1 /* 2 * Copyright (c) 2004-2011 Atheros Communications Inc. 3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 19 20 #include <linux/moduleparam.h> 21 #include <linux/inetdevice.h> 22 #include <linux/export.h> 23 #include <linux/sched/signal.h> 24 25 #include "core.h" 26 #include "cfg80211.h" 27 #include "debug.h" 28 #include "hif-ops.h" 29 #include "testmode.h" 30 31 #define RATETAB_ENT(_rate, _rateid, _flags) { \ 32 .bitrate = (_rate), \ 33 .flags = (_flags), \ 34 .hw_value = (_rateid), \ 35 } 36 37 #define CHAN2G(_channel, _freq, _flags) { \ 38 .band = NL80211_BAND_2GHZ, \ 39 .hw_value = (_channel), \ 40 .center_freq = (_freq), \ 41 .flags = (_flags), \ 42 .max_antenna_gain = 0, \ 43 .max_power = 30, \ 44 } 45 46 #define CHAN5G(_channel, _flags) { \ 47 .band = NL80211_BAND_5GHZ, \ 48 .hw_value = (_channel), \ 49 .center_freq = 5000 + (5 * (_channel)), \ 50 .flags = (_flags), \ 51 .max_antenna_gain = 0, \ 52 .max_power = 30, \ 53 } 54 55 #define DEFAULT_BG_SCAN_PERIOD 60 56 57 struct ath6kl_cfg80211_match_probe_ssid { 58 struct cfg80211_ssid ssid; 59 u8 flag; 60 }; 61 62 static struct ieee80211_rate ath6kl_rates[] = { 63 RATETAB_ENT(10, 0x1, 0), 64 RATETAB_ENT(20, 0x2, 0), 65 RATETAB_ENT(55, 0x4, 0), 66 RATETAB_ENT(110, 0x8, 0), 67 RATETAB_ENT(60, 0x10, 0), 68 RATETAB_ENT(90, 0x20, 0), 69 RATETAB_ENT(120, 0x40, 0), 70 RATETAB_ENT(180, 0x80, 0), 71 RATETAB_ENT(240, 0x100, 0), 72 RATETAB_ENT(360, 0x200, 0), 73 RATETAB_ENT(480, 0x400, 0), 74 RATETAB_ENT(540, 0x800, 0), 75 }; 76 77 #define ath6kl_a_rates (ath6kl_rates + 4) 78 #define ath6kl_a_rates_size 8 79 #define ath6kl_g_rates (ath6kl_rates + 0) 80 #define ath6kl_g_rates_size 12 81 82 #define ath6kl_g_htcap IEEE80211_HT_CAP_SGI_20 83 #define ath6kl_a_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \ 84 IEEE80211_HT_CAP_SGI_20 | \ 85 IEEE80211_HT_CAP_SGI_40) 86 87 static struct ieee80211_channel ath6kl_2ghz_channels[] = { 88 CHAN2G(1, 2412, 0), 89 CHAN2G(2, 2417, 0), 90 CHAN2G(3, 2422, 0), 91 CHAN2G(4, 2427, 0), 92 CHAN2G(5, 2432, 0), 93 CHAN2G(6, 2437, 0), 94 CHAN2G(7, 2442, 0), 95 CHAN2G(8, 2447, 0), 96 CHAN2G(9, 2452, 0), 97 CHAN2G(10, 2457, 0), 98 CHAN2G(11, 2462, 0), 99 CHAN2G(12, 2467, 0), 100 CHAN2G(13, 2472, 0), 101 CHAN2G(14, 2484, 0), 102 }; 103 104 static struct ieee80211_channel ath6kl_5ghz_a_channels[] = { 105 CHAN5G(36, 0), CHAN5G(40, 0), 106 CHAN5G(44, 0), CHAN5G(48, 0), 107 CHAN5G(52, 0), CHAN5G(56, 0), 108 CHAN5G(60, 0), CHAN5G(64, 0), 109 CHAN5G(100, 0), CHAN5G(104, 0), 110 CHAN5G(108, 0), CHAN5G(112, 0), 111 CHAN5G(116, 0), CHAN5G(120, 0), 112 CHAN5G(124, 0), CHAN5G(128, 0), 113 CHAN5G(132, 0), CHAN5G(136, 0), 114 CHAN5G(140, 0), CHAN5G(149, 0), 115 CHAN5G(153, 0), CHAN5G(157, 0), 116 CHAN5G(161, 0), CHAN5G(165, 0), 117 CHAN5G(184, 0), CHAN5G(188, 0), 118 CHAN5G(192, 0), CHAN5G(196, 0), 119 CHAN5G(200, 0), CHAN5G(204, 0), 120 CHAN5G(208, 0), CHAN5G(212, 0), 121 CHAN5G(216, 0), 122 }; 123 124 static struct ieee80211_supported_band ath6kl_band_2ghz = { 125 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels), 126 .channels = ath6kl_2ghz_channels, 127 .n_bitrates = ath6kl_g_rates_size, 128 .bitrates = ath6kl_g_rates, 129 .ht_cap.cap = ath6kl_g_htcap, 130 .ht_cap.ht_supported = true, 131 }; 132 133 static struct ieee80211_supported_band ath6kl_band_5ghz = { 134 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels), 135 .channels = ath6kl_5ghz_a_channels, 136 .n_bitrates = ath6kl_a_rates_size, 137 .bitrates = ath6kl_a_rates, 138 .ht_cap.cap = ath6kl_a_htcap, 139 .ht_cap.ht_supported = true, 140 }; 141 142 #define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */ 143 144 /* returns true if scheduled scan was stopped */ 145 static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif) 146 { 147 struct ath6kl *ar = vif->ar; 148 149 if (!test_and_clear_bit(SCHED_SCANNING, &vif->flags)) 150 return false; 151 152 del_timer_sync(&vif->sched_scan_timer); 153 154 if (ar->state == ATH6KL_STATE_RECOVERY) 155 return true; 156 157 ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, false); 158 159 return true; 160 } 161 162 static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif) 163 { 164 struct ath6kl *ar = vif->ar; 165 bool stopped; 166 167 stopped = __ath6kl_cfg80211_sscan_stop(vif); 168 169 if (!stopped) 170 return; 171 172 cfg80211_sched_scan_stopped(ar->wiphy); 173 } 174 175 static int ath6kl_set_wpa_version(struct ath6kl_vif *vif, 176 enum nl80211_wpa_versions wpa_version) 177 { 178 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version); 179 180 if (!wpa_version) { 181 vif->auth_mode = NONE_AUTH; 182 } else if (wpa_version & NL80211_WPA_VERSION_2) { 183 vif->auth_mode = WPA2_AUTH; 184 } else if (wpa_version & NL80211_WPA_VERSION_1) { 185 vif->auth_mode = WPA_AUTH; 186 } else { 187 ath6kl_err("%s: %u not supported\n", __func__, wpa_version); 188 return -ENOTSUPP; 189 } 190 191 return 0; 192 } 193 194 static int ath6kl_set_auth_type(struct ath6kl_vif *vif, 195 enum nl80211_auth_type auth_type) 196 { 197 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type); 198 199 switch (auth_type) { 200 case NL80211_AUTHTYPE_OPEN_SYSTEM: 201 vif->dot11_auth_mode = OPEN_AUTH; 202 break; 203 case NL80211_AUTHTYPE_SHARED_KEY: 204 vif->dot11_auth_mode = SHARED_AUTH; 205 break; 206 case NL80211_AUTHTYPE_NETWORK_EAP: 207 vif->dot11_auth_mode = LEAP_AUTH; 208 break; 209 210 case NL80211_AUTHTYPE_AUTOMATIC: 211 vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH; 212 break; 213 214 default: 215 ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type); 216 return -ENOTSUPP; 217 } 218 219 return 0; 220 } 221 222 static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast) 223 { 224 u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto; 225 u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len : 226 &vif->grp_crypto_len; 227 228 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n", 229 __func__, cipher, ucast); 230 231 switch (cipher) { 232 case 0: 233 /* our own hack to use value 0 as no crypto used */ 234 *ar_cipher = NONE_CRYPT; 235 *ar_cipher_len = 0; 236 break; 237 case WLAN_CIPHER_SUITE_WEP40: 238 *ar_cipher = WEP_CRYPT; 239 *ar_cipher_len = 5; 240 break; 241 case WLAN_CIPHER_SUITE_WEP104: 242 *ar_cipher = WEP_CRYPT; 243 *ar_cipher_len = 13; 244 break; 245 case WLAN_CIPHER_SUITE_TKIP: 246 *ar_cipher = TKIP_CRYPT; 247 *ar_cipher_len = 0; 248 break; 249 case WLAN_CIPHER_SUITE_CCMP: 250 *ar_cipher = AES_CRYPT; 251 *ar_cipher_len = 0; 252 break; 253 case WLAN_CIPHER_SUITE_SMS4: 254 *ar_cipher = WAPI_CRYPT; 255 *ar_cipher_len = 0; 256 break; 257 default: 258 ath6kl_err("cipher 0x%x not supported\n", cipher); 259 return -ENOTSUPP; 260 } 261 262 return 0; 263 } 264 265 static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt) 266 { 267 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt); 268 269 if (key_mgmt == WLAN_AKM_SUITE_PSK) { 270 if (vif->auth_mode == WPA_AUTH) 271 vif->auth_mode = WPA_PSK_AUTH; 272 else if (vif->auth_mode == WPA2_AUTH) 273 vif->auth_mode = WPA2_PSK_AUTH; 274 } else if (key_mgmt == 0x00409600) { 275 if (vif->auth_mode == WPA_AUTH) 276 vif->auth_mode = WPA_AUTH_CCKM; 277 else if (vif->auth_mode == WPA2_AUTH) 278 vif->auth_mode = WPA2_AUTH_CCKM; 279 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) { 280 vif->auth_mode = NONE_AUTH; 281 } 282 } 283 284 static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif) 285 { 286 struct ath6kl *ar = vif->ar; 287 288 if (!test_bit(WMI_READY, &ar->flag)) { 289 ath6kl_err("wmi is not ready\n"); 290 return false; 291 } 292 293 if (!test_bit(WLAN_ENABLED, &vif->flags)) { 294 ath6kl_err("wlan disabled\n"); 295 return false; 296 } 297 298 return true; 299 } 300 301 static bool ath6kl_is_wpa_ie(const u8 *pos) 302 { 303 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && 304 pos[2] == 0x00 && pos[3] == 0x50 && 305 pos[4] == 0xf2 && pos[5] == 0x01; 306 } 307 308 static bool ath6kl_is_rsn_ie(const u8 *pos) 309 { 310 return pos[0] == WLAN_EID_RSN; 311 } 312 313 static bool ath6kl_is_wps_ie(const u8 *pos) 314 { 315 return (pos[0] == WLAN_EID_VENDOR_SPECIFIC && 316 pos[1] >= 4 && 317 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 && 318 pos[5] == 0x04); 319 } 320 321 static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies, 322 size_t ies_len) 323 { 324 struct ath6kl *ar = vif->ar; 325 const u8 *pos; 326 u8 *buf = NULL; 327 size_t len = 0; 328 int ret; 329 330 /* 331 * Clear previously set flag 332 */ 333 334 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; 335 336 /* 337 * Filter out RSN/WPA IE(s) 338 */ 339 340 if (ies && ies_len) { 341 buf = kmalloc(ies_len, GFP_KERNEL); 342 if (buf == NULL) 343 return -ENOMEM; 344 pos = ies; 345 346 while (pos + 1 < ies + ies_len) { 347 if (pos + 2 + pos[1] > ies + ies_len) 348 break; 349 if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) { 350 memcpy(buf + len, pos, 2 + pos[1]); 351 len += 2 + pos[1]; 352 } 353 354 if (ath6kl_is_wps_ie(pos)) 355 ar->connect_ctrl_flags |= CONNECT_WPS_FLAG; 356 357 pos += 2 + pos[1]; 358 } 359 } 360 361 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 362 WMI_FRAME_ASSOC_REQ, buf, len); 363 kfree(buf); 364 return ret; 365 } 366 367 static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type) 368 { 369 switch (type) { 370 case NL80211_IFTYPE_STATION: 371 case NL80211_IFTYPE_P2P_CLIENT: 372 *nw_type = INFRA_NETWORK; 373 break; 374 case NL80211_IFTYPE_ADHOC: 375 *nw_type = ADHOC_NETWORK; 376 break; 377 case NL80211_IFTYPE_AP: 378 case NL80211_IFTYPE_P2P_GO: 379 *nw_type = AP_NETWORK; 380 break; 381 default: 382 ath6kl_err("invalid interface type %u\n", type); 383 return -ENOTSUPP; 384 } 385 386 return 0; 387 } 388 389 static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type, 390 u8 *if_idx, u8 *nw_type) 391 { 392 int i; 393 394 if (ath6kl_nliftype_to_drv_iftype(type, nw_type)) 395 return false; 396 397 if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) && 398 ar->num_vif)) 399 return false; 400 401 if (type == NL80211_IFTYPE_STATION || 402 type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) { 403 for (i = 0; i < ar->vif_max; i++) { 404 if ((ar->avail_idx_map) & BIT(i)) { 405 *if_idx = i; 406 return true; 407 } 408 } 409 } 410 411 if (type == NL80211_IFTYPE_P2P_CLIENT || 412 type == NL80211_IFTYPE_P2P_GO) { 413 for (i = ar->max_norm_iface; i < ar->vif_max; i++) { 414 if ((ar->avail_idx_map) & BIT(i)) { 415 *if_idx = i; 416 return true; 417 } 418 } 419 } 420 421 return false; 422 } 423 424 static bool ath6kl_is_tx_pending(struct ath6kl *ar) 425 { 426 return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0; 427 } 428 429 static void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif, 430 bool enable) 431 { 432 int err; 433 434 if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag))) 435 return; 436 437 if (vif->nw_type != INFRA_NETWORK) 438 return; 439 440 if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE, 441 vif->ar->fw_capabilities)) 442 return; 443 444 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n", 445 enable ? "enable" : "disable"); 446 447 err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi, 448 vif->fw_vif_idx, enable); 449 if (err) 450 ath6kl_err("failed to %s enhanced bmiss detection: %d\n", 451 enable ? "enable" : "disable", err); 452 } 453 454 static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 455 struct cfg80211_connect_params *sme) 456 { 457 struct ath6kl *ar = ath6kl_priv(dev); 458 struct ath6kl_vif *vif = netdev_priv(dev); 459 int status; 460 u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE; 461 u16 interval; 462 463 ath6kl_cfg80211_sscan_disable(vif); 464 465 vif->sme_state = SME_CONNECTING; 466 467 if (!ath6kl_cfg80211_ready(vif)) 468 return -EIO; 469 470 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 471 ath6kl_err("destroy in progress\n"); 472 return -EBUSY; 473 } 474 475 if (test_bit(SKIP_SCAN, &ar->flag) && 476 ((sme->channel && sme->channel->center_freq == 0) || 477 (sme->bssid && is_zero_ether_addr(sme->bssid)))) { 478 ath6kl_err("SkipScan: channel or bssid invalid\n"); 479 return -EINVAL; 480 } 481 482 if (down_interruptible(&ar->sem)) { 483 ath6kl_err("busy, couldn't get access\n"); 484 return -ERESTARTSYS; 485 } 486 487 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 488 ath6kl_err("busy, destroy in progress\n"); 489 up(&ar->sem); 490 return -EBUSY; 491 } 492 493 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) { 494 /* 495 * sleep until the command queue drains 496 */ 497 wait_event_interruptible_timeout(ar->event_wq, 498 ath6kl_is_tx_pending(ar), 499 WMI_TIMEOUT); 500 if (signal_pending(current)) { 501 ath6kl_err("cmd queue drain timeout\n"); 502 up(&ar->sem); 503 return -EINTR; 504 } 505 } 506 507 status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len); 508 if (status) { 509 up(&ar->sem); 510 return status; 511 } 512 513 if (sme->ie == NULL || sme->ie_len == 0) 514 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; 515 516 if (test_bit(CONNECTED, &vif->flags) && 517 vif->ssid_len == sme->ssid_len && 518 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 519 vif->reconnect_flag = true; 520 status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx, 521 vif->req_bssid, 522 vif->ch_hint); 523 524 up(&ar->sem); 525 if (status) { 526 ath6kl_err("wmi_reconnect_cmd failed\n"); 527 return -EIO; 528 } 529 return 0; 530 } else if (vif->ssid_len == sme->ssid_len && 531 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 532 ath6kl_disconnect(vif); 533 } 534 535 memset(vif->ssid, 0, sizeof(vif->ssid)); 536 vif->ssid_len = sme->ssid_len; 537 memcpy(vif->ssid, sme->ssid, sme->ssid_len); 538 539 if (sme->channel) 540 vif->ch_hint = sme->channel->center_freq; 541 542 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 543 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid)) 544 memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid)); 545 546 ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions); 547 548 status = ath6kl_set_auth_type(vif, sme->auth_type); 549 if (status) { 550 up(&ar->sem); 551 return status; 552 } 553 554 if (sme->crypto.n_ciphers_pairwise) 555 ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true); 556 else 557 ath6kl_set_cipher(vif, 0, true); 558 559 ath6kl_set_cipher(vif, sme->crypto.cipher_group, false); 560 561 if (sme->crypto.n_akm_suites) 