1 /* 2 * Copyright (c) 2012-2012 Quantenna Communications, Inc. 3 * All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License 7 * as published by the Free Software Foundation; either version 2 8 * of the License, or (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 */ 16 17 #include <linux/kernel.h> 18 #include <linux/etherdevice.h> 19 #include <linux/vmalloc.h> 20 #include <linux/ieee80211.h> 21 #include <net/cfg80211.h> 22 #include <net/netlink.h> 23 24 #include "cfg80211.h" 25 #include "commands.h" 26 #include "core.h" 27 #include "util.h" 28 #include "bus.h" 29 30 /* Supported rates to be advertised to the cfg80211 */ 31 static struct ieee80211_rate qtnf_rates_2g[] = { 32 {.bitrate = 10, .hw_value = 2, }, 33 {.bitrate = 20, .hw_value = 4, }, 34 {.bitrate = 55, .hw_value = 11, }, 35 {.bitrate = 110, .hw_value = 22, }, 36 {.bitrate = 60, .hw_value = 12, }, 37 {.bitrate = 90, .hw_value = 18, }, 38 {.bitrate = 120, .hw_value = 24, }, 39 {.bitrate = 180, .hw_value = 36, }, 40 {.bitrate = 240, .hw_value = 48, }, 41 {.bitrate = 360, .hw_value = 72, }, 42 {.bitrate = 480, .hw_value = 96, }, 43 {.bitrate = 540, .hw_value = 108, }, 44 }; 45 46 /* Supported rates to be advertised to the cfg80211 */ 47 static struct ieee80211_rate qtnf_rates_5g[] = { 48 {.bitrate = 60, .hw_value = 12, }, 49 {.bitrate = 90, .hw_value = 18, }, 50 {.bitrate = 120, .hw_value = 24, }, 51 {.bitrate = 180, .hw_value = 36, }, 52 {.bitrate = 240, .hw_value = 48, }, 53 {.bitrate = 360, .hw_value = 72, }, 54 {.bitrate = 480, .hw_value = 96, }, 55 {.bitrate = 540, .hw_value = 108, }, 56 }; 57 58 /* Supported crypto cipher suits to be advertised to cfg80211 */ 59 static const u32 qtnf_cipher_suites[] = { 60 WLAN_CIPHER_SUITE_TKIP, 61 WLAN_CIPHER_SUITE_CCMP, 62 WLAN_CIPHER_SUITE_AES_CMAC, 63 }; 64 65 /* Supported mgmt frame types to be advertised to cfg80211 */ 66 static const struct ieee80211_txrx_stypes 67 qtnf_mgmt_stypes[NUM_NL80211_IFTYPES] = { 68 [NL80211_IFTYPE_STATION] = { 69 .tx = BIT(IEEE80211_STYPE_ACTION >> 4), 70 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 71 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 72 }, 73 [NL80211_IFTYPE_AP] = { 74 .tx = BIT(IEEE80211_STYPE_ACTION >> 4), 75 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 76 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 77 BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | 78 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | 79 BIT(IEEE80211_STYPE_AUTH >> 4), 80 }, 81 }; 82 83 static int 84 qtnf_change_virtual_intf(struct wiphy *wiphy, 85 struct net_device *dev, 86 enum nl80211_iftype type, 87 struct vif_params *params) 88 { 89 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 90 u8 *mac_addr; 91 int ret; 92 93 if (params) 94 mac_addr = params->macaddr; 95 else 96 mac_addr = NULL; 97 98 qtnf_scan_done(vif->mac, true); 99 100 ret = qtnf_cmd_send_change_intf_type(vif, type, mac_addr); 101 if (ret) { 102 pr_err("VIF%u.%u: failed to change VIF type: %d\n", 103 vif->mac->macid, vif->vifid, ret); 104 return ret; 105 } 106 107 vif->wdev.iftype = type; 108 return 0; 109 } 110 111 int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 112 { 113 struct net_device *netdev = wdev->netdev; 114 struct qtnf_vif *vif; 115 116 if (WARN_ON(!netdev)) 117 return -EFAULT; 118 119 vif = qtnf_netdev_get_priv(wdev->netdev); 120 121 qtnf_scan_done(vif->mac, true); 122 123 if (qtnf_cmd_send_del_intf(vif)) 124 pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid, 125 vif->vifid); 126 127 /* Stop data */ 128 