 1,
4235         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4236         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4237         .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4238 };
4239 
4240 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = {
4241         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4242                  WIPHY_WOWLAN_NET_DETECT,
4243         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4244         .pattern_min_len = 1,
4245         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4246         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4247         .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4248 };
4249 #endif
4250 
4251 static bool mwifiex_is_valid_alpha2(const char *alpha2)
4252 {
4253         if (!alpha2 || strlen(alpha2) != 2)
4254                 return false;
4255 
4256         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
4257                 return true;
4258 
4259         return false;
4260 }
4261 
4262 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
4263         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
4264         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
4265         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
4266         .pattern_min_len = 1,
4267         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4268         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4269 };
4270 
4271 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
4272 {
4273         u32 n_channels_bg, n_channels_a = 0;
4274 
4275         n_channels_bg = mwifiex_band_2ghz.n_channels;
4276 
4277         if (adapter->config_bands & BAND_A)
4278                 n_channels_a = mwifiex_band_5ghz.n_channels;
4279 
4280         /* allocate twice the number total channels, since the driver issues an
4281          * additional active scan request for hidden SSIDs on passive channels.
4282          */
4283         adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a);
4284         adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats),
4285                                                  adapter->num_in_chan_stats));
4286 
4287         if (!adapter->chan_stats)
4288                 return -ENOMEM;
4289 
4290         return 0;
4291 }
4292 
4293 /*
4294  * This function registers the device with CFG802.11 subsystem.
4295  *
4296  * The function creates the wireless device/wiphy, populates it with
4297  * default parameters and handler function pointers, and finally
4298  * registers the device.
4299  */
4300 
4301 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
4302 {
4303         int ret;
4304         void *wdev_priv;
4305         struct wiphy *wiphy;
4306         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
4307         u8 *country_code;
4308         u32 thr, retry;
4309 
4310         /* create a new wiphy for use with cfg80211 */
4311         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
4312                           sizeof(struct mwifiex_adapter *));
4313         if (!wiphy) {
4314                 mwifiex_dbg(adapter, ERROR,
4315                             "%s: creating new wiphy\n", __func__);
4316                 return -ENOMEM;
4317         }
4318         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4319         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4320         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4321         wiphy->max_remain_on_channel_duration = 5000;
4322         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4323                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
4324                                  BIT(NL80211_IFTYPE_P2P_GO) |
4325                                  BIT(NL80211_IFTYPE_AP);
4326 
4327         if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4328                 wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
4329 
4330         wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
4331         if (adapter->config_bands & BAND_A)
4332                 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
4333         else
4334                 wiphy->bands[NL80211_BAND_5GHZ] = NULL;
4335 
4336         if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4337                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
4338         else if (adapter->is_hw_11ac_capable)
4339                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4340         else
4341                 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4342         wiphy->n_iface_combinations = 1;
4343 
4344         /* Initialize cipher suits */
4345         wiphy->cipher_suites = mwifiex_cipher_suites;
4346         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4347 
4348         if (adapter->regd) {
4349                 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
4350                                            REGULATORY_DISABLE_BEACON_HINTS |
4351                                            REGULATORY_COUNTRY_IE_IGNORE;
4352                 wiphy_apply_custom_regulatory(wiphy, adapter->regd);
4353         }
4354 
4355         ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4356         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4357         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
4358                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4359                         WIPHY_FLAG_AP_UAPSD |
4360                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4361                         WIPHY_FLAG_HAS_CHANNEL_SWITCH |
4362                         WIPHY_FLAG_PS_ON_BY_DEFAULT;
4363 
4364         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4365                 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4366                                 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
4367 
4368 #ifdef CONFIG_PM
4369         if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
4370                 wiphy->wowlan = &mwifiex_wowlan_support;
4371         else
4372                 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk;
4373 #endif
4374 
4375         wiphy->coalesce = &mwifiex_coalesce_support;
4376 
4377         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4378                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
4379                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4380 
4381         wiphy->max_sched_scan_reqs = 1;
4382         wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4383         wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4384         wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
4385 
4386         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
4387         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4388 
4389         wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER |
4390                            NL80211_FEATURE_LOW_PRIORITY_SCAN |
4391                            NL80211_FEATURE_NEED_OBSS_SCAN;
4392 
4393         if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4394                 wiphy->features |= NL80211_FEATURE_HT_IBSS;
4395 
4396         if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info))
4397                 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
4398                                    NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
4399                                    NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
4400 
4401         if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4402                 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
4403 
4404         if (adapter->fw_api_ver == MWIFIEX_FW_V15)
4405                 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
4406 
4407         /* Reserve space for mwifiex specific private data for BSS */
4408         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4409 
4410         wiphy->reg_notifier = mwifiex_reg_notifier;
4411 
4412         /* Set struct mwifiex_adapter pointer in wiphy_priv */
4413         wdev_priv = wiphy_priv(wiphy);
4414         *(unsigned long *)wdev_priv = (unsigned long)adapter;
4415 
4416         set_wiphy_dev(wiphy, priv->adapter->dev);
4417 
4418         ret = wiphy_register(wiphy);
4419         if (ret < 0) {
4420                 mwifiex_dbg(adapter, ERROR,
4421                             "%s: wiphy_register failed: %d\n", __func__, ret);
4422                 wiphy_free(wiphy);
4423                 return ret;
4424         }
4425 
4426         if (!adapter->regd) {
4427                 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4428                         mwifiex_dbg(adapter, INFO,
4429                                     "driver hint alpha2: %2.2s\n", reg_alpha2);
4430                         regulatory_hint(wiphy, reg_alpha2);
4431                 } else {
4432                         if (adapter->region_code == 0x00) {
4433                                 mwifiex_dbg(adapter, WARN,
4434                                             "Ignore world regulatory domain\n");
4435                         } else {
4436                                 wiphy->regulatory_flags |=
4437                                         REGULATORY_DISABLE_BEACON_HINTS |
4438                                         REGULATORY_COUNTRY_IE_IGNORE;
4439                                 country_code =
4440                                         mwifiex_11d_code_2_region(
4441                                                 adapter->region_code);
4442                                 if (country_code &&
4443                                     regulatory_hint(wiphy, country_code))
4444                                         mwifiex_dbg(priv->adapter, ERROR,
4445                                                     "regulatory_hint() failed\n");
4446                         }
4447                 }
4448         }
4449 
4450         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4451                          HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4452         wiphy->frag_threshold = thr;
4453         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4454                          HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4455         wiphy->rts_threshold = thr;
4456         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4457                          HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4458         wiphy->retry_short = (u8) retry;
4459         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4460                          HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4461         wiphy->retry_long = (u8) retry;
4462 
4463         adapter->wiphy = wiphy;
4464         return ret;
4465 }

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