562 ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]); 563 564 if ((sme->key_len) && 565 (vif->auth_mode == NONE_AUTH) && 566 (vif->prwise_crypto == WEP_CRYPT)) { 567 struct ath6kl_key *key = NULL; 568 569 if (sme->key_idx > WMI_MAX_KEY_INDEX) { 570 ath6kl_err("key index %d out of bounds\n", 571 sme->key_idx); 572 up(&ar->sem); 573 return -ENOENT; 574 } 575 576 key = &vif->keys[sme->key_idx]; 577 key->key_len = sme->key_len; 578 memcpy(key->key, sme->key, key->key_len); 579 key->cipher = vif->prwise_crypto; 580 vif->def_txkey_index = sme->key_idx; 581 582 ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx, 583 vif->prwise_crypto, 584 GROUP_USAGE | TX_USAGE, 585 key->key_len, 586 NULL, 0, 587 key->key, KEY_OP_INIT_VAL, NULL, 588 NO_SYNC_WMIFLAG); 589 } 590 591 if (!ar->usr_bss_filter) { 592 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 593 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 594 ALL_BSS_FILTER, 0) != 0) { 595 ath6kl_err("couldn't set bss filtering\n"); 596 up(&ar->sem); 597 return -EIO; 598 } 599 } 600 601 vif->nw_type = vif->next_mode; 602 603 /* enable enhanced bmiss detection if applicable */ 604 ath6kl_cfg80211_sta_bmiss_enhance(vif, true); 605 606 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) 607 nw_subtype = SUBTYPE_P2PCLIENT; 608 609 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 610 "%s: connect called with authmode %d dot11 auth %d" 611 " PW crypto %d PW crypto len %d GRP crypto %d" 612 " GRP crypto len %d channel hint %u\n", 613 __func__, 614 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 615 vif->prwise_crypto_len, vif->grp_crypto, 616 vif->grp_crypto_len, vif->ch_hint); 617 618 vif->reconnect_flag = 0; 619 620 if (vif->nw_type == INFRA_NETWORK) { 621 interval = max_t(u16, vif->listen_intvl_t, 622 ATH6KL_MAX_WOW_LISTEN_INTL); 623 status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 624 interval, 625 0); 626 if (status) { 627 ath6kl_err("couldn't set listen intervel\n"); 628 up(&ar->sem); 629 return status; 630 } 631 } 632 633 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 634 vif->dot11_auth_mode, vif->auth_mode, 635 vif->prwise_crypto, 636 vif->prwise_crypto_len, 637 vif->grp_crypto, vif->grp_crypto_len, 638 vif->ssid_len, vif->ssid, 639 vif->req_bssid, vif->ch_hint, 640 ar->connect_ctrl_flags, nw_subtype); 641 642 if (sme->bg_scan_period == 0) { 643 /* disable background scan if period is 0 */ 644 sme->bg_scan_period = 0xffff; 645 } else if (sme->bg_scan_period == -1) { 646 /* configure default value if not specified */ 647 sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD; 648 } 649 650 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0, 651 sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 652 653 up(&ar->sem); 654 655 if (status == -EINVAL) { 656 memset(vif->ssid, 0, sizeof(vif->ssid)); 657 vif->ssid_len = 0; 658 ath6kl_err("invalid request\n"); 659 return -ENOENT; 660 } else if (status) { 661 ath6kl_err("ath6kl_wmi_connect_cmd failed\n"); 662 return -EIO; 663 } 664 665 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) && 666 ((vif->auth_mode == WPA_PSK_AUTH) || 667 (vif->auth_mode == WPA2_PSK_AUTH))) { 668 mod_timer(&vif->disconnect_timer, 669 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL)); 670 } 671 672 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD; 673 set_bit(CONNECT_PEND, &vif->flags); 674 675 return 0; 676 } 677 678 static struct cfg80211_bss * 679 ath6kl_add_bss_if_needed(struct ath6kl_vif *vif, 680 enum network_type nw_type, 681 const u8 *bssid, 682 struct ieee80211_channel *chan, 683 const u8 *beacon_ie, 684 size_t beacon_ie_len) 685 { 686 struct ath6kl *ar = vif->ar; 687 struct cfg80211_bss *bss; 688 u16 cap_val; 689 enum ieee80211_bss_type bss_type; 690 u8 *ie; 691 692 if (nw_type & ADHOC_NETWORK) { 693 cap_val = WLAN_CAPABILITY_IBSS; 694 bss_type = IEEE80211_BSS_TYPE_IBSS; 695 } else { 696 cap_val = WLAN_CAPABILITY_ESS; 697 bss_type = IEEE80211_BSS_TYPE_ESS; 698 } 699 700 bss = cfg80211_get_bss(ar->wiphy, chan, bssid, 701 vif->ssid, vif->ssid_len, 702 bss_type, IEEE80211_PRIVACY_ANY); 703 if (bss == NULL) { 704 /* 705 * Since cfg80211 may not yet know about the BSS, 706 * generate a partial entry until the first BSS info 707 * event becomes available. 708 * 709 * Prepend SSID element since it is not included in the Beacon 710 * IEs from the target. 711 */ 712 ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL); 713 if (ie == NULL) 714 return NULL; 715 ie[0] = WLAN_EID_SSID; 716 ie[1] = vif->ssid_len; 717 memcpy(ie + 2, vif->ssid, vif->ssid_len); 718 memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len); 719 bss = cfg80211_inform_bss(ar->wiphy, chan, 720 CFG80211_BSS_FTYPE_UNKNOWN, 721 bssid, 0, cap_val, 100, 722 ie, 2 + vif->ssid_len + beacon_ie_len, 723 0, GFP_KERNEL); 724 if (bss) 725 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 726 "added bss %pM to cfg80211\n", bssid); 727 kfree(ie); 728 } else { 729 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n"); 730 } 731 732 return bss; 733 } 734 735 void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel, 736 u8 *bssid, u16 listen_intvl, 737 u16 beacon_intvl, 738 enum network_type nw_type, 739 u8 beacon_ie_len, u8 assoc_req_len, 740 u8 assoc_resp_len, u8 *assoc_info) 741 { 742 struct ieee80211_channel *chan; 743 struct ath6kl *ar = vif->ar; 744 struct cfg80211_bss *bss; 745 746 /* capinfo + listen interval */ 747 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16); 748 749 /* capinfo + status code + associd */ 750 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16); 751 752 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset; 753 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len + 754 assoc_resp_ie_offset; 755 756 assoc_req_len -= assoc_req_ie_offset; 757 assoc_resp_len -= assoc_resp_ie_offset; 758 759 /* 760 * Store Beacon interval here; DTIM period will be available only once 761 * a Beacon frame from the AP is seen. 762 */ 763 vif->assoc_bss_beacon_int = beacon_intvl; 764 clear_bit(DTIM_PERIOD_AVAIL, &vif->flags); 765 766 if (nw_type & ADHOC_NETWORK) { 767 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { 768 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 769 "%s: ath6k not in ibss mode\n", __func__); 770 return; 771 } 772 } 773 774 if (nw_type & INFRA_NETWORK) { 775 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 776 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 777 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 778 "%s: ath6k not in station mode\n", __func__); 779 return; 780 } 781 } 782 783 chan = ieee80211_get_channel(ar->wiphy, (int) channel); 784 785 bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan, 786 assoc_info, beacon_ie_len); 787 if (!bss) { 788 ath6kl_err("could not add cfg80211 bss entry\n"); 789 return; 790 } 791 792 if (nw_type & ADHOC_NETWORK) { 793 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n", 794 nw_type & ADHOC_CREATOR ? "creator" : "joiner"); 795 cfg80211_ibss_joined(vif->ndev, bssid, chan, GFP_KERNEL); 796 cfg80211_put_bss(ar->wiphy, bss); 797 return; 798 } 799 800 if (vif->sme_state == SME_CONNECTING) { 801 /* inform connect result to cfg80211 */ 802 vif->sme_state = SME_CONNECTED; 803 cfg80211_connect_result(vif->ndev, bssid, 804 assoc_req_ie, assoc_req_len, 805 assoc_resp_ie, assoc_resp_len, 806 WLAN_STATUS_SUCCESS, GFP_KERNEL); 807 cfg80211_put_bss(ar->wiphy, bss); 808 } else if (vif->sme_state == SME_CONNECTED) { 809 /* inform roam event to cfg80211 */ 810 cfg80211_roamed_bss(vif->ndev, bss, assoc_req_ie, assoc_req_len, 811 assoc_resp_ie, assoc_resp_len, GFP_KERNEL); 812 } 813 } 814 815 static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, 816 struct net_device *dev, u16 reason_code) 817 { 818 struct ath6kl *ar = ath6kl_priv(dev); 819 struct ath6kl_vif *vif = netdev_priv(dev); 820 821 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, 822 reason_code); 823 824 ath6kl_cfg80211_sscan_disable(vif); 825 826 if (!ath6kl_cfg80211_ready(vif)) 827 return -EIO; 828 829 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 830 ath6kl_err("busy, destroy in progress\n"); 831 return -EBUSY; 832 } 833 834 if (down_interruptible(&ar->sem)) { 835 ath6kl_err("busy, couldn't get access\n"); 836 return -ERESTARTSYS; 837 } 838 839 vif->reconnect_flag = 0; 840 ath6kl_disconnect(vif); 841 memset(vif->ssid, 0, sizeof(vif->ssid)); 842 vif->ssid_len = 0; 843 844 if (!test_bit(SKIP_SCAN, &ar->flag)) 845 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 846 847 up(&ar->sem); 848 849 return 0; 850 } 851 852 void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason, 853 u8 *bssid, u8 assoc_resp_len, 854 u8 *assoc_info, u16 proto_reason) 855 { 856 struct ath6kl *ar = vif->ar; 857 858 if (vif->scan_req) { 859 struct cfg80211_scan_info info = { 860 .aborted = true, 861 }; 862 863 cfg80211_scan_done(vif->scan_req, &info); 864 vif->scan_req = NULL; 865 } 866 867 if (vif->nw_type & ADHOC_NETWORK) { 868 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) 869 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 870 "%s: ath6k not in ibss mode\n", __func__); 871 return; 872 } 873 874 if (vif->nw_type & INFRA_NETWORK) { 875 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 876 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 877 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 878 "%s: ath6k not in station mode\n", __func__); 879 return; 880 } 881 } 882 883 clear_bit(CONNECT_PEND, &vif->flags); 884 885 if (vif->sme_state == SME_CONNECTING) { 886 cfg80211_connect_result(vif->ndev, 887 bssid, NULL, 0, 888 NULL, 0, 889 WLAN_STATUS_UNSPECIFIED_FAILURE, 890 GFP_KERNEL); 891 } else if (vif->sme_state == SME_CONNECTED) { 892 cfg80211_disconnected(vif->ndev, proto_reason, 893 NULL, 0, false, GFP_KERNEL); 894 } 895 896 vif->sme_state = SME_DISCONNECTED; 897 898 /* 899 * Send a disconnect command to target when a disconnect event is 900 * received with reason code other than 3 (DISCONNECT_CMD - disconnect 901 * request from host) to make the firmware stop trying to connect even 902 * after giving disconnect event. There will be one more disconnect 903 * event for this disconnect command with reason code DISCONNECT_CMD 904 * which won't be notified to cfg80211. 905 */ 906 if (reason != DISCONNECT_CMD) 907 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 908 } 909 910 static int ath6kl_set_probed_ssids(struct ath6kl *ar, 911 struct ath6kl_vif *vif, 912 struct cfg80211_ssid *ssids, int n_ssids, 913 struct cfg80211_match_set *match_set, 914 int n_match_ssid) 915 { 916 u8 i, j, index_to_add, ssid_found = false; 917 struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS]; 918 919 memset(ssid_list, 0, sizeof(ssid_list)); 920 921 if (n_ssids > MAX_PROBED_SSIDS || 922 n_match_ssid > MAX_PROBED_SSIDS) 923 return -EINVAL; 924 925 for (i = 0; i < n_ssids; i++) { 926 memcpy(ssid_list[i].ssid.ssid, 927 ssids[i].ssid, 928 ssids[i].ssid_len); 929 ssid_list[i].ssid.ssid_len = ssids[i].ssid_len; 930 931 if (ssids[i].ssid_len) 932 ssid_list[i].flag = SPECIFIC_SSID_FLAG; 933 else 934 ssid_list[i].flag = ANY_SSID_FLAG; 935 936 if (n_match_ssid == 0) 937 ssid_list[i].flag |= MATCH_SSID_FLAG; 938 } 939 940 index_to_add = i; 941 942 for (i = 0; i < n_match_ssid; i++) { 943 ssid_found = false; 944 945 for (j = 0; j < n_ssids; j++) { 946 if ((match_set[i].ssid.ssid_len == 947 ssid_list[j].ssid.ssid_len) && 948 (!memcmp(ssid_list[j].ssid.ssid, 949 match_set[i].ssid.ssid, 950 match_set[i].ssid.ssid_len))) { 951 ssid_list[j].flag |= MATCH_SSID_FLAG; 952 ssid_found = true; 953 break; 954 } 955 } 956 957 if (ssid_found) 958 continue; 959 960 if (index_to_add >= MAX_PROBED_SSIDS) 961 continue; 962 963 ssid_list[index_to_add].ssid.ssid_len = 964 match_set[i].ssid.ssid_len; 965 memcpy(ssid_list[index_to_add].ssid.ssid, 966 match_set[i].ssid.ssid, 967 match_set[i].ssid.ssid_len); 968 ssid_list[index_to_add].flag |= MATCH_SSID_FLAG; 969 index_to_add++; 970 } 971 972 for (i = 0; i < index_to_add; i++) { 973 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 974 ssid_list[i].flag, 975 ssid_list[i].ssid.ssid_len, 976 ssid_list[i].ssid.ssid); 977 } 978 979 /* Make sure no old entries are left behind */ 980 for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) { 981 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 982 DISABLE_SSID_FLAG, 0, NULL); 983 } 984 985 return 0; 986 } 987 988 static int ath6kl_cfg80211_scan(struct wiphy *wiphy, 989 struct cfg80211_scan_request *request) 990 { 991 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev); 992 struct ath6kl *ar = ath6kl_priv(vif->ndev); 993 s8 n_channels = 0; 994 u16 *channels = NULL; 995 int ret = 0; 996 u32 force_fg_scan = 0; 997 998 if (!ath6kl_cfg80211_ready(vif)) 999 return -EIO; 1000 1001 ath6kl_cfg80211_sscan_disable(vif); 1002 1003 if (!ar->usr_bss_filter) { 1004 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 1005 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 1006 ALL_BSS_FILTER, 0); 1007 if (ret) { 1008 ath6kl_err("couldn't set bss filtering\n"); 1009 return ret; 1010 } 1011 } 1012 1013 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 1014 request->n_ssids, NULL, 0); 1015 if (ret < 0) 1016 return ret; 1017 1018 /* this also clears IE in fw if it's not set */ 1019 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 1020 WMI_FRAME_PROBE_REQ, 1021 request->ie, request->ie_len); 1022 if (ret) { 1023 ath6kl_err("failed to set Probe Request appie for scan\n"); 1024 return ret; 1025 } 1026 1027 /* 1028 * Scan only the requested channels if the request specifies a set of 1029 * channels. If the list is longer than the target supports, do not 1030 * configure the list and instead, scan all available channels. 