netif_tx_stop_all_queues(netdev); 129 if (netif_carrier_ok(netdev)) 130 netif_carrier_off(netdev); 131 132 if (netdev->reg_state == NETREG_REGISTERED) 133 unregister_netdevice(netdev); 134 135 vif->netdev->ieee80211_ptr = NULL; 136 vif->netdev = NULL; 137 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 138 eth_zero_addr(vif->mac_addr); 139 eth_zero_addr(vif->bssid); 140 141 return 0; 142 } 143 144 static struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy, 145 const char *name, 146 unsigned char name_assign_t, 147 enum nl80211_iftype type, 148 struct vif_params *params) 149 { 150 struct qtnf_wmac *mac; 151 struct qtnf_vif *vif; 152 u8 *mac_addr = NULL; 153 154 mac = wiphy_priv(wiphy); 155 156 if (!mac) 157 return ERR_PTR(-EFAULT); 158 159 switch (type) { 160 case NL80211_IFTYPE_STATION: 161 case NL80211_IFTYPE_AP: 162 vif = qtnf_mac_get_free_vif(mac); 163 if (!vif) { 164 pr_err("MAC%u: no free VIF available\n", mac->macid); 165 return ERR_PTR(-EFAULT); 166 } 167 168 eth_zero_addr(vif->mac_addr); 169 vif->bss_priority = QTNF_DEF_BSS_PRIORITY; 170 vif->wdev.wiphy = wiphy; 171 vif->wdev.iftype = type; 172 vif->sta_state = QTNF_STA_DISCONNECTED; 173 break; 174 default: 175 pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type); 176 return ERR_PTR(-ENOTSUPP); 177 } 178 179 if (params) 180 mac_addr = params->macaddr; 181 182 if (qtnf_cmd_send_add_intf(vif, type, mac_addr)) { 183 pr_err("VIF%u.%u: failed to add VIF\n", mac->macid, vif->vifid); 184 goto err_cmd; 185 } 186 187 if (!is_valid_ether_addr(vif->mac_addr)) { 188 pr_err("VIF%u.%u: FW reported bad MAC: %pM\n", 189 mac->macid, vif->vifid, vif->mac_addr); 190 goto err_mac; 191 } 192 193 if (qtnf_core_net_attach(mac, vif, name, name_assign_t, type)) { 194 pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid, 195 vif->vifid); 196 goto err_net; 197 } 198 199 vif->wdev.netdev = vif->netdev; 200 return &vif->wdev; 201 202 err_net: 203 vif->netdev = NULL; 204 err_mac: 205 qtnf_cmd_send_del_intf(vif); 206 err_cmd: 207 vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 208 eth_zero_addr(vif->mac_addr); 209 eth_zero_addr(vif->bssid); 210 211 return ERR_PTR(-EFAULT); 212 } 213 214 static int qtnf_mgmt_set_appie(struct qtnf_vif *vif, 215 const struct cfg80211_beacon_data *info) 216 { 217 int ret = 0; 218 219 if (!info->beacon_ies || !info->beacon_ies_len) { 220 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 221 NULL, 0); 222 } else { 223 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, 224 info->beacon_ies, 225 info->beacon_ies_len); 226 } 227 228 if (ret) 229 goto out; 230 231 if (!info->proberesp_ies || !info->proberesp_ies_len) { 232 ret = qtnf_cmd_send_mgmt_set_appie(vif, 233 QLINK_IE_SET_PROBE_RESP_IES, 234 NULL, 0); 235 } else { 236 ret = qtnf_cmd_send_mgmt_set_appie(vif, 237 QLINK_IE_SET_PROBE_RESP_IES, 238 info->proberesp_ies, 239 info->proberesp_ies_len); 240 } 241 242 if (ret) 243 goto out; 244 245 if (!info->assocresp_ies || !info->assocresp_ies_len) { 246 ret = qtnf_cmd_send_mgmt_set_appie(vif, 247 QLINK_IE_SET_ASSOC_RESP, 248 NULL, 0); 249 } else { 250 ret = qtnf_cmd_send_mgmt_set_appie(vif, 251 QLINK_IE_SET_ASSOC_RESP, 252 info->assocresp_ies, 253 info->assocresp_ies_len); 254 } 255 256 out: 257 return ret; 258 } 259 260 static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev, 261 struct cfg80211_beacon_data *info) 262 { 263 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 264 265 return qtnf_mgmt_set_appie(vif, info); 266 } 267 268 static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev, 