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_MGMT_FRAME_BEACON, 221 NULL, 0); 222 } else { 223 ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_MGMT_FRAME_BEACON, 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_MGMT_FRAME_PROBE_RESP, 234 NULL, 0); 235 } else { 236 ret = qtnf_cmd_send_mgmt_set_appie(vif, 237 QLINK_MGMT_FRAME_PROBE_RESP, 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_MGMT_FRAME_ASSOC_RESP, 248 NULL, 0); 249 } else { 250 ret = qtnf_cmd_send_mgmt_set_appie(vif, 251 QLINK_MGMT_FRAME_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_config_ap(vif, settings); 275 if (ret) { 276 pr_err("VIF%u.%u: failed to push config to FW\n", 277 vif->mac->macid, vif->vifid); 278 goto out; 279 } 280 281 ret = qtnf_mgmt_set_appie(vif, &settings->beacon); 282 if (ret) { 283 pr_err("VIF%u.%u: failed to add IEs to beacon\n", 284 vif->mac->macid, vif->vifid); 285 goto out; 286 } 287 288 ret = qtnf_cmd_send_start_ap(vif); 289 if (ret) 290 pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid, 291 vif->vifid); 292 293 out: 294 return ret; 295 } 296 297 static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev) 298 { 299 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 300 int ret; 301 302 qtnf_scan_done(vif->mac, true); 303 304 ret = qtnf_cmd_send_stop_ap(vif); 305 if (ret) { 306 pr_err("VIF%u.%u: failed to stop AP operation in FW\n", 307 vif->mac->macid, vif->vifid); 308 309 netif_carrier_off(vif->netdev); 310 } 311 312 return ret; 313 } 314 315 static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed) 316 { 317 struct qtnf_wmac *mac = wiphy_priv(wiphy); 318 struct qtnf_vif *vif; 319 int ret; 320 321 vif = qtnf_mac_get_base_vif(mac); 322 if (!vif) { 323 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 324 return -EFAULT; 325 } 326 327 if (changed & (WIPHY_PARAM_RETRY_LONG | WIPHY_PARAM_RETRY_SHORT)) { 328 pr_err("MAC%u: can't modify retry params\n", mac->macid); 329 return -EOPNOTSUPP; 330 } 331 332 ret = qtnf_cmd_send_update_phy_params(mac, changed); 333 if (ret) 334 pr_err("MAC%u: failed to update PHY params\n", mac->macid); 335 336 return ret; 337 } 338 339 static void 340 qtnf_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev, 341 u16 frame_type, bool reg) 342 { 343 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 344 u16 mgmt_type; 345 u16 new_mask; 346 u16 qlink_frame_type = 0; 347 348 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 349 350 if (reg) 351 new_mask = vif->mgmt_frames_bitmask | BIT(mgmt_type); 352 else 353 new_mask = vif->mgmt_frames_bitmask & ~BIT(mgmt_type); 354 355 if (new_mask == vif->mgmt_frames_bitmask) 356 return; 357 358 switch (frame_type & IEEE80211_FCTL_STYPE) { 359 case IEEE80211_STYPE_REASSOC_REQ: 360 case IEEE80211_STYPE_ASSOC_REQ: 361 qlink_frame_type = QLINK_MGMT_FRAME_ASSOC_REQ; 362 break; 363 case IEEE80211_STYPE_AUTH: 364 qlink_frame_type = QLINK_MGMT_FRAME_AUTH; 365 break; 366 case IEEE80211_STYPE_PROBE_REQ: 367 qlink_frame_type = QLINK_MGMT_FRAME_PROBE_REQ; 368 break; 369 case IEEE80211_STYPE_ACTION: 370 qlink_frame_type = QLINK_MGMT_FRAME_ACTION; 371 break; 372 default: 373 pr_warn("VIF%u.%u: unsupported frame type: %X\n", 374 vif->mac->macid, vif->vifid, 375 (frame_type & IEEE80211_FCTL_STYPE) >> 4); 376 return; 377 } 378 379 if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) { 380 pr_warn("VIF%u.