1031 */ 1032 if (request->n_channels > 0 && 1033 request->n_channels <= WMI_MAX_CHANNELS) { 1034 u8 i; 1035 1036 n_channels = request->n_channels; 1037 1038 channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL); 1039 if (channels == NULL) { 1040 ath6kl_warn("failed to set scan channels, scan all channels"); 1041 n_channels = 0; 1042 } 1043 1044 for (i = 0; i < n_channels; i++) 1045 channels[i] = request->channels[i]->center_freq; 1046 } 1047 1048 if (test_bit(CONNECTED, &vif->flags)) 1049 force_fg_scan = 1; 1050 1051 vif->scan_req = request; 1052 1053 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx, 1054 WMI_LONG_SCAN, force_fg_scan, 1055 false, 0, 1056 ATH6KL_FG_SCAN_INTERVAL, 1057 n_channels, channels, 1058 request->no_cck, 1059 request->rates); 1060 if (ret) { 1061 ath6kl_err("failed to start scan: %d\n", ret); 1062 vif->scan_req = NULL; 1063 } 1064 1065 kfree(channels); 1066 1067 return ret; 1068 } 1069 1070 void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted) 1071 { 1072 struct ath6kl *ar = vif->ar; 1073 struct cfg80211_scan_info info = { 1074 .aborted = aborted, 1075 }; 1076 int i; 1077 1078 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__, 1079 aborted ? " aborted" : ""); 1080 1081 if (!vif->scan_req) 1082 return; 1083 1084 if (aborted) 1085 goto out; 1086 1087 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) { 1088 for (i = 0; i < vif->scan_req->n_ssids; i++) { 1089 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, 1090 i + 1, DISABLE_SSID_FLAG, 1091 0, NULL); 1092 } 1093 } 1094 1095 out: 1096 cfg80211_scan_done(vif->scan_req, &info); 1097 vif->scan_req = NULL; 1098 } 1099 1100 void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq, 1101 enum wmi_phy_mode mode) 1102 { 1103 struct cfg80211_chan_def chandef; 1104 1105 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1106 "channel switch notify nw_type %d freq %d mode %d\n", 1107 vif->nw_type, freq, mode); 1108 1109 cfg80211_chandef_create(&chandef, 1110 ieee80211_get_channel(vif->ar->wiphy, freq), 1111 (mode == WMI_11G_HT20 && 1112 ath6kl_band_2ghz.ht_cap.ht_supported) ? 1113 NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT); 1114 1115 mutex_lock(&vif->wdev.mtx); 1116 cfg80211_ch_switch_notify(vif->ndev, &chandef); 1117 mutex_unlock(&vif->wdev.mtx); 1118 } 1119 1120 static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, 1121 u8 key_index, bool pairwise, 1122 const u8 *mac_addr, 1123 struct key_params *params) 1124 { 1125 struct ath6kl *ar = ath6kl_priv(ndev); 1126 struct ath6kl_vif *vif = netdev_priv(ndev); 1127 struct ath6kl_key *key = NULL; 1128 int seq_len; 1129 u8 key_usage; 1130 u8 key_type; 1131 1132 if (!ath6kl_cfg80211_ready(vif)) 1133 return -EIO; 1134 1135 if (params->cipher == CCKM_KRK_CIPHER_SUITE) { 1136 if (params->key_len != WMI_KRK_LEN) 1137 return -EINVAL; 1138 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx, 1139 params->key); 1140 } 1141 1142 if (key_index > WMI_MAX_KEY_INDEX) { 1143 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1144 "%s: key index %d out of bounds\n", __func__, 1145 key_index); 1146 return -ENOENT; 1147 } 1148 1149 key = &vif->keys[key_index]; 1150 memset(key, 0, sizeof(struct ath6kl_key)); 1151 1152 if (pairwise) 1153 key_usage = PAIRWISE_USAGE; 1154 else 1155 key_usage = GROUP_USAGE; 1156 1157 seq_len = params->seq_len; 1158 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 && 1159 seq_len > ATH6KL_KEY_SEQ_LEN) { 1160 /* Only first half of the WPI PN is configured */ 1161 seq_len = ATH6KL_KEY_SEQ_LEN; 1162 } 1163 if (params->key_len > WLAN_MAX_KEY_LEN || 1164 seq_len > sizeof(key->seq)) 1165 return -EINVAL; 1166 1167 key->key_len = params->key_len; 1168 memcpy(key->key, params->key, key->key_len); 1169 key->seq_len = seq_len; 1170 memcpy(key->seq, params->seq, key->seq_len); 1171 key->cipher = params->cipher; 1172 1173 switch (key->cipher) { 1174 case WLAN_CIPHER_SUITE_WEP40: 1175 case WLAN_CIPHER_SUITE_WEP104: 1176 key_type = WEP_CRYPT; 1177 break; 1178 1179 case WLAN_CIPHER_SUITE_TKIP: 1180 key_type = TKIP_CRYPT; 1181 break; 1182 1183 case WLAN_CIPHER_SUITE_CCMP: 1184 key_type = AES_CRYPT; 1185 break; 1186 case WLAN_CIPHER_SUITE_SMS4: 1187 key_type = WAPI_CRYPT; 1188 break; 1189 1190 default: 1191 return -ENOTSUPP; 1192 } 1193 1194 if (((vif->auth_mode == WPA_PSK_AUTH) || 1195 (vif->auth_mode == WPA2_PSK_AUTH)) && 1196 (key_usage & GROUP_USAGE)) 1197 del_timer(&vif->disconnect_timer); 1198 1199 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1200 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", 1201 __func__, key_index, key->key_len, key_type, 1202 key_usage, key->seq_len); 1203 1204 if (vif->nw_type == AP_NETWORK && !pairwise && 1205 (key_type == TKIP_CRYPT || key_type == AES_CRYPT || 1206 key_type == WAPI_CRYPT)) { 1207 ar->ap_mode_bkey.valid = true; 1208 ar->ap_mode_bkey.key_index = key_index; 1209 ar->ap_mode_bkey.key_type = key_type; 1210 ar->ap_mode_bkey.key_len = key->key_len; 1211 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len); 1212 if (!test_bit(CONNECTED, &vif->flags)) { 1213 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1214 "Delay initial group key configuration until AP mode has been started\n"); 1215 /* 1216 * The key will be set in ath6kl_connect_ap_mode() once 1217 * the connected event is received from the target. 1218 */ 1219 return 0; 1220 } 1221 } 1222 1223 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT && 1224 !test_bit(CONNECTED, &vif->flags)) { 1225 /* 1226 * Store the key locally so that it can be re-configured after 1227 * the AP mode has properly started 1228 * (ath6kl_install_statioc_wep_keys). 1229 */ 1230 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1231 "Delay WEP key configuration until AP mode has been started\n"); 1232 vif->wep_key_list[key_index].key_len = key->key_len; 1233 memcpy(vif->wep_key_list[key_index].key, key->key, 1234 key->key_len); 1235 return 0; 1236 } 1237 1238 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index, 1239 key_type, key_usage, key->key_len, 1240 key->seq, key->seq_len, key->key, 1241 KEY_OP_INIT_VAL, 1242 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); 1243 } 1244 1245 static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, 1246 u8 key_index, bool pairwise, 1247 const u8 *mac_addr) 1248 { 1249 struct ath6kl *ar = ath6kl_priv(ndev); 1250 struct ath6kl_vif *vif = netdev_priv(ndev); 1251 1252 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1253 1254 if (!ath6kl_cfg80211_ready(vif)) 1255 return -EIO; 1256 1257 if (key_index > WMI_MAX_KEY_INDEX) { 1258 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1259 "%s: key index %d out of bounds\n", __func__, 1260 key_index); 1261 return -ENOENT; 1262 } 1263 1264 if (!vif->keys[key_index].key_len) { 1265 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1266 "%s: index %d is empty\n", __func__, key_index); 1267 return 0; 1268 } 1269 1270 vif->keys[key_index].key_len = 0; 1271 1272 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index); 1273 } 1274 1275 static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, 1276 u8 key_index, bool pairwise, 1277 const u8 *mac_addr, void *cookie, 1278 void (*callback) (void *cookie, 1279 struct key_params *)) 1280 { 1281 struct ath6kl_vif *vif = netdev_priv(ndev); 1282 struct ath6kl_key *key = NULL; 1283 struct key_params params; 1284 1285 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1286 1287 if (!ath6kl_cfg80211_ready(vif)) 1288 return -EIO; 1289 1290 if (key_index > WMI_MAX_KEY_INDEX) { 1291 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1292 "%s: key index %d out of bounds\n", __func__, 1293 key_index); 1294 return -ENOENT; 1295 } 1296 1297 key = &vif->keys[key_index]; 1298 memset(¶ms, 0, sizeof(params)); 1299 params.cipher = key->cipher; 1300 params.key_len = key->key_len; 1301 params.seq_len = key->seq_len; 1302 params.seq = key->seq; 1303 params.key = key->key; 1304 1305 callback(cookie, ¶ms); 1306 1307 return key->key_len ? 0 : -ENOENT; 1308 } 1309 1310 static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, 1311 struct net_device *ndev, 1312 u8 key_index, bool unicast, 1313 bool multicast) 1314 { 1315 struct ath6kl *ar = ath6kl_priv(ndev); 1316 struct ath6kl_vif *vif = netdev_priv(ndev); 1317 struct ath6kl_key *key = NULL; 1318 u8 key_usage; 1319 enum crypto_type key_type = NONE_CRYPT; 1320 1321 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1322 1323 if (!ath6kl_cfg80211_ready(vif)) 1324 return -EIO; 1325 1326 if (key_index > WMI_MAX_KEY_INDEX) { 1327 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1328 "%s: key index %d out of bounds\n", 1329 __func__, key_index); 1330 return -ENOENT; 1331 } 1332 1333 if (!vif->keys[key_index].key_len) { 1334 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", 1335 __func__, key_index); 1336 return -EINVAL; 1337 } 1338 1339 vif->def_txkey_index = key_index; 1340 key = &vif->keys[vif->def_txkey_index]; 1341 key_usage = GROUP_USAGE; 1342 if (vif->prwise_crypto == WEP_CRYPT) 1343 key_usage |= TX_USAGE; 1344 if (unicast) 1345 key_type = vif->prwise_crypto; 1346 if (multicast) 1347 key_type = vif->grp_crypto; 1348 1349 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags)) 1350 return 0; /* Delay until AP mode has been started */ 1351 1352 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, 1353 vif->def_txkey_index, 1354 key_type, key_usage, 1355 key->key_len, key->seq, key->seq_len, 1356 key->key, 1357 KEY_OP_INIT_VAL, NULL, 1358 SYNC_BOTH_WMIFLAG); 1359 } 1360 1361 void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, 1362 bool ismcast) 1363 { 1364 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1365 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); 1366 1367 cfg80211_michael_mic_failure(vif->ndev, vif->bssid, 1368 (ismcast ? NL80211_KEYTYPE_GROUP : 1369 NL80211_KEYTYPE_PAIRWISE), keyid, NULL, 1370 GFP_KERNEL); 1371 } 1372 1373 static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 1374 { 1375 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1376 struct ath6kl_vif *vif; 1377 int ret; 1378 1379 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, 1380 changed); 1381 1382 vif = ath6kl_vif_first(ar); 1383 if (!vif) 1384 return -EIO; 1385 1386 if (!ath6kl_cfg80211_ready(vif)) 1387 return -EIO; 1388 1389 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 1390 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold); 1391 if (ret != 0) { 1392 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n"); 1393 return -EIO; 1394 } 1395 } 1396 1397 return 0; 1398 } 1399 1400 static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, 1401 struct wireless_dev *wdev, 1402 enum nl80211_tx_power_setting type, 1403 int mbm) 1404 { 1405 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1406 struct ath6kl_vif *vif; 1407 int dbm = MBM_TO_DBM(mbm); 1408 1409 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, 1410 type, dbm); 1411 1412 vif = ath6kl_vif_first(ar); 1413 if (!vif) 1414 return -EIO; 1415 1416 if (!ath6kl_cfg80211_ready(vif)) 1417 return -EIO; 1418 1419 switch (type) { 1420 case NL80211_TX_POWER_AUTOMATIC: 1421 return 0; 1422 case NL80211_TX_POWER_LIMITED: 1423 ar->tx_pwr = dbm; 1424 break; 1425 default: 1426 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n", 1427 __func__, type); 1428 return -EOPNOTSUPP; 1429 } 1430 1431 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm); 1432 1433 return 0; 1434 } 1435 1436 static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, 1437 struct wireless_dev *wdev, 1438 int *dbm) 1439 { 1440 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1441 struct ath6kl_vif *vif; 1442 1443 vif = ath6kl_vif_first(ar); 1444 if (!vif) 1445 return -EIO; 1446 1447 if (!ath6kl_cfg80211_ready(vif)) 1448 return -EIO; 1449 1450 if (test_bit(CONNECTED, &vif->flags)) { 1451 ar->tx_pwr = 255; 1452 1453 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) { 1454 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); 1455 return -EIO; 1456 } 1457 1458 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 255, 1459 5 * HZ); 1460 1461 if (signal_pending(current)) { 1462 ath6kl_err("target did not respond\n"); 1463 return -EINTR; 1464 } 1465 } 1466 1467 *dbm = ar->tx_pwr; 1468 return 0; 1469 } 1470 1471 static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, 1472 struct net_device *dev, 1473 bool pmgmt, int timeout) 1474 { 1475 struct ath6kl *ar = ath6kl_priv(dev); 1476 struct wmi_power_mode_cmd mode; 1477 struct ath6kl_vif *vif = netdev_priv(dev); 1478 1479 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", 1480 __func__, pmgmt, timeout); 1481 1482 if (!ath6kl_cfg80211_ready(vif)) 1483 return -EIO; 1484 1485 if (pmgmt) { 1486 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); 1487 mode.pwr_mode = REC_POWER; 1488 } else { 1489 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); 1490 mode.pwr_mode = MAX_PERF_POWER; 1491 } 1492 1493 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx, 1494 mode.pwr_mode) != 0) { 1495 ath6kl_err("wmi_powermode_cmd failed\n"); 1496 return -EIO; 1497 } 1498 1499 return 0; 1500 } 1501 1502 static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy, 1503 const char *name, 1504 unsigned char name_assign_type, 1505 enum nl80211_iftype type, 1506 struct vif_params *params) 1507 { 1508 struct ath6kl *ar = wiphy_priv(wiphy); 1509 struct wireless_dev *wdev; 1510 u8 if_idx, nw_type; 1511 1512 if (ar->num_vif == ar->vif_max) { 1513 ath6kl_err("Reached maximum number of supported vif\n"); 1514 return ERR_PTR(-EINVAL); 1515 } 1516 1517 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) { 1518 ath6kl_err("Not a supported interface type\n"); 1519 return ERR_PTR(-EINVAL); 1520 } 1521 1522 wdev = ath6kl_interface_add(ar, name, name_assign_type, type, if_idx, nw_type); 1523 if (!wdev) 1524 return ERR_PTR(-ENOMEM); 1525 1526 ar->num_vif++; 1527 1528 return wdev; 1529 } 1530 1531 static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy, 1532 struct wireless_dev *wdev) 1533 { 1534 struct ath6kl *ar = wiphy_priv(wiphy); 1535 struct ath6kl_vif *vif = netdev_priv(wdev->netdev); 1536 1537 spin_lock_bh(&ar->list_lock); 1538 list_del(&vif->list); 1539 spin_unlock_bh(&ar->list_lock); 1540 1541 ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag)); 1542 1543 rtnl_lock(); 1544 ath6kl_cfg80211_vif_cleanup(vif); 1545 rtnl_unlock(); 1546 1547 return 0; 1548 } 1549 1550 static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, 1551 struct net_device *ndev, 1552 enum nl80211_iftype type, 1553 struct vif_params *params) 1554 { 1555 struct ath6kl_vif *vif = netdev_priv(ndev); 1556 int i; 1557 1558 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); 1559 1560 /* 1561 * Don't bring up p2p on an interface which is not initialized 1562 * for p2p operation where fw does not have capability to switch 1563 * dynamically between non-p2p and p2p type interface. 