269 struct cfg80211_ap_settings *settings) 270 { 271 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 272 int ret; 273 274 ret = qtnf_cmd_send_start_ap(vif, settings); 275 if (ret) 276 pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid, 277 vif->vifid); 278 279 return ret; 280 } 281 282 static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev) 283 { 284 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 285 int ret; 286 287 qtnf_scan_done(vif->mac, true); 288 289 ret = qtnf_cmd_send_stop_ap(vif); 290 if (ret) { 291 pr_err("VIF%u.%u: failed to stop AP operation in FW\n", 292 vif->mac->macid, vif->vifid); 293 294 netif_carrier_off(vif->netdev); 295 } 296 297 return ret; 298 } 299 300 static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed) 301 { 302 struct qtnf_wmac *mac = wiphy_priv(wiphy); 303 struct qtnf_vif *vif; 304 int ret; 305 306 vif = qtnf_mac_get_base_vif(mac); 307 if (!vif) { 308 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 309 return -EFAULT; 310 } 311 312 if (changed & (WIPHY_PARAM_RETRY_LONG | WIPHY_PARAM_RETRY_SHORT)) { 313 pr_err("MAC%u: can't modify retry params\n", mac->macid); 314 return -EOPNOTSUPP; 315 } 316 317 ret = qtnf_cmd_send_update_phy_params(mac, changed); 318 if (ret) 319 pr_err("MAC%u: failed to update PHY params\n", mac->macid); 320 321 return ret; 322 } 323 324 static void 325 qtnf_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev, 326 u16 frame_type, bool reg) 327 { 328 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 329 u16 mgmt_type; 330 u16 new_mask; 331 u16 qlink_frame_type = 0; 332 333 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 334 335 if (reg) 336 new_mask = vif->mgmt_frames_bitmask | BIT(mgmt_type); 337 else 338 new_mask = vif->mgmt_frames_bitmask & ~BIT(mgmt_type); 339 340 if (new_mask == vif->mgmt_frames_bitmask) 341 return; 342 343 switch (frame_type & IEEE80211_FCTL_STYPE) { 344 case IEEE80211_STYPE_REASSOC_REQ: 345 case IEEE80211_STYPE_ASSOC_REQ: 346 qlink_frame_type = QLINK_MGMT_FRAME_ASSOC_REQ; 347 break; 348 case IEEE80211_STYPE_AUTH: 349 qlink_frame_type = QLINK_MGMT_FRAME_AUTH; 350 break; 351 case IEEE80211_STYPE_PROBE_REQ: 352 qlink_frame_type = QLINK_MGMT_FRAME_PROBE_REQ; 353 break; 354 case IEEE80211_STYPE_ACTION: 355 qlink_frame_type = QLINK_MGMT_FRAME_ACTION; 356 break; 357 default: 358 pr_warn("VIF%u.%u: unsupported frame type: %X\n", 359 vif->mac->macid, vif->vifid, 360 (frame_type & IEEE80211_FCTL_STYPE) >> 4); 361 return; 362 } 363 364 if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) { 365 pr_warn("VIF%u.%u: failed to %sregister mgmt frame type 0x%x\n", 366 vif->mac->macid, vif->vifid, reg ? "" : "un", 367 frame_type); 368 return; 369 } 370 371 vif->mgmt_frames_bitmask = new_mask; 372 pr_debug("VIF%u.%u: %sregistered mgmt frame type 0x%x\n", 373 vif->mac->macid, vif->vifid, reg ? "" : "un", frame_type); 374 } 375 376 static int 377 qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 378 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 379 { 380 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 381 const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; 382 u32 short_cookie = prandom_u32(); 383 u16 flags = 0; 384 385 *cookie = short_cookie; 386 387 if (params->offchan) 388 flags |= QLINK_MGMT_FRAME_TX_FLAG_OFFCHAN; 389 390 if (params->no_cck) 391 flags |= QLINK_MGMT_FRAME_TX_FLAG_NO_CCK; 392 393 if (params->dont_wait_for_ack) 394 flags |= QLINK_MGMT_FRAME_TX_FLAG_ACK_NOWAIT; 395 396 pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n", 