%u: failed to %sregister mgmt frame type 0x%x\n", 381 vif->mac->macid, vif->vifid, reg ? "" : "un", 382 frame_type); 383 return; 384 } 385 386 vif->mgmt_frames_bitmask = new_mask; 387 pr_debug("VIF%u.%u: %sregistered mgmt frame type 0x%x\n", 388 vif->mac->macid, vif->vifid, reg ? "" : "un", frame_type); 389 } 390 391 static int 392 qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 393 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 394 { 395 struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); 396 const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; 397 u32 short_cookie = prandom_u32(); 398 u16 flags = 0; 399 400 *cookie = short_cookie; 401 402 if (params->offchan) 403 flags |= QLINK_MGMT_FRAME_TX_FLAG_OFFCHAN; 404 405 if (params->no_cck) 406 flags |= QLINK_MGMT_FRAME_TX_FLAG_NO_CCK; 407 408 if (params->dont_wait_for_ack) 409 flags |= QLINK_MGMT_FRAME_TX_FLAG_ACK_NOWAIT; 410 411 pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n", 412 wdev->netdev->name, params->chan->center_freq, 413 le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da, 414 params->len, short_cookie, flags); 415 416 return qtnf_cmd_send_mgmt_frame(vif, short_cookie, flags, 417 params->chan->center_freq, 418 params->buf, params->len); 419 } 420 421 static int 422 qtnf_get_station(struct wiphy *wiphy, struct net_device *dev, 423 const u8 *mac, struct station_info *sinfo) 424 { 425 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 426 427 return qtnf_cmd_get_sta_info(vif, mac, sinfo); 428 } 429 430 static int 431 qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev, 432 int idx, u8 *mac, struct station_info *sinfo) 433 { 434 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 435 const struct qtnf_sta_node *sta_node; 436 int ret; 437 438 sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx); 439 440 if (unlikely(!sta_node)) 441 return -ENOENT; 442 443 ether_addr_copy(mac, sta_node->mac_addr); 444 445 ret = qtnf_cmd_get_sta_info(vif, sta_node->mac_addr, sinfo); 446 447 if (unlikely(ret == -ENOENT)) { 448 qtnf_sta_list_del(&vif->sta_list, mac); 449 cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL); 450 sinfo->filled = 0; 451 } 452 453 return ret; 454 } 455 456 static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev, 457 u8 key_index, bool pairwise, const u8 *mac_addr, 458 struct key_params *params) 459 { 460 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 461 int ret; 462 463 ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params); 464 if (ret) 465 pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n", 466 vif->mac->macid, vif->vifid, params->cipher, key_index, 467 pairwise); 468 469 return ret; 470 } 471 472 static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev, 473 u8 key_index, bool pairwise, const u8 *mac_addr) 474 { 475 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 476 int ret; 477 478 ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr); 479 if (ret) 480 pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n", 481 vif->mac->macid, vif->vifid, key_index, pairwise); 482 483 return ret; 484 } 485 486 static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev, 487 u8 key_index, bool