1564 */ 1565 if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, 1566 vif->ar->fw_capabilities) && 1567 (type == NL80211_IFTYPE_P2P_CLIENT || 1568 type == NL80211_IFTYPE_P2P_GO)) { 1569 if (vif->ar->vif_max == 1) { 1570 if (vif->fw_vif_idx != 0) 1571 return -EINVAL; 1572 else 1573 goto set_iface_type; 1574 } 1575 1576 for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) { 1577 if (i == vif->fw_vif_idx) 1578 break; 1579 } 1580 1581 if (i == vif->ar->vif_max) { 1582 ath6kl_err("Invalid interface to bring up P2P\n"); 1583 return -EINVAL; 1584 } 1585 } 1586 1587 /* need to clean up enhanced bmiss detection fw state */ 1588 ath6kl_cfg80211_sta_bmiss_enhance(vif, false); 1589 1590 set_iface_type: 1591 switch (type) { 1592 case NL80211_IFTYPE_STATION: 1593 case NL80211_IFTYPE_P2P_CLIENT: 1594 vif->next_mode = INFRA_NETWORK; 1595 break; 1596 case NL80211_IFTYPE_ADHOC: 1597 vif->next_mode = ADHOC_NETWORK; 1598 break; 1599 case NL80211_IFTYPE_AP: 1600 case NL80211_IFTYPE_P2P_GO: 1601 vif->next_mode = AP_NETWORK; 1602 break; 1603 default: 1604 ath6kl_err("invalid interface type %u\n", type); 1605 return -EOPNOTSUPP; 1606 } 1607 1608 vif->wdev.iftype = type; 1609 1610 return 0; 1611 } 1612 1613 static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, 1614 struct net_device *dev, 1615 struct cfg80211_ibss_params *ibss_param) 1616 { 1617 struct ath6kl *ar = ath6kl_priv(dev); 1618 struct ath6kl_vif *vif = netdev_priv(dev); 1619 int status; 1620 1621 if (!ath6kl_cfg80211_ready(vif)) 1622 return -EIO; 1623 1624 vif->ssid_len = ibss_param->ssid_len; 1625 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len); 1626 1627 if (ibss_param->chandef.chan) 1628 vif->ch_hint = ibss_param->chandef.chan->center_freq; 1629 1630 if (ibss_param->channel_fixed) { 1631 /* 1632 * TODO: channel_fixed: The channel should be fixed, do not 1633 * search for IBSSs to join on other channels. Target 1634 * firmware does not support this feature, needs to be 1635 * updated. 1636 */ 1637 return -EOPNOTSUPP; 1638 } 1639 1640 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 1641 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) 1642 memcpy(vif->req_bssid, ibss_param->bssid, 1643 sizeof(vif->req_bssid)); 1644 1645 ath6kl_set_wpa_version(vif, 0); 1646 1647 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM); 1648 if (status) 1649 return status; 1650 1651 if (ibss_param->privacy) { 1652 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true); 1653 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false); 1654 } else { 1655 ath6kl_set_cipher(vif, 0, true); 1656 ath6kl_set_cipher(vif, 0, false); 1657 } 1658 1659 vif->nw_type = vif->next_mode; 1660 1661 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1662 "%s: connect called with authmode %d dot11 auth %d" 1663 " PW crypto %d PW crypto len %d GRP crypto %d" 1664 " GRP crypto len %d channel hint %u\n", 1665 __func__, 1666 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 1667 vif->prwise_crypto_len, vif->grp_crypto, 1668 vif->grp_crypto_len, vif->ch_hint); 1669 1670 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 1671 vif->dot11_auth_mode, vif->auth_mode, 1672 vif->prwise_crypto, 1673 vif->prwise_crypto_len, 1674 vif->grp_crypto, vif->grp_crypto_len, 1675 vif->ssid_len, vif->ssid, 1676 vif->req_bssid, vif->ch_hint, 1677 ar->connect_ctrl_flags, SUBTYPE_NONE); 1678 set_bit(CONNECT_PEND, &vif->flags); 1679 1680 return 0; 1681 } 1682 1683 static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, 1684 struct net_device *dev) 1685 { 1686 struct ath6kl_vif *vif = netdev_priv(dev); 1687 1688 if (!ath6kl_cfg80211_ready(vif)) 1689 return -EIO; 1690 1691 ath6kl_disconnect(vif); 1692 memset(vif->ssid, 0, sizeof(vif->ssid)); 1693 vif->ssid_len = 0; 1694 1695 return 0; 1696 } 1697 1698 static const u32 cipher_suites[] = { 1699 WLAN_CIPHER_SUITE_WEP40, 1700 WLAN_CIPHER_SUITE_WEP104, 1701 WLAN_CIPHER_SUITE_TKIP, 1702 WLAN_CIPHER_SUITE_CCMP, 1703 CCKM_KRK_CIPHER_SUITE, 1704 WLAN_CIPHER_SUITE_SMS4, 1705 }; 1706 1707 static bool is_rate_legacy(s32 rate) 1708 { 1709 static const s32 legacy[] = { 1000, 2000, 5500, 11000, 1710 6000, 9000, 12000, 18000, 24000, 1711 36000, 48000, 54000 1712 }; 1713 u8 i; 1714 1715 for (i = 0; i < ARRAY_SIZE(legacy); i++) 1716 if (rate == legacy[i]) 1717 return true; 1718 1719 return false; 1720 } 1721 1722 static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi) 1723 { 1724 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000, 1725 52000, 58500, 65000, 72200 1726 }; 1727 u8 i; 1728 1729 for (i = 0; i < ARRAY_SIZE(ht20); i++) { 1730 if (rate == ht20[i]) { 1731 if (i == ARRAY_SIZE(ht20) - 1) 1732 /* last rate uses sgi */ 1733 *sgi = true; 1734 else 1735 *sgi = false; 1736 1737 *mcs = i; 1738 return true; 1739 } 1740 } 1741 return false; 1742 } 1743 1744 static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi) 1745 { 1746 static const s32 ht40[] = { 13500, 27000, 40500, 54000, 1747 81000, 108000, 121500, 135000, 1748 150000 1749 }; 1750 u8 i; 1751 1752 for (i = 0; i < ARRAY_SIZE(ht40); i++) { 1753 if (rate == ht40[i]) { 1754 if (i == ARRAY_SIZE(ht40) - 1) 1755 /* last rate uses sgi */ 1756 *sgi = true; 1757 else 1758 *sgi = false; 1759 1760 *mcs = i; 1761 return true; 1762 } 1763 } 1764 1765 return false; 1766 } 1767 1768 static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, 1769 const u8 *mac, struct station_info *sinfo) 1770 { 1771 struct ath6kl *ar = ath6kl_priv(dev); 1772 struct ath6kl_vif *vif = netdev_priv(dev); 1773 long left; 1774 bool sgi; 1775 s32 rate; 1776 int ret; 1777 u8 mcs; 1778 1779 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0) 1780 return -ENOENT; 1781 1782 if (down_interruptible(&ar->sem)) 1783 return -EBUSY; 1784 1785 set_bit(STATS_UPDATE_PEND, &vif->flags); 1786 1787 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx); 1788 1789 if (ret != 0) { 1790 up(&ar->sem); 1791 return -EIO; 1792 } 1793 1794 left = wait_event_interruptible_timeout(ar->event_wq, 1795 !test_bit(STATS_UPDATE_PEND, 1796 &vif->flags), 1797 WMI_TIMEOUT); 1798 1799 up(&ar->sem); 1800 1801 if (left == 0) 1802 return -ETIMEDOUT; 1803 else if (left < 0) 1804 return left; 1805 1806 if (vif->target_stats.rx_byte) { 1807 sinfo->rx_bytes = vif->target_stats.rx_byte; 1808 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BYTES64); 1809 sinfo->rx_packets = vif->target_stats.rx_pkt; 1810 sinfo->filled |= BIT(NL80211_STA_INFO_RX_PACKETS); 1811 } 1812 1813 if (vif->target_stats.tx_byte) { 1814 sinfo->tx_bytes = vif->target_stats.tx_byte; 1815 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BYTES64); 1816 sinfo->tx_packets = vif->target_stats.tx_pkt; 1817 sinfo->filled |= BIT(NL80211_STA_INFO_TX_PACKETS); 1818 } 1819 1820 sinfo->signal = vif->target_stats.cs_rssi; 1821 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL); 1822 1823 rate = vif->target_stats.tx_ucast_rate; 1824 1825 if (is_rate_legacy(rate)) { 1826 sinfo->txrate.legacy = rate / 100; 1827 } else if (is_rate_ht20(rate, &mcs, &sgi)) { 1828 if (sgi) { 1829 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1830 sinfo->txrate.mcs = mcs - 1; 1831 } else { 1832 sinfo->txrate.mcs = mcs; 1833 } 1834 1835 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1836 sinfo->txrate.bw = RATE_INFO_BW_20; 1837 } else if (is_rate_ht40(rate, &mcs, &sgi)) { 1838 if (sgi) { 1839 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1840 sinfo->txrate.mcs = mcs - 1; 1841 } else { 1842 sinfo->txrate.mcs = mcs; 1843 } 1844 1845 sinfo->txrate.bw = RATE_INFO_BW_40; 1846 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1847 } else { 1848 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1849 "invalid rate from stats: %d\n", rate); 1850 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE); 1851 return 0; 1852 } 1853 1854 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE); 1855 1856 if (test_bit(CONNECTED, &vif->flags) && 1857 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) && 1858 vif->nw_type == INFRA_NETWORK) { 1859 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM); 1860 sinfo->bss_param.flags = 0; 1861 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period; 1862 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int; 1863 } 1864 1865 return 0; 1866 } 1867 1868 static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1869 struct cfg80211_pmksa *pmksa) 1870 { 1871 struct ath6kl *ar = ath6kl_priv(netdev); 1872 struct ath6kl_vif *vif = netdev_priv(netdev); 1873 1874 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1875 pmksa->pmkid, true); 1876 } 1877 1878 static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1879 struct cfg80211_pmksa *pmksa) 1880 { 1881 struct ath6kl *ar = ath6kl_priv(netdev); 1882 struct ath6kl_vif *vif = netdev_priv(netdev); 1883 1884 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1885 pmksa->pmkid, false); 1886 } 1887 1888 static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) 1889 { 1890 struct ath6kl *ar = ath6kl_priv(netdev); 1891 struct ath6kl_vif *vif = netdev_priv(netdev); 1892 1893 if (test_bit(CONNECTED, &vif->flags)) 1894 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, 1895 vif->bssid, NULL, false); 1896 return 0; 1897 } 1898 1899 static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif, 1900 struct cfg80211_wowlan *wow, u32 *filter) 1901 { 1902 int ret, pos; 1903 u8 mask[WOW_PATTERN_SIZE]; 1904 u16 i; 1905 1906 /* Configure the patterns that we received from the user. */ 1907 for (i = 0; i < wow->n_patterns; i++) { 1908 /* 1909 * Convert given nl80211 specific mask value to equivalent 1910 * driver specific mask value and send it to the chip along 1911 * with patterns. For example, If the mask value defined in 1912 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010), 1913 * then equivalent driver specific mask value is 1914 * "0xFF 0x00 0xFF 0x00". 1915 */ 1916 memset(&mask, 0, sizeof(mask)); 1917 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) { 1918 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8))) 1919 mask[pos] = 0xFF; 1920 } 1921 /* 1922 * Note: Pattern's offset is not passed as part of wowlan 1923 * parameter from CFG layer. So it's always passed as ZERO 1924 * to the firmware. It means, given WOW patterns are always 1925 * matched from the first byte of received pkt in the firmware. 1926 */ 1927 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1928 vif->fw_vif_idx, WOW_LIST_ID, 1929 wow->patterns[i].pattern_len, 1930 0 /* pattern offset */, 1931 wow->patterns[i].pattern, mask); 1932 if (ret) 1933 return ret; 1934 } 1935 1936 if (wow->disconnect) 1937 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC; 1938 1939 if (wow->magic_pkt) 1940 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET; 1941 1942 if (wow->gtk_rekey_failure) 1943 *filter |= WOW_FILTER_OPTION_GTK_ERROR; 1944 1945 if (wow->eap_identity_req) 1946 *filter |= WOW_FILTER_OPTION_EAP_REQ; 1947 1948 if (wow->four_way_handshake) 1949 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS; 1950 1951 return 0; 1952 } 1953 1954 static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif) 1955 { 1956 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00, 1957 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1958 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1959 0x00, 0x08 }; 1960 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00, 1961 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1962 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1963 0x00, 0x7f }; 1964 u8 unicst_offset = 0; 1965 static const u8 arp_pattern[] = { 0x08, 0x06 }; 1966 static const u8 arp_mask[] = { 0xff, 0xff }; 1967 u8 arp_offset = 20; 1968 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 1969 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 1970 u8 discvr_offset = 38; 1971 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff, 1972 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1973 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 1974 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1975 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1976 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ }; 1977 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff, 1978 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1979 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 1980 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1981 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1982 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ }; 1983 u8 dhcp_offset = 0; 1984 int ret; 1985 1986 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */ 1987 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1988 vif->fw_vif_idx, WOW_LIST_ID, 1989 sizeof(unicst_pattern), unicst_offset, 1990 unicst_pattern, unicst_mask); 1991 if (ret) { 1992 ath6kl_err("failed to add WOW unicast IP pattern\n"); 1993 return ret; 1994 } 1995 1996 /* Setup all ARP pkt pattern */ 1997 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1998 vif->fw_vif_idx, WOW_LIST_ID, 1999 sizeof(arp_pattern), arp_offset, 2000 arp_pattern, arp_mask); 2001 if (ret) { 2002 ath6kl_err("failed to add WOW ARP pattern\n"); 2003 return ret; 2004 } 2005 2006 /* 2007 * Setup multicast pattern for mDNS 224.0.0.251, 2008 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 2009 */ 2010 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2011 vif->fw_vif_idx, WOW_LIST_ID, 2012 sizeof(discvr_pattern), discvr_offset, 2013 discvr_pattern, discvr_mask); 2014 if (ret) { 2015 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 2016 return ret; 2017 } 2018 2019 /* Setup all DHCP broadcast pkt pattern */ 2020 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2021 vif->fw_vif_idx, WOW_LIST_ID, 2022 sizeof(dhcp_pattern), dhcp_offset, 2023 dhcp_pattern, dhcp_mask); 2024 if (ret) { 2025 ath6kl_err("failed to add WOW DHCP broadcast pattern\n"); 2026 return ret; 2027 } 2028 2029 return 0; 2030 } 2031 2032 static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif) 2033 { 2034 struct net_device *ndev = vif->ndev; 2035 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 2036 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 2037 u8 discvr_offset = 38; 2038 u8 mac_mask[ETH_ALEN]; 2039 int ret; 2040 2041 /* Setup unicast pkt pattern */ 2042 eth_broadcast_addr(mac_mask); 2043 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2044 