397 wdev->netdev->name, params->chan->center_freq, 398 le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da, 399 params->len, short_cookie, flags); 400 401 return qtnf_cmd_send_mgmt_frame(vif, short_cookie, flags, 402 params->chan->center_freq, 403 params->buf, params->len); 404 } 405 406 static int 407 qtnf_get_station(struct wiphy *wiphy, struct net_device *dev, 408 const u8 *mac, struct station_info *sinfo) 409 { 410 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 411 412 return qtnf_cmd_get_sta_info(vif, mac, sinfo); 413 } 414 415 static int 416 qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev, 417 int idx, u8 *mac, struct station_info *sinfo) 418 { 419 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 420 const struct qtnf_sta_node *sta_node; 421 int ret; 422 423 sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx); 424 425 if (unlikely(!sta_node)) 426 return -ENOENT; 427 428 ether_addr_copy(mac, sta_node->mac_addr); 429 430 ret = qtnf_cmd_get_sta_info(vif, sta_node->mac_addr, sinfo); 431 432 if (unlikely(ret == -ENOENT)) { 433 qtnf_sta_list_del(&vif->sta_list, mac); 434 cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL); 435 sinfo->filled = 0; 436 } 437 438 return ret; 439 } 440 441 static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev, 442 u8 key_index, bool pairwise, const u8 *mac_addr, 443 struct key_params *params) 444 { 445 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 446 int ret; 447 448 ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params); 449 if (ret) 450 pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n", 451 vif->mac->macid, vif->vifid, params->cipher, key_index, 452 pairwise); 453 454 return ret; 455 } 456 457 static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev, 458 u8 key_index, bool pairwise, const u8 *mac_addr) 459 { 460 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 461 int ret; 462 463 ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr); 464 if (ret) 465 pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n", 466 vif->mac->macid, vif->vifid, key_index, pairwise); 467 468 return ret; 469 } 470 471 static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev, 472 u8 key_index, bool unicast, bool multicast) 473 { 474 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 475 int ret; 476 477 ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast); 478 if (ret) 479 pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n", 480 vif->mac->macid, vif->vifid, key_index, unicast, 481 multicast); 482 483 return ret; 484 } 485 486 static int 487 qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, 488 u8 key_index) 489 { 490 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 491 int ret; 492 493 ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index); 494 if (ret) 495 pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n", 496 vif->mac->macid, vif->vifid, key_index); 497 498 return ret; 499 } 500 501 static int 502 qtnf_change_station(struct wiphy *wiphy, struct net_device *dev, 503 const u8 *mac, struct station_parameters *params) 504 { 505 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 506 int ret; 507 508 ret = qtnf_cmd_send_change_sta(vif, mac, params); 509 if (ret) 510 pr_err("VIF%u.