unicast, bool multicast) 488 { 489 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 490 int ret; 491 492 ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast); 493 if (ret) 494 pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n", 495 vif->mac->macid, vif->vifid, key_index, unicast, 496 multicast); 497 498 return ret; 499 } 500 501 static int 502 qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, 503 u8 key_index) 504 { 505 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 506 int ret; 507 508 ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index); 509 if (ret) 510 pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n", 511 vif->mac->macid, vif->vifid, key_index); 512 513 return ret; 514 } 515 516 static int 517 qtnf_change_station(struct wiphy *wiphy, struct net_device *dev, 518 const u8 *mac, struct station_parameters *params) 519 { 520 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 521 int ret; 522 523 ret = qtnf_cmd_send_change_sta(vif, mac, params); 524 if (ret) 525 pr_err("VIF%u.%u: failed to change STA %pM\n", 526 vif->mac->macid, vif->vifid, mac); 527 528 return ret; 529 } 530 531 static int 532 qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, 533 struct station_del_parameters *params) 534 { 535 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 536 int ret; 537 538 if (params->mac && 539 (vif->wdev.iftype == NL80211_IFTYPE_AP) && 540 !is_broadcast_ether_addr(params->mac) && 541 !qtnf_sta_list_lookup(&vif->sta_list, params->mac)) 542 return 0; 543 544 ret = qtnf_cmd_send_del_sta(vif, params); 545 if (ret) 546 pr_err("VIF%u.%u: failed to delete STA %pM\n", 547 vif->mac->macid, vif->vifid, params->mac); 548 return ret; 549 } 550 551 static void qtnf_scan_timeout(struct timer_list *t) 552 { 553 struct qtnf_wmac *mac = from_timer(mac, t, scan_timeout); 554 555 pr_warn("mac%d scan timed out\n", mac->macid); 556 qtnf_scan_done(mac, true); 557 } 558 559 static int 560 qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 561 { 562 struct qtnf_wmac *mac = wiphy_priv(wiphy); 563 564 mac->scan_req = request; 565 566 if (qtnf_cmd_send_scan(mac)) { 567 pr_err("MAC%u: failed to start scan\n", mac->macid); 568 mac->scan_req = NULL; 569 return -EFAULT; 570 } 571 572 mac->scan_timeout.function = (TIMER_FUNC_TYPE)qtnf_scan_timeout; 573 mod_timer(&mac->scan_timeout, 574 jiffies + QTNF_SCAN_TIMEOUT_SEC * HZ); 575 576 return 0; 577 } 578 579 static int 580 qtnf_connect(struct wiphy *wiphy, struct net_device *dev, 581 struct cfg80211_connect_params *sme) 582 { 583 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 584 int ret; 585 586 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 587 return -EOPNOTSUPP; 588 589 if (vif->sta_state != QTNF_STA_DISCONNECTED) 590 return -EBUSY; 591 592 if (sme->bssid) 593 ether_addr_copy(vif->bssid, sme->bssid); 594 else 595 eth_zero_addr(vif->bssid); 596 597 ret = qtnf_cmd_send_connect(vif, sme); 598 if (ret) { 599 pr_err("VIF%u.