vif->fw_vif_idx, WOW_LIST_ID, 2045 ETH_ALEN, 0, ndev->dev_addr, 2046 mac_mask); 2047 if (ret) { 2048 ath6kl_err("failed to add WOW unicast pattern\n"); 2049 return ret; 2050 } 2051 2052 /* 2053 * Setup multicast pattern for mDNS 224.0.0.251, 2054 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 2055 */ 2056 if ((ndev->flags & IFF_ALLMULTI) || 2057 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) { 2058 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2059 vif->fw_vif_idx, WOW_LIST_ID, 2060 sizeof(discvr_pattern), discvr_offset, 2061 discvr_pattern, discvr_mask); 2062 if (ret) { 2063 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 2064 return ret; 2065 } 2066 } 2067 2068 return 0; 2069 } 2070 2071 static int is_hsleep_mode_procsed(struct ath6kl_vif *vif) 2072 { 2073 return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2074 } 2075 2076 static bool is_ctrl_ep_empty(struct ath6kl *ar) 2077 { 2078 return !ar->tx_pending[ar->ctrl_ep]; 2079 } 2080 2081 static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif) 2082 { 2083 int ret, left; 2084 2085 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2086 2087 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2088 ATH6KL_HOST_MODE_ASLEEP); 2089 if (ret) 2090 return ret; 2091 2092 left = wait_event_interruptible_timeout(ar->event_wq, 2093 is_hsleep_mode_procsed(vif), 2094 WMI_TIMEOUT); 2095 if (left == 0) { 2096 ath6kl_warn("timeout, didn't get host sleep cmd processed event\n"); 2097 ret = -ETIMEDOUT; 2098 } else if (left < 0) { 2099 ath6kl_warn("error while waiting for host sleep cmd processed event %d\n", 2100 left); 2101 ret = left; 2102 } 2103 2104 if (ar->tx_pending[ar->ctrl_ep]) { 2105 left = wait_event_interruptible_timeout(ar->event_wq, 2106 is_ctrl_ep_empty(ar), 2107 WMI_TIMEOUT); 2108 if (left == 0) { 2109 ath6kl_warn("clear wmi ctrl data timeout\n"); 2110 ret = -ETIMEDOUT; 2111 } else if (left < 0) { 2112 ath6kl_warn("clear wmi ctrl data failed: %d\n", left); 2113 ret = left; 2114 } 2115 } 2116 2117 return ret; 2118 } 2119 2120 static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif, 2121 struct cfg80211_wowlan *wow, u32 *filter) 2122 { 2123 struct ath6kl *ar = vif->ar; 2124 struct in_device *in_dev; 2125 struct in_ifaddr *ifa; 2126 int ret; 2127 u16 i, bmiss_time; 2128 __be32 ips[MAX_IP_ADDRS]; 2129 u8 index = 0; 2130 2131 if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) && 2132 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2133 ar->fw_capabilities)) { 2134 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2135 vif->fw_vif_idx, false); 2136 if (ret) 2137 return ret; 2138 } 2139 2140 /* Clear existing WOW patterns */ 2141 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++) 2142 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, 2143 WOW_LIST_ID, i); 2144 2145 /* 2146 * Skip the default WOW pattern configuration 2147 * if the driver receives any WOW patterns from 2148 * the user. 2149 */ 2150 if (wow) 2151 ret = ath6kl_wow_usr(ar, vif, wow, filter); 2152 else if (vif->nw_type == AP_NETWORK) 2153 ret = ath6kl_wow_ap(ar, vif); 2154 else 2155 ret = ath6kl_wow_sta(ar, vif); 2156 2157 if (ret) 2158 return ret; 2159 2160 netif_stop_queue(vif->ndev); 2161 2162 if (vif->nw_type != AP_NETWORK) { 2163 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2164 ATH6KL_MAX_WOW_LISTEN_INTL, 2165 0); 2166 if (ret) 2167 return ret; 2168 2169 /* Set listen interval x 15 times as bmiss time */ 2170 bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15; 2171 if (bmiss_time > ATH6KL_MAX_BMISS_TIME) 2172 bmiss_time = ATH6KL_MAX_BMISS_TIME; 2173 2174 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2175 bmiss_time, 0); 2176 if (ret) 2177 return ret; 2178 2179 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2180 0xFFFF, 0, 0xFFFF, 0, 0, 0, 2181 0, 0, 0, 0); 2182 if (ret) 2183 return ret; 2184 } 2185 2186 /* Setup own IP addr for ARP agent. */ 2187 in_dev = __in_dev_get_rtnl(vif->ndev); 2188 if (!in_dev) 2189 return 0; 2190 2191 ifa = in_dev->ifa_list; 2192 memset(&ips, 0, sizeof(ips)); 2193 2194 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */ 2195 while (index < MAX_IP_ADDRS && ifa) { 2196 ips[index] = ifa->ifa_local; 2197 ifa = ifa->ifa_next; 2198 index++; 2199 } 2200 2201 if (ifa) { 2202 ath6kl_err("total IP addr count is exceeding fw limit\n"); 2203 return -EINVAL; 2204 } 2205 2206 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]); 2207 if (ret) { 2208 ath6kl_err("fail to setup ip for arp agent\n"); 2209 return ret; 2210 } 2211 2212 return ret; 2213 } 2214 2215 static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) 2216 { 2217 struct ath6kl_vif *first_vif, *vif; 2218 int ret = 0; 2219 u32 filter = 0; 2220 bool connected = false; 2221 2222 /* enter / leave wow suspend on first vif always */ 2223 first_vif = ath6kl_vif_first(ar); 2224 if (WARN_ON(!first_vif) || 2225 !ath6kl_cfg80211_ready(first_vif)) 2226 return -EIO; 2227 2228 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST)) 2229 return -EINVAL; 2230 2231 /* install filters for each connected vif */ 2232 spin_lock_bh(&ar->list_lock); 2233 list_for_each_entry(vif, &ar->vif_list, list) { 2234 if (!test_bit(CONNECTED, &vif->flags) || 2235 !ath6kl_cfg80211_ready(vif)) 2236 continue; 2237 connected = true; 2238 2239 ret = ath6kl_wow_suspend_vif(vif, wow, &filter); 2240 if (ret) 2241 break; 2242 } 2243 spin_unlock_bh(&ar->list_lock); 2244 2245 if (!connected) 2246 return -ENOTCONN; 2247 else if (ret) 2248 return ret; 2249 2250 ar->state = ATH6KL_STATE_SUSPENDING; 2251 2252 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx, 2253 ATH6KL_WOW_MODE_ENABLE, 2254 filter, 2255 WOW_HOST_REQ_DELAY); 2256 if (ret) 2257 return ret; 2258 2259 return ath6kl_cfg80211_host_sleep(ar, first_vif); 2260 } 2261 2262 static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif) 2263 { 2264 struct ath6kl *ar = vif->ar; 2265 int ret; 2266 2267 if (vif->nw_type != AP_NETWORK) { 2268 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2269 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2270 if (ret) 2271 return ret; 2272 2273 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2274 vif->listen_intvl_t, 0); 2275 if (ret) 2276 return ret; 2277 2278 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2279 vif->bmiss_time_t, 0); 2280 if (ret) 2281 return ret; 2282 } 2283 2284 if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) && 2285 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2286 ar->fw_capabilities)) { 2287 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2288 vif->fw_vif_idx, true); 2289 if (ret) 2290 return ret; 2291 } 2292 2293 netif_wake_queue(vif->ndev); 2294 2295 return 0; 2296 } 2297 2298 static int ath6kl_wow_resume(struct ath6kl *ar) 2299 { 2300 struct ath6kl_vif *vif; 2301 int ret; 2302 2303 vif = ath6kl_vif_first(ar); 2304 if (WARN_ON(!vif) || 2305 !ath6kl_cfg80211_ready(vif)) 2306 return -EIO; 2307 2308 ar->state = ATH6KL_STATE_RESUMING; 2309 2310 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2311 ATH6KL_HOST_MODE_AWAKE); 2312 if (ret) { 2313 ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n", 2314 ret); 2315 goto cleanup; 2316 } 2317 2318 spin_lock_bh(&ar->list_lock); 2319 list_for_each_entry(vif, &ar->vif_list, list) { 2320 if (!test_bit(CONNECTED, &vif->flags) || 2321 !ath6kl_cfg80211_ready(vif)) 2322 continue; 2323 ret = ath6kl_wow_resume_vif(vif); 2324 if (ret) 2325 break; 2326 } 2327 spin_unlock_bh(&ar->list_lock); 2328 2329 if (ret) 2330 goto cleanup; 2331 2332 ar->state = ATH6KL_STATE_ON; 2333 return 0; 2334 2335 cleanup: 2336 ar->state = ATH6KL_STATE_WOW; 2337 return ret; 2338 } 2339 2340 static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar) 2341 { 2342 struct ath6kl_vif *vif; 2343 int ret; 2344 2345 vif = ath6kl_vif_first(ar); 2346 if (!vif) 2347 return -EIO; 2348 2349 if (!test_bit(WMI_READY, &ar->flag)) { 2350 ath6kl_err("deepsleep failed as wmi is not ready\n"); 2351 return -EIO; 2352 } 2353 2354 ath6kl_cfg80211_stop_all(ar); 2355 2356 /* Save the current power mode before enabling power save */ 2357 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 2358 2359 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER); 2360 if (ret) 2361 return ret; 2362 2363 /* Disable WOW mode */ 2364 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, 2365 ATH6KL_WOW_MODE_DISABLE, 2366 0, 0); 2367 if (ret) 2368 return ret; 2369 2370 /* Flush all non control pkts in TX path */ 2371 ath6kl_tx_data_cleanup(ar); 2372 2373 ret = ath6kl_cfg80211_host_sleep(ar, vif); 2374 if (ret) 2375 return ret; 2376 2377 return 0; 2378 } 2379 2380 static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar) 2381 { 2382 struct ath6kl_vif *vif; 2383 int ret; 2384 2385 vif = ath6kl_vif_first(ar); 2386 2387 if (!vif) 2388 return -EIO; 2389 2390 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) { 2391 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, 2392 ar->wmi->saved_pwr_mode); 2393 if (ret) 2394 return ret; 2395 } 2396 2397 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2398 ATH6KL_HOST_MODE_AWAKE); 2399 if (ret) 2400 return ret; 2401 2402 ar->state = ATH6KL_STATE_ON; 2403 2404 /* Reset scan parameter to default values */ 2405 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2406 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2407 if (ret) 2408 return ret; 2409 2410 return 0; 2411 } 2412 2413 int ath6kl_cfg80211_suspend(struct ath6kl *ar, 2414 enum ath6kl_cfg_suspend_mode mode, 2415 struct cfg80211_wowlan *wow) 2416 { 2417 struct ath6kl_vif *vif; 2418 enum ath6kl_state prev_state; 2419 int ret; 2420 2421 switch (mode) { 2422 case ATH6KL_CFG_SUSPEND_WOW: 2423 2424 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n"); 2425 2426 /* Flush all non control pkts in TX path */ 2427 ath6kl_tx_data_cleanup(ar); 2428 2429 prev_state = ar->state; 2430 2431 ret = ath6kl_wow_suspend(ar, wow); 2432 if (ret) { 2433 ar->state = prev_state; 2434 return ret; 2435 } 2436 2437 ar->state = ATH6KL_STATE_WOW; 2438 break; 2439 2440 case ATH6KL_CFG_SUSPEND_DEEPSLEEP: 2441 2442 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n"); 2443 2444 ret = ath6kl_cfg80211_deepsleep_suspend(ar); 2445 if (ret) { 2446 ath6kl_err("deepsleep suspend failed: %d\n", ret); 2447 return ret; 2448 } 2449 2450 ar->state = ATH6KL_STATE_DEEPSLEEP; 2451 2452 break; 2453 2454 case ATH6KL_CFG_SUSPEND_CUTPOWER: 2455 2456 ath6kl_cfg80211_stop_all(ar); 2457 2458 if (ar->state == ATH6KL_STATE_OFF) { 2459 ath6kl_dbg(ATH6KL_DBG_SUSPEND, 2460 "suspend hw off, no action for cutpower\n"); 2461 break; 2462 } 2463 2464 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n"); 2465 2466 ret = ath6kl_init_hw_stop(ar); 2467 if (ret) { 2468 ath6kl_warn("failed to stop hw during suspend: %d\n", 2469 ret); 2470 } 2471 2472 ar->state = ATH6KL_STATE_CUTPOWER; 2473 2474 break; 2475 2476 default: 2477 break; 2478 } 2479 2480 list_for_each_entry(vif, &ar->vif_list, list) 2481 ath6kl_cfg80211_scan_complete_event(vif, true); 2482 2483 return 0; 2484 } 2485 EXPORT_SYMBOL(ath6kl_cfg80211_suspend); 2486 2487 int ath6kl_cfg80211_resume(struct ath6kl *ar) 2488 { 2489 int ret; 2490 2491 switch (ar->state) { 2492 case ATH6KL_STATE_WOW: 2493 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n"); 2494 2495 ret = ath6kl_wow_resume(ar); 2496 if (ret) { 2497 ath6kl_warn("wow mode resume failed: %d\n", ret); 2498 return ret; 2499 } 2500 2501 break; 2502 2503 case ATH6KL_STATE_DEEPSLEEP: 2504 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n"); 2505 2506 ret = ath6kl_cfg80211_deepsleep_resume(ar); 2507 if (ret) { 2508 ath6kl_warn("deep sleep resume failed: %d\n", ret); 2509 return ret; 2510 } 2511 break; 2512 2513 case ATH6KL_STATE_CUTPOWER: 2514 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n"); 2515 2516 ret = ath6kl_init_hw_start(ar); 2517 if (ret) { 2518 ath6kl_warn("Failed to boot hw in resume: %d\n", ret); 2519 return ret; 2520 } 2521 break; 2522 2523 default: 2524 break; 2525 } 2526 2527 return 0; 2528 } 2529 EXPORT_SYMBOL(ath6kl_cfg80211_resume); 2530 2531 #ifdef CONFIG_PM 2532 2533 /* hif layer decides what suspend mode to use */ 2534 static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy, 2535 struct cfg80211_wowlan *wow) 2536 { 2537 struct ath6kl *ar = wiphy_priv(wiphy); 2538 2539 ath6kl_recovery_suspend(ar); 2540 2541 return ath6kl_hif_suspend(ar, wow); 2542 } 2543 2544 static int __ath6kl_cfg80211_resume(struct wiphy *wiphy) 2545 { 2546 struct ath6kl *ar = wiphy_priv(wiphy); 2547 int err; 2548 2549 err = ath6kl_hif_resume(ar); 2550 if (err) 2551 return err; 2552 2553 ath6kl_recovery_resume(ar); 2554 2555 return 0; 2556 } 2557 2558 /* 2559 * FIXME: WOW suspend mode is selected if the host sdio controller supports 2560 * both sdio irq wake up and keep power. The target pulls sdio data line to 2561 * wake up the host when WOW pattern matches. This causes sdio irq handler 2562 * is being called in the host side which internally hits ath6kl's RX path. 2563 * 2564 * Since sdio interrupt is not disabled, RX path executes even before 2565 * the host executes the actual resume operation from PM module. 2566 * 2567 * In the current scenario, WOW resume should happen before start processing 2568 * any data from the target. So It's required to perform WOW resume in RX path. 2569 * Ideally we should perform WOW resume only in the actual platform 2570 * resume path. This area needs bit rework to avoid WOW resume in RX path. 2571 * 2572 * ath6kl_check_wow_status() is called from ath6kl_rx(). 2573 */ 2574 void ath6kl_check_wow_status(struct ath6kl *ar) 2575 { 2576 if (ar->state == ATH6KL_STATE_SUSPENDING) 2577 return; 2578 2579 if (ar->state == ATH6KL_STATE_WOW) 2580 ath6kl_cfg80211_resume(ar); 2581 } 2582 2583 #else 2584 2585 void ath6kl_check_wow_status(struct ath6kl *ar) 2586 { 2587 } 2588 #endif 2589 2590 static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum nl80211_band band, 2591 bool ht_enable) 2592 { 2593 struct ath6kl_htcap *htcap = &vif->htcap[band]; 2594 2595 if (htcap->ht_enable == ht_enable) 2596 return 0; 2597 2598 if (ht_enable) { 2599 /* Set default ht capabilities */ 2600 htcap->ht_enable = true; 2601 htcap->cap_info = (band == NL80211_BAND_2GHZ) ? 