%u: failed to change STA %pM\n", 511 vif->mac->macid, vif->vifid, mac); 512 513 return ret; 514 } 515 516 static int 517 qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, 518 struct station_del_parameters *params) 519 { 520 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 521 int ret; 522 523 if (params->mac && 524 (vif->wdev.iftype == NL80211_IFTYPE_AP) && 525 !is_broadcast_ether_addr(params->mac) && 526 !qtnf_sta_list_lookup(&vif->sta_list, params->mac)) 527 return 0; 528 529 ret = qtnf_cmd_send_del_sta(vif, params); 530 if (ret) 531 pr_err("VIF%u.%u: failed to delete STA %pM\n", 532 vif->mac->macid, vif->vifid, params->mac); 533 return ret; 534 } 535 536 static void qtnf_scan_timeout(struct timer_list *t) 537 { 538 struct qtnf_wmac *mac = from_timer(mac, t, scan_timeout); 539 540 pr_warn("mac%d scan timed out\n", mac->macid); 541 qtnf_scan_done(mac, true); 542 } 543 544 static int 545 qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 546 { 547 struct qtnf_wmac *mac = wiphy_priv(wiphy); 548 549 mac->scan_req = request; 550 551 if (qtnf_cmd_send_scan(mac)) { 552 pr_err("MAC%u: failed to start scan\n", mac->macid); 553 mac->scan_req = NULL; 554 return -EFAULT; 555 } 556 557 mac->scan_timeout.function = qtnf_scan_timeout; 558 mod_timer(&mac->scan_timeout, 559 jiffies + QTNF_SCAN_TIMEOUT_SEC * HZ); 560 561 return 0; 562 } 563 564 static int 565 qtnf_connect(struct wiphy *wiphy, struct net_device *dev, 566 struct cfg80211_connect_params *sme) 567 { 568 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 569 int ret; 570 571 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 572 return -EOPNOTSUPP; 573 574 if (vif->sta_state != QTNF_STA_DISCONNECTED) 575 return -EBUSY; 576 577 if (sme->bssid) 578 ether_addr_copy(vif->bssid, sme->bssid); 579 else 580 eth_zero_addr(vif->bssid); 581 582 ret = qtnf_cmd_send_connect(vif, sme); 583 if (ret) { 584 pr_err("VIF%u.%u: failed to connect\n", vif->mac->macid, 585 vif->vifid); 586 return ret; 587 } 588 589 vif->sta_state = QTNF_STA_CONNECTING; 590 return 0; 591 } 592 593 static int 594 qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev, 595 u16 reason_code) 596 { 597 struct qtnf_wmac *mac = wiphy_priv(wiphy); 598 struct qtnf_vif *vif; 599 int ret; 600 601 vif = qtnf_mac_get_base_vif(mac); 602 if (!vif) { 603 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 604 return -EFAULT; 605 } 606 607 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 608 return -EOPNOTSUPP; 609 610 if (vif->sta_state == QTNF_STA_DISCONNECTED) 611 return 0; 612 613 ret = qtnf_cmd_send_disconnect(vif, reason_code); 614 if (ret) { 615 pr_err("VIF%u.%u: failed to disconnect\n", mac->macid, 616 vif->vifid); 617 return ret; 618 } 619 620 vif->sta_state = QTNF_STA_DISCONNECTED; 621 return 0; 622 } 623 624 static int 625 qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev, 626 int idx, struct survey_info *survey) 627 { 628 struct qtnf_wmac *mac = wiphy_priv(wiphy); 629 struct wireless_dev *wdev = dev->ieee80211_ptr; 630 struct ieee80211_supported_band *sband; 631 const struct cfg80211_chan_def *chandef = &wdev->chandef; 632 struct ieee80211_channel *chan; 633 struct qtnf_chan_stats stats; 634 struct qtnf_vif *vif; 635 int ret; 636 637 vif = qtnf_netdev_get_priv(dev); 638 639 sband = wiphy->bands[NL80211_BAND_2GHZ]; 640 if (sband && idx >= sband->n_channels) { 641 idx -= sband->n_channels; 642 sband = NULL; 643 } 644 645 if (!sband) 646 sband = wiphy->bands[NL80211_BAND_5GHZ]; 647 648 if (!sband || idx >= sband->n_channels) 649 return -ENOENT; 650 651 chan = &sband->channels[idx]; 652 memset(&stats, 0, sizeof(stats)); 653 654 survey->channel = chan; 655 survey->filled = 0x0; 656 657 if (chandef->chan) { 658 if (chan->hw_value == chandef->chan->hw_value) 659 survey->filled = SURVEY_INFO_IN_USE; 