%u: failed to connect\n", vif->mac->macid, 600 vif->vifid); 601 return ret; 602 } 603 604 vif->sta_state = QTNF_STA_CONNECTING; 605 return 0; 606 } 607 608 static int 609 qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev, 610 u16 reason_code) 611 { 612 struct qtnf_wmac *mac = wiphy_priv(wiphy); 613 struct qtnf_vif *vif; 614 int ret; 615 616 vif = qtnf_mac_get_base_vif(mac); 617 if (!vif) { 618 pr_err("MAC%u: primary VIF is not configured\n", mac->macid); 619 return -EFAULT; 620 } 621 622 if (vif->wdev.iftype != NL80211_IFTYPE_STATION) 623 return -EOPNOTSUPP; 624 625 if (vif->sta_state == QTNF_STA_DISCONNECTED) 626 return 0; 627 628 ret = qtnf_cmd_send_disconnect(vif, reason_code); 629 if (ret) { 630 pr_err("VIF%u.%u: failed to disconnect\n", mac->macid, 631 vif->vifid); 632 return ret; 633 } 634 635 vif->sta_state = QTNF_STA_DISCONNECTED; 636 return 0; 637 } 638 639 static int 640 qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev, 641 int idx, struct survey_info *survey) 642 { 643 struct qtnf_wmac *mac = wiphy_priv(wiphy); 644 struct wireless_dev *wdev = dev->ieee80211_ptr; 645 struct ieee80211_supported_band *sband; 646 const struct cfg80211_chan_def *chandef = &wdev->chandef; 647 struct ieee80211_channel *chan; 648 struct qtnf_chan_stats stats; 649 struct qtnf_vif *vif; 650 int ret; 651 652 vif = qtnf_netdev_get_priv(dev); 653 654 sband = wiphy->bands[NL80211_BAND_2GHZ]; 655 if (sband && idx >= sband->n_channels) { 656 idx -= sband->n_channels; 657 sband = NULL; 658 } 659 660 if (!sband) 661 sband = wiphy->bands[NL80211_BAND_5GHZ]; 662 663 if (!sband || idx >= sband->n_channels) 664 return -ENOENT; 665 666 chan = &sband->channels[idx]; 667 memset(&stats, 0, sizeof(stats)); 668 669 survey->channel = chan; 670 survey->filled = 0x0; 671 672 if (chandef->chan) { 673 if (chan->hw_value == chandef->chan->hw_value) 674 survey->filled = SURVEY_INFO_IN_USE; 675 } 676 677 ret = qtnf_cmd_get_chan_stats(mac, chan->hw_value, &stats); 678 switch (ret) { 679 case 0: 680 if (unlikely(stats.chan_num != chan->hw_value)) { 681 pr_err("received stats for channel %d instead of %d\n", 682 stats.chan_num, chan->hw_value); 683 ret = -EINVAL; 684 break; 685 } 686 687 survey->filled |= SURVEY_INFO_TIME | 688 SURVEY_INFO_TIME_SCAN | 689 SURVEY_INFO_TIME_BUSY | 690 SURVEY_INFO_TIME_RX | 691 SURVEY_INFO_TIME_TX | 692 SURVEY_INFO_NOISE_DBM; 693 694 survey->time_scan = stats.cca_try; 695 survey->time = stats.cca_try; 696 survey->time_tx = stats.cca_tx; 697 survey->time_rx = stats.cca_rx; 698 survey->time_busy = stats.cca_busy; 699 survey->noise = stats.chan_noise; 700 break; 701 case -ENOENT: 702 pr_debug("no stats for channel %u\n", chan->hw_value); 703 ret = 0; 704 break; 705 default: 706 pr_debug("failed to get chan(%d) stats from card\n", 707 chan->hw_value); 708 ret = -EINVAL; 709 break; 710 } 711 712 return ret; 713 } 714 715 static int 716 qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 717 struct cfg80211_chan_def *chandef) 718 { 719 struct net_device *ndev = wdev->netdev; 720 struct qtnf_vif *vif; 721 int ret; 722 723 if (!ndev) 724 return -ENODEV; 725 726 vif = qtnf_netdev_get_priv(wdev->netdev); 727 728 ret = qtnf_cmd_get_channel(vif, chandef); 729 if (ret) { 730 pr_err("%s: failed to get channel: %d\n", ndev->name, ret); 731 goto out; 732 } 733 734 if (!cfg80211_chandef_valid(chandef)) { 735 pr_err("%s: bad chan freq1=%u freq2=%u bw=%u\n", ndev->name, 736 chandef->center_freq1, chandef->center_freq2, 737 chandef->width); 738 ret = -ENODATA; 739 } 740 741 out: 742 return ret; 743 } 744 745 static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev, 