2602 ath6kl_g_htcap : ath6kl_a_htcap; 2603 htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K; 2604 } else /* Disable ht */ 2605 memset(htcap, 0, sizeof(*htcap)); 2606 2607 return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx, 2608 band, htcap); 2609 } 2610 2611 static int ath6kl_restore_htcap(struct ath6kl_vif *vif) 2612 { 2613 struct wiphy *wiphy = vif->ar->wiphy; 2614 int band, ret = 0; 2615 2616 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2617 if (!wiphy->bands[band]) 2618 continue; 2619 2620 ret = ath6kl_set_htcap(vif, band, 2621 wiphy->bands[band]->ht_cap.ht_supported); 2622 if (ret) 2623 return ret; 2624 } 2625 2626 return ret; 2627 } 2628 2629 static bool ath6kl_is_p2p_ie(const u8 *pos) 2630 { 2631 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && 2632 pos[2] == 0x50 && pos[3] == 0x6f && 2633 pos[4] == 0x9a && pos[5] == 0x09; 2634 } 2635 2636 static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif, 2637 const u8 *ies, size_t ies_len) 2638 { 2639 struct ath6kl *ar = vif->ar; 2640 const u8 *pos; 2641 u8 *buf = NULL; 2642 size_t len = 0; 2643 int ret; 2644 2645 /* 2646 * Filter out P2P IE(s) since they will be included depending on 2647 * the Probe Request frame in ath6kl_send_go_probe_resp(). 2648 */ 2649 2650 if (ies && ies_len) { 2651 buf = kmalloc(ies_len, GFP_KERNEL); 2652 if (buf == NULL) 2653 return -ENOMEM; 2654 pos = ies; 2655 while (pos + 1 < ies + ies_len) { 2656 if (pos + 2 + pos[1] > ies + ies_len) 2657 break; 2658 if (!ath6kl_is_p2p_ie(pos)) { 2659 memcpy(buf + len, pos, 2 + pos[1]); 2660 len += 2 + pos[1]; 2661 } 2662 pos += 2 + pos[1]; 2663 } 2664 } 2665 2666 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2667 WMI_FRAME_PROBE_RESP, buf, len); 2668 kfree(buf); 2669 return ret; 2670 } 2671 2672 static int ath6kl_set_ies(struct ath6kl_vif *vif, 2673 struct cfg80211_beacon_data *info) 2674 { 2675 struct ath6kl *ar = vif->ar; 2676 int res; 2677 2678 /* this also clears IE in fw if it's not set */ 2679 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2680 WMI_FRAME_BEACON, 2681 info->beacon_ies, 2682 info->beacon_ies_len); 2683 if (res) 2684 return res; 2685 2686 /* this also clears IE in fw if it's not set */ 2687 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies, 2688 info->proberesp_ies_len); 2689 if (res) 2690 return res; 2691 2692 /* this also clears IE in fw if it's not set */ 2693 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2694 WMI_FRAME_ASSOC_RESP, 2695 info->assocresp_ies, 2696 info->assocresp_ies_len); 2697 if (res) 2698 return res; 2699 2700 return 0; 2701 } 2702 2703 static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon, 2704 u8 *rsn_capab) 2705 { 2706 const u8 *rsn_ie; 2707 size_t rsn_ie_len; 2708 u16 cnt; 2709 2710 if (!beacon->tail) 2711 return -EINVAL; 2712 2713 rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len); 2714 if (!rsn_ie) 2715 return -EINVAL; 2716 2717 rsn_ie_len = *(rsn_ie + 1); 2718 /* skip element id and length */ 2719 rsn_ie += 2; 2720 2721 /* skip version */ 2722 if (rsn_ie_len < 2) 2723 return -EINVAL; 2724 rsn_ie += 2; 2725 rsn_ie_len -= 2; 2726 2727 /* skip group cipher suite */ 2728 if (rsn_ie_len < 4) 2729 return 0; 2730 rsn_ie += 4; 2731 rsn_ie_len -= 4; 2732 2733 /* skip pairwise cipher suite */ 2734 if (rsn_ie_len < 2) 2735 return 0; 2736 cnt = get_unaligned_le16(rsn_ie); 2737 rsn_ie += (2 + cnt * 4); 2738 rsn_ie_len -= (2 + cnt * 4); 2739 2740 /* skip akm suite */ 2741 if (rsn_ie_len < 2) 2742 return 0; 2743 cnt = get_unaligned_le16(rsn_ie); 2744 rsn_ie += (2 + cnt * 4); 2745 rsn_ie_len -= (2 + cnt * 4); 2746 2747 if (rsn_ie_len < 2) 2748 return 0; 2749 2750 memcpy(rsn_capab, rsn_ie, 2); 2751 2752 return 0; 2753 } 2754 2755 static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev, 2756 struct cfg80211_ap_settings *info) 2757 { 2758 struct ath6kl *ar = ath6kl_priv(dev); 2759 struct ath6kl_vif *vif = netdev_priv(dev); 2760 struct ieee80211_mgmt *mgmt; 2761 bool hidden = false; 2762 u8 *ies; 2763 int ies_len; 2764 struct wmi_connect_cmd p; 2765 int res; 2766 int i, ret; 2767 u16 rsn_capab = 0; 2768 int inactivity_timeout = 0; 2769 2770 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__); 2771 2772 if (!ath6kl_cfg80211_ready(vif)) 2773 return -EIO; 2774 2775 if (vif->next_mode != AP_NETWORK) 2776 return -EOPNOTSUPP; 2777 2778 res = ath6kl_set_ies(vif, &info->beacon); 2779 2780 ar->ap_mode_bkey.valid = false; 2781 2782 ret = ath6kl_wmi_ap_set_beacon_intvl_cmd(ar->wmi, vif->fw_vif_idx, 2783 info->beacon_interval); 2784 2785 if (ret) 2786 ath6kl_warn("Failed to set beacon interval: %d\n", ret); 2787 2788 ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx, 2789 info->dtim_period); 2790 2791 /* ignore error, just print a warning and continue normally */ 2792 if (ret) 2793 ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret); 2794 2795 if (info->beacon.head == NULL) 2796 return -EINVAL; 2797 mgmt = (struct ieee80211_mgmt *) info->beacon.head; 2798 ies = mgmt->u.beacon.variable; 2799 if (ies > info->beacon.head + info->beacon.head_len) 2800 return -EINVAL; 2801 ies_len = info->beacon.head + info->beacon.head_len - ies; 2802 2803 if (info->ssid == NULL) 2804 return -EINVAL; 2805 memcpy(vif->ssid, info->ssid, info->ssid_len); 2806 vif->ssid_len = info->ssid_len; 2807 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE) 2808 hidden = true; 2809 2810 res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden); 2811 if (res) 2812 return res; 2813 2814 ret = ath6kl_set_auth_type(vif, info->auth_type); 2815 if (ret) 2816 return ret; 2817 2818 memset(&p, 0, sizeof(p)); 2819 2820 for (i = 0; i < info->crypto.n_akm_suites; i++) { 2821 switch (info->crypto.akm_suites[i]) { 2822 case WLAN_AKM_SUITE_8021X: 2823 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2824 p.auth_mode |= WPA_AUTH; 2825 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2826 p.auth_mode |= WPA2_AUTH; 2827 break; 2828 case WLAN_AKM_SUITE_PSK: 2829 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2830 p.auth_mode |= WPA_PSK_AUTH; 2831 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2832 p.auth_mode |= WPA2_PSK_AUTH; 2833 break; 2834 } 2835 } 2836 if (p.auth_mode == 0) 2837 p.auth_mode = NONE_AUTH; 2838 vif->auth_mode = p.auth_mode; 2839 2840 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) { 2841 switch (info->crypto.ciphers_pairwise[i]) { 2842 case WLAN_CIPHER_SUITE_WEP40: 2843 case WLAN_CIPHER_SUITE_WEP104: 2844 p.prwise_crypto_type |= WEP_CRYPT; 2845 break; 2846 case WLAN_CIPHER_SUITE_TKIP: 2847 p.prwise_crypto_type |= TKIP_CRYPT; 2848 break; 2849 case WLAN_CIPHER_SUITE_CCMP: 2850 p.prwise_crypto_type |= AES_CRYPT; 2851 break; 2852 case WLAN_CIPHER_SUITE_SMS4: 2853 p.prwise_crypto_type |= WAPI_CRYPT; 2854 break; 2855 } 2856 } 2857 if (p.prwise_crypto_type == 0) { 2858 p.prwise_crypto_type = NONE_CRYPT; 2859 ath6kl_set_cipher(vif, 0, true); 2860 } else if (info->crypto.n_ciphers_pairwise == 1) { 2861 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true); 2862 } 2863 2864 switch (info->crypto.cipher_group) { 2865 case WLAN_CIPHER_SUITE_WEP40: 2866 case WLAN_CIPHER_SUITE_WEP104: 2867 p.grp_crypto_type = WEP_CRYPT; 2868 break; 2869 case WLAN_CIPHER_SUITE_TKIP: 2870 p.grp_crypto_type = TKIP_CRYPT; 2871 break; 2872 case WLAN_CIPHER_SUITE_CCMP: 2873 p.grp_crypto_type = AES_CRYPT; 2874 break; 2875 case WLAN_CIPHER_SUITE_SMS4: 2876 p.grp_crypto_type = WAPI_CRYPT; 2877 break; 2878 default: 2879 p.grp_crypto_type = NONE_CRYPT; 2880 break; 2881 } 2882 ath6kl_set_cipher(vif, info->crypto.cipher_group, false); 2883 2884 p.nw_type = AP_NETWORK; 2885 vif->nw_type = vif->next_mode; 2886 2887 p.ssid_len = vif->ssid_len; 2888 memcpy(p.ssid, vif->ssid, vif->ssid_len); 2889 p.dot11_auth_mode = vif->dot11_auth_mode; 2890 p.ch = cpu_to_le16(info->chandef.chan->center_freq); 2891 2892 /* Enable uAPSD support by default */ 2893 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true); 2894 if (res < 0) 2895 return res; 2896 2897 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) { 2898 p.nw_subtype = SUBTYPE_P2PGO; 2899 } else { 2900 /* 2901 * Due to firmware limitation, it is not possible to 2902 * do P2P mgmt operations in AP mode 2903 */ 2904 p.nw_subtype = SUBTYPE_NONE; 2905 } 2906 2907 if (info->inactivity_timeout) { 2908 inactivity_timeout = info->inactivity_timeout; 2909 2910 if (test_bit(ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS, 2911 ar->fw_capabilities)) 2912 inactivity_timeout = DIV_ROUND_UP(inactivity_timeout, 2913 60); 2914 2915 res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx, 2916 inactivity_timeout); 2917 if (res < 0) 2918 return res; 2919 } 2920 2921 if (ath6kl_set_htcap(vif, info->chandef.chan->band, 2922 cfg80211_get_chandef_type(&info->chandef) 2923 != NL80211_CHAN_NO_HT)) 2924 return -EIO; 2925 2926 /* 2927 * Get the PTKSA replay counter in the RSN IE. Supplicant 2928 * will use the RSN IE in M3 message and firmware has to 2929 * advertise the same in beacon/probe response. Send 2930 * the complete RSN IE capability field to firmware 2931 */ 2932 if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) && 2933 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 2934 ar->fw_capabilities)) { 2935 res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx, 2936 WLAN_EID_RSN, WMI_RSN_IE_CAPB, 2937 (const u8 *) &rsn_capab, 2938 sizeof(rsn_capab)); 2939 vif->rsn_capab = rsn_capab; 2940 if (res < 0) 2941 return res; 2942 } 2943 2944 memcpy(&vif->profile, &p, sizeof(p)); 2945 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p); 2946 if (res < 0) 2947 return res; 2948 2949 return 0; 2950 } 2951 2952 static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev, 2953 struct cfg80211_beacon_data *beacon) 2954 { 2955 struct ath6kl_vif *vif = netdev_priv(dev); 2956 2957 if (!ath6kl_cfg80211_ready(vif)) 2958 return -EIO; 2959 2960 if (vif->next_mode != AP_NETWORK) 2961 return -EOPNOTSUPP; 2962 2963 return ath6kl_set_ies(vif, beacon); 2964 } 2965 2966 static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev) 2967 { 2968 struct ath6kl *ar = ath6kl_priv(dev); 2969 struct ath6kl_vif *vif = netdev_priv(dev); 2970 2971 if (vif->nw_type != AP_NETWORK) 2972 return -EOPNOTSUPP; 2973 if (!test_bit(CONNECTED, &vif->flags)) 2974 return -ENOTCONN; 2975 2976 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 2977 clear_bit(CONNECTED, &vif->flags); 2978 netif_carrier_off(vif->ndev); 2979 2980 /* Restore ht setting in firmware */ 2981 return ath6kl_restore_htcap(vif); 2982 } 2983 2984 static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 2985 2986 static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev, 2987 struct station_del_parameters *params) 2988 { 2989 struct ath6kl *ar = ath6kl_priv(dev); 2990 struct ath6kl_vif *vif = netdev_priv(dev); 2991 const u8 *addr = params->mac ? params->mac : bcast_addr; 2992 2993 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH, 2994 addr, WLAN_REASON_PREV_AUTH_NOT_VALID); 2995 } 2996 2997 static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev, 2998 const u8 *mac, 2999 struct station_parameters *params) 3000 { 3001 struct ath6kl *ar = ath6kl_priv(dev); 3002 struct ath6kl_vif *vif = netdev_priv(dev); 3003 int err; 3004 3005 if (vif->nw_type != AP_NETWORK) 3006 return -EOPNOTSUPP; 3007 3008 err = cfg80211_check_station_change(wiphy, params, 3009 CFG80211_STA_AP_MLME_CLIENT); 3010 if (err) 3011 return err; 3012 3013 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 3014 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3015 WMI_AP_MLME_AUTHORIZE, mac, 0); 3016 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3017 WMI_AP_MLME_UNAUTHORIZE, mac, 0); 3018 } 3019 3020 static int ath6kl_remain_on_channel(struct wiphy *wiphy, 3021 struct wireless_dev *wdev, 3022 struct ieee80211_channel *chan, 3023 unsigned int duration, 3024 u64 *cookie) 3025 { 3026 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3027 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3028 u32 id; 3029 3030 /* TODO: if already pending or ongoing remain-on-channel, 3031 * return -EBUSY */ 3032 id = ++vif->last_roc_id; 3033 if (id == 0) { 3034 /* Do not use 0 as the cookie value */ 3035 id = ++vif->last_roc_id; 3036 } 3037 *cookie = id; 3038 3039 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx, 3040 chan->center_freq, duration); 3041 } 3042 3043 static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy, 3044 struct wireless_dev *wdev, 3045 u64 cookie) 3046 { 3047 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3048 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3049 3050 if (cookie != vif->last_roc_id) 3051 return -ENOENT; 3052 vif->last_cancel_roc_id = cookie; 3053 3054 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx); 3055 } 3056 3057 static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif, 3058 const u8 *buf, size_t len, 3059 unsigned int freq) 3060 { 3061 struct ath6kl *ar = vif->ar; 3062 const u8 *pos; 3063 u8 *p2p; 3064 int p2p_len; 3065 int ret; 3066 const struct ieee80211_mgmt *mgmt; 3067 3068 mgmt = (const struct ieee80211_mgmt *) buf; 3069 3070 /* Include P2P IE(s) from the frame generated in user space. */ 3071 3072 p2p = kmalloc(len, GFP_KERNEL); 3073 if (p2p == NULL) 3074 return -ENOMEM; 3075 p2p_len = 0; 3076 3077 pos = mgmt->u.probe_resp.variable; 3078 while (pos + 1 < buf + len) { 3079 if (pos + 2 + pos[1] > buf + len) 3080 break; 3081 if (ath6kl_is_p2p_ie(pos)) { 3082 memcpy(p2p + p2p_len, pos, 2 + pos[1]); 3083 p2p_len += 2 + pos[1]; 3084 } 3085 pos += 2 + pos[1]; 3086 } 3087 3088 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq, 3089 mgmt->da, p2p, p2p_len); 3090 kfree(p2p); 3091 return ret; 3092 } 3093 3094 static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif, 3095 u32 id, 3096 u32 freq, 3097 u32 wait, 3098 const u8 *buf, 3099 size_t len, 3100 bool *more_data, 3101 bool no_cck) 3102 { 3103 struct ieee80211_mgmt *mgmt; 3104 struct ath6kl_sta *conn; 3105 bool is_psq_empty = false; 3106 struct ath6kl_mgmt_buff *mgmt_buf; 3107 size_t mgmt_buf_size; 3108 struct ath6kl *ar = vif->ar; 3109 3110 mgmt = (struct ieee80211_mgmt *) buf; 3111 if (is_multicast_ether_addr(mgmt->da)) 3112 return false; 3113 3114 conn = ath6kl_find_sta(vif, mgmt->da); 3115 if (!conn) 3116 return false; 3117 3118 if (conn->sta_flags & STA_PS_SLEEP) { 3119 if (!