660 } 661 662 ret = qtnf_cmd_get_chan_stats(mac, chan->hw_value, &stats); 663 switch (ret) { 664 case 0: 665 if (unlikely(stats.chan_num != chan->hw_value)) { 666 pr_err("received stats for channel %d instead of %d\n", 667 stats.chan_num, chan->hw_value); 668 ret = -EINVAL; 669 break; 670 } 671 672 survey->filled |= SURVEY_INFO_TIME | 673 SURVEY_INFO_TIME_SCAN | 674 SURVEY_INFO_TIME_BUSY | 675 SURVEY_INFO_TIME_RX | 676 SURVEY_INFO_TIME_TX | 677 SURVEY_INFO_NOISE_DBM; 678 679 survey->time_scan = stats.cca_try; 680 survey->time = stats.cca_try; 681 survey->time_tx = stats.cca_tx; 682 survey->time_rx = stats.cca_rx; 683 survey->time_busy = stats.cca_busy; 684 survey->noise = stats.chan_noise; 685 break; 686 case -ENOENT: 687 pr_debug("no stats for channel %u\n", chan->hw_value); 688 ret = 0; 689 break; 690 default: 691 pr_debug("failed to get chan(%d) stats from card\n", 692 chan->hw_value); 693 ret = -EINVAL; 694 break; 695 } 696 697 return ret; 698 } 699 700 static int 701 qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 702 struct cfg80211_chan_def *chandef) 703 { 704 struct net_device *ndev = wdev->netdev; 705 struct qtnf_vif *vif; 706 int ret; 707 708 if (!ndev) 709 return -ENODEV; 710 711 vif = qtnf_netdev_get_priv(wdev->netdev); 712 713 ret = qtnf_cmd_get_channel(vif, chandef); 714 if (ret) { 715 pr_err("%s: failed to get channel: %d\n", ndev->name, ret); 716 goto out; 717 } 718 719 if (!cfg80211_chandef_valid(chandef)) { 720 pr_err("%s: bad chan freq1=%u freq2=%u bw=%u\n", ndev->name, 721 chandef->center_freq1, chandef->center_freq2, 722 chandef->width); 723 ret = -ENODATA; 724 } 725 726 out: 727 return ret; 728 } 729 730 static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev, 731 struct cfg80211_csa_settings *params) 732 { 733 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 734 int ret; 735 736 pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name, 737 params->chandef.chan->hw_value, params->count, 738 params->radar_required, params->block_tx); 739 740 if (!cfg80211_chandef_valid(¶ms->chandef)) { 741 pr_err("%s: invalid channel\n", dev->name); 742 return -EINVAL; 743 } 744 745 ret = qtnf_cmd_send_chan_switch(vif, params); 746 if (ret) 747 pr_warn("%s: failed to switch to channel (%u)\n", 748 dev->name, params->chandef.chan->hw_value); 749 750 return ret; 751 } 752 753 static struct cfg80211_ops qtn_cfg80211_ops = { 754 .add_virtual_intf = qtnf_add_virtual_intf, 755 .change_virtual_intf = qtnf_change_virtual_intf, 756 .del_virtual_intf = qtnf_del_virtual_intf, 757 .start_ap = qtnf_start_ap, 758 .change_beacon = qtnf_change_beacon, 759 .stop_ap = qtnf_stop_ap, 760 .set_wiphy_params = qtnf_set_wiphy_params, 761 .mgmt_frame_register = qtnf_mgmt_frame_register, 762 .mgmt_tx = qtnf_mgmt_tx, 763 .change_station = qtnf_change_station, 764 .del_station = qtnf_del_station, 765 .get_station = qtnf_get_station, 766 .dump_station = qtnf_dump_station, 767 .add_key = qtnf_add_key, 768 .del_key = qtnf_del_key, 769 .set_default_key = qtnf_set_default_key, 770 .set_default_mgmt_key = qtnf_set_default_mgmt_key, 771 .scan = qtnf_scan, 772 .connect = qtnf_connect, 773 .disconnect = qtnf_disconnect, 774 .dump_survey = qtnf_dump_survey, 775 .get_channel = qtnf_get_channel, 776 .channel_switch = qtnf_channel_switch 777 }; 778 779 static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy_in, 780 struct regulatory_request *req) 781 { 782 struct qtnf_wmac *mac = wiphy_priv(wiphy_in); 783 struct qtnf_bus *bus = mac->bus; 784 struct wiphy *wiphy; 785 unsigned int mac_idx; 786 enum nl80211_band band; 787 int ret; 788 789 pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator, 790 req->alpha2[0], req->alpha2[1]); 791 792 ret = qtnf_cmd_reg_notify(bus, req); 793 if (ret) { 794 if (ret != -EOPNOTSUPP && ret != -EALREADY) 795 pr_err("failed to update reg domain to %c%c\n", 796 req->alpha2[0], req->alpha2[1]); 797 return; 798 } 799 800 for (mac_idx = 0; mac_idx < QTNF_MAX_MAC; ++mac_idx) { 801 if (!