746 struct cfg80211_csa_settings *params) 747 { 748 struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); 749 int ret; 750 751 pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name, 752 params->chandef.chan->hw_value, params->count, 753 params->radar_required, params->block_tx); 754 755 if (!cfg80211_chandef_valid(¶ms->chandef)) { 756 pr_err("%s: invalid channel\n", dev->name); 757 return -EINVAL; 758 } 759 760 ret = qtnf_cmd_send_chan_switch(vif, params); 761 if (ret) 762 pr_warn("%s: failed to switch to channel (%u)\n", 763 dev->name, params->chandef.chan->hw_value); 764 765 return ret; 766 } 767 768 static struct cfg80211_ops qtn_cfg80211_ops = { 769 .add_virtual_intf = qtnf_add_virtual_intf, 770 .change_virtual_intf = qtnf_change_virtual_intf, 771 .del_virtual_intf = qtnf_del_virtual_intf, 772 .start_ap = qtnf_start_ap, 773 .change_beacon = qtnf_change_beacon, 774 .stop_ap = qtnf_stop_ap, 775 .set_wiphy_params = qtnf_set_wiphy_params, 776 .mgmt_frame_register = qtnf_mgmt_frame_register, 777 .mgmt_tx = qtnf_mgmt_tx, 778 .change_station = qtnf_change_station, 779 .del_station = qtnf_del_station, 780 .get_station = qtnf_get_station, 781 .dump_station = qtnf_dump_station, 782 .add_key = qtnf_add_key, 783 .del_key = qtnf_del_key, 784 .set_default_key = qtnf_set_default_key, 785 .set_default_mgmt_key = qtnf_set_default_mgmt_key, 786 .scan = qtnf_scan, 787 .connect = qtnf_connect, 788 .disconnect = qtnf_disconnect, 789 .dump_survey = qtnf_dump_survey, 790 .get_channel = qtnf_get_channel, 791 .channel_switch = qtnf_channel_switch 792 }; 793 794 static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy_in, 795 struct regulatory_request *req) 796 { 797 struct qtnf_wmac *mac = wiphy_priv(wiphy_in); 798 struct qtnf_bus *bus = mac->bus; 799 struct wiphy *wiphy; 800 unsigned int mac_idx; 801 enum nl80211_band band; 802 int ret; 803 804 pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator, 805 req->alpha2[0], req->alpha2[1]); 806 807 ret = qtnf_cmd_reg_notify(bus, req); 808 if (ret) { 809 if (ret != -EOPNOTSUPP && ret != -EALREADY) 810 pr_err("failed to update reg domain to %c%c\n", 811 req->alpha2[0], req->alpha2[1]); 812 return; 813 } 814 815 for (mac_idx = 0; mac_idx < QTNF_MAX_MAC; ++mac_idx) { 816 if (!(bus->hw_info.mac_bitmap & (1 << mac_idx))) 817 continue; 818 819 mac = bus->mac[mac_idx]; 820 wiphy = priv_to_wiphy(mac); 821 822 for (band = 0; band < NUM_NL80211_BANDS; ++band) { 823 if (!wiphy->bands[band]) 824 continue; 825 826 ret = qtnf_cmd_get_mac_chan_info(mac, 827 wiphy->bands[band]); 828 if (ret) 829 pr_err("failed to get chan info for mac %u band %u\n", 830 mac_idx, band); 831 } 832 } 833 } 834 835 void qtnf_band_setup_htvht_caps(struct qtnf_mac_info *macinfo, 836 struct ieee80211_supported_band *band) 837 { 838 struct ieee80211_sta_ht_cap *ht_cap; 839 struct ieee80211_sta_vht_cap *vht_cap; 840 841 ht_cap = &band->ht_cap; 842 ht_cap->ht_supported = true; 843 memcpy(&ht_cap->cap, &macinfo->ht_cap.cap_info, 844 sizeof(u16)); 845 ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 846 ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 847 memcpy(&ht_cap->mcs, &macinfo->ht_cap.mcs, 848 sizeof(ht_cap->mcs)); 849 850 if (macinfo->phymode_cap & QLINK_PHYMODE_AC) { 851 vht_cap = &band->vht_cap; 852 vht_cap->vht_supported = true; 853 memcpy(&vht_cap->cap, 854 &macinfo->vht_cap.vht_cap_info, sizeof(u32)); 855 /* Update MCS support for VHT */ 856 memcpy(&vht_cap->vht_mcs, 857 &macinfo->vht_cap.supp_mcs, 858 sizeof(struct ieee80211_vht_mcs_info)); 859 } 860 } 861 862 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus) 863 { 864 struct wiphy *wiphy; 865 866 wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac)); 867 if (!wiphy) 868 return NULL; 869 870 set_wiphy_dev(wiphy, bus->dev); 871 872 return wiphy; 873 } 874 875 static int qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, 876 struct ieee80211_iface_combination *if_comb, 877 const struct qtnf_mac_info *mac_info) 878 { 879 size_t max_interfaces = 0; 880 u16 interface_modes = 0; 881 size_t i; 882 883 if (unlikely(!mac_info->limits || !mac_info->n_limits)) 884 return -ENOENT; 885 886 if_comb->limits = mac_info->limits; 887 if_comb->n_limits = mac_info->n_limits; 888 889 for (i = 0; i < mac_info->n_limits; i++) { 890 max_interfaces += mac_info->limits[i].max; 891 interface_modes |= mac_info->limits[i].types; 892 } 893 894 if_comb->num_different_channels = 1; 895 if_comb->beacon_int_infra_match = true; 896 if_comb->max_interfaces = max_interfaces; 897 if_comb->radar_detect_widths = mac_info->radar_detect_widths; 898 wiphy->interface_modes = interface_modes; 899 900 return 0; 901 } 902 903 int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) 904 { 905 struct wiphy *wiphy = priv_to_wiphy(mac); 906 struct ieee80211_iface_combination *iface_comb = NULL; 907 int ret; 908 909 if (!wiphy) { 910 pr_err("invalid wiphy pointer\n"); 911 return -EFAULT; 912 } 913 914 iface_comb = kzalloc(sizeof(*iface_comb), GFP_KERNEL); 915 if (!iface_comb) 916 return -ENOMEM; 917 918 ret = qtnf_wiphy_setup_if_comb(wiphy, iface_comb, &mac->macinfo); 919 if (ret) 920 goto out; 921 922 pr_info("MAC%u: phymode=%#x radar=%#x\n", mac->macid, 923 mac->macinfo.phymode_cap, mac->macinfo.radar_detect_widths); 924 925 wiphy->frag_threshold = mac->macinfo.frag_thr; 926 wiphy->rts_threshold = mac->macinfo.rts_thr; 927 wiphy->retry_short = mac->macinfo.sretry_limit; 928 wiphy->retry_long = mac->macinfo.lretry_limit; 929 wiphy->coverage_class = mac->macinfo.coverage_class; 930 931 wiphy->max_scan_ssids = QTNF_MAX_SSID_LIST_LENGTH; 932 wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN; 933 wiphy->mgmt_stypes = qtnf_mgmt_stypes; 934 wiphy->max_remain_on_channel_duration = 5000; 935 936 wiphy->iface_combinations = iface_comb; 937 wiphy->n_iface_combinations = 1; 938 wiphy->max_num_csa_counters = 2; 939 940 /* Initialize cipher suits */ 941 wiphy->cipher_suites = qtnf_cipher_suites; 942 wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites); 943 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 944 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 945 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 946 WIPHY_FLAG_AP_UAPSD | 947 WIPHY_FLAG_HAS_CHANNEL_SWITCH; 948 949 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 950 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; 951 952 wiphy->available_antennas_tx = mac->macinfo.num_tx_chain; 953 wiphy->available_antennas_rx = mac->macinfo.num_rx_chain; 954 955 wiphy->max_ap_assoc_sta = mac->macinfo.max_ap_assoc_sta; 