(conn->sta_flags & STA_PS_POLLED)) { 3120 /* Queue the frames if the STA is sleeping */ 3121 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff); 3122 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL); 3123 if (!mgmt_buf) 3124 return false; 3125 3126 INIT_LIST_HEAD(&mgmt_buf->list); 3127 mgmt_buf->id = id; 3128 mgmt_buf->freq = freq; 3129 mgmt_buf->wait = wait; 3130 mgmt_buf->len = len; 3131 mgmt_buf->no_cck = no_cck; 3132 memcpy(mgmt_buf->buf, buf, len); 3133 spin_lock_bh(&conn->psq_lock); 3134 is_psq_empty = skb_queue_empty(&conn->psq) && 3135 (conn->mgmt_psq_len == 0); 3136 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq); 3137 conn->mgmt_psq_len++; 3138 spin_unlock_bh(&conn->psq_lock); 3139 3140 /* 3141 * If this is the first pkt getting queued 3142 * for this STA, update the PVB for this 3143 * STA. 3144 */ 3145 if (is_psq_empty) 3146 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, 3147 conn->aid, 1); 3148 return true; 3149 } 3150 3151 /* 3152 * This tx is because of a PsPoll. 3153 * Determine if MoreData bit has to be set. 3154 */ 3155 spin_lock_bh(&conn->psq_lock); 3156 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0)) 3157 *more_data = true; 3158 spin_unlock_bh(&conn->psq_lock); 3159 } 3160 3161 return false; 3162 } 3163 3164 /* Check if SSID length is greater than DIRECT- */ 3165 static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len) 3166 { 3167 const struct ieee80211_mgmt *mgmt; 3168 mgmt = (const struct ieee80211_mgmt *) buf; 3169 3170 /* variable[1] contains the SSID tag length */ 3171 if (buf + len >= &mgmt->u.probe_resp.variable[1] && 3172 (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) { 3173 return true; 3174 } 3175 3176 return false; 3177 } 3178 3179 static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 3180 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 3181 { 3182 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3183 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3184 struct ieee80211_channel *chan = params->chan; 3185 const u8 *buf = params->buf; 3186 size_t len = params->len; 3187 unsigned int wait = params->wait; 3188 bool no_cck = params->no_cck; 3189 u32 id, freq; 3190 const struct ieee80211_mgmt *mgmt; 3191 bool more_data, queued; 3192 3193 /* default to the current channel, but use the one specified as argument 3194 * if any 3195 */ 3196 freq = vif->ch_hint; 3197 if (chan) 3198 freq = chan->center_freq; 3199 3200 /* never send freq zero to the firmware */ 3201 if (WARN_ON(freq == 0)) 3202 return -EINVAL; 3203 3204 mgmt = (const struct ieee80211_mgmt *) buf; 3205 if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) && 3206 ieee80211_is_probe_resp(mgmt->frame_control) && 3207 ath6kl_is_p2p_go_ssid(buf, len)) { 3208 /* 3209 * Send Probe Response frame in GO mode using a separate WMI 3210 * command to allow the target to fill in the generic IEs. 3211 */ 3212 *cookie = 0; /* TX status not supported */ 3213 return ath6kl_send_go_probe_resp(vif, buf, len, freq); 3214 } 3215 3216 id = vif->send_action_id++; 3217 if (id == 0) { 3218 /* 3219 * 0 is a reserved value in the WMI command and shall not be 3220 * used for the command. 3221 */ 3222 id = vif->send_action_id++; 3223 } 3224 3225 *cookie = id; 3226 3227 /* AP mode Power saving processing */ 3228 if (vif->nw_type == AP_NETWORK) { 3229 queued = ath6kl_mgmt_powersave_ap(vif, id, freq, wait, buf, len, 3230 &more_data, no_cck); 3231 if (queued) 3232 return 0; 3233 } 3234 3235 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, freq, 3236 wait, buf, len, no_cck); 3237 } 3238 3239 static int ath6kl_get_antenna(struct wiphy *wiphy, 3240 u32 *tx_ant, u32 *rx_ant) 3241 { 3242 struct ath6kl *ar = wiphy_priv(wiphy); 3243 *tx_ant = ar->hw.tx_ant; 3244 *rx_ant = ar->hw.rx_ant; 3245 return 0; 3246 } 3247 3248 static void ath6kl_mgmt_frame_register(struct wiphy *wiphy, 3249 struct wireless_dev *wdev, 3250 u16 frame_type, bool reg) 3251 { 3252 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3253 3254 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n", 3255 __func__, frame_type, reg); 3256 if (frame_type == IEEE80211_STYPE_PROBE_REQ) { 3257 /* 3258 * Note: This notification callback is not allowed to sleep, so 3259 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we 3260 * hardcode target to report Probe Request frames all the time. 3261 */ 3262 vif->probe_req_report = reg; 3263 } 3264 } 3265 3266 static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy, 3267 struct net_device *dev, 3268 struct cfg80211_sched_scan_request *request) 3269 { 3270 struct ath6kl *ar = ath6kl_priv(dev); 3271 struct ath6kl_vif *vif = netdev_priv(dev); 3272 u16 interval; 3273 int ret, rssi_thold; 3274 int n_match_sets = request->n_match_sets; 3275 3276 /* 3277 * If there's a matchset w/o an SSID, then assume it's just for 3278 * the RSSI (nothing else is currently supported) and ignore it. 3279 * The device only supports a global RSSI filter that we set below. 3280 */ 3281 if (n_match_sets == 1 && !request->match_sets[0].ssid.ssid_len) 3282 n_match_sets = 0; 3283 3284 if (ar->state != ATH6KL_STATE_ON) 3285 return -EIO; 3286 3287 if (vif->sme_state != SME_DISCONNECTED) 3288 return -EBUSY; 3289 3290 ath6kl_cfg80211_scan_complete_event(vif, true); 3291 3292 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 3293 request->n_ssids, 3294 request->match_sets, 3295 n_match_sets); 3296 if (ret < 0) 3297 return ret; 3298 3299 if (!n_match_sets) { 3300 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3301 ALL_BSS_FILTER, 0); 3302 if (ret < 0) 3303 return ret; 3304 } else { 3305 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3306 MATCHED_SSID_FILTER, 0); 3307 if (ret < 0) 3308 return ret; 3309 } 3310 3311 if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD, 3312 ar->fw_capabilities)) { 3313 if (request->min_rssi_thold <= NL80211_SCAN_RSSI_THOLD_OFF) 3314 rssi_thold = 0; 3315 else if (request->min_rssi_thold < -127) 3316 rssi_thold = -127; 3317 else 3318 rssi_thold = request->min_rssi_thold; 3319 3320 ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx, 3321 rssi_thold); 3322 if (ret) { 3323 ath6kl_err("failed to set RSSI threshold for scan\n"); 3324 return ret; 3325 } 3326 } 3327 3328 /* fw uses seconds, also make sure that it's >0 */ 3329 interval = max_t(u16, 1, request->scan_plans[0].interval); 3330 3331 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 3332 interval, interval, 3333 vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 3334 3335 /* this also clears IE in fw if it's not set */ 3336 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 3337 WMI_FRAME_PROBE_REQ, 3338 request->ie, request->ie_len); 3339 if (ret) { 3340 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n", 3341 ret); 3342 return ret; 3343 } 3344 3345 ret = ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, true); 3346 if (ret) 3347 return ret; 3348 3349 set_bit(SCHED_SCANNING, &vif->flags); 3350 3351 return 0; 3352 } 3353 3354 static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy, 3355 struct net_device *dev) 3356 { 3357 struct ath6kl_vif *vif = netdev_priv(dev); 3358 bool stopped; 3359 3360 stopped = __ath6kl_cfg80211_sscan_stop(vif); 3361 3362 if (!stopped) 3363 return -EIO; 3364 3365 return 0; 3366 } 3367 3368 static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy, 3369 struct net_device *dev, 3370 const u8 *addr, 3371 const struct cfg80211_bitrate_mask *mask) 3372 { 3373 struct ath6kl *ar = ath6kl_priv(dev); 3374 struct ath6kl_vif *vif = netdev_priv(dev); 3375 3376 return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx, 3377 mask); 3378 } 3379 3380 static int ath6kl_cfg80211_set_txe_config(struct wiphy *wiphy, 3381 struct net_device *dev, 3382 u32 rate, u32 pkts, u32 intvl) 3383 { 3384 struct ath6kl *ar = ath6kl_priv(dev); 3385 struct ath6kl_vif *vif = netdev_priv(dev); 3386 3387 if (vif->nw_type != INFRA_NETWORK || 3388 !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, ar->fw_capabilities)) 3389 return -EOPNOTSUPP; 3390 3391 if (vif->sme_state != SME_CONNECTED) 3392 return -ENOTCONN; 3393 3394 /* save this since the firmware won't report the interval */ 3395 vif->txe_intvl = intvl; 3396 3397 return ath6kl_wmi_set_txe_notify(ar->wmi, vif->fw_vif_idx, 3398 rate, pkts, intvl); 3399 } 3400 3401 static const struct ieee80211_txrx_stypes 3402 ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = { 3403 [NL80211_IFTYPE_STATION] = { 3404 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3405 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3406 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3407 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3408 }, 3409 [NL80211_IFTYPE_AP] = { 3410 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3411 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3412 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3413 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3414 }, 3415 [NL80211_IFTYPE_P2P_CLIENT] = { 3416 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3417 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3418 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3419 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3420 }, 3421 [NL80211_IFTYPE_P2P_GO] = { 3422 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3423 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3424 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3425 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3426 }, 3427 }; 3428 3429 static struct cfg80211_ops ath6kl_cfg80211_ops = { 3430 .add_virtual_intf = ath6kl_cfg80211_add_iface, 3431 .del_virtual_intf = ath6kl_cfg80211_del_iface, 3432 .change_virtual_intf = ath6kl_cfg80211_change_iface, 3433 .scan = ath6kl_cfg80211_scan, 3434 .connect = ath6kl_cfg80211_connect, 3435 .disconnect = ath6kl_cfg80211_disconnect, 3436 .add_key = ath6kl_cfg80211_add_key, 3437 .get_key = ath6kl_cfg80211_get_key, 3438 .del_key = ath6kl_cfg80211_del_key, 3439 .set_default_key = ath6kl_cfg80211_set_default_key, 3440 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params, 3441 .set_tx_power = ath6kl_cfg80211_set_txpower, 3442 .get_tx_power = ath6kl_cfg80211_get_txpower, 3443 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt, 3444 .join_ibss = ath6kl_cfg80211_join_ibss, 3445 .leave_ibss = ath6kl_cfg80211_leave_ibss, 3446 .get_station = ath6kl_get_station, 3447 .set_pmksa = ath6kl_set_pmksa, 3448 .del_pmksa = ath6kl_del_pmksa, 3449 .flush_pmksa = ath6kl_flush_pmksa, 3450 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd) 3451 #ifdef CONFIG_PM 3452 .suspend = __ath6kl_cfg80211_suspend, 3453 .resume = __ath6kl_cfg80211_resume, 3454 #endif 3455 .start_ap = ath6kl_start_ap, 3456 .change_beacon = ath6kl_change_beacon, 3457 .stop_ap = ath6kl_stop_ap, 3458 .del_station = ath6kl_del_station, 3459 .change_station = ath6kl_change_station, 3460 .remain_on_channel = ath6kl_remain_on_channel, 3461 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel, 3462 .mgmt_tx = ath6kl_mgmt_tx, 3463 .mgmt_frame_register = ath6kl_mgmt_frame_register, 3464 .get_antenna = ath6kl_get_antenna, 3465 .sched_scan_start = ath6kl_cfg80211_sscan_start, 3466 .sched_scan_stop = ath6kl_cfg80211_sscan_stop, 3467 .set_bitrate_mask = ath6kl_cfg80211_set_bitrate, 3468 .set_cqm_txe_config = ath6kl_cfg80211_set_txe_config, 3469 }; 3470 3471 void ath6kl_cfg80211_stop(struct ath6kl_vif *vif) 3472 { 3473 ath6kl_cfg80211_sscan_disable(vif); 3474 3475 switch (vif->sme_state) { 3476 case SME_DISCONNECTED: 3477 break; 3478 case SME_CONNECTING: 3479 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0, 3480 NULL, 0, 3481 WLAN_STATUS_UNSPECIFIED_FAILURE, 3482 GFP_KERNEL); 3483 break; 3484 case SME_CONNECTED: 3485 cfg80211_disconnected(vif->ndev, 0, NULL, 0, true, GFP_KERNEL); 3486 break; 3487 } 3488 3489 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3490 (test_bit(CONNECTED, &vif->flags) || 3491 test_bit(CONNECT_PEND, &vif->flags))) 3492 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); 3493 3494 vif->sme_state = SME_DISCONNECTED; 3495 clear_bit(CONNECTED, &vif->flags); 3496 clear_bit(CONNECT_PEND, &vif->flags); 3497 3498 /* Stop netdev queues, needed during recovery */ 3499 netif_stop_queue(vif->ndev); 3500 netif_carrier_off(vif->ndev); 3501 3502 /* disable scanning */ 3503 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3504 ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF, 3505 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0) 3506 ath6kl_warn("failed to disable scan during stop\n"); 3507 3508 ath6kl_cfg80211_scan_complete_event(vif, true); 3509 } 3510 3511 void ath6kl_cfg80211_stop_all(struct ath6kl *ar) 3512 { 3513 struct ath6kl_vif *vif; 3514 3515 vif = ath6kl_vif_first(ar); 3516 if (!vif && ar->state != ATH6KL_STATE_RECOVERY) { 3517 /* save the current power mode before enabling power save */ 3518 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 3519 3520 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0) 3521 ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n"); 3522 return; 3523 } 3524 3525 /* 3526 * FIXME: we should take ar->list_lock to protect changes in the 3527 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop() 3528 * sleeps. 3529 */ 3530 list_for_each_entry(vif, &ar->vif_list, list) 3531 ath6kl_cfg80211_stop(vif); 3532 } 3533 3534 static void ath6kl_cfg80211_reg_notify(struct wiphy *wiphy, 3535 struct regulatory_request *request) 3536 { 3537 struct ath6kl *ar = wiphy_priv(wiphy); 3538 u32 rates[NUM_NL80211_BANDS]; 3539 int ret, i; 3540 3541 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 3542 "cfg reg_notify %c%c%s%s initiator %d hint_type %d\n", 3543 request->alpha2[0], request->alpha2[1], 3544 request->intersect ? " intersect" : "", 3545 request->processed ? " processed" : "", 3546 request->initiator, request->user_reg_hint_type); 3547 3548 if (request->user_reg_hint_type != NL80211_USER_REG_HINT_CELL_BASE) 3549 return; 3550 3551 ret = ath6kl_wmi_set_regdomain_cmd(ar->wmi, request->alpha2); 3552 if (ret) { 3553 ath6kl_err("failed to set regdomain: %d\n", ret); 3554 return; 3555 } 3556 3557 /* 3558 * Firmware will apply the regdomain change only after a scan is 3559 * issued and it will send a WMI_REGDOMAIN_EVENTID when it has been 3560 * changed. 