(bus->hw_info.mac_bitmap & (1 << mac_idx))) 802 continue; 803 804 mac = bus->mac[mac_idx]; 805 wiphy = priv_to_wiphy(mac); 806 807 for (band = 0; band < NUM_NL80211_BANDS; ++band) { 808 if (!wiphy->bands[band]) 809 continue; 810 811 ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]); 812 if (ret) 813 pr_err("failed to get chan info for mac %u band %u\n", 814 mac_idx, band); 815 } 816 } 817 } 818 819 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus) 820 { 821 struct wiphy *wiphy; 822 823 wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac)); 824 if (!wiphy) 825 return NULL; 826 827 set_wiphy_dev(wiphy, bus->dev); 828 829 return wiphy; 830 } 831 832 static int qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, 833 struct ieee80211_iface_combination *if_comb, 834 const struct qtnf_mac_info *mac_info) 835 { 836 size_t max_interfaces = 0; 837 u16 interface_modes = 0; 838 size_t i; 839 840 if (unlikely(!mac_info->limits || !mac_info->n_limits)) 841 return -ENOENT; 842 843 if_comb->limits = mac_info->limits; 844 if_comb->n_limits = mac_info->n_limits; 845 846 for (i = 0; i < mac_info->n_limits; i++) { 847 max_interfaces += mac_info->limits[i].max; 848 interface_modes |= mac_info->limits[i].types; 849 } 850 851 if_comb->num_different_channels = 1; 852 if_comb->beacon_int_infra_match = true; 853 if_comb->max_interfaces = max_interfaces; 854 if_comb->radar_detect_widths = mac_info->radar_detect_widths; 855 wiphy->interface_modes = interface_modes; 856 857 return 0; 858 } 859 860 int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) 861 { 862 struct wiphy *wiphy = priv_to_wiphy(mac); 863 struct ieee80211_iface_combination *iface_comb = NULL; 864 int ret; 865 866 if (!wiphy) { 867 pr_err("invalid wiphy pointer\n"); 868 return -EFAULT; 869 } 870 871 iface_comb = kzalloc(sizeof(*iface_comb), GFP_KERNEL); 872 if (!iface_comb) 873 return -ENOMEM; 874 875 ret = qtnf_wiphy_setup_if_comb(wiphy, iface_comb, &mac->macinfo); 876 if (ret) 877 goto out; 878 879 wiphy->frag_threshold = mac->macinfo.frag_thr; 880 wiphy->rts_threshold = mac->macinfo.rts_thr; 881 wiphy->retry_short = mac->macinfo.sretry_limit; 882 wiphy->retry_long = mac->macinfo.lretry_limit; 883 wiphy->coverage_class = mac->macinfo.coverage_class; 884 885 wiphy->max_scan_ssids = QTNF_MAX_SSID_LIST_LENGTH; 886 wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN; 887 wiphy->mgmt_stypes = qtnf_mgmt_stypes; 888 wiphy->max_remain_on_channel_duration = 5000; 889 890 wiphy->iface_combinations = iface_comb; 891 wiphy->n_iface_combinations = 1; 892 wiphy->max_num_csa_counters = 2; 893 894 /* Initialize cipher suits */ 895 wiphy->cipher_suites = qtnf_cipher_suites; 896 wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites); 897 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 898 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 899 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 900 WIPHY_FLAG_AP_UAPSD | 901 WIPHY_FLAG_HAS_CHANNEL_SWITCH; 902 903 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 904 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; 905 