956 957 ether_addr_copy(wiphy->perm_addr, mac->macaddr); 958 959 if (hw_info->hw_capab & QLINK_HW_CAPAB_STA_INACT_TIMEOUT) 960 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 961 962 if (hw_info->hw_capab & QLINK_HW_CAPAB_REG_UPDATE) { 963 wiphy->regulatory_flags |= REGULATORY_STRICT_REG | 964 REGULATORY_CUSTOM_REG; 965 wiphy->reg_notifier = qtnf_cfg80211_reg_notifier; 966 wiphy_apply_custom_regulatory(wiphy, hw_info->rd); 967 } else { 968 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 969 } 970 971 ret = wiphy_register(wiphy); 972 if (ret < 0) 973 goto out; 974 975 if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) 976 ret = regulatory_set_wiphy_regd(wiphy, hw_info->rd); 977 else if (isalpha(hw_info->rd->alpha2[0]) && 978 isalpha(hw_info->rd->alpha2[1])) 979 ret = regulatory_hint(wiphy, hw_info->rd->alpha2); 980 981 out: 982 if (ret) { 983 kfree(iface_comb); 984 return ret; 985 } 986 987 return 0; 988 } 989 990 void qtnf_netdev_updown(struct net_device *ndev, bool up) 991 { 992 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 993 994 if (qtnf_cmd_send_updown_intf(vif, up)) 995 pr_err("failed to send up/down command to FW\n"); 996 } 997 998 void qtnf_virtual_intf_cleanup(struct net_device *ndev) 999 { 1000 struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); 1001 struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy); 1002 1003 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) { 1004 switch (vif->sta_state) { 1005 case QTNF_STA_DISCONNECTED: 1006 break; 1007 case QTNF_STA_CONNECTING: 1008 cfg80211_connect_result(vif->netdev, 1009 vif->bssid, NULL, 0, 1010 NULL, 0, 1011 WLAN_STATUS_UNSPECIFIED_FAILURE, 1012 GFP_KERNEL); 1013 qtnf_disconnect(vif->wdev.wiphy, ndev, 1014 WLAN_REASON_DEAUTH_LEAVING); 1015 break; 1016 case QTNF_STA_CONNECTED: 1017 cfg80211_disconnected(vif->netdev, 1018 WLAN_REASON_DEAUTH_LEAVING, 1019 NULL, 0, 1, GFP_KERNEL); 1020 qtnf_disconnect(vif->wdev.wiphy, ndev, 1021 WLAN_REASON_DEAUTH_LEAVING); 1022 break; 1023 } 1024 1025 vif->sta_state = QTNF_STA_DISCONNECTED; 1026 } 1027 1028 qtnf_scan_done(mac, true); 1029 } 1030 1031 void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif) 1032 { 1033 if (vif->wdev.iftype == NL80211_IFTYPE_STATION) { 1034 switch (vif->sta_state) { 1035 case QTNF_STA_CONNECTING: 1036 cfg80211_connect_result(vif->netdev, 1037 vif->bssid, NULL, 0, 1038 NULL, 0, 1039 WLAN_STATUS_UNSPECIFIED_FAILURE, 1040 GFP_KERNEL); 1041 break; 1042 case QTNF_STA_CONNECTED: 1043 cfg80211_disconnected(vif->netdev, 1044 WLAN_REASON_DEAUTH_LEAVING, 1045 NULL, 0, 1, GFP_KERNEL); 1046 break; 1047 case QTNF_STA_DISCONNECTED: 1048 break; 1049 } 1050 } 1051 1052 cfg80211_shutdown_all_interfaces(vif->wdev.wiphy); 1053 vif->sta_state = QTNF_STA_DISCONNECTED; 1054 } 1055 1056 void qtnf_band_init_rates(struct ieee80211_supported_band *band) 1057 { 1058 switch (band->band) { 1059 case NL80211_BAND_2GHZ: 1060 band->bitrates = qtnf_rates_2g; 1061 band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g); 1062 break; 1063 case NL80211_BAND_5GHZ: 1064 band->bitrates = qtnf_rates_5g; 1065 band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g); 1066 break; 1067 default: 1068 band->bitrates = NULL; 1069 band->n_bitrates = 0; 1070 break; 1071 } 1072 } 1073