3561 */ 3562 3563 for (i = 0; i < NUM_NL80211_BANDS; i++) 3564 if (wiphy->bands[i]) 3565 rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1; 3566 3567 3568 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, 0, WMI_LONG_SCAN, false, 3569 false, 0, ATH6KL_FG_SCAN_INTERVAL, 3570 0, NULL, false, rates); 3571 if (ret) { 3572 ath6kl_err("failed to start scan for a regdomain change: %d\n", 3573 ret); 3574 return; 3575 } 3576 } 3577 3578 static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif) 3579 { 3580 vif->aggr_cntxt = aggr_init(vif); 3581 if (!vif->aggr_cntxt) { 3582 ath6kl_err("failed to initialize aggr\n"); 3583 return -ENOMEM; 3584 } 3585 3586 setup_timer(&vif->disconnect_timer, disconnect_timer_handler, 3587 (unsigned long) vif->ndev); 3588 setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer, 3589 (unsigned long) vif); 3590 3591 set_bit(WMM_ENABLED, &vif->flags); 3592 spin_lock_init(&vif->if_lock); 3593 3594 INIT_LIST_HEAD(&vif->mc_filter); 3595 3596 return 0; 3597 } 3598 3599 void ath6kl_cfg80211_vif_stop(struct ath6kl_vif *vif, bool wmi_ready) 3600 { 3601 static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3602 bool discon_issued; 3603 3604 netif_stop_queue(vif->ndev); 3605 3606 clear_bit(WLAN_ENABLED, &vif->flags); 3607 3608 if (wmi_ready) { 3609 discon_issued = test_bit(CONNECTED, &vif->flags) || 3610 test_bit(CONNECT_PEND, &vif->flags); 3611 ath6kl_disconnect(vif); 3612 del_timer(&vif->disconnect_timer); 3613 3614 if (discon_issued) 3615 ath6kl_disconnect_event(vif, DISCONNECT_CMD, 3616 (vif->nw_type & AP_NETWORK) ? 3617 bcast_mac : vif->bssid, 3618 0, NULL, 0); 3619 } 3620 3621 if (vif->scan_req) { 3622 struct cfg80211_scan_info info = { 3623 .aborted = true, 3624 }; 3625 3626 cfg80211_scan_done(vif->scan_req, &info); 3627 vif->scan_req = NULL; 3628 } 3629 3630 /* need to clean up enhanced bmiss detection fw state */ 3631 ath6kl_cfg80211_sta_bmiss_enhance(vif, false); 3632 } 3633 3634 void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif) 3635 { 3636 struct ath6kl *ar = vif->ar; 3637 struct ath6kl_mc_filter *mc_filter, *tmp; 3638 3639 aggr_module_destroy(vif->aggr_cntxt); 3640 3641 ar->avail_idx_map |= BIT(vif->fw_vif_idx); 3642 3643 if (vif->nw_type == ADHOC_NETWORK) 3644 ar->ibss_if_active = false; 3645 3646 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { 3647 list_del(&mc_filter->list); 3648 kfree(mc_filter); 3649 } 3650 3651 unregister_netdevice(vif->ndev); 3652 3653 ar->num_vif--; 3654 } 3655 3656 static const char ath6kl_gstrings_sta_stats[][ETH_GSTRING_LEN] = { 3657 /* Common stats names used by many drivers. */ 3658 "tx_pkts_nic", "tx_bytes_nic", "rx_pkts_nic", "rx_bytes_nic", 3659 3660 /* TX stats. */ 3661 "d_tx_ucast_pkts", "d_tx_bcast_pkts", 3662 "d_tx_ucast_bytes", "d_tx_bcast_bytes", 3663 "d_tx_rts_ok", "d_tx_error", "d_tx_fail", 3664 "d_tx_retry", "d_tx_multi_retry", "d_tx_rts_fail", 3665 "d_tx_tkip_counter_measures", 3666 3667 /* RX Stats. */ 3668 "d_rx_ucast_pkts", "d_rx_ucast_rate", "d_rx_bcast_pkts", 3669 "d_rx_ucast_bytes", "d_rx_bcast_bytes", "d_rx_frag_pkt", 3670 "d_rx_error", "d_rx_crc_err", "d_rx_keycache_miss", 3671 "d_rx_decrypt_crc_err", "d_rx_duplicate_frames", 3672 "d_rx_mic_err", "d_rx_tkip_format_err", "d_rx_ccmp_format_err", 3673 "d_rx_ccmp_replay_err", 3674 3675 /* Misc stats. */ 3676 "d_beacon_miss", "d_num_connects", "d_num_disconnects", 3677 "d_beacon_avg_rssi", "d_arp_received", "d_arp_matched", 3678 "d_arp_replied" 3679 }; 3680 3681 #define ATH6KL_STATS_LEN ARRAY_SIZE(ath6kl_gstrings_sta_stats) 3682 3683 static int ath6kl_get_sset_count(struct net_device *dev, int sset) 3684 { 3685 int rv = 0; 3686 3687 if (sset == ETH_SS_STATS) 3688 rv += ATH6KL_STATS_LEN; 3689 3690 if (rv == 0) 3691 return -EOPNOTSUPP; 3692 return rv; 3693 } 3694 3695 static void ath6kl_get_stats(struct net_device *dev, 3696 struct ethtool_stats *stats, 3697 u64 *data) 3698 { 3699 struct ath6kl_vif *vif = netdev_priv(dev); 3700 struct ath6kl *ar = vif->ar; 3701 int i = 0; 3702 struct target_stats *tgt_stats; 3703 3704 memset(data, 0, sizeof(u64) * ATH6KL_STATS_LEN); 3705 3706 ath6kl_read_tgt_stats(ar, vif); 3707 3708 tgt_stats = &vif->target_stats; 3709 3710 data[i++] = tgt_stats->tx_ucast_pkt + tgt_stats->tx_bcast_pkt; 3711 data[i++] = tgt_stats->tx_ucast_byte + tgt_stats->tx_bcast_byte; 3712 data[i++] = tgt_stats->rx_ucast_pkt + tgt_stats->rx_bcast_pkt; 3713 data[i++] = tgt_stats->rx_ucast_byte + tgt_stats->rx_bcast_byte; 3714 3715 data[i++] = tgt_stats->tx_ucast_pkt; 3716 data[i++] = tgt_stats->tx_bcast_pkt; 3717 data[i++] = tgt_stats->tx_ucast_byte; 3718 data[i++] = tgt_stats->tx_bcast_byte; 3719 data[i++] = tgt_stats->tx_rts_success_cnt; 3720 data[i++] = tgt_stats->tx_err; 3721 data[i++] = tgt_stats->tx_fail_cnt; 3722 data[i++] = tgt_stats->tx_retry_cnt; 3723 data[i++] = tgt_stats->tx_mult_retry_cnt; 3724 data[i++] = tgt_stats->tx_rts_fail_cnt; 3725 data[i++] = tgt_stats->tkip_cnter_measures_invoked; 3726 3727 data[i++] = tgt_stats->rx_ucast_pkt; 3728 data[i++] = tgt_stats->rx_ucast_rate; 3729 data[i++] = tgt_stats->rx_bcast_pkt; 3730 data[i++] = tgt_stats->rx_ucast_byte; 3731 data[i++] = tgt_stats->rx_bcast_byte; 3732 data[i++] = tgt_stats->rx_frgment_pkt; 3733 data[i++] = tgt_stats->rx_err; 3734 data[i++] = tgt_stats->rx_crc_err; 3735 data[i++] = tgt_stats->rx_key_cache_miss; 3736 data[i++] = tgt_stats->rx_decrypt_err; 3737 data[i++] = tgt_stats->rx_dupl_frame; 3738 data[i++] = tgt_stats->tkip_local_mic_fail; 3739 data[i++] = tgt_stats->tkip_fmt_err; 3740 data[i++] = tgt_stats->ccmp_fmt_err; 3741 data[i++] = tgt_stats->ccmp_replays; 3742 3743 data[i++] = tgt_stats->cs_bmiss_cnt; 3744 data[i++] = tgt_stats->cs_connect_cnt; 3745 data[i++] = tgt_stats->cs_discon_cnt; 3746 data[i++] = tgt_stats->cs_ave_beacon_rssi; 3747 data[i++] = tgt_stats->arp_received; 3748 data[i++] = tgt_stats->arp_matched; 3749 data[i++] = tgt_stats->arp_replied; 3750 3751 if (i != ATH6KL_STATS_LEN) { 3752 WARN_ON_ONCE(1); 3753 ath6kl_err("ethtool stats error, i: %d STATS_LEN: %d\n", 3754 i, (int)ATH6KL_STATS_LEN); 3755 } 3756 } 3757 3758 /* These stats are per NIC, not really per vdev, so we just ignore dev. */ 3759 static void ath6kl_get_strings(struct net_device *dev, u32 sset, u8 *data) 3760 { 3761 int sz_sta_stats = 0; 3762 3763 if (sset == ETH_SS_STATS) { 3764 sz_sta_stats = sizeof(ath6kl_gstrings_sta_stats); 3765 memcpy(data, ath6kl_gstrings_sta_stats, sz_sta_stats); 3766 } 3767 } 3768 3769 static const struct ethtool_ops ath6kl_ethtool_ops = { 3770 .get_drvinfo = cfg80211_get_drvinfo, 3771 .get_link = ethtool_op_get_link, 3772 .get_strings = ath6kl_get_strings, 3773 .get_ethtool_stats = ath6kl_get_stats, 3774 .get_sset_count = ath6kl_get_sset_count, 3775 }; 3776 3777 struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name, 3778 unsigned char name_assign_type, 3779 enum nl80211_iftype type, 3780 u8 fw_vif_idx, u8 nw_type) 3781 { 3782 struct net_device *ndev; 3783 struct ath6kl_vif *vif; 3784 3785 ndev = alloc_netdev(sizeof(*vif), name, name_assign_type, ether_setup); 3786 if (!ndev) 3787 return NULL; 3788 3789 vif = netdev_priv(ndev); 3790 ndev->ieee80211_ptr = &vif->wdev; 3791 vif->wdev.wiphy = ar->wiphy; 3792 vif->ar = ar; 3793 vif->ndev = ndev; 3794 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy)); 3795 vif->wdev.netdev = ndev; 3796 vif->wdev.iftype = type; 3797 vif->fw_vif_idx = fw_vif_idx; 3798 vif->nw_type = nw_type; 3799 vif->next_mode = nw_type; 3800 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL; 3801 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME; 3802 vif->bg_scan_period = 0; 3803 vif->htcap[NL80211_BAND_2GHZ].ht_enable = true; 3804 vif->htcap[NL80211_BAND_5GHZ].ht_enable = true; 3805 3806 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); 3807 if (fw_vif_idx != 0) { 3808 ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) | 3809 0x2; 3810 if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR, 3811 ar->fw_capabilities)) 3812 ndev->dev_addr[4] ^= 0x80; 3813 } 3814 3815 init_netdev(ndev); 3816 3817 ath6kl_init_control_info(vif); 3818 3819 if (ath6kl_cfg80211_vif_init(vif)) 3820 goto err; 3821 3822 netdev_set_default_ethtool_ops(ndev, &ath6kl_ethtool_ops); 3823 3824 if (register_netdevice(ndev)) 3825 goto err; 3826 3827 ar->avail_idx_map &= ~BIT(fw_vif_idx); 3828 vif->sme_state = SME_DISCONNECTED; 3829 set_bit(WLAN_ENABLED, &vif->flags); 3830 ar->wlan_pwr_state = WLAN_POWER_STATE_ON; 3831 3832 if (type == NL80211_IFTYPE_ADHOC) 3833 ar->ibss_if_active = true; 3834 3835 spin_lock_bh(&ar->list_lock); 3836 list_add_tail(&vif->list, &ar->vif_list); 3837 spin_unlock_bh(&ar->list_lock); 3838 3839 return &vif->wdev; 3840 3841 err: 3842 aggr_module_destroy(vif->aggr_cntxt); 3843 free_netdev(ndev); 3844 return NULL; 3845 } 3846 3847 #ifdef CONFIG_PM 3848 static const struct wiphy_wowlan_support ath6kl_wowlan_support = { 3849 .flags = WIPHY_WOWLAN_MAGIC_PKT | 3850 WIPHY_WOWLAN_DISCONNECT | 3851 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 3852 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 3853 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 3854 WIPHY_WOWLAN_4WAY_HANDSHAKE, 3855 .n_patterns = WOW_MAX_FILTERS_PER_LIST, 3856 .pattern_min_len = 1, 3857 .pattern_max_len = WOW_PATTERN_SIZE, 3858 }; 3859 #endif 3860 3861 int ath6kl_cfg80211_init(struct ath6kl *ar) 3862 { 3863 struct wiphy *wiphy = ar->wiphy; 3864 bool band_2gig = false, band_5gig = false, ht = false; 3865 int ret; 3866 3867 wiphy->mgmt_stypes = ath6kl_mgmt_stypes; 3868 3869 wiphy->max_remain_on_channel_duration = 5000; 3870 3871 /* set device pointer for wiphy */ 3872 set_wiphy_dev(wiphy, ar->dev); 3873 3874 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 3875 BIT(NL80211_IFTYPE_ADHOC) | 3876 BIT(NL80211_IFTYPE_AP); 3877 if (ar->p2p) { 3878 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) | 3879 BIT(NL80211_IFTYPE_P2P_CLIENT); 3880 } 3881 3882 if (IS_ENABLED(CONFIG_ATH6KL_REGDOMAIN) && 3883 test_bit(ATH6KL_FW_CAPABILITY_REGDOMAIN, ar->fw_capabilities)) { 3884 wiphy->reg_notifier = ath6kl_cfg80211_reg_notify; 3885 ar->wiphy->features |= NL80211_FEATURE_CELL_BASE_REG_HINTS; 3886 } 3887 3888 /* max num of ssids that can be probed during scanning */ 3889 wiphy->max_scan_ssids = MAX_PROBED_SSIDS; 3890 3891 /* max num of ssids that can be matched after scan */ 3892 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST, 3893 ar->fw_capabilities)) 3894 wiphy->max_match_sets = MAX_PROBED_SSIDS; 3895 3896 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ 3897 switch (ar->hw.cap) { 3898 case WMI_11AN_CAP: 3899 ht = true; 3900 case WMI_11A_CAP: 3901 band_5gig = true; 3902 break; 3903 case WMI_11GN_CAP: 3904 ht = true; 3905 case WMI_11G_CAP: 3906 band_2gig = true; 3907 break; 3908 case WMI_11AGN_CAP: 3909 ht = true; 3910 case WMI_11AG_CAP: 3911 band_2gig = true; 3912 band_5gig = true; 3913 break; 3914 default: 3915 ath6kl_err("invalid phy capability!\n"); 3916 return -EINVAL; 3917 } 3918 3919 /* 3920 * Even if the fw has HT support, advertise HT cap only when 3921 * the firmware has support to override RSN capability, otherwise 3922 * 4-way handshake would fail. 3923 */ 3924 if (!(ht && 3925 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 3926 ar->fw_capabilities))) { 3927 ath6kl_band_2ghz.ht_cap.cap = 0; 3928 ath6kl_band_2ghz.ht_cap.ht_supported = false; 3929 ath6kl_band_5ghz.ht_cap.cap = 0; 3930 ath6kl_band_5ghz.ht_cap.ht_supported = false; 3931 3932 if (ht) 3933 ath6kl_err("Firmware lacks RSN-CAP-OVERRIDE, so HT (802.11n) is disabled."); 3934 } 3935 3936 if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES, 3937 ar->fw_capabilities)) { 3938 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3939 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3940 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3941 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3942 ar->hw.tx_ant = 0x3; /* mask, 2 antenna */ 3943 ar->hw.rx_ant = 0x3; 3944 } else { 3945 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3946 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3947 ar->hw.tx_ant = 1; 3948 ar->hw.rx_ant = 1; 3949 } 3950 3951 wiphy->available_antennas_tx = ar->hw.tx_ant; 3952 wiphy->available_antennas_rx = ar->hw.rx_ant; 3953 3954 if (band_2gig) 3955 wiphy->bands[NL80211_BAND_2GHZ] = &ath6kl_band_2ghz; 3956 if (band_5gig) 3957 wiphy->bands[NL80211_BAND_5GHZ] = &ath6kl_band_5ghz; 3958 3959 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 3960 3961 wiphy->cipher_suites = cipher_suites; 3962 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 3963 3964 #ifdef CONFIG_PM 3965 wiphy->wowlan = &ath6kl_wowlan_support; 3966 #endif 3967 3968 wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS; 3969 3970 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | 3971 WIPHY_FLAG_HAVE_AP_SME | 3972 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 3973 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 3974 3975 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, ar->fw_capabilities)) 3976 ar->wiphy->max_sched_scan_reqs = 1; 3977 3978 if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT, 3979 ar->fw_capabilities)) 3980 ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 3981 3982 ar->wiphy->probe_resp_offload = 3983 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 3984 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 3985 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 3986 3987 ret = wiphy_register(wiphy); 3988 if (ret < 0) { 3989 ath6kl_err("couldn't register wiphy device\n"); 3990 return ret; 3991 } 3992 3993 ar->wiphy_registered = true; 3994 3995 return 0; 3996 } 3997 3998 void ath6kl_cfg80211_cleanup(struct ath6kl *ar) 3999 { 4000 wiphy_unregister(ar->wiphy); 4001 4002 ar->wiphy_registered = false; 4003 } 4004 4005 struct ath6kl *ath6kl_cfg80211_create(void) 4006 { 4007 struct ath6kl *ar; 4008 struct wiphy *wiphy; 4009 4010 /* create a new wiphy for use with cfg80211 */ 4011 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); 4012 4013 if (!wiphy) { 4014 ath6kl_err("couldn't allocate wiphy device\n"); 4015 return NULL; 4016 } 4017 4018 ar = wiphy_priv(wiphy); 4019 ar->wiphy = wiphy; 4020 4021 return ar; 4022 } 4023 4024 /* Note: ar variable must not be accessed after calling this! */ 4025 void ath6kl_cfg80211_destroy(struct ath6kl *ar) 4026 { 4027 int i; 4028 4029 for (i = 0; i < AP_MAX_NUM_STA; i++) 4030 kfree(ar->sta_list[i].aggr_conn); 4031 4032 wiphy_free(ar->wiphy); 4033 } 4034 4035