906 wiphy->available_antennas_tx = mac->macinfo.num_tx_chain; 907 wiphy->available_antennas_rx = mac->macinfo.num_rx_chain; 908 909 wiphy->max_ap_assoc_sta = mac->macinfo.max_ap_assoc_sta; 910 wiphy->ht_capa_mod_mask = &mac->macinfo.ht_cap_mod_mask; 911 wiphy->vht_capa_mod_mask = &mac->macinfo.vht_cap_mod_mask; 912 913 ether_addr_copy(wiphy->perm_addr, mac->macaddr); 914 915 if (hw_info->hw_capab & QLINK_HW_CAPAB_STA_INACT_TIMEOUT) 916 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 917 918 if (hw_info->hw_capab & QLINK_HW_CAPAB_REG_UPDATE) { 919 wiphy->regulatory_flags |= REGULATORY_STRICT_REG | 920 REGULATORY_CUSTOM_REG; 921 wiphy->reg_notifier = qtnf_cfg80211_reg_notifier; 922 wiphy_apply_custom_regulatory(wiphy, hw_info->rd); 923 } else { 924 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 925 } 926 927 ret = wiphy_register(wiphy); 928 if (ret < 0) 929 goto out; 930 931 if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) 932 ret = regulatory_set_wiphy_regd(wiphy, hw_info->rd); 933 else if (isalpha(hw_info->rd->alpha2[0]) && 934 isalpha(hw_info->rd->alpha2[1])) 935 ret = regulatory_hint(wiphy, hw_info->rd->alpha2); 936 937 out: 938 if (ret) { 939 kfree(iface_comb); 940 return ret; 941 } 942 943 return 0; 944 } 945 946 void qtnf_netdev_updown(struct net_device *ndev, bool up) 947 { 948 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 949 950 if (qtnf_cmd_send_updown_intf(vif, up)) 951 pr_err("failed to send up/down command to FW\n"); 952 } 953 954 void qtnf_virtual_intf_cleanup(struct net_device *ndev) 955 { 956 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 957 struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy); 958 959 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) { 960 switch (vif->sta_state) { 961 case QTNF_STA_DISCONNECTED: 962 break; 963 case QTNF_STA_CONNECTING: 964 cfg80211_connect_result(vif->netdev, 965 vif->bssid, NULL, 0, 966 NULL, 0, 967 WLAN_STATUS_UNSPECIFIED_FAILURE, 968 GFP_KERNEL); 969 qtnf_disconnect(vif->wdev.wiphy, ndev, 970 WLAN_REASON_DEAUTH_LEAVING); 971 break; 972 case QTNF_STA_CONNECTED: 973 cfg80211_disconnected(vif->netdev, 974 WLAN_REASON_DEAUTH_LEAVING, 975 NULL, 0, 1, GFP_KERNEL); 976 qtnf_disconnect(vif->wdev.wiphy, ndev, 977 WLAN_REASON_DEAUTH_LEAVING); 978 break; 979 } 980 981 vif->sta_state = QTNF_STA_DISCONNECTED; 982 } 983 984 qtnf_scan_done(mac, true); 985 } 986 987 void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif) 988 { 989 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) { 990 switch (vif->sta_state) { 991 case QTNF_STA_CONNECTING: 992 cfg80211_connect_result(vif->netdev, 993 vif->bssid, NULL, 0, 994 NULL, 0, 995 WLAN_STATUS_UNSPECIFIED_FAILURE, 996 GFP_KERNEL); 997 break; 998 case QTNF_STA_CONNECTED: 999 cfg80211_disconnected(vif->netdev, 1000 WLAN_REASON_DEAUTH_LEAVING, 1001 NULL, 0, 1, GFP_KERNEL); 1002 break; 1003 case QTNF_STA_DISCONNECTED: 1004 break; 1005 } 1006 } 1007 1008 cfg80211_shutdown_all_interfaces(vif->wdev.wiphy); 1009 vif->sta_state = QTNF_STA_DISCONNECTED; 1010 } 1011 1012 void qtnf_band_init_rates(struct ieee80211_supported_band *band) 1013 { 1014 switch (band->band) { 1015 case NL80211_BAND_2GHZ: 1016 band->bitrates = qtnf_rates_2g; 1017 band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g); 1018 break; 1019 case NL80211_BAND_5GHZ: 1020 band->bitrates = qtnf_rates_5g; 1021 band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g); 1022 break; 1023 default: 1024 band->bitrates = NULL; 1025 band->n_bitrates = 0; 1026 break; 1027 } 1028 } 1029